On Linux/x86_64,
bdf2737cda53a83332db1a1a021653447b05a7e7 is the first bad commit
commit bdf2737cda53a83332db1a1a021653447b05a7e7
Author: Roger Sayle <ro...@nextmovesoftware.com>
Date: Fri Jul 7 20:39:58 2023 +0100
i386: Improve __int128 argument passing (in ix86_expand_move).
caused
FAIL: gcc.target/i386/pr82580.c scan-assembler-not \\mmovzb
FAIL: gcc.target/i386/pr91681-1.c scan-assembler-not xor
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-2386/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/pr82580.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr82580.c --target_board='unix{-m64\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr91681-1.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr91681-1.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.)
