[PATCH] D81631: Fix undefined behavior in Dwarf.

[zuojian lin via Phabricator via llvm-commits]

linzj added a comment.

In D81631#2093513 <https://reviews.llvm.org/D81631#2093513>, @dblaikie wrote:

> Is this UB codepath reached by existing test cases running in check-llvm? Or was it found on some other testing?


No. I ran my compiler which is based on LLVM with valgrind. Then this warning was popping everywhere.


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  https://reviews.llvm.org/D81631/new/

https://reviews.llvm.org/D81631