1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
// Basic base class test.
struct f0_s0 { unsigned a; };
struct f0_s1 : public f0_s0 { void *b; };
// CHECK: define void @_Z2f05f0_s1(i32 %a0.coerce0, i8* %a0.coerce1)
void f0(f0_s1 a0) { }
// Check with two eight-bytes in base class.
struct f1_s0 { unsigned a; unsigned b; float c; };
struct f1_s1 : public f1_s0 { float d;};
// CHECK: define void @_Z2f15f1_s1(i64 %a0.coerce0, <2 x float> %a0.coerce1)
void f1(f1_s1 a0) { }
// Check with two eight-bytes in base class and merge.
struct f2_s0 { unsigned a; unsigned b; float c; };
struct f2_s1 : public f2_s0 { char d;};
// CHECK: define void @_Z2f25f2_s1(i64 %a0.coerce0, i64 %a0.coerce1)
void f2(f2_s1 a0) { }
// PR5831
// CHECK: define void @_Z2f34s3_1(i64 %x.coerce)
struct s3_0 {};
struct s3_1 { struct s3_0 a; long b; };
void f3(struct s3_1 x) {}
// CHECK: define i64 @_Z4f4_0M2s4i(i64 %a)
// CHECK: define {{.*}} @_Z4f4_1M2s4FivE(i64 %a.coerce0, i64 %a.coerce1)
struct s4 {};
typedef int s4::* s4_mdp;
typedef int (s4::*s4_mfp)();
s4_mdp f4_0(s4_mdp a) { return a; }
s4_mfp f4_1(s4_mfp a) { return a; }
namespace PR7523 {
struct StringRef {
char *a;
};
void AddKeyword(StringRef, int x);
void foo() {
// CHECK: define void @_ZN6PR75233fooEv()
// CHECK: call void @_ZN6PR752310AddKeywordENS_9StringRefEi(i8* {{.*}}, i32 4)
AddKeyword(StringRef(), 4);
}
}
namespace PR7742 { // Also rdar://8250764
struct s2 {
float a[2];
};
struct c2 : public s2 {};
// CHECK: define <2 x float> @_ZN6PR77423fooEPNS_2c2E(%"struct.PR7742::c2"* %P)
c2 foo(c2 *P) {
return c2();
}
}
namespace PR5179 {
struct B {};
struct B1 : B {
int* pa;
};
struct B2 : B {
B1 b1;
};
// CHECK: define i8* @_ZN6PR51793barENS_2B2E(i32* %b2.coerce)
const void *bar(B2 b2) {
return b2.b1.pa;
}
}
namespace test5 {
struct Xbase { };
struct Empty { };
struct Y;
struct X : public Xbase {
Empty empty;
Y f();
};
struct Y : public X {
Empty empty;
};
X getX();
int takeY(const Y&, int y);
void g() {
// rdar://8340348 - The temporary for the X object needs to have a defined
// address when passed into X::f as 'this'.
takeY(getX().f(), 42);
}
// CHECK: void @_ZN5test51gEv()
// CHECK: alloca %"struct.test5::Y"
// CHECK: alloca %"struct.test5::X"
// CHECK: alloca %"struct.test5::Y"
}
// rdar://8360877
namespace test6 {
struct outer {
int x;
struct epsilon_matcher {} e;
int f;
};
int test(outer x) {
return x.x + x.f;
}
// CHECK: define i32 @_ZN5test64testENS_5outerE(i64 %x.coerce0, i32 %x.coerce1)
}
namespace test7 {
struct StringRef {char* ptr; long len; };
class A { public: ~A(); };
A x(A, A, long, long, StringRef) { return A(); }
// Check that the StringRef is passed byval instead of expanded
// (which would split it between registers and memory).
// rdar://problem/9686430
// CHECK: define void @_ZN5test71xENS_1AES0_llNS_9StringRefE({{.*}} byval align 8)
// And a couple extra related tests:
A y(A, long double, long, long, StringRef) { return A(); }
// CHECK: define void @_ZN5test71yENS_1AEellNS_9StringRefE({{.*}} i8*
struct StringDouble {char * ptr; double d;};
A z(A, A, A, A, A, StringDouble) { return A(); }
A zz(A, A, A, A, StringDouble) { return A(); }
// CHECK: define void @_ZN5test71zENS_1AES0_S0_S0_S0_NS_12StringDoubleE({{.*}} byval align 8)
// CHECK: define void @_ZN5test72zzENS_1AES0_S0_S0_NS_12StringDoubleE({{.*}} i8*
}
namespace test8 {
// CHECK: declare void @_ZN5test83fooENS_1BE(%"class.test8::B"* byval align 8)
class A {
char big[17];
};
class B : public A {};
void foo(B b);
void bar() {
B b;
foo(b);
}
}
// PR4242
namespace test9 {
// Large enough to be passed indirectly.
struct S { void *data[3]; };
struct T { void *data[2]; };
// CHECK: define void @_ZN5test93fooEPNS_1SEPNS_1TE([[S:%.*]]*, [[T:%.*]]*)
void foo(S*, T*) {}
// CHECK: define void @_ZN5test91aEiiiiNS_1TEPv([[S]]* noalias sret {{%.*}}, i32, i32, i32, i32, [[T]]* byval align 8, i8*)
S a(int, int, int, int, T, void*) {
return S();
}
// CHECK: define [[S]]* @_ZN5test91bEPNS_1SEiiiiNS_1TEPv([[S]]* {{%.*}}, i32, i32, i32, i32, [[T:%.*]]* byval align 8, i8*)
S* b(S* sret, int, int, int, int, T, void*) {
return sret;
}
// CHECK: define void @_ZN5test91cEiiiNS_1TEPv([[S]]* noalias sret {{%.*}}, i32, i32, i32, i8* {{%.*}}, i8* {{%.*}}, i8*)
S c(int, int, int, T, void*) {
return S();
}
// CHECK: define [[S]]* @_ZN5test91dEPNS_1SEiiiNS_1TEPv([[S]]* {{%.*}}, i32, i32, i32, i8* {{%.*}}, i8* {{%.*}}, i8*)
S* d(S* sret, int, int, int, T, void*) {
return sret;
}
}
|
