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* [Bug tree-optimization/17141] New: *&a->b is not folded
@ 2004-08-23 4:10 pinskia at gcc dot gnu dot org
2004-08-23 4:49 ` [Bug tree-optimization/17141] " pinskia at gcc dot gnu dot org
` (8 more replies)
0 siblings, 9 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-23 4:10 UTC (permalink / raw)
To: gcc-bugs
struct A { int i; };
int
foo(struct A *locp, int str)
{
int T355, *T356;
T356 = &locp->i;
*T356 = str;
return locp->i;
}
--
Summary: *&a->b is not folded
Product: gcc
Version: 3.5.0
Status: UNCONFIRMED
Keywords: missed-optimization, TREE
Severity: enhancement
Priority: P2
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pinskia at gcc dot gnu dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
@ 2004-08-23 4:49 ` pinskia at gcc dot gnu dot org
2004-08-23 6:56 ` steven at gcc dot gnu dot org
` (7 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-23 4:49 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-23 04:49 -------
Confirmed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-08-23 04:49:30
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
2004-08-23 4:49 ` [Bug tree-optimization/17141] " pinskia at gcc dot gnu dot org
@ 2004-08-23 6:56 ` steven at gcc dot gnu dot org
2004-08-23 12:41 ` pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: steven at gcc dot gnu dot org @ 2004-08-23 6:56 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From steven at gcc dot gnu dot org 2004-08-23 06:56 -------
Apparently something else _is_ folded. And a bit early too. We've already
dropped to "T356<D1123> = (int<D0> *)locp<D1118>" even before gimplifying.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
2004-08-23 4:49 ` [Bug tree-optimization/17141] " pinskia at gcc dot gnu dot org
2004-08-23 6:56 ` steven at gcc dot gnu dot org
@ 2004-08-23 12:41 ` pinskia at gcc dot gnu dot org
2004-09-01 16:29 ` pinskia at gcc dot gnu dot org
` (5 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-08-23 12:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-08-23 12:41 -------
Actually I just fixed that yesterday.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
` (2 preceding siblings ...)
2004-08-23 12:41 ` pinskia at gcc dot gnu dot org
@ 2004-09-01 16:29 ` pinskia at gcc dot gnu dot org
2004-09-11 1:16 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-01 16:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-01 16:29 -------
Mine, I have a simple pass which does this.
--
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |pinskia at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
` (3 preceding siblings ...)
2004-09-01 16:29 ` pinskia at gcc dot gnu dot org
@ 2004-09-11 1:16 ` pinskia at gcc dot gnu dot org
2004-09-21 2:41 ` pinskia at gcc dot gnu dot org
` (3 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-11 1:16 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-11 01:16 -------
Actually I got my tree combiner to do the work for me.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
` (4 preceding siblings ...)
2004-09-11 1:16 ` pinskia at gcc dot gnu dot org
@ 2004-09-21 2:41 ` pinskia at gcc dot gnu dot org
2005-03-23 20:10 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-09-21 2:41 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-09-21 02:41 -------
This shows up in PR 8361.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
` (5 preceding siblings ...)
2004-09-21 2:41 ` pinskia at gcc dot gnu dot org
@ 2005-03-23 20:10 ` pinskia at gcc dot gnu dot org
2005-05-17 16:39 ` law at redhat dot com
2005-06-05 7:52 ` pinskia at gcc dot gnu dot org
8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-03-23 20:10 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2005-03-23 20:10 -------
And here is a testcase for a missed optimization on the TREE level:
void abort (void);
struct a
{
int i;
} *a;
int f(void)
{
int *ii = &a->i;
void *l;
a->i = 1;
if (*ii)
l = &&l1;
else
l = &&l2;
goto *l;
l1:
return 0;
l2:
abort ();
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
` (6 preceding siblings ...)
2005-03-23 20:10 ` pinskia at gcc dot gnu dot org
@ 2005-05-17 16:39 ` law at redhat dot com
2005-06-05 7:52 ` pinskia at gcc dot gnu dot org
8 siblings, 0 replies; 11+ messages in thread
From: law at redhat dot com @ 2005-05-17 16:39 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From law at redhat dot com 2005-05-17 16:39 -------
Fixed with this patch:
http://gcc.gnu.org/ml/gcc-patches/2005-05/msg01726.html
--
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
` (7 preceding siblings ...)
2005-05-17 16:39 ` law at redhat dot com
@ 2005-06-05 7:52 ` pinskia at gcc dot gnu dot org
8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-06-05 7:52 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/17141] *&a->b is not folded
[not found] <bug-17141-4@http.gcc.gnu.org/bugzilla/>
@ 2014-10-31 4:02 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu.org @ 2014-10-31 4:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=17141
Bug 17141 depends on bug 15459, which changed state.
Bug 15459 Summary: [meta-bug] there should be a tree combiner like the rtl one
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=15459
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2014-10-31 4:02 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-08-23 4:10 [Bug tree-optimization/17141] New: *&a->b is not folded pinskia at gcc dot gnu dot org
2004-08-23 4:49 ` [Bug tree-optimization/17141] " pinskia at gcc dot gnu dot org
2004-08-23 6:56 ` steven at gcc dot gnu dot org
2004-08-23 12:41 ` pinskia at gcc dot gnu dot org
2004-09-01 16:29 ` pinskia at gcc dot gnu dot org
2004-09-11 1:16 ` pinskia at gcc dot gnu dot org
2004-09-21 2:41 ` pinskia at gcc dot gnu dot org
2005-03-23 20:10 ` pinskia at gcc dot gnu dot org
2005-05-17 16:39 ` law at redhat dot com
2005-06-05 7:52 ` pinskia at gcc dot gnu dot org
[not found] <bug-17141-4@http.gcc.gnu.org/bugzilla/>
2014-10-31 4:02 ` pinskia at gcc dot gnu.org
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