[PATCH] D57476: [CodeGenObjC] Use an invoke instead of a call when calling `objc_alloc` or `objc_allocWithZone`

[Erik Pilkington via Phabricator via cfe-commits]

erik.pilkington created this revision.
erik.pilkington added reviewers: rjmccall, pete, ahatanak.
Herald added subscribers: dexonsmith, jkorous.

`objc_alloc` and `objc_allocWithZone` may throw exceptions if the underlying method does. If we're in a `@try` block, then make sure we emit an `invoke` instead of a `call`.

Fixes rdar://47610407

Thanks for taking a look!
Erik


Repository:
  rC Clang

https://reviews.llvm.org/D57476

Files:
  clang/lib/CodeGen/CGObjC.cpp
  clang/test/CodeGenObjC/convert-messages-to-runtime-calls.m

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