Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 7448:b735136e0d82
8004132: SerialGC: ValidateMarkSweep broken when running GCOld
Summary: Remove bit-rotten ValidateMarkSweep functionality and flag.
Reviewed-by: johnc, jmasa
Contributed-by: tamao <tao.mao@oracle.com>
author | johnc |
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date | Wed, 02 Jan 2013 11:32:41 -0800 |
parents | cd3d6a6b95d9 |
children | db9981fd3124 |
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" | |
0 | 38 |
304 | 39 #ifndef CC_INTERP |
40 | |
0 | 41 #define __ _masm-> |
42 | |
43 // Platform-dependent initialization | |
44 | |
45 void TemplateTable::pd_initialize() { | |
46 // No amd64 specific initialization | |
47 } | |
48 | |
49 // Address computation: local variables | |
50 | |
51 static inline Address iaddress(int n) { | |
52 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
53 } | |
54 | |
55 static inline Address laddress(int n) { | |
56 return iaddress(n + 1); | |
57 } | |
58 | |
59 static inline Address faddress(int n) { | |
60 return iaddress(n); | |
61 } | |
62 | |
63 static inline Address daddress(int n) { | |
64 return laddress(n); | |
65 } | |
66 | |
67 static inline Address aaddress(int n) { | |
68 return iaddress(n); | |
69 } | |
70 | |
71 static inline Address iaddress(Register r) { | |
1506 | 72 return Address(r14, r, Address::times_8); |
0 | 73 } |
74 | |
75 static inline Address laddress(Register r) { | |
76 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
77 } | |
78 | |
79 static inline Address faddress(Register r) { | |
80 return iaddress(r); | |
81 } | |
82 | |
83 static inline Address daddress(Register r) { | |
84 return laddress(r); | |
85 } | |
86 | |
87 static inline Address aaddress(Register r) { | |
88 return iaddress(r); | |
89 } | |
90 | |
91 static inline Address at_rsp() { | |
92 return Address(rsp, 0); | |
93 } | |
94 | |
95 // At top of Java expression stack which may be different than esp(). It | |
96 // isn't for category 1 objects. | |
97 static inline Address at_tos () { | |
98 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
99 } | |
100 | |
101 static inline Address at_tos_p1() { | |
102 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
103 } | |
104 | |
105 static inline Address at_tos_p2() { | |
106 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
107 } | |
108 | |
109 static inline Address at_tos_p3() { | |
110 return Address(rsp, Interpreter::expr_offset_in_bytes(3)); | |
111 } | |
112 | |
113 // Condition conversion | |
114 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
115 switch (cc) { | |
116 case TemplateTable::equal : return Assembler::notEqual; | |
117 case TemplateTable::not_equal : return Assembler::equal; | |
118 case TemplateTable::less : return Assembler::greaterEqual; | |
119 case TemplateTable::less_equal : return Assembler::greater; | |
120 case TemplateTable::greater : return Assembler::lessEqual; | |
121 case TemplateTable::greater_equal: return Assembler::less; | |
122 } | |
123 ShouldNotReachHere(); | |
124 return Assembler::zero; | |
125 } | |
126 | |
127 | |
128 // Miscelaneous helper routines | |
342
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129 // Store an oop (or NULL) at the address described by obj. |
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130 // If val == noreg this means store a NULL |
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131 |
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132 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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133 Address obj, |
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134 Register val, |
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135 BarrierSet::Name barrier, |
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136 bool precise) { |
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137 assert(val == noreg || val == rax, "parameter is just for looks"); |
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138 switch (barrier) { |
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139 #ifndef SERIALGC |
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140 case BarrierSet::G1SATBCT: |
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141 case BarrierSet::G1SATBCTLogging: |
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142 { |
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143 // flatten object address if needed |
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144 if (obj.index() == noreg && obj.disp() == 0) { |
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145 if (obj.base() != rdx) { |
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146 __ movq(rdx, obj.base()); |
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147 } |
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148 } else { |
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149 __ leaq(rdx, obj); |
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150 } |
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151 __ g1_write_barrier_pre(rdx /* obj */, |
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152 rbx /* pre_val */, |
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153 r15_thread /* thread */, |
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154 r8 /* tmp */, |
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155 val != noreg /* tosca_live */, |
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156 false /* expand_call */); |
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157 if (val == noreg) { |
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158 __ store_heap_oop_null(Address(rdx, 0)); |
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159 } else { |
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160 __ store_heap_oop(Address(rdx, 0), val); |
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161 __ g1_write_barrier_post(rdx /* store_adr */, |
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162 val /* new_val */, |
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163 r15_thread /* thread */, |
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164 r8 /* tmp */, |
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165 rbx /* tmp2 */); |
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166 } |
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167 |
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168 } |
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169 break; |
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170 #endif // SERIALGC |
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171 case BarrierSet::CardTableModRef: |
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172 case BarrierSet::CardTableExtension: |
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173 { |
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174 if (val == noreg) { |
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175 __ store_heap_oop_null(obj); |
342
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176 } else { |
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177 __ store_heap_oop(obj, val); |
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178 // flatten object address if needed |
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179 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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180 __ store_check(obj.base()); |
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181 } else { |
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182 __ leaq(rdx, obj); |
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183 __ store_check(rdx); |
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184 } |
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185 } |
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186 } |
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187 break; |
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188 case BarrierSet::ModRef: |
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189 case BarrierSet::Other: |
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190 if (val == noreg) { |
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191 __ store_heap_oop_null(obj); |
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192 } else { |
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193 __ store_heap_oop(obj, val); |
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194 } |
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195 break; |
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196 default : |
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197 ShouldNotReachHere(); |
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198 |
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199 } |
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200 } |
0 | 201 |
202 Address TemplateTable::at_bcp(int offset) { | |
203 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
204 return Address(r13, offset); | |
205 } | |
206 | |
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207 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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208 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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209 int byte_no) { |
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210 if (!RewriteBytecodes) return; |
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211 Label L_patch_done; |
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212 |
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213 switch (bc) { |
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214 case Bytecodes::_fast_aputfield: |
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215 case Bytecodes::_fast_bputfield: |
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216 case Bytecodes::_fast_cputfield: |
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217 case Bytecodes::_fast_dputfield: |
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218 case Bytecodes::_fast_fputfield: |
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219 case Bytecodes::_fast_iputfield: |
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220 case Bytecodes::_fast_lputfield: |
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221 case Bytecodes::_fast_sputfield: |
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222 { |
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223 // We skip bytecode quickening for putfield instructions when |
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224 // the put_code written to the constant pool cache is zero. |
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225 // This is required so that every execution of this instruction |
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226 // calls out to InterpreterRuntime::resolve_get_put to do |
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227 // additional, required work. |
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228 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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229 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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230 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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231 __ movl(bc_reg, bc); |
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232 __ cmpl(temp_reg, (int) 0); |
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233 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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234 } |
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235 break; |
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236 default: |
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237 assert(byte_no == -1, "sanity"); |
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238 // the pair bytecodes have already done the load. |
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239 if (load_bc_into_bc_reg) { |
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240 __ movl(bc_reg, bc); |
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241 } |
0 | 242 } |
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243 |
0 | 244 if (JvmtiExport::can_post_breakpoint()) { |
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245 Label L_fast_patch; |
0 | 246 // if a breakpoint is present we can't rewrite the stream directly |
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247 __ movzbl(temp_reg, at_bcp(0)); |
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248 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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249 __ jcc(Assembler::notEqual, L_fast_patch); |
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250 __ get_method(temp_reg); |
0 | 251 // Let breakpoint table handling rewrite to quicker bytecode |
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252 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
0 | 253 #ifndef ASSERT |
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254 __ jmpb(L_patch_done); |
1108 | 255 #else |
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256 __ jmp(L_patch_done); |
1108 | 257 #endif |
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258 __ bind(L_fast_patch); |
0 | 259 } |
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260 |
1108 | 261 #ifdef ASSERT |
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262 Label L_okay; |
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263 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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264 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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265 __ jcc(Assembler::equal, L_okay); |
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266 __ cmpl(temp_reg, bc_reg); |
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267 __ jcc(Assembler::equal, L_okay); |
0 | 268 __ stop("patching the wrong bytecode"); |
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269 __ bind(L_okay); |
0 | 270 #endif |
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271 |
0 | 272 // patch bytecode |
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273 __ movb(at_bcp(0), bc_reg); |
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274 __ bind(L_patch_done); |
0 | 275 } |
276 | |
277 | |
278 // Individual instructions | |
279 | |
280 void TemplateTable::nop() { | |
281 transition(vtos, vtos); | |
282 // nothing to do | |
283 } | |
284 | |
285 void TemplateTable::shouldnotreachhere() { | |
286 transition(vtos, vtos); | |
287 __ stop("shouldnotreachhere bytecode"); | |
288 } | |
289 | |
290 void TemplateTable::aconst_null() { | |
291 transition(vtos, atos); | |
292 __ xorl(rax, rax); | |
293 } | |
294 | |
295 void TemplateTable::iconst(int value) { | |
296 transition(vtos, itos); | |
297 if (value == 0) { | |
298 __ xorl(rax, rax); | |
299 } else { | |
300 __ movl(rax, value); | |
301 } | |
302 } | |
303 | |
304 void TemplateTable::lconst(int value) { | |
305 transition(vtos, ltos); | |
306 if (value == 0) { | |
307 __ xorl(rax, rax); | |
308 } else { | |
309 __ movl(rax, value); | |
310 } | |
311 } | |
312 | |
313 void TemplateTable::fconst(int value) { | |
314 transition(vtos, ftos); | |
315 static float one = 1.0f, two = 2.0f; | |
316 switch (value) { | |
317 case 0: | |
318 __ xorps(xmm0, xmm0); | |
319 break; | |
320 case 1: | |
321 __ movflt(xmm0, ExternalAddress((address) &one)); | |
322 break; | |
323 case 2: | |
324 __ movflt(xmm0, ExternalAddress((address) &two)); | |
325 break; | |
326 default: | |
327 ShouldNotReachHere(); | |
328 break; | |
329 } | |
330 } | |
331 | |
332 void TemplateTable::dconst(int value) { | |
333 transition(vtos, dtos); | |
334 static double one = 1.0; | |
335 switch (value) { | |
336 case 0: | |
337 __ xorpd(xmm0, xmm0); | |
338 break; | |
339 case 1: | |
340 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
341 break; | |
342 default: | |
343 ShouldNotReachHere(); | |
344 break; | |
345 } | |
346 } | |
347 | |
348 void TemplateTable::bipush() { | |
349 transition(vtos, itos); | |
350 __ load_signed_byte(rax, at_bcp(1)); | |
351 } | |
352 | |
353 void TemplateTable::sipush() { | |
354 transition(vtos, itos); | |
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355 __ load_unsigned_short(rax, at_bcp(1)); |
0 | 356 __ bswapl(rax); |
357 __ sarl(rax, 16); | |
358 } | |
359 | |
360 void TemplateTable::ldc(bool wide) { | |
361 transition(vtos, vtos); | |
362 Label call_ldc, notFloat, notClass, Done; | |
363 | |
364 if (wide) { | |
365 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
366 } else { | |
367 __ load_unsigned_byte(rbx, at_bcp(1)); | |
368 } | |
369 | |
370 __ get_cpool_and_tags(rcx, rax); | |
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371 const int base_offset = ConstantPool::header_size() * wordSize; |
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372 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 373 |
374 // get type | |
375 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
376 | |
377 // unresolved class - get the resolved class | |
378 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
379 __ jccb(Assembler::equal, call_ldc); | |
380 | |
381 // unresolved class in error state - call into runtime to throw the error | |
382 // from the first resolution attempt | |
383 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
384 __ jccb(Assembler::equal, call_ldc); | |
385 | |
386 // resolved class - need to call vm to get java mirror of the class | |
387 __ cmpl(rdx, JVM_CONSTANT_Class); | |
388 __ jcc(Assembler::notEqual, notClass); | |
389 | |
390 __ bind(call_ldc); | |
391 __ movl(c_rarg1, wide); | |
392 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
393 __ push_ptr(rax); | |
394 __ verify_oop(rax); | |
395 __ jmp(Done); | |
396 | |
397 __ bind(notClass); | |
398 __ cmpl(rdx, JVM_CONSTANT_Float); | |
399 __ jccb(Assembler::notEqual, notFloat); | |
400 // ftos | |
401 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
402 __ push_f(); | |
403 __ jmp(Done); | |
404 | |
405 __ bind(notFloat); | |
406 #ifdef ASSERT | |
407 { | |
408 Label L; | |
409 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
410 __ jcc(Assembler::equal, L); | |
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411 // String and Object are rewritten to fast_aldc |
0 | 412 __ stop("unexpected tag type in ldc"); |
413 __ bind(L); | |
414 } | |
415 #endif | |
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416 // itos JVM_CONSTANT_Integer only |
0 | 417 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
418 __ push_i(rax); | |
419 __ bind(Done); | |
420 } | |
421 | |
1602 | 422 // Fast path for caching oop constants. |
423 void TemplateTable::fast_aldc(bool wide) { | |
424 transition(vtos, atos); | |
425 | |
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426 Register result = rax; |
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427 Register tmp = rdx; |
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428 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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429 |
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430 Label resolved; |
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431 |
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432 // We are resolved if the resolved reference cache entry contains a |
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433 // non-null object (String, MethodType, etc.) |
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434 assert_different_registers(result, tmp); |
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435 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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436 __ load_resolved_reference_at_index(result, tmp); |
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437 __ testl(result, result); |
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438 __ jcc(Assembler::notZero, resolved); |
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439 |
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440 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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441 |
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442 // first time invocation - must resolve first |
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443 __ movl(tmp, (int)bytecode()); |
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444 __ call_VM(result, entry, tmp); |
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445 |
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446 __ bind(resolved); |
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447 |
1602 | 448 if (VerifyOops) { |
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449 __ verify_oop(result); |
1602 | 450 } |
451 } | |
452 | |
0 | 453 void TemplateTable::ldc2_w() { |
454 transition(vtos, vtos); | |
455 Label Long, Done; | |
456 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
457 | |
458 __ get_cpool_and_tags(rcx, rax); | |
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459 const int base_offset = ConstantPool::header_size() * wordSize; |
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460 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 461 |
462 // get type | |
463 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
464 JVM_CONSTANT_Double); | |
465 __ jccb(Assembler::notEqual, Long); | |
466 // dtos | |
467 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
468 __ push_d(); | |
469 __ jmpb(Done); | |
470 | |
471 __ bind(Long); | |
472 // ltos | |
473 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
474 __ push_l(); | |
475 | |
476 __ bind(Done); | |
477 } | |
478 | |
479 void TemplateTable::locals_index(Register reg, int offset) { | |
480 __ load_unsigned_byte(reg, at_bcp(offset)); | |
304 | 481 __ negptr(reg); |
0 | 482 } |
483 | |
484 void TemplateTable::iload() { | |
485 transition(vtos, itos); | |
486 if (RewriteFrequentPairs) { | |
487 Label rewrite, done; | |
488 const Register bc = c_rarg3; | |
489 assert(rbx != bc, "register damaged"); | |
490 | |
491 // get next byte | |
492 __ load_unsigned_byte(rbx, | |
493 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
494 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
495 // last two iloads in a pair. Comparing against fast_iload means that | |
496 // the next bytecode is neither an iload or a caload, and therefore | |
497 // an iload pair. | |
498 __ cmpl(rbx, Bytecodes::_iload); | |
499 __ jcc(Assembler::equal, done); | |
500 | |
501 __ cmpl(rbx, Bytecodes::_fast_iload); | |
502 __ movl(bc, Bytecodes::_fast_iload2); | |
503 __ jccb(Assembler::equal, rewrite); | |
504 | |
505 // if _caload, rewrite to fast_icaload | |
506 __ cmpl(rbx, Bytecodes::_caload); | |
507 __ movl(bc, Bytecodes::_fast_icaload); | |
508 __ jccb(Assembler::equal, rewrite); | |
509 | |
510 // rewrite so iload doesn't check again. | |
511 __ movl(bc, Bytecodes::_fast_iload); | |
512 | |
513 // rewrite | |
514 // bc: fast bytecode | |
515 __ bind(rewrite); | |
516 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
517 __ bind(done); | |
518 } | |
519 | |
520 // Get the local value into tos | |
521 locals_index(rbx); | |
522 __ movl(rax, iaddress(rbx)); | |
523 } | |
524 | |
525 void TemplateTable::fast_iload2() { | |
526 transition(vtos, itos); | |
527 locals_index(rbx); | |
528 __ movl(rax, iaddress(rbx)); | |
529 __ push(itos); | |
530 locals_index(rbx, 3); | |
531 __ movl(rax, iaddress(rbx)); | |
532 } | |
533 | |
534 void TemplateTable::fast_iload() { | |
535 transition(vtos, itos); | |
536 locals_index(rbx); | |
537 __ movl(rax, iaddress(rbx)); | |
538 } | |
539 | |
540 void TemplateTable::lload() { | |
541 transition(vtos, ltos); | |
542 locals_index(rbx); | |
543 __ movq(rax, laddress(rbx)); | |
544 } | |
545 | |
546 void TemplateTable::fload() { | |
547 transition(vtos, ftos); | |
548 locals_index(rbx); | |
549 __ movflt(xmm0, faddress(rbx)); | |
550 } | |
551 | |
552 void TemplateTable::dload() { | |
553 transition(vtos, dtos); | |
554 locals_index(rbx); | |
555 __ movdbl(xmm0, daddress(rbx)); | |
556 } | |
557 | |
558 void TemplateTable::aload() { | |
559 transition(vtos, atos); | |
560 locals_index(rbx); | |
304 | 561 __ movptr(rax, aaddress(rbx)); |
0 | 562 } |
563 | |
564 void TemplateTable::locals_index_wide(Register reg) { | |
565 __ movl(reg, at_bcp(2)); | |
566 __ bswapl(reg); | |
567 __ shrl(reg, 16); | |
304 | 568 __ negptr(reg); |
0 | 569 } |
570 | |
571 void TemplateTable::wide_iload() { | |
572 transition(vtos, itos); | |
573 locals_index_wide(rbx); | |
574 __ movl(rax, iaddress(rbx)); | |
575 } | |
576 | |
577 void TemplateTable::wide_lload() { | |
578 transition(vtos, ltos); | |
579 locals_index_wide(rbx); | |
580 __ movq(rax, laddress(rbx)); | |
581 } | |
582 | |
583 void TemplateTable::wide_fload() { | |
584 transition(vtos, ftos); | |
585 locals_index_wide(rbx); | |
586 __ movflt(xmm0, faddress(rbx)); | |
587 } | |
588 | |
589 void TemplateTable::wide_dload() { | |
590 transition(vtos, dtos); | |
591 locals_index_wide(rbx); | |
592 __ movdbl(xmm0, daddress(rbx)); | |
593 } | |
594 | |
595 void TemplateTable::wide_aload() { | |
596 transition(vtos, atos); | |
597 locals_index_wide(rbx); | |
304 | 598 __ movptr(rax, aaddress(rbx)); |
0 | 599 } |
600 | |
601 void TemplateTable::index_check(Register array, Register index) { | |
602 // destroys rbx | |
603 // check array | |
604 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
605 // sign extend index for use by indexed load | |
304 | 606 __ movl2ptr(index, index); |
0 | 607 // check index |
608 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
609 if (index != rbx) { | |
610 // ??? convention: move aberrant index into ebx for exception message | |
611 assert(rbx != array, "different registers"); | |
612 __ movl(rbx, index); | |
613 } | |
614 __ jump_cc(Assembler::aboveEqual, | |
615 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
616 } | |
617 | |
618 void TemplateTable::iaload() { | |
619 transition(itos, itos); | |
620 __ pop_ptr(rdx); | |
621 // eax: index | |
622 // rdx: array | |
623 index_check(rdx, rax); // kills rbx | |
624 __ movl(rax, Address(rdx, rax, | |
625 Address::times_4, | |
626 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
627 } | |
628 | |
629 void TemplateTable::laload() { | |
630 transition(itos, ltos); | |
631 __ pop_ptr(rdx); | |
632 // eax: index | |
633 // rdx: array | |
634 index_check(rdx, rax); // kills rbx | |
635 __ movq(rax, Address(rdx, rbx, | |
636 Address::times_8, | |
637 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
638 } | |
639 | |
640 void TemplateTable::faload() { | |
641 transition(itos, ftos); | |
642 __ pop_ptr(rdx); | |
643 // eax: index | |
644 // rdx: array | |
645 index_check(rdx, rax); // kills rbx | |
646 __ movflt(xmm0, Address(rdx, rax, | |
647 Address::times_4, | |
648 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
649 } | |
650 | |
651 void TemplateTable::daload() { | |
652 transition(itos, dtos); | |
653 __ pop_ptr(rdx); | |
654 // eax: index | |
655 // rdx: array | |
656 index_check(rdx, rax); // kills rbx | |
657 __ movdbl(xmm0, Address(rdx, rax, | |
658 Address::times_8, | |
659 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
660 } | |
661 | |
662 void TemplateTable::aaload() { | |
663 transition(itos, atos); | |
664 __ pop_ptr(rdx); | |
665 // eax: index | |
666 // rdx: array | |
667 index_check(rdx, rax); // kills rbx | |
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668 __ load_heap_oop(rax, Address(rdx, rax, |
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669 UseCompressedOops ? Address::times_4 : Address::times_8, |
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670 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
0 | 671 } |
672 | |
673 void TemplateTable::baload() { | |
674 transition(itos, itos); | |
675 __ pop_ptr(rdx); | |
676 // eax: index | |
677 // rdx: array | |
678 index_check(rdx, rax); // kills rbx | |
679 __ load_signed_byte(rax, | |
680 Address(rdx, rax, | |
681 Address::times_1, | |
682 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
683 } | |
684 | |
685 void TemplateTable::caload() { | |
686 transition(itos, itos); | |
687 __ pop_ptr(rdx); | |
688 // eax: index | |
689 // rdx: array | |
690 index_check(rdx, rax); // kills rbx | |
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691 __ load_unsigned_short(rax, |
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692 Address(rdx, rax, |
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693 Address::times_2, |
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694 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 695 } |
696 | |
697 // iload followed by caload frequent pair | |
698 void TemplateTable::fast_icaload() { | |
699 transition(vtos, itos); | |
700 // load index out of locals | |
701 locals_index(rbx); | |
702 __ movl(rax, iaddress(rbx)); | |
703 | |
704 // eax: index | |
705 // rdx: array | |
706 __ pop_ptr(rdx); | |
707 index_check(rdx, rax); // kills rbx | |
622
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708 __ load_unsigned_short(rax, |
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709 Address(rdx, rax, |
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710 Address::times_2, |
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711 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 712 } |
713 | |
714 void TemplateTable::saload() { | |
715 transition(itos, itos); | |
716 __ pop_ptr(rdx); | |
717 // eax: index | |
718 // rdx: array | |
719 index_check(rdx, rax); // kills rbx | |
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720 __ load_signed_short(rax, |
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721 Address(rdx, rax, |
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722 Address::times_2, |
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723 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
0 | 724 } |
725 | |
726 void TemplateTable::iload(int n) { | |
727 transition(vtos, itos); | |
728 __ movl(rax, iaddress(n)); | |
729 } | |
730 | |
731 void TemplateTable::lload(int n) { | |
732 transition(vtos, ltos); | |
733 __ movq(rax, laddress(n)); | |
734 } | |
735 | |
736 void TemplateTable::fload(int n) { | |
737 transition(vtos, ftos); | |
738 __ movflt(xmm0, faddress(n)); | |
739 } | |
740 | |
741 void TemplateTable::dload(int n) { | |
742 transition(vtos, dtos); | |
743 __ movdbl(xmm0, daddress(n)); | |
744 } | |
745 | |
746 void TemplateTable::aload(int n) { | |
747 transition(vtos, atos); | |
304 | 748 __ movptr(rax, aaddress(n)); |
0 | 749 } |
750 | |
751 void TemplateTable::aload_0() { | |
752 transition(vtos, atos); | |
753 // According to bytecode histograms, the pairs: | |
754 // | |
755 // _aload_0, _fast_igetfield | |
756 // _aload_0, _fast_agetfield | |
757 // _aload_0, _fast_fgetfield | |
758 // | |
759 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
760 // _aload_0 bytecode checks if the next bytecode is either | |
761 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
762 // rewrites the current bytecode into a pair bytecode; otherwise it | |
763 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
764 // the pair check anymore. | |
765 // | |
766 // Note: If the next bytecode is _getfield, the rewrite must be | |
767 // delayed, otherwise we may miss an opportunity for a pair. | |
768 // | |
769 // Also rewrite frequent pairs | |
770 // aload_0, aload_1 | |
771 // aload_0, iload_1 | |
772 // These bytecodes with a small amount of code are most profitable | |
773 // to rewrite | |
774 if (RewriteFrequentPairs) { | |
775 Label rewrite, done; | |
776 const Register bc = c_rarg3; | |
777 assert(rbx != bc, "register damaged"); | |
778 // get next byte | |
779 __ load_unsigned_byte(rbx, | |
780 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
781 | |
782 // do actual aload_0 | |
783 aload(0); | |
784 | |
785 // if _getfield then wait with rewrite | |
786 __ cmpl(rbx, Bytecodes::_getfield); | |
787 __ jcc(Assembler::equal, done); | |
788 | |
789 // if _igetfield then reqrite to _fast_iaccess_0 | |
790 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
791 Bytecodes::_aload_0, | |
792 "fix bytecode definition"); | |
793 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
794 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
795 __ jccb(Assembler::equal, rewrite); | |
796 | |
797 // if _agetfield then reqrite to _fast_aaccess_0 | |
798 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
799 Bytecodes::_aload_0, | |
800 "fix bytecode definition"); | |
801 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
802 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
803 __ jccb(Assembler::equal, rewrite); | |
804 | |
805 // if _fgetfield then reqrite to _fast_faccess_0 | |
806 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
807 Bytecodes::_aload_0, | |
808 "fix bytecode definition"); | |
809 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
810 __ movl(bc, Bytecodes::_fast_faccess_0); | |
811 __ jccb(Assembler::equal, rewrite); | |
812 | |
813 // else rewrite to _fast_aload0 | |
814 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
815 Bytecodes::_aload_0, | |
816 "fix bytecode definition"); | |
817 __ movl(bc, Bytecodes::_fast_aload_0); | |
818 | |
819 // rewrite | |
820 // bc: fast bytecode | |
821 __ bind(rewrite); | |
822 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
823 | |
824 __ bind(done); | |
825 } else { | |
826 aload(0); | |
827 } | |
828 } | |
829 | |
830 void TemplateTable::istore() { | |
831 transition(itos, vtos); | |
832 locals_index(rbx); | |
833 __ movl(iaddress(rbx), rax); | |
834 } | |
835 | |
836 void TemplateTable::lstore() { | |
837 transition(ltos, vtos); | |
838 locals_index(rbx); | |
839 __ movq(laddress(rbx), rax); | |
840 } | |
841 | |
842 void TemplateTable::fstore() { | |
843 transition(ftos, vtos); | |
844 locals_index(rbx); | |
845 __ movflt(faddress(rbx), xmm0); | |
846 } | |
847 | |
848 void TemplateTable::dstore() { | |
849 transition(dtos, vtos); | |
850 locals_index(rbx); | |
851 __ movdbl(daddress(rbx), xmm0); | |
852 } | |
853 | |
854 void TemplateTable::astore() { | |
855 transition(vtos, vtos); | |
1506 | 856 __ pop_ptr(rax); |
0 | 857 locals_index(rbx); |
304 | 858 __ movptr(aaddress(rbx), rax); |
0 | 859 } |
860 | |
861 void TemplateTable::wide_istore() { | |
862 transition(vtos, vtos); | |
863 __ pop_i(); | |
864 locals_index_wide(rbx); | |
865 __ movl(iaddress(rbx), rax); | |
866 } | |
867 | |
868 void TemplateTable::wide_lstore() { | |
869 transition(vtos, vtos); | |
870 __ pop_l(); | |
871 locals_index_wide(rbx); | |
872 __ movq(laddress(rbx), rax); | |
873 } | |
874 | |
875 void TemplateTable::wide_fstore() { | |
876 transition(vtos, vtos); | |
877 __ pop_f(); | |
878 locals_index_wide(rbx); | |
879 __ movflt(faddress(rbx), xmm0); | |
880 } | |
881 | |
882 void TemplateTable::wide_dstore() { | |
883 transition(vtos, vtos); | |
884 __ pop_d(); | |
885 locals_index_wide(rbx); | |
886 __ movdbl(daddress(rbx), xmm0); | |
887 } | |
888 | |
889 void TemplateTable::wide_astore() { | |
890 transition(vtos, vtos); | |
1506 | 891 __ pop_ptr(rax); |
0 | 892 locals_index_wide(rbx); |
304 | 893 __ movptr(aaddress(rbx), rax); |
0 | 894 } |
895 | |
896 void TemplateTable::iastore() { | |
897 transition(itos, vtos); | |
898 __ pop_i(rbx); | |
899 __ pop_ptr(rdx); | |
900 // eax: value | |
901 // ebx: index | |
902 // rdx: array | |
903 index_check(rdx, rbx); // prefer index in ebx | |
904 __ movl(Address(rdx, rbx, | |
905 Address::times_4, | |
906 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
907 rax); | |
908 } | |
909 | |
910 void TemplateTable::lastore() { | |
911 transition(ltos, vtos); | |
912 __ pop_i(rbx); | |
913 __ pop_ptr(rdx); | |
914 // rax: value | |
915 // ebx: index | |
916 // rdx: array | |
917 index_check(rdx, rbx); // prefer index in ebx | |
918 __ movq(Address(rdx, rbx, | |
919 Address::times_8, | |
920 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
921 rax); | |
922 } | |
923 | |
924 void TemplateTable::fastore() { | |
925 transition(ftos, vtos); | |
926 __ pop_i(rbx); | |
927 __ pop_ptr(rdx); | |
928 // xmm0: value | |
929 // ebx: index | |
930 // rdx: array | |
931 index_check(rdx, rbx); // prefer index in ebx | |
932 __ movflt(Address(rdx, rbx, | |
933 Address::times_4, | |
934 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
935 xmm0); | |
936 } | |
937 | |
938 void TemplateTable::dastore() { | |
939 transition(dtos, vtos); | |
940 __ pop_i(rbx); | |
941 __ pop_ptr(rdx); | |
942 // xmm0: value | |
943 // ebx: index | |
944 // rdx: array | |
945 index_check(rdx, rbx); // prefer index in ebx | |
946 __ movdbl(Address(rdx, rbx, | |
947 Address::times_8, | |
948 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
949 xmm0); | |
950 } | |
951 | |
952 void TemplateTable::aastore() { | |
953 Label is_null, ok_is_subtype, done; | |
954 transition(vtos, vtos); | |
955 // stack: ..., array, index, value | |
304 | 956 __ movptr(rax, at_tos()); // value |
0 | 957 __ movl(rcx, at_tos_p1()); // index |
304 | 958 __ movptr(rdx, at_tos_p2()); // array |
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959 |
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960 Address element_address(rdx, rcx, |
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961 UseCompressedOops? Address::times_4 : Address::times_8, |
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962 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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963 |
0 | 964 index_check(rdx, rcx); // kills rbx |
965 // do array store check - check for NULL value first | |
304 | 966 __ testptr(rax, rax); |
0 | 967 __ jcc(Assembler::zero, is_null); |
968 | |
969 // Move subklass into rbx | |
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970 __ load_klass(rbx, rax); |
0 | 971 // Move superklass into rax |
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972 __ load_klass(rax, rdx); |
304 | 973 __ movptr(rax, Address(rax, |
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974 ObjArrayKlass::element_klass_offset())); |
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975 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
362 | 976 __ lea(rdx, element_address); |
0 | 977 |
978 // Generate subtype check. Blows rcx, rdi | |
979 // Superklass in rax. Subklass in rbx. | |
980 __ gen_subtype_check(rbx, ok_is_subtype); | |
981 | |
982 // Come here on failure | |
983 // object is at TOS | |
984 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
985 | |
986 // Come here on success | |
987 __ bind(ok_is_subtype); | |
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988 |
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989 // Get the value we will store |
362 | 990 __ movptr(rax, at_tos()); |
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991 // Now store using the appropriate barrier |
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992 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
0 | 993 __ jmp(done); |
994 | |
995 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
996 __ bind(is_null); | |
997 __ profile_null_seen(rbx); | |
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998 |
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999 // Store a NULL |
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1000 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
0 | 1001 |
1002 // Pop stack arguments | |
1003 __ bind(done); | |
1506 | 1004 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
0 | 1005 } |
1006 | |
1007 void TemplateTable::bastore() { | |
1008 transition(itos, vtos); | |
1009 __ pop_i(rbx); | |
1010 __ pop_ptr(rdx); | |
1011 // eax: value | |
1012 // ebx: index | |
1013 // rdx: array | |
1014 index_check(rdx, rbx); // prefer index in ebx | |
1015 __ movb(Address(rdx, rbx, | |
1016 Address::times_1, | |
1017 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
1018 rax); | |
1019 } | |
1020 | |
1021 void TemplateTable::castore() { | |
1022 transition(itos, vtos); | |
1023 __ pop_i(rbx); | |
1024 __ pop_ptr(rdx); | |
1025 // eax: value | |
1026 // ebx: index | |
1027 // rdx: array | |
1028 index_check(rdx, rbx); // prefer index in ebx | |
1029 __ movw(Address(rdx, rbx, | |
1030 Address::times_2, | |
1031 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
1032 rax); | |
1033 } | |
1034 | |
1035 void TemplateTable::sastore() { | |
1036 castore(); | |
1037 } | |
1038 | |
1039 void TemplateTable::istore(int n) { | |
1040 transition(itos, vtos); | |
1041 __ movl(iaddress(n), rax); | |
1042 } | |
1043 | |
1044 void TemplateTable::lstore(int n) { | |
1045 transition(ltos, vtos); | |
1046 __ movq(laddress(n), rax); | |
1047 } | |
1048 | |
1049 void TemplateTable::fstore(int n) { | |
1050 transition(ftos, vtos); | |
1051 __ movflt(faddress(n), xmm0); | |
1052 } | |
1053 | |
1054 void TemplateTable::dstore(int n) { | |
1055 transition(dtos, vtos); | |
1056 __ movdbl(daddress(n), xmm0); | |
1057 } | |
1058 | |
1059 void TemplateTable::astore(int n) { | |
1060 transition(vtos, vtos); | |
1506 | 1061 __ pop_ptr(rax); |
304 | 1062 __ movptr(aaddress(n), rax); |
0 | 1063 } |
1064 | |
1065 void TemplateTable::pop() { | |
1066 transition(vtos, vtos); | |
1506 | 1067 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1068 } |
1069 | |
1070 void TemplateTable::pop2() { | |
1071 transition(vtos, vtos); | |
1506 | 1072 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1073 } |
1074 | |
1075 void TemplateTable::dup() { | |
1076 transition(vtos, vtos); | |
1506 | 1077 __ load_ptr(0, rax); |
1078 __ push_ptr(rax); | |
0 | 1079 // stack: ..., a, a |
1080 } | |
1081 | |
1082 void TemplateTable::dup_x1() { | |
1083 transition(vtos, vtos); | |
1084 // stack: ..., a, b | |
1506 | 1085 __ load_ptr( 0, rax); // load b |
1086 __ load_ptr( 1, rcx); // load a | |
1087 __ store_ptr(1, rax); // store b | |
1088 __ store_ptr(0, rcx); // store a | |
1089 __ push_ptr(rax); // push b | |
0 | 1090 // stack: ..., b, a, b |
1091 } | |
1092 | |
1093 void TemplateTable::dup_x2() { | |
1094 transition(vtos, vtos); | |
1095 // stack: ..., a, b, c | |
1506 | 1096 __ load_ptr( 0, rax); // load c |
1097 __ load_ptr( 2, rcx); // load a | |
1098 __ store_ptr(2, rax); // store c in a | |
1099 __ push_ptr(rax); // push c | |
0 | 1100 // stack: ..., c, b, c, c |
1506 | 1101 __ load_ptr( 2, rax); // load b |
1102 __ store_ptr(2, rcx); // store a in b | |
0 | 1103 // stack: ..., c, a, c, c |
1506 | 1104 __ store_ptr(1, rax); // store b in c |
0 | 1105 // stack: ..., c, a, b, c |
1106 } | |
1107 | |
1108 void TemplateTable::dup2() { | |
1109 transition(vtos, vtos); | |
1110 // stack: ..., a, b | |
1506 | 1111 __ load_ptr(1, rax); // load a |
1112 __ push_ptr(rax); // push a | |
1113 __ load_ptr(1, rax); // load b | |
1114 __ push_ptr(rax); // push b | |
0 | 1115 // stack: ..., a, b, a, b |
1116 } | |
1117 | |
1118 void TemplateTable::dup2_x1() { | |
1119 transition(vtos, vtos); | |
1120 // stack: ..., a, b, c | |
1506 | 1121 __ load_ptr( 0, rcx); // load c |
1122 __ load_ptr( 1, rax); // load b | |
1123 __ push_ptr(rax); // push b | |
1124 __ push_ptr(rcx); // push c | |
0 | 1125 // stack: ..., a, b, c, b, c |
1506 | 1126 __ store_ptr(3, rcx); // store c in b |
0 | 1127 // stack: ..., a, c, c, b, c |
1506 | 1128 __ load_ptr( 4, rcx); // load a |
1129 __ store_ptr(2, rcx); // store a in 2nd c | |
0 | 1130 // stack: ..., a, c, a, b, c |
1506 | 1131 __ store_ptr(4, rax); // store b in a |
0 | 1132 // stack: ..., b, c, a, b, c |
1133 } | |
1134 | |
1135 void TemplateTable::dup2_x2() { | |
1136 transition(vtos, vtos); | |
1137 // stack: ..., a, b, c, d | |
1506 | 1138 __ load_ptr( 0, rcx); // load d |
1139 __ load_ptr( 1, rax); // load c | |
1140 __ push_ptr(rax); // push c | |
1141 __ push_ptr(rcx); // push d | |
0 | 1142 // stack: ..., a, b, c, d, c, d |
1506 | 1143 __ load_ptr( 4, rax); // load b |
1144 __ store_ptr(2, rax); // store b in d | |
1145 __ store_ptr(4, rcx); // store d in b | |
0 | 1146 // stack: ..., a, d, c, b, c, d |
1506 | 1147 __ load_ptr( 5, rcx); // load a |
1148 __ load_ptr( 3, rax); // load c | |
1149 __ store_ptr(3, rcx); // store a in c | |
1150 __ store_ptr(5, rax); // store c in a | |
0 | 1151 // stack: ..., c, d, a, b, c, d |
1152 } | |
1153 | |
1154 void TemplateTable::swap() { | |
1155 transition(vtos, vtos); | |
1156 // stack: ..., a, b | |
1506 | 1157 __ load_ptr( 1, rcx); // load a |
1158 __ load_ptr( 0, rax); // load b | |
1159 __ store_ptr(0, rcx); // store a in b | |
1160 __ store_ptr(1, rax); // store b in a | |
0 | 1161 // stack: ..., b, a |
1162 } | |
1163 | |
1164 void TemplateTable::iop2(Operation op) { | |
1165 transition(itos, itos); | |
1166 switch (op) { | |
1167 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
1168 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
1169 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
1170 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
1171 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
1172 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
1173 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
1174 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
1175 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
1176 default : ShouldNotReachHere(); | |
1177 } | |
1178 } | |
1179 | |
1180 void TemplateTable::lop2(Operation op) { | |
1181 transition(ltos, ltos); | |
1182 switch (op) { | |
1506 | 1183 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
1184 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
1185 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
1186 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
1187 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
1188 default : ShouldNotReachHere(); | |
0 | 1189 } |
1190 } | |
1191 | |
1192 void TemplateTable::idiv() { | |
1193 transition(itos, itos); | |
1194 __ movl(rcx, rax); | |
1195 __ pop_i(rax); | |
1196 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1197 // they are not equal, one could do a normal division (no correction | |
1198 // needed), which may speed up this implementation for the common case. | |
1199 // (see also JVM spec., p.243 & p.271) | |
1200 __ corrected_idivl(rcx); | |
1201 } | |
1202 | |
1203 void TemplateTable::irem() { | |
1204 transition(itos, itos); | |
1205 __ movl(rcx, rax); | |
1206 __ pop_i(rax); | |
1207 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1208 // they are not equal, one could do a normal division (no correction | |
1209 // needed), which may speed up this implementation for the common case. | |
1210 // (see also JVM spec., p.243 & p.271) | |
1211 __ corrected_idivl(rcx); | |
1212 __ movl(rax, rdx); | |
1213 } | |
1214 | |
1215 void TemplateTable::lmul() { | |
1216 transition(ltos, ltos); | |
1217 __ pop_l(rdx); | |
1218 __ imulq(rax, rdx); | |
1219 } | |
1220 | |
1221 void TemplateTable::ldiv() { | |
1222 transition(ltos, ltos); | |
304 | 1223 __ mov(rcx, rax); |
0 | 1224 __ pop_l(rax); |
1225 // generate explicit div0 check | |
1226 __ testq(rcx, rcx); | |
1227 __ jump_cc(Assembler::zero, | |
1228 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1229 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1230 // they are not equal, one could do a normal division (no correction | |
1231 // needed), which may speed up this implementation for the common case. | |
1232 // (see also JVM spec., p.243 & p.271) | |
1233 __ corrected_idivq(rcx); // kills rbx | |
1234 } | |
1235 | |
1236 void TemplateTable::lrem() { | |
1237 transition(ltos, ltos); | |
304 | 1238 __ mov(rcx, rax); |
0 | 1239 __ pop_l(rax); |
1240 __ testq(rcx, rcx); | |
1241 __ jump_cc(Assembler::zero, | |
1242 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1243 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1244 // they are not equal, one could do a normal division (no correction | |
1245 // needed), which may speed up this implementation for the common case. | |
1246 // (see also JVM spec., p.243 & p.271) | |
1247 __ corrected_idivq(rcx); // kills rbx | |
304 | 1248 __ mov(rax, rdx); |
0 | 1249 } |
1250 | |
1251 void TemplateTable::lshl() { | |
1252 transition(itos, ltos); | |
1253 __ movl(rcx, rax); // get shift count | |
1254 __ pop_l(rax); // get shift value | |
1255 __ shlq(rax); | |
1256 } | |
1257 | |
1258 void TemplateTable::lshr() { | |
1259 transition(itos, ltos); | |
1260 __ movl(rcx, rax); // get shift count | |
1261 __ pop_l(rax); // get shift value | |
1262 __ sarq(rax); | |
1263 } | |
1264 | |
1265 void TemplateTable::lushr() { | |
1266 transition(itos, ltos); | |
1267 __ movl(rcx, rax); // get shift count | |
1268 __ pop_l(rax); // get shift value | |
1269 __ shrq(rax); | |
1270 } | |
1271 | |
1272 void TemplateTable::fop2(Operation op) { | |
1273 transition(ftos, ftos); | |
1274 switch (op) { | |
1275 case add: | |
1276 __ addss(xmm0, at_rsp()); | |
1506 | 1277 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1278 break; |
1279 case sub: | |
1280 __ movflt(xmm1, xmm0); | |
1281 __ pop_f(xmm0); | |
1282 __ subss(xmm0, xmm1); | |
1283 break; | |
1284 case mul: | |
1285 __ mulss(xmm0, at_rsp()); | |
1506 | 1286 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1287 break; |
1288 case div: | |
1289 __ movflt(xmm1, xmm0); | |
1290 __ pop_f(xmm0); | |
1291 __ divss(xmm0, xmm1); | |
1292 break; | |
1293 case rem: | |
1294 __ movflt(xmm1, xmm0); | |
1295 __ pop_f(xmm0); | |
1296 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
1297 break; | |
1298 default: | |
1299 ShouldNotReachHere(); | |
1300 break; | |
1301 } | |
1302 } | |
1303 | |
1304 void TemplateTable::dop2(Operation op) { | |
1305 transition(dtos, dtos); | |
1306 switch (op) { | |
1307 case add: | |
1308 __ addsd(xmm0, at_rsp()); | |
1506 | 1309 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1310 break; |
1311 case sub: | |
1312 __ movdbl(xmm1, xmm0); | |
1313 __ pop_d(xmm0); | |
1314 __ subsd(xmm0, xmm1); | |
1315 break; | |
1316 case mul: | |
1317 __ mulsd(xmm0, at_rsp()); | |
1506 | 1318 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1319 break; |
1320 case div: | |
1321 __ movdbl(xmm1, xmm0); | |
1322 __ pop_d(xmm0); | |
1323 __ divsd(xmm0, xmm1); | |
1324 break; | |
1325 case rem: | |
1326 __ movdbl(xmm1, xmm0); | |
1327 __ pop_d(xmm0); | |
1328 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
1329 break; | |
1330 default: | |
1331 ShouldNotReachHere(); | |
1332 break; | |
1333 } | |
1334 } | |
1335 | |
1336 void TemplateTable::ineg() { | |
1337 transition(itos, itos); | |
1338 __ negl(rax); | |
1339 } | |
1340 | |
1341 void TemplateTable::lneg() { | |
1342 transition(ltos, ltos); | |
1343 __ negq(rax); | |
1344 } | |
1345 | |
1346 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
1347 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
1348 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
1349 // of 128-bits operands for SSE instructions. | |
1350 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
1351 // Store the value to a 128-bits operand. | |
1352 operand[0] = lo; | |
1353 operand[1] = hi; | |
1354 return operand; | |
1355 } | |
1356 | |
1357 // Buffer for 128-bits masks used by SSE instructions. | |
1358 static jlong float_signflip_pool[2*2]; | |
1359 static jlong double_signflip_pool[2*2]; | |
1360 | |
1361 void TemplateTable::fneg() { | |
1362 transition(ftos, ftos); | |
1363 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
1364 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
1365 } | |
1366 | |
1367 void TemplateTable::dneg() { | |
1368 transition(dtos, dtos); | |
1369 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
1370 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
1371 } | |
1372 | |
1373 void TemplateTable::iinc() { | |
1374 transition(vtos, vtos); | |
1375 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
1376 locals_index(rbx); | |
1377 __ addl(iaddress(rbx), rdx); | |
1378 } | |
1379 | |
1380 void TemplateTable::wide_iinc() { | |
1381 transition(vtos, vtos); | |
1382 __ movl(rdx, at_bcp(4)); // get constant | |
1383 locals_index_wide(rbx); | |
1384 __ bswapl(rdx); // swap bytes & sign-extend constant | |
1385 __ sarl(rdx, 16); | |
1386 __ addl(iaddress(rbx), rdx); | |
1387 // Note: should probably use only one movl to get both | |
1388 // the index and the constant -> fix this | |
1389 } | |
1390 | |
1391 void TemplateTable::convert() { | |
1392 // Checking | |
1393 #ifdef ASSERT | |
1394 { | |
1395 TosState tos_in = ilgl; | |
1396 TosState tos_out = ilgl; | |
1397 switch (bytecode()) { | |
1398 case Bytecodes::_i2l: // fall through | |
1399 case Bytecodes::_i2f: // fall through | |
1400 case Bytecodes::_i2d: // fall through | |
1401 case Bytecodes::_i2b: // fall through | |
1402 case Bytecodes::_i2c: // fall through | |
1403 case Bytecodes::_i2s: tos_in = itos; break; | |
1404 case Bytecodes::_l2i: // fall through | |
1405 case Bytecodes::_l2f: // fall through | |
1406 case Bytecodes::_l2d: tos_in = ltos; break; | |
1407 case Bytecodes::_f2i: // fall through | |
1408 case Bytecodes::_f2l: // fall through | |
1409 case Bytecodes::_f2d: tos_in = ftos; break; | |
1410 case Bytecodes::_d2i: // fall through | |
1411 case Bytecodes::_d2l: // fall through | |
1412 case Bytecodes::_d2f: tos_in = dtos; break; | |
1413 default : ShouldNotReachHere(); | |
1414 } | |
1415 switch (bytecode()) { | |
1416 case Bytecodes::_l2i: // fall through | |
1417 case Bytecodes::_f2i: // fall through | |
1418 case Bytecodes::_d2i: // fall through | |
1419 case Bytecodes::_i2b: // fall through | |
1420 case Bytecodes::_i2c: // fall through | |
1421 case Bytecodes::_i2s: tos_out = itos; break; | |
1422 case Bytecodes::_i2l: // fall through | |
1423 case Bytecodes::_f2l: // fall through | |
1424 case Bytecodes::_d2l: tos_out = ltos; break; | |
1425 case Bytecodes::_i2f: // fall through | |
1426 case Bytecodes::_l2f: // fall through | |
1427 case Bytecodes::_d2f: tos_out = ftos; break; | |
1428 case Bytecodes::_i2d: // fall through | |
1429 case Bytecodes::_l2d: // fall through | |
1430 case Bytecodes::_f2d: tos_out = dtos; break; | |
1431 default : ShouldNotReachHere(); | |
1432 } | |
1433 transition(tos_in, tos_out); | |
1434 } | |
1435 #endif // ASSERT | |
1436 | |
1437 static const int64_t is_nan = 0x8000000000000000L; | |
1438 | |
1439 // Conversion | |
1440 switch (bytecode()) { | |
1441 case Bytecodes::_i2l: | |
1442 __ movslq(rax, rax); | |
1443 break; | |
1444 case Bytecodes::_i2f: | |
1445 __ cvtsi2ssl(xmm0, rax); | |
1446 break; | |
1447 case Bytecodes::_i2d: | |
1448 __ cvtsi2sdl(xmm0, rax); | |
1449 break; | |
1450 case Bytecodes::_i2b: | |
1451 __ movsbl(rax, rax); | |
1452 break; | |
1453 case Bytecodes::_i2c: | |
1454 __ movzwl(rax, rax); | |
1455 break; | |
1456 case Bytecodes::_i2s: | |
1457 __ movswl(rax, rax); | |
1458 break; | |
1459 case Bytecodes::_l2i: | |
1460 __ movl(rax, rax); | |
1461 break; | |
1462 case Bytecodes::_l2f: | |
1463 __ cvtsi2ssq(xmm0, rax); | |
1464 break; | |
1465 case Bytecodes::_l2d: | |
1466 __ cvtsi2sdq(xmm0, rax); | |
1467 break; | |
1468 case Bytecodes::_f2i: | |
1469 { | |
1470 Label L; | |
1471 __ cvttss2sil(rax, xmm0); | |
1472 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1473 __ jcc(Assembler::notEqual, L); | |
1474 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
1475 __ bind(L); | |
1476 } | |
1477 break; | |
1478 case Bytecodes::_f2l: | |
1479 { | |
1480 Label L; | |
1481 __ cvttss2siq(rax, xmm0); | |
1482 // NaN or overflow/underflow? | |
1483 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1484 __ jcc(Assembler::notEqual, L); | |
1485 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
1486 __ bind(L); | |
1487 } | |
1488 break; | |
1489 case Bytecodes::_f2d: | |
1490 __ cvtss2sd(xmm0, xmm0); | |
1491 break; | |
1492 case Bytecodes::_d2i: | |
1493 { | |
1494 Label L; | |
1495 __ cvttsd2sil(rax, xmm0); | |
1496 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1497 __ jcc(Assembler::notEqual, L); | |
1498 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
1499 __ bind(L); | |
1500 } | |
1501 break; | |
1502 case Bytecodes::_d2l: | |
1503 { | |
1504 Label L; | |
1505 __ cvttsd2siq(rax, xmm0); | |
1506 // NaN or overflow/underflow? | |
1507 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1508 __ jcc(Assembler::notEqual, L); | |
1509 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
1510 __ bind(L); | |
1511 } | |
1512 break; | |
1513 case Bytecodes::_d2f: | |
1514 __ cvtsd2ss(xmm0, xmm0); | |
1515 break; | |
1516 default: | |
1517 ShouldNotReachHere(); | |
1518 } | |
1519 } | |
1520 | |
1521 void TemplateTable::lcmp() { | |
1522 transition(ltos, itos); | |
1523 Label done; | |
1524 __ pop_l(rdx); | |
1525 __ cmpq(rdx, rax); | |
1526 __ movl(rax, -1); | |
1527 __ jccb(Assembler::less, done); | |
1528 __ setb(Assembler::notEqual, rax); | |
1529 __ movzbl(rax, rax); | |
1530 __ bind(done); | |
1531 } | |
1532 | |
1533 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1534 Label done; | |
1535 if (is_float) { | |
1536 // XXX get rid of pop here, use ... reg, mem32 | |
1537 __ pop_f(xmm1); | |
1538 __ ucomiss(xmm1, xmm0); | |
1539 } else { | |
1540 // XXX get rid of pop here, use ... reg, mem64 | |
1541 __ pop_d(xmm1); | |
1542 __ ucomisd(xmm1, xmm0); | |
1543 } | |
1544 if (unordered_result < 0) { | |
1545 __ movl(rax, -1); | |
1546 __ jccb(Assembler::parity, done); | |
1547 __ jccb(Assembler::below, done); | |
1548 __ setb(Assembler::notEqual, rdx); | |
1549 __ movzbl(rax, rdx); | |
1550 } else { | |
1551 __ movl(rax, 1); | |
1552 __ jccb(Assembler::parity, done); | |
1553 __ jccb(Assembler::above, done); | |
1554 __ movl(rax, 0); | |
1555 __ jccb(Assembler::equal, done); | |
1556 __ decrementl(rax); | |
1557 } | |
1558 __ bind(done); | |
1559 } | |
1560 | |
1561 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1562 __ get_method(rcx); // rcx holds method | |
1563 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
1564 // holds bumped taken count | |
1565 | |
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1566 const ByteSize be_offset = Method::backedge_counter_offset() + |
0 | 1567 InvocationCounter::counter_offset(); |
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1568 const ByteSize inv_offset = Method::invocation_counter_offset() + |
0 | 1569 InvocationCounter::counter_offset(); |
1570 const int method_offset = frame::interpreter_frame_method_offset * wordSize; | |
1571 | |
1572 // Load up edx with the branch displacement | |
1573 __ movl(rdx, at_bcp(1)); | |
1574 __ bswapl(rdx); | |
1575 | |
1576 if (!is_wide) { | |
1577 __ sarl(rdx, 16); | |
1578 } | |
304 | 1579 __ movl2ptr(rdx, rdx); |
0 | 1580 |
1581 // Handle all the JSR stuff here, then exit. | |
1582 // It's much shorter and cleaner than intermingling with the non-JSR | |
605 | 1583 // normal-branch stuff occurring below. |
0 | 1584 if (is_jsr) { |
1585 // Pre-load the next target bytecode into rbx | |
1586 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
1587 | |
1588 // compute return address as bci in rax | |
304 | 1589 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1590 in_bytes(ConstMethod::codes_offset()))); |
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1591 __ subptr(rax, Address(rcx, Method::const_offset())); |
0 | 1592 // Adjust the bcp in r13 by the displacement in rdx |
304 | 1593 __ addptr(r13, rdx); |
0 | 1594 // jsr returns atos that is not an oop |
1595 __ push_i(rax); | |
1596 __ dispatch_only(vtos); | |
1597 return; | |
1598 } | |
1599 | |
1600 // Normal (non-jsr) branch handling | |
1601 | |
1602 // Adjust the bcp in r13 by the displacement in rdx | |
304 | 1603 __ addptr(r13, rdx); |
0 | 1604 |
1605 assert(UseLoopCounter || !UseOnStackReplacement, | |
1606 "on-stack-replacement requires loop counters"); | |
1607 Label backedge_counter_overflow; | |
1608 Label profile_method; | |
1609 Label dispatch; | |
1610 if (UseLoopCounter) { | |
1611 // increment backedge counter for backward branches | |
1612 // rax: MDO | |
1613 // ebx: MDO bumped taken-count | |
1614 // rcx: method | |
1615 // rdx: target offset | |
1616 // r13: target bcp | |
1617 // r14: locals pointer | |
1618 __ testl(rdx, rdx); // check if forward or backward branch | |
1619 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
1783 | 1620 if (TieredCompilation) { |
1621 Label no_mdo; | |
1622 int increment = InvocationCounter::count_increment; | |
1623 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1624 if (ProfileInterpreter) { | |
1625 // Are we profiling? | |
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1626 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
1783 | 1627 __ testptr(rbx, rbx); |
1628 __ jccb(Assembler::zero, no_mdo); | |
1629 // Increment the MDO backedge counter | |
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1630 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1631 in_bytes(InvocationCounter::counter_offset())); |
1632 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
1633 rax, false, Assembler::zero, &backedge_counter_overflow); | |
1634 __ jmp(dispatch); | |
0 | 1635 } |
1783 | 1636 __ bind(no_mdo); |
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1637 // Increment backedge counter in Method* |
1783 | 1638 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
1639 rax, false, Assembler::zero, &backedge_counter_overflow); | |
0 | 1640 } else { |
1783 | 1641 // increment counter |
1642 __ movl(rax, Address(rcx, be_offset)); // load backedge counter | |
1643 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
1644 __ movl(Address(rcx, be_offset), rax); // store counter | |
1645 | |
1646 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
1647 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits | |
1648 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
1649 | |
1650 if (ProfileInterpreter) { | |
1651 // Test to see if we should create a method data oop | |
0 | 1652 __ cmp32(rax, |
1783 | 1653 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
1654 __ jcc(Assembler::less, dispatch); | |
1655 | |
1656 // if no method data exists, go to profile method | |
1657 __ test_method_data_pointer(rax, profile_method); | |
1658 | |
1659 if (UseOnStackReplacement) { | |
1660 // check for overflow against ebx which is the MDO taken count | |
1661 __ cmp32(rbx, | |
1662 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1663 __ jcc(Assembler::below, dispatch); | |
1664 | |
1665 // When ProfileInterpreter is on, the backedge_count comes | |
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1666 // from the MethodData*, which value does not get reset on |
1783 | 1667 // the call to frequency_counter_overflow(). To avoid |
1668 // excessive calls to the overflow routine while the method is | |
1669 // being compiled, add a second test to make sure the overflow | |
1670 // function is called only once every overflow_frequency. | |
1671 const int overflow_frequency = 1024; | |
1672 __ andl(rbx, overflow_frequency - 1); | |
1673 __ jcc(Assembler::zero, backedge_counter_overflow); | |
1674 | |
1675 } | |
1676 } else { | |
1677 if (UseOnStackReplacement) { | |
1678 // check for overflow against eax, which is the sum of the | |
1679 // counters | |
1680 __ cmp32(rax, | |
1681 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1682 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
1683 | |
1684 } | |
0 | 1685 } |
1686 } | |
1687 __ bind(dispatch); | |
1688 } | |
1689 | |
1690 // Pre-load the next target bytecode into rbx | |
1691 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
1692 | |
1693 // continue with the bytecode @ target | |
1694 // eax: return bci for jsr's, unused otherwise | |
1695 // ebx: target bytecode | |
1696 // r13: target bcp | |
1697 __ dispatch_only(vtos); | |
1698 | |
1699 if (UseLoopCounter) { | |
1700 if (ProfileInterpreter) { | |
1701 // Out-of-line code to allocate method data oop. | |
1702 __ bind(profile_method); | |
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1703 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
0 | 1704 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1705 __ set_method_data_pointer_for_bcp(); |
0 | 1706 __ jmp(dispatch); |
1707 } | |
1708 | |
1709 if (UseOnStackReplacement) { | |
1710 // invocation counter overflow | |
1711 __ bind(backedge_counter_overflow); | |
304 | 1712 __ negptr(rdx); |
1713 __ addptr(rdx, r13); // branch bcp | |
0 | 1714 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
1715 __ call_VM(noreg, | |
1716 CAST_FROM_FN_PTR(address, | |
1717 InterpreterRuntime::frequency_counter_overflow), | |
1718 rdx); | |
1719 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
1720 | |
1721 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
1722 // ebx: target bytecode | |
1723 // rdx: scratch | |
1724 // r14: locals pointer | |
1725 // r13: bcp | |
304 | 1726 __ testptr(rax, rax); // test result |
0 | 1727 __ jcc(Assembler::zero, dispatch); // no osr if null |
1728 // nmethod may have been invalidated (VM may block upon call_VM return) | |
1729 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
1730 __ cmpl(rcx, InvalidOSREntryBci); | |
1731 __ jcc(Assembler::equal, dispatch); | |
1732 | |
1733 // We have the address of an on stack replacement routine in eax | |
1734 // We need to prepare to execute the OSR method. First we must | |
1735 // migrate the locals and monitors off of the stack. | |
1736 | |
304 | 1737 __ mov(r13, rax); // save the nmethod |
0 | 1738 |
1739 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
1740 | |
1741 // eax is OSR buffer, move it to expected parameter location | |
304 | 1742 __ mov(j_rarg0, rax); |
0 | 1743 |
1744 // We use j_rarg definitions here so that registers don't conflict as parameter | |
1745 // registers change across platforms as we are in the midst of a calling | |
1746 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
1747 | |
1748 const Register retaddr = j_rarg2; | |
1749 const Register sender_sp = j_rarg1; | |
1750 | |
1751 // pop the interpreter frame | |
304 | 1752 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
0 | 1753 __ leave(); // remove frame anchor |
304 | 1754 __ pop(retaddr); // get return address |
1755 __ mov(rsp, sender_sp); // set sp to sender sp | |
0 | 1756 // Ensure compiled code always sees stack at proper alignment |
304 | 1757 __ andptr(rsp, -(StackAlignmentInBytes)); |
0 | 1758 |
1759 // unlike x86 we need no specialized return from compiled code | |
1760 // to the interpreter or the call stub. | |
1761 | |
1762 // push the return address | |
304 | 1763 __ push(retaddr); |
0 | 1764 |
1765 // and begin the OSR nmethod | |
1766 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
1767 } | |
1768 } | |
1769 } | |
1770 | |
1771 | |
1772 void TemplateTable::if_0cmp(Condition cc) { | |
1773 transition(itos, vtos); | |
1774 // assume branch is more often taken than not (loops use backward branches) | |
1775 Label not_taken; | |
1776 __ testl(rax, rax); | |
1777 __ jcc(j_not(cc), not_taken); | |
1778 branch(false, false); | |
1779 __ bind(not_taken); | |
1780 __ profile_not_taken_branch(rax); | |
1781 } | |
1782 | |
1783 void TemplateTable::if_icmp(Condition cc) { | |
1784 transition(itos, vtos); | |
1785 // assume branch is more often taken than not (loops use backward branches) | |
1786 Label not_taken; | |
1787 __ pop_i(rdx); | |
1788 __ cmpl(rdx, rax); | |
1789 __ jcc(j_not(cc), not_taken); | |
1790 branch(false, false); | |
1791 __ bind(not_taken); | |
1792 __ profile_not_taken_branch(rax); | |
1793 } | |
1794 | |
1795 void TemplateTable::if_nullcmp(Condition cc) { | |
1796 transition(atos, vtos); | |
1797 // assume branch is more often taken than not (loops use backward branches) | |
1798 Label not_taken; | |
304 | 1799 __ testptr(rax, rax); |
0 | 1800 __ jcc(j_not(cc), not_taken); |
1801 branch(false, false); | |
1802 __ bind(not_taken); | |
1803 __ profile_not_taken_branch(rax); | |
1804 } | |
1805 | |
1806 void TemplateTable::if_acmp(Condition cc) { | |
1807 transition(atos, vtos); | |
1808 // assume branch is more often taken than not (loops use backward branches) | |
1809 Label not_taken; | |
1810 __ pop_ptr(rdx); | |
304 | 1811 __ cmpptr(rdx, rax); |
0 | 1812 __ jcc(j_not(cc), not_taken); |
1813 branch(false, false); | |
1814 __ bind(not_taken); | |
1815 __ profile_not_taken_branch(rax); | |
1816 } | |
1817 | |
1818 void TemplateTable::ret() { | |
1819 transition(vtos, vtos); | |
1820 locals_index(rbx); | |
304 | 1821 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
0 | 1822 __ profile_ret(rbx, rcx); |
1823 __ get_method(rax); | |
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1824 __ movptr(r13, Address(rax, Method::const_offset())); |
304 | 1825 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1826 ConstMethod::codes_offset())); |
0 | 1827 __ dispatch_next(vtos); |
1828 } | |
1829 | |
1830 void TemplateTable::wide_ret() { | |
1831 transition(vtos, vtos); | |
1832 locals_index_wide(rbx); | |
304 | 1833 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
0 | 1834 __ profile_ret(rbx, rcx); |
1835 __ get_method(rax); | |
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1836 __ movptr(r13, Address(rax, Method::const_offset())); |
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1837 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
0 | 1838 __ dispatch_next(vtos); |
1839 } | |
1840 | |
1841 void TemplateTable::tableswitch() { | |
1842 Label default_case, continue_execution; | |
1843 transition(itos, vtos); | |
1844 // align r13 | |
304 | 1845 __ lea(rbx, at_bcp(BytesPerInt)); |
1846 __ andptr(rbx, -BytesPerInt); | |
0 | 1847 // load lo & hi |
1848 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1849 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
1850 __ bswapl(rcx); | |
1851 __ bswapl(rdx); | |
1852 // check against lo & hi | |
1853 __ cmpl(rax, rcx); | |
1854 __ jcc(Assembler::less, default_case); | |
1855 __ cmpl(rax, rdx); | |
1856 __ jcc(Assembler::greater, default_case); | |
1857 // lookup dispatch offset | |
1858 __ subl(rax, rcx); | |
1859 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
1860 __ profile_switch_case(rax, rbx, rcx); | |
1861 // continue execution | |
1862 __ bind(continue_execution); | |
1863 __ bswapl(rdx); | |
304 | 1864 __ movl2ptr(rdx, rdx); |
0 | 1865 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1866 __ addptr(r13, rdx); |
0 | 1867 __ dispatch_only(vtos); |
1868 // handle default | |
1869 __ bind(default_case); | |
1870 __ profile_switch_default(rax); | |
1871 __ movl(rdx, Address(rbx, 0)); | |
1872 __ jmp(continue_execution); | |
1873 } | |
1874 | |
1875 void TemplateTable::lookupswitch() { | |
1876 transition(itos, itos); | |
1877 __ stop("lookupswitch bytecode should have been rewritten"); | |
1878 } | |
1879 | |
1880 void TemplateTable::fast_linearswitch() { | |
1881 transition(itos, vtos); | |
1882 Label loop_entry, loop, found, continue_execution; | |
1883 // bswap rax so we can avoid bswapping the table entries | |
1884 __ bswapl(rax); | |
1885 // align r13 | |
304 | 1886 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
1887 // this instruction (change offsets | |
1888 // below) | |
1889 __ andptr(rbx, -BytesPerInt); | |
0 | 1890 // set counter |
1891 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1892 __ bswapl(rcx); | |
1893 __ jmpb(loop_entry); | |
1894 // table search | |
1895 __ bind(loop); | |
1896 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
1897 __ jcc(Assembler::equal, found); | |
1898 __ bind(loop_entry); | |
1899 __ decrementl(rcx); | |
1900 __ jcc(Assembler::greaterEqual, loop); | |
1901 // default case | |
1902 __ profile_switch_default(rax); | |
1903 __ movl(rdx, Address(rbx, 0)); | |
1904 __ jmp(continue_execution); | |
1905 // entry found -> get offset | |
1906 __ bind(found); | |
1907 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
1908 __ profile_switch_case(rcx, rax, rbx); | |
1909 // continue execution | |
1910 __ bind(continue_execution); | |
1911 __ bswapl(rdx); | |
304 | 1912 __ movl2ptr(rdx, rdx); |
0 | 1913 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1914 __ addptr(r13, rdx); |
0 | 1915 __ dispatch_only(vtos); |
1916 } | |
1917 | |
1918 void TemplateTable::fast_binaryswitch() { | |
1919 transition(itos, vtos); | |
1920 // Implementation using the following core algorithm: | |
1921 // | |
1922 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1923 // // Binary search according to "Methodik des Programmierens" by | |
1924 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1925 // int i = 0; | |
1926 // int j = n; | |
1927 // while (i+1 < j) { | |
1928 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1929 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1930 // // where a stands for the array and assuming that the (inexisting) | |
1931 // // element a[n] is infinitely big. | |
1932 // int h = (i + j) >> 1; | |
1933 // // i < h < j | |
1934 // if (key < array[h].fast_match()) { | |
1935 // j = h; | |
1936 // } else { | |
1937 // i = h; | |
1938 // } | |
1939 // } | |
1940 // // R: a[i] <= key < a[i+1] or Q | |
1941 // // (i.e., if key is within array, i is the correct index) | |
1942 // return i; | |
1943 // } | |
1944 | |
1945 // Register allocation | |
1946 const Register key = rax; // already set (tosca) | |
1947 const Register array = rbx; | |
1948 const Register i = rcx; | |
1949 const Register j = rdx; | |
1950 const Register h = rdi; | |
1951 const Register temp = rsi; | |
1952 | |
1953 // Find array start | |
304 | 1954 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
1955 // get rid of this | |
1956 // instruction (change | |
1957 // offsets below) | |
1958 __ andptr(array, -BytesPerInt); | |
0 | 1959 |
1960 // Initialize i & j | |
1961 __ xorl(i, i); // i = 0; | |
1962 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
1963 | |
1964 // Convert j into native byteordering | |
1965 __ bswapl(j); | |
1966 | |
1967 // And start | |
1968 Label entry; | |
1969 __ jmp(entry); | |
1970 | |
1971 // binary search loop | |
1972 { | |
1973 Label loop; | |
1974 __ bind(loop); | |
1975 // int h = (i + j) >> 1; | |
1976 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
1977 __ sarl(h, 1); // h = (i + j) >> 1; | |
1978 // if (key < array[h].fast_match()) { | |
1979 // j = h; | |
1980 // } else { | |
1981 // i = h; | |
1982 // } | |
1983 // Convert array[h].match to native byte-ordering before compare | |
1984 __ movl(temp, Address(array, h, Address::times_8)); | |
1985 __ bswapl(temp); | |
1986 __ cmpl(key, temp); | |
1987 // j = h if (key < array[h].fast_match()) | |
1988 __ cmovl(Assembler::less, j, h); | |
1989 // i = h if (key >= array[h].fast_match()) | |
1990 __ cmovl(Assembler::greaterEqual, i, h); | |
1991 // while (i+1 < j) | |
1992 __ bind(entry); | |
1993 __ leal(h, Address(i, 1)); // i+1 | |
1994 __ cmpl(h, j); // i+1 < j | |
1995 __ jcc(Assembler::less, loop); | |
1996 } | |
1997 | |
1998 // end of binary search, result index is i (must check again!) | |
1999 Label default_case; | |
2000 // Convert array[i].match to native byte-ordering before compare | |
2001 __ movl(temp, Address(array, i, Address::times_8)); | |
2002 __ bswapl(temp); | |
2003 __ cmpl(key, temp); | |
2004 __ jcc(Assembler::notEqual, default_case); | |
2005 | |
2006 // entry found -> j = offset | |
2007 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
2008 __ profile_switch_case(i, key, array); | |
2009 __ bswapl(j); | |
304 | 2010 __ movl2ptr(j, j); |
0 | 2011 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2012 __ addptr(r13, j); |
0 | 2013 __ dispatch_only(vtos); |
2014 | |
2015 // default case -> j = default offset | |
2016 __ bind(default_case); | |
2017 __ profile_switch_default(i); | |
2018 __ movl(j, Address(array, -2 * BytesPerInt)); | |
2019 __ bswapl(j); | |
304 | 2020 __ movl2ptr(j, j); |
0 | 2021 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2022 __ addptr(r13, j); |
0 | 2023 __ dispatch_only(vtos); |
2024 } | |
2025 | |
2026 | |
2027 void TemplateTable::_return(TosState state) { | |
2028 transition(state, state); | |
2029 assert(_desc->calls_vm(), | |
2030 "inconsistent calls_vm information"); // call in remove_activation | |
2031 | |
2032 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2033 assert(state == vtos, "only valid state"); | |
304 | 2034 __ movptr(c_rarg1, aaddress(0)); |
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2035 __ load_klass(rdi, c_rarg1); |
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2036 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
0 | 2037 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
2038 Label skip_register_finalizer; | |
2039 __ jcc(Assembler::zero, skip_register_finalizer); | |
2040 | |
2041 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
2042 | |
2043 __ bind(skip_register_finalizer); | |
2044 } | |
2045 | |
2046 __ remove_activation(state, r13); | |
2047 __ jmp(r13); | |
2048 } | |
2049 | |
2050 // ---------------------------------------------------------------------------- | |
2051 // Volatile variables demand their effects be made known to all CPU's | |
2052 // in order. Store buffers on most chips allow reads & writes to | |
2053 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
2054 // without some kind of memory barrier (i.e., it's not sufficient that | |
2055 // the interpreter does not reorder volatile references, the hardware | |
2056 // also must not reorder them). | |
2057 // | |
2058 // According to the new Java Memory Model (JMM): | |
2059 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
2060 // writes act as aquire & release, so: | |
2061 // (2) A read cannot let unrelated NON-volatile memory refs that | |
2062 // happen after the read float up to before the read. It's OK for | |
2063 // non-volatile memory refs that happen before the volatile read to | |
2064 // float down below it. | |
2065 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
2066 // memory refs that happen BEFORE the write float down to after the | |
2067 // write. It's OK for non-volatile memory refs that happen after the | |
2068 // volatile write to float up before it. | |
2069 // | |
2070 // We only put in barriers around volatile refs (they are expensive), | |
2071 // not _between_ memory refs (that would require us to track the | |
2072 // flavor of the previous memory refs). Requirements (2) and (3) | |
2073 // require some barriers before volatile stores and after volatile | |
2074 // loads. These nearly cover requirement (1) but miss the | |
2075 // volatile-store-volatile-load case. This final case is placed after | |
2076 // volatile-stores although it could just as well go before | |
2077 // volatile-loads. | |
2078 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
2079 order_constraint) { | |
2080 // Helper function to insert a is-volatile test and memory barrier | |
2081 if (os::is_MP()) { // Not needed on single CPU | |
2082 __ membar(order_constraint); | |
2083 } | |
2084 } | |
2085 | |
1565 | 2086 void TemplateTable::resolve_cache_and_index(int byte_no, |
2087 Register Rcache, | |
2088 Register index, | |
2089 size_t index_size) { | |
0 | 2090 const Register temp = rbx; |
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2091 assert_different_registers(Rcache, index, temp); |
1565 | 2092 |
0 | 2093 Label resolved; |
1565 | 2094 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2095 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2096 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
1108 | 2097 __ jcc(Assembler::equal, resolved); |
0 | 2098 |
2099 // resolve first time through | |
2100 address entry; | |
2101 switch (bytecode()) { | |
2102 case Bytecodes::_getstatic: | |
2103 case Bytecodes::_putstatic: | |
2104 case Bytecodes::_getfield: | |
2105 case Bytecodes::_putfield: | |
2106 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
2107 break; | |
2108 case Bytecodes::_invokevirtual: | |
2109 case Bytecodes::_invokespecial: | |
2110 case Bytecodes::_invokestatic: | |
2111 case Bytecodes::_invokeinterface: | |
2112 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
2113 break; | |
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2114 case Bytecodes::_invokehandle: |
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2115 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2116 break; |
1108 | 2117 case Bytecodes::_invokedynamic: |
2118 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
2119 break; | |
0 | 2120 default: |
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2121 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
0 | 2122 break; |
2123 } | |
2124 __ movl(temp, (int) bytecode()); | |
2125 __ call_VM(noreg, entry, temp); | |
2126 | |
2127 // Update registers with resolved info | |
1565 | 2128 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2129 __ bind(resolved); |
2130 } | |
2131 | |
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2132 // The cache and index registers must be set before call |
0 | 2133 void TemplateTable::load_field_cp_cache_entry(Register obj, |
2134 Register cache, | |
2135 Register index, | |
2136 Register off, | |
2137 Register flags, | |
2138 bool is_static = false) { | |
2139 assert_different_registers(cache, index, flags, off); | |
2140 | |
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2141 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2142 // Field offset |
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2143 __ movptr(off, Address(cache, index, Address::times_ptr, |
304 | 2144 in_bytes(cp_base_offset + |
2145 ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2146 // Flags |
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2147 __ movl(flags, Address(cache, index, Address::times_ptr, |
0 | 2148 in_bytes(cp_base_offset + |
2149 ConstantPoolCacheEntry::flags_offset()))); | |
2150 | |
2151 // klass overwrite register | |
2152 if (is_static) { | |
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2153 __ movptr(obj, Address(cache, index, Address::times_ptr, |
304 | 2154 in_bytes(cp_base_offset + |
2155 ConstantPoolCacheEntry::f1_offset()))); | |
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2156 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2157 __ movptr(obj, Address(obj, mirror_offset)); |
0 | 2158 } |
2159 } | |
2160 | |
2161 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
2162 Register method, | |
2163 Register itable_index, | |
2164 Register flags, | |
2165 bool is_invokevirtual, | |
1565 | 2166 bool is_invokevfinal, /*unused*/ |
2167 bool is_invokedynamic) { | |
0 | 2168 // setup registers |
2169 const Register cache = rcx; | |
2170 const Register index = rdx; | |
2171 assert_different_registers(method, flags); | |
2172 assert_different_registers(method, cache, index); | |
2173 assert_different_registers(itable_index, flags); | |
2174 assert_different_registers(itable_index, cache, index); | |
2175 // determine constant pool cache field offsets | |
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2176 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2177 const int method_offset = in_bytes( |
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2178 ConstantPoolCache::base_offset() + |
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2179 ((byte_no == f2_byte) |
0 | 2180 ? ConstantPoolCacheEntry::f2_offset() |
2181 : ConstantPoolCacheEntry::f1_offset())); | |
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2182 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2183 ConstantPoolCacheEntry::flags_offset()); |
2184 // access constant pool cache fields | |
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2185 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2186 ConstantPoolCacheEntry::f2_offset()); |
2187 | |
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2188 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2189 resolve_cache_and_index(byte_no, cache, index, index_size); |
1565 | 2190 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2191 |
0 | 2192 if (itable_index != noreg) { |
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2193 // pick up itable or appendix index from f2 also: |
1565 | 2194 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
0 | 2195 } |
1565 | 2196 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
0 | 2197 } |
2198 | |
2199 // Correct values of the cache and index registers are preserved. | |
2200 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
2201 bool is_static, bool has_tos) { | |
2202 // do the JVMTI work here to avoid disturbing the register state below | |
2203 // We use c_rarg registers here because we want to use the register used in | |
2204 // the call to the VM | |
2205 if (JvmtiExport::can_post_field_access()) { | |
2206 // Check to see if a field access watch has been set before we | |
2207 // take the time to call into the VM. | |
2208 Label L1; | |
2209 assert_different_registers(cache, index, rax); | |
2210 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2211 __ testl(rax, rax); | |
2212 __ jcc(Assembler::zero, L1); | |
2213 | |
2214 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
2215 | |
2216 // cache entry pointer | |
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2217 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
0 | 2218 __ shll(c_rarg3, LogBytesPerWord); |
304 | 2219 __ addptr(c_rarg2, c_rarg3); |
0 | 2220 if (is_static) { |
2221 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
2222 } else { | |
304 | 2223 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
0 | 2224 __ verify_oop(c_rarg1); |
2225 } | |
2226 // c_rarg1: object pointer or NULL | |
2227 // c_rarg2: cache entry pointer | |
2228 // c_rarg3: jvalue object on the stack | |
2229 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
2230 InterpreterRuntime::post_field_access), | |
2231 c_rarg1, c_rarg2, c_rarg3); | |
2232 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2233 __ bind(L1); | |
2234 } | |
2235 } | |
2236 | |
2237 void TemplateTable::pop_and_check_object(Register r) { | |
2238 __ pop_ptr(r); | |
2239 __ null_check(r); // for field access must check obj. | |
2240 __ verify_oop(r); | |
2241 } | |
2242 | |
2243 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2244 transition(vtos, vtos); | |
2245 | |
2246 const Register cache = rcx; | |
2247 const Register index = rdx; | |
2248 const Register obj = c_rarg3; | |
2249 const Register off = rbx; | |
2250 const Register flags = rax; | |
2251 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
2252 | |
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2253 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2254 jvmti_post_field_access(cache, index, is_static, false); |
2255 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2256 | |
2257 if (!is_static) { | |
2258 // obj is on the stack | |
2259 pop_and_check_object(obj); | |
2260 } | |
2261 | |
2262 const Address field(obj, off, Address::times_1); | |
2263 | |
2264 Label Done, notByte, notInt, notShort, notChar, | |
2265 notLong, notFloat, notObj, notDouble; | |
2266 | |
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2267 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2268 // Make sure we don't need to mask edx after the above shift |
0 | 2269 assert(btos == 0, "change code, btos != 0"); |
2270 | |
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2271 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2272 __ jcc(Assembler::notZero, notByte); |
2273 // btos | |
2274 __ load_signed_byte(rax, field); | |
2275 __ push(btos); | |
2276 // Rewrite bytecode to be faster | |
2277 if (!is_static) { | |
2278 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
2279 } | |
2280 __ jmp(Done); | |
2281 | |
2282 __ bind(notByte); | |
2283 __ cmpl(flags, atos); | |
2284 __ jcc(Assembler::notEqual, notObj); | |
2285 // atos | |
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2286 __ load_heap_oop(rax, field); |
0 | 2287 __ push(atos); |
2288 if (!is_static) { | |
2289 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
2290 } | |
2291 __ jmp(Done); | |
2292 | |
2293 __ bind(notObj); | |
2294 __ cmpl(flags, itos); | |
2295 __ jcc(Assembler::notEqual, notInt); | |
2296 // itos | |
2297 __ movl(rax, field); | |
2298 __ push(itos); | |
2299 // Rewrite bytecode to be faster | |
2300 if (!is_static) { | |
2301 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
2302 } | |
2303 __ jmp(Done); | |
2304 | |
2305 __ bind(notInt); | |
2306 __ cmpl(flags, ctos); | |
2307 __ jcc(Assembler::notEqual, notChar); | |
2308 // ctos | |
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2309 __ load_unsigned_short(rax, field); |
0 | 2310 __ push(ctos); |
2311 // Rewrite bytecode to be faster | |
2312 if (!is_static) { | |
2313 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
2314 } | |
2315 __ jmp(Done); | |
2316 | |
2317 __ bind(notChar); | |
2318 __ cmpl(flags, stos); | |
2319 __ jcc(Assembler::notEqual, notShort); | |
2320 // stos | |
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2321 __ load_signed_short(rax, field); |
0 | 2322 __ push(stos); |
2323 // Rewrite bytecode to be faster | |
2324 if (!is_static) { | |
2325 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
2326 } | |
2327 __ jmp(Done); | |
2328 | |
2329 __ bind(notShort); | |
2330 __ cmpl(flags, ltos); | |
2331 __ jcc(Assembler::notEqual, notLong); | |
2332 // ltos | |
2333 __ movq(rax, field); | |
2334 __ push(ltos); | |
2335 // Rewrite bytecode to be faster | |
2336 if (!is_static) { | |
2337 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
2338 } | |
2339 __ jmp(Done); | |
2340 | |
2341 __ bind(notLong); | |
2342 __ cmpl(flags, ftos); | |
2343 __ jcc(Assembler::notEqual, notFloat); | |
2344 // ftos | |
2345 __ movflt(xmm0, field); | |
2346 __ push(ftos); | |
2347 // Rewrite bytecode to be faster | |
2348 if (!is_static) { | |
2349 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
2350 } | |
2351 __ jmp(Done); | |
2352 | |
2353 __ bind(notFloat); | |
2354 #ifdef ASSERT | |
2355 __ cmpl(flags, dtos); | |
2356 __ jcc(Assembler::notEqual, notDouble); | |
2357 #endif | |
2358 // dtos | |
2359 __ movdbl(xmm0, field); | |
2360 __ push(dtos); | |
2361 // Rewrite bytecode to be faster | |
2362 if (!is_static) { | |
2363 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
2364 } | |
2365 #ifdef ASSERT | |
2366 __ jmp(Done); | |
2367 | |
2368 __ bind(notDouble); | |
2369 __ stop("Bad state"); | |
2370 #endif | |
2371 | |
2372 __ bind(Done); | |
2373 // [jk] not needed currently | |
2374 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
2375 // Assembler::LoadStore)); | |
2376 } | |
2377 | |
2378 | |
2379 void TemplateTable::getfield(int byte_no) { | |
2380 getfield_or_static(byte_no, false); | |
2381 } | |
2382 | |
2383 void TemplateTable::getstatic(int byte_no) { | |
2384 getfield_or_static(byte_no, true); | |
2385 } | |
2386 | |
2387 // The registers cache and index expected to be set before call. | |
2388 // The function may destroy various registers, just not the cache and index registers. | |
2389 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
2390 transition(vtos, vtos); | |
2391 | |
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2392 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2393 |
2394 if (JvmtiExport::can_post_field_modification()) { | |
2395 // Check to see if a field modification watch has been set before | |
2396 // we take the time to call into the VM. | |
2397 Label L1; | |
2398 assert_different_registers(cache, index, rax); | |
2399 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2400 __ testl(rax, rax); | |
2401 __ jcc(Assembler::zero, L1); | |
2402 | |
2403 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
2404 | |
2405 if (is_static) { | |
2406 // Life is simple. Null out the object pointer. | |
2407 __ xorl(c_rarg1, c_rarg1); | |
2408 } else { | |
2409 // Life is harder. The stack holds the value on top, followed by | |
2410 // the object. We don't know the size of the value, though; it | |
2411 // could be one or two words depending on its type. As a result, | |
2412 // we must find the type to determine where the object is. | |
2413 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
2414 Address::times_8, | |
2415 in_bytes(cp_base_offset + | |
2416 ConstantPoolCacheEntry::flags_offset()))); | |
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2417 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2418 // Make sure we don't need to mask rcx after the above shift |
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2419 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 2420 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
0 | 2421 __ cmpl(c_rarg3, ltos); |
304 | 2422 __ cmovptr(Assembler::equal, |
2423 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
0 | 2424 __ cmpl(c_rarg3, dtos); |
304 | 2425 __ cmovptr(Assembler::equal, |
2426 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
0 | 2427 } |
2428 // cache entry pointer | |
304 | 2429 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
0 | 2430 __ shll(rscratch1, LogBytesPerWord); |
304 | 2431 __ addptr(c_rarg2, rscratch1); |
0 | 2432 // object (tos) |
304 | 2433 __ mov(c_rarg3, rsp); |
0 | 2434 // c_rarg1: object pointer set up above (NULL if static) |
2435 // c_rarg2: cache entry pointer | |
2436 // c_rarg3: jvalue object on the stack | |
2437 __ call_VM(noreg, | |
2438 CAST_FROM_FN_PTR(address, | |
2439 InterpreterRuntime::post_field_modification), | |
2440 c_rarg1, c_rarg2, c_rarg3); | |
2441 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2442 __ bind(L1); | |
2443 } | |
2444 } | |
2445 | |
2446 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2447 transition(vtos, vtos); | |
2448 | |
2449 const Register cache = rcx; | |
2450 const Register index = rdx; | |
2451 const Register obj = rcx; | |
2452 const Register off = rbx; | |
2453 const Register flags = rax; | |
2454 const Register bc = c_rarg3; | |
2455 | |
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2456 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2457 jvmti_post_field_mod(cache, index, is_static); |
2458 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2459 | |
2460 // [jk] not needed currently | |
2461 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2462 // Assembler::StoreStore)); | |
2463 | |
2464 Label notVolatile, Done; | |
2465 __ movl(rdx, flags); | |
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2466 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2467 __ andl(rdx, 0x1); |
2468 | |
2469 // field address | |
2470 const Address field(obj, off, Address::times_1); | |
2471 | |
2472 Label notByte, notInt, notShort, notChar, | |
2473 notLong, notFloat, notObj, notDouble; | |
2474 | |
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2475 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
0 | 2476 |
2477 assert(btos == 0, "change code, btos != 0"); | |
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2478 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2479 __ jcc(Assembler::notZero, notByte); |
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2480 |
0 | 2481 // btos |
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2482 { |
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2483 __ pop(btos); |
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2484 if (!is_static) pop_and_check_object(obj); |
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2485 __ movb(field, rax); |
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2486 if (!is_static) { |
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2487 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2488 } |
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2489 __ jmp(Done); |
0 | 2490 } |
2491 | |
2492 __ bind(notByte); | |
2493 __ cmpl(flags, atos); | |
2494 __ jcc(Assembler::notEqual, notObj); | |
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2495 |
0 | 2496 // atos |
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2497 { |
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2498 __ pop(atos); |
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2499 if (!is_static) pop_and_check_object(obj); |
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2500 // Store into the field |
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2501 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2502 if (!is_static) { |
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2503 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2504 } |
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2505 __ jmp(Done); |
0 | 2506 } |
2507 | |
2508 __ bind(notObj); | |
2509 __ cmpl(flags, itos); | |
2510 __ jcc(Assembler::notEqual, notInt); | |
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2511 |
0 | 2512 // itos |
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2513 { |
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2514 __ pop(itos); |
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2515 if (!is_static) pop_and_check_object(obj); |
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2516 __ movl(field, rax); |
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2517 if (!is_static) { |
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2518 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2519 } |
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2520 __ jmp(Done); |
0 | 2521 } |
2522 | |
2523 __ bind(notInt); | |
2524 __ cmpl(flags, ctos); | |
2525 __ jcc(Assembler::notEqual, notChar); | |
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2526 |
0 | 2527 // ctos |
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2528 { |
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2529 __ pop(ctos); |
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2530 if (!is_static) pop_and_check_object(obj); |
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2531 __ movw(field, rax); |
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2532 if (!is_static) { |
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2533 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2534 } |
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2535 __ jmp(Done); |
0 | 2536 } |
2537 | |
2538 __ bind(notChar); | |
2539 __ cmpl(flags, stos); | |
2540 __ jcc(Assembler::notEqual, notShort); | |
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2541 |
0 | 2542 // stos |
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2543 { |
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2544 __ pop(stos); |
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2545 if (!is_static) pop_and_check_object(obj); |
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2546 __ movw(field, rax); |
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2547 if (!is_static) { |
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2548 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
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2549 } |
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2550 __ jmp(Done); |
0 | 2551 } |
2552 | |
2553 __ bind(notShort); | |
2554 __ cmpl(flags, ltos); | |
2555 __ jcc(Assembler::notEqual, notLong); | |
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2556 |
0 | 2557 // ltos |
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2558 { |
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2559 __ pop(ltos); |
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2560 if (!is_static) pop_and_check_object(obj); |
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2561 __ movq(field, rax); |
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2562 if (!is_static) { |
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2563 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
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2564 } |
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2565 __ jmp(Done); |
0 | 2566 } |
2567 | |
2568 __ bind(notLong); | |
2569 __ cmpl(flags, ftos); | |
2570 __ jcc(Assembler::notEqual, notFloat); | |
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2571 |
0 | 2572 // ftos |
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2573 { |
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2574 __ pop(ftos); |
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2575 if (!is_static) pop_and_check_object(obj); |
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2576 __ movflt(field, xmm0); |
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2577 if (!is_static) { |
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2578 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
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2579 } |
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2580 __ jmp(Done); |
0 | 2581 } |
2582 | |
2583 __ bind(notFloat); | |
2584 #ifdef ASSERT | |
2585 __ cmpl(flags, dtos); | |
2586 __ jcc(Assembler::notEqual, notDouble); | |
2587 #endif | |
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2588 |
0 | 2589 // dtos |
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2590 { |
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2591 __ pop(dtos); |
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2592 if (!is_static) pop_and_check_object(obj); |
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2593 __ movdbl(field, xmm0); |
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2594 if (!is_static) { |
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2595 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
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2596 } |
0 | 2597 } |
2598 | |
2599 #ifdef ASSERT | |
2600 __ jmp(Done); | |
2601 | |
2602 __ bind(notDouble); | |
2603 __ stop("Bad state"); | |
2604 #endif | |
2605 | |
2606 __ bind(Done); | |
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2607 |
0 | 2608 // Check for volatile store |
2609 __ testl(rdx, rdx); | |
2610 __ jcc(Assembler::zero, notVolatile); | |
2611 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2612 Assembler::StoreStore)); | |
2613 __ bind(notVolatile); | |
2614 } | |
2615 | |
2616 void TemplateTable::putfield(int byte_no) { | |
2617 putfield_or_static(byte_no, false); | |
2618 } | |
2619 | |
2620 void TemplateTable::putstatic(int byte_no) { | |
2621 putfield_or_static(byte_no, true); | |
2622 } | |
2623 | |
2624 void TemplateTable::jvmti_post_fast_field_mod() { | |
2625 if (JvmtiExport::can_post_field_modification()) { | |
2626 // Check to see if a field modification watch has been set before | |
2627 // we take the time to call into the VM. | |
2628 Label L2; | |
2629 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2630 __ testl(c_rarg3, c_rarg3); | |
2631 __ jcc(Assembler::zero, L2); | |
2632 __ pop_ptr(rbx); // copy the object pointer from tos | |
2633 __ verify_oop(rbx); | |
2634 __ push_ptr(rbx); // put the object pointer back on tos | |
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2635 // Save tos values before call_VM() clobbers them. Since we have |
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2636 // to do it for every data type, we use the saved values as the |
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2637 // jvalue object. |
0 | 2638 switch (bytecode()) { // load values into the jvalue object |
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2639 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
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2640 case Bytecodes::_fast_bputfield: // fall through |
0 | 2641 case Bytecodes::_fast_sputfield: // fall through |
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2642 case Bytecodes::_fast_cputfield: // fall through |
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2643 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
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2644 case Bytecodes::_fast_dputfield: __ push_d(); break; |
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2645 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2646 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
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2647 |
0 | 2648 default: |
2649 ShouldNotReachHere(); | |
2650 } | |
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2651 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
0 | 2652 // access constant pool cache entry |
2653 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
2654 __ verify_oop(rbx); | |
2655 // rbx: object pointer copied above | |
2656 // c_rarg2: cache entry pointer | |
2657 // c_rarg3: jvalue object on the stack | |
2658 __ call_VM(noreg, | |
2659 CAST_FROM_FN_PTR(address, | |
2660 InterpreterRuntime::post_field_modification), | |
2661 rbx, c_rarg2, c_rarg3); | |
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2662 |
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2663 switch (bytecode()) { // restore tos values |
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2664 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
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2665 case Bytecodes::_fast_bputfield: // fall through |
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2666 case Bytecodes::_fast_sputfield: // fall through |
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2667 case Bytecodes::_fast_cputfield: // fall through |
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2668 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
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2669 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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2670 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2671 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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2672 } |
0 | 2673 __ bind(L2); |
2674 } | |
2675 } | |
2676 | |
2677 void TemplateTable::fast_storefield(TosState state) { | |
2678 transition(state, vtos); | |
2679 | |
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2680 ByteSize base = ConstantPoolCache::base_offset(); |
0 | 2681 |
2682 jvmti_post_fast_field_mod(); | |
2683 | |
2684 // access constant pool cache | |
2685 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2686 | |
2687 // test for volatile with rdx | |
2688 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
2689 in_bytes(base + | |
2690 ConstantPoolCacheEntry::flags_offset()))); | |
2691 | |
2692 // replace index with field offset from cache entry | |
304 | 2693 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
2694 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2695 |
2696 // [jk] not needed currently | |
2697 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2698 // Assembler::StoreStore)); | |
2699 | |
2700 Label notVolatile; | |
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2701 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2702 __ andl(rdx, 0x1); |
2703 | |
2704 // Get object from stack | |
2705 pop_and_check_object(rcx); | |
2706 | |
2707 // field address | |
2708 const Address field(rcx, rbx, Address::times_1); | |
2709 | |
2710 // access field | |
2711 switch (bytecode()) { | |
2712 case Bytecodes::_fast_aputfield: | |
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2713 do_oop_store(_masm, field, rax, _bs->kind(), false); |
0 | 2714 break; |
2715 case Bytecodes::_fast_lputfield: | |
2716 __ movq(field, rax); | |
2717 break; | |
2718 case Bytecodes::_fast_iputfield: | |
2719 __ movl(field, rax); | |
2720 break; | |
2721 case Bytecodes::_fast_bputfield: | |
2722 __ movb(field, rax); | |
2723 break; | |
2724 case Bytecodes::_fast_sputfield: | |
2725 // fall through | |
2726 case Bytecodes::_fast_cputfield: | |
2727 __ movw(field, rax); | |
2728 break; | |
2729 case Bytecodes::_fast_fputfield: | |
2730 __ movflt(field, xmm0); | |
2731 break; | |
2732 case Bytecodes::_fast_dputfield: | |
2733 __ movdbl(field, xmm0); | |
2734 break; | |
2735 default: | |
2736 ShouldNotReachHere(); | |
2737 } | |
2738 | |
2739 // Check for volatile store | |
2740 __ testl(rdx, rdx); | |
2741 __ jcc(Assembler::zero, notVolatile); | |
2742 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2743 Assembler::StoreStore)); | |
2744 __ bind(notVolatile); | |
2745 } | |
2746 | |
2747 | |
2748 void TemplateTable::fast_accessfield(TosState state) { | |
2749 transition(atos, state); | |
2750 | |
2751 // Do the JVMTI work here to avoid disturbing the register state below | |
2752 if (JvmtiExport::can_post_field_access()) { | |
2753 // Check to see if a field access watch has been set before we | |
2754 // take the time to call into the VM. | |
2755 Label L1; | |
2756 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2757 __ testl(rcx, rcx); | |
2758 __ jcc(Assembler::zero, L1); | |
2759 // access constant pool cache entry | |
2760 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
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2761 __ verify_oop(rax); |
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2762 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
304 | 2763 __ mov(c_rarg1, rax); |
0 | 2764 // c_rarg1: object pointer copied above |
2765 // c_rarg2: cache entry pointer | |
2766 __ call_VM(noreg, | |
2767 CAST_FROM_FN_PTR(address, | |
2768 InterpreterRuntime::post_field_access), | |
2769 c_rarg1, c_rarg2); | |
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2770 __ pop_ptr(rax); // restore object pointer |
0 | 2771 __ bind(L1); |
2772 } | |
2773 | |
2774 // access constant pool cache | |
2775 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2776 // replace index with field offset from cache entry | |
2777 // [jk] not needed currently | |
2778 // if (os::is_MP()) { | |
2779 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
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2780 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2781 // ConstantPoolCacheEntry::flags_offset()))); |
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2782 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2783 // __ andl(rdx, 0x1); |
2784 // } | |
304 | 2785 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
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2786 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2787 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2788 |
2789 // rax: object | |
2790 __ verify_oop(rax); | |
2791 __ null_check(rax); | |
2792 Address field(rax, rbx, Address::times_1); | |
2793 | |
2794 // access field | |
2795 switch (bytecode()) { | |
2796 case Bytecodes::_fast_agetfield: | |
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2797 __ load_heap_oop(rax, field); |
0 | 2798 __ verify_oop(rax); |
2799 break; | |
2800 case Bytecodes::_fast_lgetfield: | |
2801 __ movq(rax, field); | |
2802 break; | |
2803 case Bytecodes::_fast_igetfield: | |
2804 __ movl(rax, field); | |
2805 break; | |
2806 case Bytecodes::_fast_bgetfield: | |
2807 __ movsbl(rax, field); | |
2808 break; | |
2809 case Bytecodes::_fast_sgetfield: | |
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2810 __ load_signed_short(rax, field); |
0 | 2811 break; |
2812 case Bytecodes::_fast_cgetfield: | |
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2813 __ load_unsigned_short(rax, field); |
0 | 2814 break; |
2815 case Bytecodes::_fast_fgetfield: | |
2816 __ movflt(xmm0, field); | |
2817 break; | |
2818 case Bytecodes::_fast_dgetfield: | |
2819 __ movdbl(xmm0, field); | |
2820 break; | |
2821 default: | |
2822 ShouldNotReachHere(); | |
2823 } | |
2824 // [jk] not needed currently | |
2825 // if (os::is_MP()) { | |
2826 // Label notVolatile; | |
2827 // __ testl(rdx, rdx); | |
2828 // __ jcc(Assembler::zero, notVolatile); | |
2829 // __ membar(Assembler::LoadLoad); | |
2830 // __ bind(notVolatile); | |
2831 //}; | |
2832 } | |
2833 | |
2834 void TemplateTable::fast_xaccess(TosState state) { | |
2835 transition(vtos, state); | |
2836 | |
2837 // get receiver | |
304 | 2838 __ movptr(rax, aaddress(0)); |
0 | 2839 // access constant pool cache |
2840 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
304 | 2841 __ movptr(rbx, |
2842 Address(rcx, rdx, Address::times_8, | |
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2843 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2844 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2845 // make sure exception is reported in correct bcp range (getfield is |
2846 // next instruction) | |
304 | 2847 __ increment(r13); |
0 | 2848 __ null_check(rax); |
2849 switch (state) { | |
2850 case itos: | |
2851 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
2852 break; | |
2853 case atos: | |
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2854 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
0 | 2855 __ verify_oop(rax); |
2856 break; | |
2857 case ftos: | |
2858 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
2859 break; | |
2860 default: | |
2861 ShouldNotReachHere(); | |
2862 } | |
2863 | |
2864 // [jk] not needed currently | |
2865 // if (os::is_MP()) { | |
2866 // Label notVolatile; | |
2867 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
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2868 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2869 // ConstantPoolCacheEntry::flags_offset()))); |
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2870 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2871 // __ testl(rdx, 0x1); |
2872 // __ jcc(Assembler::zero, notVolatile); | |
2873 // __ membar(Assembler::LoadLoad); | |
2874 // __ bind(notVolatile); | |
2875 // } | |
2876 | |
304 | 2877 __ decrement(r13); |
0 | 2878 } |
2879 | |
2880 | |
2881 | |
2882 //----------------------------------------------------------------------------- | |
2883 // Calls | |
2884 | |
2885 void TemplateTable::count_calls(Register method, Register temp) { | |
2886 // implemented elsewhere | |
2887 ShouldNotReachHere(); | |
2888 } | |
2889 | |
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2890 void TemplateTable::prepare_invoke(int byte_no, |
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2891 Register method, // linked method (or i-klass) |
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2892 Register index, // itable index, MethodType, etc. |
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2893 Register recv, // if caller wants to see it |
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2894 Register flags // if caller wants to test it |
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2895 ) { |
0 | 2896 // determine flags |
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2897 const Bytecodes::Code code = bytecode(); |
0 | 2898 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
1108 | 2899 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2900 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
0 | 2901 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
2902 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
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2903 const bool load_receiver = (recv != noreg); |
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2904 const bool save_flags = (flags != noreg); |
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2905 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2906 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
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2907 assert(flags == noreg || flags == rdx, ""); |
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2908 assert(recv == noreg || recv == rcx, ""); |
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2909 |
0 | 2910 // setup registers & access constant pool cache |
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2911 if (recv == noreg) recv = rcx; |
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2912 if (flags == noreg) flags = rdx; |
0 | 2913 assert_different_registers(method, index, recv, flags); |
2914 | |
2915 // save 'interpreter return address' | |
2916 __ save_bcp(); | |
2917 | |
1565 | 2918 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
0 | 2919 |
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2920 // maybe push appendix to arguments (just before return address) |
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2921 if (is_invokedynamic || is_invokehandle) { |
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2922 Label L_no_push; |
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2923 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
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2924 __ jcc(Assembler::zero, L_no_push); |
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2925 // Push the appendix as a trailing parameter. |
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2926 // This must be done before we get the receiver, |
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2927 // since the parameter_size includes it. |
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2928 __ push(rbx); |
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2929 __ mov(rbx, index); |
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2930 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2931 __ load_resolved_reference_at_index(index, rbx); |
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2932 __ pop(rbx); |
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2933 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2934 __ bind(L_no_push); |
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2935 } |
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2936 |
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2937 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2938 // Note: no return address pushed yet |
0 | 2939 if (load_receiver) { |
2940 __ movl(recv, flags); | |
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2941 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2942 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2943 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2944 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
1304 | 2945 __ movptr(recv, recv_addr); |
2946 __ verify_oop(recv); | |
0 | 2947 } |
2948 | |
2949 if (save_flags) { | |
2950 __ movl(r13, flags); | |
2951 } | |
2952 | |
2953 // compute return type | |
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2954 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2955 // Make sure we don't need to mask flags after the above shift |
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2956 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2957 // load return address |
2958 { | |
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2959 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2960 (address)Interpreter::return_5_addrs_by_index_table() : |
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2961 (address)Interpreter::return_3_addrs_by_index_table(); |
1108 | 2962 ExternalAddress table(table_addr); |
2963 __ lea(rscratch1, table); | |
2964 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
0 | 2965 } |
2966 | |
2967 // push return address | |
304 | 2968 __ push(flags); |
0 | 2969 |
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2970 // Restore flags value from the constant pool cache, and restore rsi |
0 | 2971 // for later null checks. r13 is the bytecode pointer |
2972 if (save_flags) { | |
2973 __ movl(flags, r13); | |
2974 __ restore_bcp(); | |
2975 } | |
2976 } | |
2977 | |
2978 | |
2979 void TemplateTable::invokevirtual_helper(Register index, | |
2980 Register recv, | |
2981 Register flags) { | |
1783 | 2982 // Uses temporary registers rax, rdx |
2983 assert_different_registers(index, recv, rax, rdx); | |
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2984 assert(index == rbx, ""); |
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2985 assert(recv == rcx, ""); |
0 | 2986 |
2987 // Test for an invoke of a final method | |
2988 Label notFinal; | |
2989 __ movl(rax, flags); | |
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2990 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
0 | 2991 __ jcc(Assembler::zero, notFinal); |
2992 | |
2993 const Register method = index; // method must be rbx | |
2994 assert(method == rbx, | |
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2995 "Method* must be rbx for interpreter calling convention"); |
0 | 2996 |
2997 // do the call - the index is actually the method to call | |
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2998 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
0 | 2999 |
3000 // It's final, need a null check here! | |
3001 __ null_check(recv); | |
3002 | |
3003 // profile this call | |
3004 __ profile_final_call(rax); | |
3005 | |
3006 __ jump_from_interpreted(method, rax); | |
3007 | |
3008 __ bind(notFinal); | |
3009 | |
3010 // get receiver klass | |
3011 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
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3012 __ load_klass(rax, recv); |
0 | 3013 |
3014 // profile this call | |
3015 __ profile_virtual_call(rax, r14, rdx); | |
3016 | |
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3017 // get target Method* & entry point |
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3018 __ lookup_virtual_method(rax, index, method); |
0 | 3019 __ jump_from_interpreted(method, rdx); |
3020 } | |
3021 | |
3022 | |
3023 void TemplateTable::invokevirtual(int byte_no) { | |
3024 transition(vtos, vtos); | |
1565 | 3025 assert(byte_no == f2_byte, "use this argument"); |
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|
3026 prepare_invoke(byte_no, |
1d7922586cf6
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diff
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|
3027 rbx, // method or vtable index |
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diff
changeset
|
3028 noreg, // unused itable index |
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|
3029 rcx, rdx); // recv, flags |
0 | 3030 |
3031 // rbx: index | |
3032 // rcx: receiver | |
3033 // rdx: flags | |
3034 | |
3035 invokevirtual_helper(rbx, rcx, rdx); | |
3036 } | |
3037 | |
3038 | |
3039 void TemplateTable::invokespecial(int byte_no) { | |
3040 transition(vtos, vtos); | |
1565 | 3041 assert(byte_no == f1_byte, "use this argument"); |
6725
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|
3042 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
6266
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changeset
|
3043 rcx); // get receiver also for null check |
1d7922586cf6
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diff
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|
3044 __ verify_oop(rcx); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3045 __ null_check(rcx); |
0 | 3046 // do the call |
3047 __ profile_call(rax); | |
3048 __ jump_from_interpreted(rbx, rax); | |
3049 } | |
3050 | |
3051 | |
3052 void TemplateTable::invokestatic(int byte_no) { | |
3053 transition(vtos, vtos); | |
1565 | 3054 assert(byte_no == f1_byte, "use this argument"); |
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changeset
|
3055 prepare_invoke(byte_no, rbx); // get f1 Method* |
0 | 3056 // do the call |
3057 __ profile_call(rax); | |
3058 __ jump_from_interpreted(rbx, rax); | |
3059 } | |
3060 | |
3061 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3062 transition(vtos, vtos); | |
1565 | 3063 assert(byte_no == f2_byte, "use this argument"); |
0 | 3064 __ stop("fast_invokevfinal not used on amd64"); |
3065 } | |
3066 | |
3067 void TemplateTable::invokeinterface(int byte_no) { | |
3068 transition(vtos, vtos); | |
1565 | 3069 assert(byte_no == f1_byte, "use this argument"); |
6725
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diff
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|
3070 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
6266
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|
3071 rcx, rdx); // recv, flags |
1d7922586cf6
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diff
changeset
|
3072 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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changeset
|
3073 // rax: interface klass (from f1) |
1d7922586cf6
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diff
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|
3074 // rbx: itable index (from f2) |
0 | 3075 // rcx: receiver |
3076 // rdx: flags | |
3077 | |
3078 // Special case of invokeinterface called for virtual method of | |
3079 // java.lang.Object. See cpCacheOop.cpp for details. | |
3080 // This code isn't produced by javac, but could be produced by | |
3081 // another compliant java compiler. | |
3082 Label notMethod; | |
3083 __ movl(r14, rdx); | |
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3084 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
0 | 3085 __ jcc(Assembler::zero, notMethod); |
3086 | |
3087 invokevirtual_helper(rbx, rcx, rdx); | |
3088 __ bind(notMethod); | |
3089 | |
3090 // Get receiver klass into rdx - also a null check | |
6266
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|
3091 __ restore_locals(); // restore r14 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3092 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
3093 __ load_klass(rdx, rcx); |
0 | 3094 |
3095 // profile this call | |
3096 __ profile_virtual_call(rdx, r13, r14); | |
3097 | |
623
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3098 Label no_such_interface, no_such_method; |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3099 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3100 __ 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
|
3101 rdx, rax, rbx, |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3102 // outputs: method, scan temp. reg |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3103 rbx, r13, |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3104 no_such_interface); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3105 |
6725
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changeset
|
3106 // 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
changeset
|
3107 // rcx: receiver |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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diff
changeset
|
3108 // Check for abstract method error |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3109 // 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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622
diff
changeset
|
3110 // 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
changeset
|
3111 // method. |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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diff
changeset
|
3112 __ testptr(rbx, rbx); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3113 __ 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
|
3114 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3115 // do the call |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3116 // rcx: receiver |
6725
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|
3117 // rbx,: Method* |
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3118 __ jump_from_interpreted(rbx, rdx); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3119 __ should_not_reach_here(); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3120 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3121 // exception handling code follows... |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3122 // note: must restore interpreter registers to canonical |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3123 // state for exception handling to work correctly! |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3124 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3125 __ bind(no_such_method); |
0 | 3126 // throw exception |
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3127 __ 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
|
3128 __ 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
|
3129 __ 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
|
3130 __ 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
|
3131 // 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
|
3132 __ should_not_reach_here(); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3133 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3134 __ bind(no_such_interface); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3135 // throw exception |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3136 __ 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
|
3137 __ 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
|
3138 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
0 | 3139 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
3140 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
3141 // the call_VM checks for exception, so we should never return here. | |
3142 __ should_not_reach_here(); | |
3143 } | |
3144 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3145 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3146 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
|
3147 transition(vtos, vtos); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3148 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
|
3149 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
changeset
|
3150 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
|
3151 const Register rcx_recv = rcx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3152 const Register rdx_flags = rdx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3153 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3154 if (!EnableInvokeDynamic) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3155 // 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
|
3156 __ should_not_reach_here(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3157 return; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3158 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3159 |
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
|
3160 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
|
3161 __ 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
|
3162 __ verify_oop(rcx_recv); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3163 __ null_check(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 |
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
|
3165 // 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
|
3166 // 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
twisti
parents:
6740
diff
changeset
|
3167 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3168 // 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
twisti
parents:
5995
diff
changeset
|
3169 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3170 // FIXME: profile the LambdaForm also |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3171 __ profile_final_call(rax); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3172 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3173 __ 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
|
3174 } |
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 |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3177 void TemplateTable::invokedynamic(int byte_no) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
3178 transition(vtos, vtos); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
3179 assert(byte_no == f1_byte, "use this argument"); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3180 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
623
diff
changeset
|
3181 if (!EnableInvokeDynamic) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
623
diff
changeset
|
3182 // We should not encounter this bytecode if !EnableInvokeDynamic. |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3183 // 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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|
3184 // this will stop the thread in a reasonable way, without crashing the JVM. |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
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diff
changeset
|
3185 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3186 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3187 // 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
|
3188 __ should_not_reach_here(); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3189 return; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3190 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
623
diff
changeset
|
3191 |
6266
1d7922586cf6
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5995
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|
3192 const Register rbx_method = rbx; |
1d7922586cf6
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5995
diff
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|
3193 const Register rax_callsite = rax; |
1d7922586cf6
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|
3194 |
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3195 prepare_invoke(byte_no, rbx_method, rax_callsite); |
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3196 |
6822
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3197 // rax: CallSite object (from cpool->resolved_references[f1]) |
6266
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3198 // rbx: MH.linkToCallSite method (from f2) |
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3199 |
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3200 // Note: rax_callsite is already pushed by prepare_invoke |
1846 | 3201 |
3279
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3202 // %%% should make a type profile for any invokedynamic that takes a ref argument |
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|
3203 // profile this call |
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|
3204 __ profile_call(r13); |
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|
3205 |
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|
3206 __ verify_oop(rax_callsite); |
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3207 |
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|
3208 __ jump_from_interpreted(rbx_method, rdx); |
726
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|
3209 } |
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3210 |
623
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3211 |
0 | 3212 //----------------------------------------------------------------------------- |
3213 // Allocation | |
3214 | |
3215 void TemplateTable::_new() { | |
3216 transition(vtos, atos); | |
3217 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
3218 Label slow_case; | |
3219 Label done; | |
3220 Label initialize_header; | |
3221 Label initialize_object; // including clearing the fields | |
3222 Label allocate_shared; | |
3223 | |
3224 __ get_cpool_and_tags(rsi, rax); | |
1681
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3225 // Make sure the class we're about to instantiate has been resolved. |
6725
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3226 // This is done before loading InstanceKlass to be consistent with the order |
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3227 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
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3228 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 3229 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
3230 JVM_CONSTANT_Class); | |
3231 __ jcc(Assembler::notEqual, slow_case); | |
3232 | |
6725
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3233 // get InstanceKlass |
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3234 __ movptr(rsi, Address(rsi, rdx, |
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3235 Address::times_8, sizeof(ConstantPool))); |
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3236 |
0 | 3237 // make sure klass is initialized & doesn't have finalizer |
3238 // make sure klass is fully initialized | |
4739
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3239 __ cmpb(Address(rsi, |
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3240 InstanceKlass::init_state_offset()), |
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3241 InstanceKlass::fully_initialized); |
0 | 3242 __ jcc(Assembler::notEqual, slow_case); |
3243 | |
6725
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3244 // get instance_size in InstanceKlass (scaled to a count of bytes) |
0 | 3245 __ movl(rdx, |
3246 Address(rsi, | |
4762
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3247 Klass::layout_helper_offset())); |
0 | 3248 // test to see if it has a finalizer or is malformed in some way |
3249 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
3250 __ jcc(Assembler::notZero, slow_case); | |
3251 | |
3252 // Allocate the instance | |
3253 // 1) Try to allocate in the TLAB | |
3254 // 2) if fail and the object is large allocate in the shared Eden | |
3255 // 3) if the above fails (or is not applicable), go to a slow case | |
3256 // (creates a new TLAB, etc.) | |
3257 | |
3258 const bool allow_shared_alloc = | |
3259 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
3260 | |
3261 if (UseTLAB) { | |
304 | 3262 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
3263 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
3264 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
0 | 3265 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
304 | 3266 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
0 | 3267 if (ZeroTLAB) { |
3268 // the fields have been already cleared | |
3269 __ jmp(initialize_header); | |
3270 } else { | |
3271 // initialize both the header and fields | |
3272 __ jmp(initialize_object); | |
3273 } | |
3274 } | |
3275 | |
3276 // Allocation in the shared Eden, if allowed. | |
3277 // | |
3278 // rdx: instance size in bytes | |
3279 if (allow_shared_alloc) { | |
3280 __ bind(allocate_shared); | |
3281 | |
342
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|
3282 ExternalAddress top((address)Universe::heap()->top_addr()); |
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3283 ExternalAddress end((address)Universe::heap()->end_addr()); |
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3284 |
0 | 3285 const Register RtopAddr = rscratch1; |
3286 const Register RendAddr = rscratch2; | |
3287 | |
3288 __ lea(RtopAddr, top); | |
3289 __ lea(RendAddr, end); | |
304 | 3290 __ movptr(rax, Address(RtopAddr, 0)); |
0 | 3291 |
3292 // For retries rax gets set by cmpxchgq | |
3293 Label retry; | |
3294 __ bind(retry); | |
304 | 3295 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
3296 __ cmpptr(rbx, Address(RendAddr, 0)); | |
0 | 3297 __ jcc(Assembler::above, slow_case); |
3298 | |
3299 // Compare rax with the top addr, and if still equal, store the new | |
3300 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
3301 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
3302 // | |
3303 // rax: object begin | |
3304 // rbx: object end | |
3305 // rdx: instance size in bytes | |
3306 if (os::is_MP()) { | |
3307 __ lock(); | |
3308 } | |
304 | 3309 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
0 | 3310 |
3311 // if someone beat us on the allocation, try again, otherwise continue | |
3312 __ jcc(Assembler::notEqual, retry); | |
2100
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|
3313 |
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|
3314 __ incr_allocated_bytes(r15_thread, rdx, 0); |
0 | 3315 } |
3316 | |
3317 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
3318 // The object is initialized before the header. If the object size is | |
3319 // zero, go directly to the header initialization. | |
3320 __ bind(initialize_object); | |
3321 __ decrementl(rdx, sizeof(oopDesc)); | |
3322 __ jcc(Assembler::zero, initialize_header); | |
3323 | |
3324 // Initialize object fields | |
3325 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
3326 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
3327 { | |
3328 Label loop; | |
3329 __ bind(loop); | |
3330 __ movq(Address(rax, rdx, Address::times_8, | |
3331 sizeof(oopDesc) - oopSize), | |
3332 rcx); | |
3333 __ decrementl(rdx); | |
3334 __ jcc(Assembler::notZero, loop); | |
3335 } | |
3336 | |
3337 // initialize object header only. | |
3338 __ bind(initialize_header); | |
3339 if (UseBiasedLocking) { | |
4762
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|
3340 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
304 | 3341 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
0 | 3342 } else { |
3343 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
3344 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
3345 } | |
167
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3346 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
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3347 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
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3348 __ store_klass(rax, rsi); // store klass last |
1248
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|
3349 |
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|
3350 { |
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|
3351 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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|
3352 // Trigger dtrace event for fastpath |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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changeset
|
3353 __ push(atos); // save the return value |
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6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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|
3354 __ call_VM_leaf( |
455df1b81409
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|
3355 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
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6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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|
3356 __ pop(atos); // restore the return value |
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|
3357 |
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|
3358 } |
0 | 3359 __ jmp(done); |
3360 } | |
3361 | |
3362 | |
3363 // slow case | |
3364 __ bind(slow_case); | |
3365 __ get_constant_pool(c_rarg1); | |
3366 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3367 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
3368 __ verify_oop(rax); | |
3369 | |
3370 // continue | |
3371 __ bind(done); | |
3372 } | |
3373 | |
3374 void TemplateTable::newarray() { | |
3375 transition(itos, atos); | |
3376 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
3377 __ movl(c_rarg2, rax); | |
3378 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
3379 c_rarg1, c_rarg2); | |
3380 } | |
3381 | |
3382 void TemplateTable::anewarray() { | |
3383 transition(itos, atos); | |
3384 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3385 __ get_constant_pool(c_rarg1); | |
3386 __ movl(c_rarg3, rax); | |
3387 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
3388 c_rarg1, c_rarg2, c_rarg3); | |
3389 } | |
3390 | |
3391 void TemplateTable::arraylength() { | |
3392 transition(atos, itos); | |
3393 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
3394 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
3395 } | |
3396 | |
3397 void TemplateTable::checkcast() { | |
3398 transition(atos, atos); | |
3399 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3400 __ testptr(rax, rax); // object is in rax |
0 | 3401 __ jcc(Assembler::zero, is_null); |
3402 | |
3403 // Get cpool & tags index | |
3404 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3405 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3406 // See if bytecode has already been quicked | |
3407 __ cmpb(Address(rdx, rbx, | |
3408 Address::times_1, | |
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3409 Array<u1>::base_offset_in_bytes()), |
0 | 3410 JVM_CONSTANT_Class); |
3411 __ jcc(Assembler::equal, quicked); | |
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3412 __ push(atos); // save receiver for result, and for GC |
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3413 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3414 // vm_result_2 has metadata result |
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3415 __ get_vm_result_2(rax, r15_thread); |
0 | 3416 __ pop_ptr(rdx); // restore receiver |
3417 __ jmpb(resolved); | |
3418 | |
3419 // Get superklass in rax and subklass in rbx | |
3420 __ bind(quicked); | |
304 | 3421 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
3422 __ movptr(rax, Address(rcx, rbx, | |
6725
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3423 Address::times_8, sizeof(ConstantPool))); |
0 | 3424 |
3425 __ bind(resolved); | |
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3426 __ load_klass(rbx, rdx); |
0 | 3427 |
3428 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
3429 // Superklass in rax. Subklass in rbx. | |
3430 __ gen_subtype_check(rbx, ok_is_subtype); | |
3431 | |
3432 // Come here on failure | |
3433 __ push_ptr(rdx); | |
3434 // object is at TOS | |
3435 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
3436 | |
3437 // Come here on success | |
3438 __ bind(ok_is_subtype); | |
304 | 3439 __ mov(rax, rdx); // Restore object in rdx |
0 | 3440 |
3441 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
3442 if (ProfileInterpreter) { | |
3443 __ jmp(done); | |
3444 __ bind(is_null); | |
3445 __ profile_null_seen(rcx); | |
3446 } else { | |
3447 __ bind(is_null); // same as 'done' | |
3448 } | |
3449 __ bind(done); | |
3450 } | |
3451 | |
3452 void TemplateTable::instanceof() { | |
3453 transition(atos, itos); | |
3454 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3455 __ testptr(rax, rax); |
0 | 3456 __ jcc(Assembler::zero, is_null); |
3457 | |
3458 // Get cpool & tags index | |
3459 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3460 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3461 // See if bytecode has already been quicked | |
3462 __ cmpb(Address(rdx, rbx, | |
3463 Address::times_1, | |
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3464 Array<u1>::base_offset_in_bytes()), |
0 | 3465 JVM_CONSTANT_Class); |
3466 __ jcc(Assembler::equal, quicked); | |
3467 | |
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3468 __ push(atos); // save receiver for result, and for GC |
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3469 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3470 // vm_result_2 has metadata result |
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3471 __ get_vm_result_2(rax, r15_thread); |
0 | 3472 __ pop_ptr(rdx); // restore receiver |
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3473 __ verify_oop(rdx); |
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3474 __ load_klass(rdx, rdx); |
0 | 3475 __ jmpb(resolved); |
3476 | |
3477 // Get superklass in rax and subklass in rdx | |
3478 __ bind(quicked); | |
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3479 __ load_klass(rdx, rax); |
304 | 3480 __ movptr(rax, Address(rcx, rbx, |
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3481 Address::times_8, sizeof(ConstantPool))); |
0 | 3482 |
3483 __ bind(resolved); | |
3484 | |
3485 // Generate subtype check. Blows rcx, rdi | |
3486 // Superklass in rax. Subklass in rdx. | |
3487 __ gen_subtype_check(rdx, ok_is_subtype); | |
3488 | |
3489 // Come here on failure | |
3490 __ xorl(rax, rax); | |
3491 __ jmpb(done); | |
3492 // Come here on success | |
3493 __ bind(ok_is_subtype); | |
3494 __ movl(rax, 1); | |
3495 | |
3496 // Collect counts on whether this test sees NULLs a lot or not. | |
3497 if (ProfileInterpreter) { | |
3498 __ jmp(done); | |
3499 __ bind(is_null); | |
3500 __ profile_null_seen(rcx); | |
3501 } else { | |
3502 __ bind(is_null); // same as 'done' | |
3503 } | |
3504 __ bind(done); | |
3505 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
3506 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
3507 } | |
3508 | |
3509 //----------------------------------------------------------------------------- | |
3510 // Breakpoints | |
3511 void TemplateTable::_breakpoint() { | |
3512 // Note: We get here even if we are single stepping.. | |
3513 // jbug inists on setting breakpoints at every bytecode | |
3514 // even if we are in single step mode. | |
3515 | |
3516 transition(vtos, vtos); | |
3517 | |
3518 // get the unpatched byte code | |
3519 __ get_method(c_rarg1); | |
3520 __ call_VM(noreg, | |
3521 CAST_FROM_FN_PTR(address, | |
3522 InterpreterRuntime::get_original_bytecode_at), | |
3523 c_rarg1, r13); | |
304 | 3524 __ mov(rbx, rax); |
0 | 3525 |
3526 // post the breakpoint event | |
3527 __ get_method(c_rarg1); | |
3528 __ call_VM(noreg, | |
3529 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
3530 c_rarg1, r13); | |
3531 | |
3532 // complete the execution of original bytecode | |
3533 __ dispatch_only_normal(vtos); | |
3534 } | |
3535 | |
3536 //----------------------------------------------------------------------------- | |
3537 // Exceptions | |
3538 | |
3539 void TemplateTable::athrow() { | |
3540 transition(atos, vtos); | |
3541 __ null_check(rax); | |
3542 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
3543 } | |
3544 | |
3545 //----------------------------------------------------------------------------- | |
3546 // Synchronization | |
3547 // | |
3548 // Note: monitorenter & exit are symmetric routines; which is reflected | |
3549 // in the assembly code structure as well | |
3550 // | |
3551 // Stack layout: | |
3552 // | |
3553 // [expressions ] <--- rsp = expression stack top | |
3554 // .. | |
3555 // [expressions ] | |
3556 // [monitor entry] <--- monitor block top = expression stack bot | |
3557 // .. | |
3558 // [monitor entry] | |
3559 // [frame data ] <--- monitor block bot | |
3560 // ... | |
3561 // [saved rbp ] <--- rbp | |
3562 void TemplateTable::monitorenter() { | |
3563 transition(atos, vtos); | |
3564 | |
3565 // check for NULL object | |
3566 __ null_check(rax); | |
3567 | |
3568 const Address monitor_block_top( | |
3569 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3570 const Address monitor_block_bot( | |
3571 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3572 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3573 | |
3574 Label allocated; | |
3575 | |
3576 // initialize entry pointer | |
3577 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
3578 | |
3579 // find a free slot in the monitor block (result in c_rarg1) | |
3580 { | |
3581 Label entry, loop, exit; | |
304 | 3582 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
0 | 3583 // starting with top-most entry |
304 | 3584 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3585 // of monitor block |
3586 __ jmpb(entry); | |
3587 | |
3588 __ bind(loop); | |
3589 // check if current entry is used | |
304 | 3590 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
0 | 3591 // if not used then remember entry in c_rarg1 |
304 | 3592 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
0 | 3593 // check if current entry is for same object |
304 | 3594 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3595 // if same object then stop searching |
3596 __ jccb(Assembler::equal, exit); | |
3597 // otherwise advance to next entry | |
304 | 3598 __ addptr(c_rarg3, entry_size); |
0 | 3599 __ bind(entry); |
3600 // check if bottom reached | |
304 | 3601 __ cmpptr(c_rarg3, c_rarg2); |
0 | 3602 // if not at bottom then check this entry |
3603 __ jcc(Assembler::notEqual, loop); | |
3604 __ bind(exit); | |
3605 } | |
3606 | |
304 | 3607 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
0 | 3608 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
3609 | |
3610 // allocate one if there's no free slot | |
3611 { | |
3612 Label entry, loop; | |
304 | 3613 // 1. compute new pointers // rsp: old expression stack top |
3614 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
3615 __ subptr(rsp, entry_size); // move expression stack top | |
3616 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
3617 __ mov(c_rarg3, rsp); // set start value for copy loop | |
3618 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
0 | 3619 __ jmp(entry); |
3620 // 2. move expression stack contents | |
3621 __ bind(loop); | |
304 | 3622 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
3623 // word from old location | |
3624 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
3625 __ addptr(c_rarg3, wordSize); // advance to next word | |
0 | 3626 __ bind(entry); |
304 | 3627 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
0 | 3628 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
3629 // copy next word | |
3630 } | |
3631 | |
3632 // call run-time routine | |
3633 // c_rarg1: points to monitor entry | |
3634 __ bind(allocated); | |
3635 | |
3636 // Increment bcp to point to the next bytecode, so exception | |
3637 // handling for async. exceptions work correctly. | |
3638 // The object has already been poped from the stack, so the | |
3639 // expression stack looks correct. | |
304 | 3640 __ increment(r13); |
0 | 3641 |
3642 // store object | |
304 | 3643 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
0 | 3644 __ lock_object(c_rarg1); |
3645 | |
3646 // check to make sure this monitor doesn't cause stack overflow after locking | |
3647 __ save_bcp(); // in case of exception | |
3648 __ generate_stack_overflow_check(0); | |
3649 | |
3650 // The bcp has already been incremented. Just need to dispatch to | |
3651 // next instruction. | |
3652 __ dispatch_next(vtos); | |
3653 } | |
3654 | |
3655 | |
3656 void TemplateTable::monitorexit() { | |
3657 transition(atos, vtos); | |
3658 | |
3659 // check for NULL object | |
3660 __ null_check(rax); | |
3661 | |
3662 const Address monitor_block_top( | |
3663 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3664 const Address monitor_block_bot( | |
3665 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3666 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3667 | |
3668 Label found; | |
3669 | |
3670 // find matching slot | |
3671 { | |
3672 Label entry, loop; | |
304 | 3673 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
0 | 3674 // starting with top-most entry |
304 | 3675 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3676 // of monitor block |
3677 __ jmpb(entry); | |
3678 | |
3679 __ bind(loop); | |
3680 // check if current entry is for same object | |
304 | 3681 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3682 // if same object then stop searching |
3683 __ jcc(Assembler::equal, found); | |
3684 // otherwise advance to next entry | |
304 | 3685 __ addptr(c_rarg1, entry_size); |
0 | 3686 __ bind(entry); |
3687 // check if bottom reached | |
304 | 3688 __ cmpptr(c_rarg1, c_rarg2); |
0 | 3689 // if not at bottom then check this entry |
3690 __ jcc(Assembler::notEqual, loop); | |
3691 } | |
3692 | |
3693 // error handling. Unlocking was not block-structured | |
3694 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
3695 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
3696 __ should_not_reach_here(); | |
3697 | |
3698 // call run-time routine | |
3699 // rsi: points to monitor entry | |
3700 __ bind(found); | |
3701 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
3702 __ unlock_object(c_rarg1); | |
3703 __ pop_ptr(rax); // discard object | |
3704 } | |
3705 | |
3706 | |
3707 // Wide instructions | |
3708 void TemplateTable::wide() { | |
3709 transition(vtos, vtos); | |
3710 __ load_unsigned_byte(rbx, at_bcp(1)); | |
3711 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
3712 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
3713 // Note: the r13 increment step is part of the individual wide | |
3714 // bytecode implementations | |
3715 } | |
3716 | |
3717 | |
3718 // Multi arrays | |
3719 void TemplateTable::multianewarray() { | |
3720 transition(vtos, atos); | |
3721 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
3722 // last dim is on top of stack; we want address of first one: | |
3723 // first_addr = last_addr + (ndims - 1) * wordSize | |
304 | 3724 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
0 | 3725 call_VM(rax, |
3726 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
3727 c_rarg1); | |
3728 __ load_unsigned_byte(rbx, at_bcp(3)); | |
304 | 3729 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
0 | 3730 } |
304 | 3731 #endif // !CC_INTERP |