0455aadbeb
Review URL: http://codereview.chromium.org/8002019 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9426 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
195 lines
8.0 KiB
JavaScript
195 lines
8.0 KiB
JavaScript
// 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
|
|
// Test element kind of objects
|
|
|
|
support_smi_only_arrays = %HasFastSmiOnlyElements([]);
|
|
|
|
var element_kind = {
|
|
fast_smi_only_elements : 0,
|
|
fast_elements : 1,
|
|
fast_double_elements : 2,
|
|
dictionary_elements : 3,
|
|
external_byte_elements : 4,
|
|
external_unsigned_byte_elements : 5,
|
|
external_short_elements : 6,
|
|
external_unsigned_short_elements : 7,
|
|
external_int_elements : 8,
|
|
external_unsigned_int_elements : 9,
|
|
external_float_elements : 10,
|
|
external_double_elements : 11,
|
|
external_pixel_elements : 12
|
|
}
|
|
|
|
// We expect an object to only be of one element kind.
|
|
function assertKind(expected, obj) {
|
|
if (support_smi_only_arrays) {
|
|
assertEquals(expected == element_kind.fast_smi_only_elements,
|
|
%HasFastSmiOnlyElements(obj));
|
|
assertEquals(expected == element_kind.fast_elements,
|
|
%HasFastElements(obj));
|
|
} else {
|
|
assertEquals(expected == element_kind.fast_elements ||
|
|
expected == element_kind.fast_smi_only_elements,
|
|
%HasFastElements(obj));
|
|
}
|
|
assertEquals(expected == element_kind.fast_double_elements,
|
|
%HasFastDoubleElements(obj));
|
|
assertEquals(expected == element_kind.dictionary_elements,
|
|
%HasDictionaryElements(obj));
|
|
assertEquals(expected == element_kind.external_byte_elements,
|
|
%HasExternalByteElements(obj));
|
|
assertEquals(expected == element_kind.external_unsigned_byte_elements,
|
|
%HasExternalUnsignedByteElements(obj));
|
|
assertEquals(expected == element_kind.external_short_elements,
|
|
%HasExternalShortElements(obj));
|
|
assertEquals(expected == element_kind.external_unsigned_short_elements,
|
|
%HasExternalUnsignedShortElements(obj));
|
|
assertEquals(expected == element_kind.external_int_elements,
|
|
%HasExternalIntElements(obj));
|
|
assertEquals(expected == element_kind.external_unsigned_int_elements,
|
|
%HasExternalUnsignedIntElements(obj));
|
|
assertEquals(expected == element_kind.external_float_elements,
|
|
%HasExternalFloatElements(obj));
|
|
assertEquals(expected == element_kind.external_double_elements,
|
|
%HasExternalDoubleElements(obj));
|
|
assertEquals(expected == element_kind.external_pixel_elements,
|
|
%HasExternalPixelElements(obj));
|
|
// every external kind is also an external array
|
|
assertEquals(expected >= element_kind.external_byte_elements,
|
|
%HasExternalArrayElements(obj));
|
|
}
|
|
|
|
var me = {};
|
|
assertKind(element_kind.fast_elements, me);
|
|
me.dance = 0xD15C0;
|
|
me.drink = 0xC0C0A;
|
|
assertKind(element_kind.fast_elements, me);
|
|
|
|
var too = [1,2,3];
|
|
assertKind(element_kind.fast_smi_only_elements, too);
|
|
too.dance = 0xD15C0;
|
|
too.drink = 0xC0C0A;
|
|
assertKind(element_kind.fast_smi_only_elements, too);
|
|
|
|
// Make sure the element kind transitions from smionly when a non-smi is stored.
|
|
var you = new Array();
|
|
assertKind(element_kind.fast_smi_only_elements, you);
|
|
for (var i = 0; i < 1337; i++) {
|
|
var val = i;
|
|
if (i == 1336) {
|
|
assertKind(element_kind.fast_smi_only_elements, you);
|
|
val = new Object();
|
|
}
|
|
you[i] = val;
|
|
}
|
|
assertKind(element_kind.fast_elements, you);
|
|
|
|
assertKind(element_kind.dictionary_elements, new Array(0xDECAF));
|
|
|
|
var fast_double_array = new Array(0xDECAF);
|
|
for (var i = 0; i < 0xDECAF; i++) fast_double_array[i] = i / 2;
|
|
assertKind(element_kind.fast_double_elements, fast_double_array);
|
|
|
|
assertKind(element_kind.external_byte_elements, new Int8Array(9001));
|
|
assertKind(element_kind.external_unsigned_byte_elements, new Uint8Array(007));
|
|
assertKind(element_kind.external_short_elements, new Int16Array(666));
|
|
assertKind(element_kind.external_unsigned_short_elements, new Uint16Array(42));
|
|
assertKind(element_kind.external_int_elements, new Int32Array(0xF));
|
|
assertKind(element_kind.external_unsigned_int_elements, new Uint32Array(23));
|
|
assertKind(element_kind.external_float_elements, new Float32Array(7));
|
|
assertKind(element_kind.external_double_elements, new Float64Array(0));
|
|
assertKind(element_kind.external_pixel_elements, new PixelArray(512));
|
|
|
|
// Crankshaft support for smi-only array elements.
|
|
function monomorphic(array) {
|
|
for (var i = 0; i < 3; i++) {
|
|
array[i] = i + 10;
|
|
}
|
|
assertKind(element_kind.fast_smi_only_elements, array);
|
|
for (var i = 0; i < 3; i++) {
|
|
var a = array[i];
|
|
assertEquals(i + 10, a);
|
|
}
|
|
}
|
|
var smi_only = [1, 2, 3];
|
|
for (var i = 0; i < 3; i++) monomorphic(smi_only);
|
|
%OptimizeFunctionOnNextCall(monomorphic);
|
|
monomorphic(smi_only);
|
|
function polymorphic(array, expected_kind) {
|
|
array[1] = 42;
|
|
assertKind(expected_kind, array);
|
|
var a = array[1];
|
|
assertEquals(42, a);
|
|
}
|
|
var smis = [1, 2, 3];
|
|
var strings = ["one", "two", "three"];
|
|
var doubles = [0, 0, 0]; doubles[0] = 1.5; doubles[1] = 2.5; doubles[2] = 3.5;
|
|
assertKind(support_smi_only_arrays
|
|
? element_kind.fast_double_elements
|
|
: element_kind.fast_elements,
|
|
doubles);
|
|
for (var i = 0; i < 3; i++) {
|
|
polymorphic(smis, element_kind.fast_smi_only_elements);
|
|
polymorphic(strings, element_kind.fast_elements);
|
|
polymorphic(doubles, support_smi_only_arrays
|
|
? element_kind.fast_double_elements
|
|
: element_kind.fast_elements);
|
|
}
|
|
%OptimizeFunctionOnNextCall(polymorphic);
|
|
polymorphic(smis, element_kind.fast_smi_only_elements);
|
|
polymorphic(strings, element_kind.fast_elements);
|
|
polymorphic(doubles, support_smi_only_arrays
|
|
? element_kind.fast_double_elements
|
|
: element_kind.fast_elements);
|
|
|
|
// Crankshaft support for smi-only elements in dynamic array literals.
|
|
function get(foo) { return foo; } // Used to generate dynamic values.
|
|
|
|
//function crankshaft_test(expected_kind) {
|
|
function crankshaft_test() {
|
|
var a = [get(1), get(2), get(3)];
|
|
assertKind(element_kind.fast_smi_only_elements, a);
|
|
var b = [get(1), get(2), get("three")];
|
|
assertKind(element_kind.fast_elements, b);
|
|
var c = [get(1), get(2), get(3.5)];
|
|
// The full code generator doesn't support conversion to fast_double_elements
|
|
// yet. Crankshaft does, but only with --smi-only-arrays support.
|
|
if ((%GetOptimizationStatus(crankshaft_test) & 1) &&
|
|
support_smi_only_arrays) {
|
|
assertKind(element_kind.fast_double_elements, c);
|
|
} else {
|
|
assertKind(element_kind.fast_elements, c);
|
|
}
|
|
}
|
|
for (var i = 0; i < 3; i++) {
|
|
crankshaft_test();
|
|
}
|
|
%OptimizeFunctionOnNextCall(crankshaft_test);
|
|
crankshaft_test();
|