1 /*
 2  * Copyright (c) 2000, 2024, 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
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25 
26 #ifndef CPU_AARCH64_C1_LIRASSEMBLER_AARCH64_HPP
27 #define CPU_AARCH64_C1_LIRASSEMBLER_AARCH64_HPP
28 
29 // ArrayCopyStub needs access to bailout
30 friend class ArrayCopyStub;
31 
32  private:
33 
34   int array_element_size(BasicType type) const;
35 
36   // helper functions which checks for overflow and sets bailout if it
37   // occurs.  Always returns a valid embeddable pointer but in the
38   // bailout case the pointer won't be to unique storage.
39   address float_constant(float f);
40   address double_constant(double d);
41 
42   address int_constant(jlong n);
43 
44   bool is_literal_address(LIR_Address* addr);
45 
46   // When we need to use something other than rscratch1 use this method.
47   Address as_Address(LIR_Address* addr, Register tmp);
48 
49   // Ensure we have a valid Address (base+offset) to a stack-slot.
50   Address stack_slot_address(int index, uint shift, Register tmp, int adjust = 0);
51 
52   // Record the type of the receiver in ReceiverTypeData
53   void type_profile_helper(Register mdo,
54                            ciMethodData *md, ciProfileData *data,
55                            Register recv, Label* update_done);
56   void add_debug_info_for_branch(address adr, CodeEmitInfo* info);
57 
58   void casw(Register addr, Register newval, Register cmpval);
59   void casl(Register addr, Register newval, Register cmpval);
60 
61   static const int max_tableswitches = 20;
62   struct tableswitch switches[max_tableswitches];
63   int tableswitch_count;
64 
65   void init() { tableswitch_count = 0; }
66 
67   void deoptimize_trap(CodeEmitInfo *info);
68 
69   enum {
70     // call stub: CompiledDirectCall::to_interp_stub_size() +
71     //            CompiledDirectCall::to_trampoline_stub_size()
72     _call_stub_size = 13 * NativeInstruction::instruction_size,
73     _exception_handler_size = DEBUG_ONLY(1*K) NOT_DEBUG(175),
74     _deopt_handler_size = 7 * NativeInstruction::instruction_size
75   };
76 
77 public:
78 
79   void store_parameter(Register r, int offset_from_esp_in_words);
80   void store_parameter(jint c,     int offset_from_esp_in_words);
81   void store_parameter(jobject c,  int offset_from_esp_in_words);
82 
83 #endif // CPU_AARCH64_C1_LIRASSEMBLER_AARCH64_HPP