[GCC 4.8] Initial check-in of GCC 4.8.0

Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771

1 files changed, 631 insertions, 0 deletions

diff --git a/gcc-4.8/libgfortran/intrinsics/unpack_generic.c b/gcc-4.8/libgfortran/intrinsics/unpack_generic.c
new file mode 100644
index 000000000..d06e0a99e
--- /dev/null
+++ b/gcc-4.8/libgfortran/intrinsics/unpack_generic.c
@@ -0,0 +1,631 @@
+/* Generic implementation of the UNPACK intrinsic
+   Copyright (C) 2002-2013 Free Software Foundation, Inc.
+   Contributed by Paul Brook <paul@nowt.org>
+
+This file is part of the GNU Fortran runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Ligbfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+/* All the bounds checking for unpack in one function.  If field is NULL,
+   we don't check it, for the unpack0 functions.  */
+
+static void
+unpack_bounds (gfc_array_char *ret, const gfc_array_char *vector,
+	 const gfc_array_l1 *mask, const gfc_array_char *field)
+{
+  index_type vec_size, mask_count;
+  vec_size = size0 ((array_t *) vector);
+  mask_count = count_0 (mask);
+  if (vec_size < mask_count)
+    runtime_error ("Incorrect size of return value in UNPACK"
+		   " intrinsic: should be at least %ld, is"
+		   " %ld", (long int) mask_count,
+		   (long int) vec_size);
+
+  if (field != NULL)
+    bounds_equal_extents ((array_t *) field, (array_t *) mask,
+			  "FIELD", "UNPACK");
+
+  if (ret->base_addr != NULL)
+    bounds_equal_extents ((array_t *) ret, (array_t *) mask,
+			  "return value", "UNPACK");
+
+}
+
+static void
+unpack_internal (gfc_array_char *ret, const gfc_array_char *vector,
+		 const gfc_array_l1 *mask, const gfc_array_char *field,
+		 index_type size)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type rs;
+  char * restrict rptr;
+  /* v.* indicates the vector array.  */
+  index_type vstride0;
+  char *vptr;
+  /* f.* indicates the field array.  */
+  index_type fstride[GFC_MAX_DIMENSIONS];
+  index_type fstride0;
+  const char *fptr;
+  /* m.* indicates the mask array.  */
+  index_type mstride[GFC_MAX_DIMENSIONS];
+  index_type mstride0;
+  const GFC_LOGICAL_1 *mptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type n;
+  index_type dim;
+
+  int empty;
+  int mask_kind;
+
+  empty = 0;
+
+  mptr = mask->base_addr;
+
+  /* Use the same loop for all logical types, by using GFC_LOGICAL_1
+     and using shifting to address size and endian issues.  */
+
+  mask_kind = GFC_DESCRIPTOR_SIZE (mask);
+
+  if (mask_kind == 1 || mask_kind == 2 || mask_kind == 4 || mask_kind == 8
+#ifdef HAVE_GFC_LOGICAL_16
+      || mask_kind == 16
+#endif
+      )
+    {
+      /*  Don't convert a NULL pointer as we use test for NULL below.  */
+      if (mptr)
+	mptr = GFOR_POINTER_TO_L1 (mptr, mask_kind);
+    }
+  else
+    runtime_error ("Funny sized logical array");
+
+  if (ret->base_addr == NULL)
+    {
+      /* The front end has signalled that we need to populate the
+	 return array descriptor.  */
+      dim = GFC_DESCRIPTOR_RANK (mask);
+      rs = 1;
+      for (n = 0; n < dim; n++)
+	{
+	  count[n] = 0;
+	  GFC_DIMENSION_SET(ret->dim[n], 0,
+			    GFC_DESCRIPTOR_EXTENT(mask,n) - 1, rs);
+	  extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n);
+	  empty = empty || extent[n] <= 0;
+	  rstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(ret, n);
+	  fstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(field, n);
+	  mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, n);
+	  rs *= extent[n];
+	}
+      ret->offset = 0;
+      ret->base_addr = xmalloc (rs * size);
+    }
+  else
+    {
+      dim = GFC_DESCRIPTOR_RANK (ret);
+      for (n = 0; n < dim; n++)
+	{
+	  count[n] = 0;
+	  extent[n] = GFC_DESCRIPTOR_EXTENT(ret,n);
+	  empty = empty || extent[n] <= 0;
+	  rstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(ret, n);
+	  fstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(field, n);
+	  mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask, n);
+	}
+    }
+
+  if (empty)
+    return;
+
+  vstride0 = GFC_DESCRIPTOR_STRIDE_BYTES(vector,0);
+  rstride0 = rstride[0];
+  fstride0 = fstride[0];
+  mstride0 = mstride[0];
+  rptr = ret->base_addr;
+  fptr = field->base_addr;
+  vptr = vector->base_addr;
+
+  while (rptr)
+    {
+      if (*mptr)
+        {
+          /* From vector.  */
+          memcpy (rptr, vptr, size);
+          vptr += vstride0;
+        }
+      else
+        {
+          /* From field.  */
+          memcpy (rptr, fptr, size);
+        }
+      /* Advance to the next element.  */
+      rptr += rstride0;
+      fptr += fstride0;
+      mptr += mstride0;
+      count[0]++;
+      n = 0;
+      while (count[n] == extent[n])
+        {
+          /* When we get to the end of a dimension, reset it and increment
+             the next dimension.  */
+          count[n] = 0;
+          /* We could precalculate these products, but this is a less
+             frequently used path so probably not worth it.  */
+          rptr -= rstride[n] * extent[n];
+          fptr -= fstride[n] * extent[n];
+          mptr -= mstride[n] * extent[n];
+          n++;
+          if (n >= dim)
+            {
+              /* Break out of the loop.  */
+              rptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              rptr += rstride[n];
+              fptr += fstride[n];
+              mptr += mstride[n];
+            }
+        }
+    }
+}
+
+extern void unpack1 (gfc_array_char *, const gfc_array_char *,
+		     const gfc_array_l1 *, const gfc_array_char *);
+export_proto(unpack1);
+
+void
+unpack1 (gfc_array_char *ret, const gfc_array_char *vector,
+	 const gfc_array_l1 *mask, const gfc_array_char *field)
+{
+  index_type type_size;
+  index_type size;
+
+  if (unlikely(compile_options.bounds_check))
+    unpack_bounds (ret, vector, mask, field);
+
+  type_size = GFC_DTYPE_TYPE_SIZE (vector);
+  size = GFC_DESCRIPTOR_SIZE (vector);
+
+  switch(type_size)
+    {
+    case GFC_DTYPE_LOGICAL_1:
+    case GFC_DTYPE_INTEGER_1:
+    case GFC_DTYPE_DERIVED_1:
+      unpack1_i1 ((gfc_array_i1 *) ret, (gfc_array_i1 *) vector,
+		  mask, (gfc_array_i1 *) field);
+      return;
+
+    case GFC_DTYPE_LOGICAL_2:
+    case GFC_DTYPE_INTEGER_2:
+      unpack1_i2 ((gfc_array_i2 *) ret, (gfc_array_i2 *) vector,
+		  mask, (gfc_array_i2 *) field);
+      return;
+
+    case GFC_DTYPE_LOGICAL_4:
+    case GFC_DTYPE_INTEGER_4:
+      unpack1_i4 ((gfc_array_i4 *) ret, (gfc_array_i4 *) vector,
+		  mask, (gfc_array_i4 *) field);
+      return;
+
+    case GFC_DTYPE_LOGICAL_8:
+    case GFC_DTYPE_INTEGER_8:
+      unpack1_i8 ((gfc_array_i8 *) ret, (gfc_array_i8 *) vector,
+		  mask, (gfc_array_i8 *) field);
+      return;
+
+#ifdef HAVE_GFC_INTEGER_16
+    case GFC_DTYPE_LOGICAL_16:
+    case GFC_DTYPE_INTEGER_16:
+      unpack1_i16 ((gfc_array_i16 *) ret, (gfc_array_i16 *) vector,
+		   mask, (gfc_array_i16 *) field);
+      return;
+#endif
+
+    case GFC_DTYPE_REAL_4:
+      unpack1_r4 ((gfc_array_r4 *) ret, (gfc_array_r4 *) vector,
+		  mask, (gfc_array_r4 *) field);
+      return;
+
+    case GFC_DTYPE_REAL_8:
+      unpack1_r8 ((gfc_array_r8 *) ret, (gfc_array_r8 *) vector,
+		  mask, (gfc_array_r8 *) field);
+      return;
+
+/* FIXME: This here is a hack, which will have to be removed when
+   the array descriptor is reworked.  Currently, we don't store the
+   kind value for the type, but only the size.  Because on targets with
+   __float128, we have sizeof(logn double) == sizeof(__float128),
+   we cannot discriminate here and have to fall back to the generic
+   handling (which is suboptimal).  */
+#if !defined(GFC_REAL_16_IS_FLOAT128)
+# ifdef HAVE_GFC_REAL_10
+    case GFC_DTYPE_REAL_10:
+      unpack1_r10 ((gfc_array_r10 *) ret, (gfc_array_r10 *) vector,
+		   mask, (gfc_array_r10 *) field);
+      return;
+# endif
+
+# ifdef HAVE_GFC_REAL_16
+    case GFC_DTYPE_REAL_16:
+      unpack1_r16 ((gfc_array_r16 *) ret, (gfc_array_r16 *) vector,
+		   mask, (gfc_array_r16 *) field);
+      return;
+# endif
+#endif
+
+    case GFC_DTYPE_COMPLEX_4:
+      unpack1_c4 ((gfc_array_c4 *) ret, (gfc_array_c4 *) vector,
+		  mask, (gfc_array_c4 *) field);
+      return;
+
+    case GFC_DTYPE_COMPLEX_8:
+      unpack1_c8 ((gfc_array_c8 *) ret, (gfc_array_c8 *) vector,
+		  mask, (gfc_array_c8 *) field);
+      return;
+
+/* FIXME: This here is a hack, which will have to be removed when
+   the array descriptor is reworked.  Currently, we don't store the
+   kind value for the type, but only the size.  Because on targets with
+   __float128, we have sizeof(logn double) == sizeof(__float128),
+   we cannot discriminate here and have to fall back to the generic
+   handling (which is suboptimal).  */
+#if !defined(GFC_REAL_16_IS_FLOAT128)
+# ifdef HAVE_GFC_COMPLEX_10
+    case GFC_DTYPE_COMPLEX_10:
+      unpack1_c10 ((gfc_array_c10 *) ret, (gfc_array_c10 *) vector,
+		   mask, (gfc_array_c10 *) field);
+      return;
+# endif
+
+# ifdef HAVE_GFC_COMPLEX_16
+    case GFC_DTYPE_COMPLEX_16:
+      unpack1_c16 ((gfc_array_c16 *) ret, (gfc_array_c16 *) vector,
+		   mask, (gfc_array_c16 *) field);
+      return;
+# endif
+#endif
+
+    case GFC_DTYPE_DERIVED_2:
+      if (GFC_UNALIGNED_2(ret->base_addr) || GFC_UNALIGNED_2(vector->base_addr)
+	  || GFC_UNALIGNED_2(field->base_addr))
+	break;
+      else
+	{
+	  unpack1_i2 ((gfc_array_i2 *) ret, (gfc_array_i2 *) vector,
+		      mask, (gfc_array_i2 *) field);
+	  return;
+	}
+
+    case GFC_DTYPE_DERIVED_4:
+      if (GFC_UNALIGNED_4(ret->base_addr) || GFC_UNALIGNED_4(vector->base_addr)
+	  || GFC_UNALIGNED_4(field->base_addr))
+	break;
+      else
+	{
+	  unpack1_i4 ((gfc_array_i4 *) ret, (gfc_array_i4 *) vector,
+		      mask, (gfc_array_i4 *) field);
+	  return;
+	}
+
+    case GFC_DTYPE_DERIVED_8:
+      if (GFC_UNALIGNED_8(ret->base_addr) || GFC_UNALIGNED_8(vector->base_addr)
+	  || GFC_UNALIGNED_8(field->base_addr))
+	break;
+      else
+	{
+	  unpack1_i8 ((gfc_array_i8 *) ret, (gfc_array_i8 *) vector,
+		      mask, (gfc_array_i8 *) field);
+	  return;
+	}
+
+#ifdef HAVE_GFC_INTEGER_16
+    case GFC_DTYPE_DERIVED_16:
+      if (GFC_UNALIGNED_16(ret->base_addr)
+	  || GFC_UNALIGNED_16(vector->base_addr)
+	  || GFC_UNALIGNED_16(field->base_addr))
+	break;
+      else
+	{
+	  unpack1_i16 ((gfc_array_i16 *) ret, (gfc_array_i16 *) vector,
+		       mask, (gfc_array_i16 *) field);
+	  return;
+	}
+#endif
+    }
+
+  unpack_internal (ret, vector, mask, field, size);
+}
+
+
+extern void unpack1_char (gfc_array_char *, GFC_INTEGER_4,
+			  const gfc_array_char *, const gfc_array_l1 *,
+			  const gfc_array_char *, GFC_INTEGER_4,
+			  GFC_INTEGER_4);
+export_proto(unpack1_char);
+
+void
+unpack1_char (gfc_array_char *ret,
+	      GFC_INTEGER_4 ret_length __attribute__((unused)),
+	      const gfc_array_char *vector, const gfc_array_l1 *mask,
+	      const gfc_array_char *field, GFC_INTEGER_4 vector_length,
+	      GFC_INTEGER_4 field_length __attribute__((unused)))
+{
+
+  if (unlikely(compile_options.bounds_check))
+    unpack_bounds (ret, vector, mask, field);
+
+  unpack_internal (ret, vector, mask, field, vector_length);
+}
+
+
+extern void unpack1_char4 (gfc_array_char *, GFC_INTEGER_4,
+			   const gfc_array_char *, const gfc_array_l1 *,
+			   const gfc_array_char *, GFC_INTEGER_4,
+			   GFC_INTEGER_4);
+export_proto(unpack1_char4);
+
+void
+unpack1_char4 (gfc_array_char *ret,
+	       GFC_INTEGER_4 ret_length __attribute__((unused)),
+	       const gfc_array_char *vector, const gfc_array_l1 *mask,
+	       const gfc_array_char *field, GFC_INTEGER_4 vector_length,
+	       GFC_INTEGER_4 field_length __attribute__((unused)))
+{
+
+  if (unlikely(compile_options.bounds_check))
+    unpack_bounds (ret, vector, mask, field);
+
+  unpack_internal (ret, vector, mask, field,
+		   vector_length * sizeof (gfc_char4_t));
+}
+
+
+extern void unpack0 (gfc_array_char *, const gfc_array_char *,
+		     const gfc_array_l1 *, char *);
+export_proto(unpack0);
+
+void
+unpack0 (gfc_array_char *ret, const gfc_array_char *vector,
+	 const gfc_array_l1 *mask, char *field)
+{
+  gfc_array_char tmp;
+
+  index_type type_size;
+
+  if (unlikely(compile_options.bounds_check))
+    unpack_bounds (ret, vector, mask, NULL);
+
+  type_size = GFC_DTYPE_TYPE_SIZE (vector);
+
+  switch (type_size)
+    {
+    case GFC_DTYPE_LOGICAL_1:
+    case GFC_DTYPE_INTEGER_1:
+    case GFC_DTYPE_DERIVED_1:
+      unpack0_i1 ((gfc_array_i1 *) ret, (gfc_array_i1 *) vector,
+		  mask, (GFC_INTEGER_1 *) field);
+      return;
+
+    case GFC_DTYPE_LOGICAL_2:
+    case GFC_DTYPE_INTEGER_2:
+      unpack0_i2 ((gfc_array_i2 *) ret, (gfc_array_i2 *) vector,
+		  mask, (GFC_INTEGER_2 *) field);
+      return;
+
+    case GFC_DTYPE_LOGICAL_4:
+    case GFC_DTYPE_INTEGER_4:
+      unpack0_i4 ((gfc_array_i4 *) ret, (gfc_array_i4 *) vector,
+		  mask, (GFC_INTEGER_4 *) field);
+      return;
+
+    case GFC_DTYPE_LOGICAL_8:
+    case GFC_DTYPE_INTEGER_8:
+      unpack0_i8 ((gfc_array_i8 *) ret, (gfc_array_i8 *) vector,
+		  mask, (GFC_INTEGER_8 *) field);
+      return;
+
+#ifdef HAVE_GFC_INTEGER_16
+    case GFC_DTYPE_LOGICAL_16:
+    case GFC_DTYPE_INTEGER_16:
+      unpack0_i16 ((gfc_array_i16 *) ret, (gfc_array_i16 *) vector,
+		   mask, (GFC_INTEGER_16 *) field);
+      return;
+#endif
+
+    case GFC_DTYPE_REAL_4:
+      unpack0_r4 ((gfc_array_r4 *) ret, (gfc_array_r4 *) vector,
+		  mask, (GFC_REAL_4 *) field);
+      return;
+
+    case GFC_DTYPE_REAL_8:
+      unpack0_r8 ((gfc_array_r8 *) ret, (gfc_array_r8*) vector,
+		  mask, (GFC_REAL_8  *) field);
+      return;
+
+/* FIXME: This here is a hack, which will have to be removed when
+   the array descriptor is reworked.  Currently, we don't store the
+   kind value for the type, but only the size.  Because on targets with
+   __float128, we have sizeof(logn double) == sizeof(__float128),
+   we cannot discriminate here and have to fall back to the generic
+   handling (which is suboptimal).  */
+#if !defined(GFC_REAL_16_IS_FLOAT128)
+# ifdef HAVE_GFC_REAL_10
+    case GFC_DTYPE_REAL_10:
+      unpack0_r10 ((gfc_array_r10 *) ret, (gfc_array_r10 *) vector,
+		   mask, (GFC_REAL_10 *) field);
+      return;
+# endif
+
+# ifdef HAVE_GFC_REAL_16
+    case GFC_DTYPE_REAL_16:
+      unpack0_r16 ((gfc_array_r16 *) ret, (gfc_array_r16 *) vector,
+		   mask, (GFC_REAL_16 *) field);
+      return;
+# endif
+#endif
+
+    case GFC_DTYPE_COMPLEX_4:
+      unpack0_c4 ((gfc_array_c4 *) ret, (gfc_array_c4 *) vector,
+		  mask, (GFC_COMPLEX_4 *) field);
+      return;
+
+    case GFC_DTYPE_COMPLEX_8:
+      unpack0_c8 ((gfc_array_c8 *) ret, (gfc_array_c8 *) vector,
+		  mask, (GFC_COMPLEX_8 *) field);
+      return;
+
+/* FIXME: This here is a hack, which will have to be removed when
+   the array descriptor is reworked.  Currently, we don't store the
+   kind value for the type, but only the size.  Because on targets with
+   __float128, we have sizeof(logn double) == sizeof(__float128),
+   we cannot discriminate here and have to fall back to the generic
+   handling (which is suboptimal).  */
+#if !defined(GFC_REAL_16_IS_FLOAT128)
+# ifdef HAVE_GFC_COMPLEX_10
+    case GFC_DTYPE_COMPLEX_10:
+      unpack0_c10 ((gfc_array_c10 *) ret, (gfc_array_c10 *) vector,
+		   mask, (GFC_COMPLEX_10 *) field);
+      return;
+# endif
+
+# ifdef HAVE_GFC_COMPLEX_16
+    case GFC_DTYPE_COMPLEX_16:
+      unpack0_c16 ((gfc_array_c16 *) ret, (gfc_array_c16 *) vector,
+		   mask, (GFC_COMPLEX_16 *) field);
+      return;
+# endif
+#endif
+
+    case GFC_DTYPE_DERIVED_2:
+      if (GFC_UNALIGNED_2(ret->base_addr) || GFC_UNALIGNED_2(vector->base_addr)
+	  || GFC_UNALIGNED_2(field))
+	break;
+      else
+	{
+	  unpack0_i2 ((gfc_array_i2 *) ret, (gfc_array_i2 *) vector,
+		      mask, (GFC_INTEGER_2 *) field);
+	  return;
+	}
+
+    case GFC_DTYPE_DERIVED_4:
+      if (GFC_UNALIGNED_4(ret->base_addr) || GFC_UNALIGNED_4(vector->base_addr)
+	  || GFC_UNALIGNED_4(field))
+	break;
+      else
+	{
+	  unpack0_i4 ((gfc_array_i4 *) ret, (gfc_array_i4 *) vector,
+		      mask, (GFC_INTEGER_4 *) field);
+	  return;
+	}
+
+    case GFC_DTYPE_DERIVED_8:
+      if (GFC_UNALIGNED_8(ret->base_addr) || GFC_UNALIGNED_8(vector->base_addr)
+	  || GFC_UNALIGNED_8(field))
+	break;
+      else
+	{
+	  unpack0_i8 ((gfc_array_i8 *) ret, (gfc_array_i8 *) vector,
+		      mask, (GFC_INTEGER_8 *) field);
+	  return;
+	}
+
+#ifdef HAVE_GFC_INTEGER_16
+    case GFC_DTYPE_DERIVED_16:
+      if (GFC_UNALIGNED_16(ret->base_addr)
+	  || GFC_UNALIGNED_16(vector->base_addr)
+	  || GFC_UNALIGNED_16(field))
+	break;
+      else
+	{
+	  unpack0_i16 ((gfc_array_i16 *) ret, (gfc_array_i16 *) vector,
+		       mask, (GFC_INTEGER_16 *) field);
+	  return;
+	}
+#endif
+
+    }
+
+  memset (&tmp, 0, sizeof (tmp));
+  tmp.dtype = 0;
+  tmp.base_addr = field;
+  unpack_internal (ret, vector, mask, &tmp, GFC_DESCRIPTOR_SIZE (vector));
+}
+
+
+extern void unpack0_char (gfc_array_char *, GFC_INTEGER_4,
+			  const gfc_array_char *, const gfc_array_l1 *,
+			  char *, GFC_INTEGER_4, GFC_INTEGER_4);
+export_proto(unpack0_char);
+
+void
+unpack0_char (gfc_array_char *ret,
+	      GFC_INTEGER_4 ret_length __attribute__((unused)),
+	      const gfc_array_char *vector, const gfc_array_l1 *mask,
+	      char *field, GFC_INTEGER_4 vector_length,
+	      GFC_INTEGER_4 field_length __attribute__((unused)))
+{
+  gfc_array_char tmp;
+
+  if (unlikely(compile_options.bounds_check))
+    unpack_bounds (ret, vector, mask, NULL);
+
+  memset (&tmp, 0, sizeof (tmp));
+  tmp.dtype = 0;
+  tmp.base_addr = field;
+  unpack_internal (ret, vector, mask, &tmp, vector_length);
+}
+
+
+extern void unpack0_char4 (gfc_array_char *, GFC_INTEGER_4,
+			   const gfc_array_char *, const gfc_array_l1 *,
+			   char *, GFC_INTEGER_4, GFC_INTEGER_4);
+export_proto(unpack0_char4);
+
+void
+unpack0_char4 (gfc_array_char *ret,
+	       GFC_INTEGER_4 ret_length __attribute__((unused)),
+	       const gfc_array_char *vector, const gfc_array_l1 *mask,
+	       char *field, GFC_INTEGER_4 vector_length,
+	       GFC_INTEGER_4 field_length __attribute__((unused)))
+{
+  gfc_array_char tmp;
+
+  if (unlikely(compile_options.bounds_check))
+    unpack_bounds (ret, vector, mask, NULL);
+
+  memset (&tmp, 0, sizeof (tmp));
+  tmp.dtype = 0;
+  tmp.base_addr = field;
+  unpack_internal (ret, vector, mask, &tmp,
+		   vector_length * sizeof (gfc_char4_t));
+}