gfortran.h (gfc_expr): Remove from_H, add "representation" struct.

* gfortran.h (gfc_expr): Remove from_H, add "representation"
struct.
* primary.c (match_hollerith_constant): Store the representation
of the Hollerith in representation, not in value.character.
* arith.c: Add dependency on target-memory.h.
(eval_intrinsic): Remove check for from_H.
(hollerith2representation): New function.
(gfc_hollerith2int): Determine value of the new constant.
(gfc_hollerith2real): Likewise.
(gfc_hollerith2complex): Likewise.
(gfc_hollerith2logical): Likewise.
(gfc_hollerith2character): Point both representation.string and
value.character.string at the value string.
* data.c (create_character_initializer): For BT_HOLLERITH
rvalues, get the value from the representation rather than
value.character.
* expr.c (free_expr0): Update handling of BT_HOLLERITH values
and values with representation.string.
(gfc_copy_expr): Likewise.
* intrinsic.c (do_simplify): Remove special treatement of
variables resulting from Hollerith constants.
* dump-parse-trees.c (gfc_show_expr): Update handling of
Holleriths.
* trans-const.c (gfc_conv_constant_to_tree): Replace from_H
check with check for representation.string; get Hollerith
representation from representation.string, not value.character.
* trans-expr.c (is_zero_initializer_p): Replace from_H check
with check for representation.string.
* trans-stmt.c (gfc_trans_integer_select): Use
gfc_conv_mpz_to_tree for case values, so as to avoid picking up
the memory representation if the case is given by a transfer
expression.
* target-memory.c (gfc_target_encode_expr): Use the known memory
representation rather than the value, if it exists.
(gfc_target_interpret_expr): Store the memory representation of
the interpreted expression as well as its value.
(interpret_integer): Move to gfc_interpret_integer, make
non-static.
(interpret_float): Move to gfc_interpret_float, make non-static.
(interpret_complex): Move to gfc_interpret_complex, make
non-static.
(interpret_logical): Move to gfc_interpret_logical, make
non-static.
(interpret_character): Move to gfc_interpret_character, make
non-static.
(interpret_derived): Move to gfc_interpret_derived, make
non-static.
* target-memory.h: Add prototypes for newly-exported
gfc_interpret_* functions.

From-SVN: r125135

1 files changed, 17 insertions, 4 deletions

diff --git a/gcc/fortran/data.c b/gcc/fortran/data.c
index 70a7151..75e4241 100644
--- a/gcc/fortran/data.c
+++ b/gcc/fortran/data.c
@@ -154,7 +154,7 @@ create_character_intializer (gfc_expr *init, gfc_typespec *ts,
   int len;
   int start;
   int end;
-  char *dest;
+  char *dest, *rvalue_string;
 	    
   gfc_extract_int (ts->cl->length, &len);
 
@@ -207,7 +207,17 @@ create_character_intializer (gfc_expr *init, gfc_typespec *ts,
     }
 
   /* Copy the initial value.  */
-  len = rvalue->value.character.length;
+  if (rvalue->ts.type == BT_HOLLERITH)
+    {
+      len = rvalue->representation.length;
+      rvalue_string = rvalue->representation.string;
+    }
+  else
+    {
+      len = rvalue->value.character.length;
+      rvalue_string = rvalue->value.character.string;
+    }
+
   if (len > end - start)
     {
       len = end - start;
@@ -215,14 +225,17 @@ create_character_intializer (gfc_expr *init, gfc_typespec *ts,
 		       "at %L", &rvalue->where);
     }
 
-  memcpy (&dest[start], rvalue->value.character.string, len);
+  memcpy (&dest[start], rvalue_string, len);
 
   /* Pad with spaces.  Substrings will already be blanked.  */
   if (len < end - start && ref == NULL)
     memset (&dest[start + len], ' ', end - (start + len));
 
   if (rvalue->ts.type == BT_HOLLERITH)
-    init->from_H = 1;
+    {
+      init->representation.length = init->value.character.length;
+      init->representation.string = init->value.character.string;
+    }
 
   return init;
 }