-//====- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
-//
+//===-- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
+//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the Evan Cheng and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
-//
+// 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.
namespace llvm {
-/// X86FunctionInfo - This class is derived from MachineFunction private
-/// X86 target-specific information for each MachineFunction.
-class X86FunctionInfo : public MachineFunctionInfo {
- // ForceFramePointer - True if the function is required to use of frame
- // 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.
+/// 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
+ /// that FP eliminatation is turned off. For example, Cygwin main function
+ /// contains stack pointer re-alignment code which requires FP.
bool ForceFramePointer;
+
+ /// CalleeSavedFrameSize - Size of the callee-saved register portion of the
+ /// stack frame in bytes.
+ unsigned CalleeSavedFrameSize;
+
+ /// 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;
+
+ /// 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
+ /// returning the value of the returned struct in a register. This field
+ /// holds the virtual register into which the sret argument is passed.
+ unsigned SRetReturnReg;
+
+ /// GlobalBaseReg - keeps track of the virtual register initialized for
+ /// use as the global base register. This is used for PIC in some PIC
+ /// 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:
- X86FunctionInfo(MachineFunction& MF) : ForceFramePointer(false) {}
- bool getForceFramePointer() const { return ForceFramePointer;}
+ X86MachineFunctionInfo() : 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) {}
+
+ 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; }
+ void setCalleeSavedFrameSize(unsigned bytes) { CalleeSavedFrameSize = bytes; }
+
+ unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; }
+ void setBytesToPopOnReturn (unsigned bytes) { BytesToPopOnReturn = bytes;}
+
+ int getRAIndex() const { return ReturnAddrIndex; }
+ void setRAIndex(int Index) { ReturnAddrIndex = Index; }
+
+ int getTCReturnAddrDelta() const { return TailCallReturnAddrDelta; }
+ void setTCReturnAddrDelta(int delta) {TailCallReturnAddrDelta = delta;}
+
+ unsigned getSRetReturnReg() const { return SRetReturnReg; }
+ void setSRetReturnReg(unsigned Reg) { SRetReturnReg = Reg; }
+
+ 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; }
+
};
+
} // End llvm namespace
#endif
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