Value *CodeGenFunction::EmitARMBuiltinExpr(unsigned BuiltinID,
const CallExpr *E) {
- if (BuiltinID == ARM::BI__yield) {
- Function *F = CGM.getIntrinsic(Intrinsic::arm_hint);
- return Builder.CreateCall(F, llvm::ConstantInt::get(Int32Ty, 1));
+ unsigned HintID = static_cast<unsigned>(-1);
+ switch (BuiltinID) {
+ default: break;
+ case ARM::BI__yield:
+ HintID = 1;
+ break;
+ case ARM::BI__wfe:
+ HintID = 2;
+ break;
+ case ARM::BI__wfi:
+ HintID = 3;
+ break;
+ case ARM::BI__sev:
+ HintID = 4;
+ break;
+ case ARM::BI__sevl:
+ HintID = 5;
+ break;
}
- if (BuiltinID == ARM::BI__sevl) {
+ if (HintID != static_cast<unsigned>(-1)) {
Function *F = CGM.getIntrinsic(Intrinsic::arm_hint);
- return Builder.CreateCall(F, llvm::ConstantInt::get(Int32Ty, 5));
+ return Builder.CreateCall(F, llvm::ConstantInt::get(Int32Ty, HintID));
}
if (BuiltinID == ARM::BI__clear_cache) {
res = __builtin_eh_return_data_regno(1); // CHECK: store volatile i32 1
}
+void yield() {
+ __yield();
+}
+
+// CHECK: call {{.*}} @llvm.arm.hint(i32 1)
+
+void wfe() {
+ __wfe();
+}
+
+// CHECK: call {{.*}} @llvm.arm.hint(i32 2)
+
+void wfi() {
+ __wfi();
+}
+
+// CHECK: call {{.*}} @llvm.arm.hint(i32 3)
+
+void sev() {
+ __sev();
+}
+
+// CHECK: call {{.*}} @llvm.arm.hint(i32 4)
+
void sevl() {
__sevl();
}