[PATCH] D108003: [Clang] Extend -Wbool-operation to warn about bitwise and of bools with side effects

Thu Aug 19 09:40:27 PDT 2021

aeubanks added a comment.

In D108003#2944178 <https://reviews.llvm.org/D108003#2944178>, @aeubanks wrote:

> I ran this over Chrome and ran into a use case that looks legitimate. It seems like the pattern in LLVM where we want to run a bunch of transformations and get if any of them changed anything.
>
> https://source.chromium.org/chromium/chromium/src/+/main:third_party/webrtc/api/audio/echo_canceller3_config.cc;drc=cbdbb8c1666fd08a094422905e73391706a05b03;l=111

The remaining places where this fired looked like places where `&&` would be better than `&`, except for one where the code was treating bools as one bit integers and doing various bitwise operations on them
https://source.chromium.org/chromium/chromium/src/+/main:third_party/distributed_point_functions/src/dpf/distributed_point_function.cc;drc=87b84b3834343e141ec94e3321f4d1c7be8a7a9d;l=230

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https://reviews.llvm.org/D108003