[PATCH] Cilk Keywords (_Cilk_spawn and _Cilk_sync) for C (and C++)

Iyer, Balaji V balaji.v.iyer@intel.com
Wed Oct 23 19:57:00 GMT 2013


> 
> >> Can you take a look at calls.c::special_function_p and determine if we need
> to
> >> do something special for spawn here?
> >>
> >
> > I will look into it and let you know.
> Any word on this?
> 

Hi Jeff,
	I looked into this function and from what I can tell, it is used to mark certain functions (e.g. builtin functions) as special and thus don't do special optimizations on them like a regular function.  The thing is, the spawnee (the function being spawned) can be pretty much any regular function. The compiler doesn't even touch inside the function. The compiler inserts specific Cilk function calls in the spawner and transplants the function . The only major restriction I know is that the frame pointer needs to be used and that I mark as I mentioned above.  

	Is there anything you were thinking about that I missed?

Thanks,

Balaji V. Iyer.


> jeff



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