1 // RUN: %clang_cc1 -triple arm64-apple-ios -O3 -emit-llvm -o - %s | FileCheck %s
2
f0(void * a,void * b)3 void f0(void *a, void *b) {
4 __clear_cache(a,b);
5 // CHECK: call {{.*}} @__clear_cache
6 }
7
8 // CHECK: call {{.*}} @llvm.aarch64.rbit.i32(i32 %a)
rbit(unsigned a)9 unsigned rbit(unsigned a) {
10 return __builtin_arm_rbit(a);
11 }
12
13 // CHECK: call {{.*}} @llvm.aarch64.rbit.i64(i64 %a)
rbit64(unsigned long long a)14 unsigned long long rbit64(unsigned long long a) {
15 return __builtin_arm_rbit64(a);
16 }
17
hints()18 void hints() {
19 __builtin_arm_nop(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 0)
20 __builtin_arm_yield(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 1)
21 __builtin_arm_wfe(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 2)
22 __builtin_arm_wfi(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 3)
23 __builtin_arm_sev(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 4)
24 __builtin_arm_sevl(); //CHECK: call {{.*}} @llvm.aarch64.hint(i32 5)
25 }
26
barriers()27 void barriers() {
28 __builtin_arm_dmb(1); //CHECK: call {{.*}} @llvm.aarch64.dmb(i32 1)
29 __builtin_arm_dsb(2); //CHECK: call {{.*}} @llvm.aarch64.dsb(i32 2)
30 __builtin_arm_isb(3); //CHECK: call {{.*}} @llvm.aarch64.isb(i32 3)
31 }
32
prefetch()33 void prefetch() {
34 __builtin_arm_prefetch(0, 1, 2, 0, 1); // pstl3keep
35 // CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 1, i32 1, i32 1)
36
37 __builtin_arm_prefetch(0, 0, 0, 1, 1); // pldl1keep
38 // CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 0, i32 0, i32 1)
39
40 __builtin_arm_prefetch(0, 0, 0, 1, 1); // pldl1strm
41 // CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 0, i32 0, i32 1)
42
43 __builtin_arm_prefetch(0, 0, 0, 0, 0); // plil1keep
44 // CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 0, i32 3, i32 0)
45 }
46