[lno] compute_immediate_uses in vectorizer causes ICE in pass_redundant_phi

[Zdenek Dvorak]

Hello,

> I added a call to compute_immediate_uses() in the vectorizer, and I get
> ICE's all over SPEC during the subsequent redundant-phi-removal pass (even
> if I immediately return after the call to compute_immediate_uses(), doing
> no vectorization). If I disable the redundant-phi-removal pass after
> vectorization, I can compile SPEC successfully. Are there any restrictions
> on calling compute_immediate_uses(), or any cleanups that need to be done
> after it?

you must call free_df () afterwards.

Zdenek