[Bug bootstrap/51796] [4.7 regression] internal compiler error: in distribute_notes, at combine.c:13285 for libgomp/alloc.c on m68k-linux

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51796

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-09 
23:24:16 UTC ---
Created attachment 26288
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26288
gcc47-pr51796.patch

Ah, REG_UNUSED might be still in next_note chain, not processed yet by
distribute_notes.  Completely (not even compile time) tested patch.