1 //===-- SPIRVTargetMachine.h - Define TargetMachine for SPIR-V -*- 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 SPIR-V specific subclass of TargetMachine.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_SPIRV_SPIRVTARGETMACHINE_H
14 #define LLVM_LIB_TARGET_SPIRV_SPIRVTARGETMACHINE_H
15 
16 #include "SPIRVSubtarget.h"
17 #include "llvm/Target/TargetMachine.h"
18 #include <optional>
19 
20 namespace llvm {
21 class SPIRVTargetMachine : public LLVMTargetMachine {
22   std::unique_ptr<TargetLoweringObjectFile> TLOF;
23   SPIRVSubtarget Subtarget;
24 
25 public:
26   SPIRVTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
27                      StringRef FS, const TargetOptions &Options,
28                      std::optional<Reloc::Model> RM,
29                      std::optional<CodeModel::Model> CM, CodeGenOpt::Level OL,
30                      bool JIT);
31 
32   const SPIRVSubtarget *getSubtargetImpl() const { return &Subtarget; }
33 
34   const SPIRVSubtarget *getSubtargetImpl(const Function &) const override {
35     return &Subtarget;
36   }
37 
38   TargetTransformInfo getTargetTransformInfo(const Function &F) const override;
39 
40   TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
41   bool usesPhysRegsForValues() const override { return false; }
42 
43   TargetLoweringObjectFile *getObjFileLowering() const override {
44     return TLOF.get();
45   }
46 };
47 } // namespace llvm
48 
49 #endif // LLVM_LIB_TARGET_SPIRV_SPIRVTARGETMACHINE_H
50