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Re: find_mem_givs SMALL_REGISTER_CLASSES patch


On Sat, Jun 27, 1998 at 09:36:51PM -0400, John Wehle wrote:
> This patch seems to improve the i386 performance of the recent
> FP benchmark posted to egcs by about 25%.  The call to memory_address_p
> is to handle find_mem_givs being called with an expression which
> isn't a valid memory reference for the machine, in which case it
> might as well record the giv.  I'm not sure if this is a useful
> theory ... hopefully someone with more knowledge will comment. :-)

Not recording givs sounds like a bad plan to me.  Have you tried
my loop patches (mark 12a to appear shortly) to see if they fix
the problem as well?


r~


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