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[Bug tree-optimization/81977] [5/6/7 Regression] Issue with inline memcpy with optimizations enabled
- 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, 29 Aug 2017 07:07:18 +0000
- Subject: [Bug tree-optimization/81977] [5/6/7 Regression] Issue with inline memcpy with optimizations enabled
- Auto-submitted: auto-generated
- References: <bug-81977-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81977
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Aug 29 07:06:46 2017
New Revision: 251399
URL: https://gcc.gnu.org/viewcvs?rev=251399&root=gcc&view=rev
Log:
2017-08-29 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-08-28 Richard Biener <rguenther@suse.de>
PR tree-optimization/81977
* tree-ssa-sccvn.c (vn_reference_lookup_3): Fix look through
memcpy.
* g++.dg/torture/pr81977.C: New testcase.
2017-08-28 Richard Biener <rguenther@suse.de>
PR debug/81993
* dwarf2out.c (gen_remaining_tmpl_value_param_die_attributes):
Do nothing for removed DIEs.
Added:
branches/gcc-7-branch/gcc/testsuite/g++.dg/torture/pr81977.C
Modified:
branches/gcc-7-branch/gcc/ChangeLog
branches/gcc-7-branch/gcc/dwarf2out.c
branches/gcc-7-branch/gcc/testsuite/ChangeLog
branches/gcc-7-branch/gcc/tree-ssa-sccvn.c