On Linux/x86_64,
66ed104db50c639c79e7ba2826ccd6df41cb37c1 is the first bad commit
commit 66ed104db50c639c79e7ba2826ccd6df41cb37c1
Author: Richard Biener <[email protected]>
Date: Mon Aug 24 11:24:57 2026 +0200
tree-optimization/126997 - hoist invariants after unswitching
caused
FAIL: gcc.target/i386/pr125238.c scan-assembler movabsq[ \\t]+\\$8589934594,
%r[a-z0-9]+
FAIL: gcc.target/i386/pr89523-1a.c scan-assembler addr32 vgather
FAIL: gcc.target/i386/pr89523-1b.c scan-assembler addr32 vgather
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-3584/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/pr125238.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr125238.c --target_board='unix{-m64\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr89523-1a.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr89523-1a.c --target_board='unix{-m64\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr89523-1b.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/pr89523-1b.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.)
