373672 - Round-trip change because constant folding doesn't see into parens

Status: RESOLVED DUPLICATE of bug 461269

(Core :: JavaScript Engine, defect)

Description

[Jesse Ruderman]

js> f = function() { return 2 + (3); }
function () {
    return 2 + 3;
}

js> eval("" + f)
function () {
    return 5;
}

Comment 1

[Jesse Ruderman]

Most of jsfunfuzz's "mismatch" complaints are due to incomplete constant folding.  Unlike most of the other known bugs, it's hard for jsfunfuzz to ignore this kind of thing without accidentally ignoring many other things, because the syntax involved is so simple and generic.

How hard is it to fix this?

Comment 2

[Brendan Eich [:brendan]]

Could dup this, but I left it dep. Someone please grab bug 461269.

/be

Comment 3

[Jason Orendorff [:jorendorff]]

In current tracemonkey tip:

js> f = function() { return 2 + (3); }
function () {
    return 5;
}