1 // REQUIRES: x86-registered-target,x86-64-registered-target 2 // RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++11 -S %s -o %t-64.s 3 // RUN: FileCheck -check-prefix CHECK-LP64 --input-file=%t-64.s %s 4 // RUN: %clang_cc1 -triple i386-apple-darwin -std=c++11 -S %s -o %t-32.s 5 // RUN: FileCheck -check-prefix CHECK-LP32 --input-file=%t-32.s %s 6 // 13.3.3.2 Ranking implicit conversion sequences 7 8 extern "C" int printf(...); 9 10 struct A { 11 int Ai; 12 bool foo(int* arg) const; 13 }; 14 15 bool A::foo(int* arg) const { 16 printf("A::foo(%d)\n", *arg); 17 return true; 18 } 19 20 struct B : public A { 21 void bf() { printf("B::bf called\n"); } 22 }; 23 24 struct C : public B { }; 25 26 // conversion of B::* to C::* is better than conversion of A::* to C::* 27 typedef void (A::*pmfa)(); 28 typedef void (B::*pmfb)(); 29 typedef void (C::*pmfc)(); 30 31 struct X { 32 operator pmfa(); 33 operator pmfb() { 34 return &B::bf; 35 } 36 }; 37 38 39 void g(pmfc pm) { 40 C c; 41 (c.*pm)(); 42 } 43 44 void test2(X x) 45 { 46 g(x); 47 } 48 49 struct B1 { 50 bool (A::*pmf)(int*) const; 51 52 B1(int i) : pmf(&A::foo), im(i) { 53 ((A*)this->*pmf)(&im); 54 } 55 56 int im; 57 }; 58 59 int main() 60 { 61 X x; 62 test2(x); 63 B1 b = B1(1); 64 B1 c = B1(2); 65 } 66 67 // CHECK-LP64: callq __ZN1XcvM1BFvvEEv 68 // CHECK-LP64: callq __Z1gM1CFvvE 69 70 // CHECK-LP32: calll L__ZN1XcvM1BFvvEEv 71 // CHECK-LP32: calll __Z1gM1CFvvE 72