Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 190 insertions, 0 deletions

diff --git a/gcc-4.9/libgfortran/caf/single.c b/gcc-4.9/libgfortran/caf/single.c
new file mode 100644
index 000000000..551b9aa78
--- /dev/null
+++ b/gcc-4.9/libgfortran/caf/single.c
@@ -0,0 +1,190 @@
+/* Single-image implementation of GNU Fortran Coarray Library
+   Copyright (C) 2011-2014 Free Software Foundation, Inc.
+   Contributed by Tobias Burnus <burnus@net-b.de>
+
+This file is part of the GNU Fortran Coarray Runtime Library (libcaf).
+
+Libcaf 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, or (at your option)
+any later version.
+
+Libcaf 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 "libcaf.h"
+#include <stdio.h>  /* For fputs and fprintf.  */
+#include <stdlib.h> /* For exit and malloc.  */
+#include <string.h> /* For memcpy and memset.  */
+#include <stdarg.h> /* For variadic arguments.  */
+
+/* Define GFC_CAF_CHECK to enable run-time checking.  */
+/* #define GFC_CAF_CHECK  1  */
+
+/* Single-image implementation of the CAF library.
+   Note: For performance reasons -fcoarry=single should be used
+   rather than this library.  */
+
+/* Global variables.  */
+caf_static_t *caf_static_list = NULL;
+
+
+/* Keep in sync with mpi.c.  */
+static void
+caf_runtime_error (const char *message, ...)
+{
+  va_list ap;
+  fprintf (stderr, "Fortran runtime error: ");
+  va_start (ap, message);
+  vfprintf (stderr, message, ap);
+  va_end (ap);
+  fprintf (stderr, "\n");
+
+  /* FIXME: Shutdown the Fortran RTL to flush the buffer.  PR 43849.  */
+  exit (EXIT_FAILURE);
+}
+
+void
+_gfortran_caf_init (int *argc __attribute__ ((unused)),
+		    char ***argv __attribute__ ((unused)),
+		    int *this_image, int *num_images)
+{
+  *this_image = 1;
+  *num_images = 1;
+}
+
+
+void
+_gfortran_caf_finalize (void)
+{
+  while (caf_static_list != NULL)
+    {
+      caf_static_t *tmp = caf_static_list->prev;
+      free (caf_static_list->token[0]);
+      free (caf_static_list->token);
+      free (caf_static_list);
+      caf_static_list = tmp;
+    }
+}
+
+
+void *
+_gfortran_caf_register (ptrdiff_t size, caf_register_t type, void ***token,
+			int *stat, char *errmsg, int errmsg_len)
+{
+  void *local;
+
+  local = malloc (size);
+  *token = malloc (sizeof (void*) * 1);
+  (*token)[0] = local;
+
+  if (unlikely (local == NULL || token == NULL))
+    {
+      const char msg[] = "Failed to allocate coarray";
+      if (stat)
+	{
+	  *stat = 1;
+	  if (errmsg_len > 0)
+	    {
+	      int len = ((int) sizeof (msg) > errmsg_len) ? errmsg_len
+							  : (int) sizeof (msg);
+	      memcpy (errmsg, msg, len);
+	      if (errmsg_len > len)
+		memset (&errmsg[len], ' ', errmsg_len-len);
+	    }
+	  return NULL;
+	}
+      else
+	  caf_runtime_error (msg);
+    }
+
+  if (stat)
+    *stat = 0;
+
+  if (type == CAF_REGTYPE_COARRAY_STATIC)
+    {
+      caf_static_t *tmp = malloc (sizeof (caf_static_t));
+      tmp->prev  = caf_static_list;
+      tmp->token = *token;
+      caf_static_list = tmp;
+    }
+  return local;
+}
+
+
+void
+_gfortran_caf_deregister (void ***token, int *stat,
+			  char *errmsg __attribute__ ((unused)),
+			  int errmsg_len __attribute__ ((unused)))
+{
+  free ((*token)[0]);
+  free (*token);
+
+  if (stat)
+    *stat = 0;
+}
+
+
+void
+_gfortran_caf_sync_all (int *stat,
+			char *errmsg __attribute__ ((unused)),
+			int errmsg_len __attribute__ ((unused)))
+{
+  if (stat)
+    *stat = 0;
+}
+
+
+void
+_gfortran_caf_sync_images (int count __attribute__ ((unused)),
+			   int images[] __attribute__ ((unused)),
+			   int *stat,
+			   char *errmsg __attribute__ ((unused)),
+			   int errmsg_len __attribute__ ((unused)))
+{
+#ifdef GFC_CAF_CHECK
+  int i;
+
+  for (i = 0; i < count; i++)
+    if (images[i] != 1)
+      {
+	fprintf (stderr, "COARRAY ERROR: Invalid image index %d to SYNC "
+		 "IMAGES", images[i]);
+	exit (EXIT_FAILURE);
+      }
+#endif
+
+  if (stat)
+    *stat = 0;
+}
+
+
+void
+_gfortran_caf_error_stop_str (const char *string, int32_t len)
+{
+  fputs ("ERROR STOP ", stderr);
+  while (len--)
+    fputc (*(string++), stderr);
+  fputs ("\n", stderr);
+
+  exit (1);
+}
+
+
+void
+_gfortran_caf_error_stop (int32_t error)
+{
+  fprintf (stderr, "ERROR STOP %d\n", error);
+  exit (error);
+}