[PATCH] D96268: [-Wcompletion-handler] Support checks with builtins

[Valeriy Savchenko via Phabricator via cfe-commits]

vsavchenko created this revision.
vsavchenko added a reviewer: NoQ.
Herald added a subscriber: Charusso.
vsavchenko requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.

It is very common to check callbacks and completion handlers for null.
This patch supports such checks using built-in functions:

- __builtin_expect
- __builtin_expect_with_probablity
- __builtin_unpredictable

rdar://73455388


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D96268

Files:
  clang/lib/Analysis/CalledOnceCheck.cpp
  clang/test/SemaObjC/warn-called-once.m

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D96268.322111.patch
Type: text/x-patch
Size: 3615 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20210208/5b1967d2/attachment.bin>