[PATCH] D154744: [RISCV] Don't allow X0 to be used for 'r' constraint in inline assembly

[Alex Bradbury via Phabricator via llvm-commits]

asb accepted this revision.
asb added a comment.
This revision is now accepted and ready to land.

It feels like the "better" solution would be to introduce a new constraint for GPRs other than X0. But I guess there's not a huge advantage, and we've got the precedent of GCC's behaviour so this is probably the best we can do. LGTM.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D154744/new/

https://reviews.llvm.org/D154744