https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83158
Marc Glisse <glisse at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2017-11-25 Ever confirmed|0 |1 --- Comment #1 from Marc Glisse <glisse at gcc dot gnu.org> --- It is related to PR 83073 but not quite a dup, it looks like another case where we have more information than we can store in a range, and choose a subset that hurts in this testcase. The opposite choice would hurt a different testcase, the issue is finding a reasonable heuristic (say give priority to excluding 0 from the range for instance). The (longer term) plans to have 2+-component ranges would also help.