[PATCH] D73320: [WebAssembly] Add reference types target feature

[Heejin Ahn via Phabricator via llvm-commits]

aheejin created this revision.
aheejin added a reviewer: tlively.
Herald added subscribers: llvm-commits, cfe-commits, sunfish, hiraditya, jgravelle-google, sbc100, dschuff.
Herald added projects: clang, LLVM.

This adds the reference types target feature. This does not enable any
more functionality in LLVM/clang for now, but this is necessary to embed
the info in the target features section, which is used by Binaryen and
Emscripten. It turned out that after D69832 <https://reviews.llvm.org/D69832> `-fwasm-exceptions` crashed
because we didn't have the reference types target feature.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D73320

Files:
  clang/lib/Basic/Targets/WebAssembly.cpp
  clang/lib/Basic/Targets/WebAssembly.h
  clang/test/Preprocessor/wasm-target-features.c
  llvm/lib/Target/WebAssembly/WebAssembly.td
  llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.td
  llvm/lib/Target/WebAssembly/WebAssemblySubtarget.h
  llvm/test/CodeGen/WebAssembly/reference-types.ll

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