On Linux/x86_64,
6d294fb8ac9baf2624446deaa4c995b7a7719823 is the first bad commit
commit 6d294fb8ac9baf2624446deaa4c995b7a7719823
Author: Levy Hsu <ad...@levyhsu.com>
Date: Mon Sep 2 10:24:46 2024 +0800
i386: Support vectorized BF16 FMA with AVX10.2 instructions
caused
FAIL: gcc.target/i386/avx10_2-bf-vector-fma-1.c (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-3356/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-fma-1.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/avx10_2-bf-vector-fma-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.)
