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[Bug tree-optimization/81884] [6/7 Regression] Invalid code generation with zero size arrays or flexible array members
- 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: Mon, 21 Aug 2017 07:38:34 +0000
- Subject: [Bug tree-optimization/81884] [6/7 Regression] Invalid code generation with zero size arrays or flexible array members
- Auto-submitted: auto-generated
- References: <bug-81884-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81884
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Aug 21 07:37:59 2017
New Revision: 251217
URL: https://gcc.gnu.org/viewcvs?rev=251217&root=gcc&view=rev
Log:
2017-08-21 Richard Biener <rguenther@suse.de>
PR middle-end/81884
* tree-ssa-alias.c (stmt_kills_ref_p): Handle array accesses
at struct end conservatively when comparing common bases.
* g++.dg/torture/pr81884.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/torture/pr81884.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-alias.c