[PATCH] D38597: [PEI] Remove required properties and use 'if' instead of std::function

[Reid Kleckner via Phabricator via llvm-commits]

rnk added a comment.

I know I've only waited a day for @qcolombet and that's not much time, but I'm going to land this because the requirements checking change actually doesn't change our current functionality. Before this change, UsesCalleeSaves is initialized to false, so PEI doesn't require NoVRegs. This will actually give us better runtime checking.


https://reviews.llvm.org/D38597