Upload Kmake

deps/v8/test/mjsunit/regress/regress-crbug-732169.js

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+// Copyright 2017 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
+
+(function TestGeneratorMaterialization() {
+  function* f([x]) { yield x }
+  // No warm-up of {f} to trigger soft deopt.
+  %PrepareFunctionForOptimization(f);
+  %OptimizeFunctionOnNextCall(f);
+  var gen = f([23]);
+  assertEquals("[object Generator]", gen.toString());
+  assertEquals({ done:false, value:23 }, gen.next());
+  assertEquals({ done:true, value:undefined }, gen.next());
+})();
+
+(function TestGeneratorMaterializationWithProperties() {
+  function* f(x = (%_DeoptimizeNow(), 23)) { yield x }
+  function g() {
+    var gen = f();
+    gen.p = 42;
+    return gen;
+  }
+  function h() { f() }
+  %PrepareFunctionForOptimization(h);
+  // Enough warm-up to make {p} an in-object property.
+  for (var i = 0; i < 100; ++i) { g(); h(); }
+  %OptimizeFunctionOnNextCall(h);
+  h();  // In {h} the generator does not escape.
+})();