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* [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
@ 2009-10-09 9:58 kenneth dot hoste at elis dot ugent dot be
2009-10-09 9:59 ` [Bug c/41643] " kenneth dot hoste at elis dot ugent dot be
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: kenneth dot hoste at elis dot ugent dot be @ 2009-10-09 9:58 UTC (permalink / raw)
To: gcc-bugs
Using -fno-tree-dce in combination with any of -O2/-O3/-Os causes GCC 4.4.1 to
segfault when compiling the 176.gcc benchmark, more specifically when compiling
the combine.c source file. The same occurs when using -O1 -fno-tree-dce
-foptimize-sibling-calls.
combine.c:7182: internal compiler error: Segmentation fault
A reduced test case for this issue is attached.
--
Summary: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when
using -fno-tree-dce
Product: gcc
Version: 4.4.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kenneth dot hoste at elis dot ugent dot be
GCC build triplet: x86_64-unknown-linux-gnu
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug c/41643] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
@ 2009-10-09 9:59 ` kenneth dot hoste at elis dot ugent dot be
2009-10-09 10:49 ` [Bug tree-optimization/41643] " rguenth at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: kenneth dot hoste at elis dot ugent dot be @ 2009-10-09 9:59 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from kenneth dot hoste at elis dot ugent dot be 2009-10-09 09:58 -------
Created an attachment (id=18759)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18759&action=view)
reduced testcase for this bug
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/41643] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
2009-10-09 9:59 ` [Bug c/41643] " kenneth dot hoste at elis dot ugent dot be
@ 2009-10-09 10:49 ` rguenth at gcc dot gnu dot org
2009-11-04 16:01 ` [Bug tree-optimization/41643] [4.4 Regression] " rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-10-09 10:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2009-10-09 10:49 -------
Doesn't happen on trunk. But, confirmed.
../../gcc44-g/gcc/cc1 -quiet bug.i -O2 -fno-tree-dce
bug.i: In function 'f':
bug.i:5: error: missing PHI def
add_acc.0_10 = PHI <0(0), (5)>
bug.i:5: error: missing PHI def
x_8 = PHI <x_13(D)(0), (5)>
bug.i:5: internal compiler error: verify_stmts failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
After the tail-recursion pass.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |ice-on-valid-code
Known to fail| |4.4.1
Known to work| |4.5.0
Last reconfirmed|0000-00-00 00:00:00 |2009-10-09 10:49:19
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
2009-10-09 9:59 ` [Bug c/41643] " kenneth dot hoste at elis dot ugent dot be
2009-10-09 10:49 ` [Bug tree-optimization/41643] " rguenth at gcc dot gnu dot org
@ 2009-11-04 16:01 ` rguenth at gcc dot gnu dot org
2009-11-07 15:00 ` jakub at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-11-04 16:01 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work|4.5.0 |4.3.4 4.5.0
Summary|ICE (segmentation fault) for|[4.4 Regression] ICE
|SPEC CPU2000's 176.gcc when |(segmentation fault) for
|using -fno-tree-dce |SPEC CPU2000's 176.gcc when
| |using -fno-tree-dce
Target Milestone|--- |4.4.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
` (2 preceding siblings ...)
2009-11-04 16:01 ` [Bug tree-optimization/41643] [4.4 Regression] " rguenth at gcc dot gnu dot org
@ 2009-11-07 15:00 ` jakub at gcc dot gnu dot org
2009-11-07 17:40 ` jakub at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-11-07 15:00 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from jakub at gcc dot gnu dot org 2009-11-07 15:00 -------
Fixed by r145494, testing a backport.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2009-10-09 10:49:19 |2009-11-07 15:00:07
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
` (3 preceding siblings ...)
2009-11-07 15:00 ` jakub at gcc dot gnu dot org
@ 2009-11-07 17:40 ` jakub at gcc dot gnu dot org
2009-11-07 17:41 ` jakub at gcc dot gnu dot org
2009-11-07 17:42 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-11-07 17:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from jakub at gcc dot gnu dot org 2009-11-07 17:40 -------
Subject: Bug 41643
Author: jakub
Date: Sat Nov 7 17:39:48 2009
New Revision: 153996
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153996
Log:
PR tree-optimization/41643
Backport from mainline
2009-04-03 Richard Guenther <rguenther@suse.de>
* tree-tailcall.c (tree_optimize_tail_calls_1): Also split the
edge from the entry block if we have degenerate PHI nodes in
the first basic block.
* gcc.dg/pr41643.c: New test.
Added:
branches/gcc-4_4-branch/gcc/testsuite/gcc.dg/pr41643.c
Modified:
branches/gcc-4_4-branch/gcc/ChangeLog
branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
branches/gcc-4_4-branch/gcc/tree-tailcall.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
` (4 preceding siblings ...)
2009-11-07 17:40 ` jakub at gcc dot gnu dot org
@ 2009-11-07 17:41 ` jakub at gcc dot gnu dot org
2009-11-07 17:42 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-11-07 17:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jakub at gcc dot gnu dot org 2009-11-07 17:41 -------
Subject: Bug 41643
Author: jakub
Date: Sat Nov 7 17:41:07 2009
New Revision: 153997
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=153997
Log:
PR tree-optimization/41643
* gcc.dg/pr41643.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr41643.c
Modified:
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/41643] [4.4 Regression] ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce
2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
` (5 preceding siblings ...)
2009-11-07 17:41 ` jakub at gcc dot gnu dot org
@ 2009-11-07 17:42 ` jakub at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jakub at gcc dot gnu dot org @ 2009-11-07 17:42 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from jakub at gcc dot gnu dot org 2009-11-07 17:41 -------
Fixed.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41643
^ permalink raw reply [flat|nested] 8+ messages in thread
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2009-10-09 9:58 [Bug c/41643] New: ICE (segmentation fault) for SPEC CPU2000's 176.gcc when using -fno-tree-dce kenneth dot hoste at elis dot ugent dot be
2009-10-09 9:59 ` [Bug c/41643] " kenneth dot hoste at elis dot ugent dot be
2009-10-09 10:49 ` [Bug tree-optimization/41643] " rguenth at gcc dot gnu dot org
2009-11-04 16:01 ` [Bug tree-optimization/41643] [4.4 Regression] " rguenth at gcc dot gnu dot org
2009-11-07 15:00 ` jakub at gcc dot gnu dot org
2009-11-07 17:40 ` jakub at gcc dot gnu dot org
2009-11-07 17:41 ` jakub at gcc dot gnu dot org
2009-11-07 17:42 ` jakub at gcc dot gnu dot org
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