1 // RUN: %clang_cc1 -no-opaque-pointers %s -triple i386-unknown-unknown -Wno-strict-prototypes -emit-llvm -o - -verify | FileCheck %s
2
3 int g();
4
foo(int i)5 int foo(int i) {
6 return g(i);
7 }
8
g(int i)9 int g(int i) {
10 return g(i);
11 }
12
13 // rdar://6110827
14 typedef void T(void);
test3(T f)15 void test3(T f) {
16 f();
17 }
18
f0(void)19 void f0(void) {}
20 // CHECK-LABEL: define{{.*}} void @f0()
21
22 void f1();
f2(void)23 void f2(void) {
24 // CHECK: call void @f1()
25 f1(1, 2, 3);
26 }
27 // CHECK-LABEL: define{{.*}} void @f1()
f1()28 void f1() {}
29
30 // CHECK: define {{.*}} @f3{{\(\)|\(.*sret.*\)}}
f3(void)31 struct foo { int X, Y, Z; } f3(void) {
32 while (1) {}
33 }
34
35 // PR4423 - This shouldn't crash in codegen
f4()36 void f4() {}
f5(void)37 void f5(void) { f4(42); } //expected-warning {{too many arguments}}
38
39 // Qualifiers on parameter types shouldn't make a difference.
f6(const float f,const float g)40 static void f6(const float f, const float g) {
41 }
f7(float f,float g)42 void f7(float f, float g) {
43 f6(f, g);
44 // CHECK: define{{.*}} void @f7(float{{.*}}, float{{.*}})
45 // CHECK: call void @f6(float{{.*}}, float{{.*}})
46 }
47
48 // PR6911 - incomplete function types
49 struct Incomplete;
50 void f8_callback(struct Incomplete);
51 void f8_user(void (*callback)(struct Incomplete));
f8_test(void)52 void f8_test(void) {
53 f8_user(&f8_callback);
54 // CHECK-LABEL: define{{.*}} void @f8_test()
55 // CHECK: call void @f8_user({{.*}}* noundef bitcast (void ()* @f8_callback to {{.*}}*))
56 // CHECK: declare void @f8_user({{.*}}* noundef)
57 // CHECK: declare void @f8_callback()
58 }
59
60 // PR10204: don't crash
test9_helper(void)61 static void test9_helper(void) {}
test9(void)62 void test9(void) {
63 (void) test9_helper;
64 }
65