Here is a trivial patch that improves the debuggability of recog_data.  Without 
this p recog_data in gdb on linux, didn't seem to work at all.  My fingers were 
not amused.  :-)

Checked it in a obvious.

2013-05-14  Mike Stump  <mikest...@comcast.net>

        * recog.h: Rename struct recog_data to Recog_data.
        * recog.c: Likewise.
        * reload.c (can_reload_into): Likewise.
        * config/picochip/picochip.c: Likewise.

Index: config/picochip/picochip.c
===================================================================
--- config/picochip/picochip.c  (revision 198896)
+++ config/picochip/picochip.c  (working copy)
@@ -187,7 +187,7 @@ struct vliw_state picochip_current_vliw_
 
 /* Save/restore recog_data. */
 static int picochip_saved_which_alternative;
-static struct recog_data picochip_saved_recog_data;
+static struct Recog_data picochip_saved_recog_data;
 
 /* Determine which ALU to use for the instruction in
    picochip_current_prescan_insn. */
@@ -3150,7 +3150,7 @@ picochip_save_recog_data (void)
 {
   picochip_saved_which_alternative = which_alternative;
   memcpy (&picochip_saved_recog_data, &recog_data,
-         sizeof (struct recog_data));
+         sizeof (struct Recog_data));
 }
 
 /* Restore some of the contents of global variable recog_data. */
@@ -3159,7 +3159,7 @@ picochip_restore_recog_data (void)
 {
   which_alternative = picochip_saved_which_alternative;
   memcpy (&recog_data, &picochip_saved_recog_data,
-         sizeof (struct recog_data));
+         sizeof (struct Recog_data));
 }
 
 /* Ensure that no var tracking notes are emitted in the middle of a
Index: recog.c
===================================================================
--- recog.c     (revision 198896)
+++ recog.c     (working copy)
@@ -70,7 +70,7 @@ static rtx split_insn (rtx);
 
 int volatile_ok;
 
-struct recog_data recog_data;
+struct Recog_data recog_data;
 
 /* Contains a vector of operand_alternative structures for every operand.
    Set up by preprocess_constraints.  */
Index: recog.h
===================================================================
--- recog.h     (revision 198896)
+++ recog.h     (working copy)
@@ -179,7 +179,7 @@ extern int which_alternative;
 
 /* The following vectors hold the results from insn_extract.  */
 
-struct recog_data
+struct Recog_data
 {
   /* It is very tempting to make the 5 operand related arrays into a
      structure and index on that.  However, to be source compatible
@@ -245,7 +245,7 @@ struct recog_data
   rtx insn;
 };
 
-extern struct recog_data recog_data;
+extern struct Recog_data recog_data;
 
 /* Contains a vector of operand_alternative structures for every operand.
    Set up by preprocess_constraints.  */
Index: reload.c
===================================================================
--- reload.c    (revision 198896)
+++ reload.c    (working copy)
@@ -895,7 +895,7 @@ can_reload_into (rtx in, int regno, enum
 {
   rtx dst, test_insn;
   int r = 0;
-  struct recog_data save_recog_data;
+  struct Recog_data save_recog_data;
 
   /* For matching constraints, we often get notional input reloads where
      we want to use the original register as the reload register.  I.e.
------------------------------

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