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Re: loop unrolling and AltiVec register utilization



On Fri, 29 Oct 2004, Stan Jou wrote:

> gcc 3.3 re-ordered the instructions the way it wants.
> Since it seems like a direct mapping from the AltiVec C to AltiVec assembly
> for what I need to do, I plan to re-write the part in in-line assembly.

Alternatively, you can force gcc not to schedule instructions with the
flags "-O1 -fno-schedule-insns -fno-schedule-insns2". You wouldn't want to
compile everything like this, but for carefully handcrafted pieces of code
you can tell GCC not to get in your way.

  Holger
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 >Re: loop unrolling and AltiVec register utilization (From: Stan Jou <email@hidden>)



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