1 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s
2 // CHECK: _Z1fPA10_1X
3 // CHECK: _Z1fPFvE
4
f(int x)5 int __attribute__((overloadable)) f(int x) { return x; }
f(float x)6 float __attribute__((overloadable)) f(float x) { return x; }
f(double x)7 double __attribute__((overloadable)) f(double x) { return x; }
f(double _Complex x)8 double _Complex __attribute__((overloadable)) f(double _Complex x) { return x; }
9 typedef short v4hi __attribute__ ((__vector_size__ (8)));
f(v4hi x)10 v4hi __attribute__((overloadable)) f(v4hi x) { return x; }
11
12 struct X { };
f(struct X (* ptr)[10])13 void __attribute__((overloadable)) f(struct X (*ptr)[10]) { }
14
f(int x,int y,...)15 void __attribute__((overloadable)) f(int x, int y, ...) { }
16
f(void (* x)())17 void __attribute__((overloadable)) f(void (*x)()) {}
18
main()19 int main() {
20 int iv = 17;
21 float fv = 3.0f;
22 double dv = 4.0;
23 double _Complex cdv;
24 v4hi vv;
25
26 iv = f(iv);
27 fv = f(fv);
28 dv = f(dv);
29 cdv = f(cdv);
30 vv = f(vv);
31 }
32
33 // Ensuring that we pick the correct function for taking the address of an
34 // overload when conversions are involved.
35
36 void addrof_many(int *a) __attribute__((overloadable, enable_if(0, "")));
37 void addrof_many(void *a) __attribute__((overloadable));
38 void addrof_many(char *a) __attribute__((overloadable));
39
40 void addrof_single(int *a) __attribute__((overloadable, enable_if(0, "")));
41 void addrof_single(char *a) __attribute__((overloadable, enable_if(0, "")));
42 void addrof_single(char *a) __attribute__((overloadable));
43
44 // CHECK-LABEL: define {{(dso_local )?}}void @foo
foo()45 void foo() {
46 // CHECK: store void (i8*)* @_Z11addrof_manyPc
47 void (*p1)(char *) = &addrof_many;
48 // CHECK: store void (i8*)* @_Z11addrof_manyPv
49 void (*p2)(void *) = &addrof_many;
50 // CHECK: void (i8*)* @_Z11addrof_manyPc
51 void *vp1 = (void (*)(char *)) & addrof_many;
52 // CHECK: void (i8*)* @_Z11addrof_manyPv
53 void *vp2 = (void (*)(void *)) & addrof_many;
54
55 // CHECK: store void (i8*)* @_Z13addrof_singlePc
56 void (*p3)(char *) = &addrof_single;
57 // CHECK: @_Z13addrof_singlePc
58 void (*p4)(int *) = &addrof_single;
59 // CHECK: @_Z13addrof_singlePc
60 void *vp3 = &addrof_single;
61 }
62
63
64 void ovl_bar(char *) __attribute__((overloadable));
65 void ovl_bar(int) __attribute__((overloadable));
66
67 // CHECK-LABEL: define {{(dso_local )?}}void @bar
bar()68 void bar() {
69 char charbuf[1];
70 unsigned char ucharbuf[1];
71
72 // CHECK: call void @_Z7ovl_barPc
73 ovl_bar(charbuf);
74 // CHECK: call void @_Z7ovl_barPc
75 ovl_bar(ucharbuf);
76 }
77
78 void ovl_baz(int *, int) __attribute__((overloadable));
79 void ovl_baz(unsigned int *, unsigned int) __attribute__((overloadable));
80 void ovl_baz2(int, int *) __attribute__((overloadable));
81 void ovl_baz2(unsigned int, unsigned int *) __attribute__((overloadable));
82 // CHECK-LABEL: define {{(dso_local )?}}void @baz
baz()83 void baz() {
84 unsigned int j;
85 // Initial rules for incompatible pointer conversions made this overload
86 // ambiguous.
87 // CHECK: call void @_Z7ovl_bazPjj
88 ovl_baz(&j, 0);
89 // CHECK: call void @_Z7ovl_bazPjj
90 ovl_baz(&j, 0u);
91
92 // CHECK: call void @_Z8ovl_baz2jPj
93 ovl_baz2(0, &j);
94 // CHECK: call void @_Z8ovl_baz2jPj
95 ovl_baz2(0u, &j);
96 }
97