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* [Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[]
@ 2011-02-07 13:08 zsojka at seznam dot cz
2011-02-07 16:02 ` [Bug tree-optimization/47632] " rguenth at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: zsojka at seznam dot cz @ 2011-02-07 13:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47632
Summary: [4.6 Regression] ICE: verify_flow_info failed: BB 4
can not throw but has an EH edge with
-fnon-call-exceptions -ftrapv and operator new[]
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 23264
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23264
reduced testcase
Compiler output:
$ gcc -O -fnon-call-exceptions -ftrapv testcase.C
testcase.C: In function 'void foo(S<char>*)':
testcase.C:11:1: error: BB 4 can not throw but has an EH edge
testcase.C:11:1: internal compiler error: verify_flow_info failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r169824 - crash
r160000 - OK
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/47632] [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[]
2011-02-07 13:08 [Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[] zsojka at seznam dot cz
@ 2011-02-07 16:02 ` rguenth at gcc dot gnu.org
2011-02-07 16:27 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-02-07 16:02 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47632
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2011.02.07 16:01:01
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
Target Milestone|--- |4.6.0
Ever Confirmed|0 |1
--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-07 16:01:01 UTC ---
Mine. It's forwprop not cleaning up EH.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/47632] [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[]
2011-02-07 13:08 [Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[] zsojka at seznam dot cz
2011-02-07 16:02 ` [Bug tree-optimization/47632] " rguenth at gcc dot gnu.org
@ 2011-02-07 16:27 ` rguenth at gcc dot gnu.org
2011-02-08 10:45 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-02-07 16:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47632
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-07 16:20:17 UTC ---
We propagate D.2112_13 into the if, changing that to D.2112_22 != 0 and
remove the D.2112_13 def w/o cleaning up EH.
[LP 1] D.2112_13 = D.2112_22 + -1;
goto <bb 6>;
# SUCC: 6 [100.0%] (fallthru,exec) 5 (eh,exec)
...
# BLOCK 6 freq:9700
# PRED: 4 [100.0%] (fallthru,exec)
ivtmp.8_12 = ivtmp.8_14 - 1;
if (D.2112_13 != -1)
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/47632] [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[]
2011-02-07 13:08 [Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[] zsojka at seznam dot cz
2011-02-07 16:02 ` [Bug tree-optimization/47632] " rguenth at gcc dot gnu.org
2011-02-07 16:27 ` rguenth at gcc dot gnu.org
@ 2011-02-08 10:45 ` rguenth at gcc dot gnu.org
2011-02-08 10:51 ` rguenth at gcc dot gnu.org
2011-02-08 14:48 ` law at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-02-08 10:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47632
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-08 10:44:12 UTC ---
Author: rguenth
Date: Tue Feb 8 10:44:06 2011
New Revision: 169917
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169917
Log:
2011-02-08 Richard Guenther <rguenther@suse.de>
PR tree-optimization/47632
* tree-ssa-forwprop.c (remove_prop_source_from_use): Remove
unused up_to_stmt parameter, return whether cfg-cleanup is
necessary, remove EH info properly.
(forward_propagate_into_gimple_cond): Adjust caller.
(forward_propagate_into_cond): Likewise.
(forward_propagate_comparison): Likewise.
(tree_ssa_forward_propagate_single_use_vars): Make
forward_propagate_comparison case similar to the two others.
* g++.dg/opt/pr47632.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/opt/pr47632.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-forwprop.c
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/47632] [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[]
2011-02-07 13:08 [Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[] zsojka at seznam dot cz
` (2 preceding siblings ...)
2011-02-08 10:45 ` rguenth at gcc dot gnu.org
@ 2011-02-08 10:51 ` rguenth at gcc dot gnu.org
2011-02-08 14:48 ` law at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-02-08 10:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47632
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #4 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-02-08 10:47:34 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/47632] [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[]
2011-02-07 13:08 [Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[] zsojka at seznam dot cz
` (3 preceding siblings ...)
2011-02-08 10:51 ` rguenth at gcc dot gnu.org
@ 2011-02-08 14:48 ` law at redhat dot com
4 siblings, 0 replies; 6+ messages in thread
From: law at redhat dot com @ 2011-02-08 14:48 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47632
--- Comment #5 from Jeffrey A. Law <law at redhat dot com> 2011-02-08 14:45:16 UTC ---
*** Bug 47640 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 6+ messages in thread
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2011-02-07 13:08 [Bug tree-optimization/47632] New: [4.6 Regression] ICE: verify_flow_info failed: BB 4 can not throw but has an EH edge with -fnon-call-exceptions -ftrapv and operator new[] zsojka at seznam dot cz
2011-02-07 16:02 ` [Bug tree-optimization/47632] " rguenth at gcc dot gnu.org
2011-02-07 16:27 ` rguenth at gcc dot gnu.org
2011-02-08 10:45 ` rguenth at gcc dot gnu.org
2011-02-08 10:51 ` rguenth at gcc dot gnu.org
2011-02-08 14:48 ` law at redhat dot com
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