https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61921
Bug ID: 61921
Summary: [4.10 Regression] ICE: SIGSEGV in
varpool_node::get_constructor(), at varpool.c:275 with
-O2 -fipa-pta
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Created attachment 33189
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33189&action=edit
reduced testcase
Compiler output (under valgrind):
$ gcc -O2 -fipa-pta testcase.C
==11993== Invalid read of size 8
==11993== at 0xFA105D: varpool_node::get_constructor() (varpool.c:275)
==11993== by 0xE9FFAA: create_variable_info_for_1(tree_node*, char const*)
(tree-ssa-structalias.c:5674)
==11993== by 0xEA2D92: intra_create_variable_infos(function*) [clone
.isra.123] (tree-ssa-structalias.c:5888)
==11993== by 0xEABF2D: (anonymous
namespace)::pass_ipa_pta::execute(function*) (tree-ssa-structalias.c:7190)
==11993== by 0xC190AC: execute_one_pass(opt_pass*) (passes.c:2149)
==11993== by 0xC19CBA: execute_ipa_pass_list(opt_pass*) (passes.c:2539)
==11993== by 0x947386: compile() (cgraphunit.c:2219)
==11993== by 0x9480A4: finalize_compilation_unit() (cgraphunit.c:2338)
==11993== by 0x72441C: cp_write_global_declarations() (decl2.c:4684)
==11993== by 0xD1314C: compile_file() (toplev.c:562)
==11993== by 0xD15484: toplev_main(int, char**) (toplev.c:1938)
==11993== by 0x5A46BF4: (below main) (in /lib64/libc-2.17.so)
==11993== Address 0x8 is not stack'd, malloc'd or (recently) free'd
==11993==
testcase.C:21:1: 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:
r213075 - ICE
r213035 - ICE
r212969 - OK
4_9 r212703 - OK
