re PR tree-optimization/80237 (float to double conversion is not optimized away)
2017-04-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/80237
* tree-ssa-pre.c (find_leader_in_sets): Add third set argument,
defaulted to NULL.
(phi_translate_1): Also allow a leader in AVAIL_OUT of pred
for a simplified result.