1//===-- PPCTargetMachine.h - Define TargetMachine for PowerPC ---*- 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 declares the PowerPC specific subclass of TargetMachine.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
14#define LLVM_LIB_TARGET_POWERPC_PPCTARGETMACHINE_H
15
16#include "PPCInstrInfo.h"
17#include "PPCSubtarget.h"
18#include "llvm/IR/DataLayout.h"
19#include "llvm/Target/TargetMachine.h"
20
21namespace llvm {
22
23/// Common code between 32-bit and 64-bit PowerPC targets.
24///
25class PPCTargetMachine final : public LLVMTargetMachine {
26public:
27  enum PPCABI { PPC_ABI_UNKNOWN, PPC_ABI_ELFv1, PPC_ABI_ELFv2 };
28private:
29  std::unique_ptr<TargetLoweringObjectFile> TLOF;
30  PPCABI TargetABI;
31
32  mutable StringMap<std::unique_ptr<PPCSubtarget>> SubtargetMap;
33
34public:
35  PPCTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
36                   StringRef FS, const TargetOptions &Options,
37                   Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
38                   CodeGenOpt::Level OL, bool JIT);
39
40  ~PPCTargetMachine() override;
41
42  const PPCSubtarget *getSubtargetImpl(const Function &F) const override;
43  // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget,
44  // subtargets are per-function entities based on the target-specific
45  // attributes of each function.
46  const PPCSubtarget *getSubtargetImpl() const = delete;
47
48  // Pass Pipeline Configuration
49  TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
50
51  TargetTransformInfo getTargetTransformInfo(const Function &F) override;
52
53  TargetLoweringObjectFile *getObjFileLowering() const override {
54    return TLOF.get();
55  }
56  bool isELFv2ABI() const { return TargetABI == PPC_ABI_ELFv2; }
57  bool isPPC64() const {
58    const Triple &TT = getTargetTriple();
59    return (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le);
60  };
61};
62} // end namespace llvm
63
64#endif
65