[PATCH] D89959: UBSAN: emit distinctive traps in trapping mode

[Vedant Kumar via Phabricator via cfe-commits]

vsk added a comment.

I might've missed it, but the debug location merging behavior could use a test. Here's one way to write it: https://godbolt.org/z/Yb9PY9.

In `@_Z13keep_locationPi`, the !dbg attachment on the trap should match `!DILocation(line: 1`. In `@_Z15merge_locationsPi`, the attachment should match `!DILocation(line: 0` (it currently incorrectly points to line 4).


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  https://reviews.llvm.org/D89959/new/

https://reviews.llvm.org/D89959