Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateTable_x86_32.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) 1997, 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 |
| 39 #ifndef CC_INTERP | |
| 40 #define __ _masm-> | |
| 41 | |
| 42 //---------------------------------------------------------------------------------------------------- | |
| 43 // Platform-dependent initialization | |
| 44 | |
| 45 void TemplateTable::pd_initialize() { | |
| 46 // No i486 specific initialization | |
| 47 } | |
| 48 | |
| 49 //---------------------------------------------------------------------------------------------------- | |
| 50 // Address computation | |
| 51 | |
| 52 // local variables | |
| 53 static inline Address iaddress(int n) { | |
| 54 return Address(rdi, Interpreter::local_offset_in_bytes(n)); | |
| 55 } | |
| 56 | |
| 57 static inline Address laddress(int n) { return iaddress(n + 1); } | |
| 58 static inline Address haddress(int n) { return iaddress(n + 0); } | |
| 59 static inline Address faddress(int n) { return iaddress(n); } | |
| 60 static inline Address daddress(int n) { return laddress(n); } | |
| 61 static inline Address aaddress(int n) { return iaddress(n); } | |
| 62 | |
| 63 static inline Address iaddress(Register r) { | |
| 1506 | 64 return Address(rdi, r, Interpreter::stackElementScale()); |
| 0 | 65 } |
| 66 static inline Address laddress(Register r) { | |
| 67 return Address(rdi, r, Interpreter::stackElementScale(), Interpreter::local_offset_in_bytes(1)); | |
| 68 } | |
| 69 static inline Address haddress(Register r) { | |
| 70 return Address(rdi, r, Interpreter::stackElementScale(), Interpreter::local_offset_in_bytes(0)); | |
| 71 } | |
| 72 | |
| 1506 | 73 static inline Address faddress(Register r) { return iaddress(r); } |
| 74 static inline Address daddress(Register r) { return laddress(r); } | |
| 75 static inline Address aaddress(Register r) { return iaddress(r); } | |
| 0 | 76 |
| 77 // expression stack | |
| 78 // (Note: Must not use symmetric equivalents at_rsp_m1/2 since they store | |
| 79 // data beyond the rsp which is potentially unsafe in an MT environment; | |
| 80 // an interrupt may overwrite that data.) | |
| 81 static inline Address at_rsp () { | |
| 82 return Address(rsp, 0); | |
| 83 } | |
| 84 | |
| 85 // At top of Java expression stack which may be different than rsp(). It | |
| 86 // isn't for category 1 objects. | |
| 87 static inline Address at_tos () { | |
| 88 Address tos = Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
| 89 return tos; | |
| 90 } | |
| 91 | |
| 92 static inline Address at_tos_p1() { | |
| 93 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
| 94 } | |
| 95 | |
| 96 static inline Address at_tos_p2() { | |
| 97 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
| 98 } | |
| 99 | |
| 100 // Condition conversion | |
| 101 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
| 102 switch (cc) { | |
| 103 case TemplateTable::equal : return Assembler::notEqual; | |
| 104 case TemplateTable::not_equal : return Assembler::equal; | |
| 105 case TemplateTable::less : return Assembler::greaterEqual; | |
| 106 case TemplateTable::less_equal : return Assembler::greater; | |
| 107 case TemplateTable::greater : return Assembler::lessEqual; | |
| 108 case TemplateTable::greater_equal: return Assembler::less; | |
| 109 } | |
| 110 ShouldNotReachHere(); | |
| 111 return Assembler::zero; | |
| 112 } | |
| 113 | |
| 114 | |
| 115 //---------------------------------------------------------------------------------------------------- | |
| 116 // Miscelaneous helper routines | |
| 117 | |
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118 // Store an oop (or NULL) at the address described by obj. |
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119 // If val == noreg this means store a NULL |
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120 |
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121 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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122 Address obj, |
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123 Register val, |
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124 BarrierSet::Name barrier, |
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125 bool precise) { |
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126 assert(val == noreg || val == rax, "parameter is just for looks"); |
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127 switch (barrier) { |
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128 #ifndef SERIALGC |
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129 case BarrierSet::G1SATBCT: |
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130 case BarrierSet::G1SATBCTLogging: |
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131 { |
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132 // flatten object address if needed |
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133 // We do it regardless of precise because we need the registers |
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134 if (obj.index() == noreg && obj.disp() == 0) { |
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135 if (obj.base() != rdx) { |
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136 __ movl(rdx, obj.base()); |
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137 } |
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138 } else { |
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139 __ leal(rdx, obj); |
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140 } |
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141 __ get_thread(rcx); |
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142 __ save_bcp(); |
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143 __ g1_write_barrier_pre(rdx /* obj */, |
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144 rbx /* pre_val */, |
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145 rcx /* thread */, |
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146 rsi /* tmp */, |
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147 val != noreg /* tosca_live */, |
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148 false /* expand_call */); |
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149 |
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150 // Do the actual store |
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151 // noreg means NULL |
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152 if (val == noreg) { |
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153 __ movptr(Address(rdx, 0), NULL_WORD); |
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154 // No post barrier for NULL |
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155 } else { |
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156 __ movl(Address(rdx, 0), val); |
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157 __ g1_write_barrier_post(rdx /* store_adr */, |
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158 val /* new_val */, |
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159 rcx /* thread */, |
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160 rbx /* tmp */, |
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161 rsi /* tmp2 */); |
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162 } |
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163 __ restore_bcp(); |
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164 |
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165 } |
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166 break; |
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167 #endif // SERIALGC |
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168 case BarrierSet::CardTableModRef: |
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169 case BarrierSet::CardTableExtension: |
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170 { |
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171 if (val == noreg) { |
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172 __ movptr(obj, NULL_WORD); |
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173 } else { |
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174 __ movl(obj, val); |
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175 // flatten object address if needed |
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176 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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177 __ store_check(obj.base()); |
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178 } else { |
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179 __ leal(rdx, obj); |
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180 __ store_check(rdx); |
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181 } |
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182 } |
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183 } |
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184 break; |
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185 case BarrierSet::ModRef: |
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186 case BarrierSet::Other: |
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187 if (val == noreg) { |
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188 __ movptr(obj, NULL_WORD); |
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189 } else { |
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190 __ movl(obj, val); |
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191 } |
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192 break; |
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193 default : |
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194 ShouldNotReachHere(); |
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195 |
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196 } |
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197 } |
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198 |
| 0 | 199 Address TemplateTable::at_bcp(int offset) { |
| 200 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 201 return Address(rsi, offset); | |
| 202 } | |
| 203 | |
| 204 | |
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205 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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206 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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207 int byte_no) { |
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208 if (!RewriteBytecodes) return; |
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209 Label L_patch_done; |
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210 |
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211 switch (bc) { |
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212 case Bytecodes::_fast_aputfield: |
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213 case Bytecodes::_fast_bputfield: |
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214 case Bytecodes::_fast_cputfield: |
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215 case Bytecodes::_fast_dputfield: |
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216 case Bytecodes::_fast_fputfield: |
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217 case Bytecodes::_fast_iputfield: |
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218 case Bytecodes::_fast_lputfield: |
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219 case Bytecodes::_fast_sputfield: |
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220 { |
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221 // We skip bytecode quickening for putfield instructions when |
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222 // the put_code written to the constant pool cache is zero. |
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223 // This is required so that every execution of this instruction |
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224 // calls out to InterpreterRuntime::resolve_get_put to do |
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225 // additional, required work. |
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226 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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227 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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228 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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229 __ movl(bc_reg, bc); |
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230 __ cmpl(temp_reg, (int) 0); |
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231 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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232 } |
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233 break; |
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234 default: |
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235 assert(byte_no == -1, "sanity"); |
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236 // the pair bytecodes have already done the load. |
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237 if (load_bc_into_bc_reg) { |
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238 __ movl(bc_reg, bc); |
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239 } |
| 304 | 240 } |
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241 |
| 0 | 242 if (JvmtiExport::can_post_breakpoint()) { |
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243 Label L_fast_patch; |
| 0 | 244 // if a breakpoint is present we can't rewrite the stream directly |
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245 __ movzbl(temp_reg, at_bcp(0)); |
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246 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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247 __ jcc(Assembler::notEqual, L_fast_patch); |
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248 __ get_method(temp_reg); |
| 0 | 249 // Let breakpoint table handling rewrite to quicker bytecode |
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250 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, rsi, bc_reg); |
| 0 | 251 #ifndef ASSERT |
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252 __ jmpb(L_patch_done); |
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253 #else |
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254 __ jmp(L_patch_done); |
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255 #endif |
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256 __ bind(L_fast_patch); |
| 0 | 257 } |
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258 |
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259 #ifdef ASSERT |
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260 Label L_okay; |
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261 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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262 __ cmpl(temp_reg, (int)Bytecodes::java_code(bc)); |
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263 __ jccb(Assembler::equal, L_okay); |
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264 __ cmpl(temp_reg, bc_reg); |
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265 __ jcc(Assembler::equal, L_okay); |
| 0 | 266 __ stop("patching the wrong bytecode"); |
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267 __ bind(L_okay); |
| 0 | 268 #endif |
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269 |
| 0 | 270 // patch bytecode |
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271 __ movb(at_bcp(0), bc_reg); |
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272 __ bind(L_patch_done); |
| 0 | 273 } |
| 274 | |
| 275 //---------------------------------------------------------------------------------------------------- | |
| 276 // Individual instructions | |
| 277 | |
| 278 void TemplateTable::nop() { | |
| 279 transition(vtos, vtos); | |
| 280 // nothing to do | |
| 281 } | |
| 282 | |
| 283 void TemplateTable::shouldnotreachhere() { | |
| 284 transition(vtos, vtos); | |
| 285 __ stop("shouldnotreachhere bytecode"); | |
| 286 } | |
| 287 | |
| 288 | |
| 289 | |
| 290 void TemplateTable::aconst_null() { | |
| 291 transition(vtos, atos); | |
| 304 | 292 __ xorptr(rax, rax); |
| 0 | 293 } |
| 294 | |
| 295 | |
| 296 void TemplateTable::iconst(int value) { | |
| 297 transition(vtos, itos); | |
| 298 if (value == 0) { | |
| 304 | 299 __ xorptr(rax, rax); |
| 0 | 300 } else { |
| 304 | 301 __ movptr(rax, value); |
| 0 | 302 } |
| 303 } | |
| 304 | |
| 305 | |
| 306 void TemplateTable::lconst(int value) { | |
| 307 transition(vtos, ltos); | |
| 308 if (value == 0) { | |
| 304 | 309 __ xorptr(rax, rax); |
| 0 | 310 } else { |
| 304 | 311 __ movptr(rax, value); |
| 0 | 312 } |
| 313 assert(value >= 0, "check this code"); | |
| 304 | 314 __ xorptr(rdx, rdx); |
| 0 | 315 } |
| 316 | |
| 317 | |
| 318 void TemplateTable::fconst(int value) { | |
| 319 transition(vtos, ftos); | |
| 320 if (value == 0) { __ fldz(); | |
| 321 } else if (value == 1) { __ fld1(); | |
| 322 } else if (value == 2) { __ fld1(); __ fld1(); __ faddp(); // should do a better solution here | |
| 323 } else { ShouldNotReachHere(); | |
| 324 } | |
| 325 } | |
| 326 | |
| 327 | |
| 328 void TemplateTable::dconst(int value) { | |
| 329 transition(vtos, dtos); | |
| 330 if (value == 0) { __ fldz(); | |
| 331 } else if (value == 1) { __ fld1(); | |
| 332 } else { ShouldNotReachHere(); | |
| 333 } | |
| 334 } | |
| 335 | |
| 336 | |
| 337 void TemplateTable::bipush() { | |
| 338 transition(vtos, itos); | |
| 339 __ load_signed_byte(rax, at_bcp(1)); | |
| 340 } | |
| 341 | |
| 342 | |
| 343 void TemplateTable::sipush() { | |
| 344 transition(vtos, itos); | |
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345 __ load_unsigned_short(rax, at_bcp(1)); |
| 304 | 346 __ bswapl(rax); |
| 0 | 347 __ sarl(rax, 16); |
| 348 } | |
| 349 | |
| 350 void TemplateTable::ldc(bool wide) { | |
| 351 transition(vtos, vtos); | |
| 352 Label call_ldc, notFloat, notClass, Done; | |
| 353 | |
| 354 if (wide) { | |
| 355 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 356 } else { | |
| 357 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 358 } | |
| 359 __ get_cpool_and_tags(rcx, rax); | |
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360 const int base_offset = ConstantPool::header_size() * wordSize; |
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361 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 362 |
| 363 // get type | |
| 304 | 364 __ xorptr(rdx, rdx); |
| 0 | 365 __ movb(rdx, Address(rax, rbx, Address::times_1, tags_offset)); |
| 366 | |
| 367 // unresolved class - get the resolved class | |
| 368 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
| 369 __ jccb(Assembler::equal, call_ldc); | |
| 370 | |
| 371 // unresolved class in error (resolution failed) - call into runtime | |
| 372 // so that the same error from first resolution attempt is thrown. | |
| 373 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
| 374 __ jccb(Assembler::equal, call_ldc); | |
| 375 | |
| 376 // resolved class - need to call vm to get java mirror of the class | |
| 377 __ cmpl(rdx, JVM_CONSTANT_Class); | |
| 378 __ jcc(Assembler::notEqual, notClass); | |
| 379 | |
| 380 __ bind(call_ldc); | |
| 381 __ movl(rcx, wide); | |
| 382 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), rcx); | |
| 383 __ push(atos); | |
| 384 __ jmp(Done); | |
| 385 | |
| 386 __ bind(notClass); | |
| 387 __ cmpl(rdx, JVM_CONSTANT_Float); | |
| 388 __ jccb(Assembler::notEqual, notFloat); | |
| 389 // ftos | |
| 304 | 390 __ fld_s( Address(rcx, rbx, Address::times_ptr, base_offset)); |
| 0 | 391 __ push(ftos); |
| 392 __ jmp(Done); | |
| 393 | |
| 394 __ bind(notFloat); | |
| 395 #ifdef ASSERT | |
| 396 { Label L; | |
| 397 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
| 398 __ jcc(Assembler::equal, L); | |
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399 // String and Object are rewritten to fast_aldc |
| 0 | 400 __ stop("unexpected tag type in ldc"); |
| 401 __ bind(L); | |
| 402 } | |
| 403 #endif | |
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404 // itos JVM_CONSTANT_Integer only |
| 304 | 405 __ movl(rax, Address(rcx, rbx, Address::times_ptr, base_offset)); |
| 0 | 406 __ push(itos); |
| 407 __ bind(Done); | |
| 408 } | |
| 409 | |
| 1602 | 410 // Fast path for caching oop constants. |
| 411 void TemplateTable::fast_aldc(bool wide) { | |
| 412 transition(vtos, atos); | |
| 413 | |
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414 Register result = rax; |
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415 Register tmp = rdx; |
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416 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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417 |
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418 Label resolved; |
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419 |
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420 // We are resolved if the resolved reference cache entry contains a |
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421 // non-null object (String, MethodType, etc.) |
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422 assert_different_registers(result, tmp); |
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423 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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424 __ load_resolved_reference_at_index(result, tmp); |
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425 __ testl(result, result); |
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426 __ jcc(Assembler::notZero, resolved); |
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427 |
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428 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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429 |
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430 // first time invocation - must resolve first |
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431 __ movl(tmp, (int)bytecode()); |
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432 __ call_VM(result, entry, tmp); |
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433 |
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434 __ bind(resolved); |
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435 |
| 1602 | 436 if (VerifyOops) { |
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437 __ verify_oop(result); |
| 1602 | 438 } |
| 439 } | |
| 440 | |
| 0 | 441 void TemplateTable::ldc2_w() { |
| 442 transition(vtos, vtos); | |
| 443 Label Long, Done; | |
| 444 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 445 | |
| 446 __ get_cpool_and_tags(rcx, rax); | |
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447 const int base_offset = ConstantPool::header_size() * wordSize; |
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448 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 449 |
| 450 // get type | |
| 451 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), JVM_CONSTANT_Double); | |
| 452 __ jccb(Assembler::notEqual, Long); | |
| 453 // dtos | |
| 304 | 454 __ fld_d( Address(rcx, rbx, Address::times_ptr, base_offset)); |
| 0 | 455 __ push(dtos); |
| 456 __ jmpb(Done); | |
| 457 | |
| 458 __ bind(Long); | |
| 459 // ltos | |
| 304 | 460 __ movptr(rax, Address(rcx, rbx, Address::times_ptr, base_offset + 0 * wordSize)); |
| 461 NOT_LP64(__ movptr(rdx, Address(rcx, rbx, Address::times_ptr, base_offset + 1 * wordSize))); | |
| 0 | 462 |
| 463 __ push(ltos); | |
| 464 | |
| 465 __ bind(Done); | |
| 466 } | |
| 467 | |
| 468 | |
| 469 void TemplateTable::locals_index(Register reg, int offset) { | |
| 470 __ load_unsigned_byte(reg, at_bcp(offset)); | |
| 304 | 471 __ negptr(reg); |
| 0 | 472 } |
| 473 | |
| 474 | |
| 475 void TemplateTable::iload() { | |
| 476 transition(vtos, itos); | |
| 477 if (RewriteFrequentPairs) { | |
| 478 Label rewrite, done; | |
| 479 | |
| 480 // get next byte | |
| 481 __ load_unsigned_byte(rbx, at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
| 482 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 483 // last two iloads in a pair. Comparing against fast_iload means that | |
| 484 // the next bytecode is neither an iload or a caload, and therefore | |
| 485 // an iload pair. | |
| 486 __ cmpl(rbx, Bytecodes::_iload); | |
| 487 __ jcc(Assembler::equal, done); | |
| 488 | |
| 489 __ cmpl(rbx, Bytecodes::_fast_iload); | |
| 490 __ movl(rcx, Bytecodes::_fast_iload2); | |
| 491 __ jccb(Assembler::equal, rewrite); | |
| 492 | |
| 493 // if _caload, rewrite to fast_icaload | |
| 494 __ cmpl(rbx, Bytecodes::_caload); | |
| 495 __ movl(rcx, Bytecodes::_fast_icaload); | |
| 496 __ jccb(Assembler::equal, rewrite); | |
| 497 | |
| 498 // rewrite so iload doesn't check again. | |
| 499 __ movl(rcx, Bytecodes::_fast_iload); | |
| 500 | |
| 501 // rewrite | |
| 502 // rcx: fast bytecode | |
| 503 __ bind(rewrite); | |
| 504 patch_bytecode(Bytecodes::_iload, rcx, rbx, false); | |
| 505 __ bind(done); | |
| 506 } | |
| 507 | |
| 508 // Get the local value into tos | |
| 509 locals_index(rbx); | |
| 510 __ movl(rax, iaddress(rbx)); | |
| 511 } | |
| 512 | |
| 513 | |
| 514 void TemplateTable::fast_iload2() { | |
| 515 transition(vtos, itos); | |
| 516 locals_index(rbx); | |
| 517 __ movl(rax, iaddress(rbx)); | |
| 518 __ push(itos); | |
| 519 locals_index(rbx, 3); | |
| 520 __ movl(rax, iaddress(rbx)); | |
| 521 } | |
| 522 | |
| 523 void TemplateTable::fast_iload() { | |
| 524 transition(vtos, itos); | |
| 525 locals_index(rbx); | |
| 526 __ movl(rax, iaddress(rbx)); | |
| 527 } | |
| 528 | |
| 529 | |
| 530 void TemplateTable::lload() { | |
| 531 transition(vtos, ltos); | |
| 532 locals_index(rbx); | |
| 304 | 533 __ movptr(rax, laddress(rbx)); |
| 534 NOT_LP64(__ movl(rdx, haddress(rbx))); | |
| 0 | 535 } |
| 536 | |
| 537 | |
| 538 void TemplateTable::fload() { | |
| 539 transition(vtos, ftos); | |
| 540 locals_index(rbx); | |
| 541 __ fld_s(faddress(rbx)); | |
| 542 } | |
| 543 | |
| 544 | |
| 545 void TemplateTable::dload() { | |
| 546 transition(vtos, dtos); | |
| 547 locals_index(rbx); | |
| 1506 | 548 __ fld_d(daddress(rbx)); |
| 0 | 549 } |
| 550 | |
| 551 | |
| 552 void TemplateTable::aload() { | |
| 553 transition(vtos, atos); | |
| 554 locals_index(rbx); | |
| 304 | 555 __ movptr(rax, aaddress(rbx)); |
| 0 | 556 } |
| 557 | |
| 558 | |
| 559 void TemplateTable::locals_index_wide(Register reg) { | |
| 560 __ movl(reg, at_bcp(2)); | |
| 304 | 561 __ bswapl(reg); |
| 0 | 562 __ shrl(reg, 16); |
| 304 | 563 __ negptr(reg); |
| 0 | 564 } |
| 565 | |
| 566 | |
| 567 void TemplateTable::wide_iload() { | |
| 568 transition(vtos, itos); | |
| 569 locals_index_wide(rbx); | |
| 570 __ movl(rax, iaddress(rbx)); | |
| 571 } | |
| 572 | |
| 573 | |
| 574 void TemplateTable::wide_lload() { | |
| 575 transition(vtos, ltos); | |
| 576 locals_index_wide(rbx); | |
| 304 | 577 __ movptr(rax, laddress(rbx)); |
| 578 NOT_LP64(__ movl(rdx, haddress(rbx))); | |
| 0 | 579 } |
| 580 | |
| 581 | |
| 582 void TemplateTable::wide_fload() { | |
| 583 transition(vtos, ftos); | |
| 584 locals_index_wide(rbx); | |
| 585 __ fld_s(faddress(rbx)); | |
| 586 } | |
| 587 | |
| 588 | |
| 589 void TemplateTable::wide_dload() { | |
| 590 transition(vtos, dtos); | |
| 591 locals_index_wide(rbx); | |
| 1506 | 592 __ fld_d(daddress(rbx)); |
| 0 | 593 } |
| 594 | |
| 595 | |
| 596 void TemplateTable::wide_aload() { | |
| 597 transition(vtos, atos); | |
| 598 locals_index_wide(rbx); | |
| 304 | 599 __ movptr(rax, aaddress(rbx)); |
| 0 | 600 } |
| 601 | |
| 602 void TemplateTable::index_check(Register array, Register index) { | |
| 603 // Pop ptr into array | |
| 604 __ pop_ptr(array); | |
| 605 index_check_without_pop(array, index); | |
| 606 } | |
| 607 | |
| 608 void TemplateTable::index_check_without_pop(Register array, Register index) { | |
| 609 // destroys rbx, | |
| 610 // check array | |
| 611 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
| 304 | 612 LP64_ONLY(__ movslq(index, index)); |
| 0 | 613 // check index |
| 614 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
| 615 if (index != rbx) { | |
| 616 // ??? convention: move aberrant index into rbx, for exception message | |
| 617 assert(rbx != array, "different registers"); | |
| 304 | 618 __ mov(rbx, index); |
| 0 | 619 } |
| 620 __ jump_cc(Assembler::aboveEqual, | |
| 621 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
| 622 } | |
| 623 | |
| 624 | |
| 625 void TemplateTable::iaload() { | |
| 626 transition(itos, itos); | |
| 627 // rdx: array | |
| 628 index_check(rdx, rax); // kills rbx, | |
| 629 // rax,: index | |
| 630 __ movl(rax, Address(rdx, rax, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 631 } | |
| 632 | |
| 633 | |
| 634 void TemplateTable::laload() { | |
| 635 transition(itos, ltos); | |
| 636 // rax,: index | |
| 637 // rdx: array | |
| 638 index_check(rdx, rax); | |
| 304 | 639 __ mov(rbx, rax); |
| 0 | 640 // rbx,: index |
| 304 | 641 __ movptr(rax, Address(rdx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 0 * wordSize)); |
| 642 NOT_LP64(__ movl(rdx, Address(rdx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 1 * wordSize))); | |
| 0 | 643 } |
| 644 | |
| 645 | |
| 646 void TemplateTable::faload() { | |
| 647 transition(itos, ftos); | |
| 648 // rdx: array | |
| 649 index_check(rdx, rax); // kills rbx, | |
| 650 // rax,: index | |
| 651 __ fld_s(Address(rdx, rax, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 652 } | |
| 653 | |
| 654 | |
| 655 void TemplateTable::daload() { | |
| 656 transition(itos, dtos); | |
| 657 // rdx: array | |
| 658 index_check(rdx, rax); // kills rbx, | |
| 659 // rax,: index | |
| 660 __ fld_d(Address(rdx, rax, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 661 } | |
| 662 | |
| 663 | |
| 664 void TemplateTable::aaload() { | |
| 665 transition(itos, atos); | |
| 666 // rdx: array | |
| 667 index_check(rdx, rax); // kills rbx, | |
| 668 // rax,: index | |
| 304 | 669 __ movptr(rax, Address(rdx, rax, Address::times_ptr, arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 0 | 670 } |
| 671 | |
| 672 | |
| 673 void TemplateTable::baload() { | |
| 674 transition(itos, itos); | |
| 675 // rdx: array | |
| 676 index_check(rdx, rax); // kills rbx, | |
| 677 // rax,: index | |
| 678 // can do better code for P5 - fix this at some point | |
| 679 __ load_signed_byte(rbx, Address(rdx, rax, Address::times_1, arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
| 304 | 680 __ mov(rax, rbx); |
| 0 | 681 } |
| 682 | |
| 683 | |
| 684 void TemplateTable::caload() { | |
| 685 transition(itos, itos); | |
| 686 // rdx: array | |
| 687 index_check(rdx, rax); // kills rbx, | |
| 688 // rax,: index | |
| 689 // can do better code for P5 - may want to improve this at some point | |
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690 __ load_unsigned_short(rbx, Address(rdx, rax, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 304 | 691 __ mov(rax, rbx); |
| 0 | 692 } |
| 693 | |
| 694 // iload followed by caload frequent pair | |
| 695 void TemplateTable::fast_icaload() { | |
| 696 transition(vtos, itos); | |
| 697 // load index out of locals | |
| 698 locals_index(rbx); | |
| 699 __ movl(rax, iaddress(rbx)); | |
| 700 | |
| 701 // rdx: array | |
| 702 index_check(rdx, rax); | |
| 703 // rax,: index | |
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704 __ load_unsigned_short(rbx, Address(rdx, rax, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 304 | 705 __ mov(rax, rbx); |
| 0 | 706 } |
| 707 | |
| 708 void TemplateTable::saload() { | |
| 709 transition(itos, itos); | |
| 710 // rdx: array | |
| 711 index_check(rdx, rax); // kills rbx, | |
| 712 // rax,: index | |
| 713 // can do better code for P5 - may want to improve this at some point | |
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714 __ load_signed_short(rbx, Address(rdx, rax, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
| 304 | 715 __ mov(rax, rbx); |
| 0 | 716 } |
| 717 | |
| 718 | |
| 719 void TemplateTable::iload(int n) { | |
| 720 transition(vtos, itos); | |
| 721 __ movl(rax, iaddress(n)); | |
| 722 } | |
| 723 | |
| 724 | |
| 725 void TemplateTable::lload(int n) { | |
| 726 transition(vtos, ltos); | |
| 304 | 727 __ movptr(rax, laddress(n)); |
| 728 NOT_LP64(__ movptr(rdx, haddress(n))); | |
| 0 | 729 } |
| 730 | |
| 731 | |
| 732 void TemplateTable::fload(int n) { | |
| 733 transition(vtos, ftos); | |
| 734 __ fld_s(faddress(n)); | |
| 735 } | |
| 736 | |
| 737 | |
| 738 void TemplateTable::dload(int n) { | |
| 739 transition(vtos, dtos); | |
| 1506 | 740 __ fld_d(daddress(n)); |
| 0 | 741 } |
| 742 | |
| 743 | |
| 744 void TemplateTable::aload(int n) { | |
| 745 transition(vtos, atos); | |
| 304 | 746 __ movptr(rax, aaddress(n)); |
| 0 | 747 } |
| 748 | |
| 749 | |
| 750 void TemplateTable::aload_0() { | |
| 751 transition(vtos, atos); | |
| 752 // According to bytecode histograms, the pairs: | |
| 753 // | |
| 754 // _aload_0, _fast_igetfield | |
| 755 // _aload_0, _fast_agetfield | |
| 756 // _aload_0, _fast_fgetfield | |
| 757 // | |
| 758 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 759 // bytecode checks if the next bytecode is either _fast_igetfield, | |
| 760 // _fast_agetfield or _fast_fgetfield and then rewrites the | |
| 761 // current bytecode into a pair bytecode; otherwise it rewrites the current | |
| 762 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 763 // | |
| 764 // Note: If the next bytecode is _getfield, the rewrite must be delayed, | |
| 765 // otherwise we may miss an opportunity for a pair. | |
| 766 // | |
| 767 // Also rewrite frequent pairs | |
| 768 // aload_0, aload_1 | |
| 769 // aload_0, iload_1 | |
| 770 // These bytecodes with a small amount of code are most profitable to rewrite | |
| 771 if (RewriteFrequentPairs) { | |
| 772 Label rewrite, done; | |
| 773 // get next byte | |
| 774 __ load_unsigned_byte(rbx, at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
| 775 | |
| 776 // do actual aload_0 | |
| 777 aload(0); | |
| 778 | |
| 779 // if _getfield then wait with rewrite | |
| 780 __ cmpl(rbx, Bytecodes::_getfield); | |
| 781 __ jcc(Assembler::equal, done); | |
| 782 | |
| 783 // if _igetfield then reqrite to _fast_iaccess_0 | |
| 784 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 785 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
| 786 __ movl(rcx, Bytecodes::_fast_iaccess_0); | |
| 787 __ jccb(Assembler::equal, rewrite); | |
| 788 | |
| 789 // if _agetfield then reqrite to _fast_aaccess_0 | |
| 790 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 791 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
| 792 __ movl(rcx, Bytecodes::_fast_aaccess_0); | |
| 793 __ jccb(Assembler::equal, rewrite); | |
| 794 | |
| 795 // if _fgetfield then reqrite to _fast_faccess_0 | |
| 796 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 797 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
| 798 __ movl(rcx, Bytecodes::_fast_faccess_0); | |
| 799 __ jccb(Assembler::equal, rewrite); | |
| 800 | |
| 801 // else rewrite to _fast_aload0 | |
| 802 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 803 __ movl(rcx, Bytecodes::_fast_aload_0); | |
| 804 | |
| 805 // rewrite | |
| 806 // rcx: fast bytecode | |
| 807 __ bind(rewrite); | |
| 808 patch_bytecode(Bytecodes::_aload_0, rcx, rbx, false); | |
| 809 | |
| 810 __ bind(done); | |
| 811 } else { | |
| 812 aload(0); | |
| 813 } | |
| 814 } | |
| 815 | |
| 816 void TemplateTable::istore() { | |
| 817 transition(itos, vtos); | |
| 818 locals_index(rbx); | |
| 819 __ movl(iaddress(rbx), rax); | |
| 820 } | |
| 821 | |
| 822 | |
| 823 void TemplateTable::lstore() { | |
| 824 transition(ltos, vtos); | |
| 825 locals_index(rbx); | |
| 304 | 826 __ movptr(laddress(rbx), rax); |
| 827 NOT_LP64(__ movptr(haddress(rbx), rdx)); | |
| 0 | 828 } |
| 829 | |
| 830 | |
| 831 void TemplateTable::fstore() { | |
| 832 transition(ftos, vtos); | |
| 833 locals_index(rbx); | |
| 834 __ fstp_s(faddress(rbx)); | |
| 835 } | |
| 836 | |
| 837 | |
| 838 void TemplateTable::dstore() { | |
| 839 transition(dtos, vtos); | |
| 840 locals_index(rbx); | |
| 1506 | 841 __ fstp_d(daddress(rbx)); |
| 0 | 842 } |
| 843 | |
| 844 | |
| 845 void TemplateTable::astore() { | |
| 846 transition(vtos, vtos); | |
| 1506 | 847 __ pop_ptr(rax); |
| 0 | 848 locals_index(rbx); |
| 304 | 849 __ movptr(aaddress(rbx), rax); |
| 0 | 850 } |
| 851 | |
| 852 | |
| 853 void TemplateTable::wide_istore() { | |
| 854 transition(vtos, vtos); | |
| 855 __ pop_i(rax); | |
| 856 locals_index_wide(rbx); | |
| 857 __ movl(iaddress(rbx), rax); | |
| 858 } | |
| 859 | |
| 860 | |
| 861 void TemplateTable::wide_lstore() { | |
| 862 transition(vtos, vtos); | |
| 863 __ pop_l(rax, rdx); | |
| 864 locals_index_wide(rbx); | |
| 304 | 865 __ movptr(laddress(rbx), rax); |
| 866 NOT_LP64(__ movl(haddress(rbx), rdx)); | |
| 0 | 867 } |
| 868 | |
| 869 | |
| 870 void TemplateTable::wide_fstore() { | |
| 871 wide_istore(); | |
| 872 } | |
| 873 | |
| 874 | |
| 875 void TemplateTable::wide_dstore() { | |
| 876 wide_lstore(); | |
| 877 } | |
| 878 | |
| 879 | |
| 880 void TemplateTable::wide_astore() { | |
| 881 transition(vtos, vtos); | |
| 1506 | 882 __ pop_ptr(rax); |
| 0 | 883 locals_index_wide(rbx); |
| 304 | 884 __ movptr(aaddress(rbx), rax); |
| 0 | 885 } |
| 886 | |
| 887 | |
| 888 void TemplateTable::iastore() { | |
| 889 transition(itos, vtos); | |
| 890 __ pop_i(rbx); | |
| 891 // rax,: value | |
| 892 // rdx: array | |
| 893 index_check(rdx, rbx); // prefer index in rbx, | |
| 894 // rbx,: index | |
| 895 __ movl(Address(rdx, rbx, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_INT)), rax); | |
| 896 } | |
| 897 | |
| 898 | |
| 899 void TemplateTable::lastore() { | |
| 900 transition(ltos, vtos); | |
| 901 __ pop_i(rbx); | |
| 902 // rax,: low(value) | |
| 903 // rcx: array | |
| 904 // rdx: high(value) | |
| 905 index_check(rcx, rbx); // prefer index in rbx, | |
| 906 // rbx,: index | |
| 304 | 907 __ movptr(Address(rcx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 0 * wordSize), rax); |
| 908 NOT_LP64(__ movl(Address(rcx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 1 * wordSize), rdx)); | |
| 0 | 909 } |
| 910 | |
| 911 | |
| 912 void TemplateTable::fastore() { | |
| 913 transition(ftos, vtos); | |
| 914 __ pop_i(rbx); | |
| 915 // rdx: array | |
| 916 // st0: value | |
| 917 index_check(rdx, rbx); // prefer index in rbx, | |
| 918 // rbx,: index | |
| 919 __ fstp_s(Address(rdx, rbx, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 920 } | |
| 921 | |
| 922 | |
| 923 void TemplateTable::dastore() { | |
| 924 transition(dtos, vtos); | |
| 925 __ pop_i(rbx); | |
| 926 // rdx: array | |
| 927 // st0: value | |
| 928 index_check(rdx, rbx); // prefer index in rbx, | |
| 929 // rbx,: index | |
| 930 __ fstp_d(Address(rdx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 931 } | |
| 932 | |
| 933 | |
| 934 void TemplateTable::aastore() { | |
| 935 Label is_null, ok_is_subtype, done; | |
| 936 transition(vtos, vtos); | |
| 937 // stack: ..., array, index, value | |
| 304 | 938 __ movptr(rax, at_tos()); // Value |
| 0 | 939 __ movl(rcx, at_tos_p1()); // Index |
| 304 | 940 __ movptr(rdx, at_tos_p2()); // Array |
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941 |
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942 Address element_address(rdx, rcx, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
| 0 | 943 index_check_without_pop(rdx, rcx); // kills rbx, |
| 944 // do array store check - check for NULL value first | |
| 304 | 945 __ testptr(rax, rax); |
| 0 | 946 __ jcc(Assembler::zero, is_null); |
| 947 | |
| 948 // Move subklass into EBX | |
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949 __ load_klass(rbx, rax); |
| 0 | 950 // Move superklass into EAX |
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951 __ load_klass(rax, rdx); |
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952 __ movptr(rax, Address(rax, ObjArrayKlass::element_klass_offset())); |
| 304 | 953 // Compress array+index*wordSize+12 into a single register. Frees ECX. |
| 362 | 954 __ lea(rdx, element_address); |
| 0 | 955 |
| 956 // Generate subtype check. Blows ECX. Resets EDI to locals. | |
| 957 // Superklass in EAX. Subklass in EBX. | |
| 958 __ gen_subtype_check( rbx, ok_is_subtype ); | |
| 959 | |
| 960 // Come here on failure | |
| 961 // object is at TOS | |
| 962 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
| 963 | |
| 964 // Come here on success | |
| 965 __ bind(ok_is_subtype); | |
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966 |
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967 // Get the value to store |
| 362 | 968 __ movptr(rax, at_rsp()); |
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969 // and store it with appropriate barrier |
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970 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
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971 |
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972 __ jmp(done); |
| 0 | 973 |
| 974 // Have a NULL in EAX, EDX=array, ECX=index. Store NULL at ary[idx] | |
| 975 __ bind(is_null); | |
| 976 __ profile_null_seen(rbx); | |
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977 |
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978 // Store NULL, (noreg means NULL to do_oop_store) |
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979 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
| 0 | 980 |
| 981 // Pop stack arguments | |
| 982 __ bind(done); | |
| 1506 | 983 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
| 0 | 984 } |
| 985 | |
| 986 | |
| 987 void TemplateTable::bastore() { | |
| 988 transition(itos, vtos); | |
| 989 __ pop_i(rbx); | |
| 990 // rax,: value | |
| 991 // rdx: array | |
| 992 index_check(rdx, rbx); // prefer index in rbx, | |
| 993 // rbx,: index | |
| 994 __ movb(Address(rdx, rbx, Address::times_1, arrayOopDesc::base_offset_in_bytes(T_BYTE)), rax); | |
| 995 } | |
| 996 | |
| 997 | |
| 998 void TemplateTable::castore() { | |
| 999 transition(itos, vtos); | |
| 1000 __ pop_i(rbx); | |
| 1001 // rax,: value | |
| 1002 // rdx: array | |
| 1003 index_check(rdx, rbx); // prefer index in rbx, | |
| 1004 // rbx,: index | |
| 1005 __ movw(Address(rdx, rbx, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR)), rax); | |
| 1006 } | |
| 1007 | |
| 1008 | |
| 1009 void TemplateTable::sastore() { | |
| 1010 castore(); | |
| 1011 } | |
| 1012 | |
| 1013 | |
| 1014 void TemplateTable::istore(int n) { | |
| 1015 transition(itos, vtos); | |
| 1016 __ movl(iaddress(n), rax); | |
| 1017 } | |
| 1018 | |
| 1019 | |
| 1020 void TemplateTable::lstore(int n) { | |
| 1021 transition(ltos, vtos); | |
| 304 | 1022 __ movptr(laddress(n), rax); |
| 1023 NOT_LP64(__ movptr(haddress(n), rdx)); | |
| 0 | 1024 } |
| 1025 | |
| 1026 | |
| 1027 void TemplateTable::fstore(int n) { | |
| 1028 transition(ftos, vtos); | |
| 1029 __ fstp_s(faddress(n)); | |
| 1030 } | |
| 1031 | |
| 1032 | |
| 1033 void TemplateTable::dstore(int n) { | |
| 1034 transition(dtos, vtos); | |
| 1506 | 1035 __ fstp_d(daddress(n)); |
| 0 | 1036 } |
| 1037 | |
| 1038 | |
| 1039 void TemplateTable::astore(int n) { | |
| 1040 transition(vtos, vtos); | |
| 1506 | 1041 __ pop_ptr(rax); |
| 304 | 1042 __ movptr(aaddress(n), rax); |
| 0 | 1043 } |
| 1044 | |
| 1045 | |
| 1046 void TemplateTable::pop() { | |
| 1047 transition(vtos, vtos); | |
| 1506 | 1048 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1049 } |
| 1050 | |
| 1051 | |
| 1052 void TemplateTable::pop2() { | |
| 1053 transition(vtos, vtos); | |
| 1506 | 1054 __ addptr(rsp, 2*Interpreter::stackElementSize); |
| 0 | 1055 } |
| 1056 | |
| 1057 | |
| 1058 void TemplateTable::dup() { | |
| 1059 transition(vtos, vtos); | |
| 1060 // stack: ..., a | |
| 1506 | 1061 __ load_ptr(0, rax); |
| 1062 __ push_ptr(rax); | |
| 0 | 1063 // stack: ..., a, a |
| 1064 } | |
| 1065 | |
| 1066 | |
| 1067 void TemplateTable::dup_x1() { | |
| 1068 transition(vtos, vtos); | |
| 1069 // stack: ..., a, b | |
| 1506 | 1070 __ load_ptr( 0, rax); // load b |
| 1071 __ load_ptr( 1, rcx); // load a | |
| 1072 __ store_ptr(1, rax); // store b | |
| 1073 __ store_ptr(0, rcx); // store a | |
| 1074 __ push_ptr(rax); // push b | |
| 0 | 1075 // stack: ..., b, a, b |
| 1076 } | |
| 1077 | |
| 1078 | |
| 1079 void TemplateTable::dup_x2() { | |
| 1080 transition(vtos, vtos); | |
| 1081 // stack: ..., a, b, c | |
| 1506 | 1082 __ load_ptr( 0, rax); // load c |
| 1083 __ load_ptr( 2, rcx); // load a | |
| 1084 __ store_ptr(2, rax); // store c in a | |
| 1085 __ push_ptr(rax); // push c | |
| 0 | 1086 // stack: ..., c, b, c, c |
| 1506 | 1087 __ load_ptr( 2, rax); // load b |
| 1088 __ store_ptr(2, rcx); // store a in b | |
| 0 | 1089 // stack: ..., c, a, c, c |
| 1506 | 1090 __ store_ptr(1, rax); // store b in c |
| 0 | 1091 // stack: ..., c, a, b, c |
| 1092 } | |
| 1093 | |
| 1094 | |
| 1095 void TemplateTable::dup2() { | |
| 1096 transition(vtos, vtos); | |
| 1097 // stack: ..., a, b | |
| 1506 | 1098 __ load_ptr(1, rax); // load a |
| 1099 __ push_ptr(rax); // push a | |
| 1100 __ load_ptr(1, rax); // load b | |
| 1101 __ push_ptr(rax); // push b | |
| 0 | 1102 // stack: ..., a, b, a, b |
| 1103 } | |
| 1104 | |
| 1105 | |
| 1106 void TemplateTable::dup2_x1() { | |
| 1107 transition(vtos, vtos); | |
| 1108 // stack: ..., a, b, c | |
| 1506 | 1109 __ load_ptr( 0, rcx); // load c |
| 1110 __ load_ptr( 1, rax); // load b | |
| 1111 __ push_ptr(rax); // push b | |
| 1112 __ push_ptr(rcx); // push c | |
| 0 | 1113 // stack: ..., a, b, c, b, c |
| 1506 | 1114 __ store_ptr(3, rcx); // store c in b |
| 0 | 1115 // stack: ..., a, c, c, b, c |
| 1506 | 1116 __ load_ptr( 4, rcx); // load a |
| 1117 __ store_ptr(2, rcx); // store a in 2nd c | |
| 0 | 1118 // stack: ..., a, c, a, b, c |
| 1506 | 1119 __ store_ptr(4, rax); // store b in a |
| 0 | 1120 // stack: ..., b, c, a, b, c |
| 1121 // stack: ..., b, c, a, b, c | |
| 1122 } | |
| 1123 | |
| 1124 | |
| 1125 void TemplateTable::dup2_x2() { | |
| 1126 transition(vtos, vtos); | |
| 1127 // stack: ..., a, b, c, d | |
| 1506 | 1128 __ load_ptr( 0, rcx); // load d |
| 1129 __ load_ptr( 1, rax); // load c | |
| 1130 __ push_ptr(rax); // push c | |
| 1131 __ push_ptr(rcx); // push d | |
| 0 | 1132 // stack: ..., a, b, c, d, c, d |
| 1506 | 1133 __ load_ptr( 4, rax); // load b |
| 1134 __ store_ptr(2, rax); // store b in d | |
| 1135 __ store_ptr(4, rcx); // store d in b | |
| 0 | 1136 // stack: ..., a, d, c, b, c, d |
| 1506 | 1137 __ load_ptr( 5, rcx); // load a |
| 1138 __ load_ptr( 3, rax); // load c | |
| 1139 __ store_ptr(3, rcx); // store a in c | |
| 1140 __ store_ptr(5, rax); // store c in a | |
| 0 | 1141 // stack: ..., c, d, a, b, c, d |
| 1142 // stack: ..., c, d, a, b, c, d | |
| 1143 } | |
| 1144 | |
| 1145 | |
| 1146 void TemplateTable::swap() { | |
| 1147 transition(vtos, vtos); | |
| 1148 // stack: ..., a, b | |
| 1506 | 1149 __ load_ptr( 1, rcx); // load a |
| 1150 __ load_ptr( 0, rax); // load b | |
| 1151 __ store_ptr(0, rcx); // store a in b | |
| 1152 __ store_ptr(1, rax); // store b in a | |
| 0 | 1153 // stack: ..., b, a |
| 1154 } | |
| 1155 | |
| 1156 | |
| 1157 void TemplateTable::iop2(Operation op) { | |
| 1158 transition(itos, itos); | |
| 1159 switch (op) { | |
| 1506 | 1160 case add : __ pop_i(rdx); __ addl (rax, rdx); break; |
| 304 | 1161 case sub : __ mov(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; |
| 1506 | 1162 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; |
| 1163 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
| 1164 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
| 1165 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
| 304 | 1166 case shl : __ mov(rcx, rax); __ pop_i(rax); __ shll (rax); break; // implicit masking of lower 5 bits by Intel shift instr. |
| 1167 case shr : __ mov(rcx, rax); __ pop_i(rax); __ sarl (rax); break; // implicit masking of lower 5 bits by Intel shift instr. | |
| 1168 case ushr : __ mov(rcx, rax); __ pop_i(rax); __ shrl (rax); break; // implicit masking of lower 5 bits by Intel shift instr. | |
| 0 | 1169 default : ShouldNotReachHere(); |
| 1170 } | |
| 1171 } | |
| 1172 | |
| 1173 | |
| 1174 void TemplateTable::lop2(Operation op) { | |
| 1175 transition(ltos, ltos); | |
| 1176 __ pop_l(rbx, rcx); | |
| 1177 switch (op) { | |
| 1506 | 1178 case add : __ addl(rax, rbx); __ adcl(rdx, rcx); break; |
| 1179 case sub : __ subl(rbx, rax); __ sbbl(rcx, rdx); | |
| 1180 __ mov (rax, rbx); __ mov (rdx, rcx); break; | |
| 1181 case _and : __ andl(rax, rbx); __ andl(rdx, rcx); break; | |
| 1182 case _or : __ orl (rax, rbx); __ orl (rdx, rcx); break; | |
| 1183 case _xor : __ xorl(rax, rbx); __ xorl(rdx, rcx); break; | |
| 1184 default : ShouldNotReachHere(); | |
| 0 | 1185 } |
| 1186 } | |
| 1187 | |
| 1188 | |
| 1189 void TemplateTable::idiv() { | |
| 1190 transition(itos, itos); | |
| 304 | 1191 __ mov(rcx, rax); |
| 0 | 1192 __ pop_i(rax); |
| 1193 // Note: could xor rax, and rcx and compare with (-1 ^ min_int). If | |
| 1194 // they are not equal, one could do a normal division (no correction | |
| 1195 // needed), which may speed up this implementation for the common case. | |
| 1196 // (see also JVM spec., p.243 & p.271) | |
| 1197 __ corrected_idivl(rcx); | |
| 1198 } | |
| 1199 | |
| 1200 | |
| 1201 void TemplateTable::irem() { | |
| 1202 transition(itos, itos); | |
| 304 | 1203 __ mov(rcx, rax); |
| 0 | 1204 __ pop_i(rax); |
| 1205 // Note: could xor rax, and rcx and compare with (-1 ^ min_int). If | |
| 1206 // they are not equal, one could do a normal division (no correction | |
| 1207 // needed), which may speed up this implementation for the common case. | |
| 1208 // (see also JVM spec., p.243 & p.271) | |
| 1209 __ corrected_idivl(rcx); | |
| 304 | 1210 __ mov(rax, rdx); |
| 0 | 1211 } |
| 1212 | |
| 1213 | |
| 1214 void TemplateTable::lmul() { | |
| 1215 transition(ltos, ltos); | |
| 1216 __ pop_l(rbx, rcx); | |
| 304 | 1217 __ push(rcx); __ push(rbx); |
| 1218 __ push(rdx); __ push(rax); | |
| 0 | 1219 __ lmul(2 * wordSize, 0); |
| 304 | 1220 __ addptr(rsp, 4 * wordSize); // take off temporaries |
| 0 | 1221 } |
| 1222 | |
| 1223 | |
| 1224 void TemplateTable::ldiv() { | |
| 1225 transition(ltos, ltos); | |
| 1226 __ pop_l(rbx, rcx); | |
| 304 | 1227 __ push(rcx); __ push(rbx); |
| 1228 __ push(rdx); __ push(rax); | |
| 0 | 1229 // check if y = 0 |
| 1230 __ orl(rax, rdx); | |
| 1231 __ jump_cc(Assembler::zero, | |
| 1232 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1233 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 304 | 1234 __ addptr(rsp, 4 * wordSize); // take off temporaries |
| 0 | 1235 } |
| 1236 | |
| 1237 | |
| 1238 void TemplateTable::lrem() { | |
| 1239 transition(ltos, ltos); | |
| 1240 __ pop_l(rbx, rcx); | |
| 304 | 1241 __ push(rcx); __ push(rbx); |
| 1242 __ push(rdx); __ push(rax); | |
| 0 | 1243 // check if y = 0 |
| 1244 __ orl(rax, rdx); | |
| 1245 __ jump_cc(Assembler::zero, | |
| 1246 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1247 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 304 | 1248 __ addptr(rsp, 4 * wordSize); |
| 0 | 1249 } |
| 1250 | |
| 1251 | |
| 1252 void TemplateTable::lshl() { | |
| 1253 transition(itos, ltos); | |
| 1254 __ movl(rcx, rax); // get shift count | |
| 1255 __ pop_l(rax, rdx); // get shift value | |
| 1256 __ lshl(rdx, rax); | |
| 1257 } | |
| 1258 | |
| 1259 | |
| 1260 void TemplateTable::lshr() { | |
| 1261 transition(itos, ltos); | |
| 304 | 1262 __ mov(rcx, rax); // get shift count |
| 0 | 1263 __ pop_l(rax, rdx); // get shift value |
| 1264 __ lshr(rdx, rax, true); | |
| 1265 } | |
| 1266 | |
| 1267 | |
| 1268 void TemplateTable::lushr() { | |
| 1269 transition(itos, ltos); | |
| 304 | 1270 __ mov(rcx, rax); // get shift count |
| 0 | 1271 __ pop_l(rax, rdx); // get shift value |
| 1272 __ lshr(rdx, rax); | |
| 1273 } | |
| 1274 | |
| 1275 | |
| 1276 void TemplateTable::fop2(Operation op) { | |
| 1277 transition(ftos, ftos); | |
| 1278 switch (op) { | |
| 1279 case add: __ fadd_s (at_rsp()); break; | |
| 1280 case sub: __ fsubr_s(at_rsp()); break; | |
| 1281 case mul: __ fmul_s (at_rsp()); break; | |
| 1282 case div: __ fdivr_s(at_rsp()); break; | |
| 1283 case rem: __ fld_s (at_rsp()); __ fremr(rax); break; | |
| 1284 default : ShouldNotReachHere(); | |
| 1285 } | |
| 1286 __ f2ieee(); | |
| 304 | 1287 __ pop(rax); // pop float thing off |
| 0 | 1288 } |
| 1289 | |
| 1290 | |
| 1291 void TemplateTable::dop2(Operation op) { | |
| 1292 transition(dtos, dtos); | |
| 1293 | |
| 1294 switch (op) { | |
| 1295 case add: __ fadd_d (at_rsp()); break; | |
| 1296 case sub: __ fsubr_d(at_rsp()); break; | |
| 1297 case mul: { | |
| 1298 Label L_strict; | |
| 1299 Label L_join; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1300 const Address access_flags (rcx, Method::access_flags_offset()); |
| 0 | 1301 __ get_method(rcx); |
| 1302 __ movl(rcx, access_flags); | |
| 1303 __ testl(rcx, JVM_ACC_STRICT); | |
| 1304 __ jccb(Assembler::notZero, L_strict); | |
| 1305 __ fmul_d (at_rsp()); | |
| 1306 __ jmpb(L_join); | |
| 1307 __ bind(L_strict); | |
| 1308 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias1())); | |
| 1309 __ fmulp(); | |
| 1310 __ fmul_d (at_rsp()); | |
| 1311 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias2())); | |
| 1312 __ fmulp(); | |
| 1313 __ bind(L_join); | |
| 1314 break; | |
| 1315 } | |
| 1316 case div: { | |
| 1317 Label L_strict; | |
| 1318 Label L_join; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1319 const Address access_flags (rcx, Method::access_flags_offset()); |
| 0 | 1320 __ get_method(rcx); |
| 1321 __ movl(rcx, access_flags); | |
| 1322 __ testl(rcx, JVM_ACC_STRICT); | |
| 1323 __ jccb(Assembler::notZero, L_strict); | |
| 1324 __ fdivr_d(at_rsp()); | |
| 1325 __ jmp(L_join); | |
| 1326 __ bind(L_strict); | |
| 1327 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias1())); | |
| 1328 __ fmul_d (at_rsp()); | |
| 1329 __ fdivrp(); | |
| 1330 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias2())); | |
| 1331 __ fmulp(); | |
| 1332 __ bind(L_join); | |
| 1333 break; | |
| 1334 } | |
| 1335 case rem: __ fld_d (at_rsp()); __ fremr(rax); break; | |
| 1336 default : ShouldNotReachHere(); | |
| 1337 } | |
| 1338 __ d2ieee(); | |
| 1339 // Pop double precision number from rsp. | |
| 304 | 1340 __ pop(rax); |
| 1341 __ pop(rdx); | |
| 0 | 1342 } |
| 1343 | |
| 1344 | |
| 1345 void TemplateTable::ineg() { | |
| 1346 transition(itos, itos); | |
| 1347 __ negl(rax); | |
| 1348 } | |
| 1349 | |
| 1350 | |
| 1351 void TemplateTable::lneg() { | |
| 1352 transition(ltos, ltos); | |
| 1353 __ lneg(rdx, rax); | |
| 1354 } | |
| 1355 | |
| 1356 | |
| 1357 void TemplateTable::fneg() { | |
| 1358 transition(ftos, ftos); | |
| 1359 __ fchs(); | |
| 1360 } | |
| 1361 | |
| 1362 | |
| 1363 void TemplateTable::dneg() { | |
| 1364 transition(dtos, dtos); | |
| 1365 __ fchs(); | |
| 1366 } | |
| 1367 | |
| 1368 | |
| 1369 void TemplateTable::iinc() { | |
| 1370 transition(vtos, vtos); | |
| 1371 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
| 1372 locals_index(rbx); | |
| 1373 __ addl(iaddress(rbx), rdx); | |
| 1374 } | |
| 1375 | |
| 1376 | |
| 1377 void TemplateTable::wide_iinc() { | |
| 1378 transition(vtos, vtos); | |
| 1379 __ movl(rdx, at_bcp(4)); // get constant | |
| 1380 locals_index_wide(rbx); | |
| 304 | 1381 __ bswapl(rdx); // swap bytes & sign-extend constant |
| 0 | 1382 __ sarl(rdx, 16); |
| 1383 __ addl(iaddress(rbx), rdx); | |
| 1384 // Note: should probably use only one movl to get both | |
| 1385 // the index and the constant -> fix this | |
| 1386 } | |
| 1387 | |
| 1388 | |
| 1389 void TemplateTable::convert() { | |
| 1390 // Checking | |
| 1391 #ifdef ASSERT | |
| 1392 { TosState tos_in = ilgl; | |
| 1393 TosState tos_out = ilgl; | |
| 1394 switch (bytecode()) { | |
| 1395 case Bytecodes::_i2l: // fall through | |
| 1396 case Bytecodes::_i2f: // fall through | |
| 1397 case Bytecodes::_i2d: // fall through | |
| 1398 case Bytecodes::_i2b: // fall through | |
| 1399 case Bytecodes::_i2c: // fall through | |
| 1400 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1401 case Bytecodes::_l2i: // fall through | |
| 1402 case Bytecodes::_l2f: // fall through | |
| 1403 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1404 case Bytecodes::_f2i: // fall through | |
| 1405 case Bytecodes::_f2l: // fall through | |
| 1406 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1407 case Bytecodes::_d2i: // fall through | |
| 1408 case Bytecodes::_d2l: // fall through | |
| 1409 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1410 default : ShouldNotReachHere(); | |
| 1411 } | |
| 1412 switch (bytecode()) { | |
| 1413 case Bytecodes::_l2i: // fall through | |
| 1414 case Bytecodes::_f2i: // fall through | |
| 1415 case Bytecodes::_d2i: // fall through | |
| 1416 case Bytecodes::_i2b: // fall through | |
| 1417 case Bytecodes::_i2c: // fall through | |
| 1418 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1419 case Bytecodes::_i2l: // fall through | |
| 1420 case Bytecodes::_f2l: // fall through | |
| 1421 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1422 case Bytecodes::_i2f: // fall through | |
| 1423 case Bytecodes::_l2f: // fall through | |
| 1424 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1425 case Bytecodes::_i2d: // fall through | |
| 1426 case Bytecodes::_l2d: // fall through | |
| 1427 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1428 default : ShouldNotReachHere(); | |
| 1429 } | |
| 1430 transition(tos_in, tos_out); | |
| 1431 } | |
| 1432 #endif // ASSERT | |
| 1433 | |
| 1434 // Conversion | |
| 304 | 1435 // (Note: use push(rcx)/pop(rcx) for 1/2-word stack-ptr manipulation) |
| 0 | 1436 switch (bytecode()) { |
| 1437 case Bytecodes::_i2l: | |
| 1438 __ extend_sign(rdx, rax); | |
| 1439 break; | |
| 1440 case Bytecodes::_i2f: | |
| 304 | 1441 __ push(rax); // store int on tos |
| 0 | 1442 __ fild_s(at_rsp()); // load int to ST0 |
| 1443 __ f2ieee(); // truncate to float size | |
| 304 | 1444 __ pop(rcx); // adjust rsp |
| 0 | 1445 break; |
| 1446 case Bytecodes::_i2d: | |
| 304 | 1447 __ push(rax); // add one slot for d2ieee() |
| 1448 __ push(rax); // store int on tos | |
| 0 | 1449 __ fild_s(at_rsp()); // load int to ST0 |
| 1450 __ d2ieee(); // truncate to double size | |
| 304 | 1451 __ pop(rcx); // adjust rsp |
| 1452 __ pop(rcx); | |
| 0 | 1453 break; |
| 1454 case Bytecodes::_i2b: | |
| 1455 __ shll(rax, 24); // truncate upper 24 bits | |
| 1456 __ sarl(rax, 24); // and sign-extend byte | |
| 304 | 1457 LP64_ONLY(__ movsbl(rax, rax)); |
| 0 | 1458 break; |
| 1459 case Bytecodes::_i2c: | |
| 1460 __ andl(rax, 0xFFFF); // truncate upper 16 bits | |
| 304 | 1461 LP64_ONLY(__ movzwl(rax, rax)); |
| 0 | 1462 break; |
| 1463 case Bytecodes::_i2s: | |
| 1464 __ shll(rax, 16); // truncate upper 16 bits | |
| 1465 __ sarl(rax, 16); // and sign-extend short | |
| 304 | 1466 LP64_ONLY(__ movswl(rax, rax)); |
| 0 | 1467 break; |
| 1468 case Bytecodes::_l2i: | |
| 1469 /* nothing to do */ | |
| 1470 break; | |
| 1471 case Bytecodes::_l2f: | |
| 304 | 1472 __ push(rdx); // store long on tos |
| 1473 __ push(rax); | |
| 0 | 1474 __ fild_d(at_rsp()); // load long to ST0 |
| 1475 __ f2ieee(); // truncate to float size | |
| 304 | 1476 __ pop(rcx); // adjust rsp |
| 1477 __ pop(rcx); | |
| 0 | 1478 break; |
| 1479 case Bytecodes::_l2d: | |
| 304 | 1480 __ push(rdx); // store long on tos |
| 1481 __ push(rax); | |
| 0 | 1482 __ fild_d(at_rsp()); // load long to ST0 |
| 1483 __ d2ieee(); // truncate to double size | |
| 304 | 1484 __ pop(rcx); // adjust rsp |
| 1485 __ pop(rcx); | |
| 0 | 1486 break; |
| 1487 case Bytecodes::_f2i: | |
| 304 | 1488 __ push(rcx); // reserve space for argument |
| 0 | 1489 __ fstp_s(at_rsp()); // pass float argument on stack |
| 1490 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
| 1491 break; | |
| 1492 case Bytecodes::_f2l: | |
| 304 | 1493 __ push(rcx); // reserve space for argument |
| 0 | 1494 __ fstp_s(at_rsp()); // pass float argument on stack |
| 1495 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
| 1496 break; | |
| 1497 case Bytecodes::_f2d: | |
| 1498 /* nothing to do */ | |
| 1499 break; | |
| 1500 case Bytecodes::_d2i: | |
| 304 | 1501 __ push(rcx); // reserve space for argument |
| 1502 __ push(rcx); | |
| 0 | 1503 __ fstp_d(at_rsp()); // pass double argument on stack |
| 1504 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 2); | |
| 1505 break; | |
| 1506 case Bytecodes::_d2l: | |
| 304 | 1507 __ push(rcx); // reserve space for argument |
| 1508 __ push(rcx); | |
| 0 | 1509 __ fstp_d(at_rsp()); // pass double argument on stack |
| 1510 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 2); | |
| 1511 break; | |
| 1512 case Bytecodes::_d2f: | |
| 304 | 1513 __ push(rcx); // reserve space for f2ieee() |
| 0 | 1514 __ f2ieee(); // truncate to float size |
| 304 | 1515 __ pop(rcx); // adjust rsp |
| 0 | 1516 break; |
| 1517 default : | |
| 1518 ShouldNotReachHere(); | |
| 1519 } | |
| 1520 } | |
| 1521 | |
| 1522 | |
| 1523 void TemplateTable::lcmp() { | |
| 1524 transition(ltos, itos); | |
| 1525 // y = rdx:rax | |
| 1526 __ pop_l(rbx, rcx); // get x = rcx:rbx | |
| 1527 __ lcmp2int(rcx, rbx, rdx, rax);// rcx := cmp(x, y) | |
| 304 | 1528 __ mov(rax, rcx); |
| 0 | 1529 } |
| 1530 | |
| 1531 | |
| 1532 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1533 if (is_float) { | |
| 1534 __ fld_s(at_rsp()); | |
| 1535 } else { | |
| 1536 __ fld_d(at_rsp()); | |
| 304 | 1537 __ pop(rdx); |
| 0 | 1538 } |
| 304 | 1539 __ pop(rcx); |
| 0 | 1540 __ fcmp2int(rax, unordered_result < 0); |
| 1541 } | |
| 1542 | |
| 1543 | |
| 1544 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1545 __ get_method(rcx); // ECX holds method | |
| 1546 __ profile_taken_branch(rax,rbx); // EAX holds updated MDP, EBX holds bumped taken count | |
| 1547 | |
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1548 const ByteSize be_offset = Method::backedge_counter_offset() + InvocationCounter::counter_offset(); |
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1549 const ByteSize inv_offset = Method::invocation_counter_offset() + InvocationCounter::counter_offset(); |
| 0 | 1550 const int method_offset = frame::interpreter_frame_method_offset * wordSize; |
| 1551 | |
| 1552 // Load up EDX with the branch displacement | |
| 1553 __ movl(rdx, at_bcp(1)); | |
| 304 | 1554 __ bswapl(rdx); |
| 0 | 1555 if (!is_wide) __ sarl(rdx, 16); |
| 304 | 1556 LP64_ONLY(__ movslq(rdx, rdx)); |
| 1557 | |
| 0 | 1558 |
| 1559 // Handle all the JSR stuff here, then exit. | |
| 1560 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1561 // non-JSR normal-branch stuff occurring below. |
| 0 | 1562 if (is_jsr) { |
| 1563 // Pre-load the next target bytecode into EBX | |
| 1564 __ load_unsigned_byte(rbx, Address(rsi, rdx, Address::times_1, 0)); | |
| 1565 | |
| 1566 // compute return address as bci in rax, | |
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1567 __ lea(rax, at_bcp((is_wide ? 5 : 3) - in_bytes(ConstMethod::codes_offset()))); |
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1568 __ subptr(rax, Address(rcx, Method::const_offset())); |
| 362 | 1569 // Adjust the bcp in RSI by the displacement in EDX |
| 304 | 1570 __ addptr(rsi, rdx); |
| 0 | 1571 // Push return address |
| 1572 __ push_i(rax); | |
| 1573 // jsr returns vtos | |
| 1574 __ dispatch_only_noverify(vtos); | |
| 1575 return; | |
| 1576 } | |
| 1577 | |
| 1578 // Normal (non-jsr) branch handling | |
| 1579 | |
| 362 | 1580 // Adjust the bcp in RSI by the displacement in EDX |
| 304 | 1581 __ addptr(rsi, rdx); |
| 0 | 1582 |
| 1583 assert(UseLoopCounter || !UseOnStackReplacement, "on-stack-replacement requires loop counters"); | |
| 1584 Label backedge_counter_overflow; | |
| 1585 Label profile_method; | |
| 1586 Label dispatch; | |
| 1587 if (UseLoopCounter) { | |
| 1588 // increment backedge counter for backward branches | |
| 1589 // rax,: MDO | |
| 1590 // rbx,: MDO bumped taken-count | |
| 1591 // rcx: method | |
| 1592 // rdx: target offset | |
| 1593 // rsi: target bcp | |
| 1594 // rdi: locals pointer | |
| 1595 __ testl(rdx, rdx); // check if forward or backward branch | |
| 1596 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
| 1597 | |
| 1783 | 1598 if (TieredCompilation) { |
| 1599 Label no_mdo; | |
| 1600 int increment = InvocationCounter::count_increment; | |
| 1601 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1602 if (ProfileInterpreter) { | |
| 1603 // Are we profiling? | |
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1604 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
| 1783 | 1605 __ testptr(rbx, rbx); |
| 1606 __ jccb(Assembler::zero, no_mdo); | |
| 1607 // Increment the MDO backedge counter | |
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1608 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1609 in_bytes(InvocationCounter::counter_offset())); |
| 1610 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
| 1611 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 1612 __ jmp(dispatch); | |
| 0 | 1613 } |
| 1783 | 1614 __ bind(no_mdo); |
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1615 // Increment backedge counter in Method* |
| 1783 | 1616 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
| 1617 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 0 | 1618 } else { |
| 1783 | 1619 // increment counter |
| 1620 __ movl(rax, Address(rcx, be_offset)); // load backedge counter | |
| 1621 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
| 1622 __ movl(Address(rcx, be_offset), rax); // store counter | |
| 1623 | |
| 1624 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
| 1625 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits | |
| 1626 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
| 1627 | |
| 1628 if (ProfileInterpreter) { | |
| 1629 // Test to see if we should create a method data oop | |
| 0 | 1630 __ cmp32(rax, |
| 1783 | 1631 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
| 1632 __ jcc(Assembler::less, dispatch); | |
| 1633 | |
| 1634 // if no method data exists, go to profile method | |
| 1635 __ test_method_data_pointer(rax, profile_method); | |
| 1636 | |
| 1637 if (UseOnStackReplacement) { | |
| 1638 // check for overflow against rbx, which is the MDO taken count | |
| 1639 __ cmp32(rbx, | |
| 1640 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1641 __ jcc(Assembler::below, dispatch); | |
| 1642 | |
| 1643 // When ProfileInterpreter is on, the backedge_count comes from the | |
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1644 // MethodData*, which value does not get reset on the call to |
| 1783 | 1645 // frequency_counter_overflow(). To avoid excessive calls to the overflow |
| 1646 // routine while the method is being compiled, add a second test to make | |
| 1647 // sure the overflow function is called only once every overflow_frequency. | |
| 1648 const int overflow_frequency = 1024; | |
| 1649 __ andptr(rbx, overflow_frequency-1); | |
| 1650 __ jcc(Assembler::zero, backedge_counter_overflow); | |
| 1651 } | |
| 1652 } else { | |
| 1653 if (UseOnStackReplacement) { | |
| 1654 // check for overflow against rax, which is the sum of the counters | |
| 1655 __ cmp32(rax, | |
| 1656 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1657 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
| 1658 | |
| 1659 } | |
| 0 | 1660 } |
| 1661 } | |
| 1662 __ bind(dispatch); | |
| 1663 } | |
| 1664 | |
| 1665 // Pre-load the next target bytecode into EBX | |
| 1666 __ load_unsigned_byte(rbx, Address(rsi, 0)); | |
| 1667 | |
| 1668 // continue with the bytecode @ target | |
| 1669 // rax,: return bci for jsr's, unused otherwise | |
| 1670 // rbx,: target bytecode | |
| 1671 // rsi: target bcp | |
| 1672 __ dispatch_only(vtos); | |
| 1673 | |
| 1674 if (UseLoopCounter) { | |
| 1675 if (ProfileInterpreter) { | |
| 1676 // Out-of-line code to allocate method data oop. | |
| 1677 __ bind(profile_method); | |
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1678 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
| 0 | 1679 __ load_unsigned_byte(rbx, Address(rsi, 0)); // restore target bytecode |
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1680 __ set_method_data_pointer_for_bcp(); |
| 0 | 1681 __ jmp(dispatch); |
| 1682 } | |
| 1683 | |
| 1684 if (UseOnStackReplacement) { | |
| 1685 | |
| 1686 // invocation counter overflow | |
| 1687 __ bind(backedge_counter_overflow); | |
| 304 | 1688 __ negptr(rdx); |
| 1689 __ addptr(rdx, rsi); // branch bcp | |
| 0 | 1690 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), rdx); |
| 1691 __ load_unsigned_byte(rbx, Address(rsi, 0)); // restore target bytecode | |
| 1692 | |
| 1693 // rax,: osr nmethod (osr ok) or NULL (osr not possible) | |
| 1694 // rbx,: target bytecode | |
| 1695 // rdx: scratch | |
| 1696 // rdi: locals pointer | |
| 1697 // rsi: bcp | |
| 304 | 1698 __ testptr(rax, rax); // test result |
| 0 | 1699 __ jcc(Assembler::zero, dispatch); // no osr if null |
| 1700 // nmethod may have been invalidated (VM may block upon call_VM return) | |
| 1701 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
| 1702 __ cmpl(rcx, InvalidOSREntryBci); | |
| 1703 __ jcc(Assembler::equal, dispatch); | |
| 1704 | |
| 1705 // We have the address of an on stack replacement routine in rax, | |
| 1706 // We need to prepare to execute the OSR method. First we must | |
| 1707 // migrate the locals and monitors off of the stack. | |
| 1708 | |
| 304 | 1709 __ mov(rbx, rax); // save the nmethod |
| 0 | 1710 |
| 1711 const Register thread = rcx; | |
| 1712 __ get_thread(thread); | |
| 1713 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
| 1714 // rax, is OSR buffer, move it to expected parameter location | |
| 304 | 1715 __ mov(rcx, rax); |
| 0 | 1716 |
| 1717 // pop the interpreter frame | |
| 304 | 1718 __ movptr(rdx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1719 __ leave(); // remove frame anchor |
| 304 | 1720 __ pop(rdi); // get return address |
| 1721 __ mov(rsp, rdx); // set sp to sender sp | |
| 0 | 1722 |
| 1723 // Align stack pointer for compiled code (note that caller is | |
| 1724 // responsible for undoing this fixup by remembering the old SP | |
| 1725 // in an rbp,-relative location) | |
| 304 | 1726 __ andptr(rsp, -(StackAlignmentInBytes)); |
| 0 | 1727 |
| 1728 // push the (possibly adjusted) return address | |
| 304 | 1729 __ push(rdi); |
| 0 | 1730 |
| 1731 // and begin the OSR nmethod | |
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1732 __ jmp(Address(rbx, nmethod::osr_entry_point_offset())); |
| 0 | 1733 } |
| 1734 } | |
| 1735 } | |
| 1736 | |
| 1737 | |
| 1738 void TemplateTable::if_0cmp(Condition cc) { | |
| 1739 transition(itos, vtos); | |
| 1740 // assume branch is more often taken than not (loops use backward branches) | |
| 1741 Label not_taken; | |
| 1742 __ testl(rax, rax); | |
| 1743 __ jcc(j_not(cc), not_taken); | |
| 1744 branch(false, false); | |
| 1745 __ bind(not_taken); | |
| 1746 __ profile_not_taken_branch(rax); | |
| 1747 } | |
| 1748 | |
| 1749 | |
| 1750 void TemplateTable::if_icmp(Condition cc) { | |
| 1751 transition(itos, vtos); | |
| 1752 // assume branch is more often taken than not (loops use backward branches) | |
| 1753 Label not_taken; | |
| 1754 __ pop_i(rdx); | |
| 1755 __ cmpl(rdx, rax); | |
| 1756 __ jcc(j_not(cc), not_taken); | |
| 1757 branch(false, false); | |
| 1758 __ bind(not_taken); | |
| 1759 __ profile_not_taken_branch(rax); | |
| 1760 } | |
| 1761 | |
| 1762 | |
| 1763 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1764 transition(atos, vtos); | |
| 1765 // assume branch is more often taken than not (loops use backward branches) | |
| 1766 Label not_taken; | |
| 304 | 1767 __ testptr(rax, rax); |
| 0 | 1768 __ jcc(j_not(cc), not_taken); |
| 1769 branch(false, false); | |
| 1770 __ bind(not_taken); | |
| 1771 __ profile_not_taken_branch(rax); | |
| 1772 } | |
| 1773 | |
| 1774 | |
| 1775 void TemplateTable::if_acmp(Condition cc) { | |
| 1776 transition(atos, vtos); | |
| 1777 // assume branch is more often taken than not (loops use backward branches) | |
| 1778 Label not_taken; | |
| 1779 __ pop_ptr(rdx); | |
| 304 | 1780 __ cmpptr(rdx, rax); |
| 0 | 1781 __ jcc(j_not(cc), not_taken); |
| 1782 branch(false, false); | |
| 1783 __ bind(not_taken); | |
| 1784 __ profile_not_taken_branch(rax); | |
| 1785 } | |
| 1786 | |
| 1787 | |
| 1788 void TemplateTable::ret() { | |
| 1789 transition(vtos, vtos); | |
| 1790 locals_index(rbx); | |
| 304 | 1791 __ movptr(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1792 __ profile_ret(rbx, rcx); |
| 1793 __ get_method(rax); | |
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1794 __ movptr(rsi, Address(rax, Method::const_offset())); |
| 304 | 1795 __ lea(rsi, Address(rsi, rbx, Address::times_1, |
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1796 ConstMethod::codes_offset())); |
| 0 | 1797 __ dispatch_next(vtos); |
| 1798 } | |
| 1799 | |
| 1800 | |
| 1801 void TemplateTable::wide_ret() { | |
| 1802 transition(vtos, vtos); | |
| 1803 locals_index_wide(rbx); | |
| 304 | 1804 __ movptr(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1805 __ profile_ret(rbx, rcx); |
| 1806 __ get_method(rax); | |
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1807 __ movptr(rsi, Address(rax, Method::const_offset())); |
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1808 __ lea(rsi, Address(rsi, rbx, Address::times_1, ConstMethod::codes_offset())); |
| 0 | 1809 __ dispatch_next(vtos); |
| 1810 } | |
| 1811 | |
| 1812 | |
| 1813 void TemplateTable::tableswitch() { | |
| 1814 Label default_case, continue_execution; | |
| 1815 transition(itos, vtos); | |
| 1816 // align rsi | |
| 304 | 1817 __ lea(rbx, at_bcp(wordSize)); |
| 1818 __ andptr(rbx, -wordSize); | |
| 0 | 1819 // load lo & hi |
| 1820 __ movl(rcx, Address(rbx, 1 * wordSize)); | |
| 1821 __ movl(rdx, Address(rbx, 2 * wordSize)); | |
| 304 | 1822 __ bswapl(rcx); |
| 1823 __ bswapl(rdx); | |
| 0 | 1824 // check against lo & hi |
| 1825 __ cmpl(rax, rcx); | |
| 1826 __ jccb(Assembler::less, default_case); | |
| 1827 __ cmpl(rax, rdx); | |
| 1828 __ jccb(Assembler::greater, default_case); | |
| 1829 // lookup dispatch offset | |
| 1830 __ subl(rax, rcx); | |
| 304 | 1831 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); |
| 0 | 1832 __ profile_switch_case(rax, rbx, rcx); |
| 1833 // continue execution | |
| 1834 __ bind(continue_execution); | |
| 304 | 1835 __ bswapl(rdx); |
| 0 | 1836 __ load_unsigned_byte(rbx, Address(rsi, rdx, Address::times_1)); |
| 304 | 1837 __ addptr(rsi, rdx); |
| 0 | 1838 __ dispatch_only(vtos); |
| 1839 // handle default | |
| 1840 __ bind(default_case); | |
| 1841 __ profile_switch_default(rax); | |
| 1842 __ movl(rdx, Address(rbx, 0)); | |
| 1843 __ jmp(continue_execution); | |
| 1844 } | |
| 1845 | |
| 1846 | |
| 1847 void TemplateTable::lookupswitch() { | |
| 1848 transition(itos, itos); | |
| 1849 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1850 } | |
| 1851 | |
| 1852 | |
| 1853 void TemplateTable::fast_linearswitch() { | |
| 1854 transition(itos, vtos); | |
| 1855 Label loop_entry, loop, found, continue_execution; | |
| 304 | 1856 // bswapl rax, so we can avoid bswapping the table entries |
| 1857 __ bswapl(rax); | |
| 0 | 1858 // align rsi |
| 304 | 1859 __ lea(rbx, at_bcp(wordSize)); // btw: should be able to get rid of this instruction (change offsets below) |
| 1860 __ andptr(rbx, -wordSize); | |
| 0 | 1861 // set counter |
| 1862 __ movl(rcx, Address(rbx, wordSize)); | |
| 304 | 1863 __ bswapl(rcx); |
| 0 | 1864 __ jmpb(loop_entry); |
| 1865 // table search | |
| 1866 __ bind(loop); | |
| 1867 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * wordSize)); | |
| 1868 __ jccb(Assembler::equal, found); | |
| 1869 __ bind(loop_entry); | |
| 304 | 1870 __ decrementl(rcx); |
| 0 | 1871 __ jcc(Assembler::greaterEqual, loop); |
| 1872 // default case | |
| 1873 __ profile_switch_default(rax); | |
| 1874 __ movl(rdx, Address(rbx, 0)); | |
| 1875 __ jmpb(continue_execution); | |
| 1876 // entry found -> get offset | |
| 1877 __ bind(found); | |
| 1878 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * wordSize)); | |
| 1879 __ profile_switch_case(rcx, rax, rbx); | |
| 1880 // continue execution | |
| 1881 __ bind(continue_execution); | |
| 304 | 1882 __ bswapl(rdx); |
| 0 | 1883 __ load_unsigned_byte(rbx, Address(rsi, rdx, Address::times_1)); |
| 304 | 1884 __ addptr(rsi, rdx); |
| 0 | 1885 __ dispatch_only(vtos); |
| 1886 } | |
| 1887 | |
| 1888 | |
| 1889 void TemplateTable::fast_binaryswitch() { | |
| 1890 transition(itos, vtos); | |
| 1891 // Implementation using the following core algorithm: | |
| 1892 // | |
| 1893 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1894 // // Binary search according to "Methodik des Programmierens" by | |
| 1895 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1896 // int i = 0; | |
| 1897 // int j = n; | |
| 1898 // while (i+1 < j) { | |
| 1899 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1900 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1901 // // where a stands for the array and assuming that the (inexisting) | |
| 1902 // // element a[n] is infinitely big. | |
| 1903 // int h = (i + j) >> 1; | |
| 1904 // // i < h < j | |
| 1905 // if (key < array[h].fast_match()) { | |
| 1906 // j = h; | |
| 1907 // } else { | |
| 1908 // i = h; | |
| 1909 // } | |
| 1910 // } | |
| 1911 // // R: a[i] <= key < a[i+1] or Q | |
| 1912 // // (i.e., if key is within array, i is the correct index) | |
| 1913 // return i; | |
| 1914 // } | |
| 1915 | |
| 1916 // register allocation | |
| 1917 const Register key = rax; // already set (tosca) | |
| 1918 const Register array = rbx; | |
| 1919 const Register i = rcx; | |
| 1920 const Register j = rdx; | |
| 1921 const Register h = rdi; // needs to be restored | |
| 1922 const Register temp = rsi; | |
| 1923 // setup array | |
| 1924 __ save_bcp(); | |
| 1925 | |
| 304 | 1926 __ lea(array, at_bcp(3*wordSize)); // btw: should be able to get rid of this instruction (change offsets below) |
| 1927 __ andptr(array, -wordSize); | |
| 0 | 1928 // initialize i & j |
| 1929 __ xorl(i, i); // i = 0; | |
| 1930 __ movl(j, Address(array, -wordSize)); // j = length(array); | |
| 1931 // Convert j into native byteordering | |
| 304 | 1932 __ bswapl(j); |
| 0 | 1933 // and start |
| 1934 Label entry; | |
| 1935 __ jmp(entry); | |
| 1936 | |
| 1937 // binary search loop | |
| 1938 { Label loop; | |
| 1939 __ bind(loop); | |
| 1940 // int h = (i + j) >> 1; | |
| 1941 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
| 1942 __ sarl(h, 1); // h = (i + j) >> 1; | |
| 1943 // if (key < array[h].fast_match()) { | |
| 1944 // j = h; | |
| 1945 // } else { | |
| 1946 // i = h; | |
| 1947 // } | |
| 1948 // Convert array[h].match to native byte-ordering before compare | |
| 1949 __ movl(temp, Address(array, h, Address::times_8, 0*wordSize)); | |
| 304 | 1950 __ bswapl(temp); |
| 0 | 1951 __ cmpl(key, temp); |
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1952 // j = h if (key < array[h].fast_match()) |
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1953 __ cmov32(Assembler::less , j, h); |
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1954 // i = h if (key >= array[h].fast_match()) |
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1955 __ cmov32(Assembler::greaterEqual, i, h); |
| 0 | 1956 // while (i+1 < j) |
| 1957 __ bind(entry); | |
| 1958 __ leal(h, Address(i, 1)); // i+1 | |
| 1959 __ cmpl(h, j); // i+1 < j | |
| 1960 __ jcc(Assembler::less, loop); | |
| 1961 } | |
| 1962 | |
| 1963 // end of binary search, result index is i (must check again!) | |
| 1964 Label default_case; | |
| 1965 // Convert array[i].match to native byte-ordering before compare | |
| 1966 __ movl(temp, Address(array, i, Address::times_8, 0*wordSize)); | |
| 304 | 1967 __ bswapl(temp); |
| 0 | 1968 __ cmpl(key, temp); |
| 1969 __ jcc(Assembler::notEqual, default_case); | |
| 1970 | |
| 1971 // entry found -> j = offset | |
| 1972 __ movl(j , Address(array, i, Address::times_8, 1*wordSize)); | |
| 1973 __ profile_switch_case(i, key, array); | |
| 304 | 1974 __ bswapl(j); |
| 1975 LP64_ONLY(__ movslq(j, j)); | |
| 0 | 1976 __ restore_bcp(); |
| 1977 __ restore_locals(); // restore rdi | |
| 1978 __ load_unsigned_byte(rbx, Address(rsi, j, Address::times_1)); | |
| 1979 | |
| 304 | 1980 __ addptr(rsi, j); |
| 0 | 1981 __ dispatch_only(vtos); |
| 1982 | |
| 1983 // default case -> j = default offset | |
| 1984 __ bind(default_case); | |
| 1985 __ profile_switch_default(i); | |
| 1986 __ movl(j, Address(array, -2*wordSize)); | |
| 304 | 1987 __ bswapl(j); |
| 1988 LP64_ONLY(__ movslq(j, j)); | |
| 0 | 1989 __ restore_bcp(); |
| 1990 __ restore_locals(); // restore rdi | |
| 1991 __ load_unsigned_byte(rbx, Address(rsi, j, Address::times_1)); | |
| 304 | 1992 __ addptr(rsi, j); |
| 0 | 1993 __ dispatch_only(vtos); |
| 1994 } | |
| 1995 | |
| 1996 | |
| 1997 void TemplateTable::_return(TosState state) { | |
| 1998 transition(state, state); | |
| 1999 assert(_desc->calls_vm(), "inconsistent calls_vm information"); // call in remove_activation | |
| 2000 | |
| 2001 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2002 assert(state == vtos, "only valid state"); | |
| 304 | 2003 __ movptr(rax, aaddress(0)); |
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2004 __ load_klass(rdi, rax); |
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2005 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
| 0 | 2006 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
| 2007 Label skip_register_finalizer; | |
| 2008 __ jcc(Assembler::zero, skip_register_finalizer); | |
| 2009 | |
| 2010 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), rax); | |
| 2011 | |
| 2012 __ bind(skip_register_finalizer); | |
| 2013 } | |
| 2014 | |
| 2015 __ remove_activation(state, rsi); | |
| 2016 __ jmp(rsi); | |
| 2017 } | |
| 2018 | |
| 2019 | |
| 2020 // ---------------------------------------------------------------------------- | |
| 2021 // Volatile variables demand their effects be made known to all CPU's in | |
| 2022 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 2023 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 2024 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 2025 // reorder volatile references, the hardware also must not reorder them). | |
| 2026 // | |
| 2027 // According to the new Java Memory Model (JMM): | |
| 2028 // (1) All volatiles are serialized wrt to each other. | |
| 2029 // ALSO reads & writes act as aquire & release, so: | |
| 2030 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 2031 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 2032 // that happen before the volatile read to float down below it. | |
| 2033 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 2034 // that happen BEFORE the write float down to after the write. It's OK for | |
| 2035 // non-volatile memory refs that happen after the volatile write to float up | |
| 2036 // before it. | |
| 2037 // | |
| 2038 // We only put in barriers around volatile refs (they are expensive), not | |
| 2039 // _between_ memory refs (that would require us to track the flavor of the | |
| 2040 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 2041 // before volatile stores and after volatile loads. These nearly cover | |
| 2042 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 2043 // case is placed after volatile-stores although it could just as well go | |
| 2044 // before volatile-loads. | |
| 304 | 2045 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint ) { |
| 0 | 2046 // Helper function to insert a is-volatile test and memory barrier |
| 2047 if( !os::is_MP() ) return; // Not needed on single CPU | |
| 304 | 2048 __ membar(order_constraint); |
| 0 | 2049 } |
| 2050 | |
| 1565 | 2051 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2052 Register Rcache, | |
| 2053 Register index, | |
| 2054 size_t index_size) { | |
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2055 const Register temp = rbx; |
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2056 assert_different_registers(Rcache, index, temp); |
| 1565 | 2057 |
| 0 | 2058 Label resolved; |
| 1565 | 2059 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2060 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2061 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
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2062 __ jcc(Assembler::equal, resolved); |
| 0 | 2063 |
| 2064 // resolve first time through | |
| 2065 address entry; | |
| 2066 switch (bytecode()) { | |
| 2067 case Bytecodes::_getstatic : // fall through | |
| 2068 case Bytecodes::_putstatic : // fall through | |
| 2069 case Bytecodes::_getfield : // fall through | |
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2070 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; |
| 0 | 2071 case Bytecodes::_invokevirtual : // fall through |
| 2072 case Bytecodes::_invokespecial : // fall through | |
| 2073 case Bytecodes::_invokestatic : // fall through | |
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2074 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; |
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2075 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
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2076 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2077 default: |
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2078 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2079 break; |
| 0 | 2080 } |
| 2081 __ movl(temp, (int)bytecode()); | |
| 2082 __ call_VM(noreg, entry, temp); | |
| 2083 // Update registers with resolved info | |
| 1565 | 2084 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2085 __ bind(resolved); |
| 2086 } | |
| 2087 | |
| 2088 | |
| 2089 // The cache and index registers must be set before call | |
| 2090 void TemplateTable::load_field_cp_cache_entry(Register obj, | |
| 2091 Register cache, | |
| 2092 Register index, | |
| 2093 Register off, | |
| 2094 Register flags, | |
| 2095 bool is_static = false) { | |
| 2096 assert_different_registers(cache, index, flags, off); | |
| 2097 | |
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2098 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2099 // Field offset |
| 304 | 2100 __ movptr(off, Address(cache, index, Address::times_ptr, |
| 2101 in_bytes(cp_base_offset + ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2102 // Flags |
| 304 | 2103 __ movl(flags, Address(cache, index, Address::times_ptr, |
| 0 | 2104 in_bytes(cp_base_offset + ConstantPoolCacheEntry::flags_offset()))); |
| 2105 | |
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2106 // klass overwrite register |
| 0 | 2107 if (is_static) { |
| 304 | 2108 __ movptr(obj, Address(cache, index, Address::times_ptr, |
| 2109 in_bytes(cp_base_offset + ConstantPoolCacheEntry::f1_offset()))); | |
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2110 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2111 __ movptr(obj, Address(obj, mirror_offset)); |
| 0 | 2112 } |
| 2113 } | |
| 2114 | |
| 2115 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2116 Register method, | |
| 2117 Register itable_index, | |
| 2118 Register flags, | |
| 2119 bool is_invokevirtual, | |
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2120 bool is_invokevfinal, /*unused*/ |
| 1565 | 2121 bool is_invokedynamic) { |
| 0 | 2122 // setup registers |
| 2123 const Register cache = rcx; | |
| 2124 const Register index = rdx; | |
| 2125 assert_different_registers(method, flags); | |
| 2126 assert_different_registers(method, cache, index); | |
| 2127 assert_different_registers(itable_index, flags); | |
| 2128 assert_different_registers(itable_index, cache, index); | |
| 2129 // determine constant pool cache field offsets | |
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2130 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2131 const int method_offset = in_bytes( |
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2132 ConstantPoolCache::base_offset() + |
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2133 ((byte_no == f2_byte) |
| 0 | 2134 ? ConstantPoolCacheEntry::f2_offset() |
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2135 : ConstantPoolCacheEntry::f1_offset())); |
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2136 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2137 ConstantPoolCacheEntry::flags_offset()); |
| 2138 // access constant pool cache fields | |
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2139 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2140 ConstantPoolCacheEntry::f2_offset()); |
| 2141 | |
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2142 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2143 resolve_cache_and_index(byte_no, cache, index, index_size); |
| 1565 | 2144 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2145 |
| 0 | 2146 if (itable_index != noreg) { |
| 304 | 2147 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
| 0 | 2148 } |
| 1565 | 2149 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
| 0 | 2150 } |
| 2151 | |
| 2152 | |
| 2153 // The registers cache and index expected to be set before call. | |
| 2154 // Correct values of the cache and index registers are preserved. | |
| 2155 void TemplateTable::jvmti_post_field_access(Register cache, | |
| 2156 Register index, | |
| 2157 bool is_static, | |
| 2158 bool has_tos) { | |
| 2159 if (JvmtiExport::can_post_field_access()) { | |
| 2160 // Check to see if a field access watch has been set before we take | |
| 2161 // the time to call into the VM. | |
| 2162 Label L1; | |
| 2163 assert_different_registers(cache, index, rax); | |
| 2164 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2165 __ testl(rax,rax); | |
| 2166 __ jcc(Assembler::zero, L1); | |
| 2167 | |
| 2168 // cache entry pointer | |
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2169 __ addptr(cache, in_bytes(ConstantPoolCache::base_offset())); |
| 0 | 2170 __ shll(index, LogBytesPerWord); |
| 304 | 2171 __ addptr(cache, index); |
| 0 | 2172 if (is_static) { |
| 304 | 2173 __ xorptr(rax, rax); // NULL object reference |
| 0 | 2174 } else { |
| 2175 __ pop(atos); // Get the object | |
| 2176 __ verify_oop(rax); | |
| 2177 __ push(atos); // Restore stack state | |
| 2178 } | |
| 2179 // rax,: object pointer or NULL | |
| 2180 // cache: cache entry pointer | |
| 2181 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2182 rax, cache); | |
| 2183 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2184 __ bind(L1); | |
| 2185 } | |
| 2186 } | |
| 2187 | |
| 2188 void TemplateTable::pop_and_check_object(Register r) { | |
| 2189 __ pop_ptr(r); | |
| 2190 __ null_check(r); // for field access must check obj. | |
| 2191 __ verify_oop(r); | |
| 2192 } | |
| 2193 | |
| 2194 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2195 transition(vtos, vtos); | |
| 2196 | |
| 2197 const Register cache = rcx; | |
| 2198 const Register index = rdx; | |
| 2199 const Register obj = rcx; | |
| 2200 const Register off = rbx; | |
| 2201 const Register flags = rax; | |
| 2202 | |
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2203 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2204 jvmti_post_field_access(cache, index, is_static, false); |
| 2205 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2206 | |
| 2207 if (!is_static) pop_and_check_object(obj); | |
| 2208 | |
| 2209 const Address lo(obj, off, Address::times_1, 0*wordSize); | |
| 2210 const Address hi(obj, off, Address::times_1, 1*wordSize); | |
| 2211 | |
| 2212 Label Done, notByte, notInt, notShort, notChar, notLong, notFloat, notObj, notDouble; | |
| 2213 | |
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2214 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2215 assert(btos == 0, "change code, btos != 0"); |
| 2216 // btos | |
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2217 __ andptr(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2218 __ jcc(Assembler::notZero, notByte); |
| 2219 | |
| 2220 __ load_signed_byte(rax, lo ); | |
| 2221 __ push(btos); | |
| 2222 // Rewrite bytecode to be faster | |
| 2223 if (!is_static) { | |
| 2224 patch_bytecode(Bytecodes::_fast_bgetfield, rcx, rbx); | |
| 2225 } | |
| 2226 __ jmp(Done); | |
| 2227 | |
| 2228 __ bind(notByte); | |
| 2229 // itos | |
| 2230 __ cmpl(flags, itos ); | |
| 2231 __ jcc(Assembler::notEqual, notInt); | |
| 2232 | |
| 2233 __ movl(rax, lo ); | |
| 2234 __ push(itos); | |
| 2235 // Rewrite bytecode to be faster | |
| 2236 if (!is_static) { | |
| 2237 patch_bytecode(Bytecodes::_fast_igetfield, rcx, rbx); | |
| 2238 } | |
| 2239 __ jmp(Done); | |
| 2240 | |
| 2241 __ bind(notInt); | |
| 2242 // atos | |
| 2243 __ cmpl(flags, atos ); | |
| 2244 __ jcc(Assembler::notEqual, notObj); | |
| 2245 | |
| 2246 __ movl(rax, lo ); | |
| 2247 __ push(atos); | |
| 2248 if (!is_static) { | |
| 2249 patch_bytecode(Bytecodes::_fast_agetfield, rcx, rbx); | |
| 2250 } | |
| 2251 __ jmp(Done); | |
| 2252 | |
| 2253 __ bind(notObj); | |
| 2254 // ctos | |
| 2255 __ cmpl(flags, ctos ); | |
| 2256 __ jcc(Assembler::notEqual, notChar); | |
| 2257 | |
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2258 __ load_unsigned_short(rax, lo ); |
| 0 | 2259 __ push(ctos); |
| 2260 if (!is_static) { | |
| 2261 patch_bytecode(Bytecodes::_fast_cgetfield, rcx, rbx); | |
| 2262 } | |
| 2263 __ jmp(Done); | |
| 2264 | |
| 2265 __ bind(notChar); | |
| 2266 // stos | |
| 2267 __ cmpl(flags, stos ); | |
| 2268 __ jcc(Assembler::notEqual, notShort); | |
| 2269 | |
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2270 __ load_signed_short(rax, lo ); |
| 0 | 2271 __ push(stos); |
| 2272 if (!is_static) { | |
| 2273 patch_bytecode(Bytecodes::_fast_sgetfield, rcx, rbx); | |
| 2274 } | |
| 2275 __ jmp(Done); | |
| 2276 | |
| 2277 __ bind(notShort); | |
| 2278 // ltos | |
| 2279 __ cmpl(flags, ltos ); | |
| 2280 __ jcc(Assembler::notEqual, notLong); | |
| 2281 | |
| 2282 // Generate code as if volatile. There just aren't enough registers to | |
| 2283 // save that information and this code is faster than the test. | |
| 2284 __ fild_d(lo); // Must load atomically | |
| 304 | 2285 __ subptr(rsp,2*wordSize); // Make space for store |
| 0 | 2286 __ fistp_d(Address(rsp,0)); |
| 304 | 2287 __ pop(rax); |
| 2288 __ pop(rdx); | |
| 0 | 2289 |
| 2290 __ push(ltos); | |
| 2291 // Don't rewrite to _fast_lgetfield for potential volatile case. | |
| 2292 __ jmp(Done); | |
| 2293 | |
| 2294 __ bind(notLong); | |
| 2295 // ftos | |
| 2296 __ cmpl(flags, ftos ); | |
| 2297 __ jcc(Assembler::notEqual, notFloat); | |
| 2298 | |
| 2299 __ fld_s(lo); | |
| 2300 __ push(ftos); | |
| 2301 if (!is_static) { | |
| 2302 patch_bytecode(Bytecodes::_fast_fgetfield, rcx, rbx); | |
| 2303 } | |
| 2304 __ jmp(Done); | |
| 2305 | |
| 2306 __ bind(notFloat); | |
| 2307 // dtos | |
| 2308 __ cmpl(flags, dtos ); | |
| 2309 __ jcc(Assembler::notEqual, notDouble); | |
| 2310 | |
| 2311 __ fld_d(lo); | |
| 2312 __ push(dtos); | |
| 2313 if (!is_static) { | |
| 2314 patch_bytecode(Bytecodes::_fast_dgetfield, rcx, rbx); | |
| 2315 } | |
| 2316 __ jmpb(Done); | |
| 2317 | |
| 2318 __ bind(notDouble); | |
| 2319 | |
| 2320 __ stop("Bad state"); | |
| 2321 | |
| 2322 __ bind(Done); | |
| 2323 // Doug Lea believes this is not needed with current Sparcs (TSO) and Intel (PSO). | |
| 2324 // volatile_barrier( ); | |
| 2325 } | |
| 2326 | |
| 2327 | |
| 2328 void TemplateTable::getfield(int byte_no) { | |
| 2329 getfield_or_static(byte_no, false); | |
| 2330 } | |
| 2331 | |
| 2332 | |
| 2333 void TemplateTable::getstatic(int byte_no) { | |
| 2334 getfield_or_static(byte_no, true); | |
| 2335 } | |
| 2336 | |
| 2337 // The registers cache and index expected to be set before call. | |
| 2338 // The function may destroy various registers, just not the cache and index registers. | |
| 2339 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
| 2340 | |
|
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2341 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2342 |
| 2343 if (JvmtiExport::can_post_field_modification()) { | |
| 2344 // Check to see if a field modification watch has been set before we take | |
| 2345 // the time to call into the VM. | |
| 2346 Label L1; | |
| 2347 assert_different_registers(cache, index, rax); | |
| 2348 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2349 __ testl(rax, rax); | |
| 2350 __ jcc(Assembler::zero, L1); | |
| 2351 | |
| 2352 // The cache and index registers have been already set. | |
| 2353 // This allows to eliminate this call but the cache and index | |
| 2354 // registers have to be correspondingly used after this line. | |
| 2355 __ get_cache_and_index_at_bcp(rax, rdx, 1); | |
| 2356 | |
| 2357 if (is_static) { | |
| 2358 // Life is simple. Null out the object pointer. | |
| 304 | 2359 __ xorptr(rbx, rbx); |
| 0 | 2360 } else { |
| 2361 // Life is harder. The stack holds the value on top, followed by the object. | |
| 2362 // We don't know the size of the value, though; it could be one or two words | |
| 2363 // depending on its type. As a result, we must find the type to determine where | |
| 2364 // the object is. | |
| 2365 Label two_word, valsize_known; | |
| 304 | 2366 __ movl(rcx, Address(rax, rdx, Address::times_ptr, in_bytes(cp_base_offset + |
| 0 | 2367 ConstantPoolCacheEntry::flags_offset()))); |
| 304 | 2368 __ mov(rbx, rsp); |
|
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2369 __ shrl(rcx, ConstantPoolCacheEntry::tos_state_shift); |
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2370 // Make sure we don't need to mask rcx after the above shift |
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2371 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2372 __ cmpl(rcx, ltos); |
| 2373 __ jccb(Assembler::equal, two_word); | |
| 2374 __ cmpl(rcx, dtos); | |
| 2375 __ jccb(Assembler::equal, two_word); | |
| 304 | 2376 __ addptr(rbx, Interpreter::expr_offset_in_bytes(1)); // one word jvalue (not ltos, dtos) |
| 0 | 2377 __ jmpb(valsize_known); |
| 2378 | |
| 2379 __ bind(two_word); | |
| 304 | 2380 __ addptr(rbx, Interpreter::expr_offset_in_bytes(2)); // two words jvalue |
| 0 | 2381 |
| 2382 __ bind(valsize_known); | |
| 2383 // setup object pointer | |
| 304 | 2384 __ movptr(rbx, Address(rbx, 0)); |
| 0 | 2385 } |
| 2386 // cache entry pointer | |
| 304 | 2387 __ addptr(rax, in_bytes(cp_base_offset)); |
| 0 | 2388 __ shll(rdx, LogBytesPerWord); |
| 304 | 2389 __ addptr(rax, rdx); |
| 0 | 2390 // object (tos) |
| 304 | 2391 __ mov(rcx, rsp); |
| 0 | 2392 // rbx,: object pointer set up above (NULL if static) |
| 2393 // rax,: cache entry pointer | |
| 2394 // rcx: jvalue object on the stack | |
| 2395 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2396 rbx, rax, rcx); | |
| 2397 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2398 __ bind(L1); | |
| 2399 } | |
| 2400 } | |
| 2401 | |
| 2402 | |
| 2403 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2404 transition(vtos, vtos); | |
| 2405 | |
| 2406 const Register cache = rcx; | |
| 2407 const Register index = rdx; | |
| 2408 const Register obj = rcx; | |
| 2409 const Register off = rbx; | |
| 2410 const Register flags = rax; | |
| 2411 | |
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2412 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2413 jvmti_post_field_mod(cache, index, is_static); |
| 2414 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2415 | |
| 2416 // Doug Lea believes this is not needed with current Sparcs (TSO) and Intel (PSO). | |
| 2417 // volatile_barrier( ); | |
| 2418 | |
| 2419 Label notVolatile, Done; | |
| 2420 __ movl(rdx, flags); | |
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2421 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2422 __ andl(rdx, 0x1); |
| 2423 | |
| 2424 // field addresses | |
| 2425 const Address lo(obj, off, Address::times_1, 0*wordSize); | |
| 2426 const Address hi(obj, off, Address::times_1, 1*wordSize); | |
| 2427 | |
| 2428 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj, notDouble; | |
| 2429 | |
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2430 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2431 assert(btos == 0, "change code, btos != 0"); |
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2432 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2433 __ jcc(Assembler::notZero, notByte); |
| 2434 | |
|
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2435 // btos |
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2436 { |
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2437 __ pop(btos); |
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2438 if (!is_static) pop_and_check_object(obj); |
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2439 __ movb(lo, rax); |
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2440 if (!is_static) { |
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2441 patch_bytecode(Bytecodes::_fast_bputfield, rcx, rbx, true, byte_no); |
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2442 } |
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2443 __ jmp(Done); |
| 0 | 2444 } |
| 2445 | |
| 2446 __ bind(notByte); | |
|
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2447 __ cmpl(flags, itos); |
| 0 | 2448 __ jcc(Assembler::notEqual, notInt); |
| 2449 | |
|
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2450 // itos |
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2451 { |
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2452 __ pop(itos); |
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2453 if (!is_static) pop_and_check_object(obj); |
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2454 __ movl(lo, rax); |
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2455 if (!is_static) { |
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2456 patch_bytecode(Bytecodes::_fast_iputfield, rcx, rbx, true, byte_no); |
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2457 } |
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2458 __ jmp(Done); |
| 0 | 2459 } |
| 2460 | |
| 2461 __ bind(notInt); | |
|
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2462 __ cmpl(flags, atos); |
| 0 | 2463 __ jcc(Assembler::notEqual, notObj); |
| 2464 | |
|
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2465 // atos |
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2466 { |
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2467 __ pop(atos); |
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2468 if (!is_static) pop_and_check_object(obj); |
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2469 do_oop_store(_masm, lo, rax, _bs->kind(), false); |
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2470 if (!is_static) { |
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2471 patch_bytecode(Bytecodes::_fast_aputfield, rcx, rbx, true, byte_no); |
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2472 } |
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2473 __ jmp(Done); |
| 0 | 2474 } |
|
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2475 |
| 0 | 2476 __ bind(notObj); |
|
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2477 __ cmpl(flags, ctos); |
| 0 | 2478 __ jcc(Assembler::notEqual, notChar); |
| 2479 | |
|
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2480 // ctos |
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2481 { |
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2482 __ pop(ctos); |
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2483 if (!is_static) pop_and_check_object(obj); |
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2484 __ movw(lo, rax); |
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2485 if (!is_static) { |
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2486 patch_bytecode(Bytecodes::_fast_cputfield, rcx, rbx, true, byte_no); |
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2487 } |
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2488 __ jmp(Done); |
| 0 | 2489 } |
| 2490 | |
| 2491 __ bind(notChar); | |
|
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2492 __ cmpl(flags, stos); |
| 0 | 2493 __ jcc(Assembler::notEqual, notShort); |
| 2494 | |
|
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2495 // stos |
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2496 { |
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2497 __ pop(stos); |
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2498 if (!is_static) pop_and_check_object(obj); |
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2499 __ movw(lo, rax); |
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2500 if (!is_static) { |
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2501 patch_bytecode(Bytecodes::_fast_sputfield, rcx, rbx, true, byte_no); |
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2502 } |
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2503 __ jmp(Done); |
| 0 | 2504 } |
| 2505 | |
| 2506 __ bind(notShort); | |
|
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2507 __ cmpl(flags, ltos); |
| 0 | 2508 __ jcc(Assembler::notEqual, notLong); |
| 2509 | |
|
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2510 // ltos |
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2511 { |
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2512 Label notVolatileLong; |
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2513 __ testl(rdx, rdx); |
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2514 __ jcc(Assembler::zero, notVolatileLong); |
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2515 |
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2516 __ pop(ltos); // overwrites rdx, do this after testing volatile. |
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2517 if (!is_static) pop_and_check_object(obj); |
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2518 |
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2519 // Replace with real volatile test |
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2520 __ push(rdx); |
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2521 __ push(rax); // Must update atomically with FIST |
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2522 __ fild_d(Address(rsp,0)); // So load into FPU register |
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2523 __ fistp_d(lo); // and put into memory atomically |
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2524 __ addptr(rsp, 2*wordSize); |
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2525 // volatile_barrier(); |
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2526 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | |
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2527 Assembler::StoreStore)); |
|
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2528 // Don't rewrite volatile version |
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2529 __ jmp(notVolatile); |
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2530 |
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|
2531 __ bind(notVolatileLong); |
|
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|
2532 |
|
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|
2533 __ pop(ltos); // overwrites rdx |
|
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|
2534 if (!is_static) pop_and_check_object(obj); |
|
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|
2535 NOT_LP64(__ movptr(hi, rdx)); |
|
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|
2536 __ movptr(lo, rax); |
|
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|
2537 if (!is_static) { |
|
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|
2538 patch_bytecode(Bytecodes::_fast_lputfield, rcx, rbx, true, byte_no); |
|
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|
2539 } |
|
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|
2540 __ jmp(notVolatile); |
| 0 | 2541 } |
| 2542 | |
| 2543 __ bind(notLong); | |
|
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2544 __ cmpl(flags, ftos); |
| 0 | 2545 __ jcc(Assembler::notEqual, notFloat); |
| 2546 | |
|
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|
2547 // ftos |
|
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|
2548 { |
|
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|
2549 __ pop(ftos); |
|
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|
2550 if (!is_static) pop_and_check_object(obj); |
|
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|
2551 __ fstp_s(lo); |
|
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|
2552 if (!is_static) { |
|
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2553 patch_bytecode(Bytecodes::_fast_fputfield, rcx, rbx, true, byte_no); |
|
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|
2554 } |
|
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|
2555 __ jmp(Done); |
| 0 | 2556 } |
| 2557 | |
| 2558 __ bind(notFloat); | |
|
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2559 #ifdef ASSERT |
|
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|
2560 __ cmpl(flags, dtos); |
| 0 | 2561 __ jcc(Assembler::notEqual, notDouble); |
|
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|
2562 #endif |
|
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2563 |
|
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|
2564 // dtos |
|
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|
2565 { |
|
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|
2566 __ pop(dtos); |
|
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|
2567 if (!is_static) pop_and_check_object(obj); |
|
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|
2568 __ fstp_d(lo); |
|
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|
2569 if (!is_static) { |
|
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|
2570 patch_bytecode(Bytecodes::_fast_dputfield, rcx, rbx, true, byte_no); |
|
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|
2571 } |
|
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|
2572 __ jmp(Done); |
| 0 | 2573 } |
|
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|
2574 |
|
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|
2575 #ifdef ASSERT |
| 0 | 2576 __ bind(notDouble); |
| 2577 __ stop("Bad state"); | |
|
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2578 #endif |
| 0 | 2579 |
| 2580 __ bind(Done); | |
| 2581 | |
| 2582 // Check for volatile store | |
| 2583 __ testl(rdx, rdx); | |
| 2584 __ jcc(Assembler::zero, notVolatile); | |
| 304 | 2585 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | |
| 2586 Assembler::StoreStore)); | |
| 0 | 2587 __ bind(notVolatile); |
| 2588 } | |
| 2589 | |
| 2590 | |
| 2591 void TemplateTable::putfield(int byte_no) { | |
| 2592 putfield_or_static(byte_no, false); | |
| 2593 } | |
| 2594 | |
| 2595 | |
| 2596 void TemplateTable::putstatic(int byte_no) { | |
| 2597 putfield_or_static(byte_no, true); | |
| 2598 } | |
| 2599 | |
| 2600 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2601 if (JvmtiExport::can_post_field_modification()) { | |
| 2602 // Check to see if a field modification watch has been set before we take | |
| 2603 // the time to call into the VM. | |
| 2604 Label L2; | |
|
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2605 __ mov32(rcx, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); |
|
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2606 __ testl(rcx,rcx); |
|
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2607 __ jcc(Assembler::zero, L2); |
|
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2608 __ pop_ptr(rbx); // copy the object pointer from tos |
|
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2609 __ verify_oop(rbx); |
|
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2610 __ push_ptr(rbx); // put the object pointer back on tos |
|
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2611 |
|
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|
2612 // Save tos values before call_VM() clobbers them. Since we have |
|
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2613 // to do it for every data type, we use the saved values as the |
|
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2614 // jvalue object. |
|
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2615 switch (bytecode()) { // load values into the jvalue object |
|
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2616 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
|
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2617 case Bytecodes::_fast_bputfield: // fall through |
|
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2618 case Bytecodes::_fast_sputfield: // fall through |
|
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2619 case Bytecodes::_fast_cputfield: // fall through |
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2620 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
|
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2621 case Bytecodes::_fast_dputfield: __ push_d(); break; |
|
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2622 case Bytecodes::_fast_fputfield: __ push_f(); break; |
|
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2623 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
|
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2624 |
|
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|
2625 default: |
|
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|
2626 ShouldNotReachHere(); |
|
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|
2627 } |
|
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2628 __ mov(rcx, rsp); // points to jvalue on the stack |
|
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2629 // access constant pool cache entry |
|
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2630 __ get_cache_entry_pointer_at_bcp(rax, rdx, 1); |
|
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2631 __ verify_oop(rbx); |
|
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2632 // rbx,: object pointer copied above |
|
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2633 // rax,: cache entry pointer |
|
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2634 // rcx: jvalue object on the stack |
|
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|
2635 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), rbx, rax, rcx); |
|
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|
2636 |
|
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|
2637 switch (bytecode()) { // restore tos values |
|
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|
2638 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
|
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|
2639 case Bytecodes::_fast_bputfield: // fall through |
|
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|
2640 case Bytecodes::_fast_sputfield: // fall through |
|
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2641 case Bytecodes::_fast_cputfield: // fall through |
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2642 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
|
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2643 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
|
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2644 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2645 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
|
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|
2646 } |
|
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|
2647 __ bind(L2); |
| 0 | 2648 } |
| 2649 } | |
| 2650 | |
| 2651 void TemplateTable::fast_storefield(TosState state) { | |
| 2652 transition(state, vtos); | |
| 2653 | |
|
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2654 ByteSize base = ConstantPoolCache::base_offset(); |
| 0 | 2655 |
| 2656 jvmti_post_fast_field_mod(); | |
| 2657 | |
| 2658 // access constant pool cache | |
| 2659 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2660 | |
| 2661 // test for volatile with rdx but rdx is tos register for lputfield. | |
| 304 | 2662 if (bytecode() == Bytecodes::_fast_lputfield) __ push(rdx); |
| 2663 __ movl(rdx, Address(rcx, rbx, Address::times_ptr, in_bytes(base + | |
| 0 | 2664 ConstantPoolCacheEntry::flags_offset()))); |
| 2665 | |
| 2666 // replace index with field offset from cache entry | |
| 304 | 2667 __ movptr(rbx, Address(rcx, rbx, Address::times_ptr, in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2668 |
| 2669 // Doug Lea believes this is not needed with current Sparcs (TSO) and Intel (PSO). | |
| 2670 // volatile_barrier( ); | |
| 2671 | |
| 2672 Label notVolatile, Done; | |
|
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2673 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2674 __ andl(rdx, 0x1); |
| 2675 // Check for volatile store | |
| 2676 __ testl(rdx, rdx); | |
| 2677 __ jcc(Assembler::zero, notVolatile); | |
| 2678 | |
| 304 | 2679 if (bytecode() == Bytecodes::_fast_lputfield) __ pop(rdx); |
| 0 | 2680 |
| 2681 // Get object from stack | |
| 2682 pop_and_check_object(rcx); | |
| 2683 | |
| 2684 // field addresses | |
| 2685 const Address lo(rcx, rbx, Address::times_1, 0*wordSize); | |
| 2686 const Address hi(rcx, rbx, Address::times_1, 1*wordSize); | |
| 2687 | |
| 2688 // access field | |
| 2689 switch (bytecode()) { | |
| 2690 case Bytecodes::_fast_bputfield: __ movb(lo, rax); break; | |
| 2691 case Bytecodes::_fast_sputfield: // fall through | |
| 2692 case Bytecodes::_fast_cputfield: __ movw(lo, rax); break; | |
| 2693 case Bytecodes::_fast_iputfield: __ movl(lo, rax); break; | |
| 304 | 2694 case Bytecodes::_fast_lputfield: |
| 2695 NOT_LP64(__ movptr(hi, rdx)); | |
| 2696 __ movptr(lo, rax); | |
| 2697 break; | |
| 0 | 2698 case Bytecodes::_fast_fputfield: __ fstp_s(lo); break; |
| 2699 case Bytecodes::_fast_dputfield: __ fstp_d(lo); break; | |
|
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|
2700 case Bytecodes::_fast_aputfield: { |
|
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|
2701 do_oop_store(_masm, lo, rax, _bs->kind(), false); |
|
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|
2702 break; |
|
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|
2703 } |
| 0 | 2704 default: |
| 2705 ShouldNotReachHere(); | |
| 2706 } | |
| 2707 | |
| 2708 Label done; | |
| 304 | 2709 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | |
| 2710 Assembler::StoreStore)); | |
|
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2711 // Barriers are so large that short branch doesn't reach! |
|
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|
2712 __ jmp(done); |
| 0 | 2713 |
| 2714 // Same code as above, but don't need rdx to test for volatile. | |
| 2715 __ bind(notVolatile); | |
| 2716 | |
| 304 | 2717 if (bytecode() == Bytecodes::_fast_lputfield) __ pop(rdx); |
| 0 | 2718 |
| 2719 // Get object from stack | |
| 2720 pop_and_check_object(rcx); | |
| 2721 | |
| 2722 // access field | |
| 2723 switch (bytecode()) { | |
| 2724 case Bytecodes::_fast_bputfield: __ movb(lo, rax); break; | |
| 2725 case Bytecodes::_fast_sputfield: // fall through | |
| 2726 case Bytecodes::_fast_cputfield: __ movw(lo, rax); break; | |
| 2727 case Bytecodes::_fast_iputfield: __ movl(lo, rax); break; | |
| 304 | 2728 case Bytecodes::_fast_lputfield: |
| 2729 NOT_LP64(__ movptr(hi, rdx)); | |
| 2730 __ movptr(lo, rax); | |
| 2731 break; | |
| 0 | 2732 case Bytecodes::_fast_fputfield: __ fstp_s(lo); break; |
| 2733 case Bytecodes::_fast_dputfield: __ fstp_d(lo); break; | |
|
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|
2734 case Bytecodes::_fast_aputfield: { |
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|
2735 do_oop_store(_masm, lo, rax, _bs->kind(), false); |
|
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2736 break; |
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2737 } |
| 0 | 2738 default: |
| 2739 ShouldNotReachHere(); | |
| 2740 } | |
| 2741 __ bind(done); | |
| 2742 } | |
| 2743 | |
| 2744 | |
| 2745 void TemplateTable::fast_accessfield(TosState state) { | |
| 2746 transition(atos, state); | |
| 2747 | |
| 2748 // do the JVMTI work here to avoid disturbing the register state below | |
| 2749 if (JvmtiExport::can_post_field_access()) { | |
| 2750 // Check to see if a field access watch has been set before we take | |
| 2751 // the time to call into the VM. | |
| 2752 Label L1; | |
| 2753 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2754 __ testl(rcx,rcx); | |
| 2755 __ jcc(Assembler::zero, L1); | |
| 2756 // access constant pool cache entry | |
| 2757 __ get_cache_entry_pointer_at_bcp(rcx, rdx, 1); | |
| 2758 __ push_ptr(rax); // save object pointer before call_VM() clobbers it | |
| 2759 __ verify_oop(rax); | |
| 2760 // rax,: object pointer copied above | |
| 2761 // rcx: cache entry pointer | |
| 2762 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), rax, rcx); | |
| 2763 __ pop_ptr(rax); // restore object pointer | |
| 2764 __ bind(L1); | |
| 2765 } | |
| 2766 | |
| 2767 // access constant pool cache | |
| 2768 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2769 // replace index with field offset from cache entry | |
| 304 | 2770 __ movptr(rbx, Address(rcx, |
| 2771 rbx, | |
| 2772 Address::times_ptr, | |
|
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2773 in_bytes(ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2774 |
| 2775 | |
| 2776 // rax,: object | |
| 2777 __ verify_oop(rax); | |
| 2778 __ null_check(rax); | |
| 2779 // field addresses | |
| 2780 const Address lo = Address(rax, rbx, Address::times_1, 0*wordSize); | |
| 2781 const Address hi = Address(rax, rbx, Address::times_1, 1*wordSize); | |
| 2782 | |
| 2783 // access field | |
| 2784 switch (bytecode()) { | |
| 304 | 2785 case Bytecodes::_fast_bgetfield: __ movsbl(rax, lo ); break; |
|
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2786 case Bytecodes::_fast_sgetfield: __ load_signed_short(rax, lo ); break; |
|
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2787 case Bytecodes::_fast_cgetfield: __ load_unsigned_short(rax, lo ); break; |
| 0 | 2788 case Bytecodes::_fast_igetfield: __ movl(rax, lo); break; |
| 2789 case Bytecodes::_fast_lgetfield: __ stop("should not be rewritten"); break; | |
| 2790 case Bytecodes::_fast_fgetfield: __ fld_s(lo); break; | |
| 2791 case Bytecodes::_fast_dgetfield: __ fld_d(lo); break; | |
| 304 | 2792 case Bytecodes::_fast_agetfield: __ movptr(rax, lo); __ verify_oop(rax); break; |
| 0 | 2793 default: |
| 2794 ShouldNotReachHere(); | |
| 2795 } | |
| 2796 | |
| 2797 // Doug Lea believes this is not needed with current Sparcs(TSO) and Intel(PSO) | |
| 2798 // volatile_barrier( ); | |
| 2799 } | |
| 2800 | |
| 2801 void TemplateTable::fast_xaccess(TosState state) { | |
| 2802 transition(vtos, state); | |
| 2803 // get receiver | |
| 304 | 2804 __ movptr(rax, aaddress(0)); |
| 0 | 2805 // access constant pool cache |
| 2806 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
| 304 | 2807 __ movptr(rbx, Address(rcx, |
| 2808 rdx, | |
| 2809 Address::times_ptr, | |
|
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2810 in_bytes(ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2811 // make sure exception is reported in correct bcp range (getfield is next instruction) |
| 2812 __ increment(rsi); | |
| 2813 __ null_check(rax); | |
| 2814 const Address lo = Address(rax, rbx, Address::times_1, 0*wordSize); | |
| 2815 if (state == itos) { | |
| 2816 __ movl(rax, lo); | |
| 2817 } else if (state == atos) { | |
| 304 | 2818 __ movptr(rax, lo); |
| 0 | 2819 __ verify_oop(rax); |
| 2820 } else if (state == ftos) { | |
| 2821 __ fld_s(lo); | |
| 2822 } else { | |
| 2823 ShouldNotReachHere(); | |
| 2824 } | |
| 2825 __ decrement(rsi); | |
| 2826 } | |
| 2827 | |
| 2828 | |
| 2829 | |
| 2830 //---------------------------------------------------------------------------------------------------- | |
| 2831 // Calls | |
| 2832 | |
| 2833 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2834 // implemented elsewhere | |
| 2835 ShouldNotReachHere(); | |
| 2836 } | |
| 2837 | |
| 2838 | |
|
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2839 void TemplateTable::prepare_invoke(int byte_no, |
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2840 Register method, // linked method (or i-klass) |
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2841 Register index, // itable index, MethodType, etc. |
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2842 Register recv, // if caller wants to see it |
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2843 Register flags // if caller wants to test it |
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2844 ) { |
| 0 | 2845 // determine flags |
|
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2846 const Bytecodes::Code code = bytecode(); |
| 0 | 2847 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
|
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2848 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
|
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2849 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
| 0 | 2850 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
| 2851 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
|
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2852 const bool load_receiver = (recv != noreg); |
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2853 const bool save_flags = (flags != noreg); |
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2854 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
|
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2855 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
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2856 assert(flags == noreg || flags == rdx, ""); |
|
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|
2857 assert(recv == noreg || recv == rcx, ""); |
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2858 |
| 0 | 2859 // setup registers & access constant pool cache |
|
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2860 if (recv == noreg) recv = rcx; |
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2861 if (flags == noreg) flags = rdx; |
| 0 | 2862 assert_different_registers(method, index, recv, flags); |
| 2863 | |
| 2864 // save 'interpreter return address' | |
| 2865 __ save_bcp(); | |
| 2866 | |
| 1565 | 2867 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
| 0 | 2868 |
|
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2869 // maybe push appendix to arguments (just before return address) |
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|
2870 if (is_invokedynamic || is_invokehandle) { |
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2871 Label L_no_push; |
|
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2872 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
|
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2873 __ jccb(Assembler::zero, L_no_push); |
|
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2874 // Push the appendix as a trailing parameter. |
|
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2875 // This must be done before we get the receiver, |
|
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2876 // since the parameter_size includes it. |
|
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2877 __ push(rbx); |
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2878 __ mov(rbx, index); |
|
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|
2879 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2880 __ load_resolved_reference_at_index(index, rbx); |
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2881 __ pop(rbx); |
|
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2882 __ push(index); // push appendix (MethodType, CallSite, etc.) |
|
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2883 __ bind(L_no_push); |
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|
2884 } |
|
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|
2885 |
| 0 | 2886 // load receiver if needed (note: no return address pushed yet) |
| 2887 if (load_receiver) { | |
| 2888 __ movl(recv, flags); | |
|
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|
2889 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
|
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|
2890 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
|
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|
2891 const int receiver_is_at_end = -1; // back off one slot to get receiver |
|
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|
2892 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
| 1304 | 2893 __ movptr(recv, recv_addr); |
| 2894 __ verify_oop(recv); | |
| 0 | 2895 } |
| 2896 | |
| 2897 if (save_flags) { | |
| 304 | 2898 __ mov(rsi, flags); |
| 0 | 2899 } |
| 2900 | |
| 2901 // compute return type | |
|
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2902 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
|
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|
2903 // Make sure we don't need to mask flags after the above shift |
|
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|
2904 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2905 // load return address |
| 304 | 2906 { |
|
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|
2907 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
|
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|
2908 (address)Interpreter::return_5_addrs_by_index_table() : |
|
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|
2909 (address)Interpreter::return_3_addrs_by_index_table(); |
|
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|
2910 ExternalAddress table(table_addr); |
| 304 | 2911 __ movptr(flags, ArrayAddress(table, Address(noreg, flags, Address::times_ptr))); |
| 0 | 2912 } |
| 2913 | |
| 2914 // push return address | |
| 304 | 2915 __ push(flags); |
| 0 | 2916 |
|
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|
2917 // Restore flags value from the constant pool cache, and restore rsi |
| 0 | 2918 // for later null checks. rsi is the bytecode pointer |
| 2919 if (save_flags) { | |
| 304 | 2920 __ mov(flags, rsi); |
| 0 | 2921 __ restore_bcp(); |
| 2922 } | |
| 2923 } | |
| 2924 | |
| 2925 | |
|
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|
2926 void TemplateTable::invokevirtual_helper(Register index, |
|
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2927 Register recv, |
|
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|
2928 Register flags) { |
| 0 | 2929 // Uses temporary registers rax, rdx |
| 2930 assert_different_registers(index, recv, rax, rdx); | |
|
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|
2931 assert(index == rbx, ""); |
|
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|
2932 assert(recv == rcx, ""); |
| 0 | 2933 |
| 2934 // Test for an invoke of a final method | |
| 2935 Label notFinal; | |
| 2936 __ movl(rax, flags); | |
|
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|
2937 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
| 0 | 2938 __ jcc(Assembler::zero, notFinal); |
| 2939 | |
|
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|
2940 const Register method = index; // method must be rbx |
|
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|
2941 assert(method == rbx, |
|
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2942 "Method* must be rbx for interpreter calling convention"); |
| 0 | 2943 |
| 2944 // do the call - the index is actually the method to call | |
|
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2945 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
| 0 | 2946 |
| 2947 // It's final, need a null check here! | |
| 2948 __ null_check(recv); | |
| 2949 | |
| 2950 // profile this call | |
| 2951 __ profile_final_call(rax); | |
| 2952 | |
| 2953 __ jump_from_interpreted(method, rax); | |
| 2954 | |
| 2955 __ bind(notFinal); | |
| 2956 | |
| 2957 // get receiver klass | |
| 2958 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
|
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|
2959 __ load_klass(rax, recv); |
| 0 | 2960 |
| 2961 // profile this call | |
| 2962 __ profile_virtual_call(rax, rdi, rdx); | |
| 2963 | |
|
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2964 // get target Method* & entry point |
|
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|
2965 __ lookup_virtual_method(rax, index, method); |
| 0 | 2966 __ jump_from_interpreted(method, rdx); |
| 2967 } | |
| 2968 | |
| 2969 | |
| 2970 void TemplateTable::invokevirtual(int byte_no) { | |
| 2971 transition(vtos, vtos); | |
| 1565 | 2972 assert(byte_no == f2_byte, "use this argument"); |
|
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|
2973 prepare_invoke(byte_no, |
|
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|
2974 rbx, // method or vtable index |
|
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|
2975 noreg, // unused itable index |
|
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|
2976 rcx, rdx); // recv, flags |
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|
2977 |
|
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|
2978 // rbx: index |
| 0 | 2979 // rcx: receiver |
| 2980 // rdx: flags | |
| 2981 | |
| 2982 invokevirtual_helper(rbx, rcx, rdx); | |
| 2983 } | |
| 2984 | |
| 2985 | |
| 2986 void TemplateTable::invokespecial(int byte_no) { | |
| 2987 transition(vtos, vtos); | |
| 1565 | 2988 assert(byte_no == f1_byte, "use this argument"); |
|
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|
2989 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
|
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|
2990 rcx); // get receiver also for null check |
|
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|
2991 __ verify_oop(rcx); |
|
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|
2992 __ null_check(rcx); |
| 0 | 2993 // do the call |
| 2994 __ profile_call(rax); | |
| 2995 __ jump_from_interpreted(rbx, rax); | |
| 2996 } | |
| 2997 | |
| 2998 | |
| 2999 void TemplateTable::invokestatic(int byte_no) { | |
| 3000 transition(vtos, vtos); | |
| 1565 | 3001 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3002 prepare_invoke(byte_no, rbx); // get f1 Method* |
| 0 | 3003 // do the call |
| 3004 __ profile_call(rax); | |
| 3005 __ jump_from_interpreted(rbx, rax); | |
| 3006 } | |
| 3007 | |
| 3008 | |
| 3009 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3010 transition(vtos, vtos); | |
| 1565 | 3011 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3012 __ stop("fast_invokevfinal not used on x86"); |
| 3013 } | |
| 3014 | |
| 3015 | |
| 3016 void TemplateTable::invokeinterface(int byte_no) { | |
| 3017 transition(vtos, vtos); | |
| 1565 | 3018 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3019 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
|
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|
3020 rcx, rdx); // recv, flags |
|
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|
3021 |
|
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|
3022 // rax: interface klass (from f1) |
|
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|
3023 // rbx: itable index (from f2) |
| 0 | 3024 // rcx: receiver |
| 3025 // rdx: flags | |
| 3026 | |
| 3027 // Special case of invokeinterface called for virtual method of | |
| 3028 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3029 // This code isn't produced by javac, but could be produced by | |
| 3030 // another compliant java compiler. | |
| 3031 Label notMethod; | |
| 3032 __ movl(rdi, rdx); | |
|
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|
3033 __ andl(rdi, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
| 0 | 3034 __ jcc(Assembler::zero, notMethod); |
| 3035 | |
| 3036 invokevirtual_helper(rbx, rcx, rdx); | |
| 3037 __ bind(notMethod); | |
| 3038 | |
| 3039 // Get receiver klass into rdx - also a null check | |
| 3040 __ restore_locals(); // restore rdi | |
|
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|
3041 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
|
3275
bbe95b4337f1
7036960: TemplateTable::fast_aldc in templateTable_x86_64.cpp uses movptr instead of load_klass
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2416
diff
changeset
|
3042 __ load_klass(rdx, rcx); |
| 0 | 3043 |
| 3044 // profile this call | |
| 3045 __ profile_virtual_call(rdx, rsi, rdi); | |
| 3046 | |
|
623
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|
3047 Label no_such_interface, no_such_method; |
|
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|
3048 |
|
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|
3049 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
|
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|
3050 rdx, rax, rbx, |
|
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|
3051 // outputs: method, scan temp. reg |
|
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|
3052 rbx, rsi, |
|
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|
3053 no_such_interface); |
|
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|
3054 |
|
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|
3055 // rbx: Method* to call |
|
623
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|
3056 // rcx: receiver |
|
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|
3057 // Check for abstract method error |
|
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|
3058 // Note: This should be done more efficiently via a throw_abstract_method_error |
|
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|
3059 // interpreter entry point and a conditional jump to it in case of a null |
|
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|
3060 // method. |
|
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|
3061 __ testptr(rbx, rbx); |
|
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|
3062 __ jcc(Assembler::zero, no_such_method); |
|
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|
3063 |
|
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|
3064 // do the call |
|
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|
3065 // rcx: receiver |
|
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|
3066 // rbx,: Method* |
|
623
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|
3067 __ jump_from_interpreted(rbx, rdx); |
|
9adddb8c0fc8
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diff
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|
3068 __ should_not_reach_here(); |
|
9adddb8c0fc8
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622
diff
changeset
|
3069 |
|
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diff
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|
3070 // exception handling code follows... |
|
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diff
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|
3071 // note: must restore interpreter registers to canonical |
|
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|
3072 // state for exception handling to work correctly! |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3073 |
|
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622
diff
changeset
|
3074 __ bind(no_such_method); |
| 0 | 3075 // throw exception |
|
623
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diff
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|
3076 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
|
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diff
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|
3077 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) |
|
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diff
changeset
|
3078 __ 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
|
3079 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
|
9adddb8c0fc8
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622
diff
changeset
|
3080 // the call_VM checks for exception, so we should never return here. |
|
9adddb8c0fc8
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jrose
parents:
622
diff
changeset
|
3081 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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parents:
622
diff
changeset
|
3082 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3083 __ bind(no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
diff
changeset
|
3084 // throw exception |
| 304 | 3085 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
| 0 | 3086 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) |
| 3087 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) | |
| 3088 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 3089 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3090 // the call_VM checks for exception, so we should never return here. | |
| 3091 __ should_not_reach_here(); | |
| 3092 } | |
| 3093 | |
|
6266
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5995
diff
changeset
|
3094 void TemplateTable::invokehandle(int byte_no) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3095 transition(vtos, vtos); |
|
6725
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changeset
|
3096 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
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diff
changeset
|
3097 const Register rbx_method = rbx; |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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|
3098 const Register rax_mtype = rax; |
|
6266
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diff
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|
3099 const Register rcx_recv = rcx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
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diff
changeset
|
3100 const Register rdx_flags = rdx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3101 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3102 if (!EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3103 // 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
|
3104 __ should_not_reach_here(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3105 return; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3106 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3107 |
|
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
|
3108 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
|
3109 __ verify_method_ptr(rbx_method); |
|
6266
1d7922586cf6
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5995
diff
changeset
|
3110 __ verify_oop(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3111 __ null_check(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3112 |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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6740
diff
changeset
|
3113 // 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
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parents:
6740
diff
changeset
|
3114 // rbx: MH.invokeExact_MT method (from f2) |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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6740
diff
changeset
|
3115 |
|
6266
1d7922586cf6
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5995
diff
changeset
|
3116 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3117 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3118 // FIXME: profile the LambdaForm also |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3119 __ profile_final_call(rax); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3120 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3121 __ jump_from_interpreted(rbx_method, rdx); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3122 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3123 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3124 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3125 void TemplateTable::invokedynamic(int byte_no) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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628
diff
changeset
|
3126 transition(vtos, vtos); |
|
6725
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|
3127 assert(byte_no == f1_byte, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
628
diff
changeset
|
3128 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
628
diff
changeset
|
3129 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3130 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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628
diff
changeset
|
3131 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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628
diff
changeset
|
3132 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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628
diff
changeset
|
3133 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
628
diff
changeset
|
3134 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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628
diff
changeset
|
3135 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3136 __ should_not_reach_here(); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3137 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3138 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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628
diff
changeset
|
3139 |
|
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|
3140 const Register rbx_method = rbx; |
|
1d7922586cf6
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diff
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|
3141 const Register rax_callsite = rax; |
|
1d7922586cf6
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diff
changeset
|
3142 |
|
1d7922586cf6
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5995
diff
changeset
|
3143 prepare_invoke(byte_no, rbx_method, rax_callsite); |
|
1d7922586cf6
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5995
diff
changeset
|
3144 |
|
6822
f6b0eb4e44cf
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6740
diff
changeset
|
3145 // rax: CallSite object (from cpool->resolved_references[f1]) |
|
6266
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diff
changeset
|
3146 // rbx: MH.linkToCallSite method (from f2) |
|
1d7922586cf6
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5995
diff
changeset
|
3147 |
|
1d7922586cf6
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5995
diff
changeset
|
3148 // Note: rax_callsite is already pushed by prepare_invoke |
| 1846 | 3149 |
|
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
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3275
diff
changeset
|
3150 // %%% should make a type profile for any invokedynamic that takes a ref argument |
|
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3151 // profile this call |
|
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|
3152 __ profile_call(rsi); |
|
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3153 |
|
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|
3154 __ verify_oop(rax_callsite); |
|
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3155 |
|
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|
3156 __ jump_from_interpreted(rbx_method, rdx); |
|
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|
3157 } |
|
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|
3158 |
| 0 | 3159 //---------------------------------------------------------------------------------------------------- |
| 3160 // Allocation | |
| 3161 | |
| 3162 void TemplateTable::_new() { | |
| 3163 transition(vtos, atos); | |
| 3164 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3165 Label slow_case; | |
|
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3166 Label slow_case_no_pop; |
| 0 | 3167 Label done; |
| 3168 Label initialize_header; | |
| 3169 Label initialize_object; // including clearing the fields | |
| 3170 Label allocate_shared; | |
| 3171 | |
| 3172 __ get_cpool_and_tags(rcx, rax); | |
|
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3173 |
|
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3174 // Make sure the class we're about to instantiate has been resolved. |
|
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3175 // This is done before loading InstanceKlass to be consistent with the order |
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3176 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
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3177 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
|
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3178 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), JVM_CONSTANT_Class); |
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3179 __ jcc(Assembler::notEqual, slow_case_no_pop); |
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3180 |
|
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3181 // get InstanceKlass |
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3182 __ movptr(rcx, Address(rcx, rdx, Address::times_ptr, sizeof(ConstantPool))); |
| 304 | 3183 __ push(rcx); // save the contexts of klass for initializing the header |
| 0 | 3184 |
| 3185 // make sure klass is initialized & doesn't have finalizer | |
| 3186 // make sure klass is fully initialized | |
|
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3187 __ cmpb(Address(rcx, InstanceKlass::init_state_offset()), InstanceKlass::fully_initialized); |
| 0 | 3188 __ jcc(Assembler::notEqual, slow_case); |
| 3189 | |
|
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3190 // get instance_size in InstanceKlass (scaled to a count of bytes) |
|
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|
3191 __ movl(rdx, Address(rcx, Klass::layout_helper_offset())); |
| 0 | 3192 // test to see if it has a finalizer or is malformed in some way |
| 3193 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
| 3194 __ jcc(Assembler::notZero, slow_case); | |
| 3195 | |
| 3196 // | |
| 3197 // Allocate the instance | |
| 3198 // 1) Try to allocate in the TLAB | |
| 3199 // 2) if fail and the object is large allocate in the shared Eden | |
| 3200 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3201 // (creates a new TLAB, etc.) | |
| 3202 | |
| 3203 const bool allow_shared_alloc = | |
| 3204 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3205 | |
|
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|
3206 const Register thread = rcx; |
|
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|
3207 if (UseTLAB || allow_shared_alloc) { |
|
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|
3208 __ get_thread(thread); |
|
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|
3209 } |
|
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|
3210 |
| 0 | 3211 if (UseTLAB) { |
| 304 | 3212 __ movptr(rax, Address(thread, in_bytes(JavaThread::tlab_top_offset()))); |
| 3213 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3214 __ cmpptr(rbx, Address(thread, in_bytes(JavaThread::tlab_end_offset()))); | |
| 0 | 3215 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
| 304 | 3216 __ movptr(Address(thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
| 0 | 3217 if (ZeroTLAB) { |
| 3218 // the fields have been already cleared | |
| 3219 __ jmp(initialize_header); | |
| 3220 } else { | |
| 3221 // initialize both the header and fields | |
| 3222 __ jmp(initialize_object); | |
| 3223 } | |
| 3224 } | |
| 3225 | |
| 3226 // Allocation in the shared Eden, if allowed. | |
| 3227 // | |
| 3228 // rdx: instance size in bytes | |
| 3229 if (allow_shared_alloc) { | |
| 3230 __ bind(allocate_shared); | |
| 3231 | |
|
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|
3232 ExternalAddress heap_top((address)Universe::heap()->top_addr()); |
|
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|
3233 |
| 0 | 3234 Label retry; |
| 3235 __ bind(retry); | |
| 304 | 3236 __ movptr(rax, heap_top); |
| 3237 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3238 __ cmpptr(rbx, ExternalAddress((address)Universe::heap()->end_addr())); | |
| 0 | 3239 __ jcc(Assembler::above, slow_case); |
| 3240 | |
| 3241 // Compare rax, with the top addr, and if still equal, store the new | |
| 3242 // top addr in rbx, at the address of the top addr pointer. Sets ZF if was | |
| 3243 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
| 3244 // | |
| 3245 // rax,: object begin | |
| 3246 // rbx,: object end | |
| 3247 // rdx: instance size in bytes | |
| 304 | 3248 __ locked_cmpxchgptr(rbx, heap_top); |
| 0 | 3249 |
| 3250 // if someone beat us on the allocation, try again, otherwise continue | |
| 3251 __ jcc(Assembler::notEqual, retry); | |
|
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|
3252 |
|
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|
3253 __ incr_allocated_bytes(thread, rdx, 0); |
| 0 | 3254 } |
| 3255 | |
| 3256 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3257 // The object is initialized before the header. If the object size is | |
| 3258 // zero, go directly to the header initialization. | |
| 3259 __ bind(initialize_object); | |
| 3260 __ decrement(rdx, sizeof(oopDesc)); | |
| 3261 __ jcc(Assembler::zero, initialize_header); | |
| 3262 | |
|
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|
3263 // Initialize topmost object field, divide rdx by 8, check if odd and |
|
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diff
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|
3264 // test if zero. |
| 0 | 3265 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
| 3266 __ shrl(rdx, LogBytesPerLong); // divide by 2*oopSize and set carry flag if odd | |
| 3267 | |
|
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|
3268 // rdx must have been multiple of 8 |
| 0 | 3269 #ifdef ASSERT |
| 3270 // make sure rdx was multiple of 8 | |
| 3271 Label L; | |
| 3272 // Ignore partial flag stall after shrl() since it is debug VM | |
| 3273 __ jccb(Assembler::carryClear, L); | |
| 3274 __ stop("object size is not multiple of 2 - adjust this code"); | |
| 3275 __ bind(L); | |
| 3276 // rdx must be > 0, no extra check needed here | |
| 3277 #endif | |
| 3278 | |
| 3279 // initialize remaining object fields: rdx was a multiple of 8 | |
| 3280 { Label loop; | |
| 3281 __ bind(loop); | |
| 304 | 3282 __ movptr(Address(rax, rdx, Address::times_8, sizeof(oopDesc) - 1*oopSize), rcx); |
| 3283 NOT_LP64(__ movptr(Address(rax, rdx, Address::times_8, sizeof(oopDesc) - 2*oopSize), rcx)); | |
| 0 | 3284 __ decrement(rdx); |
| 3285 __ jcc(Assembler::notZero, loop); | |
| 3286 } | |
| 3287 | |
| 3288 // initialize object header only. | |
| 3289 __ bind(initialize_header); | |
| 3290 if (UseBiasedLocking) { | |
| 304 | 3291 __ pop(rcx); // get saved klass back in the register. |
|
4762
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|
3292 __ movptr(rbx, Address(rcx, Klass::prototype_header_offset())); |
| 304 | 3293 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes ()), rbx); |
| 0 | 3294 } else { |
| 304 | 3295 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes ()), |
| 3296 (int32_t)markOopDesc::prototype()); // header | |
| 3297 __ pop(rcx); // get saved klass back in the register. | |
| 0 | 3298 } |
|
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|
3299 __ store_klass(rax, rcx); // klass |
| 0 | 3300 |
| 3301 { | |
| 3302 SkipIfEqual skip_if(_masm, &DTraceAllocProbes, 0); | |
| 3303 // Trigger dtrace event for fastpath | |
| 3304 __ push(atos); | |
| 3305 __ call_VM_leaf( | |
| 3306 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); | |
| 3307 __ pop(atos); | |
| 3308 } | |
| 3309 | |
| 3310 __ jmp(done); | |
| 3311 } | |
| 3312 | |
| 3313 // slow case | |
| 3314 __ bind(slow_case); | |
| 304 | 3315 __ pop(rcx); // restore stack pointer to what it was when we came in. |
|
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|
3316 __ bind(slow_case_no_pop); |
| 0 | 3317 __ get_constant_pool(rax); |
| 3318 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3319 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), rax, rdx); | |
| 3320 | |
| 3321 // continue | |
| 3322 __ bind(done); | |
| 3323 } | |
| 3324 | |
| 3325 | |
| 3326 void TemplateTable::newarray() { | |
| 3327 transition(itos, atos); | |
| 3328 __ push_i(rax); // make sure everything is on the stack | |
| 3329 __ load_unsigned_byte(rdx, at_bcp(1)); | |
| 3330 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), rdx, rax); | |
| 3331 __ pop_i(rdx); // discard size | |
| 3332 } | |
| 3333 | |
| 3334 | |
| 3335 void TemplateTable::anewarray() { | |
| 3336 transition(itos, atos); | |
| 3337 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3338 __ get_constant_pool(rcx); | |
| 3339 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), rcx, rdx, rax); | |
| 3340 } | |
| 3341 | |
| 3342 | |
| 3343 void TemplateTable::arraylength() { | |
| 3344 transition(atos, itos); | |
| 3345 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
| 3346 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
| 3347 } | |
| 3348 | |
| 3349 | |
| 3350 void TemplateTable::checkcast() { | |
| 3351 transition(atos, atos); | |
| 3352 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3353 __ testptr(rax, rax); // Object is in EAX |
| 0 | 3354 __ jcc(Assembler::zero, is_null); |
| 3355 | |
| 3356 // Get cpool & tags index | |
| 3357 __ get_cpool_and_tags(rcx, rdx); // ECX=cpool, EDX=tags array | |
| 3358 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // EBX=index | |
| 3359 // See if bytecode has already been quicked | |
|
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|
3360 __ cmpb(Address(rdx, rbx, Address::times_1, Array<u1>::base_offset_in_bytes()), JVM_CONSTANT_Class); |
| 0 | 3361 __ jcc(Assembler::equal, quicked); |
| 3362 | |
| 3363 __ push(atos); | |
|
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|
3364 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
|
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3365 // vm_result_2 has metadata result |
|
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|
3366 // borrow rdi from locals |
|
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|
3367 __ get_thread(rdi); |
|
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|
3368 __ get_vm_result_2(rax, rdi); |
|
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|
3369 __ restore_locals(); |
| 0 | 3370 __ pop_ptr(rdx); |
| 3371 __ jmpb(resolved); | |
| 3372 | |
| 3373 // Get superklass in EAX and subklass in EBX | |
| 3374 __ bind(quicked); | |
| 304 | 3375 __ mov(rdx, rax); // Save object in EDX; EAX needed for subtype check |
|
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|
3376 __ movptr(rax, Address(rcx, rbx, Address::times_ptr, sizeof(ConstantPool))); |
| 0 | 3377 |
| 3378 __ bind(resolved); | |
|
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|
3379 __ load_klass(rbx, rdx); |
| 0 | 3380 |
| 3381 // Generate subtype check. Blows ECX. Resets EDI. Object in EDX. | |
| 3382 // Superklass in EAX. Subklass in EBX. | |
| 3383 __ gen_subtype_check( rbx, ok_is_subtype ); | |
| 3384 | |
| 3385 // Come here on failure | |
| 304 | 3386 __ push(rdx); |
| 0 | 3387 // object is at TOS |
| 3388 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
| 3389 | |
| 3390 // Come here on success | |
| 3391 __ bind(ok_is_subtype); | |
| 304 | 3392 __ mov(rax,rdx); // Restore object in EDX |
| 0 | 3393 |
| 3394 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
| 3395 if (ProfileInterpreter) { | |
| 3396 __ jmp(done); | |
| 3397 __ bind(is_null); | |
| 3398 __ profile_null_seen(rcx); | |
| 3399 } else { | |
| 3400 __ bind(is_null); // same as 'done' | |
| 3401 } | |
| 3402 __ bind(done); | |
| 3403 } | |
| 3404 | |
| 3405 | |
| 3406 void TemplateTable::instanceof() { | |
| 3407 transition(atos, itos); | |
| 3408 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3409 __ testptr(rax, rax); |
| 0 | 3410 __ jcc(Assembler::zero, is_null); |
| 3411 | |
| 3412 // Get cpool & tags index | |
| 3413 __ get_cpool_and_tags(rcx, rdx); // ECX=cpool, EDX=tags array | |
| 3414 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // EBX=index | |
| 3415 // See if bytecode has already been quicked | |
|
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3416 __ cmpb(Address(rdx, rbx, Address::times_1, Array<u1>::base_offset_in_bytes()), JVM_CONSTANT_Class); |
| 0 | 3417 __ jcc(Assembler::equal, quicked); |
| 3418 | |
| 3419 __ push(atos); | |
|
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|
3420 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
|
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3421 // vm_result_2 has metadata result |
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|
3422 // borrow rdi from locals |
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|
3423 __ get_thread(rdi); |
|
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|
3424 __ get_vm_result_2(rax, rdi); |
|
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|
3425 __ restore_locals(); |
| 0 | 3426 __ pop_ptr(rdx); |
|
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|
3427 __ load_klass(rdx, rdx); |
| 0 | 3428 __ jmp(resolved); |
| 3429 | |
| 3430 // Get superklass in EAX and subklass in EDX | |
| 3431 __ bind(quicked); | |
|
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|
3432 __ load_klass(rdx, rax); |
|
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|
3433 __ movptr(rax, Address(rcx, rbx, Address::times_ptr, sizeof(ConstantPool))); |
| 0 | 3434 |
| 3435 __ bind(resolved); | |
| 3436 | |
| 3437 // Generate subtype check. Blows ECX. Resets EDI. | |
| 3438 // Superklass in EAX. Subklass in EDX. | |
| 3439 __ gen_subtype_check( rdx, ok_is_subtype ); | |
| 3440 | |
| 3441 // Come here on failure | |
| 3442 __ xorl(rax,rax); | |
| 3443 __ jmpb(done); | |
| 3444 // Come here on success | |
| 3445 __ bind(ok_is_subtype); | |
| 3446 __ movl(rax, 1); | |
| 3447 | |
| 3448 // Collect counts on whether this test sees NULLs a lot or not. | |
| 3449 if (ProfileInterpreter) { | |
| 3450 __ jmp(done); | |
| 3451 __ bind(is_null); | |
| 3452 __ profile_null_seen(rcx); | |
| 3453 } else { | |
| 3454 __ bind(is_null); // same as 'done' | |
| 3455 } | |
| 3456 __ bind(done); | |
| 3457 // rax, = 0: obj == NULL or obj is not an instanceof the specified klass | |
| 3458 // rax, = 1: obj != NULL and obj is an instanceof the specified klass | |
| 3459 } | |
| 3460 | |
| 3461 | |
| 3462 //---------------------------------------------------------------------------------------------------- | |
| 3463 // Breakpoints | |
| 3464 void TemplateTable::_breakpoint() { | |
| 3465 | |
| 3466 // Note: We get here even if we are single stepping.. | |
| 3467 // jbug inists on setting breakpoints at every bytecode | |
| 3468 // even if we are in single step mode. | |
| 3469 | |
| 3470 transition(vtos, vtos); | |
| 3471 | |
| 3472 // get the unpatched byte code | |
| 3473 __ get_method(rcx); | |
| 3474 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), rcx, rsi); | |
| 304 | 3475 __ mov(rbx, rax); |
| 0 | 3476 |
| 3477 // post the breakpoint event | |
| 3478 __ get_method(rcx); | |
| 3479 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), rcx, rsi); | |
| 3480 | |
| 3481 // complete the execution of original bytecode | |
| 3482 __ dispatch_only_normal(vtos); | |
| 3483 } | |
| 3484 | |
| 3485 | |
| 3486 //---------------------------------------------------------------------------------------------------- | |
| 3487 // Exceptions | |
| 3488 | |
| 3489 void TemplateTable::athrow() { | |
| 3490 transition(atos, vtos); | |
| 3491 __ null_check(rax); | |
| 3492 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 3493 } | |
| 3494 | |
| 3495 | |
| 3496 //---------------------------------------------------------------------------------------------------- | |
| 3497 // Synchronization | |
| 3498 // | |
| 3499 // Note: monitorenter & exit are symmetric routines; which is reflected | |
| 3500 // in the assembly code structure as well | |
| 3501 // | |
| 3502 // Stack layout: | |
| 3503 // | |
| 3504 // [expressions ] <--- rsp = expression stack top | |
| 3505 // .. | |
| 3506 // [expressions ] | |
| 3507 // [monitor entry] <--- monitor block top = expression stack bot | |
| 3508 // .. | |
| 3509 // [monitor entry] | |
| 3510 // [frame data ] <--- monitor block bot | |
| 3511 // ... | |
| 3512 // [saved rbp, ] <--- rbp, | |
| 3513 | |
| 3514 | |
| 3515 void TemplateTable::monitorenter() { | |
| 3516 transition(atos, vtos); | |
| 3517 | |
| 3518 // check for NULL object | |
| 3519 __ null_check(rax); | |
| 3520 | |
| 3521 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3522 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3523 const int entry_size = ( frame::interpreter_frame_monitor_size() * wordSize); | |
| 3524 Label allocated; | |
| 3525 | |
| 3526 // initialize entry pointer | |
| 3527 __ xorl(rdx, rdx); // points to free slot or NULL | |
| 3528 | |
| 3529 // find a free slot in the monitor block (result in rdx) | |
| 3530 { Label entry, loop, exit; | |
|
2415
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3531 __ movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
|
09f96c3ff1ad
7032388: guarantee(VM_Version::supports_cmov()) failed: illegal instruction on i586 after 6919934
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diff
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|
3532 |
|
09f96c3ff1ad
7032388: guarantee(VM_Version::supports_cmov()) failed: illegal instruction on i586 after 6919934
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|
3533 __ lea(rbx, monitor_block_bot); // points to word before bottom of monitor block |
| 0 | 3534 __ jmpb(entry); |
| 3535 | |
| 3536 __ bind(loop); | |
| 304 | 3537 __ cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
|
2415
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|
3538 __ cmovptr(Assembler::equal, rdx, rcx); // if not used then remember entry in rdx |
| 304 | 3539 __ cmpptr(rax, Address(rcx, BasicObjectLock::obj_offset_in_bytes())); // check if current entry is for same object |
| 3540 __ jccb(Assembler::equal, exit); // if same object then stop searching | |
| 3541 __ addptr(rcx, entry_size); // otherwise advance to next entry | |
| 0 | 3542 __ bind(entry); |
| 304 | 3543 __ cmpptr(rcx, rbx); // check if bottom reached |
| 0 | 3544 __ jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
| 3545 __ bind(exit); | |
| 3546 } | |
| 3547 | |
| 304 | 3548 __ testptr(rdx, rdx); // check if a slot has been found |
| 3549 __ jccb(Assembler::notZero, allocated); // if found, continue with that one | |
| 0 | 3550 |
| 3551 // allocate one if there's no free slot | |
| 3552 { Label entry, loop; | |
| 3553 // 1. compute new pointers // rsp: old expression stack top | |
| 304 | 3554 __ movptr(rdx, monitor_block_bot); // rdx: old expression stack bottom |
| 3555 __ subptr(rsp, entry_size); // move expression stack top | |
| 3556 __ subptr(rdx, entry_size); // move expression stack bottom | |
| 3557 __ mov(rcx, rsp); // set start value for copy loop | |
| 3558 __ movptr(monitor_block_bot, rdx); // set new monitor block top | |
| 0 | 3559 __ jmp(entry); |
| 3560 // 2. move expression stack contents | |
| 3561 __ bind(loop); | |
| 304 | 3562 __ movptr(rbx, Address(rcx, entry_size)); // load expression stack word from old location |
| 3563 __ movptr(Address(rcx, 0), rbx); // and store it at new location | |
| 3564 __ addptr(rcx, wordSize); // advance to next word | |
| 0 | 3565 __ bind(entry); |
| 304 | 3566 __ cmpptr(rcx, rdx); // check if bottom reached |
| 0 | 3567 __ jcc(Assembler::notEqual, loop); // if not at bottom then copy next word |
| 3568 } | |
| 3569 | |
| 3570 // call run-time routine | |
| 3571 // rdx: points to monitor entry | |
| 3572 __ bind(allocated); | |
| 3573 | |
| 3574 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3575 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3576 __ increment(rsi); | |
| 3577 | |
| 304 | 3578 __ movptr(Address(rdx, BasicObjectLock::obj_offset_in_bytes()), rax); // store object |
| 0 | 3579 __ lock_object(rdx); |
| 3580 | |
| 3581 // check to make sure this monitor doesn't cause stack overflow after locking | |
| 3582 __ save_bcp(); // in case of exception | |
| 3583 __ generate_stack_overflow_check(0); | |
| 3584 | |
| 3585 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3586 __ dispatch_next(vtos); | |
| 3587 } | |
| 3588 | |
| 3589 | |
| 3590 void TemplateTable::monitorexit() { | |
| 3591 transition(atos, vtos); | |
| 3592 | |
| 3593 // check for NULL object | |
| 3594 __ null_check(rax); | |
| 3595 | |
| 3596 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3597 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3598 const int entry_size = ( frame::interpreter_frame_monitor_size() * wordSize); | |
| 3599 Label found; | |
| 3600 | |
| 3601 // find matching slot | |
| 3602 { Label entry, loop; | |
| 304 | 3603 __ movptr(rdx, monitor_block_top); // points to current entry, starting with top-most entry |
| 3604 __ lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | |
| 0 | 3605 __ jmpb(entry); |
| 3606 | |
| 3607 __ bind(loop); | |
| 304 | 3608 __ cmpptr(rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); // check if current entry is for same object |
| 0 | 3609 __ jcc(Assembler::equal, found); // if same object then stop searching |
| 304 | 3610 __ addptr(rdx, entry_size); // otherwise advance to next entry |
| 0 | 3611 __ bind(entry); |
| 304 | 3612 __ cmpptr(rdx, rbx); // check if bottom reached |
| 0 | 3613 __ jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
| 3614 } | |
| 3615 | |
| 3616 // error handling. Unlocking was not block-structured | |
| 3617 Label end; | |
| 3618 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3619 __ should_not_reach_here(); | |
| 3620 | |
| 3621 // call run-time routine | |
| 3622 // rcx: points to monitor entry | |
| 3623 __ bind(found); | |
| 3624 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
| 3625 __ unlock_object(rdx); | |
| 3626 __ pop_ptr(rax); // discard object | |
| 3627 __ bind(end); | |
| 3628 } | |
| 3629 | |
| 3630 | |
| 3631 //---------------------------------------------------------------------------------------------------- | |
| 3632 // Wide instructions | |
| 3633 | |
| 3634 void TemplateTable::wide() { | |
| 3635 transition(vtos, vtos); | |
| 3636 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 304 | 3637 ExternalAddress wtable((address)Interpreter::_wentry_point); |
| 3638 __ jump(ArrayAddress(wtable, Address(noreg, rbx, Address::times_ptr))); | |
| 0 | 3639 // Note: the rsi increment step is part of the individual wide bytecode implementations |
| 3640 } | |
| 3641 | |
| 3642 | |
| 3643 //---------------------------------------------------------------------------------------------------- | |
| 3644 // Multi arrays | |
| 3645 | |
| 3646 void TemplateTable::multianewarray() { | |
| 3647 transition(vtos, atos); | |
| 3648 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
| 3649 // last dim is on top of stack; we want address of first one: | |
| 3650 // first_addr = last_addr + (ndims - 1) * stackElementSize - 1*wordsize | |
| 3651 // the latter wordSize to point to the beginning of the array. | |
| 304 | 3652 __ lea( rax, Address(rsp, rax, Interpreter::stackElementScale(), -wordSize)); |
| 0 | 3653 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), rax); // pass in rax, |
| 3654 __ load_unsigned_byte(rbx, at_bcp(3)); | |
| 304 | 3655 __ lea(rsp, Address(rsp, rbx, Interpreter::stackElementScale())); // get rid of counts |
| 0 | 3656 } |
| 3657 | |
| 3658 #endif /* !CC_INTERP */ |