diff options
| -rw-r--r-- | lib/Target/X86/X86MachineFunctionInfo.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Target/X86/X86MachineFunctionInfo.h b/lib/Target/X86/X86MachineFunctionInfo.h index 9da2bf901b..ce7eebee7d 100644 --- a/lib/Target/X86/X86MachineFunctionInfo.h +++ b/lib/Target/X86/X86MachineFunctionInfo.h @@ -18,8 +18,14 @@ namespace llvm { +/// X86FunctionInfo - This class is derived from MachineFunction private +/// X86 target-specific information for each MachineFunction. class X86FunctionInfo : public MachineFunctionInfo { - bool ForceFramePointer; // Function requires use of frame pointer. + // 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; public: X86FunctionInfo(MachineFunction& MF) : ForceFramePointer(false) {} bool getForceFramePointer() const { return ForceFramePointer;} |