You're giving the optimiser too much credit

Ok ... and I'm somewhat relieved about that :-)
But can ($var || 2) ever be false ?

The code provided initially by the OP was: 
if ($var || 2) {
    # do stuff here
}
else {
    # won't do stuff 
}

[download]
If ($var || 2) is inevitably true, then that code is a rather silly (even obfuscating) construct.
All that was really needed was: 
$var || 2;
# do stuff here

[download]
or simply: 
$var;
# do stuff here

[download]
Is it safe for the OP to make such alterations, or do I overlook something ?
Afterthought: I'm actually now wondering whether the original code was in fact ($var | 2) and not ($var || 2)

Cheers,
Rob

In reply to Re^4: Compiler Optimization by syphilis
in thread Compiler Optimization by three18ti

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.