[Bug tree-optimization/59445] [4.9 Regression] ICE in add_old_iv_candidates, at tree-ssa-loop-ivopts.c:2541

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59445

--- Comment #11 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Started with r205848.

Well, the assert at line 2541 has been introduced in the revision:

+    gcc_assert (gimple_bb (phi) == data->current_loop->header);

and it was in the original patch et
http://gcc.gnu.org/ml/gcc-patches/2013-12/msg00630.html, but without
explanation for it.