[HLSL][DirectX] Avoid some unnecessary casting. NFC

Author: bogner

llvm/include/llvm/Frontend/HLSL/HLSLResource.h

@@ -67,7 +67,7 @@ class FrontendResource {
 
   GlobalVariable *getGlobalVariable();
   StringRef getSourceType();
-  uint32_t getResourceKind();
+  ResourceKind getResourceKind();
   uint32_t getResourceIndex();
   uint32_t getSpace();
   MDNode *getMetadata() { return Entry; }

llvm/lib/Frontend/HLSL/HLSLResource.cpp

@@ -27,10 +27,11 @@ StringRef FrontendResource::getSourceType() {
   return cast<MDString>(Entry->getOperand(1))->getString();
 }
 
-uint32_t FrontendResource::FrontendResource::getResourceKind() {
-  return cast<ConstantInt>(
-             cast<ConstantAsMetadata>(Entry->getOperand(2))->getValue())
-      ->getLimitedValue();
+ResourceKind FrontendResource::getResourceKind() {
+  return static_cast<ResourceKind>(
+      cast<ConstantInt>(
+          cast<ConstantAsMetadata>(Entry->getOperand(2))->getValue())
+          ->getLimitedValue());
 }
 uint32_t FrontendResource::getResourceIndex() {
   return cast<ConstantInt>(

llvm/lib/Target/DirectX/DXILResource.cpp

@@ -233,9 +233,8 @@ void ResourceBase::print(raw_ostream &OS, StringRef IDPrefix,
 }
 
 UAVResource::UAVResource(uint32_t I, FrontendResource R)
-    : ResourceBase(I, R),
-      Shape(static_cast<ResourceBase::Kinds>(R.getResourceKind())),
-      GloballyCoherent(false), HasCounter(false), IsROV(false), ExtProps() {
+    : ResourceBase(I, R), Shape(R.getResourceKind()), GloballyCoherent(false),
+      HasCounter(false), IsROV(false), ExtProps() {
   parseSourceType(R.getSourceType());
 }