fix some comments

Author: bob80905

tools/clang/lib/CodeGen/CGHLSLMSFinishCodeGen.cpp

@@ -2854,7 +2854,7 @@ void TranslateRayQueryConstructor(HLModule &HLM) {
       llvm::IRBuilder<> Builder(CI);
       llvm::Value *rayFlags =
           Builder.getInt32(SA->GetTemplateArgAnnotation(0).GetIntegral());
-      // this could be a nullptr assignment if there is no 2nd template arg
+      // the default val of 0 will be assigned if there is no 2nd template arg
       llvm::Value *rayQueryFlags =
           Builder.getInt32(SA->GetTemplateArgAnnotation(1).GetIntegral());
 

tools/clang/test/CodeGenHLSL/allocateRayQuery2-lower.hlsl

@@ -3,11 +3,7 @@
 // CHECK: %"class.RayQuery<1024, 1>" = type { i32 }
 // CHECK: %"class.RayQuery<1, 0>" = type { i32 }
 
-
-
-
 RaytracingAccelerationStructure RTAS;
-// DXR entry point to ensure RDAT flags match during validation.
 [shader("vertex")]
 void main(RayDesc rayDesc : RAYDESC) {
 

tools/clang/test/CodeGenHLSL/allocateRayQuery2.hlsl

@@ -1,7 +1,6 @@
 // RUN: %dxc -T lib_6_9 %s | FileCheck %s 
 
 RaytracingAccelerationStructure RTAS;
-// DXR entry point to ensure RDAT flags match during validation.
 [shader("vertex")]
 void main(RayDesc rayDesc : RAYDESC) {