http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54871
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED AssignedTo|unassigned at gcc dot |ebotcazou at gcc dot |gnu.org |gnu.org --- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-10-12 21:37:35 UTC --- Created attachment 28437 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28437 Reduced testcase The loop2_unroll dump reads: Loop 3 is simple: simple exit 10 -> 12 number of iterations: (const_int -1 [0xffffffffffffffff]) upper bound: 1073741823 realistic bound: -1 The number of iterations is of course bogus.