[LLVMdev] Sparse propagation framework

Mark Lacey superoptimizer at gmail.com
Wed May 27 17:26:25 PDT 2009

Hi All,

I'm relatively new to LLVM (but not optimizing compilers), and have been
reading docs and browsing code.

I noticed in the 2.4 release notes that a sparse propagation framework had
been added based on the SCCP algorithm. I might have a need for exactly this
kind of framework in order to prototype an analysis I have in mind.

I also noticed, however, that this doesn't appear to be in use at this time.

Are there plans to reimplement SCCP and/or other analyses/optimizations
using this framework? Is the framework known to generally work? I searched
the bug database but didn't find anything that looked related.


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