From: haochen.jiang <haoch...@shliclel4214.sh.intel.com>
Sent: Tuesday, August 15, 2023 5:26 PM
To: rguent...@suse.de; gcc-regress...@gcc.gnu.org; gcc-patches@gcc.gnu.org;
Jiang, Haochen <haochen.ji...@intel.com>
Subject: [r14-3148 Regression] FAIL: gcc.dg/vect/bb-slp-subgroups-2.c
scan-tree-dump-times slp2 "optimized: basic block" 2 on Linux/x86_64
On Linux/x86_64,
3a13884b23ae32b43d56d68a9c6bd4ce53d60017 is the first bad commit commit
3a13884b23ae32b43d56d68a9c6bd4ce53d60017
Author: Richard Biener <rguent...@suse.de>
Date: Fri Aug 11 12:08:10 2023 +0200
Improve BB vectorization opt-info
caused
FAIL: gcc.dg/vect/bb-slp-subgroups-2.c -flto -ffat-lto-objects
scan-tree-dump-times slp2 "optimized: basic block" 2
FAIL: gcc.dg/vect/bb-slp-subgroups-2.c scan-tree-dump-times slp2 "optimized:
basic block" 2
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-3148/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="vect.exp=gcc.dg/vect/bb-slp-subgroups-2.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/bb-slp-subgroups-2.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.)
