Version 4.6.10.1 (cherry-pick)

test/mjsunit/harmony/simd.js

-// Copyright 2015 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: --harmony-simd --harmony-tostring  --harmony-reflect
-// Flags: --allow-natives-syntax --expose-natives-as natives --noalways-opt
-
-function lanesForType(typeName) {
-  // The lane count follows the first 'x' in the type name, which begins with
-  // 'float', 'int', or 'bool'.
-  return Number.parseInt(typeName[typeName.indexOf('x') + 1]);
-}
-
-
-function isValidSimdString(string, value, type, lanes) {
-  var simdFn = SIMD[type],
-      parseFn =
-          type.indexOf('float') === 0 ? Number.parseFloat : Number.parseInt,
-      indexOfOpenParen = string.indexOf('(');
-  // Check prefix for correct type name.
-  if (string.substr(0, indexOfOpenParen).toUpperCase() !== type.toUpperCase())
-    return false;
-  // Remove type name and open parenthesis.
-  string = string.substr(indexOfOpenParen + 1);
-  var laneStrings = string.split(',');
-  if (laneStrings.length !== lanes)
-    return false;
-  for (var i = 0; i < lanes; i++) {
-    var fromString = parseFn(laneStrings[i]),
-        fromValue = simdFn.extractLane(value, i);
-    if (Math.abs(fromString - fromValue) > Number.EPSILON)
-      return false;
-  }
-  return true;
-}
-
-
-// Test for structural equivalence.
-function areEquivalent(type, lanes, a, b) {
-  var simdFn = SIMD[type];
-  for (var i = 0; i < lanes; i++) {
-    if (simdFn.extractLane(a, i) !== simdFn.extractLane(b, i))
-      return false;
-  }
-  return true;
-}
-
-
-var sameValue = natives.$sameValue;
-var sameValueZero = natives.$sameValueZero;
-
-// Calls SameValue and SameValueZero and checks that their results match. Also
-// checks the internal SameValue checks using Object freeze and defineProperty.
-function sameValueBoth(a, b) {
-  var result = sameValue(a, b);
-  assertTrue(result === sameValueZero(a, b));
-  return result;
-}
-
-
-// Calls SameValue and SameValueZero and checks that their results don't match.
-function sameValueZeroOnly(a, b) {
-  var result = sameValueZero(a, b);
-  assertTrue(result && !sameValue(a, b));
-  return result;
-}
-
-
-// Tests for the global SIMD object.
-function TestSIMDObject() {
-  assertSame(typeof SIMD, 'object');
-  assertSame(SIMD.constructor, Object);
-  assertSame(Object.getPrototypeOf(SIMD), Object.prototype);
-  assertSame(SIMD + "", "[object SIMD]");
-}
-TestSIMDObject()
-
-// TestConstructor populates this with interesting values for the other tests.
-var values;
-
-// Test different forms of constructor calls. This test populates 'values' with
-// a variety of SIMD values as a side effect, which are used by other tests.
-function TestConstructor(type, lanes) {
-  var simdFn = SIMD[type];
-  assertFalse(Object === simdFn.prototype.constructor)
-  assertFalse(simdFn === Object.prototype.constructor)
-  assertSame(simdFn, simdFn.prototype.constructor)
-
-  values = []
-
-  // The constructor expects values for all lanes.
-  switch (type) {
-    case 'float32x4':
-      // The constructor expects values for all lanes.
-      assertThrows(function () { simdFn() }, TypeError)
-      assertThrows(function () { simdFn(0) }, TypeError)
-      assertThrows(function () { simdFn(0, 1) }, TypeError)
-      assertThrows(function () { simdFn(0, 1, 2) }, TypeError)
-
-      values.push(simdFn(1, 2, 3, 4))
-      values.push(simdFn(1, 2, 3, 4))       // test structural equivalence
-      values.push(simdFn(-0, NaN, 0, 0.5))
-      values.push(simdFn(-0, NaN, 0, 0.5))  // test structural equivalence
-      values.push(simdFn(3, 2, 1, 0))
-      values.push(simdFn(0, 0, 0, 0))
-      break
-  }
-  for (var i in values) {
-    assertSame(simdFn, values[i].__proto__.constructor)
-    assertSame(simdFn, Object(values[i]).__proto__.constructor)
-    assertSame(simdFn.prototype, values[i].__proto__)
-    assertSame(simdFn.prototype, Object(values[i]).__proto__)
-  }
-}
-
-
-function TestType(type, lanes) {
-  for (var i in values) {
-    assertEquals(type, typeof values[i])
-    assertTrue(typeof values[i] === type)
-    assertTrue(typeof Object(values[i]) === 'object')
-    assertEquals(null, %_ClassOf(values[i]))
-    assertEquals("Float32x4", %_ClassOf(Object(values[i])))
-  }
-}
-
-
-function TestPrototype(type, lanes) {
-  var simdFn = SIMD[type];
-  assertSame(Object.prototype, simdFn.prototype.__proto__)
-  for (var i in values) {
-    assertSame(simdFn.prototype, values[i].__proto__)
-    assertSame(simdFn.prototype, Object(values[i]).__proto__)
-  }
-}
-
-
-function TestValueOf(type, lanes) {
-  var simdFn = SIMD[type];
-  for (var i in values) {
-    assertTrue(values[i] === Object(values[i]).valueOf())
-    assertTrue(values[i] === values[i].valueOf())
-    assertTrue(simdFn.prototype.valueOf.call(Object(values[i])) === values[i])
-    assertTrue(simdFn.prototype.valueOf.call(values[i]) === values[i])
-  }
-}
-
-
-function TestGet(type, lanes) {
-  var simdFn = SIMD[type];
-  for (var i in values) {
-    assertEquals(undefined, values[i].a)
-    assertEquals(undefined, values[i]["a" + "b"])
-    assertEquals(undefined, values[i]["" + "1"])
-    assertEquals(undefined, values[i][42])
-  }
-}
-
-
-function TestToBoolean(type, lanes) {
-  for (var i in values) {
-    assertTrue(Boolean(Object(values[i])))
-    assertFalse(!Object(values[i]))
-    assertTrue(Boolean(values[i]).valueOf())
-    assertFalse(!values[i])
-    assertTrue(!!values[i])
-    assertTrue(values[i] && true)
-    assertFalse(!values[i] && false)
-    assertTrue(!values[i] || true)
-    assertEquals(1, values[i] ? 1 : 2)
-    assertEquals(2, !values[i] ? 1 : 2)
-    if (!values[i]) assertUnreachable();
-    if (values[i]) {} else assertUnreachable();
-  }
-}
-
-
-function TestToString(type, lanes) {
-  var simdFn = SIMD[type];
-  for (var i in values) {
-    assertEquals(values[i].toString(), String(values[i]))
-    assertTrue(isValidSimdString(values[i].toString(), values[i], type, lanes))
-    assertTrue(
-        isValidSimdString(Object(values[i]).toString(), values[i], type, lanes))
-    assertTrue(isValidSimdString(
-        simdFn.prototype.toString.call(values[i]), values[i], type, lanes))
-  }
-}
-
-
-function TestToNumber(type, lanes) {
-  for (var i in values) {
-    assertThrows(function() { Number(Object(values[i])) }, TypeError)
-    assertThrows(function() { +Object(values[i]) }, TypeError)
-    assertThrows(function() { Number(values[i]) }, TypeError)
-    assertThrows(function() { values[i] + 0 }, TypeError)
-  }
-}
-
-
-function TestEquality(type, lanes) {
-  // Every SIMD value should equal itself, and non-strictly equal its wrapper.
-  for (var i in values) {
-    assertSame(values[i], values[i])
-    assertEquals(values[i], values[i])
-    assertTrue(Object.is(values[i], values[i]))
-    assertTrue(values[i] === values[i])
-    assertTrue(values[i] == values[i])
-    assertFalse(values[i] === Object(values[i]))
-    assertFalse(Object(values[i]) === values[i])
-    assertFalse(values[i] == Object(values[i]))
-    assertFalse(Object(values[i]) == values[i])
-    assertTrue(values[i] === values[i].valueOf())
-    assertTrue(values[i].valueOf() === values[i])
-    assertTrue(values[i] == values[i].valueOf())
-    assertTrue(values[i].valueOf() == values[i])
-    assertFalse(Object(values[i]) === Object(values[i]))
-    assertEquals(Object(values[i]).valueOf(), Object(values[i]).valueOf())
-  }
-
-  // Test structural equivalence.
-  for (var i = 0; i < values.length; i++) {
-    for (var j = i + 1; j < values.length; j++) {
-      var a = values[i], b = values[j],
-          equivalent = areEquivalent(type, lanes, a, b);
-      assertSame(equivalent, a == b);
-      assertSame(equivalent, a === b);
-    }
-  }
-
-  // SIMD values should not be equal to any other kind of object.
-  var others = [347, 1.275, NaN, "string", null, undefined, {}, function() {}]
-  for (var i in values) {
-    for (var j in others) {
-      assertFalse(values[i] === others[j])
-      assertFalse(others[j] === values[i])
-      assertFalse(values[i] == others[j])
-      assertFalse(others[j] == values[i])
-    }
-  }
-}
-
-
-function TestSameValue(type, lanes) {
-  // SIMD value types.
-  // All lanes checked.
-  // TODO(bbudge): use loops to test lanes when replaceLane is defined.
-  assertTrue(sameValueBoth(SIMD.float32x4(1, 2, 3, 4),
-                           SIMD.float32x4(1, 2, 3, 4)));
-  assertFalse(sameValueBoth(SIMD.float32x4(1, 2, 3, 4),
-                            SIMD.float32x4(NaN, 2, 3, 4)));
-  assertFalse(sameValueBoth(SIMD.float32x4(1, 2, 3, 4),
-                            SIMD.float32x4(1, NaN, 3, 4)));
-  assertFalse(sameValueBoth(SIMD.float32x4(1, 2, 3, 4),
-                            SIMD.float32x4(1, 2, NaN, 4)));
-  assertFalse(sameValueBoth(SIMD.float32x4(1, 2, 3, 4),
-                            SIMD.float32x4(1, 2, 3, NaN)));
-  // Special values.
-  // TODO(bbudge): use loops to test lanes when replaceLane is defined.
-  assertTrue(sameValueBoth(SIMD.float32x4(NaN, 2, 3, 4),
-                           SIMD.float32x4(NaN, 2, 3, 4)));
-  assertTrue(sameValueBoth(SIMD.float32x4(+0, 2, 3, 4),
-                           SIMD.float32x4(+0, 2, 3, 4)));
-  assertTrue(sameValueBoth(SIMD.float32x4(-0, 2, 3, 4),
-                           SIMD.float32x4(-0, 2, 3, 4)));
-  assertTrue(sameValueZeroOnly(SIMD.float32x4(+0, 2, 3, 4),
-                               SIMD.float32x4(-0, 2, 3, 4)));
-  assertTrue(sameValueZeroOnly(SIMD.float32x4(-0, 2, 3, 4),
-                               SIMD.float32x4(+0, 2, 3, 4)));
-}
-
-
-function TestComparison(type, lanes) {
-  var a = values[0], b = values[1];
-
-  function lt() { a < b; }
-  function gt() { a > b; }
-  function le() { a <= b; }
-  function ge() { a >= b; }
-  function lt_same() { a < a; }
-  function gt_same() { a > a; }
-  function le_same() { a <= a; }
-  function ge_same() { a >= a; }
-
-  var throwFuncs = [lt, gt, le, ge, lt_same, gt_same, le_same, ge_same];
-
-  for (var f of throwFuncs) {
-    assertThrows(f, TypeError);
-    %OptimizeFunctionOnNextCall(f);
-    assertThrows(f, TypeError);
-    assertThrows(f, TypeError);
-  }
-}
-
-
-// Test SIMD value wrapping/boxing over non-builtins.
-function TestCall(type, lanes) {
-  var simdFn = SIMD[type];
-  simdFn.prototype.getThisProto = function () {
-    return Object.getPrototypeOf(this);
-  }
-  for (var i in values) {
-    assertTrue(values[i].getThisProto() === simdFn.prototype)
-  }
-}
-
-
-function TestAsSetKey(type, lanes, set) {
-  function test(set, key) {
-    assertFalse(set.has(key));
-    assertFalse(set.delete(key));
-    if (!(set instanceof WeakSet)) {
-      assertSame(set, set.add(key));
-      assertTrue(set.has(key));
-      assertTrue(set.delete(key));
-    } else {
-      // SIMD values can't be used as keys in WeakSets.
-      assertThrows(function() { set.add(key) });
-    }
-    assertFalse(set.has(key));
-    assertFalse(set.delete(key));
-    assertFalse(set.has(key));
-  }
-
-  for (var i in values) {
-    test(set, values[i]);
-  }
-}
-
-
-function TestAsMapKey(type, lanes, map) {
-  function test(map, key, value) {
-    assertFalse(map.has(key));
-    assertSame(undefined, map.get(key));
-    assertFalse(map.delete(key));
-    if (!(map instanceof WeakMap)) {
-      assertSame(map, map.set(key, value));
-      assertSame(value, map.get(key));
-      assertTrue(map.has(key));
-      assertTrue(map.delete(key));
-    } else {
-      // SIMD values can't be used as keys in WeakMaps.
-      assertThrows(function() { map.set(key, value) });
-    }
-    assertFalse(map.has(key));
-    assertSame(undefined, map.get(key));
-    assertFalse(map.delete(key));
-    assertFalse(map.has(key));
-    assertSame(undefined, map.get(key));
-  }
-
-  for (var i in values) {
-    test(map, values[i], {});
-  }
-}
-
-
-// Test SIMD type with Harmony reflect-apply.
-function TestReflectApply(type) {
-  function returnThis() { return this; }
-  function returnThisStrict() { 'use strict'; return this; }
-  function noop() {}
-  function noopStrict() { 'use strict'; }
-  var R = void 0;
-
-  for (var i in values) {
-    assertSame(SIMD[type].prototype,
-               Object.getPrototypeOf(
-                  Reflect.apply(returnThis, values[i], [])));
-    assertSame(values[i], Reflect.apply(returnThisStrict, values[i], []));
-
-    assertThrows(
-        function() { 'use strict'; Reflect.apply(values[i]); }, TypeError);
-    assertThrows(
-        function() { Reflect.apply(values[i]); }, TypeError);
-    assertThrows(
-        function() { Reflect.apply(noopStrict, R, values[i]); }, TypeError);
-    assertThrows(
-        function() { Reflect.apply(noop, R, values[i]); }, TypeError);
-  }
-}
-
-
-function TestSIMDTypes() {
-  var types = [ 'float32x4' ];
-  for (var i = 0; i < types.length; ++i) {
-    var type = types[i],
-        lanes = lanesForType(type);
-    TestConstructor(type, lanes);
-    TestType(type, lanes);
-    TestPrototype(type, lanes);
-    TestValueOf(type, lanes);
-    TestGet(type, lanes);
-    TestToBoolean(type, lanes);
-    TestToString(type, lanes);
-    TestToNumber(type, lanes);
-    TestEquality(type, lanes);
-    TestSameValue(type, lanes);
-    TestComparison(type, lanes);
-    TestCall(type, lanes);
-    TestAsSetKey(type, lanes, new Set);
-    TestAsSetKey(type, lanes, new WeakSet);
-    TestAsMapKey(type, lanes, new Map);
-    TestAsMapKey(type, lanes, new WeakMap);
-    TestReflectApply(type);
-  }
-}
-TestSIMDTypes();