[PATCH] D68060: [RISCV] Materialization of 64-bit mask immediate

[Alex Bradbury via Phabricator via llvm-commits]

asb added a comment.

Plus our dev meeting coding lab last year <https://www.lowrisc.org/llvm/devmtg18/> stepped through a similar optimisation, so we really should land it.

Can you please add some more targeted imm.ll tests and to rv32i-aliases-valid.s and rv64i-aliases-valid.s.

Although it could be done in a follow-up commit, I'd be supportive of handling the left-shift case in this commit as well.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D68060/new/

https://reviews.llvm.org/D68060