On Linux/x86_64,
2b3533cd871f62923e7a4f06a826f37bf0f35c5c is the first bad commit
commit 2b3533cd871f62923e7a4f06a826f37bf0f35c5c
Author: Filip Kastl <fka...@suse.cz>
Date: Tue Jul 30 18:40:29 2024 +0200
gimple ssa: Teach switch conversion to optimize powers of 2 switches
caused
FAIL: gcc.target/i386/switch-exp-transform-3.c scan-tree-dump-times switchconv
"Applying exponential index transform" 6
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-2416/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/switch-exp-transform-3.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/switch-exp-transform-3.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.)
