[AMDGPUCodegenPrepare] Add NewPM Support

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D151241

Author: gandhi56

llvm/lib/Target/AMDGPU/AMDGPU.h

@@ -254,6 +254,16 @@ struct AMDGPUAlwaysInlinePass : PassInfoMixin<AMDGPUAlwaysInlinePass> {
   bool GlobalOpt;
 };
 
+class AMDGPUCodeGenPreparePass
+    : public PassInfoMixin<AMDGPUCodeGenPreparePass> {
+private:
+  TargetMachine &TM;
+
+public:
+  AMDGPUCodeGenPreparePass(TargetMachine &TM) : TM(TM){};
+  PreservedAnalyses run(Function &, FunctionAnalysisManager &);
+};
+
 FunctionPass *createAMDGPUAnnotateUniformValues();
 
 ModulePass *createAMDGPUPrintfRuntimeBinding();