v8/test/mjsunit/compiler/escape-analysis-17.js
Tobias Tebbi a969ab67f8 [turbofan] teach escape analysis about oddly occurring NumberLessThan node
Bug: chromium:733181
Change-Id: If5b0bc8592ba71962237814ad521499afda22edf
Reviewed-on: https://chromium-review.googlesource.com/538653
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#45977}
2017-06-16 11:00:40 +00:00

28 lines
658 B
JavaScript

// 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 --turbo-escape
function foo() {
var a = {x:1};
var b = {x:1.5, y: 1};
var x = 0;
for (var i = 0; i < 1; i = {}) {
// The second iteration of this loop is dead code, leading to a
// contradiction between dynamic and static information.
x += a.x + 0.5;
x += a.x % 0.5;
x += Math.abs(a.x);
x += a.x < 6;
x += a.x === 7;
x += a.x <= 8;
a = b;
}
return x;
}
foo();
foo();
%OptimizeFunctionOnNextCall(foo);
foo();