On Linux/x86_64,
679086172b84be18c55fdbb9cda7e97806e7c083 is the first bad commit
commit 679086172b84be18c55fdbb9cda7e97806e7c083
Author: Jeff Law <j...@ventanamicro.com>
Date: Wed Jul 24 11:16:26 2024 -0600
[rtl-optimization/116037] Explicitly track if a destination was skipped in
ext-dce
caused
FAIL: gcc.dg/torture/pr116037.c -O0 (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c -O1 (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c -O2 -flto -fno-use-linker-plugin
-flto-partition=none (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c -O2 (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c -O3 -g (test for excess errors)
FAIL: gcc.dg/torture/pr116037.c -Os (test for excess errors)
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2275/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-torture.exp=gcc.dg/torture/pr116037.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg-torture.exp=gcc.dg/torture/pr116037.c
--target_board='unix{-m32\ -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.)
