reorg.c: (mark_referenced_resource): if frame_pointer_needed...

* reorg.c: (mark_referenced_resource): if frame_pointer_needed,
HARD_FRAME_POINTER_REGNUM is also a referenced resource.
(mark_target_live_regs): value in HARD_FRAME_POINTER_REGNUM is not
call-clobbered.
(dbr_schedule): HARD_FRAME_POINTER_REGNUM should be valid at the
end of a function.

From-SVN: r5464

gcc/reorg.c

@@ -390,7 +390,12 @@ mark_referenced_resources (x, res, include_delayed_effects)
 	  res->memory = 1;
 	  SET_HARD_REG_BIT (res->regs, STACK_POINTER_REGNUM);
 	  if (frame_pointer_needed)
-	    SET_HARD_REG_BIT (res->regs, FRAME_POINTER_REGNUM);
+	    {
+	      SET_HARD_REG_BIT (res->regs, FRAME_POINTER_REGNUM);
+#if FRAME_POINTER_REGNUM != HARD_FRAME_POINTER_REGNUM
+	      SET_HARD_REG_BIT (res->regs, HARD_FRAME_POINTER_REGNUM);
+#endif
+	    }
 
 	  for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
 	    if (global_regs[i])
@@ -2445,6 +2450,9 @@ mark_target_live_regs (target, res)
 		if (call_used_regs[i]
 		    && i != STACK_POINTER_REGNUM && i != FRAME_POINTER_REGNUM
 		    && i != ARG_POINTER_REGNUM
+#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM
+		    && i != HARD_FRAME_POINTER_REGNUM
+#endif
 #if ARG_POINTER_REGNUM != FRAME_POINTER_REGNUM
 		    && ! (i == ARG_POINTER_REGNUM && fixed_regs[i])
 #endif
@@ -4067,6 +4075,9 @@ dbr_schedule (first, file)
   if (frame_pointer_needed)
     {
       SET_HARD_REG_BIT (end_of_function_needs.regs, FRAME_POINTER_REGNUM);
+#if HARD_FRAME_POINTER_REGNUM != FRAME_POINTER_REGNUM
+      SET_HARD_REG_BIT (end_of_function_needs.regs, HARD_FRAME_POINTER_REGNUM);
+#endif
 #ifdef EXIT_IGNORE_STACK
       if (! EXIT_IGNORE_STACK)
 #endif