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

[Quentin Colombet via Phabricator via llvm-commits]

qcolombet added a comment.

Just reread what you said, you indeed want the other way.
The problem is that the big register is not necessarily covered by the sub regs. So you have to check for that.


https://reviews.llvm.org/D46315