1 /*
2 * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2014, Red Hat Inc. All rights reserved.
4 * Copyright (c) 2020, 2021, Huawei Technologies Co., Ltd. All rights reserved.
5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 *
7 * This code is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 only, as
9 * published by the Free Software Foundation.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 *
25 */
26
27 #ifndef CPU_RISCV_C1_LIRASSEMBLER_RISCV_HPP
28 #define CPU_RISCV_C1_LIRASSEMBLER_RISCV_HPP
29
30 // ArrayCopyStub needs access to bailout
31 friend class ArrayCopyStub;
32
33 private:
34
35 #include "c1_LIRAssembler_arith_riscv.hpp"
36 #include "c1_LIRAssembler_arraycopy_riscv.hpp"
37
38 int array_element_size(BasicType type) const;
39
40 static Register as_reg(LIR_Opr op) {
41 return op->is_double_cpu() ? op->as_register_lo() : op->as_register();
42 }
43
44 Address as_Address(LIR_Address* addr, Register tmp);
45
46 // helper functions which checks for overflow and sets bailout if it
47 // occurs. Always returns a valid embeddable pointer but in the
48 // bailout case the pointer won't be to unique storage.
49 address float_constant(float f);
50 address double_constant(double d);
51 address int_constant(jlong n);
52
53 // Ensure we have a valid Address (base + offset) to a stack-slot.
54 Address stack_slot_address(int index, uint shift, int adjust = 0);
55
56 // Record the type of the receiver in ReceiverTypeData
57 void type_profile_helper(Register mdo,
58 ciMethodData *md, ciProfileData *data,
59 Register recv, Label* update_done);
60
61 void add_debug_info_for_branch(address adr, CodeEmitInfo* info);
62
63 void casw(Register addr, Register newval, Register cmpval);
64 void caswu(Register addr, Register newval, Register cmpval);
65 void casl(Register addr, Register newval, Register cmpval);
66
67 void poll_for_safepoint(relocInfo::relocType rtype, CodeEmitInfo* info = NULL);
68
69 void deoptimize_trap(CodeEmitInfo *info);
70
71 enum
72 {
73 // see emit_static_call_stub for detail:
74 // CompiledStaticCall::to_interp_stub_size() (14) + CompiledStaticCall::to_trampoline_stub_size() (1 + 3 + address)
75 _call_stub_size = 14 * NativeInstruction::instruction_size +
76 (NativeInstruction::instruction_size + NativeCallTrampolineStub::instruction_size),
77 // see emit_exception_handler for detail:
78 // verify_not_null_oop + far_call + should_not_reach_here + invalidate_registers(DEBUG_ONLY)
79 _exception_handler_size = DEBUG_ONLY(584) NOT_DEBUG(548), // or smaller
80 // see emit_deopt_handler for detail
81 // auipc (1) + far_jump (6 or 2)
82 _deopt_handler_size = 1 * NativeInstruction::instruction_size +
83 6 * NativeInstruction::instruction_size // or smaller
84 };
85
86 void check_conflict(ciKlass* exact_klass, intptr_t current_klass, Register tmp,
87 Label &next, Label &none, Address mdo_addr);
88 void check_no_conflict(ciKlass* exact_klass, intptr_t current_klass, Register tmp, Address mdo_addr, Label &next);
89
90 void check_exact_klass(Register tmp, ciKlass* exact_klass);
91
92 void check_null(Register tmp, Label &update, intptr_t current_klass, Address mdo_addr, bool do_update, Label &next);
93
94 void (MacroAssembler::*add)(Register prev, RegisterOrConstant incr, Register addr);
95 void (MacroAssembler::*xchg)(Register prev, Register newv, Register addr);
96
97 void get_op(BasicType type);
98
99 // emit_typecheck_helper sub functions
100 void data_check(LIR_OpTypeCheck *op, ciMethodData **md, ciProfileData **data);
101 void typecheck_helper_slowcheck(ciKlass* k, Register obj, Register Rtmp1,
102 Register k_RInfo, Register klass_RInfo,
103 Label* failure_target, Label* success_target);
104 void profile_object(ciMethodData* md, ciProfileData* data, Register obj,
105 Register klass_RInfo, Label* obj_is_null);
106 void typecheck_loaded(LIR_OpTypeCheck* op, ciKlass* k, Register k_RInfo);
107
108 // emit_opTypeCheck sub functions
109 void typecheck_lir_store(LIR_OpTypeCheck* op, bool should_profile);
110
111 void type_profile(Register obj, ciMethodData* md, Register klass_RInfo, Register k_RInfo,
112 ciProfileData* data, Label* success, Label* failure,
113 Label& profile_cast_success, Label& profile_cast_failure);
114
115 void lir_store_slowcheck(Register k_RInfo, Register klass_RInfo, Register Rtmp1,
116 Label* success_target, Label* failure_target);
117
118 void const2reg_helper(LIR_Opr src);
119
120 void emit_branch(LIR_Condition cmp_flag, LIR_Opr cmp1, LIR_Opr cmp2, Label& label, bool is_far, bool is_unordered);
121
122 void logic_op_reg32(Register dst, Register left, Register right, LIR_Code code);
123 void logic_op_reg(Register dst, Register left, Register right, LIR_Code code);
124 void logic_op_imm(Register dst, Register left, int right, LIR_Code code);
125
126 public:
127
128 void emit_cmove(LIR_Op4* op);
129
130 void store_parameter(Register r, int offset_from_rsp_in_words);
131 void store_parameter(jint c, int offset_from_rsp_in_words);
132
133 #endif // CPU_RISCV_C1_LIRASSEMBLER_RISCV_HPP