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* [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os
@ 2011-04-14 8:57 sebastian.huber@embedded-brains.de
2011-04-14 10:31 ` [Bug rtl-optimization/48604] [4.6 regression] wrong code with -frename-registers ebotcazou at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: sebastian.huber@embedded-brains.de @ 2011-04-14 8:57 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48604
Summary: [PowerPC] Wrong code with -frename-registers -Os
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: sebastian.huber@embedded-brains.de
Target: powerpc-rtems4.11-gcc
Created attachment 23977
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23977
C source code corresponding to the assembler code.
Creating an assembler file with
powerpc-rtems4.11-gcc -S -frename-registers -Os qmmpagef.i
generates wrong code.
In fmm_setup_mmu_fn:
.L20:
addi 31,1,304
mr 3,28
b _restgpr_18_x
.size fmm_setup_mmu_fn, .-fmm_setup_mmu_fn
Usage of register 31 is wrong here, should be register 11. Compiling with
-fno-rename-registers leads to valid code.
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug rtl-optimization/48604] [4.6 regression] wrong code with -frename-registers
2011-04-14 8:57 [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os sebastian.huber@embedded-brains.de
@ 2011-04-14 10:31 ` ebotcazou at gcc dot gnu.org
2011-04-14 10:31 ` ebotcazou at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-04-14 10:31 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48604
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|powerpc-rtems4.11-gcc |powerpc-rtems4.11
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.04.14 10:31:18
Component|target |rtl-optimization
CC| |ebotcazou at gcc dot
| |gnu.org
Ever Confirmed|0 |1
Summary|[PowerPC] Wrong code with |[4.6 regression] wrong code
|-frename-registers -Os |with -frename-registers
Target Milestone|--- |4.6.1
--- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-04-14 10:31:18 UTC ---
Confirmed.
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug rtl-optimization/48604] [4.6 regression] wrong code with -frename-registers
2011-04-14 8:57 [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os sebastian.huber@embedded-brains.de
2011-04-14 10:31 ` [Bug rtl-optimization/48604] [4.6 regression] wrong code with -frename-registers ebotcazou at gcc dot gnu.org
@ 2011-04-14 10:31 ` ebotcazou at gcc dot gnu.org
2011-04-14 10:56 ` [Bug rtl-optimization/48604] [4.5/4.6 " ebotcazou at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-04-14 10:31 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48604
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |ebotcazou at gcc dot
|gnu.org |gnu.org
--- Comment #2 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-04-14 10:31:52 UTC ---
Investigating.
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug rtl-optimization/48604] [4.5/4.6 regression] wrong code with -frename-registers
2011-04-14 8:57 [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os sebastian.huber@embedded-brains.de
2011-04-14 10:31 ` [Bug rtl-optimization/48604] [4.6 regression] wrong code with -frename-registers ebotcazou at gcc dot gnu.org
2011-04-14 10:31 ` ebotcazou at gcc dot gnu.org
@ 2011-04-14 10:56 ` ebotcazou at gcc dot gnu.org
2011-04-21 9:26 ` [Bug target/48604] [4.5/4.6/4.7 " rguenth at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-04-14 10:56 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48604
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.4.5
Target Milestone|4.6.1 |4.5.3
Summary|[4.6 regression] wrong code |[4.5/4.6 regression] wrong
|with -frename-registers |code with
| |-frename-registers
Known to fail| |4.5.2, 4.6.0
--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-04-14 10:56:04 UTC ---
On the 4.5 branch:
.L20:
addi 0,1,304
mr 3,28
b _restgpr_18_x
.size fmm_setup_mmu_fn, .-fmm_setup_mmu_fn
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug target/48604] [4.5/4.6/4.7 regression] wrong code with -frename-registers
2011-04-14 8:57 [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os sebastian.huber@embedded-brains.de
` (2 preceding siblings ...)
2011-04-14 10:56 ` [Bug rtl-optimization/48604] [4.5/4.6 " ebotcazou at gcc dot gnu.org
@ 2011-04-21 9:26 ` rguenth at gcc dot gnu.org
2011-04-26 17:32 ` edmar at freescale dot com
2011-04-27 10:10 ` ebotcazou at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-04-21 9:26 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48604
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug target/48604] [4.5/4.6/4.7 regression] wrong code with -frename-registers
2011-04-14 8:57 [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os sebastian.huber@embedded-brains.de
` (3 preceding siblings ...)
2011-04-21 9:26 ` [Bug target/48604] [4.5/4.6/4.7 " rguenth at gcc dot gnu.org
@ 2011-04-26 17:32 ` edmar at freescale dot com
2011-04-27 10:10 ` ebotcazou at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: edmar at freescale dot com @ 2011-04-26 17:32 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48604
Edmar Wienskoski <edmar at freescale dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |edmar at freescale dot com
--- Comment #4 from Edmar Wienskoski <edmar at freescale dot com> 2011-04-26 17:31:38 UTC ---
You may want to take a look at:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44618
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug target/48604] [4.5/4.6/4.7 regression] wrong code with -frename-registers
2011-04-14 8:57 [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os sebastian.huber@embedded-brains.de
` (4 preceding siblings ...)
2011-04-26 17:32 ` edmar at freescale dot com
@ 2011-04-27 10:10 ` ebotcazou at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2011-04-27 10:10 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48604
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |DUPLICATE
--- Comment #5 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-04-27 09:18:29 UTC ---
Indeed.
*** This bug has been marked as a duplicate of bug 44618 ***
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2011-04-27 10:10 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
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2011-04-14 8:57 [Bug target/48604] New: [PowerPC] Wrong code with -frename-registers -Os sebastian.huber@embedded-brains.de
2011-04-14 10:31 ` [Bug rtl-optimization/48604] [4.6 regression] wrong code with -frename-registers ebotcazou at gcc dot gnu.org
2011-04-14 10:31 ` ebotcazou at gcc dot gnu.org
2011-04-14 10:56 ` [Bug rtl-optimization/48604] [4.5/4.6 " ebotcazou at gcc dot gnu.org
2011-04-21 9:26 ` [Bug target/48604] [4.5/4.6/4.7 " rguenth at gcc dot gnu.org
2011-04-26 17:32 ` edmar at freescale dot com
2011-04-27 10:10 ` ebotcazou at gcc dot gnu.org
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