Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 8803:a649f6511c04
8010084: Race in runtime/NMT/BaselineWithParameter.java
Summary: Added a waitFor() on the process
Reviewed-by: mgerdin, sla, zgu
author | ctornqvi |
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date | Wed, 20 Mar 2013 08:17:55 +0100 |
parents | db9981fd3124 |
children | c76b43ed5089 f2e682ef3156 aeaca88565e6 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2012, 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 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
1972 | 27 #include "interpreter/interpreter.hpp" |
28 #include "interpreter/interpreterRuntime.hpp" | |
29 #include "interpreter/templateTable.hpp" | |
30 #include "memory/universe.inline.hpp" | |
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31 #include "oops/methodData.hpp" |
1972 | 32 #include "oops/objArrayKlass.hpp" |
33 #include "oops/oop.inline.hpp" | |
34 #include "prims/methodHandles.hpp" | |
35 #include "runtime/sharedRuntime.hpp" | |
36 #include "runtime/stubRoutines.hpp" | |
37 #include "runtime/synchronizer.hpp" | |
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38 #include "utilities/macros.hpp" |
0 | 39 |
304 | 40 #ifndef CC_INTERP |
41 | |
0 | 42 #define __ _masm-> |
43 | |
44 // Platform-dependent initialization | |
45 | |
46 void TemplateTable::pd_initialize() { | |
47 // No amd64 specific initialization | |
48 } | |
49 | |
50 // Address computation: local variables | |
51 | |
52 static inline Address iaddress(int n) { | |
53 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
54 } | |
55 | |
56 static inline Address laddress(int n) { | |
57 return iaddress(n + 1); | |
58 } | |
59 | |
60 static inline Address faddress(int n) { | |
61 return iaddress(n); | |
62 } | |
63 | |
64 static inline Address daddress(int n) { | |
65 return laddress(n); | |
66 } | |
67 | |
68 static inline Address aaddress(int n) { | |
69 return iaddress(n); | |
70 } | |
71 | |
72 static inline Address iaddress(Register r) { | |
1506 | 73 return Address(r14, r, Address::times_8); |
0 | 74 } |
75 | |
76 static inline Address laddress(Register r) { | |
77 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
78 } | |
79 | |
80 static inline Address faddress(Register r) { | |
81 return iaddress(r); | |
82 } | |
83 | |
84 static inline Address daddress(Register r) { | |
85 return laddress(r); | |
86 } | |
87 | |
88 static inline Address aaddress(Register r) { | |
89 return iaddress(r); | |
90 } | |
91 | |
92 static inline Address at_rsp() { | |
93 return Address(rsp, 0); | |
94 } | |
95 | |
96 // At top of Java expression stack which may be different than esp(). It | |
97 // isn't for category 1 objects. | |
98 static inline Address at_tos () { | |
99 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
100 } | |
101 | |
102 static inline Address at_tos_p1() { | |
103 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
104 } | |
105 | |
106 static inline Address at_tos_p2() { | |
107 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
108 } | |
109 | |
110 static inline Address at_tos_p3() { | |
111 return Address(rsp, Interpreter::expr_offset_in_bytes(3)); | |
112 } | |
113 | |
114 // Condition conversion | |
115 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
116 switch (cc) { | |
117 case TemplateTable::equal : return Assembler::notEqual; | |
118 case TemplateTable::not_equal : return Assembler::equal; | |
119 case TemplateTable::less : return Assembler::greaterEqual; | |
120 case TemplateTable::less_equal : return Assembler::greater; | |
121 case TemplateTable::greater : return Assembler::lessEqual; | |
122 case TemplateTable::greater_equal: return Assembler::less; | |
123 } | |
124 ShouldNotReachHere(); | |
125 return Assembler::zero; | |
126 } | |
127 | |
128 | |
129 // Miscelaneous helper routines | |
342
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130 // Store an oop (or NULL) at the address described by obj. |
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131 // If val == noreg this means store a NULL |
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132 |
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133 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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134 Address obj, |
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135 Register val, |
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136 BarrierSet::Name barrier, |
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137 bool precise) { |
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138 assert(val == noreg || val == rax, "parameter is just for looks"); |
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139 switch (barrier) { |
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140 #if INCLUDE_ALL_GCS |
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141 case BarrierSet::G1SATBCT: |
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142 case BarrierSet::G1SATBCTLogging: |
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143 { |
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144 // flatten object address if needed |
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145 if (obj.index() == noreg && obj.disp() == 0) { |
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146 if (obj.base() != rdx) { |
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147 __ movq(rdx, obj.base()); |
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148 } |
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149 } else { |
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150 __ leaq(rdx, obj); |
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151 } |
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152 __ g1_write_barrier_pre(rdx /* obj */, |
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153 rbx /* pre_val */, |
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154 r15_thread /* thread */, |
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155 r8 /* tmp */, |
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156 val != noreg /* tosca_live */, |
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157 false /* expand_call */); |
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158 if (val == noreg) { |
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159 __ store_heap_oop_null(Address(rdx, 0)); |
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160 } else { |
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161 __ store_heap_oop(Address(rdx, 0), val); |
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162 __ g1_write_barrier_post(rdx /* store_adr */, |
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163 val /* new_val */, |
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164 r15_thread /* thread */, |
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165 r8 /* tmp */, |
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166 rbx /* tmp2 */); |
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167 } |
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168 |
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169 } |
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170 break; |
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171 #endif // INCLUDE_ALL_GCS |
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172 case BarrierSet::CardTableModRef: |
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173 case BarrierSet::CardTableExtension: |
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174 { |
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175 if (val == noreg) { |
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176 __ store_heap_oop_null(obj); |
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177 } else { |
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178 __ store_heap_oop(obj, val); |
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179 // flatten object address if needed |
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180 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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181 __ store_check(obj.base()); |
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182 } else { |
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183 __ leaq(rdx, obj); |
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184 __ store_check(rdx); |
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185 } |
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186 } |
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187 } |
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188 break; |
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189 case BarrierSet::ModRef: |
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190 case BarrierSet::Other: |
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191 if (val == noreg) { |
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192 __ store_heap_oop_null(obj); |
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193 } else { |
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194 __ store_heap_oop(obj, val); |
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195 } |
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196 break; |
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197 default : |
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198 ShouldNotReachHere(); |
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199 |
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200 } |
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201 } |
0 | 202 |
203 Address TemplateTable::at_bcp(int offset) { | |
204 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
205 return Address(r13, offset); | |
206 } | |
207 | |
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208 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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209 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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210 int byte_no) { |
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211 if (!RewriteBytecodes) return; |
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212 Label L_patch_done; |
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213 |
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214 switch (bc) { |
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215 case Bytecodes::_fast_aputfield: |
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216 case Bytecodes::_fast_bputfield: |
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217 case Bytecodes::_fast_cputfield: |
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218 case Bytecodes::_fast_dputfield: |
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219 case Bytecodes::_fast_fputfield: |
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220 case Bytecodes::_fast_iputfield: |
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221 case Bytecodes::_fast_lputfield: |
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222 case Bytecodes::_fast_sputfield: |
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223 { |
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224 // We skip bytecode quickening for putfield instructions when |
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225 // the put_code written to the constant pool cache is zero. |
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226 // This is required so that every execution of this instruction |
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227 // calls out to InterpreterRuntime::resolve_get_put to do |
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228 // additional, required work. |
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229 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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230 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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231 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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232 __ movl(bc_reg, bc); |
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233 __ cmpl(temp_reg, (int) 0); |
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234 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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235 } |
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236 break; |
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237 default: |
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238 assert(byte_no == -1, "sanity"); |
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239 // the pair bytecodes have already done the load. |
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240 if (load_bc_into_bc_reg) { |
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241 __ movl(bc_reg, bc); |
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242 } |
0 | 243 } |
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244 |
0 | 245 if (JvmtiExport::can_post_breakpoint()) { |
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246 Label L_fast_patch; |
0 | 247 // if a breakpoint is present we can't rewrite the stream directly |
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248 __ movzbl(temp_reg, at_bcp(0)); |
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249 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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250 __ jcc(Assembler::notEqual, L_fast_patch); |
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251 __ get_method(temp_reg); |
0 | 252 // Let breakpoint table handling rewrite to quicker bytecode |
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253 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
0 | 254 #ifndef ASSERT |
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255 __ jmpb(L_patch_done); |
1108 | 256 #else |
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257 __ jmp(L_patch_done); |
1108 | 258 #endif |
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259 __ bind(L_fast_patch); |
0 | 260 } |
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261 |
1108 | 262 #ifdef ASSERT |
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263 Label L_okay; |
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264 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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265 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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266 __ jcc(Assembler::equal, L_okay); |
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267 __ cmpl(temp_reg, bc_reg); |
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268 __ jcc(Assembler::equal, L_okay); |
0 | 269 __ stop("patching the wrong bytecode"); |
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270 __ bind(L_okay); |
0 | 271 #endif |
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272 |
0 | 273 // patch bytecode |
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274 __ movb(at_bcp(0), bc_reg); |
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275 __ bind(L_patch_done); |
0 | 276 } |
277 | |
278 | |
279 // Individual instructions | |
280 | |
281 void TemplateTable::nop() { | |
282 transition(vtos, vtos); | |
283 // nothing to do | |
284 } | |
285 | |
286 void TemplateTable::shouldnotreachhere() { | |
287 transition(vtos, vtos); | |
288 __ stop("shouldnotreachhere bytecode"); | |
289 } | |
290 | |
291 void TemplateTable::aconst_null() { | |
292 transition(vtos, atos); | |
293 __ xorl(rax, rax); | |
294 } | |
295 | |
296 void TemplateTable::iconst(int value) { | |
297 transition(vtos, itos); | |
298 if (value == 0) { | |
299 __ xorl(rax, rax); | |
300 } else { | |
301 __ movl(rax, value); | |
302 } | |
303 } | |
304 | |
305 void TemplateTable::lconst(int value) { | |
306 transition(vtos, ltos); | |
307 if (value == 0) { | |
308 __ xorl(rax, rax); | |
309 } else { | |
310 __ movl(rax, value); | |
311 } | |
312 } | |
313 | |
314 void TemplateTable::fconst(int value) { | |
315 transition(vtos, ftos); | |
316 static float one = 1.0f, two = 2.0f; | |
317 switch (value) { | |
318 case 0: | |
319 __ xorps(xmm0, xmm0); | |
320 break; | |
321 case 1: | |
322 __ movflt(xmm0, ExternalAddress((address) &one)); | |
323 break; | |
324 case 2: | |
325 __ movflt(xmm0, ExternalAddress((address) &two)); | |
326 break; | |
327 default: | |
328 ShouldNotReachHere(); | |
329 break; | |
330 } | |
331 } | |
332 | |
333 void TemplateTable::dconst(int value) { | |
334 transition(vtos, dtos); | |
335 static double one = 1.0; | |
336 switch (value) { | |
337 case 0: | |
338 __ xorpd(xmm0, xmm0); | |
339 break; | |
340 case 1: | |
341 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
342 break; | |
343 default: | |
344 ShouldNotReachHere(); | |
345 break; | |
346 } | |
347 } | |
348 | |
349 void TemplateTable::bipush() { | |
350 transition(vtos, itos); | |
351 __ load_signed_byte(rax, at_bcp(1)); | |
352 } | |
353 | |
354 void TemplateTable::sipush() { | |
355 transition(vtos, itos); | |
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356 __ load_unsigned_short(rax, at_bcp(1)); |
0 | 357 __ bswapl(rax); |
358 __ sarl(rax, 16); | |
359 } | |
360 | |
361 void TemplateTable::ldc(bool wide) { | |
362 transition(vtos, vtos); | |
363 Label call_ldc, notFloat, notClass, Done; | |
364 | |
365 if (wide) { | |
366 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
367 } else { | |
368 __ load_unsigned_byte(rbx, at_bcp(1)); | |
369 } | |
370 | |
371 __ get_cpool_and_tags(rcx, rax); | |
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372 const int base_offset = ConstantPool::header_size() * wordSize; |
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373 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 374 |
375 // get type | |
376 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
377 | |
378 // unresolved class - get the resolved class | |
379 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
380 __ jccb(Assembler::equal, call_ldc); | |
381 | |
382 // unresolved class in error state - call into runtime to throw the error | |
383 // from the first resolution attempt | |
384 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
385 __ jccb(Assembler::equal, call_ldc); | |
386 | |
387 // resolved class - need to call vm to get java mirror of the class | |
388 __ cmpl(rdx, JVM_CONSTANT_Class); | |
389 __ jcc(Assembler::notEqual, notClass); | |
390 | |
391 __ bind(call_ldc); | |
392 __ movl(c_rarg1, wide); | |
393 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
394 __ push_ptr(rax); | |
395 __ verify_oop(rax); | |
396 __ jmp(Done); | |
397 | |
398 __ bind(notClass); | |
399 __ cmpl(rdx, JVM_CONSTANT_Float); | |
400 __ jccb(Assembler::notEqual, notFloat); | |
401 // ftos | |
402 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
403 __ push_f(); | |
404 __ jmp(Done); | |
405 | |
406 __ bind(notFloat); | |
407 #ifdef ASSERT | |
408 { | |
409 Label L; | |
410 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
411 __ jcc(Assembler::equal, L); | |
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412 // String and Object are rewritten to fast_aldc |
0 | 413 __ stop("unexpected tag type in ldc"); |
414 __ bind(L); | |
415 } | |
416 #endif | |
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417 // itos JVM_CONSTANT_Integer only |
0 | 418 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
419 __ push_i(rax); | |
420 __ bind(Done); | |
421 } | |
422 | |
1602 | 423 // Fast path for caching oop constants. |
424 void TemplateTable::fast_aldc(bool wide) { | |
425 transition(vtos, atos); | |
426 | |
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427 Register result = rax; |
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428 Register tmp = rdx; |
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429 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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430 |
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431 Label resolved; |
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432 |
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433 // We are resolved if the resolved reference cache entry contains a |
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434 // non-null object (String, MethodType, etc.) |
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435 assert_different_registers(result, tmp); |
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436 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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437 __ load_resolved_reference_at_index(result, tmp); |
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438 __ testl(result, result); |
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439 __ jcc(Assembler::notZero, resolved); |
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440 |
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441 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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442 |
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443 // first time invocation - must resolve first |
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444 __ movl(tmp, (int)bytecode()); |
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445 __ call_VM(result, entry, tmp); |
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446 |
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447 __ bind(resolved); |
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448 |
1602 | 449 if (VerifyOops) { |
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450 __ verify_oop(result); |
1602 | 451 } |
452 } | |
453 | |
0 | 454 void TemplateTable::ldc2_w() { |
455 transition(vtos, vtos); | |
456 Label Long, Done; | |
457 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
458 | |
459 __ get_cpool_and_tags(rcx, rax); | |
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460 const int base_offset = ConstantPool::header_size() * wordSize; |
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461 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 462 |
463 // get type | |
464 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
465 JVM_CONSTANT_Double); | |
466 __ jccb(Assembler::notEqual, Long); | |
467 // dtos | |
468 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
469 __ push_d(); | |
470 __ jmpb(Done); | |
471 | |
472 __ bind(Long); | |
473 // ltos | |
474 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
475 __ push_l(); | |
476 | |
477 __ bind(Done); | |
478 } | |
479 | |
480 void TemplateTable::locals_index(Register reg, int offset) { | |
481 __ load_unsigned_byte(reg, at_bcp(offset)); | |
304 | 482 __ negptr(reg); |
0 | 483 } |
484 | |
485 void TemplateTable::iload() { | |
486 transition(vtos, itos); | |
487 if (RewriteFrequentPairs) { | |
488 Label rewrite, done; | |
489 const Register bc = c_rarg3; | |
490 assert(rbx != bc, "register damaged"); | |
491 | |
492 // get next byte | |
493 __ load_unsigned_byte(rbx, | |
494 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
495 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
496 // last two iloads in a pair. Comparing against fast_iload means that | |
497 // the next bytecode is neither an iload or a caload, and therefore | |
498 // an iload pair. | |
499 __ cmpl(rbx, Bytecodes::_iload); | |
500 __ jcc(Assembler::equal, done); | |
501 | |
502 __ cmpl(rbx, Bytecodes::_fast_iload); | |
503 __ movl(bc, Bytecodes::_fast_iload2); | |
504 __ jccb(Assembler::equal, rewrite); | |
505 | |
506 // if _caload, rewrite to fast_icaload | |
507 __ cmpl(rbx, Bytecodes::_caload); | |
508 __ movl(bc, Bytecodes::_fast_icaload); | |
509 __ jccb(Assembler::equal, rewrite); | |
510 | |
511 // rewrite so iload doesn't check again. | |
512 __ movl(bc, Bytecodes::_fast_iload); | |
513 | |
514 // rewrite | |
515 // bc: fast bytecode | |
516 __ bind(rewrite); | |
517 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
518 __ bind(done); | |
519 } | |
520 | |
521 // Get the local value into tos | |
522 locals_index(rbx); | |
523 __ movl(rax, iaddress(rbx)); | |
524 } | |
525 | |
526 void TemplateTable::fast_iload2() { | |
527 transition(vtos, itos); | |
528 locals_index(rbx); | |
529 __ movl(rax, iaddress(rbx)); | |
530 __ push(itos); | |
531 locals_index(rbx, 3); | |
532 __ movl(rax, iaddress(rbx)); | |
533 } | |
534 | |
535 void TemplateTable::fast_iload() { | |
536 transition(vtos, itos); | |
537 locals_index(rbx); | |
538 __ movl(rax, iaddress(rbx)); | |
539 } | |
540 | |
541 void TemplateTable::lload() { | |
542 transition(vtos, ltos); | |
543 locals_index(rbx); | |
544 __ movq(rax, laddress(rbx)); | |
545 } | |
546 | |
547 void TemplateTable::fload() { | |
548 transition(vtos, ftos); | |
549 locals_index(rbx); | |
550 __ movflt(xmm0, faddress(rbx)); | |
551 } | |
552 | |
553 void TemplateTable::dload() { | |
554 transition(vtos, dtos); | |
555 locals_index(rbx); | |
556 __ movdbl(xmm0, daddress(rbx)); | |
557 } | |
558 | |
559 void TemplateTable::aload() { | |
560 transition(vtos, atos); | |
561 locals_index(rbx); | |
304 | 562 __ movptr(rax, aaddress(rbx)); |
0 | 563 } |
564 | |
565 void TemplateTable::locals_index_wide(Register reg) { | |
566 __ movl(reg, at_bcp(2)); | |
567 __ bswapl(reg); | |
568 __ shrl(reg, 16); | |
304 | 569 __ negptr(reg); |
0 | 570 } |
571 | |
572 void TemplateTable::wide_iload() { | |
573 transition(vtos, itos); | |
574 locals_index_wide(rbx); | |
575 __ movl(rax, iaddress(rbx)); | |
576 } | |
577 | |
578 void TemplateTable::wide_lload() { | |
579 transition(vtos, ltos); | |
580 locals_index_wide(rbx); | |
581 __ movq(rax, laddress(rbx)); | |
582 } | |
583 | |
584 void TemplateTable::wide_fload() { | |
585 transition(vtos, ftos); | |
586 locals_index_wide(rbx); | |
587 __ movflt(xmm0, faddress(rbx)); | |
588 } | |
589 | |
590 void TemplateTable::wide_dload() { | |
591 transition(vtos, dtos); | |
592 locals_index_wide(rbx); | |
593 __ movdbl(xmm0, daddress(rbx)); | |
594 } | |
595 | |
596 void TemplateTable::wide_aload() { | |
597 transition(vtos, atos); | |
598 locals_index_wide(rbx); | |
304 | 599 __ movptr(rax, aaddress(rbx)); |
0 | 600 } |
601 | |
602 void TemplateTable::index_check(Register array, Register index) { | |
603 // destroys rbx | |
604 // check array | |
605 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
606 // sign extend index for use by indexed load | |
304 | 607 __ movl2ptr(index, index); |
0 | 608 // check index |
609 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
610 if (index != rbx) { | |
611 // ??? convention: move aberrant index into ebx for exception message | |
612 assert(rbx != array, "different registers"); | |
613 __ movl(rbx, index); | |
614 } | |
615 __ jump_cc(Assembler::aboveEqual, | |
616 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
617 } | |
618 | |
619 void TemplateTable::iaload() { | |
620 transition(itos, itos); | |
621 __ pop_ptr(rdx); | |
622 // eax: index | |
623 // rdx: array | |
624 index_check(rdx, rax); // kills rbx | |
625 __ movl(rax, Address(rdx, rax, | |
626 Address::times_4, | |
627 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
628 } | |
629 | |
630 void TemplateTable::laload() { | |
631 transition(itos, ltos); | |
632 __ pop_ptr(rdx); | |
633 // eax: index | |
634 // rdx: array | |
635 index_check(rdx, rax); // kills rbx | |
636 __ movq(rax, Address(rdx, rbx, | |
637 Address::times_8, | |
638 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
639 } | |
640 | |
641 void TemplateTable::faload() { | |
642 transition(itos, ftos); | |
643 __ pop_ptr(rdx); | |
644 // eax: index | |
645 // rdx: array | |
646 index_check(rdx, rax); // kills rbx | |
647 __ movflt(xmm0, Address(rdx, rax, | |
648 Address::times_4, | |
649 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
650 } | |
651 | |
652 void TemplateTable::daload() { | |
653 transition(itos, dtos); | |
654 __ pop_ptr(rdx); | |
655 // eax: index | |
656 // rdx: array | |
657 index_check(rdx, rax); // kills rbx | |
658 __ movdbl(xmm0, Address(rdx, rax, | |
659 Address::times_8, | |
660 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
661 } | |
662 | |
663 void TemplateTable::aaload() { | |
664 transition(itos, atos); | |
665 __ pop_ptr(rdx); | |
666 // eax: index | |
667 // rdx: array | |
668 index_check(rdx, rax); // kills rbx | |
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669 __ load_heap_oop(rax, Address(rdx, rax, |
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670 UseCompressedOops ? Address::times_4 : Address::times_8, |
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671 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
0 | 672 } |
673 | |
674 void TemplateTable::baload() { | |
675 transition(itos, itos); | |
676 __ pop_ptr(rdx); | |
677 // eax: index | |
678 // rdx: array | |
679 index_check(rdx, rax); // kills rbx | |
680 __ load_signed_byte(rax, | |
681 Address(rdx, rax, | |
682 Address::times_1, | |
683 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
684 } | |
685 | |
686 void TemplateTable::caload() { | |
687 transition(itos, itos); | |
688 __ pop_ptr(rdx); | |
689 // eax: index | |
690 // rdx: array | |
691 index_check(rdx, rax); // kills rbx | |
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692 __ load_unsigned_short(rax, |
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693 Address(rdx, rax, |
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694 Address::times_2, |
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695 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 696 } |
697 | |
698 // iload followed by caload frequent pair | |
699 void TemplateTable::fast_icaload() { | |
700 transition(vtos, itos); | |
701 // load index out of locals | |
702 locals_index(rbx); | |
703 __ movl(rax, iaddress(rbx)); | |
704 | |
705 // eax: index | |
706 // rdx: array | |
707 __ pop_ptr(rdx); | |
708 index_check(rdx, rax); // kills rbx | |
622
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709 __ load_unsigned_short(rax, |
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710 Address(rdx, rax, |
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711 Address::times_2, |
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712 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 713 } |
714 | |
715 void TemplateTable::saload() { | |
716 transition(itos, itos); | |
717 __ pop_ptr(rdx); | |
718 // eax: index | |
719 // rdx: array | |
720 index_check(rdx, rax); // kills rbx | |
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721 __ load_signed_short(rax, |
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722 Address(rdx, rax, |
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723 Address::times_2, |
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724 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
0 | 725 } |
726 | |
727 void TemplateTable::iload(int n) { | |
728 transition(vtos, itos); | |
729 __ movl(rax, iaddress(n)); | |
730 } | |
731 | |
732 void TemplateTable::lload(int n) { | |
733 transition(vtos, ltos); | |
734 __ movq(rax, laddress(n)); | |
735 } | |
736 | |
737 void TemplateTable::fload(int n) { | |
738 transition(vtos, ftos); | |
739 __ movflt(xmm0, faddress(n)); | |
740 } | |
741 | |
742 void TemplateTable::dload(int n) { | |
743 transition(vtos, dtos); | |
744 __ movdbl(xmm0, daddress(n)); | |
745 } | |
746 | |
747 void TemplateTable::aload(int n) { | |
748 transition(vtos, atos); | |
304 | 749 __ movptr(rax, aaddress(n)); |
0 | 750 } |
751 | |
752 void TemplateTable::aload_0() { | |
753 transition(vtos, atos); | |
754 // According to bytecode histograms, the pairs: | |
755 // | |
756 // _aload_0, _fast_igetfield | |
757 // _aload_0, _fast_agetfield | |
758 // _aload_0, _fast_fgetfield | |
759 // | |
760 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
761 // _aload_0 bytecode checks if the next bytecode is either | |
762 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
763 // rewrites the current bytecode into a pair bytecode; otherwise it | |
764 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
765 // the pair check anymore. | |
766 // | |
767 // Note: If the next bytecode is _getfield, the rewrite must be | |
768 // delayed, otherwise we may miss an opportunity for a pair. | |
769 // | |
770 // Also rewrite frequent pairs | |
771 // aload_0, aload_1 | |
772 // aload_0, iload_1 | |
773 // These bytecodes with a small amount of code are most profitable | |
774 // to rewrite | |
775 if (RewriteFrequentPairs) { | |
776 Label rewrite, done; | |
777 const Register bc = c_rarg3; | |
778 assert(rbx != bc, "register damaged"); | |
779 // get next byte | |
780 __ load_unsigned_byte(rbx, | |
781 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
782 | |
783 // do actual aload_0 | |
784 aload(0); | |
785 | |
786 // if _getfield then wait with rewrite | |
787 __ cmpl(rbx, Bytecodes::_getfield); | |
788 __ jcc(Assembler::equal, done); | |
789 | |
790 // if _igetfield then reqrite to _fast_iaccess_0 | |
791 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
792 Bytecodes::_aload_0, | |
793 "fix bytecode definition"); | |
794 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
795 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
796 __ jccb(Assembler::equal, rewrite); | |
797 | |
798 // if _agetfield then reqrite to _fast_aaccess_0 | |
799 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
800 Bytecodes::_aload_0, | |
801 "fix bytecode definition"); | |
802 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
803 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
804 __ jccb(Assembler::equal, rewrite); | |
805 | |
806 // if _fgetfield then reqrite to _fast_faccess_0 | |
807 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
808 Bytecodes::_aload_0, | |
809 "fix bytecode definition"); | |
810 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
811 __ movl(bc, Bytecodes::_fast_faccess_0); | |
812 __ jccb(Assembler::equal, rewrite); | |
813 | |
814 // else rewrite to _fast_aload0 | |
815 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
816 Bytecodes::_aload_0, | |
817 "fix bytecode definition"); | |
818 __ movl(bc, Bytecodes::_fast_aload_0); | |
819 | |
820 // rewrite | |
821 // bc: fast bytecode | |
822 __ bind(rewrite); | |
823 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
824 | |
825 __ bind(done); | |
826 } else { | |
827 aload(0); | |
828 } | |
829 } | |
830 | |
831 void TemplateTable::istore() { | |
832 transition(itos, vtos); | |
833 locals_index(rbx); | |
834 __ movl(iaddress(rbx), rax); | |
835 } | |
836 | |
837 void TemplateTable::lstore() { | |
838 transition(ltos, vtos); | |
839 locals_index(rbx); | |
840 __ movq(laddress(rbx), rax); | |
841 } | |
842 | |
843 void TemplateTable::fstore() { | |
844 transition(ftos, vtos); | |
845 locals_index(rbx); | |
846 __ movflt(faddress(rbx), xmm0); | |
847 } | |
848 | |
849 void TemplateTable::dstore() { | |
850 transition(dtos, vtos); | |
851 locals_index(rbx); | |
852 __ movdbl(daddress(rbx), xmm0); | |
853 } | |
854 | |
855 void TemplateTable::astore() { | |
856 transition(vtos, vtos); | |
1506 | 857 __ pop_ptr(rax); |
0 | 858 locals_index(rbx); |
304 | 859 __ movptr(aaddress(rbx), rax); |
0 | 860 } |
861 | |
862 void TemplateTable::wide_istore() { | |
863 transition(vtos, vtos); | |
864 __ pop_i(); | |
865 locals_index_wide(rbx); | |
866 __ movl(iaddress(rbx), rax); | |
867 } | |
868 | |
869 void TemplateTable::wide_lstore() { | |
870 transition(vtos, vtos); | |
871 __ pop_l(); | |
872 locals_index_wide(rbx); | |
873 __ movq(laddress(rbx), rax); | |
874 } | |
875 | |
876 void TemplateTable::wide_fstore() { | |
877 transition(vtos, vtos); | |
878 __ pop_f(); | |
879 locals_index_wide(rbx); | |
880 __ movflt(faddress(rbx), xmm0); | |
881 } | |
882 | |
883 void TemplateTable::wide_dstore() { | |
884 transition(vtos, vtos); | |
885 __ pop_d(); | |
886 locals_index_wide(rbx); | |
887 __ movdbl(daddress(rbx), xmm0); | |
888 } | |
889 | |
890 void TemplateTable::wide_astore() { | |
891 transition(vtos, vtos); | |
1506 | 892 __ pop_ptr(rax); |
0 | 893 locals_index_wide(rbx); |
304 | 894 __ movptr(aaddress(rbx), rax); |
0 | 895 } |
896 | |
897 void TemplateTable::iastore() { | |
898 transition(itos, vtos); | |
899 __ pop_i(rbx); | |
900 __ pop_ptr(rdx); | |
901 // eax: value | |
902 // ebx: index | |
903 // rdx: array | |
904 index_check(rdx, rbx); // prefer index in ebx | |
905 __ movl(Address(rdx, rbx, | |
906 Address::times_4, | |
907 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
908 rax); | |
909 } | |
910 | |
911 void TemplateTable::lastore() { | |
912 transition(ltos, vtos); | |
913 __ pop_i(rbx); | |
914 __ pop_ptr(rdx); | |
915 // rax: value | |
916 // ebx: index | |
917 // rdx: array | |
918 index_check(rdx, rbx); // prefer index in ebx | |
919 __ movq(Address(rdx, rbx, | |
920 Address::times_8, | |
921 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
922 rax); | |
923 } | |
924 | |
925 void TemplateTable::fastore() { | |
926 transition(ftos, vtos); | |
927 __ pop_i(rbx); | |
928 __ pop_ptr(rdx); | |
929 // xmm0: value | |
930 // ebx: index | |
931 // rdx: array | |
932 index_check(rdx, rbx); // prefer index in ebx | |
933 __ movflt(Address(rdx, rbx, | |
934 Address::times_4, | |
935 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
936 xmm0); | |
937 } | |
938 | |
939 void TemplateTable::dastore() { | |
940 transition(dtos, vtos); | |
941 __ pop_i(rbx); | |
942 __ pop_ptr(rdx); | |
943 // xmm0: value | |
944 // ebx: index | |
945 // rdx: array | |
946 index_check(rdx, rbx); // prefer index in ebx | |
947 __ movdbl(Address(rdx, rbx, | |
948 Address::times_8, | |
949 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
950 xmm0); | |
951 } | |
952 | |
953 void TemplateTable::aastore() { | |
954 Label is_null, ok_is_subtype, done; | |
955 transition(vtos, vtos); | |
956 // stack: ..., array, index, value | |
304 | 957 __ movptr(rax, at_tos()); // value |
0 | 958 __ movl(rcx, at_tos_p1()); // index |
304 | 959 __ movptr(rdx, at_tos_p2()); // array |
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960 |
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961 Address element_address(rdx, rcx, |
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962 UseCompressedOops? Address::times_4 : Address::times_8, |
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963 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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964 |
0 | 965 index_check(rdx, rcx); // kills rbx |
966 // do array store check - check for NULL value first | |
304 | 967 __ testptr(rax, rax); |
0 | 968 __ jcc(Assembler::zero, is_null); |
969 | |
970 // Move subklass into rbx | |
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971 __ load_klass(rbx, rax); |
0 | 972 // Move superklass into rax |
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973 __ load_klass(rax, rdx); |
304 | 974 __ movptr(rax, Address(rax, |
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975 ObjArrayKlass::element_klass_offset())); |
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976 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
362 | 977 __ lea(rdx, element_address); |
0 | 978 |
979 // Generate subtype check. Blows rcx, rdi | |
980 // Superklass in rax. Subklass in rbx. | |
981 __ gen_subtype_check(rbx, ok_is_subtype); | |
982 | |
983 // Come here on failure | |
984 // object is at TOS | |
985 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
986 | |
987 // Come here on success | |
988 __ bind(ok_is_subtype); | |
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989 |
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990 // Get the value we will store |
362 | 991 __ movptr(rax, at_tos()); |
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992 // Now store using the appropriate barrier |
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993 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
0 | 994 __ jmp(done); |
995 | |
996 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
997 __ bind(is_null); | |
998 __ profile_null_seen(rbx); | |
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999 |
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1000 // Store a NULL |
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1001 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
0 | 1002 |
1003 // Pop stack arguments | |
1004 __ bind(done); | |
1506 | 1005 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
0 | 1006 } |
1007 | |
1008 void TemplateTable::bastore() { | |
1009 transition(itos, vtos); | |
1010 __ pop_i(rbx); | |
1011 __ pop_ptr(rdx); | |
1012 // eax: value | |
1013 // ebx: index | |
1014 // rdx: array | |
1015 index_check(rdx, rbx); // prefer index in ebx | |
1016 __ movb(Address(rdx, rbx, | |
1017 Address::times_1, | |
1018 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
1019 rax); | |
1020 } | |
1021 | |
1022 void TemplateTable::castore() { | |
1023 transition(itos, vtos); | |
1024 __ pop_i(rbx); | |
1025 __ pop_ptr(rdx); | |
1026 // eax: value | |
1027 // ebx: index | |
1028 // rdx: array | |
1029 index_check(rdx, rbx); // prefer index in ebx | |
1030 __ movw(Address(rdx, rbx, | |
1031 Address::times_2, | |
1032 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
1033 rax); | |
1034 } | |
1035 | |
1036 void TemplateTable::sastore() { | |
1037 castore(); | |
1038 } | |
1039 | |
1040 void TemplateTable::istore(int n) { | |
1041 transition(itos, vtos); | |
1042 __ movl(iaddress(n), rax); | |
1043 } | |
1044 | |
1045 void TemplateTable::lstore(int n) { | |
1046 transition(ltos, vtos); | |
1047 __ movq(laddress(n), rax); | |
1048 } | |
1049 | |
1050 void TemplateTable::fstore(int n) { | |
1051 transition(ftos, vtos); | |
1052 __ movflt(faddress(n), xmm0); | |
1053 } | |
1054 | |
1055 void TemplateTable::dstore(int n) { | |
1056 transition(dtos, vtos); | |
1057 __ movdbl(daddress(n), xmm0); | |
1058 } | |
1059 | |
1060 void TemplateTable::astore(int n) { | |
1061 transition(vtos, vtos); | |
1506 | 1062 __ pop_ptr(rax); |
304 | 1063 __ movptr(aaddress(n), rax); |
0 | 1064 } |
1065 | |
1066 void TemplateTable::pop() { | |
1067 transition(vtos, vtos); | |
1506 | 1068 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1069 } |
1070 | |
1071 void TemplateTable::pop2() { | |
1072 transition(vtos, vtos); | |
1506 | 1073 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1074 } |
1075 | |
1076 void TemplateTable::dup() { | |
1077 transition(vtos, vtos); | |
1506 | 1078 __ load_ptr(0, rax); |
1079 __ push_ptr(rax); | |
0 | 1080 // stack: ..., a, a |
1081 } | |
1082 | |
1083 void TemplateTable::dup_x1() { | |
1084 transition(vtos, vtos); | |
1085 // stack: ..., a, b | |
1506 | 1086 __ load_ptr( 0, rax); // load b |
1087 __ load_ptr( 1, rcx); // load a | |
1088 __ store_ptr(1, rax); // store b | |
1089 __ store_ptr(0, rcx); // store a | |
1090 __ push_ptr(rax); // push b | |
0 | 1091 // stack: ..., b, a, b |
1092 } | |
1093 | |
1094 void TemplateTable::dup_x2() { | |
1095 transition(vtos, vtos); | |
1096 // stack: ..., a, b, c | |
1506 | 1097 __ load_ptr( 0, rax); // load c |
1098 __ load_ptr( 2, rcx); // load a | |
1099 __ store_ptr(2, rax); // store c in a | |
1100 __ push_ptr(rax); // push c | |
0 | 1101 // stack: ..., c, b, c, c |
1506 | 1102 __ load_ptr( 2, rax); // load b |
1103 __ store_ptr(2, rcx); // store a in b | |
0 | 1104 // stack: ..., c, a, c, c |
1506 | 1105 __ store_ptr(1, rax); // store b in c |
0 | 1106 // stack: ..., c, a, b, c |
1107 } | |
1108 | |
1109 void TemplateTable::dup2() { | |
1110 transition(vtos, vtos); | |
1111 // stack: ..., a, b | |
1506 | 1112 __ load_ptr(1, rax); // load a |
1113 __ push_ptr(rax); // push a | |
1114 __ load_ptr(1, rax); // load b | |
1115 __ push_ptr(rax); // push b | |
0 | 1116 // stack: ..., a, b, a, b |
1117 } | |
1118 | |
1119 void TemplateTable::dup2_x1() { | |
1120 transition(vtos, vtos); | |
1121 // stack: ..., a, b, c | |
1506 | 1122 __ load_ptr( 0, rcx); // load c |
1123 __ load_ptr( 1, rax); // load b | |
1124 __ push_ptr(rax); // push b | |
1125 __ push_ptr(rcx); // push c | |
0 | 1126 // stack: ..., a, b, c, b, c |
1506 | 1127 __ store_ptr(3, rcx); // store c in b |
0 | 1128 // stack: ..., a, c, c, b, c |
1506 | 1129 __ load_ptr( 4, rcx); // load a |
1130 __ store_ptr(2, rcx); // store a in 2nd c | |
0 | 1131 // stack: ..., a, c, a, b, c |
1506 | 1132 __ store_ptr(4, rax); // store b in a |
0 | 1133 // stack: ..., b, c, a, b, c |
1134 } | |
1135 | |
1136 void TemplateTable::dup2_x2() { | |
1137 transition(vtos, vtos); | |
1138 // stack: ..., a, b, c, d | |
1506 | 1139 __ load_ptr( 0, rcx); // load d |
1140 __ load_ptr( 1, rax); // load c | |
1141 __ push_ptr(rax); // push c | |
1142 __ push_ptr(rcx); // push d | |
0 | 1143 // stack: ..., a, b, c, d, c, d |
1506 | 1144 __ load_ptr( 4, rax); // load b |
1145 __ store_ptr(2, rax); // store b in d | |
1146 __ store_ptr(4, rcx); // store d in b | |
0 | 1147 // stack: ..., a, d, c, b, c, d |
1506 | 1148 __ load_ptr( 5, rcx); // load a |
1149 __ load_ptr( 3, rax); // load c | |
1150 __ store_ptr(3, rcx); // store a in c | |
1151 __ store_ptr(5, rax); // store c in a | |
0 | 1152 // stack: ..., c, d, a, b, c, d |
1153 } | |
1154 | |
1155 void TemplateTable::swap() { | |
1156 transition(vtos, vtos); | |
1157 // stack: ..., a, b | |
1506 | 1158 __ load_ptr( 1, rcx); // load a |
1159 __ load_ptr( 0, rax); // load b | |
1160 __ store_ptr(0, rcx); // store a in b | |
1161 __ store_ptr(1, rax); // store b in a | |
0 | 1162 // stack: ..., b, a |
1163 } | |
1164 | |
1165 void TemplateTable::iop2(Operation op) { | |
1166 transition(itos, itos); | |
1167 switch (op) { | |
1168 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
1169 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
1170 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
1171 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
1172 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
1173 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
1174 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
1175 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
1176 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
1177 default : ShouldNotReachHere(); | |
1178 } | |
1179 } | |
1180 | |
1181 void TemplateTable::lop2(Operation op) { | |
1182 transition(ltos, ltos); | |
1183 switch (op) { | |
1506 | 1184 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
1185 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
1186 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
1187 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
1188 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
1189 default : ShouldNotReachHere(); | |
0 | 1190 } |
1191 } | |
1192 | |
1193 void TemplateTable::idiv() { | |
1194 transition(itos, itos); | |
1195 __ movl(rcx, rax); | |
1196 __ pop_i(rax); | |
1197 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1198 // they are not equal, one could do a normal division (no correction | |
1199 // needed), which may speed up this implementation for the common case. | |
1200 // (see also JVM spec., p.243 & p.271) | |
1201 __ corrected_idivl(rcx); | |
1202 } | |
1203 | |
1204 void TemplateTable::irem() { | |
1205 transition(itos, itos); | |
1206 __ movl(rcx, rax); | |
1207 __ pop_i(rax); | |
1208 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1209 // they are not equal, one could do a normal division (no correction | |
1210 // needed), which may speed up this implementation for the common case. | |
1211 // (see also JVM spec., p.243 & p.271) | |
1212 __ corrected_idivl(rcx); | |
1213 __ movl(rax, rdx); | |
1214 } | |
1215 | |
1216 void TemplateTable::lmul() { | |
1217 transition(ltos, ltos); | |
1218 __ pop_l(rdx); | |
1219 __ imulq(rax, rdx); | |
1220 } | |
1221 | |
1222 void TemplateTable::ldiv() { | |
1223 transition(ltos, ltos); | |
304 | 1224 __ mov(rcx, rax); |
0 | 1225 __ pop_l(rax); |
1226 // generate explicit div0 check | |
1227 __ testq(rcx, rcx); | |
1228 __ jump_cc(Assembler::zero, | |
1229 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1230 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1231 // they are not equal, one could do a normal division (no correction | |
1232 // needed), which may speed up this implementation for the common case. | |
1233 // (see also JVM spec., p.243 & p.271) | |
1234 __ corrected_idivq(rcx); // kills rbx | |
1235 } | |
1236 | |
1237 void TemplateTable::lrem() { | |
1238 transition(ltos, ltos); | |
304 | 1239 __ mov(rcx, rax); |
0 | 1240 __ pop_l(rax); |
1241 __ testq(rcx, rcx); | |
1242 __ jump_cc(Assembler::zero, | |
1243 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1244 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1245 // they are not equal, one could do a normal division (no correction | |
1246 // needed), which may speed up this implementation for the common case. | |
1247 // (see also JVM spec., p.243 & p.271) | |
1248 __ corrected_idivq(rcx); // kills rbx | |
304 | 1249 __ mov(rax, rdx); |
0 | 1250 } |
1251 | |
1252 void TemplateTable::lshl() { | |
1253 transition(itos, ltos); | |
1254 __ movl(rcx, rax); // get shift count | |
1255 __ pop_l(rax); // get shift value | |
1256 __ shlq(rax); | |
1257 } | |
1258 | |
1259 void TemplateTable::lshr() { | |
1260 transition(itos, ltos); | |
1261 __ movl(rcx, rax); // get shift count | |
1262 __ pop_l(rax); // get shift value | |
1263 __ sarq(rax); | |
1264 } | |
1265 | |
1266 void TemplateTable::lushr() { | |
1267 transition(itos, ltos); | |
1268 __ movl(rcx, rax); // get shift count | |
1269 __ pop_l(rax); // get shift value | |
1270 __ shrq(rax); | |
1271 } | |
1272 | |
1273 void TemplateTable::fop2(Operation op) { | |
1274 transition(ftos, ftos); | |
1275 switch (op) { | |
1276 case add: | |
1277 __ addss(xmm0, at_rsp()); | |
1506 | 1278 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1279 break; |
1280 case sub: | |
1281 __ movflt(xmm1, xmm0); | |
1282 __ pop_f(xmm0); | |
1283 __ subss(xmm0, xmm1); | |
1284 break; | |
1285 case mul: | |
1286 __ mulss(xmm0, at_rsp()); | |
1506 | 1287 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1288 break; |
1289 case div: | |
1290 __ movflt(xmm1, xmm0); | |
1291 __ pop_f(xmm0); | |
1292 __ divss(xmm0, xmm1); | |
1293 break; | |
1294 case rem: | |
1295 __ movflt(xmm1, xmm0); | |
1296 __ pop_f(xmm0); | |
1297 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
1298 break; | |
1299 default: | |
1300 ShouldNotReachHere(); | |
1301 break; | |
1302 } | |
1303 } | |
1304 | |
1305 void TemplateTable::dop2(Operation op) { | |
1306 transition(dtos, dtos); | |
1307 switch (op) { | |
1308 case add: | |
1309 __ addsd(xmm0, at_rsp()); | |
1506 | 1310 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1311 break; |
1312 case sub: | |
1313 __ movdbl(xmm1, xmm0); | |
1314 __ pop_d(xmm0); | |
1315 __ subsd(xmm0, xmm1); | |
1316 break; | |
1317 case mul: | |
1318 __ mulsd(xmm0, at_rsp()); | |
1506 | 1319 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1320 break; |
1321 case div: | |
1322 __ movdbl(xmm1, xmm0); | |
1323 __ pop_d(xmm0); | |
1324 __ divsd(xmm0, xmm1); | |
1325 break; | |
1326 case rem: | |
1327 __ movdbl(xmm1, xmm0); | |
1328 __ pop_d(xmm0); | |
1329 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
1330 break; | |
1331 default: | |
1332 ShouldNotReachHere(); | |
1333 break; | |
1334 } | |
1335 } | |
1336 | |
1337 void TemplateTable::ineg() { | |
1338 transition(itos, itos); | |
1339 __ negl(rax); | |
1340 } | |
1341 | |
1342 void TemplateTable::lneg() { | |
1343 transition(ltos, ltos); | |
1344 __ negq(rax); | |
1345 } | |
1346 | |
1347 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
1348 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
1349 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
1350 // of 128-bits operands for SSE instructions. | |
1351 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
1352 // Store the value to a 128-bits operand. | |
1353 operand[0] = lo; | |
1354 operand[1] = hi; | |
1355 return operand; | |
1356 } | |
1357 | |
1358 // Buffer for 128-bits masks used by SSE instructions. | |
1359 static jlong float_signflip_pool[2*2]; | |
1360 static jlong double_signflip_pool[2*2]; | |
1361 | |
1362 void TemplateTable::fneg() { | |
1363 transition(ftos, ftos); | |
1364 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
1365 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
1366 } | |
1367 | |
1368 void TemplateTable::dneg() { | |
1369 transition(dtos, dtos); | |
1370 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
1371 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
1372 } | |
1373 | |
1374 void TemplateTable::iinc() { | |
1375 transition(vtos, vtos); | |
1376 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
1377 locals_index(rbx); | |
1378 __ addl(iaddress(rbx), rdx); | |
1379 } | |
1380 | |
1381 void TemplateTable::wide_iinc() { | |
1382 transition(vtos, vtos); | |
1383 __ movl(rdx, at_bcp(4)); // get constant | |
1384 locals_index_wide(rbx); | |
1385 __ bswapl(rdx); // swap bytes & sign-extend constant | |
1386 __ sarl(rdx, 16); | |
1387 __ addl(iaddress(rbx), rdx); | |
1388 // Note: should probably use only one movl to get both | |
1389 // the index and the constant -> fix this | |
1390 } | |
1391 | |
1392 void TemplateTable::convert() { | |
1393 // Checking | |
1394 #ifdef ASSERT | |
1395 { | |
1396 TosState tos_in = ilgl; | |
1397 TosState tos_out = ilgl; | |
1398 switch (bytecode()) { | |
1399 case Bytecodes::_i2l: // fall through | |
1400 case Bytecodes::_i2f: // fall through | |
1401 case Bytecodes::_i2d: // fall through | |
1402 case Bytecodes::_i2b: // fall through | |
1403 case Bytecodes::_i2c: // fall through | |
1404 case Bytecodes::_i2s: tos_in = itos; break; | |
1405 case Bytecodes::_l2i: // fall through | |
1406 case Bytecodes::_l2f: // fall through | |
1407 case Bytecodes::_l2d: tos_in = ltos; break; | |
1408 case Bytecodes::_f2i: // fall through | |
1409 case Bytecodes::_f2l: // fall through | |
1410 case Bytecodes::_f2d: tos_in = ftos; break; | |
1411 case Bytecodes::_d2i: // fall through | |
1412 case Bytecodes::_d2l: // fall through | |
1413 case Bytecodes::_d2f: tos_in = dtos; break; | |
1414 default : ShouldNotReachHere(); | |
1415 } | |
1416 switch (bytecode()) { | |
1417 case Bytecodes::_l2i: // fall through | |
1418 case Bytecodes::_f2i: // fall through | |
1419 case Bytecodes::_d2i: // fall through | |
1420 case Bytecodes::_i2b: // fall through | |
1421 case Bytecodes::_i2c: // fall through | |
1422 case Bytecodes::_i2s: tos_out = itos; break; | |
1423 case Bytecodes::_i2l: // fall through | |
1424 case Bytecodes::_f2l: // fall through | |
1425 case Bytecodes::_d2l: tos_out = ltos; break; | |
1426 case Bytecodes::_i2f: // fall through | |
1427 case Bytecodes::_l2f: // fall through | |
1428 case Bytecodes::_d2f: tos_out = ftos; break; | |
1429 case Bytecodes::_i2d: // fall through | |
1430 case Bytecodes::_l2d: // fall through | |
1431 case Bytecodes::_f2d: tos_out = dtos; break; | |
1432 default : ShouldNotReachHere(); | |
1433 } | |
1434 transition(tos_in, tos_out); | |
1435 } | |
1436 #endif // ASSERT | |
1437 | |
1438 static const int64_t is_nan = 0x8000000000000000L; | |
1439 | |
1440 // Conversion | |
1441 switch (bytecode()) { | |
1442 case Bytecodes::_i2l: | |
1443 __ movslq(rax, rax); | |
1444 break; | |
1445 case Bytecodes::_i2f: | |
1446 __ cvtsi2ssl(xmm0, rax); | |
1447 break; | |
1448 case Bytecodes::_i2d: | |
1449 __ cvtsi2sdl(xmm0, rax); | |
1450 break; | |
1451 case Bytecodes::_i2b: | |
1452 __ movsbl(rax, rax); | |
1453 break; | |
1454 case Bytecodes::_i2c: | |
1455 __ movzwl(rax, rax); | |
1456 break; | |
1457 case Bytecodes::_i2s: | |
1458 __ movswl(rax, rax); | |
1459 break; | |
1460 case Bytecodes::_l2i: | |
1461 __ movl(rax, rax); | |
1462 break; | |
1463 case Bytecodes::_l2f: | |
1464 __ cvtsi2ssq(xmm0, rax); | |
1465 break; | |
1466 case Bytecodes::_l2d: | |
1467 __ cvtsi2sdq(xmm0, rax); | |
1468 break; | |
1469 case Bytecodes::_f2i: | |
1470 { | |
1471 Label L; | |
1472 __ cvttss2sil(rax, xmm0); | |
1473 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1474 __ jcc(Assembler::notEqual, L); | |
1475 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
1476 __ bind(L); | |
1477 } | |
1478 break; | |
1479 case Bytecodes::_f2l: | |
1480 { | |
1481 Label L; | |
1482 __ cvttss2siq(rax, xmm0); | |
1483 // NaN or overflow/underflow? | |
1484 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1485 __ jcc(Assembler::notEqual, L); | |
1486 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
1487 __ bind(L); | |
1488 } | |
1489 break; | |
1490 case Bytecodes::_f2d: | |
1491 __ cvtss2sd(xmm0, xmm0); | |
1492 break; | |
1493 case Bytecodes::_d2i: | |
1494 { | |
1495 Label L; | |
1496 __ cvttsd2sil(rax, xmm0); | |
1497 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1498 __ jcc(Assembler::notEqual, L); | |
1499 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
1500 __ bind(L); | |
1501 } | |
1502 break; | |
1503 case Bytecodes::_d2l: | |
1504 { | |
1505 Label L; | |
1506 __ cvttsd2siq(rax, xmm0); | |
1507 // NaN or overflow/underflow? | |
1508 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1509 __ jcc(Assembler::notEqual, L); | |
1510 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
1511 __ bind(L); | |
1512 } | |
1513 break; | |
1514 case Bytecodes::_d2f: | |
1515 __ cvtsd2ss(xmm0, xmm0); | |
1516 break; | |
1517 default: | |
1518 ShouldNotReachHere(); | |
1519 } | |
1520 } | |
1521 | |
1522 void TemplateTable::lcmp() { | |
1523 transition(ltos, itos); | |
1524 Label done; | |
1525 __ pop_l(rdx); | |
1526 __ cmpq(rdx, rax); | |
1527 __ movl(rax, -1); | |
1528 __ jccb(Assembler::less, done); | |
1529 __ setb(Assembler::notEqual, rax); | |
1530 __ movzbl(rax, rax); | |
1531 __ bind(done); | |
1532 } | |
1533 | |
1534 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1535 Label done; | |
1536 if (is_float) { | |
1537 // XXX get rid of pop here, use ... reg, mem32 | |
1538 __ pop_f(xmm1); | |
1539 __ ucomiss(xmm1, xmm0); | |
1540 } else { | |
1541 // XXX get rid of pop here, use ... reg, mem64 | |
1542 __ pop_d(xmm1); | |
1543 __ ucomisd(xmm1, xmm0); | |
1544 } | |
1545 if (unordered_result < 0) { | |
1546 __ movl(rax, -1); | |
1547 __ jccb(Assembler::parity, done); | |
1548 __ jccb(Assembler::below, done); | |
1549 __ setb(Assembler::notEqual, rdx); | |
1550 __ movzbl(rax, rdx); | |
1551 } else { | |
1552 __ movl(rax, 1); | |
1553 __ jccb(Assembler::parity, done); | |
1554 __ jccb(Assembler::above, done); | |
1555 __ movl(rax, 0); | |
1556 __ jccb(Assembler::equal, done); | |
1557 __ decrementl(rax); | |
1558 } | |
1559 __ bind(done); | |
1560 } | |
1561 | |
1562 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1563 __ get_method(rcx); // rcx holds method | |
1564 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
1565 // holds bumped taken count | |
1566 | |
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1567 const ByteSize be_offset = Method::backedge_counter_offset() + |
0 | 1568 InvocationCounter::counter_offset(); |
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1569 const ByteSize inv_offset = Method::invocation_counter_offset() + |
0 | 1570 InvocationCounter::counter_offset(); |
1571 const int method_offset = frame::interpreter_frame_method_offset * wordSize; | |
1572 | |
1573 // Load up edx with the branch displacement | |
1574 __ movl(rdx, at_bcp(1)); | |
1575 __ bswapl(rdx); | |
1576 | |
1577 if (!is_wide) { | |
1578 __ sarl(rdx, 16); | |
1579 } | |
304 | 1580 __ movl2ptr(rdx, rdx); |
0 | 1581 |
1582 // Handle all the JSR stuff here, then exit. | |
1583 // It's much shorter and cleaner than intermingling with the non-JSR | |
605 | 1584 // normal-branch stuff occurring below. |
0 | 1585 if (is_jsr) { |
1586 // Pre-load the next target bytecode into rbx | |
1587 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
1588 | |
1589 // compute return address as bci in rax | |
304 | 1590 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1591 in_bytes(ConstMethod::codes_offset()))); |
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1592 __ subptr(rax, Address(rcx, Method::const_offset())); |
0 | 1593 // Adjust the bcp in r13 by the displacement in rdx |
304 | 1594 __ addptr(r13, rdx); |
0 | 1595 // jsr returns atos that is not an oop |
1596 __ push_i(rax); | |
1597 __ dispatch_only(vtos); | |
1598 return; | |
1599 } | |
1600 | |
1601 // Normal (non-jsr) branch handling | |
1602 | |
1603 // Adjust the bcp in r13 by the displacement in rdx | |
304 | 1604 __ addptr(r13, rdx); |
0 | 1605 |
1606 assert(UseLoopCounter || !UseOnStackReplacement, | |
1607 "on-stack-replacement requires loop counters"); | |
1608 Label backedge_counter_overflow; | |
1609 Label profile_method; | |
1610 Label dispatch; | |
1611 if (UseLoopCounter) { | |
1612 // increment backedge counter for backward branches | |
1613 // rax: MDO | |
1614 // ebx: MDO bumped taken-count | |
1615 // rcx: method | |
1616 // rdx: target offset | |
1617 // r13: target bcp | |
1618 // r14: locals pointer | |
1619 __ testl(rdx, rdx); // check if forward or backward branch | |
1620 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
1783 | 1621 if (TieredCompilation) { |
1622 Label no_mdo; | |
1623 int increment = InvocationCounter::count_increment; | |
1624 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1625 if (ProfileInterpreter) { | |
1626 // Are we profiling? | |
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1627 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
1783 | 1628 __ testptr(rbx, rbx); |
1629 __ jccb(Assembler::zero, no_mdo); | |
1630 // Increment the MDO backedge counter | |
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1631 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1632 in_bytes(InvocationCounter::counter_offset())); |
1633 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
1634 rax, false, Assembler::zero, &backedge_counter_overflow); | |
1635 __ jmp(dispatch); | |
0 | 1636 } |
1783 | 1637 __ bind(no_mdo); |
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1638 // Increment backedge counter in Method* |
1783 | 1639 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
1640 rax, false, Assembler::zero, &backedge_counter_overflow); | |
0 | 1641 } else { |
1783 | 1642 // increment counter |
1643 __ movl(rax, Address(rcx, be_offset)); // load backedge counter | |
1644 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
1645 __ movl(Address(rcx, be_offset), rax); // store counter | |
1646 | |
1647 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
1648 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits | |
1649 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
1650 | |
1651 if (ProfileInterpreter) { | |
1652 // Test to see if we should create a method data oop | |
0 | 1653 __ cmp32(rax, |
1783 | 1654 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
1655 __ jcc(Assembler::less, dispatch); | |
1656 | |
1657 // if no method data exists, go to profile method | |
1658 __ test_method_data_pointer(rax, profile_method); | |
1659 | |
1660 if (UseOnStackReplacement) { | |
1661 // check for overflow against ebx which is the MDO taken count | |
1662 __ cmp32(rbx, | |
1663 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1664 __ jcc(Assembler::below, dispatch); | |
1665 | |
1666 // When ProfileInterpreter is on, the backedge_count comes | |
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1667 // from the MethodData*, which value does not get reset on |
1783 | 1668 // the call to frequency_counter_overflow(). To avoid |
1669 // excessive calls to the overflow routine while the method is | |
1670 // being compiled, add a second test to make sure the overflow | |
1671 // function is called only once every overflow_frequency. | |
1672 const int overflow_frequency = 1024; | |
1673 __ andl(rbx, overflow_frequency - 1); | |
1674 __ jcc(Assembler::zero, backedge_counter_overflow); | |
1675 | |
1676 } | |
1677 } else { | |
1678 if (UseOnStackReplacement) { | |
1679 // check for overflow against eax, which is the sum of the | |
1680 // counters | |
1681 __ cmp32(rax, | |
1682 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1683 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
1684 | |
1685 } | |
0 | 1686 } |
1687 } | |
1688 __ bind(dispatch); | |
1689 } | |
1690 | |
1691 // Pre-load the next target bytecode into rbx | |
1692 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
1693 | |
1694 // continue with the bytecode @ target | |
1695 // eax: return bci for jsr's, unused otherwise | |
1696 // ebx: target bytecode | |
1697 // r13: target bcp | |
1698 __ dispatch_only(vtos); | |
1699 | |
1700 if (UseLoopCounter) { | |
1701 if (ProfileInterpreter) { | |
1702 // Out-of-line code to allocate method data oop. | |
1703 __ bind(profile_method); | |
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1704 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
0 | 1705 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1706 __ set_method_data_pointer_for_bcp(); |
0 | 1707 __ jmp(dispatch); |
1708 } | |
1709 | |
1710 if (UseOnStackReplacement) { | |
1711 // invocation counter overflow | |
1712 __ bind(backedge_counter_overflow); | |
304 | 1713 __ negptr(rdx); |
1714 __ addptr(rdx, r13); // branch bcp | |
0 | 1715 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
1716 __ call_VM(noreg, | |
1717 CAST_FROM_FN_PTR(address, | |
1718 InterpreterRuntime::frequency_counter_overflow), | |
1719 rdx); | |
1720 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
1721 | |
1722 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
1723 // ebx: target bytecode | |
1724 // rdx: scratch | |
1725 // r14: locals pointer | |
1726 // r13: bcp | |
304 | 1727 __ testptr(rax, rax); // test result |
0 | 1728 __ jcc(Assembler::zero, dispatch); // no osr if null |
1729 // nmethod may have been invalidated (VM may block upon call_VM return) | |
1730 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
1731 __ cmpl(rcx, InvalidOSREntryBci); | |
1732 __ jcc(Assembler::equal, dispatch); | |
1733 | |
1734 // We have the address of an on stack replacement routine in eax | |
1735 // We need to prepare to execute the OSR method. First we must | |
1736 // migrate the locals and monitors off of the stack. | |
1737 | |
304 | 1738 __ mov(r13, rax); // save the nmethod |
0 | 1739 |
1740 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
1741 | |
1742 // eax is OSR buffer, move it to expected parameter location | |
304 | 1743 __ mov(j_rarg0, rax); |
0 | 1744 |
1745 // We use j_rarg definitions here so that registers don't conflict as parameter | |
1746 // registers change across platforms as we are in the midst of a calling | |
1747 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
1748 | |
1749 const Register retaddr = j_rarg2; | |
1750 const Register sender_sp = j_rarg1; | |
1751 | |
1752 // pop the interpreter frame | |
304 | 1753 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
0 | 1754 __ leave(); // remove frame anchor |
304 | 1755 __ pop(retaddr); // get return address |
1756 __ mov(rsp, sender_sp); // set sp to sender sp | |
0 | 1757 // Ensure compiled code always sees stack at proper alignment |
304 | 1758 __ andptr(rsp, -(StackAlignmentInBytes)); |
0 | 1759 |
1760 // unlike x86 we need no specialized return from compiled code | |
1761 // to the interpreter or the call stub. | |
1762 | |
1763 // push the return address | |
304 | 1764 __ push(retaddr); |
0 | 1765 |
1766 // and begin the OSR nmethod | |
1767 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
1768 } | |
1769 } | |
1770 } | |
1771 | |
1772 | |
1773 void TemplateTable::if_0cmp(Condition cc) { | |
1774 transition(itos, vtos); | |
1775 // assume branch is more often taken than not (loops use backward branches) | |
1776 Label not_taken; | |
1777 __ testl(rax, rax); | |
1778 __ jcc(j_not(cc), not_taken); | |
1779 branch(false, false); | |
1780 __ bind(not_taken); | |
1781 __ profile_not_taken_branch(rax); | |
1782 } | |
1783 | |
1784 void TemplateTable::if_icmp(Condition cc) { | |
1785 transition(itos, vtos); | |
1786 // assume branch is more often taken than not (loops use backward branches) | |
1787 Label not_taken; | |
1788 __ pop_i(rdx); | |
1789 __ cmpl(rdx, rax); | |
1790 __ jcc(j_not(cc), not_taken); | |
1791 branch(false, false); | |
1792 __ bind(not_taken); | |
1793 __ profile_not_taken_branch(rax); | |
1794 } | |
1795 | |
1796 void TemplateTable::if_nullcmp(Condition cc) { | |
1797 transition(atos, vtos); | |
1798 // assume branch is more often taken than not (loops use backward branches) | |
1799 Label not_taken; | |
304 | 1800 __ testptr(rax, rax); |
0 | 1801 __ jcc(j_not(cc), not_taken); |
1802 branch(false, false); | |
1803 __ bind(not_taken); | |
1804 __ profile_not_taken_branch(rax); | |
1805 } | |
1806 | |
1807 void TemplateTable::if_acmp(Condition cc) { | |
1808 transition(atos, vtos); | |
1809 // assume branch is more often taken than not (loops use backward branches) | |
1810 Label not_taken; | |
1811 __ pop_ptr(rdx); | |
304 | 1812 __ cmpptr(rdx, rax); |
0 | 1813 __ jcc(j_not(cc), not_taken); |
1814 branch(false, false); | |
1815 __ bind(not_taken); | |
1816 __ profile_not_taken_branch(rax); | |
1817 } | |
1818 | |
1819 void TemplateTable::ret() { | |
1820 transition(vtos, vtos); | |
1821 locals_index(rbx); | |
304 | 1822 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
0 | 1823 __ profile_ret(rbx, rcx); |
1824 __ get_method(rax); | |
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1825 __ movptr(r13, Address(rax, Method::const_offset())); |
304 | 1826 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1827 ConstMethod::codes_offset())); |
0 | 1828 __ dispatch_next(vtos); |
1829 } | |
1830 | |
1831 void TemplateTable::wide_ret() { | |
1832 transition(vtos, vtos); | |
1833 locals_index_wide(rbx); | |
304 | 1834 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
0 | 1835 __ profile_ret(rbx, rcx); |
1836 __ get_method(rax); | |
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1837 __ movptr(r13, Address(rax, Method::const_offset())); |
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1838 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
0 | 1839 __ dispatch_next(vtos); |
1840 } | |
1841 | |
1842 void TemplateTable::tableswitch() { | |
1843 Label default_case, continue_execution; | |
1844 transition(itos, vtos); | |
1845 // align r13 | |
304 | 1846 __ lea(rbx, at_bcp(BytesPerInt)); |
1847 __ andptr(rbx, -BytesPerInt); | |
0 | 1848 // load lo & hi |
1849 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1850 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
1851 __ bswapl(rcx); | |
1852 __ bswapl(rdx); | |
1853 // check against lo & hi | |
1854 __ cmpl(rax, rcx); | |
1855 __ jcc(Assembler::less, default_case); | |
1856 __ cmpl(rax, rdx); | |
1857 __ jcc(Assembler::greater, default_case); | |
1858 // lookup dispatch offset | |
1859 __ subl(rax, rcx); | |
1860 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
1861 __ profile_switch_case(rax, rbx, rcx); | |
1862 // continue execution | |
1863 __ bind(continue_execution); | |
1864 __ bswapl(rdx); | |
304 | 1865 __ movl2ptr(rdx, rdx); |
0 | 1866 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1867 __ addptr(r13, rdx); |
0 | 1868 __ dispatch_only(vtos); |
1869 // handle default | |
1870 __ bind(default_case); | |
1871 __ profile_switch_default(rax); | |
1872 __ movl(rdx, Address(rbx, 0)); | |
1873 __ jmp(continue_execution); | |
1874 } | |
1875 | |
1876 void TemplateTable::lookupswitch() { | |
1877 transition(itos, itos); | |
1878 __ stop("lookupswitch bytecode should have been rewritten"); | |
1879 } | |
1880 | |
1881 void TemplateTable::fast_linearswitch() { | |
1882 transition(itos, vtos); | |
1883 Label loop_entry, loop, found, continue_execution; | |
1884 // bswap rax so we can avoid bswapping the table entries | |
1885 __ bswapl(rax); | |
1886 // align r13 | |
304 | 1887 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
1888 // this instruction (change offsets | |
1889 // below) | |
1890 __ andptr(rbx, -BytesPerInt); | |
0 | 1891 // set counter |
1892 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1893 __ bswapl(rcx); | |
1894 __ jmpb(loop_entry); | |
1895 // table search | |
1896 __ bind(loop); | |
1897 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
1898 __ jcc(Assembler::equal, found); | |
1899 __ bind(loop_entry); | |
1900 __ decrementl(rcx); | |
1901 __ jcc(Assembler::greaterEqual, loop); | |
1902 // default case | |
1903 __ profile_switch_default(rax); | |
1904 __ movl(rdx, Address(rbx, 0)); | |
1905 __ jmp(continue_execution); | |
1906 // entry found -> get offset | |
1907 __ bind(found); | |
1908 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
1909 __ profile_switch_case(rcx, rax, rbx); | |
1910 // continue execution | |
1911 __ bind(continue_execution); | |
1912 __ bswapl(rdx); | |
304 | 1913 __ movl2ptr(rdx, rdx); |
0 | 1914 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1915 __ addptr(r13, rdx); |
0 | 1916 __ dispatch_only(vtos); |
1917 } | |
1918 | |
1919 void TemplateTable::fast_binaryswitch() { | |
1920 transition(itos, vtos); | |
1921 // Implementation using the following core algorithm: | |
1922 // | |
1923 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1924 // // Binary search according to "Methodik des Programmierens" by | |
1925 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1926 // int i = 0; | |
1927 // int j = n; | |
1928 // while (i+1 < j) { | |
1929 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1930 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1931 // // where a stands for the array and assuming that the (inexisting) | |
1932 // // element a[n] is infinitely big. | |
1933 // int h = (i + j) >> 1; | |
1934 // // i < h < j | |
1935 // if (key < array[h].fast_match()) { | |
1936 // j = h; | |
1937 // } else { | |
1938 // i = h; | |
1939 // } | |
1940 // } | |
1941 // // R: a[i] <= key < a[i+1] or Q | |
1942 // // (i.e., if key is within array, i is the correct index) | |
1943 // return i; | |
1944 // } | |
1945 | |
1946 // Register allocation | |
1947 const Register key = rax; // already set (tosca) | |
1948 const Register array = rbx; | |
1949 const Register i = rcx; | |
1950 const Register j = rdx; | |
1951 const Register h = rdi; | |
1952 const Register temp = rsi; | |
1953 | |
1954 // Find array start | |
304 | 1955 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
1956 // get rid of this | |
1957 // instruction (change | |
1958 // offsets below) | |
1959 __ andptr(array, -BytesPerInt); | |
0 | 1960 |
1961 // Initialize i & j | |
1962 __ xorl(i, i); // i = 0; | |
1963 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
1964 | |
1965 // Convert j into native byteordering | |
1966 __ bswapl(j); | |
1967 | |
1968 // And start | |
1969 Label entry; | |
1970 __ jmp(entry); | |
1971 | |
1972 // binary search loop | |
1973 { | |
1974 Label loop; | |
1975 __ bind(loop); | |
1976 // int h = (i + j) >> 1; | |
1977 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
1978 __ sarl(h, 1); // h = (i + j) >> 1; | |
1979 // if (key < array[h].fast_match()) { | |
1980 // j = h; | |
1981 // } else { | |
1982 // i = h; | |
1983 // } | |
1984 // Convert array[h].match to native byte-ordering before compare | |
1985 __ movl(temp, Address(array, h, Address::times_8)); | |
1986 __ bswapl(temp); | |
1987 __ cmpl(key, temp); | |
1988 // j = h if (key < array[h].fast_match()) | |
1989 __ cmovl(Assembler::less, j, h); | |
1990 // i = h if (key >= array[h].fast_match()) | |
1991 __ cmovl(Assembler::greaterEqual, i, h); | |
1992 // while (i+1 < j) | |
1993 __ bind(entry); | |
1994 __ leal(h, Address(i, 1)); // i+1 | |
1995 __ cmpl(h, j); // i+1 < j | |
1996 __ jcc(Assembler::less, loop); | |
1997 } | |
1998 | |
1999 // end of binary search, result index is i (must check again!) | |
2000 Label default_case; | |
2001 // Convert array[i].match to native byte-ordering before compare | |
2002 __ movl(temp, Address(array, i, Address::times_8)); | |
2003 __ bswapl(temp); | |
2004 __ cmpl(key, temp); | |
2005 __ jcc(Assembler::notEqual, default_case); | |
2006 | |
2007 // entry found -> j = offset | |
2008 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
2009 __ profile_switch_case(i, key, array); | |
2010 __ bswapl(j); | |
304 | 2011 __ movl2ptr(j, j); |
0 | 2012 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2013 __ addptr(r13, j); |
0 | 2014 __ dispatch_only(vtos); |
2015 | |
2016 // default case -> j = default offset | |
2017 __ bind(default_case); | |
2018 __ profile_switch_default(i); | |
2019 __ movl(j, Address(array, -2 * BytesPerInt)); | |
2020 __ bswapl(j); | |
304 | 2021 __ movl2ptr(j, j); |
0 | 2022 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2023 __ addptr(r13, j); |
0 | 2024 __ dispatch_only(vtos); |
2025 } | |
2026 | |
2027 | |
2028 void TemplateTable::_return(TosState state) { | |
2029 transition(state, state); | |
2030 assert(_desc->calls_vm(), | |
2031 "inconsistent calls_vm information"); // call in remove_activation | |
2032 | |
2033 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2034 assert(state == vtos, "only valid state"); | |
304 | 2035 __ movptr(c_rarg1, aaddress(0)); |
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2036 __ load_klass(rdi, c_rarg1); |
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2037 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
0 | 2038 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
2039 Label skip_register_finalizer; | |
2040 __ jcc(Assembler::zero, skip_register_finalizer); | |
2041 | |
2042 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
2043 | |
2044 __ bind(skip_register_finalizer); | |
2045 } | |
2046 | |
2047 __ remove_activation(state, r13); | |
2048 __ jmp(r13); | |
2049 } | |
2050 | |
2051 // ---------------------------------------------------------------------------- | |
2052 // Volatile variables demand their effects be made known to all CPU's | |
2053 // in order. Store buffers on most chips allow reads & writes to | |
2054 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
2055 // without some kind of memory barrier (i.e., it's not sufficient that | |
2056 // the interpreter does not reorder volatile references, the hardware | |
2057 // also must not reorder them). | |
2058 // | |
2059 // According to the new Java Memory Model (JMM): | |
2060 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
2061 // writes act as aquire & release, so: | |
2062 // (2) A read cannot let unrelated NON-volatile memory refs that | |
2063 // happen after the read float up to before the read. It's OK for | |
2064 // non-volatile memory refs that happen before the volatile read to | |
2065 // float down below it. | |
2066 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
2067 // memory refs that happen BEFORE the write float down to after the | |
2068 // write. It's OK for non-volatile memory refs that happen after the | |
2069 // volatile write to float up before it. | |
2070 // | |
2071 // We only put in barriers around volatile refs (they are expensive), | |
2072 // not _between_ memory refs (that would require us to track the | |
2073 // flavor of the previous memory refs). Requirements (2) and (3) | |
2074 // require some barriers before volatile stores and after volatile | |
2075 // loads. These nearly cover requirement (1) but miss the | |
2076 // volatile-store-volatile-load case. This final case is placed after | |
2077 // volatile-stores although it could just as well go before | |
2078 // volatile-loads. | |
2079 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
2080 order_constraint) { | |
2081 // Helper function to insert a is-volatile test and memory barrier | |
2082 if (os::is_MP()) { // Not needed on single CPU | |
2083 __ membar(order_constraint); | |
2084 } | |
2085 } | |
2086 | |
1565 | 2087 void TemplateTable::resolve_cache_and_index(int byte_no, |
2088 Register Rcache, | |
2089 Register index, | |
2090 size_t index_size) { | |
0 | 2091 const Register temp = rbx; |
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2092 assert_different_registers(Rcache, index, temp); |
1565 | 2093 |
0 | 2094 Label resolved; |
1565 | 2095 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2096 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2097 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
1108 | 2098 __ jcc(Assembler::equal, resolved); |
0 | 2099 |
2100 // resolve first time through | |
2101 address entry; | |
2102 switch (bytecode()) { | |
2103 case Bytecodes::_getstatic: | |
2104 case Bytecodes::_putstatic: | |
2105 case Bytecodes::_getfield: | |
2106 case Bytecodes::_putfield: | |
2107 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
2108 break; | |
2109 case Bytecodes::_invokevirtual: | |
2110 case Bytecodes::_invokespecial: | |
2111 case Bytecodes::_invokestatic: | |
2112 case Bytecodes::_invokeinterface: | |
2113 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
2114 break; | |
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2115 case Bytecodes::_invokehandle: |
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2116 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2117 break; |
1108 | 2118 case Bytecodes::_invokedynamic: |
2119 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
2120 break; | |
0 | 2121 default: |
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2122 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
0 | 2123 break; |
2124 } | |
2125 __ movl(temp, (int) bytecode()); | |
2126 __ call_VM(noreg, entry, temp); | |
2127 | |
2128 // Update registers with resolved info | |
1565 | 2129 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2130 __ bind(resolved); |
2131 } | |
2132 | |
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2133 // The cache and index registers must be set before call |
0 | 2134 void TemplateTable::load_field_cp_cache_entry(Register obj, |
2135 Register cache, | |
2136 Register index, | |
2137 Register off, | |
2138 Register flags, | |
2139 bool is_static = false) { | |
2140 assert_different_registers(cache, index, flags, off); | |
2141 | |
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2142 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2143 // Field offset |
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2144 __ movptr(off, Address(cache, index, Address::times_ptr, |
304 | 2145 in_bytes(cp_base_offset + |
2146 ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2147 // Flags |
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2148 __ movl(flags, Address(cache, index, Address::times_ptr, |
0 | 2149 in_bytes(cp_base_offset + |
2150 ConstantPoolCacheEntry::flags_offset()))); | |
2151 | |
2152 // klass overwrite register | |
2153 if (is_static) { | |
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2154 __ movptr(obj, Address(cache, index, Address::times_ptr, |
304 | 2155 in_bytes(cp_base_offset + |
2156 ConstantPoolCacheEntry::f1_offset()))); | |
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2157 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2158 __ movptr(obj, Address(obj, mirror_offset)); |
0 | 2159 } |
2160 } | |
2161 | |
2162 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
2163 Register method, | |
2164 Register itable_index, | |
2165 Register flags, | |
2166 bool is_invokevirtual, | |
1565 | 2167 bool is_invokevfinal, /*unused*/ |
2168 bool is_invokedynamic) { | |
0 | 2169 // setup registers |
2170 const Register cache = rcx; | |
2171 const Register index = rdx; | |
2172 assert_different_registers(method, flags); | |
2173 assert_different_registers(method, cache, index); | |
2174 assert_different_registers(itable_index, flags); | |
2175 assert_different_registers(itable_index, cache, index); | |
2176 // determine constant pool cache field offsets | |
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2177 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2178 const int method_offset = in_bytes( |
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2179 ConstantPoolCache::base_offset() + |
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2180 ((byte_no == f2_byte) |
0 | 2181 ? ConstantPoolCacheEntry::f2_offset() |
2182 : ConstantPoolCacheEntry::f1_offset())); | |
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2183 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2184 ConstantPoolCacheEntry::flags_offset()); |
2185 // access constant pool cache fields | |
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2186 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2187 ConstantPoolCacheEntry::f2_offset()); |
2188 | |
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2189 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2190 resolve_cache_and_index(byte_no, cache, index, index_size); |
1565 | 2191 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2192 |
0 | 2193 if (itable_index != noreg) { |
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2194 // pick up itable or appendix index from f2 also: |
1565 | 2195 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
0 | 2196 } |
1565 | 2197 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
0 | 2198 } |
2199 | |
2200 // Correct values of the cache and index registers are preserved. | |
2201 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
2202 bool is_static, bool has_tos) { | |
2203 // do the JVMTI work here to avoid disturbing the register state below | |
2204 // We use c_rarg registers here because we want to use the register used in | |
2205 // the call to the VM | |
2206 if (JvmtiExport::can_post_field_access()) { | |
2207 // Check to see if a field access watch has been set before we | |
2208 // take the time to call into the VM. | |
2209 Label L1; | |
2210 assert_different_registers(cache, index, rax); | |
2211 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2212 __ testl(rax, rax); | |
2213 __ jcc(Assembler::zero, L1); | |
2214 | |
2215 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
2216 | |
2217 // cache entry pointer | |
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2218 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
0 | 2219 __ shll(c_rarg3, LogBytesPerWord); |
304 | 2220 __ addptr(c_rarg2, c_rarg3); |
0 | 2221 if (is_static) { |
2222 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
2223 } else { | |
304 | 2224 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
0 | 2225 __ verify_oop(c_rarg1); |
2226 } | |
2227 // c_rarg1: object pointer or NULL | |
2228 // c_rarg2: cache entry pointer | |
2229 // c_rarg3: jvalue object on the stack | |
2230 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
2231 InterpreterRuntime::post_field_access), | |
2232 c_rarg1, c_rarg2, c_rarg3); | |
2233 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2234 __ bind(L1); | |
2235 } | |
2236 } | |
2237 | |
2238 void TemplateTable::pop_and_check_object(Register r) { | |
2239 __ pop_ptr(r); | |
2240 __ null_check(r); // for field access must check obj. | |
2241 __ verify_oop(r); | |
2242 } | |
2243 | |
2244 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2245 transition(vtos, vtos); | |
2246 | |
2247 const Register cache = rcx; | |
2248 const Register index = rdx; | |
2249 const Register obj = c_rarg3; | |
2250 const Register off = rbx; | |
2251 const Register flags = rax; | |
2252 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
2253 | |
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2254 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2255 jvmti_post_field_access(cache, index, is_static, false); |
2256 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2257 | |
2258 if (!is_static) { | |
2259 // obj is on the stack | |
2260 pop_and_check_object(obj); | |
2261 } | |
2262 | |
2263 const Address field(obj, off, Address::times_1); | |
2264 | |
2265 Label Done, notByte, notInt, notShort, notChar, | |
2266 notLong, notFloat, notObj, notDouble; | |
2267 | |
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2268 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2269 // Make sure we don't need to mask edx after the above shift |
0 | 2270 assert(btos == 0, "change code, btos != 0"); |
2271 | |
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2272 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2273 __ jcc(Assembler::notZero, notByte); |
2274 // btos | |
2275 __ load_signed_byte(rax, field); | |
2276 __ push(btos); | |
2277 // Rewrite bytecode to be faster | |
2278 if (!is_static) { | |
2279 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
2280 } | |
2281 __ jmp(Done); | |
2282 | |
2283 __ bind(notByte); | |
2284 __ cmpl(flags, atos); | |
2285 __ jcc(Assembler::notEqual, notObj); | |
2286 // atos | |
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2287 __ load_heap_oop(rax, field); |
0 | 2288 __ push(atos); |
2289 if (!is_static) { | |
2290 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
2291 } | |
2292 __ jmp(Done); | |
2293 | |
2294 __ bind(notObj); | |
2295 __ cmpl(flags, itos); | |
2296 __ jcc(Assembler::notEqual, notInt); | |
2297 // itos | |
2298 __ movl(rax, field); | |
2299 __ push(itos); | |
2300 // Rewrite bytecode to be faster | |
2301 if (!is_static) { | |
2302 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
2303 } | |
2304 __ jmp(Done); | |
2305 | |
2306 __ bind(notInt); | |
2307 __ cmpl(flags, ctos); | |
2308 __ jcc(Assembler::notEqual, notChar); | |
2309 // ctos | |
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2310 __ load_unsigned_short(rax, field); |
0 | 2311 __ push(ctos); |
2312 // Rewrite bytecode to be faster | |
2313 if (!is_static) { | |
2314 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
2315 } | |
2316 __ jmp(Done); | |
2317 | |
2318 __ bind(notChar); | |
2319 __ cmpl(flags, stos); | |
2320 __ jcc(Assembler::notEqual, notShort); | |
2321 // stos | |
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2322 __ load_signed_short(rax, field); |
0 | 2323 __ push(stos); |
2324 // Rewrite bytecode to be faster | |
2325 if (!is_static) { | |
2326 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
2327 } | |
2328 __ jmp(Done); | |
2329 | |
2330 __ bind(notShort); | |
2331 __ cmpl(flags, ltos); | |
2332 __ jcc(Assembler::notEqual, notLong); | |
2333 // ltos | |
2334 __ movq(rax, field); | |
2335 __ push(ltos); | |
2336 // Rewrite bytecode to be faster | |
2337 if (!is_static) { | |
2338 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
2339 } | |
2340 __ jmp(Done); | |
2341 | |
2342 __ bind(notLong); | |
2343 __ cmpl(flags, ftos); | |
2344 __ jcc(Assembler::notEqual, notFloat); | |
2345 // ftos | |
2346 __ movflt(xmm0, field); | |
2347 __ push(ftos); | |
2348 // Rewrite bytecode to be faster | |
2349 if (!is_static) { | |
2350 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
2351 } | |
2352 __ jmp(Done); | |
2353 | |
2354 __ bind(notFloat); | |
2355 #ifdef ASSERT | |
2356 __ cmpl(flags, dtos); | |
2357 __ jcc(Assembler::notEqual, notDouble); | |
2358 #endif | |
2359 // dtos | |
2360 __ movdbl(xmm0, field); | |
2361 __ push(dtos); | |
2362 // Rewrite bytecode to be faster | |
2363 if (!is_static) { | |
2364 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
2365 } | |
2366 #ifdef ASSERT | |
2367 __ jmp(Done); | |
2368 | |
2369 __ bind(notDouble); | |
2370 __ stop("Bad state"); | |
2371 #endif | |
2372 | |
2373 __ bind(Done); | |
2374 // [jk] not needed currently | |
2375 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
2376 // Assembler::LoadStore)); | |
2377 } | |
2378 | |
2379 | |
2380 void TemplateTable::getfield(int byte_no) { | |
2381 getfield_or_static(byte_no, false); | |
2382 } | |
2383 | |
2384 void TemplateTable::getstatic(int byte_no) { | |
2385 getfield_or_static(byte_no, true); | |
2386 } | |
2387 | |
2388 // The registers cache and index expected to be set before call. | |
2389 // The function may destroy various registers, just not the cache and index registers. | |
2390 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
2391 transition(vtos, vtos); | |
2392 | |
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2393 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2394 |
2395 if (JvmtiExport::can_post_field_modification()) { | |
2396 // Check to see if a field modification watch has been set before | |
2397 // we take the time to call into the VM. | |
2398 Label L1; | |
2399 assert_different_registers(cache, index, rax); | |
2400 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2401 __ testl(rax, rax); | |
2402 __ jcc(Assembler::zero, L1); | |
2403 | |
2404 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
2405 | |
2406 if (is_static) { | |
2407 // Life is simple. Null out the object pointer. | |
2408 __ xorl(c_rarg1, c_rarg1); | |
2409 } else { | |
2410 // Life is harder. The stack holds the value on top, followed by | |
2411 // the object. We don't know the size of the value, though; it | |
2412 // could be one or two words depending on its type. As a result, | |
2413 // we must find the type to determine where the object is. | |
2414 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
2415 Address::times_8, | |
2416 in_bytes(cp_base_offset + | |
2417 ConstantPoolCacheEntry::flags_offset()))); | |
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2418 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2419 // Make sure we don't need to mask rcx after the above shift |
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2420 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 2421 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
0 | 2422 __ cmpl(c_rarg3, ltos); |
304 | 2423 __ cmovptr(Assembler::equal, |
2424 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
0 | 2425 __ cmpl(c_rarg3, dtos); |
304 | 2426 __ cmovptr(Assembler::equal, |
2427 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
0 | 2428 } |
2429 // cache entry pointer | |
304 | 2430 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
0 | 2431 __ shll(rscratch1, LogBytesPerWord); |
304 | 2432 __ addptr(c_rarg2, rscratch1); |
0 | 2433 // object (tos) |
304 | 2434 __ mov(c_rarg3, rsp); |
0 | 2435 // c_rarg1: object pointer set up above (NULL if static) |
2436 // c_rarg2: cache entry pointer | |
2437 // c_rarg3: jvalue object on the stack | |
2438 __ call_VM(noreg, | |
2439 CAST_FROM_FN_PTR(address, | |
2440 InterpreterRuntime::post_field_modification), | |
2441 c_rarg1, c_rarg2, c_rarg3); | |
2442 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2443 __ bind(L1); | |
2444 } | |
2445 } | |
2446 | |
2447 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2448 transition(vtos, vtos); | |
2449 | |
2450 const Register cache = rcx; | |
2451 const Register index = rdx; | |
2452 const Register obj = rcx; | |
2453 const Register off = rbx; | |
2454 const Register flags = rax; | |
2455 const Register bc = c_rarg3; | |
2456 | |
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2457 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2458 jvmti_post_field_mod(cache, index, is_static); |
2459 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2460 | |
2461 // [jk] not needed currently | |
2462 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2463 // Assembler::StoreStore)); | |
2464 | |
2465 Label notVolatile, Done; | |
2466 __ movl(rdx, flags); | |
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2467 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2468 __ andl(rdx, 0x1); |
2469 | |
2470 // field address | |
2471 const Address field(obj, off, Address::times_1); | |
2472 | |
2473 Label notByte, notInt, notShort, notChar, | |
2474 notLong, notFloat, notObj, notDouble; | |
2475 | |
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2476 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
0 | 2477 |
2478 assert(btos == 0, "change code, btos != 0"); | |
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2479 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2480 __ jcc(Assembler::notZero, notByte); |
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2481 |
0 | 2482 // btos |
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2483 { |
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2484 __ pop(btos); |
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2485 if (!is_static) pop_and_check_object(obj); |
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2486 __ movb(field, rax); |
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2487 if (!is_static) { |
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2488 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2489 } |
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2490 __ jmp(Done); |
0 | 2491 } |
2492 | |
2493 __ bind(notByte); | |
2494 __ cmpl(flags, atos); | |
2495 __ jcc(Assembler::notEqual, notObj); | |
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2496 |
0 | 2497 // atos |
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2498 { |
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2499 __ pop(atos); |
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2500 if (!is_static) pop_and_check_object(obj); |
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2501 // Store into the field |
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2502 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2503 if (!is_static) { |
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2504 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2505 } |
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2506 __ jmp(Done); |
0 | 2507 } |
2508 | |
2509 __ bind(notObj); | |
2510 __ cmpl(flags, itos); | |
2511 __ jcc(Assembler::notEqual, notInt); | |
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2512 |
0 | 2513 // itos |
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2514 { |
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2515 __ pop(itos); |
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2516 if (!is_static) pop_and_check_object(obj); |
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2517 __ movl(field, rax); |
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2518 if (!is_static) { |
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2519 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2520 } |
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2521 __ jmp(Done); |
0 | 2522 } |
2523 | |
2524 __ bind(notInt); | |
2525 __ cmpl(flags, ctos); | |
2526 __ jcc(Assembler::notEqual, notChar); | |
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2527 |
0 | 2528 // ctos |
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2529 { |
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2530 __ pop(ctos); |
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2531 if (!is_static) pop_and_check_object(obj); |
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2532 __ movw(field, rax); |
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2533 if (!is_static) { |
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2534 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2535 } |
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2536 __ jmp(Done); |
0 | 2537 } |
2538 | |
2539 __ bind(notChar); | |
2540 __ cmpl(flags, stos); | |
2541 __ jcc(Assembler::notEqual, notShort); | |
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2542 |
0 | 2543 // stos |
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2544 { |
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2545 __ pop(stos); |
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2546 if (!is_static) pop_and_check_object(obj); |
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2547 __ movw(field, rax); |
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2548 if (!is_static) { |
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2549 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
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2550 } |
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2551 __ jmp(Done); |
0 | 2552 } |
2553 | |
2554 __ bind(notShort); | |
2555 __ cmpl(flags, ltos); | |
2556 __ jcc(Assembler::notEqual, notLong); | |
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2557 |
0 | 2558 // ltos |
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2559 { |
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2560 __ pop(ltos); |
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2561 if (!is_static) pop_and_check_object(obj); |
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2562 __ movq(field, rax); |
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2563 if (!is_static) { |
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2564 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
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2565 } |
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2566 __ jmp(Done); |
0 | 2567 } |
2568 | |
2569 __ bind(notLong); | |
2570 __ cmpl(flags, ftos); | |
2571 __ jcc(Assembler::notEqual, notFloat); | |
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2572 |
0 | 2573 // ftos |
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2574 { |
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2575 __ pop(ftos); |
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2576 if (!is_static) pop_and_check_object(obj); |
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2577 __ movflt(field, xmm0); |
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2578 if (!is_static) { |
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2579 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
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2580 } |
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2581 __ jmp(Done); |
0 | 2582 } |
2583 | |
2584 __ bind(notFloat); | |
2585 #ifdef ASSERT | |
2586 __ cmpl(flags, dtos); | |
2587 __ jcc(Assembler::notEqual, notDouble); | |
2588 #endif | |
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2589 |
0 | 2590 // dtos |
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2591 { |
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2592 __ pop(dtos); |
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2593 if (!is_static) pop_and_check_object(obj); |
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2594 __ movdbl(field, xmm0); |
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2595 if (!is_static) { |
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2596 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
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2597 } |
0 | 2598 } |
2599 | |
2600 #ifdef ASSERT | |
2601 __ jmp(Done); | |
2602 | |
2603 __ bind(notDouble); | |
2604 __ stop("Bad state"); | |
2605 #endif | |
2606 | |
2607 __ bind(Done); | |
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2608 |
0 | 2609 // Check for volatile store |
2610 __ testl(rdx, rdx); | |
2611 __ jcc(Assembler::zero, notVolatile); | |
2612 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2613 Assembler::StoreStore)); | |
2614 __ bind(notVolatile); | |
2615 } | |
2616 | |
2617 void TemplateTable::putfield(int byte_no) { | |
2618 putfield_or_static(byte_no, false); | |
2619 } | |
2620 | |
2621 void TemplateTable::putstatic(int byte_no) { | |
2622 putfield_or_static(byte_no, true); | |
2623 } | |
2624 | |
2625 void TemplateTable::jvmti_post_fast_field_mod() { | |
2626 if (JvmtiExport::can_post_field_modification()) { | |
2627 // Check to see if a field modification watch has been set before | |
2628 // we take the time to call into the VM. | |
2629 Label L2; | |
2630 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2631 __ testl(c_rarg3, c_rarg3); | |
2632 __ jcc(Assembler::zero, L2); | |
2633 __ pop_ptr(rbx); // copy the object pointer from tos | |
2634 __ verify_oop(rbx); | |
2635 __ push_ptr(rbx); // put the object pointer back on tos | |
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2636 // Save tos values before call_VM() clobbers them. Since we have |
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2637 // to do it for every data type, we use the saved values as the |
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2638 // jvalue object. |
0 | 2639 switch (bytecode()) { // load values into the jvalue object |
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2640 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
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2641 case Bytecodes::_fast_bputfield: // fall through |
0 | 2642 case Bytecodes::_fast_sputfield: // fall through |
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2643 case Bytecodes::_fast_cputfield: // fall through |
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2644 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
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2645 case Bytecodes::_fast_dputfield: __ push_d(); break; |
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2646 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2647 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
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2648 |
0 | 2649 default: |
2650 ShouldNotReachHere(); | |
2651 } | |
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2652 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
0 | 2653 // access constant pool cache entry |
2654 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
2655 __ verify_oop(rbx); | |
2656 // rbx: object pointer copied above | |
2657 // c_rarg2: cache entry pointer | |
2658 // c_rarg3: jvalue object on the stack | |
2659 __ call_VM(noreg, | |
2660 CAST_FROM_FN_PTR(address, | |
2661 InterpreterRuntime::post_field_modification), | |
2662 rbx, c_rarg2, c_rarg3); | |
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2663 |
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2664 switch (bytecode()) { // restore tos values |
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2665 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
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2666 case Bytecodes::_fast_bputfield: // fall through |
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2667 case Bytecodes::_fast_sputfield: // fall through |
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2668 case Bytecodes::_fast_cputfield: // fall through |
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2669 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
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2670 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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2671 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2672 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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2673 } |
0 | 2674 __ bind(L2); |
2675 } | |
2676 } | |
2677 | |
2678 void TemplateTable::fast_storefield(TosState state) { | |
2679 transition(state, vtos); | |
2680 | |
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2681 ByteSize base = ConstantPoolCache::base_offset(); |
0 | 2682 |
2683 jvmti_post_fast_field_mod(); | |
2684 | |
2685 // access constant pool cache | |
2686 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2687 | |
2688 // test for volatile with rdx | |
2689 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
2690 in_bytes(base + | |
2691 ConstantPoolCacheEntry::flags_offset()))); | |
2692 | |
2693 // replace index with field offset from cache entry | |
304 | 2694 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
2695 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2696 |
2697 // [jk] not needed currently | |
2698 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2699 // Assembler::StoreStore)); | |
2700 | |
2701 Label notVolatile; | |
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2702 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2703 __ andl(rdx, 0x1); |
2704 | |
2705 // Get object from stack | |
2706 pop_and_check_object(rcx); | |
2707 | |
2708 // field address | |
2709 const Address field(rcx, rbx, Address::times_1); | |
2710 | |
2711 // access field | |
2712 switch (bytecode()) { | |
2713 case Bytecodes::_fast_aputfield: | |
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2714 do_oop_store(_masm, field, rax, _bs->kind(), false); |
0 | 2715 break; |
2716 case Bytecodes::_fast_lputfield: | |
2717 __ movq(field, rax); | |
2718 break; | |
2719 case Bytecodes::_fast_iputfield: | |
2720 __ movl(field, rax); | |
2721 break; | |
2722 case Bytecodes::_fast_bputfield: | |
2723 __ movb(field, rax); | |
2724 break; | |
2725 case Bytecodes::_fast_sputfield: | |
2726 // fall through | |
2727 case Bytecodes::_fast_cputfield: | |
2728 __ movw(field, rax); | |
2729 break; | |
2730 case Bytecodes::_fast_fputfield: | |
2731 __ movflt(field, xmm0); | |
2732 break; | |
2733 case Bytecodes::_fast_dputfield: | |
2734 __ movdbl(field, xmm0); | |
2735 break; | |
2736 default: | |
2737 ShouldNotReachHere(); | |
2738 } | |
2739 | |
2740 // Check for volatile store | |
2741 __ testl(rdx, rdx); | |
2742 __ jcc(Assembler::zero, notVolatile); | |
2743 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2744 Assembler::StoreStore)); | |
2745 __ bind(notVolatile); | |
2746 } | |
2747 | |
2748 | |
2749 void TemplateTable::fast_accessfield(TosState state) { | |
2750 transition(atos, state); | |
2751 | |
2752 // Do the JVMTI work here to avoid disturbing the register state below | |
2753 if (JvmtiExport::can_post_field_access()) { | |
2754 // Check to see if a field access watch has been set before we | |
2755 // take the time to call into the VM. | |
2756 Label L1; | |
2757 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2758 __ testl(rcx, rcx); | |
2759 __ jcc(Assembler::zero, L1); | |
2760 // access constant pool cache entry | |
2761 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
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2762 __ verify_oop(rax); |
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2763 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
304 | 2764 __ mov(c_rarg1, rax); |
0 | 2765 // c_rarg1: object pointer copied above |
2766 // c_rarg2: cache entry pointer | |
2767 __ call_VM(noreg, | |
2768 CAST_FROM_FN_PTR(address, | |
2769 InterpreterRuntime::post_field_access), | |
2770 c_rarg1, c_rarg2); | |
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2771 __ pop_ptr(rax); // restore object pointer |
0 | 2772 __ bind(L1); |
2773 } | |
2774 | |
2775 // access constant pool cache | |
2776 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2777 // replace index with field offset from cache entry | |
2778 // [jk] not needed currently | |
2779 // if (os::is_MP()) { | |
2780 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
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2781 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2782 // ConstantPoolCacheEntry::flags_offset()))); |
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2783 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2784 // __ andl(rdx, 0x1); |
2785 // } | |
304 | 2786 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
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2787 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2788 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2789 |
2790 // rax: object | |
2791 __ verify_oop(rax); | |
2792 __ null_check(rax); | |
2793 Address field(rax, rbx, Address::times_1); | |
2794 | |
2795 // access field | |
2796 switch (bytecode()) { | |
2797 case Bytecodes::_fast_agetfield: | |
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2798 __ load_heap_oop(rax, field); |
0 | 2799 __ verify_oop(rax); |
2800 break; | |
2801 case Bytecodes::_fast_lgetfield: | |
2802 __ movq(rax, field); | |
2803 break; | |
2804 case Bytecodes::_fast_igetfield: | |
2805 __ movl(rax, field); | |
2806 break; | |
2807 case Bytecodes::_fast_bgetfield: | |
2808 __ movsbl(rax, field); | |
2809 break; | |
2810 case Bytecodes::_fast_sgetfield: | |
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2811 __ load_signed_short(rax, field); |
0 | 2812 break; |
2813 case Bytecodes::_fast_cgetfield: | |
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2814 __ load_unsigned_short(rax, field); |
0 | 2815 break; |
2816 case Bytecodes::_fast_fgetfield: | |
2817 __ movflt(xmm0, field); | |
2818 break; | |
2819 case Bytecodes::_fast_dgetfield: | |
2820 __ movdbl(xmm0, field); | |
2821 break; | |
2822 default: | |
2823 ShouldNotReachHere(); | |
2824 } | |
2825 // [jk] not needed currently | |
2826 // if (os::is_MP()) { | |
2827 // Label notVolatile; | |
2828 // __ testl(rdx, rdx); | |
2829 // __ jcc(Assembler::zero, notVolatile); | |
2830 // __ membar(Assembler::LoadLoad); | |
2831 // __ bind(notVolatile); | |
2832 //}; | |
2833 } | |
2834 | |
2835 void TemplateTable::fast_xaccess(TosState state) { | |
2836 transition(vtos, state); | |
2837 | |
2838 // get receiver | |
304 | 2839 __ movptr(rax, aaddress(0)); |
0 | 2840 // access constant pool cache |
2841 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
304 | 2842 __ movptr(rbx, |
2843 Address(rcx, rdx, Address::times_8, | |
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2844 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2845 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2846 // make sure exception is reported in correct bcp range (getfield is |
2847 // next instruction) | |
304 | 2848 __ increment(r13); |
0 | 2849 __ null_check(rax); |
2850 switch (state) { | |
2851 case itos: | |
2852 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
2853 break; | |
2854 case atos: | |
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2855 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
0 | 2856 __ verify_oop(rax); |
2857 break; | |
2858 case ftos: | |
2859 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
2860 break; | |
2861 default: | |
2862 ShouldNotReachHere(); | |
2863 } | |
2864 | |
2865 // [jk] not needed currently | |
2866 // if (os::is_MP()) { | |
2867 // Label notVolatile; | |
2868 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
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2869 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2870 // ConstantPoolCacheEntry::flags_offset()))); |
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2871 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2872 // __ testl(rdx, 0x1); |
2873 // __ jcc(Assembler::zero, notVolatile); | |
2874 // __ membar(Assembler::LoadLoad); | |
2875 // __ bind(notVolatile); | |
2876 // } | |
2877 | |
304 | 2878 __ decrement(r13); |
0 | 2879 } |
2880 | |
2881 | |
2882 | |
2883 //----------------------------------------------------------------------------- | |
2884 // Calls | |
2885 | |
2886 void TemplateTable::count_calls(Register method, Register temp) { | |
2887 // implemented elsewhere | |
2888 ShouldNotReachHere(); | |
2889 } | |
2890 | |
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2891 void TemplateTable::prepare_invoke(int byte_no, |
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2892 Register method, // linked method (or i-klass) |
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2893 Register index, // itable index, MethodType, etc. |
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2894 Register recv, // if caller wants to see it |
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2895 Register flags // if caller wants to test it |
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2896 ) { |
0 | 2897 // determine flags |
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2898 const Bytecodes::Code code = bytecode(); |
0 | 2899 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
1108 | 2900 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2901 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
0 | 2902 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
2903 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
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2904 const bool load_receiver = (recv != noreg); |
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2905 const bool save_flags = (flags != noreg); |
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2906 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2907 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
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2908 assert(flags == noreg || flags == rdx, ""); |
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2909 assert(recv == noreg || recv == rcx, ""); |
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2910 |
0 | 2911 // setup registers & access constant pool cache |
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2912 if (recv == noreg) recv = rcx; |
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2913 if (flags == noreg) flags = rdx; |
0 | 2914 assert_different_registers(method, index, recv, flags); |
2915 | |
2916 // save 'interpreter return address' | |
2917 __ save_bcp(); | |
2918 | |
1565 | 2919 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
0 | 2920 |
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2921 // maybe push appendix to arguments (just before return address) |
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2922 if (is_invokedynamic || is_invokehandle) { |
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2923 Label L_no_push; |
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2924 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
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2925 __ jcc(Assembler::zero, L_no_push); |
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2926 // Push the appendix as a trailing parameter. |
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2927 // This must be done before we get the receiver, |
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2928 // since the parameter_size includes it. |
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2929 __ push(rbx); |
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2930 __ mov(rbx, index); |
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2931 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2932 __ load_resolved_reference_at_index(index, rbx); |
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2933 __ pop(rbx); |
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2934 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2935 __ bind(L_no_push); |
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2936 } |
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2937 |
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2938 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2939 // Note: no return address pushed yet |
0 | 2940 if (load_receiver) { |
2941 __ movl(recv, flags); | |
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2942 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2943 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2944 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2945 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
1304 | 2946 __ movptr(recv, recv_addr); |
2947 __ verify_oop(recv); | |
0 | 2948 } |
2949 | |
2950 if (save_flags) { | |
2951 __ movl(r13, flags); | |
2952 } | |
2953 | |
2954 // compute return type | |
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2955 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2956 // Make sure we don't need to mask flags after the above shift |
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2957 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2958 // load return address |
2959 { | |
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2960 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2961 (address)Interpreter::return_5_addrs_by_index_table() : |
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2962 (address)Interpreter::return_3_addrs_by_index_table(); |
1108 | 2963 ExternalAddress table(table_addr); |
2964 __ lea(rscratch1, table); | |
2965 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
0 | 2966 } |
2967 | |
2968 // push return address | |
304 | 2969 __ push(flags); |
0 | 2970 |
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2971 // Restore flags value from the constant pool cache, and restore rsi |
0 | 2972 // for later null checks. r13 is the bytecode pointer |
2973 if (save_flags) { | |
2974 __ movl(flags, r13); | |
2975 __ restore_bcp(); | |
2976 } | |
2977 } | |
2978 | |
2979 | |
2980 void TemplateTable::invokevirtual_helper(Register index, | |
2981 Register recv, | |
2982 Register flags) { | |
1783 | 2983 // Uses temporary registers rax, rdx |
2984 assert_different_registers(index, recv, rax, rdx); | |
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2985 assert(index == rbx, ""); |
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2986 assert(recv == rcx, ""); |
0 | 2987 |
2988 // Test for an invoke of a final method | |
2989 Label notFinal; | |
2990 __ movl(rax, flags); | |
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2991 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
0 | 2992 __ jcc(Assembler::zero, notFinal); |
2993 | |
2994 const Register method = index; // method must be rbx | |
2995 assert(method == rbx, | |
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2996 "Method* must be rbx for interpreter calling convention"); |
0 | 2997 |
2998 // do the call - the index is actually the method to call | |
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2999 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
0 | 3000 |
3001 // It's final, need a null check here! | |
3002 __ null_check(recv); | |
3003 | |
3004 // profile this call | |
3005 __ profile_final_call(rax); | |
3006 | |
3007 __ jump_from_interpreted(method, rax); | |
3008 | |
3009 __ bind(notFinal); | |
3010 | |
3011 // get receiver klass | |
3012 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
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3013 __ load_klass(rax, recv); |
0 | 3014 |
3015 // profile this call | |
3016 __ profile_virtual_call(rax, r14, rdx); | |
3017 | |
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3018 // get target Method* & entry point |
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3019 __ lookup_virtual_method(rax, index, method); |
0 | 3020 __ jump_from_interpreted(method, rdx); |
3021 } | |
3022 | |
3023 | |
3024 void TemplateTable::invokevirtual(int byte_no) { | |
3025 transition(vtos, vtos); | |
1565 | 3026 assert(byte_no == f2_byte, "use this argument"); |
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3027 prepare_invoke(byte_no, |
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|
3028 rbx, // method or vtable index |
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diff
changeset
|
3029 noreg, // unused itable index |
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|
3030 rcx, rdx); // recv, flags |
0 | 3031 |
3032 // rbx: index | |
3033 // rcx: receiver | |
3034 // rdx: flags | |
3035 | |
3036 invokevirtual_helper(rbx, rcx, rdx); | |
3037 } | |
3038 | |
3039 | |
3040 void TemplateTable::invokespecial(int byte_no) { | |
3041 transition(vtos, vtos); | |
1565 | 3042 assert(byte_no == f1_byte, "use this argument"); |
6725
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3043 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
6266
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changeset
|
3044 rcx); // get receiver also for null check |
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diff
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|
3045 __ verify_oop(rcx); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3046 __ null_check(rcx); |
0 | 3047 // do the call |
3048 __ profile_call(rax); | |
3049 __ jump_from_interpreted(rbx, rax); | |
3050 } | |
3051 | |
3052 | |
3053 void TemplateTable::invokestatic(int byte_no) { | |
3054 transition(vtos, vtos); | |
1565 | 3055 assert(byte_no == f1_byte, "use this argument"); |
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changeset
|
3056 prepare_invoke(byte_no, rbx); // get f1 Method* |
0 | 3057 // do the call |
3058 __ profile_call(rax); | |
3059 __ jump_from_interpreted(rbx, rax); | |
3060 } | |
3061 | |
3062 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3063 transition(vtos, vtos); | |
1565 | 3064 assert(byte_no == f2_byte, "use this argument"); |
0 | 3065 __ stop("fast_invokevfinal not used on amd64"); |
3066 } | |
3067 | |
3068 void TemplateTable::invokeinterface(int byte_no) { | |
3069 transition(vtos, vtos); | |
1565 | 3070 assert(byte_no == f1_byte, "use this argument"); |
6725
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|
3071 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
6266
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|
3072 rcx, rdx); // recv, flags |
1d7922586cf6
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|
3073 |
1d7922586cf6
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|
3074 // rax: interface klass (from f1) |
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|
3075 // rbx: itable index (from f2) |
0 | 3076 // rcx: receiver |
3077 // rdx: flags | |
3078 | |
3079 // Special case of invokeinterface called for virtual method of | |
3080 // java.lang.Object. See cpCacheOop.cpp for details. | |
3081 // This code isn't produced by javac, but could be produced by | |
3082 // another compliant java compiler. | |
3083 Label notMethod; | |
3084 __ movl(r14, rdx); | |
6266
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changeset
|
3085 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
0 | 3086 __ jcc(Assembler::zero, notMethod); |
3087 | |
3088 invokevirtual_helper(rbx, rcx, rdx); | |
3089 __ bind(notMethod); | |
3090 | |
3091 // Get receiver klass into rdx - also a null check | |
6266
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|
3092 __ restore_locals(); // restore r14 |
1d7922586cf6
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changeset
|
3093 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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0
diff
changeset
|
3094 __ load_klass(rdx, rcx); |
0 | 3095 |
3096 // profile this call | |
3097 __ profile_virtual_call(rdx, r13, r14); | |
3098 | |
623
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3099 Label no_such_interface, no_such_method; |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3100 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3101 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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changeset
|
3102 rdx, rax, rbx, |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3103 // outputs: method, scan temp. reg |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3104 rbx, r13, |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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diff
changeset
|
3105 no_such_interface); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3106 |
6725
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changeset
|
3107 // rbx: Method* to call |
623
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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diff
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|
3108 // rcx: receiver |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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diff
changeset
|
3109 // Check for abstract method error |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
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diff
changeset
|
3110 // Note: This should be done more efficiently via a throw_abstract_method_error |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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diff
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|
3111 // interpreter entry point and a conditional jump to it in case of a null |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3112 // method. |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3113 __ testptr(rbx, rbx); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
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|
3114 __ jcc(Assembler::zero, no_such_method); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3115 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3116 // do the call |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3117 // rcx: receiver |
6725
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3118 // rbx,: Method* |
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3119 __ jump_from_interpreted(rbx, rdx); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3120 __ should_not_reach_here(); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3121 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3122 // exception handling code follows... |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3123 // note: must restore interpreter registers to canonical |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3124 // state for exception handling to work correctly! |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3125 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3126 __ bind(no_such_method); |
0 | 3127 // throw exception |
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3128 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3129 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3130 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3131 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3132 // the call_VM checks for exception, so we should never return here. |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3133 __ should_not_reach_here(); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3134 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3135 __ bind(no_such_interface); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3136 // throw exception |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3137 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3138 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3139 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
0 | 3140 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
3141 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
3142 // the call_VM checks for exception, so we should never return here. | |
3143 __ should_not_reach_here(); | |
3144 } | |
3145 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3146 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3147 void TemplateTable::invokehandle(int byte_no) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3148 transition(vtos, vtos); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3149 assert(byte_no == f1_byte, "use this argument"); |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3150 const Register rbx_method = rbx; |
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
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|
3151 const Register rax_mtype = rax; |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3152 const Register rcx_recv = rcx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
changeset
|
3153 const Register rdx_flags = rdx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
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diff
changeset
|
3154 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3155 if (!EnableInvokeDynamic) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3156 // rewriter does not generate this bytecode |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3157 __ should_not_reach_here(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3158 return; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3159 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3160 |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3161 prepare_invoke(byte_no, rbx_method, rax_mtype, rcx_recv); |
6740
75f33eecc1b3
7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents:
6725
diff
changeset
|
3162 __ verify_method_ptr(rbx_method); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3163 __ verify_oop(rcx_recv); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3164 __ null_check(rcx_recv); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
changeset
|
3165 |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3166 // rax: MethodType object (from cpool->resolved_references[f1], if necessary) |
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3167 // rbx: MH.invokeExact_MT method (from f2) |
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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6740
diff
changeset
|
3168 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3169 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3170 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3171 // FIXME: profile the LambdaForm also |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3172 __ profile_final_call(rax); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3173 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3174 __ jump_from_interpreted(rbx_method, rdx); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3175 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3176 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3177 |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3178 void TemplateTable::invokedynamic(int byte_no) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
3179 transition(vtos, vtos); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
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changeset
|
3180 assert(byte_no == f1_byte, "use this argument"); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3181 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
diff
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|
3182 if (!EnableInvokeDynamic) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
diff
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|
3183 // We should not encounter this bytecode if !EnableInvokeDynamic. |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
623
diff
changeset
|
3184 // The verifier will stop it. However, if we get past the verifier, |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
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|
3185 // this will stop the thread in a reasonable way, without crashing the JVM. |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3186 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3187 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3188 // the call_VM checks for exception, so we should never return here. |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
623
diff
changeset
|
3189 __ should_not_reach_here(); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3190 return; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3191 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3192 |
6266
1d7922586cf6
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5995
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|
3193 const Register rbx_method = rbx; |
1d7922586cf6
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5995
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|
3194 const Register rax_callsite = rax; |
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3195 |
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3196 prepare_invoke(byte_no, rbx_method, rax_callsite); |
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3197 |
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3198 // rax: CallSite object (from cpool->resolved_references[f1]) |
6266
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3199 // rbx: MH.linkToCallSite method (from f2) |
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3200 |
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3201 // Note: rax_callsite is already pushed by prepare_invoke |
1846 | 3202 |
3279
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3203 // %%% should make a type profile for any invokedynamic that takes a ref argument |
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3204 // profile this call |
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3205 __ profile_call(r13); |
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|
3206 |
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3207 __ verify_oop(rax_callsite); |
6266
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3208 |
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3209 __ jump_from_interpreted(rbx_method, rdx); |
726
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3210 } |
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3211 |
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3212 |
0 | 3213 //----------------------------------------------------------------------------- |
3214 // Allocation | |
3215 | |
3216 void TemplateTable::_new() { | |
3217 transition(vtos, atos); | |
3218 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
3219 Label slow_case; | |
3220 Label done; | |
3221 Label initialize_header; | |
3222 Label initialize_object; // including clearing the fields | |
3223 Label allocate_shared; | |
3224 | |
3225 __ get_cpool_and_tags(rsi, rax); | |
1681
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3226 // Make sure the class we're about to instantiate has been resolved. |
6725
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3227 // This is done before loading InstanceKlass to be consistent with the order |
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3228 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
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3229 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 3230 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
3231 JVM_CONSTANT_Class); | |
3232 __ jcc(Assembler::notEqual, slow_case); | |
3233 | |
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3234 // get InstanceKlass |
1681
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3235 __ movptr(rsi, Address(rsi, rdx, |
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3236 Address::times_8, sizeof(ConstantPool))); |
1681
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3237 |
0 | 3238 // make sure klass is initialized & doesn't have finalizer |
3239 // make sure klass is fully initialized | |
4739
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3240 __ cmpb(Address(rsi, |
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3241 InstanceKlass::init_state_offset()), |
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3242 InstanceKlass::fully_initialized); |
0 | 3243 __ jcc(Assembler::notEqual, slow_case); |
3244 | |
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3245 // get instance_size in InstanceKlass (scaled to a count of bytes) |
0 | 3246 __ movl(rdx, |
3247 Address(rsi, | |
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3248 Klass::layout_helper_offset())); |
0 | 3249 // test to see if it has a finalizer or is malformed in some way |
3250 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
3251 __ jcc(Assembler::notZero, slow_case); | |
3252 | |
3253 // Allocate the instance | |
3254 // 1) Try to allocate in the TLAB | |
3255 // 2) if fail and the object is large allocate in the shared Eden | |
3256 // 3) if the above fails (or is not applicable), go to a slow case | |
3257 // (creates a new TLAB, etc.) | |
3258 | |
3259 const bool allow_shared_alloc = | |
3260 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
3261 | |
3262 if (UseTLAB) { | |
304 | 3263 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
3264 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
3265 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
0 | 3266 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
304 | 3267 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
0 | 3268 if (ZeroTLAB) { |
3269 // the fields have been already cleared | |
3270 __ jmp(initialize_header); | |
3271 } else { | |
3272 // initialize both the header and fields | |
3273 __ jmp(initialize_object); | |
3274 } | |
3275 } | |
3276 | |
3277 // Allocation in the shared Eden, if allowed. | |
3278 // | |
3279 // rdx: instance size in bytes | |
3280 if (allow_shared_alloc) { | |
3281 __ bind(allocate_shared); | |
3282 | |
342
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3283 ExternalAddress top((address)Universe::heap()->top_addr()); |
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3284 ExternalAddress end((address)Universe::heap()->end_addr()); |
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3285 |
0 | 3286 const Register RtopAddr = rscratch1; |
3287 const Register RendAddr = rscratch2; | |
3288 | |
3289 __ lea(RtopAddr, top); | |
3290 __ lea(RendAddr, end); | |
304 | 3291 __ movptr(rax, Address(RtopAddr, 0)); |
0 | 3292 |
3293 // For retries rax gets set by cmpxchgq | |
3294 Label retry; | |
3295 __ bind(retry); | |
304 | 3296 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
3297 __ cmpptr(rbx, Address(RendAddr, 0)); | |
0 | 3298 __ jcc(Assembler::above, slow_case); |
3299 | |
3300 // Compare rax with the top addr, and if still equal, store the new | |
3301 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
3302 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
3303 // | |
3304 // rax: object begin | |
3305 // rbx: object end | |
3306 // rdx: instance size in bytes | |
3307 if (os::is_MP()) { | |
3308 __ lock(); | |
3309 } | |
304 | 3310 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
0 | 3311 |
3312 // if someone beat us on the allocation, try again, otherwise continue | |
3313 __ jcc(Assembler::notEqual, retry); | |
2100
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|
3314 |
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3315 __ incr_allocated_bytes(r15_thread, rdx, 0); |
0 | 3316 } |
3317 | |
3318 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
3319 // The object is initialized before the header. If the object size is | |
3320 // zero, go directly to the header initialization. | |
3321 __ bind(initialize_object); | |
3322 __ decrementl(rdx, sizeof(oopDesc)); | |
3323 __ jcc(Assembler::zero, initialize_header); | |
3324 | |
3325 // Initialize object fields | |
3326 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
3327 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
3328 { | |
3329 Label loop; | |
3330 __ bind(loop); | |
3331 __ movq(Address(rax, rdx, Address::times_8, | |
3332 sizeof(oopDesc) - oopSize), | |
3333 rcx); | |
3334 __ decrementl(rdx); | |
3335 __ jcc(Assembler::notZero, loop); | |
3336 } | |
3337 | |
3338 // initialize object header only. | |
3339 __ bind(initialize_header); | |
3340 if (UseBiasedLocking) { | |
4762
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3341 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
304 | 3342 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
0 | 3343 } else { |
3344 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
3345 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
3346 } | |
167
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3347 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
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3348 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
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3349 __ store_klass(rax, rsi); // store klass last |
1248
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|
3350 |
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|
3351 { |
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|
3352 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
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6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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|
3353 // Trigger dtrace event for fastpath |
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6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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|
3354 __ push(atos); // save the return value |
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|
3355 __ call_VM_leaf( |
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|
3356 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
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3357 __ pop(atos); // restore the return value |
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|
3358 |
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|
3359 } |
0 | 3360 __ jmp(done); |
3361 } | |
3362 | |
3363 | |
3364 // slow case | |
3365 __ bind(slow_case); | |
3366 __ get_constant_pool(c_rarg1); | |
3367 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3368 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
3369 __ verify_oop(rax); | |
3370 | |
3371 // continue | |
3372 __ bind(done); | |
3373 } | |
3374 | |
3375 void TemplateTable::newarray() { | |
3376 transition(itos, atos); | |
3377 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
3378 __ movl(c_rarg2, rax); | |
3379 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
3380 c_rarg1, c_rarg2); | |
3381 } | |
3382 | |
3383 void TemplateTable::anewarray() { | |
3384 transition(itos, atos); | |
3385 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3386 __ get_constant_pool(c_rarg1); | |
3387 __ movl(c_rarg3, rax); | |
3388 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
3389 c_rarg1, c_rarg2, c_rarg3); | |
3390 } | |
3391 | |
3392 void TemplateTable::arraylength() { | |
3393 transition(atos, itos); | |
3394 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
3395 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
3396 } | |
3397 | |
3398 void TemplateTable::checkcast() { | |
3399 transition(atos, atos); | |
3400 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3401 __ testptr(rax, rax); // object is in rax |
0 | 3402 __ jcc(Assembler::zero, is_null); |
3403 | |
3404 // Get cpool & tags index | |
3405 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3406 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3407 // See if bytecode has already been quicked | |
3408 __ cmpb(Address(rdx, rbx, | |
3409 Address::times_1, | |
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3410 Array<u1>::base_offset_in_bytes()), |
0 | 3411 JVM_CONSTANT_Class); |
3412 __ jcc(Assembler::equal, quicked); | |
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3413 __ push(atos); // save receiver for result, and for GC |
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3414 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3415 // vm_result_2 has metadata result |
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3416 __ get_vm_result_2(rax, r15_thread); |
0 | 3417 __ pop_ptr(rdx); // restore receiver |
3418 __ jmpb(resolved); | |
3419 | |
3420 // Get superklass in rax and subklass in rbx | |
3421 __ bind(quicked); | |
304 | 3422 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
3423 __ movptr(rax, Address(rcx, rbx, | |
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3424 Address::times_8, sizeof(ConstantPool))); |
0 | 3425 |
3426 __ bind(resolved); | |
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3427 __ load_klass(rbx, rdx); |
0 | 3428 |
3429 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
3430 // Superklass in rax. Subklass in rbx. | |
3431 __ gen_subtype_check(rbx, ok_is_subtype); | |
3432 | |
3433 // Come here on failure | |
3434 __ push_ptr(rdx); | |
3435 // object is at TOS | |
3436 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
3437 | |
3438 // Come here on success | |
3439 __ bind(ok_is_subtype); | |
304 | 3440 __ mov(rax, rdx); // Restore object in rdx |
0 | 3441 |
3442 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
3443 if (ProfileInterpreter) { | |
3444 __ jmp(done); | |
3445 __ bind(is_null); | |
3446 __ profile_null_seen(rcx); | |
3447 } else { | |
3448 __ bind(is_null); // same as 'done' | |
3449 } | |
3450 __ bind(done); | |
3451 } | |
3452 | |
3453 void TemplateTable::instanceof() { | |
3454 transition(atos, itos); | |
3455 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3456 __ testptr(rax, rax); |
0 | 3457 __ jcc(Assembler::zero, is_null); |
3458 | |
3459 // Get cpool & tags index | |
3460 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3461 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3462 // See if bytecode has already been quicked | |
3463 __ cmpb(Address(rdx, rbx, | |
3464 Address::times_1, | |
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3465 Array<u1>::base_offset_in_bytes()), |
0 | 3466 JVM_CONSTANT_Class); |
3467 __ jcc(Assembler::equal, quicked); | |
3468 | |
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3469 __ push(atos); // save receiver for result, and for GC |
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3470 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3471 // vm_result_2 has metadata result |
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3472 __ get_vm_result_2(rax, r15_thread); |
0 | 3473 __ pop_ptr(rdx); // restore receiver |
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3474 __ verify_oop(rdx); |
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3475 __ load_klass(rdx, rdx); |
0 | 3476 __ jmpb(resolved); |
3477 | |
3478 // Get superklass in rax and subklass in rdx | |
3479 __ bind(quicked); | |
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3480 __ load_klass(rdx, rax); |
304 | 3481 __ movptr(rax, Address(rcx, rbx, |
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3482 Address::times_8, sizeof(ConstantPool))); |
0 | 3483 |
3484 __ bind(resolved); | |
3485 | |
3486 // Generate subtype check. Blows rcx, rdi | |
3487 // Superklass in rax. Subklass in rdx. | |
3488 __ gen_subtype_check(rdx, ok_is_subtype); | |
3489 | |
3490 // Come here on failure | |
3491 __ xorl(rax, rax); | |
3492 __ jmpb(done); | |
3493 // Come here on success | |
3494 __ bind(ok_is_subtype); | |
3495 __ movl(rax, 1); | |
3496 | |
3497 // Collect counts on whether this test sees NULLs a lot or not. | |
3498 if (ProfileInterpreter) { | |
3499 __ jmp(done); | |
3500 __ bind(is_null); | |
3501 __ profile_null_seen(rcx); | |
3502 } else { | |
3503 __ bind(is_null); // same as 'done' | |
3504 } | |
3505 __ bind(done); | |
3506 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
3507 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
3508 } | |
3509 | |
3510 //----------------------------------------------------------------------------- | |
3511 // Breakpoints | |
3512 void TemplateTable::_breakpoint() { | |
3513 // Note: We get here even if we are single stepping.. | |
3514 // jbug inists on setting breakpoints at every bytecode | |
3515 // even if we are in single step mode. | |
3516 | |
3517 transition(vtos, vtos); | |
3518 | |
3519 // get the unpatched byte code | |
3520 __ get_method(c_rarg1); | |
3521 __ call_VM(noreg, | |
3522 CAST_FROM_FN_PTR(address, | |
3523 InterpreterRuntime::get_original_bytecode_at), | |
3524 c_rarg1, r13); | |
304 | 3525 __ mov(rbx, rax); |
0 | 3526 |
3527 // post the breakpoint event | |
3528 __ get_method(c_rarg1); | |
3529 __ call_VM(noreg, | |
3530 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
3531 c_rarg1, r13); | |
3532 | |
3533 // complete the execution of original bytecode | |
3534 __ dispatch_only_normal(vtos); | |
3535 } | |
3536 | |
3537 //----------------------------------------------------------------------------- | |
3538 // Exceptions | |
3539 | |
3540 void TemplateTable::athrow() { | |
3541 transition(atos, vtos); | |
3542 __ null_check(rax); | |
3543 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
3544 } | |
3545 | |
3546 //----------------------------------------------------------------------------- | |
3547 // Synchronization | |
3548 // | |
3549 // Note: monitorenter & exit are symmetric routines; which is reflected | |
3550 // in the assembly code structure as well | |
3551 // | |
3552 // Stack layout: | |
3553 // | |
3554 // [expressions ] <--- rsp = expression stack top | |
3555 // .. | |
3556 // [expressions ] | |
3557 // [monitor entry] <--- monitor block top = expression stack bot | |
3558 // .. | |
3559 // [monitor entry] | |
3560 // [frame data ] <--- monitor block bot | |
3561 // ... | |
3562 // [saved rbp ] <--- rbp | |
3563 void TemplateTable::monitorenter() { | |
3564 transition(atos, vtos); | |
3565 | |
3566 // check for NULL object | |
3567 __ null_check(rax); | |
3568 | |
3569 const Address monitor_block_top( | |
3570 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3571 const Address monitor_block_bot( | |
3572 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3573 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3574 | |
3575 Label allocated; | |
3576 | |
3577 // initialize entry pointer | |
3578 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
3579 | |
3580 // find a free slot in the monitor block (result in c_rarg1) | |
3581 { | |
3582 Label entry, loop, exit; | |
304 | 3583 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
0 | 3584 // starting with top-most entry |
304 | 3585 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3586 // of monitor block |
3587 __ jmpb(entry); | |
3588 | |
3589 __ bind(loop); | |
3590 // check if current entry is used | |
304 | 3591 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
0 | 3592 // if not used then remember entry in c_rarg1 |
304 | 3593 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
0 | 3594 // check if current entry is for same object |
304 | 3595 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3596 // if same object then stop searching |
3597 __ jccb(Assembler::equal, exit); | |
3598 // otherwise advance to next entry | |
304 | 3599 __ addptr(c_rarg3, entry_size); |
0 | 3600 __ bind(entry); |
3601 // check if bottom reached | |
304 | 3602 __ cmpptr(c_rarg3, c_rarg2); |
0 | 3603 // if not at bottom then check this entry |
3604 __ jcc(Assembler::notEqual, loop); | |
3605 __ bind(exit); | |
3606 } | |
3607 | |
304 | 3608 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
0 | 3609 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
3610 | |
3611 // allocate one if there's no free slot | |
3612 { | |
3613 Label entry, loop; | |
304 | 3614 // 1. compute new pointers // rsp: old expression stack top |
3615 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
3616 __ subptr(rsp, entry_size); // move expression stack top | |
3617 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
3618 __ mov(c_rarg3, rsp); // set start value for copy loop | |
3619 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
0 | 3620 __ jmp(entry); |
3621 // 2. move expression stack contents | |
3622 __ bind(loop); | |
304 | 3623 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
3624 // word from old location | |
3625 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
3626 __ addptr(c_rarg3, wordSize); // advance to next word | |
0 | 3627 __ bind(entry); |
304 | 3628 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
0 | 3629 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
3630 // copy next word | |
3631 } | |
3632 | |
3633 // call run-time routine | |
3634 // c_rarg1: points to monitor entry | |
3635 __ bind(allocated); | |
3636 | |
3637 // Increment bcp to point to the next bytecode, so exception | |
3638 // handling for async. exceptions work correctly. | |
3639 // The object has already been poped from the stack, so the | |
3640 // expression stack looks correct. | |
304 | 3641 __ increment(r13); |
0 | 3642 |
3643 // store object | |
304 | 3644 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
0 | 3645 __ lock_object(c_rarg1); |
3646 | |
3647 // check to make sure this monitor doesn't cause stack overflow after locking | |
3648 __ save_bcp(); // in case of exception | |
3649 __ generate_stack_overflow_check(0); | |
3650 | |
3651 // The bcp has already been incremented. Just need to dispatch to | |
3652 // next instruction. | |
3653 __ dispatch_next(vtos); | |
3654 } | |
3655 | |
3656 | |
3657 void TemplateTable::monitorexit() { | |
3658 transition(atos, vtos); | |
3659 | |
3660 // check for NULL object | |
3661 __ null_check(rax); | |
3662 | |
3663 const Address monitor_block_top( | |
3664 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3665 const Address monitor_block_bot( | |
3666 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3667 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3668 | |
3669 Label found; | |
3670 | |
3671 // find matching slot | |
3672 { | |
3673 Label entry, loop; | |
304 | 3674 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
0 | 3675 // starting with top-most entry |
304 | 3676 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3677 // of monitor block |
3678 __ jmpb(entry); | |
3679 | |
3680 __ bind(loop); | |
3681 // check if current entry is for same object | |
304 | 3682 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3683 // if same object then stop searching |
3684 __ jcc(Assembler::equal, found); | |
3685 // otherwise advance to next entry | |
304 | 3686 __ addptr(c_rarg1, entry_size); |
0 | 3687 __ bind(entry); |
3688 // check if bottom reached | |
304 | 3689 __ cmpptr(c_rarg1, c_rarg2); |
0 | 3690 // if not at bottom then check this entry |
3691 __ jcc(Assembler::notEqual, loop); | |
3692 } | |
3693 | |
3694 // error handling. Unlocking was not block-structured | |
3695 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
3696 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
3697 __ should_not_reach_here(); | |
3698 | |
3699 // call run-time routine | |
3700 // rsi: points to monitor entry | |
3701 __ bind(found); | |
3702 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
3703 __ unlock_object(c_rarg1); | |
3704 __ pop_ptr(rax); // discard object | |
3705 } | |
3706 | |
3707 | |
3708 // Wide instructions | |
3709 void TemplateTable::wide() { | |
3710 transition(vtos, vtos); | |
3711 __ load_unsigned_byte(rbx, at_bcp(1)); | |
3712 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
3713 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
3714 // Note: the r13 increment step is part of the individual wide | |
3715 // bytecode implementations | |
3716 } | |
3717 | |
3718 | |
3719 // Multi arrays | |
3720 void TemplateTable::multianewarray() { | |
3721 transition(vtos, atos); | |
3722 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
3723 // last dim is on top of stack; we want address of first one: | |
3724 // first_addr = last_addr + (ndims - 1) * wordSize | |
304 | 3725 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
0 | 3726 call_VM(rax, |
3727 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
3728 c_rarg1); | |
3729 __ load_unsigned_byte(rbx, at_bcp(3)); | |
304 | 3730 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
0 | 3731 } |
304 | 3732 #endif // !CC_INTERP |