[DirectX] add Function name to DiagnosticInfoUnsupported Msg in DXILOpLowering

clang/test/CodeGenDirectX/unsupported_intrinsic.hlsl

@@ -0,0 +1,8 @@
+// REQUIRES: directx-registered-target
+// RUN: not %clang_dxc -T lib_6_3 %s 2>&1 | FileCheck %s
+
+// CHECK: error: Unsupported intrinsic llvm.vector.reduce.and.v4i32 for DXIL lowering
+
+export int vecReduceAndTest(int4 vec) {
+    return __builtin_reduce_and(vec);
+}

llvm/lib/Target/DirectX/DXILOpLowering.cpp

@@ -8,7 +8,6 @@
 
 #include "DXILOpLowering.h"
 #include "DXILConstants.h"
-#include "DXILIntrinsicExpansion.h"
 #include "DXILOpBuilder.h"
 #include "DXILShaderFlags.h"
 #include "DirectX.h"
@@ -27,6 +26,7 @@
 #include "llvm/InitializePasses.h"
 #include "llvm/Pass.h"
 #include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormatVariadic.h"
 
 #define DEBUG_TYPE "dxil-op-lower"
 
@@ -756,9 +756,9 @@ class OpLowerer {
       case Intrinsic::not_intrinsic:
         continue;
       default: {
-        DiagnosticInfoUnsupported Diag(
-            F, "Unsupported intrinsic for DXIL lowering");
-        M.getContext().diagnose(Diag);
+        SmallString<128> Msg =
+            formatv("Unsupported intrinsic {0} for DXIL lowering", F.getName());
+        M.getContext().emitError(Msg);
         HasErrors |= true;
         break;
       }

llvm/test/CodeGen/DirectX/unsupported_intrinsic.ll

@@ -1,6 +1,6 @@
 ; RUN: not opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s 2>&1 | FileCheck %s
 
-; CHECK: error: <unknown>:0:0: in function llvm.vector.reduce.and.v4i32 i32 (<4 x i32>): Unsupported intrinsic for DXIL lowering
+; CHECK: error: Unsupported intrinsic llvm.vector.reduce.and.v4i32 for DXIL lowering
 define i32 @fn_and(<4 x i32> %0) local_unnamed_addr #0 {
   %2 = tail call i32 @llvm.vector.reduce.and.v4i32(<4 x i32> %0)
   ret i32 %2