v8/test/mjsunit/sealed-array-reduce.js
Z Nguyen-Huu 0df0c8e3bc Optimize array.reduce, array.reduceRight to sealed, frozen object
Use FastJSArrayForRead pattern.
Add test of array.reduce, array.reduceRight for non-extensible, sealed, frozen objects similar to mjsunit/array-reduce.js

~3x perf improvement in JSTests/ObjectFreeze micro-benchmark
Before:
ArrayReduce
ArrayReduce-Numbers(Score): 0.0740
ArrayReduceRight
ArrayReduceRight-Numbers(Score): 0.0767

After:
ArrayReduce
ArrayReduce-Numbers(Score): 0.249
ArrayReduceRight
ArrayReduceRight-Numbers(Score): 0.261


Bug: v8:6831
Change-Id: I98f54f010256993fcd05bb24be968fb2d0f5c966
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1656851
Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com>
Reviewed-by: Simon Zünd <szuend@chromium.org>
Reviewed-by: Toon Verwaest <verwaest@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62158}
2019-06-13 19:23:50 +00:00

1405 lines
37 KiB
JavaScript

// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --opt --no-always-opt
/**
* @fileoverview Test reduce and reduceRight
*/
function clone(v) {
// Shallow-copies arrays, returns everything else verbatim.
if (v instanceof Array) {
// Shallow-copy an array.
var newArray = new Array(v.length);
for (var i in v) {
newArray[i] = v[i];
}
return newArray;
}
return v;
}
// Creates a callback function for reduce/reduceRight that tests the number
// of arguments and otherwise behaves as "func", but which also
// records all calls in an array on the function (as arrays of arguments
// followed by result).
function makeRecorder(func, testName) {
var record = [];
var f = function recorder(a, b, i, s) {
assertEquals(4, arguments.length,
testName + "(number of arguments: " + arguments.length + ")");
assertEquals("number", typeof(i), testName + "(index must be number)");
assertEquals(s[i], b, testName + "(current argument is at index)");
if (record.length > 0) {
var prevRecord = record[record.length - 1];
var prevResult = prevRecord[prevRecord.length - 1];
assertEquals(prevResult, a,
testName + "(prev result -> current input)");
}
var args = [clone(a), clone(b), i, clone(s)];
var result = func.apply(this, arguments);
args.push(clone(result));
record.push(args);
return result;
};
f.record = record;
return f;
}
function testReduce(type,
testName,
expectedResult,
expectedCalls,
array,
combine,
init) {
var rec = makeRecorder(combine);
var result;
if (arguments.length > 6) {
result = array[type](rec, init);
} else {
result = array[type](rec);
}
var calls = rec.record;
assertEquals(expectedCalls.length, calls.length,
testName + " (number of calls)");
for (var i = 0; i < expectedCalls.length; i++) {
assertEquals(expectedCalls[i], calls[i],
testName + " (call " + (i + 1) + ")");
}
assertEquals(expectedResult, result, testName + " (result)");
}
function sum(a, b) { return Number(a) + Number(b); }
function prod(a, b) { return Number(a) * Number(b); }
function dec(a, b, i, arr) { return Number(a) + Number(b) * Math.pow(10, arr.length - i - 1); }
function accumulate(acc, elem, i) { acc[i] = elem; return acc; }
// ---- Test Reduce[Left]
var simpleArray = ['2',4,6];
Object.seal(simpleArray);
testReduce("reduce", "SimpleReduceSum", 12,
[[0, '2', 0, simpleArray, 2],
[2, 4, 1, simpleArray, 6],
[6, 6, 2, simpleArray, 12]],
simpleArray, sum, 0);
testReduce("reduce", "SimpleReduceProd", 48,
[[1, '2', 0, simpleArray, 2],
[2, 4, 1, simpleArray, 8],
[8, 6, 2, simpleArray, 48]],
simpleArray, prod, 1);
testReduce("reduce", "SimpleReduceDec", 246,
[[0, '2', 0, simpleArray, 200],
[200, 4, 1, simpleArray, 240],
[240, 6, 2, simpleArray, 246]],
simpleArray, dec, 0);
testReduce("reduce", "SimpleReduceAccumulate", simpleArray,
[[[], '2', 0, simpleArray, ['2']],
[['2'], 4, 1, simpleArray, ['2', 4]],
[['2', 4], 6, 2, simpleArray, simpleArray]],
simpleArray, accumulate, []);
var emptyArray = [];
Object.seal(emptyArray);
testReduce("reduce", "EmptyReduceSum", 0, [], emptyArray, sum, 0);
testReduce("reduce", "EmptyReduceProd", 1, [], emptyArray, prod, 1);
testReduce("reduce", "EmptyReduceDec", 0, [], emptyArray, dec, 0);
testReduce("reduce", "EmptyReduceAccumulate", [], [], emptyArray, accumulate, []);
testReduce("reduce", "EmptyReduceSumNoInit", 0, emptyArray, [0], sum);
testReduce("reduce", "EmptyReduceProdNoInit", 1, emptyArray, [1], prod);
testReduce("reduce", "EmptyReduceDecNoInit", 0, emptyArray, [0], dec);
testReduce("reduce", "EmptyReduceAccumulateNoInit", [], emptyArray, [[]], accumulate);
var simpleSparseArray = [,,,'2',,4,,6,,];
Object.seal(simpleSparseArray);
testReduce("reduce", "SimpleSparseReduceSum", 12,
[[0, '2', 3, simpleSparseArray, 2],
[2, 4, 5, simpleSparseArray, 6],
[6, 6, 7, simpleSparseArray, 12]],
simpleSparseArray, sum, 0);
testReduce("reduce", "SimpleSparseReduceProd", 48,
[[1, '2', 3, simpleSparseArray, 2],
[2, 4, 5, simpleSparseArray, 8],
[8, 6, 7, simpleSparseArray, 48]],
simpleSparseArray, prod, 1);
testReduce("reduce", "SimpleSparseReduceDec", 204060,
[[0, '2', 3, simpleSparseArray, 200000],
[200000, 4, 5, simpleSparseArray, 204000],
[204000, 6, 7, simpleSparseArray, 204060]],
simpleSparseArray, dec, 0);
testReduce("reduce", "SimpleSparseReduceAccumulate", [,,,'2',,4,,6],
[[[], '2', 3, simpleSparseArray, [,,,'2']],
[[,,,'2'], 4, 5, simpleSparseArray, [,,,'2',,4]],
[[,,,'2',,4], 6, 7, simpleSparseArray, [,,,'2',,4,,6]]],
simpleSparseArray, accumulate, []);
testReduce("reduce", "EmptySparseReduceSumNoInit", 0, [], [,,0,,], sum);
testReduce("reduce", "EmptySparseReduceProdNoInit", 1, [], [,,1,,], prod);
testReduce("reduce", "EmptySparseReduceDecNoInit", 0, [], [,,0,,], dec);
testReduce("reduce", "EmptySparseReduceAccumulateNoInit",
[], [], [,,[],,], accumulate);
var verySparseArray = [];
verySparseArray.length = 10000;
verySparseArray[2000] = '2';
verySparseArray[5000] = 4;
verySparseArray[9000] = 6;
var verySparseSlice2 = verySparseArray.slice(0, 2001);
var verySparseSlice4 = verySparseArray.slice(0, 5001);
var verySparseSlice6 = verySparseArray.slice(0, 9001);
Object.seal(verySparseArray);
testReduce("reduce", "VerySparseReduceSum", 12,
[[0, '2', 2000, verySparseArray, 2],
[2, 4, 5000, verySparseArray, 6],
[6, 6, 9000, verySparseArray, 12]],
verySparseArray, sum, 0);
testReduce("reduce", "VerySparseReduceProd", 48,
[[1, '2', 2000, verySparseArray, 2],
[2, 4, 5000, verySparseArray, 8],
[8, 6, 9000, verySparseArray, 48]],
verySparseArray, prod, 1);
testReduce("reduce", "VerySparseReduceDec", Infinity,
[[0, '2', 2000, verySparseArray, Infinity],
[Infinity, 4, 5000, verySparseArray, Infinity],
[Infinity, 6, 9000, verySparseArray, Infinity]],
verySparseArray, dec, 0);
testReduce("reduce", "VerySparseReduceAccumulate",
verySparseSlice6,
[[[], '2', 2000, verySparseArray, verySparseSlice2],
[verySparseSlice2, 4, 5000, verySparseArray, verySparseSlice4],
[verySparseSlice4, 6, 9000, verySparseArray, verySparseSlice6]],
verySparseArray, accumulate, []);
testReduce("reduce", "VerySparseReduceSumNoInit", 12,
[['2', 4, 5000, verySparseArray, 6],
[6, 6, 9000, verySparseArray, 12]],
verySparseArray, sum);
testReduce("reduce", "VerySparseReduceProdNoInit", 48,
[['2', 4, 5000, verySparseArray, 8],
[8, 6, 9000, verySparseArray, 48]],
verySparseArray, prod);
testReduce("reduce", "VerySparseReduceDecNoInit", Infinity,
[['2', 4, 5000, verySparseArray, Infinity],
[Infinity, 6, 9000, verySparseArray, Infinity]],
verySparseArray, dec);
testReduce("reduce", "SimpleSparseReduceAccumulateNoInit",
'2',
[['2', 4, 5000, verySparseArray, '2'],
['2', 6, 9000, verySparseArray, '2']],
verySparseArray, accumulate);
// ---- Test ReduceRight
testReduce("reduceRight", "SimpleReduceRightSum", 12,
[[0, 6, 2, simpleArray, 6],
[6, 4, 1, simpleArray, 10],
[10, '2', 0, simpleArray, 12]],
simpleArray, sum, 0);
testReduce("reduceRight", "SimpleReduceRightProd", 48,
[[1, 6, 2, simpleArray, 6],
[6, 4, 1, simpleArray, 24],
[24, '2', 0, simpleArray, 48]],
simpleArray, prod, 1);
testReduce("reduceRight", "SimpleReduceRightDec", 246,
[[0, 6, 2, simpleArray, 6],
[6, 4, 1, simpleArray, 46],
[46, '2', 0, simpleArray, 246]],
simpleArray, dec, 0);
testReduce("reduceRight", "SimpleReduceRightAccumulate", simpleArray,
[[[], 6, 2, simpleArray, [,,6]],
[[,,6], 4, 1, simpleArray, [,4,6]],
[[,4,6], '2', 0, simpleArray, simpleArray]],
simpleArray, accumulate, []);
testReduce("reduceRight", "EmptyReduceRightSum", 0, [], [], sum, 0);
testReduce("reduceRight", "EmptyReduceRightProd", 1, [], [], prod, 1);
testReduce("reduceRight", "EmptyReduceRightDec", 0, [], [], dec, 0);
testReduce("reduceRight", "EmptyReduceRightAccumulate", [],
[], [], accumulate, []);
testReduce("reduceRight", "EmptyReduceRightSumNoInit", 0, [], [0], sum);
testReduce("reduceRight", "EmptyReduceRightProdNoInit", 1, [], [1], prod);
testReduce("reduceRight", "EmptyReduceRightDecNoInit", 0, [], [0], dec);
testReduce("reduceRight", "EmptyReduceRightAccumulateNoInit",
[], [], [[]], accumulate);
testReduce("reduceRight", "SimpleSparseReduceRightSum", 12,
[[0, 6, 7, simpleSparseArray, 6],
[6, 4, 5, simpleSparseArray, 10],
[10, '2', 3, simpleSparseArray, 12]],
simpleSparseArray, sum, 0);
testReduce("reduceRight", "SimpleSparseReduceRightProd", 48,
[[1, 6, 7, simpleSparseArray, 6],
[6, 4, 5, simpleSparseArray, 24],
[24, '2', 3, simpleSparseArray, 48]],
simpleSparseArray, prod, 1);
testReduce("reduceRight", "SimpleSparseReduceRightDec", 204060,
[[0, 6, 7, simpleSparseArray, 60],
[60, 4, 5, simpleSparseArray, 4060],
[4060, '2', 3, simpleSparseArray, 204060]],
simpleSparseArray, dec, 0);
testReduce("reduceRight", "SimpleSparseReduceRightAccumulate", [,,,'2',,4,,6],
[[[], 6, 7, simpleSparseArray, [,,,,,,,6]],
[[,,,,,,,6], 4, 5, simpleSparseArray, [,,,,,4,,6]],
[[,,,,,4,,6], '2', 3, simpleSparseArray, [,,,'2',,4,,6]]],
simpleSparseArray, accumulate, []);
testReduce("reduceRight", "EmptySparseReduceRightSumNoInit",
0, [], [,,0,,], sum);
testReduce("reduceRight", "EmptySparseReduceRightProdNoInit",
1, [], [,,1,,], prod);
testReduce("reduceRight", "EmptySparseReduceRightDecNoInit",
0, [], [,,0,,], dec);
testReduce("reduceRight", "EmptySparseReduceRightAccumulateNoInit",
[], [], [,,[],,], accumulate);
var verySparseSuffix6 = [];
verySparseSuffix6[9000] = 6;
var verySparseSuffix4 = [];
verySparseSuffix4[5000] = 4;
verySparseSuffix4[9000] = 6;
var verySparseSuffix2 = verySparseSlice6;
testReduce("reduceRight", "VerySparseReduceRightSum", 12,
[[0, 6, 9000, verySparseArray, 6],
[6, 4, 5000, verySparseArray, 10],
[10, '2', 2000, verySparseArray, 12]],
verySparseArray, sum, 0);
testReduce("reduceRight", "VerySparseReduceRightProd", 48,
[[1, 6, 9000, verySparseArray, 6],
[6, 4, 5000, verySparseArray, 24],
[24, '2', 2000, verySparseArray, 48]],
verySparseArray, prod, 1);
testReduce("reduceRight", "VerySparseReduceRightDec", Infinity,
[[0, 6, 9000, verySparseArray, Infinity],
[Infinity, 4, 5000, verySparseArray, Infinity],
[Infinity, '2', 2000, verySparseArray, Infinity]],
verySparseArray, dec, 0);
testReduce("reduceRight", "VerySparseReduceRightAccumulate",
verySparseSuffix2,
[[[], 6, 9000, verySparseArray, verySparseSuffix6],
[verySparseSuffix6, 4, 5000, verySparseArray, verySparseSuffix4],
[verySparseSuffix4, '2', 2000, verySparseArray, verySparseSuffix2]],
verySparseArray, accumulate, []);
testReduce("reduceRight", "VerySparseReduceRightSumNoInit", 12,
[[6, 4, 5000, verySparseArray, 10],
[10, '2', 2000, verySparseArray, 12]],
verySparseArray, sum);
testReduce("reduceRight", "VerySparseReduceRightProdNoInit", 48,
[[6, 4, 5000, verySparseArray, 24],
[24, '2', 2000, verySparseArray, 48]],
verySparseArray, prod);
testReduce("reduceRight", "VerySparseReduceRightDecNoInit", Infinity,
[[6, 4, 5000, verySparseArray, Infinity],
[Infinity, '2', 2000, verySparseArray, Infinity]],
verySparseArray, dec);
testReduce("reduceRight", "SimpleSparseReduceRightAccumulateNoInit",
6,
[[6, 4, 5000, verySparseArray, 6],
[6, '2', 2000, verySparseArray, 6]],
verySparseArray, accumulate);
// undefined is an element
var undefArray = [,,undefined,,undefined,,];
Object.seal(undefArray);
testReduce("reduce", "SparseUndefinedReduceAdd", NaN,
[[0, undefined, 2, undefArray, NaN],
[NaN, undefined, 4, undefArray, NaN],
],
undefArray, sum, 0);
testReduce("reduceRight", "SparseUndefinedReduceRightAdd", NaN,
[[0, undefined, 4, undefArray, NaN],
[NaN, undefined, 2, undefArray, NaN],
], undefArray, sum, 0);
testReduce("reduce", "SparseUndefinedReduceAddNoInit", NaN,
[[undefined, undefined, 4, undefArray, NaN],
], undefArray, sum);
testReduce("reduceRight", "SparseUndefinedReduceRightAddNoInit", NaN,
[[undefined, undefined, 2, undefArray, NaN],
], undefArray, sum);
// Ignore non-array properties:
var arrayPlus = [1,'2',,3];
arrayPlus[-1] = NaN;
arrayPlus[Math.pow(2,32)] = NaN;
arrayPlus[NaN] = NaN;
arrayPlus["00"] = NaN;
arrayPlus["02"] = NaN;
arrayPlus["-0"] = NaN;
Object.seal(arrayPlus);
testReduce("reduce", "ArrayWithNonElementPropertiesReduce", 6,
[[0, 1, 0, arrayPlus, 1],
[1, '2', 1, arrayPlus, 3],
[3, 3, 3, arrayPlus, 6],
], arrayPlus, sum, 0);
testReduce("reduceRight", "ArrayWithNonElementPropertiesReduceRight", 6,
[[0, 3, 3, arrayPlus, 3],
[3, '2', 1, arrayPlus, 5],
[5, 1, 0, arrayPlus, 6],
], arrayPlus, sum, 0);
// Test passing undefined as initial value (to test missing parameter
// detection).
Object.seal(['1']).reduce((a, b) => { assertEquals(a, undefined); assertEquals(b, '1') },
undefined);
Object.seal(['1', 2]).reduce((a, b) => { assertEquals(a, '1'); assertEquals(b, 2); });
Object.seal(['1']).reduce((a, b) => { assertTrue(false); });
// Test error conditions:
var exception = false;
try {
Object.seal(['1']).reduce("not a function");
} catch (e) {
exception = true;
assertTrue(e instanceof TypeError,
"reduce callback not a function not throwing TypeError");
assertTrue(e.message.indexOf(" is not a function") >= 0,
"reduce non function TypeError type");
}
assertTrue(exception);
exception = false;
try {
Object.seal(['1']).reduceRight("not a function");
} catch (e) {
exception = true;
assertTrue(e instanceof TypeError,
"reduceRight callback not a function not throwing TypeError");
assertTrue(e.message.indexOf(" is not a function") >= 0,
"reduceRight non function TypeError type");
}
assertTrue(exception);
exception = false;
try {
Object.seal([]).reduce(sum);
} catch (e) {
exception = true;
assertTrue(e instanceof TypeError,
"reduce no initial value not throwing TypeError");
assertEquals("Reduce of empty array with no initial value", e.message,
"reduce no initial TypeError type");
}
assertTrue(exception);
exception = false;
try {
Object.seal([]).reduceRight(sum);
} catch (e) {
exception = true;
assertTrue(e instanceof TypeError,
"reduceRight no initial value not throwing TypeError");
assertEquals("Reduce of empty array with no initial value", e.message,
"reduceRight no initial TypeError type");
}
assertTrue(exception);
exception = false;
try {
Object.seal([,,,]).reduce(sum);
} catch (e) {
exception = true;
assertTrue(e instanceof TypeError,
"reduce sparse no initial value not throwing TypeError");
assertEquals("Reduce of empty array with no initial value", e.message,
"reduce no initial TypeError type");
}
assertTrue(exception);
exception = false;
try {
Object.seal([,,,]).reduceRight(sum);
} catch (e) {
exception = true;
assertTrue(e instanceof TypeError,
"reduceRight sparse no initial value not throwing TypeError");
assertEquals("Reduce of empty array with no initial value", e.message,
"reduceRight no initial TypeError type");
}
assertTrue(exception);
// Array changing length
function extender(a, b, i, s) {
s[s.length] = s.length;
return Number(a) + Number(b);
}
var arr = [1, '2', 3, 4];
Object.seal(arr);
testReduce("reduce", "ArrayManipulationExtender", 10,
[[0, 1, 0, [1, '2', 3, 4], 1],
[1, '2', 1, [1, '2', 3, 4], 3],
[3, 3, 2, [1, '2', 3, 4], 6],
[6, 4, 3, [1, '2', 3, 4], 10],
], arr, extender, 0);
var arr = [];
Object.defineProperty(arr, "0", { get: function() { delete this[0] },
configurable: true });
assertEquals(undefined, Object.seal(arr).reduce(function(val) { return val }));
var arr = [];
Object.defineProperty(arr, "0", { get: function() { delete this[0] },
configurable: true});
assertEquals(undefined, Object.seal(arr).reduceRight(function(val) { return val }));
(function ReduceRightMaxIndex() {
const kMaxIndex = 0xffffffff-1;
let array = [];
array[kMaxIndex-2] = 'value-2';
array[kMaxIndex-1] = 'value-1';
// Use the maximum array index possible.
array[kMaxIndex] = 'value';
// Add the next index which is a normal property and thus will not show up.
array[kMaxIndex+1] = 'normal property';
assertThrowsEquals( () => {
Object.seal(array).reduceRight((sum, value) => {
assertEquals('initial', sum);
assertEquals('value', value);
// Throw at this point as we would very slowly loop down from kMaxIndex.
throw 'do not continue';
}, 'initial')
}, 'do not continue');
})();
(function OptimizedReduce() {
let f = (a,current) => a + Number(current);
let g = function(a) {
return a.reduce(f);
};
%PrepareFunctionForOptimization(g);
let a = [1,'2',3,4,5,6,7,8,9,10];
Object.seal(a);
g(a); g(a);
let total = g(a);
%OptimizeFunctionOnNextCall(g);
assertEquals(total, g(a));
assertOptimized(g);
})();
(function OptimizedReduceEmpty() {
let f = (a,current) => a + Number(current);
let g = function(a) {
return a.reduce(f);
};
%PrepareFunctionForOptimization(g);
let a = [1,'2',3,4,5,6,7,8,9,10];
Object.seal(a);
g(a); g(a); g(a);
%OptimizeFunctionOnNextCall(g);
g(a);
assertOptimized(g);
assertThrows(() => g([]));
assertUnoptimized(g);
})();
(function OptimizedReduceLazyDeopt() {
let deopt = false;
let f = (a,current) => { if (deopt) %DeoptimizeNow(); return a + Number(current); };
let g = function(a) {
return a.reduce(f);
};
%PrepareFunctionForOptimization(g);
let a = [1,'2',3,4,5,6,7,8,9,10];
Object.seal(a);
g(a); g(a);
let total = g(a);
%OptimizeFunctionOnNextCall(g);
g(a);
assertOptimized(g);
deopt = true;
assertEquals(total, g(a));
assertOptimized(g);
})();
(function OptimizedReduceLazyDeoptMiddleOfIteration() {
let deopt = false;
let f = (a,current) => {
if (current == 6 && deopt) %DeoptimizeNow();
return a + Number(current);
};
let g = function(a) {
return a.reduce(f);
};
%PrepareFunctionForOptimization(g);
let a = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(a);
g(a); g(a);
let total = g(a);
%OptimizeFunctionOnNextCall(g);
g(a);
assertOptimized(g);
deopt = true;
assertEquals(total, g(a));
assertOptimized(g);
})();
(function OptimizedReduceEagerDeoptMiddleOfIteration() {
let deopt = false;
let array = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(array);
let f = (a,current) => {
if (current == 6 && deopt) {array[0] = 1.5; }
return a + Number(current);
};
let g = function() {
return array.reduce(f);
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertOptimized(g);
deopt = true;
g();
assertOptimized(g);
deopt = false;
array = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(array);
%OptimizeFunctionOnNextCall(g);
g();
assertOptimized(g);
deopt = true;
assertEquals(total, g());
assertOptimized(g);
})();
(function OptimizedReduceEagerDeoptMiddleOfIterationHoley() {
let deopt = false;
let array = [, ,11,'22',,33,45,56,,6,77,84,93,101,];
Object.seal(array);
let f = (a,current) => {
if (current == 6 && deopt) {array[0] = 1.5; }
return a + Number(current);
};
let g = function() {
return array.reduce(f);
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertOptimized(g);
deopt = true;
g();
assertOptimized(g);
deopt = false;
array = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(array);
%OptimizeFunctionOnNextCall(g);
g();
assertUnoptimized(g);
deopt = true;
assertEquals(total, g());
assertUnoptimized(g);
})();
(function TriggerReduceRightPreLoopDeopt() {
function f(a) {
a.reduceRight((x) => { return Number(x) + 1 });
};
%PrepareFunctionForOptimization(f);
var arr = Object.seal([1, '2', ]);
f(arr);
f(arr);
%OptimizeFunctionOnNextCall(f);
assertThrows(() => f([]), TypeError);
assertUnoptimized(f);
})();
(function OptimizedReduceRightEagerDeoptMiddleOfIterationHoley() {
let deopt = false;
let array = [, ,11,'22',,33,45,56,,6,77,84,93,101,];
Object.seal(array);
let f = (a,current) => {
if (current == 6 && deopt) {array[array.length-1] = 1.5; }
return a + Number(current);
};
let g = function() {
return array.reduceRight(f);
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertOptimized(g);
deopt = true;
g();
assertOptimized(g);
deopt = false;
array = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(array);
%OptimizeFunctionOnNextCall(g);
g();
assertUnoptimized(g);
deopt = true;
assertEquals(total, g());
assertUnoptimized(g);
})();
(function ReduceCatch() {
let f = (a,current) => {
return a + current;
};
let g = function() {
try {
return Object.seal(array).reduce(f);
} catch (e) {
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
g();
assertEquals(total, g());
assertOptimized(g);
})();
(function ReduceThrow() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduce(f);
} catch (e) {
return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceThrow() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
%NeverOptimizeFunction(f);
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduce(f);
} catch (e) {
return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceFinally() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduce(f);
} catch (e) {
} finally {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceFinallyNoInline() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
%NeverOptimizeFunction(f);
let array = [1, '2', 3];
Object.seal(array);
let g = function() {
try {
return array.reduce(f);
} catch (e) {
} finally {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceNonCallableOpt() {
let done = false;
let f = (a, current) => {
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
return array.reduce(f);
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g(); g();
assertEquals(6, g());
assertOptimized(g);
f = null;
assertThrows(() => g());
assertOptimized(g);
})();
(function ReduceCatchInlineDeopt() {
let done = false;
let f = (a, current) => {
if (done) {
%DeoptimizeNow();
throw "x";
}
return a + Number(current);
};
let array = [1,2,3];
Object.seal(array);
let g = function() {
try {
return array.reduce(f);
} catch (e) {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceFinallyInlineDeopt() {
let done = false;
let f = (a, current) => {
if (done) {
%DeoptimizeNow();
throw "x";
}
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduce(f);
} catch (e) {
} finally {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function OptimizedReduceRight() {
let count = 0;
let f = (a,current,i) => a + Number(current) * ++count;
let g = function(a) {
count = 0;
return a.reduceRight(f);
};
%PrepareFunctionForOptimization(g);
let a = [1,'2',3,4,5,6,7,8,9,10];
Object.seal(a);
g(a); g(a);
let total = g(a);
%OptimizeFunctionOnNextCall(g);
assertEquals(total, g(a));
assertOptimized(g);
})();
(function OptimizedReduceEmpty() {
let count = 0;
let f = (a,current,i) => a + Number(current) * ++count;
let g = function(a) {
count = 0;
return a.reduceRight(f);
};
%PrepareFunctionForOptimization(g);
let a = [1,'2',3,4,5,6,7,8,9,10];
Object.seal(a);
g(a); g(a); g(a);
%OptimizeFunctionOnNextCall(g);
g(a);
assertOptimized(g);
assertThrows(() => g([]));
assertUnoptimized(g);
})();
(function OptimizedReduceLazyDeopt() {
let deopt = false;
let f = (a,current) => { if (deopt) %DeoptimizeNow(); return a + Number(current); };
let g = function(a) {
return a.reduceRight(f);
};
%PrepareFunctionForOptimization(g);
let a = [1,'2',3,4,5,6,7,8,9,10];
Object.seal(a);
g(a); g(a);
let total = g(a);
%OptimizeFunctionOnNextCall(g);
g(a);
deopt = true;
assertEquals(total, g(a));
assertOptimized(g);
})();
(function OptimizedReduceLazyDeoptMiddleOfIteration() {
let deopt = false;
let f = (a,current) => {
if (current == 6 && deopt) %DeoptimizeNow();
return a + Number(current);
};
let g = function(a) {
return a.reduceRight(f);
};
%PrepareFunctionForOptimization(g);
let a = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(a);
g(a); g(a);
let total = g(a);
%OptimizeFunctionOnNextCall(g);
g(a);
deopt = true;
assertEquals(total, g(a));
assertOptimized(g);
})();
(function OptimizedReduceEagerDeoptMiddleOfIteration() {
let deopt = false;
let array = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(array);
let f = (a,current) => {
if (current == 6 && deopt) {array[9] = 1.5; }
return a + Number(current);
};
let g = function() {
return array.reduceRight(f);
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertOptimized(g);
deopt = true;
g();
deopt = false;
array = [11,'22',33,45,56,6,77,84,93,101];
Object.seal(array);
%OptimizeFunctionOnNextCall(g);
g();
deopt = true;
assertEquals(total, g());
assertOptimized(g);
})();
(function ReduceCatch() {
let f = (a,current) => {
return a + Number(current);
};
let g = function() {
try {
return Object.seal(array).reduceRight(f);
} catch (e) {
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
g();
assertEquals(total, g());
assertOptimized(g);
})();
(function ReduceThrow() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduceRight(f);
} catch (e) {
return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
assertOptimized(g);
done = true;
assertEquals(null, g());
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceThrow() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
%NeverOptimizeFunction(f);
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduceRight(f);
} catch (e) {
return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceFinally() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
let array = [1, '2', 3];
Object.seal(array);
let g = function() {
try {
return array.reduceRight(f);
} catch (e) {
} finally {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceFinallyNoInline() {
let done = false;
let f = (a, current) => {
if (done) throw "x";
return a + Number(current);
};
%NeverOptimizeFunction(f);
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduceRight(f);
} catch (e) {
} finally {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
assertOptimized(g);
done = true;
assertEquals(null, g());
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceNonCallableOpt() {
let done = false;
let f = (a, current) => {
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
return array.reduceRight(f);
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g(); g();
assertEquals(6, g());
f = null;
assertThrows(() => g());
assertOptimized(g);
})();
(function ReduceCatchInlineDeopt() {
let done = false;
let f = (a, current) => {
if (done) {
%DeoptimizeNow();
throw "x";
}
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduceRight(f);
} catch (e) {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceFinallyInlineDeopt() {
let done = false;
let f = (a, current) => {
if (done) {
%DeoptimizeNow();
throw "x";
}
return a + Number(current);
};
let array = [1,'2',3];
Object.seal(array);
let g = function() {
try {
return array.reduceRight(f);
} catch (e) {
} finally {
if (done) return null;
}
};
%PrepareFunctionForOptimization(g);
g(); g();
let total = g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
done = false;
g(); g();
%OptimizeFunctionOnNextCall(g);
g();
assertEquals(6, g());
done = true;
assertEquals(null, g());
assertOptimized(g);
})();
(function ReduceHoleyArrayWithDefaultAccumulator() {
var holey = new Array(10);
Object.seal(holey);
function reduce(a) {
let callback = function(accumulator, currentValue) {
return currentValue;
};
return a.reduce(callback, 13);
};
%PrepareFunctionForOptimization(reduce);
assertEquals(13, reduce(holey));
assertEquals(13, reduce(holey));
assertEquals(13, reduce(holey));
%OptimizeFunctionOnNextCall(reduce);
assertEquals(13, reduce(holey));
assertOptimized(reduce);
})();
(function ReduceRightHoleyArrayWithDefaultAccumulator() {
var holey = new Array(10);
Object.seal(holey);
function reduce(a) {
let callback = function(accumulator, currentValue) {
return currentValue;
};
return a.reduceRight(callback, 13);
};
%PrepareFunctionForOptimization(reduce);
assertEquals(13, reduce(holey));
assertEquals(13, reduce(holey));
assertEquals(13, reduce(holey));
%OptimizeFunctionOnNextCall(reduce);
assertEquals(13, reduce(holey));
assertOptimized(reduce);
})();
(function ReduceHoleyArrayOneElementWithDefaultAccumulator() {
var holey = new Array(10);
holey[1] = '5';
Object.seal(holey);
function reduce(a) {
let callback = function(accumulator, currentValue) {
return Number(currentValue) + accumulator;
};
return a.reduce(callback, 13);
};
%PrepareFunctionForOptimization(reduce);
assertEquals(18, reduce(holey));
assertEquals(18, reduce(holey));
assertEquals(18, reduce(holey));
%OptimizeFunctionOnNextCall(reduce);
assertEquals(18, reduce(holey));
assertOptimized(reduce);
})();
(function ReduceRightHoleyArrayOneElementWithDefaultAccumulator() {
var holey = new Array(10);
holey[1] = '5';
Object.seal(holey);
function reduce(a) {
let callback = function(accumulator, currentValue) {
return Number(currentValue) + accumulator;
};
return a.reduceRight(callback, 13);
};
%PrepareFunctionForOptimization(reduce);
assertEquals(18, reduce(holey));
assertEquals(18, reduce(holey));
assertEquals(18, reduce(holey));
%OptimizeFunctionOnNextCall(reduce);
assertEquals(18, reduce(holey));
assertOptimized(reduce);
})();
(function ReduceMixedHoleyArrays() {
function r(a) {
return a.reduce((acc, i) => {acc[0]});
};
%PrepareFunctionForOptimization(r);
assertEquals(r(Object.seal([[0]])), [0]);
assertEquals(r(Object.seal([[0]])), [0]);
assertEquals(r(Object.seal([0,,])), 0);
%OptimizeFunctionOnNextCall(r);
assertEquals(r(Object.seal([,0,0])), undefined);
assertOptimized(r);
})();