[llvm] [VPlan] First step towards VPlan cost modeling. (PR #92555)

[Florian Hahn via llvm-commits]

fhahn wrote:





> > @hvdijk any chance you could share the IR that is causing the crash? (or point me to instructions how to build and reproduce this end-to-end with a custom clang if providing the IR isn't possible)
> 
> I gave the full `bug.ll` file in my comment along with the `opt` invocation to reproduce the crash. This was from a downstream project using LLVM as a library, so it did not involve the normal Clang pipeline, but you should still be able to reproduce it like that?

Whoops sorry, meant to tag someone else!

> > Hitting the same assert issue with Tensorflow and XLA, example failing test: https://github.com/tensorflow/tensorflow/blob/master/tensorflow/compiler/tests/random_ops_test.py
> 
 @dklimkin  any chance you could share the IR that is causing the crash? (or point me to instructions how to build and reproduce this end-to-end with a custom clang if providing the IR isn't possible)

https://github.com/llvm/llvm-project/pull/92555