On Linux/x86_64,
c71886f2ca2e46ce1449c7064d6f1b447d02fcba is the first bad commit
commit c71886f2ca2e46ce1449c7064d6f1b447d02fcba
Author: Richard Biener <rguent...@suse.de>
Date: Fri Sep 29 13:13:16 2023 +0200
Avoid splitting store dataref groups during SLP discovery
caused
FAIL: gcc.dg/vect/vect-gather-4.c -flto -ffat-lto-objects scan-tree-dump-not
vect "Loop contains only SLP stmts"
FAIL: gcc.dg/vect/vect-gather-4.c scan-tree-dump-not vect "Loop contains only
SLP stmts"
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-812/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/vect-gather-4.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="vect.exp=gcc.dg/vect/vect-gather-4.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.)
