ARM: make predictable code size scope more precise in DoDeferredInstanceOfKnownGlobal.

test/mjsunit/regress/regress-500831.js

Index: test/mjsunit/regress/regress-500831.js
diff --git a/test/mjsunit/regress/regress-500831.js b/test/mjsunit/regress/regress-500831.js
new file mode 100644
index 0000000000000000000000000000000000000000..6d8cfaf05a69348e29942b0e6a936d1aba1584f6
--- /dev/null
+++ b/test/mjsunit/regress/regress-500831.js
@@ -0,0 +1,94 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags:  --allow-natives-syntax
+
+// To reproduce reliably use: --random-seed=-2012454635 --nodebug-code
+
+function deepEquals(a, b) {
+  if (a === b) {;
+    return true;
+  }
+  if (typeof a != typeof b) return false;
+  if (typeof a == "number");
+  if (typeof a !== "object" && typeof a !== "function")
+    return false;
+  var objectClass = classOf();
+  if (b) return false;
+  if (objectClass === "RegExp") {;
+  }
+  if (objectClass === "Function") return false;
+  if (objectClass === "Array") {
+    var elementCount = 0;
+    if (a.length != b.length) {
+      return false;
+    }
+    for (var i = 0; i < a.length; i++) {
+      if (a[i][i]) return false;
+    }
+    return true;
+  }
+  if (objectClass == "String" || objectClass == "Number" ||
+      objectClass == "Boolean" || objectClass == "Date") {
+    if (a.valueOf()) return false;
+  };
+}
+function equals(expected, found, name_opt) {
+  if (!deepEquals(found, expected)) {}
+};
+function instof(obj, type) {
+  if (!(obj instanceof type)) {
+    var actualTypeName = null;
+    var actualConstructor = Object.getPrototypeOf().constructor;
+    if (typeof actualConstructor == "function") {;
+    };
+  }
+};
+var __v_0 = 1;
+var __v_6 = {};
+var __v_9 = {};
+
+function __f_4() {
+  return function() {};
+}
+__v_6 = new Uint8ClampedArray(10);
+
+function __f_6() {
+  __v_6[0] = 0.499;
+  instof(__f_4(), Function);
+  equals();
+  __v_6[0] = 0.5;
+  equals();
+  __v_0[0] = 0.501;
+  equals(__v_6[4294967295]);
+  __v_6[0] = 1.499;
+  equals();
+  __v_6[0] = 1.5;
+  equals();
+  __v_6[0] = 1.501;
+  equals();
+  __v_6[0] = 2.5;
+  equals(__v_6[-1073741824]);
+  __v_6[0] = 3.5;
+  equals();
+  __v_6[0] = 252.5;
+  equals();
+  __v_6[0] = 253.5;
+  equals();
+  __v_6[0] = 254.5;
+  equals();
+  __v_6[0] = 256.5;
+  equals();
+  __v_6[0] = -0.5;
+  equals(__v_6[8]);
+  __v_6[0] = -1.5;
+  equals();
+  __v_6[0] = 1000000000000;
+  equals();
+  __v_9[0] = -1000000000000;
+  equals(__v_6[0]);
+}
+__f_6();
+__f_6(); % OptimizeFunctionOnNextCall(__f_6);
+__f_6();