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f785676f2a
all of the features in the current working draft of the upcoming C++ standard, provisionally named C++1y. The code generator's performance is greatly increased, and the loop auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The PowerPC backend has made several major improvements to code generation quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ backends have all seen major feature work. Release notes for llvm and clang can be found here: <http://llvm.org/releases/3.4/docs/ReleaseNotes.html> <http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html> MFC after: 1 month
136 lines
4.4 KiB
C++
136 lines
4.4 KiB
C++
//===-- MipsMachineFunctionInfo.h - Private data used for Mips ----*- 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 Mips specific subclass of MachineFunctionInfo.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MIPS_MACHINE_FUNCTION_INFO_H
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#define MIPS_MACHINE_FUNCTION_INFO_H
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#include "MipsSubtarget.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/ValueMap.h"
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#include "llvm/CodeGen/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineMemOperand.h"
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#include "llvm/CodeGen/PseudoSourceValue.h"
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#include "llvm/IR/GlobalValue.h"
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#include "llvm/Target/TargetFrameLowering.h"
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#include "llvm/Target/TargetMachine.h"
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#include <utility>
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namespace llvm {
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/// \brief A class derived from PseudoSourceValue that represents a GOT entry
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/// resolved by lazy-binding.
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class MipsCallEntry : public PseudoSourceValue {
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public:
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explicit MipsCallEntry(const StringRef &N);
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explicit MipsCallEntry(const GlobalValue *V);
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virtual bool isConstant(const MachineFrameInfo *) const;
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virtual bool isAliased(const MachineFrameInfo *) const;
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virtual bool mayAlias(const MachineFrameInfo *) const;
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private:
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virtual void printCustom(raw_ostream &O) const;
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#ifndef NDEBUG
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std::string Name;
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const GlobalValue *Val;
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#endif
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};
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/// MipsFunctionInfo - This class is derived from MachineFunction private
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/// Mips target-specific information for each MachineFunction.
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class MipsFunctionInfo : public MachineFunctionInfo {
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public:
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MipsFunctionInfo(MachineFunction& MF)
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: MF(MF), SRetReturnReg(0), GlobalBaseReg(0), Mips16SPAliasReg(0),
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VarArgsFrameIndex(0), CallsEhReturn(false)
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{}
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~MipsFunctionInfo();
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unsigned getSRetReturnReg() const { return SRetReturnReg; }
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void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
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bool globalBaseRegSet() const;
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unsigned getGlobalBaseReg();
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bool mips16SPAliasRegSet() const;
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unsigned getMips16SPAliasReg();
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int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
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void setVarArgsFrameIndex(int Index) { VarArgsFrameIndex = Index; }
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bool hasByvalArg() const { return HasByvalArg; }
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void setFormalArgInfo(unsigned Size, bool HasByval) {
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IncomingArgSize = Size;
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HasByvalArg = HasByval;
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}
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unsigned getIncomingArgSize() const { return IncomingArgSize; }
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bool callsEhReturn() const { return CallsEhReturn; }
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void setCallsEhReturn() { CallsEhReturn = true; }
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void createEhDataRegsFI();
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int getEhDataRegFI(unsigned Reg) const { return EhDataRegFI[Reg]; }
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bool isEhDataRegFI(int FI) const;
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/// \brief Create a MachinePointerInfo that has a MipsCallEntr object
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/// representing a GOT entry for an external function.
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MachinePointerInfo callPtrInfo(const StringRef &Name);
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/// \brief Create a MachinePointerInfo that has a MipsCallEntr object
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/// representing a GOT entry for a global function.
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MachinePointerInfo callPtrInfo(const GlobalValue *Val);
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private:
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virtual void anchor();
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MachineFunction& MF;
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/// SRetReturnReg - Some subtargets require that sret lowering includes
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/// returning the value of the returned struct in a register. This field
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/// holds the virtual register into which the sret argument is passed.
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unsigned SRetReturnReg;
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/// GlobalBaseReg - keeps track of the virtual register initialized for
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/// use as the global base register. This is used for PIC in some PIC
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/// relocation models.
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unsigned GlobalBaseReg;
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/// Mips16SPAliasReg - keeps track of the virtual register initialized for
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/// use as an alias for SP for use in load/store of halfword/byte from/to
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/// the stack
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unsigned Mips16SPAliasReg;
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/// VarArgsFrameIndex - FrameIndex for start of varargs area.
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int VarArgsFrameIndex;
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/// True if function has a byval argument.
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bool HasByvalArg;
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/// Size of incoming argument area.
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unsigned IncomingArgSize;
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/// CallsEhReturn - Whether the function calls llvm.eh.return.
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bool CallsEhReturn;
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/// Frame objects for spilling eh data registers.
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int EhDataRegFI[4];
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/// MipsCallEntry maps.
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StringMap<const MipsCallEntry *> ExternalCallEntries;
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ValueMap<const GlobalValue *, const MipsCallEntry *> GlobalCallEntries;
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};
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} // end of namespace llvm
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#endif // MIPS_MACHINE_FUNCTION_INFO_H
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