[r15-1240 Regression] FAIL: gcc.target/i386/vect-strided-3.c scan-assembler-times movhps 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

e8f4d525cb320ff11dd95b985d8043fef0510878 is the first bad commit
commit e8f4d525cb320ff11dd95b985d8043fef0510878
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Jun 10 15:31:35 2024 +0200

    Improve code generation of strided SLP loads

caused

FAIL: gcc.target/i386/vect-strided-3.c scan-assembler-times movhps 2

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-1240/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/vect-strided-3.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.)