[PATCH] [SDAG] Introduce a combined set to the DAG combiner which tracks nodes which have successfully round-tripped through the combine phase, and use this to ensure all operands to DAG nodes are visited by the combiner, even if they are only added...
chandlerc at gmail.com
Thu Jul 24 05:32:29 PDT 2014
FYI, discussed this with some folks on IRC too and they seem happy with it.
However, I want to land http://reviews.llvm.org/D4654 (or something similar) first as that will remove the regressions w.r.t. sext from this change.
More information about the llvm-commits