add utility and cleanup

add utility and cleanup

Author: scottp101

IGC/Compiler/CISACodeGen/helper.cpp

@@ -2621,13 +2621,6 @@ namespace IGC
         return headerSize;
     }
 
-    bool DSDualPatchEnabled(class CodeGenContext* ctx)
-    {
-        return ctx->platform.supportDSDualPatchDispatch() &&
-            ctx->platform.WaDisableDSDualPatchMode() &&
-            !(ctx->m_DriverInfo.APIDisableDSDualPatchDispatch()) &&
-            IGC_IS_FLAG_DISABLED(DisableDSDualPatch);
-    }
 
     void InsertOptsMetadata(CodeGenContext* pCtx, llvm::Function* F)
     {

IGC/Compiler/CISACodeGen/helper.h

@@ -500,8 +500,6 @@ namespace IGC
     unsigned int AppendConservativeRastWAHeader(IGC::SProgramOutput* program, SIMDMode simdmode);
     unsigned int AppendConservativeRastWAHeader(void*& pBinary, unsigned int& binarySize, SIMDMode simdmode);
 
-    bool DSDualPatchEnabled(class CodeGenContext* ctx);
-
 
     /// \brief Check whether inst precedes given position in one basic block
     inline bool isInstPrecede(

IGC/Compiler/MetaDataApi/IGCMetaDataHelper.cpp

@@ -43,6 +43,26 @@ void IGCMetaDataHelper::moveFunction(
     }
 }
 
+void IGCMetaDataHelper::copyFunction(
+    MetaDataUtils& mdUtils,
+    ModuleMetaData& MD,
+    llvm::Function* OldFunc, llvm::Function* NewFunc)
+{
+    auto oldFuncIter = mdUtils.findFunctionsInfoItem(OldFunc);
+    if (oldFuncIter != mdUtils.end_FunctionsInfo())
+    {
+        mdUtils.setFunctionsInfoItem(NewFunc, oldFuncIter->second);
+    }
+
+    auto& FuncMD = MD.FuncMD;
+    auto loc = FuncMD.find(OldFunc);
+    if (loc != FuncMD.end())
+    {
+        auto funcInfo = loc->second;
+        FuncMD[NewFunc] = funcInfo;
+    }
+}
+
 void IGCMetaDataHelper::removeFunction(
     MetaDataUtils& mdUtils,
     ModuleMetaData& MD,

IGC/Compiler/MetaDataApi/IGCMetaDataHelper.h

@@ -19,6 +19,7 @@ namespace IGC::IGCMD {
     public:
         static void addFunction(MetaDataUtils& mdUtils, llvm::Function* pFunc, IGC::FunctionTypeMD type = IGC::FunctionTypeMD::KernelFunction);
         static void moveFunction(MetaDataUtils& mdUtils, ModuleMetaData& MD, llvm::Function* OldFunc, llvm::Function* NewFunc);
+        static void copyFunction(MetaDataUtils& mdUtils, ModuleMetaData& MD, llvm::Function* OldFunc, llvm::Function* NewFunc);
         static void removeFunction(MetaDataUtils& mdUtils, ModuleMetaData& MD, llvm::Function* Func);
 
         // In OCL, thread group size (hint) is given by kernel attributes reqd_work_group_size and work_group_size_hint.