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
184
|
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
// RUN: FileCheck --check-prefix=CIR %s < %t.cir
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
// RUN: FileCheck --check-prefix=LLVM %s < %t-cir.ll
// RUN: %clang_cc1 -std=c++20 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
// RUN: FileCheck --check-prefix=OGCG %s < %t.ll
int test_load(volatile int *ptr) {
return *ptr;
}
// CIR: cir.func dso_local @_Z9test_loadPVi
// CIR: cir.load volatile
// LLVM: define {{.*}} i32 @_Z9test_loadPVi
// LLVM: load volatile i32, ptr %{{.*}}
// OGCG: define {{.*}} i32 @_Z9test_loadPVi
// OGCG: load volatile i32, ptr %{{.*}}
void test_store(volatile int *ptr) {
*ptr = 42;
}
// CIR: cir.func dso_local @_Z10test_storePVi
// CIR: cir.store volatile
// LLVM: define {{.*}} void @_Z10test_storePVi
// LLVM: store volatile i32 42, ptr %{{.*}}
// OGCG: define {{.*}} void @_Z10test_storePVi
// OGCG: store volatile i32 42, ptr %{{.*}}
struct Foo {
int x;
volatile int y;
volatile int z: 4;
};
int test_load_field1(volatile Foo *ptr) {
return ptr->x;
}
// CIR: cir.func dso_local @_Z16test_load_field1PV3Foo
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member
// CIR: %{{.+}} = cir.load volatile{{.*}} %[[MEMBER_ADDR]]
// LLVM: define {{.*}} i32 @_Z16test_load_field1PV3Foo
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.Foo, ptr %{{.*}}, i32 0, i32 0
// LLVM: %{{.*}} = load volatile i32, ptr %[[MEMBER_ADDR]]
// OGCG: define {{.*}} i32 @_Z16test_load_field1PV3Foo
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.Foo, ptr %{{.*}}, i32 0, i32 0
// OGCG: %{{.*}} = load volatile i32, ptr %[[MEMBER_ADDR]]
int test_load_field2(Foo *ptr) {
return ptr->y;
}
// CIR: cir.func dso_local @_Z16test_load_field2P3Foo
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member
// CIR: %{{.+}} = cir.load volatile{{.*}} %[[MEMBER_ADDR]]
// LLVM: define {{.*}} i32 @_Z16test_load_field2P3Foo
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.Foo, ptr %{{.*}}, i32 0, i32 1
// LLVM: %{{.*}} = load volatile i32, ptr %[[MEMBER_ADDR]]
// OGCG: define {{.*}} i32 @_Z16test_load_field2P3Foo
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.Foo, ptr %{{.*}}, i32 0, i32 1
// OGCG: %{{.*}} = load volatile i32, ptr %[[MEMBER_ADDR]]
int test_load_field3(Foo *ptr) {
return ptr->z;
}
// CIR: cir.func dso_local @_Z16test_load_field3P3Foo
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member
// CIR: %{{.*}} = cir.get_bitfield align(4) (#bfi_z, %[[MEMBER_ADDR:.+]] {is_volatile} : !cir.ptr<!u8i>) -> !s32i
// LLVM: define {{.*}} i32 @_Z16test_load_field3P3Foo
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.Foo, ptr %{{.*}}, i32 0, i32 2
// LLVM: %[[TMP1:.*]] = load volatile i8, ptr %[[MEMBER_ADDR]]
// LLVM: %[[TMP2:.*]] = shl i8 %[[TMP1]], 4
// LLVM: %[[TMP3:.*]] = ashr i8 %[[TMP2]], 4
// LLVM: %{{.*}} = sext i8 %[[TMP3]] to i32
// OGCG: define {{.*}} i32 @_Z16test_load_field3P3Foo
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.Foo, ptr %{{.*}}, i32 0, i32 2
// OGCG: %[[TMP1:.*]] = load volatile i8, ptr %[[MEMBER_ADDR]]
// OGCG: %[[TMP2:.*]] = shl i8 %[[TMP1]], 4
// OGCG: %[[TMP3:.*]] = ashr i8 %[[TMP2]], 4
// OGCG: %{{.*}} = sext i8 %[[TMP3]] to i32
void test_store_field1(volatile Foo *ptr) {
ptr->x = 42;
}
// CIR: cir.func dso_local @_Z17test_store_field1PV3Foo
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member
// CIR: cir.store volatile{{.*}} %{{.+}}, %[[MEMBER_ADDR]]
// LLVM: define {{.*}} void @_Z17test_store_field1PV3Foo
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.Foo, ptr %{{.*}}, i32 0, i32 0
// LLVM: store volatile i32 42, ptr %[[MEMBER_ADDR]]
// OGCG: define {{.*}} void @_Z17test_store_field1PV3Foo
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.Foo, ptr %{{.*}}, i32 0, i32 0
// OGCG: store volatile i32 42, ptr %[[MEMBER_ADDR]]
void test_store_field2(Foo *ptr) {
ptr->y = 42;
}
// CIR: cir.func dso_local @_Z17test_store_field2P3Foo
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member
// CIR: cir.store volatile{{.*}} %{{.+}}, %[[MEMBER_ADDR]]
// LLVM: define {{.*}} void @_Z17test_store_field2P3Foo
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.Foo, ptr %{{.*}}, i32 0, i32 1
// LLVM: store volatile i32 42, ptr %[[MEMBER_ADDR]]
// OGCG: define {{.*}} void @_Z17test_store_field2P3Foo
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.Foo, ptr %{{.*}}, i32 0, i32 1
// OGCG: store volatile i32 42, ptr %[[MEMBER_ADDR]]
void test_store_field3(Foo *ptr) {
ptr->z = 4;
}
// CIR: cir.func dso_local @_Z17test_store_field3P3Foo
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member
// CIR: cir.set_bitfield align(4) (#bfi_z, %[[MEMBER_ADDR:.+]] : !cir.ptr<!u8i>, %1 : !s32i) {is_volatile}
// LLVM: define {{.*}} void @_Z17test_store_field3P3Foo
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.Foo, ptr %{{.*}}, i32 0, i32 2
// LLVM: %[[TMP1:.*]] = load volatile i8, ptr %[[MEMBER_ADDR]]
// LLVM: %[[TMP2:.*]] = and i8 %[[TMP1]], -16
// LLVM: %[[TMP3:.*]] = or i8 %[[TMP2]], 4
// LLVM: store volatile i8 %[[TMP3]], ptr %[[MEMBER_ADDR]]
// OGCG: define {{.*}} void @_Z17test_store_field3P3Foo
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.Foo, ptr %{{.*}}, i32 0, i32 2
// OGCG: %[[TMP1:.*]] = load volatile i8, ptr %[[MEMBER_ADDR]]
// OGCG: %[[TMP2:.*]] = and i8 %[[TMP1]], -16
// OGCG: %[[TMP3:.*]] = or i8 %[[TMP2]], 4
// OGCG: store volatile i8 %[[TMP3]], ptr %[[MEMBER_ADDR]]
struct A {
int x;
void set_x(int val) volatile;
int get_x() volatile;
};
void A::set_x(int val) volatile {
x = val;
}
// CIR: cir.func dso_local @_ZNV1A5set_xEi
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member %{{.*}}[0] {name = "x"}
// CIR: cir.store volatile {{.*}} %{{.*}}, %[[MEMBER_ADDR]]
// LLVM: define {{.*}} void @_ZNV1A5set_xEi
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.A, ptr %{{.*}}, i32 0, i32 0
// LLVM: store volatile i32 %{{.*}}, ptr %[[MEMBER_ADDR]]
// OGCG: define {{.*}} void @_ZNV1A5set_xEi
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.A, ptr %{{.*}}, i32 0, i32 0
// OGCG: store volatile i32 %{{.*}}, ptr %[[MEMBER_ADDR]]
int A::get_x() volatile {
return x;
}
// CIR: cir.func dso_local @_ZNV1A5get_xEv
// CIR: %[[MEMBER_ADDR:.*]] = cir.get_member %{{.*}}[0] {name = "x"}
// CIR: cir.load volatile {{.*}} %[[MEMBER_ADDR]]
// LLVM: define {{.*}} i32 @_ZNV1A5get_xEv
// LLVM: %[[MEMBER_ADDR:.*]] = getelementptr %struct.A, ptr %{{.*}}, i32 0, i32 0
// LLVM: %{{.*}} = load volatile i32, ptr %[[MEMBER_ADDR]]
// OGCG: define {{.*}} i32 @_ZNV1A5get_xEv
// OGCG: %[[MEMBER_ADDR:.*]] = getelementptr inbounds nuw %struct.A, ptr %{{.*}}, i32 0, i32 0
// OGCG: %{{.*}} = load volatile i32, ptr %[[MEMBER_ADDR]]
|
