src/hotspot/cpu/sparc/c1_LIRAssembler_sparc.hpp
changeset 47216 71c04702a3d5
parent 46381 020219e46c86
child 53244 9807daeb47c4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/cpu/sparc/c1_LIRAssembler_sparc.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2000, 2017, 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_LIRASSEMBLER_SPARC_HPP
+#define CPU_SPARC_VM_C1_LIRASSEMBLER_SPARC_HPP
+
+ private:
+
+  //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+  //
+  // Sparc load/store emission
+  //
+  // The sparc ld/st instructions cannot accomodate displacements > 13 bits long.
+  // The following "pseudo" sparc instructions (load/store) make it easier to use the indexed addressing mode
+  // by allowing 32 bit displacements:
+  //
+  //    When disp <= 13 bits long, a single load or store instruction is emitted with (disp + [d]).
+  //    When disp >  13 bits long, code is emitted to set the displacement into the O7 register,
+  //       and then a load or store is emitted with ([O7] + [d]).
+  //
+
+  int store(LIR_Opr from_reg, Register base, int offset, BasicType type, bool wide, bool unaligned);
+  int store(LIR_Opr from_reg, Register base, Register disp, BasicType type, bool wide);
+
+  int load(Register base, int offset, LIR_Opr to_reg, BasicType type, bool wide, bool unaligned);
+  int load(Register base, Register disp, LIR_Opr to_reg, BasicType type, bool wide);
+
+  void monitorexit(LIR_Opr obj_opr, LIR_Opr lock_opr, Register hdr, int monitor_no);
+
+  int shift_amount(BasicType t);
+
+  static bool is_single_instruction(LIR_Op* op);
+
+  // Record the type of the receiver in ReceiverTypeData
+  void type_profile_helper(Register mdo, int mdo_offset_bias,
+                           ciMethodData *md, ciProfileData *data,
+                           Register recv, Register tmp1, Label* update_done);
+  // Setup pointers to MDO, MDO slot, also compute offset bias to access the slot.
+  void setup_md_access(ciMethod* method, int bci,
+                       ciMethodData*& md, ciProfileData*& data, int& mdo_offset_bias);
+
+  enum {
+    _call_stub_size = 68,
+    _call_aot_stub_size = 0,
+    _exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(128),
+    _deopt_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(64)
+  };
+
+ public:
+  void   pack64(LIR_Opr src, LIR_Opr dst);
+  void unpack64(LIR_Opr src, LIR_Opr dst);
+
+#endif // CPU_SPARC_VM_C1_LIRASSEMBLER_SPARC_HPP