[PATCH] [CodeGenPrepare] Improved logic to speculate calls to cttz/ctlz.

Tue Jan 6 09:43:36 PST 2015

In http://reviews.llvm.org/D6853#105747, @hfinkel wrote:

> LGTM.
>
> On PPC64, zext is not generally free, but is free after ctlz. We can deal with that later, however.

Thanks for the quick review Hal!
Committed revision 225274.

-Andrea

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http://reviews.llvm.org/D6853

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