Re:Compilers are hard
by cperciva on Thursday January 21, 2021 @12:46AM
(#25855900)
The bug shows up without asan. We literally tripped over it in production with code compiled with "clang -O2".
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Re:Compilers are hard
by drivebycomment on Thursday January 21, 2021 @12:53AM
(#25855939)
Then I agree that this is surprising. That means clang/llvm is not modeling set/longjmp correctly in general and that is not acceptable as a C compiler.
That's apparent from your ticket (which is marked as a duplicate) but on the one you linked to, all the offending compiler lines contain asan. Is there a chance this is impacting prioritization?