Fix a bit of backwards logic that broke exptree and smg2000


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24056 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 4aab096..e029f7a 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -3862,7 +3862,7 @@
       Amt = ConstantUInt::get(Type::UIntTy, Scale);
       if (ConstantUInt *CI = dyn_cast<ConstantUInt>(NumElements))
         Amt = ConstantExpr::getMul(CI, cast<ConstantUInt>(Amt));
-      else if (cast<ConstantUInt>(Amt)->getValue() == 1) {
+      else if (Scale != 1) {
         Instruction *Tmp = BinaryOperator::createMul(Amt, NumElements, "tmp");
         Amt = InsertNewInstBefore(Tmp, AI);
       }