[PATCH] D109451: Summary:Introduce a new frontend flag `-fswift-async-fp={auto|always|never}` thatcontrols how code generation sets the Swift extended async frameinfo bit. There are three possibilities:

[Arnold Schwaighofer via Phabricator via cfe-commits]

aschwaighofer created this revision.
aschwaighofer added reviewers: doug.gregor, t.p.northover.
Herald added subscribers: ormris, dexonsmith, dang.
aschwaighofer requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

- `auto`: the default, which determines how to set the bit based on

deployment target, either statically or dynamically via
`swift_async_extendedFramePointerFlags`.

- `always`: always set the bit statically, regardless of deployment

target.

- `never`: never set the bit, regardless of deployment target.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109451

Files:
  clang/include/clang/Basic/CodeGenOptions.def
  clang/include/clang/Basic/CodeGenOptions.h
  clang/include/clang/Driver/Options.td
  clang/lib/CodeGen/BackendUtil.cpp
  clang/lib/Driver/ToolChains/Clang.cpp
  clang/test/CodeGen/swift-async-extended-fp.c

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