On Linux/x86_64,
10f6223d833874199e17226fbb0c562b69a1e72f is the first bad commit
commit 10f6223d833874199e17226fbb0c562b69a1e72f
Author: Dylan Rees <[email protected]>
Date: Mon Jul 13 09:57:18 2026 +0000
middle-end: Eliminate redundant scalar duplication at different vector
widths
caused
FAIL: gcc.target/i386/pr124407-1.c scan-rtl-dump x86_cse "\\(const_int 0
\\[0\\]\\) repeated x16"
FAIL: gcc.target/i386/pr124407-1.c scan-rtl-dump x86_cse "\\(set \\(reg:V16QI
125\\)"
FAIL: gcc.target/i386/pr81501-9b.c check-function-bodies foo
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-2354/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/pr124407-1.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr124407-1.c --target_board='unix{-m64\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr81501-9b.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr81501-9b.c --target_board='unix{-m64\
-march=cascadelake}'"
(Please directly reply to this email for question about this report.)
(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.)
