[PATCH] D46315: [RegUsageInfoCollector] Fix handling of callee saved registers with CSR optimization.

[Ulrich Weigand via Phabricator via llvm-commits]

uweigand added a comment.

In https://reviews.llvm.org/D46315#1105144, @qcolombet wrote:

> An alternative of proving that, would be to have the target explicitly say whether or not their register units covers the full registers.


Doesn't the target already do this?  At least there's a CoveredBySubRegs flag in the Register .td class ...


https://reviews.llvm.org/D46315