[Bug tree-optimization/53395] [4.8 Regression] The LAPACK functions i(d|s)amax are more than two times slower after revision 187183

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53395

--- Comment #10 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-09-03 
20:31:55 UTC ---
Author: pinskia
Date: Mon Sep  3 20:31:52 2012
New Revision: 190904

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190904
Log:
2012-09-03  Andrew Pinski  <apin...@cavium.com>

    PR tree-opt/53395
    * tree-if-conv.c (constant_or_ssa_name): New function.
    (fold_build_cond_expr): New function.
    (predicate_scalar_phi): Use fold_build_cond_expr instead of build3.
    (predicate_mem_writes): Likewise.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-if-conv.c