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da52f0e643
As we introduced target triple environment amdgiz and amdgizcl, the address space values are no longer enums. We have to decide the value by target triple. The basic idea is to use struct AMDGPUAS to represent address space values. For address space values which are not depend on target triple, use static const members, so that they don't occupy extra memory space and is equivalent to a compile time constant. Since the struct is lightweight and cheap, it can be created on the fly at the point of usage. Or it can be added as member to a pass and created at the beginning of the run* function. Differential Revision: https://reviews.llvm.org/D31284 llvm-svn: 298846
116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
//===-- AMDGPUTargetMachine.h - AMDGPU TargetMachine Interface --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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/// \file
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/// \brief The AMDGPU TargetMachine interface definition for hw codgen targets.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H
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#define LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H
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#include "AMDGPUIntrinsicInfo.h"
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#include "AMDGPUSubtarget.h"
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#include "llvm/ADT/Optional.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Analysis/TargetTransformInfo.h"
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#include "llvm/Support/CodeGen.h"
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#include "llvm/Target/TargetMachine.h"
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#include <memory>
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namespace llvm {
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//===----------------------------------------------------------------------===//
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// AMDGPU Target Machine (R600+)
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//===----------------------------------------------------------------------===//
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class AMDGPUTargetMachine : public LLVMTargetMachine {
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protected:
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std::unique_ptr<TargetLoweringObjectFile> TLOF;
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AMDGPUIntrinsicInfo IntrinsicInfo;
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AMDGPUAS AS;
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StringRef getGPUName(const Function &F) const;
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StringRef getFeatureString(const Function &F) const;
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public:
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AMDGPUTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
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StringRef FS, TargetOptions Options,
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Optional<Reloc::Model> RM, CodeModel::Model CM,
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CodeGenOpt::Level OL);
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~AMDGPUTargetMachine() override;
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const AMDGPUSubtarget *getSubtargetImpl() const;
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const AMDGPUSubtarget *getSubtargetImpl(const Function &) const override = 0;
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const AMDGPUIntrinsicInfo *getIntrinsicInfo() const override {
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return &IntrinsicInfo;
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}
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TargetIRAnalysis getTargetIRAnalysis() override;
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TargetLoweringObjectFile *getObjFileLowering() const override {
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return TLOF.get();
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}
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AMDGPUAS getAMDGPUAS() const {
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return AS;
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}
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void adjustPassManager(PassManagerBuilder &) override;
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/// Get the integer value of a null pointer in the given address space.
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uint64_t getNullPointerValue(unsigned AddrSpace) const {
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if (AddrSpace == AS.LOCAL_ADDRESS || AddrSpace == AS.REGION_ADDRESS)
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return -1;
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return 0;
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}
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};
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//===----------------------------------------------------------------------===//
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// R600 Target Machine (R600 -> Cayman)
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//===----------------------------------------------------------------------===//
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class R600TargetMachine final : public AMDGPUTargetMachine {
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private:
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mutable StringMap<std::unique_ptr<R600Subtarget>> SubtargetMap;
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public:
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R600TargetMachine(const Target &T, const Triple &TT, StringRef CPU,
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StringRef FS, TargetOptions Options,
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Optional<Reloc::Model> RM, CodeModel::Model CM,
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CodeGenOpt::Level OL);
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TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
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const R600Subtarget *getSubtargetImpl(const Function &) const override;
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};
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//===----------------------------------------------------------------------===//
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// GCN Target Machine (SI+)
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//===----------------------------------------------------------------------===//
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class GCNTargetMachine final : public AMDGPUTargetMachine {
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private:
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mutable StringMap<std::unique_ptr<SISubtarget>> SubtargetMap;
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public:
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GCNTargetMachine(const Target &T, const Triple &TT, StringRef CPU,
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StringRef FS, TargetOptions Options,
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Optional<Reloc::Model> RM, CodeModel::Model CM,
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CodeGenOpt::Level OL);
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TargetPassConfig *createPassConfig(PassManagerBase &PM) override;
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const SISubtarget *getSubtargetImpl(const Function &) const override;
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETMACHINE_H
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