forked from LeenkxTeam/Kmake
48 lines
1.2 KiB
JavaScript
48 lines
1.2 KiB
JavaScript
|
// Copyright 2024 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 --turbolev --turbofan
|
||
|
|
// Flags: --no-always-turbofan --const-tracking-let
|
||
|
|
|
||
|
|
let glob_a = 0;
|
||
|
|
let glob_b = 3.35;
|
||
|
|
{
|
||
|
|
function compute_val(v) { return v + 1.15; }
|
||
|
|
function read() { return glob_a + glob_b; }
|
||
|
|
function write(v, w) {
|
||
|
|
glob_a = v;
|
||
|
|
let f64 = compute_val(w);
|
||
|
|
glob_b = f64;
|
||
|
|
}
|
||
|
|
|
||
|
|
%PrepareFunctionForOptimization(compute_val);
|
||
|
|
|
||
|
|
%PrepareFunctionForOptimization(read);
|
||
|
|
assertEquals(3.35, read());
|
||
|
|
%OptimizeFunctionOnNextCall(read);
|
||
|
|
assertEquals(3.35, read());
|
||
|
|
assertOptimized(read);
|
||
|
|
|
||
|
|
%PrepareFunctionForOptimization(write);
|
||
|
|
// Write the same value. This won't invalidate the constness.
|
||
|
|
write(0, 2.2);
|
||
|
|
glob_b = 3.35;
|
||
|
|
assertEquals(3.35, read());
|
||
|
|
|
||
|
|
%OptimizeFunctionOnNextCall(write);
|
||
|
|
write(0, 2.2);
|
||
|
|
assertEquals(3.35, read());
|
||
|
|
assertOptimized(read);
|
||
|
|
|
||
|
|
// Invalidating {glob_a} constness.
|
||
|
|
write(1, 2.2);
|
||
|
|
assertUnoptimized(write);
|
||
|
|
assertEquals(4.35, read());
|
||
|
|
|
||
|
|
%OptimizeFunctionOnNextCall(write);
|
||
|
|
write(1, 2.2);
|
||
|
|
assertEquals(4.35, read());
|
||
|
|
assertOptimized(write);
|
||
|
|
}
|