[PATCH] D125875: [RISCV] Add vread_csr and vwrite_csr to riscv_vector.h

[Wang Pengcheng via Phabricator via cfe-commits]

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These two functions are described in RVV intrinsics doc
to read/write RVV CSRs. This matches what GCC does.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125875

Files:
  clang/include/clang/Basic/riscv_vector.td
  clang/test/CodeGen/RISCV/rvv-vread-csr.c
  clang/test/CodeGen/RISCV/rvv-vwrite-csr.c

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