From: Aurelien Jarno <aurelien@aurel32.net>
To: libc-stable@sourceware.org
Cc: Aurelien Jarno <aurelien@aurel32.net>,
Noah Goldstein <goldstein.w.n@gmail.com>
Subject: [COMMITTED 2.34 1/8] x86: include BMI1 and BMI2 in x86-64-v3 level
Date: Tue, 4 Oct 2022 00:02:12 +0200 [thread overview]
Message-ID: <20221003220219.3297150-1-aurelien@aurel32.net> (raw)
The "System V Application Binary Interface AMD64 Architecture Processor
Supplement" mandates the BMI1 and BMI2 CPU features for the x86-64-v3
level.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
(cherry picked from commit b80f16adbd979831bf25ea491e1261e81885c2b6)
---
sysdeps/x86/get-isa-level.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sysdeps/x86/get-isa-level.h b/sysdeps/x86/get-isa-level.h
index aa80f56ca6..785c25a835 100644
--- a/sysdeps/x86/get-isa-level.h
+++ b/sysdeps/x86/get-isa-level.h
@@ -47,6 +47,8 @@ get_isa_level (const struct cpu_features *cpu_features)
isa_level |= GNU_PROPERTY_X86_ISA_1_V2;
if (CPU_FEATURE_USABLE_P (cpu_features, AVX)
&& CPU_FEATURE_USABLE_P (cpu_features, AVX2)
+ && CPU_FEATURE_USABLE_P (cpu_features, BMI1)
+ && CPU_FEATURE_USABLE_P (cpu_features, BMI2)
&& CPU_FEATURE_USABLE_P (cpu_features, F16C)
&& CPU_FEATURE_USABLE_P (cpu_features, FMA)
&& CPU_FEATURE_USABLE_P (cpu_features, LZCNT)
--
2.35.1
next reply other threads:[~2022-10-03 22:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-03 22:02 Aurelien Jarno [this message]
2022-10-03 22:02 ` [COMMITTED 2.34 2/8] x86-64: Require BMI2 for AVX2 str(n)casecmp implementations Aurelien Jarno
2022-10-03 22:02 ` [COMMITTED 2.34 3/8] x86-64: Require BMI2 for AVX2 strcmp implementation Aurelien Jarno
2022-10-03 22:02 ` [COMMITTED 2.34 4/8] x86-64: Require BMI2 for AVX2 strncmp implementation Aurelien Jarno
2022-10-03 22:02 ` [COMMITTED 2.34 5/8] x86-64: Require BMI2 for AVX2 wcs(n)cmp implementations Aurelien Jarno
2022-10-03 22:02 ` [COMMITTED 2.34 6/8] x86-64: Require BMI2 for AVX2 (raw|w)memchr implementations Aurelien Jarno
2022-10-03 22:02 ` [COMMITTED 2.34 7/8] x86-64: Require BMI2 and LZCNT for AVX2 memrchr implementation Aurelien Jarno
2022-10-03 22:02 ` [COMMITTED 2.34 8/8] x86-64: Require BMI1/BMI2 for AVX2 strrchr and wcsrchr implementations Aurelien Jarno
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20221003220219.3297150-1-aurelien@aurel32.net \
--to=aurelien@aurel32.net \
--cc=goldstein.w.n@gmail.com \
--cc=libc-stable@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
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).