1 //===-- PPCTargetMachine.h - Define TargetMachine for PowerPC ---*- 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 declares the PowerPC specific subclass of TargetMachine.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
15 #define LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
16 
17 #include "PPCInstrInfo.h"
18 #include "PPCSubtarget.h"
19 #include "llvm/IR/DataLayout.h"
20 #include "llvm/Target/TargetMachine.h"
21 
22 namespace llvm {
23 
24 /// PPCTargetMachine - Common code between 32-bit and 64-bit PowerPC targets.
25 ///
26 class PPCTargetMachine : public LLVMTargetMachine {
27 public:
28   enum PPCABI { PPC_ABI_UNKNOWN, PPC_ABI_ELFv1, PPC_ABI_ELFv2 };
29 private:
30   std::unique_ptr<TargetLoweringObjectFile> TLOF;
31   PPCABI TargetABI;
32   mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap;
33 
34 public:
35   PPCTargetMachine(const Target &T, StringRef TT, StringRef CPU, StringRef FS,
36                    const TargetOptions &Options, Reloc::Model RM,
37                    CodeModel::Model CM, CodeGenOpt::Level OL);
38 
39   ~PPCTargetMachine() override;
40 
41   const PPCSubtarget *getSubtargetImpl(const Function &F) const override;
42 
43   // Pass Pipeline Configuration
44   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
45 
46   TargetIRAnalysis getTargetIRAnalysis() override;
47 
getObjFileLowering()48   TargetLoweringObjectFile *getObjFileLowering() const override {
49     return TLOF.get();
50   }
isELFv2ABI()51   bool isELFv2ABI() const { return TargetABI == PPC_ABI_ELFv2; }
isPPC64()52   bool isPPC64() const {
53     Triple TT(getTargetTriple());
54     return (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le);
55   };
56 };
57 
58 /// PPC32TargetMachine - PowerPC 32-bit target machine.
59 ///
60 class PPC32TargetMachine : public PPCTargetMachine {
61   virtual void anchor();
62 public:
63   PPC32TargetMachine(const Target &T, StringRef TT,
64                      StringRef CPU, StringRef FS, const TargetOptions &Options,
65                      Reloc::Model RM, CodeModel::Model CM,
66                      CodeGenOpt::Level OL);
67 };
68 
69 /// PPC64TargetMachine - PowerPC 64-bit target machine.
70 ///
71 class PPC64TargetMachine : public PPCTargetMachine {
72   virtual void anchor();
73 public:
74   PPC64TargetMachine(const Target &T, StringRef TT,
75                      StringRef CPU, StringRef FS, const TargetOptions &Options,
76                      Reloc::Model RM, CodeModel::Model CM,
77                      CodeGenOpt::Level OL);
78 };
79 
80 } // end namespace llvm
81 
82 #endif
83