lib/Target/AVR/AVR.h

   1 //===-- AVR.h - Top-level interface for AVR representation ------*- C++ -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file contains the entry points for global functions defined in the LLVM
  10 // AVR back-end.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_AVR_H
  15 #define LLVM_AVR_H
  16
  17 #include "llvm/CodeGen/SelectionDAGNodes.h"
  18 #include "llvm/Target/TargetMachine.h"
  19
  20 namespace llvm {
  21
  22 class AVRTargetMachine;
  23 class FunctionPass;
  24
  25 FunctionPass *createAVRISelDag(AVRTargetMachine &TM,
  26                                CodeGenOpt::Level OptLevel);
  27 FunctionPass *createAVRExpandPseudoPass();
  28 FunctionPass *createAVRFrameAnalyzerPass();
  29 FunctionPass *createAVRRelaxMemPass();
  30 FunctionPass *createAVRDynAllocaSRPass();
  31 FunctionPass *createAVRBranchSelectionPass();
  32
  33 void initializeAVRExpandPseudoPass(PassRegistry&);
  34 void initializeAVRRelaxMemPass(PassRegistry&);
  35
  36 /// Contains the AVR backend.
  37 namespace AVR {
  38
  39 /// An integer that identifies all of the supported AVR address spaces.
  40 enum AddressSpace { DataMemory, ProgramMemory };
  41
  42 /// Checks if a given type is a pointer to program memory.
  43 template <typename T> bool isProgramMemoryAddress(T *V) {
  44   return cast<PointerType>(V->getType())->getAddressSpace() == ProgramMemory;
  45 }
  46
  47 inline bool isProgramMemoryAccess(MemSDNode const *N) {
  48   auto V = N->getMemOperand()->getValue();
  49
  50   return (V != nullptr) ? isProgramMemoryAddress(V) : false;
  51 }
  52
  53 } // end of namespace AVR
  54
  55 } // end namespace llvm
  56
  57 #endif // LLVM_AVR_H