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authorbors <bors@rust-lang.org>2022-02-13 00:14:52 +0000
committerbors <bors@rust-lang.org>2022-02-13 00:14:52 +0000
commit5c30d6568383916ce97cdf20ceb61a8b9e5bb5a8 (patch)
treef46d936ef6bc64bd6f032bca84e9711a0e572d7b /compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp
parent3cfa4def7c87d571bd46d92fed608edf8fad236e (diff)
parent401307759aaf6f1e49c8a2c840a76ae41ec1f865 (diff)
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Auto merge of #93670 - erikdesjardins:noundef, r=nikic
Apply noundef attribute to &T, &mut T, Box<T>, bool

This doesn't handle `char` because it's a bit awkward to distinguish it from `u32` at this point in codegen.

Note that this _does not_ change whether or not it is UB for `&`, `&mut`, or `Box` to point to undef. It only applies to the pointer itself, not the pointed-to memory.

Fixes (partially) #74378.

r? `@nikic` cc `@RalfJung`
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