calls.c (expand_call): Supress sibcall if we have a BLKmode return in registers.

        * calls.c (expand_call): Supress sibcall if we have a
        BLKmode return in registers.

From-SVN: r37076

gcc/ChangeLog

+2000-10-26  Richard Henderson  <rth@redhat.com>
+
+	* calls.c (expand_call): Supress sibcall if we have a 
+	BLKmode return in registers.
+
 2000-10-26  Bernd Schmidt  <bernds@redhat.co.uk>
 
 	* ia64.h (PREFERRED_RELOAD_CLASS): Force floating point constants

gcc/calls.c

@@ -3259,7 +3259,12 @@ expand_call (exp, target, ignore)
 	  emit_move_insn (target, valreg);
 	}
       else if (TYPE_MODE (TREE_TYPE (exp)) == BLKmode)
-	target = copy_blkmode_from_reg (target, valreg, TREE_TYPE (exp));
+	{
+	  target = copy_blkmode_from_reg (target, valreg, TREE_TYPE (exp));
+
+	  /* We can not support sibling calls for this case.  */
+	  sibcall_failure = 1;
+	}
       else
 	target = copy_to_reg (valreg);