getprop-primitive.js

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// |jit-test| --ion-warmup-threshold=50

setJitCompilerOption("offthread-compilation.enable", 0);

gcPreserveCode();

var testSet1 = [1, "", Symbol("a"), true];

var testSet2 = [1, "", Symbol("a"), true, { bar: 5 }];

Number.prototype.bar = 1;

String.prototype.bar = 2;

Symbol.prototype.bar = 3;

Boolean.prototype.bar = 4;

function assertEqIf(prev, curr, expected) {

    // Branch pruning absolutely want to get rid of the next branch

    // which causes bailouts, so we forbid inlining of this function.

    with({}){}

    if (prev) {

        assertEq(curr, expected);

        return false;

    return true;

var f;

var template = function (set) {

    var lastX = 0, x = 0, i = 0, y = 0;

    var cont = true;

    while (cont) { // OSR here.

        for (var i = 0; i < set.length; i++) {

            x = x + (inIon() ? 1 : 0);

            if (set[i].placeholder != set[(i + 1) % set.length].placeholder)

                y += 1;

        // If we bailout in the inner loop, then x will have a smaller value

        // than the number of iterations.

        cont = assertEqIf(lastX > 0, x, set.length);

        if (inIon())

            lastX = x;

        x = 0;

    return y;

// Set 1, Non existing properties.

f = eval(`(${template})`.replace(".placeholder", ".foo"));

f(testSet1);

// Set 2, Non existing properties.

f = eval(`(${template})`.replace(".placeholder", ".foo"));

f(testSet2);

// Set 1, Existing properties.

f = eval(`(${template})`.replace(".placeholder", ".bar"));

f(testSet1);

// Set 2, Existing properties.

f = eval(`(${template})`.replace(".placeholder", ".bar"));

f(testSet2);