strict aliasing benefit examples

[Robert Dewar]

Richard Kenner wrote:
>> Since humans have to do a bit of alias analysis when maintaining
>> or writing code, the extra clarity of pulling things into temporary
>> variables isn't wasted.
> 
> Sorry, I don't follow.  Why should we want to do "a bit of alias analysis"
> when maintaining or writing code?  It would seem a far better practice to
> leave that to the optimizer and use local variables only when necessary
> for clarify.

And while we are at it, write code in C, instead of some ill-defined
variant of it!