From e0938d8a87a6c8b12f68fbe784a270dd2d552331 Mon Sep 17 00:00:00 2001
From: Jay Foad <jay.foad@gmail.com>
Date: Wed, 30 Mar 2011 11:19:20 +0000
Subject: (Almost) always call reserveOperandSpace() on newly created PHINodes.

llvm-svn: 128535
---
 llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp')

diff --git a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
index ccb8287d796..24d20d0e84d 100644
--- a/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
+++ b/llvm/lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
@@ -117,6 +117,7 @@ bool UnifyFunctionExitNodes::runOnFunction(Function &F) {
   } else {
     // If the function doesn't return void... add a PHI node to the block...
     PN = PHINode::Create(F.getReturnType(), "UnifiedRetVal");
+    PN->reserveOperandSpace(ReturningBlocks.size());
     NewRetBlock->getInstList().push_back(PN);
     ReturnInst::Create(F.getContext(), PN, NewRetBlock);
   }
-- 
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