[PATCH] D121151: [WebAssembly] Add new target feature in support of 'extended-const' proposal

[Sam Clegg via Phabricator via cfe-commits]

sbc100 created this revision.
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We don't yet do anything when this feature is enabled, this change
just lays the ground work by accepting that there is such a feature.

See https://github.com/WebAssembly/extended-const


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121151

Files:
  clang/docs/ClangCommandLineReference.rst
  clang/include/clang/Driver/Options.td
  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

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