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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/100267] gcc -O2 for avx512 instrincts generates extra warnings and less optimizations
Date: Tue, 22 Jun 2021 01:35:42 +0000 [thread overview]
Message-ID: <bug-100267-4-7L81ruJWuS@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-100267-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100267
--- Comment #7 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:f51618f301664d02cc41205f1386c0c9b9a29a54
commit r12-1706-gf51618f301664d02cc41205f1386c0c9b9a29a54
Author: liuhongt <hongtao.liu@intel.com>
Date: Thu Apr 29 18:27:09 2021 +0800
Optimize vpexpand* to mask mov when mask have all ones in it's lower part
(including 0 and -1).
gcc/ChangeLog:
PR target/100267
* config/i386/i386-builtin.def (BDESC): Adjust builtin name.
* config/i386/sse.md (<avx512>_expand<mode>_mask): Rename to ..
(expand<mode>_mask): this ..
(*expand<mode>_mask): New pre_reload splitter to transform
v{,p}expand* to vmov* when mask is zero, all ones, or has all
ones in it's lower part, otherwise still generate
v{,p}expand*.
gcc/testsuite/ChangeLog:
PR target/100267
* gcc.target/i386/avx512bw-pr100267-1.c: New test.
* gcc.target/i386/avx512bw-pr100267-b-2.c: New test.
* gcc.target/i386/avx512bw-pr100267-d-2.c: New test.
* gcc.target/i386/avx512bw-pr100267-q-2.c: New test.
* gcc.target/i386/avx512bw-pr100267-w-2.c: New test.
* gcc.target/i386/avx512f-pr100267-1.c: New test.
* gcc.target/i386/avx512f-pr100267-pd-2.c: New test.
* gcc.target/i386/avx512f-pr100267-ps-2.c: New test.
* gcc.target/i386/avx512vl-pr100267-1.c: New test.
* gcc.target/i386/avx512vl-pr100267-pd-2.c: New test.
* gcc.target/i386/avx512vl-pr100267-ps-2.c: New test.
* gcc.target/i386/avx512vlbw-pr100267-1.c: New test.
* gcc.target/i386/avx512vlbw-pr100267-b-2.c: New test.
* gcc.target/i386/avx512vlbw-pr100267-d-2.c: New test.
* gcc.target/i386/avx512vlbw-pr100267-q-2.c: New test.
* gcc.target/i386/avx512vlbw-pr100267-w-2.c: New test.
next prev parent reply other threads:[~2021-06-22 1:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-26 12:48 [Bug middle-end/100267] New: " konstantin.ananyev at intel dot com
2021-04-27 7:08 ` [Bug middle-end/100267] " rguenth at gcc dot gnu.org
2021-04-27 12:07 ` crazylht at gmail dot com
2021-04-28 8:52 ` crazylht at gmail dot com
2021-04-28 9:56 ` crazylht at gmail dot com
2021-04-30 1:13 ` crazylht at gmail dot com
2021-05-07 2:22 ` crazylht at gmail dot com
2021-06-22 1:35 ` cvs-commit at gcc dot gnu.org [this message]
2021-06-22 1:47 ` crazylht at gmail dot com
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