[Bug tree-optimization/56695] [4.9 Regression] ICE in expand_vec_cond_expr, at optabs.c:6751

[mpolacek at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56695



--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> 2013-03-26 
15:20:34 UTC ---

vectorizable_condition gets this stmt:

patt_10 = i.1_17 == 0 ? 1 : 0;



We can't do just

  if (TYPE_UNSIGNED (TREE_TYPE (vectype)))

    return false;

which quashes the ICE because that prevents also vectorizing a lot of other

things ...