File: amdgcn-automatic-variable.cpp

package info (click to toggle)
llvm-toolchain-21 1%3A21.1.0-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 2,235,796 kB
  • sloc: cpp: 7,617,614; ansic: 1,433,901; asm: 1,058,726; python: 252,096; f90: 94,671; objc: 70,753; lisp: 42,813; pascal: 18,401; sh: 10,032; ml: 5,111; perl: 4,720; awk: 3,523; makefile: 3,401; javascript: 2,272; xml: 892; fortran: 770
file content (159 lines) | stat: -rw-r--r-- 5,814 bytes parent folder | download | duplicates (4)
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
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
// RUN: %clang_cc1 -O0 -triple amdgcn---amdgiz -emit-llvm %s -o - | FileCheck %s

// CHECK-LABEL: @_Z5func1Pi(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[X_ADDR:%.*]] = alloca ptr, align 8, addrspace(5)
// CHECK-NEXT:    [[X_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[X_ADDR]] to ptr
// CHECK-NEXT:    store ptr [[X:%.*]], ptr [[X_ADDR_ASCAST]], align 8
// CHECK-NEXT:    [[TMP0:%.*]] = load ptr, ptr [[X_ADDR_ASCAST]], align 8
// CHECK-NEXT:    store i32 1, ptr [[TMP0]], align 4
// CHECK-NEXT:    ret void
//
void func1(int *x) {
  *x = 1;
}

// CHECK-LABEL: @_Z5func2v(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[LV1:%.*]] = alloca i32, align 4, addrspace(5)
// CHECK-NEXT:    [[LV2:%.*]] = alloca i32, align 4, addrspace(5)
// CHECK-NEXT:    [[LA:%.*]] = alloca [100 x i32], align 4, addrspace(5)
// CHECK-NEXT:    [[LP1:%.*]] = alloca ptr, align 8, addrspace(5)
// CHECK-NEXT:    [[LP2:%.*]] = alloca ptr, align 8, addrspace(5)
// CHECK-NEXT:    [[LVC:%.*]] = alloca i32, align 4, addrspace(5)
// CHECK-NEXT:    [[LV1_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[LV1]] to ptr
// CHECK-NEXT:    [[LV2_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[LV2]] to ptr
// CHECK-NEXT:    [[LA_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[LA]] to ptr
// CHECK-NEXT:    [[LP1_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[LP1]] to ptr
// CHECK-NEXT:    [[LP2_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[LP2]] to ptr
// CHECK-NEXT:    [[LVC_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[LVC]] to ptr
// CHECK-NEXT:    store i32 1, ptr [[LV1_ASCAST]], align 4
// CHECK-NEXT:    store i32 2, ptr [[LV2_ASCAST]], align 4
// CHECK-NEXT:    [[ARRAYIDX:%.*]] = getelementptr inbounds [100 x i32], ptr [[LA_ASCAST]], i64 0, i64 0
// CHECK-NEXT:    store i32 3, ptr [[ARRAYIDX]], align 4
// CHECK-NEXT:    store ptr [[LV1_ASCAST]], ptr [[LP1_ASCAST]], align 8
// CHECK-NEXT:    [[ARRAYDECAY:%.*]] = getelementptr inbounds [100 x i32], ptr [[LA_ASCAST]], i64 0, i64 0
// CHECK-NEXT:    store ptr [[ARRAYDECAY]], ptr [[LP2_ASCAST]], align 8
// CHECK-NEXT:    call void @_Z5func1Pi(ptr noundef [[LV1_ASCAST]])
// CHECK-NEXT:    store i32 4, ptr [[LVC_ASCAST]], align 4
// CHECK-NEXT:    store i32 4, ptr [[LV1_ASCAST]], align 4
// CHECK-NEXT:    ret void
//
void func2(void) {

  int lv1;
  lv1 = 1;
  int lv2 = 2;

  int la[100];
  la[0] = 3;

  int *lp1 = &lv1;

  int *lp2 = la;

  func1(&lv1);

  const int lvc = 4;
  lv1 = lvc;
}

void destroy(int x);

class A {
int x;
public:
  A():x(0) {}
  ~A() {
   destroy(x);
  }
};

// CHECK-LABEL: @_Z5func3v(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[A:%.*]] = alloca [[CLASS_A:%.*]], align 4, addrspace(5)
// CHECK-NEXT:    [[A_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[A]] to ptr
// CHECK-NEXT:    call void @_ZN1AC1Ev(ptr noundef nonnull align 4 dereferenceable(4) [[A_ASCAST]])
// CHECK-NEXT:    call void @_ZN1AD1Ev(ptr noundef nonnull align 4 dereferenceable(4) [[A_ASCAST]])
// CHECK-NEXT:    ret void
//
void func3() {
  A a;
}

// CHECK-LABEL: @_Z5func4i(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[X_ADDR:%.*]] = alloca i32, align 4, addrspace(5)
// CHECK-NEXT:    [[X_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[X_ADDR]] to ptr
// CHECK-NEXT:    store i32 [[X:%.*]], ptr [[X_ADDR_ASCAST]], align 4
// CHECK-NEXT:    call void @_Z5func1Pi(ptr noundef [[X_ADDR_ASCAST]])
// CHECK-NEXT:    ret void
//
void func4(int x) {
  func1(&x);
}

// CHECK-LABEL: @_Z5func5v(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[X:%.*]] = alloca i32, align 4, addrspace(5)
// CHECK-NEXT:    [[X_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[X]] to ptr
// CHECK-NEXT:    ret void
//
void func5() {
  return;
  int x = 0;
}

// CHECK-LABEL: @_Z5func6v(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[X:%.*]] = alloca i32, align 4, addrspace(5)
// CHECK-NEXT:    [[X_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[X]] to ptr
// CHECK-NEXT:    ret void
//
void func6() {
  return;
  int x;
}

extern void use(int *);
// CHECK-LABEL: @_Z5func7v(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[X:%.*]] = alloca i32, align 4, addrspace(5)
// CHECK-NEXT:    [[X_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[X]] to ptr
// CHECK-NEXT:    br label [[LATER:%.*]]
// CHECK:       later:
// CHECK-NEXT:    call void @_Z3usePi(ptr noundef [[X_ASCAST]])
// CHECK-NEXT:    ret void
//
void func7() {
  goto later;
  int x;
later:
  use(&x);
}

#define __private __attribute__((opencl_private))

// CHECK-LABEL: @_Z34explicit_private_address_space_ptrv(
// CHECK-NEXT:  entry:
// CHECK-NEXT:    [[VAR:%.*]] = alloca i64, align 8, addrspace(5)
// CHECK-NEXT:    [[ALLOCA_ADDR:%.*]] = alloca ptr, align 8, addrspace(5)
// CHECK-NEXT:    [[ALLOCA_ADDR_AS_PRIVATE:%.*]] = alloca ptr addrspace(5), align 4, addrspace(5)
// CHECK-NEXT:    [[VAR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[VAR]] to ptr
// CHECK-NEXT:    [[ALLOCA_ADDR_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[ALLOCA_ADDR]] to ptr
// CHECK-NEXT:    [[ALLOCA_ADDR_AS_PRIVATE_ASCAST:%.*]] = addrspacecast ptr addrspace(5) [[ALLOCA_ADDR_AS_PRIVATE]] to ptr
// CHECK-NEXT:    store ptr [[VAR_ASCAST]], ptr [[ALLOCA_ADDR_ASCAST]], align 8
// CHECK-NEXT:    [[VAR_ASCAST_ASCAST:%.*]] = addrspacecast ptr [[VAR_ASCAST]] to ptr addrspace(5)
// CHECK-NEXT:    store ptr addrspace(5) [[VAR_ASCAST_ASCAST]], ptr [[ALLOCA_ADDR_AS_PRIVATE_ASCAST]], align 4
// CHECK-NEXT:    [[TMP0:%.*]] = load ptr addrspace(5), ptr [[ALLOCA_ADDR_AS_PRIVATE_ASCAST]], align 4
// CHECK-NEXT:    store i64 8, ptr addrspace(5) [[TMP0]], align 8
// CHECK-NEXT:    ret void
//
void explicit_private_address_space_ptr() {
  long var;
  long *alloca_addr = &var;

  __private long *alloca_addr_as_private = (__private long *)&var;
  *alloca_addr_as_private = 8;
}