1 //====- X86MachineFuctionInfo.h - X86 machine function info -----*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file was developed by the Evan Cheng and is distributed under
6 // the University of Illinois Open Source License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares X86-specific per-machine-function information.
12 //===----------------------------------------------------------------------===//
14 #ifndef X86MACHINEFUNCTIONINFO_H
15 #define X86MACHINEFUNCTIONINFO_H
17 #include "llvm/CodeGen/MachineFunction.h"
21 enum NameDecorationStyle {
27 /// X86FunctionInfo - This class is derived from MachineFunction private
28 /// X86 target-specific information for each MachineFunction.
29 class X86FunctionInfo : public MachineFunctionInfo {
30 /// ForceFramePointer - True if the function is required to use of frame
31 /// pointer for reasons other than it containing dynamic allocation or
32 /// that FP eliminatation is turned off. For example, Cygwin main function
33 /// contains stack pointer re-alignment code which requires FP.
34 bool ForceFramePointer;
36 /// BytesToPopOnReturn - amount of bytes function pops on return.
37 /// Used on windows platform for stdcall & fastcall name decoration
38 unsigned BytesToPopOnReturn;
40 /// If the function requires additional name decoration, DecorationStyle holds
41 /// the right way to do so.
42 NameDecorationStyle DecorationStyle;
45 X86FunctionInfo() : ForceFramePointer(false),
46 BytesToPopOnReturn(0),
47 DecorationStyle(None) {}
49 X86FunctionInfo(MachineFunction &MF) : ForceFramePointer(false),
50 BytesToPopOnReturn(0),
51 DecorationStyle(None) {}
53 bool getForceFramePointer() const { return ForceFramePointer;}
54 void setForceFramePointer(bool forceFP) { ForceFramePointer = forceFP; }
56 unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; }
57 void setBytesToPopOnReturn (unsigned bytes) { BytesToPopOnReturn = bytes;}
59 NameDecorationStyle getDecorationStyle() const { return DecorationStyle; }
60 void setDecorationStyle(NameDecorationStyle style) { DecorationStyle = style;}
63 } // End llvm namespace