bug-2082083.js - mozsearch

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// |jit-test| --no-ion

// The test skipped in debug configurations because it's very slow.

if (getBuildConfiguration("debug")){

  quit();

// The test requires baseline (but not Ion) and GC zeal.

if (!getBuildConfiguration("has-gczeal") ||

    !getJitCompilerOptions()['baseline.enable']) {

  quit();

gczeal(0);

setJitCompilerOption("baseline.warmup.trigger", 10);

gcPreserveCode();

const A = newGlobal({newCompartment: true});

const B = newGlobal({newCompartment: true});

A.B = B; B.A = A;

A.eval(`

  var N = 1200, keys = Object.create(null), atoms, indices;

  var bases = [], deps = [];

  function makeString(i) {

    const chars = new Array(80).fill(71);

    chars[0]=82;chars[1]=65;chars[2]=67;chars[3]=69;

    for(let k=0;k<8;k++){chars[4+k]=65+(i&15);i>>>=4;}

    return String.fromCharCode(...chars);

  for (let i=0; i<2*N; i++) keys[makeString(i)]=i;

  atoms = Object.keys(keys);

  indices=atoms.map(s=>getAtomMarkIndex(s));

  function prime() {for(let i=0;i<2*N;i+=2)Reflect.defineProperty(keys,makeString(i),{value:0});}

  function wrappers() {

    bases=[];deps=[];B.copies.length=0;

    for(let i=0;i<2*N;i+=2){

      let s=makeString(i);B.receive(s);let dep=s.slice(1);

      Reflect.defineProperty(keys,s,{value:0});bases.push(s);deps.push(dep);

  function drop() {keys=null;atoms=[];bases=[];deps=[];}

`);

B.eval(`

  var copies=[], readers=[];

  function receive(s){copies.push(s);}

  for(let i=0;i<A.N;i++){

    Object.defineProperty(globalThis,'__weakTmp',{value:A.atoms[2*i+1],writable:true,configurable:true});

    let f=new Function('return __weakTmp;');

    for(let j=0;j<130;j++)f();

    readers.push(f);globalThis.__weakTmp=null;delete globalThis.__weakTmp;

`);

gc();

let lost=-1, round=-1;

for(round=0; round<1000; round++) {

  A.prime();

  gczeal(25,1000000000);

  schedulezone(B);schedulezone('atoms');startgc(1000000);

  assertEq(gcstate(A),'NoGC');

  assertEq(gcstate(B),'MarkBlackAndGray');

  A.wrappers();minorgc();

  unsetgczeal(25);finishgc();

  for(let i=0;i<A.N;i++) {

    if(getAtomMarkColor(B,A.indices[2*i+1])==='white') {lost=i;break;}

  if(lost!==-1) {

    break;

assertEq(lost, -1);