[Bug tree-optimization/60577] [4.7/4.8/4.9 Regression] inefficient FDO instrumentation code

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60577

--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Created attachment 32403
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=32403&action=edit
alternative patch

This restores previous behavior by considering all coverage/profile related
counters to not alias with any other access through a pointer.