On Linux/x86_64,
0883c88664d48463dfc79335dccaf15a69230952 is the first bad commit
commit 0883c88664d48463dfc79335dccaf15a69230952
Author: Artemiy Volkov <[email protected]>
Date: Tue Oct 8 17:51:08 2024 -0600
tree-optimization/116024 - simplify C1-X cmp C2 for UB-on-overflow types
caused
FAIL: gcc.dg/pr67089-6.c scan-tree-dump-times widening_mul "SUB_OVERFLOW" 9
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-4186/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="dg.exp=gcc.dg/pr67089-6.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gcc.dg/pr67089-6.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.)
