874cd773ef
Also make return and unconditional jumps kill the environment instead of clearing it. This was still leftover from before we introduced liveness and prevented sharing as well. Bug: v8:7790 Change-Id: Ic79d64c9eaedf608d26e3265d4b27d21f7f3dfe1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1948710 Auto-Submit: Georg Neis <neis@chromium.org> Commit-Queue: Maya Lekova <mslekova@chromium.org> Reviewed-by: Maya Lekova <mslekova@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#65345}
38 lines
762 B
JavaScript
38 lines
762 B
JavaScript
// Copyright 2019 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 --opt --no-always-opt
|
|
|
|
function f(x) {
|
|
%TurbofanStaticAssert(x.foo === 42);
|
|
return %IsBeingInterpreted();
|
|
}
|
|
|
|
function main(b, ret) {
|
|
const x = new Object();
|
|
const y = x;
|
|
if (b) {
|
|
return ret;
|
|
} else {
|
|
x.foo = 42;
|
|
return f(y);
|
|
}
|
|
}
|
|
|
|
|
|
%PrepareFunctionForOptimization(f);
|
|
%PrepareFunctionForOptimization(main);
|
|
|
|
f({a: 1});
|
|
f({b: 1});
|
|
f({c: 1});
|
|
f({d: 1});
|
|
|
|
assertTrue(main(true, true));
|
|
assertTrue(main(true, true));
|
|
assertTrue(main(false, true));
|
|
assertTrue(main(false, true));
|
|
%OptimizeFunctionOnNextCall(main);
|
|
assertFalse(main(false));
|