Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 7212:291ffc492eb6
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 14 Dec 2012 14:35:13 +0100 |
| parents | cd3d6a6b95d9 |
| children | db9981fd3124 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/interpreter.hpp" |
| 28 #include "interpreter/interpreterRuntime.hpp" | |
| 29 #include "interpreter/templateTable.hpp" | |
| 30 #include "memory/universe.inline.hpp" | |
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31 #include "oops/methodData.hpp" |
| 1972 | 32 #include "oops/objArrayKlass.hpp" |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "prims/methodHandles.hpp" | |
| 35 #include "runtime/sharedRuntime.hpp" | |
| 36 #include "runtime/stubRoutines.hpp" | |
| 37 #include "runtime/synchronizer.hpp" | |
| 0 | 38 |
| 304 | 39 #ifndef CC_INTERP |
| 40 | |
| 0 | 41 #define __ _masm-> |
| 42 | |
| 43 // Platform-dependent initialization | |
| 44 | |
| 45 void TemplateTable::pd_initialize() { | |
| 46 // No amd64 specific initialization | |
| 47 } | |
| 48 | |
| 49 // Address computation: local variables | |
| 50 | |
| 51 static inline Address iaddress(int n) { | |
| 52 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
| 53 } | |
| 54 | |
| 55 static inline Address laddress(int n) { | |
| 56 return iaddress(n + 1); | |
| 57 } | |
| 58 | |
| 59 static inline Address faddress(int n) { | |
| 60 return iaddress(n); | |
| 61 } | |
| 62 | |
| 63 static inline Address daddress(int n) { | |
| 64 return laddress(n); | |
| 65 } | |
| 66 | |
| 67 static inline Address aaddress(int n) { | |
| 68 return iaddress(n); | |
| 69 } | |
| 70 | |
| 71 static inline Address iaddress(Register r) { | |
| 1506 | 72 return Address(r14, r, Address::times_8); |
| 0 | 73 } |
| 74 | |
| 75 static inline Address laddress(Register r) { | |
| 76 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
| 77 } | |
| 78 | |
| 79 static inline Address faddress(Register r) { | |
| 80 return iaddress(r); | |
| 81 } | |
| 82 | |
| 83 static inline Address daddress(Register r) { | |
| 84 return laddress(r); | |
| 85 } | |
| 86 | |
| 87 static inline Address aaddress(Register r) { | |
| 88 return iaddress(r); | |
| 89 } | |
| 90 | |
| 91 static inline Address at_rsp() { | |
| 92 return Address(rsp, 0); | |
| 93 } | |
| 94 | |
| 95 // At top of Java expression stack which may be different than esp(). It | |
| 96 // isn't for category 1 objects. | |
| 97 static inline Address at_tos () { | |
| 98 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
| 99 } | |
| 100 | |
| 101 static inline Address at_tos_p1() { | |
| 102 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
| 103 } | |
| 104 | |
| 105 static inline Address at_tos_p2() { | |
| 106 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
| 107 } | |
| 108 | |
| 109 static inline Address at_tos_p3() { | |
| 110 return Address(rsp, Interpreter::expr_offset_in_bytes(3)); | |
| 111 } | |
| 112 | |
| 113 // Condition conversion | |
| 114 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
| 115 switch (cc) { | |
| 116 case TemplateTable::equal : return Assembler::notEqual; | |
| 117 case TemplateTable::not_equal : return Assembler::equal; | |
| 118 case TemplateTable::less : return Assembler::greaterEqual; | |
| 119 case TemplateTable::less_equal : return Assembler::greater; | |
| 120 case TemplateTable::greater : return Assembler::lessEqual; | |
| 121 case TemplateTable::greater_equal: return Assembler::less; | |
| 122 } | |
| 123 ShouldNotReachHere(); | |
| 124 return Assembler::zero; | |
| 125 } | |
| 126 | |
| 127 | |
| 128 // Miscelaneous helper routines | |
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129 // Store an oop (or NULL) at the address described by obj. |
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130 // If val == noreg this means store a NULL |
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131 |
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132 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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133 Address obj, |
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134 Register val, |
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135 BarrierSet::Name barrier, |
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136 bool precise) { |
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137 assert(val == noreg || val == rax, "parameter is just for looks"); |
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138 switch (barrier) { |
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139 #ifndef SERIALGC |
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140 case BarrierSet::G1SATBCT: |
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141 case BarrierSet::G1SATBCTLogging: |
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142 { |
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143 // flatten object address if needed |
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144 if (obj.index() == noreg && obj.disp() == 0) { |
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145 if (obj.base() != rdx) { |
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146 __ movq(rdx, obj.base()); |
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147 } |
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148 } else { |
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149 __ leaq(rdx, obj); |
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150 } |
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151 __ g1_write_barrier_pre(rdx /* obj */, |
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152 rbx /* pre_val */, |
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153 r15_thread /* thread */, |
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154 r8 /* tmp */, |
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155 val != noreg /* tosca_live */, |
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156 false /* expand_call */); |
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157 if (val == noreg) { |
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158 __ store_heap_oop_null(Address(rdx, 0)); |
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159 } else { |
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160 __ store_heap_oop(Address(rdx, 0), val); |
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161 __ g1_write_barrier_post(rdx /* store_adr */, |
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162 val /* new_val */, |
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163 r15_thread /* thread */, |
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164 r8 /* tmp */, |
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165 rbx /* tmp2 */); |
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166 } |
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167 |
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168 } |
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169 break; |
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170 #endif // SERIALGC |
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171 case BarrierSet::CardTableModRef: |
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172 case BarrierSet::CardTableExtension: |
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173 { |
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174 if (val == noreg) { |
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175 __ store_heap_oop_null(obj); |
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176 } else { |
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177 __ store_heap_oop(obj, val); |
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178 // flatten object address if needed |
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179 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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180 __ store_check(obj.base()); |
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181 } else { |
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182 __ leaq(rdx, obj); |
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183 __ store_check(rdx); |
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184 } |
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185 } |
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186 } |
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187 break; |
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188 case BarrierSet::ModRef: |
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189 case BarrierSet::Other: |
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190 if (val == noreg) { |
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191 __ store_heap_oop_null(obj); |
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192 } else { |
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193 __ store_heap_oop(obj, val); |
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194 } |
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195 break; |
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196 default : |
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197 ShouldNotReachHere(); |
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198 |
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199 } |
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200 } |
| 0 | 201 |
| 202 Address TemplateTable::at_bcp(int offset) { | |
| 203 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 204 return Address(r13, offset); | |
| 205 } | |
| 206 | |
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207 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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208 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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209 int byte_no) { |
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210 if (!RewriteBytecodes) return; |
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211 Label L_patch_done; |
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212 |
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213 switch (bc) { |
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214 case Bytecodes::_fast_aputfield: |
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215 case Bytecodes::_fast_bputfield: |
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216 case Bytecodes::_fast_cputfield: |
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217 case Bytecodes::_fast_dputfield: |
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218 case Bytecodes::_fast_fputfield: |
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219 case Bytecodes::_fast_iputfield: |
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220 case Bytecodes::_fast_lputfield: |
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221 case Bytecodes::_fast_sputfield: |
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222 { |
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223 // We skip bytecode quickening for putfield instructions when |
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224 // the put_code written to the constant pool cache is zero. |
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225 // This is required so that every execution of this instruction |
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226 // calls out to InterpreterRuntime::resolve_get_put to do |
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227 // additional, required work. |
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228 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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229 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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230 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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231 __ movl(bc_reg, bc); |
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232 __ cmpl(temp_reg, (int) 0); |
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233 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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234 } |
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235 break; |
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236 default: |
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237 assert(byte_no == -1, "sanity"); |
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238 // the pair bytecodes have already done the load. |
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239 if (load_bc_into_bc_reg) { |
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240 __ movl(bc_reg, bc); |
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241 } |
| 0 | 242 } |
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243 |
| 0 | 244 if (JvmtiExport::can_post_breakpoint()) { |
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245 Label L_fast_patch; |
| 0 | 246 // if a breakpoint is present we can't rewrite the stream directly |
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247 __ movzbl(temp_reg, at_bcp(0)); |
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248 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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249 __ jcc(Assembler::notEqual, L_fast_patch); |
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250 __ get_method(temp_reg); |
| 0 | 251 // Let breakpoint table handling rewrite to quicker bytecode |
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252 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
| 0 | 253 #ifndef ASSERT |
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254 __ jmpb(L_patch_done); |
| 1108 | 255 #else |
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256 __ jmp(L_patch_done); |
| 1108 | 257 #endif |
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258 __ bind(L_fast_patch); |
| 0 | 259 } |
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260 |
| 1108 | 261 #ifdef ASSERT |
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262 Label L_okay; |
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263 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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264 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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265 __ jcc(Assembler::equal, L_okay); |
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266 __ cmpl(temp_reg, bc_reg); |
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267 __ jcc(Assembler::equal, L_okay); |
| 0 | 268 __ stop("patching the wrong bytecode"); |
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269 __ bind(L_okay); |
| 0 | 270 #endif |
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271 |
| 0 | 272 // patch bytecode |
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273 __ movb(at_bcp(0), bc_reg); |
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274 __ bind(L_patch_done); |
| 0 | 275 } |
| 276 | |
| 277 | |
| 278 // Individual instructions | |
| 279 | |
| 280 void TemplateTable::nop() { | |
| 281 transition(vtos, vtos); | |
| 282 // nothing to do | |
| 283 } | |
| 284 | |
| 285 void TemplateTable::shouldnotreachhere() { | |
| 286 transition(vtos, vtos); | |
| 287 __ stop("shouldnotreachhere bytecode"); | |
| 288 } | |
| 289 | |
| 290 void TemplateTable::aconst_null() { | |
| 291 transition(vtos, atos); | |
| 292 __ xorl(rax, rax); | |
| 293 } | |
| 294 | |
| 295 void TemplateTable::iconst(int value) { | |
| 296 transition(vtos, itos); | |
| 297 if (value == 0) { | |
| 298 __ xorl(rax, rax); | |
| 299 } else { | |
| 300 __ movl(rax, value); | |
| 301 } | |
| 302 } | |
| 303 | |
| 304 void TemplateTable::lconst(int value) { | |
| 305 transition(vtos, ltos); | |
| 306 if (value == 0) { | |
| 307 __ xorl(rax, rax); | |
| 308 } else { | |
| 309 __ movl(rax, value); | |
| 310 } | |
| 311 } | |
| 312 | |
| 313 void TemplateTable::fconst(int value) { | |
| 314 transition(vtos, ftos); | |
| 315 static float one = 1.0f, two = 2.0f; | |
| 316 switch (value) { | |
| 317 case 0: | |
| 318 __ xorps(xmm0, xmm0); | |
| 319 break; | |
| 320 case 1: | |
| 321 __ movflt(xmm0, ExternalAddress((address) &one)); | |
| 322 break; | |
| 323 case 2: | |
| 324 __ movflt(xmm0, ExternalAddress((address) &two)); | |
| 325 break; | |
| 326 default: | |
| 327 ShouldNotReachHere(); | |
| 328 break; | |
| 329 } | |
| 330 } | |
| 331 | |
| 332 void TemplateTable::dconst(int value) { | |
| 333 transition(vtos, dtos); | |
| 334 static double one = 1.0; | |
| 335 switch (value) { | |
| 336 case 0: | |
| 337 __ xorpd(xmm0, xmm0); | |
| 338 break; | |
| 339 case 1: | |
| 340 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
| 341 break; | |
| 342 default: | |
| 343 ShouldNotReachHere(); | |
| 344 break; | |
| 345 } | |
| 346 } | |
| 347 | |
| 348 void TemplateTable::bipush() { | |
| 349 transition(vtos, itos); | |
| 350 __ load_signed_byte(rax, at_bcp(1)); | |
| 351 } | |
| 352 | |
| 353 void TemplateTable::sipush() { | |
| 354 transition(vtos, itos); | |
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355 __ load_unsigned_short(rax, at_bcp(1)); |
| 0 | 356 __ bswapl(rax); |
| 357 __ sarl(rax, 16); | |
| 358 } | |
| 359 | |
| 360 void TemplateTable::ldc(bool wide) { | |
| 361 transition(vtos, vtos); | |
| 362 Label call_ldc, notFloat, notClass, Done; | |
| 363 | |
| 364 if (wide) { | |
| 365 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 366 } else { | |
| 367 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 368 } | |
| 369 | |
| 370 __ get_cpool_and_tags(rcx, rax); | |
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371 const int base_offset = ConstantPool::header_size() * wordSize; |
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372 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 373 |
| 374 // get type | |
| 375 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
| 376 | |
| 377 // unresolved class - get the resolved class | |
| 378 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
| 379 __ jccb(Assembler::equal, call_ldc); | |
| 380 | |
| 381 // unresolved class in error state - call into runtime to throw the error | |
| 382 // from the first resolution attempt | |
| 383 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
| 384 __ jccb(Assembler::equal, call_ldc); | |
| 385 | |
| 386 // resolved class - need to call vm to get java mirror of the class | |
| 387 __ cmpl(rdx, JVM_CONSTANT_Class); | |
| 388 __ jcc(Assembler::notEqual, notClass); | |
| 389 | |
| 390 __ bind(call_ldc); | |
| 391 __ movl(c_rarg1, wide); | |
| 392 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
| 393 __ push_ptr(rax); | |
| 394 __ verify_oop(rax); | |
| 395 __ jmp(Done); | |
| 396 | |
| 397 __ bind(notClass); | |
| 398 __ cmpl(rdx, JVM_CONSTANT_Float); | |
| 399 __ jccb(Assembler::notEqual, notFloat); | |
| 400 // ftos | |
| 401 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 402 __ push_f(); | |
| 403 __ jmp(Done); | |
| 404 | |
| 405 __ bind(notFloat); | |
| 406 #ifdef ASSERT | |
| 407 { | |
| 408 Label L; | |
| 409 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
| 410 __ jcc(Assembler::equal, L); | |
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411 // String and Object are rewritten to fast_aldc |
| 0 | 412 __ stop("unexpected tag type in ldc"); |
| 413 __ bind(L); | |
| 414 } | |
| 415 #endif | |
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416 // itos JVM_CONSTANT_Integer only |
| 0 | 417 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
| 418 __ push_i(rax); | |
| 419 __ bind(Done); | |
| 420 } | |
| 421 | |
| 1602 | 422 // Fast path for caching oop constants. |
| 423 void TemplateTable::fast_aldc(bool wide) { | |
| 424 transition(vtos, atos); | |
| 425 | |
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426 Register result = rax; |
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427 Register tmp = rdx; |
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428 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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429 |
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430 Label resolved; |
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431 |
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432 // We are resolved if the resolved reference cache entry contains a |
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433 // non-null object (String, MethodType, etc.) |
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434 assert_different_registers(result, tmp); |
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435 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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436 __ load_resolved_reference_at_index(result, tmp); |
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437 __ testl(result, result); |
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438 __ jcc(Assembler::notZero, resolved); |
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439 |
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440 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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441 |
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442 // first time invocation - must resolve first |
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443 __ movl(tmp, (int)bytecode()); |
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444 __ call_VM(result, entry, tmp); |
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445 |
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446 __ bind(resolved); |
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447 |
| 1602 | 448 if (VerifyOops) { |
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449 __ verify_oop(result); |
| 1602 | 450 } |
| 451 } | |
| 452 | |
| 0 | 453 void TemplateTable::ldc2_w() { |
| 454 transition(vtos, vtos); | |
| 455 Label Long, Done; | |
| 456 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 457 | |
| 458 __ get_cpool_and_tags(rcx, rax); | |
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459 const int base_offset = ConstantPool::header_size() * wordSize; |
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460 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 461 |
| 462 // get type | |
| 463 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
| 464 JVM_CONSTANT_Double); | |
| 465 __ jccb(Assembler::notEqual, Long); | |
| 466 // dtos | |
| 467 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 468 __ push_d(); | |
| 469 __ jmpb(Done); | |
| 470 | |
| 471 __ bind(Long); | |
| 472 // ltos | |
| 473 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 474 __ push_l(); | |
| 475 | |
| 476 __ bind(Done); | |
| 477 } | |
| 478 | |
| 479 void TemplateTable::locals_index(Register reg, int offset) { | |
| 480 __ load_unsigned_byte(reg, at_bcp(offset)); | |
| 304 | 481 __ negptr(reg); |
| 0 | 482 } |
| 483 | |
| 484 void TemplateTable::iload() { | |
| 485 transition(vtos, itos); | |
| 486 if (RewriteFrequentPairs) { | |
| 487 Label rewrite, done; | |
| 488 const Register bc = c_rarg3; | |
| 489 assert(rbx != bc, "register damaged"); | |
| 490 | |
| 491 // get next byte | |
| 492 __ load_unsigned_byte(rbx, | |
| 493 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
| 494 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 495 // last two iloads in a pair. Comparing against fast_iload means that | |
| 496 // the next bytecode is neither an iload or a caload, and therefore | |
| 497 // an iload pair. | |
| 498 __ cmpl(rbx, Bytecodes::_iload); | |
| 499 __ jcc(Assembler::equal, done); | |
| 500 | |
| 501 __ cmpl(rbx, Bytecodes::_fast_iload); | |
| 502 __ movl(bc, Bytecodes::_fast_iload2); | |
| 503 __ jccb(Assembler::equal, rewrite); | |
| 504 | |
| 505 // if _caload, rewrite to fast_icaload | |
| 506 __ cmpl(rbx, Bytecodes::_caload); | |
| 507 __ movl(bc, Bytecodes::_fast_icaload); | |
| 508 __ jccb(Assembler::equal, rewrite); | |
| 509 | |
| 510 // rewrite so iload doesn't check again. | |
| 511 __ movl(bc, Bytecodes::_fast_iload); | |
| 512 | |
| 513 // rewrite | |
| 514 // bc: fast bytecode | |
| 515 __ bind(rewrite); | |
| 516 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
| 517 __ bind(done); | |
| 518 } | |
| 519 | |
| 520 // Get the local value into tos | |
| 521 locals_index(rbx); | |
| 522 __ movl(rax, iaddress(rbx)); | |
| 523 } | |
| 524 | |
| 525 void TemplateTable::fast_iload2() { | |
| 526 transition(vtos, itos); | |
| 527 locals_index(rbx); | |
| 528 __ movl(rax, iaddress(rbx)); | |
| 529 __ push(itos); | |
| 530 locals_index(rbx, 3); | |
| 531 __ movl(rax, iaddress(rbx)); | |
| 532 } | |
| 533 | |
| 534 void TemplateTable::fast_iload() { | |
| 535 transition(vtos, itos); | |
| 536 locals_index(rbx); | |
| 537 __ movl(rax, iaddress(rbx)); | |
| 538 } | |
| 539 | |
| 540 void TemplateTable::lload() { | |
| 541 transition(vtos, ltos); | |
| 542 locals_index(rbx); | |
| 543 __ movq(rax, laddress(rbx)); | |
| 544 } | |
| 545 | |
| 546 void TemplateTable::fload() { | |
| 547 transition(vtos, ftos); | |
| 548 locals_index(rbx); | |
| 549 __ movflt(xmm0, faddress(rbx)); | |
| 550 } | |
| 551 | |
| 552 void TemplateTable::dload() { | |
| 553 transition(vtos, dtos); | |
| 554 locals_index(rbx); | |
| 555 __ movdbl(xmm0, daddress(rbx)); | |
| 556 } | |
| 557 | |
| 558 void TemplateTable::aload() { | |
| 559 transition(vtos, atos); | |
| 560 locals_index(rbx); | |
| 304 | 561 __ movptr(rax, aaddress(rbx)); |
| 0 | 562 } |
| 563 | |
| 564 void TemplateTable::locals_index_wide(Register reg) { | |
| 565 __ movl(reg, at_bcp(2)); | |
| 566 __ bswapl(reg); | |
| 567 __ shrl(reg, 16); | |
| 304 | 568 __ negptr(reg); |
| 0 | 569 } |
| 570 | |
| 571 void TemplateTable::wide_iload() { | |
| 572 transition(vtos, itos); | |
| 573 locals_index_wide(rbx); | |
| 574 __ movl(rax, iaddress(rbx)); | |
| 575 } | |
| 576 | |
| 577 void TemplateTable::wide_lload() { | |
| 578 transition(vtos, ltos); | |
| 579 locals_index_wide(rbx); | |
| 580 __ movq(rax, laddress(rbx)); | |
| 581 } | |
| 582 | |
| 583 void TemplateTable::wide_fload() { | |
| 584 transition(vtos, ftos); | |
| 585 locals_index_wide(rbx); | |
| 586 __ movflt(xmm0, faddress(rbx)); | |
| 587 } | |
| 588 | |
| 589 void TemplateTable::wide_dload() { | |
| 590 transition(vtos, dtos); | |
| 591 locals_index_wide(rbx); | |
| 592 __ movdbl(xmm0, daddress(rbx)); | |
| 593 } | |
| 594 | |
| 595 void TemplateTable::wide_aload() { | |
| 596 transition(vtos, atos); | |
| 597 locals_index_wide(rbx); | |
| 304 | 598 __ movptr(rax, aaddress(rbx)); |
| 0 | 599 } |
| 600 | |
| 601 void TemplateTable::index_check(Register array, Register index) { | |
| 602 // destroys rbx | |
| 603 // check array | |
| 604 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
| 605 // sign extend index for use by indexed load | |
| 304 | 606 __ movl2ptr(index, index); |
| 0 | 607 // check index |
| 608 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
| 609 if (index != rbx) { | |
| 610 // ??? convention: move aberrant index into ebx for exception message | |
| 611 assert(rbx != array, "different registers"); | |
| 612 __ movl(rbx, index); | |
| 613 } | |
| 614 __ jump_cc(Assembler::aboveEqual, | |
| 615 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
| 616 } | |
| 617 | |
| 618 void TemplateTable::iaload() { | |
| 619 transition(itos, itos); | |
| 620 __ pop_ptr(rdx); | |
| 621 // eax: index | |
| 622 // rdx: array | |
| 623 index_check(rdx, rax); // kills rbx | |
| 624 __ movl(rax, Address(rdx, rax, | |
| 625 Address::times_4, | |
| 626 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 627 } | |
| 628 | |
| 629 void TemplateTable::laload() { | |
| 630 transition(itos, ltos); | |
| 631 __ pop_ptr(rdx); | |
| 632 // eax: index | |
| 633 // rdx: array | |
| 634 index_check(rdx, rax); // kills rbx | |
| 635 __ movq(rax, Address(rdx, rbx, | |
| 636 Address::times_8, | |
| 637 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
| 638 } | |
| 639 | |
| 640 void TemplateTable::faload() { | |
| 641 transition(itos, ftos); | |
| 642 __ pop_ptr(rdx); | |
| 643 // eax: index | |
| 644 // rdx: array | |
| 645 index_check(rdx, rax); // kills rbx | |
| 646 __ movflt(xmm0, Address(rdx, rax, | |
| 647 Address::times_4, | |
| 648 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 649 } | |
| 650 | |
| 651 void TemplateTable::daload() { | |
| 652 transition(itos, dtos); | |
| 653 __ pop_ptr(rdx); | |
| 654 // eax: index | |
| 655 // rdx: array | |
| 656 index_check(rdx, rax); // kills rbx | |
| 657 __ movdbl(xmm0, Address(rdx, rax, | |
| 658 Address::times_8, | |
| 659 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 660 } | |
| 661 | |
| 662 void TemplateTable::aaload() { | |
| 663 transition(itos, atos); | |
| 664 __ pop_ptr(rdx); | |
| 665 // eax: index | |
| 666 // rdx: array | |
| 667 index_check(rdx, rax); // kills rbx | |
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668 __ load_heap_oop(rax, Address(rdx, rax, |
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669 UseCompressedOops ? Address::times_4 : Address::times_8, |
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670 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 0 | 671 } |
| 672 | |
| 673 void TemplateTable::baload() { | |
| 674 transition(itos, itos); | |
| 675 __ pop_ptr(rdx); | |
| 676 // eax: index | |
| 677 // rdx: array | |
| 678 index_check(rdx, rax); // kills rbx | |
| 679 __ load_signed_byte(rax, | |
| 680 Address(rdx, rax, | |
| 681 Address::times_1, | |
| 682 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
| 683 } | |
| 684 | |
| 685 void TemplateTable::caload() { | |
| 686 transition(itos, itos); | |
| 687 __ pop_ptr(rdx); | |
| 688 // eax: index | |
| 689 // rdx: array | |
| 690 index_check(rdx, rax); // kills rbx | |
|
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691 __ load_unsigned_short(rax, |
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692 Address(rdx, rax, |
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693 Address::times_2, |
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694 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 695 } |
| 696 | |
| 697 // iload followed by caload frequent pair | |
| 698 void TemplateTable::fast_icaload() { | |
| 699 transition(vtos, itos); | |
| 700 // load index out of locals | |
| 701 locals_index(rbx); | |
| 702 __ movl(rax, iaddress(rbx)); | |
| 703 | |
| 704 // eax: index | |
| 705 // rdx: array | |
| 706 __ pop_ptr(rdx); | |
| 707 index_check(rdx, rax); // kills rbx | |
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708 __ load_unsigned_short(rax, |
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709 Address(rdx, rax, |
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710 Address::times_2, |
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711 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 712 } |
| 713 | |
| 714 void TemplateTable::saload() { | |
| 715 transition(itos, itos); | |
| 716 __ pop_ptr(rdx); | |
| 717 // eax: index | |
| 718 // rdx: array | |
| 719 index_check(rdx, rax); // kills rbx | |
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720 __ load_signed_short(rax, |
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721 Address(rdx, rax, |
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722 Address::times_2, |
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723 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
| 0 | 724 } |
| 725 | |
| 726 void TemplateTable::iload(int n) { | |
| 727 transition(vtos, itos); | |
| 728 __ movl(rax, iaddress(n)); | |
| 729 } | |
| 730 | |
| 731 void TemplateTable::lload(int n) { | |
| 732 transition(vtos, ltos); | |
| 733 __ movq(rax, laddress(n)); | |
| 734 } | |
| 735 | |
| 736 void TemplateTable::fload(int n) { | |
| 737 transition(vtos, ftos); | |
| 738 __ movflt(xmm0, faddress(n)); | |
| 739 } | |
| 740 | |
| 741 void TemplateTable::dload(int n) { | |
| 742 transition(vtos, dtos); | |
| 743 __ movdbl(xmm0, daddress(n)); | |
| 744 } | |
| 745 | |
| 746 void TemplateTable::aload(int n) { | |
| 747 transition(vtos, atos); | |
| 304 | 748 __ movptr(rax, aaddress(n)); |
| 0 | 749 } |
| 750 | |
| 751 void TemplateTable::aload_0() { | |
| 752 transition(vtos, atos); | |
| 753 // According to bytecode histograms, the pairs: | |
| 754 // | |
| 755 // _aload_0, _fast_igetfield | |
| 756 // _aload_0, _fast_agetfield | |
| 757 // _aload_0, _fast_fgetfield | |
| 758 // | |
| 759 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
| 760 // _aload_0 bytecode checks if the next bytecode is either | |
| 761 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
| 762 // rewrites the current bytecode into a pair bytecode; otherwise it | |
| 763 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
| 764 // the pair check anymore. | |
| 765 // | |
| 766 // Note: If the next bytecode is _getfield, the rewrite must be | |
| 767 // delayed, otherwise we may miss an opportunity for a pair. | |
| 768 // | |
| 769 // Also rewrite frequent pairs | |
| 770 // aload_0, aload_1 | |
| 771 // aload_0, iload_1 | |
| 772 // These bytecodes with a small amount of code are most profitable | |
| 773 // to rewrite | |
| 774 if (RewriteFrequentPairs) { | |
| 775 Label rewrite, done; | |
| 776 const Register bc = c_rarg3; | |
| 777 assert(rbx != bc, "register damaged"); | |
| 778 // get next byte | |
| 779 __ load_unsigned_byte(rbx, | |
| 780 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
| 781 | |
| 782 // do actual aload_0 | |
| 783 aload(0); | |
| 784 | |
| 785 // if _getfield then wait with rewrite | |
| 786 __ cmpl(rbx, Bytecodes::_getfield); | |
| 787 __ jcc(Assembler::equal, done); | |
| 788 | |
| 789 // if _igetfield then reqrite to _fast_iaccess_0 | |
| 790 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
| 791 Bytecodes::_aload_0, | |
| 792 "fix bytecode definition"); | |
| 793 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
| 794 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
| 795 __ jccb(Assembler::equal, rewrite); | |
| 796 | |
| 797 // if _agetfield then reqrite to _fast_aaccess_0 | |
| 798 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
| 799 Bytecodes::_aload_0, | |
| 800 "fix bytecode definition"); | |
| 801 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
| 802 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
| 803 __ jccb(Assembler::equal, rewrite); | |
| 804 | |
| 805 // if _fgetfield then reqrite to _fast_faccess_0 | |
| 806 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
| 807 Bytecodes::_aload_0, | |
| 808 "fix bytecode definition"); | |
| 809 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
| 810 __ movl(bc, Bytecodes::_fast_faccess_0); | |
| 811 __ jccb(Assembler::equal, rewrite); | |
| 812 | |
| 813 // else rewrite to _fast_aload0 | |
| 814 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
| 815 Bytecodes::_aload_0, | |
| 816 "fix bytecode definition"); | |
| 817 __ movl(bc, Bytecodes::_fast_aload_0); | |
| 818 | |
| 819 // rewrite | |
| 820 // bc: fast bytecode | |
| 821 __ bind(rewrite); | |
| 822 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
| 823 | |
| 824 __ bind(done); | |
| 825 } else { | |
| 826 aload(0); | |
| 827 } | |
| 828 } | |
| 829 | |
| 830 void TemplateTable::istore() { | |
| 831 transition(itos, vtos); | |
| 832 locals_index(rbx); | |
| 833 __ movl(iaddress(rbx), rax); | |
| 834 } | |
| 835 | |
| 836 void TemplateTable::lstore() { | |
| 837 transition(ltos, vtos); | |
| 838 locals_index(rbx); | |
| 839 __ movq(laddress(rbx), rax); | |
| 840 } | |
| 841 | |
| 842 void TemplateTable::fstore() { | |
| 843 transition(ftos, vtos); | |
| 844 locals_index(rbx); | |
| 845 __ movflt(faddress(rbx), xmm0); | |
| 846 } | |
| 847 | |
| 848 void TemplateTable::dstore() { | |
| 849 transition(dtos, vtos); | |
| 850 locals_index(rbx); | |
| 851 __ movdbl(daddress(rbx), xmm0); | |
| 852 } | |
| 853 | |
| 854 void TemplateTable::astore() { | |
| 855 transition(vtos, vtos); | |
| 1506 | 856 __ pop_ptr(rax); |
| 0 | 857 locals_index(rbx); |
| 304 | 858 __ movptr(aaddress(rbx), rax); |
| 0 | 859 } |
| 860 | |
| 861 void TemplateTable::wide_istore() { | |
| 862 transition(vtos, vtos); | |
| 863 __ pop_i(); | |
| 864 locals_index_wide(rbx); | |
| 865 __ movl(iaddress(rbx), rax); | |
| 866 } | |
| 867 | |
| 868 void TemplateTable::wide_lstore() { | |
| 869 transition(vtos, vtos); | |
| 870 __ pop_l(); | |
| 871 locals_index_wide(rbx); | |
| 872 __ movq(laddress(rbx), rax); | |
| 873 } | |
| 874 | |
| 875 void TemplateTable::wide_fstore() { | |
| 876 transition(vtos, vtos); | |
| 877 __ pop_f(); | |
| 878 locals_index_wide(rbx); | |
| 879 __ movflt(faddress(rbx), xmm0); | |
| 880 } | |
| 881 | |
| 882 void TemplateTable::wide_dstore() { | |
| 883 transition(vtos, vtos); | |
| 884 __ pop_d(); | |
| 885 locals_index_wide(rbx); | |
| 886 __ movdbl(daddress(rbx), xmm0); | |
| 887 } | |
| 888 | |
| 889 void TemplateTable::wide_astore() { | |
| 890 transition(vtos, vtos); | |
| 1506 | 891 __ pop_ptr(rax); |
| 0 | 892 locals_index_wide(rbx); |
| 304 | 893 __ movptr(aaddress(rbx), rax); |
| 0 | 894 } |
| 895 | |
| 896 void TemplateTable::iastore() { | |
| 897 transition(itos, vtos); | |
| 898 __ pop_i(rbx); | |
| 899 __ pop_ptr(rdx); | |
| 900 // eax: value | |
| 901 // ebx: index | |
| 902 // rdx: array | |
| 903 index_check(rdx, rbx); // prefer index in ebx | |
| 904 __ movl(Address(rdx, rbx, | |
| 905 Address::times_4, | |
| 906 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
| 907 rax); | |
| 908 } | |
| 909 | |
| 910 void TemplateTable::lastore() { | |
| 911 transition(ltos, vtos); | |
| 912 __ pop_i(rbx); | |
| 913 __ pop_ptr(rdx); | |
| 914 // rax: value | |
| 915 // ebx: index | |
| 916 // rdx: array | |
| 917 index_check(rdx, rbx); // prefer index in ebx | |
| 918 __ movq(Address(rdx, rbx, | |
| 919 Address::times_8, | |
| 920 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
| 921 rax); | |
| 922 } | |
| 923 | |
| 924 void TemplateTable::fastore() { | |
| 925 transition(ftos, vtos); | |
| 926 __ pop_i(rbx); | |
| 927 __ pop_ptr(rdx); | |
| 928 // xmm0: value | |
| 929 // ebx: index | |
| 930 // rdx: array | |
| 931 index_check(rdx, rbx); // prefer index in ebx | |
| 932 __ movflt(Address(rdx, rbx, | |
| 933 Address::times_4, | |
| 934 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
| 935 xmm0); | |
| 936 } | |
| 937 | |
| 938 void TemplateTable::dastore() { | |
| 939 transition(dtos, vtos); | |
| 940 __ pop_i(rbx); | |
| 941 __ pop_ptr(rdx); | |
| 942 // xmm0: value | |
| 943 // ebx: index | |
| 944 // rdx: array | |
| 945 index_check(rdx, rbx); // prefer index in ebx | |
| 946 __ movdbl(Address(rdx, rbx, | |
| 947 Address::times_8, | |
| 948 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
| 949 xmm0); | |
| 950 } | |
| 951 | |
| 952 void TemplateTable::aastore() { | |
| 953 Label is_null, ok_is_subtype, done; | |
| 954 transition(vtos, vtos); | |
| 955 // stack: ..., array, index, value | |
| 304 | 956 __ movptr(rax, at_tos()); // value |
| 0 | 957 __ movl(rcx, at_tos_p1()); // index |
| 304 | 958 __ movptr(rdx, at_tos_p2()); // array |
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959 |
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960 Address element_address(rdx, rcx, |
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961 UseCompressedOops? Address::times_4 : Address::times_8, |
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962 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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963 |
| 0 | 964 index_check(rdx, rcx); // kills rbx |
| 965 // do array store check - check for NULL value first | |
| 304 | 966 __ testptr(rax, rax); |
| 0 | 967 __ jcc(Assembler::zero, is_null); |
| 968 | |
| 969 // Move subklass into rbx | |
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970 __ load_klass(rbx, rax); |
| 0 | 971 // Move superklass into rax |
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972 __ load_klass(rax, rdx); |
| 304 | 973 __ movptr(rax, Address(rax, |
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974 ObjArrayKlass::element_klass_offset())); |
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975 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
| 362 | 976 __ lea(rdx, element_address); |
| 0 | 977 |
| 978 // Generate subtype check. Blows rcx, rdi | |
| 979 // Superklass in rax. Subklass in rbx. | |
| 980 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 981 | |
| 982 // Come here on failure | |
| 983 // object is at TOS | |
| 984 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
| 985 | |
| 986 // Come here on success | |
| 987 __ bind(ok_is_subtype); | |
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988 |
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989 // Get the value we will store |
| 362 | 990 __ movptr(rax, at_tos()); |
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991 // Now store using the appropriate barrier |
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992 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
| 0 | 993 __ jmp(done); |
| 994 | |
| 995 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
| 996 __ bind(is_null); | |
| 997 __ profile_null_seen(rbx); | |
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998 |
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999 // Store a NULL |
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1000 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
| 0 | 1001 |
| 1002 // Pop stack arguments | |
| 1003 __ bind(done); | |
| 1506 | 1004 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
| 0 | 1005 } |
| 1006 | |
| 1007 void TemplateTable::bastore() { | |
| 1008 transition(itos, vtos); | |
| 1009 __ pop_i(rbx); | |
| 1010 __ pop_ptr(rdx); | |
| 1011 // eax: value | |
| 1012 // ebx: index | |
| 1013 // rdx: array | |
| 1014 index_check(rdx, rbx); // prefer index in ebx | |
| 1015 __ movb(Address(rdx, rbx, | |
| 1016 Address::times_1, | |
| 1017 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
| 1018 rax); | |
| 1019 } | |
| 1020 | |
| 1021 void TemplateTable::castore() { | |
| 1022 transition(itos, vtos); | |
| 1023 __ pop_i(rbx); | |
| 1024 __ pop_ptr(rdx); | |
| 1025 // eax: value | |
| 1026 // ebx: index | |
| 1027 // rdx: array | |
| 1028 index_check(rdx, rbx); // prefer index in ebx | |
| 1029 __ movw(Address(rdx, rbx, | |
| 1030 Address::times_2, | |
| 1031 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
| 1032 rax); | |
| 1033 } | |
| 1034 | |
| 1035 void TemplateTable::sastore() { | |
| 1036 castore(); | |
| 1037 } | |
| 1038 | |
| 1039 void TemplateTable::istore(int n) { | |
| 1040 transition(itos, vtos); | |
| 1041 __ movl(iaddress(n), rax); | |
| 1042 } | |
| 1043 | |
| 1044 void TemplateTable::lstore(int n) { | |
| 1045 transition(ltos, vtos); | |
| 1046 __ movq(laddress(n), rax); | |
| 1047 } | |
| 1048 | |
| 1049 void TemplateTable::fstore(int n) { | |
| 1050 transition(ftos, vtos); | |
| 1051 __ movflt(faddress(n), xmm0); | |
| 1052 } | |
| 1053 | |
| 1054 void TemplateTable::dstore(int n) { | |
| 1055 transition(dtos, vtos); | |
| 1056 __ movdbl(daddress(n), xmm0); | |
| 1057 } | |
| 1058 | |
| 1059 void TemplateTable::astore(int n) { | |
| 1060 transition(vtos, vtos); | |
| 1506 | 1061 __ pop_ptr(rax); |
| 304 | 1062 __ movptr(aaddress(n), rax); |
| 0 | 1063 } |
| 1064 | |
| 1065 void TemplateTable::pop() { | |
| 1066 transition(vtos, vtos); | |
| 1506 | 1067 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1068 } |
| 1069 | |
| 1070 void TemplateTable::pop2() { | |
| 1071 transition(vtos, vtos); | |
| 1506 | 1072 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1073 } |
| 1074 | |
| 1075 void TemplateTable::dup() { | |
| 1076 transition(vtos, vtos); | |
| 1506 | 1077 __ load_ptr(0, rax); |
| 1078 __ push_ptr(rax); | |
| 0 | 1079 // stack: ..., a, a |
| 1080 } | |
| 1081 | |
| 1082 void TemplateTable::dup_x1() { | |
| 1083 transition(vtos, vtos); | |
| 1084 // stack: ..., a, b | |
| 1506 | 1085 __ load_ptr( 0, rax); // load b |
| 1086 __ load_ptr( 1, rcx); // load a | |
| 1087 __ store_ptr(1, rax); // store b | |
| 1088 __ store_ptr(0, rcx); // store a | |
| 1089 __ push_ptr(rax); // push b | |
| 0 | 1090 // stack: ..., b, a, b |
| 1091 } | |
| 1092 | |
| 1093 void TemplateTable::dup_x2() { | |
| 1094 transition(vtos, vtos); | |
| 1095 // stack: ..., a, b, c | |
| 1506 | 1096 __ load_ptr( 0, rax); // load c |
| 1097 __ load_ptr( 2, rcx); // load a | |
| 1098 __ store_ptr(2, rax); // store c in a | |
| 1099 __ push_ptr(rax); // push c | |
| 0 | 1100 // stack: ..., c, b, c, c |
| 1506 | 1101 __ load_ptr( 2, rax); // load b |
| 1102 __ store_ptr(2, rcx); // store a in b | |
| 0 | 1103 // stack: ..., c, a, c, c |
| 1506 | 1104 __ store_ptr(1, rax); // store b in c |
| 0 | 1105 // stack: ..., c, a, b, c |
| 1106 } | |
| 1107 | |
| 1108 void TemplateTable::dup2() { | |
| 1109 transition(vtos, vtos); | |
| 1110 // stack: ..., a, b | |
| 1506 | 1111 __ load_ptr(1, rax); // load a |
| 1112 __ push_ptr(rax); // push a | |
| 1113 __ load_ptr(1, rax); // load b | |
| 1114 __ push_ptr(rax); // push b | |
| 0 | 1115 // stack: ..., a, b, a, b |
| 1116 } | |
| 1117 | |
| 1118 void TemplateTable::dup2_x1() { | |
| 1119 transition(vtos, vtos); | |
| 1120 // stack: ..., a, b, c | |
| 1506 | 1121 __ load_ptr( 0, rcx); // load c |
| 1122 __ load_ptr( 1, rax); // load b | |
| 1123 __ push_ptr(rax); // push b | |
| 1124 __ push_ptr(rcx); // push c | |
| 0 | 1125 // stack: ..., a, b, c, b, c |
| 1506 | 1126 __ store_ptr(3, rcx); // store c in b |
| 0 | 1127 // stack: ..., a, c, c, b, c |
| 1506 | 1128 __ load_ptr( 4, rcx); // load a |
| 1129 __ store_ptr(2, rcx); // store a in 2nd c | |
| 0 | 1130 // stack: ..., a, c, a, b, c |
| 1506 | 1131 __ store_ptr(4, rax); // store b in a |
| 0 | 1132 // stack: ..., b, c, a, b, c |
| 1133 } | |
| 1134 | |
| 1135 void TemplateTable::dup2_x2() { | |
| 1136 transition(vtos, vtos); | |
| 1137 // stack: ..., a, b, c, d | |
| 1506 | 1138 __ load_ptr( 0, rcx); // load d |
| 1139 __ load_ptr( 1, rax); // load c | |
| 1140 __ push_ptr(rax); // push c | |
| 1141 __ push_ptr(rcx); // push d | |
| 0 | 1142 // stack: ..., a, b, c, d, c, d |
| 1506 | 1143 __ load_ptr( 4, rax); // load b |
| 1144 __ store_ptr(2, rax); // store b in d | |
| 1145 __ store_ptr(4, rcx); // store d in b | |
| 0 | 1146 // stack: ..., a, d, c, b, c, d |
| 1506 | 1147 __ load_ptr( 5, rcx); // load a |
| 1148 __ load_ptr( 3, rax); // load c | |
| 1149 __ store_ptr(3, rcx); // store a in c | |
| 1150 __ store_ptr(5, rax); // store c in a | |
| 0 | 1151 // stack: ..., c, d, a, b, c, d |
| 1152 } | |
| 1153 | |
| 1154 void TemplateTable::swap() { | |
| 1155 transition(vtos, vtos); | |
| 1156 // stack: ..., a, b | |
| 1506 | 1157 __ load_ptr( 1, rcx); // load a |
| 1158 __ load_ptr( 0, rax); // load b | |
| 1159 __ store_ptr(0, rcx); // store a in b | |
| 1160 __ store_ptr(1, rax); // store b in a | |
| 0 | 1161 // stack: ..., b, a |
| 1162 } | |
| 1163 | |
| 1164 void TemplateTable::iop2(Operation op) { | |
| 1165 transition(itos, itos); | |
| 1166 switch (op) { | |
| 1167 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
| 1168 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
| 1169 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
| 1170 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
| 1171 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
| 1172 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
| 1173 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
| 1174 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
| 1175 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
| 1176 default : ShouldNotReachHere(); | |
| 1177 } | |
| 1178 } | |
| 1179 | |
| 1180 void TemplateTable::lop2(Operation op) { | |
| 1181 transition(ltos, ltos); | |
| 1182 switch (op) { | |
| 1506 | 1183 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
| 1184 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
| 1185 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
| 1186 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
| 1187 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
| 1188 default : ShouldNotReachHere(); | |
| 0 | 1189 } |
| 1190 } | |
| 1191 | |
| 1192 void TemplateTable::idiv() { | |
| 1193 transition(itos, itos); | |
| 1194 __ movl(rcx, rax); | |
| 1195 __ pop_i(rax); | |
| 1196 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1197 // they are not equal, one could do a normal division (no correction | |
| 1198 // needed), which may speed up this implementation for the common case. | |
| 1199 // (see also JVM spec., p.243 & p.271) | |
| 1200 __ corrected_idivl(rcx); | |
| 1201 } | |
| 1202 | |
| 1203 void TemplateTable::irem() { | |
| 1204 transition(itos, itos); | |
| 1205 __ movl(rcx, rax); | |
| 1206 __ pop_i(rax); | |
| 1207 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1208 // they are not equal, one could do a normal division (no correction | |
| 1209 // needed), which may speed up this implementation for the common case. | |
| 1210 // (see also JVM spec., p.243 & p.271) | |
| 1211 __ corrected_idivl(rcx); | |
| 1212 __ movl(rax, rdx); | |
| 1213 } | |
| 1214 | |
| 1215 void TemplateTable::lmul() { | |
| 1216 transition(ltos, ltos); | |
| 1217 __ pop_l(rdx); | |
| 1218 __ imulq(rax, rdx); | |
| 1219 } | |
| 1220 | |
| 1221 void TemplateTable::ldiv() { | |
| 1222 transition(ltos, ltos); | |
| 304 | 1223 __ mov(rcx, rax); |
| 0 | 1224 __ pop_l(rax); |
| 1225 // generate explicit div0 check | |
| 1226 __ testq(rcx, rcx); | |
| 1227 __ jump_cc(Assembler::zero, | |
| 1228 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1229 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1230 // they are not equal, one could do a normal division (no correction | |
| 1231 // needed), which may speed up this implementation for the common case. | |
| 1232 // (see also JVM spec., p.243 & p.271) | |
| 1233 __ corrected_idivq(rcx); // kills rbx | |
| 1234 } | |
| 1235 | |
| 1236 void TemplateTable::lrem() { | |
| 1237 transition(ltos, ltos); | |
| 304 | 1238 __ mov(rcx, rax); |
| 0 | 1239 __ pop_l(rax); |
| 1240 __ testq(rcx, rcx); | |
| 1241 __ jump_cc(Assembler::zero, | |
| 1242 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1243 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1244 // they are not equal, one could do a normal division (no correction | |
| 1245 // needed), which may speed up this implementation for the common case. | |
| 1246 // (see also JVM spec., p.243 & p.271) | |
| 1247 __ corrected_idivq(rcx); // kills rbx | |
| 304 | 1248 __ mov(rax, rdx); |
| 0 | 1249 } |
| 1250 | |
| 1251 void TemplateTable::lshl() { | |
| 1252 transition(itos, ltos); | |
| 1253 __ movl(rcx, rax); // get shift count | |
| 1254 __ pop_l(rax); // get shift value | |
| 1255 __ shlq(rax); | |
| 1256 } | |
| 1257 | |
| 1258 void TemplateTable::lshr() { | |
| 1259 transition(itos, ltos); | |
| 1260 __ movl(rcx, rax); // get shift count | |
| 1261 __ pop_l(rax); // get shift value | |
| 1262 __ sarq(rax); | |
| 1263 } | |
| 1264 | |
| 1265 void TemplateTable::lushr() { | |
| 1266 transition(itos, ltos); | |
| 1267 __ movl(rcx, rax); // get shift count | |
| 1268 __ pop_l(rax); // get shift value | |
| 1269 __ shrq(rax); | |
| 1270 } | |
| 1271 | |
| 1272 void TemplateTable::fop2(Operation op) { | |
| 1273 transition(ftos, ftos); | |
| 1274 switch (op) { | |
| 1275 case add: | |
| 1276 __ addss(xmm0, at_rsp()); | |
| 1506 | 1277 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1278 break; |
| 1279 case sub: | |
| 1280 __ movflt(xmm1, xmm0); | |
| 1281 __ pop_f(xmm0); | |
| 1282 __ subss(xmm0, xmm1); | |
| 1283 break; | |
| 1284 case mul: | |
| 1285 __ mulss(xmm0, at_rsp()); | |
| 1506 | 1286 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1287 break; |
| 1288 case div: | |
| 1289 __ movflt(xmm1, xmm0); | |
| 1290 __ pop_f(xmm0); | |
| 1291 __ divss(xmm0, xmm1); | |
| 1292 break; | |
| 1293 case rem: | |
| 1294 __ movflt(xmm1, xmm0); | |
| 1295 __ pop_f(xmm0); | |
| 1296 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
| 1297 break; | |
| 1298 default: | |
| 1299 ShouldNotReachHere(); | |
| 1300 break; | |
| 1301 } | |
| 1302 } | |
| 1303 | |
| 1304 void TemplateTable::dop2(Operation op) { | |
| 1305 transition(dtos, dtos); | |
| 1306 switch (op) { | |
| 1307 case add: | |
| 1308 __ addsd(xmm0, at_rsp()); | |
| 1506 | 1309 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1310 break; |
| 1311 case sub: | |
| 1312 __ movdbl(xmm1, xmm0); | |
| 1313 __ pop_d(xmm0); | |
| 1314 __ subsd(xmm0, xmm1); | |
| 1315 break; | |
| 1316 case mul: | |
| 1317 __ mulsd(xmm0, at_rsp()); | |
| 1506 | 1318 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1319 break; |
| 1320 case div: | |
| 1321 __ movdbl(xmm1, xmm0); | |
| 1322 __ pop_d(xmm0); | |
| 1323 __ divsd(xmm0, xmm1); | |
| 1324 break; | |
| 1325 case rem: | |
| 1326 __ movdbl(xmm1, xmm0); | |
| 1327 __ pop_d(xmm0); | |
| 1328 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
| 1329 break; | |
| 1330 default: | |
| 1331 ShouldNotReachHere(); | |
| 1332 break; | |
| 1333 } | |
| 1334 } | |
| 1335 | |
| 1336 void TemplateTable::ineg() { | |
| 1337 transition(itos, itos); | |
| 1338 __ negl(rax); | |
| 1339 } | |
| 1340 | |
| 1341 void TemplateTable::lneg() { | |
| 1342 transition(ltos, ltos); | |
| 1343 __ negq(rax); | |
| 1344 } | |
| 1345 | |
| 1346 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
| 1347 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
| 1348 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
| 1349 // of 128-bits operands for SSE instructions. | |
| 1350 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
| 1351 // Store the value to a 128-bits operand. | |
| 1352 operand[0] = lo; | |
| 1353 operand[1] = hi; | |
| 1354 return operand; | |
| 1355 } | |
| 1356 | |
| 1357 // Buffer for 128-bits masks used by SSE instructions. | |
| 1358 static jlong float_signflip_pool[2*2]; | |
| 1359 static jlong double_signflip_pool[2*2]; | |
| 1360 | |
| 1361 void TemplateTable::fneg() { | |
| 1362 transition(ftos, ftos); | |
| 1363 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
| 1364 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
| 1365 } | |
| 1366 | |
| 1367 void TemplateTable::dneg() { | |
| 1368 transition(dtos, dtos); | |
| 1369 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
| 1370 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
| 1371 } | |
| 1372 | |
| 1373 void TemplateTable::iinc() { | |
| 1374 transition(vtos, vtos); | |
| 1375 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
| 1376 locals_index(rbx); | |
| 1377 __ addl(iaddress(rbx), rdx); | |
| 1378 } | |
| 1379 | |
| 1380 void TemplateTable::wide_iinc() { | |
| 1381 transition(vtos, vtos); | |
| 1382 __ movl(rdx, at_bcp(4)); // get constant | |
| 1383 locals_index_wide(rbx); | |
| 1384 __ bswapl(rdx); // swap bytes & sign-extend constant | |
| 1385 __ sarl(rdx, 16); | |
| 1386 __ addl(iaddress(rbx), rdx); | |
| 1387 // Note: should probably use only one movl to get both | |
| 1388 // the index and the constant -> fix this | |
| 1389 } | |
| 1390 | |
| 1391 void TemplateTable::convert() { | |
| 1392 // Checking | |
| 1393 #ifdef ASSERT | |
| 1394 { | |
| 1395 TosState tos_in = ilgl; | |
| 1396 TosState tos_out = ilgl; | |
| 1397 switch (bytecode()) { | |
| 1398 case Bytecodes::_i2l: // fall through | |
| 1399 case Bytecodes::_i2f: // fall through | |
| 1400 case Bytecodes::_i2d: // fall through | |
| 1401 case Bytecodes::_i2b: // fall through | |
| 1402 case Bytecodes::_i2c: // fall through | |
| 1403 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1404 case Bytecodes::_l2i: // fall through | |
| 1405 case Bytecodes::_l2f: // fall through | |
| 1406 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1407 case Bytecodes::_f2i: // fall through | |
| 1408 case Bytecodes::_f2l: // fall through | |
| 1409 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1410 case Bytecodes::_d2i: // fall through | |
| 1411 case Bytecodes::_d2l: // fall through | |
| 1412 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1413 default : ShouldNotReachHere(); | |
| 1414 } | |
| 1415 switch (bytecode()) { | |
| 1416 case Bytecodes::_l2i: // fall through | |
| 1417 case Bytecodes::_f2i: // fall through | |
| 1418 case Bytecodes::_d2i: // fall through | |
| 1419 case Bytecodes::_i2b: // fall through | |
| 1420 case Bytecodes::_i2c: // fall through | |
| 1421 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1422 case Bytecodes::_i2l: // fall through | |
| 1423 case Bytecodes::_f2l: // fall through | |
| 1424 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1425 case Bytecodes::_i2f: // fall through | |
| 1426 case Bytecodes::_l2f: // fall through | |
| 1427 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1428 case Bytecodes::_i2d: // fall through | |
| 1429 case Bytecodes::_l2d: // fall through | |
| 1430 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1431 default : ShouldNotReachHere(); | |
| 1432 } | |
| 1433 transition(tos_in, tos_out); | |
| 1434 } | |
| 1435 #endif // ASSERT | |
| 1436 | |
| 1437 static const int64_t is_nan = 0x8000000000000000L; | |
| 1438 | |
| 1439 // Conversion | |
| 1440 switch (bytecode()) { | |
| 1441 case Bytecodes::_i2l: | |
| 1442 __ movslq(rax, rax); | |
| 1443 break; | |
| 1444 case Bytecodes::_i2f: | |
| 1445 __ cvtsi2ssl(xmm0, rax); | |
| 1446 break; | |
| 1447 case Bytecodes::_i2d: | |
| 1448 __ cvtsi2sdl(xmm0, rax); | |
| 1449 break; | |
| 1450 case Bytecodes::_i2b: | |
| 1451 __ movsbl(rax, rax); | |
| 1452 break; | |
| 1453 case Bytecodes::_i2c: | |
| 1454 __ movzwl(rax, rax); | |
| 1455 break; | |
| 1456 case Bytecodes::_i2s: | |
| 1457 __ movswl(rax, rax); | |
| 1458 break; | |
| 1459 case Bytecodes::_l2i: | |
| 1460 __ movl(rax, rax); | |
| 1461 break; | |
| 1462 case Bytecodes::_l2f: | |
| 1463 __ cvtsi2ssq(xmm0, rax); | |
| 1464 break; | |
| 1465 case Bytecodes::_l2d: | |
| 1466 __ cvtsi2sdq(xmm0, rax); | |
| 1467 break; | |
| 1468 case Bytecodes::_f2i: | |
| 1469 { | |
| 1470 Label L; | |
| 1471 __ cvttss2sil(rax, xmm0); | |
| 1472 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1473 __ jcc(Assembler::notEqual, L); | |
| 1474 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
| 1475 __ bind(L); | |
| 1476 } | |
| 1477 break; | |
| 1478 case Bytecodes::_f2l: | |
| 1479 { | |
| 1480 Label L; | |
| 1481 __ cvttss2siq(rax, xmm0); | |
| 1482 // NaN or overflow/underflow? | |
| 1483 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1484 __ jcc(Assembler::notEqual, L); | |
| 1485 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
| 1486 __ bind(L); | |
| 1487 } | |
| 1488 break; | |
| 1489 case Bytecodes::_f2d: | |
| 1490 __ cvtss2sd(xmm0, xmm0); | |
| 1491 break; | |
| 1492 case Bytecodes::_d2i: | |
| 1493 { | |
| 1494 Label L; | |
| 1495 __ cvttsd2sil(rax, xmm0); | |
| 1496 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1497 __ jcc(Assembler::notEqual, L); | |
| 1498 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
| 1499 __ bind(L); | |
| 1500 } | |
| 1501 break; | |
| 1502 case Bytecodes::_d2l: | |
| 1503 { | |
| 1504 Label L; | |
| 1505 __ cvttsd2siq(rax, xmm0); | |
| 1506 // NaN or overflow/underflow? | |
| 1507 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1508 __ jcc(Assembler::notEqual, L); | |
| 1509 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
| 1510 __ bind(L); | |
| 1511 } | |
| 1512 break; | |
| 1513 case Bytecodes::_d2f: | |
| 1514 __ cvtsd2ss(xmm0, xmm0); | |
| 1515 break; | |
| 1516 default: | |
| 1517 ShouldNotReachHere(); | |
| 1518 } | |
| 1519 } | |
| 1520 | |
| 1521 void TemplateTable::lcmp() { | |
| 1522 transition(ltos, itos); | |
| 1523 Label done; | |
| 1524 __ pop_l(rdx); | |
| 1525 __ cmpq(rdx, rax); | |
| 1526 __ movl(rax, -1); | |
| 1527 __ jccb(Assembler::less, done); | |
| 1528 __ setb(Assembler::notEqual, rax); | |
| 1529 __ movzbl(rax, rax); | |
| 1530 __ bind(done); | |
| 1531 } | |
| 1532 | |
| 1533 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1534 Label done; | |
| 1535 if (is_float) { | |
| 1536 // XXX get rid of pop here, use ... reg, mem32 | |
| 1537 __ pop_f(xmm1); | |
| 1538 __ ucomiss(xmm1, xmm0); | |
| 1539 } else { | |
| 1540 // XXX get rid of pop here, use ... reg, mem64 | |
| 1541 __ pop_d(xmm1); | |
| 1542 __ ucomisd(xmm1, xmm0); | |
| 1543 } | |
| 1544 if (unordered_result < 0) { | |
| 1545 __ movl(rax, -1); | |
| 1546 __ jccb(Assembler::parity, done); | |
| 1547 __ jccb(Assembler::below, done); | |
| 1548 __ setb(Assembler::notEqual, rdx); | |
| 1549 __ movzbl(rax, rdx); | |
| 1550 } else { | |
| 1551 __ movl(rax, 1); | |
| 1552 __ jccb(Assembler::parity, done); | |
| 1553 __ jccb(Assembler::above, done); | |
| 1554 __ movl(rax, 0); | |
| 1555 __ jccb(Assembler::equal, done); | |
| 1556 __ decrementl(rax); | |
| 1557 } | |
| 1558 __ bind(done); | |
| 1559 } | |
| 1560 | |
| 1561 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1562 __ get_method(rcx); // rcx holds method | |
| 1563 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
| 1564 // holds bumped taken count | |
| 1565 | |
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1566 const ByteSize be_offset = Method::backedge_counter_offset() + |
| 0 | 1567 InvocationCounter::counter_offset(); |
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1568 const ByteSize inv_offset = Method::invocation_counter_offset() + |
| 0 | 1569 InvocationCounter::counter_offset(); |
| 1570 const int method_offset = frame::interpreter_frame_method_offset * wordSize; | |
| 1571 | |
| 1572 // Load up edx with the branch displacement | |
| 1573 __ movl(rdx, at_bcp(1)); | |
| 1574 __ bswapl(rdx); | |
| 1575 | |
| 1576 if (!is_wide) { | |
| 1577 __ sarl(rdx, 16); | |
| 1578 } | |
| 304 | 1579 __ movl2ptr(rdx, rdx); |
| 0 | 1580 |
| 1581 // Handle all the JSR stuff here, then exit. | |
| 1582 // It's much shorter and cleaner than intermingling with the non-JSR | |
| 605 | 1583 // normal-branch stuff occurring below. |
| 0 | 1584 if (is_jsr) { |
| 1585 // Pre-load the next target bytecode into rbx | |
| 1586 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
| 1587 | |
| 1588 // compute return address as bci in rax | |
| 304 | 1589 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1590 in_bytes(ConstMethod::codes_offset()))); |
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1591 __ subptr(rax, Address(rcx, Method::const_offset())); |
| 0 | 1592 // Adjust the bcp in r13 by the displacement in rdx |
| 304 | 1593 __ addptr(r13, rdx); |
| 0 | 1594 // jsr returns atos that is not an oop |
| 1595 __ push_i(rax); | |
| 1596 __ dispatch_only(vtos); | |
| 1597 return; | |
| 1598 } | |
| 1599 | |
| 1600 // Normal (non-jsr) branch handling | |
| 1601 | |
| 1602 // Adjust the bcp in r13 by the displacement in rdx | |
| 304 | 1603 __ addptr(r13, rdx); |
| 0 | 1604 |
| 1605 assert(UseLoopCounter || !UseOnStackReplacement, | |
| 1606 "on-stack-replacement requires loop counters"); | |
| 1607 Label backedge_counter_overflow; | |
| 1608 Label profile_method; | |
| 1609 Label dispatch; | |
| 1610 if (UseLoopCounter) { | |
| 1611 // increment backedge counter for backward branches | |
| 1612 // rax: MDO | |
| 1613 // ebx: MDO bumped taken-count | |
| 1614 // rcx: method | |
| 1615 // rdx: target offset | |
| 1616 // r13: target bcp | |
| 1617 // r14: locals pointer | |
| 1618 __ testl(rdx, rdx); // check if forward or backward branch | |
| 1619 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
| 1783 | 1620 if (TieredCompilation) { |
| 1621 Label no_mdo; | |
| 1622 int increment = InvocationCounter::count_increment; | |
| 1623 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1624 if (ProfileInterpreter) { | |
| 1625 // Are we profiling? | |
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1626 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
| 1783 | 1627 __ testptr(rbx, rbx); |
| 1628 __ jccb(Assembler::zero, no_mdo); | |
| 1629 // Increment the MDO backedge counter | |
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1630 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1631 in_bytes(InvocationCounter::counter_offset())); |
| 1632 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
| 1633 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 1634 __ jmp(dispatch); | |
| 0 | 1635 } |
| 1783 | 1636 __ bind(no_mdo); |
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1637 // Increment backedge counter in Method* |
| 1783 | 1638 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
| 1639 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 0 | 1640 } else { |
| 1783 | 1641 // increment counter |
| 1642 __ movl(rax, Address(rcx, be_offset)); // load backedge counter | |
| 1643 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
| 1644 __ movl(Address(rcx, be_offset), rax); // store counter | |
| 1645 | |
| 1646 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
| 1647 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits | |
| 1648 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
| 1649 | |
| 1650 if (ProfileInterpreter) { | |
| 1651 // Test to see if we should create a method data oop | |
| 0 | 1652 __ cmp32(rax, |
| 1783 | 1653 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
| 1654 __ jcc(Assembler::less, dispatch); | |
| 1655 | |
| 1656 // if no method data exists, go to profile method | |
| 1657 __ test_method_data_pointer(rax, profile_method); | |
| 1658 | |
| 1659 if (UseOnStackReplacement) { | |
| 1660 // check for overflow against ebx which is the MDO taken count | |
| 1661 __ cmp32(rbx, | |
| 1662 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1663 __ jcc(Assembler::below, dispatch); | |
| 1664 | |
| 1665 // When ProfileInterpreter is on, the backedge_count comes | |
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1666 // from the MethodData*, which value does not get reset on |
| 1783 | 1667 // the call to frequency_counter_overflow(). To avoid |
| 1668 // excessive calls to the overflow routine while the method is | |
| 1669 // being compiled, add a second test to make sure the overflow | |
| 1670 // function is called only once every overflow_frequency. | |
| 1671 const int overflow_frequency = 1024; | |
| 1672 __ andl(rbx, overflow_frequency - 1); | |
| 1673 __ jcc(Assembler::zero, backedge_counter_overflow); | |
| 1674 | |
| 1675 } | |
| 1676 } else { | |
| 1677 if (UseOnStackReplacement) { | |
| 1678 // check for overflow against eax, which is the sum of the | |
| 1679 // counters | |
| 1680 __ cmp32(rax, | |
| 1681 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1682 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
| 1683 | |
| 1684 } | |
| 0 | 1685 } |
| 1686 } | |
| 1687 __ bind(dispatch); | |
| 1688 } | |
| 1689 | |
| 1690 // Pre-load the next target bytecode into rbx | |
| 1691 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
| 1692 | |
| 1693 // continue with the bytecode @ target | |
| 1694 // eax: return bci for jsr's, unused otherwise | |
| 1695 // ebx: target bytecode | |
| 1696 // r13: target bcp | |
| 1697 __ dispatch_only(vtos); | |
| 1698 | |
| 1699 if (UseLoopCounter) { | |
| 1700 if (ProfileInterpreter) { | |
| 1701 // Out-of-line code to allocate method data oop. | |
| 1702 __ bind(profile_method); | |
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1703 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
| 0 | 1704 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1705 __ set_method_data_pointer_for_bcp(); |
| 0 | 1706 __ jmp(dispatch); |
| 1707 } | |
| 1708 | |
| 1709 if (UseOnStackReplacement) { | |
| 1710 // invocation counter overflow | |
| 1711 __ bind(backedge_counter_overflow); | |
| 304 | 1712 __ negptr(rdx); |
| 1713 __ addptr(rdx, r13); // branch bcp | |
| 0 | 1714 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
| 1715 __ call_VM(noreg, | |
| 1716 CAST_FROM_FN_PTR(address, | |
| 1717 InterpreterRuntime::frequency_counter_overflow), | |
| 1718 rdx); | |
| 1719 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
| 1720 | |
| 1721 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
| 1722 // ebx: target bytecode | |
| 1723 // rdx: scratch | |
| 1724 // r14: locals pointer | |
| 1725 // r13: bcp | |
| 304 | 1726 __ testptr(rax, rax); // test result |
| 0 | 1727 __ jcc(Assembler::zero, dispatch); // no osr if null |
| 1728 // nmethod may have been invalidated (VM may block upon call_VM return) | |
| 1729 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
| 1730 __ cmpl(rcx, InvalidOSREntryBci); | |
| 1731 __ jcc(Assembler::equal, dispatch); | |
| 1732 | |
| 1733 // We have the address of an on stack replacement routine in eax | |
| 1734 // We need to prepare to execute the OSR method. First we must | |
| 1735 // migrate the locals and monitors off of the stack. | |
| 1736 | |
| 304 | 1737 __ mov(r13, rax); // save the nmethod |
| 0 | 1738 |
| 1739 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
| 1740 | |
| 1741 // eax is OSR buffer, move it to expected parameter location | |
| 304 | 1742 __ mov(j_rarg0, rax); |
| 0 | 1743 |
| 1744 // We use j_rarg definitions here so that registers don't conflict as parameter | |
| 1745 // registers change across platforms as we are in the midst of a calling | |
| 1746 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
| 1747 | |
| 1748 const Register retaddr = j_rarg2; | |
| 1749 const Register sender_sp = j_rarg1; | |
| 1750 | |
| 1751 // pop the interpreter frame | |
| 304 | 1752 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1753 __ leave(); // remove frame anchor |
| 304 | 1754 __ pop(retaddr); // get return address |
| 1755 __ mov(rsp, sender_sp); // set sp to sender sp | |
| 0 | 1756 // Ensure compiled code always sees stack at proper alignment |
| 304 | 1757 __ andptr(rsp, -(StackAlignmentInBytes)); |
| 0 | 1758 |
| 1759 // unlike x86 we need no specialized return from compiled code | |
| 1760 // to the interpreter or the call stub. | |
| 1761 | |
| 1762 // push the return address | |
| 304 | 1763 __ push(retaddr); |
| 0 | 1764 |
| 1765 // and begin the OSR nmethod | |
| 1766 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
| 1767 } | |
| 1768 } | |
| 1769 } | |
| 1770 | |
| 1771 | |
| 1772 void TemplateTable::if_0cmp(Condition cc) { | |
| 1773 transition(itos, vtos); | |
| 1774 // assume branch is more often taken than not (loops use backward branches) | |
| 1775 Label not_taken; | |
| 1776 __ testl(rax, rax); | |
| 1777 __ jcc(j_not(cc), not_taken); | |
| 1778 branch(false, false); | |
| 1779 __ bind(not_taken); | |
| 1780 __ profile_not_taken_branch(rax); | |
| 1781 } | |
| 1782 | |
| 1783 void TemplateTable::if_icmp(Condition cc) { | |
| 1784 transition(itos, vtos); | |
| 1785 // assume branch is more often taken than not (loops use backward branches) | |
| 1786 Label not_taken; | |
| 1787 __ pop_i(rdx); | |
| 1788 __ cmpl(rdx, rax); | |
| 1789 __ jcc(j_not(cc), not_taken); | |
| 1790 branch(false, false); | |
| 1791 __ bind(not_taken); | |
| 1792 __ profile_not_taken_branch(rax); | |
| 1793 } | |
| 1794 | |
| 1795 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1796 transition(atos, vtos); | |
| 1797 // assume branch is more often taken than not (loops use backward branches) | |
| 1798 Label not_taken; | |
| 304 | 1799 __ testptr(rax, rax); |
| 0 | 1800 __ jcc(j_not(cc), not_taken); |
| 1801 branch(false, false); | |
| 1802 __ bind(not_taken); | |
| 1803 __ profile_not_taken_branch(rax); | |
| 1804 } | |
| 1805 | |
| 1806 void TemplateTable::if_acmp(Condition cc) { | |
| 1807 transition(atos, vtos); | |
| 1808 // assume branch is more often taken than not (loops use backward branches) | |
| 1809 Label not_taken; | |
| 1810 __ pop_ptr(rdx); | |
| 304 | 1811 __ cmpptr(rdx, rax); |
| 0 | 1812 __ jcc(j_not(cc), not_taken); |
| 1813 branch(false, false); | |
| 1814 __ bind(not_taken); | |
| 1815 __ profile_not_taken_branch(rax); | |
| 1816 } | |
| 1817 | |
| 1818 void TemplateTable::ret() { | |
| 1819 transition(vtos, vtos); | |
| 1820 locals_index(rbx); | |
| 304 | 1821 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1822 __ profile_ret(rbx, rcx); |
| 1823 __ get_method(rax); | |
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1824 __ movptr(r13, Address(rax, Method::const_offset())); |
| 304 | 1825 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1826 ConstMethod::codes_offset())); |
| 0 | 1827 __ dispatch_next(vtos); |
| 1828 } | |
| 1829 | |
| 1830 void TemplateTable::wide_ret() { | |
| 1831 transition(vtos, vtos); | |
| 1832 locals_index_wide(rbx); | |
| 304 | 1833 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1834 __ profile_ret(rbx, rcx); |
| 1835 __ get_method(rax); | |
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1836 __ movptr(r13, Address(rax, Method::const_offset())); |
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1837 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
| 0 | 1838 __ dispatch_next(vtos); |
| 1839 } | |
| 1840 | |
| 1841 void TemplateTable::tableswitch() { | |
| 1842 Label default_case, continue_execution; | |
| 1843 transition(itos, vtos); | |
| 1844 // align r13 | |
| 304 | 1845 __ lea(rbx, at_bcp(BytesPerInt)); |
| 1846 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1847 // load lo & hi |
| 1848 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1849 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
| 1850 __ bswapl(rcx); | |
| 1851 __ bswapl(rdx); | |
| 1852 // check against lo & hi | |
| 1853 __ cmpl(rax, rcx); | |
| 1854 __ jcc(Assembler::less, default_case); | |
| 1855 __ cmpl(rax, rdx); | |
| 1856 __ jcc(Assembler::greater, default_case); | |
| 1857 // lookup dispatch offset | |
| 1858 __ subl(rax, rcx); | |
| 1859 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
| 1860 __ profile_switch_case(rax, rbx, rcx); | |
| 1861 // continue execution | |
| 1862 __ bind(continue_execution); | |
| 1863 __ bswapl(rdx); | |
| 304 | 1864 __ movl2ptr(rdx, rdx); |
| 0 | 1865 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1866 __ addptr(r13, rdx); |
| 0 | 1867 __ dispatch_only(vtos); |
| 1868 // handle default | |
| 1869 __ bind(default_case); | |
| 1870 __ profile_switch_default(rax); | |
| 1871 __ movl(rdx, Address(rbx, 0)); | |
| 1872 __ jmp(continue_execution); | |
| 1873 } | |
| 1874 | |
| 1875 void TemplateTable::lookupswitch() { | |
| 1876 transition(itos, itos); | |
| 1877 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1878 } | |
| 1879 | |
| 1880 void TemplateTable::fast_linearswitch() { | |
| 1881 transition(itos, vtos); | |
| 1882 Label loop_entry, loop, found, continue_execution; | |
| 1883 // bswap rax so we can avoid bswapping the table entries | |
| 1884 __ bswapl(rax); | |
| 1885 // align r13 | |
| 304 | 1886 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
| 1887 // this instruction (change offsets | |
| 1888 // below) | |
| 1889 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1890 // set counter |
| 1891 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1892 __ bswapl(rcx); | |
| 1893 __ jmpb(loop_entry); | |
| 1894 // table search | |
| 1895 __ bind(loop); | |
| 1896 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
| 1897 __ jcc(Assembler::equal, found); | |
| 1898 __ bind(loop_entry); | |
| 1899 __ decrementl(rcx); | |
| 1900 __ jcc(Assembler::greaterEqual, loop); | |
| 1901 // default case | |
| 1902 __ profile_switch_default(rax); | |
| 1903 __ movl(rdx, Address(rbx, 0)); | |
| 1904 __ jmp(continue_execution); | |
| 1905 // entry found -> get offset | |
| 1906 __ bind(found); | |
| 1907 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
| 1908 __ profile_switch_case(rcx, rax, rbx); | |
| 1909 // continue execution | |
| 1910 __ bind(continue_execution); | |
| 1911 __ bswapl(rdx); | |
| 304 | 1912 __ movl2ptr(rdx, rdx); |
| 0 | 1913 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1914 __ addptr(r13, rdx); |
| 0 | 1915 __ dispatch_only(vtos); |
| 1916 } | |
| 1917 | |
| 1918 void TemplateTable::fast_binaryswitch() { | |
| 1919 transition(itos, vtos); | |
| 1920 // Implementation using the following core algorithm: | |
| 1921 // | |
| 1922 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1923 // // Binary search according to "Methodik des Programmierens" by | |
| 1924 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1925 // int i = 0; | |
| 1926 // int j = n; | |
| 1927 // while (i+1 < j) { | |
| 1928 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1929 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1930 // // where a stands for the array and assuming that the (inexisting) | |
| 1931 // // element a[n] is infinitely big. | |
| 1932 // int h = (i + j) >> 1; | |
| 1933 // // i < h < j | |
| 1934 // if (key < array[h].fast_match()) { | |
| 1935 // j = h; | |
| 1936 // } else { | |
| 1937 // i = h; | |
| 1938 // } | |
| 1939 // } | |
| 1940 // // R: a[i] <= key < a[i+1] or Q | |
| 1941 // // (i.e., if key is within array, i is the correct index) | |
| 1942 // return i; | |
| 1943 // } | |
| 1944 | |
| 1945 // Register allocation | |
| 1946 const Register key = rax; // already set (tosca) | |
| 1947 const Register array = rbx; | |
| 1948 const Register i = rcx; | |
| 1949 const Register j = rdx; | |
| 1950 const Register h = rdi; | |
| 1951 const Register temp = rsi; | |
| 1952 | |
| 1953 // Find array start | |
| 304 | 1954 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
| 1955 // get rid of this | |
| 1956 // instruction (change | |
| 1957 // offsets below) | |
| 1958 __ andptr(array, -BytesPerInt); | |
| 0 | 1959 |
| 1960 // Initialize i & j | |
| 1961 __ xorl(i, i); // i = 0; | |
| 1962 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
| 1963 | |
| 1964 // Convert j into native byteordering | |
| 1965 __ bswapl(j); | |
| 1966 | |
| 1967 // And start | |
| 1968 Label entry; | |
| 1969 __ jmp(entry); | |
| 1970 | |
| 1971 // binary search loop | |
| 1972 { | |
| 1973 Label loop; | |
| 1974 __ bind(loop); | |
| 1975 // int h = (i + j) >> 1; | |
| 1976 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
| 1977 __ sarl(h, 1); // h = (i + j) >> 1; | |
| 1978 // if (key < array[h].fast_match()) { | |
| 1979 // j = h; | |
| 1980 // } else { | |
| 1981 // i = h; | |
| 1982 // } | |
| 1983 // Convert array[h].match to native byte-ordering before compare | |
| 1984 __ movl(temp, Address(array, h, Address::times_8)); | |
| 1985 __ bswapl(temp); | |
| 1986 __ cmpl(key, temp); | |
| 1987 // j = h if (key < array[h].fast_match()) | |
| 1988 __ cmovl(Assembler::less, j, h); | |
| 1989 // i = h if (key >= array[h].fast_match()) | |
| 1990 __ cmovl(Assembler::greaterEqual, i, h); | |
| 1991 // while (i+1 < j) | |
| 1992 __ bind(entry); | |
| 1993 __ leal(h, Address(i, 1)); // i+1 | |
| 1994 __ cmpl(h, j); // i+1 < j | |
| 1995 __ jcc(Assembler::less, loop); | |
| 1996 } | |
| 1997 | |
| 1998 // end of binary search, result index is i (must check again!) | |
| 1999 Label default_case; | |
| 2000 // Convert array[i].match to native byte-ordering before compare | |
| 2001 __ movl(temp, Address(array, i, Address::times_8)); | |
| 2002 __ bswapl(temp); | |
| 2003 __ cmpl(key, temp); | |
| 2004 __ jcc(Assembler::notEqual, default_case); | |
| 2005 | |
| 2006 // entry found -> j = offset | |
| 2007 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
| 2008 __ profile_switch_case(i, key, array); | |
| 2009 __ bswapl(j); | |
| 304 | 2010 __ movl2ptr(j, j); |
| 0 | 2011 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2012 __ addptr(r13, j); |
| 0 | 2013 __ dispatch_only(vtos); |
| 2014 | |
| 2015 // default case -> j = default offset | |
| 2016 __ bind(default_case); | |
| 2017 __ profile_switch_default(i); | |
| 2018 __ movl(j, Address(array, -2 * BytesPerInt)); | |
| 2019 __ bswapl(j); | |
| 304 | 2020 __ movl2ptr(j, j); |
| 0 | 2021 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2022 __ addptr(r13, j); |
| 0 | 2023 __ dispatch_only(vtos); |
| 2024 } | |
| 2025 | |
| 2026 | |
| 2027 void TemplateTable::_return(TosState state) { | |
| 2028 transition(state, state); | |
| 2029 assert(_desc->calls_vm(), | |
| 2030 "inconsistent calls_vm information"); // call in remove_activation | |
| 2031 | |
| 2032 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2033 assert(state == vtos, "only valid state"); | |
| 304 | 2034 __ movptr(c_rarg1, aaddress(0)); |
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2035 __ load_klass(rdi, c_rarg1); |
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2036 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
| 0 | 2037 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
| 2038 Label skip_register_finalizer; | |
| 2039 __ jcc(Assembler::zero, skip_register_finalizer); | |
| 2040 | |
| 2041 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
| 2042 | |
| 2043 __ bind(skip_register_finalizer); | |
| 2044 } | |
| 2045 | |
| 2046 __ remove_activation(state, r13); | |
| 2047 __ jmp(r13); | |
| 2048 } | |
| 2049 | |
| 2050 // ---------------------------------------------------------------------------- | |
| 2051 // Volatile variables demand their effects be made known to all CPU's | |
| 2052 // in order. Store buffers on most chips allow reads & writes to | |
| 2053 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
| 2054 // without some kind of memory barrier (i.e., it's not sufficient that | |
| 2055 // the interpreter does not reorder volatile references, the hardware | |
| 2056 // also must not reorder them). | |
| 2057 // | |
| 2058 // According to the new Java Memory Model (JMM): | |
| 2059 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
| 2060 // writes act as aquire & release, so: | |
| 2061 // (2) A read cannot let unrelated NON-volatile memory refs that | |
| 2062 // happen after the read float up to before the read. It's OK for | |
| 2063 // non-volatile memory refs that happen before the volatile read to | |
| 2064 // float down below it. | |
| 2065 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
| 2066 // memory refs that happen BEFORE the write float down to after the | |
| 2067 // write. It's OK for non-volatile memory refs that happen after the | |
| 2068 // volatile write to float up before it. | |
| 2069 // | |
| 2070 // We only put in barriers around volatile refs (they are expensive), | |
| 2071 // not _between_ memory refs (that would require us to track the | |
| 2072 // flavor of the previous memory refs). Requirements (2) and (3) | |
| 2073 // require some barriers before volatile stores and after volatile | |
| 2074 // loads. These nearly cover requirement (1) but miss the | |
| 2075 // volatile-store-volatile-load case. This final case is placed after | |
| 2076 // volatile-stores although it could just as well go before | |
| 2077 // volatile-loads. | |
| 2078 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
| 2079 order_constraint) { | |
| 2080 // Helper function to insert a is-volatile test and memory barrier | |
| 2081 if (os::is_MP()) { // Not needed on single CPU | |
| 2082 __ membar(order_constraint); | |
| 2083 } | |
| 2084 } | |
| 2085 | |
| 1565 | 2086 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2087 Register Rcache, | |
| 2088 Register index, | |
| 2089 size_t index_size) { | |
| 0 | 2090 const Register temp = rbx; |
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2091 assert_different_registers(Rcache, index, temp); |
| 1565 | 2092 |
| 0 | 2093 Label resolved; |
| 1565 | 2094 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2095 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2096 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
| 1108 | 2097 __ jcc(Assembler::equal, resolved); |
| 0 | 2098 |
| 2099 // resolve first time through | |
| 2100 address entry; | |
| 2101 switch (bytecode()) { | |
| 2102 case Bytecodes::_getstatic: | |
| 2103 case Bytecodes::_putstatic: | |
| 2104 case Bytecodes::_getfield: | |
| 2105 case Bytecodes::_putfield: | |
| 2106 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
| 2107 break; | |
| 2108 case Bytecodes::_invokevirtual: | |
| 2109 case Bytecodes::_invokespecial: | |
| 2110 case Bytecodes::_invokestatic: | |
| 2111 case Bytecodes::_invokeinterface: | |
| 2112 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
| 2113 break; | |
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2114 case Bytecodes::_invokehandle: |
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2115 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2116 break; |
| 1108 | 2117 case Bytecodes::_invokedynamic: |
| 2118 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
| 2119 break; | |
| 0 | 2120 default: |
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2121 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
| 0 | 2122 break; |
| 2123 } | |
| 2124 __ movl(temp, (int) bytecode()); | |
| 2125 __ call_VM(noreg, entry, temp); | |
| 2126 | |
| 2127 // Update registers with resolved info | |
| 1565 | 2128 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2129 __ bind(resolved); |
| 2130 } | |
| 2131 | |
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2132 // The cache and index registers must be set before call |
| 0 | 2133 void TemplateTable::load_field_cp_cache_entry(Register obj, |
| 2134 Register cache, | |
| 2135 Register index, | |
| 2136 Register off, | |
| 2137 Register flags, | |
| 2138 bool is_static = false) { | |
| 2139 assert_different_registers(cache, index, flags, off); | |
| 2140 | |
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2141 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2142 // Field offset |
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2143 __ movptr(off, Address(cache, index, Address::times_ptr, |
| 304 | 2144 in_bytes(cp_base_offset + |
| 2145 ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2146 // Flags |
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2147 __ movl(flags, Address(cache, index, Address::times_ptr, |
| 0 | 2148 in_bytes(cp_base_offset + |
| 2149 ConstantPoolCacheEntry::flags_offset()))); | |
| 2150 | |
| 2151 // klass overwrite register | |
| 2152 if (is_static) { | |
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2153 __ movptr(obj, Address(cache, index, Address::times_ptr, |
| 304 | 2154 in_bytes(cp_base_offset + |
| 2155 ConstantPoolCacheEntry::f1_offset()))); | |
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2156 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2157 __ movptr(obj, Address(obj, mirror_offset)); |
| 0 | 2158 } |
| 2159 } | |
| 2160 | |
| 2161 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2162 Register method, | |
| 2163 Register itable_index, | |
| 2164 Register flags, | |
| 2165 bool is_invokevirtual, | |
| 1565 | 2166 bool is_invokevfinal, /*unused*/ |
| 2167 bool is_invokedynamic) { | |
| 0 | 2168 // setup registers |
| 2169 const Register cache = rcx; | |
| 2170 const Register index = rdx; | |
| 2171 assert_different_registers(method, flags); | |
| 2172 assert_different_registers(method, cache, index); | |
| 2173 assert_different_registers(itable_index, flags); | |
| 2174 assert_different_registers(itable_index, cache, index); | |
| 2175 // determine constant pool cache field offsets | |
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2176 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2177 const int method_offset = in_bytes( |
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2178 ConstantPoolCache::base_offset() + |
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2179 ((byte_no == f2_byte) |
| 0 | 2180 ? ConstantPoolCacheEntry::f2_offset() |
| 2181 : ConstantPoolCacheEntry::f1_offset())); | |
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2182 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2183 ConstantPoolCacheEntry::flags_offset()); |
| 2184 // access constant pool cache fields | |
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2185 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2186 ConstantPoolCacheEntry::f2_offset()); |
| 2187 | |
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2188 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2189 resolve_cache_and_index(byte_no, cache, index, index_size); |
| 1565 | 2190 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2191 |
| 0 | 2192 if (itable_index != noreg) { |
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2193 // pick up itable or appendix index from f2 also: |
| 1565 | 2194 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
| 0 | 2195 } |
| 1565 | 2196 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
| 0 | 2197 } |
| 2198 | |
| 2199 // Correct values of the cache and index registers are preserved. | |
| 2200 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
| 2201 bool is_static, bool has_tos) { | |
| 2202 // do the JVMTI work here to avoid disturbing the register state below | |
| 2203 // We use c_rarg registers here because we want to use the register used in | |
| 2204 // the call to the VM | |
| 2205 if (JvmtiExport::can_post_field_access()) { | |
| 2206 // Check to see if a field access watch has been set before we | |
| 2207 // take the time to call into the VM. | |
| 2208 Label L1; | |
| 2209 assert_different_registers(cache, index, rax); | |
| 2210 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2211 __ testl(rax, rax); | |
| 2212 __ jcc(Assembler::zero, L1); | |
| 2213 | |
| 2214 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
| 2215 | |
| 2216 // cache entry pointer | |
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2217 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
| 0 | 2218 __ shll(c_rarg3, LogBytesPerWord); |
| 304 | 2219 __ addptr(c_rarg2, c_rarg3); |
| 0 | 2220 if (is_static) { |
| 2221 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
| 2222 } else { | |
| 304 | 2223 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
| 0 | 2224 __ verify_oop(c_rarg1); |
| 2225 } | |
| 2226 // c_rarg1: object pointer or NULL | |
| 2227 // c_rarg2: cache entry pointer | |
| 2228 // c_rarg3: jvalue object on the stack | |
| 2229 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 2230 InterpreterRuntime::post_field_access), | |
| 2231 c_rarg1, c_rarg2, c_rarg3); | |
| 2232 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2233 __ bind(L1); | |
| 2234 } | |
| 2235 } | |
| 2236 | |
| 2237 void TemplateTable::pop_and_check_object(Register r) { | |
| 2238 __ pop_ptr(r); | |
| 2239 __ null_check(r); // for field access must check obj. | |
| 2240 __ verify_oop(r); | |
| 2241 } | |
| 2242 | |
| 2243 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2244 transition(vtos, vtos); | |
| 2245 | |
| 2246 const Register cache = rcx; | |
| 2247 const Register index = rdx; | |
| 2248 const Register obj = c_rarg3; | |
| 2249 const Register off = rbx; | |
| 2250 const Register flags = rax; | |
| 2251 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
| 2252 | |
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2253 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2254 jvmti_post_field_access(cache, index, is_static, false); |
| 2255 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2256 | |
| 2257 if (!is_static) { | |
| 2258 // obj is on the stack | |
| 2259 pop_and_check_object(obj); | |
| 2260 } | |
| 2261 | |
| 2262 const Address field(obj, off, Address::times_1); | |
| 2263 | |
| 2264 Label Done, notByte, notInt, notShort, notChar, | |
| 2265 notLong, notFloat, notObj, notDouble; | |
| 2266 | |
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2267 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2268 // Make sure we don't need to mask edx after the above shift |
| 0 | 2269 assert(btos == 0, "change code, btos != 0"); |
| 2270 | |
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2271 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2272 __ jcc(Assembler::notZero, notByte); |
| 2273 // btos | |
| 2274 __ load_signed_byte(rax, field); | |
| 2275 __ push(btos); | |
| 2276 // Rewrite bytecode to be faster | |
| 2277 if (!is_static) { | |
| 2278 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
| 2279 } | |
| 2280 __ jmp(Done); | |
| 2281 | |
| 2282 __ bind(notByte); | |
| 2283 __ cmpl(flags, atos); | |
| 2284 __ jcc(Assembler::notEqual, notObj); | |
| 2285 // atos | |
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2286 __ load_heap_oop(rax, field); |
| 0 | 2287 __ push(atos); |
| 2288 if (!is_static) { | |
| 2289 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
| 2290 } | |
| 2291 __ jmp(Done); | |
| 2292 | |
| 2293 __ bind(notObj); | |
| 2294 __ cmpl(flags, itos); | |
| 2295 __ jcc(Assembler::notEqual, notInt); | |
| 2296 // itos | |
| 2297 __ movl(rax, field); | |
| 2298 __ push(itos); | |
| 2299 // Rewrite bytecode to be faster | |
| 2300 if (!is_static) { | |
| 2301 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
| 2302 } | |
| 2303 __ jmp(Done); | |
| 2304 | |
| 2305 __ bind(notInt); | |
| 2306 __ cmpl(flags, ctos); | |
| 2307 __ jcc(Assembler::notEqual, notChar); | |
| 2308 // ctos | |
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2309 __ load_unsigned_short(rax, field); |
| 0 | 2310 __ push(ctos); |
| 2311 // Rewrite bytecode to be faster | |
| 2312 if (!is_static) { | |
| 2313 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
| 2314 } | |
| 2315 __ jmp(Done); | |
| 2316 | |
| 2317 __ bind(notChar); | |
| 2318 __ cmpl(flags, stos); | |
| 2319 __ jcc(Assembler::notEqual, notShort); | |
| 2320 // stos | |
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2321 __ load_signed_short(rax, field); |
| 0 | 2322 __ push(stos); |
| 2323 // Rewrite bytecode to be faster | |
| 2324 if (!is_static) { | |
| 2325 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
| 2326 } | |
| 2327 __ jmp(Done); | |
| 2328 | |
| 2329 __ bind(notShort); | |
| 2330 __ cmpl(flags, ltos); | |
| 2331 __ jcc(Assembler::notEqual, notLong); | |
| 2332 // ltos | |
| 2333 __ movq(rax, field); | |
| 2334 __ push(ltos); | |
| 2335 // Rewrite bytecode to be faster | |
| 2336 if (!is_static) { | |
| 2337 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
| 2338 } | |
| 2339 __ jmp(Done); | |
| 2340 | |
| 2341 __ bind(notLong); | |
| 2342 __ cmpl(flags, ftos); | |
| 2343 __ jcc(Assembler::notEqual, notFloat); | |
| 2344 // ftos | |
| 2345 __ movflt(xmm0, field); | |
| 2346 __ push(ftos); | |
| 2347 // Rewrite bytecode to be faster | |
| 2348 if (!is_static) { | |
| 2349 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
| 2350 } | |
| 2351 __ jmp(Done); | |
| 2352 | |
| 2353 __ bind(notFloat); | |
| 2354 #ifdef ASSERT | |
| 2355 __ cmpl(flags, dtos); | |
| 2356 __ jcc(Assembler::notEqual, notDouble); | |
| 2357 #endif | |
| 2358 // dtos | |
| 2359 __ movdbl(xmm0, field); | |
| 2360 __ push(dtos); | |
| 2361 // Rewrite bytecode to be faster | |
| 2362 if (!is_static) { | |
| 2363 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
| 2364 } | |
| 2365 #ifdef ASSERT | |
| 2366 __ jmp(Done); | |
| 2367 | |
| 2368 __ bind(notDouble); | |
| 2369 __ stop("Bad state"); | |
| 2370 #endif | |
| 2371 | |
| 2372 __ bind(Done); | |
| 2373 // [jk] not needed currently | |
| 2374 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
| 2375 // Assembler::LoadStore)); | |
| 2376 } | |
| 2377 | |
| 2378 | |
| 2379 void TemplateTable::getfield(int byte_no) { | |
| 2380 getfield_or_static(byte_no, false); | |
| 2381 } | |
| 2382 | |
| 2383 void TemplateTable::getstatic(int byte_no) { | |
| 2384 getfield_or_static(byte_no, true); | |
| 2385 } | |
| 2386 | |
| 2387 // The registers cache and index expected to be set before call. | |
| 2388 // The function may destroy various registers, just not the cache and index registers. | |
| 2389 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
| 2390 transition(vtos, vtos); | |
| 2391 | |
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2392 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2393 |
| 2394 if (JvmtiExport::can_post_field_modification()) { | |
| 2395 // Check to see if a field modification watch has been set before | |
| 2396 // we take the time to call into the VM. | |
| 2397 Label L1; | |
| 2398 assert_different_registers(cache, index, rax); | |
| 2399 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2400 __ testl(rax, rax); | |
| 2401 __ jcc(Assembler::zero, L1); | |
| 2402 | |
| 2403 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
| 2404 | |
| 2405 if (is_static) { | |
| 2406 // Life is simple. Null out the object pointer. | |
| 2407 __ xorl(c_rarg1, c_rarg1); | |
| 2408 } else { | |
| 2409 // Life is harder. The stack holds the value on top, followed by | |
| 2410 // the object. We don't know the size of the value, though; it | |
| 2411 // could be one or two words depending on its type. As a result, | |
| 2412 // we must find the type to determine where the object is. | |
| 2413 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
| 2414 Address::times_8, | |
| 2415 in_bytes(cp_base_offset + | |
| 2416 ConstantPoolCacheEntry::flags_offset()))); | |
|
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2417 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2418 // Make sure we don't need to mask rcx after the above shift |
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2419 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 2420 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
| 0 | 2421 __ cmpl(c_rarg3, ltos); |
| 304 | 2422 __ cmovptr(Assembler::equal, |
| 2423 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
| 0 | 2424 __ cmpl(c_rarg3, dtos); |
| 304 | 2425 __ cmovptr(Assembler::equal, |
| 2426 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
| 0 | 2427 } |
| 2428 // cache entry pointer | |
| 304 | 2429 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
| 0 | 2430 __ shll(rscratch1, LogBytesPerWord); |
| 304 | 2431 __ addptr(c_rarg2, rscratch1); |
| 0 | 2432 // object (tos) |
| 304 | 2433 __ mov(c_rarg3, rsp); |
| 0 | 2434 // c_rarg1: object pointer set up above (NULL if static) |
| 2435 // c_rarg2: cache entry pointer | |
| 2436 // c_rarg3: jvalue object on the stack | |
| 2437 __ call_VM(noreg, | |
| 2438 CAST_FROM_FN_PTR(address, | |
| 2439 InterpreterRuntime::post_field_modification), | |
| 2440 c_rarg1, c_rarg2, c_rarg3); | |
| 2441 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2442 __ bind(L1); | |
| 2443 } | |
| 2444 } | |
| 2445 | |
| 2446 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2447 transition(vtos, vtos); | |
| 2448 | |
| 2449 const Register cache = rcx; | |
| 2450 const Register index = rdx; | |
| 2451 const Register obj = rcx; | |
| 2452 const Register off = rbx; | |
| 2453 const Register flags = rax; | |
| 2454 const Register bc = c_rarg3; | |
| 2455 | |
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2456 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2457 jvmti_post_field_mod(cache, index, is_static); |
| 2458 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2459 | |
| 2460 // [jk] not needed currently | |
| 2461 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2462 // Assembler::StoreStore)); | |
| 2463 | |
| 2464 Label notVolatile, Done; | |
| 2465 __ movl(rdx, flags); | |
|
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2466 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2467 __ andl(rdx, 0x1); |
| 2468 | |
| 2469 // field address | |
| 2470 const Address field(obj, off, Address::times_1); | |
| 2471 | |
| 2472 Label notByte, notInt, notShort, notChar, | |
| 2473 notLong, notFloat, notObj, notDouble; | |
| 2474 | |
|
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2475 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2476 |
| 2477 assert(btos == 0, "change code, btos != 0"); | |
|
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2478 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2479 __ jcc(Assembler::notZero, notByte); |
|
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2480 |
| 0 | 2481 // btos |
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2482 { |
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2483 __ pop(btos); |
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2484 if (!is_static) pop_and_check_object(obj); |
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2485 __ movb(field, rax); |
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2486 if (!is_static) { |
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2487 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2488 } |
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2489 __ jmp(Done); |
| 0 | 2490 } |
| 2491 | |
| 2492 __ bind(notByte); | |
| 2493 __ cmpl(flags, atos); | |
| 2494 __ jcc(Assembler::notEqual, notObj); | |
|
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2495 |
| 0 | 2496 // atos |
|
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2497 { |
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2498 __ pop(atos); |
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2499 if (!is_static) pop_and_check_object(obj); |
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2500 // Store into the field |
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2501 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2502 if (!is_static) { |
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2503 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2504 } |
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2505 __ jmp(Done); |
| 0 | 2506 } |
| 2507 | |
| 2508 __ bind(notObj); | |
| 2509 __ cmpl(flags, itos); | |
| 2510 __ jcc(Assembler::notEqual, notInt); | |
|
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2511 |
| 0 | 2512 // itos |
|
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2513 { |
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2514 __ pop(itos); |
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2515 if (!is_static) pop_and_check_object(obj); |
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2516 __ movl(field, rax); |
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2517 if (!is_static) { |
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2518 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2519 } |
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2520 __ jmp(Done); |
| 0 | 2521 } |
| 2522 | |
| 2523 __ bind(notInt); | |
| 2524 __ cmpl(flags, ctos); | |
| 2525 __ jcc(Assembler::notEqual, notChar); | |
|
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2526 |
| 0 | 2527 // ctos |
|
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2528 { |
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2529 __ pop(ctos); |
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2530 if (!is_static) pop_and_check_object(obj); |
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2531 __ movw(field, rax); |
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2532 if (!is_static) { |
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2533 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2534 } |
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2535 __ jmp(Done); |
| 0 | 2536 } |
| 2537 | |
| 2538 __ bind(notChar); | |
| 2539 __ cmpl(flags, stos); | |
| 2540 __ jcc(Assembler::notEqual, notShort); | |
|
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2541 |
| 0 | 2542 // stos |
|
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2543 { |
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2544 __ pop(stos); |
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2545 if (!is_static) pop_and_check_object(obj); |
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2546 __ movw(field, rax); |
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2547 if (!is_static) { |
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2548 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
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2549 } |
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2550 __ jmp(Done); |
| 0 | 2551 } |
| 2552 | |
| 2553 __ bind(notShort); | |
| 2554 __ cmpl(flags, ltos); | |
| 2555 __ jcc(Assembler::notEqual, notLong); | |
|
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2556 |
| 0 | 2557 // ltos |
|
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2558 { |
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2559 __ pop(ltos); |
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2560 if (!is_static) pop_and_check_object(obj); |
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2561 __ movq(field, rax); |
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2562 if (!is_static) { |
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2563 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
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2564 } |
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2565 __ jmp(Done); |
| 0 | 2566 } |
| 2567 | |
| 2568 __ bind(notLong); | |
| 2569 __ cmpl(flags, ftos); | |
| 2570 __ jcc(Assembler::notEqual, notFloat); | |
|
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2571 |
| 0 | 2572 // ftos |
|
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2573 { |
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2574 __ pop(ftos); |
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2575 if (!is_static) pop_and_check_object(obj); |
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2576 __ movflt(field, xmm0); |
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2577 if (!is_static) { |
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2578 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
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2579 } |
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2580 __ jmp(Done); |
| 0 | 2581 } |
| 2582 | |
| 2583 __ bind(notFloat); | |
| 2584 #ifdef ASSERT | |
| 2585 __ cmpl(flags, dtos); | |
| 2586 __ jcc(Assembler::notEqual, notDouble); | |
| 2587 #endif | |
|
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2588 |
| 0 | 2589 // dtos |
|
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2590 { |
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2591 __ pop(dtos); |
|
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2592 if (!is_static) pop_and_check_object(obj); |
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2593 __ movdbl(field, xmm0); |
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2594 if (!is_static) { |
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2595 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
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|
2596 } |
| 0 | 2597 } |
| 2598 | |
| 2599 #ifdef ASSERT | |
| 2600 __ jmp(Done); | |
| 2601 | |
| 2602 __ bind(notDouble); | |
| 2603 __ stop("Bad state"); | |
| 2604 #endif | |
| 2605 | |
| 2606 __ bind(Done); | |
|
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2607 |
| 0 | 2608 // Check for volatile store |
| 2609 __ testl(rdx, rdx); | |
| 2610 __ jcc(Assembler::zero, notVolatile); | |
| 2611 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2612 Assembler::StoreStore)); | |
| 2613 __ bind(notVolatile); | |
| 2614 } | |
| 2615 | |
| 2616 void TemplateTable::putfield(int byte_no) { | |
| 2617 putfield_or_static(byte_no, false); | |
| 2618 } | |
| 2619 | |
| 2620 void TemplateTable::putstatic(int byte_no) { | |
| 2621 putfield_or_static(byte_no, true); | |
| 2622 } | |
| 2623 | |
| 2624 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2625 if (JvmtiExport::can_post_field_modification()) { | |
| 2626 // Check to see if a field modification watch has been set before | |
| 2627 // we take the time to call into the VM. | |
| 2628 Label L2; | |
| 2629 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2630 __ testl(c_rarg3, c_rarg3); | |
| 2631 __ jcc(Assembler::zero, L2); | |
| 2632 __ pop_ptr(rbx); // copy the object pointer from tos | |
| 2633 __ verify_oop(rbx); | |
| 2634 __ push_ptr(rbx); // put the object pointer back on tos | |
|
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2635 // Save tos values before call_VM() clobbers them. Since we have |
|
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2636 // to do it for every data type, we use the saved values as the |
|
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|
2637 // jvalue object. |
| 0 | 2638 switch (bytecode()) { // load values into the jvalue object |
|
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2639 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
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2640 case Bytecodes::_fast_bputfield: // fall through |
| 0 | 2641 case Bytecodes::_fast_sputfield: // fall through |
|
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2642 case Bytecodes::_fast_cputfield: // fall through |
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2643 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
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2644 case Bytecodes::_fast_dputfield: __ push_d(); break; |
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2645 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2646 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
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2647 |
| 0 | 2648 default: |
| 2649 ShouldNotReachHere(); | |
| 2650 } | |
|
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2651 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
| 0 | 2652 // access constant pool cache entry |
| 2653 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
| 2654 __ verify_oop(rbx); | |
| 2655 // rbx: object pointer copied above | |
| 2656 // c_rarg2: cache entry pointer | |
| 2657 // c_rarg3: jvalue object on the stack | |
| 2658 __ call_VM(noreg, | |
| 2659 CAST_FROM_FN_PTR(address, | |
| 2660 InterpreterRuntime::post_field_modification), | |
| 2661 rbx, c_rarg2, c_rarg3); | |
|
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2662 |
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|
2663 switch (bytecode()) { // restore tos values |
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2664 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
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2665 case Bytecodes::_fast_bputfield: // fall through |
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2666 case Bytecodes::_fast_sputfield: // fall through |
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2667 case Bytecodes::_fast_cputfield: // fall through |
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2668 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
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2669 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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2670 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2671 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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|
2672 } |
| 0 | 2673 __ bind(L2); |
| 2674 } | |
| 2675 } | |
| 2676 | |
| 2677 void TemplateTable::fast_storefield(TosState state) { | |
| 2678 transition(state, vtos); | |
| 2679 | |
|
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2680 ByteSize base = ConstantPoolCache::base_offset(); |
| 0 | 2681 |
| 2682 jvmti_post_fast_field_mod(); | |
| 2683 | |
| 2684 // access constant pool cache | |
| 2685 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2686 | |
| 2687 // test for volatile with rdx | |
| 2688 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
| 2689 in_bytes(base + | |
| 2690 ConstantPoolCacheEntry::flags_offset()))); | |
| 2691 | |
| 2692 // replace index with field offset from cache entry | |
| 304 | 2693 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
| 2694 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2695 |
| 2696 // [jk] not needed currently | |
| 2697 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2698 // Assembler::StoreStore)); | |
| 2699 | |
| 2700 Label notVolatile; | |
|
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2701 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2702 __ andl(rdx, 0x1); |
| 2703 | |
| 2704 // Get object from stack | |
| 2705 pop_and_check_object(rcx); | |
| 2706 | |
| 2707 // field address | |
| 2708 const Address field(rcx, rbx, Address::times_1); | |
| 2709 | |
| 2710 // access field | |
| 2711 switch (bytecode()) { | |
| 2712 case Bytecodes::_fast_aputfield: | |
|
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|
2713 do_oop_store(_masm, field, rax, _bs->kind(), false); |
| 0 | 2714 break; |
| 2715 case Bytecodes::_fast_lputfield: | |
| 2716 __ movq(field, rax); | |
| 2717 break; | |
| 2718 case Bytecodes::_fast_iputfield: | |
| 2719 __ movl(field, rax); | |
| 2720 break; | |
| 2721 case Bytecodes::_fast_bputfield: | |
| 2722 __ movb(field, rax); | |
| 2723 break; | |
| 2724 case Bytecodes::_fast_sputfield: | |
| 2725 // fall through | |
| 2726 case Bytecodes::_fast_cputfield: | |
| 2727 __ movw(field, rax); | |
| 2728 break; | |
| 2729 case Bytecodes::_fast_fputfield: | |
| 2730 __ movflt(field, xmm0); | |
| 2731 break; | |
| 2732 case Bytecodes::_fast_dputfield: | |
| 2733 __ movdbl(field, xmm0); | |
| 2734 break; | |
| 2735 default: | |
| 2736 ShouldNotReachHere(); | |
| 2737 } | |
| 2738 | |
| 2739 // Check for volatile store | |
| 2740 __ testl(rdx, rdx); | |
| 2741 __ jcc(Assembler::zero, notVolatile); | |
| 2742 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2743 Assembler::StoreStore)); | |
| 2744 __ bind(notVolatile); | |
| 2745 } | |
| 2746 | |
| 2747 | |
| 2748 void TemplateTable::fast_accessfield(TosState state) { | |
| 2749 transition(atos, state); | |
| 2750 | |
| 2751 // Do the JVMTI work here to avoid disturbing the register state below | |
| 2752 if (JvmtiExport::can_post_field_access()) { | |
| 2753 // Check to see if a field access watch has been set before we | |
| 2754 // take the time to call into the VM. | |
| 2755 Label L1; | |
| 2756 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2757 __ testl(rcx, rcx); | |
| 2758 __ jcc(Assembler::zero, L1); | |
| 2759 // access constant pool cache entry | |
| 2760 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
|
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|
2761 __ verify_oop(rax); |
|
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|
2762 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
| 304 | 2763 __ mov(c_rarg1, rax); |
| 0 | 2764 // c_rarg1: object pointer copied above |
| 2765 // c_rarg2: cache entry pointer | |
| 2766 __ call_VM(noreg, | |
| 2767 CAST_FROM_FN_PTR(address, | |
| 2768 InterpreterRuntime::post_field_access), | |
| 2769 c_rarg1, c_rarg2); | |
|
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|
2770 __ pop_ptr(rax); // restore object pointer |
| 0 | 2771 __ bind(L1); |
| 2772 } | |
| 2773 | |
| 2774 // access constant pool cache | |
| 2775 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2776 // replace index with field offset from cache entry | |
| 2777 // [jk] not needed currently | |
| 2778 // if (os::is_MP()) { | |
| 2779 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
|
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2780 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2781 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2782 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2783 // __ andl(rdx, 0x1); |
| 2784 // } | |
| 304 | 2785 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
|
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|
2786 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2787 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2788 |
| 2789 // rax: object | |
| 2790 __ verify_oop(rax); | |
| 2791 __ null_check(rax); | |
| 2792 Address field(rax, rbx, Address::times_1); | |
| 2793 | |
| 2794 // access field | |
| 2795 switch (bytecode()) { | |
| 2796 case Bytecodes::_fast_agetfield: | |
|
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2797 __ load_heap_oop(rax, field); |
| 0 | 2798 __ verify_oop(rax); |
| 2799 break; | |
| 2800 case Bytecodes::_fast_lgetfield: | |
| 2801 __ movq(rax, field); | |
| 2802 break; | |
| 2803 case Bytecodes::_fast_igetfield: | |
| 2804 __ movl(rax, field); | |
| 2805 break; | |
| 2806 case Bytecodes::_fast_bgetfield: | |
| 2807 __ movsbl(rax, field); | |
| 2808 break; | |
| 2809 case Bytecodes::_fast_sgetfield: | |
|
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|
2810 __ load_signed_short(rax, field); |
| 0 | 2811 break; |
| 2812 case Bytecodes::_fast_cgetfield: | |
|
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2813 __ load_unsigned_short(rax, field); |
| 0 | 2814 break; |
| 2815 case Bytecodes::_fast_fgetfield: | |
| 2816 __ movflt(xmm0, field); | |
| 2817 break; | |
| 2818 case Bytecodes::_fast_dgetfield: | |
| 2819 __ movdbl(xmm0, field); | |
| 2820 break; | |
| 2821 default: | |
| 2822 ShouldNotReachHere(); | |
| 2823 } | |
| 2824 // [jk] not needed currently | |
| 2825 // if (os::is_MP()) { | |
| 2826 // Label notVolatile; | |
| 2827 // __ testl(rdx, rdx); | |
| 2828 // __ jcc(Assembler::zero, notVolatile); | |
| 2829 // __ membar(Assembler::LoadLoad); | |
| 2830 // __ bind(notVolatile); | |
| 2831 //}; | |
| 2832 } | |
| 2833 | |
| 2834 void TemplateTable::fast_xaccess(TosState state) { | |
| 2835 transition(vtos, state); | |
| 2836 | |
| 2837 // get receiver | |
| 304 | 2838 __ movptr(rax, aaddress(0)); |
| 0 | 2839 // access constant pool cache |
| 2840 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
| 304 | 2841 __ movptr(rbx, |
| 2842 Address(rcx, rdx, Address::times_8, | |
|
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2843 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2844 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2845 // make sure exception is reported in correct bcp range (getfield is |
| 2846 // next instruction) | |
| 304 | 2847 __ increment(r13); |
| 0 | 2848 __ null_check(rax); |
| 2849 switch (state) { | |
| 2850 case itos: | |
| 2851 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
| 2852 break; | |
| 2853 case atos: | |
|
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2854 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
| 0 | 2855 __ verify_oop(rax); |
| 2856 break; | |
| 2857 case ftos: | |
| 2858 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
| 2859 break; | |
| 2860 default: | |
| 2861 ShouldNotReachHere(); | |
| 2862 } | |
| 2863 | |
| 2864 // [jk] not needed currently | |
| 2865 // if (os::is_MP()) { | |
| 2866 // Label notVolatile; | |
| 2867 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
|
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2868 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2869 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2870 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2871 // __ testl(rdx, 0x1); |
| 2872 // __ jcc(Assembler::zero, notVolatile); | |
| 2873 // __ membar(Assembler::LoadLoad); | |
| 2874 // __ bind(notVolatile); | |
| 2875 // } | |
| 2876 | |
| 304 | 2877 __ decrement(r13); |
| 0 | 2878 } |
| 2879 | |
| 2880 | |
| 2881 | |
| 2882 //----------------------------------------------------------------------------- | |
| 2883 // Calls | |
| 2884 | |
| 2885 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2886 // implemented elsewhere | |
| 2887 ShouldNotReachHere(); | |
| 2888 } | |
| 2889 | |
|
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2890 void TemplateTable::prepare_invoke(int byte_no, |
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2891 Register method, // linked method (or i-klass) |
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2892 Register index, // itable index, MethodType, etc. |
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2893 Register recv, // if caller wants to see it |
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2894 Register flags // if caller wants to test it |
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2895 ) { |
| 0 | 2896 // determine flags |
|
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2897 const Bytecodes::Code code = bytecode(); |
| 0 | 2898 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
| 1108 | 2899 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
|
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2900 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
| 0 | 2901 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
| 2902 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
|
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2903 const bool load_receiver = (recv != noreg); |
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2904 const bool save_flags = (flags != noreg); |
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2905 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
|
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2906 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
|
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2907 assert(flags == noreg || flags == rdx, ""); |
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2908 assert(recv == noreg || recv == rcx, ""); |
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2909 |
| 0 | 2910 // setup registers & access constant pool cache |
|
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2911 if (recv == noreg) recv = rcx; |
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2912 if (flags == noreg) flags = rdx; |
| 0 | 2913 assert_different_registers(method, index, recv, flags); |
| 2914 | |
| 2915 // save 'interpreter return address' | |
| 2916 __ save_bcp(); | |
| 2917 | |
| 1565 | 2918 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
| 0 | 2919 |
|
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2920 // maybe push appendix to arguments (just before return address) |
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2921 if (is_invokedynamic || is_invokehandle) { |
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2922 Label L_no_push; |
|
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2923 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
|
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2924 __ jcc(Assembler::zero, L_no_push); |
|
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2925 // Push the appendix as a trailing parameter. |
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2926 // This must be done before we get the receiver, |
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2927 // since the parameter_size includes it. |
|
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2928 __ push(rbx); |
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2929 __ mov(rbx, index); |
|
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2930 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2931 __ load_resolved_reference_at_index(index, rbx); |
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2932 __ pop(rbx); |
|
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2933 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2934 __ bind(L_no_push); |
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2935 } |
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2936 |
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2937 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2938 // Note: no return address pushed yet |
| 0 | 2939 if (load_receiver) { |
| 2940 __ movl(recv, flags); | |
|
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2941 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2942 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2943 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2944 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
| 1304 | 2945 __ movptr(recv, recv_addr); |
| 2946 __ verify_oop(recv); | |
| 0 | 2947 } |
| 2948 | |
| 2949 if (save_flags) { | |
| 2950 __ movl(r13, flags); | |
| 2951 } | |
| 2952 | |
| 2953 // compute return type | |
|
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2954 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
|
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2955 // Make sure we don't need to mask flags after the above shift |
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2956 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2957 // load return address |
| 2958 { | |
|
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2959 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
|
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2960 (address)Interpreter::return_5_addrs_by_index_table() : |
|
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|
2961 (address)Interpreter::return_3_addrs_by_index_table(); |
| 1108 | 2962 ExternalAddress table(table_addr); |
| 2963 __ lea(rscratch1, table); | |
| 2964 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
| 0 | 2965 } |
| 2966 | |
| 2967 // push return address | |
| 304 | 2968 __ push(flags); |
| 0 | 2969 |
|
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2970 // Restore flags value from the constant pool cache, and restore rsi |
| 0 | 2971 // for later null checks. r13 is the bytecode pointer |
| 2972 if (save_flags) { | |
| 2973 __ movl(flags, r13); | |
| 2974 __ restore_bcp(); | |
| 2975 } | |
| 2976 } | |
| 2977 | |
| 2978 | |
| 2979 void TemplateTable::invokevirtual_helper(Register index, | |
| 2980 Register recv, | |
| 2981 Register flags) { | |
| 1783 | 2982 // Uses temporary registers rax, rdx |
| 2983 assert_different_registers(index, recv, rax, rdx); | |
|
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2984 assert(index == rbx, ""); |
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|
2985 assert(recv == rcx, ""); |
| 0 | 2986 |
| 2987 // Test for an invoke of a final method | |
| 2988 Label notFinal; | |
| 2989 __ movl(rax, flags); | |
|
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2990 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
| 0 | 2991 __ jcc(Assembler::zero, notFinal); |
| 2992 | |
| 2993 const Register method = index; // method must be rbx | |
| 2994 assert(method == rbx, | |
|
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2995 "Method* must be rbx for interpreter calling convention"); |
| 0 | 2996 |
| 2997 // do the call - the index is actually the method to call | |
|
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2998 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
| 0 | 2999 |
| 3000 // It's final, need a null check here! | |
| 3001 __ null_check(recv); | |
| 3002 | |
| 3003 // profile this call | |
| 3004 __ profile_final_call(rax); | |
| 3005 | |
| 3006 __ jump_from_interpreted(method, rax); | |
| 3007 | |
| 3008 __ bind(notFinal); | |
| 3009 | |
| 3010 // get receiver klass | |
| 3011 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
|
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|
3012 __ load_klass(rax, recv); |
| 0 | 3013 |
| 3014 // profile this call | |
| 3015 __ profile_virtual_call(rax, r14, rdx); | |
| 3016 | |
|
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3017 // get target Method* & entry point |
|
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|
3018 __ lookup_virtual_method(rax, index, method); |
| 0 | 3019 __ jump_from_interpreted(method, rdx); |
| 3020 } | |
| 3021 | |
| 3022 | |
| 3023 void TemplateTable::invokevirtual(int byte_no) { | |
| 3024 transition(vtos, vtos); | |
| 1565 | 3025 assert(byte_no == f2_byte, "use this argument"); |
|
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3026 prepare_invoke(byte_no, |
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3027 rbx, // method or vtable index |
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3028 noreg, // unused itable index |
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|
3029 rcx, rdx); // recv, flags |
| 0 | 3030 |
| 3031 // rbx: index | |
| 3032 // rcx: receiver | |
| 3033 // rdx: flags | |
| 3034 | |
| 3035 invokevirtual_helper(rbx, rcx, rdx); | |
| 3036 } | |
| 3037 | |
| 3038 | |
| 3039 void TemplateTable::invokespecial(int byte_no) { | |
| 3040 transition(vtos, vtos); | |
| 1565 | 3041 assert(byte_no == f1_byte, "use this argument"); |
|
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3042 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
|
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|
3043 rcx); // get receiver also for null check |
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3044 __ verify_oop(rcx); |
|
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3045 __ null_check(rcx); |
| 0 | 3046 // do the call |
| 3047 __ profile_call(rax); | |
| 3048 __ jump_from_interpreted(rbx, rax); | |
| 3049 } | |
| 3050 | |
| 3051 | |
| 3052 void TemplateTable::invokestatic(int byte_no) { | |
| 3053 transition(vtos, vtos); | |
| 1565 | 3054 assert(byte_no == f1_byte, "use this argument"); |
|
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3055 prepare_invoke(byte_no, rbx); // get f1 Method* |
| 0 | 3056 // do the call |
| 3057 __ profile_call(rax); | |
| 3058 __ jump_from_interpreted(rbx, rax); | |
| 3059 } | |
| 3060 | |
| 3061 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3062 transition(vtos, vtos); | |
| 1565 | 3063 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3064 __ stop("fast_invokevfinal not used on amd64"); |
| 3065 } | |
| 3066 | |
| 3067 void TemplateTable::invokeinterface(int byte_no) { | |
| 3068 transition(vtos, vtos); | |
| 1565 | 3069 assert(byte_no == f1_byte, "use this argument"); |
|
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3070 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
|
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|
3071 rcx, rdx); // recv, flags |
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|
3072 |
|
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|
3073 // rax: interface klass (from f1) |
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|
3074 // rbx: itable index (from f2) |
| 0 | 3075 // rcx: receiver |
| 3076 // rdx: flags | |
| 3077 | |
| 3078 // Special case of invokeinterface called for virtual method of | |
| 3079 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3080 // This code isn't produced by javac, but could be produced by | |
| 3081 // another compliant java compiler. | |
| 3082 Label notMethod; | |
| 3083 __ movl(r14, rdx); | |
|
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|
3084 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
| 0 | 3085 __ jcc(Assembler::zero, notMethod); |
| 3086 | |
| 3087 invokevirtual_helper(rbx, rcx, rdx); | |
| 3088 __ bind(notMethod); | |
| 3089 | |
| 3090 // Get receiver klass into rdx - also a null check | |
|
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|
3091 __ restore_locals(); // restore r14 |
|
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|
3092 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
|
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|
3093 __ load_klass(rdx, rcx); |
| 0 | 3094 |
| 3095 // profile this call | |
| 3096 __ profile_virtual_call(rdx, r13, r14); | |
| 3097 | |
|
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|
3098 Label no_such_interface, no_such_method; |
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|
3099 |
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|
3100 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
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3101 rdx, rax, rbx, |
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|
3102 // outputs: method, scan temp. reg |
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|
3103 rbx, r13, |
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|
3104 no_such_interface); |
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|
3105 |
|
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3106 // rbx: Method* to call |
|
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|
3107 // rcx: receiver |
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3108 // Check for abstract method error |
|
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|
3109 // Note: This should be done more efficiently via a throw_abstract_method_error |
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3110 // interpreter entry point and a conditional jump to it in case of a null |
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|
3111 // method. |
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|
3112 __ testptr(rbx, rbx); |
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3113 __ jcc(Assembler::zero, no_such_method); |
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|
3114 |
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|
3115 // do the call |
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3116 // rcx: receiver |
|
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3117 // rbx,: Method* |
|
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3118 __ jump_from_interpreted(rbx, rdx); |
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|
3119 __ should_not_reach_here(); |
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|
3120 |
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|
3121 // exception handling code follows... |
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|
3122 // note: must restore interpreter registers to canonical |
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|
3123 // state for exception handling to work correctly! |
|
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|
3124 |
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|
3125 __ bind(no_such_method); |
| 0 | 3126 // throw exception |
|
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|
3127 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3128 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3129 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3130 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3131 // the call_VM checks for exception, so we should never return here. |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3132 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3133 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3134 __ bind(no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3135 // throw exception |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3136 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3137 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3138 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
| 0 | 3139 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
| 3140 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3141 // the call_VM checks for exception, so we should never return here. | |
| 3142 __ should_not_reach_here(); | |
| 3143 } | |
| 3144 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3145 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3146 void TemplateTable::invokehandle(int byte_no) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3147 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3148 assert(byte_no == f1_byte, "use this argument"); |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3149 const Register rbx_method = rbx; |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
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6740
diff
changeset
|
3150 const Register rax_mtype = rax; |
|
6266
1d7922586cf6
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5995
diff
changeset
|
3151 const Register rcx_recv = rcx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3152 const Register rdx_flags = rdx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3153 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3154 if (!EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3155 // rewriter does not generate this bytecode |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3156 __ should_not_reach_here(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3157 return; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3158 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3159 |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3160 prepare_invoke(byte_no, rbx_method, rax_mtype, rcx_recv); |
|
6740
75f33eecc1b3
7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents:
6725
diff
changeset
|
3161 __ verify_method_ptr(rbx_method); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3162 __ verify_oop(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3163 __ null_check(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3164 |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3165 // rax: MethodType object (from cpool->resolved_references[f1], if necessary) |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3166 // rbx: MH.invokeExact_MT method (from f2) |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3167 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3168 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3169 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3170 // FIXME: profile the LambdaForm also |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3171 __ profile_final_call(rax); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3172 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3173 __ jump_from_interpreted(rbx_method, rdx); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3174 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3175 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3176 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3177 void TemplateTable::invokedynamic(int byte_no) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3178 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3179 assert(byte_no == f1_byte, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3180 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3181 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3182 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3183 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3184 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3185 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3186 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3187 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3188 __ should_not_reach_here(); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3189 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3190 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3191 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3192 const Register rbx_method = rbx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3193 const Register rax_callsite = rax; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3194 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3195 prepare_invoke(byte_no, rbx_method, rax_callsite); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3196 |
|
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
|
3197 // rax: CallSite object (from cpool->resolved_references[f1]) |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3198 // rbx: MH.linkToCallSite method (from f2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3199 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3200 // Note: rax_callsite is already pushed by prepare_invoke |
| 1846 | 3201 |
|
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3202 // %%% should make a type profile for any invokedynamic that takes a ref argument |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3203 // profile this call |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3204 __ profile_call(r13); |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3205 |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3206 __ verify_oop(rax_callsite); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3207 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3208 __ jump_from_interpreted(rbx_method, rdx); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3209 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3210 |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3211 |
| 0 | 3212 //----------------------------------------------------------------------------- |
| 3213 // Allocation | |
| 3214 | |
| 3215 void TemplateTable::_new() { | |
| 3216 transition(vtos, atos); | |
| 3217 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3218 Label slow_case; | |
| 3219 Label done; | |
| 3220 Label initialize_header; | |
| 3221 Label initialize_object; // including clearing the fields | |
| 3222 Label allocate_shared; | |
| 3223 | |
| 3224 __ get_cpool_and_tags(rsi, rax); | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3225 // Make sure the class we're about to instantiate has been resolved. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3226 // This is done before loading InstanceKlass to be consistent with the order |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3227 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3228 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 3229 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
| 3230 JVM_CONSTANT_Class); | |
| 3231 __ jcc(Assembler::notEqual, slow_case); | |
| 3232 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3233 // get InstanceKlass |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3234 __ movptr(rsi, Address(rsi, rdx, |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3235 Address::times_8, sizeof(ConstantPool))); |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3236 |
| 0 | 3237 // make sure klass is initialized & doesn't have finalizer |
| 3238 // make sure klass is fully initialized | |
|
4739
52b5d32fbfaf
7117052: instanceKlass::_init_state can be u1 type
coleenp
parents:
3852
diff
changeset
|
3239 __ cmpb(Address(rsi, |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3240 InstanceKlass::init_state_offset()), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3241 InstanceKlass::fully_initialized); |
| 0 | 3242 __ jcc(Assembler::notEqual, slow_case); |
| 3243 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3244 // get instance_size in InstanceKlass (scaled to a count of bytes) |
| 0 | 3245 __ movl(rdx, |
| 3246 Address(rsi, | |
|
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3852
diff
changeset
|
3247 Klass::layout_helper_offset())); |
| 0 | 3248 // test to see if it has a finalizer or is malformed in some way |
| 3249 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
| 3250 __ jcc(Assembler::notZero, slow_case); | |
| 3251 | |
| 3252 // Allocate the instance | |
| 3253 // 1) Try to allocate in the TLAB | |
| 3254 // 2) if fail and the object is large allocate in the shared Eden | |
| 3255 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3256 // (creates a new TLAB, etc.) | |
| 3257 | |
| 3258 const bool allow_shared_alloc = | |
| 3259 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3260 | |
| 3261 if (UseTLAB) { | |
| 304 | 3262 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
| 3263 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3264 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
| 0 | 3265 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
| 304 | 3266 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
| 0 | 3267 if (ZeroTLAB) { |
| 3268 // the fields have been already cleared | |
| 3269 __ jmp(initialize_header); | |
| 3270 } else { | |
| 3271 // initialize both the header and fields | |
| 3272 __ jmp(initialize_object); | |
| 3273 } | |
| 3274 } | |
| 3275 | |
| 3276 // Allocation in the shared Eden, if allowed. | |
| 3277 // | |
| 3278 // rdx: instance size in bytes | |
| 3279 if (allow_shared_alloc) { | |
| 3280 __ bind(allocate_shared); | |
| 3281 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3282 ExternalAddress top((address)Universe::heap()->top_addr()); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3283 ExternalAddress end((address)Universe::heap()->end_addr()); |
|
37f87013dfd8
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parents:
113
diff
changeset
|
3284 |
| 0 | 3285 const Register RtopAddr = rscratch1; |
| 3286 const Register RendAddr = rscratch2; | |
| 3287 | |
| 3288 __ lea(RtopAddr, top); | |
| 3289 __ lea(RendAddr, end); | |
| 304 | 3290 __ movptr(rax, Address(RtopAddr, 0)); |
| 0 | 3291 |
| 3292 // For retries rax gets set by cmpxchgq | |
| 3293 Label retry; | |
| 3294 __ bind(retry); | |
| 304 | 3295 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
| 3296 __ cmpptr(rbx, Address(RendAddr, 0)); | |
| 0 | 3297 __ jcc(Assembler::above, slow_case); |
| 3298 | |
| 3299 // Compare rax with the top addr, and if still equal, store the new | |
| 3300 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
| 3301 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
| 3302 // | |
| 3303 // rax: object begin | |
| 3304 // rbx: object end | |
| 3305 // rdx: instance size in bytes | |
| 3306 if (os::is_MP()) { | |
| 3307 __ lock(); | |
| 3308 } | |
| 304 | 3309 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
| 0 | 3310 |
| 3311 // if someone beat us on the allocation, try again, otherwise continue | |
| 3312 __ jcc(Assembler::notEqual, retry); | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1976
diff
changeset
|
3313 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1976
diff
changeset
|
3314 __ incr_allocated_bytes(r15_thread, rdx, 0); |
| 0 | 3315 } |
| 3316 | |
| 3317 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3318 // The object is initialized before the header. If the object size is | |
| 3319 // zero, go directly to the header initialization. | |
| 3320 __ bind(initialize_object); | |
| 3321 __ decrementl(rdx, sizeof(oopDesc)); | |
| 3322 __ jcc(Assembler::zero, initialize_header); | |
| 3323 | |
| 3324 // Initialize object fields | |
| 3325 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
| 3326 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
| 3327 { | |
| 3328 Label loop; | |
| 3329 __ bind(loop); | |
| 3330 __ movq(Address(rax, rdx, Address::times_8, | |
| 3331 sizeof(oopDesc) - oopSize), | |
| 3332 rcx); | |
| 3333 __ decrementl(rdx); | |
| 3334 __ jcc(Assembler::notZero, loop); | |
| 3335 } | |
| 3336 | |
| 3337 // initialize object header only. | |
| 3338 __ bind(initialize_header); | |
| 3339 if (UseBiasedLocking) { | |
|
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|
3340 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
| 304 | 3341 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
| 0 | 3342 } else { |
| 3343 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
| 3344 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
| 3345 } | |
|
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3346 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
|
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3347 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
|
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3348 __ store_klass(rax, rsi); // store klass last |
|
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3349 |
|
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|
3350 { |
|
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|
3351 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
|
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3352 // Trigger dtrace event for fastpath |
|
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3353 __ push(atos); // save the return value |
|
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|
3354 __ call_VM_leaf( |
|
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3355 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
|
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3356 __ pop(atos); // restore the return value |
|
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3357 |
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|
3358 } |
| 0 | 3359 __ jmp(done); |
| 3360 } | |
| 3361 | |
| 3362 | |
| 3363 // slow case | |
| 3364 __ bind(slow_case); | |
| 3365 __ get_constant_pool(c_rarg1); | |
| 3366 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3367 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
| 3368 __ verify_oop(rax); | |
| 3369 | |
| 3370 // continue | |
| 3371 __ bind(done); | |
| 3372 } | |
| 3373 | |
| 3374 void TemplateTable::newarray() { | |
| 3375 transition(itos, atos); | |
| 3376 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
| 3377 __ movl(c_rarg2, rax); | |
| 3378 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
| 3379 c_rarg1, c_rarg2); | |
| 3380 } | |
| 3381 | |
| 3382 void TemplateTable::anewarray() { | |
| 3383 transition(itos, atos); | |
| 3384 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3385 __ get_constant_pool(c_rarg1); | |
| 3386 __ movl(c_rarg3, rax); | |
| 3387 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
| 3388 c_rarg1, c_rarg2, c_rarg3); | |
| 3389 } | |
| 3390 | |
| 3391 void TemplateTable::arraylength() { | |
| 3392 transition(atos, itos); | |
| 3393 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
| 3394 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
| 3395 } | |
| 3396 | |
| 3397 void TemplateTable::checkcast() { | |
| 3398 transition(atos, atos); | |
| 3399 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3400 __ testptr(rax, rax); // object is in rax |
| 0 | 3401 __ jcc(Assembler::zero, is_null); |
| 3402 | |
| 3403 // Get cpool & tags index | |
| 3404 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3405 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3406 // See if bytecode has already been quicked | |
| 3407 __ cmpb(Address(rdx, rbx, | |
| 3408 Address::times_1, | |
|
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|
3409 Array<u1>::base_offset_in_bytes()), |
| 0 | 3410 JVM_CONSTANT_Class); |
| 3411 __ jcc(Assembler::equal, quicked); | |
|
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|
3412 __ push(atos); // save receiver for result, and for GC |
|
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3413 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
|
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3414 // vm_result_2 has metadata result |
|
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|
3415 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3416 __ pop_ptr(rdx); // restore receiver |
| 3417 __ jmpb(resolved); | |
| 3418 | |
| 3419 // Get superklass in rax and subklass in rbx | |
| 3420 __ bind(quicked); | |
| 304 | 3421 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
| 3422 __ movptr(rax, Address(rcx, rbx, | |
|
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3423 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3424 |
| 3425 __ bind(resolved); | |
|
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|
3426 __ load_klass(rbx, rdx); |
| 0 | 3427 |
| 3428 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
| 3429 // Superklass in rax. Subklass in rbx. | |
| 3430 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 3431 | |
| 3432 // Come here on failure | |
| 3433 __ push_ptr(rdx); | |
| 3434 // object is at TOS | |
| 3435 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
| 3436 | |
| 3437 // Come here on success | |
| 3438 __ bind(ok_is_subtype); | |
| 304 | 3439 __ mov(rax, rdx); // Restore object in rdx |
| 0 | 3440 |
| 3441 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
| 3442 if (ProfileInterpreter) { | |
| 3443 __ jmp(done); | |
| 3444 __ bind(is_null); | |
| 3445 __ profile_null_seen(rcx); | |
| 3446 } else { | |
| 3447 __ bind(is_null); // same as 'done' | |
| 3448 } | |
| 3449 __ bind(done); | |
| 3450 } | |
| 3451 | |
| 3452 void TemplateTable::instanceof() { | |
| 3453 transition(atos, itos); | |
| 3454 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3455 __ testptr(rax, rax); |
| 0 | 3456 __ jcc(Assembler::zero, is_null); |
| 3457 | |
| 3458 // Get cpool & tags index | |
| 3459 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3460 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3461 // See if bytecode has already been quicked | |
| 3462 __ cmpb(Address(rdx, rbx, | |
| 3463 Address::times_1, | |
|
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|
3464 Array<u1>::base_offset_in_bytes()), |
| 0 | 3465 JVM_CONSTANT_Class); |
| 3466 __ jcc(Assembler::equal, quicked); | |
| 3467 | |
|
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3468 __ push(atos); // save receiver for result, and for GC |
|
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3469 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
|
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3470 // vm_result_2 has metadata result |
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3471 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3472 __ pop_ptr(rdx); // restore receiver |
|
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|
3473 __ verify_oop(rdx); |
|
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3474 __ load_klass(rdx, rdx); |
| 0 | 3475 __ jmpb(resolved); |
| 3476 | |
| 3477 // Get superklass in rax and subklass in rdx | |
| 3478 __ bind(quicked); | |
|
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3479 __ load_klass(rdx, rax); |
| 304 | 3480 __ movptr(rax, Address(rcx, rbx, |
|
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|
3481 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3482 |
| 3483 __ bind(resolved); | |
| 3484 | |
| 3485 // Generate subtype check. Blows rcx, rdi | |
| 3486 // Superklass in rax. Subklass in rdx. | |
| 3487 __ gen_subtype_check(rdx, ok_is_subtype); | |
| 3488 | |
| 3489 // Come here on failure | |
| 3490 __ xorl(rax, rax); | |
| 3491 __ jmpb(done); | |
| 3492 // Come here on success | |
| 3493 __ bind(ok_is_subtype); | |
| 3494 __ movl(rax, 1); | |
| 3495 | |
| 3496 // Collect counts on whether this test sees NULLs a lot or not. | |
| 3497 if (ProfileInterpreter) { | |
| 3498 __ jmp(done); | |
| 3499 __ bind(is_null); | |
| 3500 __ profile_null_seen(rcx); | |
| 3501 } else { | |
| 3502 __ bind(is_null); // same as 'done' | |
| 3503 } | |
| 3504 __ bind(done); | |
| 3505 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
| 3506 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
| 3507 } | |
| 3508 | |
| 3509 //----------------------------------------------------------------------------- | |
| 3510 // Breakpoints | |
| 3511 void TemplateTable::_breakpoint() { | |
| 3512 // Note: We get here even if we are single stepping.. | |
| 3513 // jbug inists on setting breakpoints at every bytecode | |
| 3514 // even if we are in single step mode. | |
| 3515 | |
| 3516 transition(vtos, vtos); | |
| 3517 | |
| 3518 // get the unpatched byte code | |
| 3519 __ get_method(c_rarg1); | |
| 3520 __ call_VM(noreg, | |
| 3521 CAST_FROM_FN_PTR(address, | |
| 3522 InterpreterRuntime::get_original_bytecode_at), | |
| 3523 c_rarg1, r13); | |
| 304 | 3524 __ mov(rbx, rax); |
| 0 | 3525 |
| 3526 // post the breakpoint event | |
| 3527 __ get_method(c_rarg1); | |
| 3528 __ call_VM(noreg, | |
| 3529 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
| 3530 c_rarg1, r13); | |
| 3531 | |
| 3532 // complete the execution of original bytecode | |
| 3533 __ dispatch_only_normal(vtos); | |
| 3534 } | |
| 3535 | |
| 3536 //----------------------------------------------------------------------------- | |
| 3537 // Exceptions | |
| 3538 | |
| 3539 void TemplateTable::athrow() { | |
| 3540 transition(atos, vtos); | |
| 3541 __ null_check(rax); | |
| 3542 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 3543 } | |
| 3544 | |
| 3545 //----------------------------------------------------------------------------- | |
| 3546 // Synchronization | |
| 3547 // | |
| 3548 // Note: monitorenter & exit are symmetric routines; which is reflected | |
| 3549 // in the assembly code structure as well | |
| 3550 // | |
| 3551 // Stack layout: | |
| 3552 // | |
| 3553 // [expressions ] <--- rsp = expression stack top | |
| 3554 // .. | |
| 3555 // [expressions ] | |
| 3556 // [monitor entry] <--- monitor block top = expression stack bot | |
| 3557 // .. | |
| 3558 // [monitor entry] | |
| 3559 // [frame data ] <--- monitor block bot | |
| 3560 // ... | |
| 3561 // [saved rbp ] <--- rbp | |
| 3562 void TemplateTable::monitorenter() { | |
| 3563 transition(atos, vtos); | |
| 3564 | |
| 3565 // check for NULL object | |
| 3566 __ null_check(rax); | |
| 3567 | |
| 3568 const Address monitor_block_top( | |
| 3569 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3570 const Address monitor_block_bot( | |
| 3571 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3572 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3573 | |
| 3574 Label allocated; | |
| 3575 | |
| 3576 // initialize entry pointer | |
| 3577 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
| 3578 | |
| 3579 // find a free slot in the monitor block (result in c_rarg1) | |
| 3580 { | |
| 3581 Label entry, loop, exit; | |
| 304 | 3582 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
| 0 | 3583 // starting with top-most entry |
| 304 | 3584 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3585 // of monitor block |
| 3586 __ jmpb(entry); | |
| 3587 | |
| 3588 __ bind(loop); | |
| 3589 // check if current entry is used | |
| 304 | 3590 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
| 0 | 3591 // if not used then remember entry in c_rarg1 |
| 304 | 3592 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
| 0 | 3593 // check if current entry is for same object |
| 304 | 3594 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3595 // if same object then stop searching |
| 3596 __ jccb(Assembler::equal, exit); | |
| 3597 // otherwise advance to next entry | |
| 304 | 3598 __ addptr(c_rarg3, entry_size); |
| 0 | 3599 __ bind(entry); |
| 3600 // check if bottom reached | |
| 304 | 3601 __ cmpptr(c_rarg3, c_rarg2); |
| 0 | 3602 // if not at bottom then check this entry |
| 3603 __ jcc(Assembler::notEqual, loop); | |
| 3604 __ bind(exit); | |
| 3605 } | |
| 3606 | |
| 304 | 3607 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
| 0 | 3608 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
| 3609 | |
| 3610 // allocate one if there's no free slot | |
| 3611 { | |
| 3612 Label entry, loop; | |
| 304 | 3613 // 1. compute new pointers // rsp: old expression stack top |
| 3614 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
| 3615 __ subptr(rsp, entry_size); // move expression stack top | |
| 3616 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
| 3617 __ mov(c_rarg3, rsp); // set start value for copy loop | |
| 3618 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
| 0 | 3619 __ jmp(entry); |
| 3620 // 2. move expression stack contents | |
| 3621 __ bind(loop); | |
| 304 | 3622 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
| 3623 // word from old location | |
| 3624 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
| 3625 __ addptr(c_rarg3, wordSize); // advance to next word | |
| 0 | 3626 __ bind(entry); |
| 304 | 3627 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
| 0 | 3628 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
| 3629 // copy next word | |
| 3630 } | |
| 3631 | |
| 3632 // call run-time routine | |
| 3633 // c_rarg1: points to monitor entry | |
| 3634 __ bind(allocated); | |
| 3635 | |
| 3636 // Increment bcp to point to the next bytecode, so exception | |
| 3637 // handling for async. exceptions work correctly. | |
| 3638 // The object has already been poped from the stack, so the | |
| 3639 // expression stack looks correct. | |
| 304 | 3640 __ increment(r13); |
| 0 | 3641 |
| 3642 // store object | |
| 304 | 3643 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 0 | 3644 __ lock_object(c_rarg1); |
| 3645 | |
| 3646 // check to make sure this monitor doesn't cause stack overflow after locking | |
| 3647 __ save_bcp(); // in case of exception | |
| 3648 __ generate_stack_overflow_check(0); | |
| 3649 | |
| 3650 // The bcp has already been incremented. Just need to dispatch to | |
| 3651 // next instruction. | |
| 3652 __ dispatch_next(vtos); | |
| 3653 } | |
| 3654 | |
| 3655 | |
| 3656 void TemplateTable::monitorexit() { | |
| 3657 transition(atos, vtos); | |
| 3658 | |
| 3659 // check for NULL object | |
| 3660 __ null_check(rax); | |
| 3661 | |
| 3662 const Address monitor_block_top( | |
| 3663 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3664 const Address monitor_block_bot( | |
| 3665 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3666 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3667 | |
| 3668 Label found; | |
| 3669 | |
| 3670 // find matching slot | |
| 3671 { | |
| 3672 Label entry, loop; | |
| 304 | 3673 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
| 0 | 3674 // starting with top-most entry |
| 304 | 3675 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3676 // of monitor block |
| 3677 __ jmpb(entry); | |
| 3678 | |
| 3679 __ bind(loop); | |
| 3680 // check if current entry is for same object | |
| 304 | 3681 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3682 // if same object then stop searching |
| 3683 __ jcc(Assembler::equal, found); | |
| 3684 // otherwise advance to next entry | |
| 304 | 3685 __ addptr(c_rarg1, entry_size); |
| 0 | 3686 __ bind(entry); |
| 3687 // check if bottom reached | |
| 304 | 3688 __ cmpptr(c_rarg1, c_rarg2); |
| 0 | 3689 // if not at bottom then check this entry |
| 3690 __ jcc(Assembler::notEqual, loop); | |
| 3691 } | |
| 3692 | |
| 3693 // error handling. Unlocking was not block-structured | |
| 3694 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 3695 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3696 __ should_not_reach_here(); | |
| 3697 | |
| 3698 // call run-time routine | |
| 3699 // rsi: points to monitor entry | |
| 3700 __ bind(found); | |
| 3701 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
| 3702 __ unlock_object(c_rarg1); | |
| 3703 __ pop_ptr(rax); // discard object | |
| 3704 } | |
| 3705 | |
| 3706 | |
| 3707 // Wide instructions | |
| 3708 void TemplateTable::wide() { | |
| 3709 transition(vtos, vtos); | |
| 3710 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 3711 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
| 3712 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
| 3713 // Note: the r13 increment step is part of the individual wide | |
| 3714 // bytecode implementations | |
| 3715 } | |
| 3716 | |
| 3717 | |
| 3718 // Multi arrays | |
| 3719 void TemplateTable::multianewarray() { | |
| 3720 transition(vtos, atos); | |
| 3721 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
| 3722 // last dim is on top of stack; we want address of first one: | |
| 3723 // first_addr = last_addr + (ndims - 1) * wordSize | |
| 304 | 3724 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
| 0 | 3725 call_VM(rax, |
| 3726 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
| 3727 c_rarg1); | |
| 3728 __ load_unsigned_byte(rbx, at_bcp(3)); | |
| 304 | 3729 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 3730 } |
| 304 | 3731 #endif // !CC_INTERP |