On Linux/x86_64,
653977c4a31643497655600688ff238b734f7512 is the first bad commit
commit 653977c4a31643497655600688ff238b734f7512
Author: H.J. Lu <[email protected]>
Date: Sun Oct 19 09:13:52 2025 +0800
x86: Optimize copysign (x, const_double)
caused
FAIL: gcc.target/i386/builtin-copysign-8b.c check-function-bodies foo
with GCC configured with
../../gcc/configure
--prefix=/export/users3/haochenj/src/gcc-bisect/gcc-15/releases/gcc-15/r15-10443/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/builtin-copysign-8b.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.)
