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Unified Diff: test/mjsunit/compiler/deopt-accessors4.js

Issue 2197913002: [turbofan] Fix various bailout points for AstGraphBuilder. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Address comments Created 4 years, 5 months ago
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Index: test/mjsunit/compiler/deopt-accessors4.js
diff --git a/test/mjsunit/compiler/deopt-accessors4.js b/test/mjsunit/compiler/deopt-accessors4.js
new file mode 100644
index 0000000000000000000000000000000000000000..5a8453f237e001605894182acff2c32340f3ceba
--- /dev/null
+++ b/test/mjsunit/compiler/deopt-accessors4.js
@@ -0,0 +1,29 @@
+// Copyright 2016 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
+
+var o = {v:1};
+var deopt = false;
+
+Object.defineProperty(o, "x", {
+ get: function() { return this.v; },
+ set: function(v) {
+ this.v = v;
+ if (deopt) {
+ %DeoptimizeFunction(foo);
+ }
+ }
+});
+
+function foo(o) {
+ var x = "x";
+ return ++o[x];
+}
+
+assertEquals(2, foo(o));
+assertEquals(3, foo(o));
+%OptimizeFunctionOnNextCall(foo);
+deopt = true;
+assertEquals(4, foo(o));
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