From 26a029d407be480d791972afb5975cf62c9360a6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 19 Apr 2024 02:47:55 +0200 Subject: Adding upstream version 124.0.1. Signed-off-by: Daniel Baumann --- js/src/jit-test/tests/arguments/access-formals.js | 44 +++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 js/src/jit-test/tests/arguments/access-formals.js (limited to 'js/src/jit-test/tests/arguments/access-formals.js') diff --git a/js/src/jit-test/tests/arguments/access-formals.js b/js/src/jit-test/tests/arguments/access-formals.js new file mode 100644 index 0000000000..a63098500c --- /dev/null +++ b/js/src/jit-test/tests/arguments/access-formals.js @@ -0,0 +1,44 @@ +function g1(x, args) { + args[0] = 88; +} + +// We assume we can optimize arguments access in |f|. +// +// Then the apply-call invalidates the arguments optimization, +// and creates a real arguments object. +// +// Test that x and y fetch the values from the args object when +// that happens. +function f1(x, y, o) { + var res = 0; + for (var i=0; i<50; i++) { + res += x + y; + if (i > 10) + o.apply(null, arguments); + } + return res; +} + +var o1 = {apply: g1}; +assertEq(f1(3, 5, o1), 3630); +assertEq(f1(3, 5, o1), 3630); + +// In strict mode, the arguments object does not alias formals. +function g2(x, args) { + args[0] = 88; +} + +function f2(x, y, o) { + "use strict"; + var res = 0; + for (var i=0; i<50; i++) { + res += x + y; + if (i > 10) + o.apply(null, arguments); + } + return res; +} + +var o2 = {apply: g2}; +assertEq(f2(3, 5, o2), 400); +assertEq(f2(3, 5, o2), 400); -- cgit v1.2.3