crx.c: Implemented crx_decompose_address (like in the i386 port) so that...

	* config/crx/crx.c: Implemented crx_decompose_address (like in the
	  i386 port) so that crx_legitimate_address_p, crx_address_cost
	  and crx_print_operand_address are using the same code for adress
	  handling. Using symbolic displacements now gets rejected since
	  the CRX register relative adressing mode can't handle unsigned
	  32-bit values as displacements.
	* config/crx/crx.h: Simplified definitions for REG_OK_FOR_BASE_P,
	  removed redundant parenthesis and obsolete macros.
	* config/crx/crx.opt: Added a new switch for debugging of address
	  handling.
	* config/crx/crx-protos.h: Added new declarations for above.

From-SVN: r103269

gcc/config/crx/crx-protos.h

@@ -42,6 +42,18 @@ extern rtx crx_function_arg (struct cumulative_args *, enum machine_mode, tree,
 
 #ifdef RTX_CODE
 /* Addressing Modes.  */
+struct crx_address
+{
+  rtx base, index, disp, side_effect;
+  int scale;
+};
+
+enum crx_addrtype
+{
+  CRX_INVALID, CRX_REG_REL, CRX_POST_INC, CRX_SCALED_INDX, CRX_ABSOLUTE
+};
+
+extern enum crx_addrtype crx_decompose_address (rtx addr, struct crx_address *out);
 extern int crx_legitimate_address_p (enum machine_mode, rtx, int);
 
 extern int crx_const_double_ok (rtx op);

gcc/config/crx/crx.h

@@ -223,7 +223,6 @@ enum reg_class
    || (reg_renumber && (unsigned)reg_renumber[REGNO] < 16))
 
 #define REGNO_OK_FOR_INDEX_P(REGNO)	   REGNO_OK_FOR_BASE_P(REGNO)
-#define REGNO_OK_FOR_INDEXED_BASE_P(REGNO) REGNO_OK_FOR_BASE_P(REGNO)
 
 #define PREFERRED_RELOAD_CLASS(X,CLASS) CLASS
 
@@ -329,7 +328,7 @@ struct cumulative_args
 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
   crx_function_arg_advance(&(CUM), (MODE), (TYPE), (NAMED))
 
-#define FUNCTION_ARG_REGNO_P(REGNO)  crx_function_arg_regno_p((REGNO))
+#define FUNCTION_ARG_REGNO_P(REGNO)  crx_function_arg_regno_p(REGNO)
 
 /*****************************************************************************/
 /* RETURNING FUNCTION VALUE						     */
@@ -384,22 +383,12 @@ struct cumulative_args
 #define HAVE_POST_MODIFY_DISP 1
 #define HAVE_POST_MODIFY_REG 0
 
-#define STRICT_REG_OK_FOR_BASE_P(X)	    REGNO_OK_FOR_BASE_P (REGNO (X))
-#define STRICT_REG_OK_FOR_INDEX_P(X)	    REGNO_OK_FOR_INDEX_P(REGNO(X))
-#define STRICT_REG_OK_FOR_INDEXED_BASE_P(X) REGNO_OK_FOR_INDEXED_BASE_P(REGNO(X))
-
-#define NONSTRICT_REG_OK_FOR_BASE_P(X)		1
-#define NONSTRICT_REG_OK_FOR_INDEX_P(X)		1
-#define NONSTRICT_REG_OK_FOR_INDEXED_BASE_P(X)	1
-
 #ifdef REG_OK_STRICT
-#define REG_OK_FOR_BASE_P(X)		STRICT_REG_OK_FOR_BASE_P(X)
-#define REG_OK_FOR_INDEX_P(X)		STRICT_REG_OK_FOR_INDEX_P(X)
-#define REG_OK_FOR_INDEXED_BASE_P(X)	STRICT_REG_OK_FOR_INDEXED_BASE_P(X)
+#define REG_OK_FOR_BASE_P(X)	REGNO_OK_FOR_BASE_P (REGNO (X))
+#define REG_OK_FOR_INDEX_P(X)	REGNO_OK_FOR_INDEX_P (REGNO (X))
 #else
-#define REG_OK_FOR_BASE_P(X)		NONSTRICT_REG_OK_FOR_BASE_P(X)
-#define REG_OK_FOR_INDEX_P(X)		NONSTRICT_REG_OK_FOR_INDEX_P(X)
-#define REG_OK_FOR_INDEXED_BASE_P(X)	NONSTRICT_REG_OK_FOR_INDEXED_BASE_P(X)
+#define REG_OK_FOR_BASE_P(X)	1
+#define REG_OK_FOR_INDEX_P(X)	1
 #endif /* REG_OK_STRICT */
 
 #ifdef REG_OK_STRICT
@@ -414,9 +403,7 @@ struct cumulative_args
   if (crx_legitimate_address_p (MODE, X, 0))				\
       goto LABEL;							\
 }
-#endif
-
-#define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN)	{}
+#endif /* REG_OK_STRICT */
 
 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL)			\
 {									\

gcc/config/crx/crx.opt

@@ -26,3 +26,6 @@ Support multiply accumulate instructions
 mno-push-args
 Target Report RejectNegative Mask(NO_PUSH_ARGS)
 Do not use push to store function arguments
+
+mdebug-addr
+Target RejectNegative Var(TARGET_DEBUG_ADDR) Undocumented