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[Bug tree-optimization/31146] forwprop does not look through casts
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 May 2007 09:13:01 -0000
- Subject: [Bug tree-optimization/31146] forwprop does not look through casts
- References: <bug-31146-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #9 from rguenth at gcc dot gnu dot org 2007-05-02 10:13 -------
Subject: Bug 31146
Author: rguenth
Date: Wed May 2 09:12:49 2007
New Revision: 124349
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=124349
Log:
2007-05-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/31146
* tree-ssa-forwprop.c (forward_propagate_addr_expr_1): New
argument, single_use_p. If we have a single use that is
a conversion to the definition rhs type, propagate that rhs.
(forward_propagate_addr_expr): Pass single_use_p argument
to forward_propagate_addr_expr_1.
* g++.dg/tree-ssa/pr31146-2.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/tree-ssa/pr31146-2.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-forwprop.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31146