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| author | Jakub Jelinek <jakub@redhat.com> | 2023-11-14 08:11:44 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-11-14 08:11:44 +0100 |
| commit | 6043bfbd89b335dd10f093a653ee58c5b1e08ed3 (patch) | |
| tree | 83b44c00921f0f02e51d39c27ed0379485ed5257 /gcc/tree-ssa-phiopt.cc | |
| parent | bfcb6e518371bb943b77e0ef784e1de72a99aec6 (diff) | |
| download | gcc-6043bfbd89b335dd10f093a653ee58c5b1e08ed3.zip gcc-6043bfbd89b335dd10f093a653ee58c5b1e08ed3.tar.gz gcc-6043bfbd89b335dd10f093a653ee58c5b1e08ed3.tar.bz2 | |
i386: Don't optimize vshuf{i,f}{32x4,64x2} and vperm{i,f}128 to vblendps for %ymm16+ [PR112435]
The vblendps instruction is only VEX encoded, not EVEX, so can't be used if
there are %ymm16+ or EGPR registers involved.
2023-11-14 Jakub Jelinek <jakub@redhat.com>
Hu, Lin1 <lin1.hu@intel.com>
PR target/112435
* config/i386/sse.md (avx512vl_shuf_<shuffletype>32x4_1<mask_name>,
<mask_codefor>avx512dq_shuf_<shuffletype>64x2_1<mask_name>): Add
alternative with just x instead of v constraints and xjm instead of
vm and use vblendps as optimization only with that alternative.
* gcc.target/i386/avx512vl-pr112435-1.c: New test.
* gcc.target/i386/avx512vl-pr112435-2.c: New test.
* gcc.target/i386/avx512vl-pr112435-3.c: New test.
Diffstat (limited to 'gcc/tree-ssa-phiopt.cc')
0 files changed, 0 insertions, 0 deletions