[GCC 4.8] Initial check-in of GCC 4.8.0

Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771

1 files changed, 270 insertions, 0 deletions

diff --git a/gcc-4.8/libgfortran/m4/spread.m4 b/gcc-4.8/libgfortran/m4/spread.m4
new file mode 100644
index 000000000..59d934764
--- /dev/null
+++ b/gcc-4.8/libgfortran/m4/spread.m4
@@ -0,0 +1,270 @@
+`/* Special implementation of the SPREAD intrinsic
+   Copyright (C) 2008-2013 Free Software Foundation, Inc.
+   Contributed by Thomas Koenig <tkoenig@gcc.gnu.org>, based on
+   spread_generic.c written 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>'
+
+include(iparm.m4)dnl
+
+`#if defined (HAVE_'rtype_name`)
+
+void
+spread_'rtype_code` ('rtype` *ret, const 'rtype` *source,
+		 const index_type along, const index_type pncopies)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride[GFC_MAX_DIMENSIONS];
+  index_type rstride0;
+  index_type rdelta = 0;
+  index_type rrank;
+  index_type rs;
+  'rtype_name` *rptr;
+  'rtype_name` * restrict dest;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  index_type srank;
+  const 'rtype_name` *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->base_addr == NULL)
+    {
+
+      size_t ub, stride;
+
+      /* 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++)
+	{
+	  stride = rs;
+	  if (n == along - 1)
+	    {
+	      ub = ncopies - 1;
+	      rdelta = rs;
+	      rs *= ncopies;
+	    }
+	  else
+	    {
+	      count[dim] = 0;
+	      extent[dim] = GFC_DESCRIPTOR_EXTENT(source,dim);
+	      sstride[dim] = GFC_DESCRIPTOR_STRIDE(source,dim);
+	      rstride[dim] = rs;
+
+	      ub = extent[dim] - 1;
+	      rs *= extent[dim];
+	      dim++;
+	    }
+	  GFC_DIMENSION_SET(ret->dim[n], 0, ub, stride);
+	}
+      ret->offset = 0;
+
+      /* xmalloc allocates a single byte for zero size.  */
+      ret->base_addr = xmalloc (rs * sizeof('rtype_name`));
+      if (rs <= 0)
+        return;
+    }
+  else
+    {
+      int zero_sized;
+
+      zero_sized = 0;
+
+      dim = 0;
+      if (GFC_DESCRIPTOR_RANK(ret) != rrank)
+	runtime_error ("rank mismatch in spread()");
+
+      if (unlikely (compile_options.bounds_check))
+	{
+	  for (n = 0; n < rrank; n++)
+	    {
+	      index_type ret_extent;
+
+	      ret_extent = GFC_DESCRIPTOR_EXTENT(ret,n);
+	      if (n == along - 1)
+		{
+		  rdelta = GFC_DESCRIPTOR_STRIDE(ret,n);
+
+		  if (ret_extent != ncopies)
+		    runtime_error("Incorrect extent in return value of SPREAD"
+				  " intrinsic in dimension %ld: is %ld,"
+				  " should be %ld", (long int) n+1,
+				  (long int) ret_extent, (long int) ncopies);
+		}
+	      else
+		{
+		  count[dim] = 0;
+		  extent[dim] = GFC_DESCRIPTOR_EXTENT(source,dim);
+		  if (ret_extent != extent[dim])
+		    runtime_error("Incorrect extent in return value of SPREAD"
+				  " intrinsic in dimension %ld: is %ld,"
+				  " should be %ld", (long int) n+1,
+				  (long int) ret_extent,
+				  (long int) extent[dim]);
+		    
+		  if (extent[dim] <= 0)
+		    zero_sized = 1;
+		  sstride[dim] = GFC_DESCRIPTOR_STRIDE(source,dim);
+		  rstride[dim] = GFC_DESCRIPTOR_STRIDE(ret,n);
+		  dim++;
+		}
+	    }
+	}
+      else
+	{
+	  for (n = 0; n < rrank; n++)
+	    {
+	      if (n == along - 1)
+		{
+		  rdelta = GFC_DESCRIPTOR_STRIDE(ret,n);
+		}
+	      else
+		{
+		  count[dim] = 0;
+		  extent[dim] = GFC_DESCRIPTOR_EXTENT(source,dim);
+		  if (extent[dim] <= 0)
+		    zero_sized = 1;
+		  sstride[dim] = GFC_DESCRIPTOR_STRIDE(source,dim);
+		  rstride[dim] = GFC_DESCRIPTOR_STRIDE(ret,n);
+		  dim++;
+		}
+	    }
+	}
+
+      if (zero_sized)
+	return;
+
+      if (sstride[0] == 0)
+	sstride[0] = 1;
+    }
+  sstride0 = sstride[0];
+  rstride0 = rstride[0];
+  rptr = ret->base_addr;
+  sptr = source->base_addr;
+
+  while (sptr)
+    {
+      /* Spread this element.  */
+      dest = rptr;
+      for (n = 0; n < ncopies; n++)
+        {
+	  *dest = *sptr;
+          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.  */
+
+void
+spread_scalar_'rtype_code` ('rtype` *ret, const 'rtype_name` *source,
+			const index_type along, const index_type pncopies)
+{
+  int n;
+  int ncopies = pncopies;
+  'rtype_name` * restrict dest;
+  index_type stride;
+
+  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->base_addr == NULL)
+    {
+      ret->base_addr = xmalloc (ncopies * sizeof ('rtype_name`));
+      ret->offset = 0;
+      GFC_DIMENSION_SET(ret->dim[0], 0, ncopies - 1, 1);
+    }
+  else
+    {
+      if (ncopies - 1 > (GFC_DESCRIPTOR_EXTENT(ret,0) - 1)
+			   / GFC_DESCRIPTOR_STRIDE(ret,0))
+	runtime_error ("dim too large in spread()");
+    }
+
+  dest = ret->base_addr;
+  stride = GFC_DESCRIPTOR_STRIDE(ret,0);
+
+  for (n = 0; n < ncopies; n++)
+    {
+      *dest = *source;
+      dest += stride;
+    }
+}
+
+#endif
+'