Re: expression function bug or think?

["Yannick Duchêne (Hibou57)" <yannick_duchene@yahoo.fr>]

Le Thu, 16 Jun 2011 17:56:32 +0200, Adam Beneschan <adam@irvine.com> a  
écrit:
> However, this is the kind
> of thing that's easy to screw up in a compiler.  You have a tree
> representing the conditional expression, and then you try to rearrange
> the nodes in the tree in order make the code run faster and avoid
> redundant computations, and if you don't do it right then something
> that was supposed to be evaluated conditionally gets moved so that
> it's evaluated before the condition is checked, and then your code
> blows up.

There is no formal proofs the applied transformations are valid ?


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