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
|
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 5
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s --check-prefix=X86_64
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s --check-prefix=I386
struct a {
char x;
short count;
int array[] __attribute__((counted_by(count)));
};
// X86_64-LABEL: define dso_local ptr @test1(
// X86_64-SAME: i32 noundef [[SIZE:%.*]]) #[[ATTR0:[0-9]+]] {
// X86_64-NEXT: [[ENTRY:.*:]]
// X86_64-NEXT: [[SIZE_ADDR:%.*]] = alloca i32, align 4
// X86_64-NEXT: [[P:%.*]] = alloca ptr, align 8
// X86_64-NEXT: store i32 [[SIZE]], ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[TMP0:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[CONV:%.*]] = sext i32 [[TMP0]] to i64
// X86_64-NEXT: [[MUL:%.*]] = mul i64 4, [[CONV]]
// X86_64-NEXT: [[ADD:%.*]] = add i64 4, [[MUL]]
// X86_64-NEXT: [[CALL:%.*]] = call ptr @malloc(i64 noundef [[ADD]]) #[[ATTR2:[0-9]+]]
// X86_64-NEXT: store ptr [[CALL]], ptr [[P]], align 8
// X86_64-NEXT: [[TMP1:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[CONV1:%.*]] = trunc i32 [[TMP1]] to i16
// X86_64-NEXT: [[TMP2:%.*]] = load ptr, ptr [[P]], align 8
// X86_64-NEXT: [[DOT_COUNTED_BY_GEP:%.*]] = getelementptr inbounds [[STRUCT_A:%.*]], ptr [[TMP2]], i32 0, i32 1
// X86_64-NEXT: store i16 [[CONV1]], ptr [[DOT_COUNTED_BY_GEP]], align 2
// X86_64-NEXT: [[TMP3:%.*]] = load ptr, ptr [[P]], align 8
// X86_64-NEXT: ret ptr [[TMP3]]
//
// I386-LABEL: define dso_local ptr @test1(
// I386-SAME: i32 noundef [[SIZE:%.*]]) #[[ATTR0:[0-9]+]] {
// I386-NEXT: [[ENTRY:.*:]]
// I386-NEXT: [[SIZE_ADDR:%.*]] = alloca i32, align 4
// I386-NEXT: [[P:%.*]] = alloca ptr, align 4
// I386-NEXT: store i32 [[SIZE]], ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[TMP0:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[MUL:%.*]] = mul i32 4, [[TMP0]]
// I386-NEXT: [[ADD:%.*]] = add i32 4, [[MUL]]
// I386-NEXT: [[CALL:%.*]] = call ptr @malloc(i32 noundef [[ADD]]) #[[ATTR2:[0-9]+]]
// I386-NEXT: store ptr [[CALL]], ptr [[P]], align 4
// I386-NEXT: [[TMP1:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[CONV:%.*]] = trunc i32 [[TMP1]] to i16
// I386-NEXT: [[TMP2:%.*]] = load ptr, ptr [[P]], align 4
// I386-NEXT: [[DOT_COUNTED_BY_GEP:%.*]] = getelementptr inbounds [[STRUCT_A:%.*]], ptr [[TMP2]], i32 0, i32 1
// I386-NEXT: store i16 [[CONV]], ptr [[DOT_COUNTED_BY_GEP]], align 2
// I386-NEXT: [[TMP3:%.*]] = load ptr, ptr [[P]], align 4
// I386-NEXT: ret ptr [[TMP3]]
//
struct a *test1(int size) {
struct a *p = __builtin_malloc(sizeof(struct a) + sizeof(int) * size);
*__builtin_counted_by_ref(p->array) = size;
return p;
}
struct b {
int _filler;
struct {
int __filler;
struct {
int ___filler;
struct {
char count;
};
};
};
struct {
int filler_;
struct {
int filler__;
struct {
long array[] __attribute__((counted_by(count)));
};
};
};
};
// X86_64-LABEL: define dso_local ptr @test2(
// X86_64-SAME: i32 noundef [[SIZE:%.*]]) #[[ATTR0]] {
// X86_64-NEXT: [[ENTRY:.*:]]
// X86_64-NEXT: [[SIZE_ADDR:%.*]] = alloca i32, align 4
// X86_64-NEXT: [[P:%.*]] = alloca ptr, align 8
// X86_64-NEXT: store i32 [[SIZE]], ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[TMP0:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[CONV:%.*]] = sext i32 [[TMP0]] to i64
// X86_64-NEXT: [[MUL:%.*]] = mul i64 4, [[CONV]]
// X86_64-NEXT: [[ADD:%.*]] = add i64 4, [[MUL]]
// X86_64-NEXT: [[CALL:%.*]] = call ptr @malloc(i64 noundef [[ADD]]) #[[ATTR2]]
// X86_64-NEXT: store ptr [[CALL]], ptr [[P]], align 8
// X86_64-NEXT: [[TMP1:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[CONV1:%.*]] = trunc i32 [[TMP1]] to i8
// X86_64-NEXT: [[TMP2:%.*]] = load ptr, ptr [[P]], align 8
// X86_64-NEXT: [[DOT_COUNTED_BY_GEP:%.*]] = getelementptr inbounds [[STRUCT_B:%.*]], ptr [[TMP2]], i32 0, i32 1, i32 1, i32 1, i32 0
// X86_64-NEXT: store i8 [[CONV1]], ptr [[DOT_COUNTED_BY_GEP]], align 1
// X86_64-NEXT: [[TMP3:%.*]] = load ptr, ptr [[P]], align 8
// X86_64-NEXT: ret ptr [[TMP3]]
//
// I386-LABEL: define dso_local ptr @test2(
// I386-SAME: i32 noundef [[SIZE:%.*]]) #[[ATTR0]] {
// I386-NEXT: [[ENTRY:.*:]]
// I386-NEXT: [[SIZE_ADDR:%.*]] = alloca i32, align 4
// I386-NEXT: [[P:%.*]] = alloca ptr, align 4
// I386-NEXT: store i32 [[SIZE]], ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[TMP0:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[MUL:%.*]] = mul i32 4, [[TMP0]]
// I386-NEXT: [[ADD:%.*]] = add i32 4, [[MUL]]
// I386-NEXT: [[CALL:%.*]] = call ptr @malloc(i32 noundef [[ADD]]) #[[ATTR2]]
// I386-NEXT: store ptr [[CALL]], ptr [[P]], align 4
// I386-NEXT: [[TMP1:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[CONV:%.*]] = trunc i32 [[TMP1]] to i8
// I386-NEXT: [[TMP2:%.*]] = load ptr, ptr [[P]], align 4
// I386-NEXT: [[DOT_COUNTED_BY_GEP:%.*]] = getelementptr inbounds [[STRUCT_B:%.*]], ptr [[TMP2]], i32 0, i32 1, i32 1, i32 1, i32 0
// I386-NEXT: store i8 [[CONV]], ptr [[DOT_COUNTED_BY_GEP]], align 1
// I386-NEXT: [[TMP3:%.*]] = load ptr, ptr [[P]], align 4
// I386-NEXT: ret ptr [[TMP3]]
//
struct b *test2(int size) {
struct b *p = __builtin_malloc(sizeof(struct a) + sizeof(int) * size);
*__builtin_counted_by_ref(p->array) = size;
return p;
}
struct c {
char x;
short count;
int array[];
};
// X86_64-LABEL: define dso_local ptr @test3(
// X86_64-SAME: i32 noundef [[SIZE:%.*]]) #[[ATTR0]] {
// X86_64-NEXT: [[ENTRY:.*:]]
// X86_64-NEXT: [[SIZE_ADDR:%.*]] = alloca i32, align 4
// X86_64-NEXT: [[P:%.*]] = alloca ptr, align 8
// X86_64-NEXT: [[__IGNORED:%.*]] = alloca i64, align 8
// X86_64-NEXT: store i32 [[SIZE]], ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[TMP0:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[CONV:%.*]] = sext i32 [[TMP0]] to i64
// X86_64-NEXT: [[MUL:%.*]] = mul i64 4, [[CONV]]
// X86_64-NEXT: [[ADD:%.*]] = add i64 4, [[MUL]]
// X86_64-NEXT: [[CALL:%.*]] = call ptr @malloc(i64 noundef [[ADD]]) #[[ATTR2]]
// X86_64-NEXT: store ptr [[CALL]], ptr [[P]], align 8
// X86_64-NEXT: [[TMP1:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// X86_64-NEXT: [[CONV1:%.*]] = sext i32 [[TMP1]] to i64
// X86_64-NEXT: store i64 [[CONV1]], ptr [[__IGNORED]], align 8
// X86_64-NEXT: [[TMP2:%.*]] = load ptr, ptr [[P]], align 8
// X86_64-NEXT: ret ptr [[TMP2]]
//
// I386-LABEL: define dso_local ptr @test3(
// I386-SAME: i32 noundef [[SIZE:%.*]]) #[[ATTR0]] {
// I386-NEXT: [[ENTRY:.*:]]
// I386-NEXT: [[SIZE_ADDR:%.*]] = alloca i32, align 4
// I386-NEXT: [[P:%.*]] = alloca ptr, align 4
// I386-NEXT: [[__IGNORED:%.*]] = alloca i32, align 4
// I386-NEXT: store i32 [[SIZE]], ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[TMP0:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// I386-NEXT: [[MUL:%.*]] = mul i32 4, [[TMP0]]
// I386-NEXT: [[ADD:%.*]] = add i32 4, [[MUL]]
// I386-NEXT: [[CALL:%.*]] = call ptr @malloc(i32 noundef [[ADD]]) #[[ATTR2]]
// I386-NEXT: store ptr [[CALL]], ptr [[P]], align 4
// I386-NEXT: [[TMP1:%.*]] = load i32, ptr [[SIZE_ADDR]], align 4
// I386-NEXT: store i32 [[TMP1]], ptr [[__IGNORED]], align 4
// I386-NEXT: [[TMP2:%.*]] = load ptr, ptr [[P]], align 4
// I386-NEXT: ret ptr [[TMP2]]
//
struct c *test3(int size) {
struct c *p = __builtin_malloc(sizeof(struct c) + sizeof(int) * size);
unsigned long int __ignored;
*_Generic(
__builtin_counted_by_ref(p->array),
void *: &__ignored,
default: __builtin_counted_by_ref(p->array)) = size;
return p;
}
|