[r15-2820 Regression] FAIL: gcc.target/i386/pr105493.c scan-tree-dump-times slp1 " MEM <vector\\(4\\) unsigned int> \\[[^]]*\\] = " 4 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

ab18785840d7b8afd9f716bab9d1eab415bc4fe9 is the first bad commit
commit ab18785840d7b8afd9f716bab9d1eab415bc4fe9
Author: Manolis Tsamis <manolis.tsamis@vrull.eu>
Date:   Tue Jun 25 08:00:04 2024 -0700

    Rearrange SLP nodes with duplicate statements [PR98138]

caused

FAIL: gcc.target/i386/pr105493.c scan-tree-dump-times slp1 "  MEM <vector\\(4\\) unsigned int> \\[[^]]*\\] = " 4

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2820/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/pr105493.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr105493.c --target_board='unix{-m64\ -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.)