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

Quentin Colombet via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue May 15 16:25:16 PDT 2018

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qcolombet added a comment.

I was thinking about this the other way around: if all the subreg of a register are saved that doesn’t imply the register itself is saved.
The way you describe with adding the sub regs works great. I thought you wanted the other way :P


https://reviews.llvm.org/D46315

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