From: Chris Lattner <sabre@nondot.org>
Date: Fri, 12 Mar 2004 05:53:03 +0000 (+0000)
Subject: Add constant folding wrapper support for select instructions.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=17fd273512037da9838240b522619f4a6d2792b7;p=oota-llvm.git

Add constant folding wrapper support for select instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12319 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 821d1e13ebc..c54765b4278 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -79,6 +79,10 @@ Constant *llvm::ConstantFoldInstruction(Instruction *I) {
   default: return 0;
   case Instruction::Cast:
     return ConstantExpr::getCast(Op0, I->getType());
+  case Instruction::Select:
+    if (Constant *Op2 = dyn_cast<Constant>(I->getOperand(2)))
+      return ConstantExpr::getSelect(Op0, Op1, Op2);
+    return 0;
   case Instruction::GetElementPtr:
     std::vector<Constant*> IdxList;
     IdxList.reserve(I->getNumOperands()-1);