[Bug tree-optimization/47139] [4.6 Regression] ice in process_use, at tree-vect-stmts.c:290

[irar at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47139

--- Comment #4 from irar at gcc dot gnu.org 2011-01-06 07:34:28 UTC ---
Author: irar
Date: Thu Jan  6 07:34:24 2011
New Revision: 168535

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=168535
Log:

        PR tree-optimization/47139
        * tree-vect-loop.c (vect_is_simple_reduction_1): Check that 
        only the last reduction value is used outside the loop. Update
        documentation.


Added:
    trunk/gcc/testsuite/gcc.dg/vect/pr47139.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vect-loop.c