1// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm < %s | FileCheck %s
2
3void __attribute__((fastcall)) f1(void);
4void __attribute__((stdcall)) f2(void);
5void __attribute__((thiscall)) f3(void);
6void __attribute__((fastcall)) f4(void) {
7// CHECK-LABEL: define x86_fastcallcc void @f4()
8  f1();
9// CHECK: call x86_fastcallcc void @f1()
10}
11void __attribute__((stdcall)) f5(void) {
12// CHECK-LABEL: define x86_stdcallcc void @f5()
13  f2();
14// CHECK: call x86_stdcallcc void @f2()
15}
16void __attribute__((thiscall)) f6(void) {
17// CHECK-LABEL: define x86_thiscallcc void @f6()
18  f3();
19// CHECK: call x86_thiscallcc void @f3()
20}
21
22// PR5280
23void (__attribute__((fastcall)) *pf1)(void) = f1;
24void (__attribute__((stdcall)) *pf2)(void) = f2;
25void (__attribute__((thiscall)) *pf3)(void) = f3;
26void (__attribute__((fastcall)) *pf4)(void) = f4;
27void (__attribute__((stdcall)) *pf5)(void) = f5;
28void (__attribute__((thiscall)) *pf6)(void) = f6;
29
30int main(void) {
31    f4(); f5(); f6();
32    // CHECK: call x86_fastcallcc void @f4()
33    // CHECK: call x86_stdcallcc void @f5()
34    // CHECK: call x86_thiscallcc void @f6()
35    pf1(); pf2(); pf3(); pf4(); pf5(); pf6();
36    // CHECK: call x86_fastcallcc void %{{.*}}()
37    // CHECK: call x86_stdcallcc void %{{.*}}()
38    // CHECK: call x86_thiscallcc void %{{.*}}()
39    // CHECK: call x86_fastcallcc void %{{.*}}()
40    // CHECK: call x86_stdcallcc void %{{.*}}()
41    // CHECK: call x86_thiscallcc void %{{.*}}()
42    return 0;
43}
44
45// PR7117
46void __attribute((stdcall)) f7(foo) int foo; {}
47void f8(void) {
48  f7(0);
49  // CHECK: call x86_stdcallcc void @f7(i32 0)
50}
51
52void __attribute__((fastcall)) foo1(int y);
53void bar1(int y) {
54  // CHECK-LABEL: define void @bar1
55  // CHECK: call x86_fastcallcc void @foo1(i32 inreg %
56  foo1(y);
57}
58
59struct S1 {
60  int x;
61};
62void __attribute__((fastcall)) foo2(struct S1 y);
63void bar2(struct S1 y) {
64  // CHECK-LABEL: define void @bar2
65  // CHECK: call x86_fastcallcc void @foo2(i32 inreg undef, i32 %
66  foo2(y);
67}
68
69void __attribute__((fastcall)) foo3(int *y);
70void bar3(int *y) {
71  // CHECK-LABEL: define void @bar3
72  // CHECK: call x86_fastcallcc void @foo3(i32* inreg %
73  foo3(y);
74}
75
76enum Enum {Eval};
77void __attribute__((fastcall)) foo4(enum Enum y);
78void bar4(enum Enum y) {
79  // CHECK-LABEL: define void @bar4
80  // CHECK: call x86_fastcallcc void @foo4(i32 inreg %
81  foo4(y);
82}
83
84struct S2 {
85  int x1;
86  double x2;
87  double x3;
88};
89void __attribute__((fastcall)) foo5(struct S2 y);
90void bar5(struct S2 y) {
91  // CHECK-LABEL: define void @bar5
92  // CHECK: call x86_fastcallcc void @foo5(%struct.S2* byval align 4 %
93  foo5(y);
94}
95
96void __attribute__((fastcall)) foo6(long long y);
97void bar6(long long y) {
98  // CHECK-LABEL: define void @bar6
99  // CHECK: call x86_fastcallcc void @foo6(i64 %
100  foo6(y);
101}
102
103void __attribute__((fastcall)) foo7(int a, struct S1 b, int c);
104void bar7(int a, struct S1 b, int c) {
105  // CHECK-LABEL: define void @bar7
106  // CHECK: call x86_fastcallcc void @foo7(i32 inreg %{{.*}}, i32 %{{.*}}, i32 %{{.*}}
107  foo7(a, b, c);
108}
109
110void __attribute__((fastcall)) foo8(struct S1 a, int b);
111void bar8(struct S1 a, int b) {
112  // CHECK-LABEL: define void @bar8
113  // CHECK: call x86_fastcallcc void @foo8(i32 inreg undef, i32 %{{.*}}, i32 inreg %
114  foo8(a, b);
115}
116
117void __attribute__((fastcall)) foo9(struct S2 a, int b);
118void bar9(struct S2 a, int b) {
119  // CHECK-LABEL: define void @bar9
120  // CHECK: call x86_fastcallcc void @foo9(%struct.S2* byval align 4 %{{.*}}, i32 %
121  foo9(a, b);
122}
123
124void __attribute__((fastcall)) foo10(float y, int x);
125void bar10(float y, int x) {
126  // CHECK-LABEL: define void @bar10
127  // CHECK: call x86_fastcallcc void @foo10(float %{{.*}}, i32 inreg %
128  foo10(y, x);
129}
130
131void __attribute__((fastcall)) foo11(double y, int x);
132void bar11(double y, int x) {
133  // CHECK-LABEL: define void @bar11
134  // CHECK: call x86_fastcallcc void @foo11(double %{{.*}}, i32 inreg %
135  foo11(y, x);
136}
137
138struct S3 {
139  float x;
140};
141void __attribute__((fastcall)) foo12(struct S3 y, int x);
142void bar12(struct S3 y, int x) {
143  // CHECK-LABEL: define void @bar12
144  // CHECK: call x86_fastcallcc void @foo12(float %{{.*}}, i32 inreg %
145  foo12(y, x);
146}
147