1 // RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s
2 void temp();
3 void temp(int);
4 using FP = void(*)(int);
5 void b() {
6   FP f = temp;
7 }
8 
9 int __attribute__((target("sse4.2"))) foo(int) { return 0; }
10 int __attribute__((target("arch=sandybridge"))) foo(int);
11 int __attribute__((target("arch=ivybridge"))) foo(int) {return 1;}
12 int __attribute__((target("default"))) foo(int) { return 2; }
13 
14 struct S {
15 int __attribute__((target("sse4.2"))) foo(int) { return 0; }
16 int __attribute__((target("arch=sandybridge"))) foo(int);
17 int __attribute__((target("arch=ivybridge"))) foo(int) {return 1;}
18 int __attribute__((target("default"))) foo(int) { return 2; }
19 };
20 
21 using FuncPtr = int (*)(int);
22 using MemFuncPtr = int (S::*)(int);
23 
24 void f(FuncPtr, MemFuncPtr);
25 
26 int bar() {
27   FuncPtr Free = &foo;
28   MemFuncPtr Member = &S::foo;
29   S s;
30   f(foo, &S::foo);
31   return Free(1) + (s.*Member)(2);
32 }
33 
34 
35 // CHECK: @_Z3fooi.ifunc
36 // CHECK: @_ZN1S3fooEi.ifunc
37 
38 // CHECK: define i32 @_Z3barv()
39 // Store to Free of ifunc
40 // CHECK: store i32 (i32)* @_Z3fooi.ifunc
41 // Store to Member of ifunc
42 // CHECK: store { i64, i64 } { i64 ptrtoint (i32 (%struct.S*, i32)* @_ZN1S3fooEi.ifunc to i64), i64 0 }, { i64, i64 }* [[MEMBER:%[a-z]+]]
43 
44 // Call to 'f' with the ifunc
45 // CHECK: call void @_Z1fPFiiEM1SFiiE(i32 (i32)* @_Z3fooi.ifunc
46