src/hotspot/cpu/sparc/c1_MacroAssembler_sparc.hpp
changeset 47216 71c04702a3d5
parent 35548 8d3afe96ffea
child 49906 4bb58f644e4e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/sparc/c1_MacroAssembler_sparc.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 1999, 2015, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP
+#define CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP
+
+  void pd_init() { /* nothing to do */ }
+
+ public:
+   void try_allocate(
+    Register obj,                      // result: pointer to object after successful allocation
+    Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
+    int      con_size_in_bytes,        // object size in bytes if   known at compile time
+    Register t1,                       // temp register
+    Register t2,                       // temp register
+    Label&   slow_case                 // continuation point if fast allocation fails
+  );
+
+  void initialize_header(Register obj, Register klass, Register len, Register t1, Register t2);
+  void initialize_body(Register base, Register index);
+
+  // locking/unlocking
+  void lock_object  (Register Rmark, Register Roop, Register Rbox, Register Rscratch, Label& slow_case);
+  void unlock_object(Register Rmark, Register Roop, Register Rbox,                    Label& slow_case);
+
+  void initialize_object(
+    Register obj,                      // result: pointer to object after successful allocation
+    Register klass,                    // object klass
+    Register var_size_in_bytes,        // object size in bytes if unknown at compile time; invalid otherwise
+    int      con_size_in_bytes,        // object size in bytes if   known at compile time
+    Register t1,                       // temp register
+    Register t2,                       // temp register
+    bool is_tlab_allocated             // the object was allocated in a TLAB; relevant for the implementation of ZeroTLAB
+  );
+
+  // allocation of fixed-size objects
+  // (can also be used to allocate fixed-size arrays, by setting
+  // hdr_size correctly and storing the array length afterwards)
+  void allocate_object(
+    Register obj,                      // result: pointer to object after successful allocation
+    Register t1,                       // temp register
+    Register t2,                       // temp register
+    Register t3,                       // temp register
+    int      hdr_size,                 // object header size in words
+    int      obj_size,                 // object size in words
+    Register klass,                    // object klass
+    Label&   slow_case                 // continuation point if fast allocation fails
+  );
+
+  enum {
+    max_array_allocation_length = 0x01000000 // sparc friendly value, requires sethi only
+  };
+
+  // allocation of arrays
+  void allocate_array(
+    Register obj,                      // result: pointer to array after successful allocation
+    Register len,                      // array length
+    Register t1,                       // temp register
+    Register t2,                       // temp register
+    Register t3,                       // temp register
+    int      hdr_size,                 // object header size in words
+    int      elt_size,                 // element size in bytes
+    Register klass,                    // object klass
+    Label&   slow_case                 // continuation point if fast allocation fails
+  );
+
+  // invalidates registers in this window
+  void invalidate_registers(bool iregisters, bool lregisters, bool oregisters,
+                            Register preserve1 = noreg, Register preserve2 = noreg);
+
+  // This platform only uses signal-based null checks. The Label is not needed.
+  void null_check(Register r, Label *Lnull = NULL) { MacroAssembler::null_check(r); }
+
+#endif // CPU_SPARC_VM_C1_MACROASSEMBLER_SPARC_HPP