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* [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved
@ 2012-11-11 21:06 mans at mansr dot com
2012-11-11 21:07 ` [Bug target/55276] " mans at mansr dot com
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: mans at mansr dot com @ 2012-11-11 21:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55276
Bug #: 55276
Summary: [4.8 regression] ppc: callee-saved vector registers
not preserved
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: mans@mansr.com
Created attachment 28662
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28662
Preserve callee-saved vector registers even when vrsave is not in use
Since r191986 the callee-saved vector registers v20-v31 are not preserved when
TARGET_ALTIVEC_VRSAVE is unset. The attached patch fixes this.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/55276] [4.8 regression] ppc: callee-saved vector registers not preserved
2012-11-11 21:06 [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved mans at mansr dot com
@ 2012-11-11 21:07 ` mans at mansr dot com
2012-11-19 15:40 ` dje at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: mans at mansr dot com @ 2012-11-11 21:07 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55276
--- Comment #1 from Mans Rullgard <mans at mansr dot com> 2012-11-11 21:07:12 UTC ---
Created attachment 28663
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28663
Test case
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/55276] [4.8 regression] ppc: callee-saved vector registers not preserved
2012-11-11 21:06 [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved mans at mansr dot com
2012-11-11 21:07 ` [Bug target/55276] " mans at mansr dot com
@ 2012-11-19 15:40 ` dje at gcc dot gnu.org
2012-11-19 16:59 ` dje at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dje at gcc dot gnu.org @ 2012-11-19 15:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55276
David Edelsohn <dje at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-11-19
Ever Confirmed|0 |1
--- Comment #2 from David Edelsohn <dje at gcc dot gnu.org> 2012-11-19 15:40:05 UTC ---
The patch looks correct, but the testcase only demonstrates the problem by
looking at assembly, not by checking for correct results.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/55276] [4.8 regression] ppc: callee-saved vector registers not preserved
2012-11-11 21:06 [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved mans at mansr dot com
2012-11-11 21:07 ` [Bug target/55276] " mans at mansr dot com
2012-11-19 15:40 ` dje at gcc dot gnu.org
@ 2012-11-19 16:59 ` dje at gcc dot gnu.org
2012-11-19 18:17 ` dje at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dje at gcc dot gnu.org @ 2012-11-19 16:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55276
--- Comment #3 from David Edelsohn <dje at gcc dot gnu.org> 2012-11-19 16:58:42 UTC ---
Author: dje
Date: Mon Nov 19 16:58:31 2012
New Revision: 193628
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193628
Log:
2012-11-19 Mans Rullgard <mans@mansr.com>
PR target/55276
* config/rs6000/rs6000.c (rs6000_stack_info): Always set vrsave_mask
for TARGET_ALTIVEC_ABI. Zero vrsave_save_offset if
!TARGET_ALTIVEC_VRSAVE.
(rs6000_emit_prologue): For SAVE_INLINE_VLRs, check vrsave_size
not vrsave_mask.
Modified:
trunk/gcc/ChangeLog
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/55276] [4.8 regression] ppc: callee-saved vector registers not preserved
2012-11-11 21:06 [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved mans at mansr dot com
` (2 preceding siblings ...)
2012-11-19 16:59 ` dje at gcc dot gnu.org
@ 2012-11-19 18:17 ` dje at gcc dot gnu.org
2012-11-25 15:55 ` rguenth at gcc dot gnu.org
2012-12-07 9:44 ` rguenth at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: dje at gcc dot gnu.org @ 2012-11-19 18:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55276
David Edelsohn <dje at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
--- Comment #4 from David Edelsohn <dje at gcc dot gnu.org> 2012-11-19 18:16:32 UTC ---
I committed the patch, but this should have a testcase as well.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/55276] [4.8 regression] ppc: callee-saved vector registers not preserved
2012-11-11 21:06 [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved mans at mansr dot com
` (3 preceding siblings ...)
2012-11-19 18:17 ` dje at gcc dot gnu.org
@ 2012-11-25 15:55 ` rguenth at gcc dot gnu.org
2012-12-07 9:44 ` rguenth at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-11-25 15:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55276
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.8.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug target/55276] [4.8 regression] ppc: callee-saved vector registers not preserved
2012-11-11 21:06 [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved mans at mansr dot com
` (4 preceding siblings ...)
2012-11-25 15:55 ` rguenth at gcc dot gnu.org
@ 2012-12-07 9:44 ` rguenth at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-07 9:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55276
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-07 09:43:36 UTC ---
Fixed anyway.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2012-11-11 21:06 [Bug target/55276] New: [4.8 regression] ppc: callee-saved vector registers not preserved mans at mansr dot com
2012-11-11 21:07 ` [Bug target/55276] " mans at mansr dot com
2012-11-19 15:40 ` dje at gcc dot gnu.org
2012-11-19 16:59 ` dje at gcc dot gnu.org
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