🚀 go-pugleaf

At present, GCC does not know about that many builtins, and it does the
usual call to abort if it gets a call to a builtin that it has parsed,
but does not have patterns for.  The following patch to 1.31 (linenumbers
may be different for 1.30) will change the default to just call the library
routine with the same name as the builtin (ie, __builtin_memcpy in this case).


*** ../.orig/expr.c	Wed Dec  7 08:54:10 1988
--- expr.c	Wed Dec  7 09:02:41 1988
***************
*** 2303,2307 ****
  	  && (DECL_FUNCTION_CODE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0))
  	      != NOT_BUILT_IN))
! 	return expand_builtin (exp, target, subtarget, tmode);
        /* If this call was expanded already by preexpand_calls,
  	 just return the result we got.  */
--- 2303,2307 ----
  	  && (DECL_FUNCTION_CODE (TREE_OPERAND (TREE_OPERAND (exp, 0), 0))
  	      != NOT_BUILT_IN))
! 	return expand_builtin (exp, target, subtarget, tmode, ignore);
        /* If this call was expanded already by preexpand_calls,
  	 just return the result we got.  */
***************
*** 3027,3031 ****
  
  static rtx
! expand_builtin (exp, target, subtarget, mode)
       tree exp;
       rtx target;
--- 3027,3031 ----
  
  static rtx
! expand_builtin (exp, target, subtarget, mode, ignore)
       tree exp;
       rtx target;
***************
*** 3032,3035 ****
--- 3032,3036 ----
       rtx subtarget;
       enum machine_mode mode;
+      int ignore;
  {
    tree fndecl = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
***************
*** 3120,3125 ****
        return target;
  
!     default:
!       abort ();
      }
  }
--- 3121,3126 ----
        return target;
  
!     default:			/* just do library call, if unknown builtin */
! 	return expand_call (exp, target, ignore);
      }
  }

--
Michael Meissner, Data General.

Uucp:	...!mcnc!rti!xyzzy!meissner
Arpa:	meissner@dg-rtp.DG.COM   (or) meissner%dg-rtp.DG.COM@relay.cs.net
-- 
Michael Meissner, Data General.

Uucp:	...!mcnc!rti!xyzzy!meissner
Arpa:	meissner@dg-rtp.DG.COM   (or) meissner%dg-rtp.DG.COM@relay.cs.net