diff src/os_cpu/solaris_sparc/vm/prefetch_solaris_sparc.inline.hpp @ 0:a61af66fc99e jdk7-b24

Initial load
author duke
date Sat, 01 Dec 2007 00:00:00 +0000
parents
children c18cbe5936b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/os_cpu/solaris_sparc/vm/prefetch_solaris_sparc.inline.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#if defined(COMPILER2) || defined(_LP64)
+
+// For Sun Studio inplementation is in solaris_sparc.il
+// For gcc inplementation is just below
+extern "C" void _Prefetch_read (void *loc, intx interval);
+extern "C" void _Prefetch_write(void *loc, intx interval);
+
+inline void Prefetch::read(void *loc, intx interval) {
+  _Prefetch_read(loc, interval);
+}
+
+inline void Prefetch::write(void *loc, intx interval) {
+  _Prefetch_write(loc, interval);
+}
+
+#ifdef _GNU_SOURCE
+extern "C" {
+  inline void _Prefetch_read (void *loc, intx interval) {
+    __asm__ volatile
+      ("prefetch [%0+%1], 0" : : "r" (loc), "r" (interval) : "memory" );
+  }
+  inline void _Prefetch_write(void *loc, intx interval) {
+    __asm__ volatile
+      ("prefetch [%0+%1], 2" : : "r" (loc), "r" (interval) : "memory" );
+  }
+}
+#endif // _GNU_SOURCE
+
+#else  // defined(COMPILER2) || defined(_LP64)
+
+inline void Prefetch::read (void *loc, intx interval) {}
+inline void Prefetch::write(void *loc, intx interval) {}
+
+#endif // defined(COMPILER2) || defined(_LP64)