On Linux/x86_64,
3cca524e337a886d479e630c7a3e6aef4656b425 is the first bad commit
commit 3cca524e337a886d479e630c7a3e6aef4656b425
Author: MITSUNARI Shigeo <[email protected]>
Date: Sat Jul 11 22:38:41 2026 -0600
i386: Add BMI2 MULX pattern for highpart-only multiplication
caused
FAIL: gcc.target/i386/bmi2-mulx-highpart-1.c check-function-bodies div7
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-2335/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/bmi2-mulx-highpart-1.c
--target_board='unix{-m64\ -march=cascadelake}'"
(Please directly reply to this email for question about this report.)
(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.)
