[Bug tree-optimization/68714] [6 Regression] less folding of vector comparison

[rth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68714

--- Comment #8 from Richard Henderson <rth at gcc dot gnu.org> ---
Author: rth
Date: Mon Mar 14 20:48:15 2016
New Revision: 234196

URL: https://gcc.gnu.org/viewcvs?rev=234196&root=gcc&view=rev
Log:
PR tree-opt/68714

  * tree-ssa-reassoc.c (ovce_extract_ops, optimize_vec_cond_expr): New.
  (can_reassociate_p): Allow ANY_INTEGRAL_TYPE_P.
  (reassociate_bb): Use optimize_vec_cond_expr; avoid
  optimize_range_tests, attempt_builtin_copysign and attempt_builtin_powi
  on vectors.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr68714.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-reassoc.c