blob: 875a8de5ab57f848734e396eaf66ddee5dc04651 [file] [log] [blame]
// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --allow-natives-syntax
(function() {
var result = [];
var x = 0;
function branch(b) {
if (b == "deopt") {
%DeoptimizeFunction(f);
return "c";
}
return b ? "a" : "b";
}
function f(label, b1, b2, b3) {
switch (label) {
case "string":
result.push(1);
break;
case branch(b1) + branch(b2):
result.push(2);
break;
case 10:
result.push(3);
break;
default:
branch(b3);
result.push(4);
break;
case x++:
branch(b3);
result.push(5);
break;
}
}
%PrepareFunctionForOptimization(f);
function assertResult(r, label, b1, b2, b3) {
f(label, b1, b2, b3);
assertEquals(result, r);
result = [];
}
// Warmup.
assertResult([2], "aa", true, true);
assertResult([2], "ab", true, false);
assertResult([2], "ba", false, true);
assertResult([2], "bb", false, false);
assertEquals(0, x);
assertResult([4], "other");
assertEquals(1, x);
assertResult([5], 1, true, true);
assertResult([4], 1, true, true);
assertResult([5], 3, true, true);
assertResult([4], 3, true, true);
assertResult([5], 5, true, true);
assertResult([4], 5, true, true);
assertEquals(7, x);
// Test regular behavior.
%OptimizeFunctionOnNextCall(f);
assertResult([2], "aa", true, true);
assertResult([1], "string");
assertResult([4], "other");
assertEquals(8, x);
assertResult([5], 8);
assertEquals(9, x);
// Test deopt at the beginning of the case label evaluation.
%PrepareFunctionForOptimization(f);
assertResult([2], "ca", "deopt", true);
%OptimizeFunctionOnNextCall(f);
assertResult([4], "ca", "deopt", false);
assertEquals(10, x);
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
// Test deopt in the middle of the case label evaluation.
assertResult([2], "ac", true, "deopt");
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
assertResult([4], "ac", false, "deopt");
assertEquals(11, x);
// Test deopt in the default case.
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
print("here");
assertResult([4], 10000, false, false, "deopt");
assertEquals(12, x);
// Test deopt in the default case.
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
assertResult([4], 10000, false, false, "deopt");
assertEquals(13, x);
// Test deopt in x++ case.
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
assertResult([5], 13, false, false, "deopt");
assertEquals(14, x);
})();
(function() {
var result = [];
var x = 0;
function branch(b) {
if (b == "deopt") {
%DeoptimizeFunction(f);
return "c";
}
return b ? "a" : "b";
}
function f(label, b1, b2, b3) {
switch (label) {
case "string":
result.push(1);
break;
case branch(b1) + branch(b2):
result.push(2);
// Fall through.
case 10:
result.push(3);
break;
default:
branch(b3);
result.push(4);
// Fall through.
case x++:
branch(b3);
result.push(5);
break;
}
}
%PrepareFunctionForOptimization(f);
function assertResult(r, label, b1, b2, b3) {
f(label, b1, b2, b3);
assertEquals(r, result);
result = [];
}
// Warmup.
assertResult([2,3], "aa", true, true);
assertResult([2,3], "ab", true, false);
assertResult([2,3], "ba", false, true);
assertResult([2,3], "bb", false, false);
assertEquals(0, x);
assertResult([4,5], "other");
assertEquals(1, x);
assertResult([5], 1, true, true);
assertResult([4,5], 1, true, true);
assertResult([5], 3, true, true);
assertResult([4,5], 3, true, true);
assertResult([5], 5, true, true);
assertResult([4,5], 5, true, true);
assertEquals(7, x);
// Test regular behavior.
%OptimizeFunctionOnNextCall(f);
assertResult([2,3], "aa", true, true);
assertResult([1], "string");
assertResult([4,5], "other");
assertEquals(8, x);
assertResult([5], 8);
assertEquals(9, x);
// Test deopt at the beginning of the case label evaluation.
%PrepareFunctionForOptimization(f);
assertResult([2,3], "ca", "deopt", true);
%OptimizeFunctionOnNextCall(f);
assertResult([4,5], "ca", "deopt", false);
assertEquals(10, x);
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
// Test deopt in the middle of the case label evaluation.
assertResult([2,3], "ac", true, "deopt");
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
assertResult([4,5], "ac", false, "deopt");
assertEquals(11, x);
// Test deopt in the default case.
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
print("here");
assertResult([4,5], 10000, false, false, "deopt");
assertEquals(12, x);
// Test deopt in the default case.
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
assertResult([4,5], 10000, false, false, "deopt");
assertEquals(13, x);
// Test deopt in x++ case.
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
assertResult([5], 13, false, false, "deopt");
assertEquals(14, x);
})();