Hello,
We will start analyzing x86_64 regressions reported at
https://gcc.gnu.org/pipermail/gcc-regression/
to identify commits which caused each regression. For each regression, We
will send an email to the committer, gcc-regression and gcc-patches mailing
lists in following format.
From: sunil.k.pandey <skpan...@sc.intel.com>
Date: Wed, Aug 26, 2020 at 11:06 PM
Subject: [r11-2683 Regression] FAIL: gcc.target/i386/avx512bw-pr96246-1.c
scan-assembler-times vblendmp[sd][\t ] 2 on Linux/x86_64
To: <author>, <gcc-regress...@gcc.gnu.org>, <gcc-patc...@gcc.gnu.org>
On Linux/x86_64,
7123217afb33d4a2860f552ad778a819cc8dea5e is the first bad commit
commit 7123217afb33d4a2860f552ad778a819cc8dea5e
Author: author <author>
Date: Tue Jul 21 15:25:20 2020 +0800
Merge two define_insn: <avx512>_blendm<mode>, <avx512>_load<mode>_mask.
caused
FAIL: gcc.target/i386/avx512bw-pr96246-1.c scan-assembler-times
vblendmp[sd][\t ] 2
with GCC configured with
../../gcc/configure
--prefix=/local/skpandey/gccwork/toolwork/gcc-bisect-master/master/r11-2683/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/avx512bw-pr96246-1.c
--target_board='unix{-m64}'"
(Please do not reply to this email, for question about this report, contact
me at skpgkp2 at gmail dot com)
