9ac62c4dcc
A call to this intrinsic will produce true in the interpreter and false in optimized code. This is useful for writing tests. Change-Id: I64d06ed062027e723eca82d6f879202244f21fdf Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1939750 Commit-Queue: Georg Neis <neis@chromium.org> Auto-Submit: Georg Neis <neis@chromium.org> Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Cr-Commit-Position: refs/heads/master@{#65240}
55 lines
950 B
JavaScript
55 lines
950 B
JavaScript
// Copyright 2019 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --opt --no-always-opt
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var expect_interpreted = true;
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function C() {
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this.a = 1;
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assertEquals(expect_interpreted, %IsBeingInterpreted());
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%TurbofanStaticAssert(this.x == 42);
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};
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function D() {
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this.x = 42;
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C.call(this);
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};
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function E() {
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D.call(this);
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}
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function F() {
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E.call(this);
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};
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function G() {
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F.call(this);
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};
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function foo() {
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new D;
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}
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%PrepareFunctionForOptimization(C);
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%PrepareFunctionForOptimization(D);
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%PrepareFunctionForOptimization(E);
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%PrepareFunctionForOptimization(F);
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%PrepareFunctionForOptimization(G);
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%PrepareFunctionForOptimization(foo);
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// Make 'this.x' access in C megamorhpic.
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new C;
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new D;
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new E;
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new F;
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new G;
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foo();
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foo();
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%OptimizeFunctionOnNextCall(foo);
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expect_interpreted = false;
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foo();
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