rjmccall added a comment.

In https://reviews.llvm.org/D41050#953917, @danzimm wrote:

> Change tests to use non-O2 generated IR. It looks like the combined 
> objc_retainAutoreleasedReturnValue/objc_autoreleaseReturnValue calls 
> annihilate each other and we just get a call/ret.


Is that really happening at -O0?  Maybe you need to add -disable-llvm-optzns to 
the test line if so.


Repository:
  rC Clang

https://reviews.llvm.org/D41050



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