1 files changed, 14 insertions, 5 deletions

diff --git a/include/llvm/Transforms/Utils/Local.h b/include/llvm/Transforms/Utils/Local.h
index 2cdd31fb14d0..0b8147e76dfd 100644
--- a/include/llvm/Transforms/Utils/Local.h
+++ b/include/llvm/Transforms/Utils/Local.h
@@ -27,7 +27,7 @@ class PHINode;
 class AllocaInst;
 class ConstantExpr;
 class TargetData;
-struct DbgInfoIntrinsic;
+class DbgInfoIntrinsic;
 
 template<typename T> class SmallVectorImpl;
   
@@ -63,16 +63,25 @@ bool isInstructionTriviallyDead(Instruction *I);
 
 /// RecursivelyDeleteTriviallyDeadInstructions - If the specified value is a
 /// trivially dead instruction, delete it.  If that makes any of its operands
-/// trivially dead, delete them too, recursively.
-void RecursivelyDeleteTriviallyDeadInstructions(Value *V);
+/// trivially dead, delete them too, recursively.  Return true if any
+/// instructions were deleted.
+bool RecursivelyDeleteTriviallyDeadInstructions(Value *V);
 
 /// RecursivelyDeleteDeadPHINode - If the specified value is an effectively
 /// dead PHI node, due to being a def-use chain of single-use nodes that
 /// either forms a cycle or is terminated by a trivially dead instruction,
 /// delete it.  If that makes any of its operands trivially dead, delete them
-/// too, recursively.
-void RecursivelyDeleteDeadPHINode(PHINode *PN);
+/// too, recursively.  Return true if the PHI node is actually deleted.
+bool RecursivelyDeleteDeadPHINode(PHINode *PN);
 
+  
+/// SimplifyInstructionsInBlock - Scan the specified basic block and try to
+/// simplify any instructions in it and recursively delete dead instructions.
+///
+/// This returns true if it changed the code, note that it can delete
+/// instructions in other blocks as well in this block.
+bool SimplifyInstructionsInBlock(BasicBlock *BB, const TargetData *TD = 0);
+    
 //===----------------------------------------------------------------------===//
 //  Control Flow Graph Restructuring.
 //