[clang] [CIR] Upstream cir.call with scalar arguments (PR #136810)

[Sirui Mu via cfe-commits]

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@@ -17,3 +17,15 @@ int f4() {
 // CHECK-LABEL: cir.func @f4() -> !s32i
 // CHECK:         %[[#x:]] = cir.call @f3() : () -> !s32i
 // CHECK-NEXT:    cir.store %[[#x]], %{{.+}} : !s32i, !cir.ptr<!s32i>
+
+int f5(int a, int *b, bool c);
+int f6() {
+  int b = 1;
+  return f5(2, &b, false);
+}
+
+// CHECK-LABEL: cir.func @f6() -> !s32i
+// CHECK:         %[[#b:]] = cir.alloca !s32i, !cir.ptr<!s32i>, ["b", init]
+// CHECK:         %[[#a:]] = cir.const #cir.int<2> : !s32i
+// CHECK-NEXT:    %[[#c:]] = cir.const #false
+// CHECK-NEXT:    %5 = cir.call @f5(%[[#a]], %[[#b:]], %[[#c]]) : (!s32i, !cir.ptr<!s32i>, !cir.bool) -> !s32i
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Lancern wrote:

The LLVM IR lowering is NYI implemented for `cir.call`. Should I add an empty implementation of `cir.call` LLVMIR lowering?

https://github.com/llvm/llvm-project/pull/136810