* [Bug target/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
@ 2008-09-09 18:23 ` pinskia at gcc dot gnu dot org
2008-09-09 18:23 ` [Bug middle-end/37447] " pinskia at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2008-09-09 18:23 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Severity|normal |major
Keywords| |ra
Summary|test pr28982b.c fails |[4.4 Regression] test
|execution on power4 or later|pr28982b.c fails execution
|with ira change |on power4 or later with ira
| |change
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
2008-09-09 18:23 ` [Bug target/37447] [4.4 Regression] " pinskia at gcc dot gnu dot org
@ 2008-09-09 18:23 ` pinskia at gcc dot gnu dot org
2008-09-09 18:24 ` pinskia at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2008-09-09 18:23 UTC (permalink / raw)
To: gcc-bugs
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pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|major |blocker
Component|target |middle-end
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
2008-09-09 18:23 ` [Bug target/37447] [4.4 Regression] " pinskia at gcc dot gnu dot org
2008-09-09 18:23 ` [Bug middle-end/37447] " pinskia at gcc dot gnu dot org
@ 2008-09-09 18:24 ` pinskia at gcc dot gnu dot org
2008-09-09 20:44 ` jsm28 at gcc dot gnu dot org
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From: pinskia at gcc dot gnu dot org @ 2008-09-09 18:24 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2008-09-09 18:23 -------
Confirmed, I see it too. I configure GCC with --with-tune=cell.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
GCC target triplet|powerpc-unknown-linux-gnu |powerpc*-unknown-linux-gnu
Last reconfirmed|0000-00-00 00:00:00 |2008-09-09 18:23:20
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
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2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (2 preceding siblings ...)
2008-09-09 18:24 ` pinskia at gcc dot gnu dot org
@ 2008-09-09 20:44 ` jsm28 at gcc dot gnu dot org
2008-09-10 15:16 ` bergner at gcc dot gnu dot org
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From: jsm28 at gcc dot gnu dot org @ 2008-09-09 20:44 UTC (permalink / raw)
To: gcc-bugs
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (3 preceding siblings ...)
2008-09-09 20:44 ` jsm28 at gcc dot gnu dot org
@ 2008-09-10 15:16 ` bergner at gcc dot gnu dot org
2008-10-01 23:11 ` rth at gcc dot gnu dot org
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From: bergner at gcc dot gnu dot org @ 2008-09-10 15:16 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from bergner at gcc dot gnu dot org 2008-09-10 15:14 -------
With a mainline from today, it fails for me at -O2. Looking into it, it's
foo() that is miscompiled (I broke the 3 functions into their own files and
recompiled them), It's also the last element of results (ie, results[19] that
miscompares (141 versus expected value of 190).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (4 preceding siblings ...)
2008-09-10 15:16 ` bergner at gcc dot gnu dot org
@ 2008-10-01 23:11 ` rth at gcc dot gnu dot org
2008-10-01 23:21 ` rth at gcc dot gnu dot org
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From: rth at gcc dot gnu dot org @ 2008-10-01 23:11 UTC (permalink / raw)
To: gcc-bugs
--
rth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rth at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2008-09-09 18:23:20 |2008-10-01 23:10:20
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (5 preceding siblings ...)
2008-10-01 23:11 ` rth at gcc dot gnu dot org
@ 2008-10-01 23:21 ` rth at gcc dot gnu dot org
2008-10-02 0:22 ` janis at gcc dot gnu dot org
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From: rth at gcc dot gnu dot org @ 2008-10-01 23:21 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rth at gcc dot gnu dot org 2008-10-01 23:19 -------
Created an attachment (id=16446)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16446&action=view)
proposed patch
Please try this and see if it works. I believe it does, since I see
- stw 21,16(9)
- addis 21,1,0x8
[lots of code]
+ stw 21,16(9)
+ addis 21,1,0x8
which suggests that the memory store hasn't been promoted
above where it ought.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (6 preceding siblings ...)
2008-10-01 23:21 ` rth at gcc dot gnu dot org
@ 2008-10-02 0:22 ` janis at gcc dot gnu dot org
2008-10-02 1:45 ` luisgpm at linux dot vnet dot ibm dot com
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From: janis at gcc dot gnu dot org @ 2008-10-02 0:22 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from janis at gcc dot gnu dot org 2008-10-02 00:21 -------
The test passes with a simple build of gcc with the patch from comment#3. I
fired off a bootstrap and testsuite run.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (7 preceding siblings ...)
2008-10-02 0:22 ` janis at gcc dot gnu dot org
@ 2008-10-02 1:45 ` luisgpm at linux dot vnet dot ibm dot com
2008-10-02 11:29 ` amonakov at gcc dot gnu dot org
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From: luisgpm at linux dot vnet dot ibm dot com @ 2008-10-02 1:45 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from luisgpm at linux dot vnet dot ibm dot com 2008-10-02 01:43 -------
This problem also showed up as a CPU2000 regression in the Sixtrack benchmark
for PPC64, causing problems in the ondering of ld/st instructions.
A GCC patched with Richard's fix produced the right code and the regression is
gone.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (8 preceding siblings ...)
2008-10-02 1:45 ` luisgpm at linux dot vnet dot ibm dot com
@ 2008-10-02 11:29 ` amonakov at gcc dot gnu dot org
2008-10-02 16:24 ` janis at gcc dot gnu dot org
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From: amonakov at gcc dot gnu dot org @ 2008-10-02 11:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from amonakov at gcc dot gnu dot org 2008-10-02 11:27 -------
This patch also fixes miscompilation of vla1.f90 test on ia64 on sel-sched
branch.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (9 preceding siblings ...)
2008-10-02 11:29 ` amonakov at gcc dot gnu dot org
@ 2008-10-02 16:24 ` janis at gcc dot gnu dot org
2008-10-12 20:28 ` rth at gcc dot gnu dot org
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From: janis at gcc dot gnu dot org @ 2008-10-02 16:24 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from janis at gcc dot gnu dot org 2008-10-02 16:22 -------
The patch from comment #3 passes bootstrap and regtests on powerpc64-linux.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
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2008-10-02 16:24 ` janis at gcc dot gnu dot org
@ 2008-10-12 20:28 ` rth at gcc dot gnu dot org
2008-10-12 20:28 ` rth at gcc dot gnu dot org
2008-10-12 21:47 ` hjl at gcc dot gnu dot org
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From: rth at gcc dot gnu dot org @ 2008-10-12 20:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from rth at gcc dot gnu dot org 2008-10-12 20:27 -------
Fixed.
--
rth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (11 preceding siblings ...)
2008-10-12 20:28 ` rth at gcc dot gnu dot org
@ 2008-10-12 20:28 ` rth at gcc dot gnu dot org
2008-10-12 21:47 ` hjl at gcc dot gnu dot org
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From: rth at gcc dot gnu dot org @ 2008-10-12 20:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from rth at gcc dot gnu dot org 2008-10-12 20:27 -------
Subject: Bug 37447
Author: rth
Date: Sun Oct 12 20:26:24 2008
New Revision: 141077
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141077
Log:
PR middle-end/37447
* Makefile.in (reload1.o): Depend on EMIT_RTL_H.
* alias.c (value_addr_p, stack_addr_p): Remove.
(nonoverlapping_memrefs_p): Remove IRA special case.
* emit-rtl.c (get_spill_slot_decl, set_mem_attrs_for_spill): New.
* emit-rtl.h (set_mem_attrs_for_spill): Declare.
* reload1.c (alter_reg): Use it.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/Makefile.in
trunk/gcc/alias.c
trunk/gcc/emit-rtl.c
trunk/gcc/emit-rtl.h
trunk/gcc/reload1.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread* [Bug middle-end/37447] [4.4 Regression] test pr28982b.c fails execution on power4 or later with ira change
2008-09-09 18:05 [Bug target/37447] New: test pr28982b.c fails execution on power4 or later with ira change janis at gcc dot gnu dot org
` (12 preceding siblings ...)
2008-10-12 20:28 ` rth at gcc dot gnu dot org
@ 2008-10-12 21:47 ` hjl at gcc dot gnu dot org
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From: hjl at gcc dot gnu dot org @ 2008-10-12 21:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from hjl at gcc dot gnu dot org 2008-10-12 21:45 -------
Subject: Bug 37447
Author: hjl
Date: Sun Oct 12 21:44:33 2008
New Revision: 141079
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=141079
Log:
2008-10-12 H.J. Lu <hongjiu.lu@intel.com>
Backport from mainline:
2008-10-12 Richard Henderson <rth@redhat.com>
PR middle-end/37447
* Makefile.in (reload1.o): Depend on EMIT_RTL_H.
* alias.c (value_addr_p, stack_addr_p): Remove.
(nonoverlapping_memrefs_p): Remove IRA special case.
* emit-rtl.c (get_spill_slot_decl, set_mem_attrs_for_spill): New.
* emit-rtl.h (set_mem_attrs_for_spill): Declare.
* reload1.c (alter_reg): Use it.
Modified:
branches/ira-merge/gcc/ChangeLog.ira
branches/ira-merge/gcc/Makefile.in
branches/ira-merge/gcc/alias.c
branches/ira-merge/gcc/emit-rtl.c
branches/ira-merge/gcc/emit-rtl.h
branches/ira-merge/gcc/reload1.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37447
^ permalink raw reply [flat|nested] 15+ messages in thread