[PATCH] D127170: [WebAssembly] Implement remaining relaxed SIMD instructions

[Thomas Lively via Phabricator via cfe-commits]

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Add codegen, intrinsics, and builtins for the i16x8.relaxed_q15mulr_s,
i16x8.dot_i8x16_i7x16_s, and i32x4.dot_i8x16_i7x16_add_s instructions. These are
the last instructions from the relaxed SIMD proposal[1] that had not been
implemented.

[1]:
https://github.com/WebAssembly/relaxed-simd/blob/main/proposals/relaxed-simd/Overview.md.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D127170

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/WebAssemblyInstrSIMD.td
  llvm/test/CodeGen/WebAssembly/simd-intrinsics.ll
  llvm/test/MC/WebAssembly/simd-encodings.s

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