If we detect that the instruction we are simplifying is unreachable, arrange for

[oota-llvm.git] / lib / CodeGen / SelectionDAG / SelectionDAGBuilder.h

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index bc3fd62c3f29d9140d7fb24559845498b4dee764..dfd1df75f10701893478e17151873fc76b9c24e1 100644 (file)
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -18,9 +18,6 @@
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/ADT/APInt.h"
 #include "llvm/ADT/DenseMap.h"
-#ifndef NDEBUG
-#include "llvm/ADT/SmallSet.h"
-#endif
 #include "llvm/CodeGen/SelectionDAGNodes.h"
 #include "llvm/CodeGen/ValueTypes.h"
 #include "llvm/Support/CallSite.h"
@@ -401,6 +398,10 @@ public:
   void LowerCallTo(ImmutableCallSite CS, SDValue Callee, bool IsTailCall,
                    MachineBasicBlock *LandingPad = NULL);
 
+  /// UpdateSplitBlock - When an MBB was split during scheduling, update the
+  /// references that ned to refer to the last resulting block.
+  void UpdateSplitBlock(MachineBasicBlock *First, MachineBasicBlock *Last);
+
 private:
   // Terminator instructions.
   void visitRet(const ReturnInst &I);
@@ -528,13 +529,11 @@ private:
 
   void HandlePHINodesInSuccessorBlocks(const BasicBlock *LLVMBB);
 
-  /// EmitFuncArgumentDbgValue - If the DbgValueInst is a dbg_value of a
-  /// function argument, create the corresponding DBG_VALUE machine instruction
-  /// for it now. At the end of instruction selection, they will be inserted to
-  /// the entry BB.
-  bool EmitFuncArgumentDbgValue(const DbgValueInst &DI,
-                                const Value *V, MDNode *Variable,
-                                uint64_t Offset, const SDValue &N);
+  /// EmitFuncArgumentDbgValue - If V is an function argument then create
+  /// corresponding DBG_VALUE machine instruction for it now. At the end of 
+  /// instruction selection, they will be inserted to the entry BB.
+  bool EmitFuncArgumentDbgValue(const Value *V, MDNode *Variable,
+                                int64_t Offset, const SDValue &N);
 };
 
 } // end namespace llvm