public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/94962] Suboptimal AVX2 code for _mm256_zextsi128_si256(_mm_set1_epi8(-1))
Date: Fri, 23 Sep 2022 05:29:28 +0000 [thread overview]
Message-ID: <bug-94962-4-CZVv6E3aBV@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-94962-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94962
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by hongtao Liu <liuhongt@gcc.gnu.org>:
https://gcc.gnu.org/g:a282f086ef26d90e9785e992cd09a0d118b24695
commit r13-2804-ga282f086ef26d90e9785e992cd09a0d118b24695
Author: Hu, Lin1 <lin1.hu@intel.com>
Date: Tue Sep 13 16:28:54 2022 +0800
i386: Optimize code generation of
__mm256_zextsi128_si256(__mm_set1_epi8(-1))
gcc/ChangeLog:
PR target/94962
* config/i386/constraints.md (BH): New define_constraint.
* config/i386/i386.cc (standard_sse_constant_p): Add return
3/4 when operand matches new predicate.
(standard_sse_constant_opcode): Add new alternative branch to
return "vpcmpeqd".
* config/i386/predicates.md
(vector_all_ones_zero_extend_half_operand): New define_predicate.
(vector_all_ones_zero_extend_quarter_operand): Ditto.
* config/i386/sse.md: Add constraint to insn "mov<mode>_internal".
gcc/testsuite/ChangeLog:
PR target/94962
* gcc.target/i386/avx256-unaligned-load-1.c: Modify test.
* gcc.target/i386/avx256-unaligned-store-1.c: Ditto.
* gcc.target/i386/avx256-unaligned-store-2.c: Ditto.
* gcc.target/i386/avx256-unaligned-store-3.c: Ditto.
* gcc.target/i386/pr94962-1.c: New test.
* gcc.target/i386/pr94962-2.c: Ditto.
* gcc.target/i386/pr94962-3.c: Ditto.
* gcc.target/i386/pr94962-4.c: Ditto.
next prev parent reply other threads:[~2022-09-23 5:29 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 21:41 [Bug tree-optimization/94962] New: " nemo@self-evident.org
2020-05-18 8:41 ` [Bug target/94962] " crazylht at gmail dot com
2020-05-18 9:37 ` jakub at gcc dot gnu.org
2020-05-18 9:55 ` crazylht at gmail dot com
2020-05-18 10:01 ` crazylht at gmail dot com
2020-05-18 15:43 ` nemo@self-evident.org
2020-05-19 6:14 ` crazylht at gmail dot com
2020-05-19 16:39 ` nemo@self-evident.org
2022-09-23 5:29 ` cvs-commit at gcc dot gnu.org [this message]
2022-09-23 5:32 ` crazylht at gmail dot com
2022-09-26 5:30 ` cvs-commit at gcc dot gnu.org
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=bug-94962-4-CZVv6E3aBV@http.gcc.gnu.org/bugzilla/ \
--to=gcc-bugzilla@gcc.gnu.org \
--cc=gcc-bugs@gcc.gnu.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).