[Bug tree-optimization/47056] [4.6 Regression] 10 Ada ACATS tests fail to link with undefined reference on ia64-linux

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47056

--- Comment #7 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2011-01-04 10:53:14 UTC ---
Created attachment 22895
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22895
Tentative fix

This doesn't change GIMPLE but instead tweaks reachability analysis.