On Linux/x86_64,
37e61c793c1b22bdcfbf142cd6086da2745be596 is the first bad commit
commit 37e61c793c1b22bdcfbf142cd6086da2745be596
Author: Jan Hubicka <hubi...@ucw.cz>
Date: Sun May 11 23:49:11 2025 +0200
i386: Fix move costs in vectorizer cost model.
caused
FAIL: gcc.target/i386/pr108938-3.c scan-assembler-times bswap[\t ]+ 3
FAIL: gcc.target/i386/pr111023-2.c scan-assembler (?:pcmpgtd|psrad)
FAIL: gcc.target/i386/pr111023-2.c scan-assembler (?:pcmpgtw|psraw)
FAIL: gcc.target/i386/pr111023-2.c scan-assembler punpckldq
FAIL: gcc.target/i386/pr111023-2.c scan-assembler punpcklwd
FAIL: gcc.target/i386/pr111023.c scan-assembler punpckldq
FAIL: gcc.target/i386/pr111023.c scan-assembler punpcklwd
FAIL: gcc.target/i386/vect-shiftv4qi.c scan-assembler-times psllw 2
FAIL: gcc.target/i386/vect-shiftv4qi.c scan-assembler-times psrlw 5
FAIL: gcc.target/i386/vect-shiftv8qi.c scan-assembler-times psllw 2
FAIL: gcc.target/i386/vect-shiftv8qi.c scan-assembler-times psrlw 5
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r16-531/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/pr108938-3.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr108938-3.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr111023-2.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr111023-2.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr111023.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr111023.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-shiftv4qi.c
--target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-shiftv4qi.c
--target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/vect-shiftv8qi.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.)
