On Linux/x86_64,
20a3c74c347429c109bc7002285b735be83f6a0b is the first bad commit
commit 20a3c74c347429c109bc7002285b735be83f6a0b
Author: Sebastian Huber <sebastian.hu...@embedded-brains.de>
Date: Tue Nov 14 21:36:51 2023 +0100
gcov: Improve -fprofile-update=atomic
caused
FAIL: gcc.dg/tree-ssa/ssa-lim-11.c scan-tree-dump-times lim2 "Executing store
motion of __gcov0.access_buf\\[[12]\\] from loop 1" 2
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5579/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="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-lim-11.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.)
