From: Efraim Flashner <efraim@flashner.co.il>
To: 64188@debbugs.gnu.org
Cc: "Efraim Flashner" <efraim@flashner.co.il>,
"Christopher Baines" <mail@cbaines.net>,
"Josselin Poiret" <dev@jpoiret.xyz>,
"Ludovic Courtès" <ludo@gnu.org>,
"Mathieu Othacehe" <othacehe@gnu.org>,
"Ricardo Wurmus" <rekado@elephly.net>,
"Simon Tournier" <zimon.toutoune@gmail.com>,
"Tobias Geerinckx-Rice" <me@tobias.gr>
Subject: [bug#64188] [PATCH v2 5/7] guix: cpu: Add gcc-architecture->micro-architecture-level mapping.
Date: Mon, 26 Jun 2023 15:38:41 +0300 [thread overview]
Message-ID: <daf0aa1f5bf1cc992a49e67e09cd3be815826067.1687781377.git.efraim@flashner.co.il> (raw)
In-Reply-To: <cover.1687781377.git.efraim@flashner.co.il>
* guix/cpu.scm (gcc-architecture->micro-architecture-level): New
variable.
---
guix/cpu.scm | 24 +++++++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/guix/cpu.scm b/guix/cpu.scm
index 30cd860a19..29ad883584 100644
--- a/guix/cpu.scm
+++ b/guix/cpu.scm
@@ -32,7 +32,8 @@ (define-module (guix cpu)
cpu-model
cpu-flags
- cpu->gcc-architecture))
+ cpu->gcc-architecture
+ gcc-architecture->micro-architecture-level))
;;; Commentary:
;;;
@@ -283,3 +284,24 @@ (define (cpu->micro-architecture-level cpu)
(architecture
;; TODO: More architectures
architecture)))
+
+(define (gcc-architecture->micro-architecture-level gcc-architecture)
+ "Return a matching psABI micro-architecture, allowing optimizations for x86_64
+CPUs for compilers which don't allow for more focused optimizing."
+ ;; Matching gcc-architectures isn't an easy task, with the rule-of-thumb being
+ ;; 'Haswell and higher' qualify for x86_64-v3.
+ ;; https://gitlab.com/x86-psABIs/x86-64-ABI/-/blob/master/x86-64-ABI/low-level-sys-info.tex
+ (match gcc-architecture
+ ((or "grandridge" "graniterapids" "sierraforest" "tigerlake"
+ "sapphirerapids" "cooperlake" "icelake-server" "icelake-client"
+ "cannonlake" "knm" "knl" "skylake-avx512" "alderlake" "skylake"
+ "broadwell" "haswell"
+ "znver4" "znver3" "znver2" "znver1" "bdver4")
+ "x86_64-v3")
+ ((or "sandybridge" "tremont" "goldmont-plus" "goldmont" "silvermont"
+ "nehalem" "bonnell" "core2"
+ "btver2" "athalon" "k8-sse3" "k8" "bdver3" "bdver2" "bdver1" "btver1"
+ "amdfam10"
+ "lujiazui" "x86-64")
+ "x86_64-v1")
+ (_ gcc-architecture)))
--
Efraim Flashner <efraim@flashner.co.il> רנשלפ םירפא
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next prev parent reply other threads:[~2023-06-26 12:46 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-20 7:48 [bug#64188] [PATCH 0/8] More package tuning Efraim Flashner
2023-06-20 7:51 ` [bug#64188] [PATCH 1/8] gnu: %gcc-11-x86_64-micro-architectures: Add generic options Efraim Flashner
2023-06-25 20:49 ` [bug#64188] [PATCH 0/8] More package tuning Ludovic Courtès
2023-06-20 7:51 ` [bug#64188] [PATCH 2/8] guix: cpu: Add inexact CPU matching Efraim Flashner
2023-06-20 7:51 ` [bug#64188] [PATCH 3/8] guix: cpu: Rewrite fallback for x86_64 cpu->gcc-architecture Efraim Flashner
2023-06-20 7:51 ` [bug#64188] [PATCH 4/8] guix: cpu: Refactor cpu->gcc-architecture Efraim Flashner
2023-06-20 7:51 ` [bug#64188] [PATCH 5/8] gnu: go: Add CPU tuning targets Efraim Flashner
2023-06-20 7:51 ` [bug#64188] [PATCH 6/8] transformations: Allow tuning go packages Efraim Flashner
2023-06-25 20:52 ` [bug#64188] [PATCH 0/8] More package tuning Ludovic Courtès
2023-06-26 8:34 ` Efraim Flashner
2023-07-13 15:27 ` Ludovic Courtès
2023-07-17 12:02 ` Efraim Flashner
2023-07-17 15:41 ` Ludovic Courtès
2023-07-18 11:17 ` Efraim Flashner
2023-07-19 8:39 ` Josselin Poiret via Guix-patches via
2023-08-07 7:33 ` Ludovic Courtès
2023-08-21 16:54 ` bug#64188: " Ludovic Courtès
2023-06-20 7:51 ` [bug#64188] [PATCH 7/8] guix: cpu: Add gcc-architecture->generic-architecture mapping Efraim Flashner
2023-06-25 20:54 ` [bug#64188] [PATCH 0/8] More package tuning Ludovic Courtès
2023-06-26 8:34 ` Efraim Flashner
2023-06-20 7:51 ` [bug#64188] [PATCH 8/8] transformations: Allow autotuning for go packages Efraim Flashner
2023-06-25 20:47 ` [bug#64188] [PATCH 0/8] More package tuning Ludovic Courtès
2023-06-26 8:34 ` Efraim Flashner
2023-06-26 12:38 ` [bug#64188] [PATCH v2 0/7] " Efraim Flashner
2023-06-26 12:38 ` [bug#64188] [PATCH v2 1/7] gnu: %gcc-11-x86_64-micro-architectures: Add psabi entries Efraim Flashner
2023-06-26 12:38 ` [bug#64188] [PATCH v2 2/7] guix: cpu: Add generalized CPU matching Efraim Flashner
2023-06-26 12:38 ` [bug#64188] [PATCH v2 3/7] guix: cpu: Rewrite fallback for x86_64 cpu->gcc-architecture Efraim Flashner
2023-06-26 12:38 ` [bug#64188] [PATCH v2 4/7] guix: cpu: Refactor cpu->gcc-architecture Efraim Flashner
2023-06-26 12:38 ` Efraim Flashner [this message]
2023-06-26 12:38 ` [bug#64188] [PATCH v2 6/7] gnu: go: Add CPU tuning targets Efraim Flashner
2023-06-26 12:38 ` [bug#64188] [PATCH v2 7/7] transformations: Allow tuning go packages Efraim Flashner
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