getting some initial set of x86 intrinsics mapped to JS SIMD ops; update existing SIMD code to use updated JS SIMD API (SIMD.type.op instead of SIMD.op & SIMD.opu32; int32x4 instead of uint32x4); bug fix: right type of withX() for int32x4 initialization; bug fix: splat(0) instead of zero() for int32x4 initialization

1 files changed, 599 insertions, 432 deletions

diff --git a/src/simd.js b/src/simd.js
index bbb12d0a..c7f5ff48 100644
--- a/src/simd.js
+++ b/src/simd.js
@@ -20,8 +20,10 @@
   https://github.com/johnmccutchan/ecmascript_simd/blob/master/src/ecmascript_simd.js
 */
 
+"use strict";
+
 /**
-  * Construct a new instance of a float32x4 number.
+  * Construct a new instance of float32x4 number.
   * @param {double} value used for x lane.
   * @param {double} value used for y lane.
   * @param {double} value used for z lane.
@@ -40,7 +42,7 @@ function float32x4(x, y, z, w) {
 }
 
 /**
-  * Construct a new instance of a float32x4 number with 0.0 in all lanes.
+  * Construct a new instance of float32x4 number with 0.0 in all lanes.
   * @constructor
   */
 float32x4.zero = function() {
@@ -48,7 +50,7 @@ float32x4.zero = function() {
 }
 
 /**
-  * Construct a new instance of a float32x4 number with the same value
+  * Construct a new instance of float32x4 number with the same value
   * in all lanes.
   * @param {double} value used for all lanes.
   * @constructor
@@ -87,18 +89,18 @@ Object.defineProperty(float32x4.prototype, 'signMask', {
 });
 
 /**
-  * Construct a new instance of a uint32x4 number.
+  * Construct a new instance of int32x4 number.
   * @param {integer} 32-bit unsigned value used for x lane.
   * @param {integer} 32-bit unsigned value used for y lane.
   * @param {integer} 32-bit unsigned value used for z lane.
   * @param {integer} 32-bit unsigned value used for w lane.
   * @constructor
   */
-function uint32x4(x, y, z, w) {
-  if (!(this instanceof uint32x4)) {
-    return new uint32x4(x, y, z, w);
+function int32x4(x, y, z, w) {
+  if (!(this instanceof int32x4)) {
+    return new int32x4(x, y, z, w);
   }
-  this.storage_ = new Uint32Array(4);
+  this.storage_ = new Int32Array(4);
   this.storage_[0] = x;
   this.storage_[1] = y;
   this.storage_[2] = z;
@@ -106,7 +108,7 @@ function uint32x4(x, y, z, w) {
 }
 
 /**
-  * Construct a new instance of a uint32x4 number with 0xFFFFFFFF or 0x0 in each
+  * Construct a new instance of int32x4 number with 0xFFFFFFFF or 0x0 in each
   * lane, depending on the truth value in x, y, z, and w.
   * @param {boolean} flag used for x lane.
   * @param {boolean} flag used for y lane.
@@ -114,59 +116,59 @@ function uint32x4(x, y, z, w) {
   * @param {boolean} flag used for w lane.
   * @constructor
   */
-uint32x4.bool = function(x, y, z, w) {
-  return uint32x4(x ? 0xFFFFFFFF : 0x0,
-                  y ? 0xFFFFFFFF : 0x0,
-                  z ? 0xFFFFFFFF : 0x0,
-                  w ? 0xFFFFFFFF : 0x0);
+int32x4.bool = function(x, y, z, w) {
+  return int32x4(x ? -1 : 0x0,
+                  y ? -1 : 0x0,
+                  z ? -1 : 0x0,
+                  w ? -1 : 0x0);
 }
 
 /**
-  * Construct a new instance of a uint32x4 number with the same value
+  * Construct a new instance of int32x4 number with the same value
   * in all lanes.
   * @param {integer} value used for all lanes.
   * @constructor
   */
-uint32x4.splat = function(s) {
-  return uint32x4(s, s, s, s);
+int32x4.splat = function(s) {
+  return int32x4(s, s, s, s);
 }
 
-Object.defineProperty(uint32x4.prototype, 'x', {
+Object.defineProperty(int32x4.prototype, 'x', {
   get: function() { return this.storage_[0]; }
 });
 
-Object.defineProperty(uint32x4.prototype, 'y', {
+Object.defineProperty(int32x4.prototype, 'y', {
   get: function() { return this.storage_[1]; }
 });
 
-Object.defineProperty(uint32x4.prototype, 'z', {
+Object.defineProperty(int32x4.prototype, 'z', {
   get: function() { return this.storage_[2]; }
 });
 
-Object.defineProperty(uint32x4.prototype, 'w',
+Object.defineProperty(int32x4.prototype, 'w',
   { get: function() { return this.storage_[3]; }
 });
 
-Object.defineProperty(uint32x4.prototype, 'flagX', {
+Object.defineProperty(int32x4.prototype, 'flagX', {
   get: function() { return this.storage_[0] != 0x0; }
 });
 
-Object.defineProperty(uint32x4.prototype, 'flagY', {
+Object.defineProperty(int32x4.prototype, 'flagY', {
   get: function() { return this.storage_[1] != 0x0; }
 });
 
-Object.defineProperty(uint32x4.prototype, 'flagZ', {
+Object.defineProperty(int32x4.prototype, 'flagZ', {
   get: function() { return this.storage_[2] != 0x0; }
 });
 
-Object.defineProperty(uint32x4.prototype, 'flagW',
+Object.defineProperty(int32x4.prototype, 'flagW',
   { get: function() { return this.storage_[3] != 0x0; }
 });
 
 /**
   * Extract the sign bit from each lane return them in the first 4 bits.
   */
-Object.defineProperty(uint32x4.prototype, 'signMask', {
+Object.defineProperty(int32x4.prototype, 'signMask', {
   get: function() {
     var mx = (this.storage_[0] & 0x80000000) >>> 31;
     var my = (this.storage_[1] & 0x80000000) >>> 31;
@@ -287,414 +289,580 @@ Float32x4Array.prototype.setAt = function(i, v) {
   this.storage_[i*4+3] = v.w;
 }
 
+
+function Int32x4Array(a, b, c) {
+
+  function isNumber(o) {
+      return typeof o == "number" || (typeof o == "object" && o.constructor === Number);
+  }
+
+  function isTypedArray(o) {
+    return (o instanceof Int8Array) ||
+           (o instanceof Uint8Array) ||
+           (o instanceof Uint8ClampedArray) ||
+           (o instanceof Int16Array) ||
+           (o instanceof Uint16Array) ||
+           (o instanceof Int32Array) ||
+           (o instanceof Uint32Array) ||
+           (o instanceof Float32Array) ||
+           (o instanceof Float64Array) ||
+           (o instanceof Int32x4Array) ||
+           (o instanceof Float32x4Array);
+  }
+
+  function isArrayBuffer(o) {
+    return (o instanceof ArrayBuffer);
+  }
+
+  if (isNumber(a)) {
+    this.storage_ = new Int32Array(a*4);
+    this.length_ = a;
+    this.byteOffset_ = 0;
+    return;
+  } else if (isTypedArray(a)) {
+    if (!(a instanceof Int32x4Array)) {
+      throw "Copying typed array of non-Int32x4Array is unimplemented.";
+    }
+    this.storage_ = new Int32Array(a.length * 4);
+    this.length_ = a.length;
+    this.byteOffset_ = 0;
+    // Copy floats.
+    for (var i = 0; i < a.length*4; i++) {
+      this.storage_[i] = a.storage_[i];
+    }
+  } else if (isArrayBuffer(a)) {
+    if ((b != undefined) && (b % Int32x4Array.BYTES_PER_ELEMENT) != 0) {
+      throw "byteOffset must be a multiple of 16.";
+    }
+    if (c != undefined) {
+      c *= 4;
+      this.storage_ = new Int32Array(a, b, c);
+    }
+    else {
+      // Note: new Int32Array(a, b) is NOT equivalent to new Float32Array(a, b, undefined)
+      this.storage_ = new Int32Array(a, b);
+    }
+    this.length_ = this.storage_.length / 4;
+    this.byteOffset_ = b != undefined ? b : 0;
+  } else {
+    throw "Unknown type of first argument.";
+  }
+}
+
+Object.defineProperty(Int32x4Array.prototype, 'length',
+  { get: function() { return this.length_; }
+});
+
+Object.defineProperty(Int32x4Array.prototype, 'byteLength',
+  { get: function() { return this.length_ * Int32x4Array.BYTES_PER_ELEMENT; }
+});
+
+Object.defineProperty(Int32x4Array, 'BYTES_PER_ELEMENT',
+  { get: function() { return 16; }
+});
+
+Object.defineProperty(Int32x4Array.prototype, 'BYTES_PER_ELEMENT',
+  { get: function() { return 16; }
+});
+
+Object.defineProperty(Int32x4Array.prototype, 'byteOffset',
+  { get: function() { return this.byteOffset_; }
+});
+
+Object.defineProperty(Int32x4Array.prototype, 'buffer',
+  { get: function() { return this.storage_.buffer; }
+});
+
+Int32x4Array.prototype.getAt = function(i) {
+  if (i < 0) {
+    throw "Index must be >= 0.";
+  }
+  if (i >= this.length) {
+    throw "Index out of bounds.";
+  }
+  var x = this.storage_[i*4+0];
+  var y = this.storage_[i*4+1];
+  var z = this.storage_[i*4+2];
+  var w = this.storage_[i*4+3];
+  return float32x4(x, y, z, w);
+}
+
+Int32x4Array.prototype.setAt = function(i, v) {
+  if (i < 0) {
+    throw "Index must be >= 0.";
+  }
+  if (i >= this.length) {
+    throw "Index out of bounds.";
+  }
+  if (!(v instanceof int32x4)) {
+    throw "Value is not a int32x4.";
+  }
+  this.storage_[i*4+0] = v.x;
+  this.storage_[i*4+1] = v.y;
+  this.storage_[i*4+2] = v.z;
+  this.storage_[i*4+3] = v.w;
+}
+
 var SIMD = (function () {
   return {
-    /**
-      * @return {float32x4} New instance of float32x4 with absolute values of
-      * t.
-      */
-    abs: function(t) {
-      return new float32x4(Math.abs(t.x), Math.abs(t.y), Math.abs(t.z),
-                           Math.abs(t.w));
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with negated values of
-      * t.
-      */
-    neg: function(t) {
-      return new float32x4(-t.x, -t.y, -t.z, -t.w);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with a + b.
-      */
-    add: function(a, b) {
-      return new float32x4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with a - b.
-      */
-    sub: function(a, b) {
-      return new float32x4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with a * b.
-      */
-    mul: function(a, b) {
-      return new float32x4(a.x * b.x, a.y * b.y, a.z * b.z, a.w * b.w);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with a / b.
-      */
-    div: function(a, b) {
-      return new float32x4(a.x / b.x, a.y / b.y, a.z / b.z, a.w / b.w);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with t's values clamped
-      * between lowerLimit and upperLimit.
-      */
-    clamp: function(t, lowerLimit, upperLimit) {
-      var cx = t.x < lowerLimit.x ? lowerLimit.x : t.x;
-      var cy = t.y < lowerLimit.y ? lowerLimit.y : t.y;
-      var cz = t.z < lowerLimit.z ? lowerLimit.z : t.z;
-      var cw = t.w < lowerLimit.w ? lowerLimit.w : t.w;
-      cx = cx > upperLimit.x ? upperLimit.x : cx;
-      cy = cy > upperLimit.y ? upperLimit.y : cy;
-      cz = cz > upperLimit.z ? upperLimit.z : cz;
-      cw = cw > upperLimit.w ? upperLimit.w : cw;
-      return new float32x4(cx, cy, cz, cw);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with the minimum value of
-      * t and other.
-      */
-    min: function(t, other) {
-      var cx = t.x > other.x ? other.x : t.x;
-      var cy = t.y > other.y ? other.y : t.y;
-      var cz = t.z > other.z ? other.z : t.z;
-      var cw = t.w > other.w ? other.w : t.w;
-      return new float32x4(cx, cy, cz, cw);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with the maximum value of
-      * t and other.
-      */
-    max: function(t, other) {
-      var cx = t.x < other.x ? other.x : t.x;
-      var cy = t.y < other.y ? other.y : t.y;
-      var cz = t.z < other.z ? other.z : t.z;
-      var cw = t.w < other.w ? other.w : t.w;
-      return new float32x4(cx, cy, cz, cw);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with reciprocal value of
-      * t.
-      */
-    reciprocal: function(t) {
-      return new float32x4(1.0 / t.x, 1.0 / t.y, 1.0 / t.z, 1.0 / t.w);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with square root of the
-      * reciprocal value of t.
-      */
-    reciprocalSqrt: function(t) {
-      return new float32x4(Math.sqrt(1.0 / t.x), Math.sqrt(1.0 / t.y),
-                           Math.sqrt(1.0 / t.z), Math.sqrt(1.0 / t.w));
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with values of t
-      * scaled by s.
-      */
-    scale: function(t, s) {
-      return new float32x4(s * t.x, s * t.y, s * t.z, s * t.w);
-    },
-    /**
-      * @return {float32x4} New instance of float32x4 with square root of
-      * values of t.
-      */
-    sqrt: function(t) {
-      return new float32x4(Math.sqrt(t.x), Math.sqrt(t.y),
-                           Math.sqrt(t.z), Math.sqrt(t.w));
-    },
-    /**
-      * @param {float32x4} t An instance of float32x4 to be shuffled.
-      * @param {integer} mask One of the 256 shuffle masks, for example, SIMD.XXXX.
-      * @return {float32x4} New instance of float32x4 with lanes shuffled.
-      */
-    shuffle: function(t, mask) {
-      var _x = (mask) & 0x3;
-      var _y = (mask >> 2) & 0x3;
-      var _z = (mask >> 4) & 0x3;
-      var _w = (mask >> 6) & 0x3;
-      return new float32x4(t.storage_[_x], t.storage_[_y], t.storage_[_z],
-                           t.storage_[_w]);
+    float32x4: {
+        /**
+        * @return {float32x4} New instance of float32x4 with absolute values of
+        * t.
+        */
+      abs: function(t) {
+        return new float32x4(Math.abs(t.x), Math.abs(t.y), Math.abs(t.z),
+                             Math.abs(t.w));
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with negated values of
+        * t.
+        */
+      neg: function(t) {
+        return new float32x4(-t.x, -t.y, -t.z, -t.w);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with a + b.
+        */
+      add: function(a, b) {
+        return new float32x4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with a - b.
+        */
+      sub: function(a, b) {
+        return new float32x4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with a * b.
+        */
+      mul: function(a, b) {
+        return new float32x4(a.x * b.x, a.y * b.y, a.z * b.z, a.w * b.w);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with a / b.
+        */
+      div: function(a, b) {
+        return new float32x4(a.x / b.x, a.y / b.y, a.z / b.z, a.w / b.w);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with t's values clamped
+        * between lowerLimit and upperLimit.
+        */
+      clamp: function(t, lowerLimit, upperLimit) {
+        var cx = t.x < lowerLimit.x ? lowerLimit.x : t.x;
+        var cy = t.y < lowerLimit.y ? lowerLimit.y : t.y;
+        var cz = t.z < lowerLimit.z ? lowerLimit.z : t.z;
+        var cw = t.w < lowerLimit.w ? lowerLimit.w : t.w;
+        cx = cx > upperLimit.x ? upperLimit.x : cx;
+        cy = cy > upperLimit.y ? upperLimit.y : cy;
+        cz = cz > upperLimit.z ? upperLimit.z : cz;
+        cw = cw > upperLimit.w ? upperLimit.w : cw;
+        return new float32x4(cx, cy, cz, cw);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with the minimum value of
+        * t and other.
+        */
+      min: function(t, other) {
+        var cx = t.x > other.x ? other.x : t.x;
+        var cy = t.y > other.y ? other.y : t.y;
+        var cz = t.z > other.z ? other.z : t.z;
+        var cw = t.w > other.w ? other.w : t.w;
+        return new float32x4(cx, cy, cz, cw);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with the maximum value of
+        * t and other.
+        */
+      max: function(t, other) {
+        var cx = t.x < other.x ? other.x : t.x;
+        var cy = t.y < other.y ? other.y : t.y;
+        var cz = t.z < other.z ? other.z : t.z;
+        var cw = t.w < other.w ? other.w : t.w;
+        return new float32x4(cx, cy, cz, cw);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with reciprocal value of
+        * t.
+        */
+      reciprocal: function(t) {
+        return new float32x4(1.0 / t.x, 1.0 / t.y, 1.0 / t.z, 1.0 / t.w);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with square root of the
+        * reciprocal value of t.
+        */
+      reciprocalSqrt: function(t) {
+        return new float32x4(Math.sqrt(1.0 / t.x), Math.sqrt(1.0 / t.y),
+                             Math.sqrt(1.0 / t.z), Math.sqrt(1.0 / t.w));
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with values of t
+        * scaled by s.
+        */
+      scale: function(t, s) {
+        return new float32x4(s * t.x, s * t.y, s * t.z, s * t.w);
+      },
+      /**
+        * @return {float32x4} New instance of float32x4 with square root of
+        * values of t.
+        */
+      sqrt: function(t) {
+        return new float32x4(Math.sqrt(t.x), Math.sqrt(t.y),
+                             Math.sqrt(t.z), Math.sqrt(t.w));
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4 to be shuffled.
+        * @param {integer} mask One of the 256 shuffle masks, for example, SIMD.XXXX.
+        * @return {float32x4} New instance of float32x4 with lanes shuffled.
+        */
+      shuffle: function(t, mask) {
+        var _x = (mask) & 0x3;
+        var _y = (mask >> 2) & 0x3;
+        var _z = (mask >> 4) & 0x3;
+        var _w = (mask >> 6) & 0x3;
+        return new float32x4(t.storage_[_x], t.storage_[_y], t.storage_[_z],
+                             t.storage_[_w]);
+      },
+      /**
+        * @param {float32x4} t1 An instance of float32x4 to be shuffled. XY lanes in result
+        * @param {float32x4} t2 An instance of float32x4 to be shuffled. ZW lanes in result
+        * @param {integer} mask One of the 256 shuffle masks, for example, SIMD.XXXX.
+        * @return {float32x4} New instance of float32x4 with lanes shuffled.
+        */
+      shuffleMix: function(t1, t2, mask) {
+        var _x = (mask) & 0x3;
+        var _y = (mask >> 2) & 0x3;
+        var _z = (mask >> 4) & 0x3;
+        var _w = (mask >> 6) & 0x3;
+        return new float32x4(t1.storage_[_x], t1.storage_[_y], t2.storage_[_z],
+                             t2.storage_[_w]);
+      },
+      /**
+        * @param {double} value used for x lane.
+        * @return {float32x4} New instance of float32x4 with the values in t and
+        * x replaced with {x}.
+        */
+      withX: function(t, x) {
+        return new float32x4(x, t.y, t.z, t.w);
+      },
+      /**
+        * @param {double} value used for y lane.
+        * @return {float32x4} New instance of float32x4 with the values in t and
+        * y replaced with {y}.
+        */
+      withY: function(t, y) {
+        return new float32x4(t.x, y, t.z, t.w);
+      },
+      /**
+        * @param {double} value used for z lane.
+        * @return {float32x4} New instance of float32x4 with the values in t and
+        * z replaced with {z}.
+        */
+      withZ: function(t, z) {
+        return new float32x4(t.x, t.y, z, t.w);
+      },
+      /**
+        * @param {double} value used for w lane.
+        * @return {float32x4} New instance of float32x4 with the values in t and
+        * w replaced with {w}.
+        */
+      withW: function(t, w) {
+        return new float32x4(t.x, t.y, t.z, w);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @param {float32x4} other An instance of float32x4.
+        * @return {int32x4} 0xFFFFFFFF or 0x0 in each lane depending on
+        * the result of t < other.
+        */
+      lessThan: function(t, other) {
+        var cx = t.x < other.x;
+        var cy = t.y < other.y;
+        var cz = t.z < other.z;
+        var cw = t.w < other.w;
+        return int32x4.bool(cx, cy, cz, cw);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @param {float32x4} other An instance of float32x4.
+        * @return {int32x4} 0xFFFFFFFF or 0x0 in each lane depending on
+        * the result of t <= other.
+        */
+      lessThanOrEqual: function(t, other) {
+        var cx = t.x <= other.x;
+        var cy = t.y <= other.y;
+        var cz = t.z <= other.z;
+        var cw = t.w <= other.w;
+        return int32x4.bool(cx, cy, cz, cw);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @param {float32x4} other An instance of float32x4.
+        * @return {int32x4} 0xFFFFFFFF or 0x0 in each lane depending on
+        * the result of t == other.
+        */
+      equal: function(t, other) {
+        var cx = t.x == other.x;
+        var cy = t.y == other.y;
+        var cz = t.z == other.z;
+        var cw = t.w == other.w;
+        return int32x4.bool(cx, cy, cz, cw);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @param {float32x4} other An instance of float32x4.
+        * @return {int32x4} 0xFFFFFFFF or 0x0 in each lane depending on
+        * the result of t != other.
+        */
+      notEqual: function(t, other) {
+        var cx = t.x != other.x;
+        var cy = t.y != other.y;
+        var cz = t.z != other.z;
+        var cw = t.w != other.w;
+        return int32x4.bool(cx, cy, cz, cw);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @param {float32x4} other An instance of float32x4.
+        * @return {int32x4} 0xFFFFFFFF or 0x0 in each lane depending on
+        * the result of t >= other.
+        */
+      greaterThanOrEqual: function(t, other) {
+        var cx = t.x >= other.x;
+        var cy = t.y >= other.y;
+        var cz = t.z >= other.z;
+        var cw = t.w >= other.w;
+        return int32x4.bool(cx, cy, cz, cw);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @param {float32x4} other An instance of float32x4.
+        * @return {int32x4} 0xFFFFFFFF or 0x0 in each lane depending on
+        * the result of t > other.
+        */
+      greaterThan: function(t, other) {
+        var cx = t.x > other.x;
+        var cy = t.y > other.y;
+        var cz = t.z > other.z;
+        var cw = t.w > other.w;
+        return int32x4.bool(cx, cy, cz, cw);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @return {int32x4} a bit-wise copy of t as a int32x4.
+        */
+      bitsToInt32x4: function(t) {
+        var alias = new Int32Array(t.storage_.buffer);
+        return new int32x4(alias[0], alias[1], alias[2], alias[3]);
+      },
+      /**
+        * @param {float32x4} t An instance of float32x4.
+        * @return {int32x4} with a integer to float conversion of t.
+        */
+      toInt32x4: function(t) {
+        var a = new int32x4(t.storage_[0], t.storage_[1], t.storage_[2],
+                             t.storage_[3]);
+        return a;
+      }
     },
-    /**
-      * @param {double} value used for x lane.
-      * @return {float32x4} New instance of float32x4 with the values in t and
-      * x replaced with {x}.
-      */
-    withX: function(t, x) {
-      return new float32x4(x, t.y, t.z, t.w);
-    },
-    /**
-      * @param {double} value used for y lane.
-      * @return {float32x4} New instance of float32x4 with the values in t and
-      * y replaced with {y}.
-      */
-    withY: function(t, y) {
-      return new float32x4(t.x, y, t.z, t.w);
-    },
-    /**
-      * @param {double} value used for z lane.
-      * @return {float32x4} New instance of float32x4 with the values in t and
-      * z replaced with {z}.
-      */
-    withZ: function(t, z) {
-      return new float32x4(t.x, t.y, z, t.w);
-    },
-    /**
-      * @param {double} value used for w lane.
-      * @return {float32x4} New instance of float32x4 with the values in t and
-      * w replaced with {w}.
-      */
-    withW: function(t, w) {
-      return new float32x4(t.x, t.y, t.z, w);
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @param {float32x4} other An instance of a float32x4.
-      * @return {uint32x4} 0xFFFFFFFF or 0x0 in each lane depending on
-      * the result of t < other.
-      */
-    lessThan: function(t, other) {
-      var cx = t.x < other.x;
-      var cy = t.y < other.y;
-      var cz = t.z < other.z;
-      var cw = t.w < other.w;
-      return uint32x4.bool(cx, cy, cz, cw);
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @param {float32x4} other An instance of a float32x4.
-      * @return {uint32x4} 0xFFFFFFFF or 0x0 in each lane depending on
-      * the result of t <= other.
-      */
-    lessThanOrEqual: function(t, other) {
-      var cx = t.x <= other.x;
-      var cy = t.y <= other.y;
-      var cz = t.z <= other.z;
-      var cw = t.w <= other.w;
-      return uint32x4.bool(cx, cy, cz, cw);
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @param {float32x4} other An instance of a float32x4.
-      * @return {uint32x4} 0xFFFFFFFF or 0x0 in each lane depending on
-      * the result of t == other.
-      */
-    equal: function(t, other) {
-      var cx = t.x == other.x;
-      var cy = t.y == other.y;
-      var cz = t.z == other.z;
-      var cw = t.w == other.w;
-      return uint32x4.bool(cx, cy, cz, cw);
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @param {float32x4} other An instance of a float32x4.
-      * @return {uint32x4} 0xFFFFFFFF or 0x0 in each lane depending on
-      * the result of t != other.
-      */
-    notEqual: function(t, other) {
-      var cx = t.x != other.x;
-      var cy = t.y != other.y;
-      var cz = t.z != other.z;
-      var cw = t.w != other.w;
-      return uint32x4.bool(cx, cy, cz, cw);
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @param {float32x4} other An instance of a float32x4.
-      * @return {uint32x4} 0xFFFFFFFF or 0x0 in each lane depending on
-      * the result of t >= other.
-      */
-    greaterThanOrEqual: function(t, other) {
-      var cx = t.x >= other.x;
-      var cy = t.y >= other.y;
-      var cz = t.z >= other.z;
-      var cw = t.w >= other.w;
-      return uint32x4.bool(cx, cy, cz, cw);
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @param {float32x4} other An instance of a float32x4.
-      * @return {uint32x4} 0xFFFFFFFF or 0x0 in each lane depending on
-      * the result of t > other.
-      */
-    greaterThan: function(t, other) {
-      var cx = t.x > other.x;
-      var cy = t.y > other.y;
-      var cz = t.z > other.z;
-      var cw = t.w > other.w;
-      return uint32x4.bool(cx, cy, cz, cw);
-    },
-    /**
-      * @param {uint32x4} a An instance of a uint32x4.
-      * @param {uint32x4} b An instance of a uint32x4.
-      * @return {uint32x4} New instance of uint32x4 with values of a & b.
-      */
-    and: function(a, b) {
-      return new uint32x4(a.x & b.x, a.y & b.y, a.z & b.z, a.w & b.w);
-    },
-    /**
-      * @param {uint32x4} a An instance of a uint32x4.
-      * @param {uint32x4} b An instance of a uint32x4.
-      * @return {uint32x4} New instance of uint32x4 with values of a | b.
-      */
-    or: function(a, b) {
-      return new uint32x4(a.x | b.x, a.y | b.y, a.z | b.z, a.w | b.w);
-    },
-    /**
-      * @param {uint32x4} a An instance of a uint32x4.
-      * @param {uint32x4} b An instance of a uint32x4.
-      * @return {uint32x4} New instance of uint32x4 with values of a ^ b.
-      */
-    xor: function(a, b) {
-      return new uint32x4(a.x ^ b.x, a.y ^ b.y, a.z ^ b.z, a.w ^ b.w);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @return {uint32x4} New instance of uint32x4 with values of ~a
-      */
-    negu32: function(t) {
-      return new uint32x4(~t.x, ~t.y, ~t.z, ~t.w);
-    },
-    /**
-      * @param {uint32x4} a An instance of uint32x4.
-      * @param {uint32x4} b An instance of uint32x4.
-      * @return {uint32x4} New instance of uint32x4 with values of a + b.
-      */
-    addu32: function(a, b) {
-      return new uint32x4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
-    },
-    /**
-      * @param {uint32x4} a An instance of uint32x4.
-      * @param {uint32x4} b An instance of uint32x4.
-      * @return {uint32x4} New instance of uint32x4 with values of a - b.
-      */
-    subu32: function(a, b) {
-      return new uint32x4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
-    },
-    /**
-      * @param {uint32x4} a An instance of uint32x4.
-      * @param {uint32x4} b An instance of uint32x4.
-      * @return {uint32x4} New instance of uint32x4 with values of a * b.
-      */
-    mulu32: function(a, b) {
-      return new uint32x4(Math.imul(a.x, b.x), Math.imul(a.y, b.y),
-                          Math.imul(a.z, b.z), Math.imul(a.w, b.w));
-    },
-    /**
-      * @param {float32x4}
-      */
-    select: function(t, trueValue, falseValue) {
-      var tv = SIMD.float32x4BitsToUint32x4(trueValue);
-      var fv = SIMD.float32x4BitsToUint32x4(falseValue);
-      var tr = SIMD.and(t, tv);
-      var fr = SIMD.and(SIMD.negu32(t), fv);
-      return SIMD.uint32x4BitsToFloat32x4(SIMD.or(tr, fr));
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @param {integer} 32-bit value used for x lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * x lane replaced with {x}.
-      */
-    withXu32: function(t, x) {
-      return new uint32x4(x, t.y, t.z, t.w);
-    },
-    /**
-      * param {uint32x4} t An instance of a uint32x4.
-      * @param {integer} 32-bit value used for y lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * y lane replaced with {y}.
-      */
-    withYu32: function(t, y) {
-      return new uint32x4(t.x, y, t.z, t.w);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @param {integer} 32-bit value used for z lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * z lane replaced with {z}.
-      */
-    withZu32: function(t, z) {
-      return new uint32x4(t.x, t.y, z, t.w);
-    },
-    /**
-      * @param {integer} 32-bit value used for w lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * w lane replaced with {w}.
-      */
-    withWu32: function(t, w) {
-      return new uint32x4(t.x, t.y, t.z, w);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @param {boolean} x flag used for x lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * x lane replaced with {x}.
-      */
-    withFlagX: function(t, flagX) {
-      var x = flagX ? 0xFFFFFFFF : 0x0;
-      return new uint32x4(x, t.y, t.z, t.w);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @param {boolean} y flag used for y lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * y lane replaced with {y}.
-      */
-    withFlagY: function(t, flagY) {
-      var y = flagY ? 0xFFFFFFFF : 0x0;
-      return new uint32x4(t.x, y, t.z, t.w);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @param {boolean} z flag used for z lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * z lane replaced with {z}.
-      */
-    withFlagZ: function(t, flagZ) {
-      var z = flagZ ? 0xFFFFFFFF : 0x0;
-      return new uint32x4(t.x, t.y, z, t.w);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @param {boolean} w flag used for w lane.
-      * @return {uint32x4} New instance of uint32x4 with the values in t and
-      * w lane replaced with {w}.
-      */
-    withFlagW: function(t, flagW) {
-      var w = flagW ? 0xFFFFFFFF : 0x0;
-      return new uint32x4(t.x, t.y, t.z, w);
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @return {uint32x4} a bit-wise copy of t as a uint32x4.
-      */
-    float32x4BitsToUint32x4: function(t) {
-      var alias = new Uint32Array(t.storage_.buffer);
-      return new uint32x4(alias[0], alias[1], alias[2], alias[3]);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @return {float32x4} a bit-wise copy of t as a float32x4.
-      */
-    uint32x4BitsToFloat32x4: function(t) {
-      var alias = new Float32Array(t.storage_.buffer);
-      return new float32x4(alias[0], alias[1], alias[2], alias[3]);
-    },
-    /**
-      * @param {uint32x4} t An instance of a uint32x4.
-      * @return {float32x4} with a float to integer conversion copy of t.
-      */
-    uint32x4ToFloat32x4: function(t) {
-      var a = float32x4.zero();
-      a.storage_[0] = t.storage_[0];
-      a.storage_[1] = t.storage_[1];
-      a.storage_[2] = t.storage_[2];
-      a.storage_[3] = t.storage_[3];
-      return a;
-    },
-    /**
-      * @param {float32x4} t An instance of a float32x4.
-      * @return {uint32x4} with a integer to float conversion of t.
-      */
-    float32x4ToUint32x4: function(t) {
-      var a = new uint32x4(t.storage_[0], t.storage_[1], t.storage_[2],
-                           t.storage_[3]);
-      return a;
+    int32x4: {
+      /**
+        * @param {int32x4} a An instance of int32x4.
+        * @param {int32x4} b An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of a & b.
+        */
+      and: function(a, b) {
+        return new int32x4(a.x & b.x, a.y & b.y, a.z & b.z, a.w & b.w);
+      },
+      /**
+        * @param {int32x4} a An instance of int32x4.
+        * @param {int32x4} b An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of a | b.
+        */
+      or: function(a, b) {
+        return new int32x4(a.x | b.x, a.y | b.y, a.z | b.z, a.w | b.w);
+      },
+      /**
+        * @param {int32x4} a An instance of int32x4.
+        * @param {int32x4} b An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of a ^ b.
+        */
+      xor: function(a, b) {
+        return new int32x4(a.x ^ b.x, a.y ^ b.y, a.z ^ b.z, a.w ^ b.w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of ~t
+        */
+      not: function(t) {
+        return new int32x4(~t.x, ~t.y, ~t.z, ~t.w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of -t
+        */
+      neg: function(t) {
+        return new int32x4(-t.x, -t.y, -t.z, -t.w);
+      },
+      /**
+        * @param {int32x4} a An instance of int32x4.
+        * @param {int32x4} b An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of a + b.
+        */
+      add: function(a, b) {
+        return new int32x4(a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w);
+      },
+      /**
+        * @param {int32x4} a An instance of int32x4.
+        * @param {int32x4} b An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of a - b.
+        */
+      sub: function(a, b) {
+        return new int32x4(a.x - b.x, a.y - b.y, a.z - b.z, a.w - b.w);
+      },
+      /**
+        * @param {int32x4} a An instance of int32x4.
+        * @param {int32x4} b An instance of int32x4.
+        * @return {int32x4} New instance of int32x4 with values of a * b.
+        */
+      mul: function(a, b) {
+        return new int32x4(Math.imul(a.x, b.x), Math.imul(a.y, b.y),
+                           Math.imul(a.z, b.z), Math.imul(a.w, b.w));
+      },
+      /**
+        * @param {int32x4} t An instance of float32x4 to be shuffled.
+        * @param {integer} mask One of the 256 shuffle masks, for example, SIMD.XXXX.
+        * @return {int32x4} New instance of float32x4 with lanes shuffled.
+        */
+      shuffle: function(t, mask) {
+        var _x = (mask) & 0x3;
+        var _y = (mask >> 2) & 0x3;
+        var _z = (mask >> 4) & 0x3;
+        var _w = (mask >> 6) & 0x3;
+        return new int32x4(t.storage_[_x], t.storage_[_y], t.storage_[_z],
+                             t.storage_[_w]);
+      },
+      /**
+        * @param {int32x4} t1 An instance of float32x4 to be shuffled. XY lanes in result
+        * @param {int32x4} t2 An instance of float32x4 to be shuffled. ZW lanes in result
+        * @param {integer} mask One of the 256 shuffle masks, for example, SIMD.XXXX.
+        * @return {int32x4} New instance of float32x4 with lanes shuffled.
+        */
+      shuffleMix: function(t1, t2, mask) {
+        var _x = (mask) & 0x3;
+        var _y = (mask >> 2) & 0x3;
+        var _z = (mask >> 4) & 0x3;
+        var _w = (mask >> 6) & 0x3;
+        return new int32x4(t1.storage_[_x], t1.storage_[_y], t2.storage_[_z],
+                             t2.storage_[_w]);
+      },
+      /**
+        * @param {float32x4}
+        */
+      select: function(t, trueValue, falseValue) {
+        var tv = SIMD.float32x4.bitsToInt32x4(trueValue);
+        var fv = SIMD.float32x4.bitsToInt32x4(falseValue);
+        var tr = SIMD.int32x4.and(t, tv);
+        var fr = SIMD.int32x4.and(SIMD.int32x4.not(t), fv);
+        return SIMD.int32x4.bitsToFloat32x4(SIMD.int32x4.or(tr, fr));
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @param {integer} 32-bit value used for x lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * x lane replaced with {x}.
+        */
+      withX: function(t, x) {
+        return new int32x4(x, t.y, t.z, t.w);
+      },
+      /**
+        * param {int32x4} t An instance of int32x4.
+        * @param {integer} 32-bit value used for y lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * y lane replaced with {y}.
+        */
+      withY: function(t, y) {
+        return new int32x4(t.x, y, t.z, t.w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @param {integer} 32-bit value used for z lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * z lane replaced with {z}.
+        */
+      withZ: function(t, z) {
+        return new int32x4(t.x, t.y, z, t.w);
+      },
+      /**
+        * @param {integer} 32-bit value used for w lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * w lane replaced with {w}.
+        */
+      withW: function(t, w) {
+        return new int32x4(t.x, t.y, t.z, w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @param {boolean} x flag used for x lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * x lane replaced with {x}.
+        */
+      withFlagX: function(t, flagX) {
+        var x = flagX ? 0xFFFFFFFF : 0x0;
+        return new int32x4(x, t.y, t.z, t.w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @param {boolean} y flag used for y lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * y lane replaced with {y}.
+        */
+      withFlagY: function(t, flagY) {
+        var y = flagY ? 0xFFFFFFFF : 0x0;
+        return new int32x4(t.x, y, t.z, t.w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @param {boolean} z flag used for z lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * z lane replaced with {z}.
+        */
+      withFlagZ: function(t, flagZ) {
+        var z = flagZ ? 0xFFFFFFFF : 0x0;
+        return new int32x4(t.x, t.y, z, t.w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @param {boolean} w flag used for w lane.
+        * @return {int32x4} New instance of int32x4 with the values in t and
+        * w lane replaced with {w}.
+        */
+      withFlagW: function(t, flagW) {
+        var w = flagW ? 0xFFFFFFFF : 0x0;
+        return new int32x4(t.x, t.y, t.z, w);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @return {float32x4} a bit-wise copy of t as a float32x4.
+        */
+      bitsToFloat32x4: function(t) {
+        var alias = new Float32Array(t.storage_.buffer);
+        return new float32x4(alias[0], alias[1], alias[2], alias[3]);
+      },
+      /**
+        * @param {int32x4} t An instance of int32x4.
+        * @return {float32x4} with a float to integer conversion copy of t.
+        */
+      toFloat32x4: function(t) {
+        var a = float32x4.zero();
+        a.storage_[0] = t.storage_[0];
+        a.storage_[1] = t.storage_[1];
+        a.storage_[2] = t.storage_[2];
+        a.storage_[3] = t.storage_[3];
+        return a;
+      }
     }
   }
 })();
@@ -955,4 +1123,3 @@ Object.defineProperty(SIMD, 'WWWX', { get: function() { return 0x3F; } });
 Object.defineProperty(SIMD, 'WWWY', { get: function() { return 0x7F; } });
 Object.defineProperty(SIMD, 'WWWZ', { get: function() { return 0xBF; } });
 Object.defineProperty(SIMD, 'WWWW', { get: function() { return 0xFF; } });
-