On 03/06/2011 5:16 AM, Noel Grandin wrote:
Hi
Maybe I came late to the discussion, and I've missed this bit, but has it been
discussed already that the functional
language solution is off the table?
By functional language solution, I mean that there is no reference operator, and all
arguments are passed "by copy"
semantically.
Yeah. That's mostly off the table. Sorry. We started there years ago but
have long since moved to accept the requirement of being able to
differentiate shared-reference and copy as concepts.
This passes the performance burden from the programmer to the compiler, but
allows the compiler to grow more
intelligence incrementally.
On a more general note, it is an explicit anti-goal to have performance
depend heavily on a clever compiler. Performance should (within some
moderate set of "totally obvious, possibly language-mandated"
optimizations) be broadly predictable whether or not the compiler does
something clever.
-Graydon
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