From: Evan Cheng <evan.cheng@apple.com>
Date: Fri, 9 Jun 2006 06:25:10 +0000 (+0000)
Subject: Comments to appease sabre.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=e5e228df19d6e9e1218fecfb49f8ef1f53d6759c;p=oota-llvm.git

Comments to appease sabre.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28737 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/X86MachineFunctionInfo.h b/lib/Target/X86/X86MachineFunctionInfo.h
index 9da2bf901bb..ce7eebee7dd 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;}