Tag length of FixedArrayBase and smi-array[x] as smi representation

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index e10bee5eea340c700ce93749485fc62d159aed04..47d8601cdb0139ddc5d02fadd67ddc382f35c2ae 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -70,6 +70,7 @@ class LCodeGen;
   V(CheckNonSmi)                                \
   V(CheckPrototypeMaps)                         \
   V(CheckSmi)                                   \
+  V(CheckSmiAndReturn)                          \
   V(ClampDToUint8)                              \
   V(ClampIToUint8)                              \
   V(ClampTToUint8)                              \
@@ -2461,7 +2462,7 @@ class LCheckPrototypeMaps: public LTemplateInstruction<0, 0, 1> {
 };
 
 
-class LCheckSmi: public LTemplateInstruction<1, 1, 0> {
+class LCheckSmi: public LTemplateInstruction<0, 1, 0> {
  public:
   explicit LCheckSmi(LOperand* value) {
     inputs_[0] = value;
@@ -2473,6 +2474,18 @@ class LCheckSmi: public LTemplateInstruction<1, 1, 0> {
 };
 
 
+class LCheckSmiAndReturn: public LTemplateInstruction<1, 1, 0> {
+ public:
+  explicit LCheckSmiAndReturn(LOperand* value) {
+    inputs_[0] = value;
+  }
+
+  LOperand* value() { return inputs_[0]; }
+
+  DECLARE_CONCRETE_INSTRUCTION(CheckSmiAndReturn, "check-smi-and-return")
+};
+
+
 class LClampDToUint8: public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LClampDToUint8(LOperand* value) {