https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67103
Bug ID: 67103
Summary: [6 Regression]: gcc.target/i386/cmov2.c and
gcc.target/i386/cmov3.c FAIL on x86
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: ubizjak at gmail dot com
Target Milestone: ---
Revision r226491 :
[RTL-ifcvt] Improve conditional select ops on immediates
* ifcvt.c (noce_try_store_flag_constants): Make logic of the case
when diff == STORE_FLAG_VALUE or diff == -STORE_FLAG_VALUE more
explicit. Prefer to add the flag whenever possible.
(noce_process_if_block): Try noce_try_store_flag_constants before
noce_try_cmove.
* gcc.target/aarch64/csel_bfx_1.c: New test.
* gcc.target/aarch64/csel_imms_inc_1.c: Likewise.
introduced following testsuite failures on x86:
FAIL: gcc.target/i386/cmov2.c scan-assembler sbb
FAIL: gcc.target/i386/cmov3.c scan-assembler cmov[^3]
The report and a discussion is at [1].
[1] https://gcc.gnu.org/ml/gcc-patches/2015-08/msg00056.html
