Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 259 insertions, 0 deletions

diff --git a/gcc-4.9/libgfortran/generated/pack_c8.c b/gcc-4.9/libgfortran/generated/pack_c8.c
new file mode 100644
index 000000000..f291b4676
--- /dev/null
+++ b/gcc-4.9/libgfortran/generated/pack_c8.c
@@ -0,0 +1,259 @@
+/* Specific implementation of the PACK intrinsic
+   Copyright (C) 2002-2014 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>
+
+
+#if defined (HAVE_GFC_COMPLEX_8)
+
+/* PACK is specified as follows:
+
+   13.14.80 PACK (ARRAY, MASK, [VECTOR])
+
+   Description: Pack an array into an array of rank one under the
+   control of a mask.
+
+   Class: Transformational function.
+
+   Arguments:
+      ARRAY   may be of any type. It shall not be scalar.
+      MASK    shall be of type LOGICAL. It shall be conformable with ARRAY.
+      VECTOR  (optional) shall be of the same type and type parameters
+              as ARRAY. VECTOR shall have at least as many elements as
+              there are true elements in MASK. If MASK is a scalar
+              with the value true, VECTOR shall have at least as many
+              elements as there are in ARRAY.
+
+   Result Characteristics: The result is an array of rank one with the
+   same type and type parameters as ARRAY. If VECTOR is present, the
+   result size is that of VECTOR; otherwise, the result size is the
+   number /t/ of true elements in MASK unless MASK is scalar with the
+   value true, in which case the result size is the size of ARRAY.
+
+   Result Value: Element /i/ of the result is the element of ARRAY
+   that corresponds to the /i/th true element of MASK, taking elements
+   in array element order, for /i/ = 1, 2, ..., /t/. If VECTOR is
+   present and has size /n/ > /t/, element /i/ of the result has the
+   value VECTOR(/i/), for /i/ = /t/ + 1, ..., /n/.
+
+   Examples: The nonzero elements of an array M with the value
+   | 0 0 0 |
+   | 9 0 0 | may be "gathered" by the function PACK. The result of
+   | 0 0 7 |
+   PACK (M, MASK = M.NE.0) is [9,7] and the result of PACK (M, M.NE.0,
+   VECTOR = (/ 2,4,6,8,10,12 /)) is [9,7,6,8,10,12].
+
+There are two variants of the PACK intrinsic: one, where MASK is
+array valued, and the other one where MASK is scalar.  */
+
+void
+pack_c8 (gfc_array_c8 *ret, const gfc_array_c8 *array,
+	       const gfc_array_l1 *mask, const gfc_array_c8 *vector)
+{
+  /* r.* indicates the return array.  */
+  index_type rstride0;
+  GFC_COMPLEX_8 * restrict rptr;
+  /* s.* indicates the source array.  */
+  index_type sstride[GFC_MAX_DIMENSIONS];
+  index_type sstride0;
+  const GFC_COMPLEX_8 *sptr;
+  /* 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];
+  int zero_sized;
+  index_type n;
+  index_type dim;
+  index_type nelem;
+  index_type total;
+  int mask_kind;
+
+  dim = GFC_DESCRIPTOR_RANK (array);
+
+  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
+      )
+    {
+      /*  Do not 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");
+
+  zero_sized = 0;
+  for (n = 0; n < dim; n++)
+    {
+      count[n] = 0;
+      extent[n] = GFC_DESCRIPTOR_EXTENT(array,n);
+      if (extent[n] <= 0)
+       zero_sized = 1;
+      sstride[n] = GFC_DESCRIPTOR_STRIDE(array,n);
+      mstride[n] = GFC_DESCRIPTOR_STRIDE_BYTES(mask,n);
+    }
+  if (sstride[0] == 0)
+    sstride[0] = 1;
+  if (mstride[0] == 0)
+    mstride[0] = mask_kind;
+
+  if (zero_sized)
+    sptr = NULL;
+  else
+    sptr = array->base_addr;
+
+  if (ret->base_addr == NULL || unlikely (compile_options.bounds_check))
+    {
+      /* Count the elements, either for allocating memory or
+	 for bounds checking.  */
+
+      if (vector != NULL)
+	{
+	  /* The return array will have as many
+	     elements as there are in VECTOR.  */
+	  total = GFC_DESCRIPTOR_EXTENT(vector,0);
+	  if (total < 0)
+	    {
+	      total = 0;
+	      vector = NULL;
+	    }
+	}
+      else
+        {
+      	  /* We have to count the true elements in MASK.  */
+	  total = count_0 (mask);
+        }
+
+      if (ret->base_addr == NULL)
+	{
+	  /* Setup the array descriptor.  */
+	  GFC_DIMENSION_SET(ret->dim[0], 0, total-1, 1);
+
+	  ret->offset = 0;
+
+	  /* xmalloc allocates a single byte for zero size.  */
+	  ret->base_addr = xmalloc (sizeof (GFC_COMPLEX_8) * total);
+
+	  if (total == 0)
+	    return;
+	}
+      else 
+	{
+	  /* We come here because of range checking.  */
+	  index_type ret_extent;
+
+	  ret_extent = GFC_DESCRIPTOR_EXTENT(ret,0);
+	  if (total != ret_extent)
+	    runtime_error ("Incorrect extent in return value of PACK intrinsic;"
+			   " is %ld, should be %ld", (long int) total,
+			   (long int) ret_extent);
+	}
+    }
+
+  rstride0 = GFC_DESCRIPTOR_STRIDE(ret,0);
+  if (rstride0 == 0)
+    rstride0 = 1;
+  sstride0 = sstride[0];
+  mstride0 = mstride[0];
+  rptr = ret->base_addr;
+
+  while (sptr && mptr)
+    {
+      /* Test this element.  */
+      if (*mptr)
+        {
+          /* Add it.  */
+	  *rptr = *sptr;
+          rptr += rstride0;
+        }
+      /* Advance to the next element.  */
+      sptr += sstride0;
+      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.  */
+          sptr -= sstride[n] * extent[n];
+          mptr -= mstride[n] * extent[n];
+          n++;
+          if (n >= dim)
+            {
+              /* Break out of the loop.  */
+              sptr = NULL;
+              break;
+            }
+          else
+            {
+              count[n]++;
+              sptr += sstride[n];
+              mptr += mstride[n];
+            }
+        }
+    }
+
+  /* Add any remaining elements from VECTOR.  */
+  if (vector)
+    {
+      n = GFC_DESCRIPTOR_EXTENT(vector,0);
+      nelem = ((rptr - ret->base_addr) / rstride0);
+      if (n > nelem)
+        {
+          sstride0 = GFC_DESCRIPTOR_STRIDE(vector,0);
+          if (sstride0 == 0)
+            sstride0 = 1;
+
+          sptr = vector->base_addr + sstride0 * nelem;
+          n -= nelem;
+          while (n--)
+            {
+	      *rptr = *sptr;
+              rptr += rstride0;
+              sptr += sstride0;
+            }
+        }
+    }
+}
+
+#endif
+