TheRock/compiler/amd-llvm/clang/test/CIR/Lowering/call-llvm-intrinsic.cir

// RUN: cir-opt %s -cir-to-llvm -o - | FileCheck %s

// Contract test for CIRToLLVMLLVMIntrinsicCallOpLowering: the op def
// declares Optional<CIR_AnyType>:$result, so the lowering must accept
// 0-result (void) calls in addition to the single-result case.

!s32i = !cir.int<s, 32>

module {
  // 0-result, 0-operand.
  // CHECK-LABEL: llvm.func @void_no_operands
  // CHECK:         llvm.call_intrinsic "llvm.donothing"() : () -> ()
  // CHECK:         llvm.return
  cir.func @void_no_operands() {
    cir.call_llvm_intrinsic "donothing" : () -> ()
    cir.return
  }

  // 0-result with one operand.
  // CHECK-LABEL: llvm.func @void_with_operand
  // CHECK:         llvm.call_intrinsic "llvm.amdgcn.s.sleep"(%{{.*}}) : (i32) -> ()
  // CHECK:         llvm.return
  cir.func @void_with_operand(%arg0: !s32i) {
    cir.call_llvm_intrinsic "amdgcn.s.sleep" %arg0 : (!s32i) -> ()
    cir.return
  }
}