On Linux/x86_64,
c585baad310a4a5394ff90222faa6933d261fc90 is the first bad commit
commit c585baad310a4a5394ff90222faa6933d261fc90
Author: Jeff Law <[email protected]>
Date: Sat Jul 11 22:36:11 2026 -0600
expmed: Optimize 32-bit unsigned division by constants on 64-bit targets
caused
FAIL: gcc.target/i386/mulq-highpart.c check-function-bodies div7
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-2334/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/mulq-highpart.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.)
