Bradley Lucier <luc...@math.purdue.edu> writes:

> and RBX is used by XLAT, XLATB. 

XLAT* is generally not used anymore, certainly not in gcc generated code.

> Are 12 registers not enough, in principle, to do scheduling before
> register allocation? 

You want to limit gcc to only 12 registers?

> I was getting a 15% speedup on some numerical

That would assume that only using 12 registers doesn't cause
slowdowns elsewhere, which is likely in fact.

-Andi

-- 
a...@linux.intel.com -- Speaking for myself only.

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