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342fca5b08
Errata fixes for various errata in different versions of the Leon variants of the Sparc 32 bit processor. The nature of the errata are listed in the comments preceding the errata fix passes. Relevant unit tests are implemented for each of these. Note: Running clang-format has changed a few other lines too, unrelated to the implemented errata fixes. These have been left in as this keeps the code formatting consistent. Differential Revision: http://reviews.llvm.org/D21960 llvm-svn: 274856
135 lines
4.4 KiB
C++
135 lines
4.4 KiB
C++
//===-- SparcSubtarget.h - Define Subtarget for the SPARC -------*- 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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// This file declares the SPARC specific subclass of TargetSubtargetInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
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#define LLVM_LIB_TARGET_SPARC_SPARCSUBTARGET_H
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#include "SparcFrameLowering.h"
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#include "SparcISelLowering.h"
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#include "SparcInstrInfo.h"
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#include "llvm/CodeGen/SelectionDAGTargetInfo.h"
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#include "llvm/IR/DataLayout.h"
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#include "llvm/Target/TargetFrameLowering.h"
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#include "llvm/Target/TargetSubtargetInfo.h"
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#include <string>
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#define GET_SUBTARGETINFO_HEADER
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#include "SparcGenSubtargetInfo.inc"
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namespace llvm {
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class StringRef;
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class SparcSubtarget : public SparcGenSubtargetInfo {
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Triple TargetTriple;
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virtual void anchor();
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bool IsV9;
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bool IsLeon;
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bool V8DeprecatedInsts;
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bool IsVIS, IsVIS2, IsVIS3;
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bool Is64Bit;
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bool HasHardQuad;
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bool UsePopc;
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bool UseSoftFloat;
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// LEON features
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bool HasUmacSmac;
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bool HasLeonCasa;
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bool InsertNOPLoad;
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bool FixFSMULD;
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bool ReplaceFMULS;
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bool FixAllFDIVSQRT;
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bool UseSoftFpu;
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bool PerformSDIVReplace;
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bool FixCallImmediates;
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bool IgnoreZeroFlag;
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bool InsertNOPDoublePrecision;
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bool PreventRoundChange;
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bool FlushCacheLineSWAP;
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bool InsertNOPsLoadStore;
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SparcInstrInfo InstrInfo;
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SparcTargetLowering TLInfo;
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SelectionDAGTargetInfo TSInfo;
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SparcFrameLowering FrameLowering;
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public:
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SparcSubtarget(const Triple &TT, const std::string &CPU,
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const std::string &FS, const TargetMachine &TM, bool is64bit);
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const SparcInstrInfo *getInstrInfo() const override { return &InstrInfo; }
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const TargetFrameLowering *getFrameLowering() const override {
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return &FrameLowering;
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}
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const SparcRegisterInfo *getRegisterInfo() const override {
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return &InstrInfo.getRegisterInfo();
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}
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const SparcTargetLowering *getTargetLowering() const override {
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return &TLInfo;
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}
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const SelectionDAGTargetInfo *getSelectionDAGInfo() const override {
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return &TSInfo;
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}
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bool enableMachineScheduler() const override;
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bool isV9() const { return IsV9; }
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bool isLeon() const { return IsLeon; }
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bool isVIS() const { return IsVIS; }
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bool isVIS2() const { return IsVIS2; }
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bool isVIS3() const { return IsVIS3; }
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bool useDeprecatedV8Instructions() const { return V8DeprecatedInsts; }
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bool hasHardQuad() const { return HasHardQuad; }
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bool usePopc() const { return UsePopc; }
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bool useSoftFloat() const { return UseSoftFloat; }
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// Leon options
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bool useSoftFpu() const { return UseSoftFpu; }
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bool hasLeonCasa() const { return HasLeonCasa; }
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bool hasUmacSmac() const { return HasUmacSmac; }
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bool performSDIVReplace() const { return PerformSDIVReplace; }
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bool fixCallImmediates() const { return FixCallImmediates; }
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bool ignoreZeroFlag() const { return IgnoreZeroFlag; }
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bool insertNOPDoublePrecision() const { return InsertNOPDoublePrecision; }
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bool fixFSMULD() const { return FixFSMULD; }
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bool replaceFMULS() const { return ReplaceFMULS; }
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bool preventRoundChange() const { return PreventRoundChange; }
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bool fixAllFDIVSQRT() const { return FixAllFDIVSQRT; }
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bool flushCacheLineSWAP() const { return FlushCacheLineSWAP; }
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bool insertNOPsLoadStore() const { return InsertNOPsLoadStore; }
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bool insertNOPLoad() const { return InsertNOPLoad; }
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/// ParseSubtargetFeatures - Parses features string setting specified
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/// subtarget options. Definition of function is auto generated by tblgen.
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void ParseSubtargetFeatures(StringRef CPU, StringRef FS);
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SparcSubtarget &initializeSubtargetDependencies(StringRef CPU, StringRef FS);
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bool is64Bit() const { return Is64Bit; }
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/// The 64-bit ABI uses biased stack and frame pointers, so the stack frame
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/// of the current function is the area from [%sp+BIAS] to [%fp+BIAS].
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int64_t getStackPointerBias() const {
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return is64Bit() ? 2047 : 0;
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}
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/// Given a actual stack size as determined by FrameInfo, this function
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/// returns adjusted framesize which includes space for register window
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/// spills and arguments.
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int getAdjustedFrameSize(int stackSize) const;
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bool isTargetLinux() const { return TargetTriple.isOSLinux(); }
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};
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} // end namespace llvm
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#endif
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