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| author | H.J. Lu <hjl.tools@gmail.com> | 2020-04-14 06:00:21 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2020-04-14 06:00:32 -0700 |
| commit | 438ffa2a8fac925b1bee8862fa15bc5380c0dffd (patch) | |
| tree | 1045934f0c762478b0854b55a8dc7cb6010c3fbc /gcc/config | |
| parent | efd5bd4dfe0fa53858769c0195bb7d9352ad5a95 (diff) | |
| download | gcc-438ffa2a8fac925b1bee8862fa15bc5380c0dffd.zip gcc-438ffa2a8fac925b1bee8862fa15bc5380c0dffd.tar.gz gcc-438ffa2a8fac925b1bee8862fa15bc5380c0dffd.tar.bz2 | |
i386: Remove mode size check in ix86_get_ssemov
Even though ix86_hard_regno_mode_ok doesn't allow xmm16-xmm31 nor
ymm16-ymm31 in 128/256 bit modes when AVX512VL is disabled, LRA can
still generate reg to reg moves with xmm16-xmm31 and ymm16-ymm31 in
128/256 bit modes. Remove mode size check in ix86_get_ssemov.
gcc/
PR target/94561
* config/i386/i386.c (ix86_get_ssemov): Remove mode size check.
gcc/testsuite/
PR target/94561
* gcc.target/i386/pr94561.c: New test.
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/i386/i386.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 5e87cd4..1a9823e 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -4969,12 +4969,12 @@ ix86_get_ssemov (rtx *operands, unsigned size, && !TARGET_AVX512VL && GET_MODE_SIZE (mode) < 64) { - /* NB: Since ix86_hard_regno_mode_ok only allows xmm16-xmm31 or - ymm16-ymm31 in 128/256 bit modes when AVX512VL is enabled, - we get here only for xmm16-xmm31 or ymm16-ymm31 in 32/64 bit + /* NB: Even though ix86_hard_regno_mode_ok doesn't allow + xmm16-xmm31 nor ymm16-ymm31 in 128/256 bit modes when + AVX512VL is disabled, LRA can still generate reg to + reg moves with xmm16-xmm31 and ymm16-ymm31 in 128/256 bit modes. */ - if (GET_MODE_SIZE (mode) >= 16 - || memory_operand (operands[0], mode) + if (memory_operand (operands[0], mode) || memory_operand (operands[1], mode)) gcc_unreachable (); size = 64; |