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v8/test/mjsunit/array-natives-elements.js
Daniel Clifford b51053d89e Reland: [builtins] Implement Array.prototype.slice in Torque 
In the process:

- add volatile types for FastJSArray and remove the length_fast accessor
  from JSArray with the application of more rigorous typing.
- add micro benchmarks for testing all the interesting slice cases

Also update a few assorted places in .tq code to make them more
idiomatic.

The original version of this patch had an overly agressive assert that has
been loosened.

TBR=jgruber@chromium.org

Change-Id: I56870862f4b124d1b38372daa326182a526c874c
Reviewed-on: https://chromium-review.googlesource.com/c/1291375
Reviewed-by: Daniel Clifford <danno@chromium.org>
Commit-Queue: Daniel Clifford <danno@chromium.org>
Cr-Commit-Position: refs/heads/master@{#56829}
2018-10-19 21:27:19 +00:00

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// Copyright 2012 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
// IC and Crankshaft support for smi-only elements in dynamic array literals.
function get(foo) { return foo; } // Used to generate dynamic values.
// This code exists to eliminate the learning influence of AllocationSites
// on the following tests.
function make_array_string(literal) {
this.__sequence = this.__sequence + 1;
return "/* " + this.__sequence + " */ " + literal;
}
function make_array(literal) {
return eval(make_array_string(literal));
}
var __sequence = 0;
function array_natives_test() {
// Ensure small array literals start in specific element kind mode.
assertTrue(%HasSmiElements([]));
assertTrue(%HasSmiElements([1]));
assertTrue(%HasSmiElements([1,2]));
assertTrue(%HasDoubleElements([1.1]));
assertTrue(%HasDoubleElements([1.1,2]));
// Push
var a0 = make_array("[1, 2, 3]");
assertTrue(%HasSmiElements(a0));
assertEquals(4, a0.push(4));
assertTrue(%HasSmiElements(a0));
assertEquals(5, a0.push(1.3));
assertTrue(%HasDoubleElements(a0));
assertEquals(6, a0.push(1.5));
assertTrue(%HasDoubleElements(a0));
assertEquals(7, a0.push({}));
assertTrue(%HasObjectElements(a0));
assertEquals(8, a0.push({}));
assertTrue(%HasObjectElements(a0));
assertEquals([1,2,3,4,1.3,1.5,{},{}], a0);
// Concat
var a1;
a1 = [1,2,3].concat([]);
//assertTrue(%HasSmiElements(a1));
assertEquals([1,2,3], a1);
a1 = [1,2,3].concat([4,5,6]);
assertTrue(%HasSmiElements(a1));
assertEquals([1,2,3,4,5,6], a1);
a1 = [1,2,3].concat([4,5,6], [7,8,9]);
assertTrue(%HasSmiElements(a1));
assertEquals([1,2,3,4,5,6,7,8,9], a1);
a1 = [1.1,2,3].concat([]);
assertTrue(%HasDoubleElements(a1));
assertEquals([1.1,2,3], a1);
a1 = [1,2,3].concat([1.1, 2]);
assertTrue(%HasDoubleElements(a1));
assertEquals([1,2,3,1.1,2], a1);
a1 = [1.1,2,3].concat([1, 2]);
assertTrue(%HasDoubleElements(a1));
assertEquals([1.1,2,3,1,2], a1);
a1 = [1.1,2,3].concat([1.2, 2]);
assertTrue(%HasDoubleElements(a1));
assertEquals([1.1,2,3,1.2,2], a1);
a1 = [1,2,3].concat([{}]);
assertTrue(%HasObjectElements(a1));
assertEquals([1,2,3,{}], a1);
a1 = [1.1,2,3].concat([{}]);
assertTrue(%HasObjectElements(a1));
assertEquals([1.1,2,3,{}], a1);
a1 = [{}].concat([1,2,3]);
assertTrue(%HasObjectElements(a1));
assertEquals([{},1,2,3], a1);
a1 = [{}].concat([1.1,2,3]);
assertTrue(%HasObjectElements(a1));
assertEquals([{},1.1,2,3], a1);
// Slice
var a2 = [1,2,3];
assertTrue(%HasSmiElements(a2.slice()));
assertTrue(%HasSmiElements(a2.slice(1)));
assertTrue(%HasSmiElements(a2.slice(1, 2)));
assertEquals([1,2,3], a2.slice());
assertEquals([2,3], a2.slice(1));
assertEquals([2], a2.slice(1,2));
a2 = [1.1,2,3];
assertTrue(%HasDoubleElements(a2.slice()));
assertTrue(%HasDoubleElements(a2.slice(1)) ||
%HasSmiElements(a2.slice(1)));
assertTrue(%HasDoubleElements(a2.slice(1, 2)) ||
%HasSmiElements(a2.slice(1, 2)));
assertEquals([1.1,2,3], a2.slice());
assertEquals([2,3], a2.slice(1));
assertEquals([2], a2.slice(1,2));
a2 = [{},2,3];
assertTrue(%HasObjectElements(a2.slice()));
assertTrue(%HasObjectElements(a2.slice(1)) ||
%HasSmiElements(a2.slice(1)));
assertTrue(%HasObjectElements(a2.slice(1, 2)) ||
%HasSmiElements(a2.slice(1, 2)));
assertEquals([{},2,3], a2.slice());
assertEquals([2,3], a2.slice(1));
assertEquals([2], a2.slice(1,2));
// Splice
var a3 = [1,2,3];
var a3r;
a3r = a3.splice(0, 0);
assertTrue(%HasSmiElements(a3r));
assertTrue(%HasSmiElements(a3));
assertEquals([], a3r);
assertEquals([1, 2, 3], a3);
a3 = [1,2,3];
a3r = a3.splice(0, 1);
assertTrue(%HasSmiElements(a3r));
assertTrue(%HasSmiElements(a3));
assertEquals([1], a3r);
assertEquals([2, 3], a3);
a3 = [1,2,3];
a3r = a3.splice(0, 0, 2);
assertTrue(%HasSmiElements(a3r));
assertTrue(%HasSmiElements(a3));
assertEquals([], a3r);
assertEquals([2, 1, 2, 3], a3);
a3 = [1,2,3];
a3r = a3.splice(0, 1, 2);
assertTrue(%HasSmiElements(a3r));
assertTrue(%HasSmiElements(a3));
assertEquals([1], a3r);
assertEquals([2, 2, 3], a3);
a3 = [1.1,2,3];
a3r = a3.splice(0, 0);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([], a3r);
assertEquals([1.1, 2, 3], a3);
a3 = [1.1, 2, 3];
a3r = a3.splice(0, 1);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([1.1], a3r);
assertEquals([2, 3], a3);
a3 = [1.1, 2, 3];
a3r = a3.splice(0, 0, 2);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([], a3r);
assertEquals([2, 1.1, 2, 3], a3);
a3 = [1.1, 2, 3];
assertTrue(%HasDoubleElements(a3));
a3r = a3.splice(0, 1, 2);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([1.1], a3r);
assertEquals([2, 2, 3], a3);
a3 = [1.1,2,3];
a3r = a3.splice(0, 0, 2.1);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([], a3r);
assertEquals([2.1, 1.1, 2, 3], a3);
a3 = [1.1,2,3];
a3r = a3.splice(0, 1, 2.2);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([1.1], a3r);
assertEquals([2.2, 2, 3], a3);
a3 = [1,2,3];
a3r = a3.splice(0, 0, 2.1);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([], a3r);
assertEquals([2.1, 1, 2, 3], a3);
a3 = [1,2,3];
a3r = a3.splice(0, 1, 2.2);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([1], a3r);
assertEquals([2.2, 2, 3], a3);
a3 = [{},2,3];
a3r = a3.splice(0, 0);
assertTrue(%HasObjectElements(a3r));
assertTrue(%HasObjectElements(a3));
assertEquals([], a3r);
assertEquals([{}, 2, 3], a3);
a3 = [1,2,{}];
a3r = a3.splice(0, 1);
assertTrue(%HasObjectElements(a3r));
assertTrue(%HasObjectElements(a3));
assertEquals([1], a3r);
assertEquals([2, {}], a3);
a3 = [1,2,3];
a3r = a3.splice(0, 0, {});
assertTrue(%HasObjectElements(a3r));
assertTrue(%HasObjectElements(a3));
assertEquals([], a3r);
assertEquals([{}, 1, 2, 3], a3);
a3 = [1,2,3];
a3r = a3.splice(0, 1, {});
assertTrue(%HasObjectElements(a3r));
assertTrue(%HasObjectElements(a3));
assertEquals([1], a3r);
assertEquals([{}, 2, 3], a3);
a3 = [1.1,2,3];
a3r = a3.splice(0, 0, {});
assertTrue(%HasObjectElements(a3r));
assertTrue(%HasObjectElements(a3));
assertEquals([], a3r);
assertEquals([{}, 1.1, 2, 3], a3);
a3 = [1.1,2,3];
a3r = a3.splice(0, 1, {});
assertTrue(%HasObjectElements(a3r));
assertTrue(%HasObjectElements(a3));
assertEquals([1.1], a3r);
assertEquals([{}, 2, 3], a3);
a3 = [1.1, 2.2, 3.3];
a3r = a3.splice(2, 1);
assertTrue(%HasDoubleElements(a3r));
assertTrue(%HasDoubleElements(a3));
assertEquals([3.3], a3r);
//assertTrue(%HasDoubleElements(a3r));
assertEquals([1.1, 2.2], a3);
//assertTrue(%HasDoubleElements(a3r));
a3r = a3.splice(1, 1, 4.4, 5.5);
//assertTrue(%HasDoubleElements(a3r));
//assertTrue(%HasDoubleElements(a3));
assertEquals([2.2], a3r);
assertEquals([1.1, 4.4, 5.5], a3);
// Pop
var a4 = [1,2,3];
assertEquals(3, a4.pop());
assertEquals([1,2], a4);
//assertTrue(%HasSmiElements(a4));
a4 = [1.1,2,3];
assertEquals(3, a4.pop());
assertEquals([1.1,2], a4);
//assertTrue(%HasDoubleElements(a4));
a4 = [{},2,3];
assertEquals(3, a4.pop());
assertEquals([{},2], a4);
//assertTrue(%HasObjectElements(a4));
// Shift
var a4 = [1,2,3];
assertEquals(1, a4.shift());
assertEquals([2,3], a4);
//assertTrue(%HasSmiElements(a4));
a4 = [1.1,2,3];
assertEquals(1.1, a4.shift());
assertEquals([2,3], a4);
//assertTrue(%HasDoubleElements(a4));
a4 = [{},2,3];
assertEquals({}, a4.shift());
assertEquals([2,3], a4);
//assertTrue(%HasObjectElements(a4));
// Unshift
var a4 = [1,2,3];
assertEquals(4, a4.unshift(1));
assertTrue(%HasSmiElements(a4));
assertEquals([1,1,2,3], a4);
a4 = [1,2,3];
assertEquals(4, a4.unshift(1.1));
assertTrue(%HasDoubleElements(a4));
assertEquals([1.1,1,2,3], a4);
a4 = [1.1,2,3];
assertEquals(4, a4.unshift(1));
assertTrue(%HasDoubleElements(a4));
assertEquals([1,1.1,2,3], a4);
a4 = [{},2,3];
assertEquals(4, a4.unshift(1));
assertTrue(%HasObjectElements(a4));
assertEquals([1,{},2,3], a4);
a4 = [{},2,3];
assertEquals(4, a4.unshift(1.1));
assertTrue(%HasObjectElements(a4));
assertEquals([1.1,{},2,3], a4);
}
for (var i = 0; i < 3; i++) {
array_natives_test();
}
%OptimizeFunctionOnNextCall(array_natives_test);
array_natives_test();
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