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[WebAssembly] Update the README.txt.

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Update the README.txt with newer information, add a link to the Emscripten
page explaining the current easiest way to use the LLVM wasm backend, and
mention that other ways of using the LLVM wasm backend are in development.

llvm-svn: 285215
This commit is contained in:
Dan Gohman 2016-10-26 17:44:09 +00:00
parent 50b936e8f6
commit bc67d8a523
1 changed files with 17 additions and 9 deletions
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lib/Target/WebAssembly/README.txt
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//===-- README.txt - Notes for WebAssembly code gen -----------------------===//
This WebAssembly backend is presently in a very early stage of development.
The code should build and not break anything else, but don't expect a lot more
at this point.
This WebAssembly backend is presently under development.
For more information on WebAssembly itself, see the design documents:
* https://github.com/WebAssembly/design/blob/master/README.md
Currently the easiest way to use it is through Emscripten, which provides a
compilation environment that includes standard libraries, tools, and packaging
for producing WebAssembly applications that can run in browsers and other
environments. For more information, see the Emscripten documentation in
general, and this page in particular:
* https://github.com/kripken/emscripten/wiki/New-WebAssembly-Backend
The following documents contain some information on the planned semantics and
binary encoding of WebAssembly itself:
Other ways of using this backend, such as via a standalone "clang", are also
under development, though they are not generally usable yet.
For more information on WebAssembly itself, see the home page:
* https://webassembly.github.io/
The following documents contain some information on the semantics and binary
encoding of WebAssembly itself:
* https://github.com/WebAssembly/design/blob/master/Semantics.md
* https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md
The backend is built, tested and archived on the following waterfall:
https://wasm-stat.us
The backend's bringup is done using the GCC torture test suite first since it
doesn't require C library support. Current known failures are in
The backend's bringup is done in part by using the GCC torture test suite, since
it doesn't require C library support. Current known failures are in
known_gcc_test_failures.txt, all other tests should pass. The waterfall will
turn red if not. Once most of these pass, further testing will use LLVM's own
test suite. The tests can be run locally using: