[Bug tree-optimization/59100] requesting optimization of safe rotate function

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59100

--- Comment #5 from Marc Glisse <glisse at gcc dot gnu.org> ---
Author: glisse
Date: Thu May  8 13:17:01 2014
New Revision: 210212

URL: http://gcc.gnu.org/viewcvs?rev=210212&root=gcc&view=rev
Log:
2014-05-08  Marc Glisse  <marc.glisse@inria.fr>

    PR tree-optimization/59100
gcc/
    * tree-ssa-phiopt.c: Include tree-inline.h.
    (neutral_element_p, absorbing_element_p): New functions.
    (value_replacement): Handle conditional binary operations with a
    neutral or absorbing element.
gcc/testsuite/
    * gcc.dg/tree-ssa/phi-opt-12.c: New file.
    * gcc.dg/tree-ssa/phi-opt-13.c: Likewise.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-12.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/phi-opt-13.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-phiopt.c