[PATCH] D29295: Move core RDF files from lib/Target/Hexagon to CodeGen

Krzysztof Parzyszek via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Feb 1 06:58:38 PST 2017

kparzysz marked 2 inline comments as done.
kparzysz added inline comments.

Comment at: lib/CodeGen/RDFLiveness.cpp:19
+// Dibyendu Das, Ramakrishna Upadrasta, Benoit Dupont de Dinechin.
+// "Efficient Liveness Computation Using Merge Sets and DJ-Graphs."
MatzeB wrote:
> There is an alternative algorithm floating around, for example https://reviews.llvm.org/D28934
> Which I usually prefer because it is simpler and doesn't require dominance tree construction. But I may be biased here :)
The algorithm you linked to is for building/updating SSA, this one is for calculating block live-ins from existing SSA.



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