Doxygenate comments.

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

diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h
index 2fdcf8b660c9dadf1860b2bb0a12083c65a23a82..17acacec41d9b209187cdb06c283f3a5313117b4 100644 (file)
--- a/include/llvm/Target/TargetInstrInfo.h
+++ b/include/llvm/Target/TargetInstrInfo.h
@@ -101,7 +101,8 @@ public:
   /// the destination along with the FrameIndex of the loaded stack slot.  If
   /// not, return 0.  This predicate must return 0 if the instruction has
   /// any side effects other than loading from the stack slot.
-  virtual unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const{
+  virtual unsigned isLoadFromStackSlot(const MachineInstr *MI,
+                                       int &FrameIndex) const {
     return 0;
   }
   
@@ -110,7 +111,8 @@ public:
   /// the source reg along with the FrameIndex of the loaded stack slot.  If
   /// not, return 0.  This predicate must return 0 if the instruction has
   /// any side effects other than storing to the stack slot.
-  virtual unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const {
+  virtual unsigned isStoreToStackSlot(const MachineInstr *MI,
+                                      int &FrameIndex) const {
     return 0;
   }
 
@@ -127,7 +129,7 @@ public:
   /// from the argument area of a function if it does not change.  This should
   /// only return true of *all* loads the instruction does are invariant (if it
   /// does multiple loads).
-  virtual bool isInvariantLoad(MachineInstr *MI) const {
+  virtual bool isInvariantLoad(const MachineInstr *MI) const {
     return false;
   }
   
@@ -407,6 +409,13 @@ public:
     return false;
   }
 
+  /// IgnoreRegisterClassBarriers - Returns true if pre-register allocation
+  /// live interval splitting pass should ignore barriers of the specified
+  /// register class.
+  virtual bool IgnoreRegisterClassBarriers(const TargetRegisterClass *RC) const{
+    return true;
+  }
+
   /// getPointerRegClass - Returns a TargetRegisterClass used for pointer
   /// values.
   virtual const TargetRegisterClass *getPointerRegClass() const {
@@ -425,7 +434,6 @@ public:
   /// GetFunctionSizeInBytes - Returns the size of the specified MachineFunction.
   /// 
   virtual unsigned GetFunctionSizeInBytes(const MachineFunction &MF) const = 0;
-
 };
 
 /// TargetInstrInfoImpl - This is the default implementation of