[C++11] Add 'override' keyword to virtual methods that override their base class.

[oota-llvm.git] / include / llvm / Target / TargetFrameLowering.h

diff --git a/include/llvm/Target/TargetFrameLowering.h b/include/llvm/Target/TargetFrameLowering.h
index ea279168f7c91434e005cdc470633d7b16b39885..a60147f5c092a3d5ae3ec74a51424ebaab991d25 100644 (file)
--- a/include/llvm/Target/TargetFrameLowering.h
+++ b/include/llvm/Target/TargetFrameLowering.h
@@ -88,6 +88,11 @@ public:
   ///
   int getOffsetOfLocalArea() const { return LocalAreaOffset; }
 
+  /// isFPCloseToIncomingSP - Return true if the frame pointer is close to
+  /// the incoming stack pointer, false if it is close to the post-prologue
+  /// stack pointer.
+  virtual bool isFPCloseToIncomingSP() const { return true; }
+
   /// getCalleeSavedSpillSlots - This method returns a pointer to an array of
   /// pairs, that contains an entry for each callee saved register that must be
   /// spilled to a particular stack location if it is spilled.
@@ -194,7 +199,23 @@ public:
   /// finalized.  Once the frame is finalized, MO_FrameIndex operands are
   /// replaced with direct constants.  This method is optional.
   ///
-  virtual void processFunctionBeforeFrameFinalized(MachineFunction &MF) const {
+  virtual void processFunctionBeforeFrameFinalized(MachineFunction &MF,
+                                               RegScavenger *RS = NULL) const {
+  }
+
+  /// eliminateCallFramePseudoInstr - This method is called during prolog/epilog
+  /// code insertion to eliminate call frame setup and destroy pseudo
+  /// instructions (but only if the Target is using them).  It is responsible
+  /// for eliminating these instructions, replacing them with concrete
+  /// instructions.  This method need only be implemented if using call frame
+  /// setup/destroy pseudo instructions.
+  ///
+  virtual void
+  eliminateCallFramePseudoInstr(MachineFunction &MF,
+                                MachineBasicBlock &MBB,
+                                MachineBasicBlock::iterator MI) const {
+    llvm_unreachable("Call Frame Pseudo Instructions do not exist on this "
+                     "target!");
   }
 };