re PR fortran/43217 (Output of Hollerith constants which are not a multiple of 4 bytes)

2010-08-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR fortran/43217
	* primary.c (match_hollerith_constant): Calculate padding needed to
	fill default integer and allocate string for that size.  Set pad bytes
	to ' '.
	* gfortran.h: Add hollerith pad value to type spec union.
	* data.c (create_character_initializer): Fix spelling of function name.
	Use hollerith pad value to calculate length.
	* arith.c (hollerith2representation); Use hollerith pad value to
	calculate length.

From-SVN: r163581

gcc/fortran/ChangeLog

+2010-08-27  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR fortran/43217
+	* primary.c (match_hollerith_constant): Calculate padding needed to
+	fill default integer and allocate string for that size.  Set pad bytes
+	to ' '.
+	* gfortran.h: Add hollerith pad value to type spec union.
+	* data.c (create_character_initializer): Fix spelling of function name.
+	Use hollerith pad value to calculate length.
+	* arith.c (hollerith2representation); Use hollerith pad value to
+	calculate length.
+
 2010-08-26  Daniel Kraft  <d@domob.eu>
 
 	PR fortran/38936

gcc/fortran/arith.c

@@ -2260,7 +2260,7 @@ hollerith2representation (gfc_expr *result, gfc_expr *src)
 {
   int src_len, result_len;
 
-  src_len = src->representation.length;
+  src_len = src->representation.length - src->ts.u.pad;
   result_len = gfc_target_expr_size (result);
 
   if (src_len > result_len)

gcc/fortran/data.c

@@ -100,8 +100,8 @@ find_con_by_component (gfc_component *com, gfc_constructor_base base)
    according to normal assignment rules.  */
 
 static gfc_expr *
-create_character_intializer (gfc_expr *init, gfc_typespec *ts,
-			     gfc_ref *ref, gfc_expr *rvalue)
+create_character_initializer (gfc_expr *init, gfc_typespec *ts,
+			      gfc_ref *ref, gfc_expr *rvalue)
 {
   int len, start, end;
   gfc_char_t *dest;
@@ -149,7 +149,7 @@ create_character_intializer (gfc_expr *init, gfc_typespec *ts,
 
   /* Copy the initial value.  */
   if (rvalue->ts.type == BT_HOLLERITH)
-    len = rvalue->representation.length;
+    len = rvalue->representation.length - rvalue->ts.u.pad;
   else
     len = rvalue->value.character.length;
 
@@ -342,7 +342,7 @@ gfc_assign_data_value (gfc_expr *lvalue, gfc_expr *rvalue, mpz_t index)
     {
       if (lvalue->ts.u.cl->length == NULL && !(ref && ref->u.ss.length != NULL))
 	return FAILURE;
-      expr = create_character_intializer (init, last_ts, ref, rvalue);
+      expr = create_character_initializer (init, last_ts, ref, rvalue);
     }
   else
     {

gcc/fortran/gfortran.h

@@ -880,6 +880,7 @@ typedef struct
   {
     struct gfc_symbol *derived;	/* For derived types only.  */
     gfc_charlen *cl;		/* For character types only.  */
+    int pad;			/* For hollerith types only.  */
   }
   u;
 

gcc/fortran/primary.c

@@ -242,7 +242,7 @@ match_hollerith_constant (gfc_expr **result)
   locus old_loc;
   gfc_expr *e = NULL;
   const char *msg;
-  int num;
+  int num, pad;
   int i;  
 
   old_loc = gfc_current_locus;
@@ -279,7 +279,10 @@ match_hollerith_constant (gfc_expr **result)
 	  e = gfc_get_constant_expr (BT_HOLLERITH, gfc_default_character_kind,
 				     &gfc_current_locus);
 
-	  e->representation.string = XCNEWVEC (char, num + 1);
+	  /* Calculate padding needed to fit default integer memory.  */
+	  pad = gfc_default_integer_kind - (num % gfc_default_integer_kind);
+
+	  e->representation.string = XCNEWVEC (char, num + pad + 1);
 
 	  for (i = 0; i < num; i++)
 	    {
@@ -294,8 +297,13 @@ match_hollerith_constant (gfc_expr **result)
 	      e->representation.string[i] = (unsigned char) c;
 	    }
 
-	  e->representation.string[num] = '\0';
-	  e->representation.length = num;
+	  /* Now pad with blanks and end with a null char.  */
+	  for (i = 0; i < pad; i++)
+	    e->representation.string[num + i] = ' ';
+
+	  e->representation.string[num + i] = '\0';
+	  e->representation.length = num + pad;
+	  e->ts.u.pad = pad;
 
 	  *result = e;
 	  return MATCH_YES;