Debunking The Expensive Exported-Function Call Myth
Wed Mar 16 03:20:25 CET 2005
On 09 Mar 2005 17:51:29 +0100, Luke Gorrie <luke@REDACTED> wrote:
> then the optimized version (using Core Erlang syntax for
> <Multiple,Values> in registers syntax) is something like:
> foo() -> <A, B> = bar(), ...code...
> bar() -> <1, 2>.
Very cool! I did not know about that!
I think I erred in providing the easiest possible example to shoot down :)
An alternate example is that you could determine the return type of a
local function via "type discovery," then propagate that information
to the calling function. That is, if you knew a local function always
returned a list, then specialized code could be used to process that
value after it is returned.
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