[Bug tree-optimization/59519] [4.9 Regression] ICE on valid code at -O3 on x86_64-linux-gnu in slpeel_update_phi_nodes_for_guard1, at tree-vect-loop-manip.c:486

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59519

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31562
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31562&action=edit
gcc49-pr59519.patch

I wonder if this isn't just a checking issue, the two PHI nodes created in
*new_exit_bb have the same argument, so I think it is just fine if the two PHI
results are used interchangeably, later optimization passes should hopefully
coalesce them into a single IV.