Check in gcc sources for prebuilt toolchains in Eclair.

1 files changed, 279 insertions, 0 deletions

diff --git a/gcc-4.2.1/libgfortran/intrinsics/spread_generic.c b/gcc-4.2.1/libgfortran/intrinsics/spread_generic.c
new file mode 100644
index 000000000..9ea6b12ef
--- /dev/null
+++ b/gcc-4.2.1/libgfortran/intrinsics/spread_generic.c
@@ -0,0 +1,279 @@
+/* Generic implementation of the SPREAD intrinsic
+   Copyright 2002, 2005, 2006 Free Software Foundation, Inc.
+   Contributed by Paul Brook <paul@nowt.org>
+
+This file is part of the GNU Fortran 95 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 2 of the License, or (at your option) any later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+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.
+
+You should have received a copy of the GNU General Public
+License along with libgfortran; see the file COPYING.  If not,
+write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#include "config.h"
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+#include "libgfortran.h"
+
+static void
+spread_internal (gfc_array_char *ret, const gfc_array_char *source,
+		 const index_type *along, const index_type *pncopies,
+		 index_type size)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type rdelta = 0;
+  index_type rrank;
+  index_type rs;
+  char *rptr;
+  char *dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type srank;
+  const char *sptr;
+
+  index_type count[GFC_MAX_DIMENSIONS];
+  index_type extent[GFC_MAX_DIMENSIONS];
+  index_type n;
+  index_type dim;
+  index_type ncopies;
+
+  srank = GFC_DESCRIPTOR_RANK(source);
+
+  rrank = srank + 1;
+  if (rrank > GFC_MAX_DIMENSIONS)
+    runtime_error ("return rank too large in spread()");
+
+  if (*along > rrank)
+      runtime_error ("dim outside of rank in spread()");
+
+  ncopies = *pncopies;
+
+  if (ret->data == NULL)
+    {
+      /* The front end has signalled that we need to populate the
+	 return array descriptor.  */
+      ret->dtype = (source->dtype & ~GFC_DTYPE_RANK_MASK) | rrank;
+      dim = 0;
+      rs = 1;
+      for (n = 0; n < rrank; n++)
+	{
+	  ret->dim[n].stride = rs;
+	  ret->dim[n].lbound = 0;
+	  if (n == *along - 1)
+	    {
+	      ret->dim[n].ubound = ncopies - 1;
+	      rdelta = rs * size;
+	      rs *= ncopies;
+	    }
+	  else
+	    {
+	      count[dim] = 0;
+	      extent[dim] = source->dim[dim].ubound + 1
+		- source->dim[dim].lbound;
+	      sstride[dim] = source->dim[dim].stride * size;
+	      rstride[dim] = rs * size;
+
+	      ret->dim[n].ubound = extent[dim]-1;
+	      rs *= extent[dim];
+	      dim++;
+	    }
+	}
+      ret->offset = 0;
+      if (rs > 0)
+        ret->data = internal_malloc_size (rs * size);
+      else
+	{
+	  ret->data = internal_malloc_size (1);
+	  return;
+	}
+    }
+  else
+    {
+      dim = 0;
+      if (GFC_DESCRIPTOR_RANK(ret) != rrank)
+	runtime_error ("rank mismatch in spread()");
+
+      for (n = 0; n < rrank; n++)
+	{
+	  if (n == *along - 1)
+	    {
+	      rdelta = ret->dim[n].stride * size;
+	    }
+	  else
+	    {
+	      count[dim] = 0;
+	      extent[dim] = source->dim[dim].ubound + 1
+		- source->dim[dim].lbound;
+	      sstride[dim] = source->dim[dim].stride * size;
+	      rstride[dim] = ret->dim[n].stride * size;
+	      dim++;
+	    }
+	}
+      if (sstride[0] == 0)
+	sstride[0] = size;
+    }
+  sstride0 = sstride[0];
+  rstride0 = rstride[0];
+  rptr = ret->data;
+  sptr = source->data;
+
+  while (sptr)
+    {
+      /* Spread this element.  */
+      dest = rptr;
+      for (n = 0; n < ncopies; n++)
+        {
+          memcpy (dest, sptr, size);
+          dest += rdelta;
+        }
+      /* Advance to the next element.  */
+      sptr += sstride0;
+      rptr += rstride0;
+      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.  */
+          sptr -= sstride[n] * extent[n];
+          rptr -= rstride[n] * extent[n];
+          n++;
+          if (n >= srank)
+            {
+              /* Break out of the loop.  */
+              sptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              sptr += sstride[n];
+              rptr += rstride[n];
+            }
+        }
+    }
+}
+
+/* This version of spread_internal treats the special case of a scalar
+   source.  This is much simpler than the more general case above.  */
+
+static void
+spread_internal_scalar (gfc_array_char *ret, const char *source,
+			const index_type *along, const index_type *pncopies,
+			index_type size)
+{
+  int n;
+  int ncopies = *pncopies;
+  char * dest;
+
+  if (GFC_DESCRIPTOR_RANK (ret) != 1)
+    runtime_error ("incorrect destination rank in spread()");
+
+  if (*along > 1)
+    runtime_error ("dim outside of rank in spread()");
+
+  if (ret->data == NULL)
+    {
+      ret->data = internal_malloc_size (ncopies * size);
+      ret->offset = 0;
+      ret->dim[0].stride = 1;
+      ret->dim[0].lbound = 0;
+      ret->dim[0].ubound = ncopies - 1;
+    }
+  else
+    {
+      if (ncopies - 1 > (ret->dim[0].ubound - ret->dim[0].lbound)
+			   / ret->dim[0].stride)
+	runtime_error ("dim too large in spread()");
+    }
+
+  for (n = 0; n < ncopies; n++)
+    {
+      dest = (char*)(ret->data + n*size*ret->dim[0].stride);
+      memcpy (dest , source, size);
+    }
+}
+
+extern void spread (gfc_array_char *, const gfc_array_char *,
+		    const index_type *, const index_type *);
+export_proto(spread);
+
+void
+spread (gfc_array_char *ret, const gfc_array_char *source,
+	const index_type *along, const index_type *pncopies)
+{
+  spread_internal (ret, source, along, pncopies, GFC_DESCRIPTOR_SIZE (source));
+}
+
+extern void spread_char (gfc_array_char *, GFC_INTEGER_4,
+			 const gfc_array_char *, const index_type *,
+			 const index_type *, GFC_INTEGER_4);
+export_proto(spread_char);
+
+void
+spread_char (gfc_array_char *ret,
+	     GFC_INTEGER_4 ret_length __attribute__((unused)),
+	     const gfc_array_char *source, const index_type *along,
+	     const index_type *pncopies, GFC_INTEGER_4 source_length)
+{
+  spread_internal (ret, source, along, pncopies, source_length);
+}
+
+/* The following are the prototypes for the versions of spread with a
+   scalar source.  */
+
+extern void spread_scalar (gfc_array_char *, const char *,
+			   const index_type *, const index_type *);
+export_proto(spread_scalar);
+
+void
+spread_scalar (gfc_array_char *ret, const char *source,
+	       const index_type *along, const index_type *pncopies)
+{
+  if (!ret->dtype)
+    runtime_error ("return array missing descriptor in spread()");
+  spread_internal_scalar (ret, source, along, pncopies, GFC_DESCRIPTOR_SIZE (ret));
+}
+
+
+extern void spread_char_scalar (gfc_array_char *, GFC_INTEGER_4,
+				const char *, const index_type *,
+				const index_type *, GFC_INTEGER_4);
+export_proto(spread_char_scalar);
+
+void
+spread_char_scalar (gfc_array_char *ret,
+		    GFC_INTEGER_4 ret_length __attribute__((unused)),
+		    const char *source, const index_type *along,
+		    const index_type *pncopies, GFC_INTEGER_4 source_length)
+{
+  if (!ret->dtype)
+    runtime_error ("return array missing descriptor in spread()");
+  spread_internal_scalar (ret, source, along, pncopies, source_length);
+}
+