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/ion/object-keys-00.js | 31 +++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 js/src/jit-test/tests/ion/object-keys-00.js (limited to 'js/src/jit-test/tests/ion/object-keys-00.js') diff --git a/js/src/jit-test/tests/ion/object-keys-00.js b/js/src/jit-test/tests/ion/object-keys-00.js new file mode 100644 index 0000000000..497823e2e2 --- /dev/null +++ b/js/src/jit-test/tests/ion/object-keys-00.js @@ -0,0 +1,31 @@ +// This test case is used to test the optimized code path where the computation +// of `Object.keys(...).length` no longer compute `Object.keys(...)` as an +// intermediate result. +// +// This test verifies that the result remain consistent after the optimization. + +function cmp_keys_length(a, b) { + return Object.keys(a).length == Object.keys(b).length; +} + +let objs = [ + {x:0, a: 1, b: 2}, + {x:1, b: 1, c: 2}, + {x:2, c: 1, d: 2}, + {x:3, a: 1, b: 2, c: 3}, + {x:4, b: 1, c: 2, d: 3}, + {x:5, a: 1, b: 2, c: 3, d: 4} +]; + +function max_of(o) { + return o?.d ?? o?.c ?? o?.b ?? 0; +} + +with({}) {} +for (let i = 0; i < 1000; i++) { + for (let o1 of objs) { + for (let o2 of objs) { + assertEq(cmp_keys_length(o1, o2), max_of(o1) == max_of(o2)); + } + } +} -- cgit v1.2.3