diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2021-07-16 10:29:46 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-08-03 07:11:58 -0700 |
| commit | 98d7f305d5081bc91c16b9d2b4d62196b86bca86 (patch) | |
| tree | aafd8e56a1cd67c8a936cfbe39839116ec0fca43 /libgcc | |
| parent | a1a2654cdc90e9aa561a0e853b4b1372892afb70 (diff) | |
| download | gcc-98d7f305d5081bc91c16b9d2b4d62196b86bca86.zip gcc-98d7f305d5081bc91c16b9d2b4d62196b86bca86.tar.gz gcc-98d7f305d5081bc91c16b9d2b4d62196b86bca86.tar.bz2 | |
x86: Use XMM31 for scratch SSE register
In 64-bit mode, use XMM31 for scratch SSE register to avoid vzeroupper
if possible.
gcc/
* config/i386/i386.c (ix86_gen_scratch_sse_rtx): In 64-bit mode,
try XMM31 to avoid vzeroupper.
gcc/testsuite/
* gcc.target/i386/avx-vzeroupper-14.c: Pass -mno-avx512f to
disable XMM31.
* gcc.target/i386/avx-vzeroupper-15.c: Likewise.
* gcc.target/i386/pr82941-1.c: Updated. Check for vzeroupper.
* gcc.target/i386/pr82942-1.c: Likewise.
* gcc.target/i386/pr82990-1.c: Likewise.
* gcc.target/i386/pr82990-3.c: Likewise.
* gcc.target/i386/pr82990-5.c: Likewise.
* gcc.target/i386/pr100865-4b.c: Likewise.
* gcc.target/i386/pr100865-6b.c: Likewise.
* gcc.target/i386/pr100865-7b.c: Likewise.
* gcc.target/i386/pr100865-10b.c: Likewise.
* gcc.target/i386/pr100865-8b.c: Updated.
* gcc.target/i386/pr100865-9b.c: Likewise.
* gcc.target/i386/pr100865-11b.c: Likewise.
* gcc.target/i386/pr100865-12b.c: Likewise.
Diffstat (limited to 'libgcc')
0 files changed, 0 insertions, 0 deletions