From e6336a9b69aff51cf511712e485c11fdc2fdc3a6 Mon Sep 17 00:00:00 2001
From: Robert Bocchino <bocchino@illinois.edu>
Date: Tue, 17 Jan 2006 20:07:07 +0000
Subject: [PATCH] Constant folding support for the insertelement operation.

llvm-svn: 25407
---
 llvm/lib/Transforms/Utils/Local.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/llvm/lib/Transforms/Utils/Local.cpp b/llvm/lib/Transforms/Utils/Local.cpp
index cfd67f2d8315..f2598c16ce4d 100644
--- a/llvm/lib/Transforms/Utils/Local.cpp
+++ b/llvm/lib/Transforms/Utils/Local.cpp
@@ -104,6 +104,9 @@ Constant *llvm::ConstantFoldInstruction(Instruction *I) {
     return 0;
   case Instruction::ExtractElement:
     return ConstantExpr::getExtractElement(Op0, Op1);
+  case Instruction::InsertElement:
+    if (Constant *Op2 = dyn_cast<Constant>(I->getOperand(2)))
+      return ConstantExpr::getInsertElement(Op0, Op1, Op2);
   case Instruction::GetElementPtr:
     std::vector<Constant*> IdxList;
     IdxList.reserve(I->getNumOperands()-1);