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/gc/weakmap-nursery-value.js | 35 +++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 js/src/jit-test/tests/gc/weakmap-nursery-value.js (limited to 'js/src/jit-test/tests/gc/weakmap-nursery-value.js') diff --git a/js/src/jit-test/tests/gc/weakmap-nursery-value.js b/js/src/jit-test/tests/gc/weakmap-nursery-value.js new file mode 100644 index 0000000000..9c61b56632 --- /dev/null +++ b/js/src/jit-test/tests/gc/weakmap-nursery-value.js @@ -0,0 +1,35 @@ +// Bug 1715471 + +// This test relies on triggering GC at precise points. GC zeal modes +// interfere with this. +gczeal(0); + +// This test requires enqueueMark, which is only available in a debugging +// build. +if (!this.enqueueMark) quit(0); + +var wm = new WeakMap(); + +// Force materialization of the map struct. Otherwise it would be allocated +// black during the incremental GC when we do wm.set. +wm.set({}, {}); + +var tenuredKey = Object.create(null); +gc(); // Tenure the WeakMap and key. + +// Enter the GC, since otherwise the minor GC at the beginning would tenure our +// value before it had a chance to be entered into the ephemeron edge list. +startgc(1); +while (gcstate() === "Prepare") gcslice(1); + +// Create a WeakMap entry with a value in the nursery. +var nurseryValue = Object.create(null); +wm.set(tenuredKey, nurseryValue); + +// We want to mark the weakmap first, before the key or value are marked, so +// that the tenuredKey -> nurseryValue edge will be added to the ephemeron edge +// table. +enqueueMark(wm); + +gcslice(1000); +minorgc(); -- cgit v1.2.3