[Bug middle-end/50074] [4.7 Regression] gcc.dg/sibcall-6.c execution test on x86_64 with -fPIC

[amylaar at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50074

--- Comment #11 from Jorn Wolfgang Rennecke <amylaar at gcc dot gnu.org> 
2011-11-19 12:03:28 UTC ---
Created attachment 25858
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25858
Patch to make mem_overlaps_already_clobbered_arg_p return false if no arguments
were stored on stack

This patch fixes the sibcall-6.c failure on Epiphany.