bug2029293.js - mozsearch

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// |jit-test| skip-if: helperThreadCount() === 0

// This test was triggering an issue when multiple threads concurrently

// requested synchronous tier-up of the same function in a shared module.

setPrefValue("wasm_lazy_tiering", true);

setPrefValue("wasm_lazy_tiering_synchronous", true);

var body = "";

for (var i = 0; i < 1500; i++) {

  body += "(local.set 0 (i32.add (local.get 0) (i32.const 1)))\n";

var wat = `

(module

  (table $t 1 funcref)

  (func $f

    (local i32)

    ${body}

  (elem (i32.const 0) func $f)

  (export "t" (table $t))

`;

var bytes = wasmTextToBinary(wat);

var mod = new WebAssembly.Module(bytes);

setSharedObject(mod);

var ins0 = new WebAssembly.Instance(mod);

var f0 = ins0.exports.t.get(0);

f0();

var workerCode = `

  setPrefValue("wasm_lazy_tiering", true);

  setPrefValue("wasm_lazy_tiering_synchronous", true);

  setPrefValue("wasm_lazy_tiering_level", 9);

  var mod = getSharedObject();

  var ins = new WebAssembly.Instance(mod);

  var f = ins.exports.t.get(0);

  f();

`;

for (var w = 0; w < 8; w++) {

  evalInWorker(workerCode);