1 /*
   2  * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_X86_VM_C1_LIRASSEMBLER_X86_HPP
  27 #define CPU_X86_VM_C1_LIRASSEMBLER_X86_HPP
  28 
  29  private:
  30 
  31   int array_element_size(BasicType type) const;
  32 
  33   void arith_fpu_implementation(LIR_Code code, int left_index, int right_index, int dest_index, bool pop_fpu_stack);
  34 
  35   // helper functions which checks for overflow and sets bailout if it
  36   // occurs.  Always returns a valid embeddable pointer but in the
  37   // bailout case the pointer won't be to unique storage.
  38   address float_constant(float f);
  39   address double_constant(double d);
  40 
  41   address int_constant(jlong n);
  42 
  43   bool is_literal_address(LIR_Address* addr);
  44 
  45   // When we need to use something other than rscratch1 use this
  46   // method.
  47   Address as_Address(LIR_Address* addr, Register tmp);
  48 
  49   // Record the type of the receiver in ReceiverTypeData
  50   void type_profile_helper(Register mdo,
  51                            ciMethodData *md, ciProfileData *data,
  52                            Register recv, Label* update_done);
  53   void add_debug_info_for_branch(address adr, CodeEmitInfo* info);
  54 
  55   void casw(Register addr, Register newval, Register cmpval);
  56   void casl(Register addr, Register newval, Register cmpval);
  57 
  58   void poll_for_safepoint(relocInfo::relocType rtype, CodeEmitInfo* info = NULL);
  59 
  60   static const int max_tableswitches = 20;
  61   struct tableswitch switches[max_tableswitches];
  62   int tableswitch_count;
  63 
  64   void init() { tableswitch_count = 0; }
  65 
  66   void deoptimize_trap(CodeEmitInfo *info);
  67 
  68 public:
  69 
  70   void store_parameter(Register r, int offset_from_esp_in_words);
  71   void store_parameter(jint c,     int offset_from_esp_in_words);
  72   void store_parameter(jobject c,  int offset_from_esp_in_words);
  73 
  74 enum { call_stub_size = 12 * NativeInstruction::instruction_size,
  75        exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(175),
  76        deopt_handler_size = 7 * NativeInstruction::instruction_size };
  77 
  78 #endif // CPU_X86_VM_C1_LIRASSEMBLER_X86_HPP