diff options
Diffstat (limited to 'js/src/jit-test/tests/typedarray/resizable-typedarray-get-elem-with-sab.js')
-rw-r--r-- | js/src/jit-test/tests/typedarray/resizable-typedarray-get-elem-with-sab.js | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/typedarray/resizable-typedarray-get-elem-with-sab.js b/js/src/jit-test/tests/typedarray/resizable-typedarray-get-elem-with-sab.js new file mode 100644 index 0000000000..236641d9a8 --- /dev/null +++ b/js/src/jit-test/tests/typedarray/resizable-typedarray-get-elem-with-sab.js @@ -0,0 +1,49 @@ +// |jit-test| --enable-arraybuffer-resizable; skip-if: !ArrayBuffer.prototype.resize||!this.SharedArrayBuffer + +const TypedArrays = [ + Int8Array, + Uint8Array, + Int16Array, + Uint16Array, + Int32Array, + Uint32Array, + Uint8ClampedArray, + Float32Array, + Float64Array, + BigInt64Array, + BigUint64Array, +]; + +function test(TA) { + const length = 4; + const byteLength = length * TA.BYTES_PER_ELEMENT; + + let rab = new SharedArrayBuffer(byteLength, {maxByteLength: byteLength}); + let actual = new TA(rab); + let expected = new TA(length); + let type = expected[0].constructor; + + for (let i = 0; i < length; ++i) { + actual[i] = type(i * i); + expected[i] = type(i * i); + } + + // In-bounds access + for (let i = 0; i < 200; ++i) { + let index = i % length; + assertEq(actual[index], expected[index]); + } + + // Out-of-bounds access + for (let i = 0; i < 200; ++i) { + let index = i % (length + 4); + assertEq(actual[index], expected[index]); + } +} + +for (let TA of TypedArrays) { + // Copy test function to ensure monomorphic ICs. + let copy = Function(`return ${test}`)(); + + copy(TA); +} |