[PATCH] D109392: Add a command-line flag to control the Swift extended async frame info.

[Arnold Schwaighofer via Phabricator via llvm-commits]

aschwaighofer created this revision.
aschwaighofer added reviewers: doug.gregor, t.p.northover.
Herald added subscribers: pengfei, hiraditya.
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Introduce a new command-line flag `-swift-async-fp={auto|always|never}`
that controls how code generation sets the Swift extended async frame
info bit. There are three possibilities:

- `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.

Patch by Doug Gregor <dgregor at apple.com>


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D109392

Files:
  llvm/include/llvm/CodeGen/CommandFlags.h
  llvm/include/llvm/Target/TargetOptions.h
  llvm/lib/CodeGen/CommandFlags.cpp
  llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
  llvm/lib/Target/X86/X86FrameLowering.cpp
  llvm/test/CodeGen/AArch64/swift-dynamic-async-frame.ll
  llvm/test/CodeGen/X86/swift-dynamic-async-frame.ll

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