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[Bug tree-optimization/81403] [8 Regression] wrong code at -O3
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 18 Jul 2017 07:36:14 +0000
- Subject: [Bug tree-optimization/81403] [8 Regression] wrong code at -O3
- Auto-submitted: auto-generated
- References: <bug-81403-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81403
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Jul 18 07:35:40 2017
New Revision: 250297
URL: https://gcc.gnu.org/viewcvs?rev=250297&root=gcc&view=rev
Log:
2017-07-18 Richard Biener <rguenther@suse.de>
PR tree-optimization/80620
PR tree-optimization/81403
* tree-ssa-pre.c (phi_translate_1): Clear range and points-to
info when re-using a VN table entry.
* gcc.dg/torture/pr80620.c: New testcase.
* gcc.dg/torture/pr81403.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr80620.c
trunk/gcc/testsuite/gcc.dg/torture/pr81403.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-pre.c