[PATCH] D111617: [RISCV] Lazily add RVV C intrinsics.

[Hsiangkai Wang via Phabricator via cfe-commits]

HsiangKai created this revision.
HsiangKai added reviewers: khchen, craig.topper, rogfer01, kito-cheng.
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Leverage the method OpenCL uses that adds C intrinsics when the lookup
failed. There is no need to define C intrinsics in the header file any
more. It could help to avoid the large header file to speed up the
compilation of RVV source code. Besides that, only the C intrinsics used
by the users will be added into the declaration table.

This patch is based on https://reviews.llvm.org/D103228 and inspired by
OpenCL implementation.

Authored-by: Kito Cheng <kito.cheng at sifive.com>
Co-Authored-by: Hsiangkai Wang <kai.wang at sifive.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D111617

Files:
  clang/include/clang/Basic/CMakeLists.txt
  clang/include/clang/Basic/TokenKinds.def
  clang/include/clang/Parse/Parser.h
  clang/lib/Parse/ParsePragma.cpp
  clang/lib/Sema/SemaLookup.cpp
  clang/utils/TableGen/RISCVVEmitter.cpp
  clang/utils/TableGen/TableGen.cpp
  clang/utils/TableGen/TableGenBackends.h
  llvm/docs/CommandGuide/tblgen.rst

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