Experimental parser: merge to r19637

test/mjsunit/compiler/to-fast-properties.js

 // Copyright 2014 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
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --expose-gc
+// This test requires OSR or --stress-runs=3 to optimize the top level script.
 
-function boom() {
-  var args = [];
-  for (var i = 0; i < 125000; i++)
-    args.push(i);
-  return Array.apply(Array, args);
+for (var i = 0; i < 3; i++) {
+  // HToFastProperties is used for top-level object literals that have
+  // function property.
+  var obj = {
+    index: function() { return i; },
+    x: 0
+  }
+  var n = 10000;
+  // Loop to hit OSR.
+  for (var j = 0; j < n; j++) {
+    obj.x += i;
+  }
+  assertEquals(obj.index() * n, obj.x);
 }
-var array = boom();
-function fib(n) {
-  var f0 = 0, f1 = 1;
-  for (; n > 0; n = n - 1) {
-    f0 + f1;
-    f0 = array;
-  }
-}
-fib(12);