[PATCH] D57155: [WebAssembly] Add a __wasi__ target macro

[Dan Gohman via Phabricator via cfe-commits]

sunfish created this revision.
sunfish added reviewers: sbc100, dschuff, aheejin.
Herald added subscribers: llvm-commits, jgravelle-google.
sunfish edited the summary of this revision.

This adds a `__wasi__` macro for the wasi OS, similar to `__linux__` etc. for other OS's.


Repository:
  rL LLVM

https://reviews.llvm.org/D57155

Files:
  lib/Basic/Targets.cpp
  lib/Basic/Targets/OSTargets.h
  test/Preprocessor/init.c

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