nursery-non-shared-moved-gc.js

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// Small (non-shared) TypedArrays can use inline storage and can also be nursery

// allocated. Ensure Atomics functions use correct rooting and don't store the

// TypedArray's data pointer on the stack across a GC.

const INLINE_MEMORY_LENGTH = 1;

function gcValue(value) {

  return {

    valueOf() {

      minorgc();

      return value;

};

};

// Atomics.store

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  Atomics.store(ta, 0, gcValue(1));

  assertEq(ta[0], 1);

// Atomics.compareExchange

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  ta[0] = 1;

  let val = Atomics.compareExchange(ta, 0, 1, gcValue(2));

  assertEq(val, 1);

  assertEq(ta[0], 2);

// Atomics.exchange

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  ta[0] = 1;

  let val = Atomics.exchange(ta, 0, gcValue(2));

  assertEq(val, 1);

  assertEq(ta[0], 2);

// Atomics.add

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  ta[0] = 1;

  let val = Atomics.add(ta, 0, gcValue(2));

  assertEq(val, 1);

  assertEq(ta[0], 3);

// Atomics.sub

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  ta[0] = 3;

  let val = Atomics.sub(ta, 0, gcValue(2));

  assertEq(val, 3);

  assertEq(ta[0], 1);

// Atomics.and

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  ta[0] = 3;

  let val = Atomics.and(ta, 0, gcValue(1));

  assertEq(val, 3);

  assertEq(ta[0], 1);

// Atomics.or

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  ta[0] = 2;

  let val = Atomics.or(ta, 0, gcValue(1));

  assertEq(val, 2);

  assertEq(ta[0], 3);

// Atomics.xor

  let ta = new Int32Array(INLINE_MEMORY_LENGTH);

  ta[0] = 3;

  let val = Atomics.xor(ta, 0, gcValue(1));

  assertEq(val, 3);

  assertEq(ta[0], 2);