2011-06-27  Kai Tietz  <ktietz@redhat.com>

        * tree-ssa-math-opts.c (do_shift_rotate): Zero bits
        out of type precision after operation.
        (find_bswap): Take for limit value the integer auto-
        promotion into account.

ChangeLog

2011-06-27  Kai Tietz  <ktietz@redhat.com>

        * gcc.dg/optimize-bswapdi-2.c: New test.

From-SVN: r175528