1 //===-- AVR.h - Top-level interface for AVR representation ------*- C++ -*-===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file contains the entry points for global functions defined in the LLVM
11 // AVR back-end.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_AVR_H
16 #define LLVM_AVR_H
17 
18 #include "llvm/CodeGen/SelectionDAGNodes.h"
19 #include "llvm/Target/TargetMachine.h"
20 
21 namespace llvm {
22 
23 class AVRTargetMachine;
24 class FunctionPass;
25 
26 FunctionPass *createAVRISelDag(AVRTargetMachine &TM,
27                                CodeGenOpt::Level OptLevel);
28 FunctionPass *createAVRExpandPseudoPass();
29 FunctionPass *createAVRFrameAnalyzerPass();
30 FunctionPass *createAVRRelaxMemPass();
31 FunctionPass *createAVRDynAllocaSRPass();
32 FunctionPass *createAVRBranchSelectionPass();
33 
34 void initializeAVRExpandPseudoPass(PassRegistry&);
35 void initializeAVRRelaxMemPass(PassRegistry&);
36 
37 /// Contains the AVR backend.
38 namespace AVR {
39 
40 /// An integer that identifies all of the supported AVR address spaces.
41 enum AddressSpace { DataMemory, ProgramMemory };
42 
43 /// Checks if a given type is a pointer to program memory.
isProgramMemoryAddress(T * V)44 template <typename T> bool isProgramMemoryAddress(T *V) {
45   return cast<PointerType>(V->getType())->getAddressSpace() == ProgramMemory;
46 }
47 
isProgramMemoryAccess(MemSDNode const * N)48 inline bool isProgramMemoryAccess(MemSDNode const *N) {
49   auto V = N->getMemOperand()->getValue();
50 
51   return (V != nullptr) ? isProgramMemoryAddress(V) : false;
52 }
53 
54 } // end of namespace AVR
55 
56 } // end namespace llvm
57 
58 #endif // LLVM_AVR_H
59