align_value.cpp
6.7 KB
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
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
typedef double * __attribute__((align_value(64))) aligned_double;
// CHECK-LABEL: define {{[^@]+}}@_Z3fooPdS_Rd
// CHECK-SAME: (double* align 64 [[X:%.*]], double* align 32 [[Y:%.*]], double* nonnull align 128 dereferenceable(8) [[Z:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double*, align 8
// CHECK-NEXT: [[Y_ADDR:%.*]] = alloca double*, align 8
// CHECK-NEXT: [[Z_ADDR:%.*]] = alloca double*, align 8
// CHECK-NEXT: store double* [[X]], double** [[X_ADDR]], align 8
// CHECK-NEXT: store double* [[Y]], double** [[Y_ADDR]], align 8
// CHECK-NEXT: store double* [[Z]], double** [[Z_ADDR]], align 8
// CHECK-NEXT: ret void
//
void foo(aligned_double x, double * y __attribute__((align_value(32))),
double & z __attribute__((align_value(128)))) { };
struct ad_struct {
aligned_double a;
};
// CHECK-LABEL: define {{[^@]+}}@_Z3fooR9ad_struct
// CHECK-SAME: (%struct.ad_struct* nonnull align 8 dereferenceable(8) [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca %struct.ad_struct*, align 8
// CHECK-NEXT: store %struct.ad_struct* [[X]], %struct.ad_struct** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load %struct.ad_struct*, %struct.ad_struct** [[X_ADDR]], align 8
// CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_AD_STRUCT:%.*]], %struct.ad_struct* [[TMP0]], i32 0, i32 0
// CHECK-NEXT: [[TMP1:%.*]] = load double*, double** [[A]], align 8
// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(double* [[TMP1]], i64 64) ]
// CHECK-NEXT: ret double* [[TMP1]]
//
double *foo(ad_struct& x) {
return x.a;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3gooP9ad_struct
// CHECK-SAME: (%struct.ad_struct* [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca %struct.ad_struct*, align 8
// CHECK-NEXT: store %struct.ad_struct* [[X]], %struct.ad_struct** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load %struct.ad_struct*, %struct.ad_struct** [[X_ADDR]], align 8
// CHECK-NEXT: [[A:%.*]] = getelementptr inbounds [[STRUCT_AD_STRUCT:%.*]], %struct.ad_struct* [[TMP0]], i32 0, i32 0
// CHECK-NEXT: [[TMP1:%.*]] = load double*, double** [[A]], align 8
// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(double* [[TMP1]], i64 64) ]
// CHECK-NEXT: ret double* [[TMP1]]
//
double *goo(ad_struct *x) {
return x->a;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3barPPd
// CHECK-SAME: (double** [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double**, align 8
// CHECK-NEXT: store double** [[X]], double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double**, double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP1:%.*]] = load double*, double** [[TMP0]], align 8
// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(double* [[TMP1]], i64 64) ]
// CHECK-NEXT: ret double* [[TMP1]]
//
double *bar(aligned_double *x) {
return *x;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3carRPd
// CHECK-SAME: (double** nonnull align 8 dereferenceable(8) [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double**, align 8
// CHECK-NEXT: store double** [[X]], double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double**, double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP1:%.*]] = load double*, double** [[TMP0]], align 8
// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(double* [[TMP1]], i64 64) ]
// CHECK-NEXT: ret double* [[TMP1]]
//
double *car(aligned_double &x) {
return x;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3darPPd
// CHECK-SAME: (double** [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double**, align 8
// CHECK-NEXT: store double** [[X]], double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double**, double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds double*, double** [[TMP0]], i64 5
// CHECK-NEXT: [[TMP1:%.*]] = load double*, double** [[ARRAYIDX]], align 8
// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(double* [[TMP1]], i64 64) ]
// CHECK-NEXT: ret double* [[TMP1]]
//
double *dar(aligned_double *x) {
return x[5];
}
aligned_double eep();
// CHECK-LABEL: define {{[^@]+}}@_Z3retv() #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[CALL:%.*]] = call double* @_Z3eepv()
// CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(double* [[CALL]], i64 64) ]
// CHECK-NEXT: ret double* [[CALL]]
//
double *ret() {
return eep();
}
// CHECK-LABEL: define {{[^@]+}}@_Z3no1PPd
// CHECK-SAME: (double** [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double**, align 8
// CHECK-NEXT: store double** [[X]], double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double**, double*** [[X_ADDR]], align 8
// CHECK-NEXT: ret double** [[TMP0]]
//
double **no1(aligned_double *x) {
return x;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3no2RPd
// CHECK-SAME: (double** nonnull align 8 dereferenceable(8) [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double**, align 8
// CHECK-NEXT: store double** [[X]], double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double**, double*** [[X_ADDR]], align 8
// CHECK-NEXT: ret double** [[TMP0]]
//
double *&no2(aligned_double &x) {
return x;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3no3RPd
// CHECK-SAME: (double** nonnull align 8 dereferenceable(8) [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double**, align 8
// CHECK-NEXT: store double** [[X]], double*** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double**, double*** [[X_ADDR]], align 8
// CHECK-NEXT: ret double** [[TMP0]]
//
double **no3(aligned_double &x) {
return &x;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3no3Pd
// CHECK-SAME: (double* align 64 [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double*, align 8
// CHECK-NEXT: store double* [[X]], double** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double*, double** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP1:%.*]] = load double, double* [[TMP0]], align 8
// CHECK-NEXT: ret double [[TMP1]]
//
double no3(aligned_double x) {
return *x;
}
// CHECK-LABEL: define {{[^@]+}}@_Z3no4Pd
// CHECK-SAME: (double* align 64 [[X:%.*]]) #0
// CHECK-NEXT: entry:
// CHECK-NEXT: [[X_ADDR:%.*]] = alloca double*, align 8
// CHECK-NEXT: store double* [[X]], double** [[X_ADDR]], align 8
// CHECK-NEXT: [[TMP0:%.*]] = load double*, double** [[X_ADDR]], align 8
// CHECK-NEXT: ret double* [[TMP0]]
//
double *no4(aligned_double x) {
return x;
}