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

diff --git a/gcc/reorg.c b/gcc/reorg.c
index ba3ef381e5066de348ddb0e04a76ea0450f3724d..284c5fcd9cb6fcf1b898392c01387b3b8a489851 100644 (file)
--- a/gcc/reorg.c
+++ b/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