diff options
| author | liuhongt <hongtao.liu@intel.com> | 2024-09-06 15:03:16 +0800 |
|---|---|---|
| committer | liuhongt <hongtao.liu@intel.com> | 2024-09-10 12:50:13 +0800 |
| commit | c726a6643125a59e2ba6f992924a2d0098104578 (patch) | |
| tree | 51fd5b5fc21942fd476c0704fa230a6bbf31d3a1 /gcc | |
| parent | 852cff82689cba4848865944a88f0d07285edde0 (diff) | |
| download | gcc-c726a6643125a59e2ba6f992924a2d0098104578.zip gcc-c726a6643125a59e2ba6f992924a2d0098104578.tar.gz gcc-c726a6643125a59e2ba6f992924a2d0098104578.tar.bz2 | |
Don't force_reg operands[3] when it's not const0_rtx.
It fix the regression by
a51f2fc0d80869ab079a93cc3858f24a1fd28237 is the first bad commit
commit a51f2fc0d80869ab079a93cc3858f24a1fd28237
Author: liuhongt <hongtao.liu@intel.com>
Date: Wed Sep 4 15:39:17 2024 +0800
Handle const0_operand for *avx2_pcmp<mode>3_1.
caused
FAIL: gcc.target/i386/pr59539-1.c scan-assembler-times vmovdqu|vmovups 1
To reproduce:
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr59539-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr59539-1.c --target_board='unix{-m64\ -march=cascadelake}'"
gcc/ChangeLog:
* config/i386/sse.md (*avx2_pcmp<mode>3_1): Don't force_reg
operands[3] when it's not const0_rtx.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/sse.md | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md index 1946d35..1ae6118 100644 --- a/gcc/config/i386/sse.md +++ b/gcc/config/i386/sse.md @@ -17929,7 +17929,8 @@ if (INTVAL (operands[5]) == 1) std::swap (operands[3], operands[4]); - operands[3] = force_reg (<MODE>mode, operands[3]); + if (operands[3] == CONST0_RTX (<MODE>mode)) + operands[3] = force_reg (<MODE>mode, operands[3]); if (operands[4] == CONST0_RTX (<MODE>mode)) operands[4] = force_reg (<MODE>mode, operands[4]); |