-//====- 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 {
-enum NameDecorationStyle {
- None,
- StdCall,
- FastCall
-};
-
-/// X86MachineFunctionInfo - This class is derived from MachineFunction private
-/// X86 target-specific information for each MachineFunction.
+/// 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;
/// 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;
- /// DecorationStyle - If the function requires additional name decoration,
- /// DecorationStyle holds the right way to do so.
- NameDecorationStyle DecorationStyle;
-
/// ReturnAddrIndex - FrameIndex for return slot.
int ReturnAddrIndex;
- /// TailCallReturnAddrDelta - Delta the ReturnAddr stack slot is moved
- /// Used for creating an area before the register spill area on the stack
- /// the returnaddr can be savely move to this area
+ /// TailCallReturnAddrDelta - The number of bytes by which return address
+ /// stack slot is moved as the result of tail call optimization.
int TailCallReturnAddrDelta;
/// SRetReturnReg - Some subtargets require that sret lowering includes
/// 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;
+
+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),
CalleeSavedFrameSize(0),
BytesToPopOnReturn(0),
- DecorationStyle(None),
ReturnAddrIndex(0),
TailCallReturnAddrDelta(0),
SRetReturnReg(0),
- GlobalBaseReg(0) {}
-
- X86MachineFunctionInfo(MachineFunction &MF) : ForceFramePointer(false),
- CalleeSavedFrameSize(0),
- BytesToPopOnReturn(0),
- DecorationStyle(None),
- ReturnAddrIndex(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) {}
+
+ explicit X86MachineFunctionInfo(MachineFunction &MF)
+ : ForceFramePointer(false),
+ CalleeSavedFrameSize(0),
+ BytesToPopOnReturn(0),
+ ReturnAddrIndex(0),
+ TailCallReturnAddrDelta(0),
+ SRetReturnReg(0),
+ GlobalBaseReg(0),
+ VarArgsFrameIndex(0),
+ RegSaveFrameIndex(0),
+ VarArgsGPOffset(0),
+ VarArgsFPOffset(0),
+ ArgumentStackSize(0),
+ NumLocalDynamics(0) {}
+
+ bool getForceFramePointer() const { return ForceFramePointer;}
void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
unsigned getCalleeSavedFrameSize() const { return CalleeSavedFrameSize; }
unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; }
void setBytesToPopOnReturn (unsigned bytes) { BytesToPopOnReturn = bytes;}
- NameDecorationStyle getDecorationStyle() const { return DecorationStyle; }
- void setDecorationStyle(NameDecorationStyle style) { DecorationStyle = style;}
-
int getRAIndex() const { return ReturnAddrIndex; }
void setRAIndex(int Index) { ReturnAddrIndex = Index; }
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; }
+
+ std::vector<Forward> &getForwardedMustTailRegParms() {
+ return ForwardedMustTailRegParms;
+ }
};
+
} // End llvm namespace
#endif