v8/test/mjsunit/regress/regress-3985.js
Mathias Bynens c6a16c10dd [test] Add %PrepareForOptimization to even more tests
With bytecode flushing and lazy feedback allocation, we need to call
%PrepareForOptimization before we call %OptimizeFunctionOnNextCall,
ideally after declaring the function.

Bug: v8:8801, v8:8394, v8:9183
Change-Id: I3fb257282a30f6526a376a3afdedb44786320d34
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1648255
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Reviewed-by: Maya Lekova <mslekova@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62119}
2019-06-12 14:40:14 +00:00

53 lines
826 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
var shouldThrow = false;
function h() {
try { // Prevent inlining in Crankshaft.
} catch (e) {
}
var res = g.arguments[0].x;
if (shouldThrow) {
throw res;
}
return res;
}
function g(o) {
h();
}
function f1() {
var o = {x: 1};
g(o);
return o.x;
};
%PrepareFunctionForOptimization(f1);
function f2() {
var o = {x: 2};
g(o);
return o.x;
};
%PrepareFunctionForOptimization(f2);
f1();
f2();
f1();
f2();
%OptimizeFunctionOnNextCall(f1);
%OptimizeFunctionOnNextCall(f2);
shouldThrow = true;
try {
f1();
} catch (e) {
assertEquals(e, 1);
}
try {
f2();
} catch (e) {
assertEquals(e, 2);
}