It's unused (phew). Applied.
Richard. 2013-11-25 Richard Biener <rguent...@suse.de> * tree-dfa.c: Remove unused convert.h include. Index: tree-dfa.c =================================================================== --- tree-dfa.c (revision 205344) +++ tree-dfa.c (working copy) @@ -47,7 +47,6 @@ along with GCC; see the file COPYING3. #include "tree-dfa.h" #include "tree-inline.h" #include "tree-pass.h" -#include "convert.h" #include "params.h" /* Build and maintain data flow information for trees. */