bug-1905256.js - mozsearch

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// |jit-test| skip-if: !hasFunction["gczeal"]

gczeal(0);

gc();

let key = {};

let value = {}

let wm = new WeakMap();

wm.set(key, value);

grayRoot()[0] = wm;

addMarkObservers([key, wm, value])

wm = undefined;

value = undefined;

// Enable incremental marking verification.

gczeal(11);

// Yield after root marking.

gczeal(8);

// Start an incremental collection.

startgc(1);

assertEq(gcstate(), "Mark");

// Clear key reference, marking it via the prebarrier.

key = undefined;

// Verify incremental marking and finish the collection incrementally.

while (gcstate() !== "NotActive") {

  gcslice(1);

gczeal(0);

assertEq(getMarks().join(), "black,gray,gray");