Source/JavaScriptCore/tests/stress/wasm-locals.js

//@ skip

function shouldBe(actual, expected) {
    if (actual !== expected)
        throw new Error('bad value: ' + actual);
}

/*
wasm/locals.wasm is generated by pack-asmjs <https://github.com/WebAssembly/polyfill-prototype-1> from the following script:

function asmModule(global, env, buffer) {
    "use asm";

    function sum(x, y) {
        x = x | 0;
        y = y | 0;
        var result = 0;
        result = (x + y) | 0;
        return result | 0;
    }

    function add1(x) {
        x = x | 0;
        return (x + 1) | 0;
    }

    function testSetLocalExpression1() {
        var x = 0;
        return (x = 2);
    }

    function testSetLocalExpression2() {
        var x = 0;
        x = 1;
        return (x + (((x = 3) + x) | 0)) | 0;
    }

    function testSetLocalExpression3() {
        var x = 0;
        x = 1;
        return (x + (((x = ((x + 1) | 0)) + x) | 0)) | 0;
    }

    return {
        sum: sum,
        add1: add1,

        testSetLocalExpression1: testSetLocalExpression1,
        testSetLocalExpression2: testSetLocalExpression2,
        testSetLocalExpression3: testSetLocalExpression3,
    };
}
*/

var module = loadWebAssembly("wasm/locals.wasm");

shouldBe(module.sum(12, 30), 42);
shouldBe(module.add1(42), 43);

shouldBe(module.testSetLocalExpression1(), 2);
shouldBe(module.testSetLocalExpression2(), 7);
shouldBe(module.testSetLocalExpression3(), 5);