FailedChanges

Summary

  1. [WebAssembly] Add -fwasm-exceptions for wasm EH (details)
Commit e8b2b8868d2192fefe2ddf6445e465e283c3ba2d by aheejin
[WebAssembly] Add -fwasm-exceptions for wasm EH
Summary: This adds `-fwasm-exceptions` (in similar fashion with
`-fdwarf-exceptions` or `-fsjlj-exceptions`) that turns on everything
with wasm exception handling from the frontend to the backend.
We currently have `-mexception-handling` in clang frontend, but this is
only about the architecture capability and does not turn on other
necessary options such as the exception model in the backend. (This can
be turned on with `llc -exception-model=wasm`, but llc is not invoked
separately as a command line tool, so this option has to be transferred
from clang.)
Turning on `-fwasm-exceptions` in clang also turns on
`-mexception-handling` if not specified, and will error out if
`-mno-exception-handling` is specified.
Reviewers: dschuff, tlively, sbc100
Subscribers: aprantl, jgravelle-google, sunfish, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67208
llvm-svn: 371708
The file was modifiedclang/test/CodeGenCXX/wasm-eh.cpp
The file was modifiedclang/lib/CodeGen/CGException.cpp
The file was modifiedclang/lib/Frontend/CompilerInvocation.cpp
The file was modifiedclang/lib/CodeGen/BackendUtil.cpp
The file was modifiedclang/include/clang/Driver/Options.td
The file was modifiedclang/lib/Driver/ToolChains/WebAssembly.cpp
The file was modifiedclang/test/Driver/wasm-toolchain.c
The file was modifiedclang/include/clang/Basic/LangOptions.def
The file was modifiedclang/lib/Driver/ToolChains/Clang.cpp