On Linux/x86_64,
0340177d54d08b6375391ba164a878e6a596275e is the first bad commit
commit 0340177d54d08b6375391ba164a878e6a596275e
Author: Andrew Pinski <quic_apin...@quicinc.com>
Date: Tue Jul 29 21:49:16 2025 -0700
simplify-rtx: Add `(subreg (not a))` simplification for word_mode [PR121308]
caused
FAIL: gcc.target/i386/pr82524.c scan-assembler-not mov[sz]bl
FAIL: gcc.target/i386/pr82524.c scan-assembler [ \t]notb
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r16-2649/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/pr82524.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr82524.c --target_board='unix{-m32\
-march=cascadelake}'"
(Please do not reply to this email, for question about this report, contact me
at haochen dot jiang at intel.com.)
(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.)
