On Linux/x86_64,
3f176e1adc6bc9cc2c21222d776b51d9f43cb66b is the first bad commit
commit 3f176e1adc6bc9cc2c21222d776b51d9f43cb66b
Author: Tamar Christina <tamar.christ...@arm.com>
Date: Thu Nov 9 13:59:39 2023 +0000
middle-end: optimize fneg (fabs (x)) to copysign (x, -1) [PR109154]
caused
FAIL: gcc.target/i386/fnabs.c scan-assembler-times \tv?orp[sd][ \t] 2
with GCC configured with
../../gcc/configure
--prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-5284/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/fnabs.c --target_board='unix{-m32\
-march=cascadelake}'"
$ cd {build_dir}/gcc && make check
RUNTESTFLAGS="i386.exp=gcc.target/i386/fnabs.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.)
