[Bug tree-optimization/47447] [4.3/4.4 Regression] "Unable to coalesce ssa_names and " ICE in tree-ssa-coalesce.c when -O3 is used

[asharif at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47447

--- Comment #3 from asharif at gcc dot gnu.org 2011-02-03 22:19:10 UTC ---
Created attachment 23242
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23242
This patch fixes the problem, but may be pessimistic.