function foo(a, i) { return [a[i], a[i + 1], a[i + 2], a[i + 3], a[i + 4], a[i + 5], a[i + 6], a[i + 7]]; } noInline(foo); function arraycmp(a, b) { if (a.length != b.length) return false; for (var i = 0; i < a.length; ++i) { if (a[i] != b[i]) return false; } return true; } for (var i = 0; i < 100000; ++i) { var array = []; var offset = i & 3; for (var j = 0; j < offset; ++j) array.push(42); var result = foo(array.concat([1, 2, 3, 4, 5, 6, 7, 8]), offset); if (!arraycmp(result, [1, 2, 3, 4, 5, 6, 7, 8])) throw "Error: bad result (1..8): " + result; } var result = foo([1, 2, 3, 4, 5, 6, 7], 0); if (!arraycmp(result, [1, 2, 3, 4, 5, 6, 7, void 0])) throw "Error: bad result (1..7): " + result; var result = foo([1, 2, 3, 4, 5, 6], 0); if (!arraycmp(result, [1, 2, 3, 4, 5, 6, void 0, void 0])) throw "Error: bad result (1..6): " + result; var result = foo([1, 2, 3, 4, 5], 0); if (!arraycmp(result, [1, 2, 3, 4, 5, void 0, void 0, void 0])) throw "Error: bad result (1..5): " + result; var result = foo([1, 2, 3, 4], 0); if (!arraycmp(result, [1, 2, 3, 4, void 0, void 0, void 0, void 0])) throw "Error: bad result (1..4): " + result; var result = foo([1, 2, 3], 0); if (!arraycmp(result, [1, 2, 3, void 0, void 0, void 0, void 0, void 0])) throw "Error: bad result (1..3): " + result; var result = foo([1, 2], 0); if (!arraycmp(result, [1, 2, void 0, void 0, void 0, void 0, void 0, void 0])) throw "Error: bad result (1..2): " + result; var result = foo([1], 0); if (!arraycmp(result, [1, void 0, void 0, void 0, void 0, void 0, void 0, void 0])) throw "Error: bad result (1..1): " + result; var result = foo([], 0); if (!arraycmp(result, [void 0, void 0, void 0, void 0, void 0, void 0, void 0, void 0])) throw "Error: bad result (1..1): " + result;