1 // RUN: %clang_cc1 -std=c++11 -triple x86_64-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX
2 // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-macos -emit-llvm %s -o - | FileCheck %s --check-prefix=LINUX
3 // RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-pc -emit-llvm %s -o - | FileCheck %s --check-prefix=WINDOWS
4 void temp();
5 void temp(int);
6 using FP = void(*)(int);
b()7 void b() {
8 FP f = temp;
9 }
10
foo(int)11 int __attribute__((target("sse4.2"))) foo(int) { return 0; }
12 int __attribute__((target("arch=sandybridge"))) foo(int);
foo(int)13 int __attribute__((target("arch=ivybridge"))) foo(int) {return 1;}
foo(int)14 int __attribute__((target("default"))) foo(int) { return 2; }
15
16 struct S {
fooS17 int __attribute__((target("sse4.2"))) foo(int) { return 0; }
18 int __attribute__((target("arch=sandybridge"))) foo(int);
fooS19 int __attribute__((target("arch=ivybridge"))) foo(int) {return 1;}
fooS20 int __attribute__((target("default"))) foo(int) { return 2; }
21 };
22
23 using FuncPtr = int (*)(int);
24 using MemFuncPtr = int (S::*)(int);
25
26 void f(FuncPtr, MemFuncPtr);
27
bar()28 int bar() {
29 FuncPtr Free = &foo;
30 MemFuncPtr Member = &S::foo;
31 S s;
32 f(foo, &S::foo);
33 return Free(1) + (s.*Member)(2);
34 }
35
36 // LINUX: @_Z3fooi.ifunc
37 // LINUX: @_ZN1S3fooEi.ifunc
38
39 // LINUX: define{{.*}} i32 @_Z3barv()
40 // Store to Free of ifunc
41 // LINUX: store ptr @_Z3fooi.ifunc
42 // Store to Member of ifunc
43 // LINUX: store { i64, i64 } { i64 ptrtoint (ptr @_ZN1S3fooEi.ifunc to i64), i64 0 }, ptr [[MEMBER:%[a-z]+]]
44
45 // Call to 'f' with the ifunc
46 // LINUX: call void @_Z1fPFiiEM1SFiiE(ptr noundef @_Z3fooi.ifunc
47
48 // WINDOWS: define dso_local noundef i32 @"?bar@@YAHXZ"()
49 // Store to Free
50 // WINDOWS: store ptr @"?foo@@YAHH@Z.resolver", ptr
51 // Store to Member
52 // WINDOWS: store ptr @"?foo@S@@QEAAHH@Z.resolver", ptr
53
54 // Call to 'f'
55 // WINDOWS: call void @"?f@@YAXP6AHH@ZP8S@@EAAHH@Z@Z"(ptr noundef @"?foo@@YAHH@Z.resolver", ptr @"?foo@S@@QEAAHH@Z.resolver")
56