unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
blob 14012634ccc58bd97db9a3f30ce0f2a7ab5246d7 180851 bytes (raw)
name: src/comp.c 	 # note: path name is non-authoritative(*)

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
 
/* Compile Emacs Lisp into native code.
   Copyright (C) 2019-2022 Free Software Foundation, Inc.

Author: Andrea Corallo <akrl@sdf.org>

This file is part of GNU Emacs.

GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.

GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */

#include <config.h>

#include "lisp.h"

#ifdef HAVE_NATIVE_COMP

#include <setjmp.h>
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <libgccjit.h>
#include <epaths.h>

#include "puresize.h"
#include "window.h"
#include "dynlib.h"
#include "buffer.h"
#include "blockinput.h"
#include "coding.h"
#include "md5.h"
#include "sysstdio.h"
#include "zlib.h"

\f
/********************************/
/* Dynamic loading of libgccjit */
/********************************/

#ifdef WINDOWSNT
# include "w32common.h"

#undef gcc_jit_block_add_assignment
#undef gcc_jit_block_add_comment
#undef gcc_jit_block_add_eval
#undef gcc_jit_block_end_with_conditional
#undef gcc_jit_block_end_with_jump
#undef gcc_jit_block_end_with_return
#undef gcc_jit_block_end_with_void_return
#undef gcc_jit_context_acquire
#undef gcc_jit_context_add_command_line_option
#undef gcc_jit_context_add_driver_option
#undef gcc_jit_context_compile_to_file
#undef gcc_jit_context_dump_reproducer_to_file
#undef gcc_jit_context_dump_to_file
#undef gcc_jit_context_get_builtin_function
#undef gcc_jit_context_get_first_error
#undef gcc_jit_context_get_int_type
#undef gcc_jit_context_get_type
#undef gcc_jit_context_new_array_access
#undef gcc_jit_context_new_array_type
#undef gcc_jit_context_new_bitcast
#undef gcc_jit_context_new_binary_op
#undef gcc_jit_context_new_call
#undef gcc_jit_context_new_call_through_ptr
#undef gcc_jit_context_new_cast
#undef gcc_jit_context_new_comparison
#undef gcc_jit_context_new_field
#undef gcc_jit_context_new_function
#undef gcc_jit_context_new_function_ptr_type
#undef gcc_jit_context_new_global
#undef gcc_jit_context_new_opaque_struct
#undef gcc_jit_context_new_param
#undef gcc_jit_context_new_rvalue_from_int
#undef gcc_jit_context_new_rvalue_from_long
#undef gcc_jit_context_new_rvalue_from_ptr
#undef gcc_jit_context_new_string_literal
#undef gcc_jit_context_new_struct_type
#undef gcc_jit_context_new_unary_op
#undef gcc_jit_context_new_union_type
#undef gcc_jit_context_release
#undef gcc_jit_context_set_bool_option
#undef gcc_jit_context_set_int_option
#undef gcc_jit_context_set_logfile
#undef gcc_jit_context_set_str_option
#undef gcc_jit_function_get_param
#undef gcc_jit_function_new_block
#undef gcc_jit_function_new_local
#undef gcc_jit_global_set_initializer
#undef gcc_jit_lvalue_access_field
#undef gcc_jit_lvalue_as_rvalue
#undef gcc_jit_lvalue_get_address
#undef gcc_jit_param_as_lvalue
#undef gcc_jit_param_as_rvalue
#undef gcc_jit_rvalue_access_field
#undef gcc_jit_rvalue_dereference
#undef gcc_jit_rvalue_dereference_field
#undef gcc_jit_rvalue_get_type
#undef gcc_jit_struct_as_type
#undef gcc_jit_struct_set_fields
#undef gcc_jit_type_get_const
#undef gcc_jit_type_get_pointer
#undef gcc_jit_type_is_pointer
#undef gcc_jit_version_major
#undef gcc_jit_version_minor
#undef gcc_jit_version_patchlevel

/* In alphabetical order */
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_rvalue_from_int,
            (gcc_jit_context *ctxt, gcc_jit_type *numeric_type, int value));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_lvalue_as_rvalue,
            (gcc_jit_lvalue *lvalue));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_rvalue_access_field,
            (gcc_jit_rvalue *struct_or_union, gcc_jit_location *loc,
             gcc_jit_field *field));
DEF_DLL_FN (void, gcc_jit_block_add_comment,
            (gcc_jit_block *block, gcc_jit_location *loc, const char *text));
DEF_DLL_FN (void, gcc_jit_context_release, (gcc_jit_context *ctxt));
DEF_DLL_FN (const char *, gcc_jit_context_get_first_error,
            (gcc_jit_context *ctxt));
DEF_DLL_FN (gcc_jit_block *, gcc_jit_function_new_block,
            (gcc_jit_function *func, const char *name));
DEF_DLL_FN (gcc_jit_context *, gcc_jit_context_acquire, (void));
DEF_DLL_FN (void, gcc_jit_context_add_command_line_option,
            (gcc_jit_context *ctxt, const char *optname));
DEF_DLL_FN (void, gcc_jit_context_add_driver_option,
            (gcc_jit_context *ctxt, const char *optname));
DEF_DLL_FN (gcc_jit_field *, gcc_jit_context_new_field,
            (gcc_jit_context *ctxt, gcc_jit_location *loc, gcc_jit_type *type,
             const char *name));
DEF_DLL_FN (gcc_jit_function *, gcc_jit_context_get_builtin_function,
            (gcc_jit_context *ctxt, const char *name));
DEF_DLL_FN (gcc_jit_function *, gcc_jit_context_new_function,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             enum gcc_jit_function_kind kind, gcc_jit_type *return_type,
             const char *name, int num_params, gcc_jit_param **params,
             int is_variadic));
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_context_new_array_access,
            (gcc_jit_context *ctxt, gcc_jit_location *loc, gcc_jit_rvalue *ptr,
             gcc_jit_rvalue *index));
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_context_new_global,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             enum gcc_jit_global_kind kind, gcc_jit_type *type,
             const char *name));
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_function_new_local,
            (gcc_jit_function *func, gcc_jit_location *loc, gcc_jit_type *type,
             const char *name));
#if defined (LIBGCCJIT_HAVE_gcc_jit_global_set_initializer)
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_global_set_initializer,
	    (gcc_jit_lvalue *global, const void *blob, size_t num_bytes));
#endif
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_lvalue_access_field,
            (gcc_jit_lvalue *struct_or_union, gcc_jit_location *loc,
             gcc_jit_field *field));
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_param_as_lvalue, (gcc_jit_param *param));
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_rvalue_dereference,
            (gcc_jit_rvalue *rvalue, gcc_jit_location *loc));
DEF_DLL_FN (gcc_jit_lvalue *, gcc_jit_rvalue_dereference_field,
            (gcc_jit_rvalue *ptr, gcc_jit_location *loc, gcc_jit_field *field));
DEF_DLL_FN (gcc_jit_param *, gcc_jit_context_new_param,
            (gcc_jit_context *ctxt, gcc_jit_location *loc, gcc_jit_type *type,
             const char *name));
DEF_DLL_FN (gcc_jit_param *, gcc_jit_function_get_param,
            (gcc_jit_function *func, int index));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_binary_op,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             enum gcc_jit_binary_op op, gcc_jit_type *result_type,
             gcc_jit_rvalue *a, gcc_jit_rvalue *b));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_call,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             gcc_jit_function *func, int numargs , gcc_jit_rvalue **args));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_call_through_ptr,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             gcc_jit_rvalue *fn_ptr, int numargs, gcc_jit_rvalue **args));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_cast,
            (gcc_jit_context * ctxt, gcc_jit_location *loc,
             gcc_jit_rvalue *rvalue, gcc_jit_type *type));
#ifdef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_bitcast,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             gcc_jit_rvalue *rvalue, gcc_jit_type *type));
#endif
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_comparison,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             enum gcc_jit_comparison op, gcc_jit_rvalue *a, gcc_jit_rvalue *b));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_rvalue_from_long,
            (gcc_jit_context *ctxt, gcc_jit_type *numeric_type, long value));
#if LISP_WORDS_ARE_POINTERS
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_rvalue_from_ptr,
            (gcc_jit_context *ctxt, gcc_jit_type *pointer_type, void *value));
#endif
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_string_literal,
            (gcc_jit_context *ctxt, const char *value));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_context_new_unary_op,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             enum gcc_jit_unary_op op, gcc_jit_type *result_type,
             gcc_jit_rvalue *rvalue));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_lvalue_get_address,
            (gcc_jit_lvalue *lvalue, gcc_jit_location *loc));
DEF_DLL_FN (gcc_jit_rvalue *, gcc_jit_param_as_rvalue, (gcc_jit_param *param));
DEF_DLL_FN (gcc_jit_struct *, gcc_jit_context_new_opaque_struct,
            (gcc_jit_context *ctxt, gcc_jit_location *loc, const char *name));
DEF_DLL_FN (gcc_jit_struct *, gcc_jit_context_new_struct_type,
            (gcc_jit_context *ctxt, gcc_jit_location *loc, const char *name,
             int num_fields, gcc_jit_field **fields));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_context_get_int_type,
            (gcc_jit_context *ctxt, int num_bytes, int is_signed));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_context_get_type,
            (gcc_jit_context *ctxt, enum gcc_jit_types type_));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_context_new_array_type,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             gcc_jit_type *element_type, int num_elements));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_context_new_function_ptr_type,
            (gcc_jit_context *ctxt, gcc_jit_location *loc,
             gcc_jit_type *return_type, int num_params,
             gcc_jit_type **param_types, int is_variadic));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_context_new_union_type,
            (gcc_jit_context *ctxt, gcc_jit_location *loc, const char *name,
             int num_fields, gcc_jit_field **fields));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_rvalue_get_type, (gcc_jit_rvalue *rvalue));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_struct_as_type,
            (gcc_jit_struct *struct_type));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_type_get_const, (gcc_jit_type *type));
DEF_DLL_FN (gcc_jit_type *, gcc_jit_type_get_pointer, (gcc_jit_type *type));
#ifdef LIBGCCJIT_HAVE_REFLECTION
DEF_DLL_FN (gcc_jit_type *, gcc_jit_type_is_pointer, (gcc_jit_type *type));
#endif
DEF_DLL_FN (void, gcc_jit_block_add_assignment,
            (gcc_jit_block *block, gcc_jit_location *loc, gcc_jit_lvalue *lvalue,
             gcc_jit_rvalue *rvalue));
DEF_DLL_FN (void, gcc_jit_block_add_eval,
            (gcc_jit_block *block, gcc_jit_location *loc,
             gcc_jit_rvalue *rvalue));
DEF_DLL_FN (void, gcc_jit_block_end_with_conditional,
            (gcc_jit_block *block, gcc_jit_location *loc,
             gcc_jit_rvalue *boolval, gcc_jit_block *on_true,
             gcc_jit_block *on_false));
DEF_DLL_FN (void, gcc_jit_block_end_with_jump,
            (gcc_jit_block *block, gcc_jit_location *loc,
             gcc_jit_block *target));
DEF_DLL_FN (void, gcc_jit_block_end_with_return,
            (gcc_jit_block *block, gcc_jit_location *loc,
             gcc_jit_rvalue *rvalue));
DEF_DLL_FN (void, gcc_jit_block_end_with_void_return,
            (gcc_jit_block *block, gcc_jit_location *loc));
DEF_DLL_FN (void, gcc_jit_context_compile_to_file,
            (gcc_jit_context *ctxt, enum gcc_jit_output_kind output_kind,
             const char *output_path));
DEF_DLL_FN (void, gcc_jit_context_dump_reproducer_to_file,
            (gcc_jit_context *ctxt, const char *path));
DEF_DLL_FN (void, gcc_jit_context_dump_to_file,
            (gcc_jit_context *ctxt, const char *path, int update_locations));
DEF_DLL_FN (void, gcc_jit_context_set_bool_option,
            (gcc_jit_context *ctxt, enum gcc_jit_bool_option opt, int value));
DEF_DLL_FN (void, gcc_jit_context_set_int_option,
            (gcc_jit_context *ctxt, enum gcc_jit_int_option opt, int value));
DEF_DLL_FN (void, gcc_jit_context_set_logfile,
            (gcc_jit_context *ctxt, FILE *logfile, int flags, int verbosity));
DEF_DLL_FN (void, gcc_jit_context_set_str_option,
	    (gcc_jit_context *ctxt, enum gcc_jit_str_option opt,
	     const char *value));
DEF_DLL_FN (void, gcc_jit_struct_set_fields,
            (gcc_jit_struct *struct_type, gcc_jit_location *loc, int num_fields,
             gcc_jit_field **fields));
#if defined (LIBGCCJIT_HAVE_gcc_jit_version)
DEF_DLL_FN (int, gcc_jit_version_major, (void));
DEF_DLL_FN (int, gcc_jit_version_minor, (void));
DEF_DLL_FN (int, gcc_jit_version_patchlevel, (void));
#endif

static bool
init_gccjit_functions (void)
{
  HMODULE library = w32_delayed_load (Qgccjit);

  if (!library)
    return false;

  /* In alphabetical order */
  LOAD_DLL_FN (library, gcc_jit_block_add_assignment);
  LOAD_DLL_FN (library, gcc_jit_block_add_comment);
  LOAD_DLL_FN (library, gcc_jit_block_add_eval);
  LOAD_DLL_FN (library, gcc_jit_block_end_with_conditional);
  LOAD_DLL_FN (library, gcc_jit_block_end_with_jump);
  LOAD_DLL_FN (library, gcc_jit_block_end_with_return);
  LOAD_DLL_FN (library, gcc_jit_block_end_with_void_return);
  LOAD_DLL_FN (library, gcc_jit_context_acquire);
  LOAD_DLL_FN (library, gcc_jit_context_compile_to_file);
  LOAD_DLL_FN (library, gcc_jit_context_dump_reproducer_to_file);
  LOAD_DLL_FN (library, gcc_jit_context_dump_to_file);
  LOAD_DLL_FN (library, gcc_jit_context_get_builtin_function);
  LOAD_DLL_FN (library, gcc_jit_context_get_first_error);
  LOAD_DLL_FN (library, gcc_jit_context_get_int_type);
  LOAD_DLL_FN (library, gcc_jit_context_get_type);
  LOAD_DLL_FN (library, gcc_jit_context_new_array_access);
  LOAD_DLL_FN (library, gcc_jit_context_new_array_type);
#ifdef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
  LOAD_DLL_FN (library, gcc_jit_context_new_bitcast);
#endif
  LOAD_DLL_FN (library, gcc_jit_context_new_binary_op);
  LOAD_DLL_FN (library, gcc_jit_context_new_call);
  LOAD_DLL_FN (library, gcc_jit_context_new_call_through_ptr);
  LOAD_DLL_FN (library, gcc_jit_context_new_cast);
  LOAD_DLL_FN (library, gcc_jit_context_new_comparison);
  LOAD_DLL_FN (library, gcc_jit_context_new_field);
  LOAD_DLL_FN (library, gcc_jit_context_new_function);
  LOAD_DLL_FN (library, gcc_jit_context_new_function_ptr_type);
  LOAD_DLL_FN (library, gcc_jit_context_new_global);
  LOAD_DLL_FN (library, gcc_jit_context_new_opaque_struct);
  LOAD_DLL_FN (library, gcc_jit_context_new_param);
  LOAD_DLL_FN (library, gcc_jit_context_new_rvalue_from_int);
  LOAD_DLL_FN (library, gcc_jit_context_new_rvalue_from_long);
#if LISP_WORDS_ARE_POINTERS
  LOAD_DLL_FN (library, gcc_jit_context_new_rvalue_from_ptr);
#endif
  LOAD_DLL_FN (library, gcc_jit_context_new_string_literal);
  LOAD_DLL_FN (library, gcc_jit_context_new_struct_type);
  LOAD_DLL_FN (library, gcc_jit_context_new_unary_op);
  LOAD_DLL_FN (library, gcc_jit_context_new_union_type);
  LOAD_DLL_FN (library, gcc_jit_context_release);
  LOAD_DLL_FN (library, gcc_jit_context_set_bool_option);
  LOAD_DLL_FN (library, gcc_jit_context_set_int_option);
  LOAD_DLL_FN (library, gcc_jit_context_set_logfile);
  LOAD_DLL_FN (library, gcc_jit_context_set_str_option);
  LOAD_DLL_FN (library, gcc_jit_function_get_param);
  LOAD_DLL_FN (library, gcc_jit_function_new_block);
  LOAD_DLL_FN (library, gcc_jit_function_new_local);
  LOAD_DLL_FN (library, gcc_jit_lvalue_access_field);
  LOAD_DLL_FN (library, gcc_jit_lvalue_as_rvalue);
  LOAD_DLL_FN (library, gcc_jit_lvalue_get_address);
  LOAD_DLL_FN (library, gcc_jit_param_as_lvalue);
  LOAD_DLL_FN (library, gcc_jit_param_as_rvalue);
  LOAD_DLL_FN (library, gcc_jit_rvalue_access_field);
  LOAD_DLL_FN (library, gcc_jit_rvalue_dereference);
  LOAD_DLL_FN (library, gcc_jit_rvalue_dereference_field);
  LOAD_DLL_FN (library, gcc_jit_rvalue_get_type);
  LOAD_DLL_FN (library, gcc_jit_struct_as_type);
  LOAD_DLL_FN (library, gcc_jit_struct_set_fields);
  LOAD_DLL_FN (library, gcc_jit_type_get_const);
  LOAD_DLL_FN (library, gcc_jit_type_get_pointer);
#ifdef LIBGCCJIT_HAVE_REFLECTION
  LOAD_DLL_FN (library, gcc_jit_type_is_pointer);
#endif
  LOAD_DLL_FN_OPT (library, gcc_jit_context_add_command_line_option);
  LOAD_DLL_FN_OPT (library, gcc_jit_context_add_driver_option);
#if defined (LIBGCCJIT_HAVE_gcc_jit_global_set_initializer)
  LOAD_DLL_FN_OPT (library, gcc_jit_global_set_initializer);
#endif
#if defined (LIBGCCJIT_HAVE_gcc_jit_version)
  LOAD_DLL_FN_OPT (library, gcc_jit_version_major);
  LOAD_DLL_FN_OPT (library, gcc_jit_version_minor);
  LOAD_DLL_FN_OPT (library, gcc_jit_version_patchlevel);
#endif

  return true;
}

/* In alphabetical order */
#define gcc_jit_block_add_assignment fn_gcc_jit_block_add_assignment
#define gcc_jit_block_add_comment fn_gcc_jit_block_add_comment
#define gcc_jit_block_add_eval fn_gcc_jit_block_add_eval
#define gcc_jit_block_end_with_conditional fn_gcc_jit_block_end_with_conditional
#define gcc_jit_block_end_with_jump fn_gcc_jit_block_end_with_jump
#define gcc_jit_block_end_with_return fn_gcc_jit_block_end_with_return
#define gcc_jit_block_end_with_void_return fn_gcc_jit_block_end_with_void_return
#define gcc_jit_context_acquire fn_gcc_jit_context_acquire
#define gcc_jit_context_add_command_line_option fn_gcc_jit_context_add_command_line_option
#define gcc_jit_context_add_driver_option fn_gcc_jit_context_add_driver_option
#define gcc_jit_context_compile_to_file fn_gcc_jit_context_compile_to_file
#define gcc_jit_context_dump_reproducer_to_file fn_gcc_jit_context_dump_reproducer_to_file
#define gcc_jit_context_dump_to_file fn_gcc_jit_context_dump_to_file
#define gcc_jit_context_get_builtin_function fn_gcc_jit_context_get_builtin_function
#define gcc_jit_context_get_first_error fn_gcc_jit_context_get_first_error
#define gcc_jit_context_get_int_type fn_gcc_jit_context_get_int_type
#define gcc_jit_context_get_type fn_gcc_jit_context_get_type
#define gcc_jit_context_new_array_access fn_gcc_jit_context_new_array_access
#define gcc_jit_context_new_array_type fn_gcc_jit_context_new_array_type
#ifdef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
# define gcc_jit_context_new_bitcast fn_gcc_jit_context_new_bitcast
#endif
#define gcc_jit_context_new_binary_op fn_gcc_jit_context_new_binary_op
#define gcc_jit_context_new_call fn_gcc_jit_context_new_call
#define gcc_jit_context_new_call_through_ptr fn_gcc_jit_context_new_call_through_ptr
#define gcc_jit_context_new_cast fn_gcc_jit_context_new_cast
#define gcc_jit_context_new_comparison fn_gcc_jit_context_new_comparison
#define gcc_jit_context_new_field fn_gcc_jit_context_new_field
#define gcc_jit_context_new_function fn_gcc_jit_context_new_function
#define gcc_jit_context_new_function_ptr_type fn_gcc_jit_context_new_function_ptr_type
#define gcc_jit_context_new_global fn_gcc_jit_context_new_global
#define gcc_jit_context_new_opaque_struct fn_gcc_jit_context_new_opaque_struct
#define gcc_jit_context_new_param fn_gcc_jit_context_new_param
#define gcc_jit_context_new_rvalue_from_int fn_gcc_jit_context_new_rvalue_from_int
#define gcc_jit_context_new_rvalue_from_long fn_gcc_jit_context_new_rvalue_from_long
#if LISP_WORDS_ARE_POINTERS
# define gcc_jit_context_new_rvalue_from_ptr fn_gcc_jit_context_new_rvalue_from_ptr
#endif
#define gcc_jit_context_new_string_literal fn_gcc_jit_context_new_string_literal
#define gcc_jit_context_new_struct_type fn_gcc_jit_context_new_struct_type
#define gcc_jit_context_new_unary_op fn_gcc_jit_context_new_unary_op
#define gcc_jit_context_new_union_type fn_gcc_jit_context_new_union_type
#define gcc_jit_context_release fn_gcc_jit_context_release
#define gcc_jit_context_set_bool_option fn_gcc_jit_context_set_bool_option
#define gcc_jit_context_set_int_option fn_gcc_jit_context_set_int_option
#define gcc_jit_context_set_logfile fn_gcc_jit_context_set_logfile
#define gcc_jit_context_set_str_option fn_gcc_jit_context_set_str_option
#define gcc_jit_function_get_param fn_gcc_jit_function_get_param
#define gcc_jit_function_new_block fn_gcc_jit_function_new_block
#define gcc_jit_function_new_local fn_gcc_jit_function_new_local
#if defined (LIBGCCJIT_HAVE_gcc_jit_global_set_initializer)
 #define gcc_jit_global_set_initializer fn_gcc_jit_global_set_initializer
#endif
#define gcc_jit_lvalue_access_field fn_gcc_jit_lvalue_access_field
#define gcc_jit_lvalue_as_rvalue fn_gcc_jit_lvalue_as_rvalue
#define gcc_jit_lvalue_get_address fn_gcc_jit_lvalue_get_address
#define gcc_jit_param_as_lvalue fn_gcc_jit_param_as_lvalue
#define gcc_jit_param_as_rvalue fn_gcc_jit_param_as_rvalue
#define gcc_jit_rvalue_access_field fn_gcc_jit_rvalue_access_field
#define gcc_jit_rvalue_dereference fn_gcc_jit_rvalue_dereference
#define gcc_jit_rvalue_dereference_field fn_gcc_jit_rvalue_dereference_field
#define gcc_jit_rvalue_get_type fn_gcc_jit_rvalue_get_type
#define gcc_jit_struct_as_type fn_gcc_jit_struct_as_type
#define gcc_jit_struct_set_fields fn_gcc_jit_struct_set_fields
#ifdef LIBGCCJIT_HAVE_REFLECTION
# define gcc_jit_type_is_pointer fn_gcc_jit_type_is_pointer
#endif
#define gcc_jit_type_get_const fn_gcc_jit_type_get_const
#define gcc_jit_type_get_pointer fn_gcc_jit_type_get_pointer
#if defined (LIBGCCJIT_HAVE_gcc_jit_version)
 #define gcc_jit_version_major fn_gcc_jit_version_major
 #define gcc_jit_version_minor fn_gcc_jit_version_minor
 #define gcc_jit_version_patchlevel fn_gcc_jit_version_patchlevel
#endif

#endif

static bool
load_gccjit_if_necessary (bool mandatory)
{
#ifdef WINDOWSNT
  static bool tried_to_initialize_once;
  static bool gccjit_initialized;

  if (!tried_to_initialize_once)
    {
      tried_to_initialize_once = true;
      Lisp_Object status;
      gccjit_initialized = init_gccjit_functions ();
      status = gccjit_initialized ? Qt : Qnil;
      Vlibrary_cache = Fcons (Fcons (Qgccjit, status), Vlibrary_cache);
    }

  if (mandatory && !gccjit_initialized)
    xsignal1 (Qnative_compiler_error, build_string ("libgccjit not found"));

  return gccjit_initialized;
#else
  return true;
#endif
}

\f
/* Increase this number to force a new Vcomp_abi_hash to be generated.  */
#define ABI_VERSION "5"

/* Length of the hashes used for eln file naming.  */
#define HASH_LENGTH 8

/* C symbols emitted for the load relocation mechanism.  */
#define CURRENT_THREAD_RELOC_SYM "current_thread_reloc"
#define F_SYMBOLS_WITH_POS_ENABLED_RELOC_SYM "f_symbols_with_pos_enabled_reloc"
#define PURE_RELOC_SYM "pure_reloc"
#define DATA_RELOC_SYM "d_reloc"
#define DATA_RELOC_IMPURE_SYM "d_reloc_imp"
#define DATA_RELOC_EPHEMERAL_SYM "d_reloc_eph"

#define FUNC_LINK_TABLE_SYM "freloc_link_table"
#define LINK_TABLE_HASH_SYM "freloc_hash"
#define COMP_UNIT_SYM "comp_unit"
#define TEXT_DATA_RELOC_SYM "text_data_reloc"
#define TEXT_DATA_RELOC_IMPURE_SYM "text_data_reloc_imp"
#define TEXT_DATA_RELOC_EPHEMERAL_SYM "text_data_reloc_eph"

#define TEXT_OPTIM_QLY_SYM "text_optim_qly"
#define TEXT_FDOC_SYM "text_data_fdoc"

#define STR_VALUE(s) #s
#define STR(s) STR_VALUE (s)

#define FIRST(x)				\
  XCAR(x)
#define SECOND(x)				\
  XCAR (XCDR (x))
#define THIRD(x)				\
  XCAR (XCDR (XCDR (x)))

/* Like call0 but stringify and intern.  */
#define CALL0I(fun)				\
  CALLN (Ffuncall, intern_c_string (STR (fun)))

/* Like call1 but stringify and intern.  */
#define CALL1I(fun, arg)				\
  CALLN (Ffuncall, intern_c_string (STR (fun)), arg)

/* Like call2 but stringify and intern.  */
#define CALL2I(fun, arg1, arg2)				\
  CALLN (Ffuncall, intern_c_string (STR (fun)), arg1, arg2)

#define DECL_BLOCK(name, func)				\
  gcc_jit_block *(name) =				\
    gcc_jit_function_new_block ((func), STR (name))

#ifndef WINDOWSNT
# ifdef HAVE__SETJMP
#  define SETJMP _setjmp
# else
#  define SETJMP setjmp
# endif
#else
/* snippet from MINGW-64 setjmp.h */
# define SETJMP _setjmp
#endif
#define SETJMP_NAME SETJMP

/* Max number function importable by native compiled code.  */
#define F_RELOC_MAX_SIZE 1500

typedef struct {
  void *link_table[F_RELOC_MAX_SIZE];
  ptrdiff_t size;
} f_reloc_t;

static f_reloc_t freloc;

#ifndef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
# define NUM_CAST_TYPES 15
#endif

typedef struct {
  EMACS_INT len;
  gcc_jit_rvalue *r_val;
} reloc_array_t;

/* C side of the compiler context.  */

typedef struct {
  EMACS_INT speed;
  EMACS_INT debug;
  Lisp_Object compiler_options;
  Lisp_Object driver_options;
  gcc_jit_context *ctxt;
  gcc_jit_type *void_type;
  gcc_jit_type *bool_type;
  gcc_jit_type *char_type;
  gcc_jit_type *int_type;
  gcc_jit_type *unsigned_type;
  gcc_jit_type *long_type;
  gcc_jit_type *unsigned_long_type;
  gcc_jit_type *long_long_type;
  gcc_jit_type *unsigned_long_long_type;
  gcc_jit_type *emacs_int_type;
  gcc_jit_type *emacs_uint_type;
  gcc_jit_type *void_ptr_type;
  gcc_jit_type *bool_ptr_type;
  gcc_jit_type *char_ptr_type;
  gcc_jit_type *ptrdiff_type;
  gcc_jit_type *uintptr_type;
  gcc_jit_type *size_t_type;
  gcc_jit_type *lisp_word_type;
  gcc_jit_type *lisp_word_tag_type;
#ifdef LISP_OBJECT_IS_STRUCT
  gcc_jit_field *lisp_obj_i;
  gcc_jit_struct *lisp_obj_s;
#endif
  gcc_jit_type *lisp_obj_type;
  gcc_jit_type *lisp_obj_ptr_type;
  /* struct Lisp_Cons */
  gcc_jit_struct *lisp_cons_s;
  gcc_jit_field *lisp_cons_u;
  gcc_jit_field *lisp_cons_u_s;
  gcc_jit_field *lisp_cons_u_s_car;
  gcc_jit_field *lisp_cons_u_s_u;
  gcc_jit_field *lisp_cons_u_s_u_cdr;
  gcc_jit_type *lisp_cons_type;
  gcc_jit_type *lisp_cons_ptr_type;
  /* struct Lisp_Symbol_With_Position */
  gcc_jit_rvalue *f_symbols_with_pos_enabled_ref;
  gcc_jit_struct *lisp_symbol_with_position;
  gcc_jit_field *lisp_symbol_with_position_header;
  gcc_jit_field *lisp_symbol_with_position_sym;
  gcc_jit_field *lisp_symbol_with_position_pos;
  gcc_jit_type *lisp_symbol_with_position_type;
  gcc_jit_type *lisp_symbol_with_position_ptr_type;
  gcc_jit_function *get_symbol_with_position;
  gcc_jit_function *symbol_with_pos_sym;
  /* struct jmp_buf.  */
  gcc_jit_struct *jmp_buf_s;
  /* struct handler.  */
  gcc_jit_struct *handler_s;
  gcc_jit_field *handler_jmp_field;
  gcc_jit_field *handler_val_field;
  gcc_jit_field *handler_next_field;
  gcc_jit_type *handler_ptr_type;
  gcc_jit_lvalue *loc_handler;
  /* struct thread_state.  */
  gcc_jit_struct *thread_state_s;
  gcc_jit_field *m_handlerlist;
  gcc_jit_type *thread_state_ptr_type;
  gcc_jit_rvalue *current_thread_ref;
  /* Other globals.  */
  gcc_jit_rvalue *pure_ptr;
#ifndef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
  /* This version of libgccjit has really limited support for casting
     therefore this union will be used for the scope.  */
  gcc_jit_type *cast_union_type;
  gcc_jit_function *cast_functions_from_to[NUM_CAST_TYPES][NUM_CAST_TYPES];
  gcc_jit_function *cast_ptr_to_int;
  gcc_jit_function *cast_int_to_ptr;
  gcc_jit_type *cast_types[NUM_CAST_TYPES];
#endif
  gcc_jit_function *func; /* Current function being compiled.  */
  bool func_has_non_local; /* From comp-func has-non-local slot.  */
  EMACS_INT func_speed; /* From comp-func speed slot.  */
  gcc_jit_block *block;  /* Current basic block being compiled.  */
  gcc_jit_lvalue *scratch; /* Used as scratch slot for some code sequence (switch).  */
  ptrdiff_t frame_size; /* Size of the following array in elements. */
  gcc_jit_lvalue **frame; /* Frame slot n -> gcc_jit_lvalue *.  */
  gcc_jit_rvalue *zero;
  gcc_jit_rvalue *one;
  gcc_jit_rvalue *inttypebits;
  gcc_jit_rvalue *lisp_int0;
  gcc_jit_function *pseudovectorp;
  gcc_jit_function *bool_to_lisp_obj;
  gcc_jit_function *add1;
  gcc_jit_function *sub1;
  gcc_jit_function *negate;
  gcc_jit_function *car;
  gcc_jit_function *cdr;
  gcc_jit_function *setcar;
  gcc_jit_function *setcdr;
  gcc_jit_function *check_type;
  gcc_jit_function *check_impure;
  gcc_jit_function *maybe_gc_or_quit;
  Lisp_Object func_blocks_h; /* blk_name -> gcc_block.  */
  Lisp_Object exported_funcs_h; /* c-func-name -> gcc_jit_function *.  */
  Lisp_Object imported_funcs_h; /* subr_name -> gcc_jit_field *reloc_field.  */
  Lisp_Object emitter_dispatcher;
  /* Synthesized struct holding data relocs.  */
  reloc_array_t data_relocs;
  /* Same as before but can't go in pure space. */
  reloc_array_t data_relocs_impure;
  /* Same as before but content does not survive load phase. */
  reloc_array_t data_relocs_ephemeral;
  /* Global structure holding function relocations.  */
  gcc_jit_lvalue *func_relocs;
  gcc_jit_type *func_relocs_ptr_type;
  /* Pointer to this structure local to each function.  */
  gcc_jit_lvalue *func_relocs_local;
  gcc_jit_function *memcpy;
  Lisp_Object d_default_idx;
  Lisp_Object d_impure_idx;
  Lisp_Object d_ephemeral_idx;
} comp_t;

static comp_t comp;

static FILE *logfile;

/* This is used for serialized objects by the reload mechanism.  */
typedef struct {
  ptrdiff_t len;
  char data[];
} static_obj_t;

typedef struct {
  reloc_array_t array;
  gcc_jit_rvalue *idx;
} imm_reloc_t;

\f
/*
   Helper functions called by the run-time.
*/

static void helper_unwind_protect (Lisp_Object);
static Lisp_Object helper_unbind_n (Lisp_Object);
static void helper_save_restriction (void);
static bool helper_PSEUDOVECTOR_TYPEP_XUNTAG (Lisp_Object, enum pvec_type);
static struct Lisp_Symbol_With_Pos *
helper_GET_SYMBOL_WITH_POSITION (Lisp_Object);

/* Note: helper_link_table must match the list created by
   `declare_runtime_imported_funcs'.  */
static void *helper_link_table[] =
  { wrong_type_argument,
    helper_PSEUDOVECTOR_TYPEP_XUNTAG,
    pure_write_error,
    push_handler,
    record_unwind_protect_excursion,
    helper_unbind_n,
    helper_save_restriction,
    helper_GET_SYMBOL_WITH_POSITION,
    record_unwind_current_buffer,
    set_internal,
    helper_unwind_protect,
    specbind,
    maybe_gc,
    maybe_quit };

\f
static char * ATTRIBUTE_FORMAT_PRINTF (1, 2)
format_string (const char *format, ...)
{
  static char scratch_area[512];
  va_list va;
  va_start (va, format);
  int res = vsnprintf (scratch_area, sizeof (scratch_area), format, va);
  if (res >= sizeof (scratch_area))
    {
      scratch_area[sizeof (scratch_area) - 4] = '.';
      scratch_area[sizeof (scratch_area) - 3] = '.';
      scratch_area[sizeof (scratch_area) - 2] = '.';
    }
  va_end (va);
  return scratch_area;
}

static Lisp_Object
comp_hash_string (Lisp_Object string)
{
  Lisp_Object digest = make_uninit_string (MD5_DIGEST_SIZE * 2);
  md5_buffer (SSDATA (string), SCHARS (string), SSDATA (digest));
  hexbuf_digest (SSDATA (digest), SDATA (digest), MD5_DIGEST_SIZE);

  return Fsubstring (digest, Qnil, make_fixnum (HASH_LENGTH));
}

static Lisp_Object
comp_hash_source_file (Lisp_Object filename)
{
  /* Can't use Finsert_file_contents + Fbuffer_hash as this is called
     by Fcomp_el_to_eln_filename too early during bootstrap.  */
  bool is_gz = suffix_p (filename, ".gz");
#ifndef HAVE_ZLIB
  if (is_gz)
    xsignal2 (Qfile_notify_error,
	      build_string ("Cannot natively compile compressed *.el files without zlib support"),
	      filename);
#endif
  Lisp_Object encoded_filename = ENCODE_FILE (filename);
  FILE *f = emacs_fopen (SSDATA (encoded_filename), is_gz ? "rb" : "r");

  if (!f)
    report_file_error ("Opening source file", filename);

  Lisp_Object digest = make_uninit_string (MD5_DIGEST_SIZE * 2);

#ifdef HAVE_ZLIB
  int res = is_gz
    ? md5_gz_stream (f, SSDATA (digest))
    : md5_stream (f, SSDATA (digest));
#else
  int res = md5_stream (f, SSDATA (digest));
#endif
  fclose (f);

  if (res)
    xsignal2 (Qfile_notify_error, build_string ("hashing failed"), filename);

  hexbuf_digest (SSDATA (digest), SSDATA (digest), MD5_DIGEST_SIZE);

  return Fsubstring (digest, Qnil, make_fixnum (HASH_LENGTH));
}

DEFUN ("comp--subr-signature", Fcomp__subr_signature,
       Scomp__subr_signature, 1, 1, 0,
       doc: /* Support function to hash_native_abi.
For internal use.  */)
  (Lisp_Object subr)
{
  return concat2 (Fsubr_name (subr),
		  Fprin1_to_string (Fsubr_arity (subr), Qnil, Qnil));
}

/* Produce a key hashing Vcomp_subr_list.  */

void
hash_native_abi (void)
{
  /* Check runs once.  */
  eassert (NILP (Vcomp_abi_hash));

  Vcomp_abi_hash =
    comp_hash_string (
      concat3 (build_string (ABI_VERSION),
	       concat3 (Vemacs_version, Vsystem_configuration,
			Vsystem_configuration_options),
	       Fmapconcat (intern_c_string ("comp--subr-signature"),
			   Vcomp_subr_list, build_string (""))));

  Lisp_Object version = Vemacs_version;

#ifdef NS_SELF_CONTAINED
  /* MacOS self contained app bundles do not like having dots in the
     directory names under the Contents/Frameworks directory, so
     convert them to underscores.  */
  version = STRING_MULTIBYTE (Vemacs_version)
    ? make_uninit_multibyte_string (SCHARS (Vemacs_version),
				    SBYTES (Vemacs_version))
    : make_uninit_string (SBYTES (Vemacs_version));

  const unsigned char *from = SDATA (Vemacs_version);
  unsigned char *to = SDATA (version);

  while (from < SDATA (Vemacs_version) + SBYTES (Vemacs_version))
    {
      unsigned char c = *from++;

      if (c == '.')
	c = '_';

      *to++ = c;
    }
#endif

  Vcomp_native_version_dir =
    concat3 (version, build_string ("-"), Vcomp_abi_hash);
}

static void
freloc_check_fill (void)
{
  if (freloc.size)
    return;

  eassert (!NILP (Vcomp_subr_list));

  if (ARRAYELTS (helper_link_table) > F_RELOC_MAX_SIZE)
    goto overflow;
  memcpy (freloc.link_table, helper_link_table, sizeof (helper_link_table));
  freloc.size = ARRAYELTS (helper_link_table);

  Lisp_Object subr_l = Vcomp_subr_list;
  FOR_EACH_TAIL (subr_l)
    {
      if (freloc.size == F_RELOC_MAX_SIZE)
	goto overflow;
      struct Lisp_Subr *subr = XSUBR (XCAR (subr_l));
      freloc.link_table[freloc.size] = subr->function.a0;
      freloc.size++;
    }
  return;

 overflow:
  fatal ("Overflowing function relocation table, increase F_RELOC_MAX_SIZE");
}

static void
bcall0 (Lisp_Object f)
{
  Ffuncall (1, &f);
}

static gcc_jit_block *
retrive_block (Lisp_Object block_name)
{
  Lisp_Object value = Fgethash (block_name, comp.func_blocks_h, Qnil);

  if (NILP (value))
    xsignal2 (Qnative_ice, build_string ("missing basic block"), block_name);

  return (gcc_jit_block *) xmint_pointer (value);
}

static void
declare_block (Lisp_Object block_name)
{
  char *name_str = SSDATA (SYMBOL_NAME (block_name));
  gcc_jit_block *block = gcc_jit_function_new_block (comp.func, name_str);
  Lisp_Object value = make_mint_ptr (block);

  if (!NILP (Fgethash (block_name, comp.func_blocks_h, Qnil)))
    xsignal1 (Qnative_ice, build_string ("double basic block declaration"));

  Fputhash (block_name, value, comp.func_blocks_h);
}

static gcc_jit_lvalue *
emit_mvar_lval (Lisp_Object mvar)
{
  Lisp_Object mvar_slot = CALL1I (comp-mvar-slot, mvar);

  if (EQ (mvar_slot, Qscratch))
    {
      if (!comp.scratch)
	comp.scratch = gcc_jit_function_new_local (comp.func,
						   NULL,
						   comp.lisp_obj_type,
						   "scratch");
      return comp.scratch;
    }

  EMACS_INT slot_n = XFIXNUM (mvar_slot);
  eassert (slot_n < comp.frame_size);
  return comp.frame[slot_n];
}

static void
register_emitter (Lisp_Object key, void *func)
{
  Lisp_Object value = make_mint_ptr (func);
  Fputhash (key, value, comp.emitter_dispatcher);
}

static imm_reloc_t
obj_to_reloc (Lisp_Object obj)
{
  imm_reloc_t reloc;
  Lisp_Object idx;

  idx = Fgethash (obj, comp.d_default_idx, Qnil);
  if (!NILP (idx)) {
      reloc.array = comp.data_relocs;
      goto found;
  }

  idx = Fgethash (obj, comp.d_impure_idx, Qnil);
  if (!NILP (idx))
    {
      reloc.array = comp.data_relocs_impure;
      goto found;
    }

  idx = Fgethash (obj, comp.d_ephemeral_idx, Qnil);
  if (!NILP (idx))
    {
      reloc.array = comp.data_relocs_ephemeral;
      goto found;
    }

  xsignal1 (Qnative_ice,
	    build_string ("cant't find data in relocation containers"));
  assume (false);

 found:
  eassert (XFIXNUM (idx) < reloc.array.len);
  if (!FIXNUMP (idx))
    xsignal1 (Qnative_ice,
	      build_string ("inconsistent data relocation container"));
  reloc.idx = gcc_jit_context_new_rvalue_from_int (comp.ctxt,
						   comp.ptrdiff_type,
						   XFIXNUM (idx));
  return reloc;
}

static void
emit_comment (const char *str)
{
  if (comp.debug)
    gcc_jit_block_add_comment (comp.block,
			       NULL,
			       str);
}

/*
  Declare an imported function.
  When nargs is MANY (ptrdiff_t nargs, Lisp_Object *args) signature is assumed.
  When types is NULL args are assumed to be all Lisp_Objects.
*/
static gcc_jit_field *
declare_imported_func (Lisp_Object subr_sym, gcc_jit_type *ret_type,
		       int nargs, gcc_jit_type **types)
{
  USE_SAFE_ALLOCA;
  /* Don't want to declare the same function two times.  */
  if (!NILP (Fgethash (subr_sym, comp.imported_funcs_h, Qnil)))
    xsignal2 (Qnative_ice,
	      build_string ("unexpected double function declaration"),
	      subr_sym);

  if (nargs == MANY)
    {
      nargs = 2;
      types = SAFE_ALLOCA (nargs * sizeof (* types));
      types[0] = comp.ptrdiff_type;
      types[1] = comp.lisp_obj_ptr_type;
    }
  else if (nargs == UNEVALLED)
    {
      nargs = 1;
      types = SAFE_ALLOCA (nargs * sizeof (* types));
      types[0] = comp.lisp_obj_type;
    }
  else if (!types)
    {
      types = SAFE_ALLOCA (nargs * sizeof (* types));
      for (ptrdiff_t i = 0; i < nargs; i++)
	types[i] = comp.lisp_obj_type;
    }

  /* String containing the function ptr name.  */
  Lisp_Object f_ptr_name =
    CALLN (Ffuncall, intern_c_string ("comp-c-func-name"),
	   subr_sym, make_string ("R", 1));

  gcc_jit_type *f_ptr_type =
    gcc_jit_type_get_const (
      gcc_jit_context_new_function_ptr_type (comp.ctxt,
					     NULL,
					     ret_type,
					     nargs,
					     types,
					     0));
  gcc_jit_field *field =
    gcc_jit_context_new_field (comp.ctxt,
			       NULL,
			       f_ptr_type,
			       SSDATA (f_ptr_name));

  Fputhash (subr_sym, make_mint_ptr (field), comp.imported_funcs_h);
  SAFE_FREE ();
  return field;
}

/* Emit calls fetching from existing declarations.  */

static gcc_jit_rvalue *
emit_call (Lisp_Object func, gcc_jit_type *ret_type, ptrdiff_t nargs,
	   gcc_jit_rvalue **args, bool direct)
{
  Lisp_Object gcc_func =
    Fgethash (func,
	      direct ? comp.exported_funcs_h : comp.imported_funcs_h,
	      Qnil);

  if (NILP (gcc_func))
      xsignal2 (Qnative_ice,
		build_string ("missing function declaration"),
		func);

  if (direct)
    {
      emit_comment (format_string ("direct call to: %s",
				   SSDATA (func)));
      return gcc_jit_context_new_call (comp.ctxt,
				       NULL,
				       xmint_pointer (gcc_func),
				       nargs,
				       args);
    }
  else
    {
      /* Inline functions so far don't have a local variable for
	 function reloc table so we fall back to the global one.  Even
	 if this is not aesthetic calling into C from open-code is
	 always a fallback and therefore not be performance critical.
	 To fix this could think do the inline our-self without
	 relying on GCC. */
      gcc_jit_lvalue *f_ptr =
	gcc_jit_rvalue_dereference_field (
	  gcc_jit_lvalue_as_rvalue (comp.func_relocs_local
				    ? comp.func_relocs_local
				    : comp.func_relocs),
	  NULL,
	  (gcc_jit_field *) xmint_pointer (gcc_func));

      if (!f_ptr)
	xsignal2 (Qnative_ice,
		  build_string ("missing function relocation"),
		  func);
      emit_comment (format_string ("calling subr: %s",
				   SSDATA (SYMBOL_NAME (func))));
      return gcc_jit_context_new_call_through_ptr (comp.ctxt,
						   NULL,
						   gcc_jit_lvalue_as_rvalue (f_ptr),
						   nargs,
						   args);
    }
}

static gcc_jit_rvalue *
emit_call_ref (Lisp_Object func, ptrdiff_t nargs,
	       gcc_jit_lvalue *base_arg, bool direct)
{
  gcc_jit_rvalue *args[] =
    { gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.ptrdiff_type,
					   nargs),
      gcc_jit_lvalue_get_address (base_arg, NULL) };
  return emit_call (func, comp.lisp_obj_type, 2, args, direct);
}

/* Close current basic block emitting a conditional.  */

static void
emit_cond_jump (gcc_jit_rvalue *test,
		gcc_jit_block *then_target, gcc_jit_block *else_target)
{
  if (gcc_jit_rvalue_get_type (test) == comp.bool_type)
    gcc_jit_block_end_with_conditional (comp.block,
				      NULL,
				      test,
				      then_target,
				      else_target);
  else
    /* In case test is not bool we do a logical negation to obtain a bool as
       result.  */
    gcc_jit_block_end_with_conditional (
      comp.block,
      NULL,
      gcc_jit_context_new_unary_op (comp.ctxt,
				    NULL,
				    GCC_JIT_UNARY_OP_LOGICAL_NEGATE,
				    comp.bool_type,
				    test),
      else_target,
      then_target);

}

#ifndef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
static int
type_to_cast_index (gcc_jit_type * type)
{
  for (int i = 0; i < NUM_CAST_TYPES; ++i)
    if (type == comp.cast_types[i])
      return i;

  xsignal1 (Qnative_ice, build_string ("unsupported cast"));
}
#endif

static gcc_jit_rvalue *
emit_coerce (gcc_jit_type *new_type, gcc_jit_rvalue *obj)
{
  gcc_jit_type *old_type = gcc_jit_rvalue_get_type (obj);

  if (new_type == old_type)
    return obj;

#ifdef LISP_OBJECT_IS_STRUCT
  if (old_type == comp.lisp_obj_type)
    {
      gcc_jit_rvalue *lwordobj =
        gcc_jit_rvalue_access_field (obj, NULL, comp.lisp_obj_i);
      return emit_coerce (new_type, lwordobj);
    }

  if (new_type == comp.lisp_obj_type)
    {
      gcc_jit_rvalue *lwordobj =
        emit_coerce (comp.lisp_word_type, obj);

      static ptrdiff_t i;
      gcc_jit_lvalue *tmp_s =
	gcc_jit_function_new_local (comp.func, NULL, comp.lisp_obj_type,
				    format_string ("lisp_obj_%td", i++));

      gcc_jit_block_add_assignment (
	comp.block, NULL,
	gcc_jit_lvalue_access_field (tmp_s, NULL,
				     comp.lisp_obj_i),
	lwordobj);
      return gcc_jit_lvalue_as_rvalue (tmp_s);
    }
#endif

#ifdef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
  bool old_is_ptr = gcc_jit_type_is_pointer (old_type) != NULL;
  bool new_is_ptr = gcc_jit_type_is_pointer (new_type) != NULL;

  gcc_jit_rvalue *tmp = obj;

  /* `gcc_jit_context_new_bitcast` requires that the types being converted
     between have the same layout and as such, doesn't allow converting
     between an arbitrarily sized integer/boolean and a pointer. Casting it
     to a uintptr/void* is still necessary, to ensure that it can be bitcast
     into a (void *)/uintptr respectively.  */
  if (old_is_ptr != new_is_ptr)
    {
      if (old_is_ptr)
	{
	  tmp = gcc_jit_context_new_cast (comp.ctxt, NULL, tmp,
					  comp.void_ptr_type);
	  tmp = gcc_jit_context_new_bitcast (comp.ctxt, NULL, tmp,
					     comp.uintptr_type);
	}
      else
	{
	  tmp = gcc_jit_context_new_cast (comp.ctxt, NULL, tmp,
					  comp.uintptr_type);
	  tmp = gcc_jit_context_new_bitcast (comp.ctxt, NULL, tmp,
					     comp.void_ptr_type);
	}
    }
  return gcc_jit_context_new_cast (comp.ctxt, NULL, tmp, new_type);

#else /* !LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast */

  int old_index = type_to_cast_index (old_type);
  int new_index = type_to_cast_index (new_type);

  /* Lookup the appropriate cast function in the cast matrix.  */
  return gcc_jit_context_new_call (comp.ctxt,
				   NULL,
				   comp.cast_functions_from_to
				   [old_index][new_index],
				   1, &obj);
#endif
}

static gcc_jit_rvalue *
emit_binary_op (enum gcc_jit_binary_op op,
		gcc_jit_type *result_type,
		gcc_jit_rvalue *a, gcc_jit_rvalue *b)
{
  /* FIXME Check here for possible UB.  */
  return gcc_jit_context_new_binary_op (comp.ctxt, NULL,
					op,
					result_type,
					emit_coerce (result_type, a),
					emit_coerce (result_type, b));
}

/* Should come with libgccjit.  */

static gcc_jit_rvalue *
emit_rvalue_from_long_long (gcc_jit_type *type, long long n)
{
  emit_comment (format_string ("emit long long: %lld", n));

  gcc_jit_rvalue *high =
    gcc_jit_context_new_rvalue_from_long (comp.ctxt,
					  comp.unsigned_long_long_type,
					  (unsigned long long)n >> 32);
  gcc_jit_rvalue *low =
    emit_binary_op (GCC_JIT_BINARY_OP_RSHIFT,
		    comp.unsigned_long_long_type,
		    emit_binary_op (GCC_JIT_BINARY_OP_LSHIFT,
				    comp.unsigned_long_long_type,
				    gcc_jit_context_new_rvalue_from_long (
				      comp.ctxt,
				      comp.unsigned_long_long_type,
				      n),
				    gcc_jit_context_new_rvalue_from_int (
				      comp.ctxt,
				      comp.unsigned_long_long_type,
				      32)),
		    gcc_jit_context_new_rvalue_from_int (
		      comp.ctxt,
		      comp.unsigned_long_long_type,
		      32));

  return
    emit_coerce (type,
      emit_binary_op (
	GCC_JIT_BINARY_OP_BITWISE_OR,
	comp.unsigned_long_long_type,
	emit_binary_op (
	  GCC_JIT_BINARY_OP_LSHIFT,
	  comp.unsigned_long_long_type,
	  high,
	  gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					       comp.unsigned_long_long_type,
					       32)),
	low));
}

static gcc_jit_rvalue *
emit_rvalue_from_emacs_uint (EMACS_UINT val)
{
#ifdef WIDE_EMACS_INT
  if (val > ULONG_MAX)
    return emit_rvalue_from_long_long (comp.emacs_uint_type, val);
#endif
  return gcc_jit_context_new_rvalue_from_long (comp.ctxt,
					       comp.emacs_uint_type,
					       val);
}

static gcc_jit_rvalue *
emit_rvalue_from_emacs_int (EMACS_INT val)
{
  if (val > LONG_MAX || val < LONG_MIN)
    return emit_rvalue_from_long_long (comp.emacs_int_type, val);
  else
    return gcc_jit_context_new_rvalue_from_long (comp.ctxt,
						 comp.emacs_int_type, val);
}

static gcc_jit_rvalue *
emit_rvalue_from_lisp_word_tag (Lisp_Word_tag val)
{
#ifdef WIDE_EMACS_INT
  if (val > ULONG_MAX)
    return emit_rvalue_from_long_long (comp.lisp_word_tag_type, val);
#endif
  return gcc_jit_context_new_rvalue_from_long (comp.ctxt,
					       comp.lisp_word_tag_type,
					       val);
}

static gcc_jit_rvalue *
emit_rvalue_from_lisp_word (Lisp_Word val)
{
#if LISP_WORDS_ARE_POINTERS
  return gcc_jit_context_new_rvalue_from_ptr (comp.ctxt,
                                              comp.lisp_word_type,
                                              val);
#else
  if (val > LONG_MAX || val < LONG_MIN)
    return emit_rvalue_from_long_long (comp.lisp_word_type, val);
  else
    return gcc_jit_context_new_rvalue_from_long (comp.ctxt,
						 comp.lisp_word_type,
						 val);
#endif
}

static gcc_jit_rvalue *
emit_rvalue_from_lisp_obj (Lisp_Object obj)
{
#ifdef LISP_OBJECT_IS_STRUCT
  return emit_coerce (comp.lisp_obj_type,
                      emit_rvalue_from_lisp_word (obj.i));
#else
  return emit_rvalue_from_lisp_word (obj);
#endif
}

/*
   Emit the equivalent of:
   (typeof_ptr) ((uintptr) ptr + size_of_ptr_ref * i)
*/

static gcc_jit_rvalue *
emit_ptr_arithmetic (gcc_jit_rvalue *ptr, gcc_jit_type *ptr_type,
		     int size_of_ptr_ref, gcc_jit_rvalue *i)
{
  emit_comment ("ptr_arithmetic");

  gcc_jit_rvalue *offset =
    emit_binary_op (
      GCC_JIT_BINARY_OP_MULT,
      comp.uintptr_type,
      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.uintptr_type,
					   size_of_ptr_ref),
       i);

  return
    emit_coerce (
      ptr_type,
      emit_binary_op (
	GCC_JIT_BINARY_OP_PLUS,
	comp.uintptr_type,
	ptr,
	offset));
}

static gcc_jit_rvalue *
emit_XLI (gcc_jit_rvalue *obj)
{
  emit_comment ("XLI");
  return emit_coerce (comp.emacs_int_type, obj);
}

static gcc_jit_rvalue *
emit_XLP (gcc_jit_rvalue *obj)
{
  emit_comment ("XLP");

  return emit_coerce (comp.void_ptr_type, obj);
}

static gcc_jit_rvalue *
emit_XUNTAG (gcc_jit_rvalue *a, gcc_jit_type *type, Lisp_Word_tag lisp_word_tag)
{
  /* #define XUNTAG(a, type, ctype) ((ctype *)
     ((char *) XLP (a) - LISP_WORD_TAG (type))) */
  emit_comment ("XUNTAG");

  return emit_coerce (
	   gcc_jit_type_get_pointer (type),
	   emit_binary_op (
	     GCC_JIT_BINARY_OP_MINUS,
	     comp.uintptr_type,
	     emit_XLP (a),
	     emit_rvalue_from_lisp_word_tag (lisp_word_tag)));
}

static gcc_jit_rvalue *
emit_XCONS (gcc_jit_rvalue *a)
{
  emit_comment ("XCONS");

  return emit_XUNTAG (a,
		      gcc_jit_struct_as_type (comp.lisp_cons_s),
		      LISP_WORD_TAG (Lisp_Cons));
}

static gcc_jit_rvalue *
emit_BASE_EQ (gcc_jit_rvalue *x, gcc_jit_rvalue *y)
{
  emit_comment ("BASE_EQ");

  return gcc_jit_context_new_comparison (
	   comp.ctxt,
	   NULL,
	   GCC_JIT_COMPARISON_EQ,
	   emit_XLI (x),
	   emit_XLI (y));
}

static gcc_jit_rvalue *
emit_AND (gcc_jit_rvalue *x, gcc_jit_rvalue *y)
{
  return gcc_jit_context_new_binary_op (
    comp.ctxt,
    NULL,
    GCC_JIT_BINARY_OP_LOGICAL_AND,
    comp.bool_type,
    x,
    y);
}

static gcc_jit_rvalue *
emit_OR (gcc_jit_rvalue *x, gcc_jit_rvalue *y)
{
  return gcc_jit_context_new_binary_op (
    comp.ctxt,
    NULL,
    GCC_JIT_BINARY_OP_LOGICAL_OR,
    comp.bool_type,
    x,
    y);
}

static gcc_jit_rvalue *
emit_TAGGEDP (gcc_jit_rvalue *obj, Lisp_Word_tag tag)
{
   /* (! (((unsigned) (XLI (a) >> (USE_LSB_TAG ? 0 : VALBITS)) \
	- (unsigned) (tag)) \
	& ((1 << GCTYPEBITS) - 1))) */
  emit_comment ("TAGGEDP");

  gcc_jit_rvalue *sh_res =
    emit_binary_op (
      GCC_JIT_BINARY_OP_RSHIFT,
      comp.emacs_int_type,
      emit_XLI (obj),
      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.emacs_int_type,
					   (USE_LSB_TAG ? 0 : VALBITS)));

  gcc_jit_rvalue *minus_res =
    emit_binary_op (
      GCC_JIT_BINARY_OP_MINUS,
	   comp.unsigned_type,
	   sh_res,
	   gcc_jit_context_new_rvalue_from_int (
	     comp.ctxt,
	     comp.unsigned_type,
	     tag));

  gcc_jit_rvalue *res =
   gcc_jit_context_new_unary_op (
     comp.ctxt,
     NULL,
     GCC_JIT_UNARY_OP_LOGICAL_NEGATE,
     comp.int_type,
     emit_binary_op (
       GCC_JIT_BINARY_OP_BITWISE_AND,
       comp.unsigned_type,
       minus_res,
       gcc_jit_context_new_rvalue_from_int (
	 comp.ctxt,
	 comp.unsigned_type,
	 ((1 << GCTYPEBITS) - 1))));

  return res;
}

static gcc_jit_rvalue *
emit_VECTORLIKEP (gcc_jit_rvalue *obj)
{
  emit_comment ("VECTORLIKEP");

  return emit_TAGGEDP (obj, Lisp_Vectorlike);
}

static gcc_jit_rvalue *
emit_CONSP (gcc_jit_rvalue *obj)
{
  emit_comment ("CONSP");

  return emit_TAGGEDP (obj, Lisp_Cons);
}

static gcc_jit_rvalue *
emit_BARE_SYMBOL_P (gcc_jit_rvalue *obj)
{
  emit_comment ("BARE_SYMBOL_P");

  return gcc_jit_context_new_cast (comp.ctxt,
				   NULL,
				   emit_TAGGEDP (obj, Lisp_Symbol),
				   comp.bool_type);
}

static gcc_jit_rvalue *
emit_SYMBOL_WITH_POS_P (gcc_jit_rvalue *obj)
{
  emit_comment ("SYMBOL_WITH_POS_P");

  gcc_jit_rvalue *args[] =
    { obj,
      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.int_type,
					   PVEC_SYMBOL_WITH_POS)
    };

  return gcc_jit_context_new_call (comp.ctxt,
				   NULL,
				   comp.pseudovectorp,
				   2,
				   args);
}

static gcc_jit_rvalue *
emit_SYMBOL_WITH_POS_SYM (gcc_jit_rvalue *obj)
{
  emit_comment ("SYMBOL_WITH_POS_SYM");

  gcc_jit_rvalue *arg [] = { obj };
  return gcc_jit_context_new_call (comp.ctxt,
				   NULL,
				   comp.symbol_with_pos_sym,
				   1,
				   arg);
}

static gcc_jit_rvalue *
emit_EQ (gcc_jit_rvalue *x, gcc_jit_rvalue *y)
{
  return
    emit_OR (
      gcc_jit_context_new_comparison (
        comp.ctxt, NULL,
        GCC_JIT_COMPARISON_EQ,
        emit_XLI (x), emit_XLI (y)),
      emit_AND (
	gcc_jit_lvalue_as_rvalue (
	  gcc_jit_rvalue_dereference (comp.f_symbols_with_pos_enabled_ref,
				      NULL)),
        emit_OR (
          emit_AND (
            emit_SYMBOL_WITH_POS_P (x),
            emit_OR (
              emit_AND (
                emit_SYMBOL_WITH_POS_P (y),
                emit_BASE_EQ (
                  emit_XLI (emit_SYMBOL_WITH_POS_SYM (x)),
                  emit_XLI (emit_SYMBOL_WITH_POS_SYM (y)))),
              emit_AND (
                emit_BARE_SYMBOL_P (y),
                emit_BASE_EQ (
                  emit_XLI (emit_SYMBOL_WITH_POS_SYM (x)),
                  emit_XLI (y))))),
          emit_AND (
            emit_BARE_SYMBOL_P (x),
            emit_AND (
              emit_SYMBOL_WITH_POS_P (y),
              emit_BASE_EQ (
                emit_XLI (x),
                emit_XLI (emit_SYMBOL_WITH_POS_SYM (y))))))));
}

static gcc_jit_rvalue *
emit_FLOATP (gcc_jit_rvalue *obj)
{
  emit_comment ("FLOATP");

  return emit_TAGGEDP (obj, Lisp_Float);
}

static gcc_jit_rvalue *
emit_BIGNUMP (gcc_jit_rvalue *obj)
{
  /* PSEUDOVECTORP (x, PVEC_BIGNUM); */
  emit_comment ("BIGNUMP");

  gcc_jit_rvalue *args[] =
    { obj,
      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.int_type,
					   PVEC_BIGNUM) };

  return gcc_jit_context_new_call (comp.ctxt,
				   NULL,
				   comp.pseudovectorp,
				   2,
				   args);
}

static gcc_jit_rvalue *
emit_FIXNUMP (gcc_jit_rvalue *obj)
{
  /* (! (((unsigned) (XLI (x) >> (USE_LSB_TAG ? 0 : FIXNUM_BITS))
	- (unsigned) (Lisp_Int0 >> !USE_LSB_TAG))
	& ((1 << INTTYPEBITS) - 1)))  */
  emit_comment ("FIXNUMP");

  gcc_jit_rvalue *sh_res =
    USE_LSB_TAG ? obj
    : emit_binary_op (GCC_JIT_BINARY_OP_RSHIFT,
		      comp.emacs_int_type,
		      emit_XLI (obj),
		      gcc_jit_context_new_rvalue_from_int (
			comp.ctxt,
			comp.emacs_int_type,
			FIXNUM_BITS));

  gcc_jit_rvalue *minus_res =
    emit_binary_op (
      GCC_JIT_BINARY_OP_MINUS,
	   comp.unsigned_type,
	   sh_res,
	   gcc_jit_context_new_rvalue_from_int (
	     comp.ctxt,
	     comp.unsigned_type,
	     (Lisp_Int0 >> !USE_LSB_TAG)));

  gcc_jit_rvalue *res =
   gcc_jit_context_new_unary_op (
     comp.ctxt,
     NULL,
     GCC_JIT_UNARY_OP_LOGICAL_NEGATE,
     comp.int_type,
     emit_binary_op (
       GCC_JIT_BINARY_OP_BITWISE_AND,
       comp.unsigned_type,
       minus_res,
       gcc_jit_context_new_rvalue_from_int (
	 comp.ctxt,
	 comp.unsigned_type,
	 ((1 << INTTYPEBITS) - 1))));

  return res;
}

static gcc_jit_rvalue *
emit_XFIXNUM (gcc_jit_rvalue *obj)
{
  emit_comment ("XFIXNUM");
  gcc_jit_rvalue *i = emit_coerce (comp.emacs_uint_type, emit_XLI (obj));

  /* FIXME: Implementation dependent (both RSHIFT are arithmetic).  */

  if (!USE_LSB_TAG)
    {
      i = emit_binary_op (GCC_JIT_BINARY_OP_LSHIFT,
			  comp.emacs_uint_type,
			  i,
			  comp.inttypebits);

      return emit_binary_op (GCC_JIT_BINARY_OP_RSHIFT,
			     comp.emacs_int_type,
			     i,
			     comp.inttypebits);
    }
  else
    return emit_coerce (comp.emacs_int_type,
			emit_binary_op (GCC_JIT_BINARY_OP_RSHIFT,
					comp.emacs_int_type,
					i,
					comp.inttypebits));
}

static gcc_jit_rvalue *
emit_INTEGERP (gcc_jit_rvalue *obj)
{
  emit_comment ("INTEGERP");

  return emit_binary_op (GCC_JIT_BINARY_OP_LOGICAL_OR,
			 comp.bool_type,
			 emit_FIXNUMP (obj),
			 emit_BIGNUMP (obj));
}

static gcc_jit_rvalue *
emit_NUMBERP (gcc_jit_rvalue *obj)
{
  emit_comment ("NUMBERP");

  return emit_binary_op (GCC_JIT_BINARY_OP_LOGICAL_OR,
			 comp.bool_type,
			 emit_INTEGERP (obj),
			 emit_FLOATP (obj));
}

static gcc_jit_rvalue *
emit_make_fixnum_LSB_TAG (gcc_jit_rvalue *n)
{
  /*
    EMACS_UINT u = n;
    n = u << INTTYPEBITS;
    n += int0;
  */

  gcc_jit_rvalue *tmp =
    emit_binary_op (GCC_JIT_BINARY_OP_LSHIFT,
		    comp.emacs_int_type,
		    n, comp.inttypebits);

  tmp = emit_binary_op (GCC_JIT_BINARY_OP_PLUS,
			comp.emacs_int_type,
			tmp, comp.lisp_int0);

  return emit_coerce (comp.lisp_obj_type, tmp);
}

static gcc_jit_rvalue *
emit_make_fixnum_MSB_TAG (gcc_jit_rvalue *n)
{
  /*
    n &= INTMASK;
    n += (int0 << VALBITS);
    return XIL (n);
  */

  gcc_jit_rvalue *intmask = emit_rvalue_from_emacs_uint (INTMASK);

  n = emit_binary_op (GCC_JIT_BINARY_OP_BITWISE_AND,
		      comp.emacs_uint_type,
		      intmask, n);

  n =
    emit_binary_op (GCC_JIT_BINARY_OP_PLUS,
		    comp.emacs_uint_type,
		    emit_binary_op (GCC_JIT_BINARY_OP_LSHIFT,
				    comp.emacs_uint_type,
				    comp.lisp_int0,
                                    emit_rvalue_from_emacs_uint (VALBITS)),
		    n);

  return emit_coerce (comp.lisp_obj_type, n);
}


static gcc_jit_rvalue *
emit_make_fixnum (gcc_jit_rvalue *obj)
{
  emit_comment ("make_fixnum");
  return USE_LSB_TAG
    ? emit_make_fixnum_LSB_TAG (obj)
    : emit_make_fixnum_MSB_TAG (obj);
}

static gcc_jit_lvalue *
emit_lisp_obj_reloc_lval (Lisp_Object obj)
{
  emit_comment (format_string ("l-value for lisp obj: %s",
			       SSDATA (Fprin1_to_string (obj, Qnil, Qnil))));

  imm_reloc_t reloc = obj_to_reloc (obj);
  return gcc_jit_context_new_array_access (comp.ctxt,
					   NULL,
					   reloc.array.r_val,
					   reloc.idx);
}

static gcc_jit_rvalue *
emit_lisp_obj_rval (Lisp_Object obj)
{
  emit_comment (format_string ("const lisp obj: %s",
			       SSDATA (Fprin1_to_string (obj, Qnil, Qnil))));

  if (NILP (obj))
    {
      gcc_jit_rvalue *n;
      n = emit_rvalue_from_lisp_word ((Lisp_Word) iQnil);
      return emit_coerce (comp.lisp_obj_type, n);
    }

  return gcc_jit_lvalue_as_rvalue (emit_lisp_obj_reloc_lval (obj));
}

static gcc_jit_rvalue *
emit_NILP (gcc_jit_rvalue *x)
{
  emit_comment ("NILP");
  return emit_BASE_EQ (x, emit_lisp_obj_rval (Qnil));
}

static gcc_jit_rvalue *
emit_XCAR (gcc_jit_rvalue *c)
{
  emit_comment ("XCAR");

  /* XCONS (c)->u.s.car */
  return
    gcc_jit_rvalue_access_field (
      /* XCONS (c)->u.s */
      gcc_jit_rvalue_access_field (
	/* XCONS (c)->u */
	gcc_jit_lvalue_as_rvalue (
	  gcc_jit_rvalue_dereference_field (
	    emit_XCONS (c),
	    NULL,
	    comp.lisp_cons_u)),
	NULL,
	comp.lisp_cons_u_s),
      NULL,
      comp.lisp_cons_u_s_car);
}

static gcc_jit_lvalue *
emit_lval_XCAR (gcc_jit_rvalue *c)
{
  emit_comment ("lval_XCAR");

  /* XCONS (c)->u.s.car */
  return
    gcc_jit_lvalue_access_field (
      /* XCONS (c)->u.s */
      gcc_jit_lvalue_access_field (
	/* XCONS (c)->u */
	gcc_jit_rvalue_dereference_field (
	  emit_XCONS (c),
	  NULL,
	  comp.lisp_cons_u),
	NULL,
	comp.lisp_cons_u_s),
      NULL,
      comp.lisp_cons_u_s_car);
}

static gcc_jit_rvalue *
emit_XCDR (gcc_jit_rvalue *c)
{
  emit_comment ("XCDR");
  /* XCONS (c)->u.s.u.cdr */
  return
    gcc_jit_rvalue_access_field (
      /* XCONS (c)->u.s.u */
      gcc_jit_rvalue_access_field (
	/* XCONS (c)->u.s */
	gcc_jit_rvalue_access_field (
	  /* XCONS (c)->u */
	  gcc_jit_lvalue_as_rvalue (
	    gcc_jit_rvalue_dereference_field (
	      emit_XCONS (c),
	      NULL,
	      comp.lisp_cons_u)),
	  NULL,
	  comp.lisp_cons_u_s),
	NULL,
	comp.lisp_cons_u_s_u),
      NULL,
      comp.lisp_cons_u_s_u_cdr);
}

static gcc_jit_lvalue *
emit_lval_XCDR (gcc_jit_rvalue *c)
{
  emit_comment ("lval_XCDR");

  /* XCONS (c)->u.s.u.cdr */
  return
    gcc_jit_lvalue_access_field (
      /* XCONS (c)->u.s.u */
      gcc_jit_lvalue_access_field (
	/* XCONS (c)->u.s */
	gcc_jit_lvalue_access_field (
	  /* XCONS (c)->u */
	  gcc_jit_rvalue_dereference_field (
	    emit_XCONS (c),
	    NULL,
	    comp.lisp_cons_u),
	  NULL,
	  comp.lisp_cons_u_s),
	NULL,
	comp.lisp_cons_u_s_u),
      NULL,
      comp.lisp_cons_u_s_u_cdr);
}

static void
emit_CHECK_CONS (gcc_jit_rvalue *x)
{
  emit_comment ("CHECK_CONS");

  gcc_jit_rvalue *args[] =
    { emit_CONSP (x),
      emit_lisp_obj_rval (Qconsp),
      x };

  gcc_jit_block_add_eval (
    comp.block,
    NULL,
    gcc_jit_context_new_call (comp.ctxt,
			      NULL,
			      comp.check_type,
			      3,
			      args));
}

static void
emit_CHECK_SYMBOL_WITH_POS (gcc_jit_rvalue *x)
{
  emit_comment ("CHECK_SYMBOL_WITH_POS");

  gcc_jit_rvalue *args[] =
    { gcc_jit_context_new_cast (comp.ctxt,
				NULL,
				emit_SYMBOL_WITH_POS_P (x),
				comp.int_type),
      emit_lisp_obj_rval (Qsymbol_with_pos_p),
      x };

  gcc_jit_block_add_eval (
    comp.block,
    NULL,
    gcc_jit_context_new_call (comp.ctxt,
			      NULL,
			      comp.check_type,
			      3,
			      args));
}

static gcc_jit_rvalue *
emit_car_addr (gcc_jit_rvalue *c)
{
  emit_comment ("car_addr");

  return gcc_jit_lvalue_get_address (emit_lval_XCAR (c), NULL);
}

static gcc_jit_rvalue *
emit_cdr_addr (gcc_jit_rvalue *c)
{
  emit_comment ("cdr_addr");

  return gcc_jit_lvalue_get_address (emit_lval_XCDR (c), NULL);
}

static void
emit_XSETCAR (gcc_jit_rvalue *c, gcc_jit_rvalue *n)
{
  emit_comment ("XSETCAR");

  gcc_jit_block_add_assignment (
    comp.block,
    NULL,
    gcc_jit_rvalue_dereference (
      emit_car_addr (c),
      NULL),
    n);
}

static void
emit_XSETCDR (gcc_jit_rvalue *c, gcc_jit_rvalue *n)
{
  emit_comment ("XSETCDR");

  gcc_jit_block_add_assignment (
    comp.block,
    NULL,
    gcc_jit_rvalue_dereference (
      emit_cdr_addr (c),
      NULL),
    n);
}

static gcc_jit_rvalue *
emit_PURE_P (gcc_jit_rvalue *ptr)
{

  emit_comment ("PURE_P");

  return
    gcc_jit_context_new_comparison (
      comp.ctxt,
      NULL,
      GCC_JIT_COMPARISON_LE,
      emit_binary_op (
	GCC_JIT_BINARY_OP_MINUS,
	comp.uintptr_type,
	ptr,
        comp.pure_ptr),
      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.uintptr_type,
					   PURESIZE));
}

\f
/*************************************/
/* Code emitted by LIMPLE statemes.  */
/*************************************/

/* Emit an r-value from an mvar meta variable.
   In case this is a constant that was propagated return it otherwise load it
   from frame.  */

static gcc_jit_rvalue *
emit_mvar_rval (Lisp_Object mvar)
{
  Lisp_Object const_vld = CALL1I (comp-cstr-imm-vld-p, mvar);

  if (!NILP (const_vld))
    {
      Lisp_Object value = CALL1I (comp-cstr-imm, mvar);
      if (comp.debug > 1)
	{
	  Lisp_Object func =
	    Fgethash (value,
		      CALL1I (comp-ctxt-byte-func-to-func-h, Vcomp_ctxt),
		      Qnil);

	  emit_comment (
	    SSDATA (
	      Fprin1_to_string (
		NILP (func) ? value : CALL1I (comp-func-c-name, func),
		Qnil, Qnil)));
	}
      if (FIXNUMP (value))
	{
	  /* We can still emit directly objects that are self-contained in a
	     word (read fixnums).  */
          return emit_rvalue_from_lisp_obj (value);
	}
      /* Other const objects are fetched from the reloc array.  */
      return emit_lisp_obj_rval (value);
    }

  return gcc_jit_lvalue_as_rvalue (emit_mvar_lval (mvar));
}

static void
emit_frame_assignment (Lisp_Object dst_mvar, gcc_jit_rvalue *val)
{

  gcc_jit_block_add_assignment (
    comp.block,
    NULL,
    emit_mvar_lval (dst_mvar),
    val);
}

static gcc_jit_rvalue *
emit_set_internal (Lisp_Object args)
{
  /*
    Ex: (set_internal #s(comp-mvar nil nil t comp-test-up-val nil nil)
                      #s(comp-mvar 1 4 t nil symbol nil)).
  */
  /* TODO: Inline the most common case.  */
  if (list_length (args) != 3)
    xsignal2 (Qnative_ice,
	      build_string ("unexpected arg length for insns"),
	      args);

  args = XCDR (args);
  int i = 0;
  gcc_jit_rvalue *gcc_args[4];
  FOR_EACH_TAIL (args)
    gcc_args[i++] = emit_mvar_rval (XCAR (args));
  gcc_args[2] = emit_lisp_obj_rval (Qnil);
  gcc_args[3] = gcc_jit_context_new_rvalue_from_int (comp.ctxt,
						     comp.int_type,
						     SET_INTERNAL_SET);
  return emit_call (intern_c_string ("set_internal"), comp.void_type , 4,
		    gcc_args, false);
}

/* This is for a regular function with arguments as m-var.  */

static gcc_jit_rvalue *
emit_simple_limple_call (Lisp_Object args, gcc_jit_type *ret_type, bool direct)
{
  USE_SAFE_ALLOCA;
  int i = 0;
  Lisp_Object callee = FIRST (args);
  args = XCDR (args);
  ptrdiff_t nargs = list_length (args);
  gcc_jit_rvalue **gcc_args = SAFE_ALLOCA (nargs * sizeof (*gcc_args));
  FOR_EACH_TAIL (args)
    gcc_args[i++] = emit_mvar_rval (XCAR (args));

  SAFE_FREE ();
  return emit_call (callee, ret_type, nargs, gcc_args, direct);
}

static gcc_jit_rvalue *
emit_simple_limple_call_lisp_ret (Lisp_Object args)
{
  /*
    Ex: (call Fcons #s(comp-mvar 3 0 t 1 nil) #s(comp-mvar 4 nil t nil nil)).
  */
  return emit_simple_limple_call (args, comp.lisp_obj_type, false);
}

static gcc_jit_rvalue *
emit_simple_limple_call_void_ret (Lisp_Object args)
{
  return emit_simple_limple_call (args, comp.void_type, false);
}

/* Entry point to dispatch emitting (call fun ...).  */

static gcc_jit_rvalue *
emit_limple_call (Lisp_Object insn)
{
  Lisp_Object callee_sym = FIRST (insn);
  Lisp_Object emitter = Fgethash (callee_sym, comp.emitter_dispatcher, Qnil);

  if (!NILP (emitter))
    {
      gcc_jit_rvalue * (* emitter_ptr) (Lisp_Object) = xmint_pointer (emitter);
      return emitter_ptr (insn);
    }

  return emit_simple_limple_call_lisp_ret (insn);
}

static gcc_jit_rvalue *
emit_limple_call_ref (Lisp_Object insn, bool direct)
{
  /* Ex: (funcall #s(comp-mvar 1 5 t eql symbol t)
                  #s(comp-mvar 2 6 nil nil nil t)
		  #s(comp-mvar 3 7 t 0 fixnum t)).  */
  static int i = 0;
  Lisp_Object callee = FIRST (insn);
  EMACS_INT nargs = XFIXNUM (Flength (CDR (insn)));

  if (!nargs)
    return emit_call_ref (callee, 0, comp.frame[0], direct);

  if (comp.func_has_non_local || !comp.func_speed)
    {
      /* FIXME: See bug#42360.  */
      Lisp_Object first_arg = SECOND (insn);
      EMACS_INT first_slot = XFIXNUM (CALL1I (comp-mvar-slot, first_arg));
      return emit_call_ref (callee, nargs, comp.frame[first_slot], direct);
    }

  gcc_jit_lvalue *tmp_arr =
    gcc_jit_function_new_local (
      comp.func,
      NULL,
      gcc_jit_context_new_array_type (comp.ctxt,
				      NULL,
				      comp.lisp_obj_type,
				      nargs),
      format_string ("call_arr_%d", i++));

  ptrdiff_t j = 0;
  Lisp_Object arg = CDR (insn);
  FOR_EACH_TAIL (arg)
    {
      gcc_jit_block_add_assignment (
        comp.block,
	NULL,
	gcc_jit_context_new_array_access (
	  comp.ctxt,
	  NULL,
	  gcc_jit_lvalue_as_rvalue (tmp_arr),
	  gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					       comp.int_type,
					       j)),
	emit_mvar_rval (XCAR (arg)));
      ++j;
    }

  return emit_call_ref (
	   callee,
	   nargs,
	   gcc_jit_context_new_array_access (comp.ctxt,
					     NULL,
					     gcc_jit_lvalue_as_rvalue (tmp_arr),
					     comp.zero),
	   direct);
}

static gcc_jit_rvalue *
emit_setjmp (gcc_jit_rvalue *buf)
{
#ifndef WINDOWSNT
  gcc_jit_rvalue *args[] = {buf};
  gcc_jit_param *params[] =
  {
    gcc_jit_context_new_param (comp.ctxt, NULL, comp.void_ptr_type, "buf"),
  };
  /* Don't call setjmp through a function pointer (Bug#46824) */
  gcc_jit_function *f =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_IMPORTED,
				  comp.int_type, STR (SETJMP_NAME),
				  ARRAYELTS (params), params,
				  false);

  return gcc_jit_context_new_call (comp.ctxt, NULL, f, 1, args);
#else
  /* _setjmp (buf, __builtin_frame_address (0)) */
  gcc_jit_param *params[] =
  {
    gcc_jit_context_new_param (comp.ctxt, NULL, comp.void_ptr_type, "buf"),
    gcc_jit_context_new_param (comp.ctxt, NULL, comp.void_ptr_type, "frame"),
  };
  gcc_jit_rvalue *args[2];

  args[0] =
    gcc_jit_context_new_rvalue_from_int (comp.ctxt, comp.unsigned_type, 0);

  args[1] =
    gcc_jit_context_new_call (
      comp.ctxt,
      NULL,
      gcc_jit_context_get_builtin_function (comp.ctxt,
					    "__builtin_frame_address"),
      1, args);
  args[0] = buf;
  gcc_jit_function *f =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_IMPORTED,
				  comp.int_type, STR (SETJMP_NAME),
				  ARRAYELTS (params), params,
				  false);

  return gcc_jit_context_new_call (comp.ctxt, NULL, f, 2, args);
#endif
}

/* Register an handler for a non local exit.  */

static void
emit_limple_push_handler (gcc_jit_rvalue *handler, gcc_jit_rvalue *handler_type,
			  gcc_jit_block *handler_bb, gcc_jit_block *guarded_bb,
			  Lisp_Object clobbered_mvar)
{
   /* struct handler *c = push_handler (POP, type);  */

  gcc_jit_rvalue *args[] = { handler, handler_type };
  gcc_jit_block_add_assignment (
    comp.block,
    NULL,
    comp.loc_handler,
    emit_call (intern_c_string ("push_handler"),
	       comp.handler_ptr_type, 2, args, false));

  args[0] =
    gcc_jit_lvalue_get_address (
	gcc_jit_rvalue_dereference_field (
	  gcc_jit_lvalue_as_rvalue (comp.loc_handler),
	  NULL,
	  comp.handler_jmp_field),
	NULL);

  gcc_jit_rvalue *res;
  res = emit_setjmp (args[0]);
  emit_cond_jump (res, handler_bb, guarded_bb);
}

static void
emit_limple_insn (Lisp_Object insn)
{
  Lisp_Object op = XCAR (insn);
  Lisp_Object args = XCDR (insn);
  gcc_jit_rvalue *res;
  Lisp_Object arg[6];

  Lisp_Object p = XCDR (insn);
  ptrdiff_t i = 0;
  FOR_EACH_TAIL (p)
    {
      if (i == sizeof (arg) / sizeof (Lisp_Object))
	break;
      arg[i++] = XCAR (p);
    }

  if (EQ (op, Qjump))
    {
      /* Unconditional branch.  */
      gcc_jit_block *target = retrive_block (arg[0]);
      gcc_jit_block_end_with_jump (comp.block, NULL, target);
    }
  else if (EQ (op, Qcond_jump))
    {
      /* Conditional branch.  */
      gcc_jit_rvalue *a = emit_mvar_rval (arg[0]);
      gcc_jit_rvalue *b = emit_mvar_rval (arg[1]);
      gcc_jit_block *target1 = retrive_block (arg[2]);
      gcc_jit_block *target2 = retrive_block (arg[3]);

      if ((!NILP (CALL1I (comp-cstr-imm-vld-p, arg[0]))
	   && NILP (CALL1I (comp-cstr-imm, arg[0])))
	  || (!NILP (CALL1I (comp-cstr-imm-vld-p, arg[1]))
	      && NILP (CALL1I (comp-cstr-imm, arg[1]))))
	emit_cond_jump (emit_BASE_EQ (a, b), target1, target2);
      else
	emit_cond_jump (emit_EQ (a, b), target1, target2);
    }
  else if (EQ (op, Qcond_jump_narg_leq))
    {
      /*
	 Limple: (cond-jump-narg-less 2 entry_2 entry_fallback_2)
	 C: if (nargs < 2) goto entry2_fallback; else goto entry_2;
      */
      gcc_jit_lvalue *nargs =
	gcc_jit_param_as_lvalue (gcc_jit_function_get_param (comp.func, 0));
      eassert (XFIXNUM (arg[0]) < INT_MAX);
      gcc_jit_rvalue *n =
	gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					     comp.ptrdiff_type,
					     XFIXNUM (arg[0]));
      gcc_jit_block *target1 = retrive_block (arg[1]);
      gcc_jit_block *target2 = retrive_block (arg[2]);
      gcc_jit_rvalue *test = gcc_jit_context_new_comparison (
			       comp.ctxt,
			       NULL,
			       GCC_JIT_COMPARISON_LE,
			       gcc_jit_lvalue_as_rvalue (nargs),
			       n);
      emit_cond_jump (test, target1, target2);
    }
  else if (EQ (op, Qphi) || EQ (op, Qassume))
    {
      /* Nothing to do for phis or assumes in the backend.  */
    }
  else if (EQ (op, Qpush_handler))
    {
      /* (push-handler condition-case #s(comp-mvar 0 3 t (arith-error) cons nil) 1 bb_2 bb_1) */
      int h_num UNINIT;
      Lisp_Object handler_spec = arg[0];
      gcc_jit_rvalue *handler = emit_mvar_rval (arg[1]);
      if (EQ (handler_spec, Qcatcher))
	h_num = CATCHER;
      else if (EQ (handler_spec, Qcondition_case))
	h_num = CONDITION_CASE;
      else
	xsignal2 (Qnative_ice, build_string ("incoherent insn"), insn);
      gcc_jit_rvalue *handler_type =
	gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					     comp.int_type,
					     h_num);
      gcc_jit_block *handler_bb = retrive_block (arg[2]);
      gcc_jit_block *guarded_bb = retrive_block (arg[3]);
      emit_limple_push_handler (handler, handler_type, handler_bb, guarded_bb,
				arg[0]);
    }
  else if (EQ (op, Qpop_handler))
    {
      /*
	C: current_thread->m_handlerlist =
	     current_thread->m_handlerlist->next;
      */
      gcc_jit_lvalue *m_handlerlist =
	gcc_jit_rvalue_dereference_field (
	  gcc_jit_lvalue_as_rvalue (
	    gcc_jit_rvalue_dereference (comp.current_thread_ref, NULL)),
	  NULL,
	  comp.m_handlerlist);

      gcc_jit_block_add_assignment (
	comp.block,
	NULL,
	m_handlerlist,
	gcc_jit_lvalue_as_rvalue (
	  gcc_jit_rvalue_dereference_field (
	    gcc_jit_lvalue_as_rvalue (m_handlerlist),
	    NULL,
	    comp.handler_next_field)));

    }
  else if (EQ (op, Qfetch_handler))
    {
      gcc_jit_lvalue *m_handlerlist =
	gcc_jit_rvalue_dereference_field (
	  gcc_jit_lvalue_as_rvalue (
	    gcc_jit_rvalue_dereference (comp.current_thread_ref, NULL)),
	  NULL,
	  comp.m_handlerlist);
      gcc_jit_block_add_assignment (comp.block,
				    NULL,
				    comp.loc_handler,
				    gcc_jit_lvalue_as_rvalue (m_handlerlist));

      gcc_jit_block_add_assignment (
	comp.block,
	NULL,
	m_handlerlist,
	gcc_jit_lvalue_as_rvalue (
	  gcc_jit_rvalue_dereference_field (
	    gcc_jit_lvalue_as_rvalue (comp.loc_handler),
	    NULL,
	    comp.handler_next_field)));
      emit_frame_assignment (
	arg[0],
	gcc_jit_lvalue_as_rvalue (
	  gcc_jit_rvalue_dereference_field (
	    gcc_jit_lvalue_as_rvalue (comp.loc_handler),
	    NULL,
	    comp.handler_val_field)));
    }
  else if (EQ (op, Qcall))
    {
      gcc_jit_block_add_eval (comp.block, NULL,
			      emit_limple_call (args));
    }
  else if (EQ (op, Qcallref))
    {
      gcc_jit_block_add_eval (comp.block, NULL,
			      emit_limple_call_ref (args, false));
    }
  else if (EQ (op, Qdirect_call))
    {
      gcc_jit_block_add_eval (
        comp.block, NULL,
	emit_simple_limple_call (XCDR (insn), comp.lisp_obj_type, true));
    }
  else if (EQ (op, Qdirect_callref))
    {
      gcc_jit_block_add_eval (comp.block, NULL,
			      emit_limple_call_ref (XCDR (insn), true));
    }
  else if (EQ (op, Qset))
    {
      Lisp_Object arg1 = arg[1];

      if (EQ (Ftype_of (arg1), Qcomp_mvar))
	res = emit_mvar_rval (arg1);
      else if (EQ (FIRST (arg1), Qcall))
	res = emit_limple_call (XCDR (arg1));
      else if (EQ (FIRST (arg1), Qcallref))
	res = emit_limple_call_ref (XCDR (arg1), false);
      else if (EQ (FIRST (arg1), Qdirect_call))
	res = emit_simple_limple_call (XCDR (arg1), comp.lisp_obj_type, true);
      else if (EQ (FIRST (arg1), Qdirect_callref))
	res = emit_limple_call_ref (XCDR (arg1), true);
      else
	xsignal2 (Qnative_ice,
		  build_string ("LIMPLE inconsistent arg1 for insn"),
		  insn);

      if (!res)
	xsignal1 (Qnative_ice,
		  build_string (gcc_jit_context_get_first_error (comp.ctxt)));

      emit_frame_assignment (arg[0], res);
    }
  else if (EQ (op, Qset_par_to_local))
    {
      /* Ex: (set-par-to-local #s(comp-mvar 0 3 nil nil nil nil) 0).  */
      EMACS_INT param_n = XFIXNUM (arg[1]);
      eassert (param_n < INT_MAX);
      gcc_jit_rvalue *param =
	gcc_jit_param_as_rvalue (gcc_jit_function_get_param (comp.func,
							     param_n));
      emit_frame_assignment (arg[0], param);
    }
  else if (EQ (op, Qset_args_to_local))
    {
      /*
	Ex: (set-args-to-local #s(comp-mvar 1 6 nil nil nil nil))
	C: local[1] = *args;
      */
      gcc_jit_rvalue *gcc_args =
	gcc_jit_lvalue_as_rvalue (
	  gcc_jit_param_as_lvalue (gcc_jit_function_get_param (comp.func, 1)));

      gcc_jit_rvalue *res =
	gcc_jit_lvalue_as_rvalue (gcc_jit_rvalue_dereference (gcc_args, NULL));

      emit_frame_assignment (arg[0], res);
    }
  else if (EQ (op, Qset_rest_args_to_local))
    {
      /*
        Ex: (set-rest-args-to-local #s(comp-mvar 2 9 nil nil nil nil))
        C: local[2] = list (nargs - 2, args);
      */

      EMACS_INT slot_n = XFIXNUM (CALL1I (comp-mvar-slot, arg[0]));
      eassert (slot_n < INT_MAX);
      gcc_jit_rvalue *n =
	gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					     comp.ptrdiff_type,
					     slot_n);
      gcc_jit_lvalue *nargs =
	gcc_jit_param_as_lvalue (gcc_jit_function_get_param (comp.func, 0));
      gcc_jit_lvalue *args =
	gcc_jit_param_as_lvalue (gcc_jit_function_get_param (comp.func, 1));

      gcc_jit_rvalue *list_args[] =
	{ emit_binary_op (GCC_JIT_BINARY_OP_MINUS,
			  comp.ptrdiff_type,
			  gcc_jit_lvalue_as_rvalue (nargs),
			  n),
	  gcc_jit_lvalue_as_rvalue (args) };

      res = emit_call (Qlist, comp.lisp_obj_type, 2,
		       list_args, false);

      emit_frame_assignment (arg[0], res);
    }
  else if (EQ (op, Qinc_args))
    {
      /*
	Ex: (inc-args)
	C: ++args;
      */
      gcc_jit_lvalue *args =
	gcc_jit_param_as_lvalue (gcc_jit_function_get_param (comp.func, 1));

      gcc_jit_block_add_assignment (comp.block,
				    NULL,
				    args,
				    emit_ptr_arithmetic (
				      gcc_jit_lvalue_as_rvalue (args),
				      comp.lisp_obj_ptr_type,
				      sizeof (Lisp_Object),
				      comp.one));
    }
  else if (EQ (op, Qsetimm))
    {
      /* Ex: (setimm #s(comp-mvar 9 1 t 3 nil) a).  */
      emit_comment (SSDATA (Fprin1_to_string (arg[1], Qnil, Qnil)));
      imm_reloc_t reloc = obj_to_reloc (arg[1]);
      emit_frame_assignment (
	arg[0],
	gcc_jit_lvalue_as_rvalue (
	  gcc_jit_context_new_array_access (comp.ctxt,
					    NULL,
					    reloc.array.r_val,
					    reloc.idx)));
    }
  else if (EQ (op, Qcomment))
    {
      /* Ex: (comment "Function: foo").  */
      emit_comment (SSDATA (arg[0]));
    }
  else if (EQ (op, Qreturn))
    {
      gcc_jit_block_end_with_return (comp.block,
				     NULL,
				     emit_mvar_rval (arg[0]));
    }
  else if (EQ (op, Qunreachable))
    {
      /* Libgccjit has no __builtin_unreachable.  */
      gcc_jit_block_end_with_return (comp.block,
				     NULL,
				     emit_lisp_obj_rval (Qnil));
    }
  else
    {
      xsignal2 (Qnative_ice,
		build_string ("LIMPLE op inconsistent"),
		op);
    }
}

\f
/**************/
/* Inliners.  */
/**************/

static gcc_jit_rvalue *
emit_call_with_type_hint (gcc_jit_function *func, Lisp_Object insn,
			  Lisp_Object type)
{
  bool hint_match =
    !NILP (CALL2I (comp-mvar-type-hint-match-p, SECOND (insn), type));
  gcc_jit_rvalue *args[] =
    { emit_mvar_rval (SECOND (insn)),
      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.bool_type,
					   hint_match) };

  return gcc_jit_context_new_call (comp.ctxt, NULL, func, 2, args);
}

/* Same as before but with two args. The type hint is on the 2th.  */
static gcc_jit_rvalue *
emit_call2_with_type_hint (gcc_jit_function *func, Lisp_Object insn,
			   Lisp_Object type)
{
  bool hint_match =
    !NILP (CALL2I (comp-mvar-type-hint-match-p, SECOND (insn), type));
  gcc_jit_rvalue *args[] =
    { emit_mvar_rval (SECOND (insn)),
      emit_mvar_rval (THIRD (insn)),
      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					   comp.bool_type,
					   hint_match) };

  return gcc_jit_context_new_call (comp.ctxt, NULL, func, 3, args);
}


static gcc_jit_rvalue *
emit_add1 (Lisp_Object insn)
{
  return emit_call_with_type_hint (comp.add1, insn, Qfixnum);
}

static gcc_jit_rvalue *
emit_sub1 (Lisp_Object insn)
{
  return emit_call_with_type_hint (comp.sub1, insn, Qfixnum);
}

static gcc_jit_rvalue *
emit_negate (Lisp_Object insn)
{
  return emit_call_with_type_hint (comp.negate, insn, Qfixnum);
}

static gcc_jit_rvalue *
emit_consp (Lisp_Object insn)
{
  gcc_jit_rvalue *x = emit_mvar_rval (SECOND (insn));
  gcc_jit_rvalue *res = emit_coerce (comp.bool_type,
				   emit_CONSP (x));
  return gcc_jit_context_new_call (comp.ctxt,
				   NULL,
				   comp.bool_to_lisp_obj,
				   1, &res);
}

static gcc_jit_rvalue *
emit_car (Lisp_Object insn)
{
  return emit_call_with_type_hint (comp.car, insn, Qcons);
}

static gcc_jit_rvalue *
emit_cdr (Lisp_Object insn)
{
  return emit_call_with_type_hint (comp.cdr, insn, Qcons);
}

static gcc_jit_rvalue *
emit_setcar (Lisp_Object insn)
{
  return emit_call2_with_type_hint (comp.setcar, insn, Qcons);
}

static gcc_jit_rvalue *
emit_setcdr (Lisp_Object insn)
{
  return emit_call2_with_type_hint (comp.setcdr, insn, Qcons);
}

static gcc_jit_rvalue *
emit_numperp (Lisp_Object insn)
{
  gcc_jit_rvalue *x = emit_mvar_rval (SECOND (insn));
  gcc_jit_rvalue *res = emit_NUMBERP (x);
  return gcc_jit_context_new_call (comp.ctxt, NULL, comp.bool_to_lisp_obj, 1,
				   &res);
}

static gcc_jit_rvalue *
emit_integerp (Lisp_Object insn)
{
  gcc_jit_rvalue *x = emit_mvar_rval (SECOND (insn));
  gcc_jit_rvalue *res = emit_INTEGERP (x);
  return gcc_jit_context_new_call (comp.ctxt, NULL, comp.bool_to_lisp_obj, 1,
				   &res);
}

static gcc_jit_rvalue *
emit_maybe_gc_or_quit (Lisp_Object insn)
{
  return gcc_jit_context_new_call (comp.ctxt, NULL, comp.maybe_gc_or_quit, 0,
				   NULL);
}

/* This is in charge of serializing an object and export a function to
   retrieve it at load time.  */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress"
static void
emit_static_object (const char *name, Lisp_Object obj)
{
  /* libgccjit has no support for initialized static data.
     The mechanism below is certainly not aesthetic but I assume the bottle neck
     in terms of performance at load time will still be the reader.
     NOTE: we can not rely on libgccjit even for valid NULL terminated C
     strings cause of this funny bug that will affect all pre gcc10 era gccs:
     https://gcc.gnu.org/ml/jit/2019-q3/msg00013.html  */

  specpdl_ref count = SPECPDL_INDEX ();
  /* Preserve uninterned symbols, this is specifically necessary for
     CL macro expansion in dynamic scope code (bug#42088).  See
     `byte-compile-output-file-form'.  */
  specbind (intern_c_string ("print-escape-newlines"), Qt);
  specbind (intern_c_string ("print-length"), Qnil);
  specbind (intern_c_string ("print-level"), Qnil);
  specbind (intern_c_string ("print-quoted"), Qt);
  specbind (intern_c_string ("print-gensym"), Qt);
  specbind (intern_c_string ("print-circle"), Qt);
  Lisp_Object str = Fprin1_to_string (obj, Qnil, Qnil);
  unbind_to (count, Qnil);

  ptrdiff_t len = SBYTES (str);
  const char *p = SSDATA (str);

#if defined (LIBGCCJIT_HAVE_gcc_jit_global_set_initializer)
  if (gcc_jit_global_set_initializer)
    {
      ptrdiff_t str_size = len + 1;
      ptrdiff_t size = sizeof (static_obj_t) + str_size;
      static_obj_t *static_obj = xmalloc (size);
      static_obj->len = str_size;
      memcpy (static_obj->data, p, str_size);
      gcc_jit_lvalue *blob =
	gcc_jit_context_new_global (
	  comp.ctxt,
	  NULL,
	  GCC_JIT_GLOBAL_EXPORTED,
	  gcc_jit_context_new_array_type (comp.ctxt, NULL,
					  comp.char_type,
					  size),
	  format_string ("%s_blob", name));
      gcc_jit_global_set_initializer (blob, static_obj, size);
      xfree (static_obj);

      return;
    }
#endif

  gcc_jit_type *a_type =
    gcc_jit_context_new_array_type (comp.ctxt,
				    NULL,
				    comp.char_type,
				    len + 1);
  gcc_jit_field *fields[] =
    { gcc_jit_context_new_field (comp.ctxt,
				 NULL,
				 comp.ptrdiff_type,
				 "len"),
      gcc_jit_context_new_field (comp.ctxt,
				 NULL,
				 a_type,
				 "data") };

  gcc_jit_type *data_struct_t =
    gcc_jit_struct_as_type (
      gcc_jit_context_new_struct_type (comp.ctxt,
				       NULL,
				       format_string ("%s_struct", name),
				       ARRAYELTS (fields), fields));

  gcc_jit_lvalue *data_struct =
    gcc_jit_context_new_global (comp.ctxt,
				NULL,
				GCC_JIT_GLOBAL_INTERNAL,
				data_struct_t,
				format_string ("%s_s", name));

  gcc_jit_function *f =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_EXPORTED,
				  gcc_jit_type_get_pointer (data_struct_t),
				  name,
				  0, NULL, 0);
  DECL_BLOCK (block, f);

  if (comp.debug > 1)
    {
      char *comment = memcpy (xmalloc (len), p, len);
      for (ptrdiff_t i = 0; i < len - 1; i++)
	if (!comment[i])
	  comment[i] = '\n';
      gcc_jit_block_add_comment (block, NULL, comment);
      xfree (comment);
    }

  gcc_jit_lvalue *arr =
      gcc_jit_lvalue_access_field (data_struct, NULL, fields[1]);

  gcc_jit_lvalue *ptrvar = gcc_jit_function_new_local (f, NULL,
                                                       comp.char_ptr_type,
                                                       "ptr");

  gcc_jit_block_add_assignment (
    block,
    NULL,
    ptrvar,
    gcc_jit_lvalue_get_address (
      gcc_jit_context_new_array_access (
        comp.ctxt,
        NULL,
        gcc_jit_lvalue_as_rvalue (arr),
        gcc_jit_context_new_rvalue_from_int (comp.ctxt, comp.int_type, 0)),
      NULL));

  /* We can't use always string literals longer that 200 bytes because
     they cause a crash in pre GCC 10 libgccjit.
     <https://gcc.gnu.org/ml/jit/2019-q3/msg00013.html>.

     Adjust if possible to reduce the number of function calls.  */
  size_t chunck_size = NILP (Fcomp_libgccjit_version ()) ? 200 : 1024;
  char *buff = xmalloc (chunck_size);
  for (ptrdiff_t i = 0; i < len;)
    {
      strncpy (buff, p, chunck_size);
      buff[chunck_size - 1] = 0;
      uintptr_t l = strlen (buff);

      if (l != 0)
        {
          p += l;
          i += l;

          gcc_jit_rvalue *args[] =
	    { gcc_jit_lvalue_as_rvalue (ptrvar),
	      gcc_jit_context_new_string_literal (comp.ctxt, buff),
	      gcc_jit_context_new_rvalue_from_int (comp.ctxt,
						   comp.size_t_type,
						   l) };

          gcc_jit_block_add_eval (block, NULL,
                                  gcc_jit_context_new_call (comp.ctxt, NULL,
                                                            comp.memcpy,
                                                            ARRAYELTS (args),
							    args));
          gcc_jit_block_add_assignment (block, NULL, ptrvar,
            gcc_jit_lvalue_get_address (
              gcc_jit_context_new_array_access (comp.ctxt, NULL,
                gcc_jit_lvalue_as_rvalue (ptrvar),
                gcc_jit_context_new_rvalue_from_int (comp.ctxt,
                                                     comp.uintptr_type,
                                                     l)),
              NULL));
        }
      else
        {
          /* If strlen returned 0 that means that the static object
             contains a NULL byte.  In that case just move over to the
             next block.  We can rely on the byte being zero because
             of the previous call to bzero and because the dynamic
             linker cleared it.  */
          p++;
          i++;
          gcc_jit_block_add_assignment (
            block, NULL, ptrvar,
            gcc_jit_lvalue_get_address (
              gcc_jit_context_new_array_access (
                comp.ctxt, NULL, gcc_jit_lvalue_as_rvalue (ptrvar),
                gcc_jit_context_new_rvalue_from_int (comp.ctxt,
                                                     comp.uintptr_type, 1)),
              NULL));
        }
    }
  xfree (buff);

  gcc_jit_block_add_assignment (
	block,
	NULL,
	gcc_jit_lvalue_access_field (data_struct, NULL, fields[0]),
	gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					     comp.ptrdiff_type,
					     len));
  gcc_jit_rvalue *res = gcc_jit_lvalue_get_address (data_struct, NULL);
  gcc_jit_block_end_with_return (block, NULL, res);
}
#pragma GCC diagnostic pop

static reloc_array_t
declare_imported_data_relocs (Lisp_Object container, const char *code_symbol,
			      const char *text_symbol)
{
  /* Imported objects.  */
  reloc_array_t res;
  res.len =
    XFIXNUM (CALL1I (hash-table-count,
		     CALL1I (comp-data-container-idx, container)));
  Lisp_Object d_reloc = CALL1I (comp-data-container-l, container);
  d_reloc = Fvconcat (1, &d_reloc);

  res.r_val =
    gcc_jit_lvalue_as_rvalue (
      gcc_jit_context_new_global (
	comp.ctxt,
	NULL,
	GCC_JIT_GLOBAL_EXPORTED,
	gcc_jit_context_new_array_type (comp.ctxt,
					NULL,
					comp.lisp_obj_type,
					res.len),
	code_symbol));

  emit_static_object (text_symbol, d_reloc);

  return res;
}

static void
declare_imported_data (void)
{
  /* Imported objects.  */
  comp.data_relocs =
    declare_imported_data_relocs (CALL1I (comp-ctxt-d-default, Vcomp_ctxt),
				  DATA_RELOC_SYM,
				  TEXT_DATA_RELOC_SYM);
  comp.data_relocs_impure =
    declare_imported_data_relocs (CALL1I (comp-ctxt-d-impure, Vcomp_ctxt),
				  DATA_RELOC_IMPURE_SYM,
				  TEXT_DATA_RELOC_IMPURE_SYM);
  comp.data_relocs_ephemeral =
    declare_imported_data_relocs (CALL1I (comp-ctxt-d-ephemeral, Vcomp_ctxt),
				  DATA_RELOC_EPHEMERAL_SYM,
				  TEXT_DATA_RELOC_EPHEMERAL_SYM);
}

/*
  Declare as imported all the functions that are requested from the runtime.
  These are either subrs or not.  Note that the list created here must match
  the array `helper_link_table'.
*/
static Lisp_Object
declare_runtime_imported_funcs (void)
{
  Lisp_Object field_list = Qnil;

#define ADD_IMPORTED(f_name, ret_type, nargs, args)			       \
  do {									       \
    Lisp_Object name = intern_c_string (STR (f_name));			       \
    Lisp_Object field =							       \
      make_mint_ptr (declare_imported_func (name, ret_type, nargs, args));     \
    Lisp_Object el = Fcons (name, field);				       \
    field_list = Fcons (el, field_list);				       \
  } while (0)

  gcc_jit_type *args[4];

  ADD_IMPORTED (wrong_type_argument, comp.void_type, 2, NULL);

  args[0] = comp.lisp_obj_type;
  args[1] = comp.int_type;
  ADD_IMPORTED (helper_PSEUDOVECTOR_TYPEP_XUNTAG, comp.bool_type, 2, args);

  ADD_IMPORTED (pure_write_error, comp.void_type, 1, NULL);

  args[0] = comp.lisp_obj_type;
  args[1] = comp.int_type;
  ADD_IMPORTED (push_handler, comp.handler_ptr_type, 2, args);

  ADD_IMPORTED (record_unwind_protect_excursion, comp.void_type, 0, NULL);

  args[0] = comp.lisp_obj_type;
  ADD_IMPORTED (helper_unbind_n, comp.lisp_obj_type, 1, args);

  ADD_IMPORTED (helper_save_restriction, comp.void_type, 0, NULL);

  args[0] = comp.lisp_obj_type;
  ADD_IMPORTED (helper_GET_SYMBOL_WITH_POSITION, comp.lisp_symbol_with_position_ptr_type,
		1, args);

  ADD_IMPORTED (record_unwind_current_buffer, comp.void_type, 0, NULL);

  args[0] = args[1] = args[2] = comp.lisp_obj_type;
  args[3] = comp.int_type;
  ADD_IMPORTED (set_internal, comp.void_type, 4, args);

  args[0] = comp.lisp_obj_type;
  ADD_IMPORTED (helper_unwind_protect, comp.void_type, 1, args);

  args[0] = args[1] = comp.lisp_obj_type;
  ADD_IMPORTED (specbind, comp.void_type, 2, args);

  ADD_IMPORTED (maybe_gc, comp.void_type, 0, NULL);

  ADD_IMPORTED (maybe_quit, comp.void_type, 0, NULL);

#undef ADD_IMPORTED

  return Freverse (field_list);
}

/*
  This emit the code needed by every compilation unit to be loaded.
*/
static void
emit_ctxt_code (void)
{
  /* Emit optimize qualities.  */
  Lisp_Object opt_qly[] =
    { Fcons (Qnative_comp_speed, make_fixnum (comp.speed)),
      Fcons (Qnative_comp_debug, make_fixnum (comp.debug)),
      Fcons (Qgccjit,
	     Fcomp_libgccjit_version ()) };
  emit_static_object (TEXT_OPTIM_QLY_SYM, Flist (ARRAYELTS (opt_qly), opt_qly));

  emit_static_object (TEXT_FDOC_SYM,
		      CALL1I (comp-ctxt-function-docs, Vcomp_ctxt));

  comp.current_thread_ref =
    gcc_jit_lvalue_as_rvalue (
      gcc_jit_context_new_global (
	comp.ctxt,
	NULL,
	GCC_JIT_GLOBAL_EXPORTED,
	gcc_jit_type_get_pointer (comp.thread_state_ptr_type),
	CURRENT_THREAD_RELOC_SYM));

  comp.f_symbols_with_pos_enabled_ref =
    gcc_jit_lvalue_as_rvalue (
      gcc_jit_context_new_global (
	comp.ctxt,
	NULL,
	GCC_JIT_GLOBAL_EXPORTED,
	comp.bool_ptr_type,
	F_SYMBOLS_WITH_POS_ENABLED_RELOC_SYM));

  comp.pure_ptr =
    gcc_jit_lvalue_as_rvalue (
      gcc_jit_context_new_global (
	comp.ctxt,
	NULL,
	GCC_JIT_GLOBAL_EXPORTED,
        comp.void_ptr_type,
	PURE_RELOC_SYM));

  gcc_jit_context_new_global (
	comp.ctxt,
	NULL,
	GCC_JIT_GLOBAL_EXPORTED,
	comp.lisp_obj_type,
	COMP_UNIT_SYM);

  declare_imported_data ();

  /* Functions imported from Lisp code.	 */
  freloc_check_fill ();
  gcc_jit_field **fields = xmalloc (freloc.size * sizeof (*fields));
  ptrdiff_t n_frelocs = 0;
  Lisp_Object f_runtime = declare_runtime_imported_funcs ();
  FOR_EACH_TAIL (f_runtime)
    {
      Lisp_Object el = XCAR (f_runtime);
      eassert (n_frelocs < freloc.size);
      fields[n_frelocs++] = xmint_pointer (XCDR (el));
    }

  /* Sign the .eln for the exposed ABI it expects at load.  */
  eassert (!NILP (Vcomp_abi_hash));
  emit_static_object (LINK_TABLE_HASH_SYM, Vcomp_abi_hash);

  Lisp_Object subr_l = Vcomp_subr_list;
  FOR_EACH_TAIL (subr_l)
    {
      struct Lisp_Subr *subr = XSUBR (XCAR (subr_l));
      Lisp_Object subr_sym = intern_c_string (subr->symbol_name);
      eassert (n_frelocs < freloc.size);
      fields[n_frelocs++] = declare_imported_func (subr_sym, comp.lisp_obj_type,
						   subr->max_args, NULL);
    }

  gcc_jit_struct *f_reloc_struct =
    gcc_jit_context_new_struct_type (comp.ctxt,
				     NULL,
				     "freloc_link_table",
				     n_frelocs, fields);
  comp.func_relocs_ptr_type =
    gcc_jit_type_get_pointer (
      gcc_jit_struct_as_type (f_reloc_struct));

  comp.func_relocs =
    gcc_jit_context_new_global (comp.ctxt,
				NULL,
				GCC_JIT_GLOBAL_EXPORTED,
				comp.func_relocs_ptr_type,
				FUNC_LINK_TABLE_SYM);

  xfree (fields);
}

\f
/****************************************************************/
/* Inline function definition and lisp data structure follows.  */
/****************************************************************/

/* struct Lisp_Cons definition.  */

static void
define_lisp_cons (void)
{
  /*
    union cdr_u
    {
      Lisp_Object cdr;
      struct Lisp_Cons *chain;
    };

    struct cons_s
    {
      Lisp_Object car;
      union cdr_u u;
    };

    union cons_u
    {
      struct cons_s s;
      char align_pad[sizeof (struct Lisp_Cons)];
    };

    struct Lisp_Cons
    {
      union cons_u u;
    };
  */

  comp.lisp_cons_s =
    gcc_jit_context_new_opaque_struct (comp.ctxt,
				       NULL,
				       "comp_Lisp_Cons");
  comp.lisp_cons_type =
    gcc_jit_struct_as_type (comp.lisp_cons_s);
  comp.lisp_cons_ptr_type =
    gcc_jit_type_get_pointer (comp.lisp_cons_type);

  comp.lisp_cons_u_s_u_cdr =
    gcc_jit_context_new_field (comp.ctxt,
			       NULL,
			       comp.lisp_obj_type,
			       "cdr");

  gcc_jit_field *cdr_u_fields[] =
    { comp.lisp_cons_u_s_u_cdr,
      gcc_jit_context_new_field (comp.ctxt,
				 NULL,
				 comp.lisp_cons_ptr_type,
				 "chain") };

  gcc_jit_type *cdr_u =
    gcc_jit_context_new_union_type (comp.ctxt,
				    NULL,
				    "comp_cdr_u",
				    ARRAYELTS (cdr_u_fields),
				    cdr_u_fields);

  comp.lisp_cons_u_s_car = gcc_jit_context_new_field (comp.ctxt,
					    NULL,
					    comp.lisp_obj_type,
					    "car");
  comp.lisp_cons_u_s_u = gcc_jit_context_new_field (comp.ctxt,
						    NULL,
						    cdr_u,
						    "u");
  gcc_jit_field *cons_s_fields[] =
    { comp.lisp_cons_u_s_car,
      comp.lisp_cons_u_s_u };

  gcc_jit_struct *cons_s =
    gcc_jit_context_new_struct_type (comp.ctxt,
				     NULL,
				     "comp_cons_s",
				     ARRAYELTS (cons_s_fields),
				     cons_s_fields);

  comp.lisp_cons_u_s = gcc_jit_context_new_field (comp.ctxt,
				 NULL,
				 gcc_jit_struct_as_type (cons_s),
				 "s");

  gcc_jit_field *cons_u_fields[] =
    { comp.lisp_cons_u_s,
      gcc_jit_context_new_field (
	comp.ctxt,
	NULL,
	gcc_jit_context_new_array_type (comp.ctxt,
					NULL,
					comp.char_type,
					sizeof (struct Lisp_Cons)),
	"align_pad") };

  gcc_jit_type *lisp_cons_u_type =
    gcc_jit_context_new_union_type (comp.ctxt,
				    NULL,
				    "comp_cons_u",
				    ARRAYELTS (cons_u_fields),
				    cons_u_fields);

  comp.lisp_cons_u =
    gcc_jit_context_new_field (comp.ctxt,
			       NULL,
			       lisp_cons_u_type,
			       "u");
  gcc_jit_struct_set_fields (comp.lisp_cons_s,
			     NULL, 1, &comp.lisp_cons_u);

}

static void
define_lisp_symbol_with_position (void)
{
  comp.lisp_symbol_with_position_header =
    gcc_jit_context_new_field (comp.ctxt,
			       NULL,
			       comp.ptrdiff_type,
			       "header");
  comp.lisp_symbol_with_position_sym =
    gcc_jit_context_new_field (comp.ctxt,
			       NULL,
			       comp.lisp_obj_type,
			       "sym");
  comp.lisp_symbol_with_position_pos =
    gcc_jit_context_new_field (comp.ctxt,
			       NULL,
			       comp.lisp_obj_type,
			       "pos");
  gcc_jit_field *fields [3] = {comp.lisp_symbol_with_position_header,
			       comp.lisp_symbol_with_position_sym,
			       comp.lisp_symbol_with_position_pos};
  comp.lisp_symbol_with_position =
    gcc_jit_context_new_struct_type (comp.ctxt,
				     NULL,
				     "comp_lisp_symbol_with_position",
				     3,
				     fields);
  comp.lisp_symbol_with_position_type =
    gcc_jit_struct_as_type (comp.lisp_symbol_with_position);
  comp.lisp_symbol_with_position_ptr_type =
    gcc_jit_type_get_pointer (comp.lisp_symbol_with_position_type);
}

/* Opaque jmp_buf definition.  */

static void
define_jmp_buf (void)
{
  gcc_jit_field *field =
    gcc_jit_context_new_field (
      comp.ctxt,
      NULL,
      gcc_jit_context_new_array_type (comp.ctxt,
				      NULL,
				      comp.char_type,
				      sizeof (sys_jmp_buf)),
      "stuff");
  comp.jmp_buf_s =
    gcc_jit_context_new_struct_type (comp.ctxt,
				     NULL,
				     "comp_jmp_buf",
				     1, &field);
}

static void
define_memcpy (void)
{

  gcc_jit_param *params[] =
    { gcc_jit_context_new_param (comp.ctxt, NULL, comp.void_ptr_type, "dest"),
      gcc_jit_context_new_param (comp.ctxt, NULL, comp.void_ptr_type, "src"),
      gcc_jit_context_new_param (comp.ctxt, NULL, comp.size_t_type, "n") };

  comp.memcpy =
    gcc_jit_context_new_function (comp.ctxt, NULL, GCC_JIT_FUNCTION_IMPORTED,
				  comp.void_ptr_type, "memcpy",
				  ARRAYELTS (params), params, false);
}

/* struct handler definition  */

static void
define_handler_struct (void)
{
  comp.handler_s =
    gcc_jit_context_new_opaque_struct (comp.ctxt, NULL, "comp_handler");
  comp.handler_ptr_type =
    gcc_jit_type_get_pointer (gcc_jit_struct_as_type (comp.handler_s));

  comp.handler_jmp_field = gcc_jit_context_new_field (comp.ctxt,
						      NULL,
						      gcc_jit_struct_as_type (
							comp.jmp_buf_s),
						      "jmp");
  comp.handler_val_field = gcc_jit_context_new_field (comp.ctxt,
						      NULL,
						      comp.lisp_obj_type,
						      "val");
  comp.handler_next_field = gcc_jit_context_new_field (comp.ctxt,
						       NULL,
						       comp.handler_ptr_type,
						       "next");
  gcc_jit_field *fields[] =
    { gcc_jit_context_new_field (
	comp.ctxt,
	NULL,
	gcc_jit_context_new_array_type (comp.ctxt,
					NULL,
					comp.char_type,
					offsetof (struct handler, val)),
	"pad0"),
      comp.handler_val_field,
      comp.handler_next_field,
      gcc_jit_context_new_field (
	comp.ctxt,
	NULL,
	gcc_jit_context_new_array_type (comp.ctxt,
					NULL,
					comp.char_type,
					offsetof (struct handler, jmp)
					- offsetof (struct handler, next)
					- sizeof (((struct handler *) 0)->next)),
	"pad1"),
      comp.handler_jmp_field,
      gcc_jit_context_new_field (
	comp.ctxt,
	NULL,
	gcc_jit_context_new_array_type (comp.ctxt,
					NULL,
					comp.char_type,
					sizeof (struct handler)
					- offsetof (struct handler, jmp)
					- sizeof (((struct handler *) 0)->jmp)),
	"pad2") };
  gcc_jit_struct_set_fields (comp.handler_s,
			     NULL,
			     ARRAYELTS (fields),
			     fields);

}

static void
define_thread_state_struct (void)
{
  /* Partially opaque definition for `thread_state'.
     Because we need to access just m_handlerlist hopefully this is requires
     less manutention then the full deifnition.	 */

  comp.m_handlerlist = gcc_jit_context_new_field (comp.ctxt,
						  NULL,
						  comp.handler_ptr_type,
						  "m_handlerlist");
  gcc_jit_field *fields[] =
    { gcc_jit_context_new_field (
	comp.ctxt,
	NULL,
	gcc_jit_context_new_array_type (comp.ctxt,
					NULL,
					comp.char_type,
					offsetof (struct thread_state,
						  m_handlerlist)),
	"pad0"),
      comp.m_handlerlist,
      gcc_jit_context_new_field (
	comp.ctxt,
	NULL,
	gcc_jit_context_new_array_type (
	  comp.ctxt,
	  NULL,
	  comp.char_type,
	  sizeof (struct thread_state)
	  - offsetof (struct thread_state,
		      m_handlerlist)
	  - sizeof (((struct thread_state *) 0)->m_handlerlist)),
	"pad1") };

  comp.thread_state_s =
    gcc_jit_context_new_struct_type (comp.ctxt,
				     NULL,
				     "comp_thread_state",
				     ARRAYELTS (fields),
				     fields);
  comp.thread_state_ptr_type =
    gcc_jit_type_get_pointer (gcc_jit_struct_as_type (comp.thread_state_s));
}

#ifndef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
static gcc_jit_function *
define_type_punning (const char *name,
		     gcc_jit_type *from, gcc_jit_field *from_field,
		     gcc_jit_type *to, gcc_jit_field *to_field)
{
  gcc_jit_param *param = gcc_jit_context_new_param (comp.ctxt, NULL,
                                                    from, "arg");
  gcc_jit_function *result = gcc_jit_context_new_function (comp.ctxt,
                               NULL,
                               GCC_JIT_FUNCTION_INTERNAL,
                               to,
                               name,
                               1,
                               &param,
                               0);

  DECL_BLOCK (entry_block, result);

  gcc_jit_lvalue *tmp_union
    = gcc_jit_function_new_local (result,
                                  NULL,
                                  comp.cast_union_type,
                                  "union_cast");

  gcc_jit_block_add_assignment (entry_block, NULL,
                                gcc_jit_lvalue_access_field (tmp_union, NULL,
							     from_field),
                                gcc_jit_param_as_rvalue (param));

  gcc_jit_block_end_with_return (entry_block,
                                 NULL,
                                 gcc_jit_rvalue_access_field (
                                   gcc_jit_lvalue_as_rvalue (tmp_union),
                                   NULL, to_field));

  return result;
}

struct cast_type
{
  gcc_jit_type *type;
  const char *name;
  bool is_ptr;
};

static gcc_jit_function *
define_cast_from_to (struct cast_type from, struct cast_type to)
{
  char *name = format_string ("cast_from_%s_to_%s", from.name, to.name);
  gcc_jit_param *param = gcc_jit_context_new_param (comp.ctxt, NULL,
						    from.type, "arg");
  gcc_jit_function *result
    = gcc_jit_context_new_function (comp.ctxt,
				    NULL,
				    GCC_JIT_FUNCTION_INTERNAL,
				    to.type, name,
				    1, &param, 0);
  DECL_BLOCK (entry_block, result);

  gcc_jit_rvalue *tmp = gcc_jit_param_as_rvalue (param);
  if (from.is_ptr != to.is_ptr)
    {
      if (from.is_ptr)
	{
	  tmp = gcc_jit_context_new_cast (comp.ctxt, NULL,
					  tmp, comp.void_ptr_type);
	  tmp = gcc_jit_context_new_call (comp.ctxt, NULL,
					  comp.cast_ptr_to_int, 1, &tmp);
	}
      else
	{
	  tmp = gcc_jit_context_new_cast (comp.ctxt, NULL,
					  tmp, comp.uintptr_type);
	  tmp = gcc_jit_context_new_call (comp.ctxt, NULL,
					  comp.cast_int_to_ptr, 1, &tmp);
	}
    }

  tmp = gcc_jit_context_new_cast (comp.ctxt, NULL, tmp, to.type);

  gcc_jit_block_end_with_return (entry_block, NULL, tmp);

  return result;
}

static void
define_cast_functions (void)
{
  struct cast_type cast_types[NUM_CAST_TYPES]
    = { { comp.bool_type, "bool", false },
        { comp.char_ptr_type, "char_ptr", true },
        { comp.int_type, "int", false },
        { comp.lisp_cons_ptr_type, "lisp_cons_ptr", true },
        { comp.lisp_obj_ptr_type, "lisp_obj_ptr", true },
        { comp.lisp_word_tag_type, "lisp_word_tag", false },
        { comp.lisp_word_type, "lisp_word", LISP_WORDS_ARE_POINTERS },
        { comp.long_long_type, "long_long", false },
        { comp.long_type, "long", false },
        { comp.ptrdiff_type, "ptrdiff", false },
        { comp.uintptr_type, "uintptr", false },
        { comp.unsigned_long_long_type, "unsigned_long_long", false },
        { comp.unsigned_long_type, "unsigned_long", false },
        { comp.unsigned_type, "unsigned", false },
        { comp.void_ptr_type, "void_ptr", true } };
  gcc_jit_field *cast_union_fields[2];

  /* Define the union used for type punning.  */
  cast_union_fields[0] = gcc_jit_context_new_field (comp.ctxt,
						    NULL,
						    comp.void_ptr_type,
						    "void_ptr");
  cast_union_fields[1] = gcc_jit_context_new_field (comp.ctxt,
						    NULL,
						    comp.uintptr_type,
						    "uintptr");

  comp.cast_union_type
    = gcc_jit_context_new_union_type (comp.ctxt,
				      NULL,
				      "cast_union",
				      2, cast_union_fields);

  comp.cast_ptr_to_int = define_type_punning ("cast_pointer_to_uintptr_t",
					      comp.void_ptr_type,
					      cast_union_fields[0],
					      comp.uintptr_type,
					      cast_union_fields[1]);
  comp.cast_int_to_ptr = define_type_punning ("cast_uintptr_t_to_pointer",
					      comp.uintptr_type,
					      cast_union_fields[1],
					      comp.void_ptr_type,
					      cast_union_fields[0]);


  for (int i = 0; i < NUM_CAST_TYPES; ++i)
    comp.cast_types[i] = cast_types[i].type;

  /* Define the cast functions using a matrix.  */
  for (int i = 0; i < NUM_CAST_TYPES; ++i)
    for (int j = 0; j < NUM_CAST_TYPES; ++j)
        comp.cast_functions_from_to[i][j] =
          define_cast_from_to (cast_types[i], cast_types[j]);
}
#endif /* !LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast */

static void
define_CHECK_TYPE (void)
{
  gcc_jit_param *param[] =
    { gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.int_type,
				 "ok"),
      gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.lisp_obj_type,
				 "predicate"),
      gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.lisp_obj_type,
				 "x") };
  comp.check_type =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.void_type,
				  "CHECK_TYPE",
				  3,
				  param,
				  0);
  gcc_jit_rvalue *ok = gcc_jit_param_as_rvalue (param[0]);
  gcc_jit_rvalue *predicate = gcc_jit_param_as_rvalue (param[1]);
  gcc_jit_rvalue *x = gcc_jit_param_as_rvalue (param[2]);

  DECL_BLOCK (entry_block, comp.check_type);
  DECL_BLOCK (ok_block, comp.check_type);
  DECL_BLOCK (not_ok_block, comp.check_type);

  comp.block = entry_block;
  comp.func = comp.check_type;

  emit_cond_jump (ok, ok_block, not_ok_block);

  gcc_jit_block_end_with_void_return (ok_block, NULL);

  comp.block = not_ok_block;

  gcc_jit_rvalue *wrong_type_args[] = { predicate, x };

  gcc_jit_block_add_eval (comp.block,
			  NULL,
			  emit_call (intern_c_string ("wrong_type_argument"),
				     comp.void_type, 2, wrong_type_args,
				     false));

  gcc_jit_block_end_with_void_return (not_ok_block, NULL);
}

/* Define a substitute for CAR as always inlined function.  */

static void
define_CAR_CDR (void)
{
  gcc_jit_function *func[2];
  char const *f_name[] = { "CAR", "CDR" };
  for (int i = 0; i < 2; i++)
    {
      gcc_jit_param *param[] =
	{ gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.lisp_obj_type,
				     "c"),
	  gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.bool_type,
				     "cert_cons") };
      /* TODO: understand why after ipa-prop pass gcc is less keen on inlining
	 and as consequence can refuse to compile these. (see dhrystone.el)
	 Flag this and all the one involved in ipa-prop as
	 GCC_JIT_FUNCTION_INTERNAL not to fail compilation in case.
	 This seems at least to have no perf downside.  */
      func[i] =
	gcc_jit_context_new_function (comp.ctxt, NULL,
				      GCC_JIT_FUNCTION_INTERNAL,
				      comp.lisp_obj_type,
				      f_name[i],
				      2, param, 0);

      gcc_jit_rvalue *c = gcc_jit_param_as_rvalue (param[0]);
      DECL_BLOCK (entry_block, func[i]);
      DECL_BLOCK (is_cons_b, func[i]);
      DECL_BLOCK (not_a_cons_b, func[i]);
      comp.block = entry_block;
      comp.func = func[i];
      emit_cond_jump (emit_binary_op (GCC_JIT_BINARY_OP_LOGICAL_OR,
				      comp.bool_type,
				      gcc_jit_param_as_rvalue (param[1]),
				      emit_CONSP (c)),
		      is_cons_b,
		      not_a_cons_b);
      comp.block = is_cons_b;
      if (i == 0)
	gcc_jit_block_end_with_return (comp.block, NULL, emit_XCAR (c));
      else
	gcc_jit_block_end_with_return (comp.block, NULL, emit_XCDR (c));

      comp.block = not_a_cons_b;

      DECL_BLOCK (is_nil_b, func[i]);
      DECL_BLOCK (not_nil_b, func[i]);

      emit_cond_jump (emit_NILP (c), is_nil_b, not_nil_b);

      comp.block = is_nil_b;
      gcc_jit_block_end_with_return (comp.block,
				     NULL,
				     emit_lisp_obj_rval (Qnil));

      comp.block = not_nil_b;
      gcc_jit_rvalue *wrong_type_args[] =
	{ emit_lisp_obj_rval (Qlistp), c };

      gcc_jit_block_add_eval (comp.block,
			      NULL,
			      emit_call (intern_c_string ("wrong_type_argument"),
					 comp.void_type, 2, wrong_type_args,
					 false));
      gcc_jit_block_end_with_return (comp.block,
				     NULL,
				     emit_lisp_obj_rval (Qnil));
    }
  comp.car = func[0];
  comp.cdr = func[1];
}

static void
define_setcar_setcdr (void)
{
  char const *f_name[] = { "setcar", "setcdr" };
  char const *par_name[] = { "new_car", "new_cdr" };

  for (int i = 0; i < 2; i++)
    {
      gcc_jit_param *cell =
	gcc_jit_context_new_param (comp.ctxt,
				   NULL,
				   comp.lisp_obj_type,
				   "cell");
      gcc_jit_param *new_el =
	gcc_jit_context_new_param (comp.ctxt,
				   NULL,
				   comp.lisp_obj_type,
				   par_name[i]);

      gcc_jit_param *param[] =
	{ cell,
	  new_el,
	  gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.bool_type,
				     "cert_cons") };

      gcc_jit_function **f_ref = !i ? &comp.setcar : &comp.setcdr;
      *f_ref = gcc_jit_context_new_function (comp.ctxt, NULL,
					     GCC_JIT_FUNCTION_INTERNAL,
					     comp.lisp_obj_type,
					     f_name[i],
					     3, param, 0);
      DECL_BLOCK (entry_block, *f_ref);
      comp.func = *f_ref;
      comp.block = entry_block;

      /* CHECK_CONS (cell);  */
      emit_CHECK_CONS (gcc_jit_param_as_rvalue (cell));

      /* CHECK_IMPURE (cell, XCONS (cell));  */
      gcc_jit_rvalue *args[] =
	{ gcc_jit_param_as_rvalue (cell),
	  emit_XCONS (gcc_jit_param_as_rvalue (cell)) };

      gcc_jit_block_add_eval (entry_block,
			      NULL,
			      gcc_jit_context_new_call (comp.ctxt,
							NULL,
							comp.check_impure,
							2,
							args));

      /* XSETCDR (cell, newel);  */
      if (!i)
	emit_XSETCAR (gcc_jit_param_as_rvalue (cell),
		      gcc_jit_param_as_rvalue (new_el));
      else
	emit_XSETCDR (gcc_jit_param_as_rvalue (cell),
		      gcc_jit_param_as_rvalue (new_el));

      /* return newel;  */
      gcc_jit_block_end_with_return (entry_block,
				     NULL,
				     gcc_jit_param_as_rvalue (new_el));
    }
}

/*
   Define a substitute for Fadd1 Fsub1.
   Currently expose just fixnum arithmetic.
*/

static void
define_add1_sub1 (void)
{
  gcc_jit_block *bb_orig = comp.block;
  gcc_jit_function *func[2];
  char const *f_name[] = { "add1", "sub1" };
  char const *fall_back_func[] = { "1+", "1-" };
  enum gcc_jit_binary_op op[] =
    { GCC_JIT_BINARY_OP_PLUS, GCC_JIT_BINARY_OP_MINUS };
  for (ptrdiff_t i = 0; i < 2; i++)
    {
      gcc_jit_param *param[] =
	{ gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.lisp_obj_type,
				     "n"),
	  gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.bool_type,
				     "cert_fixnum") };
      comp.func = func[i] =
	gcc_jit_context_new_function (comp.ctxt, NULL,
				      GCC_JIT_FUNCTION_INTERNAL,
				      comp.lisp_obj_type,
				      f_name[i],
				      2,
				      param, 0);
      DECL_BLOCK (entry_block, func[i]);
      DECL_BLOCK (inline_block, func[i]);
      DECL_BLOCK (fcall_block, func[i]);

      comp.block = entry_block;

      /* cert_fixnum ||
	 ((FIXNUMP (n) && XFIXNUM (n) != MOST_POSITIVE_FIXNUM
	 ? (XFIXNUM (n) + 1)
	 : Fadd1 (n)) */

      gcc_jit_rvalue *n = gcc_jit_param_as_rvalue (param[0]);
      gcc_jit_rvalue *n_fixnum = emit_XFIXNUM (n);
      gcc_jit_rvalue *sure_fixnum =
	emit_binary_op (GCC_JIT_BINARY_OP_LOGICAL_OR,
			comp.bool_type,
			gcc_jit_param_as_rvalue (param[1]),
			emit_FIXNUMP (n));
      emit_cond_jump (
	emit_binary_op (
	  GCC_JIT_BINARY_OP_LOGICAL_AND,
	  comp.bool_type,
	  sure_fixnum,
	  gcc_jit_context_new_comparison (
	    comp.ctxt,
	    NULL,
	    GCC_JIT_COMPARISON_NE,
	    n_fixnum,
	    i == 0
	    ? emit_rvalue_from_emacs_int (MOST_POSITIVE_FIXNUM)
	    : emit_rvalue_from_emacs_int (MOST_NEGATIVE_FIXNUM))),
	inline_block,
	fcall_block);

      comp.block = inline_block;
      gcc_jit_rvalue *inline_res =
	emit_binary_op (op[i], comp.emacs_int_type, n_fixnum, comp.one);

      gcc_jit_block_end_with_return (inline_block,
				     NULL,
				     emit_make_fixnum (inline_res));

      comp.block = fcall_block;
      gcc_jit_rvalue *call_res = emit_call (intern_c_string (fall_back_func[i]),
					    comp.lisp_obj_type, 1, &n, false);
      gcc_jit_block_end_with_return (fcall_block,
				     NULL,
				     call_res);
    }
  comp.block = bb_orig;
  comp.add1 = func[0];
  comp.sub1 = func[1];
}

static void
define_negate (void)
{
  gcc_jit_block *bb_orig = comp.block;
  gcc_jit_param *param[] =
	{ gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.lisp_obj_type,
				     "n"),
	  gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.bool_type,
				     "cert_fixnum") };

  comp.func = comp.negate =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.lisp_obj_type,
				  "negate",
				  2, param, 0);

  DECL_BLOCK (entry_block, comp.negate);
  DECL_BLOCK (inline_block, comp.negate);
  DECL_BLOCK (fcall_block, comp.negate);

  comp.block = entry_block;

  /* (cert_fixnum || FIXNUMP (TOP)) && XFIXNUM (TOP) != MOST_NEGATIVE_FIXNUM
     ? make_fixnum (- XFIXNUM (TOP)) : Fminus (1, &TOP))  */

  gcc_jit_lvalue *n = gcc_jit_param_as_lvalue (param[0]);
  gcc_jit_rvalue *n_fixnum = emit_XFIXNUM (gcc_jit_lvalue_as_rvalue (n));
  gcc_jit_rvalue *sure_fixnum =
    emit_binary_op (GCC_JIT_BINARY_OP_LOGICAL_OR,
		    comp.bool_type,
		    gcc_jit_param_as_rvalue (param[1]),
		    emit_FIXNUMP (gcc_jit_lvalue_as_rvalue (n)));

  emit_cond_jump (emit_binary_op (GCC_JIT_BINARY_OP_LOGICAL_AND,
				  comp.bool_type,
				  sure_fixnum,
				  gcc_jit_context_new_comparison (
				    comp.ctxt,
				    NULL,
				    GCC_JIT_COMPARISON_NE,
				    n_fixnum,
				    emit_rvalue_from_emacs_int (
                                      MOST_NEGATIVE_FIXNUM))),
		  inline_block,
		  fcall_block);

  comp.block = inline_block;
  gcc_jit_rvalue *inline_res =
    gcc_jit_context_new_unary_op (comp.ctxt,
				  NULL,
				  GCC_JIT_UNARY_OP_MINUS,
				  comp.emacs_int_type,
				  n_fixnum);

  gcc_jit_block_end_with_return (inline_block,
				 NULL,
				 emit_make_fixnum (inline_res));

  comp.block = fcall_block;
  gcc_jit_rvalue *call_res = emit_call_ref (Qminus, 1, n, false);
  gcc_jit_block_end_with_return (fcall_block,
				 NULL,
				 call_res);
  comp.block = bb_orig;
}

/* Define a substitute for PSEUDOVECTORP as always inlined function.  */

static void
define_PSEUDOVECTORP (void)
{
  gcc_jit_param *param[] =
    { gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.lisp_obj_type,
				 "a"),
      gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.int_type,
				 "code") };

  comp.pseudovectorp =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.bool_type,
				  "PSEUDOVECTORP",
				  2,
				  param,
				  0);

  DECL_BLOCK (entry_block, comp.pseudovectorp);
  DECL_BLOCK (ret_false_b, comp.pseudovectorp);
  DECL_BLOCK (call_pseudovector_typep_b, comp.pseudovectorp);

  comp.block = entry_block;
  comp.func = comp.pseudovectorp;

  emit_cond_jump (emit_VECTORLIKEP (gcc_jit_param_as_rvalue (param[0])),
		  call_pseudovector_typep_b,
		  ret_false_b);

  comp.block = ret_false_b;
  gcc_jit_block_end_with_return (ret_false_b,
				 NULL,
				 gcc_jit_context_new_rvalue_from_int (
				   comp.ctxt,
				   comp.bool_type,
				   false));

  gcc_jit_rvalue *args[] =
    { gcc_jit_param_as_rvalue (param[0]),
      gcc_jit_param_as_rvalue (param[1]) };
  comp.block = call_pseudovector_typep_b;
  /* FIXME use XUNTAG now that's available.  */
  gcc_jit_block_end_with_return (
    call_pseudovector_typep_b,
    NULL,
    emit_call (intern_c_string ("helper_PSEUDOVECTOR_TYPEP_XUNTAG"),
	       comp.bool_type, 2, args, false));
}

static void
define_GET_SYMBOL_WITH_POSITION (void)
{
  gcc_jit_param *param[] =
    { gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.lisp_obj_type,
				 "a") };

  comp.get_symbol_with_position =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.lisp_symbol_with_position_ptr_type,
				  "GET_SYMBOL_WITH_POSITION",
				  1,
				  param,
				  0);

  DECL_BLOCK (entry_block, comp.get_symbol_with_position);

  comp.block = entry_block;
  comp.func = comp.get_symbol_with_position;

  gcc_jit_rvalue *args[] =
    { gcc_jit_param_as_rvalue (param[0]) };
  /* FIXME use XUNTAG now that's available.  */
  gcc_jit_block_end_with_return (
    entry_block,
    NULL,
    emit_call (intern_c_string ("helper_GET_SYMBOL_WITH_POSITION"),
	       comp.lisp_symbol_with_position_ptr_type,
	       1, args, false));
}

static void define_SYMBOL_WITH_POS_SYM (void)
{
  gcc_jit_rvalue *tmpr, *swp;
  gcc_jit_lvalue *tmpl;

  gcc_jit_param *param [] =
    { gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.lisp_obj_type,
				 "a") };
  comp.symbol_with_pos_sym =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.lisp_obj_type,
				  "SYMBOL_WITH_POS_SYM",
				  1,
				  param,
				  0);

  DECL_BLOCK (entry_block, comp.symbol_with_pos_sym);
  comp.func = comp.symbol_with_pos_sym;
  comp.block = entry_block;

  emit_CHECK_SYMBOL_WITH_POS (gcc_jit_param_as_rvalue (param [0]));

  gcc_jit_rvalue *args[] = { gcc_jit_param_as_rvalue (param [0]) };

  swp = gcc_jit_context_new_call (comp.ctxt,
				  NULL,
				  comp.get_symbol_with_position,
				  1,
				  args);
  tmpl = gcc_jit_rvalue_dereference (swp, NULL);
  tmpr = gcc_jit_lvalue_as_rvalue (tmpl);
  gcc_jit_block_end_with_return (entry_block,
				 NULL,
				 gcc_jit_rvalue_access_field (
				   tmpr,
				   NULL,
				   comp.lisp_symbol_with_position_sym));
}

static void
define_CHECK_IMPURE (void)
{
  gcc_jit_param *param[] =
    { gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.lisp_obj_type,
				 "obj"),
      gcc_jit_context_new_param (comp.ctxt,
				 NULL,
				 comp.void_ptr_type,
				 "ptr") };
  comp.check_impure =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.void_type,
				  "CHECK_IMPURE",
				  2,
				  param,
				  0);

    DECL_BLOCK (entry_block, comp.check_impure);
    DECL_BLOCK (err_block, comp.check_impure);
    DECL_BLOCK (ok_block, comp.check_impure);

    comp.block = entry_block;
    comp.func = comp.check_impure;

    emit_cond_jump (emit_PURE_P (gcc_jit_param_as_rvalue (param[0])), /* FIXME */
		    err_block,
		    ok_block);
    gcc_jit_block_end_with_void_return (ok_block, NULL);

    gcc_jit_rvalue *pure_write_error_arg =
      gcc_jit_param_as_rvalue (param[0]);

    comp.block = err_block;
    gcc_jit_block_add_eval (comp.block,
			    NULL,
			    emit_call (intern_c_string ("pure_write_error"),
				       comp.void_type, 1,&pure_write_error_arg,
				       false));

    gcc_jit_block_end_with_void_return (err_block, NULL);
}

static void
define_maybe_gc_or_quit (void)
{

  /*
    void
    maybe_gc_or_quit (void)
    {
      static unsigned quitcounter;
     inc:
      quitcounter++;
      if (quitcounter >> 14) goto maybe_do_it else goto pass;
     maybe_do_it:
          quitcounter = 0;
          maybe_gc ();
          maybe_quit ();
          return;
     pass:
          return;
    }
  */

  gcc_jit_block *bb_orig = comp.block;

  gcc_jit_lvalue *quitcounter =
    gcc_jit_context_new_global (
      comp.ctxt,
      NULL,
      GCC_JIT_GLOBAL_INTERNAL,
      comp.unsigned_type,
      "quitcounter");

  comp.func = comp.maybe_gc_or_quit =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.void_type,
				  "maybe_gc_quit",
				  0, NULL, 0);
  DECL_BLOCK (increment_block, comp.maybe_gc_or_quit);
  DECL_BLOCK (maybe_do_it_block, comp.maybe_gc_or_quit);
  DECL_BLOCK (pass_block, comp.maybe_gc_or_quit);

  comp.block = increment_block;

  gcc_jit_block_add_assignment (
    comp.block,
    NULL,
    quitcounter,
    emit_binary_op (GCC_JIT_BINARY_OP_PLUS,
		    comp.unsigned_type,
		    gcc_jit_lvalue_as_rvalue (quitcounter),
		    gcc_jit_context_new_rvalue_from_int (comp.ctxt,
							 comp.unsigned_type,
							 1)));
  emit_cond_jump (
    emit_binary_op (GCC_JIT_BINARY_OP_RSHIFT,
		    comp.unsigned_type,
		    gcc_jit_lvalue_as_rvalue (quitcounter),
		    gcc_jit_context_new_rvalue_from_int (comp.ctxt,
							 comp.unsigned_type,
							 9)),
    /* 9 translates into checking for GC or quit every 512 calls to
       'maybe_gc_quit'.  This is the smallest value I could find with
       no performance impact running elisp-banechmarks and the same
       used by the byte interpreter (see 'exec_byte_code').  */
    maybe_do_it_block,
    pass_block);

  comp.block = maybe_do_it_block;

  gcc_jit_block_add_assignment (
    comp.block,
    NULL,
    quitcounter,
    gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					 comp.unsigned_type,
					 0));
  gcc_jit_block_add_eval (comp.block, NULL,
			  emit_call (intern_c_string ("maybe_gc"),
				     comp.void_type, 0, NULL, false));
  gcc_jit_block_add_eval (comp.block, NULL,
			  emit_call (intern_c_string ("maybe_quit"),
				     comp.void_type, 0, NULL, false));
  gcc_jit_block_end_with_void_return (comp.block, NULL);

  gcc_jit_block_end_with_void_return (pass_block, NULL);

  comp.block = bb_orig;
}

/* Define a function to convert boolean into t or nil */

static void
define_bool_to_lisp_obj (void)
{
  /* x ? Qt : Qnil */
  gcc_jit_param *param = gcc_jit_context_new_param (comp.ctxt,
						    NULL,
						    comp.bool_type,
						    "x");
  comp.bool_to_lisp_obj =
    gcc_jit_context_new_function (comp.ctxt, NULL,
				  GCC_JIT_FUNCTION_INTERNAL,
				  comp.lisp_obj_type,
				  "bool_to_lisp_obj",
				  1,
				  &param,
				  0);
  DECL_BLOCK (entry_block, comp.bool_to_lisp_obj);
  DECL_BLOCK (ret_t_block, comp.bool_to_lisp_obj);
  DECL_BLOCK (ret_nil_block, comp.bool_to_lisp_obj);
  comp.block = entry_block;
  comp.func = comp.bool_to_lisp_obj;

  emit_cond_jump (gcc_jit_param_as_rvalue (param),
		  ret_t_block,
		  ret_nil_block);

  comp.block = ret_t_block;
  gcc_jit_block_end_with_return (ret_t_block,
				 NULL,
				 emit_lisp_obj_rval (Qt));

  comp.block = ret_nil_block;
  gcc_jit_block_end_with_return (ret_nil_block,
				 NULL,
				 emit_lisp_obj_rval (Qnil));
}

static gcc_jit_function *
declare_lex_function (Lisp_Object func)
{
  gcc_jit_function *res;
  Lisp_Object c_name = CALL1I (comp-func-c-name, func);
  Lisp_Object args = CALL1I (comp-func-l-args, func);
  bool nargs = !NILP (CALL1I (comp-nargs-p, args));
  USE_SAFE_ALLOCA;

  if (!nargs)
    {
      EMACS_INT max_args = XFIXNUM (CALL1I (comp-args-max, args));
      eassert (max_args < INT_MAX);
      gcc_jit_type **type = SAFE_ALLOCA (max_args * sizeof (*type));
      for (ptrdiff_t i = 0; i < max_args; i++)
	type[i] = comp.lisp_obj_type;

      gcc_jit_param **params = SAFE_ALLOCA (max_args * sizeof (*params));
      for (int i = 0; i < max_args; ++i)
	params[i] = gcc_jit_context_new_param (comp.ctxt,
					      NULL,
					      type[i],
					      format_string ("par_%d", i));
      res = gcc_jit_context_new_function (comp.ctxt, NULL,
					  GCC_JIT_FUNCTION_EXPORTED,
					  comp.lisp_obj_type,
					  SSDATA (c_name),
					  max_args,
					  params,
					  0);
    }
  else
    {
      gcc_jit_param *params[] =
	{ gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.ptrdiff_type,
				     "nargs"),
	  gcc_jit_context_new_param (comp.ctxt,
				     NULL,
				     comp.lisp_obj_ptr_type,
				     "args") };
      res =
	gcc_jit_context_new_function (comp.ctxt,
				      NULL,
				      GCC_JIT_FUNCTION_EXPORTED,
				      comp.lisp_obj_type,
				      SSDATA (c_name),
				      ARRAYELTS (params), params, 0);
    }
  SAFE_FREE ();
  return res;
}

/* Declare a function being compiled and add it to comp.exported_funcs_h.  */

static void
declare_function (Lisp_Object func)
{
  gcc_jit_function *gcc_func =
    !NILP (CALL1I (comp-func-l-p, func))
    ? declare_lex_function (func)
    : gcc_jit_context_new_function (comp.ctxt,
				    NULL,
				    GCC_JIT_FUNCTION_EXPORTED,
				    comp.lisp_obj_type,
				    SSDATA (CALL1I (comp-func-c-name, func)),
				    0, NULL, 0);
  Fputhash (CALL1I (comp-func-c-name, func),
	    make_mint_ptr (gcc_func),
	    comp.exported_funcs_h);
}

static void
compile_function (Lisp_Object func)
{
  USE_SAFE_ALLOCA;
  comp.frame_size = XFIXNUM (CALL1I (comp-func-frame-size, func));
  eassert (comp.frame_size < INT_MAX);

  comp.func = xmint_pointer (Fgethash (CALL1I (comp-func-c-name, func),
				       comp.exported_funcs_h, Qnil));

  comp.func_has_non_local = !NILP (CALL1I (comp-func-has-non-local, func));
  comp.func_speed = XFIXNUM (CALL1I (comp-func-speed, func));

  comp.func_relocs_local =
    gcc_jit_function_new_local (comp.func,
				NULL,
				comp.func_relocs_ptr_type,
				"freloc");

  comp.frame = SAFE_ALLOCA (comp.frame_size * sizeof (*comp.frame));
  if (comp.func_has_non_local || !comp.func_speed)
    {
      /* FIXME: See bug#42360.  */
      gcc_jit_lvalue *arr =
        gcc_jit_function_new_local (
          comp.func,
          NULL,
          gcc_jit_context_new_array_type (comp.ctxt,
                                          NULL,
                                          comp.lisp_obj_type,
                                          comp.frame_size),
          "frame");

      for (ptrdiff_t i = 0; i < comp.frame_size; ++i)
	comp.frame[i] =
          gcc_jit_context_new_array_access (
            comp.ctxt,
            NULL,
            gcc_jit_lvalue_as_rvalue (arr),
            gcc_jit_context_new_rvalue_from_int (comp.ctxt,
                                                 comp.int_type,
                                                 i));
    }
  else
    for (ptrdiff_t i = 0; i < comp.frame_size; ++i)
      comp.frame[i] =
	gcc_jit_function_new_local (comp.func,
				    NULL,
				    comp.lisp_obj_type,
				    format_string ("slot_%td", i));

  comp.scratch = NULL;

  comp.loc_handler =  gcc_jit_function_new_local (comp.func,
						  NULL,
						  comp.handler_ptr_type,
						  "c");

  comp.func_blocks_h = CALLN (Fmake_hash_table);

  /* Pre-declare all basic blocks to gcc.
     The "entry" block must be declared as first.  */
  declare_block (Qentry);
  Lisp_Object blocks = CALL1I (comp-func-blocks, func);
  struct Lisp_Hash_Table *ht = XHASH_TABLE (blocks);
  for (ptrdiff_t i = 0; i < HASH_TABLE_SIZE (ht); i++)
    {
      Lisp_Object block_name = HASH_KEY (ht, i);
      if (!EQ (block_name, Qentry)
	  && !BASE_EQ (block_name, Qunbound))
	declare_block (block_name);
    }

  gcc_jit_block_add_assignment (retrive_block (Qentry),
				NULL,
				comp.func_relocs_local,
				gcc_jit_lvalue_as_rvalue (comp.func_relocs));


  for (ptrdiff_t i = 0; i < HASH_TABLE_SIZE (ht); i++)
    {
      Lisp_Object block_name = HASH_KEY (ht, i);
      if (!BASE_EQ (block_name, Qunbound))
	{
	  Lisp_Object block = HASH_VALUE (ht, i);
	  Lisp_Object insns = CALL1I (comp-block-insns, block);
	  if (NILP (block) || NILP (insns))
	    xsignal1 (Qnative_ice,
		      build_string ("basic block is missing or empty"));

	  comp.block = retrive_block (block_name);
	  while (CONSP (insns))
	    {
	      Lisp_Object insn = XCAR (insns);
	      emit_limple_insn (insn);
	      insns = XCDR (insns);
	    }
	}
    }
  const char *err =  gcc_jit_context_get_first_error (comp.ctxt);
  if (err)
    xsignal3 (Qnative_ice,
	      build_string ("failing to compile function"),
	      CALL1I (comp-func-name, func),
	      build_string (err));
  SAFE_FREE ();
}

\f
/**********************************/
/* Entry points exposed to lisp.  */
/**********************************/

/* In use by Fcomp_el_to_eln_filename.  */
static Lisp_Object loadsearch_re_list;

static Lisp_Object
make_directory_wrapper (Lisp_Object directory)
{
  CALL2I (make-directory, directory, Qt);
  return Qnil;
}

static Lisp_Object
make_directory_wrapper_1 (Lisp_Object ignore)
{
  return Qt;
}

DEFUN ("comp-el-to-eln-rel-filename", Fcomp_el_to_eln_rel_filename,
       Scomp_el_to_eln_rel_filename, 1, 1, 0,
       doc: /* Return the relative name of the .eln file for FILENAME.
FILENAME must exist, and if it's a symlink, the target must exist.
If FILENAME is compressed, it must have the \".gz\" extension,
and Emacs must have been compiled with zlib; the file will be
uncompressed on the fly to hash its contents.
Value includes the original base name, followed by 2 hash values,
one for the file name and another for its contents, followed by .eln.  */)
  (Lisp_Object filename)
{
  CHECK_STRING (filename);

  /* Resolve possible symlinks in FILENAME, so that path_hash below
     always compares equal. (Bug#44701).  */
  filename = Fexpand_file_name (filename, Qnil);
  char *file_normalized = realpath (SSDATA (ENCODE_FILE (filename)), NULL);
  if (file_normalized)
    {
      filename = DECODE_FILE (make_unibyte_string (file_normalized,
						   strlen (file_normalized)));
      xfree (file_normalized);
    }

  if (NILP (Ffile_exists_p (filename)))
    xsignal1 (Qfile_missing, filename);

#ifdef WINDOWSNT
  filename = Fw32_long_file_name (filename);
#endif

  Lisp_Object content_hash = comp_hash_source_file (filename);

  if (suffix_p (filename, ".gz"))
    filename = Fsubstring (filename, Qnil, make_fixnum (-3));

  /* We create eln filenames with an hash in order to look-up these
     starting from the source filename, IOW have a relation

     /absolute/path/filename.el + content ->
     eln-cache/filename-path_hash-content_hash.eln.

     'dlopen' can return the same handle if two shared with the same
     filename are loaded in two different times (even if the first was
     deleted!).  To prevent this scenario the source file content is
     included in the hashing algorithm.

     As at any point in time no more then one file can exist with the
     same filename, should be possible to clean up all
     filename-path_hash-* except the most recent one (or the new one
     being recompiled).

     As installing .eln files compiled during the build changes their
     absolute path we need an hashing mechanism that is not sensitive
     to that.  For this we replace if match PATH_DUMPLOADSEARCH or
     *PATH_REL_LOADSEARCH with '//' before computing the hash.  */

  if (NILP (loadsearch_re_list))
    {
      Lisp_Object sys_re =
	concat2 (build_string ("\\`[[:ascii:]]+"),
		 Fregexp_quote (build_string ("/" PATH_REL_LOADSEARCH "/")));
      Lisp_Object dump_load_search =
	Fexpand_file_name (build_string (PATH_DUMPLOADSEARCH "/"), Qnil);
#ifdef WINDOWSNT
      dump_load_search = Fw32_long_file_name (dump_load_search);
#endif
      loadsearch_re_list = list2 (sys_re, Fregexp_quote (dump_load_search));
    }

  Lisp_Object lds_re_tail = loadsearch_re_list;
  FOR_EACH_TAIL (lds_re_tail)
    {
      Lisp_Object match_idx =
	Fstring_match (XCAR (lds_re_tail), filename, Qnil, Qnil);
      if (BASE_EQ (match_idx, make_fixnum (0)))
	{
	  filename =
	    Freplace_match (build_string ("//"), Qt, Qt, filename, Qnil);
	  break;
	}
    }
  Lisp_Object separator = build_string ("-");
  Lisp_Object path_hash = comp_hash_string (filename);
  filename = concat2 (Ffile_name_nondirectory (Fsubstring (filename, Qnil,
							   make_fixnum (-3))),
		      separator);
  Lisp_Object hash = concat3 (path_hash, separator, content_hash);
  return concat3 (filename, hash, build_string (NATIVE_ELISP_SUFFIX));
}

DEFUN ("comp-el-to-eln-filename", Fcomp_el_to_eln_filename,
       Scomp_el_to_eln_filename, 1, 2, 0,
       doc: /* Return the absolute .eln file name for source FILENAME.
The resulting .eln file name is intended to be used for natively
compiling FILENAME.  FILENAME must exist and be readable, but other
than that, its leading directories are ignored when constructing
the name of the .eln file.
If BASE-DIR is non-nil, use it as the directory for the .eln file;
non-absolute BASE-DIR is interpreted as relative to `invocation-directory'.
If BASE-DIR is omitted or nil, look for the first writable directory
in `native-comp-eln-load-path', and use as BASE-DIR its subdirectory
whose name is given by `comp-native-version-dir'.
If FILENAME specifies a preloaded file, the directory for the .eln
file is the \"preloaded/\" subdirectory of the directory determined
as described above.  FILENAME is considered to be a preloaded file if
the value of `comp-file-preloaded-p' is non-nil, or if FILENAME
appears in the value of the environment variable LISP_PRELOADED;
the latter is supposed to be used by the Emacs build procedure.  */)
  (Lisp_Object filename, Lisp_Object base_dir)
{
  Lisp_Object source_filename = filename;
  filename = Fcomp_el_to_eln_rel_filename (filename);

  /* If base_dir was not specified search inside Vnative_comp_eln_load_path
     for the first directory where we have write access.  */
  if (NILP (base_dir))
    {
      Lisp_Object eln_load_paths = Vnative_comp_eln_load_path;
      FOR_EACH_TAIL (eln_load_paths)
	{
	  Lisp_Object dir = XCAR (eln_load_paths);
	  if (!NILP (Ffile_exists_p (dir)))
	    {
	      if (!NILP (Ffile_writable_p (dir)))
		{
		  base_dir = dir;
		  break;
		}
	    }
	  else
	    {
	      /* Try to create the directory and if succeeds use it.  */
	      if (NILP (internal_condition_case_1 (make_directory_wrapper,
						   dir, Qt,
						   make_directory_wrapper_1)))
		{
		  base_dir = dir;
		  break;
		}
	    }
	}
      if (NILP (base_dir))
	error ("Cannot find suitable directory for output in "
	       "`native-comp-eln-load-path'.");
    }

  if (!file_name_absolute_p (SSDATA (base_dir)))
    base_dir = Fexpand_file_name (base_dir, Vinvocation_directory);

  /* In case the file being compiled is found in 'LISP_PRELOADED' or
     `comp-file-preloaded-p' is non-nil target for output the
     'preloaded' subfolder.  */
  Lisp_Object lisp_preloaded =
    Fgetenv_internal (build_string ("LISP_PRELOADED"), Qnil);
  base_dir = Fexpand_file_name (Vcomp_native_version_dir, base_dir);
  if (comp_file_preloaded_p
      || (!NILP (lisp_preloaded)
	  && !NILP (Fmember (CALL1I (file-name-base, source_filename),
			     Fmapcar (intern_c_string ("file-name-base"),
				      CALL1I (split-string, lisp_preloaded))))))
    base_dir = Fexpand_file_name (build_string ("preloaded"), base_dir);

  return Fexpand_file_name (filename, base_dir);
}

DEFUN ("comp--install-trampoline", Fcomp__install_trampoline,
       Scomp__install_trampoline, 2, 2, 0,
       doc: /* Install a TRAMPOLINE for primitive SUBR-NAME.  */)
  (Lisp_Object subr_name, Lisp_Object trampoline)
{
  CHECK_SYMBOL (subr_name);
  CHECK_SUBR (trampoline);
  Lisp_Object orig_subr = Fsymbol_function (subr_name);
  CHECK_SUBR (orig_subr);

  /* FIXME: add a post dump load trampoline machinery to remove this
     check.  */
  if (will_dump_p ())
    signal_error ("Trying to advice unexpected primitive before dumping",
		  subr_name);

  Lisp_Object subr_l = Vcomp_subr_list;
  ptrdiff_t i = ARRAYELTS (helper_link_table);
  FOR_EACH_TAIL (subr_l)
    {
      Lisp_Object subr = XCAR (subr_l);
      if (EQ (subr, orig_subr))
	{
	  freloc.link_table[i] = XSUBR (trampoline)->function.a0;
	  Fputhash (subr_name, trampoline, Vcomp_installed_trampolines_h);
	  return Qt;
	}
      i++;
    }
    signal_error ("Trying to install trampoline for non existent subr",
		  subr_name);
    return Qnil;
}

DEFUN ("comp--init-ctxt", Fcomp__init_ctxt, Scomp__init_ctxt,
       0, 0, 0,
       doc: /* Initialize the native compiler context.
Return t on success.  */)
  (void)
{
  load_gccjit_if_necessary (true);

  if (comp.ctxt)
    {
      xsignal1 (Qnative_ice,
		build_string ("compiler context already taken"));
      return Qnil;
    }

  if (NILP (comp.emitter_dispatcher))
    {
      /* Move this into syms_of_comp the day will be dumpable.  */
      comp.emitter_dispatcher = CALLN (Fmake_hash_table);
      register_emitter (Qset_internal, emit_set_internal);
      register_emitter (Qhelper_unbind_n, emit_simple_limple_call_lisp_ret);
      register_emitter (Qhelper_unwind_protect,
			emit_simple_limple_call_void_ret);
      register_emitter (Qrecord_unwind_current_buffer,
			emit_simple_limple_call_lisp_ret);
      register_emitter (Qrecord_unwind_protect_excursion,
			emit_simple_limple_call_void_ret);
      register_emitter (Qhelper_save_restriction,
			emit_simple_limple_call_void_ret);
      /* Inliners.  */
      register_emitter (Qadd1, emit_add1);
      register_emitter (Qsub1, emit_sub1);
      register_emitter (Qconsp, emit_consp);
      register_emitter (Qcar, emit_car);
      register_emitter (Qcdr, emit_cdr);
      register_emitter (Qsetcar, emit_setcar);
      register_emitter (Qsetcdr, emit_setcdr);
      register_emitter (Qnegate, emit_negate);
      register_emitter (Qnumberp, emit_numperp);
      register_emitter (Qintegerp, emit_integerp);
      register_emitter (Qcomp_maybe_gc_or_quit, emit_maybe_gc_or_quit);
    }

  comp.ctxt = gcc_jit_context_acquire ();

  comp.void_type = gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_VOID);
  comp.void_ptr_type =
    gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_VOID_PTR);
  comp.bool_type = gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_BOOL);
  comp.char_type = gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_CHAR);
  comp.int_type = gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_INT);
  comp.unsigned_type = gcc_jit_context_get_type (comp.ctxt,
						 GCC_JIT_TYPE_UNSIGNED_INT);
  comp.long_type = gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_LONG);
  comp.unsigned_long_type =
    gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_UNSIGNED_LONG);
  comp.long_long_type =
    gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_LONG_LONG);
  comp.unsigned_long_long_type =
    gcc_jit_context_get_type (comp.ctxt, GCC_JIT_TYPE_UNSIGNED_LONG_LONG);
  comp.bool_ptr_type = gcc_jit_type_get_pointer (comp.bool_type);
  comp.char_ptr_type = gcc_jit_type_get_pointer (comp.char_type);
  comp.emacs_int_type = gcc_jit_context_get_int_type (comp.ctxt,
						      sizeof (EMACS_INT),
						      true);
  comp.emacs_uint_type = gcc_jit_context_get_int_type (comp.ctxt,
						       sizeof (EMACS_UINT),
						       false);
#if LISP_WORDS_ARE_POINTERS
  comp.lisp_word_type =
    gcc_jit_type_get_pointer (
      gcc_jit_struct_as_type (
	gcc_jit_context_new_opaque_struct (comp.ctxt,
					   NULL,
					   "Lisp_X")));
#else
  comp.lisp_word_type = comp.emacs_int_type;
#endif
  comp.lisp_word_tag_type
    = gcc_jit_context_get_int_type (comp.ctxt, sizeof (Lisp_Word_tag), false);
#ifdef LISP_OBJECT_IS_STRUCT
  comp.lisp_obj_i = gcc_jit_context_new_field (comp.ctxt,
                                               NULL,
                                               comp.lisp_word_type,
                                               "i");
  comp.lisp_obj_s = gcc_jit_context_new_struct_type (comp.ctxt,
                                                     NULL,
                                                     "Lisp_Object",
                                                     1,
                                                     &comp.lisp_obj_i);
  comp.lisp_obj_type = gcc_jit_struct_as_type (comp.lisp_obj_s);
#else
  comp.lisp_obj_type = comp.lisp_word_type;
#endif
  comp.lisp_obj_ptr_type = gcc_jit_type_get_pointer (comp.lisp_obj_type);
  comp.zero =
    gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					 comp.emacs_int_type,
					 0);
  comp.one =
    gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					 comp.emacs_int_type,
					 1);
  comp.inttypebits =
    gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					 comp.emacs_uint_type,
					 INTTYPEBITS);
  comp.lisp_int0 =
    gcc_jit_context_new_rvalue_from_int (comp.ctxt,
					 comp.emacs_int_type,
					 Lisp_Int0);
  comp.ptrdiff_type = gcc_jit_context_get_int_type (comp.ctxt,
						    sizeof (void *),
						    true);
  comp.uintptr_type = gcc_jit_context_get_int_type (comp.ctxt,
						    sizeof (void *),
						    false);
  comp.size_t_type = gcc_jit_context_get_int_type (comp.ctxt,
						   sizeof (size_t),
						   false);

  comp.exported_funcs_h = CALLN (Fmake_hash_table, QCtest, Qequal);
  /*
    Always reinitialize this cause old function definitions are garbage
    collected by libgccjit when the ctxt is released.
  */
  comp.imported_funcs_h = CALLN (Fmake_hash_table);

  define_memcpy ();

  /* Define data structures.  */

  define_lisp_cons ();
  define_lisp_symbol_with_position ();
  define_jmp_buf ();
  define_handler_struct ();
  define_thread_state_struct ();
#ifndef LIBGCCJIT_HAVE_gcc_jit_context_new_bitcast
  define_cast_functions ();
#endif

  return Qt;
}

DEFUN ("comp--release-ctxt", Fcomp__release_ctxt, Scomp__release_ctxt,
       0, 0, 0,
       doc: /* Release the native compiler context.  */)
  (void)
{
  load_gccjit_if_necessary (true);

  if (comp.ctxt)
    gcc_jit_context_release (comp.ctxt);

  if (logfile)
    fclose (logfile);
  comp.ctxt = NULL;

  return Qt;
}

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress"
DEFUN ("comp-native-driver-options-effective-p",
       Fcomp_native_driver_options_effective_p,
       Scomp_native_driver_options_effective_p,
       0, 0, 0,
       doc: /* Return t if `comp-native-driver-options' is effective.  */)
  (void)
{
#if defined (LIBGCCJIT_HAVE_gcc_jit_context_add_driver_option)
  if (gcc_jit_context_add_driver_option)
    return Qt;
#endif
  return Qnil;
}
#pragma GCC diagnostic pop

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress"
DEFUN ("comp-native-compiler-options-effective-p",
       Fcomp_native_compiler_options_effective_p,
       Scomp_native_compiler_options_effective_p,
       0, 0, 0,
       doc: /* Return t if `comp-native-compiler-options' is effective.  */)
  (void)
{
#if defined (LIBGCCJIT_HAVE_gcc_jit_context_add_command_line_option)
  if (gcc_jit_context_add_command_line_option)
    return Qt;
#endif
  return Qnil;
}
#pragma GCC diagnostic pop

static void
add_driver_options (void)
{
  Lisp_Object options = Fsymbol_value (Qnative_comp_driver_options);

#if defined (LIBGCCJIT_HAVE_gcc_jit_context_add_driver_option)
  load_gccjit_if_necessary (true);
  if (!NILP (Fcomp_native_driver_options_effective_p ()))
    FOR_EACH_TAIL (options)
      gcc_jit_context_add_driver_option (comp.ctxt,
					 /* FIXME: Need to encode
					    this, but how? either
					    ENCODE_FILE or
					    ENCODE_SYSTEM.  */
					 SSDATA (XCAR (options)));
#endif
  if (CONSP (options))
    xsignal1 (Qnative_compiler_error,
	      build_string ("Customizing native compiler options"
			    " via `comp-native-driver-options' is"
			    " only available on libgccjit version 9"
			    " and above."));

  /* Captured `comp-native-driver-options' because file-local.  */
#if defined (LIBGCCJIT_HAVE_gcc_jit_context_add_driver_option)
  options = comp.driver_options;
  if (!NILP (Fcomp_native_driver_options_effective_p ()))
    FOR_EACH_TAIL (options)
      gcc_jit_context_add_driver_option (comp.ctxt,
					 /* FIXME: Need to encode
					    this, but how? either
					    ENCODE_FILE or
					    ENCODE_SYSTEM.  */
					 SSDATA (XCAR (options)));
#endif
}

static void
add_compiler_options (void)
{
  Lisp_Object options = Fsymbol_value (Qnative_comp_compiler_options);

#if defined (LIBGCCJIT_HAVE_gcc_jit_context_add_command_line_option)
  load_gccjit_if_necessary (true);
  if (!NILP (Fcomp_native_compiler_options_effective_p ()))
    FOR_EACH_TAIL (options)
        gcc_jit_context_add_command_line_option (comp.ctxt,
                                                 /* FIXME: Need to encode
                                                    this, but how? either
                                                    ENCODE_FILE or
                                                    ENCODE_SYSTEM.  */
                                                 SSDATA (XCAR (options)));
#endif
  if (CONSP (options))
    xsignal1 (Qnative_compiler_error,
	      build_string ("Customizing native compiler options"
			    " via `comp-native-compiler-options' is"
			    " only available on libgccjit version 9"
			    " and above."));

  /* Captured `comp-native-compiler-options' because file-local.  */
#if defined (LIBGCCJIT_HAVE_gcc_jit_context_add_command_line_option)
  options = comp.compiler_options;
  if (!NILP (Fcomp_native_compiler_options_effective_p ()))
    FOR_EACH_TAIL (options)
      gcc_jit_context_add_command_line_option (comp.ctxt,
                                               /* FIXME: Need to encode
                                                  this, but how? either
                                                  ENCODE_FILE or
                                                  ENCODE_SYSTEM.  */
                                               SSDATA (XCAR (options)));
#endif
}

DEFUN ("comp--compile-ctxt-to-file", Fcomp__compile_ctxt_to_file,
       Scomp__compile_ctxt_to_file,
       1, 1, 0,
       doc: /* Compile the current context as native code to file FILENAME.  */)
  (Lisp_Object filename)
{
  load_gccjit_if_necessary (true);

  CHECK_STRING (filename);
  Lisp_Object base_name = Fsubstring (filename, Qnil, make_fixnum (-4));
  Lisp_Object ebase_name = ENCODE_FILE (base_name);

  comp.func_relocs_local = NULL;

#ifdef WINDOWSNT
  ebase_name = ansi_encode_filename (ebase_name);
  /* Tell libgccjit the actual file name of the loaded DLL, otherwise
     it will use 'libgccjit.so', which is not useful.  */
  Lisp_Object libgccjit_loaded_from = Fget (Qgccjit, QCloaded_from);
  Lisp_Object libgccjit_fname;

  if (CONSP (libgccjit_loaded_from))
    {
      /* Use the absolute file name if available, otherwise the name
	 we looked for in w32_delayed_load.  */
      libgccjit_fname = XCDR (libgccjit_loaded_from);
      if (NILP (libgccjit_fname))
	libgccjit_fname = XCAR (libgccjit_loaded_from);
      /* Must encode to ANSI, as libgccjit will not be able to handle
	 UTF-8 encoded file names.  */
      libgccjit_fname = ENCODE_FILE (libgccjit_fname);
      libgccjit_fname = ansi_encode_filename (libgccjit_fname);
      gcc_jit_context_set_str_option (comp.ctxt, GCC_JIT_STR_OPTION_PROGNAME,
				      SSDATA (libgccjit_fname));
    }
  else	/* this should never happen */
    gcc_jit_context_set_str_option (comp.ctxt, GCC_JIT_STR_OPTION_PROGNAME,
				    "libgccjit-0.dll");
#endif

  comp.speed = XFIXNUM (CALL1I (comp-ctxt-speed, Vcomp_ctxt));
  eassert (comp.speed < INT_MAX);
  comp.debug = XFIXNUM (CALL1I (comp-ctxt-debug, Vcomp_ctxt));
  eassert (comp.debug < INT_MAX);
  comp.driver_options = CALL1I (comp-ctxt-driver-options, Vcomp_ctxt);
  comp.compiler_options = CALL1I (comp-ctxt-compiler-options, Vcomp_ctxt);

  if (comp.debug)
      gcc_jit_context_set_bool_option (comp.ctxt,
				       GCC_JIT_BOOL_OPTION_DEBUGINFO,
				       1);
  if (comp.debug >= 3)
    {
      logfile = emacs_fopen ("libgccjit.log", "w");
      gcc_jit_context_set_logfile (comp.ctxt,
				   logfile,
				   0, 0);
      gcc_jit_context_set_bool_option (comp.ctxt,
				       GCC_JIT_BOOL_OPTION_KEEP_INTERMEDIATES,
				       1);
      gcc_jit_context_set_bool_option (comp.ctxt,
				       GCC_JIT_BOOL_OPTION_DUMP_EVERYTHING,
				       1);
    }

  gcc_jit_context_set_int_option (comp.ctxt,
				  GCC_JIT_INT_OPTION_OPTIMIZATION_LEVEL,
				  comp.speed < 0 ? 0
				  : (comp.speed > 3 ? 3 : comp.speed));

  /* On MacOS set a unique dylib ID.  */
#if defined (LIBGCCJIT_HAVE_gcc_jit_context_add_driver_option)	\
  && defined (DARWIN_OS)
  gcc_jit_context_add_driver_option (comp.ctxt, "-install_name");
  gcc_jit_context_add_driver_option (
         comp.ctxt, SSDATA (Ffile_name_nondirectory (filename)));
#endif

  comp.d_default_idx =
    CALL1I (comp-data-container-idx, CALL1I (comp-ctxt-d-default, Vcomp_ctxt));
  comp.d_impure_idx =
    CALL1I (comp-data-container-idx, CALL1I (comp-ctxt-d-impure, Vcomp_ctxt));
  comp.d_ephemeral_idx =
    CALL1I (comp-data-container-idx, CALL1I (comp-ctxt-d-ephemeral, Vcomp_ctxt));

  emit_ctxt_code ();

  /* Define inline functions.  */
  define_CAR_CDR ();
  define_PSEUDOVECTORP ();
  define_GET_SYMBOL_WITH_POSITION ();
  define_CHECK_TYPE ();
  define_SYMBOL_WITH_POS_SYM ();
  define_CHECK_IMPURE ();
  define_bool_to_lisp_obj ();
  define_setcar_setcdr ();
  define_add1_sub1 ();
  define_negate ();
  define_maybe_gc_or_quit ();

  struct Lisp_Hash_Table *func_h =
    XHASH_TABLE (CALL1I (comp-ctxt-funcs-h, Vcomp_ctxt));
  for (ptrdiff_t i = 0; i < HASH_TABLE_SIZE (func_h); i++)
    if (!BASE_EQ (HASH_VALUE (func_h, i), Qunbound))
      declare_function (HASH_VALUE (func_h, i));
  /* Compile all functions. Can't be done before because the
     relocation structs has to be already defined.  */
  for (ptrdiff_t i = 0; i < HASH_TABLE_SIZE (func_h); i++)
    if (!BASE_EQ (HASH_VALUE (func_h, i), Qunbound))
      compile_function (HASH_VALUE (func_h, i));

  /* Work around bug#46495 (GCC PR99126). */
#if defined (WIDE_EMACS_INT)						\
  && defined (LIBGCCJIT_HAVE_gcc_jit_context_add_command_line_option)
  Lisp_Object version = Fcomp_libgccjit_version ();
  if (NILP (version)
      || XFIXNUM (XCAR (version)) < 11)
    gcc_jit_context_add_command_line_option (comp.ctxt,
					     "-fdisable-tree-isolate-paths");
#endif

  add_compiler_options ();
  add_driver_options ();

  if (comp.debug > 1)
      gcc_jit_context_dump_to_file (comp.ctxt,
				    format_string ("%s.c", SSDATA (ebase_name)),
				    1);
  if (!NILP (Fsymbol_value (Qcomp_libgccjit_reproducer)))
    gcc_jit_context_dump_reproducer_to_file (
      comp.ctxt,
      format_string ("%s_libgccjit_repro.c", SSDATA (ebase_name)));

  Lisp_Object tmp_file =
    Fmake_temp_file_internal (base_name, Qnil, build_string (".eln.tmp"), Qnil);
  Lisp_Object encoded_tmp_file = ENCODE_FILE (tmp_file);
#ifdef WINDOWSNT
  encoded_tmp_file = ansi_encode_filename (encoded_tmp_file);
#endif
  gcc_jit_context_compile_to_file (comp.ctxt,
				   GCC_JIT_OUTPUT_KIND_DYNAMIC_LIBRARY,
				   SSDATA (encoded_tmp_file));

  const char *err =  gcc_jit_context_get_first_error (comp.ctxt);
  if (err)
    xsignal3 (Qnative_ice,
	      build_string ("failed to compile"),
	      filename,
	      build_string (err));

  CALL1I (comp-clean-up-stale-eln, filename);
  CALL2I (comp-delete-or-replace-file, filename, tmp_file);

  return filename;
}

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Waddress"
DEFUN ("comp-libgccjit-version", Fcomp_libgccjit_version,
       Scomp_libgccjit_version, 0, 0, 0,
       doc: /* Return libgccjit version in use.

The return value has the form (MAJOR MINOR PATCHLEVEL) or nil if
unknown (before GCC version 10).  */)
  (void)
{
#if defined (LIBGCCJIT_HAVE_gcc_jit_version)
  load_gccjit_if_necessary (true);

  return gcc_jit_version_major
    ? list3 (make_fixnum (gcc_jit_version_major ()),
	     make_fixnum (gcc_jit_version_minor ()),
	     make_fixnum (gcc_jit_version_patchlevel ()))
    : Qnil;
#else
  return Qnil;
#endif
}
#pragma GCC diagnostic pop

\f
/******************************************************************************/
/* Helper functions called from the run-time.				      */
/* Note: this are all potentially definable directly to gcc and are here just */
/* for laziness. Change this if a performance impact is measured.             */
/******************************************************************************/

static void
helper_unwind_protect (Lisp_Object handler)
{
  /* Support for a function here is new in 24.4.  */
  record_unwind_protect (FUNCTIONP (handler) ? bcall0 : prog_ignore,
			 handler);
}

static Lisp_Object
helper_unbind_n (Lisp_Object n)
{
  return unbind_to (specpdl_ref_add (SPECPDL_INDEX (), -XFIXNUM (n)), Qnil);
}

static void
helper_save_restriction (void)
{
  record_unwind_protect (save_restriction_restore,
			 save_restriction_save ());
}

static bool
helper_PSEUDOVECTOR_TYPEP_XUNTAG (Lisp_Object a, enum pvec_type code)
{
  return PSEUDOVECTOR_TYPEP (XUNTAG (a, Lisp_Vectorlike,
				     union vectorlike_header),
			     code);
}

static struct Lisp_Symbol_With_Pos *
helper_GET_SYMBOL_WITH_POSITION (Lisp_Object a)
{
  if (!SYMBOL_WITH_POS_P (a))
    wrong_type_argument (Qwrong_type_argument, a);
  return XUNTAG (a, Lisp_Vectorlike, struct Lisp_Symbol_With_Pos);
}

\f
/* `native-comp-eln-load-path' clean-up support code.  */

#ifdef WINDOWSNT
static Lisp_Object
return_nil (Lisp_Object arg)
{
  return Qnil;
}

static Lisp_Object
directory_files_matching (Lisp_Object name, Lisp_Object match)
{
  return Fdirectory_files (name, Qt, match, Qnil, Qnil);
}
#endif

/* Windows does not let us delete a .eln file that is currently loaded
   by a process.  The strategy is to rename .eln files into .old.eln
   instead of removing them when this is not possible and clean-up
   `native-comp-eln-load-path' when exiting.

   Any error is ignored because it may be due to the file being loaded
   in another Emacs instance.  */
void
eln_load_path_final_clean_up (void)
{
#ifdef WINDOWSNT
  Lisp_Object dir_tail = Vnative_comp_eln_load_path;
  FOR_EACH_TAIL (dir_tail)
    {
      Lisp_Object files_in_dir =
	internal_condition_case_2 (directory_files_matching,
				   Fexpand_file_name (Vcomp_native_version_dir,
						      XCAR (dir_tail)),
				   build_string ("\\.eln\\.old\\'"),
				   Qt, return_nil);
      FOR_EACH_TAIL (files_in_dir)
	internal_delete_file (XCAR (files_in_dir));
    }
#endif
}

/* This function puts the compilation unit in the
  `Vcomp_loaded_comp_units_h` hashmap.  */
static void
register_native_comp_unit (Lisp_Object comp_u)
{
  Fputhash (
    XNATIVE_COMP_UNIT (comp_u)->file, comp_u, Vcomp_loaded_comp_units_h);
}

\f
/***********************************/
/* Deferred compilation mechanism. */
/***********************************/

/* Queue an asynchronous compilation for the source file defining
   FUNCTION_NAME and perform a late load.

   NOTE: ideally would be nice to move its call simply into Fload but
   we need DEFINITION to guard against function redefinition while
   async compilation happen.  */

void
maybe_defer_native_compilation (Lisp_Object function_name,
				Lisp_Object definition)
{
#if 0
#include <sys/types.h>
#include <unistd.h>
  if (!NILP (function_name) &&
      STRINGP (Vload_true_file_name))
    {
      static FILE *f;
      if (!f)
	{
	  char str[128];
	  sprintf (str, "log_%d", getpid ());
	  f = fopen (str, "w");
	}
      if (!f)
	exit (1);
      fprintf (f, "function %s file %s\n",
	       SSDATA (Fsymbol_name (function_name)),
	       SSDATA (Vload_true_file_name));
      fflush (f);
    }
#endif
  if (!load_gccjit_if_necessary (false))
    return;

  if (!native_comp_deferred_compilation
      || !NILP (Vinhibit_automatic_native_compilation)
      || noninteractive
      || !NILP (Vpurify_flag)
      || !COMPILEDP (definition)
      || !STRINGP (Vload_true_file_name)
      || !suffix_p (Vload_true_file_name, ".elc")
      || !NILP (Fgethash (Vload_true_file_name, V_comp_no_native_file_h, Qnil)))
    return;

  Lisp_Object src =
    concat2 (CALL1I (file-name-sans-extension, Vload_true_file_name),
	     build_pure_c_string (".el"));
  if (NILP (Ffile_exists_p (src)))
    {
      src = concat2 (src, build_pure_c_string (".gz"));
      if (NILP (Ffile_exists_p (src)))
	return;
    }

  Fputhash (function_name, definition, Vcomp_deferred_pending_h);

  /* This is so deferred compilation is able to compile comp
     dependencies breaking circularity.  */
  if (comp__compilable)
    {
      /* Startup is done, comp is usable.  */
      CALL0I (startup--require-comp-safely);
      CALLN (Ffuncall, intern_c_string ("native--compile-async"),
	     src, Qnil, Qlate);
    }
  else
    Vcomp__delayed_sources = Fcons (src, Vcomp__delayed_sources);
}

\f
/**************************************/
/* Functions used to load eln files.  */
/**************************************/

/* Fixup the system eln-cache directory, which is the last entry in
   `native-comp-eln-load-path'.  Argument is a .eln file in that directory.  */
void
fixup_eln_load_path (Lisp_Object eln_filename)
{
  Lisp_Object last_cell = Qnil;
  Lisp_Object tem = Vnative_comp_eln_load_path;
  FOR_EACH_TAIL (tem)
    if (CONSP (tem))
      last_cell = tem;

  const char preloaded[] = "/preloaded/";
  Lisp_Object eln_cache_sys = Ffile_name_directory (eln_filename);
  const char *p_preloaded =
    SSDATA (eln_cache_sys) + SBYTES (eln_cache_sys) - sizeof (preloaded) + 1;
  bool preloaded_p = strcmp (p_preloaded, preloaded) == 0;

  /* One or two directories up...  */
  for (int i = 0; i < (preloaded_p ? 2 : 1); i++)
    eln_cache_sys =
      Ffile_name_directory (Fsubstring_no_properties (eln_cache_sys, Qnil,
						      make_fixnum (-1)));
  Fsetcar (last_cell, eln_cache_sys);
}

typedef char *(*comp_lit_str_func) (void);

/* Deserialize read and return static object.  */
static Lisp_Object
load_static_obj (struct Lisp_Native_Comp_Unit *comp_u, const char *name)
{
  static_obj_t *blob =
    dynlib_sym (comp_u->handle, format_string ("%s_blob", name));
  if (blob)
    /* New blob format.  */
    return Fread (make_string (blob->data, blob->len));

  static_obj_t *(*f)(void) = dynlib_sym (comp_u->handle, name);
  if (!f)
    xsignal1 (Qnative_lisp_file_inconsistent, comp_u->file);

  blob = f ();
  return Fread (make_string (blob->data, blob->len));

}

/* Return false when something is wrong or true otherwise.  */

static bool
check_comp_unit_relocs (struct Lisp_Native_Comp_Unit *comp_u)
{
  dynlib_handle_ptr handle = comp_u->handle;
  Lisp_Object *data_relocs = dynlib_sym (handle, DATA_RELOC_SYM);
  Lisp_Object *data_imp_relocs = dynlib_sym (handle, DATA_RELOC_IMPURE_SYM);

  EMACS_INT d_vec_len = XFIXNUM (Flength (comp_u->data_vec));
  for (ptrdiff_t i = 0; i < d_vec_len; i++)
    if (!EQ (data_relocs[i],  AREF (comp_u->data_vec, i)))
      return false;

  d_vec_len = XFIXNUM (Flength (comp_u->data_impure_vec));
  for (ptrdiff_t i = 0; i < d_vec_len; i++)
    {
      Lisp_Object x = data_imp_relocs[i];
      if (EQ (x, Qlambda_fixup))
	return false;
      else if (SUBR_NATIVE_COMPILEDP (x))
	{
	  if (NILP (Fgethash (x, comp_u->lambda_gc_guard_h, Qnil)))
	    return false;
	}
      else if (!EQ (data_imp_relocs[i], AREF (comp_u->data_impure_vec, i)))
	return false;
    }
  return true;
}

static void
unset_cu_load_ongoing (Lisp_Object comp_u)
{
  XNATIVE_COMP_UNIT (comp_u)->load_ongoing = false;
}

Lisp_Object
load_comp_unit (struct Lisp_Native_Comp_Unit *comp_u, bool loading_dump,
		bool late_load)
{
  Lisp_Object res = Qnil;
  dynlib_handle_ptr handle = comp_u->handle;
  Lisp_Object comp_u_lisp_obj;
  XSETNATIVE_COMP_UNIT (comp_u_lisp_obj, comp_u);

  Lisp_Object *saved_cu = dynlib_sym (handle, COMP_UNIT_SYM);
  if (!saved_cu)
    xsignal1 (Qnative_lisp_file_inconsistent, comp_u->file);
  comp_u->loaded_once = !NILP (*saved_cu);
  Lisp_Object *data_eph_relocs =
    dynlib_sym (handle, DATA_RELOC_EPHEMERAL_SYM);

  /* While resurrecting from an image dump loading more than once the
     same compilation unit does not make any sense.  */
  eassert (!(loading_dump && comp_u->loaded_once));

  if (comp_u->loaded_once)
    /* 'dlopen' returns the same handle when trying to load two times
       the same shared.  In this case touching 'd_reloc' etc leads to
       fails in case a frame with a reference to it in a live reg is
       active (native-comp-speed > 0).

       We must *never* mess with static pointers in an already loaded
       eln.  */
    {
      comp_u_lisp_obj = *saved_cu;
      comp_u = XNATIVE_COMP_UNIT (comp_u_lisp_obj);
      comp_u->loaded_once = true;
    }
  else
    *saved_cu = comp_u_lisp_obj;

  /* Once we are sure to have the right compilation unit we want to
     identify is we have at least another load active on it.  */
  bool recursive_load = comp_u->load_ongoing;
  comp_u->load_ongoing = true;
  specpdl_ref count = SPECPDL_INDEX ();
  if (!recursive_load)
    record_unwind_protect (unset_cu_load_ongoing, comp_u_lisp_obj);

  freloc_check_fill ();

  Lisp_Object (*top_level_run)(Lisp_Object)
    = dynlib_sym (handle,
		  late_load ? "late_top_level_run" : "top_level_run");

  /* Always set data_imp_relocs pointer in the compilation unit (in can be
     used in 'dump_do_dump_relocation').  */
  comp_u->data_imp_relocs = dynlib_sym (handle, DATA_RELOC_IMPURE_SYM);

  if (!comp_u->loaded_once)
    {
      struct thread_state ***current_thread_reloc =
	dynlib_sym (handle, CURRENT_THREAD_RELOC_SYM);
      bool **f_symbols_with_pos_enabled_reloc =
	dynlib_sym (handle, F_SYMBOLS_WITH_POS_ENABLED_RELOC_SYM);
      void **pure_reloc = dynlib_sym (handle, PURE_RELOC_SYM);
      Lisp_Object *data_relocs = dynlib_sym (handle, DATA_RELOC_SYM);
      Lisp_Object *data_imp_relocs = comp_u->data_imp_relocs;
      void **freloc_link_table = dynlib_sym (handle, FUNC_LINK_TABLE_SYM);

      if (!(current_thread_reloc
	    && f_symbols_with_pos_enabled_reloc
	    && pure_reloc
	    && data_relocs
	    && data_imp_relocs
	    && data_eph_relocs
	    && freloc_link_table
	    && top_level_run)
	  || NILP (Fstring_equal (load_static_obj (comp_u, LINK_TABLE_HASH_SYM),
				  Vcomp_abi_hash)))
	xsignal1 (Qnative_lisp_file_inconsistent, comp_u->file);

      *current_thread_reloc = &current_thread;
      *f_symbols_with_pos_enabled_reloc = &symbols_with_pos_enabled;
      *pure_reloc = pure;

      /* Imported functions.  */
      *freloc_link_table = freloc.link_table;

      /* Imported data.  */
      if (!loading_dump)
	{
	  comp_u->optimize_qualities =
	    load_static_obj (comp_u, TEXT_OPTIM_QLY_SYM);
	  comp_u->data_vec = load_static_obj (comp_u, TEXT_DATA_RELOC_SYM);
	  comp_u->data_impure_vec =
	    load_static_obj (comp_u, TEXT_DATA_RELOC_IMPURE_SYM);

	  if (!NILP (Vpurify_flag))
	    /* Non impure can be copied into pure space.  */
	    comp_u->data_vec = Fpurecopy (comp_u->data_vec);
	}

      EMACS_INT d_vec_len = XFIXNUM (Flength (comp_u->data_vec));
      for (EMACS_INT i = 0; i < d_vec_len; i++)
	data_relocs[i] = AREF (comp_u->data_vec, i);

      d_vec_len = XFIXNUM (Flength (comp_u->data_impure_vec));
      for (EMACS_INT i = 0; i < d_vec_len; i++)
	data_imp_relocs[i] = AREF (comp_u->data_impure_vec, i);
    }

  if (!loading_dump)
    {
      /* Note: data_ephemeral_vec is not GC protected except than by
	 this function frame.  After this functions will be
	 deactivated GC will be free to collect it, but it MUST
	 survive till 'top_level_run' has finished his job.  We store
	 into the ephemeral allocation class only objects that we know
	 are necessary exclusively during the first load.  Once these
	 are collected we don't have to maintain them in the heap
	 forever.  */
      Lisp_Object volatile data_ephemeral_vec = Qnil;
      /* In case another load of the same CU is active on the stack
	 all ephemeral data is hold by that frame.  Re-writing
	 'data_ephemeral_vec' would be not only a waste of cycles but
	 more importantly would lead to crashes if the contained data
	 is not cons hashed.  */
      if (!recursive_load)
	{
	  data_ephemeral_vec =
	    load_static_obj (comp_u, TEXT_DATA_RELOC_EPHEMERAL_SYM);

	  EMACS_INT d_vec_len = XFIXNUM (Flength (data_ephemeral_vec));
	  for (EMACS_INT i = 0; i < d_vec_len; i++)
	    data_eph_relocs[i] = AREF (data_ephemeral_vec, i);
	}
      /* Executing this will perform all the expected environment
	 modifications.  */
      res = top_level_run (comp_u_lisp_obj);
      /* Make sure data_ephemeral_vec still exists after top_level_run has run.
	 Guard against sibling call optimization (or any other).  */
      data_ephemeral_vec = data_ephemeral_vec;
      eassert (check_comp_unit_relocs (comp_u));
    }

  if (!recursive_load)
    /* Clean-up the load ongoing flag in case.  */
    unbind_to (count, Qnil);

  register_native_comp_unit (comp_u_lisp_obj);

  return res;
}

void
unload_comp_unit (struct Lisp_Native_Comp_Unit *cu)
{
  if (cu->handle == NULL)
    return;

  Lisp_Object *saved_cu = dynlib_sym (cu->handle, COMP_UNIT_SYM);
  Lisp_Object this_cu;
  XSETNATIVE_COMP_UNIT (this_cu, cu);
  if (EQ (this_cu, *saved_cu))
    *saved_cu = Qnil;
  dynlib_close (cu->handle);
}

Lisp_Object
native_function_doc (Lisp_Object function)
{
  struct Lisp_Native_Comp_Unit *cu =
    XNATIVE_COMP_UNIT (Fsubr_native_comp_unit (function));

  if (NILP (cu->data_fdoc_v))
    cu->data_fdoc_v = load_static_obj (cu, TEXT_FDOC_SYM);
  if (!VECTORP (cu->data_fdoc_v))
    xsignal2 (Qnative_lisp_file_inconsistent, cu->file,
	      build_string ("missing documentation vector"));
  return AREF (cu->data_fdoc_v, XSUBR (function)->doc);
}

static Lisp_Object
make_subr (Lisp_Object symbol_name, Lisp_Object minarg, Lisp_Object maxarg,
	   Lisp_Object c_name, Lisp_Object type, Lisp_Object doc_idx,
	   Lisp_Object intspec, Lisp_Object command_modes, Lisp_Object comp_u)
{
  struct Lisp_Native_Comp_Unit *cu = XNATIVE_COMP_UNIT (comp_u);
  dynlib_handle_ptr handle = cu->handle;
  if (!handle)
    xsignal0 (Qwrong_register_subr_call);

  void *func = dynlib_sym (handle, SSDATA (c_name));
  eassert (func);
  union Aligned_Lisp_Subr *x =
    (union Aligned_Lisp_Subr *) allocate_pseudovector (
				  VECSIZE (union Aligned_Lisp_Subr),
				  0, VECSIZE (union Aligned_Lisp_Subr),
				  PVEC_SUBR);
  if (CONSP (minarg))
    {
      /* Dynamic code.  */
#ifdef HAVE_NATIVE_COMP
      x->s.lambda_list = maxarg;
#endif
      maxarg = XCDR (minarg);
      minarg = XCAR (minarg);
    }
  else
    {
#ifdef HAVE_NATIVE_COMP
      x->s.lambda_list = Qnil;
#endif
    }
  x->s.function.a0 = func;
  x->s.min_args = XFIXNUM (minarg);
  x->s.max_args = FIXNUMP (maxarg) ? XFIXNUM (maxarg) : MANY;
  x->s.symbol_name = xstrdup (SSDATA (symbol_name));
  x->s.intspec.native = intspec;
  x->s.command_modes = command_modes;
  x->s.doc = XFIXNUM (doc_idx);
#ifdef HAVE_NATIVE_COMP
  x->s.native_comp_u = comp_u;
  x->s.native_c_name = xstrdup (SSDATA (c_name));
  x->s.type = type;
#endif
  Lisp_Object tem;
  XSETSUBR (tem, &x->s);

  return tem;
}

DEFUN ("comp--register-lambda", Fcomp__register_lambda, Scomp__register_lambda,
       7, 7, 0,
       doc: /* Register anonymous lambda.
This gets called by top_level_run during the load phase.  */)
  (Lisp_Object reloc_idx, Lisp_Object c_name, Lisp_Object minarg,
   Lisp_Object maxarg, Lisp_Object type, Lisp_Object rest,
   Lisp_Object comp_u)
{
  Lisp_Object doc_idx = FIRST (rest);
  Lisp_Object intspec = SECOND (rest);
  Lisp_Object command_modes = THIRD (rest);

  struct Lisp_Native_Comp_Unit *cu = XNATIVE_COMP_UNIT (comp_u);
  if (cu->loaded_once)
    return Qnil;

  Lisp_Object tem =
    make_subr (c_name, minarg, maxarg, c_name, type, doc_idx, intspec,
	       command_modes, comp_u);

  /* We must protect it against GC because the function is not
     reachable through symbols.  */
  Fputhash (tem, Qt, cu->lambda_gc_guard_h);
  /* This is for fixing up the value in d_reloc while resurrecting
     from dump.  See 'dump_do_dump_relocation'.  */
  eassert (NILP (Fgethash (c_name, cu->lambda_c_name_idx_h, Qnil)));
  Fputhash (c_name, reloc_idx, cu->lambda_c_name_idx_h);
  /* Do the real relocation fixup.  */
  cu->data_imp_relocs[XFIXNUM (reloc_idx)] = tem;

  return tem;
}

DEFUN ("comp--register-subr", Fcomp__register_subr, Scomp__register_subr,
       7, 7, 0,
       doc: /* Register exported subr.
This gets called by top_level_run during the load phase.  */)
  (Lisp_Object name, Lisp_Object c_name, Lisp_Object minarg,
   Lisp_Object maxarg, Lisp_Object type, Lisp_Object rest,
   Lisp_Object comp_u)
{
  Lisp_Object doc_idx = FIRST (rest);
  Lisp_Object intspec = SECOND (rest);
  Lisp_Object command_modes = THIRD (rest);

  Lisp_Object tem =
    make_subr (SYMBOL_NAME (name), minarg, maxarg, c_name, type, doc_idx,
	       intspec, command_modes, comp_u);

  defalias (name, tem);

  return tem;
}

DEFUN ("comp--late-register-subr", Fcomp__late_register_subr,
       Scomp__late_register_subr, 7, 7, 0,
       doc: /* Register exported subr.
This gets called by late_top_level_run during the load phase.  */)
  (Lisp_Object name, Lisp_Object c_name, Lisp_Object minarg,
   Lisp_Object maxarg, Lisp_Object type, Lisp_Object rest,
   Lisp_Object comp_u)
{
  if (!NILP (Fequal (Fsymbol_function (name),
		     Fgethash (name, Vcomp_deferred_pending_h, Qnil))))
    Fcomp__register_subr (name, c_name, minarg, maxarg, type, rest, comp_u);
  Fremhash (name, Vcomp_deferred_pending_h);
  return Qnil;
}

static bool
file_in_eln_sys_dir (Lisp_Object filename)
{
  Lisp_Object eln_sys_dir = Qnil;
  Lisp_Object tmp = Vnative_comp_eln_load_path;
  FOR_EACH_TAIL (tmp)
    eln_sys_dir = XCAR (tmp);
  return !NILP (Fstring_match (Fregexp_quote (Fexpand_file_name (eln_sys_dir,
								 Qnil)),
			       Fexpand_file_name (filename, Qnil),
			       Qnil, Qnil));
}

/* Load related routines.  */
DEFUN ("native-elisp-load", Fnative_elisp_load, Snative_elisp_load, 1, 2, 0,
       doc: /* Load native elisp code FILENAME.
LATE_LOAD has to be non-nil when loading for deferred compilation.  */)
  (Lisp_Object filename, Lisp_Object late_load)
{
  CHECK_STRING (filename);
  if (NILP (Ffile_exists_p (filename)))
    xsignal2 (Qnative_lisp_load_failed, build_string ("file does not exists"),
	      filename);
  struct Lisp_Native_Comp_Unit *comp_u = allocate_native_comp_unit ();
  Lisp_Object encoded_filename = ENCODE_FILE (filename);

  if (!NILP (Fgethash (filename, Vcomp_loaded_comp_units_h, Qnil))
      && !file_in_eln_sys_dir (filename)
      && !NILP (Ffile_writable_p (filename)))
    {
      /* If in this session there was ever a file loaded with this
	 name, rename it before loading, to make sure we always get a
	 new handle!  */
      Lisp_Object tmp_filename =
	Fmake_temp_file_internal (filename, Qnil, build_string (".eln.tmp"),
				  Qnil);
      if (NILP (Ffile_writable_p (tmp_filename)))
	comp_u->handle = dynlib_open_for_eln (SSDATA (encoded_filename));
      else
	{
	  Frename_file (filename, tmp_filename, Qt);
	  comp_u->handle = dynlib_open_for_eln (SSDATA (ENCODE_FILE (tmp_filename)));
	  Frename_file (tmp_filename, filename, Qnil);
	}
    }
  else
    comp_u->handle = dynlib_open_for_eln (SSDATA (encoded_filename));

  if (!comp_u->handle)
    xsignal2 (Qnative_lisp_load_failed, filename,
	      build_string (dynlib_error ()));
  comp_u->file = filename;
  comp_u->data_vec = Qnil;
  comp_u->lambda_gc_guard_h = CALLN (Fmake_hash_table, QCtest, Qeq);
  comp_u->lambda_c_name_idx_h = CALLN (Fmake_hash_table, QCtest, Qequal);
  return load_comp_unit (comp_u, false, !NILP (late_load));
}

#endif /* HAVE_NATIVE_COMP */

DEFUN ("native-comp-available-p", Fnative_comp_available_p,
       Snative_comp_available_p, 0, 0, 0,
       doc: /* Return non-nil if native compilation support is built-in.  */)
  (void)
{
#ifdef HAVE_NATIVE_COMP
  return load_gccjit_if_necessary (false) ? Qt : Qnil;
#else
  return Qnil;
#endif
}

\f
void
syms_of_comp (void)
{
#ifdef HAVE_NATIVE_COMP
  DEFVAR_LISP ("comp--delayed-sources", Vcomp__delayed_sources,
	       doc: /* List of sources to be native-compiled when startup is finished.
For internal use.  */);
  DEFVAR_BOOL ("comp--compilable",
	       comp__compilable,
	       doc: /* Non-nil when comp.el can be native compiled.
For internal use. */);
  /* Compiler control customizes.  */
  DEFVAR_LISP ("inhibit-automatic-native-compilation",
	       Vinhibit_automatic_native_compilation,
	       doc: /* If non-nil, inhibit automatic native compilation of loaded .elc files.

After compilation, each function definition is updated to the native
compiled one.  */);
  Vinhibit_automatic_native_compilation = Qnil;

  DEFVAR_BOOL ("native-comp-deferred-compilation",
	       native_comp_deferred_compilation,
	       doc: /* If non-nil compile loaded .elc files asynchronously.

After compilation, each function definition is updated to the native
compiled one.  */);
  native_comp_deferred_compilation = true;

  DEFSYM (Qnative_comp_speed, "native-comp-speed");
  DEFSYM (Qnative_comp_debug, "native-comp-debug");
  DEFSYM (Qnative_comp_driver_options, "native-comp-driver-options");
  DEFSYM (Qnative_comp_compiler_options, "native-comp-compiler-options");
  DEFSYM (Qcomp_libgccjit_reproducer, "comp-libgccjit-reproducer");

  /* Limple instruction set.  */
  DEFSYM (Qcomment, "comment");
  DEFSYM (Qjump, "jump");
  DEFSYM (Qcall, "call");
  DEFSYM (Qcallref, "callref");
  DEFSYM (Qdirect_call, "direct-call");
  DEFSYM (Qdirect_callref, "direct-callref");
  DEFSYM (Qassume, "assume");
  DEFSYM (Qsetimm, "setimm");
  DEFSYM (Qreturn, "return");
  DEFSYM (Qunreachable, "unreachable");
  DEFSYM (Qcomp_mvar, "comp-mvar");
  DEFSYM (Qcond_jump, "cond-jump");
  DEFSYM (Qphi, "phi");
  /* Ops in use for prologue emission.  */
  DEFSYM (Qset_par_to_local, "set-par-to-local");
  DEFSYM (Qset_args_to_local, "set-args-to-local");
  DEFSYM (Qset_rest_args_to_local, "set-rest-args-to-local");
  DEFSYM (Qinc_args, "inc-args");
  DEFSYM (Qcond_jump_narg_leq, "cond-jump-narg-leq");
  /* Others.  */
  DEFSYM (Qpush_handler, "push-handler");
  DEFSYM (Qpop_handler, "pop-handler");
  DEFSYM (Qfetch_handler, "fetch-handler");
  DEFSYM (Qcondition_case, "condition-case");
  /* call operands.  */
  DEFSYM (Qcatcher, "catcher");
  DEFSYM (Qentry, "entry");
  DEFSYM (Qset_internal, "set_internal");
  DEFSYM (Qrecord_unwind_current_buffer, "record_unwind_current_buffer");
  DEFSYM (Qrecord_unwind_protect_excursion, "record_unwind_protect_excursion");
  DEFSYM (Qhelper_unbind_n, "helper_unbind_n");
  DEFSYM (Qhelper_unwind_protect, "helper_unwind_protect");
  DEFSYM (Qhelper_save_restriction, "helper_save_restriction");
  /* Inliners.  */
  DEFSYM (Qadd1, "1+");
  DEFSYM (Qsub1, "1-");
  DEFSYM (Qconsp, "consp");
  DEFSYM (Qcar, "car");
  DEFSYM (Qcdr, "cdr");
  DEFSYM (Qsetcar, "setcar");
  DEFSYM (Qsetcdr, "setcdr");
  DEFSYM (Qnegate, "negate");
  DEFSYM (Qnumberp, "numberp");
  DEFSYM (Qintegerp, "integerp");
  DEFSYM (Qcomp_maybe_gc_or_quit, "comp-maybe-gc-or-quit");
  DEFSYM (Qsymbol_with_pos_p, "symbol-with-pos-p");

  /* Allocation classes. */
  DEFSYM (Qd_default, "d-default");
  DEFSYM (Qd_impure, "d-impure");
  DEFSYM (Qd_ephemeral, "d-ephemeral");

  /* Others.  */
  DEFSYM (Qcomp, "comp");
  DEFSYM (Qfixnum, "fixnum");
  DEFSYM (Qscratch, "scratch");
  DEFSYM (Qlate, "late");
  DEFSYM (Qlambda_fixup, "lambda-fixup");
  DEFSYM (Qgccjit, "gccjit");
  DEFSYM (Qcomp_subr_trampoline_install, "comp-subr-trampoline-install");
  DEFSYM (Qnative_comp_warning_on_missing_source,
	  "native-comp-warning-on-missing-source");

  /* To be signaled by the compiler.  */
  DEFSYM (Qnative_compiler_error, "native-compiler-error");
  Fput (Qnative_compiler_error, Qerror_conditions,
	pure_list (Qnative_compiler_error, Qerror));
  Fput (Qnative_compiler_error, Qerror_message,
        build_pure_c_string ("Native compiler error"));

  DEFSYM (Qnative_ice, "native-ice");
  Fput (Qnative_ice, Qerror_conditions,
	pure_list (Qnative_ice, Qnative_compiler_error, Qerror));
  Fput (Qnative_ice, Qerror_message,
        build_pure_c_string ("Internal native compiler error"));

  /* By the load machinery.  */
  DEFSYM (Qnative_lisp_load_failed, "native-lisp-load-failed");
  Fput (Qnative_lisp_load_failed, Qerror_conditions,
	pure_list (Qnative_lisp_load_failed, Qerror));
  Fput (Qnative_lisp_load_failed, Qerror_message,
        build_pure_c_string ("Native elisp load failed"));

  DEFSYM (Qnative_lisp_wrong_reloc, "native-lisp-wrong-reloc");
  Fput (Qnative_lisp_wrong_reloc, Qerror_conditions,
	pure_list (Qnative_lisp_wrong_reloc, Qnative_lisp_load_failed, Qerror));
  Fput (Qnative_lisp_wrong_reloc, Qerror_message,
        build_pure_c_string ("Primitive redefined or wrong relocation"));

  DEFSYM (Qwrong_register_subr_call, "wrong-register-subr-call");
  Fput (Qwrong_register_subr_call, Qerror_conditions,
	pure_list (Qwrong_register_subr_call, Qnative_lisp_load_failed, Qerror));
  Fput (Qwrong_register_subr_call, Qerror_message,
        build_pure_c_string ("comp--register-subr can only be called during "
			    "native lisp load phase."));

  DEFSYM (Qnative_lisp_file_inconsistent, "native-lisp-file-inconsistent");
  Fput (Qnative_lisp_file_inconsistent, Qerror_conditions,
	pure_list (Qnative_lisp_file_inconsistent, Qnative_lisp_load_failed, Qerror));
  Fput (Qnative_lisp_file_inconsistent, Qerror_message,
        build_pure_c_string ("eln file inconsistent with current runtime "
			     "configuration, please recompile"));

  defsubr (&Scomp__subr_signature);
  defsubr (&Scomp_el_to_eln_rel_filename);
  defsubr (&Scomp_el_to_eln_filename);
  defsubr (&Scomp_native_driver_options_effective_p);
  defsubr (&Scomp_native_compiler_options_effective_p);
  defsubr (&Scomp__install_trampoline);
  defsubr (&Scomp__init_ctxt);
  defsubr (&Scomp__release_ctxt);
  defsubr (&Scomp__compile_ctxt_to_file);
  defsubr (&Scomp_libgccjit_version);
  defsubr (&Scomp__register_lambda);
  defsubr (&Scomp__register_subr);
  defsubr (&Scomp__late_register_subr);
  defsubr (&Snative_elisp_load);

  staticpro (&comp.exported_funcs_h);
  comp.exported_funcs_h = Qnil;
  staticpro (&comp.imported_funcs_h);
  comp.imported_funcs_h = Qnil;
  staticpro (&comp.func_blocks_h);
  staticpro (&comp.emitter_dispatcher);
  comp.emitter_dispatcher = Qnil;
  staticpro (&loadsearch_re_list);
  loadsearch_re_list = Qnil;

  DEFVAR_LISP ("comp-ctxt", Vcomp_ctxt,
	       doc: /* The compiler context.  */);
  Vcomp_ctxt = Qnil;

  /* FIXME should be initialized but not here...  Plus this don't have
     to be necessarily exposed to lisp but can easy debug for now.  */
  DEFVAR_LISP ("comp-subr-list", Vcomp_subr_list,
	       doc: /* List of all defined subrs.  */);
  DEFVAR_LISP ("comp-abi-hash", Vcomp_abi_hash,
	       doc: /* String signing the .eln files ABI.  */);
  Vcomp_abi_hash = Qnil;
  DEFVAR_LISP ("comp-native-version-dir", Vcomp_native_version_dir,
	       doc: /* Directory in use to disambiguate eln compatibility.  */);
  Vcomp_native_version_dir = Qnil;

  DEFVAR_LISP ("comp-deferred-pending-h", Vcomp_deferred_pending_h,
	       doc: /* Hash table symbol-name -> function-value.
For internal use.  */);
  Vcomp_deferred_pending_h = CALLN (Fmake_hash_table, QCtest, Qeq);

  DEFVAR_LISP ("comp-eln-to-el-h", Vcomp_eln_to_el_h,
	       doc: /* Hash table eln-filename -> el-filename.  */);
  Vcomp_eln_to_el_h = CALLN (Fmake_hash_table, QCtest, Qequal);

  DEFVAR_LISP ("native-comp-eln-load-path", Vnative_comp_eln_load_path,
	       doc: /* List of eln cache directories.

If a directory is non absolute it is assumed to be relative to
`invocation-directory'.
`comp-native-version-dir' value is used as a sub-folder name inside
each eln cache directory.
The last directory of this list is assumed to be the system one.  */);

  /* Temporary value in use for bootstrap.  We can't do better as
     `invocation-directory' is still unset, will be fixed up during
     dump reload.  */
  Vnative_comp_eln_load_path = Fcons (build_string ("../native-lisp/"), Qnil);

  DEFVAR_BOOL ("comp-enable-subr-trampolines", comp_enable_subr_trampolines,
	       doc: /* If non-nil, enable primitive trampoline synthesis.
This makes Emacs respect redefinition or advises of primitive functions
when they are called from Lisp code natively-compiled at `native-comp-speed'
of 2.

By default, this is enabled, and when Emacs sees a redefined or advised
primitive called from natively-compiled Lisp, it generates a trampoline
for it on-the-fly.

Disabling this, when a trampoline for a redefined or advised primitive is
not available from previous compilations, means that such redefinition
or advise will not have effect on calls from natively-compiled Lisp code.
That is, calls to primitives without existing trampolines from
natively-compiled Lisp will behave as if the primitive was called
directly from C.  */);

  DEFVAR_LISP ("comp-installed-trampolines-h", Vcomp_installed_trampolines_h,
	       doc: /* Hash table subr-name -> installed trampoline.
This is used to prevent double trampoline instantiation but also to
protect the trampolines against GC.  */);
  Vcomp_installed_trampolines_h = CALLN (Fmake_hash_table);

  DEFVAR_LISP ("comp-no-native-file-h", V_comp_no_native_file_h,
	       doc: /* Files for which no deferred compilation has to be performed.
These files' compilation should not be deferred because the bytecode
version was explicitly requested by the user during load.
For internal use.  */);
  V_comp_no_native_file_h = CALLN (Fmake_hash_table, QCtest, Qequal);

  DEFVAR_BOOL ("comp-file-preloaded-p", comp_file_preloaded_p,
	       doc: /* When non-nil assume the file being compiled to
be preloaded.  */);

  DEFVAR_LISP ("comp-loaded-comp-units-h", Vcomp_loaded_comp_units_h,
	       doc: /* Hash table recording all loaded compilation units.
file -> CU.  */);
  Vcomp_loaded_comp_units_h =
    CALLN (Fmake_hash_table, QCweakness, Qvalue, QCtest, Qequal);

  Fprovide (intern_c_string ("native-compile"), Qnil);
#endif /* #ifdef HAVE_NATIVE_COMP */

  defsubr (&Snative_comp_available_p);
}
/* Local Variables: */
/* c-file-offsets: ((arglist-intro . +)) */
/* End: */

debug log:

solving 14012634cc ...
found 14012634cc in https://git.savannah.gnu.org/cgit/emacs.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).