xref: /freebsd/contrib/llvm-project/llvm/lib/Target/AVR/AVR.h (revision 963f5dc7a30624e95d72fb7f87b8892651164e46)
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 Pass *createAVRShiftExpandPass();
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 initializeAVRShiftExpandPass(PassRegistry &);
35 void initializeAVRExpandPseudoPass(PassRegistry&);
36 void initializeAVRRelaxMemPass(PassRegistry&);
37 
38 /// Contains the AVR backend.
39 namespace AVR {
40 
41 /// An integer that identifies all of the supported AVR address spaces.
42 enum AddressSpace { DataMemory, ProgramMemory };
43 
44 /// Checks if a given type is a pointer to program memory.
45 template <typename T> bool isProgramMemoryAddress(T *V) {
46   return cast<PointerType>(V->getType())->getAddressSpace() == ProgramMemory;
47 }
48 
49 inline bool isProgramMemoryAccess(MemSDNode const *N) {
50   auto V = N->getMemOperand()->getValue();
51 
52   return (V != nullptr) ? isProgramMemoryAddress(V) : false;
53 }
54 
55 } // end of namespace AVR
56 
57 } // end namespace llvm
58 
59 #endif // LLVM_AVR_H
60