From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- .../ion/spreadcall-not-optimized-static-5b.js | 30 ++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 js/src/jit-test/tests/ion/spreadcall-not-optimized-static-5b.js (limited to 'js/src/jit-test/tests/ion/spreadcall-not-optimized-static-5b.js') diff --git a/js/src/jit-test/tests/ion/spreadcall-not-optimized-static-5b.js b/js/src/jit-test/tests/ion/spreadcall-not-optimized-static-5b.js new file mode 100644 index 0000000000..1302cfbedf --- /dev/null +++ b/js/src/jit-test/tests/ion/spreadcall-not-optimized-static-5b.js @@ -0,0 +1,30 @@ +// Tests when JSOP_OPTIMIZE_SPREADCALL can't be applied during the initial +// Ion compilation. + +// JSOP_OPTIMIZE_SPREADCALL can be optimised when the following conditions +// are fulfilled: +// (1) the argument is an array +// (2) the array has no hole +// (3) array[@@iterator] is not modified +// (4) the array's prototype is Array.prototype +// (5) Array.prototype[@@iterator] is not modified +// (6) %ArrayIteratorPrototype%.next is not modified + +function add(a, b) { + return a + b; +} + +// Array.prototype[@@iterator] was modified. +function test() { + var ArrayPrototypeIterator = Array.prototype[Symbol.iterator]; + Array.prototype[Symbol.iterator] = function() { + return ArrayPrototypeIterator.call([3, 4]); + }; + function fn(...rest) { + return add(...rest); + } + for (var i = 0; i < 2000; ++i) { + assertEq(fn(1, 2), 7); + } +} +test(); -- cgit v1.2.3