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From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/27090] FRE does not look past previous type casts
Date: Thu, 04 May 2006 13:57:00 -0000 [thread overview]
Message-ID: <20060504135707.6575.qmail@sourceware.org> (raw)
In-Reply-To: <bug-27090-10053@http.gcc.gnu.org/bugzilla/>
------- Comment #10 from rguenth at gcc dot gnu dot org 2006-05-04 13:57 -------
Subject: Bug 27090
Author: rguenth
Date: Thu May 4 13:56:52 2006
New Revision: 113527
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113527
Log:
2006-05-04 Richard Guenther <rguenther@suse.de>
PR tree-optimization/14287
PR tree-optimization/14844
PR tree-optimization/19792
PR tree-optimization/21608
PR tree-optimization/27090
* tree-ssa-pre.c (try_combine_conversion): New function.
(compute_avail): After constructing the value-handle
expression, use try_combine_conversion to combine NOP_EXPRs
with previous value-handle expressions and use the result if it
is available.
* gcc.dg/tree-ssa/ssa-fre-1.c: New testcase.
* gcc.dg/tree-ssa/ssa-fre-2.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-3.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-4.c: Likewise.
* gcc.dg/tree-ssa/ssa-fre-5.c: Likewise.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-1.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-2.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-3.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-4.c
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-5.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-pre.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27090
next prev parent reply other threads:[~2006-05-04 13:57 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-09 8:41 [Bug tree-optimization/27090] New: FRE does not value number effective types rguenth at gcc dot gnu dot org
2006-04-09 8:41 ` [Bug tree-optimization/27090] " rguenth at gcc dot gnu dot org
2006-04-09 9:03 ` rguenth at gcc dot gnu dot org
2006-04-09 17:40 ` [Bug tree-optimization/27090] FRE does loop past previous type casts pinskia at gcc dot gnu dot org
2006-04-10 18:12 ` pinskia at gcc dot gnu dot org
2006-04-11 1:12 ` [Bug tree-optimization/27090] FRE does not look " pinskia at gcc dot gnu dot org
2006-04-11 1:21 ` pinskia at gcc dot gnu dot org
2006-04-11 1:33 ` pinskia at gcc dot gnu dot org
2006-04-20 13:53 ` rguenth at gcc dot gnu dot org
2006-04-20 13:54 ` rguenth at gcc dot gnu dot org
2006-04-21 14:46 ` rguenth at gcc dot gnu dot org
2006-05-04 13:57 ` rguenth at gcc dot gnu dot org [this message]
2006-05-04 15:01 ` rguenth at gcc dot gnu dot org
2006-06-19 20:15 ` rguenth at gcc dot gnu dot org
[not found] <bug-27090-4@http.gcc.gnu.org/bugzilla/>
2014-10-31 4:02 ` pinskia at gcc dot gnu.org
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