[PATCH] D56504: [WebAssembly] Add unimplemented-simd128 feature, gate builtins

[Thomas Lively via Phabricator via cfe-commits]

tlively created this revision.
tlively added reviewers: aheejin, dschuff.
Herald added subscribers: cfe-commits, kristina, sunfish, jgravelle-google, sbc100.

Depends on D56501 <https://reviews.llvm.org/D56501>. Also adds a macro define
__wasm_unimplemented_simd128__ for feature detection of unimplemented
SIMD builtins.


Repository:
  rC Clang

https://reviews.llvm.org/D56504

Files:
  include/clang/Basic/BuiltinsWebAssembly.def
  include/clang/Driver/Options.td
  lib/Basic/Targets/WebAssembly.cpp
  lib/Basic/Targets/WebAssembly.h
  test/CodeGen/builtins-wasm.c

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