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
| // RUN: %clang_cc1 -triple arm64-unknown-linux -disable-O0-optnone -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-LINUX
// RUN: %clang_cc1 -triple aarch64-windows -disable-O0-optnone -S -emit-llvm -o - %s | opt -S -mem2reg | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-WIN
#include <stdint.h>
void f0(void *a, void *b) {
__clear_cache(a,b);
// CHECK: call {{.*}} @__clear_cache
}
void *tp (void) {
return __builtin_thread_pointer ();
// CHECK: call {{.*}} @llvm.thread.pointer()
}
// CHECK: call {{.*}} @llvm.bitreverse.i32(i32 %a)
unsigned rbit(unsigned a) {
return __builtin_arm_rbit(a);
}
// CHECK-WIN: [[A64:%[^ ]+]] = zext i32 %a to i64
// CHECK-WIN: call i64 @llvm.bitreverse.i64(i64 [[A64]])
// CHECK-LINUX: call i64 @llvm.bitreverse.i64(i64 %a)
unsigned long rbitl(unsigned long a) {
return __builtin_arm_rbit64(a);
}
// CHECK: call {{.*}} @llvm.bitreverse.i64(i64 %a)
uint64_t rbit64(uint64_t a) {
return __builtin_arm_rbit64(a);
}
void hints() {
__builtin_arm_nop(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 0)
__builtin_arm_yield(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 1)
__builtin_arm_wfe(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 2)
__builtin_arm_wfi(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 3)
__builtin_arm_sev(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 4)
__builtin_arm_sevl(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 5)
}
void barriers() {
__builtin_arm_dmb(1); //CHECK: call {{.*}} @llvm.aarch64.dmb(i32 1)
__builtin_arm_dsb(2); //CHECK: call {{.*}} @llvm.aarch64.dsb(i32 2)
__builtin_arm_isb(3); //CHECK: call {{.*}} @llvm.aarch64.isb(i32 3)
}
void prefetch() {
__builtin_arm_prefetch(0, 1, 2, 0, 1); // pstl3keep
// CHECK: call {{.*}} @llvm.prefetch.p0i8(i8* null, i32 1, i32 1, i32 1)
__builtin_arm_prefetch(0, 0, 0, 1, 1); // pldl1keep
// CHECK: call {{.*}} @llvm.prefetch.p0i8(i8* null, i32 0, i32 0, i32 1)
__builtin_arm_prefetch(0, 0, 0, 1, 1); // pldl1strm
// CHECK: call {{.*}} @llvm.prefetch.p0i8(i8* null, i32 0, i32 0, i32 1)
__builtin_arm_prefetch(0, 0, 0, 0, 0); // plil1keep
// CHECK: call {{.*}} @llvm.prefetch.p0i8(i8* null, i32 0, i32 3, i32 0)
}
int32_t jcvt(double v) {
//CHECK-LABEL: @jcvt(
//CHECK: call i32 @llvm.aarch64.fjcvtzs
return __builtin_arm_jcvt(v);
}
__typeof__(__builtin_arm_rsr("1:2:3:4:5")) rsr(void);
uint32_t rsr() {
// CHECK: [[V0:[%A-Za-z0-9.]+]] = call i64 @llvm.read_register.i64(metadata ![[M0:[0-9]]])
// CHECK-NEXT: trunc i64 [[V0]] to i32
return __builtin_arm_rsr("1:2:3:4:5");
}
__typeof__(__builtin_arm_rsr64("1:2:3:4:5")) rsr64(void);
uint64_t rsr64(void) {
// CHECK: call i64 @llvm.read_register.i64(metadata ![[M0:[0-9]]])
return __builtin_arm_rsr64("1:2:3:4:5");
}
void *rsrp() {
// CHECK: [[V0:[%A-Za-z0-9.]+]] = call i64 @llvm.read_register.i64(metadata ![[M0:[0-9]]])
// CHECK-NEXT: inttoptr i64 [[V0]] to i8*
return __builtin_arm_rsrp("1:2:3:4:5");
}
__typeof__(__builtin_arm_wsr("1:2:3:4:5", 0)) wsr(unsigned);
void wsr(unsigned v) {
// CHECK: [[V0:[%A-Za-z0-9.]+]] = zext i32 %v to i64
// CHECK-NEXT: call void @llvm.write_register.i64(metadata ![[M0:[0-9]]], i64 [[V0]])
__builtin_arm_wsr("1:2:3:4:5", v);
}
__typeof__(__builtin_arm_wsr64("1:2:3:4:5", 0)) wsr64(uint64_t);
void wsr64(uint64_t v) {
// CHECK: call void @llvm.write_register.i64(metadata ![[M0:[0-9]]], i64 %v)
__builtin_arm_wsr64("1:2:3:4:5", v);
}
void wsrp(void *v) {
// CHECK: [[V0:[%A-Za-z0-9.]+]] = ptrtoint i8* %v to i64
// CHECK-NEXT: call void @llvm.write_register.i64(metadata ![[M0:[0-9]]], i64 [[V0]])
__builtin_arm_wsrp("1:2:3:4:5", v);
}
unsigned int cls(uint32_t v) {
// CHECK: call i32 @llvm.aarch64.cls(i32 %v)
return __builtin_arm_cls(v);
}
unsigned int clsl(unsigned long v) {
// CHECK-WIN: [[V64:%[^ ]+]] = zext i32 %v to i64
// CHECK-WIN: call i32 @llvm.aarch64.cls64(i64 [[V64]]
// CHECK-LINUX: call i32 @llvm.aarch64.cls64(i64 %v)
return __builtin_arm_cls64(v);
}
unsigned int clsll(uint64_t v) {
// CHECK: call i32 @llvm.aarch64.cls64(i64 %v)
return __builtin_arm_cls64(v);
}
// CHECK: ![[M0]] = !{!"1:2:3:4:5"}
|