On Linux/x86_64,
7659926b80deaf0523d9ccee51446b4187f978cb is the first bad commit
commit 7659926b80deaf0523d9ccee51446b4187f978cb
Author: Avinash Jayakar <[email protected]>
Date: Wed Jun 10 12:46:50 2026 +0530
match.pd: Recognize integer spaceship operator patterns
caused
FAIL: gcc.dg/spaceship_mixed_variants.c scan-tree-dump-times optimized
"\\.SPACESHIP \\([^,]+, [^,]+, -1\\)" 64
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-1582/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.exp=gcc.dg/spaceship_mixed_variants.c
--target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="dg.exp=gcc.dg/spaceship_mixed_variants.c
--target_board='unix{-m32\ -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.)
