#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>
/// 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;
/// 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;
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;
- };
+ /// 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.
- std::vector<Forward> ForwardedMustTailRegParms;
+ SmallVector<ForwardedRegister, 1> ForwardedMustTailRegParms;
public:
X86MachineFunctionInfo() : ForceFramePointer(false),
+ RestoreBasePointerOffset(0),
CalleeSavedFrameSize(0),
BytesToPopOnReturn(0),
ReturnAddrIndex(0),
+ FrameAddrIndex(0),
TailCallReturnAddrDelta(0),
SRetReturnReg(0),
GlobalBaseReg(0),
VarArgsGPOffset(0),
VarArgsFPOffset(0),
ArgumentStackSize(0),
- NumLocalDynamics(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),
VarArgsGPOffset(0),
VarArgsFPOffset(0),
ArgumentStackSize(0),
- NumLocalDynamics(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 getNumLocalDynamicTLSAccesses() const { return NumLocalDynamics; }
void incNumLocalDynamicTLSAccesses() { ++NumLocalDynamics; }
- std::vector<Forward> &getForwardedMustTailRegParms() {
+ SmallVectorImpl<ForwardedRegister> &getForwardedMustTailRegParms() {
return ForwardedMustTailRegParms;
}
};