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* [Bug optimization/7003] [ppc] address of array loaded int register twice without any need
[not found] <20020612052601.7003.fshvaige@cisco.com>
@ 2003-08-16 16:21 ` pinskia at gcc dot gnu dot org
2003-09-29 16:09 ` segher at koffie dot nl
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-08-16 16:21 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7003
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |enhancement
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/7003] [ppc] address of array loaded int register twice without any need
[not found] <20020612052601.7003.fshvaige@cisco.com>
2003-08-16 16:21 ` [Bug optimization/7003] [ppc] address of array loaded int register twice without any need pinskia at gcc dot gnu dot org
@ 2003-09-29 16:09 ` segher at koffie dot nl
2004-03-14 22:42 ` pinskia at gcc dot gnu dot org
2004-04-08 15:44 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: segher at koffie dot nl @ 2003-09-29 16:09 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7003
------- Additional Comments From segher at koffie dot nl 2003-09-29 15:52 -------
GCC needs two GCSE passes to get rid of this; the
first pass to get rid of the high-half load, and the
second for the full load. Try --param max-gcse-passes=2 .
Maybe this should be default on PowerPC 32-bit?
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/7003] [ppc] address of array loaded int register twice without any need
[not found] <20020612052601.7003.fshvaige@cisco.com>
2003-08-16 16:21 ` [Bug optimization/7003] [ppc] address of array loaded int register twice without any need pinskia at gcc dot gnu dot org
2003-09-29 16:09 ` segher at koffie dot nl
@ 2004-03-14 22:42 ` pinskia at gcc dot gnu dot org
2004-04-08 15:44 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-03-14 22:42 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-03-14 22:42 -------
Sounds like MIPS have some of the same issues:
http://gcc.gnu.org/ml/gcc-patches/2004-03/msg01040.html
--
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7003
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/7003] [ppc] address of array loaded int register twice without any need
[not found] <20020612052601.7003.fshvaige@cisco.com>
` (2 preceding siblings ...)
2004-03-14 22:42 ` pinskia at gcc dot gnu dot org
@ 2004-04-08 15:44 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-04-08 15:44 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-04-08 15:44 -------
The way to fix this do the following conversion and make sure that the address is not prograted back
like it is correctly on the tree-ssa:
unsigned char *f1 (unsigned char *s)
{
const char *flags1 = &flags[0];
while (flags1[*++s]);
while (!flags1[*++s]);
return s;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7003
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/7003] [ppc] address of array loaded int register twice without any need
@ 2003-05-24 0:50 pinskia@physics.uc.edu
0 siblings, 0 replies; 6+ messages in thread
From: pinskia@physics.uc.edu @ 2003-05-24 0:50 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7003
------- Additional Comments From pinskia@physics.uc.edu 2003-05-24 00:44 -------
confirmed on mainline (20030523).
------- You are receiving this mail because: -------
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/7003] [ppc] address of array loaded int register twice without any need
@ 2003-05-23 21:24 pinskia@physics.uc.edu
0 siblings, 0 replies; 6+ messages in thread
From: pinskia@physics.uc.edu @ 2003-05-23 21:24 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=7003
pinskia@physics.uc.edu changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2003-05-23 21:14:46
date| |
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.
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end of thread, other threads:[~2004-04-08 15:44 UTC | newest]
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[not found] <20020612052601.7003.fshvaige@cisco.com>
2003-08-16 16:21 ` [Bug optimization/7003] [ppc] address of array loaded int register twice without any need pinskia at gcc dot gnu dot org
2003-09-29 16:09 ` segher at koffie dot nl
2004-03-14 22:42 ` pinskia at gcc dot gnu dot org
2004-04-08 15:44 ` pinskia at gcc dot gnu dot org
2003-05-24 0:50 pinskia@physics.uc.edu
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2003-05-23 21:24 pinskia@physics.uc.edu
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