[PATCH 3/3] Optimize 64-bit mpn_add_N and mpn_sub_N for sparc T3 and later.
davem at davemloft.net
Tue Mar 5 20:44:46 CET 2013
From: Torbjorn Granlund <tg at gmplib.org>
Date: Tue, 05 Mar 2013 13:54:37 +0100
> David Miller <davem at davemloft.net> writes:
> * mpn/sparc64/ultrasparct3/add_n.asm: New file.
> * mpn/sparc64/ultrasparct3/sub_n.asm: New file.
> There is currently no mpn/sparc64/ultrasparct3, only ultrasparct1. For
> which CPUs are these new add_n/sub_n intended? Why not also for for
> other CPUs?
It gets added by patch #2 which I just resent.
These routines are for T3 and later, as T3 is where the addxccc
instructions get introduced.
> I suppose configure.ac changes are needed too, if these files are to be
> used. (Perhaps such changes are part of the missing 2/3 patch set?)
Yes, there are from the missing #2.
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