Handle single element array growth + transition in generic KeyedStoreIC

test/mjsunit/elements-kind.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 90 matching lines @@
   }
   assertEquals(expected, getKind(obj), name_opt);
 }
 
 var me = {};
 assertKind(elements_kind.fast, me);
 me.dance = 0xD15C0;
 me.drink = 0xC0C0A;
 assertKind(elements_kind.fast, me);
 
-if (support_smi_only_arrays) {
-  var too = [1,2,3];
-  assertKind(elements_kind.fast_smi_only, too);
-  too.dance = 0xD15C0;
-  too.drink = 0xC0C0A;
-  assertKind(elements_kind.fast_smi_only, too);
-}
+var too = [1,2,3];
+assertKind(elements_kind.fast_smi_only, too);
+too.dance = 0xD15C0;
+too.drink = 0xC0C0A;
+assertKind(elements_kind.fast_smi_only, too);
 
 // Make sure the element kind transitions from smionly when a non-smi is stored.
 var you = new Array();
 assertKind(elements_kind.fast_smi_only, you);
 for (var i = 0; i < 1337; i++) {
   var val = i;
   if (i == 1336) {
     assertKind(elements_kind.fast_smi_only, you);
     val = new Object();
   }
@@ skipping 99 matching lines @@
   %OptimizeFunctionOnNextCall(convert_mixed);
   convert_mixed(smis, 1, elements_kind.fast);
   convert_mixed(doubles, 1, elements_kind.fast);
   assertTrue(%HaveSameMap(smis, doubles));
 }
 
 // Crankshaft support for smi-only elements in dynamic array literals.
 function get(foo) { return foo; }  // Used to generate dynamic values.
 
 function crankshaft_test() {
-  if (support_smi_only_arrays) {
-    var a1 = [get(1), get(2), get(3)];
-    assertKind(elements_kind.fast_smi_only, a1);
-  }
+  var a1 = [get(1), get(2), get(3)];
+  assertKind(elements_kind.fast_smi_only, a1);
   var a2 = new Array(get(1), get(2), get(3));
   assertKind(elements_kind.fast_smi_only, a2);
   var b = [get(1), get(2), get("three")];
   assertKind(elements_kind.fast, b);
   var c = [get(1), get(2), get(3.5)];
   if (support_smi_only_arrays) {
     assertKind(elements_kind.fast_double, c);
+  } else {
+    assertKind(elements_kind.fast, c);
   }
 }
 for (var i = 0; i < 3; i++) {
   crankshaft_test();
 }
 %OptimizeFunctionOnNextCall(crankshaft_test);
 crankshaft_test();
 
 // Elements_kind transitions for arrays.
 
@@ skipping 77 matching lines @@
   var a = ["foo", "bar"];
   assertKind(elements_kind.fast, a);
   var b = a.splice(0, 1);
   assertKind(elements_kind.fast, b);
   var c = a.slice(0, 1);
   assertKind(elements_kind.fast, c);
 }
 
 // Throw away type information in the ICs for next stress run.
 gc();