Remove emitUDMapperArrayInitOrDel func from Clang.

Author: TIFitis

clang/lib/CodeGen/CGOpenMPRuntime.cpp

@@ -9105,82 +9105,6 @@ void CGOpenMPRuntime::emitUserDefinedMapper(const OMPDeclareMapperDecl *D,
     FunctionUDMMap[CGF->CurFn].push_back(D);
 }
 
-/// Emit the array initialization or deletion portion for user-defined mapper
-/// code generation. First, it evaluates whether an array section is mapped and
-/// whether the \a MapType instructs to delete this section. If \a IsInit is
-/// true, and \a MapType indicates to not delete this array, array
-/// initialization code is generated. If \a IsInit is false, and \a MapType
-/// indicates to not this array, array deletion code is generated.
-void CGOpenMPRuntime::emitUDMapperArrayInitOrDel(
-    CodeGenFunction &MapperCGF, llvm::Value *Handle, llvm::Value *Base,
-    llvm::Value *Begin, llvm::Value *Size, llvm::Value *MapType,
-    llvm::Value *MapName, CharUnits ElementSize, llvm::BasicBlock *ExitBB,
-    bool IsInit) {
-  StringRef Prefix = IsInit ? ".init" : ".del";
-
-  // Evaluate if this is an array section.
-  llvm::BasicBlock *BodyBB =
-      MapperCGF.createBasicBlock(getName({"omp.array", Prefix}));
-  llvm::Value *IsArray = MapperCGF.Builder.CreateICmpSGT(
-      Size, MapperCGF.Builder.getInt64(1), "omp.arrayinit.isarray");
-  llvm::Value *DeleteBit = MapperCGF.Builder.CreateAnd(
-      MapType,
-      MapperCGF.Builder.getInt64(
-          static_cast<std::underlying_type_t<OpenMPOffloadMappingFlags>>(
-              OpenMPOffloadMappingFlags::OMP_MAP_DELETE)));
-  llvm::Value *DeleteCond;
-  llvm::Value *Cond;
-  if (IsInit) {
-    // base != begin?
-    llvm::Value *BaseIsBegin = MapperCGF.Builder.CreateICmpNE(Base, Begin);
-    // IsPtrAndObj?
-    llvm::Value *PtrAndObjBit = MapperCGF.Builder.CreateAnd(
-        MapType,
-        MapperCGF.Builder.getInt64(
-            static_cast<std::underlying_type_t<OpenMPOffloadMappingFlags>>(
-                OpenMPOffloadMappingFlags::OMP_MAP_PTR_AND_OBJ)));
-    PtrAndObjBit = MapperCGF.Builder.CreateIsNotNull(PtrAndObjBit);
-    BaseIsBegin = MapperCGF.Builder.CreateAnd(BaseIsBegin, PtrAndObjBit);
-    Cond = MapperCGF.Builder.CreateOr(IsArray, BaseIsBegin);
-    DeleteCond = MapperCGF.Builder.CreateIsNull(
-        DeleteBit, getName({"omp.array", Prefix, ".delete"}));
-  } else {
-    Cond = IsArray;
-    DeleteCond = MapperCGF.Builder.CreateIsNotNull(
-        DeleteBit, getName({"omp.array", Prefix, ".delete"}));
-  }
-  Cond = MapperCGF.Builder.CreateAnd(Cond, DeleteCond);
-  MapperCGF.Builder.CreateCondBr(Cond, BodyBB, ExitBB);
-
-  MapperCGF.EmitBlock(BodyBB);
-  // Get the array size by multiplying element size and element number (i.e., \p
-  // Size).
-  llvm::Value *ArraySize = MapperCGF.Builder.CreateNUWMul(
-      Size, MapperCGF.Builder.getInt64(ElementSize.getQuantity()));
-  // Remove OMP_MAP_TO and OMP_MAP_FROM from the map type, so that it achieves
-  // memory allocation/deletion purpose only.
-  llvm::Value *MapTypeArg = MapperCGF.Builder.CreateAnd(
-      MapType,
-      MapperCGF.Builder.getInt64(
-          ~static_cast<std::underlying_type_t<OpenMPOffloadMappingFlags>>(
-              OpenMPOffloadMappingFlags::OMP_MAP_TO |
-              OpenMPOffloadMappingFlags::OMP_MAP_FROM)));
-  MapTypeArg = MapperCGF.Builder.CreateOr(
-      MapTypeArg,
-      MapperCGF.Builder.getInt64(
-          static_cast<std::underlying_type_t<OpenMPOffloadMappingFlags>>(
-              OpenMPOffloadMappingFlags::OMP_MAP_IMPLICIT)));
-
-  // Call the runtime API __tgt_push_mapper_component to fill up the runtime
-  // data structure.
-  llvm::Value *OffloadingArgs[] = {Handle,    Base,       Begin,
-                                   ArraySize, MapTypeArg, MapName};
-  MapperCGF.EmitRuntimeCall(
-      OMPBuilder.getOrCreateRuntimeFunction(CGM.getModule(),
-                                            OMPRTL___tgt_push_mapper_component),
-      OffloadingArgs);
-}
-
 llvm::Function *CGOpenMPRuntime::getOrCreateUserDefinedMapperFunc(
     const OMPDeclareMapperDecl *D) {
   auto I = UDMMap.find(D);

clang/lib/CodeGen/CGOpenMPRuntime.h

@@ -559,15 +559,6 @@ class CGOpenMPRuntime {
                                 llvm::Value *Ctor, llvm::Value *CopyCtor,
                                 llvm::Value *Dtor, SourceLocation Loc);
 
-  /// Emit the array initialization or deletion portion for user-defined mapper
-  /// code generation.
-  void emitUDMapperArrayInitOrDel(CodeGenFunction &MapperCGF,
-                                  llvm::Value *Handle, llvm::Value *BasePtr,
-                                  llvm::Value *Ptr, llvm::Value *Size,
-                                  llvm::Value *MapType, llvm::Value *MapName,
-                                  CharUnits ElementSize,
-                                  llvm::BasicBlock *ExitBB, bool IsInit);
-
   struct TaskResultTy {
     llvm::Value *NewTask = nullptr;
     llvm::Function *TaskEntry = nullptr;