Ask an ye shall receive. From the .cpp file:
//
=
=
=----------------------------------------------------------------------
===//
//
// This pass eliminates machine instruction PHI nodes by inserting copy
// instructions, using an intelligent copy-folding technique based on
// dominator information. This is technique is derived from:
//
// Budimlic, et al. Fast copy coalescing and live-range
identification.
// In Proceedings of the ACM SIGPLAN 2002 Conference on Programming
Language
// Design and Implementation (Berlin, Germany, June 17 - 19, 2002).
// PLDI '02. ACM, New York, NY, 25-32.
// DOI= http://doi.acm.org/10.1145/512529.512534
//
//
=
=
=----------------------------------------------------------------------
===//
Basically, it's PHI elimination with built-in coallescing.
--Owen
On Mar 24, 2008, at 11:17 PM, Christopher Lamb wrote:
> Can you describe quickly (or point to references for the inclined)
> what this pass will do and what other stuff it might enable for
> LLVM? I'm just curious.
>
> --
> Christopher Lamb
>
>
>
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