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* [Bug optimization/13759] New: [tree-ssa] consecutive stores to the same structure field not removed
@ 2004-01-20 6:40 dann at godzilla dot ics dot uci dot edu
2004-01-20 14:58 ` [Bug optimization/13759] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: dann at godzilla dot ics dot uci dot edu @ 2004-01-20 6:40 UTC (permalink / raw)
To: gcc-bugs
struct s
{
int s;
char p;
int arr[10];
};
int foo0 (struct s * f)
{
f->s = 1;
f->s = 2;
}
the .optimized dump when compiling with -O2 is:
foo0 (f)
{
<bb 0>:
f->s = 1; /* This should be eliminated*/
f->s = 2;
return;
}
--
Summary: [tree-ssa] consecutive stores to the same structure
field not removed
Product: gcc
Version: tree-ssa
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dann at godzilla dot ics dot uci dot edu
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13759
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13759] [tree-ssa] consecutive stores to the same structure field not removed
2004-01-20 6:40 [Bug optimization/13759] New: [tree-ssa] consecutive stores to the same structure field not removed dann at godzilla dot ics dot uci dot edu
@ 2004-01-20 14:58 ` pinskia at gcc dot gnu dot org
2004-01-20 16:33 ` dberlin at dberlin dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-01-20 14:58 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-01-20 14:58 -------
Confimed, even pta does not help.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Keywords| |pessimizes-code
Last reconfirmed|0000-00-00 00:00:00 |2004-01-20 14:58:39
date| |
Target Milestone|--- |tree-ssa
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13759
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13759] [tree-ssa] consecutive stores to the same structure field not removed
2004-01-20 6:40 [Bug optimization/13759] New: [tree-ssa] consecutive stores to the same structure field not removed dann at godzilla dot ics dot uci dot edu
2004-01-20 14:58 ` [Bug optimization/13759] " pinskia at gcc dot gnu dot org
@ 2004-01-20 16:33 ` dberlin at dberlin dot org
2004-01-21 20:15 ` pinskia at gcc dot gnu dot org
2004-02-16 15:32 ` law at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: dberlin at dberlin dot org @ 2004-01-20 16:33 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From dberlin at dberlin dot org 2004-01-20 16:33 -------
Subject: Re: [tree-ssa] consecutive stores to the same structure field not removed
This, however, I will work on making PTA help.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13759
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13759] [tree-ssa] consecutive stores to the same structure field not removed
2004-01-20 6:40 [Bug optimization/13759] New: [tree-ssa] consecutive stores to the same structure field not removed dann at godzilla dot ics dot uci dot edu
2004-01-20 14:58 ` [Bug optimization/13759] " pinskia at gcc dot gnu dot org
2004-01-20 16:33 ` dberlin at dberlin dot org
@ 2004-01-21 20:15 ` pinskia at gcc dot gnu dot org
2004-02-16 15:32 ` law at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-01-21 20:15 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13759
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug optimization/13759] [tree-ssa] consecutive stores to the same structure field not removed
2004-01-20 6:40 [Bug optimization/13759] New: [tree-ssa] consecutive stores to the same structure field not removed dann at godzilla dot ics dot uci dot edu
` (2 preceding siblings ...)
2004-01-21 20:15 ` pinskia at gcc dot gnu dot org
@ 2004-02-16 15:32 ` law at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: law at gcc dot gnu dot org @ 2004-02-16 15:32 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From law at gcc dot gnu dot org 2004-02-16 15:31 -------
Fixed by recent addition of DSE pass.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13759
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2004-02-16 15:32 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2004-01-20 6:40 [Bug optimization/13759] New: [tree-ssa] consecutive stores to the same structure field not removed dann at godzilla dot ics dot uci dot edu
2004-01-20 14:58 ` [Bug optimization/13759] " pinskia at gcc dot gnu dot org
2004-01-20 16:33 ` dberlin at dberlin dot org
2004-01-21 20:15 ` pinskia at gcc dot gnu dot org
2004-02-16 15:32 ` law at gcc dot gnu dot org
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