[Bug tree-optimization/63605] [4.8/4.9/5 Regression] wrong code at -O3 on x86_64-linux-gnu

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63605

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Fri Nov  7 20:57:01 2014
New Revision: 217238

URL: https://gcc.gnu.org/viewcvs?rev=217238&root=gcc&view=rev
Log:
2014-11-07  Richard Biener  <rguent...@suse.de>

    PR tree-optimization/63605
    * fold-const.c (fold_binary_loc): Properly use element_precision
    for types that may not be scalar.

    * gcc.dg/vect/pr63605.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr63605.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog