[PATCH] D150265: [AArch64][SME2/SVE2p1] Add predicate-as-counter intrinsics for while*

[Sander de Smalen via Phabricator via llvm-commits]

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These intrinsics are used to implement the while intrinsics that result
in a predicate-as-counter value, e.g.

  __attribute__((arm_streaming))
  svcount_t svwhilelt_c8(int64_t rn, int64_t rm, uint64_t vl)

As described in https://github.com/ARM-software/acle/pull/217


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D150265

Files:
  llvm/include/llvm/IR/IntrinsicsAArch64.td
  llvm/lib/Target/AArch64/SVEInstrFormats.td
  llvm/test/CodeGen/AArch64/sve2p1-intrinsics-while-pn.ll

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