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[Bug tree-optimization/60485] field-sensitive points-to confused by pointer offsetting
- 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, 11 Mar 2014 12:42:50 +0000
- Subject: [Bug tree-optimization/60485] field-sensitive points-to confused by pointer offsetting
- Auto-submitted: auto-generated
- References: <bug-60485-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60485
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Tue Mar 11 12:42:18 2014
New Revision: 208479
URL: http://gcc.gnu.org/viewcvs?rev=208479&root=gcc&view=rev
Log:
2014-03-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/60429
PR tree-optimization/60485
* tree-ssa-structalias.c (set_union_with_increment): Properly
take into account all fields that overlap the shifted vars.
(do_sd_constraint): Likewise.
(do_ds_constraint): Likewise.
(get_constraint_for_ptr_offset): Likewise.
* gcc.dg/pr60485-1.c: New testcase.
* gcc.dg/pr60485-2.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/pr60485-1.c
trunk/gcc/testsuite/gcc.dg/pr60485-2.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-structalias.c