-//====- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
-//
+//===-- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
+//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
-//
+//
//===----------------------------------------------------------------------===//
//
// This file declares X86-specific per-machine-function information.
//
//===----------------------------------------------------------------------===//
-#ifndef X86MACHINEFUNCTIONINFO_H
-#define X86MACHINEFUNCTIONINFO_H
+#ifndef LLVM_LIB_TARGET_X86_X86MACHINEFUNCTIONINFO_H
+#define LLVM_LIB_TARGET_X86_X86MACHINEFUNCTIONINFO_H
+#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineValueType.h"
+#include <vector>
namespace llvm {
/// X86MachineFunctionInfo - This class is derived from MachineFunction and
/// contains private X86 target-specific information for each MachineFunction.
class X86MachineFunctionInfo : public MachineFunctionInfo {
+ virtual void anchor();
+
/// ForceFramePointer - True if the function is required to use of frame
- /// pointer for reasons other than it containing dynamic allocation or
+ /// pointer for reasons other than it containing dynamic allocation or
/// that FP eliminatation is turned off. For example, Cygwin main function
/// contains stack pointer re-alignment code which requires FP.
bool ForceFramePointer;
+ /// RestoreBasePointerOffset - Non-zero if the function has base pointer
+ /// and makes call to llvm.eh.sjlj.setjmp. When non-zero, the value is a
+ /// displacement from the frame pointer to a slot where the base pointer
+ /// is stashed.
+ signed char RestoreBasePointerOffset;
+
/// CalleeSavedFrameSize - Size of the callee-saved register portion of the
/// stack frame in bytes.
unsigned CalleeSavedFrameSize;
- /// BytesToPopOnReturn - Number of bytes function pops on return.
+ /// BytesToPopOnReturn - Number of bytes function pops on return (in addition
+ /// to the space used by the return address).
/// Used on windows platform for stdcall & fastcall name decoration
unsigned BytesToPopOnReturn;
/// ReturnAddrIndex - FrameIndex for return slot.
int ReturnAddrIndex;
+ /// \brief FrameIndex for return slot.
+ int FrameAddrIndex;
+
/// TailCallReturnAddrDelta - The number of bytes by which return address
/// stack slot is moved as the result of tail call optimization.
int TailCallReturnAddrDelta;
/// relocation models.
unsigned GlobalBaseReg;
+ /// VarArgsFrameIndex - FrameIndex for start of varargs area.
+ int VarArgsFrameIndex;
+ /// RegSaveFrameIndex - X86-64 vararg func register save area.
+ int RegSaveFrameIndex;
+ /// VarArgsGPOffset - X86-64 vararg func int reg offset.
+ unsigned VarArgsGPOffset;
+ /// VarArgsFPOffset - X86-64 vararg func fp reg offset.
+ unsigned VarArgsFPOffset;
+ /// ArgumentStackSize - The number of bytes on stack consumed by the arguments
+ /// being passed on the stack.
+ unsigned ArgumentStackSize;
+ /// NumLocalDynamics - Number of local-dynamic TLS accesses.
+ unsigned NumLocalDynamics;
+ /// HasPushSequences - Keeps track of whether this function uses sequences
+ /// of pushes to pass function parameters.
+ bool HasPushSequences;
+
+private:
+ /// ForwardedMustTailRegParms - A list of virtual and physical registers
+ /// that must be forwarded to every musttail call.
+ SmallVector<ForwardedRegister, 1> ForwardedMustTailRegParms;
+
public:
X86MachineFunctionInfo() : ForceFramePointer(false),
+ RestoreBasePointerOffset(0),
CalleeSavedFrameSize(0),
BytesToPopOnReturn(0),
ReturnAddrIndex(0),
+ FrameAddrIndex(0),
TailCallReturnAddrDelta(0),
SRetReturnReg(0),
- GlobalBaseReg(0) {}
-
+ GlobalBaseReg(0),
+ VarArgsFrameIndex(0),
+ RegSaveFrameIndex(0),
+ VarArgsGPOffset(0),
+ VarArgsFPOffset(0),
+ ArgumentStackSize(0),
+ NumLocalDynamics(0),
+ HasPushSequences(false) {}
+
explicit X86MachineFunctionInfo(MachineFunction &MF)
: ForceFramePointer(false),
+ RestoreBasePointerOffset(0),
CalleeSavedFrameSize(0),
BytesToPopOnReturn(0),
ReturnAddrIndex(0),
+ FrameAddrIndex(0),
TailCallReturnAddrDelta(0),
SRetReturnReg(0),
- GlobalBaseReg(0) {}
-
- bool getForceFramePointer() const { return ForceFramePointer;}
+ GlobalBaseReg(0),
+ VarArgsFrameIndex(0),
+ RegSaveFrameIndex(0),
+ VarArgsGPOffset(0),
+ VarArgsFPOffset(0),
+ ArgumentStackSize(0),
+ NumLocalDynamics(0),
+ HasPushSequences(false) {}
+
+ bool getForceFramePointer() const { return ForceFramePointer;}
void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
+ bool getHasPushSequences() const { return HasPushSequences; }
+ void setHasPushSequences(bool HasPush) { HasPushSequences = HasPush; }
+
+ bool getRestoreBasePointer() const { return RestoreBasePointerOffset!=0; }
+ void setRestoreBasePointer(const MachineFunction *MF);
+ int getRestoreBasePointerOffset() const {return RestoreBasePointerOffset; }
+
unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
int getRAIndex() const { return ReturnAddrIndex; }
void setRAIndex(int Index) { ReturnAddrIndex = Index; }
+ int getFAIndex() const { return FrameAddrIndex; }
+ void setFAIndex(int Index) { FrameAddrIndex = Index; }
+
int getTCReturnAddrDelta() const { return TailCallReturnAddrDelta; }
void setTCReturnAddrDelta(int delta) {TailCallReturnAddrDelta = delta;}
unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
+
+ int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
+ void setVarArgsFrameIndex(int Idx) { VarArgsFrameIndex = Idx; }
+
+ int getRegSaveFrameIndex() const { return RegSaveFrameIndex; }
+ void setRegSaveFrameIndex(int Idx) { RegSaveFrameIndex = Idx; }
+
+ unsigned getVarArgsGPOffset() const { return VarArgsGPOffset; }
+ void setVarArgsGPOffset(unsigned Offset) { VarArgsGPOffset = Offset; }
+
+ unsigned getVarArgsFPOffset() const { return VarArgsFPOffset; }
+ void setVarArgsFPOffset(unsigned Offset) { VarArgsFPOffset = Offset; }
+
+ unsigned getArgumentStackSize() const { return ArgumentStackSize; }
+ void setArgumentStackSize(unsigned size) { ArgumentStackSize = size; }
+
+ unsigned getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
+ void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
+
+ SmallVectorImpl<ForwardedRegister> &getForwardedMustTailRegParms() {
+ return ForwardedMustTailRegParms;
+ }
};
} // End llvm namespace
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