[Bug tree-optimization/65658] Jump threading too pessimistic when optimizing for size

[law at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65658

--- Comment #2 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Mon Apr 20 17:13:52 2015
New Revision: 222242

URL: https://gcc.gnu.org/viewcvs?rev=222242&root=gcc&view=rev
Log:
    PR tree-optimization/65658
    * tree-ssa-threadupdate.c (redirection_block_p): Ignore clobber
    statements too.

    PR tree-optimization/65658
    * gcc.dg/pr65658.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/pr65658.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-threadupdate.c