1 //===--- CSKYTargetMachine.h - Define TargetMachine for CSKY ----*- 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 CSKY specific subclass of TargetMachine.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_CSKY_CSKYTARGETMACHINE_H
14 #define LLVM_LIB_TARGET_CSKY_CSKYTARGETMACHINE_H
15 
16 #include "CSKYSubtarget.h"
17 #include "llvm/IR/DataLayout.h"
18 #include "llvm/Target/TargetMachine.h"
19 
20 namespace llvm {
21 
22 class CSKYTargetMachine : public LLVMTargetMachine {
23   std::unique_ptr<TargetLoweringObjectFile> TLOF;
24   mutable StringMap<std::unique_ptr<CSKYSubtarget>> SubtargetMap;
25 
26 public:
27   CSKYTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
28                     StringRef FS, const TargetOptions &Options,
29                     Optional<Reloc::Model> RM, Optional<CodeModel::Model> CM,
30                     CodeGenOpt::Level OL, bool JIT);
31 
32   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
33 
34   const CSKYSubtarget *getSubtargetImpl(const Function &F) const override;
35   // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget,
36   // subtargets are per-function entities based on the target-specific
37   // attributes of each function.
38   const CSKYSubtarget *getSubtargetImpl() const = delete;
39 
40   TargetLoweringObjectFile *getObjFileLowering() const override {
41     return TLOF.get();
42   }
43 };
44 } // namespace llvm
45 
46 #endif
47