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* [Bug target/40783] inefficient code to accumulate function return values
[not found] <bug-40783-4@http.gcc.gnu.org/bugzilla/>
@ 2021-07-26 8:07 ` pinskia at gcc dot gnu.org
0 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-07-26 8:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40783
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=28481,
| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=27855
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
4.6 and above seems to be working.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/40783] inefficient code to accumulate function return values
2009-07-17 6:56 [Bug target/40783] New: " carrot at google dot com
2009-07-17 6:56 ` [Bug target/40783] " carrot at google dot com
2009-07-27 15:05 ` ramana at gcc dot gnu dot org
@ 2009-12-12 1:17 ` rearnsha at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: rearnsha at gcc dot gnu dot org @ 2009-12-12 1:17 UTC (permalink / raw)
To: gcc-bugs
--
rearnsha at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40783
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/40783] inefficient code to accumulate function return values
2009-07-17 6:56 [Bug target/40783] New: " carrot at google dot com
2009-07-17 6:56 ` [Bug target/40783] " carrot at google dot com
@ 2009-07-27 15:05 ` ramana at gcc dot gnu dot org
2009-12-12 1:17 ` rearnsha at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: ramana at gcc dot gnu dot org @ 2009-07-27 15:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from ramana at gcc dot gnu dot org 2009-07-27 15:05 -------
This seems to be related to the other reassoc + register pressure bugs reported
in the database. I am not sure if this is a dup of either PR28481 or PR27855
but they appear to be related.
With -fno-tree-reassoc I get the same code for both loops.
time_math:
push {r4, r5, r6, lr}
bl dumm
mov r4, #0
mov r6, #99
add r5, r0, #0
.L2:
add r0, r5, #0
bl __aeabi_f2iz
add r5, r5, #1
add r4, r4, r0
add r0, r5, #0
bl __aeabi_f2iz
add r5, r5, #1
add r4, r4, r0
add r0, r5, #0
bl __aeabi_f2iz
add r5, r5, #1
add r4, r4, r0
add r0, r5, #0
bl __aeabi_f2iz
add r5, r5, #1
add r4, r4, r0
sub r6, r6, #1
bcs .L2
bl dumm
mov r6, #99
add r5, r0, #0
.L3:
add r0, r5, #0
bl MyConvert
add r5, r5, #1
add r4, r4, r0
add r0, r5, #0
bl MyConvert
add r5, r5, #1
add r4, r4, r0
add r0, r5, #0
bl MyConvert
add r5, r5, #1
add r4, r4, r0
add r0, r5, #0
bl MyConvert
add r5, r5, #1
add r4, r4, r0
sub r6, r6, #1
bcs .L3
mov r0, r4
@ sp needed for prologue
pop {r4, r5, r6, pc}
.size time_math, .-time_math
.ident "GCC: (GNU) 4.5.0 20090727 (experimental)"
--
ramana at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dberlin at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-07-27 15:05:21
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40783
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/40783] inefficient code to accumulate function return values
2009-07-17 6:56 [Bug target/40783] New: " carrot at google dot com
@ 2009-07-17 6:56 ` carrot at google dot com
2009-07-27 15:05 ` ramana at gcc dot gnu dot org
2009-12-12 1:17 ` rearnsha at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: carrot at google dot com @ 2009-07-17 6:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from carrot at google dot com 2009-07-17 06:56 -------
Created an attachment (id=18212)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18212&action=view)
test case
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40783
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-07-26 8:07 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-40783-4@http.gcc.gnu.org/bugzilla/>
2021-07-26 8:07 ` [Bug target/40783] inefficient code to accumulate function return values pinskia at gcc dot gnu.org
2009-07-17 6:56 [Bug target/40783] New: " carrot at google dot com
2009-07-17 6:56 ` [Bug target/40783] " carrot at google dot com
2009-07-27 15:05 ` ramana at gcc dot gnu dot org
2009-12-12 1:17 ` rearnsha at gcc dot gnu dot org
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