[Bug rtl-optimization/48721] [4.6/4.7 Regression] ICE: verify_flow_info failed: missing barrier after block 6 with -foptimize-sibling-calls -fsched2-use-superblocks

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48721

--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-11-30 
12:51:35 UTC ---
Created attachment 25951
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25951
gcc47-pr48721.patch

begin_move_insn can be easily fixed, the question is why we try to schedule the
tail call insn over the restore of r12, which is a call saved register and
therefore has to be restored.