Active smi-only optimizations for large array literals.

src/ia32/full-codegen-ia32.cc

Index: src/ia32/full-codegen-ia32.cc
diff --git a/src/ia32/full-codegen-ia32.cc b/src/ia32/full-codegen-ia32.cc
index d45a9cdaeea3ab3725152056bb3a87ecde43e77d..68d89a27f06f2a56d473795e18ab180e1ebe71a5 100644
--- a/src/ia32/full-codegen-ia32.cc
+++ b/src/ia32/full-codegen-ia32.cc
@@ -1499,12 +1499,10 @@ void FullCodeGenerator::VisitArrayLiteral(ArrayLiteral* expr) {
                         kDontSaveFPRegs,
                         EMIT_REMEMBERED_SET,
                         OMIT_SMI_CHECK);
-    if (FLAG_smi_only_arrays) {
-      __ mov(edi, FieldOperand(ebx, JSObject::kMapOffset));
-      __ CheckFastSmiOnlyElements(edi, &no_map_change, Label::kNear);
-      __ push(Operand(esp, 0));
-      __ CallRuntime(Runtime::kNonSmiElementStored, 1);
-    }
+    __ mov(edi, FieldOperand(ebx, JSObject::kMapOffset));
+    __ CheckFastSmiOnlyElements(edi, &no_map_change, Label::kNear);
+    __ push(Operand(esp, 0));
+    __ CallRuntime(Runtime::kNonSmiElementStored, 1);
     __ bind(&no_map_change);
 
     PrepareForBailoutForId(expr->GetIdForElement(i), NO_REGISTERS);