[r15-3357 Regression] FAIL: gcc.target/i386/avx10_2-bf-vector-smaxmin-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

29ef601973d7b79338694e59581d4c24bcd07f69 is the first bad commit
commit 29ef601973d7b79338694e59581d4c24bcd07f69
Author: Levy Hsu <admin@levyhsu.com>
Date:   Mon Sep 2 10:24:47 2024 +0800

    i386: Support vectorized BF16 smaxmin with AVX10.2 instructions

caused

FAIL: gcc.target/i386/avx10_2-bf-vector-smaxmin-1.c (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3357/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/avx10_2-bf-vector-smaxmin-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-bf-vector-smaxmin-1.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.)