[PATCH] D32201: [RALLOC] Increase CSR cost in RegAllocGreedy to favour splitting over CSR first use

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

To be concrete here. I'd like to understand why we can have the regalloc to figure out what is the cost of splitting a CSR the first time (which is what it boils down to).


Repository:
  rL LLVM

https://reviews.llvm.org/D32201