craig.topper added inline comments.

================
Comment at: llvm/include/llvm/IR/IntrinsicsRISCV.td:1418
 
+  def int_riscv_vreinterpret_v
+        : DefaultAttrsIntrinsic<[llvm_anyvector_ty],
----------------
craig.topper wrote:
> Do we need an intrinsic?
> 
> m1 -> mask  is bitcast m1 vscale type to <vscale x 64 x i1> and a 
> llvm.experimental.vector.extract
> mask -> m1 is llvm.experimental.vector.insert to <vscale x 64 x i1> and a 
> bitcast.
oops there's no experimental in the insert/extract names.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149642/new/

https://reviews.llvm.org/D149642

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