[PATCH] D29866: [PDSE] Add PDSE.

[Daniel Berlin via Phabricator via llvm-commits]

dberlin added a comment.

I'm going to start looking at this in detail today or tomorrow.
Adding Tobias since i believe he asked what we have that will depend on a postdom tree.

This optimization depends on a complete and correct postdom tree
(also, recursively, because it depends on IDFCalculator, which also depends on the path properties of the postdom tree.  ADCE attempts to hack around that fact, it's much harder to do here)


Repository:
  rL LLVM

https://reviews.llvm.org/D29866