[llvm-commits] CVS: llvm/lib/Target/X86/X86MachineFunctionInfo.h

[Evan Cheng]

Changes in directory llvm/lib/Target/X86:

X86MachineFunctionInfo.h updated: 1.1 -> 1.2
---
Log message:

Comments to appease sabre.

---
Diffs of the changes:  (+7 -1)

 X86MachineFunctionInfo.h |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletion(-)


Index: llvm/lib/Target/X86/X86MachineFunctionInfo.h
diff -u llvm/lib/Target/X86/X86MachineFunctionInfo.h:1.1 llvm/lib/Target/X86/X86MachineFunctionInfo.h:1.2
--- llvm/lib/Target/X86/X86MachineFunctionInfo.h:1.1	Tue Jun  6 18:30:24 2006
+++ llvm/lib/Target/X86/X86MachineFunctionInfo.h	Fri Jun  9 01:25:10 2006
@@ -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;}