C++ (Cpp) __builtin_arm_prefetch Examples

Example #1

File: builtins-arm.c Project: cms-externals/clang

void prefetch(int i) {
  __builtin_arm_prefetch(&i, 0, 1);
// CHECK: call {{.*}} @llvm.prefetch(i8* %{{.*}}, i32 0, i32 3, i32 1)

  __builtin_arm_prefetch(&i, 1, 1);
// CHECK: call {{.*}} @llvm.prefetch(i8* %{{.*}}, i32 1, i32 3, i32 1)


  __builtin_arm_prefetch(&i, 1, 0);
// CHECK: call {{.*}} @llvm.prefetch(i8* %{{.*}}, i32 1, i32 3, i32 0)
}

Example #2

File: builtins-arm64.c Project: AnachroNia/clang

void prefetch() {
  __builtin_arm_prefetch(0, 1, 2, 0, 1); // pstl3keep
// CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 1, i32 1, i32 1)

  __builtin_arm_prefetch(0, 0, 0, 1, 1); // pldl1keep
// CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 0, i32 0, i32 1)

  __builtin_arm_prefetch(0, 0, 0, 1, 1); // pldl1strm
// CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 0, i32 0, i32 1)

  __builtin_arm_prefetch(0, 0, 0, 0, 0); // plil1keep
// CHECK: call {{.*}} @llvm.prefetch(i8* null, i32 0, i32 3, i32 0)
}

Example #3

File: builtins-arm.c Project: 4ntoine/clang

void test4() {
  __builtin_arm_prefetch(0, 2, 0); // expected-error {{argument should be a value from 0 to 1}}
  __builtin_arm_prefetch(0, 0, 2); // expected-error {{argument should be a value from 0 to 1}}
}