[fpc-devel] sse2 registers

Vincent Snijders vsnijders at quicknet.nl
Fri Oct 6 12:02:46 CEST 2006


Daniƫl Mantione schreef:
> 
> Op Fri, 6 Oct 2006, schreef Vincent Snijders:
> 
>> They are not used, because the same body contains a procedure call and the
>> %xmm0 registers are volatile. See also the notes with issue 7533:
>> http://www.freepascal.org/mantis/view.php?id=7533
> 
> This is solveable with SSA, so a variable can be in a register in one 
> part of the procedure and in memory in another part of the procedure. It 
> should be a matter of being patient.
> 

Yes, that is the reason, why the issue is still open after the explanation.

Do you have an idea if SSA with program control structures is a planned for 2.2.0 or 
  later(2.4.0)?

Vincent



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