[PATCH] D126742: [RISCV][Clang] Support RVV policy functions.

[Zakk Chen via Phabricator via cfe-commits]

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1. Add policy function support and tests for vadd, vmv, vfmv and all load

instructions except segment load. I didn't add all combination of policy
functions because it seem not to make sense.

2. Rename HasUnMaskedOverloaded to SupportOverloading.
3. vmv.s.x for ta policy could not have overloaded api.
4. This patch does not support all operations, I will have other follow-up

patches support all.

[RFC] https://github.com/riscv-non-isa/rvv-intrinsic-doc/pull/137


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D126742

Files:
  clang/include/clang/Basic/riscv_vector.td
  clang/include/clang/Support/RISCVVIntrinsicUtils.h
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/lib/Sema/SemaRVVLookup.cpp
  clang/lib/Support/RISCVVIntrinsicUtils.cpp
  clang/test/CodeGen/RISCV/riscv-attr-builtin-alias.c
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vadd.c
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vfmv.c
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vle.c
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vloxei.c
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vlse.c
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vluxei.c
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vmv.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vadd.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vfmv.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vle.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vleff.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vloxei.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vlse.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vluxei.c
  clang/test/CodeGen/RISCV/rvv-intrinsics/vmv.c
  clang/utils/TableGen/RISCVVEmitter.cpp

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