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From: "zsojka at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/55331] New: [4.6/4.7/4.8 Regression] ICE: SIGSEGV in substitute_and_fold with -O2 -fno-tree-fre
Date: Wed, 14 Nov 2012 21:54:00 -0000 [thread overview]
Message-ID: <bug-55331-4@http.gcc.gnu.org/bugzilla/> (raw)
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
next reply other threads:[~2012-11-14 21:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-14 21:54 zsojka at seznam dot cz [this message]
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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