Make pointer parameter const for isUsedInBasicBlock.

llvm-svn: 56625
diff --git a/llvm/lib/VMCore/Value.cpp b/llvm/lib/VMCore/Value.cpp
index bc5b7a9..d143b6b 100644
--- a/llvm/lib/VMCore/Value.cpp
+++ b/llvm/lib/VMCore/Value.cpp
@@ -95,7 +95,7 @@
 
 /// isUsedInBasicBlock - Return true if this value is used in the specified
 /// basic block.
-bool Value::isUsedInBasicBlock(BasicBlock *BB) const {
+bool Value::isUsedInBasicBlock(const BasicBlock *BB) const {
   for (use_const_iterator I = use_begin(), E = use_end(); I != E; ++I) {
     const Instruction *User = dyn_cast<Instruction>(*I);
     if (User && User->getParent() == BB)