v8/test/mjsunit/regress/regress-bce-underflow.js
Ross McIlroy 994db73210 [cleanup] Add missing %PrepareFunctionForOptimize in mjsunit tests
Bug: v8:8801,v8:8394,v8:9183
Change-Id: I55027b3ba0c78f40d82aaf2d160aaf957d02cab5
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1662292
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62214}
2019-06-17 13:14:51 +00:00

37 lines
789 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
function f(a, i, bool) {
var result;
if (bool) {
// Make sure i - -0x80000000 doesn't overflow in BCE, missing a check for
// x-0 later on.
result = f2(a, 0x7fffffff, i, i, -0x80000000);
} else {
result = f2(a, -3, 4, i, 0);
}
return result;
}
%PrepareFunctionForOptimization(f);
function f2(a, c, x, i, d) {
return a[x + c] + a[x - 0] + a[i - d];
}
var a = [];
var i = 0;
a.push(i++);
a.push(i++);
a.push(i++);
a.push(i++);
a.push(i++);
f(a, 0, false);
f(a, 0, false);
f(a, 0, false);
%OptimizeFunctionOnNextCall(f);
%DebugPrint(f(a, -0x7fffffff, true));