diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 323675a..56bc3ac 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -315,8 +315,18 @@
   return checkOpenCLBlockArgs(S, BlockArg);
 }
 
+/// Diagnose integer type and any valid implicit convertion to it.
+static bool checkOpenCLEnqueueIntType(Sema &S, Expr *E,
+                                      const QualType &IntType);
+
 static bool checkOpenCLEnqueueLocalSizeArgs(Sema &S, CallExpr *TheCall,
-                                            unsigned Start, unsigned End);
+                                            unsigned Start, unsigned End) {
+  bool IllegalParams = false;
+  for (unsigned I = Start; I <= End; ++I)
+    IllegalParams |= checkOpenCLEnqueueIntType(S, TheCall->getArg(I),
+                                              S.Context.getSizeType());
+  return IllegalParams;
+}
 
 /// OpenCL v2.0, s6.13.17.1 - Check that sizes are provided for all
 /// 'local void*' parameter of passed block.
@@ -9325,25 +9335,19 @@
 
 } // end anonymous namespace
 
-static bool checkOpenCLEnqueueLocalSizeArgs(Sema &S, CallExpr *TheCall,
-                                            unsigned Start, unsigned End) {
-  bool IllegalParams = false;
-  for (unsigned I = Start; I <= End; ++I) {
-    QualType Ty = TheCall->getArg(I)->getType();
-    // Taking into account implicit conversions,
-    // allow any integer within 32 bits range
-    if (!Ty->isIntegerType() ||
-        S.Context.getTypeSizeInChars(Ty).getQuantity() > 4) {
-      S.Diag(TheCall->getArg(I)->getLocStart(),
-             diag::err_opencl_enqueue_kernel_invalid_local_size_type);
-      IllegalParams = true;
-    }
-    // Potentially emit standard warnings for implicit conversions if enabled
-    // using -Wconversion.
-    CheckImplicitConversion(S, TheCall->getArg(I), S.Context.UnsignedIntTy,
-                            TheCall->getArg(I)->getLocStart());
+/// Diagnose integer type and any valid implicit convertion to it.
+static bool checkOpenCLEnqueueIntType(Sema &S, Expr *E, const QualType &IntT) {
+  // Taking into account implicit conversions,
+  // allow any integer.
+  if (!E->getType()->isIntegerType()) {
+    S.Diag(E->getLocStart(),
+           diag::err_opencl_enqueue_kernel_invalid_local_size_type);
+    return true;
   }
-  return IllegalParams;
+  // Potentially emit standard warnings for implicit conversions if enabled
+  // using -Wconversion.
+  CheckImplicitConversion(S, E, IntT, E->getLocStart());
+  return false;
 }
 
 // Helper function for Sema::DiagnoseAlwaysNonNullPointer.