tree 8a14756263c68e3f41c6c355cd342697c380aa48
parent e4b6cc314a459b803ea6b3dc8b63da38d1dd50db
author Marina Taylor <marina_taylor@apple.com> 1747148689 +0100
committer GitHub <noreply@github.com> 1747148689 +0100
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[ObjC] Support objc_claimAutoreleasedReturnValue (#139720)

This adds basic support for objc_claimAutoreleasedReturnValue, which is
mostly equivalent to objc_retainAutoreleasedReturnValue, with the
difference that it doesn't require the marker nop to be emitted between
it and the call it was attached to.

To achieve that, this also teaches the AArch64 attachedcall bundle
lowering to pick whether the marker should be emitted or not based on
whether the attachedcall target is claimARV or retainARV.

Co-authored-by: Ahmed Bougacha <ahmed@bougacha.org>