[r15-853 Regression] FAIL: gcc.dg/tree-ssa/bitops-9.c scan-tree-dump-times optimized "bit_not_expr, " 1 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

c5a7628470a7fb801ebeea82e16a4549db43bfa5 is the first bad commit
commit c5a7628470a7fb801ebeea82e16a4549db43bfa5
Author: Andrew Pinski <quic_apinski@quicinc.com>
Date:   Sun May 26 17:59:21 2024 -0700

    match: Use uniform_integer_cst_p in bitwise_inverted_equal_p [PR115238]

caused

FAIL: gcc.dg/tree-ssa/bitops-9.c scan-tree-dump-times optimized "bit_ior_expr, " 1
FAIL: gcc.dg/tree-ssa/bitops-9.c scan-tree-dump-times optimized "bit_not_expr, " 1

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-853/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="tree-ssa.exp=gcc.dg/tree-ssa/bitops-9.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/bitops-9.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.)