sim: unify sim_cia definition

Almost every target defines sim_cia the same way -- either using the
address_word type directly, or a type of equivalent size.  The only
odd one out is sh64 (who has 32bit address_word and 64bit cia), and
even that case doesn't seem to make sense.  We'll put off clean up
though of sh64 and at least set up a sensible default for everyone.

sim/common/ChangeLog

@@ -1,3 +1,9 @@
+2015-04-18  Mike Frysinger  <vapier@gentoo.org>
+
+	* cgen-engine.h (CIA_ADDR): Delete.
+	* sim-base.h: Update sim_cia example.
+	[!CIA_ADDR] (sim_cia): New typedef.
+
 2015-04-17  Mike Frysinger  <vapier@gentoo.org>
 
 	* cgen-utils.c (cgen_rtx_error): Change CIA_GET to CPU_PC_GET.

sim/common/cgen-engine.h

@@ -186,8 +186,6 @@ do { \
 
 #if WITH_SCACHE
 
-#define CIA_ADDR(cia) (cia)
-
 #if WITH_SCACHE_PBB
 
 /* Return the scache pointer of the current insn.  */
@@ -280,8 +278,6 @@ do { \
 
 /* This is the "simple" engine case.  */
 
-#define CIA_ADDR(cia) (cia)
-
 #define SEM_SEM_ARG(vpc, sc) (sc)
 
 #define SEM_NEXT_VPC(sem_arg, pc, len) ((pc) + (len))

sim/common/sim-base.h

@@ -28,9 +28,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
    information), include ``sim-base.h'':
 
      #include "sim-basics.h"
-     typedef address_word sim_cia;
      /-* If `sim_cia' is not an integral value (e.g. a struct), define
          CIA_ADDR to return the integral value.  *-/
+     /-* typedef struct {...} sim_cia; *-/
      /-* #define CIA_ADDR(cia) (...) *-/
      #include "sim-base.h"
 
@@ -66,6 +66,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
    (e.g. for delay slot handling).  */
 #ifndef CIA_ADDR
 #define CIA_ADDR(cia) (cia)
+typedef address_word sim_cia;
 #endif
 #ifndef INVALID_INSTRUCTION_ADDRESS
 #define INVALID_INSTRUCTION_ADDRESS ((address_word)0 - 1)