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[Bug target/88461] AVX512: gcc should keep value in kN registers if possible
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 13 Dec 2018 08:01:31 +0000
- Subject: [Bug target/88461] AVX512: gcc should keep value in kN registers if possible
- Auto-submitted: auto-generated
- References: <bug-88461-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88461
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Dec 13 08:00:42 2018
New Revision: 267077
URL: https://gcc.gnu.org/viewcvs?rev=267077&root=gcc&view=rev
Log:
PR target/88461
* config/i386/sse.md (VI1248_AVX512VLBW, AVX512ZEXTMASK): New
mode iterators.
(<avx512>_testm<mode>3<mask_scalar_merge_name>,
<avx512>_testnm<mode>3<mask_scalar_merge_name>): Merge patterns
with VI12_AVX512VL and VI48_AVX512VL iterators into ones with
VI1248_AVX512VLBW iterator.
(*<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext,
*<avx512>_testm<VI1248_AVX512VLBW:mode>3_zext_mask,
*<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext,
*<avx512>_testnm<VI1248_AVX512VLBW:mode>3_zext_mask): New
define_insns.
* gcc.target/i386/pr88461.c: New test.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr88461.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/sse.md
trunk/gcc/testsuite/ChangeLog