recover.js - mozsearch

Enable keyboard shortcuts

// |jit-test| --canonicalize-nan-at-uses=on; --ion-limit-script-size=off

// See ion/dce-with-instructions.js for the setup to test recover instructions.

setJitCompilerOption("baseline.warmup.trigger", 9);

setJitCompilerOption("ion.warmup.trigger", 20);

// Prevent GC from cancelling/discarding Ion compilations.

gczeal(0);

load(libdir + "nans.js");

testWithFloatTypedArrays((FloatArray, UintArray, NaNs) => {

  var f = new FloatArray(1);

  var u = new UintArray(f.buffer);

  // Write a NaN value (with a payload).

  u[0] = NaNs[0];

  var uceFault = function (i) {

    if (i > 98)

      uceFault = function (i) { return true; };

    return false;

  var uceFault_sqrt = eval(`(${uceFault})`.replace("uceFault", "uceFault_sqrt"));

  function rsqrt_number(f, i) {

    var x = Math.sqrt(f[0]);

    if (uceFault_sqrt(i) || uceFault_sqrt(i)) {

      assertEq(x, NaN);

    assertRecoveredOnBailout(x, true);

  var max = 200;

  for (var j = 100 - max; j < 100; j++) {

    with ({}) ; // Do not Ion-compile this loop.

    var i = j < 2 ? (Math.abs(j) % 50) + 2 : j;

    rsqrt_number(f, i);

});