RFA (bfin): fix PR46737

[Joern Rennecke]

cross-built on x86_64-pc-linux-gnu .
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2010-12-06  Joern Rennecke  <amylaar@spamcop.net>

	PR target/46737
	* config/bfin/bfin.c (BB_AUX_INDEX): Cast to size_t.
	(bfin_reorder_loops): Change type of index to size_t.

Index: config/bfin/bfin.c
===================================================================
--- config/bfin/bfin.c	(revision 167494)
+++ config/bfin/bfin.c	(working copy)
@@ -4662,7 +4662,7 @@ free_loops (loop_info loops)
     }
 }
 
-#define BB_AUX_INDEX(BB) ((unsigned)(BB)->aux)
+#define BB_AUX_INDEX(BB) ((size_t)(BB)->aux)
 
 /* The taken-branch edge from the loop end can actually go forward.  Since the
    Blackfin's LSETUP instruction requires that the loop end be after the loop
@@ -4679,7 +4679,7 @@ bfin_reorder_loops (loop_info loops, FIL
 
   for (loop = loops; loop; loop = loop->next)
     {
-      unsigned index;
+      size_t index;
       basic_block bb;
       edge e;
       edge_iterator ei;