Fix the IR attributes of swift_getObjectType. #13382
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It's not readnone, because it reads the metatype from an object. Readnone would let the llvm ARC optimizer reschedule the call with a release-call for the object. fixes SR-6560.
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@swift-ci smoke test and merge |
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Hmm, that's fair. LGTM. |
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rdar://problem/35998785 |
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It's not readnone, because it reads the metatype from an object.
Readnone would let the llvm ARC optimizer reschedule the call with a release-call for the object.
fixes SR-6560.