(j3.2006) [MPI3 Fortran] Effect of volatile

N.M. Maclaren nmm1
Thu Jan 8 11:06:16 EST 2009


On Dec 23 2008, Michael Ingrassia wrote:
>
>Since Fortran hasn't had END BLOCK statements until now I guess there's
>no way to survey whether all vendors flush registers and set up barriers
>to code motion at an END BLOCK.
>
>>While this might work as a 
>>practical matter, I don't think the language semantics requires that.  
>
>Could the semantics require that, in principle ?    

Not without major changes to the specification model, no.


Regards,
Nick Maclaren,
University of Cambridge Computing Service,
New Museums Site, Pembroke Street, Cambridge CB2 3QH, England.
Email:  nmm1 at cam.ac.uk
Tel.:  +44 1223 334761    Fax:  +44 1223 334679





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