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Re: [perl #76438] peephole optimiser could prune more dead code

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From:
Eric Brine
Date:
July 11, 2010 21:51
Subject:
Re: [perl #76438] peephole optimiser could prune more dead code
Message ID:
AANLkTil7emjUI7LuXjcw3dxEnndggpMT8mM5furNEbVI@mail.gmail.com
On Sun, Jul 11, 2010 at 10:22 PM, David Golden <xdaveg@gmail.com> wrote:

> I'm suggesting that we disclaim any implicit guarantee that the
> compiler won't optimize away expressions that have side effects when
> evaluated.
>

Without that guarantee,

my $x = f()
   or DEBUG && warn(...);
return $x;

would be buggy. Dunno if that matters
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