[turbofan] Adds handling of number or oddball type feedback to SpeculativeNumberShiftLeft.

src/compiler/js-typed-lowering.cc

Index: src/compiler/js-typed-lowering.cc
diff --git a/src/compiler/js-typed-lowering.cc b/src/compiler/js-typed-lowering.cc
index a88658c408eed258899ff31448f2a6e9620a8f8c..a3d36dd6a03798a47ddabfd6532f66359f731b04 100644
--- a/src/compiler/js-typed-lowering.cc
+++ b/src/compiler/js-typed-lowering.cc
@@ -596,7 +596,8 @@ Reduction JSTypedLowering::ReduceShiftLeft(Node* node) {
   JSBinopReduction r(this, node);
   BinaryOperationHints::Hint feedback = r.GetNumberBinaryOperationFeedback();
   if (feedback == BinaryOperationHints::kSigned32 ||

[Benedikt Meurer, 2016/07/27 03:34:36]

Nit: use feedback != BinaryOperationHints::kAny as we do for the other reduction
rules.

[epertoso, 2016/07/27 08:26:36]

Done.

-      feedback == BinaryOperationHints::kSignedSmall) {
+      feedback == BinaryOperationHints::kSignedSmall ||
+      feedback == BinaryOperationHints::kNumberOrOddball) {
     return r.ChangeToSpeculativeOperator(
         simplified()->SpeculativeNumberShiftLeft(feedback), Type::Signed32());
   }