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[Bug tree-optimization/72824] [5/6 Regression] Signed floating point zero semantics broken at optimization level -O3 (tree-loop-distribute-patterns)
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 10 Aug 2016 12:17:11 +0000
- Subject: [Bug tree-optimization/72824] [5/6 Regression] Signed floating point zero semantics broken at optimization level -O3 (tree-loop-distribute-patterns)
- Auto-submitted: auto-generated
- References: <bug-72824-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72824
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Aug 10 12:16:39 2016
New Revision: 239319
URL: https://gcc.gnu.org/viewcvs?rev=239319&root=gcc&view=rev
Log:
Backported from mainline
2016-08-09 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/72824
* tree-loop-distribution.c (const_with_all_bytes_same): Verify
real_zerop is not negative.
* gcc.c-torture/execute/ieee/pr72824.c: New test.
Added:
branches/gcc-6-branch/gcc/testsuite/gcc.c-torture/execute/ieee/pr72824.c
Modified:
branches/gcc-6-branch/gcc/ChangeLog
branches/gcc-6-branch/gcc/testsuite/ChangeLog
branches/gcc-6-branch/gcc/tree-loop-distribution.c