[PATCH] D93883: [WebAssembly] Prototype prefetch instructions

[Thomas Lively via Phabricator via cfe-commits]

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As proposed in https://github.com/WebAssembly/simd/pull/352 and using the
opcodes used in the V8 prototype:
https://chromium-review.googlesource.com/c/v8/v8/+/2543167. These instructions
are only usable via intrinsics and clang builtins to make them opt-in while they
are being benchmarked.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D93883

Files:
  clang/include/clang/Basic/BuiltinsWebAssembly.def
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/test/CodeGen/builtins-wasm.c
  llvm/include/llvm/IR/IntrinsicsWebAssembly.td
  llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
  llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCTargetDesc.h
  llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
  llvm/lib/Target/WebAssembly/WebAssemblyInstrSIMD.td
  llvm/test/CodeGen/WebAssembly/simd-prefetch-offset.ll
  llvm/test/MC/WebAssembly/simd-encodings.s

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