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// 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.
// Test dictionary -> double elements -> dictionary elements round trip
// Flags: --allow-natives-syntax --unbox-double-arrays --expose-gc
var large_array_size = 100000;
var approx_dict_to_elements_threshold = 70000;
var name = 0;
function expected_array_value(i) {
if ((i % 50) != 0) {
return i;
} else {
return i + 0.5;
}
}
function force_to_fast_double_array(a) {
a[large_array_size - 2] = 1;
for (var i= 0; i < approx_dict_to_elements_threshold; ++i ) {
a[i] = expected_array_value(i);
}
assertTrue(%HasFastDoubleElements(a));
}
function make_object_like_array(size) {
obj = new Object();
obj.length = size;
return obj;
}
function testOneArrayType(allocator) {
var large_array = new allocator(large_array_size);
force_to_fast_double_array(large_array);
var six = 6;
for (var i= 0; i < approx_dict_to_elements_threshold; i += 501 ) {
assertEquals(expected_array_value(i), large_array[i]);
}
// This function has a constant and won't get inlined.
function computed_6() {
return six;
}
// Multiple versions of the test function makes sure that IC/Crankshaft state
// doesn't get reused.
function test_various_loads(a, value_5, value_6, value_7) {
assertTrue(%HasFastDoubleElements(a));
assertEquals(value_5, a[5]);
assertEquals(value_6, a[6]);
assertEquals(value_6, a[computed_6()]); // Test non-constant key
assertEquals(value_7, a[7]);
assertEquals(undefined, a[large_array_size-1]);
assertEquals(undefined, a[-1]);
assertEquals(large_array_size, a.length);
assertTrue(%HasFastDoubleElements(a));
}
function test_various_loads2(a, value_5, value_6, value_7) {
assertTrue(%HasFastDoubleElements(a));
assertEquals(value_5, a[5]);
assertEquals(value_6, a[6]);
assertEquals(value_6, a[computed_6()]); // Test non-constant key
assertEquals(value_7, a[7]);
assertEquals(undefined, a[large_array_size-1]);
assertEquals(undefined, a[-1]);
assertEquals(large_array_size, a.length);
assertTrue(%HasFastDoubleElements(a));
}
function test_various_loads3(a, value_5, value_6, value_7) {
assertTrue(%HasFastDoubleElements(a));
assertEquals(value_5, a[5]);
assertEquals(value_6, a[6]);
assertEquals(value_6, a[computed_6()]); // Test non-constant key
assertEquals(value_7, a[7]);
assertEquals(undefined, a[large_array_size-1]);
assertEquals(undefined, a[-1]);
assertEquals(large_array_size, a.length);
assertTrue(%HasFastDoubleElements(a));
}
function test_various_loads4(a, value_5, value_6, value_7) {
assertTrue(%HasFastDoubleElements(a));
assertEquals(value_5, a[5]);
assertEquals(value_6, a[6]);
assertEquals(value_6, a[computed_6()]); // Test non-constant key
assertEquals(value_7, a[7]);
assertEquals(undefined, a[large_array_size-1]);
assertEquals(undefined, a[-1]);
assertEquals(large_array_size, a.length);
assertTrue(%HasFastDoubleElements(a));
}
function test_various_loads5(a, value_5, value_6, value_7) {
assertTrue(%HasFastDoubleElements(a));
assertEquals(value_5, a[5]);
assertEquals(value_6, a[6]);
assertEquals(value_6, a[computed_6()]); // Test non-constant key
assertEquals(value_7, a[7]);
assertEquals(undefined, a[large_array_size-1]);
assertEquals(undefined, a[-1]);
assertEquals(large_array_size, a.length);
assertTrue(%HasFastDoubleElements(a));
}
function test_various_loads6(a, value_5, value_6, value_7) {
assertTrue(%HasFastDoubleElements(a));
assertEquals(value_5, a[5]);
assertEquals(value_6, a[6]);
assertEquals(value_6, a[computed_6()]); // Test non-constant key
assertEquals(value_7, a[7]);
assertEquals(undefined, a[large_array_size-1]);
assertEquals(undefined, a[-1]);
assertEquals(large_array_size, a.length);
assertTrue(%HasFastDoubleElements(a));
}
function test_various_stores(a, value_5, value_6, value_7) {
assertTrue(%HasFastDoubleElements(a));
a[5] = value_5;
a[computed_6()] = value_6;
a[7] = value_7;
assertTrue(%HasFastDoubleElements(a));
}
// Test double and integer values
test_various_loads(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_loads(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_loads(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
%OptimizeFunctionOnNextCall(test_various_loads);
test_various_loads(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
// Test NaN values
test_various_stores(large_array, NaN, -NaN, expected_array_value(7));
test_various_loads2(large_array,
NaN,
-NaN,
expected_array_value(7));
test_various_loads2(large_array,
NaN,
-NaN,
expected_array_value(7));
test_various_loads2(large_array,
NaN,
-NaN,
expected_array_value(7));
%OptimizeFunctionOnNextCall(test_various_loads2);
test_various_loads2(large_array,
NaN,
-NaN,
expected_array_value(7));
// Test Infinity values
test_various_stores(large_array,
Infinity,
-Infinity,
expected_array_value(7));
test_various_loads3(large_array,
Infinity,
-Infinity,
expected_array_value(7));
test_various_loads3(large_array,
Infinity,
-Infinity,
expected_array_value(7));
test_various_loads3(large_array,
Infinity,
-Infinity,
expected_array_value(7));
%OptimizeFunctionOnNextCall(test_various_loads3);
test_various_loads3(large_array,
Infinity,
-Infinity,
expected_array_value(7));
// Test the hole for the default runtime implementation.
delete large_array[5];
delete large_array[6];
test_various_loads4(large_array,
undefined,
undefined,
expected_array_value(7));
// Test the keyed load IC implementation when the value is the hole.
test_various_stores(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_loads5(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_loads5(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
delete large_array[5];
delete large_array[6];
test_various_loads5(large_array,
undefined,
undefined,
expected_array_value(7));
test_various_loads5(large_array,
undefined,
undefined,
expected_array_value(7));
// Make sure Crankshaft code handles the hole correctly (bailout)
test_various_stores(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_loads6(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_loads6(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
%OptimizeFunctionOnNextCall(test_various_loads6);
test_various_loads6(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
delete large_array[5];
delete large_array[6];
test_various_loads6(large_array,
undefined,
undefined,
expected_array_value(7));
// Test stores for non-NaN.
%OptimizeFunctionOnNextCall(test_various_stores);
test_various_stores(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_stores(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
test_various_loads6(large_array,
expected_array_value(5),
expected_array_value(6),
expected_array_value(7));
// Test NaN behavior for stores.
test_various_stores(large_array,
NaN,
-NaN,
expected_array_value(7));
test_various_stores(large_array,
NaN,
-NaN,
expected_array_value(7));
test_various_loads6(large_array,
NaN,
-NaN,
expected_array_value(7));
// Test Infinity behavior for stores.
test_various_stores(large_array,
Infinity,
-Infinity,
expected_array_value(7));
test_various_stores(large_array,
Infinity,
-Infinity,
expected_array_value(7));
test_various_loads6(large_array,
Infinity,
-Infinity,
expected_array_value(7));
assertTrue(%GetOptimizationStatus(test_various_stores) != 2);
// Make sure that we haven't converted from fast double.
assertTrue(%HasFastDoubleElements(large_array));
}
testOneArrayType(make_object_like_array);
testOneArrayType(Array);
var large_array = new Array(large_array_size);
force_to_fast_double_array(large_array);
assertTrue(%HasFastDoubleElements(large_array));
// Cause the array to grow beyond it's JSArray length. This will double the
// size of the capacity and force the array into "slow" dictionary case.
large_array[5] = Infinity;
large_array[large_array_size+10001] = 50;
assertTrue(%HasDictionaryElements(large_array));
assertEquals(50, large_array[large_array_size+10001]);
assertEquals(large_array_size+10002, large_array.length);
assertEquals(Infinity, large_array[5]);
assertEquals(undefined, large_array[large_array_size-1]);
assertEquals(undefined, large_array[-1]);
assertEquals(large_array_size+10002, large_array.length);
// Test dictionary -> double elements -> fast elements.
var large_array2 = new Array(large_array_size);
force_to_fast_double_array(large_array2);
delete large_array2[5];
// Convert back to fast elements and make sure the contents of the array are
// unchanged.
large_array2[25] = new Object();
assertTrue(%HasFastElements(large_array2));
for (var i= 0; i < approx_dict_to_elements_threshold; i += 500 ) {
if (i != 25 && i != 5) {
assertEquals(expected_array_value(i), large_array2[i]);
}
}
assertEquals(undefined, large_array2[5]);
assertEquals(undefined, large_array2[large_array_size-1]);
assertEquals(undefined, large_array2[-1]);
assertEquals(large_array_size, large_array2.length);
// Make sure it's possible to change the array's length and that array is still
// intact after the resize.
var large_array3 = new Array(large_array_size);
force_to_fast_double_array(large_array3);
large_array3.length = 60000;
assertEquals(60000, large_array3.length);
assertEquals(undefined, large_array3[60000]);
assertTrue(%HasFastDoubleElements(large_array3));
assertEquals(expected_array_value(5), large_array3[5]);
assertEquals(expected_array_value(6), large_array3[6]);
assertEquals(expected_array_value(7), large_array3[7]);
assertEquals(expected_array_value(large_array3.length-1),
large_array3[large_array3.length-1]);
assertEquals(undefined, large_array3[large_array_size-1]);
assertEquals(undefined, large_array3[-1]);
gc();
for (var i= 0; i < large_array3.length; i += 501 ) {
assertEquals(expected_array_value(i), large_array3[i]);
}
large_array3.length = 25;
assertEquals(25, large_array3.length);
assertTrue(%HasFastDoubleElements(large_array3));
assertEquals(undefined, large_array3[25]);
assertEquals(expected_array_value(5), large_array3[5]);
assertEquals(expected_array_value(6), large_array3[6]);
assertEquals(expected_array_value(7), large_array3[7]);
assertEquals(expected_array_value(large_array3.length-1),
large_array3[large_array3.length-1]);
assertEquals(undefined, large_array3[large_array_size-1]);
assertEquals(undefined, large_array3[-1]);
gc();
for (var i= 0; i < large_array3.length; ++i) {
assertEquals(expected_array_value(i), large_array3[i]);
}
large_array3.length = 100;
assertEquals(100, large_array3.length);
large_array3[95] = 95;
assertTrue(%HasFastDoubleElements(large_array3));
assertEquals(undefined, large_array3[100]);
assertEquals(95, large_array3[95]);
assertEquals(expected_array_value(5), large_array3[5]);
assertEquals(expected_array_value(6), large_array3[6]);
assertEquals(expected_array_value(7), large_array3[7]);
assertEquals(undefined, large_array3[large_array3.length-1]);
assertEquals(undefined, large_array3[large_array_size-1]);
assertEquals(undefined, large_array3[-1]);
gc();
// Test apply on arrays backed by double elements.
function called_by_apply(arg0, arg1, arg2, arg3, arg4, arg5, arg6) {
assertEquals(expected_array_value(0), arg0);
assertEquals(NaN, arg1);
assertEquals(-NaN, arg2);
assertEquals(Infinity, arg3);
assertEquals(-Infinity, arg4);
assertEquals(expected_array_value(5), arg5);
}
large_array3[1] = NaN;
large_array3[2] = -NaN;
large_array3[3] = Infinity;
large_array3[4] = -Infinity;
function call_apply() {
assertTrue(%HasFastDoubleElements(large_array3));
called_by_apply.apply({}, large_array3);
}
call_apply();
call_apply();
call_apply();
%OptimizeFunctionOnNextCall(call_apply);
call_apply();
call_apply();
call_apply();
function test_for_in() {
// Due to previous tests, keys 0..25 and 95 should be present.
next_expected = 0;
assertTrue(%HasFastDoubleElements(large_array3));
for (x in large_array3) {
assertTrue(next_expected++ == x);
if (next_expected == 25) {
next_expected = 95;
}
}
assertTrue(next_expected == 96);
}
test_for_in();
test_for_in();
test_for_in();
%OptimizeFunctionOnNextCall(test_for_in);
test_for_in();
test_for_in();
test_for_in();
function test_get_property_names() {
names = %GetPropertyNames(large_array3);
property_name_count = 0;
for (x in names) { property_name_count++; };
assertEquals(26, property_name_count);
}
test_get_property_names();
test_get_property_names();
test_get_property_names();
// Test elements getters.
assertEquals(expected_array_value(10), large_array3[10]);
assertEquals(expected_array_value(-NaN), large_array3[2]);
large_array3.__defineGetter__("2", function(){
return expected_array_value(10);
});
function test_getter() {
assertEquals(expected_array_value(10), large_array3[10]);
assertEquals(expected_array_value(10), large_array3[2]);
}
test_getter();
test_getter();
test_getter();
%OptimizeFunctionOnNextCall(test_getter);
test_getter();
test_getter();
test_getter();
// Test element setters.
large_array4 = new Array(large_array_size);
force_to_fast_double_array(large_array4);
var setter_called = false;
assertEquals(expected_array_value(10), large_array4[10]);
assertEquals(expected_array_value(2), large_array4[2]);
large_array4.__defineSetter__("10", function(value){
setter_called = true;
});
function test_setter() {
setter_called = false;
large_array4[10] = 119;
assertTrue(setter_called);
assertEquals(undefined, large_array4[10]);
assertEquals(expected_array_value(2), large_array4[2]);
}
test_setter();
test_setter();
test_setter();
%OptimizeFunctionOnNextCall(test_setter);
test_setter();
test_setter();
test_setter();