From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: guile-devel@gnu.org
Cc: "Ludovic Courtès" <ludo@gnu.org>,
"Maxim Cournoyer" <maxim.cournoyer@gmail.com>
Subject: [PATCH devel 2/6] Work around Guile 3.0.0 miscompilation at -O2.
Date: Thu, 4 Mar 2021 21:35:20 -0500 [thread overview]
Message-ID: <20210305023524.15317-2-maxim.cournoyer@gmail.com> (raw)
In-Reply-To: <20210305023524.15317-1-maxim.cournoyer@gmail.com>
From: Ludovic Courtès <ludo@gnu.org>
This bug would cause the test suite to hang and fully use one CPU core
and slowly consume all the memory.
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
---
src/md5.scm | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/md5.scm b/src/md5.scm
index c30ef2c..48dfa63 100644
--- a/src/md5.scm
+++ b/src/md5.scm
@@ -68,8 +68,10 @@ referenced C implementation into Scheme.
;; Some math basics.
-(define f-add +)
-(define f-ash ash)
+;; Work around miscompilation on Guile 3 at -O2:
+;; <https://bugs.gnu.org/39251>.
+(define f-add (@ (guile) +)) ;(define f-add +)
+(define f-ash (@ (guile) ash)) ;(define f-ash ash)
(define (+ . args)
(modulo (apply f-add args) #x100000000))
--
2.30.1
next prev parent reply other threads:[~2021-03-05 2:35 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-05 2:14 [PATCH devel 0/6] Parameterize the parent constraints in htmlprag & varia Maxim Cournoyer
2021-03-05 2:35 ` [PATCH devel 1/6] Revert "When using guile-3.0, compile src/md5.scm using -O0" Maxim Cournoyer
2021-03-05 2:35 ` Maxim Cournoyer [this message]
2021-03-05 2:35 ` [PATCH devel 3/6] Add a HACK file Maxim Cournoyer
2021-03-05 2:35 ` [PATCH devel 4/6] htmlprag: Allow users to parameterize the parent constraints Maxim Cournoyer
2021-03-05 2:35 ` [PATCH devel 5/6] build: Add support for cross-compilation Maxim Cournoyer
2021-03-05 2:35 ` [PATCH devel 6/6] configure.ac: Standardize default installation directory Maxim Cournoyer
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