https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79368
Bug ID: 79368
Summary: [7 Regression] ICE with pointer to unnamed struct
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: reichelt at gcc dot gnu.org
Target Milestone: ---
The following valid code snippet triggers an ICE on trunk:
===========================================
typedef struct{}* X;
template<typename T> void foo(X, T) {}
void bar()
{
foo(0, 0);
}
===========================================
bug.cc: In instantiation of 'void foo(X, T) [with T = int]':
bug.cc:3:27: required from here
bug.cc:3:27: internal compiler error: in write_unnamed_type_name, at
cp/mangle.c:1623
template<typename T> void foo(X, T) {}
^~~
0x825126 write_unnamed_type_name
../../gcc/gcc/cp/mangle.c:1623
0x825126 write_unqualified_name
../../gcc/gcc/cp/mangle.c:1382
0x825bbf write_name
../../gcc/gcc/cp/mangle.c:939
0x826f7f write_class_enum_type
../../gcc/gcc/cp/mangle.c:2769
0x826f7f write_type
../../gcc/gcc/cp/mangle.c:2187
0x826186 write_type
../../gcc/gcc/cp/mangle.c:2267
0x828a24 write_method_parms
../../gcc/gcc/cp/mangle.c:2756
0x828c96 write_bare_function_type
../../gcc/gcc/cp/mangle.c:2698
0x828e12 write_encoding
../../gcc/gcc/cp/mangle.c:848
0x8303ac mangle_decl_string
../../gcc/gcc/cp/mangle.c:3743
0x830762 get_mangled_id
../../gcc/gcc/cp/mangle.c:3765
0x830762 mangle_decl(tree_node*)
../../gcc/gcc/cp/mangle.c:3835
0x103021e decl_assembler_name(tree_node*)
../../gcc/gcc/tree.c:671
0x1055fbd assign_assembler_name_if_neeeded(tree_node*)
../../gcc/gcc/tree.c:5920
0x997d8b cgraph_node::analyze()
../../gcc/gcc/cgraphunit.c:619
0x99afb9 analyze_functions
../../gcc/gcc/cgraphunit.c:1087
0x99c012 symbol_table::finalize_compilation_unit()
../../gcc/gcc/cgraphunit.c:2562
Please submit a full bug report, [etc.]
