re PR middle-end/35595 (build broke in newlib erf_lgamma.c for cris-elf)

	PR middle-end/35595
	* tree-ssa-pre.c (bitmap_find_leader): Handle expression
	being a PHI_NODE.

From-SVN: r133237

gcc/ChangeLog

+2008-03-15  Richard Guenther  <rguenther@suse.de>
+
+	PR middle-end/35595
+	* tree-ssa-pre.c (bitmap_find_leader): Handle expression
+	being a PHI_NODE.
+
 2008-03-14  Bob Wilson  <bob.wilson@acm.org>
 	
 	* doc/invoke.texi (Option Summary, Xtensa Options): Document

gcc/tree-ssa-pre.c

@@ -1431,7 +1431,8 @@ bitmap_find_leader (bitmap_set_t set, tree val, tree stmt)
 	  if (stmt)
 	    {
 	      tree def_stmt = SSA_NAME_DEF_STMT (val);
-	      if (bb_for_stmt (def_stmt) == bb_for_stmt (stmt)
+	      if (TREE_CODE (def_stmt) != PHI_NODE
+		  && bb_for_stmt (def_stmt) == bb_for_stmt (stmt)
 		  && stmt_ann (def_stmt)->uid >= stmt_ann (stmt)->uid)
 		continue;
 	    }