-//====- 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/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;
/// relocation models.
unsigned GlobalBaseReg;
- /// ReserveFP - whether the function should reserve the frame pointer
- /// when allocating, even if there may not actually be a frame pointer used.
- bool ReserveFP;
-
/// VarArgsFrameIndex - FrameIndex for start of varargs area.
int VarArgsFrameIndex;
/// RegSaveFrameIndex - X86-64 vararg func register save area.
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;
+
+public:
+ /// Describes a register that needs to be forwarded from the prologue to a
+ /// musttail call.
+ struct Forward {
+ Forward(unsigned VReg, MCPhysReg PReg, MVT VT)
+ : VReg(VReg), PReg(PReg), VT(VT) {}
+ unsigned VReg;
+ MCPhysReg PReg;
+ MVT VT;
+ };
+
+private:
+ /// ForwardedMustTailRegParms - A list of virtual and physical registers
+ /// that must be forwarded to every musttail call.
+ std::vector<Forward> ForwardedMustTailRegParms;
public:
X86MachineFunctionInfo() : ForceFramePointer(false),
VarArgsFrameIndex(0),
RegSaveFrameIndex(0),
VarArgsGPOffset(0),
- VarArgsFPOffset(0) {}
-
+ VarArgsFPOffset(0),
+ ArgumentStackSize(0),
+ NumLocalDynamics(0) {}
+
explicit X86MachineFunctionInfo(MachineFunction &MF)
: ForceFramePointer(false),
CalleeSavedFrameSize(0),
TailCallReturnAddrDelta(0),
SRetReturnReg(0),
GlobalBaseReg(0),
- ReserveFP(false),
VarArgsFrameIndex(0),
RegSaveFrameIndex(0),
VarArgsGPOffset(0),
- VarArgsFPOffset(0) {}
-
- bool getForceFramePointer() const { return ForceFramePointer;}
+ VarArgsFPOffset(0),
+ ArgumentStackSize(0),
+ NumLocalDynamics(0) {}
+
+ bool getForceFramePointer() const { return ForceFramePointer;}
void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
unsigned getGlobalBaseReg() const { return GlobalBaseReg; }
void setGlobalBaseReg(unsigned Reg) { GlobalBaseReg = Reg; }
- bool getReserveFP() const { return ReserveFP; }
- void setReserveFP(bool reserveFP) { ReserveFP = reserveFP; }
-
int getVarArgsFrameIndex() const { return VarArgsFrameIndex; }
void setVarArgsFrameIndex(int Idx) { VarArgsFrameIndex = Idx; }
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; }
+
+ std::vector<Forward> &getForwardedMustTailRegParms() {
+ return ForwardedMustTailRegParms;
+ }
};
} // End llvm namespace