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* [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
@ 2012-11-14 21:54 zsojka at seznam dot cz
2012-11-14 22:16 ` [Bug middle-end/55331] " dominiq at lps dot ens.fr
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: zsojka at seznam dot cz @ 2012-11-14 21:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
Bug #: 55331
Summary: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in
substitute_and_fold with -O2 -fno-tree-fre
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Created attachment 28691
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28691
autoreduced testcase
Compiler output:
$ gcc -O2 -fno-tree-fre testcase-min7.ii -wrapper
valgrind,-q,--num-callers=40,--track-origins=yes -w
==4620== Invalid read of size 1
==4620== at 0xCEBDBD: substitute_and_fold(tree_node* (*)(tree_node*), bool
(*)(gimple_stmt_iterator*), bool) (gimple.h:1146)
==4620== by 0xC857C2: execute_copy_prop() (tree-ssa-copy.c:772)
==4620== by 0xADBB7A: execute_one_pass(opt_pass*) (passes.c:2339)
==4620== by 0xADBF94: execute_pass_list(opt_pass*) (passes.c:2400)
==4620== by 0xADBFA6: execute_pass_list(opt_pass*) (passes.c:2401)
==4620== by 0xADBFA6: execute_pass_list(opt_pass*) (passes.c:2401)
==4620== by 0x85E4F1: expand_function(cgraph_node*) (cgraphunit.c:1643)
==4620== by 0x8602A6: compile() (cgraphunit.c:1747)
==4620== by 0x860949: finalize_compilation_unit() (cgraphunit.c:2122)
==4620== by 0x67717E: cp_write_global_declarations() (decl2.c:4287)
==4620== by 0xBC527C: compile_file() (toplev.c:559)
==4620== by 0xBC7139: toplev_main(int, char**) (toplev.c:1881)
==4620== by 0x5A364BC: (below main) (in /lib64/libc-2.15.so)
==4620== Address 0x0 is not stack'd, malloc'd or (recently) free'd
==4620==
testcase-min7.ii: In function 'void test01()':
testcase-min7.ii:253:1: internal compiler error: Segmentation fault
test01 ()
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r193495 - crash
4.7 r191640 - crash
4.6 r191640 - crash
4.5 r191640 - OK
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
@ 2012-11-14 22:16 ` dominiq at lps dot ens.fr
2012-11-15 11:52 ` jakub at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: dominiq at lps dot ens.fr @ 2012-11-14 22:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-11-14
Ever Confirmed|0 |1
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2012-11-14 22:16:00 UTC ---
Confirmed:
4.6.0 2011-01-20 revision 169049 is OK
4.7.0 2011-04-14 revision 172429 gives an ICE.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
2012-11-14 22:16 ` [Bug middle-end/55331] " dominiq at lps dot ens.fr
@ 2012-11-15 11:52 ` jakub at gcc dot gnu.org
2012-11-15 12:00 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-15 11:52 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-15 11:52:43 UTC ---
Hand-reduced testcase for -O2 -fno-tree-fre
struct A {};
void
foo (A *p, bool x)
{
A a;
char *e = (char *) (&a + 1);
if (x)
__builtin_memmove (p, &a, e - (char *) &a);
}
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
2012-11-14 22:16 ` [Bug middle-end/55331] " dominiq at lps dot ens.fr
2012-11-15 11:52 ` jakub at gcc dot gnu.org
@ 2012-11-15 12:00 ` jakub at gcc dot gnu.org
2012-11-15 12:18 ` jakub at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-15 12:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-11-15 12:00:21 UTC ---
Created attachment 28697
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28697
gcc48-pr55331.patch
Untested fix.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
` (2 preceding siblings ...)
2012-11-15 12:00 ` jakub at gcc dot gnu.org
@ 2012-11-15 12:18 ` jakub at gcc dot gnu.org
2012-11-27 9:20 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-11-15 12:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.6.4
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
` (3 preceding siblings ...)
2012-11-15 12:18 ` jakub at gcc dot gnu.org
@ 2012-11-27 9:20 ` rguenth at gcc dot gnu.org
2012-11-27 9:23 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-11-27 9:20 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> 2012-11-27 09:20:07 UTC ---
Author: rguenth
Date: Tue Nov 27 09:20:02 2012
New Revision: 193839
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193839
Log:
2012-11-27 Richard Biener <rguenther@suse.de>
PR middle-end/55331
* gimple-fold.c (gimplify_and_update_call_from_tree): Replace
stmt with a NOP instead of removing it.
* g++.dg/opt/pr55331.C: New testcase.
Added:
trunk/gcc/testsuite/g++.dg/opt/pr55331.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/gimple-fold.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
` (4 preceding siblings ...)
2012-11-27 9:20 ` rguenth at gcc dot gnu.org
@ 2012-11-27 9:23 ` rguenth at gcc dot gnu.org
2012-11-27 10:14 ` [Bug middle-end/55331] [4.6 " rguenth at gcc dot gnu.org
2013-04-12 16:29 ` jakub at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-11-27 9:23 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> 2012-11-27 09:23:19 UTC ---
Author: rguenth
Date: Tue Nov 27 09:23:15 2012
New Revision: 193840
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=193840
Log:
2012-11-27 Richard Biener <rguenther@suse.de>
PR middle-end/55331
* gimple-fold.c (gimplify_and_update_call_from_tree): Replace
stmt with a NOP instead of removing it.
* g++.dg/opt/pr55331.C: New testcase.
Added:
branches/gcc-4_7-branch/gcc/testsuite/g++.dg/opt/pr55331.C
Modified:
branches/gcc-4_7-branch/gcc/ChangeLog
branches/gcc-4_7-branch/gcc/gimple-fold.c
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
` (5 preceding siblings ...)
2012-11-27 9:23 ` rguenth at gcc dot gnu.org
@ 2012-11-27 10:14 ` rguenth at gcc dot gnu.org
2013-04-12 16:29 ` jakub at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-11-27 10:14 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.7.3, 4.8.0
Summary|[4.6/4.7/4.8 Regression] |[4.6 Regression] ICE:
|ICE: SIGSEGV in |SIGSEGV in
|substitute_and_fold with |substitute_and_fold with
|-O2 -fno-tree-fre |-O2 -fno-tree-fre
Known to fail|4.7.3, 4.8.0 |4.7.2
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> 2012-11-27 10:14:21 UTC ---
Fixed for trunk and 4.7 sofar.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/55331] [4.6 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
` (6 preceding siblings ...)
2012-11-27 10:14 ` [Bug middle-end/55331] [4.6 " rguenth at gcc dot gnu.org
@ 2013-04-12 16:29 ` jakub at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-04-12 16:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55331
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
Target Milestone|4.6.4 |4.7.3
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-04-12 16:29:13 UTC ---
The 4.6 branch has been closed, fixed in GCC 4.7.3.
^ permalink raw reply [flat|nested] 9+ messages in thread
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2012-11-14 21:54 [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre zsojka at seznam dot cz
2012-11-14 22:16 ` [Bug middle-end/55331] " dominiq at lps dot ens.fr
2012-11-15 11:52 ` jakub at gcc dot gnu.org
2012-11-15 12:00 ` jakub at gcc dot gnu.org
2012-11-15 12:18 ` jakub at gcc dot gnu.org
2012-11-27 9:20 ` rguenth at gcc dot gnu.org
2012-11-27 9:23 ` rguenth at gcc dot gnu.org
2012-11-27 10:14 ` [Bug middle-end/55331] [4.6 " rguenth at gcc dot gnu.org
2013-04-12 16:29 ` jakub at gcc dot gnu.org
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