[r15-2991 Regression] FAIL: gcc.target/i386/avx10_2-rounding-1.c (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

e22e3af1954469c40b139b7cfa8e7708592f4bfd is the first bad commit
commit e22e3af1954469c40b139b7cfa8e7708592f4bfd
Author: Hu, Lin1 <lin1.hu@intel.com>
Date:   Mon Aug 19 10:08:51 2024 +0800

    AVX10.2 ymm rounding: Support vadd{s,d,h} and vcmp{s,d,h} intrins

caused

FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmppd[ \\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7](?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmppd[ \\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7]{%k[1-7]}(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpph[ \\t]+\\$3[^\n\r]*{sae}[^\n\r]*%ymm[0-9]+[^\n\r]*%ymm[0-9]+[^\n\r]*%k[0-9][^\n\r]*(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpph[ \\t]+[^{\n]*\\$4[^\n\r]*%ymm[0-9]+[^\n\r]*%ymm[0-9]+[^\n\r]*%k[0-9]{%k[0-9]}[^\n\r]*(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpps[ \\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7](?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c scan-assembler-times vcmpps[ \\t]+[^{\n]*{sae}[^\n]*%ymm[0-9]+[^\n^k]*%k[0-7]{%k[1-7]}(?:\n|[ \\t]+#) 1
FAIL: gcc.target/i386/avx10_2-rounding-1.c (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2991/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-rounding-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-rounding-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.)