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, 2022, 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 casw(Register addr, Register newval, Register cmpval);
62 void caswu(Register addr, Register newval, Register cmpval);
63 void casl(Register addr, Register newval, Register cmpval);
64
65 void poll_for_safepoint(relocInfo::relocType rtype, CodeEmitInfo* info = NULL);
66
67 void deoptimize_trap(CodeEmitInfo *info);
68
69 enum {
70 // See emit_static_call_stub for detail
71 // CompiledStaticCall::to_interp_stub_size() (14) + CompiledStaticCall::to_trampoline_stub_size() (1 + 3 + address)
72 _call_stub_size = 14 * NativeInstruction::instruction_size +
73 (NativeInstruction::instruction_size + NativeCallTrampolineStub::instruction_size),
74 // See emit_exception_handler for detail
75 // verify_not_null_oop + far_call + should_not_reach_here + invalidate_registers(DEBUG_ONLY)
76 _exception_handler_size = DEBUG_ONLY(584) NOT_DEBUG(548), // or smaller
77 // See emit_deopt_handler for detail
78 // auipc (1) + far_jump (6 or 2)
79 _deopt_handler_size = 1 * NativeInstruction::instruction_size +
80 6 * NativeInstruction::instruction_size // or smaller
81 };
82
83 void check_conflict(ciKlass* exact_klass, intptr_t current_klass, Register tmp,
84 Label &next, Label &none, Address mdo_addr);
85 void check_no_conflict(ciKlass* exact_klass, intptr_t current_klass, Register tmp, Address mdo_addr, Label &next);
86
87 void check_exact_klass(Register tmp, ciKlass* exact_klass);
88
89 void check_null(Register tmp, Label &update, intptr_t current_klass, Address mdo_addr, bool do_update, Label &next);
90
91 void (MacroAssembler::*add)(Register prev, RegisterOrConstant incr, Register addr);
92 void (MacroAssembler::*xchg)(Register prev, Register newv, Register addr);
93
94 void get_op(BasicType type);
95
96 // emit_typecheck_helper sub functions
97 void data_check(LIR_OpTypeCheck *op, ciMethodData **md, ciProfileData **data);
98 void typecheck_helper_slowcheck(ciKlass* k, Register obj, Register Rtmp1,
99 Register k_RInfo, Register klass_RInfo,
100 Label* failure_target, Label* success_target);
101 void profile_object(ciMethodData* md, ciProfileData* data, Register obj,
102 Register klass_RInfo, Label* obj_is_null);
103 void typecheck_loaded(LIR_OpTypeCheck* op, ciKlass* k, Register k_RInfo);
104
105 // emit_opTypeCheck sub functions
106 void typecheck_lir_store(LIR_OpTypeCheck* op, bool should_profile);
107
108 void type_profile(Register obj, ciMethodData* md, Register klass_RInfo, Register k_RInfo,
109 ciProfileData* data, Label* success, Label* failure,
110 Label& profile_cast_success, Label& profile_cast_failure);
111
112 void lir_store_slowcheck(Register k_RInfo, Register klass_RInfo, Register Rtmp1,
113 Label* success_target, Label* failure_target);
114
115 void const2reg_helper(LIR_Opr src);
116
117 void emit_branch(LIR_Condition cmp_flag, LIR_Opr cmp1, LIR_Opr cmp2, Label& label, bool is_far, bool is_unordered);
118
119 void logic_op_reg32(Register dst, Register left, Register right, LIR_Code code);
120 void logic_op_reg(Register dst, Register left, Register right, LIR_Code code);
121 void logic_op_imm(Register dst, Register left, int right, LIR_Code code);
122
123 public:
124
125 void emit_cmove(LIR_Op4* op);
126
127 void store_parameter(Register r, int offset_from_rsp_in_words);
128 void store_parameter(jint c, int offset_from_rsp_in_words);
129
130 #endif // CPU_RISCV_C1_LIRASSEMBLER_RISCV_HPP