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* [Bug tree-optimization/27332] New: ICE in try_interchange_loops with -ftree-loop-linear
@ 2006-04-26 23:04 janis at gcc dot gnu dot org
2006-04-26 23:05 ` [Bug tree-optimization/27332] " janis at gcc dot gnu dot org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: janis at gcc dot gnu dot org @ 2006-04-26 23:04 UTC (permalink / raw)
To: gcc-bugs
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
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Tests gap and twolf from SPEC CPU2000 ICE when built on powerpc64-linux with
"-O2 -ftree-loop-linear" and either -m32 or -m64. A third test, lucas, started
getting segfaults for those options at the same time. A regression hunt using
a minimized testcase (to be attached) identified this patch:
http://gcc.gnu.org/viewcvs?view=rev&rev=112437
r112437 | spop | 2006-03-28 04:19:26 +0000 (Tue, 28 Mar 2006)
Output compiling the minimized testcase:
elm3b145% /opt/gcc-nightly/trunk/bin/gcc -O2 -ftree-loop-linear -c uloop.c
uloop.c: In function ‘foo’:
uloop.c:3: internal compiler error: vector VEC(ddr_p,base) index domain error,
in try_interchange_loops at tree-loop-linear.c:183
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: ICE in try_interchange_loops with -ftree-loop-linear
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: janis at gcc dot gnu dot org
GCC target triplet: powerpc-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27332
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/27332] ICE in try_interchange_loops with -ftree-loop-linear
2006-04-26 23:04 [Bug tree-optimization/27332] New: ICE in try_interchange_loops with -ftree-loop-linear janis at gcc dot gnu dot org
@ 2006-04-26 23:05 ` janis at gcc dot gnu dot org
2006-04-26 23:10 ` [Bug tree-optimization/27332] [4.2 Regression] " pinskia at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: janis at gcc dot gnu dot org @ 2006-04-26 23:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from janis at gcc dot gnu dot org 2006-04-26 23:05 -------
Created an attachment (id=11339)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11339&action=view)
test case
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27332
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/27332] [4.2 Regression] ICE in try_interchange_loops with -ftree-loop-linear
2006-04-26 23:04 [Bug tree-optimization/27332] New: ICE in try_interchange_loops with -ftree-loop-linear janis at gcc dot gnu dot org
2006-04-26 23:05 ` [Bug tree-optimization/27332] " janis at gcc dot gnu dot org
@ 2006-04-26 23:10 ` pinskia at gcc dot gnu dot org
2006-05-10 12:26 ` sebastian dot pop at cri dot ensmp dot fr
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-04-26 23:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2006-04-26 23:10 -------
Confirmed. This was caused by the change over from varray to VEC. Looks like
we had a bug where we depend on pushing something but now we don't.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |spop at gcc dot gnu dot org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2006-04-26 23:10:20
date| |
Summary|ICE in try_interchange_loops|[4.2 Regression] ICE in
|with -ftree-loop-linear |try_interchange_loops with -
| |ftree-loop-linear
Target Milestone|--- |4.2.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27332
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/27332] [4.2 Regression] ICE in try_interchange_loops with -ftree-loop-linear
2006-04-26 23:04 [Bug tree-optimization/27332] New: ICE in try_interchange_loops with -ftree-loop-linear janis at gcc dot gnu dot org
2006-04-26 23:05 ` [Bug tree-optimization/27332] " janis at gcc dot gnu dot org
2006-04-26 23:10 ` [Bug tree-optimization/27332] [4.2 Regression] " pinskia at gcc dot gnu dot org
@ 2006-05-10 12:26 ` sebastian dot pop at cri dot ensmp dot fr
2006-05-17 12:47 ` spop at gcc dot gnu dot org
2006-05-18 4:56 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: sebastian dot pop at cri dot ensmp dot fr @ 2006-05-10 12:26 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from sebastian dot pop at cri dot ensmp dot fr 2006-05-10 12:26 -------
Created an attachment (id=11429)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11429&action=view)
fix
proposed fix. I didn't tested it other than making sure it fixed the bug.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27332
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/27332] [4.2 Regression] ICE in try_interchange_loops with -ftree-loop-linear
2006-04-26 23:04 [Bug tree-optimization/27332] New: ICE in try_interchange_loops with -ftree-loop-linear janis at gcc dot gnu dot org
` (2 preceding siblings ...)
2006-05-10 12:26 ` sebastian dot pop at cri dot ensmp dot fr
@ 2006-05-17 12:47 ` spop at gcc dot gnu dot org
2006-05-18 4:56 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: spop at gcc dot gnu dot org @ 2006-05-17 12:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from spop at gcc dot gnu dot org 2006-05-17 12:47 -------
Subject: Bug 27332
Author: spop
Date: Wed May 17 12:47:43 2006
New Revision: 113856
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113856
Log:
PR middle-end/27332
* tree-loop-linear.c (try_interchange_loops): Test for
no data dependences.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-loop-linear.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27332
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/27332] [4.2 Regression] ICE in try_interchange_loops with -ftree-loop-linear
2006-04-26 23:04 [Bug tree-optimization/27332] New: ICE in try_interchange_loops with -ftree-loop-linear janis at gcc dot gnu dot org
` (3 preceding siblings ...)
2006-05-17 12:47 ` spop at gcc dot gnu dot org
@ 2006-05-18 4:56 ` pinskia at gcc dot gnu dot org
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-05-18 4:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2006-05-18 04:56 -------
Fixed.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27332
^ permalink raw reply [flat|nested] 6+ messages in thread
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2006-04-26 23:04 [Bug tree-optimization/27332] New: ICE in try_interchange_loops with -ftree-loop-linear janis at gcc dot gnu dot org
2006-04-26 23:05 ` [Bug tree-optimization/27332] " janis at gcc dot gnu dot org
2006-04-26 23:10 ` [Bug tree-optimization/27332] [4.2 Regression] " pinskia at gcc dot gnu dot org
2006-05-10 12:26 ` sebastian dot pop at cri dot ensmp dot fr
2006-05-17 12:47 ` spop at gcc dot gnu dot org
2006-05-18 4:56 ` pinskia at gcc dot gnu dot org
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