ia64.c (ia64_expand_call): Don't add ar.pfs for sibcalls.

        * config/ia64/ia64.c (ia64_expand_call): Don't add ar.pfs for sibcalls.
        (ia64_split_call): Only load descriptor for GP register inputs.
        (ia64_expand_epilogue): Check current_frame_info.mask not
        current_function_is_leaf to restore ar.pfs.

From-SVN: r68549

gcc/ChangeLog

@@ -3,6 +3,13 @@
 	* config/ia64/ia64.h (REGISTER_NAMES): R0 is really AP.
 
 2003-06-26  Richard Henderson  <rth@redhat.com>
+
+	* config/ia64/ia64.c (ia64_expand_call): Don't add ar.pfs for sibcalls.
+	(ia64_split_call): Only load descriptor for GP register inputs.
+	(ia64_expand_epilogue): Check current_frame_info.mask not
+	current_function_is_leaf to restore ar.pfs.
+
+2003-06-26  Richard Henderson  <rth@redhat.com>
 	
 	* emit-rtl.c (try_split): Append to new CALL_INSN_FUNCTION_USAGE
 	instead of replacing it.

gcc/config/ia64/ia64.c

@@ -1499,11 +1499,7 @@ ia64_expand_call (retval, addr, nextarg, sibcall_p)
     }
 
   if (sibcall_p)
-    {
-      use_reg (&CALL_INSN_FUNCTION_USAGE (insn), b0);
-      use_reg (&CALL_INSN_FUNCTION_USAGE (insn),
-	       gen_rtx_REG (DImode, AR_PFS_REGNUM));
-    }
+    use_reg (&CALL_INSN_FUNCTION_USAGE (insn), b0);
 }
 
 void
@@ -1557,7 +1553,7 @@ ia64_split_call (retval, addr, retaddr, scratch_r, scratch_b,
 
   /* If we find we're calling through a register, then we're actually
      calling through a descriptor, so load up the values.  */
-  if (REG_P (addr))
+  if (REG_P (addr) && GR_REGNO_P (REGNO (addr)))
     {
       rtx tmp;
       bool addr_dead_p;
@@ -2785,7 +2781,7 @@ ia64_expand_epilogue (sibcall_p)
       reg = gen_rtx_REG (DImode, AR_PFS_REGNUM);
       emit_move_insn (reg, alt_reg);
     }
-  else if (! current_function_is_leaf)
+  else if (TEST_HARD_REG_BIT (current_frame_info.mask, AR_PFS_REGNUM))
     {
       alt_regno = next_scratch_gr_reg ();
       alt_reg = gen_rtx_REG (DImode, alt_regno);