invoke.texi (H8/300 Options): Add -ms2600.

        * invoke.texi (H8/300 Options): Add -ms2600.
        * config/h8300.c (h8300_init_once): Output an error when -ms2600
        is used without -ms.
        * config/h8300.h (TARGET_MAC): New.
        (TARGET_SWITCHES): Add -ms2600 and -mno-s2600.
        (CONDITIONA_REGISTER_USAGE): Disable the mac register on any
        machine other than H8/S2600.
        * config/h8300.md: Accept mac instructions on the H8/S2600 instead
        of the H8/S2000.

From-SVN: r36414

gcc/ChangeLog

+2000-09-14  Kazu Hirata  <kazu@hxi.com>
+
+	* invoke.texi (H8/300 Options): Add -ms2600.
+	* config/h8300.c (h8300_init_once): Output an error when -ms2600
+	is used without -ms.
+	* config/h8300.h (TARGET_MAC): New.
+	(TARGET_SWITCHES): Add -ms2600 and -mno-s2600.
+	(CONDITIONA_REGISTER_USAGE): Disable the mac register on any
+	machine other than H8/S2600.
+	* config/h8300.md: Accept mac instructions on the H8/S2600 instead
+	of the H8/S2000.
+
 2000-09-14  Alexandre Oliva  <aoliva@redhat.com>, Bernd Schmidt  <bernds@redhat.co.uk>
 
 	* reload.c (find_reloads_address_1): Generate reloads for auto_inc

gcc/config/h8300/h8300.c

@@ -107,6 +107,9 @@ h8300_init_once ()
   h8_push_op = h8_push_ops[cpu_type];
   h8_pop_op = h8_pop_ops[cpu_type];
   h8_mov_op = h8_mov_ops[cpu_type];
+
+  if (!TARGET_H8300S && TARGET_MAC)
+    fatal ("-ms2600 is used without -ms.");
 }
 
 const char *

gcc/config/h8300/h8300.h

@@ -88,6 +88,9 @@ extern int target_flags;
 #define TARGET_H8300H	(target_flags & 4096)
 #define TARGET_H8300S	(target_flags & 1)
 
+/* mac register and relevant instructions are available.  */
+#define TARGET_MAC    (target_flags & 2)
+
 /* Align all values on the H8/300H the same way as the H8/300.  Specifically,
    32 bit and larger values are aligned on 16 bit boundaries.
    This is all the hardware requires, but the default is 32 bits for the 300H.
@@ -104,6 +107,8 @@ extern int target_flags;
 #define TARGET_SWITCHES  \
   { {"s",		1,     N_("Generate H8/S code")},		\
     {"no-s",		-1,    N_("Do not generate H8/S code")},	\
+    {"s2600",		2,     N_("Generate H8/S2600 code")},           \
+    {"no-s2600",	-2,    N_("Do not generate H8/S2600 code")},    \
     {"int32",		8,     N_("Make integers 32 bits wide")},	\
     {"addresses",	64,    NULL},					\
     {"quickcall",	128,						\
@@ -280,10 +285,10 @@ extern int target_flags;
 #define REG_ALLOC_ORDER \
   { 2, 3, 0, 1, 4, 5, 6, 8, 7, 9}
 
-#define CONDITIONAL_REGISTER_USAGE	\
-{					\
-  if (!TARGET_H8300S)			\
-    fixed_regs[8] = call_used_regs[8] = 1;\
+#define CONDITIONAL_REGISTER_USAGE		\
+{						\
+  if (!TARGET_MAC)				\
+    fixed_regs[8] = call_used_regs[8] = 1;	\
 }
 
 /* Return number of consecutive hard regs needed starting at reg REGNO

gcc/config/h8300/h8300.md

@@ -819,7 +819,7 @@
 	    (mem:HI (post_inc:SI (match_operand:SI 1 "register_operand" "r"))))
 	  (sign_extend:SI
 	    (mem:HI (post_inc:SI (match_operand:SI 2 "register_operand" "r"))))))]
-  "TARGET_H8300S"
+  "TARGET_MAC"
   "clrmac\;mac	@%2+,@%1+"
   [(set_attr "length" "6")
    (set_attr "cc" "none_0hit")])
@@ -832,7 +832,7 @@
 	  (sign_extend:SI (mem:HI
 	    (post_inc:SI (match_operand:SI 2 "register_operand" "r")))))
 	      (match_operand:SI 3 "register_operand" "0")))]
-  "TARGET_H8300S"
+  "TARGET_MAC"
   "mac	@%2+,@%1+"
   [(set_attr "length" "4")
    (set_attr "cc" "none_0hit")])

gcc/invoke.texi

@@ -6681,6 +6681,9 @@ Generate code for the H8/300H.
 @item -ms
 Generate code for the H8/S.
 
+@item -ms2600
+Generate code for the H8/S2600.  This switch must be used with -ms.
+
 @item -mint32
 Make @code{int} data 32 bits by default.