v8/test/mjsunit/compiler/try-deopt.js
mstarzinger d016387e81 [turbofan] Add test coverage for deopt within try-catch.
This just contains test, no fixes. Note that some of the tests are
still disabled because they either fail or we don't want ClusterFuzz
to pick up the flag yet.

R=jarin@chromium.org
TEST=cctest/test-run-jsexceptions/Deopt,mjsunit/compiler/try-deopt

Review URL: https://codereview.chromium.org/972943004

Cr-Commit-Position: refs/heads/master@{#26968}
2015-03-03 17:23:42 +00:00

57 lines
1.3 KiB
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.
// TODO(mstarzinger): Add FLAG_turbo_exceptions once we want ClusterFuzz.
// Flags: --allow-natives-syntax --turbo-deoptimization
function DeoptFromTry(x) {
try {
%DeoptimizeFunction(DeoptFromTry);
throw x;
} catch (e) {
return e + 1;
}
return x + 2;
}
%OptimizeFunctionOnNextCall(DeoptFromTry);
assertEquals(24, DeoptFromTry(23));
function DeoptFromCatch(x) {
try {
throw x;
} catch (e) {
%DeoptimizeFunction(DeoptFromCatch);
return e + 1;
}
return x + 2;
}
%OptimizeFunctionOnNextCall(DeoptFromCatch);
assertEquals(24, DeoptFromCatch(23));
function DeoptFromFinally_Return(x) {
try {
throw x;
} finally {
%DeoptimizeFunction(DeoptFromFinally_Return);
return x + 1;
}
return x + 2;
}
%OptimizeFunctionOnNextCall(DeoptFromFinally_Return);
assertEquals(24, DeoptFromFinally_Return(23));
function DeoptFromFinally_ReThrow(x) {
try {
throw x;
} finally {
%DeoptimizeFunction(DeoptFromFinally_ReThrow);
}
return x + 2;
}
%OptimizeFunctionOnNextCall(DeoptFromFinally_ReThrow);
assertThrows("DeoptFromFinally_ReThrow(new Error)", Error);