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
|
// RUN: %clang_cc1 -triple x86_64-gnu-linux -emit-llvm %s -o - | FileCheck %s
#define __maybe_undef __attribute__((maybe_undef))
// CHECK: define{{.*}} void @t1(i32 noundef [[TMP1:%.*]], i32 noundef [[TMP2:%.*]], i32 noundef [[TMP3:%.*]])
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP4:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[TMP5:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[TMP6:%.*]] = alloca i32, align 4
// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP4:%.*]], align 4
// CHECK-NEXT: store i32 [[TMP2:%.*]], ptr [[TMP5:%.*]], align 4
// CHECK-NEXT: store i32 [[TMP3:%.*]], ptr [[TMP6:%.*]], align 4
// CHECK-NEXT: ret void
// CHECK: define{{.*}} void @t2(i32 noundef [[TMP1:%.*]], i32 noundef [[TMP2:%.*]], i32 noundef [[TMP3:%.*]])
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP4:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[TMP5:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[TMP6:%.*]] = alloca i32, align 4
// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP4:%.*]], align 4
// CHECK-NEXT: store i32 [[TMP2:%.*]], ptr [[TMP5:%.*]], align 4
// CHECK-NEXT: store i32 [[TMP3:%.*]], ptr [[TMP6:%.*]], align 4
// CHECK-NEXT: [[TMP7:%.*]] = load i32, ptr [[TMP4:%.*]], align 4
// CHECK-NEXT: [[TMP8:%.*]] = load i32, ptr [[TMP5:%.*]], align 4
// CHECK-NEXT: [[TMP9:%.*]] = load i32, ptr [[TMP6:%.*]], align 4
// CHECK-NEXT: [[TMP10:%.*]] = freeze i32 [[TMP8:%.*]]
// CHECK-NEXT: call void @t1(i32 noundef [[TMP7:%.*]], i32 noundef [[TMP10:%.*]], i32 noundef [[TMP9:%.*]])
// CHECK-NEXT: ret void
void t1(int param1, int __maybe_undef param2, int param3) {}
void t2(int param1, int param2, int param3) {
t1(param1, param2, param3);
}
// CHECK: define{{.*}} void @TestVariadicFunction(i32 noundef [[TMP0:%.*]], ...)
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP1:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
// CHECK-NEXT: store i32 [[TMP0:%.*]], ptr [[TMP1:%.*]], align 4
// CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
// CHECK-NEXT: [[TMP4:%.*]] = load i32, ptr [[TMP2:%.*]], align 4
// CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[TMP2:%.*]], align 4
// CHECK-NEXT: [[TMP5:%.*]] = freeze i32 [[TMP2:%.*]]
// CHECK-NEXT: call void (i32, ...) @VariadicFunction(i32 noundef [[TMP6:%.*]], i32 noundef [[TMP4:%.*]], i32 noundef [[TMP5:%.*]])
// CHECK-NEXT: ret void
// CHECK: declare{{.*}} void @VariadicFunction(i32 noundef, ...)
void VariadicFunction(int __maybe_undef x, ...);
void TestVariadicFunction(int x, ...) {
int Var;
return VariadicFunction(x, Var, Var);
}
// CHECK: define{{.*}} void @other()
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP1:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
// CHECK-NEXT: call void @func(i32 noundef [[TMP2:%.*]])
// CHECK-NEXT: [[TMP3:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
// CHECK-NEXT: [[TMP4:%.*]] = freeze i32 [[TMP3:%.*]]
// CHECK-NEXT: call void @func1(i32 noundef [[TMP4:%.*]])
// CHECK-NEXT: ret void
// CHECK: define{{.*}} void @func(i32 noundef [[TMP1:%.*]])
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP2:%.*]], align 4
// CHECK-NEXT: ret void
// CHECK: define{{.*}} void @func1(i32 noundef [[TMP1:%.*]])
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP2:%.*]], align 4
// CHECK-NEXT: ret void
void func(int param);
void func1(int __maybe_undef param);
void other() {
int Var;
func(Var);
func1(Var);
}
void func(__maybe_undef int param) {}
void func1(int param) {}
// CHECK: define{{.*}} void @foo(i32 noundef [[TMP1:%.*]])
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP2:%.*]] = alloca i32, align 4
// CHECK-NEXT: store i32 [[TMP1:%.*]], ptr [[TMP2:%.*]], align 4
// CHECK-NEXT: ret void
// CHECK: define{{.*}} void @bar()
// CHECK-NEXT: entry:
// CHECK-NEXT: [[TMP1:%.*]] = alloca i32, align 4
// CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[TMP1:%.*]], align 4
// CHECK-NEXT: call void @foo(i32 noundef [[TMP2:%.*]])
// CHECK-NEXT: ret void
void foo(__maybe_undef int param);
void foo(int param) {}
void bar() {
int Var;
foo(Var);
}
|
