[PATCH] D46568: [SimplifyCFG] Fix a crash when folding PHIs

[Davide Italiano via Phabricator via llvm-commits]

davide added a comment.

In https://reviews.llvm.org/D46568#1090802, @aprantl wrote:

> That testcase is huge. Do all instructions need !dbg locations?


I can probably limit the number of `!dbg` location attached to the instructions, and that could shrink the test a bit [but still crashing], if you're fine with it.
I was mainly worried about feeding something which is different from what the frontend/previous passes provide.


https://reviews.llvm.org/D46568