[r12-3108 Regression] FAIL: gcc.target/i386/sse2-shiftqihi-constant-1.c scan-assembler-times pxor[^\n]*%xmm 1 on Linux/x86_64

sunil.k.pandey skpandey@sc.intel.com
Tue Aug 24 18:01:18 GMT 2021


On Linux/x86_64,

6ddb30f941a44bd528904558673ab35394565f08 is the first bad commit
commit 6ddb30f941a44bd528904558673ab35394565f08
Author: liuhongt <hongtao.liu@intel.com>
Date:   Fri Aug 20 15:30:40 2021 +0800

    Optimize (a & b) | (c & ~b) to vpternlog instruction.

caused

FAIL: gcc.target/i386/avx2-shiftqihi-constant-1.c scan-assembler-times vpand[^\n]*%ymm 3
FAIL: gcc.target/i386/avx2-shiftqihi-constant-1.c scan-assembler-times vpxor[^\n]*%ymm 1
FAIL: gcc.target/i386/sse2-shiftqihi-constant-1.c scan-assembler-times pxor[^\n]*%xmm 1

with GCC configured with



To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-shiftqihi-constant-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-shiftqihi-constant-1.c --target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse2-shiftqihi-constant-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/sse2-shiftqihi-constant-1.c --target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at skpgkp2 at gmail dot com)


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