[PATCH] D72932: [ARM] Follow AACPS standard for volatile bit-fields access width

[Oliver Stannard (Linaro) via Phabricator via cfe-commits]

ostannard added a comment.

Why are you doing this in CodeGen, rather than adjusting the existing layout code in CGRecordLowering? Doing it this way will result in AdjustAAPCSBitfieldLValue being called for every access to the bitfield, rather than just once. This is probably more fragile too, because it's spreading the logic across multiple parts of the codebase, and has to undo some of the layout done by CGRecordLowering.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D72932/new/

https://reviews.llvm.org/D72932