1 // RUN: %clang_cc1 -no-opaque-pointers %s -triple=x86_64-apple-darwin10 -emit-llvm -O3 -o - | FileCheck %s
2 /// Check that we pass the member pointers indirectly for MinGW64
3 // RUN: %clang_cc1 -no-opaque-pointers %s -triple=x86_64-windows-gnu -emit-llvm -o - | FileCheck %s -check-prefix MINGW64
4 /// We should be able to optimize calls via the indirectly passed member pointers
5 // RUN: %clang_cc1 -no-opaque-pointers %s -triple=x86_64-windows-gnu -emit-llvm -O3 -o - | FileCheck %s
6 struct A {
7   virtual int vf1() { return 1; }
8   virtual int vf2() { return 2; }
9 };
10 
11 int f(A* a, int (A::*fp)()) {
12   return (a->*fp)();
13 }
14 
15 // CHECK-LABEL: define{{.*}} i32 @_Z2g1v()
16 // CHECK-NOT: }
17 // CHECK: ret i32 1
18 // MINGW64-LABEL: define dso_local noundef i32 @_Z2g1v()
19 // MINGW64: call noundef i32 @_Z1fP1AMS_FivE(%struct.A* noundef %{{.*}}, { i64, i64 }* noundef %{{.*}})
20 int g1() {
21   A a;
22   return f(&a, &A::vf1);
23 }
24 
25 // CHECK-LABEL: define{{.*}} i32 @_Z2g2v()
26 // CHECK-NOT: }
27 // CHECK: ret i32 2
28 // MINGW64-LABEL: define dso_local noundef i32 @_Z2g2v()
29 // MINGW64: call noundef i32 @_Z1fP1AMS_FivE(%struct.A* noundef %{{.*}}, { i64, i64 }* noundef %{{.*}})
30 int g2() {
31   A a;
32   return f(&a, &A::vf2);
33 }
34