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[Bug tree-optimization/65077] [4.9 Regression] memcpy generates incorrect code with floating point numbers and -O1
- 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, 16 Feb 2015 18:15:51 +0000
- Subject: [Bug tree-optimization/65077] [4.9 Regression] memcpy generates incorrect code with floating point numbers and -O1
- Auto-submitted: auto-generated
- References: <bug-65077-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65077
--- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Mon Feb 16 18:15:19 2015
New Revision: 220741
URL: https://gcc.gnu.org/viewcvs?rev=220741&root=gcc&view=rev
Log:
2015-02-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/65077
* tree-ssa-structalias.c (get_constraint_for_1): Handle
IMAGPART_EXPR, REALPART_EXPR and BIT_FIELD_REF.
(find_func_aliases): Allow float values to carry pointers again.
* gcc.dg/torture/pr65077.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr65077.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-structalias.c