(find_and_verify_loops): Properly continue loop after moving a block

of code near a loop exit.

From-SVN: r5826

gcc/loop.c

 /* Move constant computations out of loops.
-   Copyright (C) 1987, 1988, 1989, 1991, 1992 Free Software Foundation, Inc.
+   Copyright (C) 1987, 88, 89, 91, 92, 1993 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -2423,6 +2423,9 @@ find_and_verify_loops (f)
 
 		    if (--LABEL_NUSES (cond_label) == 0)
 		      delete_insn (cond_label);
+
+		    /* This loop will be continued with NEXT_INSN (insn).  */
+		    insn = PREV_INSN (insn);
 		  }
 	      }
 	  }