[PATCH] D116822: [Clang][Sema] Use VersionMap from SDKSettings for remapping tvOS and watchOS availability

[Egor Zhdan via Phabricator via cfe-commits]

egorzhdan created this revision.
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This makes the mapping between iOS & tvOS/watchOS versions more accurate. For example, iOS 9.3 now gets correctly mapped into tvOS 9.2 and not tvOS 9.3.

Before this change, the incorrect mapping could cause excessive or missing warnings for code that specifies availability for iOS, but not for tvOS/watchOS.

rdar://81491680


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D116822

Files:
  clang/include/clang/Basic/DarwinSDKInfo.h
  clang/include/clang/Sema/Sema.h
  clang/lib/Sema/Sema.cpp
  clang/lib/Sema/SemaDeclAttr.cpp
  clang/test/Sema/Inputs/AppleTVOS15.0.sdk/SDKSettings.json
  clang/test/Sema/Inputs/WatchOS7.0.sdk/SDKSettings.json
  clang/test/Sema/attr-availability-tvos.c
  clang/test/Sema/attr-availability-watchos-infer-from-ios.c
  clang/test/Sema/attr-availability-watchos.c

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