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* [Bug target/17108] Missed opportunity for strength reduction
[not found] <bug-17108-8614@http.gcc.gnu.org/bugzilla/>
@ 2005-11-02 17:16 ` pinskia at gcc dot gnu dot org
2007-09-11 15:14 ` bonzini at gnu dot org
2008-01-25 22:41 ` [Bug target/17108] Store with update not generated for a simple loop pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-11-02 17:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2005-11-02 17:16 -------
All P1 enhancements not targeted towards 4.1, moving to P5.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P1 |P5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17108
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/17108] Missed opportunity for strength reduction
[not found] <bug-17108-8614@http.gcc.gnu.org/bugzilla/>
2005-11-02 17:16 ` [Bug target/17108] Missed opportunity for strength reduction pinskia at gcc dot gnu dot org
@ 2007-09-11 15:14 ` bonzini at gnu dot org
2008-01-25 22:41 ` [Bug target/17108] Store with update not generated for a simple loop pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: bonzini at gnu dot org @ 2007-09-11 15:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from bonzini at gnu dot org 2007-09-11 15:13 -------
changed 32283 from "blocks" to "depends on"; this might be fixed in 4.3
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |32283
OtherBugsDependingO|32283 |
nThis| |
Status|NEW |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17108
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/17108] Store with update not generated for a simple loop
[not found] <bug-17108-8614@http.gcc.gnu.org/bugzilla/>
2005-11-02 17:16 ` [Bug target/17108] Missed opportunity for strength reduction pinskia at gcc dot gnu dot org
2007-09-11 15:14 ` bonzini at gnu dot org
@ 2008-01-25 22:41 ` pinskia at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2008-01-25 22:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from pinskia at gcc dot gnu dot org 2008-01-25 22:35 -------
No this is still not fixed, we get now on the trunk as of yesterday:
foo:
li 0,8
li 9,0
mtctr 0
.p2align 3,,7
.L2:
stfsx 1,3,9
addi 9,9,4
bdnz .L2
blr
In fact I think this is worse, than what was done before but oh well. We still
don't generate the store with update instruction.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
Last reconfirmed|2007-07-02 21:40:02 |2008-01-25 22:35:16
date| |
Summary|Missed opportunity for |Store with update not
|strength reduction |generated for a simple loop
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17108
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/17108] Missed opportunity for strength reduction
2004-08-19 14:59 [Bug other/17108] New: Missed opportunity for strength reduction gcc-bugzilla at gcc dot gnu dot org
@ 2004-11-03 15:33 ` pinskia at gcc dot gnu dot org
0 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-11-03 15:33 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-11-03 15:33 -------
Corresponding code which gives what is wantted here is:
void foo(float *data, float d) {
long i;
data--;
for (i = 0; i < 8; i++)
{
data[1] = d;
data++;
}
}
--
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed|2004-08-19 15:25:53 |2004-11-03 15:33:17
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17108
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2008-01-25 22:36 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
[not found] <bug-17108-8614@http.gcc.gnu.org/bugzilla/>
2005-11-02 17:16 ` [Bug target/17108] Missed opportunity for strength reduction pinskia at gcc dot gnu dot org
2007-09-11 15:14 ` bonzini at gnu dot org
2008-01-25 22:41 ` [Bug target/17108] Store with update not generated for a simple loop pinskia at gcc dot gnu dot org
2004-08-19 14:59 [Bug other/17108] New: Missed opportunity for strength reduction gcc-bugzilla at gcc dot gnu dot org
2004-11-03 15:33 ` [Bug target/17108] " pinskia at gcc dot gnu dot org
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