[DFAJumpThreading] crash since b167ada

[JonPsson1]

Seeing many assertions that go away if I revert b167ada "[DFAJumpThreading] Rewrite the way paths are enumerated (#96127)".

clang-20 -cc1 -triple s390x-unknown-linux-gnu -target-cpu z15 -O3 -w -mllvm -enable-dfa-jump-thread -o /dev/null -emit-llvm -x ir  tc_dfa-jt_invalidbbarg.ll
...
10 0x000002aa0a73e544 (anonymous namespace)::DFAJumpThreading::run
...

clang-20 -cc1 -triple s390x-unknown-linux-gnu   -target-cpu z16 -O3 -w -mllvm -enable-dfa-jump-thread -o /dev/null -emit-llvm -x ir  tc_select_mustbedeadnow.ll
...
#10 0x000002aa1b0c0968 llvm::DFAJumpThreadingPass::run
...

tcs_dfa-jt.tar.gz

[mikaelholmen]

Perhaps the same assertion I reported here:
#96127 (comment)
?

[JonPsson1]

Perhaps the same assertion I reported here: #96127 (comment) ?

Yes, same assertion, and in addition my second test case above triggered another assertion.