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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
//=- WebAssemblySubtarget.h - Define Subtarget for the WebAssembly -*- C++ -*-//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// This file declares the WebAssembly-specific subclass of
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/// TargetSubtarget.
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYSUBTARGET_H
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#define LLVM_LIB_TARGET_WEBASSEMBLY_WEBASSEMBLYSUBTARGET_H
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#include "WebAssemblyFrameLowering.h"
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#include "WebAssemblyISelLowering.h"
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#include "WebAssemblyInstrInfo.h"
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#include "WebAssemblySelectionDAGInfo.h"
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#include "llvm/CodeGen/TargetSubtargetInfo.h"
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#include <string>
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#define GET_SUBTARGETINFO_HEADER
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#include "WebAssemblyGenSubtargetInfo.inc"
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namespace llvm {
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class WebAssemblySubtarget final : public WebAssemblyGenSubtargetInfo {
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enum SIMDEnum {
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NoSIMD,
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SIMD128,
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UnimplementedSIMD128,
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} SIMDLevel = NoSIMD;
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bool HasAtomics = false;
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bool HasNontrappingFPToInt = false;
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bool HasSignExt = false;
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bool HasExceptionHandling = false;
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/// String name of used CPU.
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std::string CPUString;
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/// What processor and OS we're targeting.
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Triple TargetTriple;
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WebAssemblyFrameLowering FrameLowering;
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WebAssemblyInstrInfo InstrInfo;
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WebAssemblySelectionDAGInfo TSInfo;
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WebAssemblyTargetLowering TLInfo;
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/// Initializes using CPUString and the passed in feature string so that we
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/// can use initializer lists for subtarget initialization.
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WebAssemblySubtarget &initializeSubtargetDependencies(StringRef FS);
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public:
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/// This constructor initializes the data members to match that
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/// of the specified triple.
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WebAssemblySubtarget(const Triple &TT, const std::string &CPU,
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const std::string &FS, const TargetMachine &TM);
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const WebAssemblySelectionDAGInfo *getSelectionDAGInfo() const override {
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return &TSInfo;
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}
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const WebAssemblyFrameLowering *getFrameLowering() const override {
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return &FrameLowering;
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}
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const WebAssemblyTargetLowering *getTargetLowering() const override {
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return &TLInfo;
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}
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const WebAssemblyInstrInfo *getInstrInfo() const override {
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return &InstrInfo;
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}
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const WebAssemblyRegisterInfo *getRegisterInfo() const override {
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return &getInstrInfo()->getRegisterInfo();
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}
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const Triple &getTargetTriple() const { return TargetTriple; }
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bool enableMachineScheduler() const override;
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bool useAA() const override;
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// Predicates used by WebAssemblyInstrInfo.td.
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bool hasAddr64() const { return TargetTriple.isArch64Bit(); }
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bool hasSIMD128() const { return SIMDLevel >= SIMD128; }
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bool hasUnimplementedSIMD128() const {
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return SIMDLevel >= UnimplementedSIMD128;
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}
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bool hasAtomics() const { return HasAtomics; }
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bool hasNontrappingFPToInt() const { return HasNontrappingFPToInt; }
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bool hasSignExt() const { return HasSignExt; }
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bool hasExceptionHandling() const { return HasExceptionHandling; }
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/// Parses features string setting specified subtarget options. Definition of
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/// function is auto generated by tblgen.
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void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
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};
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} // end namespace llvm
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#endif
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