-//===- X86RegisterInfo.h - X86 Register Information Impl ----------*-C++-*-===//
+//===- X86RegisterInfo.h - X86 Register Information Impl --------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
//
// This file contains the X86 implementation of the MRegisterInfo class.
//
#include "llvm/Target/MRegisterInfo.h"
-class Type;
+class llvm::Type;
-struct X86RegisterInfo : public MRegisterInfo {
- X86RegisterInfo();
+#include "X86GenRegisterInfo.h.inc"
- MRegisterInfo::const_iterator const_regclass_begin() const;
- MRegisterInfo::const_iterator const_regclass_end() const;
+namespace llvm {
- MachineBasicBlock::iterator
- storeReg2RegOffset(MachineBasicBlock *MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned DestReg, unsigned SrcReg,
- unsigned ImmOffset, unsigned dataSize) const;
+struct X86RegisterInfo : public X86GenRegisterInfo {
+ X86RegisterInfo();
+ const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
- MachineBasicBlock::iterator
- loadRegOffset2Reg(MachineBasicBlock *MBB,
- MachineBasicBlock::iterator MBBI,
+ /// Code Generation virtual methods...
+ void storeRegToStackSlot(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ unsigned SrcReg, int FrameIndex) const;
+
+ void loadRegFromStackSlot(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
+ unsigned DestReg, int FrameIndex) const;
+
+ void copyRegToReg(MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI,
unsigned DestReg, unsigned SrcReg,
- unsigned ImmOffset, unsigned dataSize) const;
+ const TargetRegisterClass *RC) const;
- unsigned getFramePointer() const;
- unsigned getStackPointer() const;
+ /// foldMemoryOperand - If this target supports it, fold a load or store of
+ /// the specified stack slot into the specified machine instruction for the
+ /// specified operand. If this is possible, the target should perform the
+ /// folding and return true, otherwise it should return false. If it folds
+ /// the instruction, it is likely that the MachineInstruction the iterator
+ /// references has been changed.
+ virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
+ unsigned OpNum,
+ int FrameIndex) const;
- const unsigned* getCalleeSaveRegs() const;
- const unsigned* getCallerSaveRegs() const;
- MachineBasicBlock::iterator emitPrologue(MachineBasicBlock *MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned numBytes) const;
+ void eliminateCallFramePseudoInstr(MachineFunction &MF,
+ MachineBasicBlock &MBB,
+ MachineBasicBlock::iterator MI) const;
- MachineBasicBlock::iterator emitEpilogue(MachineBasicBlock *MBB,
- MachineBasicBlock::iterator MBBI,
- unsigned numBytes) const;
+ void eliminateFrameIndex(MachineBasicBlock::iterator MI) const;
- /// Returns register class appropriate for input SSA register
- ///
- const TargetRegisterClass *getClassForReg(unsigned Reg) const;
-
- const TargetRegisterClass* getRegClassForType(const Type* Ty) const;
-
- unsigned getNumRegClasses() const;
+ void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
+ void emitPrologue(MachineFunction &MF) const;
+ void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
};
+} // End llvm namespace
+
#endif