[Bug rtl-optimization/68376] [4.9 Regression] wrong code at -O1 and above on x86_64-linux-gnu
jakub at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Thu Dec 10 22:29:00 GMT 2015
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68376
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Thu Dec 10 22:29:12 2015
New Revision: 231546
URL: https://gcc.gnu.org/viewcvs?rev=231546&root=gcc&view=rev
Log:
PR rtl-optimization/68376
PR rtl-optimization/68670
* ifcvt.c (noce_try_abs): For one_cmpl allow < 0, >= 0
or > -1 conditions regardless of negate, and disallow
all other conditions.
* gcc.c-torture/execute/pr68376-2.c (f5, f6, f7, f8): New
tests.
(main): Call them.
* gcc.dg/pr68670-1.c: New test.
* gcc.dg/pr68670-2.c: New test.
Added:
branches/gcc-5-branch/gcc/testsuite/gcc.dg/pr68670-1.c
branches/gcc-5-branch/gcc/testsuite/gcc.dg/pr68670-2.c
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/ifcvt.c
branches/gcc-5-branch/gcc/testsuite/ChangeLog
branches/gcc-5-branch/gcc/testsuite/gcc.c-torture/execute/pr68376-2.c
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