obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 111 insertions, 0 deletions

diff --git a/libgfortran/intrinsics/cpu_time.c b/libgfortran/intrinsics/cpu_time.c
new file mode 100644
index 000000000..619f8d252
--- /dev/null
+++ b/libgfortran/intrinsics/cpu_time.c
@@ -0,0 +1,111 @@
+/* Implementation of the CPU_TIME intrinsic.
+   Copyright (C) 2003, 2007, 2009, 2010, 2011 Free Software Foundation, Inc.
+
+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.
+
+Libgfortran 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 "time_1.h"
+
+
+static inline void __cpu_time_1 (long *, long *) ATTRIBUTE_ALWAYS_INLINE;
+
+static inline void
+__cpu_time_1 (long *sec, long *usec)
+{
+  long user_sec, user_usec, system_sec, system_usec;
+  if (gf_cputime (&user_sec, &user_usec, &system_sec, &system_usec) == 0)
+    {
+      *sec = user_sec + system_sec;
+      *usec = user_usec + system_usec;
+    }
+  else
+    {
+      *sec = -1;
+      *usec = 0;
+    }
+}
+
+
+extern void cpu_time_4 (GFC_REAL_4 *);
+iexport_proto(cpu_time_4);
+
+void cpu_time_4 (GFC_REAL_4 *time)
+{
+  long sec, usec;
+  __cpu_time_1 (&sec, &usec);
+  *time = sec + usec * GFC_REAL_4_LITERAL(1.e-6);
+}
+iexport(cpu_time_4);
+
+extern void cpu_time_8 (GFC_REAL_8 *);
+export_proto(cpu_time_8);
+
+void cpu_time_8 (GFC_REAL_8 *time)
+{
+  long sec, usec;
+  __cpu_time_1 (&sec, &usec);
+  *time = sec + usec * GFC_REAL_8_LITERAL(1.e-6);
+}
+
+#ifdef HAVE_GFC_REAL_10
+extern void cpu_time_10 (GFC_REAL_10 *);
+export_proto(cpu_time_10);
+
+void cpu_time_10 (GFC_REAL_10 *time)
+{
+  long sec, usec;
+  __cpu_time_1 (&sec, &usec);
+  *time = sec + usec * GFC_REAL_10_LITERAL(1.e-6);
+}
+#endif
+
+#ifdef HAVE_GFC_REAL_16
+extern void cpu_time_16 (GFC_REAL_16 *);
+export_proto(cpu_time_16);
+
+void cpu_time_16 (GFC_REAL_16 *time)
+{
+  long sec, usec;
+  __cpu_time_1 (&sec, &usec);
+  *time = sec + usec * GFC_REAL_16_LITERAL(1.e-6);
+}
+#endif
+
+extern void second_sub (GFC_REAL_4 *);
+export_proto(second_sub);
+
+void
+second_sub (GFC_REAL_4 *s)
+{
+  cpu_time_4 (s);
+}
+
+extern GFC_REAL_4 second (void);
+export_proto(second);
+
+GFC_REAL_4
+second (void)
+{
+  GFC_REAL_4 s;
+  cpu_time_4 (&s);
+  return s;
+}