[PATCH] D66576: [Regalloc][WIP] Increase CSR cost in RegAllocGreedy to favour splitting/spill over CSR first use

[Dávid Bolvanský via Phabricator via llvm-commits]

xbolva00 added a comment.

Tested on x86-64, -O3, spec 2006. Observed small improvements here and there.. Overall spec int score +0.2.

bzip possibly regressed a bit.. 1%. But it could be noise..

Without patch
347  346 346

With patch
351  351 352


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66576/new/

https://reviews.llvm.org/D66576