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[Bug tree-optimization/46675] [4.6 Regression] profiledbootstrap failed


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46675

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code
                 CC|                            |rakdver at gcc dot gnu.org

--- Comment #10 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-27 20:19:40 UTC ---
With the testcase we again see

Analyzing # of iterations of loop 1
  exit condition [1, + , 1](no_overflow) < n_3(D) - -2147483648
  bounds on difference of bases: 0 ... -2
  result:
    # of iterations (unsigned int) n_3(D) + 2147483647, bounded by 0
Statement (exit)if (i_7 < npairs_4)
 is executed at most (unsigned int) n_3(D) + 2147483647 (bounded by 0) + 1
times in loop 1.

where the bound is bogus - it should be bounded by 2147483647.


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