--- gcc/config/a29k/a29k.c	2018/04/24 18:15:31	1.1.1.2
+++ gcc/config/a29k/a29k.c	2018/04/24 18:21:48	1.1.1.3
@@ -1,5 +1,5 @@
 /* Subroutines used for code generation on AMD Am29000.
-   Copyright (C) 1987, 88, 90, 91, 92, 1993 Free Software Foundation, Inc.
+   Copyright (C) 1987, 88, 90, 91, 92, 93, 1994 Free Software Foundation, Inc.
    Contributed by Richard Kenner (kenner@nyu.edu)
 
 This file is part of GNU CC.
@@ -233,7 +233,7 @@ accum_reg_operand (op, mode)
      enum machine_mode mode;
 {
   return (GET_CODE (op) == REG
-	  && REGNO (op) >= R_ACC (0) && REGNO (op) <= R_ACC (3));
+	  && REGNO (op) >= R_ACU (0) && REGNO (op) <= R_ACU (3));
 }
 
 /* Returns 1 if OP is a normal data register.  */
@@ -282,6 +282,22 @@ srcb_operand (op, mode)
   return gpc_reg_operand (op, mode);
 }
 
+int
+cmplsrcb_operand (op, mode)
+      register rtx op;
+      enum machine_mode mode;
+{
+  if (GET_CODE (op) == CONST_INT
+      && (mode == QImode
+	  || (INTVAL (op) & 0xffffff00) == 0xffffff00))
+    return 1;
+
+  if (GET_MODE (op) != mode && mode != VOIDmode)
+    return 0;
+
+  return gpc_reg_operand (op, mode);
+}
+
 /* Return 1 if OP is either an immediate or a general register.  This is used
    for the input operand of mtsr/mtrsim.  */
 
@@ -802,6 +818,33 @@ incoming_reg (start, count)
   return R_AR (start);
 }
 
+/* Add CLOBBERs to CALL_INSN_FUNCTION_USAGE chain of INSN indicating
+   that LR2 up to, but not including, OP are clobbered.  If OP is
+   zero, indicate all parameter registers are clobbered.  */
+
+void
+a29k_clobbers_to (insn, op)
+     rtx insn;
+     rtx op;
+{
+  int i;
+  int high_regno;
+
+  if (op == 0)
+    high_regno = R_LR (18);
+  else if (GET_CODE (op) != REG || REGNO (op) < R_LR (0)
+	   || REGNO (op) > R_LR (18))
+    abort ();
+  else
+    high_regno = REGNO (op);
+
+  for (i = R_LR (2); i < high_regno; i++)
+    CALL_INSN_FUNCTION_USAGE (insn)
+      = gen_rtx (EXPR_LIST, VOIDmode,
+		 gen_rtx (CLOBBER, VOIDmode, gen_rtx (REG, SImode, i)),
+		 CALL_INSN_FUNCTION_USAGE (insn));
+}
+
 /* These routines are used in finding insns to fill delay slots in the
    epilogue.  */