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Re: [PATCH][PPC] Remove unnecessary local variable mptwo
On Thu, Jan 10, 2013 at 09:14:17AM -0800, Richard Henderson wrote:
> >How does this impact the generated code?
> >How does that impact mpatan's performance?
> It's an initialized non-static local variable that has to be
> constructed on every invocation of __inv. Replacing that with a
> reference to a hidden global variable has got to be an improvement.
Right, that was the rationale. I haven't done an actual comparison of
the generated code since it's quite straightforward, but I can do that
tomorrow if necessary.