I tracked this down to a single commit that if reverted stops the test case from segfaulting: 2d5820c. This is a patch that improves CorrelatedValuePropagation to also handle And instructions.
I am currently working on finding the exact bug - I am not yet sure if the bug is actually in that pass or if this change merely exposes something else. One thing I tried was to insert a clearing of the LazyValueInfo cache before each call to it. This changed the results somewhat, but llvm-lto still crashes. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1867173 Title: FTBFS with llvm-10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/llvm-toolchain-10/+bug/1867173/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs