Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 6842:b9a9ed0f8eeb
7197424: update copyright year to match last edit in jdk8 hotspot repository
Summary: Update copyright year to 2012 for relevant files
Reviewed-by: dholmes, coleenp
author | mikael |
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date | Tue, 09 Oct 2012 10:09:34 -0700 |
parents | 6e5a59a8e4a7 |
children | cd3d6a6b95d9 |
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" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "interpreter/interpreterRuntime.hpp" | |
28 #include "interpreter/templateTable.hpp" | |
29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
1972 | 31 #include "oops/objArrayKlass.hpp" |
32 #include "oops/oop.inline.hpp" | |
33 #include "prims/methodHandles.hpp" | |
34 #include "runtime/sharedRuntime.hpp" | |
35 #include "runtime/stubRoutines.hpp" | |
36 #include "runtime/synchronizer.hpp" | |
0 | 37 |
304 | 38 #ifndef CC_INTERP |
39 | |
0 | 40 #define __ _masm-> |
41 | |
42 // Platform-dependent initialization | |
43 | |
44 void TemplateTable::pd_initialize() { | |
45 // No amd64 specific initialization | |
46 } | |
47 | |
48 // Address computation: local variables | |
49 | |
50 static inline Address iaddress(int n) { | |
51 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
52 } | |
53 | |
54 static inline Address laddress(int n) { | |
55 return iaddress(n + 1); | |
56 } | |
57 | |
58 static inline Address faddress(int n) { | |
59 return iaddress(n); | |
60 } | |
61 | |
62 static inline Address daddress(int n) { | |
63 return laddress(n); | |
64 } | |
65 | |
66 static inline Address aaddress(int n) { | |
67 return iaddress(n); | |
68 } | |
69 | |
70 static inline Address iaddress(Register r) { | |
1506 | 71 return Address(r14, r, Address::times_8); |
0 | 72 } |
73 | |
74 static inline Address laddress(Register r) { | |
75 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
76 } | |
77 | |
78 static inline Address faddress(Register r) { | |
79 return iaddress(r); | |
80 } | |
81 | |
82 static inline Address daddress(Register r) { | |
83 return laddress(r); | |
84 } | |
85 | |
86 static inline Address aaddress(Register r) { | |
87 return iaddress(r); | |
88 } | |
89 | |
90 static inline Address at_rsp() { | |
91 return Address(rsp, 0); | |
92 } | |
93 | |
94 // At top of Java expression stack which may be different than esp(). It | |
95 // isn't for category 1 objects. | |
96 static inline Address at_tos () { | |
97 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
98 } | |
99 | |
100 static inline Address at_tos_p1() { | |
101 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
102 } | |
103 | |
104 static inline Address at_tos_p2() { | |
105 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
106 } | |
107 | |
108 static inline Address at_tos_p3() { | |
109 return Address(rsp, Interpreter::expr_offset_in_bytes(3)); | |
110 } | |
111 | |
112 // Condition conversion | |
113 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
114 switch (cc) { | |
115 case TemplateTable::equal : return Assembler::notEqual; | |
116 case TemplateTable::not_equal : return Assembler::equal; | |
117 case TemplateTable::less : return Assembler::greaterEqual; | |
118 case TemplateTable::less_equal : return Assembler::greater; | |
119 case TemplateTable::greater : return Assembler::lessEqual; | |
120 case TemplateTable::greater_equal: return Assembler::less; | |
121 } | |
122 ShouldNotReachHere(); | |
123 return Assembler::zero; | |
124 } | |
125 | |
126 | |
127 // Miscelaneous helper routines | |
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128 // Store an oop (or NULL) at the address described by obj. |
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129 // If val == noreg this means store a NULL |
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130 |
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131 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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132 Address obj, |
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133 Register val, |
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134 BarrierSet::Name barrier, |
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135 bool precise) { |
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136 assert(val == noreg || val == rax, "parameter is just for looks"); |
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137 switch (barrier) { |
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138 #ifndef SERIALGC |
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139 case BarrierSet::G1SATBCT: |
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140 case BarrierSet::G1SATBCTLogging: |
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141 { |
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142 // flatten object address if needed |
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143 if (obj.index() == noreg && obj.disp() == 0) { |
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144 if (obj.base() != rdx) { |
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145 __ movq(rdx, obj.base()); |
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146 } |
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147 } else { |
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148 __ leaq(rdx, obj); |
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149 } |
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150 __ g1_write_barrier_pre(rdx /* obj */, |
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151 rbx /* pre_val */, |
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152 r15_thread /* thread */, |
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153 r8 /* tmp */, |
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154 val != noreg /* tosca_live */, |
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155 false /* expand_call */); |
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156 if (val == noreg) { |
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157 __ store_heap_oop_null(Address(rdx, 0)); |
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158 } else { |
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159 __ store_heap_oop(Address(rdx, 0), val); |
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160 __ g1_write_barrier_post(rdx /* store_adr */, |
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161 val /* new_val */, |
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162 r15_thread /* thread */, |
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163 r8 /* tmp */, |
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164 rbx /* tmp2 */); |
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165 } |
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166 |
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167 } |
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168 break; |
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169 #endif // SERIALGC |
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170 case BarrierSet::CardTableModRef: |
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171 case BarrierSet::CardTableExtension: |
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172 { |
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173 if (val == noreg) { |
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174 __ store_heap_oop_null(obj); |
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175 } else { |
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176 __ store_heap_oop(obj, val); |
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177 // flatten object address if needed |
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178 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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179 __ store_check(obj.base()); |
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180 } else { |
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181 __ leaq(rdx, obj); |
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182 __ store_check(rdx); |
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183 } |
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184 } |
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185 } |
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186 break; |
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187 case BarrierSet::ModRef: |
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188 case BarrierSet::Other: |
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189 if (val == noreg) { |
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190 __ store_heap_oop_null(obj); |
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191 } else { |
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192 __ store_heap_oop(obj, val); |
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193 } |
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194 break; |
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195 default : |
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196 ShouldNotReachHere(); |
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197 |
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198 } |
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199 } |
0 | 200 |
201 Address TemplateTable::at_bcp(int offset) { | |
202 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
203 return Address(r13, offset); | |
204 } | |
205 | |
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206 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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207 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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208 int byte_no) { |
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209 if (!RewriteBytecodes) return; |
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210 Label L_patch_done; |
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211 |
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212 switch (bc) { |
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213 case Bytecodes::_fast_aputfield: |
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214 case Bytecodes::_fast_bputfield: |
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215 case Bytecodes::_fast_cputfield: |
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216 case Bytecodes::_fast_dputfield: |
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217 case Bytecodes::_fast_fputfield: |
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218 case Bytecodes::_fast_iputfield: |
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219 case Bytecodes::_fast_lputfield: |
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220 case Bytecodes::_fast_sputfield: |
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221 { |
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222 // We skip bytecode quickening for putfield instructions when |
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223 // the put_code written to the constant pool cache is zero. |
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224 // This is required so that every execution of this instruction |
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225 // calls out to InterpreterRuntime::resolve_get_put to do |
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226 // additional, required work. |
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227 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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228 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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229 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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230 __ movl(bc_reg, bc); |
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231 __ cmpl(temp_reg, (int) 0); |
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232 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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233 } |
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234 break; |
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235 default: |
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236 assert(byte_no == -1, "sanity"); |
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237 // the pair bytecodes have already done the load. |
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238 if (load_bc_into_bc_reg) { |
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239 __ movl(bc_reg, bc); |
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240 } |
0 | 241 } |
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242 |
0 | 243 if (JvmtiExport::can_post_breakpoint()) { |
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244 Label L_fast_patch; |
0 | 245 // if a breakpoint is present we can't rewrite the stream directly |
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246 __ movzbl(temp_reg, at_bcp(0)); |
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247 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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248 __ jcc(Assembler::notEqual, L_fast_patch); |
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249 __ get_method(temp_reg); |
0 | 250 // Let breakpoint table handling rewrite to quicker bytecode |
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251 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
0 | 252 #ifndef ASSERT |
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253 __ jmpb(L_patch_done); |
1108 | 254 #else |
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255 __ jmp(L_patch_done); |
1108 | 256 #endif |
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257 __ bind(L_fast_patch); |
0 | 258 } |
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259 |
1108 | 260 #ifdef ASSERT |
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261 Label L_okay; |
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262 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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263 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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264 __ jcc(Assembler::equal, L_okay); |
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265 __ cmpl(temp_reg, bc_reg); |
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266 __ jcc(Assembler::equal, L_okay); |
0 | 267 __ stop("patching the wrong bytecode"); |
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268 __ bind(L_okay); |
0 | 269 #endif |
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270 |
0 | 271 // patch bytecode |
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272 __ movb(at_bcp(0), bc_reg); |
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273 __ bind(L_patch_done); |
0 | 274 } |
275 | |
276 | |
277 // Individual instructions | |
278 | |
279 void TemplateTable::nop() { | |
280 transition(vtos, vtos); | |
281 // nothing to do | |
282 } | |
283 | |
284 void TemplateTable::shouldnotreachhere() { | |
285 transition(vtos, vtos); | |
286 __ stop("shouldnotreachhere bytecode"); | |
287 } | |
288 | |
289 void TemplateTable::aconst_null() { | |
290 transition(vtos, atos); | |
291 __ xorl(rax, rax); | |
292 } | |
293 | |
294 void TemplateTable::iconst(int value) { | |
295 transition(vtos, itos); | |
296 if (value == 0) { | |
297 __ xorl(rax, rax); | |
298 } else { | |
299 __ movl(rax, value); | |
300 } | |
301 } | |
302 | |
303 void TemplateTable::lconst(int value) { | |
304 transition(vtos, ltos); | |
305 if (value == 0) { | |
306 __ xorl(rax, rax); | |
307 } else { | |
308 __ movl(rax, value); | |
309 } | |
310 } | |
311 | |
312 void TemplateTable::fconst(int value) { | |
313 transition(vtos, ftos); | |
314 static float one = 1.0f, two = 2.0f; | |
315 switch (value) { | |
316 case 0: | |
317 __ xorps(xmm0, xmm0); | |
318 break; | |
319 case 1: | |
320 __ movflt(xmm0, ExternalAddress((address) &one)); | |
321 break; | |
322 case 2: | |
323 __ movflt(xmm0, ExternalAddress((address) &two)); | |
324 break; | |
325 default: | |
326 ShouldNotReachHere(); | |
327 break; | |
328 } | |
329 } | |
330 | |
331 void TemplateTable::dconst(int value) { | |
332 transition(vtos, dtos); | |
333 static double one = 1.0; | |
334 switch (value) { | |
335 case 0: | |
336 __ xorpd(xmm0, xmm0); | |
337 break; | |
338 case 1: | |
339 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
340 break; | |
341 default: | |
342 ShouldNotReachHere(); | |
343 break; | |
344 } | |
345 } | |
346 | |
347 void TemplateTable::bipush() { | |
348 transition(vtos, itos); | |
349 __ load_signed_byte(rax, at_bcp(1)); | |
350 } | |
351 | |
352 void TemplateTable::sipush() { | |
353 transition(vtos, itos); | |
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354 __ load_unsigned_short(rax, at_bcp(1)); |
0 | 355 __ bswapl(rax); |
356 __ sarl(rax, 16); | |
357 } | |
358 | |
359 void TemplateTable::ldc(bool wide) { | |
360 transition(vtos, vtos); | |
361 Label call_ldc, notFloat, notClass, Done; | |
362 | |
363 if (wide) { | |
364 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
365 } else { | |
366 __ load_unsigned_byte(rbx, at_bcp(1)); | |
367 } | |
368 | |
369 __ get_cpool_and_tags(rcx, rax); | |
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370 const int base_offset = ConstantPool::header_size() * wordSize; |
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371 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 372 |
373 // get type | |
374 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
375 | |
376 // unresolved class - get the resolved class | |
377 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
378 __ jccb(Assembler::equal, call_ldc); | |
379 | |
380 // unresolved class in error state - call into runtime to throw the error | |
381 // from the first resolution attempt | |
382 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
383 __ jccb(Assembler::equal, call_ldc); | |
384 | |
385 // resolved class - need to call vm to get java mirror of the class | |
386 __ cmpl(rdx, JVM_CONSTANT_Class); | |
387 __ jcc(Assembler::notEqual, notClass); | |
388 | |
389 __ bind(call_ldc); | |
390 __ movl(c_rarg1, wide); | |
391 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
392 __ push_ptr(rax); | |
393 __ verify_oop(rax); | |
394 __ jmp(Done); | |
395 | |
396 __ bind(notClass); | |
397 __ cmpl(rdx, JVM_CONSTANT_Float); | |
398 __ jccb(Assembler::notEqual, notFloat); | |
399 // ftos | |
400 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
401 __ push_f(); | |
402 __ jmp(Done); | |
403 | |
404 __ bind(notFloat); | |
405 #ifdef ASSERT | |
406 { | |
407 Label L; | |
408 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
409 __ jcc(Assembler::equal, L); | |
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410 // String and Object are rewritten to fast_aldc |
0 | 411 __ stop("unexpected tag type in ldc"); |
412 __ bind(L); | |
413 } | |
414 #endif | |
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415 // itos JVM_CONSTANT_Integer only |
0 | 416 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
417 __ push_i(rax); | |
418 __ bind(Done); | |
419 } | |
420 | |
1602 | 421 // Fast path for caching oop constants. |
422 void TemplateTable::fast_aldc(bool wide) { | |
423 transition(vtos, atos); | |
424 | |
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425 Register result = rax; |
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426 Register tmp = rdx; |
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427 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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428 |
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429 Label resolved; |
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430 |
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431 // We are resolved if the resolved reference cache entry contains a |
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432 // non-null object (String, MethodType, etc.) |
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433 assert_different_registers(result, tmp); |
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434 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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435 __ load_resolved_reference_at_index(result, tmp); |
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436 __ testl(result, result); |
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437 __ jcc(Assembler::notZero, resolved); |
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438 |
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439 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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440 |
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441 // first time invocation - must resolve first |
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442 __ movl(tmp, (int)bytecode()); |
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443 __ call_VM(result, entry, tmp); |
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444 |
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445 __ bind(resolved); |
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446 |
1602 | 447 if (VerifyOops) { |
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448 __ verify_oop(result); |
1602 | 449 } |
450 } | |
451 | |
0 | 452 void TemplateTable::ldc2_w() { |
453 transition(vtos, vtos); | |
454 Label Long, Done; | |
455 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
456 | |
457 __ get_cpool_and_tags(rcx, rax); | |
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458 const int base_offset = ConstantPool::header_size() * wordSize; |
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459 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 460 |
461 // get type | |
462 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
463 JVM_CONSTANT_Double); | |
464 __ jccb(Assembler::notEqual, Long); | |
465 // dtos | |
466 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
467 __ push_d(); | |
468 __ jmpb(Done); | |
469 | |
470 __ bind(Long); | |
471 // ltos | |
472 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
473 __ push_l(); | |
474 | |
475 __ bind(Done); | |
476 } | |
477 | |
478 void TemplateTable::locals_index(Register reg, int offset) { | |
479 __ load_unsigned_byte(reg, at_bcp(offset)); | |
304 | 480 __ negptr(reg); |
0 | 481 } |
482 | |
483 void TemplateTable::iload() { | |
484 transition(vtos, itos); | |
485 if (RewriteFrequentPairs) { | |
486 Label rewrite, done; | |
487 const Register bc = c_rarg3; | |
488 assert(rbx != bc, "register damaged"); | |
489 | |
490 // get next byte | |
491 __ load_unsigned_byte(rbx, | |
492 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
493 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
494 // last two iloads in a pair. Comparing against fast_iload means that | |
495 // the next bytecode is neither an iload or a caload, and therefore | |
496 // an iload pair. | |
497 __ cmpl(rbx, Bytecodes::_iload); | |
498 __ jcc(Assembler::equal, done); | |
499 | |
500 __ cmpl(rbx, Bytecodes::_fast_iload); | |
501 __ movl(bc, Bytecodes::_fast_iload2); | |
502 __ jccb(Assembler::equal, rewrite); | |
503 | |
504 // if _caload, rewrite to fast_icaload | |
505 __ cmpl(rbx, Bytecodes::_caload); | |
506 __ movl(bc, Bytecodes::_fast_icaload); | |
507 __ jccb(Assembler::equal, rewrite); | |
508 | |
509 // rewrite so iload doesn't check again. | |
510 __ movl(bc, Bytecodes::_fast_iload); | |
511 | |
512 // rewrite | |
513 // bc: fast bytecode | |
514 __ bind(rewrite); | |
515 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
516 __ bind(done); | |
517 } | |
518 | |
519 // Get the local value into tos | |
520 locals_index(rbx); | |
521 __ movl(rax, iaddress(rbx)); | |
522 } | |
523 | |
524 void TemplateTable::fast_iload2() { | |
525 transition(vtos, itos); | |
526 locals_index(rbx); | |
527 __ movl(rax, iaddress(rbx)); | |
528 __ push(itos); | |
529 locals_index(rbx, 3); | |
530 __ movl(rax, iaddress(rbx)); | |
531 } | |
532 | |
533 void TemplateTable::fast_iload() { | |
534 transition(vtos, itos); | |
535 locals_index(rbx); | |
536 __ movl(rax, iaddress(rbx)); | |
537 } | |
538 | |
539 void TemplateTable::lload() { | |
540 transition(vtos, ltos); | |
541 locals_index(rbx); | |
542 __ movq(rax, laddress(rbx)); | |
543 } | |
544 | |
545 void TemplateTable::fload() { | |
546 transition(vtos, ftos); | |
547 locals_index(rbx); | |
548 __ movflt(xmm0, faddress(rbx)); | |
549 } | |
550 | |
551 void TemplateTable::dload() { | |
552 transition(vtos, dtos); | |
553 locals_index(rbx); | |
554 __ movdbl(xmm0, daddress(rbx)); | |
555 } | |
556 | |
557 void TemplateTable::aload() { | |
558 transition(vtos, atos); | |
559 locals_index(rbx); | |
304 | 560 __ movptr(rax, aaddress(rbx)); |
0 | 561 } |
562 | |
563 void TemplateTable::locals_index_wide(Register reg) { | |
564 __ movl(reg, at_bcp(2)); | |
565 __ bswapl(reg); | |
566 __ shrl(reg, 16); | |
304 | 567 __ negptr(reg); |
0 | 568 } |
569 | |
570 void TemplateTable::wide_iload() { | |
571 transition(vtos, itos); | |
572 locals_index_wide(rbx); | |
573 __ movl(rax, iaddress(rbx)); | |
574 } | |
575 | |
576 void TemplateTable::wide_lload() { | |
577 transition(vtos, ltos); | |
578 locals_index_wide(rbx); | |
579 __ movq(rax, laddress(rbx)); | |
580 } | |
581 | |
582 void TemplateTable::wide_fload() { | |
583 transition(vtos, ftos); | |
584 locals_index_wide(rbx); | |
585 __ movflt(xmm0, faddress(rbx)); | |
586 } | |
587 | |
588 void TemplateTable::wide_dload() { | |
589 transition(vtos, dtos); | |
590 locals_index_wide(rbx); | |
591 __ movdbl(xmm0, daddress(rbx)); | |
592 } | |
593 | |
594 void TemplateTable::wide_aload() { | |
595 transition(vtos, atos); | |
596 locals_index_wide(rbx); | |
304 | 597 __ movptr(rax, aaddress(rbx)); |
0 | 598 } |
599 | |
600 void TemplateTable::index_check(Register array, Register index) { | |
601 // destroys rbx | |
602 // check array | |
603 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
604 // sign extend index for use by indexed load | |
304 | 605 __ movl2ptr(index, index); |
0 | 606 // check index |
607 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
608 if (index != rbx) { | |
609 // ??? convention: move aberrant index into ebx for exception message | |
610 assert(rbx != array, "different registers"); | |
611 __ movl(rbx, index); | |
612 } | |
613 __ jump_cc(Assembler::aboveEqual, | |
614 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
615 } | |
616 | |
617 void TemplateTable::iaload() { | |
618 transition(itos, itos); | |
619 __ pop_ptr(rdx); | |
620 // eax: index | |
621 // rdx: array | |
622 index_check(rdx, rax); // kills rbx | |
623 __ movl(rax, Address(rdx, rax, | |
624 Address::times_4, | |
625 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
626 } | |
627 | |
628 void TemplateTable::laload() { | |
629 transition(itos, ltos); | |
630 __ pop_ptr(rdx); | |
631 // eax: index | |
632 // rdx: array | |
633 index_check(rdx, rax); // kills rbx | |
634 __ movq(rax, Address(rdx, rbx, | |
635 Address::times_8, | |
636 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
637 } | |
638 | |
639 void TemplateTable::faload() { | |
640 transition(itos, ftos); | |
641 __ pop_ptr(rdx); | |
642 // eax: index | |
643 // rdx: array | |
644 index_check(rdx, rax); // kills rbx | |
645 __ movflt(xmm0, Address(rdx, rax, | |
646 Address::times_4, | |
647 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
648 } | |
649 | |
650 void TemplateTable::daload() { | |
651 transition(itos, dtos); | |
652 __ pop_ptr(rdx); | |
653 // eax: index | |
654 // rdx: array | |
655 index_check(rdx, rax); // kills rbx | |
656 __ movdbl(xmm0, Address(rdx, rax, | |
657 Address::times_8, | |
658 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
659 } | |
660 | |
661 void TemplateTable::aaload() { | |
662 transition(itos, atos); | |
663 __ pop_ptr(rdx); | |
664 // eax: index | |
665 // rdx: array | |
666 index_check(rdx, rax); // kills rbx | |
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667 __ load_heap_oop(rax, Address(rdx, rax, |
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668 UseCompressedOops ? Address::times_4 : Address::times_8, |
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669 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
0 | 670 } |
671 | |
672 void TemplateTable::baload() { | |
673 transition(itos, itos); | |
674 __ pop_ptr(rdx); | |
675 // eax: index | |
676 // rdx: array | |
677 index_check(rdx, rax); // kills rbx | |
678 __ load_signed_byte(rax, | |
679 Address(rdx, rax, | |
680 Address::times_1, | |
681 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
682 } | |
683 | |
684 void TemplateTable::caload() { | |
685 transition(itos, itos); | |
686 __ pop_ptr(rdx); | |
687 // eax: index | |
688 // rdx: array | |
689 index_check(rdx, rax); // kills rbx | |
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690 __ load_unsigned_short(rax, |
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691 Address(rdx, rax, |
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692 Address::times_2, |
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693 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 694 } |
695 | |
696 // iload followed by caload frequent pair | |
697 void TemplateTable::fast_icaload() { | |
698 transition(vtos, itos); | |
699 // load index out of locals | |
700 locals_index(rbx); | |
701 __ movl(rax, iaddress(rbx)); | |
702 | |
703 // eax: index | |
704 // rdx: array | |
705 __ pop_ptr(rdx); | |
706 index_check(rdx, rax); // kills rbx | |
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707 __ load_unsigned_short(rax, |
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708 Address(rdx, rax, |
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709 Address::times_2, |
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710 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 711 } |
712 | |
713 void TemplateTable::saload() { | |
714 transition(itos, itos); | |
715 __ pop_ptr(rdx); | |
716 // eax: index | |
717 // rdx: array | |
718 index_check(rdx, rax); // kills rbx | |
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719 __ load_signed_short(rax, |
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720 Address(rdx, rax, |
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721 Address::times_2, |
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722 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
0 | 723 } |
724 | |
725 void TemplateTable::iload(int n) { | |
726 transition(vtos, itos); | |
727 __ movl(rax, iaddress(n)); | |
728 } | |
729 | |
730 void TemplateTable::lload(int n) { | |
731 transition(vtos, ltos); | |
732 __ movq(rax, laddress(n)); | |
733 } | |
734 | |
735 void TemplateTable::fload(int n) { | |
736 transition(vtos, ftos); | |
737 __ movflt(xmm0, faddress(n)); | |
738 } | |
739 | |
740 void TemplateTable::dload(int n) { | |
741 transition(vtos, dtos); | |
742 __ movdbl(xmm0, daddress(n)); | |
743 } | |
744 | |
745 void TemplateTable::aload(int n) { | |
746 transition(vtos, atos); | |
304 | 747 __ movptr(rax, aaddress(n)); |
0 | 748 } |
749 | |
750 void TemplateTable::aload_0() { | |
751 transition(vtos, atos); | |
752 // According to bytecode histograms, the pairs: | |
753 // | |
754 // _aload_0, _fast_igetfield | |
755 // _aload_0, _fast_agetfield | |
756 // _aload_0, _fast_fgetfield | |
757 // | |
758 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
759 // _aload_0 bytecode checks if the next bytecode is either | |
760 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
761 // rewrites the current bytecode into a pair bytecode; otherwise it | |
762 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
763 // the pair check anymore. | |
764 // | |
765 // Note: If the next bytecode is _getfield, the rewrite must be | |
766 // delayed, otherwise we may miss an opportunity for a pair. | |
767 // | |
768 // Also rewrite frequent pairs | |
769 // aload_0, aload_1 | |
770 // aload_0, iload_1 | |
771 // These bytecodes with a small amount of code are most profitable | |
772 // to rewrite | |
773 if (RewriteFrequentPairs) { | |
774 Label rewrite, done; | |
775 const Register bc = c_rarg3; | |
776 assert(rbx != bc, "register damaged"); | |
777 // get next byte | |
778 __ load_unsigned_byte(rbx, | |
779 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
780 | |
781 // do actual aload_0 | |
782 aload(0); | |
783 | |
784 // if _getfield then wait with rewrite | |
785 __ cmpl(rbx, Bytecodes::_getfield); | |
786 __ jcc(Assembler::equal, done); | |
787 | |
788 // if _igetfield then reqrite to _fast_iaccess_0 | |
789 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
790 Bytecodes::_aload_0, | |
791 "fix bytecode definition"); | |
792 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
793 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
794 __ jccb(Assembler::equal, rewrite); | |
795 | |
796 // if _agetfield then reqrite to _fast_aaccess_0 | |
797 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
798 Bytecodes::_aload_0, | |
799 "fix bytecode definition"); | |
800 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
801 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
802 __ jccb(Assembler::equal, rewrite); | |
803 | |
804 // if _fgetfield then reqrite to _fast_faccess_0 | |
805 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
806 Bytecodes::_aload_0, | |
807 "fix bytecode definition"); | |
808 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
809 __ movl(bc, Bytecodes::_fast_faccess_0); | |
810 __ jccb(Assembler::equal, rewrite); | |
811 | |
812 // else rewrite to _fast_aload0 | |
813 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
814 Bytecodes::_aload_0, | |
815 "fix bytecode definition"); | |
816 __ movl(bc, Bytecodes::_fast_aload_0); | |
817 | |
818 // rewrite | |
819 // bc: fast bytecode | |
820 __ bind(rewrite); | |
821 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
822 | |
823 __ bind(done); | |
824 } else { | |
825 aload(0); | |
826 } | |
827 } | |
828 | |
829 void TemplateTable::istore() { | |
830 transition(itos, vtos); | |
831 locals_index(rbx); | |
832 __ movl(iaddress(rbx), rax); | |
833 } | |
834 | |
835 void TemplateTable::lstore() { | |
836 transition(ltos, vtos); | |
837 locals_index(rbx); | |
838 __ movq(laddress(rbx), rax); | |
839 } | |
840 | |
841 void TemplateTable::fstore() { | |
842 transition(ftos, vtos); | |
843 locals_index(rbx); | |
844 __ movflt(faddress(rbx), xmm0); | |
845 } | |
846 | |
847 void TemplateTable::dstore() { | |
848 transition(dtos, vtos); | |
849 locals_index(rbx); | |
850 __ movdbl(daddress(rbx), xmm0); | |
851 } | |
852 | |
853 void TemplateTable::astore() { | |
854 transition(vtos, vtos); | |
1506 | 855 __ pop_ptr(rax); |
0 | 856 locals_index(rbx); |
304 | 857 __ movptr(aaddress(rbx), rax); |
0 | 858 } |
859 | |
860 void TemplateTable::wide_istore() { | |
861 transition(vtos, vtos); | |
862 __ pop_i(); | |
863 locals_index_wide(rbx); | |
864 __ movl(iaddress(rbx), rax); | |
865 } | |
866 | |
867 void TemplateTable::wide_lstore() { | |
868 transition(vtos, vtos); | |
869 __ pop_l(); | |
870 locals_index_wide(rbx); | |
871 __ movq(laddress(rbx), rax); | |
872 } | |
873 | |
874 void TemplateTable::wide_fstore() { | |
875 transition(vtos, vtos); | |
876 __ pop_f(); | |
877 locals_index_wide(rbx); | |
878 __ movflt(faddress(rbx), xmm0); | |
879 } | |
880 | |
881 void TemplateTable::wide_dstore() { | |
882 transition(vtos, vtos); | |
883 __ pop_d(); | |
884 locals_index_wide(rbx); | |
885 __ movdbl(daddress(rbx), xmm0); | |
886 } | |
887 | |
888 void TemplateTable::wide_astore() { | |
889 transition(vtos, vtos); | |
1506 | 890 __ pop_ptr(rax); |
0 | 891 locals_index_wide(rbx); |
304 | 892 __ movptr(aaddress(rbx), rax); |
0 | 893 } |
894 | |
895 void TemplateTable::iastore() { | |
896 transition(itos, vtos); | |
897 __ pop_i(rbx); | |
898 __ pop_ptr(rdx); | |
899 // eax: value | |
900 // ebx: index | |
901 // rdx: array | |
902 index_check(rdx, rbx); // prefer index in ebx | |
903 __ movl(Address(rdx, rbx, | |
904 Address::times_4, | |
905 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
906 rax); | |
907 } | |
908 | |
909 void TemplateTable::lastore() { | |
910 transition(ltos, vtos); | |
911 __ pop_i(rbx); | |
912 __ pop_ptr(rdx); | |
913 // rax: value | |
914 // ebx: index | |
915 // rdx: array | |
916 index_check(rdx, rbx); // prefer index in ebx | |
917 __ movq(Address(rdx, rbx, | |
918 Address::times_8, | |
919 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
920 rax); | |
921 } | |
922 | |
923 void TemplateTable::fastore() { | |
924 transition(ftos, vtos); | |
925 __ pop_i(rbx); | |
926 __ pop_ptr(rdx); | |
927 // xmm0: value | |
928 // ebx: index | |
929 // rdx: array | |
930 index_check(rdx, rbx); // prefer index in ebx | |
931 __ movflt(Address(rdx, rbx, | |
932 Address::times_4, | |
933 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
934 xmm0); | |
935 } | |
936 | |
937 void TemplateTable::dastore() { | |
938 transition(dtos, vtos); | |
939 __ pop_i(rbx); | |
940 __ pop_ptr(rdx); | |
941 // xmm0: value | |
942 // ebx: index | |
943 // rdx: array | |
944 index_check(rdx, rbx); // prefer index in ebx | |
945 __ movdbl(Address(rdx, rbx, | |
946 Address::times_8, | |
947 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
948 xmm0); | |
949 } | |
950 | |
951 void TemplateTable::aastore() { | |
952 Label is_null, ok_is_subtype, done; | |
953 transition(vtos, vtos); | |
954 // stack: ..., array, index, value | |
304 | 955 __ movptr(rax, at_tos()); // value |
0 | 956 __ movl(rcx, at_tos_p1()); // index |
304 | 957 __ movptr(rdx, at_tos_p2()); // array |
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958 |
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959 Address element_address(rdx, rcx, |
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960 UseCompressedOops? Address::times_4 : Address::times_8, |
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961 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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962 |
0 | 963 index_check(rdx, rcx); // kills rbx |
964 // do array store check - check for NULL value first | |
304 | 965 __ testptr(rax, rax); |
0 | 966 __ jcc(Assembler::zero, is_null); |
967 | |
968 // Move subklass into rbx | |
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969 __ load_klass(rbx, rax); |
0 | 970 // Move superklass into rax |
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971 __ load_klass(rax, rdx); |
304 | 972 __ movptr(rax, Address(rax, |
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973 ObjArrayKlass::element_klass_offset())); |
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974 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
362 | 975 __ lea(rdx, element_address); |
0 | 976 |
977 // Generate subtype check. Blows rcx, rdi | |
978 // Superklass in rax. Subklass in rbx. | |
979 __ gen_subtype_check(rbx, ok_is_subtype); | |
980 | |
981 // Come here on failure | |
982 // object is at TOS | |
983 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
984 | |
985 // Come here on success | |
986 __ bind(ok_is_subtype); | |
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987 |
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988 // Get the value we will store |
362 | 989 __ movptr(rax, at_tos()); |
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990 // Now store using the appropriate barrier |
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991 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
0 | 992 __ jmp(done); |
993 | |
994 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
995 __ bind(is_null); | |
996 __ profile_null_seen(rbx); | |
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997 |
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998 // Store a NULL |
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999 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
0 | 1000 |
1001 // Pop stack arguments | |
1002 __ bind(done); | |
1506 | 1003 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
0 | 1004 } |
1005 | |
1006 void TemplateTable::bastore() { | |
1007 transition(itos, vtos); | |
1008 __ pop_i(rbx); | |
1009 __ pop_ptr(rdx); | |
1010 // eax: value | |
1011 // ebx: index | |
1012 // rdx: array | |
1013 index_check(rdx, rbx); // prefer index in ebx | |
1014 __ movb(Address(rdx, rbx, | |
1015 Address::times_1, | |
1016 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
1017 rax); | |
1018 } | |
1019 | |
1020 void TemplateTable::castore() { | |
1021 transition(itos, vtos); | |
1022 __ pop_i(rbx); | |
1023 __ pop_ptr(rdx); | |
1024 // eax: value | |
1025 // ebx: index | |
1026 // rdx: array | |
1027 index_check(rdx, rbx); // prefer index in ebx | |
1028 __ movw(Address(rdx, rbx, | |
1029 Address::times_2, | |
1030 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
1031 rax); | |
1032 } | |
1033 | |
1034 void TemplateTable::sastore() { | |
1035 castore(); | |
1036 } | |
1037 | |
1038 void TemplateTable::istore(int n) { | |
1039 transition(itos, vtos); | |
1040 __ movl(iaddress(n), rax); | |
1041 } | |
1042 | |
1043 void TemplateTable::lstore(int n) { | |
1044 transition(ltos, vtos); | |
1045 __ movq(laddress(n), rax); | |
1046 } | |
1047 | |
1048 void TemplateTable::fstore(int n) { | |
1049 transition(ftos, vtos); | |
1050 __ movflt(faddress(n), xmm0); | |
1051 } | |
1052 | |
1053 void TemplateTable::dstore(int n) { | |
1054 transition(dtos, vtos); | |
1055 __ movdbl(daddress(n), xmm0); | |
1056 } | |
1057 | |
1058 void TemplateTable::astore(int n) { | |
1059 transition(vtos, vtos); | |
1506 | 1060 __ pop_ptr(rax); |
304 | 1061 __ movptr(aaddress(n), rax); |
0 | 1062 } |
1063 | |
1064 void TemplateTable::pop() { | |
1065 transition(vtos, vtos); | |
1506 | 1066 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1067 } |
1068 | |
1069 void TemplateTable::pop2() { | |
1070 transition(vtos, vtos); | |
1506 | 1071 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1072 } |
1073 | |
1074 void TemplateTable::dup() { | |
1075 transition(vtos, vtos); | |
1506 | 1076 __ load_ptr(0, rax); |
1077 __ push_ptr(rax); | |
0 | 1078 // stack: ..., a, a |
1079 } | |
1080 | |
1081 void TemplateTable::dup_x1() { | |
1082 transition(vtos, vtos); | |
1083 // stack: ..., a, b | |
1506 | 1084 __ load_ptr( 0, rax); // load b |
1085 __ load_ptr( 1, rcx); // load a | |
1086 __ store_ptr(1, rax); // store b | |
1087 __ store_ptr(0, rcx); // store a | |
1088 __ push_ptr(rax); // push b | |
0 | 1089 // stack: ..., b, a, b |
1090 } | |
1091 | |
1092 void TemplateTable::dup_x2() { | |
1093 transition(vtos, vtos); | |
1094 // stack: ..., a, b, c | |
1506 | 1095 __ load_ptr( 0, rax); // load c |
1096 __ load_ptr( 2, rcx); // load a | |
1097 __ store_ptr(2, rax); // store c in a | |
1098 __ push_ptr(rax); // push c | |
0 | 1099 // stack: ..., c, b, c, c |
1506 | 1100 __ load_ptr( 2, rax); // load b |
1101 __ store_ptr(2, rcx); // store a in b | |
0 | 1102 // stack: ..., c, a, c, c |
1506 | 1103 __ store_ptr(1, rax); // store b in c |
0 | 1104 // stack: ..., c, a, b, c |
1105 } | |
1106 | |
1107 void TemplateTable::dup2() { | |
1108 transition(vtos, vtos); | |
1109 // stack: ..., a, b | |
1506 | 1110 __ load_ptr(1, rax); // load a |
1111 __ push_ptr(rax); // push a | |
1112 __ load_ptr(1, rax); // load b | |
1113 __ push_ptr(rax); // push b | |
0 | 1114 // stack: ..., a, b, a, b |
1115 } | |
1116 | |
1117 void TemplateTable::dup2_x1() { | |
1118 transition(vtos, vtos); | |
1119 // stack: ..., a, b, c | |
1506 | 1120 __ load_ptr( 0, rcx); // load c |
1121 __ load_ptr( 1, rax); // load b | |
1122 __ push_ptr(rax); // push b | |
1123 __ push_ptr(rcx); // push c | |
0 | 1124 // stack: ..., a, b, c, b, c |
1506 | 1125 __ store_ptr(3, rcx); // store c in b |
0 | 1126 // stack: ..., a, c, c, b, c |
1506 | 1127 __ load_ptr( 4, rcx); // load a |
1128 __ store_ptr(2, rcx); // store a in 2nd c | |
0 | 1129 // stack: ..., a, c, a, b, c |
1506 | 1130 __ store_ptr(4, rax); // store b in a |
0 | 1131 // stack: ..., b, c, a, b, c |
1132 } | |
1133 | |
1134 void TemplateTable::dup2_x2() { | |
1135 transition(vtos, vtos); | |
1136 // stack: ..., a, b, c, d | |
1506 | 1137 __ load_ptr( 0, rcx); // load d |
1138 __ load_ptr( 1, rax); // load c | |
1139 __ push_ptr(rax); // push c | |
1140 __ push_ptr(rcx); // push d | |
0 | 1141 // stack: ..., a, b, c, d, c, d |
1506 | 1142 __ load_ptr( 4, rax); // load b |
1143 __ store_ptr(2, rax); // store b in d | |
1144 __ store_ptr(4, rcx); // store d in b | |
0 | 1145 // stack: ..., a, d, c, b, c, d |
1506 | 1146 __ load_ptr( 5, rcx); // load a |
1147 __ load_ptr( 3, rax); // load c | |
1148 __ store_ptr(3, rcx); // store a in c | |
1149 __ store_ptr(5, rax); // store c in a | |
0 | 1150 // stack: ..., c, d, a, b, c, d |
1151 } | |
1152 | |
1153 void TemplateTable::swap() { | |
1154 transition(vtos, vtos); | |
1155 // stack: ..., a, b | |
1506 | 1156 __ load_ptr( 1, rcx); // load a |
1157 __ load_ptr( 0, rax); // load b | |
1158 __ store_ptr(0, rcx); // store a in b | |
1159 __ store_ptr(1, rax); // store b in a | |
0 | 1160 // stack: ..., b, a |
1161 } | |
1162 | |
1163 void TemplateTable::iop2(Operation op) { | |
1164 transition(itos, itos); | |
1165 switch (op) { | |
1166 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
1167 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
1168 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
1169 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
1170 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
1171 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
1172 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
1173 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
1174 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
1175 default : ShouldNotReachHere(); | |
1176 } | |
1177 } | |
1178 | |
1179 void TemplateTable::lop2(Operation op) { | |
1180 transition(ltos, ltos); | |
1181 switch (op) { | |
1506 | 1182 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
1183 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
1184 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
1185 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
1186 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
1187 default : ShouldNotReachHere(); | |
0 | 1188 } |
1189 } | |
1190 | |
1191 void TemplateTable::idiv() { | |
1192 transition(itos, itos); | |
1193 __ movl(rcx, rax); | |
1194 __ pop_i(rax); | |
1195 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1196 // they are not equal, one could do a normal division (no correction | |
1197 // needed), which may speed up this implementation for the common case. | |
1198 // (see also JVM spec., p.243 & p.271) | |
1199 __ corrected_idivl(rcx); | |
1200 } | |
1201 | |
1202 void TemplateTable::irem() { | |
1203 transition(itos, itos); | |
1204 __ movl(rcx, rax); | |
1205 __ pop_i(rax); | |
1206 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1207 // they are not equal, one could do a normal division (no correction | |
1208 // needed), which may speed up this implementation for the common case. | |
1209 // (see also JVM spec., p.243 & p.271) | |
1210 __ corrected_idivl(rcx); | |
1211 __ movl(rax, rdx); | |
1212 } | |
1213 | |
1214 void TemplateTable::lmul() { | |
1215 transition(ltos, ltos); | |
1216 __ pop_l(rdx); | |
1217 __ imulq(rax, rdx); | |
1218 } | |
1219 | |
1220 void TemplateTable::ldiv() { | |
1221 transition(ltos, ltos); | |
304 | 1222 __ mov(rcx, rax); |
0 | 1223 __ pop_l(rax); |
1224 // generate explicit div0 check | |
1225 __ testq(rcx, rcx); | |
1226 __ jump_cc(Assembler::zero, | |
1227 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1228 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1229 // they are not equal, one could do a normal division (no correction | |
1230 // needed), which may speed up this implementation for the common case. | |
1231 // (see also JVM spec., p.243 & p.271) | |
1232 __ corrected_idivq(rcx); // kills rbx | |
1233 } | |
1234 | |
1235 void TemplateTable::lrem() { | |
1236 transition(ltos, ltos); | |
304 | 1237 __ mov(rcx, rax); |
0 | 1238 __ pop_l(rax); |
1239 __ testq(rcx, rcx); | |
1240 __ jump_cc(Assembler::zero, | |
1241 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1242 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1243 // they are not equal, one could do a normal division (no correction | |
1244 // needed), which may speed up this implementation for the common case. | |
1245 // (see also JVM spec., p.243 & p.271) | |
1246 __ corrected_idivq(rcx); // kills rbx | |
304 | 1247 __ mov(rax, rdx); |
0 | 1248 } |
1249 | |
1250 void TemplateTable::lshl() { | |
1251 transition(itos, ltos); | |
1252 __ movl(rcx, rax); // get shift count | |
1253 __ pop_l(rax); // get shift value | |
1254 __ shlq(rax); | |
1255 } | |
1256 | |
1257 void TemplateTable::lshr() { | |
1258 transition(itos, ltos); | |
1259 __ movl(rcx, rax); // get shift count | |
1260 __ pop_l(rax); // get shift value | |
1261 __ sarq(rax); | |
1262 } | |
1263 | |
1264 void TemplateTable::lushr() { | |
1265 transition(itos, ltos); | |
1266 __ movl(rcx, rax); // get shift count | |
1267 __ pop_l(rax); // get shift value | |
1268 __ shrq(rax); | |
1269 } | |
1270 | |
1271 void TemplateTable::fop2(Operation op) { | |
1272 transition(ftos, ftos); | |
1273 switch (op) { | |
1274 case add: | |
1275 __ addss(xmm0, at_rsp()); | |
1506 | 1276 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1277 break; |
1278 case sub: | |
1279 __ movflt(xmm1, xmm0); | |
1280 __ pop_f(xmm0); | |
1281 __ subss(xmm0, xmm1); | |
1282 break; | |
1283 case mul: | |
1284 __ mulss(xmm0, at_rsp()); | |
1506 | 1285 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1286 break; |
1287 case div: | |
1288 __ movflt(xmm1, xmm0); | |
1289 __ pop_f(xmm0); | |
1290 __ divss(xmm0, xmm1); | |
1291 break; | |
1292 case rem: | |
1293 __ movflt(xmm1, xmm0); | |
1294 __ pop_f(xmm0); | |
1295 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
1296 break; | |
1297 default: | |
1298 ShouldNotReachHere(); | |
1299 break; | |
1300 } | |
1301 } | |
1302 | |
1303 void TemplateTable::dop2(Operation op) { | |
1304 transition(dtos, dtos); | |
1305 switch (op) { | |
1306 case add: | |
1307 __ addsd(xmm0, at_rsp()); | |
1506 | 1308 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1309 break; |
1310 case sub: | |
1311 __ movdbl(xmm1, xmm0); | |
1312 __ pop_d(xmm0); | |
1313 __ subsd(xmm0, xmm1); | |
1314 break; | |
1315 case mul: | |
1316 __ mulsd(xmm0, at_rsp()); | |
1506 | 1317 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1318 break; |
1319 case div: | |
1320 __ movdbl(xmm1, xmm0); | |
1321 __ pop_d(xmm0); | |
1322 __ divsd(xmm0, xmm1); | |
1323 break; | |
1324 case rem: | |
1325 __ movdbl(xmm1, xmm0); | |
1326 __ pop_d(xmm0); | |
1327 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
1328 break; | |
1329 default: | |
1330 ShouldNotReachHere(); | |
1331 break; | |
1332 } | |
1333 } | |
1334 | |
1335 void TemplateTable::ineg() { | |
1336 transition(itos, itos); | |
1337 __ negl(rax); | |
1338 } | |
1339 | |
1340 void TemplateTable::lneg() { | |
1341 transition(ltos, ltos); | |
1342 __ negq(rax); | |
1343 } | |
1344 | |
1345 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
1346 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
1347 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
1348 // of 128-bits operands for SSE instructions. | |
1349 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
1350 // Store the value to a 128-bits operand. | |
1351 operand[0] = lo; | |
1352 operand[1] = hi; | |
1353 return operand; | |
1354 } | |
1355 | |
1356 // Buffer for 128-bits masks used by SSE instructions. | |
1357 static jlong float_signflip_pool[2*2]; | |
1358 static jlong double_signflip_pool[2*2]; | |
1359 | |
1360 void TemplateTable::fneg() { | |
1361 transition(ftos, ftos); | |
1362 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
1363 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
1364 } | |
1365 | |
1366 void TemplateTable::dneg() { | |
1367 transition(dtos, dtos); | |
1368 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
1369 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
1370 } | |
1371 | |
1372 void TemplateTable::iinc() { | |
1373 transition(vtos, vtos); | |
1374 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
1375 locals_index(rbx); | |
1376 __ addl(iaddress(rbx), rdx); | |
1377 } | |
1378 | |
1379 void TemplateTable::wide_iinc() { | |
1380 transition(vtos, vtos); | |
1381 __ movl(rdx, at_bcp(4)); // get constant | |
1382 locals_index_wide(rbx); | |
1383 __ bswapl(rdx); // swap bytes & sign-extend constant | |
1384 __ sarl(rdx, 16); | |
1385 __ addl(iaddress(rbx), rdx); | |
1386 // Note: should probably use only one movl to get both | |
1387 // the index and the constant -> fix this | |
1388 } | |
1389 | |
1390 void TemplateTable::convert() { | |
1391 // Checking | |
1392 #ifdef ASSERT | |
1393 { | |
1394 TosState tos_in = ilgl; | |
1395 TosState tos_out = ilgl; | |
1396 switch (bytecode()) { | |
1397 case Bytecodes::_i2l: // fall through | |
1398 case Bytecodes::_i2f: // fall through | |
1399 case Bytecodes::_i2d: // fall through | |
1400 case Bytecodes::_i2b: // fall through | |
1401 case Bytecodes::_i2c: // fall through | |
1402 case Bytecodes::_i2s: tos_in = itos; break; | |
1403 case Bytecodes::_l2i: // fall through | |
1404 case Bytecodes::_l2f: // fall through | |
1405 case Bytecodes::_l2d: tos_in = ltos; break; | |
1406 case Bytecodes::_f2i: // fall through | |
1407 case Bytecodes::_f2l: // fall through | |
1408 case Bytecodes::_f2d: tos_in = ftos; break; | |
1409 case Bytecodes::_d2i: // fall through | |
1410 case Bytecodes::_d2l: // fall through | |
1411 case Bytecodes::_d2f: tos_in = dtos; break; | |
1412 default : ShouldNotReachHere(); | |
1413 } | |
1414 switch (bytecode()) { | |
1415 case Bytecodes::_l2i: // fall through | |
1416 case Bytecodes::_f2i: // fall through | |
1417 case Bytecodes::_d2i: // fall through | |
1418 case Bytecodes::_i2b: // fall through | |
1419 case Bytecodes::_i2c: // fall through | |
1420 case Bytecodes::_i2s: tos_out = itos; break; | |
1421 case Bytecodes::_i2l: // fall through | |
1422 case Bytecodes::_f2l: // fall through | |
1423 case Bytecodes::_d2l: tos_out = ltos; break; | |
1424 case Bytecodes::_i2f: // fall through | |
1425 case Bytecodes::_l2f: // fall through | |
1426 case Bytecodes::_d2f: tos_out = ftos; break; | |
1427 case Bytecodes::_i2d: // fall through | |
1428 case Bytecodes::_l2d: // fall through | |
1429 case Bytecodes::_f2d: tos_out = dtos; break; | |
1430 default : ShouldNotReachHere(); | |
1431 } | |
1432 transition(tos_in, tos_out); | |
1433 } | |
1434 #endif // ASSERT | |
1435 | |
1436 static const int64_t is_nan = 0x8000000000000000L; | |
1437 | |
1438 // Conversion | |
1439 switch (bytecode()) { | |
1440 case Bytecodes::_i2l: | |
1441 __ movslq(rax, rax); | |
1442 break; | |
1443 case Bytecodes::_i2f: | |
1444 __ cvtsi2ssl(xmm0, rax); | |
1445 break; | |
1446 case Bytecodes::_i2d: | |
1447 __ cvtsi2sdl(xmm0, rax); | |
1448 break; | |
1449 case Bytecodes::_i2b: | |
1450 __ movsbl(rax, rax); | |
1451 break; | |
1452 case Bytecodes::_i2c: | |
1453 __ movzwl(rax, rax); | |
1454 break; | |
1455 case Bytecodes::_i2s: | |
1456 __ movswl(rax, rax); | |
1457 break; | |
1458 case Bytecodes::_l2i: | |
1459 __ movl(rax, rax); | |
1460 break; | |
1461 case Bytecodes::_l2f: | |
1462 __ cvtsi2ssq(xmm0, rax); | |
1463 break; | |
1464 case Bytecodes::_l2d: | |
1465 __ cvtsi2sdq(xmm0, rax); | |
1466 break; | |
1467 case Bytecodes::_f2i: | |
1468 { | |
1469 Label L; | |
1470 __ cvttss2sil(rax, xmm0); | |
1471 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1472 __ jcc(Assembler::notEqual, L); | |
1473 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
1474 __ bind(L); | |
1475 } | |
1476 break; | |
1477 case Bytecodes::_f2l: | |
1478 { | |
1479 Label L; | |
1480 __ cvttss2siq(rax, xmm0); | |
1481 // NaN or overflow/underflow? | |
1482 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1483 __ jcc(Assembler::notEqual, L); | |
1484 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
1485 __ bind(L); | |
1486 } | |
1487 break; | |
1488 case Bytecodes::_f2d: | |
1489 __ cvtss2sd(xmm0, xmm0); | |
1490 break; | |
1491 case Bytecodes::_d2i: | |
1492 { | |
1493 Label L; | |
1494 __ cvttsd2sil(rax, xmm0); | |
1495 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1496 __ jcc(Assembler::notEqual, L); | |
1497 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
1498 __ bind(L); | |
1499 } | |
1500 break; | |
1501 case Bytecodes::_d2l: | |
1502 { | |
1503 Label L; | |
1504 __ cvttsd2siq(rax, xmm0); | |
1505 // NaN or overflow/underflow? | |
1506 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1507 __ jcc(Assembler::notEqual, L); | |
1508 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
1509 __ bind(L); | |
1510 } | |
1511 break; | |
1512 case Bytecodes::_d2f: | |
1513 __ cvtsd2ss(xmm0, xmm0); | |
1514 break; | |
1515 default: | |
1516 ShouldNotReachHere(); | |
1517 } | |
1518 } | |
1519 | |
1520 void TemplateTable::lcmp() { | |
1521 transition(ltos, itos); | |
1522 Label done; | |
1523 __ pop_l(rdx); | |
1524 __ cmpq(rdx, rax); | |
1525 __ movl(rax, -1); | |
1526 __ jccb(Assembler::less, done); | |
1527 __ setb(Assembler::notEqual, rax); | |
1528 __ movzbl(rax, rax); | |
1529 __ bind(done); | |
1530 } | |
1531 | |
1532 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1533 Label done; | |
1534 if (is_float) { | |
1535 // XXX get rid of pop here, use ... reg, mem32 | |
1536 __ pop_f(xmm1); | |
1537 __ ucomiss(xmm1, xmm0); | |
1538 } else { | |
1539 // XXX get rid of pop here, use ... reg, mem64 | |
1540 __ pop_d(xmm1); | |
1541 __ ucomisd(xmm1, xmm0); | |
1542 } | |
1543 if (unordered_result < 0) { | |
1544 __ movl(rax, -1); | |
1545 __ jccb(Assembler::parity, done); | |
1546 __ jccb(Assembler::below, done); | |
1547 __ setb(Assembler::notEqual, rdx); | |
1548 __ movzbl(rax, rdx); | |
1549 } else { | |
1550 __ movl(rax, 1); | |
1551 __ jccb(Assembler::parity, done); | |
1552 __ jccb(Assembler::above, done); | |
1553 __ movl(rax, 0); | |
1554 __ jccb(Assembler::equal, done); | |
1555 __ decrementl(rax); | |
1556 } | |
1557 __ bind(done); | |
1558 } | |
1559 | |
1560 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1561 __ get_method(rcx); // rcx holds method | |
1562 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
1563 // holds bumped taken count | |
1564 | |
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1565 const ByteSize be_offset = Method::backedge_counter_offset() + |
0 | 1566 InvocationCounter::counter_offset(); |
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1567 const ByteSize inv_offset = Method::invocation_counter_offset() + |
0 | 1568 InvocationCounter::counter_offset(); |
1569 const int method_offset = frame::interpreter_frame_method_offset * wordSize; | |
1570 | |
1571 // Load up edx with the branch displacement | |
1572 __ movl(rdx, at_bcp(1)); | |
1573 __ bswapl(rdx); | |
1574 | |
1575 if (!is_wide) { | |
1576 __ sarl(rdx, 16); | |
1577 } | |
304 | 1578 __ movl2ptr(rdx, rdx); |
0 | 1579 |
1580 // Handle all the JSR stuff here, then exit. | |
1581 // It's much shorter and cleaner than intermingling with the non-JSR | |
605 | 1582 // normal-branch stuff occurring below. |
0 | 1583 if (is_jsr) { |
1584 // Pre-load the next target bytecode into rbx | |
1585 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
1586 | |
1587 // compute return address as bci in rax | |
304 | 1588 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1589 in_bytes(ConstMethod::codes_offset()))); |
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1590 __ subptr(rax, Address(rcx, Method::const_offset())); |
0 | 1591 // Adjust the bcp in r13 by the displacement in rdx |
304 | 1592 __ addptr(r13, rdx); |
0 | 1593 // jsr returns atos that is not an oop |
1594 __ push_i(rax); | |
1595 __ dispatch_only(vtos); | |
1596 return; | |
1597 } | |
1598 | |
1599 // Normal (non-jsr) branch handling | |
1600 | |
1601 // Adjust the bcp in r13 by the displacement in rdx | |
304 | 1602 __ addptr(r13, rdx); |
0 | 1603 |
1604 assert(UseLoopCounter || !UseOnStackReplacement, | |
1605 "on-stack-replacement requires loop counters"); | |
1606 Label backedge_counter_overflow; | |
1607 Label profile_method; | |
1608 Label dispatch; | |
1609 if (UseLoopCounter) { | |
1610 // increment backedge counter for backward branches | |
1611 // rax: MDO | |
1612 // ebx: MDO bumped taken-count | |
1613 // rcx: method | |
1614 // rdx: target offset | |
1615 // r13: target bcp | |
1616 // r14: locals pointer | |
1617 __ testl(rdx, rdx); // check if forward or backward branch | |
1618 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
1783 | 1619 if (TieredCompilation) { |
1620 Label no_mdo; | |
1621 int increment = InvocationCounter::count_increment; | |
1622 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1623 if (ProfileInterpreter) { | |
1624 // Are we profiling? | |
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1625 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
1783 | 1626 __ testptr(rbx, rbx); |
1627 __ jccb(Assembler::zero, no_mdo); | |
1628 // Increment the MDO backedge counter | |
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1629 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1630 in_bytes(InvocationCounter::counter_offset())); |
1631 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
1632 rax, false, Assembler::zero, &backedge_counter_overflow); | |
1633 __ jmp(dispatch); | |
0 | 1634 } |
1783 | 1635 __ bind(no_mdo); |
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1636 // Increment backedge counter in Method* |
1783 | 1637 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
1638 rax, false, Assembler::zero, &backedge_counter_overflow); | |
0 | 1639 } else { |
1783 | 1640 // increment counter |
1641 __ movl(rax, Address(rcx, be_offset)); // load backedge counter | |
1642 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
1643 __ movl(Address(rcx, be_offset), rax); // store counter | |
1644 | |
1645 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
1646 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits | |
1647 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
1648 | |
1649 if (ProfileInterpreter) { | |
1650 // Test to see if we should create a method data oop | |
0 | 1651 __ cmp32(rax, |
1783 | 1652 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
1653 __ jcc(Assembler::less, dispatch); | |
1654 | |
1655 // if no method data exists, go to profile method | |
1656 __ test_method_data_pointer(rax, profile_method); | |
1657 | |
1658 if (UseOnStackReplacement) { | |
1659 // check for overflow against ebx which is the MDO taken count | |
1660 __ cmp32(rbx, | |
1661 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1662 __ jcc(Assembler::below, dispatch); | |
1663 | |
1664 // When ProfileInterpreter is on, the backedge_count comes | |
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1665 // from the MethodData*, which value does not get reset on |
1783 | 1666 // the call to frequency_counter_overflow(). To avoid |
1667 // excessive calls to the overflow routine while the method is | |
1668 // being compiled, add a second test to make sure the overflow | |
1669 // function is called only once every overflow_frequency. | |
1670 const int overflow_frequency = 1024; | |
1671 __ andl(rbx, overflow_frequency - 1); | |
1672 __ jcc(Assembler::zero, backedge_counter_overflow); | |
1673 | |
1674 } | |
1675 } else { | |
1676 if (UseOnStackReplacement) { | |
1677 // check for overflow against eax, which is the sum of the | |
1678 // counters | |
1679 __ cmp32(rax, | |
1680 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1681 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
1682 | |
1683 } | |
0 | 1684 } |
1685 } | |
1686 __ bind(dispatch); | |
1687 } | |
1688 | |
1689 // Pre-load the next target bytecode into rbx | |
1690 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
1691 | |
1692 // continue with the bytecode @ target | |
1693 // eax: return bci for jsr's, unused otherwise | |
1694 // ebx: target bytecode | |
1695 // r13: target bcp | |
1696 __ dispatch_only(vtos); | |
1697 | |
1698 if (UseLoopCounter) { | |
1699 if (ProfileInterpreter) { | |
1700 // Out-of-line code to allocate method data oop. | |
1701 __ bind(profile_method); | |
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1702 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
0 | 1703 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1704 __ set_method_data_pointer_for_bcp(); |
0 | 1705 __ jmp(dispatch); |
1706 } | |
1707 | |
1708 if (UseOnStackReplacement) { | |
1709 // invocation counter overflow | |
1710 __ bind(backedge_counter_overflow); | |
304 | 1711 __ negptr(rdx); |
1712 __ addptr(rdx, r13); // branch bcp | |
0 | 1713 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
1714 __ call_VM(noreg, | |
1715 CAST_FROM_FN_PTR(address, | |
1716 InterpreterRuntime::frequency_counter_overflow), | |
1717 rdx); | |
1718 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
1719 | |
1720 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
1721 // ebx: target bytecode | |
1722 // rdx: scratch | |
1723 // r14: locals pointer | |
1724 // r13: bcp | |
304 | 1725 __ testptr(rax, rax); // test result |
0 | 1726 __ jcc(Assembler::zero, dispatch); // no osr if null |
1727 // nmethod may have been invalidated (VM may block upon call_VM return) | |
1728 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
1729 __ cmpl(rcx, InvalidOSREntryBci); | |
1730 __ jcc(Assembler::equal, dispatch); | |
1731 | |
1732 // We have the address of an on stack replacement routine in eax | |
1733 // We need to prepare to execute the OSR method. First we must | |
1734 // migrate the locals and monitors off of the stack. | |
1735 | |
304 | 1736 __ mov(r13, rax); // save the nmethod |
0 | 1737 |
1738 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
1739 | |
1740 // eax is OSR buffer, move it to expected parameter location | |
304 | 1741 __ mov(j_rarg0, rax); |
0 | 1742 |
1743 // We use j_rarg definitions here so that registers don't conflict as parameter | |
1744 // registers change across platforms as we are in the midst of a calling | |
1745 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
1746 | |
1747 const Register retaddr = j_rarg2; | |
1748 const Register sender_sp = j_rarg1; | |
1749 | |
1750 // pop the interpreter frame | |
304 | 1751 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
0 | 1752 __ leave(); // remove frame anchor |
304 | 1753 __ pop(retaddr); // get return address |
1754 __ mov(rsp, sender_sp); // set sp to sender sp | |
0 | 1755 // Ensure compiled code always sees stack at proper alignment |
304 | 1756 __ andptr(rsp, -(StackAlignmentInBytes)); |
0 | 1757 |
1758 // unlike x86 we need no specialized return from compiled code | |
1759 // to the interpreter or the call stub. | |
1760 | |
1761 // push the return address | |
304 | 1762 __ push(retaddr); |
0 | 1763 |
1764 // and begin the OSR nmethod | |
1765 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
1766 } | |
1767 } | |
1768 } | |
1769 | |
1770 | |
1771 void TemplateTable::if_0cmp(Condition cc) { | |
1772 transition(itos, vtos); | |
1773 // assume branch is more often taken than not (loops use backward branches) | |
1774 Label not_taken; | |
1775 __ testl(rax, rax); | |
1776 __ jcc(j_not(cc), not_taken); | |
1777 branch(false, false); | |
1778 __ bind(not_taken); | |
1779 __ profile_not_taken_branch(rax); | |
1780 } | |
1781 | |
1782 void TemplateTable::if_icmp(Condition cc) { | |
1783 transition(itos, vtos); | |
1784 // assume branch is more often taken than not (loops use backward branches) | |
1785 Label not_taken; | |
1786 __ pop_i(rdx); | |
1787 __ cmpl(rdx, rax); | |
1788 __ jcc(j_not(cc), not_taken); | |
1789 branch(false, false); | |
1790 __ bind(not_taken); | |
1791 __ profile_not_taken_branch(rax); | |
1792 } | |
1793 | |
1794 void TemplateTable::if_nullcmp(Condition cc) { | |
1795 transition(atos, vtos); | |
1796 // assume branch is more often taken than not (loops use backward branches) | |
1797 Label not_taken; | |
304 | 1798 __ testptr(rax, rax); |
0 | 1799 __ jcc(j_not(cc), not_taken); |
1800 branch(false, false); | |
1801 __ bind(not_taken); | |
1802 __ profile_not_taken_branch(rax); | |
1803 } | |
1804 | |
1805 void TemplateTable::if_acmp(Condition cc) { | |
1806 transition(atos, vtos); | |
1807 // assume branch is more often taken than not (loops use backward branches) | |
1808 Label not_taken; | |
1809 __ pop_ptr(rdx); | |
304 | 1810 __ cmpptr(rdx, rax); |
0 | 1811 __ jcc(j_not(cc), not_taken); |
1812 branch(false, false); | |
1813 __ bind(not_taken); | |
1814 __ profile_not_taken_branch(rax); | |
1815 } | |
1816 | |
1817 void TemplateTable::ret() { | |
1818 transition(vtos, vtos); | |
1819 locals_index(rbx); | |
304 | 1820 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
0 | 1821 __ profile_ret(rbx, rcx); |
1822 __ get_method(rax); | |
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1823 __ movptr(r13, Address(rax, Method::const_offset())); |
304 | 1824 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1825 ConstMethod::codes_offset())); |
0 | 1826 __ dispatch_next(vtos); |
1827 } | |
1828 | |
1829 void TemplateTable::wide_ret() { | |
1830 transition(vtos, vtos); | |
1831 locals_index_wide(rbx); | |
304 | 1832 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
0 | 1833 __ profile_ret(rbx, rcx); |
1834 __ get_method(rax); | |
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1835 __ movptr(r13, Address(rax, Method::const_offset())); |
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1836 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
0 | 1837 __ dispatch_next(vtos); |
1838 } | |
1839 | |
1840 void TemplateTable::tableswitch() { | |
1841 Label default_case, continue_execution; | |
1842 transition(itos, vtos); | |
1843 // align r13 | |
304 | 1844 __ lea(rbx, at_bcp(BytesPerInt)); |
1845 __ andptr(rbx, -BytesPerInt); | |
0 | 1846 // load lo & hi |
1847 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1848 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
1849 __ bswapl(rcx); | |
1850 __ bswapl(rdx); | |
1851 // check against lo & hi | |
1852 __ cmpl(rax, rcx); | |
1853 __ jcc(Assembler::less, default_case); | |
1854 __ cmpl(rax, rdx); | |
1855 __ jcc(Assembler::greater, default_case); | |
1856 // lookup dispatch offset | |
1857 __ subl(rax, rcx); | |
1858 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
1859 __ profile_switch_case(rax, rbx, rcx); | |
1860 // continue execution | |
1861 __ bind(continue_execution); | |
1862 __ bswapl(rdx); | |
304 | 1863 __ movl2ptr(rdx, rdx); |
0 | 1864 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1865 __ addptr(r13, rdx); |
0 | 1866 __ dispatch_only(vtos); |
1867 // handle default | |
1868 __ bind(default_case); | |
1869 __ profile_switch_default(rax); | |
1870 __ movl(rdx, Address(rbx, 0)); | |
1871 __ jmp(continue_execution); | |
1872 } | |
1873 | |
1874 void TemplateTable::lookupswitch() { | |
1875 transition(itos, itos); | |
1876 __ stop("lookupswitch bytecode should have been rewritten"); | |
1877 } | |
1878 | |
1879 void TemplateTable::fast_linearswitch() { | |
1880 transition(itos, vtos); | |
1881 Label loop_entry, loop, found, continue_execution; | |
1882 // bswap rax so we can avoid bswapping the table entries | |
1883 __ bswapl(rax); | |
1884 // align r13 | |
304 | 1885 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
1886 // this instruction (change offsets | |
1887 // below) | |
1888 __ andptr(rbx, -BytesPerInt); | |
0 | 1889 // set counter |
1890 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1891 __ bswapl(rcx); | |
1892 __ jmpb(loop_entry); | |
1893 // table search | |
1894 __ bind(loop); | |
1895 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
1896 __ jcc(Assembler::equal, found); | |
1897 __ bind(loop_entry); | |
1898 __ decrementl(rcx); | |
1899 __ jcc(Assembler::greaterEqual, loop); | |
1900 // default case | |
1901 __ profile_switch_default(rax); | |
1902 __ movl(rdx, Address(rbx, 0)); | |
1903 __ jmp(continue_execution); | |
1904 // entry found -> get offset | |
1905 __ bind(found); | |
1906 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
1907 __ profile_switch_case(rcx, rax, rbx); | |
1908 // continue execution | |
1909 __ bind(continue_execution); | |
1910 __ bswapl(rdx); | |
304 | 1911 __ movl2ptr(rdx, rdx); |
0 | 1912 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1913 __ addptr(r13, rdx); |
0 | 1914 __ dispatch_only(vtos); |
1915 } | |
1916 | |
1917 void TemplateTable::fast_binaryswitch() { | |
1918 transition(itos, vtos); | |
1919 // Implementation using the following core algorithm: | |
1920 // | |
1921 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1922 // // Binary search according to "Methodik des Programmierens" by | |
1923 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1924 // int i = 0; | |
1925 // int j = n; | |
1926 // while (i+1 < j) { | |
1927 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1928 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1929 // // where a stands for the array and assuming that the (inexisting) | |
1930 // // element a[n] is infinitely big. | |
1931 // int h = (i + j) >> 1; | |
1932 // // i < h < j | |
1933 // if (key < array[h].fast_match()) { | |
1934 // j = h; | |
1935 // } else { | |
1936 // i = h; | |
1937 // } | |
1938 // } | |
1939 // // R: a[i] <= key < a[i+1] or Q | |
1940 // // (i.e., if key is within array, i is the correct index) | |
1941 // return i; | |
1942 // } | |
1943 | |
1944 // Register allocation | |
1945 const Register key = rax; // already set (tosca) | |
1946 const Register array = rbx; | |
1947 const Register i = rcx; | |
1948 const Register j = rdx; | |
1949 const Register h = rdi; | |
1950 const Register temp = rsi; | |
1951 | |
1952 // Find array start | |
304 | 1953 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
1954 // get rid of this | |
1955 // instruction (change | |
1956 // offsets below) | |
1957 __ andptr(array, -BytesPerInt); | |
0 | 1958 |
1959 // Initialize i & j | |
1960 __ xorl(i, i); // i = 0; | |
1961 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
1962 | |
1963 // Convert j into native byteordering | |
1964 __ bswapl(j); | |
1965 | |
1966 // And start | |
1967 Label entry; | |
1968 __ jmp(entry); | |
1969 | |
1970 // binary search loop | |
1971 { | |
1972 Label loop; | |
1973 __ bind(loop); | |
1974 // int h = (i + j) >> 1; | |
1975 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
1976 __ sarl(h, 1); // h = (i + j) >> 1; | |
1977 // if (key < array[h].fast_match()) { | |
1978 // j = h; | |
1979 // } else { | |
1980 // i = h; | |
1981 // } | |
1982 // Convert array[h].match to native byte-ordering before compare | |
1983 __ movl(temp, Address(array, h, Address::times_8)); | |
1984 __ bswapl(temp); | |
1985 __ cmpl(key, temp); | |
1986 // j = h if (key < array[h].fast_match()) | |
1987 __ cmovl(Assembler::less, j, h); | |
1988 // i = h if (key >= array[h].fast_match()) | |
1989 __ cmovl(Assembler::greaterEqual, i, h); | |
1990 // while (i+1 < j) | |
1991 __ bind(entry); | |
1992 __ leal(h, Address(i, 1)); // i+1 | |
1993 __ cmpl(h, j); // i+1 < j | |
1994 __ jcc(Assembler::less, loop); | |
1995 } | |
1996 | |
1997 // end of binary search, result index is i (must check again!) | |
1998 Label default_case; | |
1999 // Convert array[i].match to native byte-ordering before compare | |
2000 __ movl(temp, Address(array, i, Address::times_8)); | |
2001 __ bswapl(temp); | |
2002 __ cmpl(key, temp); | |
2003 __ jcc(Assembler::notEqual, default_case); | |
2004 | |
2005 // entry found -> j = offset | |
2006 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
2007 __ profile_switch_case(i, key, array); | |
2008 __ bswapl(j); | |
304 | 2009 __ movl2ptr(j, j); |
0 | 2010 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2011 __ addptr(r13, j); |
0 | 2012 __ dispatch_only(vtos); |
2013 | |
2014 // default case -> j = default offset | |
2015 __ bind(default_case); | |
2016 __ profile_switch_default(i); | |
2017 __ movl(j, Address(array, -2 * BytesPerInt)); | |
2018 __ bswapl(j); | |
304 | 2019 __ movl2ptr(j, j); |
0 | 2020 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2021 __ addptr(r13, j); |
0 | 2022 __ dispatch_only(vtos); |
2023 } | |
2024 | |
2025 | |
2026 void TemplateTable::_return(TosState state) { | |
2027 transition(state, state); | |
2028 assert(_desc->calls_vm(), | |
2029 "inconsistent calls_vm information"); // call in remove_activation | |
2030 | |
2031 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2032 assert(state == vtos, "only valid state"); | |
304 | 2033 __ movptr(c_rarg1, aaddress(0)); |
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2034 __ load_klass(rdi, c_rarg1); |
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2035 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
0 | 2036 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
2037 Label skip_register_finalizer; | |
2038 __ jcc(Assembler::zero, skip_register_finalizer); | |
2039 | |
2040 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
2041 | |
2042 __ bind(skip_register_finalizer); | |
2043 } | |
2044 | |
2045 __ remove_activation(state, r13); | |
2046 __ jmp(r13); | |
2047 } | |
2048 | |
2049 // ---------------------------------------------------------------------------- | |
2050 // Volatile variables demand their effects be made known to all CPU's | |
2051 // in order. Store buffers on most chips allow reads & writes to | |
2052 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
2053 // without some kind of memory barrier (i.e., it's not sufficient that | |
2054 // the interpreter does not reorder volatile references, the hardware | |
2055 // also must not reorder them). | |
2056 // | |
2057 // According to the new Java Memory Model (JMM): | |
2058 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
2059 // writes act as aquire & release, so: | |
2060 // (2) A read cannot let unrelated NON-volatile memory refs that | |
2061 // happen after the read float up to before the read. It's OK for | |
2062 // non-volatile memory refs that happen before the volatile read to | |
2063 // float down below it. | |
2064 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
2065 // memory refs that happen BEFORE the write float down to after the | |
2066 // write. It's OK for non-volatile memory refs that happen after the | |
2067 // volatile write to float up before it. | |
2068 // | |
2069 // We only put in barriers around volatile refs (they are expensive), | |
2070 // not _between_ memory refs (that would require us to track the | |
2071 // flavor of the previous memory refs). Requirements (2) and (3) | |
2072 // require some barriers before volatile stores and after volatile | |
2073 // loads. These nearly cover requirement (1) but miss the | |
2074 // volatile-store-volatile-load case. This final case is placed after | |
2075 // volatile-stores although it could just as well go before | |
2076 // volatile-loads. | |
2077 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
2078 order_constraint) { | |
2079 // Helper function to insert a is-volatile test and memory barrier | |
2080 if (os::is_MP()) { // Not needed on single CPU | |
2081 __ membar(order_constraint); | |
2082 } | |
2083 } | |
2084 | |
1565 | 2085 void TemplateTable::resolve_cache_and_index(int byte_no, |
2086 Register Rcache, | |
2087 Register index, | |
2088 size_t index_size) { | |
0 | 2089 const Register temp = rbx; |
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2090 assert_different_registers(Rcache, index, temp); |
1565 | 2091 |
0 | 2092 Label resolved; |
1565 | 2093 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2094 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2095 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
1108 | 2096 __ jcc(Assembler::equal, resolved); |
0 | 2097 |
2098 // resolve first time through | |
2099 address entry; | |
2100 switch (bytecode()) { | |
2101 case Bytecodes::_getstatic: | |
2102 case Bytecodes::_putstatic: | |
2103 case Bytecodes::_getfield: | |
2104 case Bytecodes::_putfield: | |
2105 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
2106 break; | |
2107 case Bytecodes::_invokevirtual: | |
2108 case Bytecodes::_invokespecial: | |
2109 case Bytecodes::_invokestatic: | |
2110 case Bytecodes::_invokeinterface: | |
2111 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
2112 break; | |
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2113 case Bytecodes::_invokehandle: |
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2114 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2115 break; |
1108 | 2116 case Bytecodes::_invokedynamic: |
2117 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
2118 break; | |
0 | 2119 default: |
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2120 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
0 | 2121 break; |
2122 } | |
2123 __ movl(temp, (int) bytecode()); | |
2124 __ call_VM(noreg, entry, temp); | |
2125 | |
2126 // Update registers with resolved info | |
1565 | 2127 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2128 __ bind(resolved); |
2129 } | |
2130 | |
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2131 // The cache and index registers must be set before call |
0 | 2132 void TemplateTable::load_field_cp_cache_entry(Register obj, |
2133 Register cache, | |
2134 Register index, | |
2135 Register off, | |
2136 Register flags, | |
2137 bool is_static = false) { | |
2138 assert_different_registers(cache, index, flags, off); | |
2139 | |
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2140 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2141 // Field offset |
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2142 __ movptr(off, Address(cache, index, Address::times_ptr, |
304 | 2143 in_bytes(cp_base_offset + |
2144 ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2145 // Flags |
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2146 __ movl(flags, Address(cache, index, Address::times_ptr, |
0 | 2147 in_bytes(cp_base_offset + |
2148 ConstantPoolCacheEntry::flags_offset()))); | |
2149 | |
2150 // klass overwrite register | |
2151 if (is_static) { | |
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2152 __ movptr(obj, Address(cache, index, Address::times_ptr, |
304 | 2153 in_bytes(cp_base_offset + |
2154 ConstantPoolCacheEntry::f1_offset()))); | |
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2155 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2156 __ movptr(obj, Address(obj, mirror_offset)); |
0 | 2157 } |
2158 } | |
2159 | |
2160 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
2161 Register method, | |
2162 Register itable_index, | |
2163 Register flags, | |
2164 bool is_invokevirtual, | |
1565 | 2165 bool is_invokevfinal, /*unused*/ |
2166 bool is_invokedynamic) { | |
0 | 2167 // setup registers |
2168 const Register cache = rcx; | |
2169 const Register index = rdx; | |
2170 assert_different_registers(method, flags); | |
2171 assert_different_registers(method, cache, index); | |
2172 assert_different_registers(itable_index, flags); | |
2173 assert_different_registers(itable_index, cache, index); | |
2174 // determine constant pool cache field offsets | |
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2175 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2176 const int method_offset = in_bytes( |
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2177 ConstantPoolCache::base_offset() + |
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2178 ((byte_no == f2_byte) |
0 | 2179 ? ConstantPoolCacheEntry::f2_offset() |
2180 : ConstantPoolCacheEntry::f1_offset())); | |
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2181 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2182 ConstantPoolCacheEntry::flags_offset()); |
2183 // access constant pool cache fields | |
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2184 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2185 ConstantPoolCacheEntry::f2_offset()); |
2186 | |
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2187 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2188 resolve_cache_and_index(byte_no, cache, index, index_size); |
1565 | 2189 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2190 |
0 | 2191 if (itable_index != noreg) { |
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2192 // pick up itable or appendix index from f2 also: |
1565 | 2193 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
0 | 2194 } |
1565 | 2195 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
0 | 2196 } |
2197 | |
2198 // Correct values of the cache and index registers are preserved. | |
2199 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
2200 bool is_static, bool has_tos) { | |
2201 // do the JVMTI work here to avoid disturbing the register state below | |
2202 // We use c_rarg registers here because we want to use the register used in | |
2203 // the call to the VM | |
2204 if (JvmtiExport::can_post_field_access()) { | |
2205 // Check to see if a field access watch has been set before we | |
2206 // take the time to call into the VM. | |
2207 Label L1; | |
2208 assert_different_registers(cache, index, rax); | |
2209 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2210 __ testl(rax, rax); | |
2211 __ jcc(Assembler::zero, L1); | |
2212 | |
2213 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
2214 | |
2215 // cache entry pointer | |
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2216 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
0 | 2217 __ shll(c_rarg3, LogBytesPerWord); |
304 | 2218 __ addptr(c_rarg2, c_rarg3); |
0 | 2219 if (is_static) { |
2220 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
2221 } else { | |
304 | 2222 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
0 | 2223 __ verify_oop(c_rarg1); |
2224 } | |
2225 // c_rarg1: object pointer or NULL | |
2226 // c_rarg2: cache entry pointer | |
2227 // c_rarg3: jvalue object on the stack | |
2228 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
2229 InterpreterRuntime::post_field_access), | |
2230 c_rarg1, c_rarg2, c_rarg3); | |
2231 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2232 __ bind(L1); | |
2233 } | |
2234 } | |
2235 | |
2236 void TemplateTable::pop_and_check_object(Register r) { | |
2237 __ pop_ptr(r); | |
2238 __ null_check(r); // for field access must check obj. | |
2239 __ verify_oop(r); | |
2240 } | |
2241 | |
2242 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2243 transition(vtos, vtos); | |
2244 | |
2245 const Register cache = rcx; | |
2246 const Register index = rdx; | |
2247 const Register obj = c_rarg3; | |
2248 const Register off = rbx; | |
2249 const Register flags = rax; | |
2250 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
2251 | |
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2252 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2253 jvmti_post_field_access(cache, index, is_static, false); |
2254 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2255 | |
2256 if (!is_static) { | |
2257 // obj is on the stack | |
2258 pop_and_check_object(obj); | |
2259 } | |
2260 | |
2261 const Address field(obj, off, Address::times_1); | |
2262 | |
2263 Label Done, notByte, notInt, notShort, notChar, | |
2264 notLong, notFloat, notObj, notDouble; | |
2265 | |
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2266 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2267 // Make sure we don't need to mask edx after the above shift |
0 | 2268 assert(btos == 0, "change code, btos != 0"); |
2269 | |
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2270 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2271 __ jcc(Assembler::notZero, notByte); |
2272 // btos | |
2273 __ load_signed_byte(rax, field); | |
2274 __ push(btos); | |
2275 // Rewrite bytecode to be faster | |
2276 if (!is_static) { | |
2277 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
2278 } | |
2279 __ jmp(Done); | |
2280 | |
2281 __ bind(notByte); | |
2282 __ cmpl(flags, atos); | |
2283 __ jcc(Assembler::notEqual, notObj); | |
2284 // atos | |
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2285 __ load_heap_oop(rax, field); |
0 | 2286 __ push(atos); |
2287 if (!is_static) { | |
2288 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
2289 } | |
2290 __ jmp(Done); | |
2291 | |
2292 __ bind(notObj); | |
2293 __ cmpl(flags, itos); | |
2294 __ jcc(Assembler::notEqual, notInt); | |
2295 // itos | |
2296 __ movl(rax, field); | |
2297 __ push(itos); | |
2298 // Rewrite bytecode to be faster | |
2299 if (!is_static) { | |
2300 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
2301 } | |
2302 __ jmp(Done); | |
2303 | |
2304 __ bind(notInt); | |
2305 __ cmpl(flags, ctos); | |
2306 __ jcc(Assembler::notEqual, notChar); | |
2307 // ctos | |
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2308 __ load_unsigned_short(rax, field); |
0 | 2309 __ push(ctos); |
2310 // Rewrite bytecode to be faster | |
2311 if (!is_static) { | |
2312 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
2313 } | |
2314 __ jmp(Done); | |
2315 | |
2316 __ bind(notChar); | |
2317 __ cmpl(flags, stos); | |
2318 __ jcc(Assembler::notEqual, notShort); | |
2319 // stos | |
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2320 __ load_signed_short(rax, field); |
0 | 2321 __ push(stos); |
2322 // Rewrite bytecode to be faster | |
2323 if (!is_static) { | |
2324 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
2325 } | |
2326 __ jmp(Done); | |
2327 | |
2328 __ bind(notShort); | |
2329 __ cmpl(flags, ltos); | |
2330 __ jcc(Assembler::notEqual, notLong); | |
2331 // ltos | |
2332 __ movq(rax, field); | |
2333 __ push(ltos); | |
2334 // Rewrite bytecode to be faster | |
2335 if (!is_static) { | |
2336 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
2337 } | |
2338 __ jmp(Done); | |
2339 | |
2340 __ bind(notLong); | |
2341 __ cmpl(flags, ftos); | |
2342 __ jcc(Assembler::notEqual, notFloat); | |
2343 // ftos | |
2344 __ movflt(xmm0, field); | |
2345 __ push(ftos); | |
2346 // Rewrite bytecode to be faster | |
2347 if (!is_static) { | |
2348 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
2349 } | |
2350 __ jmp(Done); | |
2351 | |
2352 __ bind(notFloat); | |
2353 #ifdef ASSERT | |
2354 __ cmpl(flags, dtos); | |
2355 __ jcc(Assembler::notEqual, notDouble); | |
2356 #endif | |
2357 // dtos | |
2358 __ movdbl(xmm0, field); | |
2359 __ push(dtos); | |
2360 // Rewrite bytecode to be faster | |
2361 if (!is_static) { | |
2362 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
2363 } | |
2364 #ifdef ASSERT | |
2365 __ jmp(Done); | |
2366 | |
2367 __ bind(notDouble); | |
2368 __ stop("Bad state"); | |
2369 #endif | |
2370 | |
2371 __ bind(Done); | |
2372 // [jk] not needed currently | |
2373 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
2374 // Assembler::LoadStore)); | |
2375 } | |
2376 | |
2377 | |
2378 void TemplateTable::getfield(int byte_no) { | |
2379 getfield_or_static(byte_no, false); | |
2380 } | |
2381 | |
2382 void TemplateTable::getstatic(int byte_no) { | |
2383 getfield_or_static(byte_no, true); | |
2384 } | |
2385 | |
2386 // The registers cache and index expected to be set before call. | |
2387 // The function may destroy various registers, just not the cache and index registers. | |
2388 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
2389 transition(vtos, vtos); | |
2390 | |
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2391 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2392 |
2393 if (JvmtiExport::can_post_field_modification()) { | |
2394 // Check to see if a field modification watch has been set before | |
2395 // we take the time to call into the VM. | |
2396 Label L1; | |
2397 assert_different_registers(cache, index, rax); | |
2398 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2399 __ testl(rax, rax); | |
2400 __ jcc(Assembler::zero, L1); | |
2401 | |
2402 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
2403 | |
2404 if (is_static) { | |
2405 // Life is simple. Null out the object pointer. | |
2406 __ xorl(c_rarg1, c_rarg1); | |
2407 } else { | |
2408 // Life is harder. The stack holds the value on top, followed by | |
2409 // the object. We don't know the size of the value, though; it | |
2410 // could be one or two words depending on its type. As a result, | |
2411 // we must find the type to determine where the object is. | |
2412 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
2413 Address::times_8, | |
2414 in_bytes(cp_base_offset + | |
2415 ConstantPoolCacheEntry::flags_offset()))); | |
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2416 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2417 // Make sure we don't need to mask rcx after the above shift |
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2418 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 2419 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
0 | 2420 __ cmpl(c_rarg3, ltos); |
304 | 2421 __ cmovptr(Assembler::equal, |
2422 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
0 | 2423 __ cmpl(c_rarg3, dtos); |
304 | 2424 __ cmovptr(Assembler::equal, |
2425 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
0 | 2426 } |
2427 // cache entry pointer | |
304 | 2428 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
0 | 2429 __ shll(rscratch1, LogBytesPerWord); |
304 | 2430 __ addptr(c_rarg2, rscratch1); |
0 | 2431 // object (tos) |
304 | 2432 __ mov(c_rarg3, rsp); |
0 | 2433 // c_rarg1: object pointer set up above (NULL if static) |
2434 // c_rarg2: cache entry pointer | |
2435 // c_rarg3: jvalue object on the stack | |
2436 __ call_VM(noreg, | |
2437 CAST_FROM_FN_PTR(address, | |
2438 InterpreterRuntime::post_field_modification), | |
2439 c_rarg1, c_rarg2, c_rarg3); | |
2440 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2441 __ bind(L1); | |
2442 } | |
2443 } | |
2444 | |
2445 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2446 transition(vtos, vtos); | |
2447 | |
2448 const Register cache = rcx; | |
2449 const Register index = rdx; | |
2450 const Register obj = rcx; | |
2451 const Register off = rbx; | |
2452 const Register flags = rax; | |
2453 const Register bc = c_rarg3; | |
2454 | |
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2455 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2456 jvmti_post_field_mod(cache, index, is_static); |
2457 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2458 | |
2459 // [jk] not needed currently | |
2460 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2461 // Assembler::StoreStore)); | |
2462 | |
2463 Label notVolatile, Done; | |
2464 __ movl(rdx, flags); | |
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2465 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2466 __ andl(rdx, 0x1); |
2467 | |
2468 // field address | |
2469 const Address field(obj, off, Address::times_1); | |
2470 | |
2471 Label notByte, notInt, notShort, notChar, | |
2472 notLong, notFloat, notObj, notDouble; | |
2473 | |
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2474 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
0 | 2475 |
2476 assert(btos == 0, "change code, btos != 0"); | |
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2477 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2478 __ jcc(Assembler::notZero, notByte); |
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2479 |
0 | 2480 // btos |
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2481 { |
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2482 __ pop(btos); |
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2483 if (!is_static) pop_and_check_object(obj); |
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2484 __ movb(field, rax); |
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2485 if (!is_static) { |
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2486 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2487 } |
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2488 __ jmp(Done); |
0 | 2489 } |
2490 | |
2491 __ bind(notByte); | |
2492 __ cmpl(flags, atos); | |
2493 __ jcc(Assembler::notEqual, notObj); | |
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2494 |
0 | 2495 // atos |
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2496 { |
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2497 __ pop(atos); |
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2498 if (!is_static) pop_and_check_object(obj); |
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2499 // Store into the field |
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2500 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2501 if (!is_static) { |
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2502 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2503 } |
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2504 __ jmp(Done); |
0 | 2505 } |
2506 | |
2507 __ bind(notObj); | |
2508 __ cmpl(flags, itos); | |
2509 __ jcc(Assembler::notEqual, notInt); | |
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2510 |
0 | 2511 // itos |
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2512 { |
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2513 __ pop(itos); |
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2514 if (!is_static) pop_and_check_object(obj); |
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2515 __ movl(field, rax); |
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2516 if (!is_static) { |
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2517 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2518 } |
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2519 __ jmp(Done); |
0 | 2520 } |
2521 | |
2522 __ bind(notInt); | |
2523 __ cmpl(flags, ctos); | |
2524 __ jcc(Assembler::notEqual, notChar); | |
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2525 |
0 | 2526 // ctos |
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2527 { |
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2528 __ pop(ctos); |
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2529 if (!is_static) pop_and_check_object(obj); |
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2530 __ movw(field, rax); |
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2531 if (!is_static) { |
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2532 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2533 } |
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2534 __ jmp(Done); |
0 | 2535 } |
2536 | |
2537 __ bind(notChar); | |
2538 __ cmpl(flags, stos); | |
2539 __ jcc(Assembler::notEqual, notShort); | |
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2540 |
0 | 2541 // stos |
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2542 { |
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2543 __ pop(stos); |
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2544 if (!is_static) pop_and_check_object(obj); |
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2545 __ movw(field, rax); |
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2546 if (!is_static) { |
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2547 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
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2548 } |
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2549 __ jmp(Done); |
0 | 2550 } |
2551 | |
2552 __ bind(notShort); | |
2553 __ cmpl(flags, ltos); | |
2554 __ jcc(Assembler::notEqual, notLong); | |
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2555 |
0 | 2556 // ltos |
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2557 { |
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2558 __ pop(ltos); |
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2559 if (!is_static) pop_and_check_object(obj); |
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2560 __ movq(field, rax); |
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2561 if (!is_static) { |
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2562 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
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2563 } |
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2564 __ jmp(Done); |
0 | 2565 } |
2566 | |
2567 __ bind(notLong); | |
2568 __ cmpl(flags, ftos); | |
2569 __ jcc(Assembler::notEqual, notFloat); | |
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2570 |
0 | 2571 // ftos |
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2572 { |
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2573 __ pop(ftos); |
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2574 if (!is_static) pop_and_check_object(obj); |
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2575 __ movflt(field, xmm0); |
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2576 if (!is_static) { |
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2577 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
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2578 } |
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2579 __ jmp(Done); |
0 | 2580 } |
2581 | |
2582 __ bind(notFloat); | |
2583 #ifdef ASSERT | |
2584 __ cmpl(flags, dtos); | |
2585 __ jcc(Assembler::notEqual, notDouble); | |
2586 #endif | |
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2587 |
0 | 2588 // dtos |
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2589 { |
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2590 __ pop(dtos); |
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2591 if (!is_static) pop_and_check_object(obj); |
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2592 __ movdbl(field, xmm0); |
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2593 if (!is_static) { |
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2594 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
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2595 } |
0 | 2596 } |
2597 | |
2598 #ifdef ASSERT | |
2599 __ jmp(Done); | |
2600 | |
2601 __ bind(notDouble); | |
2602 __ stop("Bad state"); | |
2603 #endif | |
2604 | |
2605 __ bind(Done); | |
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2606 |
0 | 2607 // Check for volatile store |
2608 __ testl(rdx, rdx); | |
2609 __ jcc(Assembler::zero, notVolatile); | |
2610 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2611 Assembler::StoreStore)); | |
2612 __ bind(notVolatile); | |
2613 } | |
2614 | |
2615 void TemplateTable::putfield(int byte_no) { | |
2616 putfield_or_static(byte_no, false); | |
2617 } | |
2618 | |
2619 void TemplateTable::putstatic(int byte_no) { | |
2620 putfield_or_static(byte_no, true); | |
2621 } | |
2622 | |
2623 void TemplateTable::jvmti_post_fast_field_mod() { | |
2624 if (JvmtiExport::can_post_field_modification()) { | |
2625 // Check to see if a field modification watch has been set before | |
2626 // we take the time to call into the VM. | |
2627 Label L2; | |
2628 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2629 __ testl(c_rarg3, c_rarg3); | |
2630 __ jcc(Assembler::zero, L2); | |
2631 __ pop_ptr(rbx); // copy the object pointer from tos | |
2632 __ verify_oop(rbx); | |
2633 __ push_ptr(rbx); // put the object pointer back on tos | |
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2634 // Save tos values before call_VM() clobbers them. Since we have |
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2635 // to do it for every data type, we use the saved values as the |
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2636 // jvalue object. |
0 | 2637 switch (bytecode()) { // load values into the jvalue object |
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2638 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
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2639 case Bytecodes::_fast_bputfield: // fall through |
0 | 2640 case Bytecodes::_fast_sputfield: // fall through |
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2641 case Bytecodes::_fast_cputfield: // fall through |
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2642 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
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2643 case Bytecodes::_fast_dputfield: __ push_d(); break; |
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2644 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2645 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
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2646 |
0 | 2647 default: |
2648 ShouldNotReachHere(); | |
2649 } | |
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2650 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
0 | 2651 // access constant pool cache entry |
2652 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
2653 __ verify_oop(rbx); | |
2654 // rbx: object pointer copied above | |
2655 // c_rarg2: cache entry pointer | |
2656 // c_rarg3: jvalue object on the stack | |
2657 __ call_VM(noreg, | |
2658 CAST_FROM_FN_PTR(address, | |
2659 InterpreterRuntime::post_field_modification), | |
2660 rbx, c_rarg2, c_rarg3); | |
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2661 |
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2662 switch (bytecode()) { // restore tos values |
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2663 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
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2664 case Bytecodes::_fast_bputfield: // fall through |
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2665 case Bytecodes::_fast_sputfield: // fall through |
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2666 case Bytecodes::_fast_cputfield: // fall through |
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2667 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
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2668 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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2669 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2670 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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2671 } |
0 | 2672 __ bind(L2); |
2673 } | |
2674 } | |
2675 | |
2676 void TemplateTable::fast_storefield(TosState state) { | |
2677 transition(state, vtos); | |
2678 | |
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2679 ByteSize base = ConstantPoolCache::base_offset(); |
0 | 2680 |
2681 jvmti_post_fast_field_mod(); | |
2682 | |
2683 // access constant pool cache | |
2684 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2685 | |
2686 // test for volatile with rdx | |
2687 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
2688 in_bytes(base + | |
2689 ConstantPoolCacheEntry::flags_offset()))); | |
2690 | |
2691 // replace index with field offset from cache entry | |
304 | 2692 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
2693 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2694 |
2695 // [jk] not needed currently | |
2696 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2697 // Assembler::StoreStore)); | |
2698 | |
2699 Label notVolatile; | |
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2700 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2701 __ andl(rdx, 0x1); |
2702 | |
2703 // Get object from stack | |
2704 pop_and_check_object(rcx); | |
2705 | |
2706 // field address | |
2707 const Address field(rcx, rbx, Address::times_1); | |
2708 | |
2709 // access field | |
2710 switch (bytecode()) { | |
2711 case Bytecodes::_fast_aputfield: | |
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2712 do_oop_store(_masm, field, rax, _bs->kind(), false); |
0 | 2713 break; |
2714 case Bytecodes::_fast_lputfield: | |
2715 __ movq(field, rax); | |
2716 break; | |
2717 case Bytecodes::_fast_iputfield: | |
2718 __ movl(field, rax); | |
2719 break; | |
2720 case Bytecodes::_fast_bputfield: | |
2721 __ movb(field, rax); | |
2722 break; | |
2723 case Bytecodes::_fast_sputfield: | |
2724 // fall through | |
2725 case Bytecodes::_fast_cputfield: | |
2726 __ movw(field, rax); | |
2727 break; | |
2728 case Bytecodes::_fast_fputfield: | |
2729 __ movflt(field, xmm0); | |
2730 break; | |
2731 case Bytecodes::_fast_dputfield: | |
2732 __ movdbl(field, xmm0); | |
2733 break; | |
2734 default: | |
2735 ShouldNotReachHere(); | |
2736 } | |
2737 | |
2738 // Check for volatile store | |
2739 __ testl(rdx, rdx); | |
2740 __ jcc(Assembler::zero, notVolatile); | |
2741 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2742 Assembler::StoreStore)); | |
2743 __ bind(notVolatile); | |
2744 } | |
2745 | |
2746 | |
2747 void TemplateTable::fast_accessfield(TosState state) { | |
2748 transition(atos, state); | |
2749 | |
2750 // Do the JVMTI work here to avoid disturbing the register state below | |
2751 if (JvmtiExport::can_post_field_access()) { | |
2752 // Check to see if a field access watch has been set before we | |
2753 // take the time to call into the VM. | |
2754 Label L1; | |
2755 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2756 __ testl(rcx, rcx); | |
2757 __ jcc(Assembler::zero, L1); | |
2758 // access constant pool cache entry | |
2759 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
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2760 __ verify_oop(rax); |
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2761 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
304 | 2762 __ mov(c_rarg1, rax); |
0 | 2763 // c_rarg1: object pointer copied above |
2764 // c_rarg2: cache entry pointer | |
2765 __ call_VM(noreg, | |
2766 CAST_FROM_FN_PTR(address, | |
2767 InterpreterRuntime::post_field_access), | |
2768 c_rarg1, c_rarg2); | |
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2769 __ pop_ptr(rax); // restore object pointer |
0 | 2770 __ bind(L1); |
2771 } | |
2772 | |
2773 // access constant pool cache | |
2774 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2775 // replace index with field offset from cache entry | |
2776 // [jk] not needed currently | |
2777 // if (os::is_MP()) { | |
2778 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
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2779 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2780 // ConstantPoolCacheEntry::flags_offset()))); |
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2781 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2782 // __ andl(rdx, 0x1); |
2783 // } | |
304 | 2784 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
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2785 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2786 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2787 |
2788 // rax: object | |
2789 __ verify_oop(rax); | |
2790 __ null_check(rax); | |
2791 Address field(rax, rbx, Address::times_1); | |
2792 | |
2793 // access field | |
2794 switch (bytecode()) { | |
2795 case Bytecodes::_fast_agetfield: | |
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2796 __ load_heap_oop(rax, field); |
0 | 2797 __ verify_oop(rax); |
2798 break; | |
2799 case Bytecodes::_fast_lgetfield: | |
2800 __ movq(rax, field); | |
2801 break; | |
2802 case Bytecodes::_fast_igetfield: | |
2803 __ movl(rax, field); | |
2804 break; | |
2805 case Bytecodes::_fast_bgetfield: | |
2806 __ movsbl(rax, field); | |
2807 break; | |
2808 case Bytecodes::_fast_sgetfield: | |
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2809 __ load_signed_short(rax, field); |
0 | 2810 break; |
2811 case Bytecodes::_fast_cgetfield: | |
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2812 __ load_unsigned_short(rax, field); |
0 | 2813 break; |
2814 case Bytecodes::_fast_fgetfield: | |
2815 __ movflt(xmm0, field); | |
2816 break; | |
2817 case Bytecodes::_fast_dgetfield: | |
2818 __ movdbl(xmm0, field); | |
2819 break; | |
2820 default: | |
2821 ShouldNotReachHere(); | |
2822 } | |
2823 // [jk] not needed currently | |
2824 // if (os::is_MP()) { | |
2825 // Label notVolatile; | |
2826 // __ testl(rdx, rdx); | |
2827 // __ jcc(Assembler::zero, notVolatile); | |
2828 // __ membar(Assembler::LoadLoad); | |
2829 // __ bind(notVolatile); | |
2830 //}; | |
2831 } | |
2832 | |
2833 void TemplateTable::fast_xaccess(TosState state) { | |
2834 transition(vtos, state); | |
2835 | |
2836 // get receiver | |
304 | 2837 __ movptr(rax, aaddress(0)); |
0 | 2838 // access constant pool cache |
2839 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
304 | 2840 __ movptr(rbx, |
2841 Address(rcx, rdx, Address::times_8, | |
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2842 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2843 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2844 // make sure exception is reported in correct bcp range (getfield is |
2845 // next instruction) | |
304 | 2846 __ increment(r13); |
0 | 2847 __ null_check(rax); |
2848 switch (state) { | |
2849 case itos: | |
2850 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
2851 break; | |
2852 case atos: | |
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2853 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
0 | 2854 __ verify_oop(rax); |
2855 break; | |
2856 case ftos: | |
2857 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
2858 break; | |
2859 default: | |
2860 ShouldNotReachHere(); | |
2861 } | |
2862 | |
2863 // [jk] not needed currently | |
2864 // if (os::is_MP()) { | |
2865 // Label notVolatile; | |
2866 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
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2867 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2868 // ConstantPoolCacheEntry::flags_offset()))); |
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2869 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2870 // __ testl(rdx, 0x1); |
2871 // __ jcc(Assembler::zero, notVolatile); | |
2872 // __ membar(Assembler::LoadLoad); | |
2873 // __ bind(notVolatile); | |
2874 // } | |
2875 | |
304 | 2876 __ decrement(r13); |
0 | 2877 } |
2878 | |
2879 | |
2880 | |
2881 //----------------------------------------------------------------------------- | |
2882 // Calls | |
2883 | |
2884 void TemplateTable::count_calls(Register method, Register temp) { | |
2885 // implemented elsewhere | |
2886 ShouldNotReachHere(); | |
2887 } | |
2888 | |
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2889 void TemplateTable::prepare_invoke(int byte_no, |
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2890 Register method, // linked method (or i-klass) |
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2891 Register index, // itable index, MethodType, etc. |
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2892 Register recv, // if caller wants to see it |
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2893 Register flags // if caller wants to test it |
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2894 ) { |
0 | 2895 // determine flags |
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2896 const Bytecodes::Code code = bytecode(); |
0 | 2897 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
1108 | 2898 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2899 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
0 | 2900 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
2901 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
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2902 const bool load_receiver = (recv != noreg); |
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2903 const bool save_flags = (flags != noreg); |
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2904 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2905 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
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2906 assert(flags == noreg || flags == rdx, ""); |
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2907 assert(recv == noreg || recv == rcx, ""); |
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2908 |
0 | 2909 // setup registers & access constant pool cache |
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2910 if (recv == noreg) recv = rcx; |
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2911 if (flags == noreg) flags = rdx; |
0 | 2912 assert_different_registers(method, index, recv, flags); |
2913 | |
2914 // save 'interpreter return address' | |
2915 __ save_bcp(); | |
2916 | |
1565 | 2917 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
0 | 2918 |
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2919 // maybe push appendix to arguments (just before return address) |
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2920 if (is_invokedynamic || is_invokehandle) { |
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2921 Label L_no_push; |
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2922 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
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2923 __ jcc(Assembler::zero, L_no_push); |
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2924 // Push the appendix as a trailing parameter. |
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2925 // This must be done before we get the receiver, |
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2926 // since the parameter_size includes it. |
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2927 __ push(rbx); |
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2928 __ mov(rbx, index); |
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2929 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2930 __ load_resolved_reference_at_index(index, rbx); |
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2931 __ pop(rbx); |
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2932 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2933 __ bind(L_no_push); |
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2934 } |
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2935 |
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2936 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2937 // Note: no return address pushed yet |
0 | 2938 if (load_receiver) { |
2939 __ movl(recv, flags); | |
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2940 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2941 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2942 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2943 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
1304 | 2944 __ movptr(recv, recv_addr); |
2945 __ verify_oop(recv); | |
0 | 2946 } |
2947 | |
2948 if (save_flags) { | |
2949 __ movl(r13, flags); | |
2950 } | |
2951 | |
2952 // compute return type | |
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2953 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2954 // Make sure we don't need to mask flags after the above shift |
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2955 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2956 // load return address |
2957 { | |
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2958 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2959 (address)Interpreter::return_5_addrs_by_index_table() : |
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2960 (address)Interpreter::return_3_addrs_by_index_table(); |
1108 | 2961 ExternalAddress table(table_addr); |
2962 __ lea(rscratch1, table); | |
2963 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
0 | 2964 } |
2965 | |
2966 // push return address | |
304 | 2967 __ push(flags); |
0 | 2968 |
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2969 // Restore flags value from the constant pool cache, and restore rsi |
0 | 2970 // for later null checks. r13 is the bytecode pointer |
2971 if (save_flags) { | |
2972 __ movl(flags, r13); | |
2973 __ restore_bcp(); | |
2974 } | |
2975 } | |
2976 | |
2977 | |
2978 void TemplateTable::invokevirtual_helper(Register index, | |
2979 Register recv, | |
2980 Register flags) { | |
1783 | 2981 // Uses temporary registers rax, rdx |
2982 assert_different_registers(index, recv, rax, rdx); | |
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2983 assert(index == rbx, ""); |
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2984 assert(recv == rcx, ""); |
0 | 2985 |
2986 // Test for an invoke of a final method | |
2987 Label notFinal; | |
2988 __ movl(rax, flags); | |
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2989 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
0 | 2990 __ jcc(Assembler::zero, notFinal); |
2991 | |
2992 const Register method = index; // method must be rbx | |
2993 assert(method == rbx, | |
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2994 "Method* must be rbx for interpreter calling convention"); |
0 | 2995 |
2996 // do the call - the index is actually the method to call | |
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2997 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
0 | 2998 |
2999 // It's final, need a null check here! | |
3000 __ null_check(recv); | |
3001 | |
3002 // profile this call | |
3003 __ profile_final_call(rax); | |
3004 | |
3005 __ jump_from_interpreted(method, rax); | |
3006 | |
3007 __ bind(notFinal); | |
3008 | |
3009 // get receiver klass | |
3010 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
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3011 __ load_klass(rax, recv); |
0 | 3012 |
3013 // profile this call | |
3014 __ profile_virtual_call(rax, r14, rdx); | |
3015 | |
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3016 // get target Method* & entry point |
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3017 __ lookup_virtual_method(rax, index, method); |
0 | 3018 __ jump_from_interpreted(method, rdx); |
3019 } | |
3020 | |
3021 | |
3022 void TemplateTable::invokevirtual(int byte_no) { | |
3023 transition(vtos, vtos); | |
1565 | 3024 assert(byte_no == f2_byte, "use this argument"); |
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|
3025 prepare_invoke(byte_no, |
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|
3026 rbx, // method or vtable index |
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|
3027 noreg, // unused itable index |
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|
3028 rcx, rdx); // recv, flags |
0 | 3029 |
3030 // rbx: index | |
3031 // rcx: receiver | |
3032 // rdx: flags | |
3033 | |
3034 invokevirtual_helper(rbx, rcx, rdx); | |
3035 } | |
3036 | |
3037 | |
3038 void TemplateTable::invokespecial(int byte_no) { | |
3039 transition(vtos, vtos); | |
1565 | 3040 assert(byte_no == f1_byte, "use this argument"); |
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3041 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
6266
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|
3042 rcx); // get receiver also for null check |
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|
3043 __ verify_oop(rcx); |
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diff
changeset
|
3044 __ null_check(rcx); |
0 | 3045 // do the call |
3046 __ profile_call(rax); | |
3047 __ jump_from_interpreted(rbx, rax); | |
3048 } | |
3049 | |
3050 | |
3051 void TemplateTable::invokestatic(int byte_no) { | |
3052 transition(vtos, vtos); | |
1565 | 3053 assert(byte_no == f1_byte, "use this argument"); |
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|
3054 prepare_invoke(byte_no, rbx); // get f1 Method* |
0 | 3055 // do the call |
3056 __ profile_call(rax); | |
3057 __ jump_from_interpreted(rbx, rax); | |
3058 } | |
3059 | |
3060 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3061 transition(vtos, vtos); | |
1565 | 3062 assert(byte_no == f2_byte, "use this argument"); |
0 | 3063 __ stop("fast_invokevfinal not used on amd64"); |
3064 } | |
3065 | |
3066 void TemplateTable::invokeinterface(int byte_no) { | |
3067 transition(vtos, vtos); | |
1565 | 3068 assert(byte_no == f1_byte, "use this argument"); |
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|
3069 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
6266
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|
3070 rcx, rdx); // recv, flags |
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|
3071 |
1d7922586cf6
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|
3072 // rax: interface klass (from f1) |
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|
3073 // rbx: itable index (from f2) |
0 | 3074 // rcx: receiver |
3075 // rdx: flags | |
3076 | |
3077 // Special case of invokeinterface called for virtual method of | |
3078 // java.lang.Object. See cpCacheOop.cpp for details. | |
3079 // This code isn't produced by javac, but could be produced by | |
3080 // another compliant java compiler. | |
3081 Label notMethod; | |
3082 __ movl(r14, rdx); | |
6266
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changeset
|
3083 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
0 | 3084 __ jcc(Assembler::zero, notMethod); |
3085 | |
3086 invokevirtual_helper(rbx, rcx, rdx); | |
3087 __ bind(notMethod); | |
3088 | |
3089 // Get receiver klass into rdx - also a null check | |
6266
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|
3090 __ restore_locals(); // restore r14 |
1d7922586cf6
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|
3091 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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0
diff
changeset
|
3092 __ load_klass(rdx, rcx); |
0 | 3093 |
3094 // profile this call | |
3095 __ profile_virtual_call(rdx, r13, r14); | |
3096 | |
623
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|
3097 Label no_such_interface, no_such_method; |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3098 |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3099 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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changeset
|
3100 rdx, rax, rbx, |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3101 // outputs: method, scan temp. reg |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3102 rbx, r13, |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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changeset
|
3103 no_such_interface); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3104 |
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3105 // rbx: Method* to call |
623
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3106 // rcx: receiver |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3107 // Check for abstract method error |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3108 // Note: This should be done more efficiently via a throw_abstract_method_error |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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diff
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|
3109 // interpreter entry point and a conditional jump to it in case of a null |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3110 // method. |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3111 __ testptr(rbx, rbx); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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parents:
622
diff
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|
3112 __ jcc(Assembler::zero, no_such_method); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3113 |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3114 // do the call |
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3115 // rcx: receiver |
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3116 // rbx,: Method* |
623
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3117 __ jump_from_interpreted(rbx, rdx); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3118 __ should_not_reach_here(); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
diff
changeset
|
3119 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3120 // exception handling code follows... |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
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diff
changeset
|
3121 // note: must restore interpreter registers to canonical |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
diff
changeset
|
3122 // state for exception handling to work correctly! |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3123 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3124 __ bind(no_such_method); |
0 | 3125 // throw exception |
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3126 __ 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
|
3127 __ 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
|
3128 __ 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
|
3129 __ 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
|
3130 // 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
|
3131 __ should_not_reach_here(); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3132 |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3133 __ bind(no_such_interface); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3134 // throw exception |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3135 __ 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
|
3136 __ 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
|
3137 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
0 | 3138 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
3139 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
3140 // the call_VM checks for exception, so we should never return here. | |
3141 __ should_not_reach_here(); | |
3142 } | |
3143 | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3144 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3145 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
|
3146 transition(vtos, vtos); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3147 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
|
3148 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
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6740
diff
changeset
|
3149 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
|
3150 const Register rcx_recv = rcx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
changeset
|
3151 const Register rdx_flags = rdx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3152 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3153 if (!EnableInvokeDynamic) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3154 // 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
|
3155 __ should_not_reach_here(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3156 return; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3157 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3158 |
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
|
3159 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
|
3160 __ 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
|
3161 __ verify_oop(rcx_recv); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
changeset
|
3162 __ null_check(rcx_recv); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
changeset
|
3163 |
6822
f6b0eb4e44cf
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6740
diff
changeset
|
3164 // 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
|
3165 // rbx: MH.invokeExact_MT method (from f2) |
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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6740
diff
changeset
|
3166 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3167 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3168 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3169 // FIXME: profile the LambdaForm also |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3170 __ profile_final_call(rax); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3171 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3172 __ jump_from_interpreted(rbx_method, rdx); |
1d7922586cf6
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twisti
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5995
diff
changeset
|
3173 } |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3174 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3175 |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
diff
changeset
|
3176 void TemplateTable::invokedynamic(int byte_no) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
3177 transition(vtos, vtos); |
6725
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changeset
|
3178 assert(byte_no == f1_byte, "use this argument"); |
726
be93aad57795
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diff
changeset
|
3179 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
3180 if (!EnableInvokeDynamic) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
3181 // We should not encounter this bytecode if !EnableInvokeDynamic. |
be93aad57795
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diff
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|
3182 // The verifier will stop it. However, if we get past the verifier, |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
3183 // this will stop the thread in a reasonable way, without crashing the JVM. |
be93aad57795
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|
3184 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
be93aad57795
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623
diff
changeset
|
3185 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
be93aad57795
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623
diff
changeset
|
3186 // the call_VM checks for exception, so we should never return here. |
be93aad57795
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diff
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|
3187 __ should_not_reach_here(); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
623
diff
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|
3188 return; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
diff
changeset
|
3189 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
3190 |
6266
1d7922586cf6
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|
3191 const Register rbx_method = rbx; |
1d7922586cf6
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|
3192 const Register rax_callsite = rax; |
1d7922586cf6
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|
3193 |
1d7922586cf6
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diff
changeset
|
3194 prepare_invoke(byte_no, rbx_method, rax_callsite); |
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3195 |
6822
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3196 // rax: CallSite object (from cpool->resolved_references[f1]) |
6266
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3197 // rbx: MH.linkToCallSite method (from f2) |
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3198 |
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3199 // Note: rax_callsite is already pushed by prepare_invoke |
1846 | 3200 |
3279
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3201 // %%% should make a type profile for any invokedynamic that takes a ref argument |
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|
3202 // profile this call |
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3203 __ profile_call(r13); |
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3204 |
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|
3205 __ verify_oop(rax_callsite); |
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3206 |
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|
3207 __ jump_from_interpreted(rbx_method, rdx); |
726
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|
3208 } |
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|
3209 |
623
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|
3210 |
0 | 3211 //----------------------------------------------------------------------------- |
3212 // Allocation | |
3213 | |
3214 void TemplateTable::_new() { | |
3215 transition(vtos, atos); | |
3216 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
3217 Label slow_case; | |
3218 Label done; | |
3219 Label initialize_header; | |
3220 Label initialize_object; // including clearing the fields | |
3221 Label allocate_shared; | |
3222 | |
3223 __ get_cpool_and_tags(rsi, rax); | |
1681
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3224 // Make sure the class we're about to instantiate has been resolved. |
6725
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3225 // This is done before loading InstanceKlass to be consistent with the order |
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3226 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
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3227 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 3228 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
3229 JVM_CONSTANT_Class); | |
3230 __ jcc(Assembler::notEqual, slow_case); | |
3231 | |
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3232 // get InstanceKlass |
1681
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3233 __ movptr(rsi, Address(rsi, rdx, |
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3234 Address::times_8, sizeof(ConstantPool))); |
1681
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3235 |
0 | 3236 // make sure klass is initialized & doesn't have finalizer |
3237 // make sure klass is fully initialized | |
4739
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3238 __ cmpb(Address(rsi, |
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3239 InstanceKlass::init_state_offset()), |
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3240 InstanceKlass::fully_initialized); |
0 | 3241 __ jcc(Assembler::notEqual, slow_case); |
3242 | |
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3243 // get instance_size in InstanceKlass (scaled to a count of bytes) |
0 | 3244 __ movl(rdx, |
3245 Address(rsi, | |
4762
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3246 Klass::layout_helper_offset())); |
0 | 3247 // test to see if it has a finalizer or is malformed in some way |
3248 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
3249 __ jcc(Assembler::notZero, slow_case); | |
3250 | |
3251 // Allocate the instance | |
3252 // 1) Try to allocate in the TLAB | |
3253 // 2) if fail and the object is large allocate in the shared Eden | |
3254 // 3) if the above fails (or is not applicable), go to a slow case | |
3255 // (creates a new TLAB, etc.) | |
3256 | |
3257 const bool allow_shared_alloc = | |
3258 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
3259 | |
3260 if (UseTLAB) { | |
304 | 3261 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
3262 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
3263 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
0 | 3264 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
304 | 3265 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
0 | 3266 if (ZeroTLAB) { |
3267 // the fields have been already cleared | |
3268 __ jmp(initialize_header); | |
3269 } else { | |
3270 // initialize both the header and fields | |
3271 __ jmp(initialize_object); | |
3272 } | |
3273 } | |
3274 | |
3275 // Allocation in the shared Eden, if allowed. | |
3276 // | |
3277 // rdx: instance size in bytes | |
3278 if (allow_shared_alloc) { | |
3279 __ bind(allocate_shared); | |
3280 | |
342
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|
3281 ExternalAddress top((address)Universe::heap()->top_addr()); |
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|
3282 ExternalAddress end((address)Universe::heap()->end_addr()); |
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3283 |
0 | 3284 const Register RtopAddr = rscratch1; |
3285 const Register RendAddr = rscratch2; | |
3286 | |
3287 __ lea(RtopAddr, top); | |
3288 __ lea(RendAddr, end); | |
304 | 3289 __ movptr(rax, Address(RtopAddr, 0)); |
0 | 3290 |
3291 // For retries rax gets set by cmpxchgq | |
3292 Label retry; | |
3293 __ bind(retry); | |
304 | 3294 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
3295 __ cmpptr(rbx, Address(RendAddr, 0)); | |
0 | 3296 __ jcc(Assembler::above, slow_case); |
3297 | |
3298 // Compare rax with the top addr, and if still equal, store the new | |
3299 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
3300 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
3301 // | |
3302 // rax: object begin | |
3303 // rbx: object end | |
3304 // rdx: instance size in bytes | |
3305 if (os::is_MP()) { | |
3306 __ lock(); | |
3307 } | |
304 | 3308 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
0 | 3309 |
3310 // if someone beat us on the allocation, try again, otherwise continue | |
3311 __ jcc(Assembler::notEqual, retry); | |
2100
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|
3312 |
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|
3313 __ incr_allocated_bytes(r15_thread, rdx, 0); |
0 | 3314 } |
3315 | |
3316 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
3317 // The object is initialized before the header. If the object size is | |
3318 // zero, go directly to the header initialization. | |
3319 __ bind(initialize_object); | |
3320 __ decrementl(rdx, sizeof(oopDesc)); | |
3321 __ jcc(Assembler::zero, initialize_header); | |
3322 | |
3323 // Initialize object fields | |
3324 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
3325 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
3326 { | |
3327 Label loop; | |
3328 __ bind(loop); | |
3329 __ movq(Address(rax, rdx, Address::times_8, | |
3330 sizeof(oopDesc) - oopSize), | |
3331 rcx); | |
3332 __ decrementl(rdx); | |
3333 __ jcc(Assembler::notZero, loop); | |
3334 } | |
3335 | |
3336 // initialize object header only. | |
3337 __ bind(initialize_header); | |
3338 if (UseBiasedLocking) { | |
4762
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|
3339 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
304 | 3340 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
0 | 3341 } else { |
3342 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
3343 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
3344 } | |
167
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3345 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
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3346 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
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3347 __ store_klass(rax, rsi); // store klass last |
1248
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|
3348 |
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|
3349 { |
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|
3350 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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|
3351 // Trigger dtrace event for fastpath |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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|
3352 __ push(atos); // save the return value |
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6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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|
3353 __ call_VM_leaf( |
455df1b81409
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|
3354 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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|
3355 __ pop(atos); // restore the return value |
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|
3356 |
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|
3357 } |
0 | 3358 __ jmp(done); |
3359 } | |
3360 | |
3361 | |
3362 // slow case | |
3363 __ bind(slow_case); | |
3364 __ get_constant_pool(c_rarg1); | |
3365 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3366 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
3367 __ verify_oop(rax); | |
3368 | |
3369 // continue | |
3370 __ bind(done); | |
3371 } | |
3372 | |
3373 void TemplateTable::newarray() { | |
3374 transition(itos, atos); | |
3375 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
3376 __ movl(c_rarg2, rax); | |
3377 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
3378 c_rarg1, c_rarg2); | |
3379 } | |
3380 | |
3381 void TemplateTable::anewarray() { | |
3382 transition(itos, atos); | |
3383 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3384 __ get_constant_pool(c_rarg1); | |
3385 __ movl(c_rarg3, rax); | |
3386 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
3387 c_rarg1, c_rarg2, c_rarg3); | |
3388 } | |
3389 | |
3390 void TemplateTable::arraylength() { | |
3391 transition(atos, itos); | |
3392 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
3393 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
3394 } | |
3395 | |
3396 void TemplateTable::checkcast() { | |
3397 transition(atos, atos); | |
3398 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3399 __ testptr(rax, rax); // object is in rax |
0 | 3400 __ jcc(Assembler::zero, is_null); |
3401 | |
3402 // Get cpool & tags index | |
3403 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3404 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3405 // See if bytecode has already been quicked | |
3406 __ cmpb(Address(rdx, rbx, | |
3407 Address::times_1, | |
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3408 Array<u1>::base_offset_in_bytes()), |
0 | 3409 JVM_CONSTANT_Class); |
3410 __ jcc(Assembler::equal, quicked); | |
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|
3411 __ push(atos); // save receiver for result, and for GC |
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3412 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3413 // vm_result_2 has metadata result |
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3414 __ get_vm_result_2(rax, r15_thread); |
0 | 3415 __ pop_ptr(rdx); // restore receiver |
3416 __ jmpb(resolved); | |
3417 | |
3418 // Get superklass in rax and subklass in rbx | |
3419 __ bind(quicked); | |
304 | 3420 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
3421 __ movptr(rax, Address(rcx, rbx, | |
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3422 Address::times_8, sizeof(ConstantPool))); |
0 | 3423 |
3424 __ bind(resolved); | |
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3425 __ load_klass(rbx, rdx); |
0 | 3426 |
3427 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
3428 // Superklass in rax. Subklass in rbx. | |
3429 __ gen_subtype_check(rbx, ok_is_subtype); | |
3430 | |
3431 // Come here on failure | |
3432 __ push_ptr(rdx); | |
3433 // object is at TOS | |
3434 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
3435 | |
3436 // Come here on success | |
3437 __ bind(ok_is_subtype); | |
304 | 3438 __ mov(rax, rdx); // Restore object in rdx |
0 | 3439 |
3440 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
3441 if (ProfileInterpreter) { | |
3442 __ jmp(done); | |
3443 __ bind(is_null); | |
3444 __ profile_null_seen(rcx); | |
3445 } else { | |
3446 __ bind(is_null); // same as 'done' | |
3447 } | |
3448 __ bind(done); | |
3449 } | |
3450 | |
3451 void TemplateTable::instanceof() { | |
3452 transition(atos, itos); | |
3453 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3454 __ testptr(rax, rax); |
0 | 3455 __ jcc(Assembler::zero, is_null); |
3456 | |
3457 // Get cpool & tags index | |
3458 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3459 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3460 // See if bytecode has already been quicked | |
3461 __ cmpb(Address(rdx, rbx, | |
3462 Address::times_1, | |
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3463 Array<u1>::base_offset_in_bytes()), |
0 | 3464 JVM_CONSTANT_Class); |
3465 __ jcc(Assembler::equal, quicked); | |
3466 | |
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3467 __ push(atos); // save receiver for result, and for GC |
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3468 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3469 // vm_result_2 has metadata result |
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3470 __ get_vm_result_2(rax, r15_thread); |
0 | 3471 __ pop_ptr(rdx); // restore receiver |
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3472 __ verify_oop(rdx); |
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3473 __ load_klass(rdx, rdx); |
0 | 3474 __ jmpb(resolved); |
3475 | |
3476 // Get superklass in rax and subklass in rdx | |
3477 __ bind(quicked); | |
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3478 __ load_klass(rdx, rax); |
304 | 3479 __ movptr(rax, Address(rcx, rbx, |
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3480 Address::times_8, sizeof(ConstantPool))); |
0 | 3481 |
3482 __ bind(resolved); | |
3483 | |
3484 // Generate subtype check. Blows rcx, rdi | |
3485 // Superklass in rax. Subklass in rdx. | |
3486 __ gen_subtype_check(rdx, ok_is_subtype); | |
3487 | |
3488 // Come here on failure | |
3489 __ xorl(rax, rax); | |
3490 __ jmpb(done); | |
3491 // Come here on success | |
3492 __ bind(ok_is_subtype); | |
3493 __ movl(rax, 1); | |
3494 | |
3495 // Collect counts on whether this test sees NULLs a lot or not. | |
3496 if (ProfileInterpreter) { | |
3497 __ jmp(done); | |
3498 __ bind(is_null); | |
3499 __ profile_null_seen(rcx); | |
3500 } else { | |
3501 __ bind(is_null); // same as 'done' | |
3502 } | |
3503 __ bind(done); | |
3504 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
3505 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
3506 } | |
3507 | |
3508 //----------------------------------------------------------------------------- | |
3509 // Breakpoints | |
3510 void TemplateTable::_breakpoint() { | |
3511 // Note: We get here even if we are single stepping.. | |
3512 // jbug inists on setting breakpoints at every bytecode | |
3513 // even if we are in single step mode. | |
3514 | |
3515 transition(vtos, vtos); | |
3516 | |
3517 // get the unpatched byte code | |
3518 __ get_method(c_rarg1); | |
3519 __ call_VM(noreg, | |
3520 CAST_FROM_FN_PTR(address, | |
3521 InterpreterRuntime::get_original_bytecode_at), | |
3522 c_rarg1, r13); | |
304 | 3523 __ mov(rbx, rax); |
0 | 3524 |
3525 // post the breakpoint event | |
3526 __ get_method(c_rarg1); | |
3527 __ call_VM(noreg, | |
3528 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
3529 c_rarg1, r13); | |
3530 | |
3531 // complete the execution of original bytecode | |
3532 __ dispatch_only_normal(vtos); | |
3533 } | |
3534 | |
3535 //----------------------------------------------------------------------------- | |
3536 // Exceptions | |
3537 | |
3538 void TemplateTable::athrow() { | |
3539 transition(atos, vtos); | |
3540 __ null_check(rax); | |
3541 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
3542 } | |
3543 | |
3544 //----------------------------------------------------------------------------- | |
3545 // Synchronization | |
3546 // | |
3547 // Note: monitorenter & exit are symmetric routines; which is reflected | |
3548 // in the assembly code structure as well | |
3549 // | |
3550 // Stack layout: | |
3551 // | |
3552 // [expressions ] <--- rsp = expression stack top | |
3553 // .. | |
3554 // [expressions ] | |
3555 // [monitor entry] <--- monitor block top = expression stack bot | |
3556 // .. | |
3557 // [monitor entry] | |
3558 // [frame data ] <--- monitor block bot | |
3559 // ... | |
3560 // [saved rbp ] <--- rbp | |
3561 void TemplateTable::monitorenter() { | |
3562 transition(atos, vtos); | |
3563 | |
3564 // check for NULL object | |
3565 __ null_check(rax); | |
3566 | |
3567 const Address monitor_block_top( | |
3568 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3569 const Address monitor_block_bot( | |
3570 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3571 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3572 | |
3573 Label allocated; | |
3574 | |
3575 // initialize entry pointer | |
3576 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
3577 | |
3578 // find a free slot in the monitor block (result in c_rarg1) | |
3579 { | |
3580 Label entry, loop, exit; | |
304 | 3581 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
0 | 3582 // starting with top-most entry |
304 | 3583 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3584 // of monitor block |
3585 __ jmpb(entry); | |
3586 | |
3587 __ bind(loop); | |
3588 // check if current entry is used | |
304 | 3589 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
0 | 3590 // if not used then remember entry in c_rarg1 |
304 | 3591 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
0 | 3592 // check if current entry is for same object |
304 | 3593 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3594 // if same object then stop searching |
3595 __ jccb(Assembler::equal, exit); | |
3596 // otherwise advance to next entry | |
304 | 3597 __ addptr(c_rarg3, entry_size); |
0 | 3598 __ bind(entry); |
3599 // check if bottom reached | |
304 | 3600 __ cmpptr(c_rarg3, c_rarg2); |
0 | 3601 // if not at bottom then check this entry |
3602 __ jcc(Assembler::notEqual, loop); | |
3603 __ bind(exit); | |
3604 } | |
3605 | |
304 | 3606 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
0 | 3607 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
3608 | |
3609 // allocate one if there's no free slot | |
3610 { | |
3611 Label entry, loop; | |
304 | 3612 // 1. compute new pointers // rsp: old expression stack top |
3613 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
3614 __ subptr(rsp, entry_size); // move expression stack top | |
3615 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
3616 __ mov(c_rarg3, rsp); // set start value for copy loop | |
3617 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
0 | 3618 __ jmp(entry); |
3619 // 2. move expression stack contents | |
3620 __ bind(loop); | |
304 | 3621 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
3622 // word from old location | |
3623 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
3624 __ addptr(c_rarg3, wordSize); // advance to next word | |
0 | 3625 __ bind(entry); |
304 | 3626 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
0 | 3627 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
3628 // copy next word | |
3629 } | |
3630 | |
3631 // call run-time routine | |
3632 // c_rarg1: points to monitor entry | |
3633 __ bind(allocated); | |
3634 | |
3635 // Increment bcp to point to the next bytecode, so exception | |
3636 // handling for async. exceptions work correctly. | |
3637 // The object has already been poped from the stack, so the | |
3638 // expression stack looks correct. | |
304 | 3639 __ increment(r13); |
0 | 3640 |
3641 // store object | |
304 | 3642 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
0 | 3643 __ lock_object(c_rarg1); |
3644 | |
3645 // check to make sure this monitor doesn't cause stack overflow after locking | |
3646 __ save_bcp(); // in case of exception | |
3647 __ generate_stack_overflow_check(0); | |
3648 | |
3649 // The bcp has already been incremented. Just need to dispatch to | |
3650 // next instruction. | |
3651 __ dispatch_next(vtos); | |
3652 } | |
3653 | |
3654 | |
3655 void TemplateTable::monitorexit() { | |
3656 transition(atos, vtos); | |
3657 | |
3658 // check for NULL object | |
3659 __ null_check(rax); | |
3660 | |
3661 const Address monitor_block_top( | |
3662 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3663 const Address monitor_block_bot( | |
3664 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3665 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3666 | |
3667 Label found; | |
3668 | |
3669 // find matching slot | |
3670 { | |
3671 Label entry, loop; | |
304 | 3672 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
0 | 3673 // starting with top-most entry |
304 | 3674 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3675 // of monitor block |
3676 __ jmpb(entry); | |
3677 | |
3678 __ bind(loop); | |
3679 // check if current entry is for same object | |
304 | 3680 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3681 // if same object then stop searching |
3682 __ jcc(Assembler::equal, found); | |
3683 // otherwise advance to next entry | |
304 | 3684 __ addptr(c_rarg1, entry_size); |
0 | 3685 __ bind(entry); |
3686 // check if bottom reached | |
304 | 3687 __ cmpptr(c_rarg1, c_rarg2); |
0 | 3688 // if not at bottom then check this entry |
3689 __ jcc(Assembler::notEqual, loop); | |
3690 } | |
3691 | |
3692 // error handling. Unlocking was not block-structured | |
3693 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
3694 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
3695 __ should_not_reach_here(); | |
3696 | |
3697 // call run-time routine | |
3698 // rsi: points to monitor entry | |
3699 __ bind(found); | |
3700 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
3701 __ unlock_object(c_rarg1); | |
3702 __ pop_ptr(rax); // discard object | |
3703 } | |
3704 | |
3705 | |
3706 // Wide instructions | |
3707 void TemplateTable::wide() { | |
3708 transition(vtos, vtos); | |
3709 __ load_unsigned_byte(rbx, at_bcp(1)); | |
3710 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
3711 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
3712 // Note: the r13 increment step is part of the individual wide | |
3713 // bytecode implementations | |
3714 } | |
3715 | |
3716 | |
3717 // Multi arrays | |
3718 void TemplateTable::multianewarray() { | |
3719 transition(vtos, atos); | |
3720 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
3721 // last dim is on top of stack; we want address of first one: | |
3722 // first_addr = last_addr + (ndims - 1) * wordSize | |
304 | 3723 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
0 | 3724 call_VM(rax, |
3725 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
3726 c_rarg1); | |
3727 __ load_unsigned_byte(rbx, at_bcp(3)); | |
304 | 3728 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
0 | 3729 } |
304 | 3730 #endif // !CC_INTERP |