v8/test/mjsunit/get-caller-js-function.js
danno 74f9d8c901 Add %GetCallerJSFunction intrinsic
Only optimized for TF

R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/1146963002

Cr-Commit-Position: refs/heads/master@{#28812}
2015-06-05 12:29:04 +00:00

22 lines
792 B
JavaScript

// 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 --turbo-filter=* --nostress-opt
// Test that for fully optimized but non inlined code, GetCallerJSFunction walks
// up a single stack frame to get the calling function. Full optimization elides
// the check in the runtime version of the intrinsic that would throw since the
// caller isn't a stub. It's a bit of a hack, but allows minimal testing of the
// intrinsic without writing a full-blown cctest.
(function() {
var a = function() {
return %_GetCallerJSFunction();
};
var b = function() {
return a();
};
%OptimizeFunctionOnNextCall(a);
assertEquals(b, b());
}());