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* [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize
@ 2010-10-25 18:09 zsojka at seznam dot cz
2010-10-26 8:25 ` [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV " hjl.tools at gmail dot com
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: zsojka at seznam dot cz @ 2010-10-25 18:09 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46167
Summary: [4.5/4.6 Regression] ICE: SEIGSEGV in
flow_bb_inside_loop_p (cfgloop.c:776) with -O
-ftree-vectorize
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Created attachment 22148
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22148
reduced testcase
valgrind output :
$ gcc -O -ftree-vectorize pr46167.c
==21601== Invalid read of size 8
==21601== at 0x5933E8: flow_bb_inside_loop_p (cfgloop.c:776)
==21601== by 0x100FA9F: vect_recog_dot_prod_pattern
(tree-vect-patterns.c:260)
==21601== by 0x10104A5: vect_pattern_recog (tree-vect-patterns.c:683)
==21601== by 0x9DE777: vect_analyze_loop (tree-vect-loop.c:1406)
==21601== by 0x9EC288: vectorize_loops (tree-vectorizer.c:219)
==21601== by 0x797A5E: execute_one_pass (passes.c:1560)
==21601== by 0x797CF4: execute_pass_list (passes.c:1615)
==21601== by 0x797D06: execute_pass_list (passes.c:1616)
==21601== by 0x797D06: execute_pass_list (passes.c:1616)
==21601== by 0x8E4B65: tree_rest_of_compilation (tree-optimize.c:422)
==21601== by 0xAAF281: cgraph_expand_function (cgraphunit.c:1494)
==21601== by 0xAB1849: cgraph_optimize (cgraphunit.c:1553)
==21601== Address 0x18 is not stack'd, malloc'd or (recently) free'd
==21601==
pr46167.c: In function 'foo':
pr46167.c:1:5: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r165915 - crash
r163636 - crash
r161659 - OK
r159696 - OK
4.5 r165781 - crash
4.5.1 - OK
4.4 r165754 - OK
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize
2010-10-25 18:09 [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize zsojka at seznam dot cz
@ 2010-10-26 8:25 ` hjl.tools at gmail dot com
2010-10-26 8:27 ` hjl.tools at gmail dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: hjl.tools at gmail dot com @ 2010-10-26 8:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46167
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2010.10.26 08:25:36
CC| |cfang at gcc dot gnu.org
Target Milestone|--- |4.6.0
Ever Confirmed|0 |1
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> 2010-10-26 08:25:36 UTC ---
It is caused by revision 163207:
http://gcc.gnu.org/ml/gcc-cvs/2010-08/msg00418.html
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize
2010-10-25 18:09 [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize zsojka at seznam dot cz
2010-10-26 8:25 ` [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV " hjl.tools at gmail dot com
@ 2010-10-26 8:27 ` hjl.tools at gmail dot com
2010-10-26 13:37 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: hjl.tools at gmail dot com @ 2010-10-26 8:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46167
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl.tools at gmail dot com
Target Milestone|4.6.0 |4.5.2
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize
2010-10-25 18:09 [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize zsojka at seznam dot cz
2010-10-26 8:25 ` [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV " hjl.tools at gmail dot com
2010-10-26 8:27 ` hjl.tools at gmail dot com
@ 2010-10-26 13:37 ` jakub at gcc dot gnu.org
2010-10-26 15:53 ` irar at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at gcc dot gnu.org @ 2010-10-26 13:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46167
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
CC| |jakub at gcc dot gnu.org
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize
2010-10-25 18:09 [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize zsojka at seznam dot cz
` (2 preceding siblings ...)
2010-10-26 13:37 ` jakub at gcc dot gnu.org
@ 2010-10-26 15:53 ` irar at gcc dot gnu.org
2010-10-26 20:16 ` irar at gcc dot gnu.org
2010-10-26 20:26 ` irar at il dot ibm.com
5 siblings, 0 replies; 7+ messages in thread
From: irar at gcc dot gnu.org @ 2010-10-26 15:53 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46167
--- Comment #2 from irar at gcc dot gnu.org 2010-10-26 15:53:33 UTC ---
Author: irar
Date: Tue Oct 26 15:53:28 2010
New Revision: 165970
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165970
Log:
PR tree-optimization/46167
* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Check that there
is basic block for the statement.
Added:
trunk/gcc/testsuite/gcc.dg/vect/O-pr46167.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/vect/vect.exp
trunk/gcc/tree-vect-patterns.c
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize
2010-10-25 18:09 [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize zsojka at seznam dot cz
` (3 preceding siblings ...)
2010-10-26 15:53 ` irar at gcc dot gnu.org
@ 2010-10-26 20:16 ` irar at gcc dot gnu.org
2010-10-26 20:26 ` irar at il dot ibm.com
5 siblings, 0 replies; 7+ messages in thread
From: irar at gcc dot gnu.org @ 2010-10-26 20:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46167
--- Comment #3 from irar at gcc dot gnu.org 2010-10-26 20:16:13 UTC ---
Author: irar
Date: Tue Oct 26 20:15:52 2010
New Revision: 165985
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=165985
Log:
PR tree-optimization/46167
* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Check that
there is basic block for the statement.
Added:
branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/vect/O-pr46167.c
Modified:
branches/gcc-4_5-branch/gcc/ChangeLog
branches/gcc-4_5-branch/gcc/testsuite/ChangeLog
branches/gcc-4_5-branch/gcc/testsuite/gcc.dg/vect/vect.exp
branches/gcc-4_5-branch/gcc/tree-vect-patterns.c
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize
2010-10-25 18:09 [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize zsojka at seznam dot cz
` (4 preceding siblings ...)
2010-10-26 20:16 ` irar at gcc dot gnu.org
@ 2010-10-26 20:26 ` irar at il dot ibm.com
5 siblings, 0 replies; 7+ messages in thread
From: irar at il dot ibm.com @ 2010-10-26 20:26 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46167
Ira Rosen <irar at il dot ibm.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
CC| |irar at il dot ibm.com
Resolution| |FIXED
--- Comment #4 from Ira Rosen <irar at il dot ibm.com> 2010-10-26 20:25:28 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2010-10-25 18:09 [Bug tree-optimization/46167] New: [4.5/4.6 Regression] ICE: SEIGSEGV in flow_bb_inside_loop_p (cfgloop.c:776) with -O -ftree-vectorize zsojka at seznam dot cz
2010-10-26 8:25 ` [Bug tree-optimization/46167] [4.5/4.6 Regression] ICE: SIGSEGV " hjl.tools at gmail dot com
2010-10-26 8:27 ` hjl.tools at gmail dot com
2010-10-26 13:37 ` jakub at gcc dot gnu.org
2010-10-26 15:53 ` irar at gcc dot gnu.org
2010-10-26 20:16 ` irar at gcc dot gnu.org
2010-10-26 20:26 ` irar at il dot ibm.com
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