[LLVMdev] LLVM opt GVN.cpp (original) (raw)

GangRyung Uh guh at boisestate.edu
Wed Oct 1 09:57:01 PDT 2014


I just googled and found some efforts to implement SSAPRE (1997 PLDI - Fred Chow, et al.) which is dated 2011 mailing list and GVN-PRE (university of utah). I wonder whether any well-recognized algorithm(s) and development for PRE on ssa is available for LLVM.

On Wed, Oct 1, 2014 at 10:45 AM, Bob Wilson <bob.wilson at apple.com> wrote:

> On Sep 30, 2014, at 10:37 PM, GangRyung Uh <guh at boisestate.edu> wrote: > > > Hi, > > I wonder what PRE algorithm is used for the GVN.cpp in LLVM. Any reference will be appreciated. GVN does not implement any real PRE algorithm. There is some ad-hoc code to catch some simple cases, but that’s all.

-- Gang-Ryung Uh, Associate Professor Department of Computer Science College of Engineering, Boise State Univerisity tel: 1 208 426-5691 e-mail:guh at boisestate.edu http://cs.boisestate.edu/~uh -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20141001/2d9b25eb/attachment.html>



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