Mercurial > hg > graal-jvmci-8
annotate src/share/vm/interpreter/abstractInterpreter.hpp @ 24234:ea6f94ab283b default tip
Added tag jvmci-0.36 for changeset 8128b98d4736
author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
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date | Mon, 18 Sep 2017 18:49:45 +0200 |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP |
26 #define SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP | |
27 | |
28 #include "code/stubs.hpp" | |
29 #include "interpreter/bytecodes.hpp" | |
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30 #include "runtime/thread.inline.hpp" |
1972 | 31 #include "runtime/vmThread.hpp" |
32 #include "utilities/top.hpp" | |
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33 #if defined INTERP_MASM_MD_HPP |
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34 # include INTERP_MASM_MD_HPP |
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35 #elif defined TARGET_ARCH_x86 |
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36 # include "interp_masm_x86.hpp" |
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37 #elif defined TARGET_ARCH_MODEL_sparc |
1972 | 38 # include "interp_masm_sparc.hpp" |
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39 #elif defined TARGET_ARCH_MODEL_zero |
1972 | 40 # include "interp_masm_zero.hpp" |
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41 #elif defined TARGET_ARCH_MODEL_ppc_64 |
14391 | 42 # include "interp_masm_ppc_64.hpp" |
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43 #endif |
1972 | 44 |
605 | 45 // This file contains the platform-independent parts |
0 | 46 // of the abstract interpreter and the abstract interpreter generator. |
47 | |
48 // Organization of the interpreter(s). There exists two different interpreters in hotpot | |
49 // an assembly language version (aka template interpreter) and a high level language version | |
50 // (aka c++ interpreter). Th division of labor is as follows: | |
51 | |
52 // Template Interpreter C++ Interpreter Functionality | |
53 // | |
54 // templateTable* bytecodeInterpreter* actual interpretation of bytecodes | |
55 // | |
56 // templateInterpreter* cppInterpreter* generation of assembly code that creates | |
57 // and manages interpreter runtime frames. | |
58 // Also code for populating interpreter | |
59 // frames created during deoptimization. | |
60 // | |
61 // For both template and c++ interpreter. There are common files for aspects of the interpreter | |
62 // that are generic to both interpreters. This is the layout: | |
63 // | |
64 // abstractInterpreter.hpp: generic description of the interpreter. | |
65 // interpreter*: generic frame creation and handling. | |
66 // | |
67 | |
68 //------------------------------------------------------------------------------------------------------------------------ | |
69 // The C++ interface to the bytecode interpreter(s). | |
70 | |
71 class AbstractInterpreter: AllStatic { | |
72 friend class VMStructs; | |
73 friend class Interpreter; | |
74 friend class CppInterpreterGenerator; | |
75 public: | |
76 enum MethodKind { | |
77 zerolocals, // method needs locals initialization | |
78 zerolocals_synchronized, // method needs locals initialization & is synchronized | |
79 native, // native method | |
80 native_synchronized, // native method & is synchronized | |
81 empty, // empty method (code: _return) | |
82 accessor, // accessor method (code: _aload_0, _getfield, _(a|i)return) | |
83 abstract, // abstract method (throws an AbstractMethodException) | |
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84 method_handle_invoke_FIRST, // java.lang.invoke.MethodHandles::invokeExact, etc. |
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85 method_handle_invoke_LAST = (method_handle_invoke_FIRST |
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86 + (vmIntrinsics::LAST_MH_SIG_POLY |
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87 - vmIntrinsics::FIRST_MH_SIG_POLY)), |
0 | 88 java_lang_math_sin, // implementation of java.lang.Math.sin (x) |
89 java_lang_math_cos, // implementation of java.lang.Math.cos (x) | |
90 java_lang_math_tan, // implementation of java.lang.Math.tan (x) | |
91 java_lang_math_abs, // implementation of java.lang.Math.abs (x) | |
92 java_lang_math_sqrt, // implementation of java.lang.Math.sqrt (x) | |
93 java_lang_math_log, // implementation of java.lang.Math.log (x) | |
94 java_lang_math_log10, // implementation of java.lang.Math.log10 (x) | |
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95 java_lang_math_pow, // implementation of java.lang.Math.pow (x,y) |
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96 java_lang_math_exp, // implementation of java.lang.Math.exp (x) |
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97 java_lang_ref_reference_get, // implementation of java.lang.ref.Reference.get() |
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98 java_util_zip_CRC32_update, // implementation of java.util.zip.CRC32.update() |
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99 java_util_zip_CRC32_updateBytes, // implementation of java.util.zip.CRC32.updateBytes() |
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100 java_util_zip_CRC32_updateByteBuffer, // implementation of java.util.zip.CRC32.updateByteBuffer() |
0 | 101 number_of_method_entries, |
102 invalid = -1 | |
103 }; | |
104 | |
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105 // Conversion from the part of the above enum to vmIntrinsics::_invokeExact, etc. |
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106 static vmIntrinsics::ID method_handle_intrinsic(MethodKind kind) { |
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107 if (kind >= method_handle_invoke_FIRST && kind <= method_handle_invoke_LAST) |
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108 return (vmIntrinsics::ID)( vmIntrinsics::FIRST_MH_SIG_POLY + (kind - method_handle_invoke_FIRST) ); |
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109 else |
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110 return vmIntrinsics::_none; |
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111 } |
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112 |
0 | 113 enum SomeConstants { |
114 number_of_result_handlers = 10 // number of result handlers for native calls | |
115 }; | |
116 | |
117 protected: | |
118 static StubQueue* _code; // the interpreter code (codelets) | |
119 | |
120 static bool _notice_safepoints; // true if safepoints are activated | |
121 | |
122 static address _native_entry_begin; // Region for native entry code | |
123 static address _native_entry_end; | |
124 | |
125 // method entry points | |
126 static address _entry_table[number_of_method_entries]; // entry points for a given method | |
127 static address _native_abi_to_tosca[number_of_result_handlers]; // for native method result handlers | |
128 static address _slow_signature_handler; // the native method generic (slow) signature handler | |
129 | |
130 static address _rethrow_exception_entry; // rethrows an activation in previous frame | |
131 | |
132 friend class AbstractInterpreterGenerator; | |
133 friend class InterpreterGenerator; | |
134 friend class InterpreterMacroAssembler; | |
135 | |
136 public: | |
137 // Initialization/debugging | |
138 static void initialize(); | |
139 static StubQueue* code() { return _code; } | |
140 | |
141 | |
142 // Method activation | |
143 static MethodKind method_kind(methodHandle m); | |
144 static address entry_for_kind(MethodKind k) { assert(0 <= k && k < number_of_method_entries, "illegal kind"); return _entry_table[k]; } | |
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145 static address entry_for_method(methodHandle m) { return entry_for_kind(method_kind(m)); } |
0 | 146 |
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147 // used for bootstrapping method handles: |
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148 static void set_entry_for_kind(MethodKind k, address e); |
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149 |
0 | 150 static void print_method_kind(MethodKind kind) PRODUCT_RETURN; |
151 | |
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152 static bool can_be_compiled(methodHandle m); |
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153 |
0 | 154 // Runtime support |
155 | |
156 // length = invoke bytecode length (to advance to next bytecode) | |
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157 static address deopt_entry(TosState state, int length) { ShouldNotReachHere(); return NULL; } |
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158 static address return_entry(TosState state, int length, Bytecodes::Code code) { ShouldNotReachHere(); return NULL; } |
0 | 159 |
160 static address rethrow_exception_entry() { return _rethrow_exception_entry; } | |
161 | |
162 // Activation size in words for a method that is just being called. | |
163 // Parameters haven't been pushed so count them too. | |
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164 static int size_top_interpreter_activation(Method* method); |
0 | 165 |
166 // Deoptimization support | |
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167 // Compute the entry address for continuation after |
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168 static address deopt_continue_after_entry(Method* method, |
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169 address bcp, |
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170 int callee_parameters, |
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171 bool is_top_frame); |
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172 // Compute the entry address for reexecution |
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173 static address deopt_reexecute_entry(Method* method, address bcp); |
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174 // Deoptimization should reexecute this bytecode |
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175 static bool bytecode_should_reexecute(Bytecodes::Code code); |
0 | 176 |
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177 // deoptimization support |
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178 static int size_activation(int max_stack, |
0 | 179 int temps, |
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180 int extra_args, |
0 | 181 int monitors, |
182 int callee_params, | |
183 int callee_locals, | |
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184 bool is_top_frame); |
0 | 185 |
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186 static void layout_activation(Method* method, |
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187 int temps, |
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188 int popframe_args, |
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189 int monitors, |
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190 int caller_actual_parameters, |
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191 int callee_params, |
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192 int callee_locals, |
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193 frame* caller, |
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194 frame* interpreter_frame, |
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195 bool is_top_frame, |
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196 bool is_bottom_frame); |
0 | 197 |
198 // Runtime support | |
199 static bool is_not_reached( methodHandle method, int bci); | |
200 // Safepoint support | |
201 static void notice_safepoints() { ShouldNotReachHere(); } // stops the thread when reaching a safepoint | |
202 static void ignore_safepoints() { ShouldNotReachHere(); } // ignores safepoints | |
203 | |
204 // Support for native calls | |
205 static address slow_signature_handler() { return _slow_signature_handler; } | |
206 static address result_handler(BasicType type) { return _native_abi_to_tosca[BasicType_as_index(type)]; } | |
207 static int BasicType_as_index(BasicType type); // computes index into result_handler_by_index table | |
208 static bool in_native_entry(address pc) { return _native_entry_begin <= pc && pc < _native_entry_end; } | |
209 // Debugging/printing | |
210 static void print(); // prints the interpreter code | |
211 | |
212 public: | |
1506 | 213 // Interpreter helpers |
214 const static int stackElementWords = 1; | |
215 const static int stackElementSize = stackElementWords * wordSize; | |
216 const static int logStackElementSize = LogBytesPerWord; | |
0 | 217 |
218 // Local values relative to locals[n] | |
219 static int local_offset_in_bytes(int n) { | |
1506 | 220 return ((frame::interpreter_frame_expression_stack_direction() * n) * stackElementSize); |
0 | 221 } |
222 | |
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223 // access to stacked values according to type: |
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224 static oop* oop_addr_in_slot(intptr_t* slot_addr) { |
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225 return (oop*) slot_addr; |
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226 } |
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227 static jint* int_addr_in_slot(intptr_t* slot_addr) { |
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228 if ((int) sizeof(jint) < wordSize && !Bytes::is_Java_byte_ordering_different()) |
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229 // big-endian LP64 |
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230 return (jint*)(slot_addr + 1) - 1; |
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231 else |
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232 return (jint*) slot_addr; |
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233 } |
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234 static jlong long_in_slot(intptr_t* slot_addr) { |
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235 if (sizeof(intptr_t) >= sizeof(jlong)) { |
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236 return *(jlong*) slot_addr; |
1506 | 237 } else { |
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238 return Bytes::get_native_u8((address)slot_addr); |
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239 } |
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240 } |
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241 static void set_long_in_slot(intptr_t* slot_addr, jlong value) { |
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242 if (sizeof(intptr_t) >= sizeof(jlong)) { |
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243 *(jlong*) slot_addr = value; |
1506 | 244 } else { |
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245 Bytes::put_native_u8((address)slot_addr, value); |
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246 } |
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247 } |
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248 static void get_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) { |
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249 switch (type) { |
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250 case T_BOOLEAN: value->z = *int_addr_in_slot(slot_addr); break; |
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251 case T_CHAR: value->c = *int_addr_in_slot(slot_addr); break; |
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252 case T_BYTE: value->b = *int_addr_in_slot(slot_addr); break; |
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253 case T_SHORT: value->s = *int_addr_in_slot(slot_addr); break; |
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254 case T_INT: value->i = *int_addr_in_slot(slot_addr); break; |
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255 case T_LONG: value->j = long_in_slot(slot_addr); break; |
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256 case T_FLOAT: value->f = *(jfloat*)int_addr_in_slot(slot_addr); break; |
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257 case T_DOUBLE: value->d = jdouble_cast(long_in_slot(slot_addr)); break; |
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258 case T_OBJECT: value->l = (jobject)*oop_addr_in_slot(slot_addr); break; |
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259 default: ShouldNotReachHere(); |
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260 } |
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261 } |
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262 static void set_jvalue_in_slot(intptr_t* slot_addr, BasicType type, jvalue* value) { |
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263 switch (type) { |
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264 case T_BOOLEAN: *int_addr_in_slot(slot_addr) = (value->z != 0); break; |
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265 case T_CHAR: *int_addr_in_slot(slot_addr) = value->c; break; |
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266 case T_BYTE: *int_addr_in_slot(slot_addr) = value->b; break; |
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267 case T_SHORT: *int_addr_in_slot(slot_addr) = value->s; break; |
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268 case T_INT: *int_addr_in_slot(slot_addr) = value->i; break; |
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269 case T_LONG: set_long_in_slot(slot_addr, value->j); break; |
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270 case T_FLOAT: *(jfloat*)int_addr_in_slot(slot_addr) = value->f; break; |
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271 case T_DOUBLE: set_long_in_slot(slot_addr, jlong_cast(value->d)); break; |
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272 case T_OBJECT: *oop_addr_in_slot(slot_addr) = (oop) value->l; break; |
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273 default: ShouldNotReachHere(); |
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274 } |
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275 } |
0 | 276 }; |
277 | |
278 //------------------------------------------------------------------------------------------------------------------------ | |
279 // The interpreter generator. | |
280 | |
281 class Template; | |
282 class AbstractInterpreterGenerator: public StackObj { | |
283 protected: | |
284 InterpreterMacroAssembler* _masm; | |
285 | |
286 // shared code sequences | |
287 // Converter for native abi result to tosca result | |
288 address generate_result_handler_for(BasicType type); | |
289 address generate_slow_signature_handler(); | |
290 | |
291 // entry point generator | |
292 address generate_method_entry(AbstractInterpreter::MethodKind kind); | |
293 | |
294 void bang_stack_shadow_pages(bool native_call); | |
295 | |
296 void generate_all(); | |
6926 | 297 void initialize_method_handle_entries(); |
0 | 298 |
299 public: | |
300 AbstractInterpreterGenerator(StubQueue* _code); | |
301 }; | |
1972 | 302 |
303 #endif // SHARE_VM_INTERPRETER_ABSTRACTINTERPRETER_HPP |