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This reverts commit b3ac66a.

This is problematic when [thunk] functions get inlined into and the
function from which we inline expects a framepointer.

Specifically, _swift_os_log_return_address() reads the framepointer.

rdar://55852225

This reverts commit b3ac66a.

This is problematic when [thunk] functions get inlined into and the
function from which we inline expects a framepointer.

Specifically, _swift_os_log_return_address() reads the framepointer.

rdar://55852225
@aschwaighofer aschwaighofer requested a review from jckarter October 2, 2019 13:57
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@swift-ci Please test

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jckarter commented Oct 2, 2019

LGTM. I wonder, would it make sense to drop the [thunk] attribute when the inliner inlines into a thunk?

@aschwaighofer aschwaighofer merged commit 2b790a9 into swiftlang:master Oct 2, 2019
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When resurrecting this patch we would also have to make sure that llvm does not inline into the thunk.

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2 participants