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// Int32 values, including minimum, maximum, and values around zero.
const values = [
[0x8000_0000|0, -0x80000000n],
[0x8000_0001|0, -0x7fffffffn],
[0x8000_0002|0, -0x7ffffffen],
[0x8000_0003|0, -0x7ffffffdn],
[-3, -3n],
[-2, -2n],
[-1, -1n],
[0, 0n],
[1, 1n],
[2, 2n],
[3, 3n],
[0x7fff_fffd, 0x7fff_fffdn],
[0x7fff_fffe, 0x7fff_fffen],
[0x7fff_ffff, 0x7fff_ffffn],
];
const m = new WebAssembly.Module(wasmTextToBinary(`(module
(func (export "toInt32") (param i64) (result i32)
local.get 0
i32.wrap_i64
)
(func (export "toInt64") (param i64) (result i64)
local.get 0
)
)`));
const {
toInt32,
toInt64,
} = new WebAssembly.Instance(m).exports;
function test() {
for (let i = 0; i < 100; ++i) {
assertEq(toInt32(BigInt(INT32)), INT32);
assertEq(toInt64(BigInt(INT32)), INT64);
}
}
for (let [int32, int64] of values) {
let fn = Function(
`return ${test}`
.replaceAll("INT32", int32)
.replaceAll("INT64", int64 + "n")
)();
fn();
}