On Linux/x86_64,
a6c50ec2c6ebcbda2b032eee0552a6a486355e12 is the first bad commit
commit a6c50ec2c6ebcbda2b032eee0552a6a486355e12
Author: H.J. Lu <[email protected]>
Date: Fri Oct 24 09:00:59 2025 +0800
Add -ffuse-ops-with-volatile-access
caused
FAIL: gcc.target/i386/avx2-vpcmpeqq-1.c scan-assembler vpcmpeqq[
\\t]+[^\n]*%ymm[0-9]
FAIL: gcc.target/i386/avx2-vpcmpgtq-1.c scan-assembler vpcmpgtq[
\\t]+[^\n]*%ymm[0-9]
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-5947/usr
--enable-clocale=gnu --with-system-zlib --with-demangler-in-ld
--with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl
--enable-libmpx x86_64-linux --disable-bootstrap
To reproduce:
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-vpcmpeqq-1.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-vpcmpeqq-1.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-vpcmpgtq-1.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx2-vpcmpgtq-1.c
--target_board='unix{-m64\ -march=cascadelake}'"
(Please directly reply to this email for question about this report.)
(If you met problems with cascadelake related, disabling AVX512F in command
line might save that.)
(However, please make sure that there is no potential problems with AVX512.)
