* [r15-268 Regression] FAIL: gcc.target/i386/pr101950-2.c scan-assembler-times \txor[ql]\t 2 on Linux/x86_64
@ 2024-05-07 16:47 haochen.jiang
0 siblings, 0 replies; only message in thread
From: haochen.jiang @ 2024-05-07 16:47 UTC (permalink / raw)
To: rguenther, gcc-regression, gcc-patches, haochen.jiang
On Linux/x86_64,
9dbff9c05520a74e6cd337578f27b56c941f64f3 is the first bad commit
commit 9dbff9c05520a74e6cd337578f27b56c941f64f3
Author: Richard Biener <rguenther@suse.de>
Date: Tue May 7 10:14:19 2024 +0200
Revert "Revert "combine: Don't combine if I2 does not change""
caused
FAIL: gcc.target/i386/pr101950-2.c scan-assembler-times \txor[ql]\t 2
with GCC configured with
../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r15-268/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/pr101950-2.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="i386.exp=gcc.target/i386/pr101950-2.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.)
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