On Linux/x86_64,
2c1e97207485e54ab6ae085f76c07e62a14440ae is the first bad commit
commit 2c1e97207485e54ab6ae085f76c07e62a14440ae
Author: Jovan Dmitrovic <[email protected]>
Date: Sat Aug 29 12:09:51 2026 -0600
[PATCH v4 1/3] ivopts: Remove bias from calculating reg pressure cost.
caused
FAIL: gcc.dg/tree-ssa/ssa-sink-18.c scan-tree-dump-times sink2 "Sunk
statements: 5" 1
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/master/master/r17-3756/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="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-18.c
--target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="tree-ssa.exp=gcc.dg/tree-ssa/ssa-sink-18.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.)
