builtins-arm.c revision 176edba5311f6eff0cad2631449885ddf4fbc9ea 
1// REQUIRES: arm-registered-target
2// RUN: %clang_cc1 -Wall -Werror -triple thumbv7-eabi -target-cpu cortex-a8 -O3 -emit-llvm -o - %s | FileCheck %s
3
4void *f0()
5{
6  return __builtin_thread_pointer();
7}
8
9void f1(char *a, char *b) {
10	__clear_cache(a,b);
11}
12
13// CHECK: call {{.*}} @__clear_cache
14
15void test_eh_return_data_regno()
16{
17  volatile int res;
18  res = __builtin_eh_return_data_regno(0);  // CHECK: store volatile i32 0
19  res = __builtin_eh_return_data_regno(1);  // CHECK: store volatile i32 1
20}
21
22void nop() {
23  __builtin_arm_nop();
24}
25
26// CHECK: call {{.*}} @llvm.arm.hint(i32 0)
27
28void yield() {
29  __builtin_arm_yield();
30}
31
32// CHECK: call {{.*}} @llvm.arm.hint(i32 1)
33
34void wfe() {
35  __builtin_arm_wfe();
36}
37
38// CHECK: call {{.*}} @llvm.arm.hint(i32 2)
39
40void wfi() {
41  __builtin_arm_wfi();
42}
43
44// CHECK: call {{.*}} @llvm.arm.hint(i32 3)
45
46void sev() {
47  __builtin_arm_sev();
48}
49
50// CHECK: call {{.*}} @llvm.arm.hint(i32 4)
51
52void sevl() {
53  __builtin_arm_sevl();
54}
55
56// CHECK: call {{.*}} @llvm.arm.hint(i32 5)
57
58void dbg() {
59  __builtin_arm_dbg(0);
60}
61
62// CHECK: call {{.*}} @llvm.arm.dbg(i32 0)
63
64void test_barrier() {
65  __builtin_arm_dmb(1); //CHECK: call {{.*}} @llvm.arm.dmb(i32 1)
66  __builtin_arm_dsb(2); //CHECK: call {{.*}} @llvm.arm.dsb(i32 2)
67  __builtin_arm_isb(3); //CHECK: call {{.*}} @llvm.arm.isb(i32 3)
68}
69
70// CHECK: call {{.*}} @llvm.arm.rbit(i32 %a)
71
72unsigned rbit(unsigned a) {
73  return __builtin_arm_rbit(a);
74}
75
76void prefetch(int i) {
77  __builtin_arm_prefetch(&i, 0, 1);
78// CHECK: call {{.*}} @llvm.prefetch(i8* %{{.*}}, i32 0, i32 3, i32 1)
79
80  __builtin_arm_prefetch(&i, 1, 1);
81// CHECK: call {{.*}} @llvm.prefetch(i8* %{{.*}}, i32 1, i32 3, i32 1)
82
83
84  __builtin_arm_prefetch(&i, 1, 0);
85// CHECK: call {{.*}} @llvm.prefetch(i8* %{{.*}}, i32 1, i32 3, i32 0)
86}
87