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hotspot/src/cpu/sparc/vm/vmreg_sparc.inline.hpp

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+/*
+ * Copyright 2006-2007 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.
+ *
+ */
+
+inline VMReg RegisterImpl::as_VMReg() {
+  if( this==noreg ) return VMRegImpl::Bad();
+  return VMRegImpl::as_VMReg(encoding() << 1 );
+}
+
+inline VMReg FloatRegisterImpl::as_VMReg() { return VMRegImpl::as_VMReg( ConcreteRegisterImpl::max_gpr + encoding() ); }
+
+
+inline bool VMRegImpl::is_Register() { return value() >= 0 && value() < ConcreteRegisterImpl::max_gpr; }
+inline bool VMRegImpl::is_FloatRegister() { return value() >= ConcreteRegisterImpl::max_gpr &&
+                                                   value() < ConcreteRegisterImpl::max_fpr; }
+inline Register VMRegImpl::as_Register() {
+
+  assert( is_Register() && is_even(value()), "even-aligned GPR name" );
+  // Yuk
+  return ::as_Register(value()>>1);
+}
+
+inline FloatRegister VMRegImpl::as_FloatRegister() {
+  assert( is_FloatRegister(), "must be" );
+  // Yuk
+  return ::as_FloatRegister( value() - ConcreteRegisterImpl::max_gpr );
+}
+
+inline   bool VMRegImpl::is_concrete() {
+  assert(is_reg(), "must be");
+  int v = value();
+  if ( v  <  ConcreteRegisterImpl::max_gpr ) {
+    return is_even(v);
+  }
+  // F0..F31
+  if ( v <= ConcreteRegisterImpl::max_gpr + 31) return true;
+  if ( v <  ConcreteRegisterImpl::max_fpr) {
+    return is_even(v);
+  }
+  assert(false, "what register?");
+  return false;
+}