Remove PHINode::reserveOperandSpace(). Instead, add a parameter to
PHINode::Create() giving the (known or expected) number of operands.

llvm-svn: 128537
diff --git a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
index 0c0db3d..2185176 100644
--- a/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
@@ -600,8 +600,7 @@
   }
 
   // Okay, we can do the transformation: create the new PHI node.
-  PHINode *NewPN = PHINode::Create(I.getType(), "");
-  NewPN->reserveOperandSpace(PN->getNumIncomingValues());
+  PHINode *NewPN = PHINode::Create(I.getType(), PN->getNumIncomingValues(), "");
   InsertNewInstBefore(NewPN, *PN);
   NewPN->takeName(PN);