http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49519
--- Comment #32 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-15 14:12:04 UTC --- Can we check 2 cases: 1. Indirect function call via a register (PR 50074). 2. Non of function arguments are pointers (PR 49179).