The @musllibc UB-purge continues. https://git.musl-libc.org/cgit/musl/commit/?id=4d0a82170a25464c39522d7190b9fe302045ddb2 … and previous few commits.
Yes, and for ASan and Valgrind it's breaking even if you use asm to do it, despite it being clearly well-defined for the asm code where the memory/address model is just the ISA's model.
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Aside from the ASan and Valgrind spam though I'm not really bothered by this. The intent is likely that this work (it should probably be documented as a property of the may_alias attribute though) and it's not going to break.
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Yeah, at least on the clang side, lots of things in iOS and macOS would break if this changed, so it’s “safe”.
End of conversation
New conversation -
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It’s really quite annoying. We jump through weird hoops to write test code because of this.
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