On Tuesday, 26 June 2012 at 16:52:48 UTC, Benjamin Thaut wrote:
Am 26.06.2012 18:44, schrieb Timon Gehr:
On 06/26/2012 06:05 PM, Benjamin Thaut wrote:
Is the compiler smart enough to optimize away a function
pointer I
created localy just so I can cast it?
[…]
You can examine the assembly code. DMD is perhaps not smart
enough (it
is unable to inline directly called function literals, so I am
not
optimistic.) LDC and GDC should certainly optimize it out.
The more I get into this, the more I get the feeling that all
this "D can be used without a GC" is just a marketing trick to
get C++ guys to use D.
This has nothing to do with the GC, just with the compiler
turning an indirect jump to a statically known address into a
direct one. Every decent compiler should optimize it away, and
even if it doesn't, it still won't kill you in 99.9% of the use
cases.
David
