--- gcc/config/a29k/a29k.h	2018/04/24 18:21:47	1.1.1.3
+++ gcc/config/a29k/a29k.h	2018/04/24 18:29:18	1.1.1.4
@@ -1,5 +1,5 @@
 /* Definitions of target machine for GNU compiler, for AMD Am29000 CPU.
-   Copyright (C) 1988, 90, 91, 92, 93, 1994 Free Software Foundation, Inc.
+   Copyright (C) 1988, 90-94, 1995 Free Software Foundation, Inc.
    Contributed by Richard Kenner (kenner@nyu.edu)
 
 This file is part of GNU CC.
@@ -16,7 +16,8 @@ GNU General Public License for more deta
 
 You should have received a copy of the GNU General Public License
 along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
 
 
 /* Names to predefine in the preprocessor for this target machine.  */
@@ -90,6 +91,11 @@ extern int target_flags;
 
 #define TARGET_SOFT_FLOAT	(target_flags & 512)
 
+/* This means that we should not emit the multm or mutmu instructions
+   that some embedded systems' trap handlers don't support.  */
+
+#define TARGET_MULTM		((target_flags & 1024) == 0)
+
 #define TARGET_SWITCHES			\
   { {"dw", 1},				\
     {"ndw", -1},			\
@@ -109,6 +115,7 @@ extern int target_flags;
     {"reuse-arg-regs", -256},		\
     {"no-reuse-arg-regs", 256},		\
     {"soft-float", 512},		\
+    {"no-multm", 1024},			\
     {"", TARGET_DEFAULT}}
 
 #define TARGET_DEFAULT 3
@@ -724,11 +731,12 @@ extern struct rtx_def *a29k_get_reloaded
 
 /* Value is the number of bytes of arguments automatically
    popped when returning from a subroutine call.
+   FUNDECL is the declaration node of the function (as a tree),
    FUNTYPE is the data type of the function (as a tree),
    or for a library call it is an identifier node for the subroutine name.
    SIZE is the number of bytes of arguments passed on the stack.  */
 
-#define RETURN_POPS_ARGS(FUNTYPE,SIZE) 0
+#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
 
 /* Define how to find the value returned by a function.
    VALTYPE is the data type of the value (as a tree).
@@ -777,19 +785,21 @@ extern struct rtx_def *a29k_get_reloaded
 /* Same, but called for incoming args.
 
    On the 29k, we use this to set all argument registers to fixed and
-   set the last 16 local regs (lr112-lr127) to available.  Some
-   will later be changed to call-saved by FUNCTION_INCOMING_ARG.  */
+   set the last 16 local regs, less two, (lr110-lr125) to available.  Some
+   will later be changed to call-saved by FUNCTION_INCOMING_ARG.
+   lr126,lr127 are always fixed, they are place holders for the caller's
+   lr0,lr1.  */
 
-#define INIT_CUMULATIVE_INCOMING_ARGS(CUM,FNTYPE,IGNORE)		\
+#define INIT_CUMULATIVE_INCOMING_ARGS(CUM,FNTYPE,IGNORE)	\
 { int i;							\
-  for (i = R_AR (0); i < R_AR (16); i++)			\
+  for (i = R_AR (0) - 2; i < R_AR (16); i++)			\
     {								\
       fixed_regs[i] = call_used_regs[i] = call_fixed_regs[i] = 1; \
       SET_HARD_REG_BIT (fixed_reg_set, i);			\
       SET_HARD_REG_BIT (call_used_reg_set, i);			\
       SET_HARD_REG_BIT (call_fixed_reg_set, i);			\
     }								\
-  for (i = R_LR (112); i < R_LR (128); i++)					\
+  for (i = R_LR (110); i < R_LR (126); i++)					\
     {								\
       fixed_regs[i] = call_used_regs[i] = call_fixed_regs[i] = 0; \
       CLEAR_HARD_REG_BIT (fixed_reg_set, i);			\
@@ -1082,10 +1092,10 @@ extern char *a29k_function_name;
 /* Maximum number of registers that can appear in a valid memory address.  */
 #define MAX_REGS_PER_ADDRESS 1
 
-/* Recognize any constant value that is a valid address.
+/* Recognize any constant value that is a valid address.  */
 
-   None are on the 29K.  */
-#define CONSTANT_ADDRESS_P(X)  0
+#define CONSTANT_ADDRESS_P(X)  \
+(GET_CODE (X) == CONST_INT && (unsigned) INTVAL (X) < 0x100)
 
 /* Include all constant integers and constant doubles */
 #define LEGITIMATE_CONSTANT_P(X)	1
@@ -1433,6 +1443,12 @@ literal_section ()						\
 extern int a29k_debug_reg_map[];
 #define DBX_REGISTER_NUMBER(REGNO) a29k_debug_reg_map[REGNO]
 
+/* This how to write an assembler directive to FILE to switch to
+   section NAME for DECL.  */
+
+#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME) \
+  fprintf (FILE, "\t.sect %s, bss\n\t.use %s\n", NAME, NAME)
+
 /* This is how to output the definition of a user-level label named NAME,
    such as the label on a static function or variable NAME.  */