https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64285
Bug ID: 64285
Summary: [5 Regression] During LTO: ICE segfault in
ipa_polymorphic_call_context::get_dynamic_type
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: lto
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
CC: hubicka at gcc dot gnu.org
I tried compiling the program again which gave the ICE of PR64043, motivated by
the patch https://gcc.gnu.org/ml/gcc-patches/2014-12/msg01076.html which looks
vaguely related.
In any case, it now (r218661) fails with:
gcc-trunk/include/c++/5.0.0/bits/unique_ptr.h:70:0: internal compiler error:
Segmentation fault
operator()(_Tp* __ptr) const
^
0xa2576f crash_signal
../../gcc/toplev.c:358
0x878d2f tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:2778
0x878d2f ipa_polymorphic_call_context::get_dynamic_type(tree_node*, tree_node*,
tree_node*, gimple_statement_base*)
../../gcc/ipa-polymorphic-call.c:1594
0xb9f23e eliminate_dom_walker::before_dom_children(basic_block_def*)
../../gcc/tree-ssa-pre.c:4334
0xfde647 dom_walker::walk(basic_block_def*)
../../gcc/domwalk.c:188
0xba0da0 eliminate
../../gcc/tree-ssa-pre.c:4491
0xba0ff5 execute
../../gcc/tree-ssa-pre.c:4910
Testcase reduction under way
