[Bug tree-optimization/58209] [4.7/4.8/4.9 Regression] ICE in extract_range_from_binary_expr, at tree-vrp.c:2294

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58209

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 30684
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30684&action=edit
gcc49-pr58209.patch

Untested fix for this tail recursion bug.

For the release branches, I think better might be just to apply only the
testcase and find_tail_calls hunk with (m || a) instead of m in the added
condition.