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 #include <optional> 20 21 namespace llvm { 22 23 class CSKYTargetMachine : public LLVMTargetMachine { 24 std::unique_ptr<TargetLoweringObjectFile> TLOF; 25 mutable StringMap<std::unique_ptr<CSKYSubtarget>> SubtargetMap; 26 27 public: 28 CSKYTargetMachine(const Target &T, const Triple &TT, StringRef CPU, 29 StringRef FS, const TargetOptions &Options, 30 std::optional<Reloc::Model> RM, 31 std::optional<CodeModel::Model> CM, CodeGenOptLevel OL, 32 bool JIT); 33 34 TargetPassConfig *createPassConfig(PassManagerBase &PM) override; 35 36 const CSKYSubtarget *getSubtargetImpl(const Function &F) const override; 37 // DO NOT IMPLEMENT: There is no such thing as a valid default subtarget, 38 // subtargets are per-function entities based on the target-specific 39 // attributes of each function. 40 const CSKYSubtarget *getSubtargetImpl() const = delete; 41 42 TargetLoweringObjectFile *getObjFileLowering() const override { 43 return TLOF.get(); 44 } 45 46 MachineFunctionInfo * 47 createMachineFunctionInfo(BumpPtrAllocator &Allocator, const Function &F, 48 const TargetSubtargetInfo *STI) const override; 49 }; 50 } // namespace llvm 51 52 #endif 53