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| author | Akira Hatanaka <ahatanaka@apple.com> | 2021-06-28 11:02:30 -0700 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@apple.com> | 2021-06-28 11:02:30 -0700 |
| commit | f85b9d644398767f6b5cb046f952ed7dbd7dfc7a (patch) | |
| tree | bcce6eb91eeeb0338c13d12ebc788ea056bc2b4d /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 2a60ab76a796637d49bf1c7191f5b5a0c92f81bc (diff) | |
| download | llvm-f85b9d644398767f6b5cb046f952ed7dbd7dfc7a.zip llvm-f85b9d644398767f6b5cb046f952ed7dbd7dfc7a.tar.gz llvm-f85b9d644398767f6b5cb046f952ed7dbd7dfc7a.tar.bz2 | |
[ObjC][ARC] Ignore operand bundle "clang.arc.attachedcall" on a call if
the call's return type is void
Instead of trying hard to prevent global optimization passes such as
deadargelim from changing the return type to void, just ignore the
bundle if the return type is void. clang currently emits calls to
@llvm.objc.clang.arc.noop.use, which consumes the function call result,
immediately after the function call to prevent changes to the return
type, but optimization passes can delete the call to
@llvm.objc.clang.arc.noop.use if the function call doesn't return, which
enables deadargelim to change the return type.
rdar://76671438
Differential Revision: https://reviews.llvm.org/D103062
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions