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* [Bug tree-optimization/37541] VRP fails to optimize single-bit ranges
[not found] <bug-37541-4@http.gcc.gnu.org/bugzilla/>
@ 2012-06-29 13:57 ` rguenth at gcc dot gnu.org
2012-06-29 13:58 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-06-29 13:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37541
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-29 13:57:04 UTC ---
Author: rguenth
Date: Fri Jun 29 13:56:51 2012
New Revision: 189075
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189075
Log:
2012-06-29 Richard Guenther <rguenther@suse.de>
PR tree-optimization/37541
* gcc.dg/tree-ssa/pr37508.c: Adjust and un-XFAIL.
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr37508.c
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/37541] VRP fails to optimize single-bit ranges
[not found] <bug-37541-4@http.gcc.gnu.org/bugzilla/>
2012-06-29 13:57 ` [Bug tree-optimization/37541] VRP fails to optimize single-bit ranges rguenth at gcc dot gnu.org
@ 2012-06-29 13:58 ` rguenth at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-06-29 13:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37541
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-06-29 13:57:53 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug tree-optimization/37541] VRP fails to optimize single-bit ranges
2008-09-16 12:37 [Bug tree-optimization/37541] New: " rguenth at gcc dot gnu dot org
@ 2010-07-28 14:43 ` rguenth at gcc dot gnu dot org
0 siblings, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-07-28 14:43 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2010-07-28 14:43 -------
This seems fixed, just the optimizations in question are already performed
partly by FRE but one,
test2 (struct foo2 * x)
{
...
<bb 2>:
D.2745_3 = BIT_FIELD_REF <*x_2(D), 8, 0>;
D.2746_4 = D.2745_3 & 1;
if (D.2746_4 == 0)
goto <bb 5>;
else
goto <bb 3>;
<bb 3>:
D.2750_6 = x_2(D)->i;
where for some reason our strange aggregate-bit-field-ref folding triggers
only for one load.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-07-28 14:43:02
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37541
^ permalink raw reply [flat|nested] 3+ messages in thread
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[not found] <bug-37541-4@http.gcc.gnu.org/bugzilla/>
2012-06-29 13:57 ` [Bug tree-optimization/37541] VRP fails to optimize single-bit ranges rguenth at gcc dot gnu.org
2012-06-29 13:58 ` rguenth at gcc dot gnu.org
2008-09-16 12:37 [Bug tree-optimization/37541] New: " rguenth at gcc dot gnu dot org
2010-07-28 14:43 ` [Bug tree-optimization/37541] " rguenth at gcc dot gnu dot org
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