v8/test/mjsunit/polymorph-arrays.js

181 lines
6.1 KiB
JavaScript
Raw Normal View History

// Copyright 2011 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 init_array(a) {
for (var i = 0; i < 10; ++i ){
a[i] = i;
}
}
function init_sparse_array(a) {
for (var i = 0; i < 10; ++i ){
a[i] = i;
}
a[200000] = 256;
return %NormalizeElements(a);
}
function testPolymorphicLoads() {
function make_polymorphic_load_function() {
function load(a, i) {
return a[i];
}
var object_array = new Object;
var sparse_object_array = new Object;
var js_array = new Array(10);
var sparse_js_array = %NormalizeElements([]);
init_array(object_array);
init_array(js_array);
init_sparse_array(sparse_object_array);
init_sparse_array(sparse_js_array);
assertEquals(1, load(object_array, 1));
assertEquals(1, load(js_array, 1));
assertEquals(1, load(sparse_object_array, 1));
assertEquals(1, load(sparse_js_array, 1));
return load;
}
var object_array = new Object;
var sparse_object_array = new Object;
var js_array = new Array(10);
var sparse_js_array = %NormalizeElements([]);
init_array(object_array);
init_array(js_array);
init_sparse_array(sparse_object_array);
init_sparse_array(sparse_js_array);
load = make_polymorphic_load_function();
assertEquals(undefined, load(js_array, new Object()));
load = make_polymorphic_load_function();
assertEquals(undefined, load(object_array, new Object()));
load = make_polymorphic_load_function();
assertEquals(undefined, load(sparse_js_array, new Object()));
load = make_polymorphic_load_function();
assertEquals(undefined, load(sparse_object_array, new Object()));
// Try with crankshaft.
load = make_polymorphic_load_function();
%OptimizeFunctionOnNextCall(load);
assertEquals(1, load(object_array, 1));
assertEquals(1, load(js_array, 1));
assertEquals(1, load(sparse_object_array, 1));
assertEquals(1, load(sparse_js_array, 1));
load = make_polymorphic_load_function();
%OptimizeFunctionOnNextCall(load);
assertEquals(undefined, load(js_array, new Object()));
load = make_polymorphic_load_function();
%OptimizeFunctionOnNextCall(load);
assertEquals(undefined, load(object_array, new Object()));
load = make_polymorphic_load_function();
%OptimizeFunctionOnNextCall(load);
assertEquals(undefined, load(sparse_js_array, new Object()));
load = make_polymorphic_load_function();
%OptimizeFunctionOnNextCall(load);
assertEquals(undefined, load(sparse_object_array, new Object()));
}
function testPolymorphicStores() {
function make_polymorphic_store_function() {
function store(a, i, val) {
a[i] = val;
}
var object_array = new Object;
var sparse_object_array = new Object;
var js_array = new Array(10);
var sparse_js_array = [];
sparse_js_array.length = 200001;
init_array(object_array);
init_array(js_array);
init_sparse_array(sparse_object_array);
init_sparse_array(sparse_js_array);
store(object_array, 1, 256);
store(js_array, 1, 256);
store(sparse_object_array, 1, 256);
store(sparse_js_array, 1, 256);
return store;
}
var object_array = new Object;
var sparse_object_array = new Object;
var js_array = new Array(10);
var sparse_js_array = %NormalizeElements([]);
sparse_js_array.length = 200001;
assertTrue(%HasDictionaryElements(sparse_js_array));
init_array(object_array);
init_array(js_array);
init_sparse_array(sparse_object_array);
init_sparse_array(sparse_js_array);
store = make_polymorphic_store_function();
store(object_array, 2, 257);
store = make_polymorphic_store_function();
store(js_array, 2, 257);
store = make_polymorphic_store_function();
store(sparse_object_array, 2, 257);
store = make_polymorphic_store_function();
store(sparse_js_array, 2, 257);
assertEquals(257, object_array[2]);
assertEquals(257, js_array[2]);
assertEquals(257, sparse_js_array[2]);
assertEquals(257, sparse_object_array[2]);
// Now try Crankshaft optimized polymorphic stores
store = make_polymorphic_store_function();
%OptimizeFunctionOnNextCall(store);
store(object_array, 3, 258);
store = make_polymorphic_store_function();
%OptimizeFunctionOnNextCall(store);
store(js_array, 3, 258);
store = make_polymorphic_store_function();
%OptimizeFunctionOnNextCall(store);
store(sparse_object_array, 3, 258);
store = make_polymorphic_store_function();
%OptimizeFunctionOnNextCall(store);
store(sparse_js_array, 3, 258);
assertEquals(258, object_array[3]);
assertEquals(258, js_array[3]);
assertEquals(258, sparse_js_array[3]);
assertEquals(258, sparse_object_array[3]);
}
testPolymorphicLoads();
testPolymorphicStores();