a773db7d76
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`: which determines how to set the bit based on deployment target, either
statically or dynamically via `swift_async_extendedFramePointerFlags`.
* `always`: the default, always set the bit statically, regardless of deployment
target.
* `never`: never set the bit, regardless of deployment target.
Patch by Doug Gregor <dgregor@apple.com>
Reviewed By: doug.gregor
Differential Revision: https://reviews.llvm.org/D109392
23 lines
1.2 KiB
LLVM
23 lines
1.2 KiB
LLVM
; RUN: llc -mtriple x86_64-apple-macosx12.0.0 %s -o - | FileCheck %s --check-prefix=CHECK-STATIC
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; RUN: llc -mtriple x86_64-apple-macosx12.0.0 -swift-async-fp=always %s -o - | FileCheck %s --check-prefix=CHECK-STATIC
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; RUN: llc -mtriple x86_64-apple-macosx12.0.0 -swift-async-fp=auto %s -o - | FileCheck %s --check-prefix=CHECK-STATIC
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; RUN: llc -mtriple x86_64-apple-macosx11.9.0 -swift-async-fp=always %s -o - | FileCheck %s --check-prefix=CHECK-STATIC
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; RUN: llc -mtriple x86_64-apple-macosx11.9.0 %s -o - | FileCheck %s --check-prefix=CHECK-STATIC
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; RUN: llc -mtriple x86_64-apple-macosx11.9.0 -swift-async-fp=auto %s -o - | FileCheck %s --check-prefix=CHECK-DYNAMIC
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; RUN: llc -mtriple x86_64-apple-macosx11.9.0 -swift-async-fp=always %s -o - | FileCheck %s --check-prefix=CHECK-STATIC
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; RUN: llc -mtriple x86_64-apple-macosx11.9.0 -swift-async-fp=never %s -o - | FileCheck %s --check-prefix=CHECK-NEVER
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; CHECK-STATIC-LABEL: foo:
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; CHECK-STATIC: btsq $60, %rbp
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; CHECK-DYNAMIC-LABEL: foo:
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; CHECK-DYNAMIC: orq _swift_async_extendedFramePointerFlags@GOTPCREL(%rip), %rbp
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; CHECK-NEVER-LABEL: foo:
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; CHECK-NEVER-NOT: btsq $60, %rbp
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; CHECK-NEVER-NOT: _swift_async_extendedFramePointerFlags
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define void @foo(i8* swiftasync) "frame-pointer"="all" {
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ret void
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}
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