https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84520
Bug ID: 84520
Summary: [6/7/8 Regression] ICE with lambda and static member
function
Product: gcc
Version: 8.0
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 testcase triggers an ICE since GCC 5.1.0.
It was compiled without problems in GCC 4.9.x.
================================================
struct A
{
static void foo(int);
void (*f)(int) = [](auto i) { foo(i); };
};
================================================
bug.cc: In instantiation of 'A::<lambda(auto:1)> [with auto:1 = int]':
bug.cc:4:29: required by substitution of 'template<class auto:1>
A::<lambda(auto:1)>::operator decltype
(((A::<lambda(auto:1)>)0u).operator()(i)) (*)(auto:1)() const [with auto:1 =
int]'
bug.cc:4:41: required from here
bug.cc:4:36: internal compiler error: in lambda_expr_this_capture, at
cp/lambda.c:697
void (*f)(int) = [](auto i) { foo(i); };
^
0x83f04c lambda_expr_this_capture(tree_node*, bool)
../../gcc-5.1.0/gcc/cp/lambda.c:695
0x83f387 maybe_resolve_dummy(tree_node*, bool)
../../gcc-5.1.0/gcc/cp/lambda.c:789
0x6485a1 build_new_method_call_1
../../gcc-5.1.0/gcc/cp/call.c:8027
0x6485a1 build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, tree_node*, int, tree_node**, int)
../../gcc-5.1.0/gcc/cp/call.c:8275
0x7cd9ef finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
../../gcc-5.1.0/gcc/cp/semantics.c:2367
0x6b536f tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc-5.1.0/gcc/cp/pt.c:15211
0x6a2a85 tsubst_expr
../../gcc-5.1.0/gcc/cp/pt.c:14398
0x6a39b2 tsubst_expr
../../gcc-5.1.0/gcc/cp/pt.c:13809
0x6a25fb tsubst_expr
../../gcc-5.1.0/gcc/cp/pt.c:13981
0x6a25fb tsubst_expr
../../gcc-5.1.0/gcc/cp/pt.c:13981
0x6a0774 instantiate_decl(tree_node*, int, bool)
../../gcc-5.1.0/gcc/cp/pt.c:20407
0x7219f8 mark_used(tree_node*, int)
../../gcc-5.1.0/gcc/cp/decl2.c:5029
0x63d88a build_over_call
../../gcc-5.1.0/gcc/cp/call.c:7489
0x64889e build_new_method_call_1
../../gcc-5.1.0/gcc/cp/call.c:8205
0x64889e build_new_method_call(tree_node*, tree_node*, vec<tree_node*, va_gc,
vl_embed>**, tree_node*, int, tree_node**, int)
../../gcc-5.1.0/gcc/cp/call.c:8275
0x6b5fe2 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool,
bool)
../../gcc-5.1.0/gcc/cp/pt.c:15205
0x6aac9e tsubst(tree_node*, tree_node*, int, tree_node*)
../../gcc-5.1.0/gcc/cp/pt.c:12530
0x6b0a5f tsubst_function_type
../../gcc-5.1.0/gcc/cp/pt.c:11624
0x6ab365 tsubst(tree_node*, tree_node*, int, tree_node*)
../../gcc-5.1.0/gcc/cp/pt.c:12357
0x6aac06 tsubst(tree_node*, tree_node*, int, tree_node*)
../../gcc-5.1.0/gcc/cp/pt.c:11899
Please submit a full bug report, [etc.]
