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[Bug c++/58701] New: [4.9 Regression] [c++11] ICE initializing member of static union
- From: "reichelt at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 12 Oct 2013 21:01:01 +0000
- Subject: [Bug c++/58701] New: [4.9 Regression] [c++11] ICE initializing member of static union
- Auto-submitted: auto-generated
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58701
Bug ID: 58701
Summary: [4.9 Regression] [c++11] ICE initializing member of
static union
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
The following valid code snippet (compiled with "-std=c++11") triggers an ICE
on trunk (since at least 4.9.0 20130920):
===============
static union
{
union
{
int i = 0;
};
};
===============
bug.cc: In constructor 'constexpr<anonymous union>::<constructor>()':
bug.cc:2:1: internal compiler error: tree check: accessed operand 2 of
indirect_ref with 1 operands in build_anon_member_initialization, at
cp/semantics.c:7404
{
^
0xd201a7 tree_operand_check_failed(int, tree_node const*, char const*, int,
char const*)
../../gcc/gcc/tree.c:9499
0x6d2677 tree_operand_check
../../gcc/gcc/tree.h:3109
0x6d2677 build_anon_member_initialization
../../gcc/gcc/cp/semantics.c:7404
0x6d2677 build_data_member_initialization
../../gcc/gcc/cp/semantics.c:7533
0x6d338d build_constexpr_constructor_member_initializers
../../gcc/gcc/cp/semantics.c:7652
0x6d338d massage_constexpr_body
../../gcc/gcc/cp/semantics.c:7752
0x6da9a3 register_constexpr_fundef(tree_node*, tree_node*)
../../gcc/gcc/cp/semantics.c:7856
0x56ea38 maybe_save_function_definition
../../gcc/gcc/cp/decl.c:13823
0x56ea38 finish_function(int)
../../gcc/gcc/cp/decl.c:13944
0x6acc19 synthesize_method(tree_node*)
../../gcc/gcc/cp/method.c:809
0x61e379 mark_used(tree_node*, int)
../../gcc/gcc/cp/decl2.c:4778
0x54d0b6 build_over_call
../../gcc/gcc/cp/call.c:7116
0x548eae build_new_method_call_1
../../gcc/gcc/cp/call.c:7813
0x548eae build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, tree_node*, int, tree_node**, int)
../../gcc/gcc/cp/call.c:7883
0x549e22 build_special_member_call(tree_node*, tree_node*, vec<tree_node*,
va_gc, vl_embed>**, tree_node*, int, int)
../../gcc/gcc/cp/call.c:7440
0x69eba7 expand_default_init
../../gcc/gcc/cp/init.c:1668
0x69eba7 expand_aggr_init_1
../../gcc/gcc/cp/init.c:1769
0x6a1779 build_aggr_init(tree_node*, tree_node*, int, int)
../../gcc/gcc/cp/init.c:1520
0x55e005 build_aggr_init_full_exprs
../../gcc/gcc/cp/decl.c:5552
0x55e005 check_initializer
../../gcc/gcc/cp/decl.c:5687
Please submit a full bug report, [etc.]