[Bug tree-optimization/28364] poor optimization choices when iterating over a std::string (probably not c++-specific)

[rakdver at gcc dot gnu dot org]

------- Comment #28 from rakdver at gcc dot gnu dot org  2006-08-16 21:14 
-------
Subject: Bug 28364

Author: rakdver
Date: Wed Aug 16 21:14:11 2006
New Revision: 116189

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=116189
Log:
        PR tree-optimization/28364
        * tree-ssa-loop-ivopts.c (aff_combination_to_tree): Handle zero
        correctly.
        (fold_affine_expr): New function.
        (may_eliminate_iv): Use fold_affine_expr.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-loop-ivopts.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28364