[Bug tree-optimization/53265] Warn when undefined behavior implies smaller iteration count

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53265

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #29657|0                           |1
        is obsolete|                            |

--- Comment #23 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-03-13 10:36:14 UTC ---
Created attachment 29661
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29661
gcc48-pr53265.patch

Updated patch as per IRC discussions.  Still need to look at longbranch2.C and
do_1.f90, then test it.