https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80043
Bug ID: 80043
Summary: [6/7 Regression] ICE with pointer-to-member-function
and -fpermissive
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 code snippet (compiled with -fpermissive) triggers an ICE
since GCC 6.1.0:
=================================
struct A
{
template<int> void foo()
{
void (A::* fp)();
fp = A::foo<0>;
}
};
void bar()
{
A().foo<0>();
}
=================================
bug.cc: In instantiation of 'void A::foo() [with int <anonymous> = 0]':
bug.cc:12:14: required from here
bug.cc:6:8: warning: assuming pointer to member 'void A::foo() [with int
<anonymous> = 0]' [-fpermissive]
fp = A::foo<0>;
~~~^~~
bug.cc:6:8: note: (a pointer to member can only be formed with '&A::foo<0>')
bug.cc:6:5: internal compiler error: in finish_expr_stmt, at cp/semantics.c:677
fp = A::foo<0>;
^~
0x7affd0 finish_expr_stmt(tree_node*)
../../gcc-6.1.0/gcc/cp/semantics.c:677
0x683322 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-6.1.0/gcc/cp/pt.c:15121
0x68089c tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-6.1.0/gcc/cp/pt.c:15103
0x681662 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool)
../../gcc-6.1.0/gcc/cp/pt.c:15289
0x6c105e instantiate_decl(tree_node*, int, bool)
../../gcc-6.1.0/gcc/cp/pt.c:22013
0x6c7e3b instantiate_pending_templates(int)
../../gcc-6.1.0/gcc/cp/pt.c:22130
0x708d61 c_parse_final_cleanups()
../../gcc-6.1.0/gcc/cp/decl2.c:4599
Please submit a full bug report, [etc.]
