1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit-test/tests/ion/bug851792.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,135 @@
1.4 +// Based on tests/ion/typed-arrays-1.js, but with string indexes
1.5 +function testInt8() {
1.6 + var arr1 = new Int8Array(50);
1.7 + var arr2 = new Uint8Array(50);
1.8 + var arr3 = new Uint8ClampedArray(50);
1.9 +
1.10 + for (var i=0; i<arr1.length; i++) {
1.11 + arr1[i] = arr2[i] = arr3[i] = i * 8;
1.12 + }
1.13 + var res = 0;
1.14 + for (var i=0; i<arr1.length; i++) {
1.15 + res += arr1[i+""] + arr2[i+""] + arr3[i+""] + arr2["10".concat("")];
1.16 + }
1.17 + assertEq(res, 18334);
1.18 +}
1.19 +testInt8();
1.20 +
1.21 +function testInt16() {
1.22 + var arr1 = new Int16Array(70);
1.23 + var arr2 = new Uint16Array(70);
1.24 +
1.25 + for (var i=0; i<arr1.length; i++) {
1.26 + arr1[i] = arr2[i] = i * 1000;
1.27 + }
1.28 + var res = 0;
1.29 + for (var i=0; i<arr1.length; i++) {
1.30 + res += arr1[i+""] + arr2[i+""] + arr2["1".concat("")] + arr1["3".concat("")];
1.31 + }
1.32 + assertEq(res, 2423024);
1.33 +}
1.34 +testInt16();
1.35 +
1.36 +function testInt32() {
1.37 + var arr = new Int32Array(60);
1.38 + arr[0] = -50;
1.39 + for (var i=1; i<arr.length; i++) {
1.40 + arr[i] = arr[(i-1)+""] + arr["0".concat("")];
1.41 + ++arr[0];
1.42 + }
1.43 + assertEq(arr[(arr.length-1)+""], -1289);
1.44 +}
1.45 +testInt32();
1.46 +
1.47 +function testUint32() {
1.48 + function sum(arr) {
1.49 + var res = 0;
1.50 + for (var i=0; i<arr.length; i++) {
1.51 + res += arr[i+""];
1.52 + }
1.53 + return res;
1.54 + }
1.55 + var arr = new Uint32Array(100);
1.56 + for (var i=0; i<arr.length; i++) {
1.57 + arr[i] = i;
1.58 + }
1.59 +
1.60 + // Compile sum() to read int32 values.
1.61 + assertEq(sum(arr), 4950);
1.62 +
1.63 + // Add a large uint32 so that the sum no longer fits in an
1.64 + // int32. sum() should be recompiled to return a double.
1.65 + arr[50] = 0xffffeeee;
1.66 + assertEq(sum(arr), 4294967826);
1.67 +}
1.68 +testUint32();
1.69 +
1.70 +function testFloat() {
1.71 + var arr1 = new Float32Array(75);
1.72 + var arr2 = new Float64Array(75);
1.73 + arr1[0] = arr2[0] = Math.PI * 1234567.8;
1.74 +
1.75 + for (var i=1; i<75; i++) {
1.76 + arr1[i] = arr1[(i-1)+""] + arr1[0];
1.77 + arr2[i] = arr2[(i-1)+""] + arr2[0];
1.78 + }
1.79 + assertEq(arr1["74".concat("")] > 290888255, true);
1.80 + assertEq(arr1["74".concat("")] < 290888257, true);
1.81 +
1.82 + assertEq(arr2["74".concat("")] > 290888184, true);
1.83 + assertEq(arr2["74".concat("")] < 290888185, true);
1.84 +}
1.85 +testFloat();
1.86 +
1.87 +function testCanonicalNaN() {
1.88 + // NaN values have to be canonicalized. Otherwise, malicious scripts could
1.89 + // construct arbitrary Value's (due to our NaN boxing Value representation).
1.90 + var buf = new ArrayBuffer(16);
1.91 + var uint32 = new Uint32Array(buf);
1.92 + var f64 = new Float64Array(buf);
1.93 + var f32 = new Float32Array(buf);
1.94 +
1.95 + // Evil: write a JSVAL_TYPE_OBJECT type tag...
1.96 + uint32[0] = 0xffffff87;
1.97 + uint32[1] = 0xffffff87;
1.98 +
1.99 + // Make sure this value is interpreted as a double.
1.100 + for (var i=0; i<3; i++) {
1.101 + assertEq(isNaN(f64["0".concat("")]), true);
1.102 + assertEq(isNaN(f32["0".concat("")]), true);
1.103 + }
1.104 +}
1.105 +testCanonicalNaN();
1.106 +
1.107 +function testOutOfBounds() {
1.108 + var buf = new ArrayBuffer(16);
1.109 + var uint32 = new Uint32Array(buf);
1.110 +
1.111 + uint32[0] = 0;
1.112 + uint32[1] = 1;
1.113 +
1.114 + for (var i=0; i<3; i++) {
1.115 + assertEq(uint32["0".concat("")], 0);
1.116 + assertEq(uint32["1".concat("")], 1);
1.117 + assertEq(uint32["2".concat("")], 0);
1.118 + assertEq(uint32["17".concat("")], undefined);
1.119 + }
1.120 +}
1.121 +testOutOfBounds();
1.122 +
1.123 +function testStrangeIndexes() {
1.124 + var buf = new ArrayBuffer(16);
1.125 + var uint32 = new Uint32Array(buf);
1.126 +
1.127 + uint32[0] = 0;
1.128 + uint32[1] = 1;
1.129 +
1.130 + indexes = ["0", "1", "2", "3", "17", "3.5", "NaN", "undefined", "null"];
1.131 + solutions = [0, 1, 0, 0, undefined, undefined, undefined, undefined, undefined];
1.132 +
1.133 + for (var i=0; i<indexes.length; i++) {
1.134 + assertEq(uint32[indexes[i]], solutions[i]);
1.135 + }
1.136 +}
1.137 +testStrangeIndexes();
1.138 +
