[all-commits] [llvm/llvm-project] 497026: [WebAssembly] Prototype prefetch instructions

[Thomas Lively via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 497026c90233e82ffd3ce2438c5f9567be6dabe7
      https://github.com/llvm/llvm-project/commit/497026c90233e82ffd3ce2438c5f9567be6dabe7
  Author: Thomas Lively <tlively at google.com>
  Date:   2021-01-05 (Tue, 05 Jan 2021)

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

  Log Message:
  -----------
  [WebAssembly] Prototype prefetch instructions

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.

Differential Revision: https://reviews.llvm.org/D93883