http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59355
Bug ID: 59355
Summary: [4.9 Regression] ICE: SIGSEGV in
hash_table::find_slot_with_hash() with
-fno-devirtualize
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Created attachment 31340
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31340&action=edit
reduced testcase
Compiler output:
$ gcc -O2 -fno-devirtualize testcase.C
testcase.C:10:1: internal compiler error: Segmentation fault
}
^
0xc985ef crash_signal
/mnt/svn/gcc-trunk/gcc/toplev.c:336
0xaad8d1 hash_table<odr_hasher, xcallocator>::find_slot_with_hash(tree_node
const*, unsigned int, insert_option)
/mnt/svn/gcc-trunk/gcc/hash-table.h:774
0xaaaa4c get_odr_type(tree_node*, bool)
/mnt/svn/gcc-trunk/gcc/ipa-devirt.c:413
0xaac2e5 possible_polymorphic_call_targets(tree_node*, long,
ipa_polymorphic_call_context, bool*, void**)
/mnt/svn/gcc-trunk/gcc/ipa-devirt.c:1191
0xaacf8e possible_polymorphic_call_targets
/mnt/svn/gcc-trunk/gcc/ipa-utils.h:114
0xaacf8e ipa_devirt
/mnt/svn/gcc-trunk/gcc/ipa-devirt.c:1455
0xaacf8e execute
/mnt/svn/gcc-trunk/gcc/ipa-devirt.c:1637
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$ gcc -v
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-latest/bin/gcc
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-205547-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /mnt/svn/gcc-trunk//configure --enable-checking=yes,rtl,df
--enable-languages=c,c++,lto,fortran
--prefix=/mnt/svn/gcc-trunk/binary-205547-lto-fortran-checking-yes-rtl-df/
--without-cloog --without-ppl
Thread model: posix
gcc version 4.9.0 20131130 (experimental) (GCC)
Tested revisions:
r205547 - crash
4.8 r204890 - OK
