Mercurial > hg > graal-jvmci-8
annotate src/cpu/x86/vm/templateTable_x86_32.cpp @ 24166:dad95e57f1de
Update MDO with Reason_not_compiled_exception_handler
| author | Tom Rodriguez <tom.rodriguez@oracle.com> |
|---|---|
| date | Mon, 14 Aug 2017 08:55:23 -0700 |
| parents | 0e0a4ebf09d7 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 23614 | 2 * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/interpreter.hpp" |
| 28 #include "interpreter/interpreterRuntime.hpp" | |
| 29 #include "interpreter/templateTable.hpp" | |
| 30 #include "memory/universe.inline.hpp" | |
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31 #include "oops/methodData.hpp" |
| 1972 | 32 #include "oops/objArrayKlass.hpp" |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "prims/methodHandles.hpp" | |
| 35 #include "runtime/sharedRuntime.hpp" | |
| 36 #include "runtime/stubRoutines.hpp" | |
| 37 #include "runtime/synchronizer.hpp" | |
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38 #include "utilities/macros.hpp" |
| 0 | 39 |
| 40 #ifndef CC_INTERP | |
| 41 #define __ _masm-> | |
| 42 | |
| 43 //---------------------------------------------------------------------------------------------------- | |
| 44 // Platform-dependent initialization | |
| 45 | |
| 46 void TemplateTable::pd_initialize() { | |
| 47 // No i486 specific initialization | |
| 48 } | |
| 49 | |
| 50 //---------------------------------------------------------------------------------------------------- | |
| 51 // Address computation | |
| 52 | |
| 53 // local variables | |
| 54 static inline Address iaddress(int n) { | |
| 55 return Address(rdi, Interpreter::local_offset_in_bytes(n)); | |
| 56 } | |
| 57 | |
| 58 static inline Address laddress(int n) { return iaddress(n + 1); } | |
| 59 static inline Address haddress(int n) { return iaddress(n + 0); } | |
| 60 static inline Address faddress(int n) { return iaddress(n); } | |
| 61 static inline Address daddress(int n) { return laddress(n); } | |
| 62 static inline Address aaddress(int n) { return iaddress(n); } | |
| 63 | |
| 64 static inline Address iaddress(Register r) { | |
| 1506 | 65 return Address(rdi, r, Interpreter::stackElementScale()); |
| 0 | 66 } |
| 67 static inline Address laddress(Register r) { | |
| 68 return Address(rdi, r, Interpreter::stackElementScale(), Interpreter::local_offset_in_bytes(1)); | |
| 69 } | |
| 70 static inline Address haddress(Register r) { | |
| 71 return Address(rdi, r, Interpreter::stackElementScale(), Interpreter::local_offset_in_bytes(0)); | |
| 72 } | |
| 73 | |
| 1506 | 74 static inline Address faddress(Register r) { return iaddress(r); } |
| 75 static inline Address daddress(Register r) { return laddress(r); } | |
| 76 static inline Address aaddress(Register r) { return iaddress(r); } | |
| 0 | 77 |
| 78 // expression stack | |
| 79 // (Note: Must not use symmetric equivalents at_rsp_m1/2 since they store | |
| 80 // data beyond the rsp which is potentially unsafe in an MT environment; | |
| 81 // an interrupt may overwrite that data.) | |
| 82 static inline Address at_rsp () { | |
| 83 return Address(rsp, 0); | |
| 84 } | |
| 85 | |
| 86 // At top of Java expression stack which may be different than rsp(). It | |
| 87 // isn't for category 1 objects. | |
| 88 static inline Address at_tos () { | |
| 89 Address tos = Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
| 90 return tos; | |
| 91 } | |
| 92 | |
| 93 static inline Address at_tos_p1() { | |
| 94 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
| 95 } | |
| 96 | |
| 97 static inline Address at_tos_p2() { | |
| 98 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
| 99 } | |
| 100 | |
| 101 // Condition conversion | |
| 102 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
| 103 switch (cc) { | |
| 104 case TemplateTable::equal : return Assembler::notEqual; | |
| 105 case TemplateTable::not_equal : return Assembler::equal; | |
| 106 case TemplateTable::less : return Assembler::greaterEqual; | |
| 107 case TemplateTable::less_equal : return Assembler::greater; | |
| 108 case TemplateTable::greater : return Assembler::lessEqual; | |
| 109 case TemplateTable::greater_equal: return Assembler::less; | |
| 110 } | |
| 111 ShouldNotReachHere(); | |
| 112 return Assembler::zero; | |
| 113 } | |
| 114 | |
| 115 | |
| 116 //---------------------------------------------------------------------------------------------------- | |
| 117 // Miscelaneous helper routines | |
| 118 | |
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119 // Store an oop (or NULL) at the address described by obj. |
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120 // If val == noreg this means store a NULL |
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121 |
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122 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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123 Address obj, |
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124 Register val, |
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125 BarrierSet::Name barrier, |
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126 bool precise) { |
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127 assert(val == noreg || val == rax, "parameter is just for looks"); |
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128 switch (barrier) { |
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129 #if INCLUDE_ALL_GCS |
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130 case BarrierSet::G1SATBCT: |
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131 case BarrierSet::G1SATBCTLogging: |
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132 { |
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133 // flatten object address if needed |
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134 // We do it regardless of precise because we need the registers |
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135 if (obj.index() == noreg && obj.disp() == 0) { |
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136 if (obj.base() != rdx) { |
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137 __ movl(rdx, obj.base()); |
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138 } |
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139 } else { |
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140 __ leal(rdx, obj); |
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141 } |
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142 __ get_thread(rcx); |
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143 __ save_bcp(); |
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144 __ g1_write_barrier_pre(rdx /* obj */, |
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145 rbx /* pre_val */, |
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146 rcx /* thread */, |
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147 rsi /* tmp */, |
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148 val != noreg /* tosca_live */, |
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149 false /* expand_call */); |
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150 |
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151 // Do the actual store |
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152 // noreg means NULL |
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153 if (val == noreg) { |
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154 __ movptr(Address(rdx, 0), NULL_WORD); |
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155 // No post barrier for NULL |
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156 } else { |
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157 __ movl(Address(rdx, 0), val); |
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158 __ g1_write_barrier_post(rdx /* store_adr */, |
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159 val /* new_val */, |
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160 rcx /* thread */, |
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161 rbx /* tmp */, |
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162 rsi /* tmp2 */); |
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163 } |
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164 __ restore_bcp(); |
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165 |
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166 } |
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167 break; |
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168 #endif // INCLUDE_ALL_GCS |
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169 case BarrierSet::CardTableModRef: |
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170 case BarrierSet::CardTableExtension: |
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171 { |
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172 if (val == noreg) { |
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173 __ movptr(obj, NULL_WORD); |
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174 } else { |
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175 __ movl(obj, val); |
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176 // flatten object address if needed |
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177 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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178 __ store_check(obj.base()); |
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179 } else { |
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180 __ leal(rdx, obj); |
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181 __ store_check(rdx); |
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182 } |
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183 } |
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184 } |
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185 break; |
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186 case BarrierSet::ModRef: |
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187 case BarrierSet::Other: |
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188 if (val == noreg) { |
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189 __ movptr(obj, NULL_WORD); |
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190 } else { |
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191 __ movl(obj, val); |
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192 } |
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193 break; |
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194 default : |
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195 ShouldNotReachHere(); |
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196 |
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197 } |
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198 } |
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199 |
| 0 | 200 Address TemplateTable::at_bcp(int offset) { |
| 201 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 202 return Address(rsi, offset); | |
| 203 } | |
| 204 | |
| 205 | |
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206 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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207 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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208 int byte_no) { |
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209 if (!RewriteBytecodes) return; |
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210 Label L_patch_done; |
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211 |
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212 switch (bc) { |
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213 case Bytecodes::_fast_aputfield: |
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214 case Bytecodes::_fast_bputfield: |
| 23614 | 215 case Bytecodes::_fast_zputfield: |
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216 case Bytecodes::_fast_cputfield: |
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217 case Bytecodes::_fast_dputfield: |
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218 case Bytecodes::_fast_fputfield: |
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219 case Bytecodes::_fast_iputfield: |
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220 case Bytecodes::_fast_lputfield: |
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221 case Bytecodes::_fast_sputfield: |
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222 { |
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223 // We skip bytecode quickening for putfield instructions when |
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224 // the put_code written to the constant pool cache is zero. |
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225 // This is required so that every execution of this instruction |
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226 // calls out to InterpreterRuntime::resolve_get_put to do |
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227 // additional, required work. |
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228 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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229 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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230 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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231 __ movl(bc_reg, bc); |
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232 __ cmpl(temp_reg, (int) 0); |
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233 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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234 } |
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235 break; |
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236 default: |
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237 assert(byte_no == -1, "sanity"); |
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238 // the pair bytecodes have already done the load. |
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239 if (load_bc_into_bc_reg) { |
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240 __ movl(bc_reg, bc); |
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241 } |
| 304 | 242 } |
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243 |
| 0 | 244 if (JvmtiExport::can_post_breakpoint()) { |
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245 Label L_fast_patch; |
| 0 | 246 // if a breakpoint is present we can't rewrite the stream directly |
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247 __ movzbl(temp_reg, at_bcp(0)); |
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248 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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249 __ jcc(Assembler::notEqual, L_fast_patch); |
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250 __ get_method(temp_reg); |
| 0 | 251 // Let breakpoint table handling rewrite to quicker bytecode |
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252 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, rsi, bc_reg); |
| 0 | 253 #ifndef ASSERT |
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254 __ jmpb(L_patch_done); |
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255 #else |
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256 __ jmp(L_patch_done); |
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257 #endif |
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258 __ bind(L_fast_patch); |
| 0 | 259 } |
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260 |
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261 #ifdef ASSERT |
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262 Label L_okay; |
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263 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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264 __ cmpl(temp_reg, (int)Bytecodes::java_code(bc)); |
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265 __ jccb(Assembler::equal, L_okay); |
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266 __ cmpl(temp_reg, bc_reg); |
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267 __ jcc(Assembler::equal, L_okay); |
| 0 | 268 __ stop("patching the wrong bytecode"); |
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269 __ bind(L_okay); |
| 0 | 270 #endif |
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271 |
| 0 | 272 // patch bytecode |
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273 __ movb(at_bcp(0), bc_reg); |
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274 __ bind(L_patch_done); |
| 0 | 275 } |
| 276 | |
| 277 //---------------------------------------------------------------------------------------------------- | |
| 278 // Individual instructions | |
| 279 | |
| 280 void TemplateTable::nop() { | |
| 281 transition(vtos, vtos); | |
| 282 // nothing to do | |
| 283 } | |
| 284 | |
| 285 void TemplateTable::shouldnotreachhere() { | |
| 286 transition(vtos, vtos); | |
| 287 __ stop("shouldnotreachhere bytecode"); | |
| 288 } | |
| 289 | |
| 290 | |
| 291 | |
| 292 void TemplateTable::aconst_null() { | |
| 293 transition(vtos, atos); | |
| 304 | 294 __ xorptr(rax, rax); |
| 0 | 295 } |
| 296 | |
| 297 | |
| 298 void TemplateTable::iconst(int value) { | |
| 299 transition(vtos, itos); | |
| 300 if (value == 0) { | |
| 304 | 301 __ xorptr(rax, rax); |
| 0 | 302 } else { |
| 304 | 303 __ movptr(rax, value); |
| 0 | 304 } |
| 305 } | |
| 306 | |
| 307 | |
| 308 void TemplateTable::lconst(int value) { | |
| 309 transition(vtos, ltos); | |
| 310 if (value == 0) { | |
| 304 | 311 __ xorptr(rax, rax); |
| 0 | 312 } else { |
| 304 | 313 __ movptr(rax, value); |
| 0 | 314 } |
| 315 assert(value >= 0, "check this code"); | |
| 304 | 316 __ xorptr(rdx, rdx); |
| 0 | 317 } |
| 318 | |
| 319 | |
| 320 void TemplateTable::fconst(int value) { | |
| 321 transition(vtos, ftos); | |
| 322 if (value == 0) { __ fldz(); | |
| 323 } else if (value == 1) { __ fld1(); | |
| 324 } else if (value == 2) { __ fld1(); __ fld1(); __ faddp(); // should do a better solution here | |
| 325 } else { ShouldNotReachHere(); | |
| 326 } | |
| 327 } | |
| 328 | |
| 329 | |
| 330 void TemplateTable::dconst(int value) { | |
| 331 transition(vtos, dtos); | |
| 332 if (value == 0) { __ fldz(); | |
| 333 } else if (value == 1) { __ fld1(); | |
| 334 } else { ShouldNotReachHere(); | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 | |
| 339 void TemplateTable::bipush() { | |
| 340 transition(vtos, itos); | |
| 341 __ load_signed_byte(rax, at_bcp(1)); | |
| 342 } | |
| 343 | |
| 344 | |
| 345 void TemplateTable::sipush() { | |
| 346 transition(vtos, itos); | |
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347 __ load_unsigned_short(rax, at_bcp(1)); |
| 304 | 348 __ bswapl(rax); |
| 0 | 349 __ sarl(rax, 16); |
| 350 } | |
| 351 | |
| 352 void TemplateTable::ldc(bool wide) { | |
| 353 transition(vtos, vtos); | |
| 354 Label call_ldc, notFloat, notClass, Done; | |
| 355 | |
| 356 if (wide) { | |
| 357 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 358 } else { | |
| 359 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 360 } | |
| 361 __ get_cpool_and_tags(rcx, rax); | |
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362 const int base_offset = ConstantPool::header_size() * wordSize; |
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363 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 364 |
| 365 // get type | |
| 304 | 366 __ xorptr(rdx, rdx); |
| 0 | 367 __ movb(rdx, Address(rax, rbx, Address::times_1, tags_offset)); |
| 368 | |
| 369 // unresolved class - get the resolved class | |
| 370 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
| 371 __ jccb(Assembler::equal, call_ldc); | |
| 372 | |
| 373 // unresolved class in error (resolution failed) - call into runtime | |
| 374 // so that the same error from first resolution attempt is thrown. | |
| 375 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
| 376 __ jccb(Assembler::equal, call_ldc); | |
| 377 | |
| 378 // resolved class - need to call vm to get java mirror of the class | |
| 379 __ cmpl(rdx, JVM_CONSTANT_Class); | |
| 380 __ jcc(Assembler::notEqual, notClass); | |
| 381 | |
| 382 __ bind(call_ldc); | |
| 383 __ movl(rcx, wide); | |
| 384 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), rcx); | |
| 385 __ push(atos); | |
| 386 __ jmp(Done); | |
| 387 | |
| 388 __ bind(notClass); | |
| 389 __ cmpl(rdx, JVM_CONSTANT_Float); | |
| 390 __ jccb(Assembler::notEqual, notFloat); | |
| 391 // ftos | |
| 304 | 392 __ fld_s( Address(rcx, rbx, Address::times_ptr, base_offset)); |
| 0 | 393 __ push(ftos); |
| 394 __ jmp(Done); | |
| 395 | |
| 396 __ bind(notFloat); | |
| 397 #ifdef ASSERT | |
| 398 { Label L; | |
| 399 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
| 400 __ jcc(Assembler::equal, L); | |
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401 // String and Object are rewritten to fast_aldc |
| 0 | 402 __ stop("unexpected tag type in ldc"); |
| 403 __ bind(L); | |
| 404 } | |
| 405 #endif | |
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406 // itos JVM_CONSTANT_Integer only |
| 304 | 407 __ movl(rax, Address(rcx, rbx, Address::times_ptr, base_offset)); |
| 0 | 408 __ push(itos); |
| 409 __ bind(Done); | |
| 410 } | |
| 411 | |
| 1602 | 412 // Fast path for caching oop constants. |
| 413 void TemplateTable::fast_aldc(bool wide) { | |
| 414 transition(vtos, atos); | |
| 415 | |
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416 Register result = rax; |
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417 Register tmp = rdx; |
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418 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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419 |
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420 Label resolved; |
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421 |
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422 // We are resolved if the resolved reference cache entry contains a |
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423 // non-null object (String, MethodType, etc.) |
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424 assert_different_registers(result, tmp); |
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425 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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426 __ load_resolved_reference_at_index(result, tmp); |
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427 __ testl(result, result); |
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428 __ jcc(Assembler::notZero, resolved); |
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429 |
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430 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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431 |
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432 // first time invocation - must resolve first |
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433 __ movl(tmp, (int)bytecode()); |
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434 __ call_VM(result, entry, tmp); |
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435 |
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436 __ bind(resolved); |
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437 |
| 1602 | 438 if (VerifyOops) { |
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439 __ verify_oop(result); |
| 1602 | 440 } |
| 441 } | |
| 442 | |
| 0 | 443 void TemplateTable::ldc2_w() { |
| 444 transition(vtos, vtos); | |
| 445 Label Long, Done; | |
| 446 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 447 | |
| 448 __ get_cpool_and_tags(rcx, rax); | |
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449 const int base_offset = ConstantPool::header_size() * wordSize; |
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450 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 451 |
| 452 // get type | |
| 453 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), JVM_CONSTANT_Double); | |
| 454 __ jccb(Assembler::notEqual, Long); | |
| 455 // dtos | |
| 304 | 456 __ fld_d( Address(rcx, rbx, Address::times_ptr, base_offset)); |
| 0 | 457 __ push(dtos); |
| 458 __ jmpb(Done); | |
| 459 | |
| 460 __ bind(Long); | |
| 461 // ltos | |
| 304 | 462 __ movptr(rax, Address(rcx, rbx, Address::times_ptr, base_offset + 0 * wordSize)); |
| 463 NOT_LP64(__ movptr(rdx, Address(rcx, rbx, Address::times_ptr, base_offset + 1 * wordSize))); | |
| 0 | 464 |
| 465 __ push(ltos); | |
| 466 | |
| 467 __ bind(Done); | |
| 468 } | |
| 469 | |
| 470 | |
| 471 void TemplateTable::locals_index(Register reg, int offset) { | |
| 472 __ load_unsigned_byte(reg, at_bcp(offset)); | |
| 304 | 473 __ negptr(reg); |
| 0 | 474 } |
| 475 | |
| 476 | |
| 477 void TemplateTable::iload() { | |
| 478 transition(vtos, itos); | |
| 479 if (RewriteFrequentPairs) { | |
| 480 Label rewrite, done; | |
| 481 | |
| 482 // get next byte | |
| 483 __ load_unsigned_byte(rbx, at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
| 484 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 485 // last two iloads in a pair. Comparing against fast_iload means that | |
| 486 // the next bytecode is neither an iload or a caload, and therefore | |
| 487 // an iload pair. | |
| 488 __ cmpl(rbx, Bytecodes::_iload); | |
| 489 __ jcc(Assembler::equal, done); | |
| 490 | |
| 491 __ cmpl(rbx, Bytecodes::_fast_iload); | |
| 492 __ movl(rcx, Bytecodes::_fast_iload2); | |
| 493 __ jccb(Assembler::equal, rewrite); | |
| 494 | |
| 495 // if _caload, rewrite to fast_icaload | |
| 496 __ cmpl(rbx, Bytecodes::_caload); | |
| 497 __ movl(rcx, Bytecodes::_fast_icaload); | |
| 498 __ jccb(Assembler::equal, rewrite); | |
| 499 | |
| 500 // rewrite so iload doesn't check again. | |
| 501 __ movl(rcx, Bytecodes::_fast_iload); | |
| 502 | |
| 503 // rewrite | |
| 504 // rcx: fast bytecode | |
| 505 __ bind(rewrite); | |
| 506 patch_bytecode(Bytecodes::_iload, rcx, rbx, false); | |
| 507 __ bind(done); | |
| 508 } | |
| 509 | |
| 510 // Get the local value into tos | |
| 511 locals_index(rbx); | |
| 512 __ movl(rax, iaddress(rbx)); | |
| 513 } | |
| 514 | |
| 515 | |
| 516 void TemplateTable::fast_iload2() { | |
| 517 transition(vtos, itos); | |
| 518 locals_index(rbx); | |
| 519 __ movl(rax, iaddress(rbx)); | |
| 520 __ push(itos); | |
| 521 locals_index(rbx, 3); | |
| 522 __ movl(rax, iaddress(rbx)); | |
| 523 } | |
| 524 | |
| 525 void TemplateTable::fast_iload() { | |
| 526 transition(vtos, itos); | |
| 527 locals_index(rbx); | |
| 528 __ movl(rax, iaddress(rbx)); | |
| 529 } | |
| 530 | |
| 531 | |
| 532 void TemplateTable::lload() { | |
| 533 transition(vtos, ltos); | |
| 534 locals_index(rbx); | |
| 304 | 535 __ movptr(rax, laddress(rbx)); |
| 536 NOT_LP64(__ movl(rdx, haddress(rbx))); | |
| 0 | 537 } |
| 538 | |
| 539 | |
| 540 void TemplateTable::fload() { | |
| 541 transition(vtos, ftos); | |
| 542 locals_index(rbx); | |
| 543 __ fld_s(faddress(rbx)); | |
| 544 } | |
| 545 | |
| 546 | |
| 547 void TemplateTable::dload() { | |
| 548 transition(vtos, dtos); | |
| 549 locals_index(rbx); | |
| 1506 | 550 __ fld_d(daddress(rbx)); |
| 0 | 551 } |
| 552 | |
| 553 | |
| 554 void TemplateTable::aload() { | |
| 555 transition(vtos, atos); | |
| 556 locals_index(rbx); | |
| 304 | 557 __ movptr(rax, aaddress(rbx)); |
| 0 | 558 } |
| 559 | |
| 560 | |
| 561 void TemplateTable::locals_index_wide(Register reg) { | |
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562 __ load_unsigned_short(reg, at_bcp(2)); |
| 304 | 563 __ bswapl(reg); |
| 0 | 564 __ shrl(reg, 16); |
| 304 | 565 __ negptr(reg); |
| 0 | 566 } |
| 567 | |
| 568 | |
| 569 void TemplateTable::wide_iload() { | |
| 570 transition(vtos, itos); | |
| 571 locals_index_wide(rbx); | |
| 572 __ movl(rax, iaddress(rbx)); | |
| 573 } | |
| 574 | |
| 575 | |
| 576 void TemplateTable::wide_lload() { | |
| 577 transition(vtos, ltos); | |
| 578 locals_index_wide(rbx); | |
| 304 | 579 __ movptr(rax, laddress(rbx)); |
| 580 NOT_LP64(__ movl(rdx, haddress(rbx))); | |
| 0 | 581 } |
| 582 | |
| 583 | |
| 584 void TemplateTable::wide_fload() { | |
| 585 transition(vtos, ftos); | |
| 586 locals_index_wide(rbx); | |
| 587 __ fld_s(faddress(rbx)); | |
| 588 } | |
| 589 | |
| 590 | |
| 591 void TemplateTable::wide_dload() { | |
| 592 transition(vtos, dtos); | |
| 593 locals_index_wide(rbx); | |
| 1506 | 594 __ fld_d(daddress(rbx)); |
| 0 | 595 } |
| 596 | |
| 597 | |
| 598 void TemplateTable::wide_aload() { | |
| 599 transition(vtos, atos); | |
| 600 locals_index_wide(rbx); | |
| 304 | 601 __ movptr(rax, aaddress(rbx)); |
| 0 | 602 } |
| 603 | |
| 604 void TemplateTable::index_check(Register array, Register index) { | |
| 605 // Pop ptr into array | |
| 606 __ pop_ptr(array); | |
| 607 index_check_without_pop(array, index); | |
| 608 } | |
| 609 | |
| 610 void TemplateTable::index_check_without_pop(Register array, Register index) { | |
| 611 // destroys rbx, | |
| 612 // check array | |
| 613 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
| 304 | 614 LP64_ONLY(__ movslq(index, index)); |
| 0 | 615 // check index |
| 616 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
| 617 if (index != rbx) { | |
| 618 // ??? convention: move aberrant index into rbx, for exception message | |
| 619 assert(rbx != array, "different registers"); | |
| 304 | 620 __ mov(rbx, index); |
| 0 | 621 } |
| 622 __ jump_cc(Assembler::aboveEqual, | |
| 623 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
| 624 } | |
| 625 | |
| 626 | |
| 627 void TemplateTable::iaload() { | |
| 628 transition(itos, itos); | |
| 629 // rdx: array | |
| 630 index_check(rdx, rax); // kills rbx, | |
| 631 // rax,: index | |
| 632 __ movl(rax, Address(rdx, rax, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 633 } | |
| 634 | |
| 635 | |
| 636 void TemplateTable::laload() { | |
| 637 transition(itos, ltos); | |
| 638 // rax,: index | |
| 639 // rdx: array | |
| 640 index_check(rdx, rax); | |
| 304 | 641 __ mov(rbx, rax); |
| 0 | 642 // rbx,: index |
| 304 | 643 __ movptr(rax, Address(rdx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 0 * wordSize)); |
| 644 NOT_LP64(__ movl(rdx, Address(rdx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 1 * wordSize))); | |
| 0 | 645 } |
| 646 | |
| 647 | |
| 648 void TemplateTable::faload() { | |
| 649 transition(itos, ftos); | |
| 650 // rdx: array | |
| 651 index_check(rdx, rax); // kills rbx, | |
| 652 // rax,: index | |
| 653 __ fld_s(Address(rdx, rax, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 654 } | |
| 655 | |
| 656 | |
| 657 void TemplateTable::daload() { | |
| 658 transition(itos, dtos); | |
| 659 // rdx: array | |
| 660 index_check(rdx, rax); // kills rbx, | |
| 661 // rax,: index | |
| 662 __ fld_d(Address(rdx, rax, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 663 } | |
| 664 | |
| 665 | |
| 666 void TemplateTable::aaload() { | |
| 667 transition(itos, atos); | |
| 668 // rdx: array | |
| 669 index_check(rdx, rax); // kills rbx, | |
| 670 // rax,: index | |
| 304 | 671 __ movptr(rax, Address(rdx, rax, Address::times_ptr, arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 0 | 672 } |
| 673 | |
| 674 | |
| 675 void TemplateTable::baload() { | |
| 676 transition(itos, itos); | |
| 677 // rdx: array | |
| 678 index_check(rdx, rax); // kills rbx, | |
| 679 // rax,: index | |
| 680 // can do better code for P5 - fix this at some point | |
| 681 __ load_signed_byte(rbx, Address(rdx, rax, Address::times_1, arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
| 304 | 682 __ mov(rax, rbx); |
| 0 | 683 } |
| 684 | |
| 685 | |
| 686 void TemplateTable::caload() { | |
| 687 transition(itos, itos); | |
| 688 // rdx: array | |
| 689 index_check(rdx, rax); // kills rbx, | |
| 690 // rax,: index | |
| 691 // can do better code for P5 - may want to improve this at some point | |
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692 __ load_unsigned_short(rbx, Address(rdx, rax, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 304 | 693 __ mov(rax, rbx); |
| 0 | 694 } |
| 695 | |
| 696 // iload followed by caload frequent pair | |
| 697 void TemplateTable::fast_icaload() { | |
| 698 transition(vtos, itos); | |
| 699 // load index out of locals | |
| 700 locals_index(rbx); | |
| 701 __ movl(rax, iaddress(rbx)); | |
| 702 | |
| 703 // rdx: array | |
| 704 index_check(rdx, rax); | |
| 705 // rax,: index | |
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706 __ load_unsigned_short(rbx, Address(rdx, rax, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 304 | 707 __ mov(rax, rbx); |
| 0 | 708 } |
| 709 | |
| 710 void TemplateTable::saload() { | |
| 711 transition(itos, itos); | |
| 712 // rdx: array | |
| 713 index_check(rdx, rax); // kills rbx, | |
| 714 // rax,: index | |
| 715 // can do better code for P5 - may want to improve this at some point | |
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716 __ load_signed_short(rbx, Address(rdx, rax, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
| 304 | 717 __ mov(rax, rbx); |
| 0 | 718 } |
| 719 | |
| 720 | |
| 721 void TemplateTable::iload(int n) { | |
| 722 transition(vtos, itos); | |
| 723 __ movl(rax, iaddress(n)); | |
| 724 } | |
| 725 | |
| 726 | |
| 727 void TemplateTable::lload(int n) { | |
| 728 transition(vtos, ltos); | |
| 304 | 729 __ movptr(rax, laddress(n)); |
| 730 NOT_LP64(__ movptr(rdx, haddress(n))); | |
| 0 | 731 } |
| 732 | |
| 733 | |
| 734 void TemplateTable::fload(int n) { | |
| 735 transition(vtos, ftos); | |
| 736 __ fld_s(faddress(n)); | |
| 737 } | |
| 738 | |
| 739 | |
| 740 void TemplateTable::dload(int n) { | |
| 741 transition(vtos, dtos); | |
| 1506 | 742 __ fld_d(daddress(n)); |
| 0 | 743 } |
| 744 | |
| 745 | |
| 746 void TemplateTable::aload(int n) { | |
| 747 transition(vtos, atos); | |
| 304 | 748 __ movptr(rax, aaddress(n)); |
| 0 | 749 } |
| 750 | |
| 751 | |
| 752 void TemplateTable::aload_0() { | |
| 753 transition(vtos, atos); | |
| 754 // According to bytecode histograms, the pairs: | |
| 755 // | |
| 756 // _aload_0, _fast_igetfield | |
| 757 // _aload_0, _fast_agetfield | |
| 758 // _aload_0, _fast_fgetfield | |
| 759 // | |
| 760 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 761 // bytecode checks if the next bytecode is either _fast_igetfield, | |
| 762 // _fast_agetfield or _fast_fgetfield and then rewrites the | |
| 763 // current bytecode into a pair bytecode; otherwise it rewrites the current | |
| 764 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 765 // | |
| 766 // Note: If the next bytecode is _getfield, the rewrite must be delayed, | |
| 767 // otherwise we may miss an opportunity for a pair. | |
| 768 // | |
| 769 // Also rewrite frequent pairs | |
| 770 // aload_0, aload_1 | |
| 771 // aload_0, iload_1 | |
| 772 // These bytecodes with a small amount of code are most profitable to rewrite | |
| 773 if (RewriteFrequentPairs) { | |
| 774 Label rewrite, done; | |
| 775 // get next byte | |
| 776 __ load_unsigned_byte(rbx, at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
| 777 | |
| 778 // do actual aload_0 | |
| 779 aload(0); | |
| 780 | |
| 781 // if _getfield then wait with rewrite | |
| 782 __ cmpl(rbx, Bytecodes::_getfield); | |
| 783 __ jcc(Assembler::equal, done); | |
| 784 | |
| 785 // if _igetfield then reqrite to _fast_iaccess_0 | |
| 786 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 787 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
| 788 __ movl(rcx, Bytecodes::_fast_iaccess_0); | |
| 789 __ jccb(Assembler::equal, rewrite); | |
| 790 | |
| 791 // if _agetfield then reqrite to _fast_aaccess_0 | |
| 792 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 793 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
| 794 __ movl(rcx, Bytecodes::_fast_aaccess_0); | |
| 795 __ jccb(Assembler::equal, rewrite); | |
| 796 | |
| 797 // if _fgetfield then reqrite to _fast_faccess_0 | |
| 798 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 799 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
| 800 __ movl(rcx, Bytecodes::_fast_faccess_0); | |
| 801 __ jccb(Assembler::equal, rewrite); | |
| 802 | |
| 803 // else rewrite to _fast_aload0 | |
| 804 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "fix bytecode definition"); | |
| 805 __ movl(rcx, Bytecodes::_fast_aload_0); | |
| 806 | |
| 807 // rewrite | |
| 808 // rcx: fast bytecode | |
| 809 __ bind(rewrite); | |
| 810 patch_bytecode(Bytecodes::_aload_0, rcx, rbx, false); | |
| 811 | |
| 812 __ bind(done); | |
| 813 } else { | |
| 814 aload(0); | |
| 815 } | |
| 816 } | |
| 817 | |
| 818 void TemplateTable::istore() { | |
| 819 transition(itos, vtos); | |
| 820 locals_index(rbx); | |
| 821 __ movl(iaddress(rbx), rax); | |
| 822 } | |
| 823 | |
| 824 | |
| 825 void TemplateTable::lstore() { | |
| 826 transition(ltos, vtos); | |
| 827 locals_index(rbx); | |
| 304 | 828 __ movptr(laddress(rbx), rax); |
| 829 NOT_LP64(__ movptr(haddress(rbx), rdx)); | |
| 0 | 830 } |
| 831 | |
| 832 | |
| 833 void TemplateTable::fstore() { | |
| 834 transition(ftos, vtos); | |
| 835 locals_index(rbx); | |
| 836 __ fstp_s(faddress(rbx)); | |
| 837 } | |
| 838 | |
| 839 | |
| 840 void TemplateTable::dstore() { | |
| 841 transition(dtos, vtos); | |
| 842 locals_index(rbx); | |
| 1506 | 843 __ fstp_d(daddress(rbx)); |
| 0 | 844 } |
| 845 | |
| 846 | |
| 847 void TemplateTable::astore() { | |
| 848 transition(vtos, vtos); | |
| 1506 | 849 __ pop_ptr(rax); |
| 0 | 850 locals_index(rbx); |
| 304 | 851 __ movptr(aaddress(rbx), rax); |
| 0 | 852 } |
| 853 | |
| 854 | |
| 855 void TemplateTable::wide_istore() { | |
| 856 transition(vtos, vtos); | |
| 857 __ pop_i(rax); | |
| 858 locals_index_wide(rbx); | |
| 859 __ movl(iaddress(rbx), rax); | |
| 860 } | |
| 861 | |
| 862 | |
| 863 void TemplateTable::wide_lstore() { | |
| 864 transition(vtos, vtos); | |
| 865 __ pop_l(rax, rdx); | |
| 866 locals_index_wide(rbx); | |
| 304 | 867 __ movptr(laddress(rbx), rax); |
| 868 NOT_LP64(__ movl(haddress(rbx), rdx)); | |
| 0 | 869 } |
| 870 | |
| 871 | |
| 872 void TemplateTable::wide_fstore() { | |
| 873 wide_istore(); | |
| 874 } | |
| 875 | |
| 876 | |
| 877 void TemplateTable::wide_dstore() { | |
| 878 wide_lstore(); | |
| 879 } | |
| 880 | |
| 881 | |
| 882 void TemplateTable::wide_astore() { | |
| 883 transition(vtos, vtos); | |
| 1506 | 884 __ pop_ptr(rax); |
| 0 | 885 locals_index_wide(rbx); |
| 304 | 886 __ movptr(aaddress(rbx), rax); |
| 0 | 887 } |
| 888 | |
| 889 | |
| 890 void TemplateTable::iastore() { | |
| 891 transition(itos, vtos); | |
| 892 __ pop_i(rbx); | |
| 893 // rax,: value | |
| 894 // rdx: array | |
| 895 index_check(rdx, rbx); // prefer index in rbx, | |
| 896 // rbx,: index | |
| 897 __ movl(Address(rdx, rbx, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_INT)), rax); | |
| 898 } | |
| 899 | |
| 900 | |
| 901 void TemplateTable::lastore() { | |
| 902 transition(ltos, vtos); | |
| 903 __ pop_i(rbx); | |
| 904 // rax,: low(value) | |
| 905 // rcx: array | |
| 906 // rdx: high(value) | |
| 907 index_check(rcx, rbx); // prefer index in rbx, | |
| 908 // rbx,: index | |
| 304 | 909 __ movptr(Address(rcx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 0 * wordSize), rax); |
| 910 NOT_LP64(__ movl(Address(rcx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_LONG) + 1 * wordSize), rdx)); | |
| 0 | 911 } |
| 912 | |
| 913 | |
| 914 void TemplateTable::fastore() { | |
| 915 transition(ftos, vtos); | |
| 916 __ pop_i(rbx); | |
| 917 // rdx: array | |
| 918 // st0: value | |
| 919 index_check(rdx, rbx); // prefer index in rbx, | |
| 920 // rbx,: index | |
| 921 __ fstp_s(Address(rdx, rbx, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 922 } | |
| 923 | |
| 924 | |
| 925 void TemplateTable::dastore() { | |
| 926 transition(dtos, vtos); | |
| 927 __ pop_i(rbx); | |
| 928 // rdx: array | |
| 929 // st0: value | |
| 930 index_check(rdx, rbx); // prefer index in rbx, | |
| 931 // rbx,: index | |
| 932 __ fstp_d(Address(rdx, rbx, Address::times_8, arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 933 } | |
| 934 | |
| 935 | |
| 936 void TemplateTable::aastore() { | |
| 937 Label is_null, ok_is_subtype, done; | |
| 938 transition(vtos, vtos); | |
| 939 // stack: ..., array, index, value | |
| 304 | 940 __ movptr(rax, at_tos()); // Value |
| 0 | 941 __ movl(rcx, at_tos_p1()); // Index |
| 304 | 942 __ movptr(rdx, at_tos_p2()); // Array |
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943 |
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944 Address element_address(rdx, rcx, Address::times_4, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
| 0 | 945 index_check_without_pop(rdx, rcx); // kills rbx, |
| 946 // do array store check - check for NULL value first | |
| 304 | 947 __ testptr(rax, rax); |
| 0 | 948 __ jcc(Assembler::zero, is_null); |
| 949 | |
| 950 // Move subklass into EBX | |
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951 __ load_klass(rbx, rax); |
| 0 | 952 // Move superklass into EAX |
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953 __ load_klass(rax, rdx); |
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954 __ movptr(rax, Address(rax, ObjArrayKlass::element_klass_offset())); |
| 304 | 955 // Compress array+index*wordSize+12 into a single register. Frees ECX. |
| 362 | 956 __ lea(rdx, element_address); |
| 0 | 957 |
| 958 // Generate subtype check. Blows ECX. Resets EDI to locals. | |
| 959 // Superklass in EAX. Subklass in EBX. | |
| 960 __ gen_subtype_check( rbx, ok_is_subtype ); | |
| 961 | |
| 962 // Come here on failure | |
| 963 // object is at TOS | |
| 964 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
| 965 | |
| 966 // Come here on success | |
| 967 __ bind(ok_is_subtype); | |
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968 |
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969 // Get the value to store |
| 362 | 970 __ movptr(rax, at_rsp()); |
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971 // and store it with appropriate barrier |
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972 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
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973 |
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974 __ jmp(done); |
| 0 | 975 |
| 976 // Have a NULL in EAX, EDX=array, ECX=index. Store NULL at ary[idx] | |
| 977 __ bind(is_null); | |
| 978 __ profile_null_seen(rbx); | |
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979 |
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980 // Store NULL, (noreg means NULL to do_oop_store) |
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6711316: Open source the Garbage-First garbage collector
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parents:
107
diff
changeset
|
981 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
| 0 | 982 |
| 983 // Pop stack arguments | |
| 984 __ bind(done); | |
| 1506 | 985 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
| 0 | 986 } |
| 987 | |
| 988 | |
| 989 void TemplateTable::bastore() { | |
| 990 transition(itos, vtos); | |
| 991 __ pop_i(rbx); | |
| 23614 | 992 // rax: value |
| 993 // rbx: index | |
| 0 | 994 // rdx: array |
| 23614 | 995 index_check(rdx, rbx); // prefer index in rbx |
| 996 // Need to check whether array is boolean or byte | |
| 997 // since both types share the bastore bytecode. | |
| 998 __ load_klass(rcx, rdx); | |
| 999 __ movl(rcx, Address(rcx, Klass::layout_helper_offset())); | |
| 1000 int diffbit = Klass::layout_helper_boolean_diffbit(); | |
| 1001 __ testl(rcx, diffbit); | |
| 1002 Label L_skip; | |
| 1003 __ jccb(Assembler::zero, L_skip); | |
| 1004 __ andl(rax, 1); // if it is a T_BOOLEAN array, mask the stored value to 0/1 | |
| 1005 __ bind(L_skip); | |
| 1006 __ movb(Address(rdx, rbx, Address::times_1, arrayOopDesc::base_offset_in_bytes(T_BYTE)), rax); | |
| 0 | 1007 } |
| 1008 | |
| 1009 | |
| 1010 void TemplateTable::castore() { | |
| 1011 transition(itos, vtos); | |
| 1012 __ pop_i(rbx); | |
| 1013 // rax,: value | |
| 1014 // rdx: array | |
| 1015 index_check(rdx, rbx); // prefer index in rbx, | |
| 1016 // rbx,: index | |
| 1017 __ movw(Address(rdx, rbx, Address::times_2, arrayOopDesc::base_offset_in_bytes(T_CHAR)), rax); | |
| 1018 } | |
| 1019 | |
| 1020 | |
| 1021 void TemplateTable::sastore() { | |
| 1022 castore(); | |
| 1023 } | |
| 1024 | |
| 1025 | |
| 1026 void TemplateTable::istore(int n) { | |
| 1027 transition(itos, vtos); | |
| 1028 __ movl(iaddress(n), rax); | |
| 1029 } | |
| 1030 | |
| 1031 | |
| 1032 void TemplateTable::lstore(int n) { | |
| 1033 transition(ltos, vtos); | |
| 304 | 1034 __ movptr(laddress(n), rax); |
| 1035 NOT_LP64(__ movptr(haddress(n), rdx)); | |
| 0 | 1036 } |
| 1037 | |
| 1038 | |
| 1039 void TemplateTable::fstore(int n) { | |
| 1040 transition(ftos, vtos); | |
| 1041 __ fstp_s(faddress(n)); | |
| 1042 } | |
| 1043 | |
| 1044 | |
| 1045 void TemplateTable::dstore(int n) { | |
| 1046 transition(dtos, vtos); | |
| 1506 | 1047 __ fstp_d(daddress(n)); |
| 0 | 1048 } |
| 1049 | |
| 1050 | |
| 1051 void TemplateTable::astore(int n) { | |
| 1052 transition(vtos, vtos); | |
| 1506 | 1053 __ pop_ptr(rax); |
| 304 | 1054 __ movptr(aaddress(n), rax); |
| 0 | 1055 } |
| 1056 | |
| 1057 | |
| 1058 void TemplateTable::pop() { | |
| 1059 transition(vtos, vtos); | |
| 1506 | 1060 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1061 } |
| 1062 | |
| 1063 | |
| 1064 void TemplateTable::pop2() { | |
| 1065 transition(vtos, vtos); | |
| 1506 | 1066 __ addptr(rsp, 2*Interpreter::stackElementSize); |
| 0 | 1067 } |
| 1068 | |
| 1069 | |
| 1070 void TemplateTable::dup() { | |
| 1071 transition(vtos, vtos); | |
| 1072 // stack: ..., a | |
| 1506 | 1073 __ load_ptr(0, rax); |
| 1074 __ push_ptr(rax); | |
| 0 | 1075 // stack: ..., a, a |
| 1076 } | |
| 1077 | |
| 1078 | |
| 1079 void TemplateTable::dup_x1() { | |
| 1080 transition(vtos, vtos); | |
| 1081 // stack: ..., a, b | |
| 1506 | 1082 __ load_ptr( 0, rax); // load b |
| 1083 __ load_ptr( 1, rcx); // load a | |
| 1084 __ store_ptr(1, rax); // store b | |
| 1085 __ store_ptr(0, rcx); // store a | |
| 1086 __ push_ptr(rax); // push b | |
| 0 | 1087 // stack: ..., b, a, b |
| 1088 } | |
| 1089 | |
| 1090 | |
| 1091 void TemplateTable::dup_x2() { | |
| 1092 transition(vtos, vtos); | |
| 1093 // stack: ..., a, b, c | |
| 1506 | 1094 __ load_ptr( 0, rax); // load c |
| 1095 __ load_ptr( 2, rcx); // load a | |
| 1096 __ store_ptr(2, rax); // store c in a | |
| 1097 __ push_ptr(rax); // push c | |
| 0 | 1098 // stack: ..., c, b, c, c |
| 1506 | 1099 __ load_ptr( 2, rax); // load b |
| 1100 __ store_ptr(2, rcx); // store a in b | |
| 0 | 1101 // stack: ..., c, a, c, c |
| 1506 | 1102 __ store_ptr(1, rax); // store b in c |
| 0 | 1103 // stack: ..., c, a, b, c |
| 1104 } | |
| 1105 | |
| 1106 | |
| 1107 void TemplateTable::dup2() { | |
| 1108 transition(vtos, vtos); | |
| 1109 // stack: ..., a, b | |
| 1506 | 1110 __ load_ptr(1, rax); // load a |
| 1111 __ push_ptr(rax); // push a | |
| 1112 __ load_ptr(1, rax); // load b | |
| 1113 __ push_ptr(rax); // push b | |
| 0 | 1114 // stack: ..., a, b, a, b |
| 1115 } | |
| 1116 | |
| 1117 | |
| 1118 void TemplateTable::dup2_x1() { | |
| 1119 transition(vtos, vtos); | |
| 1120 // stack: ..., a, b, c | |
| 1506 | 1121 __ load_ptr( 0, rcx); // load c |
| 1122 __ load_ptr( 1, rax); // load b | |
| 1123 __ push_ptr(rax); // push b | |
| 1124 __ push_ptr(rcx); // push c | |
| 0 | 1125 // stack: ..., a, b, c, b, c |
| 1506 | 1126 __ store_ptr(3, rcx); // store c in b |
| 0 | 1127 // stack: ..., a, c, c, b, c |
| 1506 | 1128 __ load_ptr( 4, rcx); // load a |
| 1129 __ store_ptr(2, rcx); // store a in 2nd c | |
| 0 | 1130 // stack: ..., a, c, a, b, c |
| 1506 | 1131 __ store_ptr(4, rax); // store b in a |
| 0 | 1132 // stack: ..., b, c, a, b, c |
| 1133 // stack: ..., b, c, a, b, c | |
| 1134 } | |
| 1135 | |
| 1136 | |
| 1137 void TemplateTable::dup2_x2() { | |
| 1138 transition(vtos, vtos); | |
| 1139 // stack: ..., a, b, c, d | |
| 1506 | 1140 __ load_ptr( 0, rcx); // load d |
| 1141 __ load_ptr( 1, rax); // load c | |
| 1142 __ push_ptr(rax); // push c | |
| 1143 __ push_ptr(rcx); // push d | |
| 0 | 1144 // stack: ..., a, b, c, d, c, d |
| 1506 | 1145 __ load_ptr( 4, rax); // load b |
| 1146 __ store_ptr(2, rax); // store b in d | |
| 1147 __ store_ptr(4, rcx); // store d in b | |
| 0 | 1148 // stack: ..., a, d, c, b, c, d |
| 1506 | 1149 __ load_ptr( 5, rcx); // load a |
| 1150 __ load_ptr( 3, rax); // load c | |
| 1151 __ store_ptr(3, rcx); // store a in c | |
| 1152 __ store_ptr(5, rax); // store c in a | |
| 0 | 1153 // stack: ..., c, d, a, b, c, d |
| 1154 // stack: ..., c, d, a, b, c, d | |
| 1155 } | |
| 1156 | |
| 1157 | |
| 1158 void TemplateTable::swap() { | |
| 1159 transition(vtos, vtos); | |
| 1160 // stack: ..., a, b | |
| 1506 | 1161 __ load_ptr( 1, rcx); // load a |
| 1162 __ load_ptr( 0, rax); // load b | |
| 1163 __ store_ptr(0, rcx); // store a in b | |
| 1164 __ store_ptr(1, rax); // store b in a | |
| 0 | 1165 // stack: ..., b, a |
| 1166 } | |
| 1167 | |
| 1168 | |
| 1169 void TemplateTable::iop2(Operation op) { | |
| 1170 transition(itos, itos); | |
| 1171 switch (op) { | |
| 1506 | 1172 case add : __ pop_i(rdx); __ addl (rax, rdx); break; |
| 304 | 1173 case sub : __ mov(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; |
| 1506 | 1174 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; |
| 1175 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
| 1176 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
| 1177 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
| 304 | 1178 case shl : __ mov(rcx, rax); __ pop_i(rax); __ shll (rax); break; // implicit masking of lower 5 bits by Intel shift instr. |
| 1179 case shr : __ mov(rcx, rax); __ pop_i(rax); __ sarl (rax); break; // implicit masking of lower 5 bits by Intel shift instr. | |
| 1180 case ushr : __ mov(rcx, rax); __ pop_i(rax); __ shrl (rax); break; // implicit masking of lower 5 bits by Intel shift instr. | |
| 0 | 1181 default : ShouldNotReachHere(); |
| 1182 } | |
| 1183 } | |
| 1184 | |
| 1185 | |
| 1186 void TemplateTable::lop2(Operation op) { | |
| 1187 transition(ltos, ltos); | |
| 1188 __ pop_l(rbx, rcx); | |
| 1189 switch (op) { | |
| 1506 | 1190 case add : __ addl(rax, rbx); __ adcl(rdx, rcx); break; |
| 1191 case sub : __ subl(rbx, rax); __ sbbl(rcx, rdx); | |
| 1192 __ mov (rax, rbx); __ mov (rdx, rcx); break; | |
| 1193 case _and : __ andl(rax, rbx); __ andl(rdx, rcx); break; | |
| 1194 case _or : __ orl (rax, rbx); __ orl (rdx, rcx); break; | |
| 1195 case _xor : __ xorl(rax, rbx); __ xorl(rdx, rcx); break; | |
| 1196 default : ShouldNotReachHere(); | |
| 0 | 1197 } |
| 1198 } | |
| 1199 | |
| 1200 | |
| 1201 void TemplateTable::idiv() { | |
| 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); | |
| 1210 } | |
| 1211 | |
| 1212 | |
| 1213 void TemplateTable::irem() { | |
| 1214 transition(itos, itos); | |
| 304 | 1215 __ mov(rcx, rax); |
| 0 | 1216 __ pop_i(rax); |
| 1217 // Note: could xor rax, and rcx and compare with (-1 ^ min_int). If | |
| 1218 // they are not equal, one could do a normal division (no correction | |
| 1219 // needed), which may speed up this implementation for the common case. | |
| 1220 // (see also JVM spec., p.243 & p.271) | |
| 1221 __ corrected_idivl(rcx); | |
| 304 | 1222 __ mov(rax, rdx); |
| 0 | 1223 } |
| 1224 | |
| 1225 | |
| 1226 void TemplateTable::lmul() { | |
| 1227 transition(ltos, ltos); | |
| 1228 __ pop_l(rbx, rcx); | |
| 304 | 1229 __ push(rcx); __ push(rbx); |
| 1230 __ push(rdx); __ push(rax); | |
| 0 | 1231 __ lmul(2 * wordSize, 0); |
| 304 | 1232 __ addptr(rsp, 4 * wordSize); // take off temporaries |
| 0 | 1233 } |
| 1234 | |
| 1235 | |
| 1236 void TemplateTable::ldiv() { | |
| 1237 transition(ltos, ltos); | |
| 1238 __ pop_l(rbx, rcx); | |
| 304 | 1239 __ push(rcx); __ push(rbx); |
| 1240 __ push(rdx); __ push(rax); | |
| 0 | 1241 // check if y = 0 |
| 1242 __ orl(rax, rdx); | |
| 1243 __ jump_cc(Assembler::zero, | |
| 1244 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1245 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 304 | 1246 __ addptr(rsp, 4 * wordSize); // take off temporaries |
| 0 | 1247 } |
| 1248 | |
| 1249 | |
| 1250 void TemplateTable::lrem() { | |
| 1251 transition(ltos, ltos); | |
| 1252 __ pop_l(rbx, rcx); | |
| 304 | 1253 __ push(rcx); __ push(rbx); |
| 1254 __ push(rdx); __ push(rax); | |
| 0 | 1255 // check if y = 0 |
| 1256 __ orl(rax, rdx); | |
| 1257 __ jump_cc(Assembler::zero, | |
| 1258 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1259 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 304 | 1260 __ addptr(rsp, 4 * wordSize); |
| 0 | 1261 } |
| 1262 | |
| 1263 | |
| 1264 void TemplateTable::lshl() { | |
| 1265 transition(itos, ltos); | |
| 1266 __ movl(rcx, rax); // get shift count | |
| 1267 __ pop_l(rax, rdx); // get shift value | |
| 1268 __ lshl(rdx, rax); | |
| 1269 } | |
| 1270 | |
| 1271 | |
| 1272 void TemplateTable::lshr() { | |
| 1273 transition(itos, ltos); | |
| 304 | 1274 __ mov(rcx, rax); // get shift count |
| 0 | 1275 __ pop_l(rax, rdx); // get shift value |
| 1276 __ lshr(rdx, rax, true); | |
| 1277 } | |
| 1278 | |
| 1279 | |
| 1280 void TemplateTable::lushr() { | |
| 1281 transition(itos, ltos); | |
| 304 | 1282 __ mov(rcx, rax); // get shift count |
| 0 | 1283 __ pop_l(rax, rdx); // get shift value |
| 1284 __ lshr(rdx, rax); | |
| 1285 } | |
| 1286 | |
| 1287 | |
| 1288 void TemplateTable::fop2(Operation op) { | |
| 1289 transition(ftos, ftos); | |
| 1290 switch (op) { | |
| 1291 case add: __ fadd_s (at_rsp()); break; | |
| 1292 case sub: __ fsubr_s(at_rsp()); break; | |
| 1293 case mul: __ fmul_s (at_rsp()); break; | |
| 1294 case div: __ fdivr_s(at_rsp()); break; | |
| 1295 case rem: __ fld_s (at_rsp()); __ fremr(rax); break; | |
| 1296 default : ShouldNotReachHere(); | |
| 1297 } | |
| 1298 __ f2ieee(); | |
| 304 | 1299 __ pop(rax); // pop float thing off |
| 0 | 1300 } |
| 1301 | |
| 1302 | |
| 1303 void TemplateTable::dop2(Operation op) { | |
| 1304 transition(dtos, dtos); | |
| 1305 | |
| 1306 switch (op) { | |
| 1307 case add: __ fadd_d (at_rsp()); break; | |
| 1308 case sub: __ fsubr_d(at_rsp()); break; | |
| 1309 case mul: { | |
| 1310 Label L_strict; | |
| 1311 Label L_join; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1312 const Address access_flags (rcx, Method::access_flags_offset()); |
| 0 | 1313 __ get_method(rcx); |
| 1314 __ movl(rcx, access_flags); | |
| 1315 __ testl(rcx, JVM_ACC_STRICT); | |
| 1316 __ jccb(Assembler::notZero, L_strict); | |
| 1317 __ fmul_d (at_rsp()); | |
| 1318 __ jmpb(L_join); | |
| 1319 __ bind(L_strict); | |
| 1320 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias1())); | |
| 1321 __ fmulp(); | |
| 1322 __ fmul_d (at_rsp()); | |
| 1323 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias2())); | |
| 1324 __ fmulp(); | |
| 1325 __ bind(L_join); | |
| 1326 break; | |
| 1327 } | |
| 1328 case div: { | |
| 1329 Label L_strict; | |
| 1330 Label L_join; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1331 const Address access_flags (rcx, Method::access_flags_offset()); |
| 0 | 1332 __ get_method(rcx); |
| 1333 __ movl(rcx, access_flags); | |
| 1334 __ testl(rcx, JVM_ACC_STRICT); | |
| 1335 __ jccb(Assembler::notZero, L_strict); | |
| 1336 __ fdivr_d(at_rsp()); | |
| 1337 __ jmp(L_join); | |
| 1338 __ bind(L_strict); | |
| 1339 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias1())); | |
| 1340 __ fmul_d (at_rsp()); | |
| 1341 __ fdivrp(); | |
| 1342 __ fld_x(ExternalAddress(StubRoutines::addr_fpu_subnormal_bias2())); | |
| 1343 __ fmulp(); | |
| 1344 __ bind(L_join); | |
| 1345 break; | |
| 1346 } | |
| 1347 case rem: __ fld_d (at_rsp()); __ fremr(rax); break; | |
| 1348 default : ShouldNotReachHere(); | |
| 1349 } | |
| 1350 __ d2ieee(); | |
| 1351 // Pop double precision number from rsp. | |
| 304 | 1352 __ pop(rax); |
| 1353 __ pop(rdx); | |
| 0 | 1354 } |
| 1355 | |
| 1356 | |
| 1357 void TemplateTable::ineg() { | |
| 1358 transition(itos, itos); | |
| 1359 __ negl(rax); | |
| 1360 } | |
| 1361 | |
| 1362 | |
| 1363 void TemplateTable::lneg() { | |
| 1364 transition(ltos, ltos); | |
| 1365 __ lneg(rdx, rax); | |
| 1366 } | |
| 1367 | |
| 1368 | |
| 1369 void TemplateTable::fneg() { | |
| 1370 transition(ftos, ftos); | |
| 1371 __ fchs(); | |
| 1372 } | |
| 1373 | |
| 1374 | |
| 1375 void TemplateTable::dneg() { | |
| 1376 transition(dtos, dtos); | |
| 1377 __ fchs(); | |
| 1378 } | |
| 1379 | |
| 1380 | |
| 1381 void TemplateTable::iinc() { | |
| 1382 transition(vtos, vtos); | |
| 1383 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
| 1384 locals_index(rbx); | |
| 1385 __ addl(iaddress(rbx), rdx); | |
| 1386 } | |
| 1387 | |
| 1388 | |
| 1389 void TemplateTable::wide_iinc() { | |
| 1390 transition(vtos, vtos); | |
| 1391 __ movl(rdx, at_bcp(4)); // get constant | |
| 1392 locals_index_wide(rbx); | |
| 304 | 1393 __ bswapl(rdx); // swap bytes & sign-extend constant |
| 0 | 1394 __ sarl(rdx, 16); |
| 1395 __ addl(iaddress(rbx), rdx); | |
| 1396 // Note: should probably use only one movl to get both | |
| 1397 // the index and the constant -> fix this | |
| 1398 } | |
| 1399 | |
| 1400 | |
| 1401 void TemplateTable::convert() { | |
| 1402 // Checking | |
| 1403 #ifdef ASSERT | |
| 1404 { TosState tos_in = ilgl; | |
| 1405 TosState tos_out = ilgl; | |
| 1406 switch (bytecode()) { | |
| 1407 case Bytecodes::_i2l: // fall through | |
| 1408 case Bytecodes::_i2f: // fall through | |
| 1409 case Bytecodes::_i2d: // fall through | |
| 1410 case Bytecodes::_i2b: // fall through | |
| 1411 case Bytecodes::_i2c: // fall through | |
| 1412 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1413 case Bytecodes::_l2i: // fall through | |
| 1414 case Bytecodes::_l2f: // fall through | |
| 1415 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1416 case Bytecodes::_f2i: // fall through | |
| 1417 case Bytecodes::_f2l: // fall through | |
| 1418 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1419 case Bytecodes::_d2i: // fall through | |
| 1420 case Bytecodes::_d2l: // fall through | |
| 1421 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1422 default : ShouldNotReachHere(); | |
| 1423 } | |
| 1424 switch (bytecode()) { | |
| 1425 case Bytecodes::_l2i: // fall through | |
| 1426 case Bytecodes::_f2i: // fall through | |
| 1427 case Bytecodes::_d2i: // fall through | |
| 1428 case Bytecodes::_i2b: // fall through | |
| 1429 case Bytecodes::_i2c: // fall through | |
| 1430 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1431 case Bytecodes::_i2l: // fall through | |
| 1432 case Bytecodes::_f2l: // fall through | |
| 1433 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1434 case Bytecodes::_i2f: // fall through | |
| 1435 case Bytecodes::_l2f: // fall through | |
| 1436 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1437 case Bytecodes::_i2d: // fall through | |
| 1438 case Bytecodes::_l2d: // fall through | |
| 1439 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1440 default : ShouldNotReachHere(); | |
| 1441 } | |
| 1442 transition(tos_in, tos_out); | |
| 1443 } | |
| 1444 #endif // ASSERT | |
| 1445 | |
| 1446 // Conversion | |
| 304 | 1447 // (Note: use push(rcx)/pop(rcx) for 1/2-word stack-ptr manipulation) |
| 0 | 1448 switch (bytecode()) { |
| 1449 case Bytecodes::_i2l: | |
| 1450 __ extend_sign(rdx, rax); | |
| 1451 break; | |
| 1452 case Bytecodes::_i2f: | |
| 304 | 1453 __ push(rax); // store int on tos |
| 0 | 1454 __ fild_s(at_rsp()); // load int to ST0 |
| 1455 __ f2ieee(); // truncate to float size | |
| 304 | 1456 __ pop(rcx); // adjust rsp |
| 0 | 1457 break; |
| 1458 case Bytecodes::_i2d: | |
| 304 | 1459 __ push(rax); // add one slot for d2ieee() |
| 1460 __ push(rax); // store int on tos | |
| 0 | 1461 __ fild_s(at_rsp()); // load int to ST0 |
| 1462 __ d2ieee(); // truncate to double size | |
| 304 | 1463 __ pop(rcx); // adjust rsp |
| 1464 __ pop(rcx); | |
| 0 | 1465 break; |
| 1466 case Bytecodes::_i2b: | |
| 1467 __ shll(rax, 24); // truncate upper 24 bits | |
| 1468 __ sarl(rax, 24); // and sign-extend byte | |
| 304 | 1469 LP64_ONLY(__ movsbl(rax, rax)); |
| 0 | 1470 break; |
| 1471 case Bytecodes::_i2c: | |
| 1472 __ andl(rax, 0xFFFF); // truncate upper 16 bits | |
| 304 | 1473 LP64_ONLY(__ movzwl(rax, rax)); |
| 0 | 1474 break; |
| 1475 case Bytecodes::_i2s: | |
| 1476 __ shll(rax, 16); // truncate upper 16 bits | |
| 1477 __ sarl(rax, 16); // and sign-extend short | |
| 304 | 1478 LP64_ONLY(__ movswl(rax, rax)); |
| 0 | 1479 break; |
| 1480 case Bytecodes::_l2i: | |
| 1481 /* nothing to do */ | |
| 1482 break; | |
| 1483 case Bytecodes::_l2f: | |
| 304 | 1484 __ push(rdx); // store long on tos |
| 1485 __ push(rax); | |
| 0 | 1486 __ fild_d(at_rsp()); // load long to ST0 |
| 1487 __ f2ieee(); // truncate to float size | |
| 304 | 1488 __ pop(rcx); // adjust rsp |
| 1489 __ pop(rcx); | |
| 0 | 1490 break; |
| 1491 case Bytecodes::_l2d: | |
| 304 | 1492 __ push(rdx); // store long on tos |
| 1493 __ push(rax); | |
| 0 | 1494 __ fild_d(at_rsp()); // load long to ST0 |
| 1495 __ d2ieee(); // truncate to double size | |
| 304 | 1496 __ pop(rcx); // adjust rsp |
| 1497 __ pop(rcx); | |
| 0 | 1498 break; |
| 1499 case Bytecodes::_f2i: | |
| 304 | 1500 __ push(rcx); // reserve space for argument |
| 0 | 1501 __ fstp_s(at_rsp()); // pass float argument on stack |
| 1502 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
| 1503 break; | |
| 1504 case Bytecodes::_f2l: | |
| 304 | 1505 __ push(rcx); // reserve space for argument |
| 0 | 1506 __ fstp_s(at_rsp()); // pass float argument on stack |
| 1507 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
| 1508 break; | |
| 1509 case Bytecodes::_f2d: | |
| 1510 /* nothing to do */ | |
| 1511 break; | |
| 1512 case Bytecodes::_d2i: | |
| 304 | 1513 __ push(rcx); // reserve space for argument |
| 1514 __ push(rcx); | |
| 0 | 1515 __ fstp_d(at_rsp()); // pass double argument on stack |
| 1516 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 2); | |
| 1517 break; | |
| 1518 case Bytecodes::_d2l: | |
| 304 | 1519 __ push(rcx); // reserve space for argument |
| 1520 __ push(rcx); | |
| 0 | 1521 __ fstp_d(at_rsp()); // pass double argument on stack |
| 1522 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 2); | |
| 1523 break; | |
| 1524 case Bytecodes::_d2f: | |
| 304 | 1525 __ push(rcx); // reserve space for f2ieee() |
| 0 | 1526 __ f2ieee(); // truncate to float size |
| 304 | 1527 __ pop(rcx); // adjust rsp |
| 0 | 1528 break; |
| 1529 default : | |
| 1530 ShouldNotReachHere(); | |
| 1531 } | |
| 1532 } | |
| 1533 | |
| 1534 | |
| 1535 void TemplateTable::lcmp() { | |
| 1536 transition(ltos, itos); | |
| 1537 // y = rdx:rax | |
| 1538 __ pop_l(rbx, rcx); // get x = rcx:rbx | |
| 1539 __ lcmp2int(rcx, rbx, rdx, rax);// rcx := cmp(x, y) | |
| 304 | 1540 __ mov(rax, rcx); |
| 0 | 1541 } |
| 1542 | |
| 1543 | |
| 1544 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1545 if (is_float) { | |
| 1546 __ fld_s(at_rsp()); | |
| 1547 } else { | |
| 1548 __ fld_d(at_rsp()); | |
| 304 | 1549 __ pop(rdx); |
| 0 | 1550 } |
| 304 | 1551 __ pop(rcx); |
| 0 | 1552 __ fcmp2int(rax, unordered_result < 0); |
| 1553 } | |
| 1554 | |
| 1555 | |
| 1556 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1557 __ get_method(rcx); // ECX holds method | |
| 1558 __ profile_taken_branch(rax,rbx); // EAX holds updated MDP, EBX holds bumped taken count | |
| 1559 | |
|
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1560 const ByteSize be_offset = MethodCounters::backedge_counter_offset() + |
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|
1561 InvocationCounter::counter_offset(); |
|
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|
1562 const ByteSize inv_offset = MethodCounters::invocation_counter_offset() + |
|
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|
1563 InvocationCounter::counter_offset(); |
| 0 | 1564 |
| 1565 // Load up EDX with the branch displacement | |
|
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|
1566 if (is_wide) { |
|
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|
1567 __ movl(rdx, at_bcp(1)); |
|
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|
1568 } else { |
|
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diff
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|
1569 __ load_signed_short(rdx, at_bcp(1)); |
|
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|
1570 } |
| 304 | 1571 __ bswapl(rdx); |
| 0 | 1572 if (!is_wide) __ sarl(rdx, 16); |
| 304 | 1573 LP64_ONLY(__ movslq(rdx, rdx)); |
| 1574 | |
| 0 | 1575 |
| 1576 // Handle all the JSR stuff here, then exit. | |
| 1577 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1578 // non-JSR normal-branch stuff occurring below. |
| 0 | 1579 if (is_jsr) { |
| 1580 // Pre-load the next target bytecode into EBX | |
| 1581 __ load_unsigned_byte(rbx, Address(rsi, rdx, Address::times_1, 0)); | |
| 1582 | |
| 1583 // compute return address as bci in rax, | |
|
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1584 __ lea(rax, at_bcp((is_wide ? 5 : 3) - in_bytes(ConstMethod::codes_offset()))); |
|
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|
1585 __ subptr(rax, Address(rcx, Method::const_offset())); |
| 362 | 1586 // Adjust the bcp in RSI by the displacement in EDX |
| 304 | 1587 __ addptr(rsi, rdx); |
| 0 | 1588 // Push return address |
| 1589 __ push_i(rax); | |
| 1590 // jsr returns vtos | |
| 1591 __ dispatch_only_noverify(vtos); | |
| 1592 return; | |
| 1593 } | |
| 1594 | |
| 1595 // Normal (non-jsr) branch handling | |
| 1596 | |
| 362 | 1597 // Adjust the bcp in RSI by the displacement in EDX |
| 304 | 1598 __ addptr(rsi, rdx); |
| 0 | 1599 |
| 1600 assert(UseLoopCounter || !UseOnStackReplacement, "on-stack-replacement requires loop counters"); | |
| 1601 Label backedge_counter_overflow; | |
| 1602 Label profile_method; | |
| 1603 Label dispatch; | |
| 1604 if (UseLoopCounter) { | |
| 1605 // increment backedge counter for backward branches | |
| 1606 // rax,: MDO | |
| 1607 // rbx,: MDO bumped taken-count | |
| 1608 // rcx: method | |
| 1609 // rdx: target offset | |
| 1610 // rsi: target bcp | |
| 1611 // rdi: locals pointer | |
| 1612 __ testl(rdx, rdx); // check if forward or backward branch | |
| 1613 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
| 1614 | |
|
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|
1615 // check if MethodCounters exists |
|
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|
1616 Label has_counters; |
|
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|
1617 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
|
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|
1618 __ testptr(rax, rax); |
|
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|
1619 __ jcc(Assembler::notZero, has_counters); |
|
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|
1620 __ push(rdx); |
|
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|
1621 __ push(rcx); |
|
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|
1622 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::build_method_counters), |
|
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|
1623 rcx); |
|
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|
1624 __ pop(rcx); |
|
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|
1625 __ pop(rdx); |
|
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|
1626 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
|
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|
1627 __ testptr(rax, rax); |
|
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|
1628 __ jcc(Assembler::zero, dispatch); |
|
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|
1629 __ bind(has_counters); |
|
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|
1630 |
| 1783 | 1631 if (TieredCompilation) { |
| 1632 Label no_mdo; | |
| 1633 int increment = InvocationCounter::count_increment; | |
| 1634 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1635 if (ProfileInterpreter) { | |
| 1636 // Are we profiling? | |
|
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|
1637 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
| 1783 | 1638 __ testptr(rbx, rbx); |
| 1639 __ jccb(Assembler::zero, no_mdo); | |
| 1640 // Increment the MDO backedge counter | |
|
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|
1641 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1642 in_bytes(InvocationCounter::counter_offset())); |
| 1643 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
| 1644 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 1645 __ jmp(dispatch); | |
| 0 | 1646 } |
| 1783 | 1647 __ bind(no_mdo); |
|
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|
1648 // Increment backedge counter in MethodCounters* |
|
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|
1649 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1650 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
| 1651 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 0 | 1652 } else { |
| 1783 | 1653 // increment counter |
|
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|
1654 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1655 __ movl(rax, Address(rcx, be_offset)); // load backedge counter |
| 1656 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
| 1657 __ movl(Address(rcx, be_offset), rax); // store counter | |
| 1658 | |
| 1659 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
|
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|
1660 |
| 1783 | 1661 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits |
| 1662 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
| 1663 | |
| 1664 if (ProfileInterpreter) { | |
| 1665 // Test to see if we should create a method data oop | |
| 0 | 1666 __ cmp32(rax, |
| 1783 | 1667 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
| 1668 __ jcc(Assembler::less, dispatch); | |
| 1669 | |
| 1670 // if no method data exists, go to profile method | |
| 1671 __ test_method_data_pointer(rax, profile_method); | |
| 1672 | |
| 1673 if (UseOnStackReplacement) { | |
| 1674 // check for overflow against rbx, which is the MDO taken count | |
| 1675 __ cmp32(rbx, | |
| 1676 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1677 __ jcc(Assembler::below, dispatch); | |
| 1678 | |
| 1679 // When ProfileInterpreter is on, the backedge_count comes from the | |
|
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diff
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1680 // MethodData*, which value does not get reset on the call to |
| 1783 | 1681 // frequency_counter_overflow(). To avoid excessive calls to the overflow |
| 1682 // routine while the method is being compiled, add a second test to make | |
| 1683 // sure the overflow function is called only once every overflow_frequency. | |
| 1684 const int overflow_frequency = 1024; | |
| 1685 __ andptr(rbx, overflow_frequency-1); | |
| 1686 __ jcc(Assembler::zero, backedge_counter_overflow); | |
| 1687 } | |
| 1688 } else { | |
| 1689 if (UseOnStackReplacement) { | |
| 1690 // check for overflow against rax, which is the sum of the counters | |
| 1691 __ cmp32(rax, | |
| 1692 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1693 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
| 1694 | |
| 1695 } | |
| 0 | 1696 } |
| 1697 } | |
| 1698 __ bind(dispatch); | |
| 1699 } | |
| 1700 | |
| 1701 // Pre-load the next target bytecode into EBX | |
| 1702 __ load_unsigned_byte(rbx, Address(rsi, 0)); | |
| 1703 | |
| 1704 // continue with the bytecode @ target | |
| 1705 // rax,: return bci for jsr's, unused otherwise | |
| 1706 // rbx,: target bytecode | |
| 1707 // rsi: target bcp | |
| 1708 __ dispatch_only(vtos); | |
| 1709 | |
| 1710 if (UseLoopCounter) { | |
| 1711 if (ProfileInterpreter) { | |
| 1712 // Out-of-line code to allocate method data oop. | |
| 1713 __ bind(profile_method); | |
|
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changeset
|
1714 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
| 0 | 1715 __ load_unsigned_byte(rbx, Address(rsi, 0)); // restore target bytecode |
|
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diff
changeset
|
1716 __ set_method_data_pointer_for_bcp(); |
| 0 | 1717 __ jmp(dispatch); |
| 1718 } | |
| 1719 | |
| 1720 if (UseOnStackReplacement) { | |
| 1721 | |
| 1722 // invocation counter overflow | |
| 1723 __ bind(backedge_counter_overflow); | |
| 304 | 1724 __ negptr(rdx); |
| 1725 __ addptr(rdx, rsi); // branch bcp | |
| 0 | 1726 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), rdx); |
| 1727 __ load_unsigned_byte(rbx, Address(rsi, 0)); // restore target bytecode | |
| 1728 | |
|
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diff
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|
1729 Label maybe_load_mdp; |
|
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|
1730 // rax: osr nmethod (osr ok) or NULL (osr not possible) |
|
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|
1731 // rbx: target bytecode |
| 0 | 1732 // rdx: scratch |
| 1733 // rdi: locals pointer | |
| 1734 // rsi: bcp | |
|
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Tom Rodriguez <tom.rodriguez@oracle.com>
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|
1735 __ testptr(rax, rax); // test result |
|
ca5c97226d1c
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|
1736 __ jcc(Assembler::zero, maybe_load_mdp); // no osr if null |
| 0 | 1737 // nmethod may have been invalidated (VM may block upon call_VM return) |
| 1738 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
| 1739 __ cmpl(rcx, InvalidOSREntryBci); | |
|
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Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
1740 __ jcc(Assembler::equal, maybe_load_mdp); |
| 0 | 1741 |
| 1742 // We have the address of an on stack replacement routine in rax, | |
| 1743 // We need to prepare to execute the OSR method. First we must | |
| 1744 // migrate the locals and monitors off of the stack. | |
| 1745 | |
| 304 | 1746 __ mov(rbx, rax); // save the nmethod |
| 0 | 1747 |
| 1748 const Register thread = rcx; | |
| 1749 __ get_thread(thread); | |
| 1750 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
| 1751 // rax, is OSR buffer, move it to expected parameter location | |
| 304 | 1752 __ mov(rcx, rax); |
| 0 | 1753 |
| 1754 // pop the interpreter frame | |
| 304 | 1755 __ movptr(rdx, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1756 __ leave(); // remove frame anchor |
| 304 | 1757 __ pop(rdi); // get return address |
| 1758 __ mov(rsp, rdx); // set sp to sender sp | |
| 0 | 1759 |
| 1760 // Align stack pointer for compiled code (note that caller is | |
| 1761 // responsible for undoing this fixup by remembering the old SP | |
| 1762 // in an rbp,-relative location) | |
| 304 | 1763 __ andptr(rsp, -(StackAlignmentInBytes)); |
| 0 | 1764 |
| 1765 // push the (possibly adjusted) return address | |
| 304 | 1766 __ push(rdi); |
| 0 | 1767 |
| 1768 // and begin the OSR nmethod | |
|
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diff
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|
1769 __ jmp(Address(rbx, nmethod::osr_entry_point_offset())); |
|
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|
1770 |
|
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|
1771 // Load the MDO in case it was created by frequency_counter_overflow |
|
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|
1772 __ bind(maybe_load_mdp); |
|
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|
1773 if (ProfileInterpreter) { |
|
0e0a4ebf09d7
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|
1774 __ set_method_data_pointer_for_bcp(); |
|
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|
1775 } |
|
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|
1776 __ jmp(dispatch); |
| 0 | 1777 } |
| 1778 } | |
| 1779 } | |
| 1780 | |
| 1781 | |
| 1782 void TemplateTable::if_0cmp(Condition cc) { | |
| 1783 transition(itos, vtos); | |
| 1784 // assume branch is more often taken than not (loops use backward branches) | |
| 1785 Label not_taken; | |
| 1786 __ testl(rax, rax); | |
| 1787 __ jcc(j_not(cc), not_taken); | |
| 1788 branch(false, false); | |
| 1789 __ bind(not_taken); | |
| 1790 __ profile_not_taken_branch(rax); | |
| 1791 } | |
| 1792 | |
| 1793 | |
| 1794 void TemplateTable::if_icmp(Condition cc) { | |
| 1795 transition(itos, vtos); | |
| 1796 // assume branch is more often taken than not (loops use backward branches) | |
| 1797 Label not_taken; | |
| 1798 __ pop_i(rdx); | |
| 1799 __ cmpl(rdx, rax); | |
| 1800 __ jcc(j_not(cc), not_taken); | |
| 1801 branch(false, false); | |
| 1802 __ bind(not_taken); | |
| 1803 __ profile_not_taken_branch(rax); | |
| 1804 } | |
| 1805 | |
| 1806 | |
| 1807 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1808 transition(atos, vtos); | |
| 1809 // assume branch is more often taken than not (loops use backward branches) | |
| 1810 Label not_taken; | |
| 304 | 1811 __ testptr(rax, rax); |
| 0 | 1812 __ jcc(j_not(cc), not_taken); |
| 1813 branch(false, false); | |
| 1814 __ bind(not_taken); | |
| 1815 __ profile_not_taken_branch(rax); | |
| 1816 } | |
| 1817 | |
| 1818 | |
| 1819 void TemplateTable::if_acmp(Condition cc) { | |
| 1820 transition(atos, vtos); | |
| 1821 // assume branch is more often taken than not (loops use backward branches) | |
| 1822 Label not_taken; | |
| 1823 __ pop_ptr(rdx); | |
| 304 | 1824 __ cmpptr(rdx, rax); |
| 0 | 1825 __ jcc(j_not(cc), not_taken); |
| 1826 branch(false, false); | |
| 1827 __ bind(not_taken); | |
| 1828 __ profile_not_taken_branch(rax); | |
| 1829 } | |
| 1830 | |
| 1831 | |
| 1832 void TemplateTable::ret() { | |
| 1833 transition(vtos, vtos); | |
| 1834 locals_index(rbx); | |
| 304 | 1835 __ movptr(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1836 __ profile_ret(rbx, rcx); |
| 1837 __ get_method(rax); | |
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1838 __ movptr(rsi, Address(rax, Method::const_offset())); |
| 304 | 1839 __ lea(rsi, Address(rsi, rbx, Address::times_1, |
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1840 ConstMethod::codes_offset())); |
| 0 | 1841 __ dispatch_next(vtos); |
| 1842 } | |
| 1843 | |
| 1844 | |
| 1845 void TemplateTable::wide_ret() { | |
| 1846 transition(vtos, vtos); | |
| 1847 locals_index_wide(rbx); | |
| 304 | 1848 __ movptr(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1849 __ profile_ret(rbx, rcx); |
| 1850 __ get_method(rax); | |
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1851 __ movptr(rsi, Address(rax, Method::const_offset())); |
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1852 __ lea(rsi, Address(rsi, rbx, Address::times_1, ConstMethod::codes_offset())); |
| 0 | 1853 __ dispatch_next(vtos); |
| 1854 } | |
| 1855 | |
| 1856 | |
| 1857 void TemplateTable::tableswitch() { | |
| 1858 Label default_case, continue_execution; | |
| 1859 transition(itos, vtos); | |
| 1860 // align rsi | |
| 304 | 1861 __ lea(rbx, at_bcp(wordSize)); |
| 1862 __ andptr(rbx, -wordSize); | |
| 0 | 1863 // load lo & hi |
| 1864 __ movl(rcx, Address(rbx, 1 * wordSize)); | |
| 1865 __ movl(rdx, Address(rbx, 2 * wordSize)); | |
| 304 | 1866 __ bswapl(rcx); |
| 1867 __ bswapl(rdx); | |
| 0 | 1868 // check against lo & hi |
| 1869 __ cmpl(rax, rcx); | |
| 1870 __ jccb(Assembler::less, default_case); | |
| 1871 __ cmpl(rax, rdx); | |
| 1872 __ jccb(Assembler::greater, default_case); | |
| 1873 // lookup dispatch offset | |
| 1874 __ subl(rax, rcx); | |
| 304 | 1875 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); |
| 0 | 1876 __ profile_switch_case(rax, rbx, rcx); |
| 1877 // continue execution | |
| 1878 __ bind(continue_execution); | |
| 304 | 1879 __ bswapl(rdx); |
| 0 | 1880 __ load_unsigned_byte(rbx, Address(rsi, rdx, Address::times_1)); |
| 304 | 1881 __ addptr(rsi, rdx); |
| 0 | 1882 __ dispatch_only(vtos); |
| 1883 // handle default | |
| 1884 __ bind(default_case); | |
| 1885 __ profile_switch_default(rax); | |
| 1886 __ movl(rdx, Address(rbx, 0)); | |
| 1887 __ jmp(continue_execution); | |
| 1888 } | |
| 1889 | |
| 1890 | |
| 1891 void TemplateTable::lookupswitch() { | |
| 1892 transition(itos, itos); | |
| 1893 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1894 } | |
| 1895 | |
| 1896 | |
| 1897 void TemplateTable::fast_linearswitch() { | |
| 1898 transition(itos, vtos); | |
| 1899 Label loop_entry, loop, found, continue_execution; | |
| 304 | 1900 // bswapl rax, so we can avoid bswapping the table entries |
| 1901 __ bswapl(rax); | |
| 0 | 1902 // align rsi |
| 304 | 1903 __ lea(rbx, at_bcp(wordSize)); // btw: should be able to get rid of this instruction (change offsets below) |
| 1904 __ andptr(rbx, -wordSize); | |
| 0 | 1905 // set counter |
| 1906 __ movl(rcx, Address(rbx, wordSize)); | |
| 304 | 1907 __ bswapl(rcx); |
| 0 | 1908 __ jmpb(loop_entry); |
| 1909 // table search | |
| 1910 __ bind(loop); | |
| 1911 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * wordSize)); | |
| 1912 __ jccb(Assembler::equal, found); | |
| 1913 __ bind(loop_entry); | |
| 304 | 1914 __ decrementl(rcx); |
| 0 | 1915 __ jcc(Assembler::greaterEqual, loop); |
| 1916 // default case | |
| 1917 __ profile_switch_default(rax); | |
| 1918 __ movl(rdx, Address(rbx, 0)); | |
| 1919 __ jmpb(continue_execution); | |
| 1920 // entry found -> get offset | |
| 1921 __ bind(found); | |
| 1922 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * wordSize)); | |
| 1923 __ profile_switch_case(rcx, rax, rbx); | |
| 1924 // continue execution | |
| 1925 __ bind(continue_execution); | |
| 304 | 1926 __ bswapl(rdx); |
| 0 | 1927 __ load_unsigned_byte(rbx, Address(rsi, rdx, Address::times_1)); |
| 304 | 1928 __ addptr(rsi, rdx); |
| 0 | 1929 __ dispatch_only(vtos); |
| 1930 } | |
| 1931 | |
| 1932 | |
| 1933 void TemplateTable::fast_binaryswitch() { | |
| 1934 transition(itos, vtos); | |
| 1935 // Implementation using the following core algorithm: | |
| 1936 // | |
| 1937 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1938 // // Binary search according to "Methodik des Programmierens" by | |
| 1939 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1940 // int i = 0; | |
| 1941 // int j = n; | |
| 1942 // while (i+1 < j) { | |
| 1943 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1944 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1945 // // where a stands for the array and assuming that the (inexisting) | |
| 1946 // // element a[n] is infinitely big. | |
| 1947 // int h = (i + j) >> 1; | |
| 1948 // // i < h < j | |
| 1949 // if (key < array[h].fast_match()) { | |
| 1950 // j = h; | |
| 1951 // } else { | |
| 1952 // i = h; | |
| 1953 // } | |
| 1954 // } | |
| 1955 // // R: a[i] <= key < a[i+1] or Q | |
| 1956 // // (i.e., if key is within array, i is the correct index) | |
| 1957 // return i; | |
| 1958 // } | |
| 1959 | |
| 1960 // register allocation | |
| 1961 const Register key = rax; // already set (tosca) | |
| 1962 const Register array = rbx; | |
| 1963 const Register i = rcx; | |
| 1964 const Register j = rdx; | |
| 1965 const Register h = rdi; // needs to be restored | |
| 1966 const Register temp = rsi; | |
| 1967 // setup array | |
| 1968 __ save_bcp(); | |
| 1969 | |
| 304 | 1970 __ lea(array, at_bcp(3*wordSize)); // btw: should be able to get rid of this instruction (change offsets below) |
| 1971 __ andptr(array, -wordSize); | |
| 0 | 1972 // initialize i & j |
| 1973 __ xorl(i, i); // i = 0; | |
| 1974 __ movl(j, Address(array, -wordSize)); // j = length(array); | |
| 1975 // Convert j into native byteordering | |
| 304 | 1976 __ bswapl(j); |
| 0 | 1977 // and start |
| 1978 Label entry; | |
| 1979 __ jmp(entry); | |
| 1980 | |
| 1981 // binary search loop | |
| 1982 { Label loop; | |
| 1983 __ bind(loop); | |
| 1984 // int h = (i + j) >> 1; | |
| 1985 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
| 1986 __ sarl(h, 1); // h = (i + j) >> 1; | |
| 1987 // if (key < array[h].fast_match()) { | |
| 1988 // j = h; | |
| 1989 // } else { | |
| 1990 // i = h; | |
| 1991 // } | |
| 1992 // Convert array[h].match to native byte-ordering before compare | |
| 1993 __ movl(temp, Address(array, h, Address::times_8, 0*wordSize)); | |
| 304 | 1994 __ bswapl(temp); |
| 0 | 1995 __ cmpl(key, temp); |
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1996 // j = h if (key < array[h].fast_match()) |
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1997 __ cmov32(Assembler::less , j, h); |
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1998 // i = h if (key >= array[h].fast_match()) |
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1999 __ cmov32(Assembler::greaterEqual, i, h); |
| 0 | 2000 // while (i+1 < j) |
| 2001 __ bind(entry); | |
| 2002 __ leal(h, Address(i, 1)); // i+1 | |
| 2003 __ cmpl(h, j); // i+1 < j | |
| 2004 __ jcc(Assembler::less, loop); | |
| 2005 } | |
| 2006 | |
| 2007 // end of binary search, result index is i (must check again!) | |
| 2008 Label default_case; | |
| 2009 // Convert array[i].match to native byte-ordering before compare | |
| 2010 __ movl(temp, Address(array, i, Address::times_8, 0*wordSize)); | |
| 304 | 2011 __ bswapl(temp); |
| 0 | 2012 __ cmpl(key, temp); |
| 2013 __ jcc(Assembler::notEqual, default_case); | |
| 2014 | |
| 2015 // entry found -> j = offset | |
| 2016 __ movl(j , Address(array, i, Address::times_8, 1*wordSize)); | |
| 2017 __ profile_switch_case(i, key, array); | |
| 304 | 2018 __ bswapl(j); |
| 2019 LP64_ONLY(__ movslq(j, j)); | |
| 0 | 2020 __ restore_bcp(); |
| 2021 __ restore_locals(); // restore rdi | |
| 2022 __ load_unsigned_byte(rbx, Address(rsi, j, Address::times_1)); | |
| 2023 | |
| 304 | 2024 __ addptr(rsi, j); |
| 0 | 2025 __ dispatch_only(vtos); |
| 2026 | |
| 2027 // default case -> j = default offset | |
| 2028 __ bind(default_case); | |
| 2029 __ profile_switch_default(i); | |
| 2030 __ movl(j, Address(array, -2*wordSize)); | |
| 304 | 2031 __ bswapl(j); |
| 2032 LP64_ONLY(__ movslq(j, j)); | |
| 0 | 2033 __ restore_bcp(); |
| 2034 __ restore_locals(); // restore rdi | |
| 2035 __ load_unsigned_byte(rbx, Address(rsi, j, Address::times_1)); | |
| 304 | 2036 __ addptr(rsi, j); |
| 0 | 2037 __ dispatch_only(vtos); |
| 2038 } | |
| 2039 | |
| 2040 | |
| 2041 void TemplateTable::_return(TosState state) { | |
| 2042 transition(state, state); | |
| 2043 assert(_desc->calls_vm(), "inconsistent calls_vm information"); // call in remove_activation | |
| 2044 | |
| 2045 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2046 assert(state == vtos, "only valid state"); | |
| 304 | 2047 __ movptr(rax, aaddress(0)); |
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2048 __ load_klass(rdi, rax); |
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2049 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
| 0 | 2050 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
| 2051 Label skip_register_finalizer; | |
| 2052 __ jcc(Assembler::zero, skip_register_finalizer); | |
| 2053 | |
| 2054 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), rax); | |
| 2055 | |
| 2056 __ bind(skip_register_finalizer); | |
| 2057 } | |
| 2058 | |
| 23614 | 2059 // Narrow result if state is itos but result type is smaller. |
| 2060 // Need to narrow in the return bytecode rather than in generate_return_entry | |
| 2061 // since compiled code callers expect the result to already be narrowed. | |
| 2062 if (state == itos) { | |
| 2063 __ narrow(rax); | |
| 2064 } | |
| 0 | 2065 __ remove_activation(state, rsi); |
| 23614 | 2066 |
| 0 | 2067 __ jmp(rsi); |
| 2068 } | |
| 2069 | |
| 2070 | |
| 2071 // ---------------------------------------------------------------------------- | |
| 2072 // Volatile variables demand their effects be made known to all CPU's in | |
| 2073 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 2074 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 2075 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 2076 // reorder volatile references, the hardware also must not reorder them). | |
| 2077 // | |
| 2078 // According to the new Java Memory Model (JMM): | |
| 2079 // (1) All volatiles are serialized wrt to each other. | |
| 2080 // ALSO reads & writes act as aquire & release, so: | |
| 2081 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 2082 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 2083 // that happen before the volatile read to float down below it. | |
| 2084 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 2085 // that happen BEFORE the write float down to after the write. It's OK for | |
| 2086 // non-volatile memory refs that happen after the volatile write to float up | |
| 2087 // before it. | |
| 2088 // | |
| 2089 // We only put in barriers around volatile refs (they are expensive), not | |
| 2090 // _between_ memory refs (that would require us to track the flavor of the | |
| 2091 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 2092 // before volatile stores and after volatile loads. These nearly cover | |
| 2093 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 2094 // case is placed after volatile-stores although it could just as well go | |
| 2095 // before volatile-loads. | |
| 304 | 2096 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint ) { |
| 0 | 2097 // Helper function to insert a is-volatile test and memory barrier |
| 2098 if( !os::is_MP() ) return; // Not needed on single CPU | |
| 304 | 2099 __ membar(order_constraint); |
| 0 | 2100 } |
| 2101 | |
| 1565 | 2102 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2103 Register Rcache, | |
| 2104 Register index, | |
| 2105 size_t index_size) { | |
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2106 const Register temp = rbx; |
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2107 assert_different_registers(Rcache, index, temp); |
| 1565 | 2108 |
| 0 | 2109 Label resolved; |
| 1565 | 2110 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2111 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2112 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
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2113 __ jcc(Assembler::equal, resolved); |
| 0 | 2114 |
| 2115 // resolve first time through | |
| 2116 address entry; | |
| 2117 switch (bytecode()) { | |
| 2118 case Bytecodes::_getstatic : // fall through | |
| 2119 case Bytecodes::_putstatic : // fall through | |
| 2120 case Bytecodes::_getfield : // fall through | |
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2121 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; |
| 0 | 2122 case Bytecodes::_invokevirtual : // fall through |
| 2123 case Bytecodes::_invokespecial : // fall through | |
| 2124 case Bytecodes::_invokestatic : // fall through | |
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2125 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; |
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2126 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
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2127 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2128 default: |
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2129 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2130 break; |
| 0 | 2131 } |
| 2132 __ movl(temp, (int)bytecode()); | |
| 2133 __ call_VM(noreg, entry, temp); | |
| 2134 // Update registers with resolved info | |
| 1565 | 2135 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2136 __ bind(resolved); |
| 2137 } | |
| 2138 | |
| 2139 | |
| 2140 // The cache and index registers must be set before call | |
| 2141 void TemplateTable::load_field_cp_cache_entry(Register obj, | |
| 2142 Register cache, | |
| 2143 Register index, | |
| 2144 Register off, | |
| 2145 Register flags, | |
| 2146 bool is_static = false) { | |
| 2147 assert_different_registers(cache, index, flags, off); | |
| 2148 | |
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2149 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2150 // Field offset |
| 304 | 2151 __ movptr(off, Address(cache, index, Address::times_ptr, |
| 2152 in_bytes(cp_base_offset + ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2153 // Flags |
| 304 | 2154 __ movl(flags, Address(cache, index, Address::times_ptr, |
| 0 | 2155 in_bytes(cp_base_offset + ConstantPoolCacheEntry::flags_offset()))); |
| 2156 | |
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2157 // klass overwrite register |
| 0 | 2158 if (is_static) { |
| 304 | 2159 __ movptr(obj, Address(cache, index, Address::times_ptr, |
| 2160 in_bytes(cp_base_offset + ConstantPoolCacheEntry::f1_offset()))); | |
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2161 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2162 __ movptr(obj, Address(obj, mirror_offset)); |
| 0 | 2163 } |
| 2164 } | |
| 2165 | |
| 2166 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2167 Register method, | |
| 2168 Register itable_index, | |
| 2169 Register flags, | |
| 2170 bool is_invokevirtual, | |
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2171 bool is_invokevfinal, /*unused*/ |
| 1565 | 2172 bool is_invokedynamic) { |
| 0 | 2173 // setup registers |
| 2174 const Register cache = rcx; | |
| 2175 const Register index = rdx; | |
| 2176 assert_different_registers(method, flags); | |
| 2177 assert_different_registers(method, cache, index); | |
| 2178 assert_different_registers(itable_index, flags); | |
| 2179 assert_different_registers(itable_index, cache, index); | |
| 2180 // determine constant pool cache field offsets | |
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2181 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2182 const int method_offset = in_bytes( |
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2183 ConstantPoolCache::base_offset() + |
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2184 ((byte_no == f2_byte) |
| 0 | 2185 ? ConstantPoolCacheEntry::f2_offset() |
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2186 : ConstantPoolCacheEntry::f1_offset())); |
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2187 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2188 ConstantPoolCacheEntry::flags_offset()); |
| 2189 // access constant pool cache fields | |
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2190 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2191 ConstantPoolCacheEntry::f2_offset()); |
| 2192 | |
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2193 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2194 resolve_cache_and_index(byte_no, cache, index, index_size); |
| 1565 | 2195 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2196 |
| 0 | 2197 if (itable_index != noreg) { |
| 304 | 2198 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
| 0 | 2199 } |
| 1565 | 2200 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
| 0 | 2201 } |
| 2202 | |
| 2203 | |
| 2204 // The registers cache and index expected to be set before call. | |
| 2205 // Correct values of the cache and index registers are preserved. | |
| 2206 void TemplateTable::jvmti_post_field_access(Register cache, | |
| 2207 Register index, | |
| 2208 bool is_static, | |
| 2209 bool has_tos) { | |
| 2210 if (JvmtiExport::can_post_field_access()) { | |
| 2211 // Check to see if a field access watch has been set before we take | |
| 2212 // the time to call into the VM. | |
| 2213 Label L1; | |
| 2214 assert_different_registers(cache, index, rax); | |
| 2215 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2216 __ testl(rax,rax); | |
| 2217 __ jcc(Assembler::zero, L1); | |
| 2218 | |
| 2219 // cache entry pointer | |
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2220 __ addptr(cache, in_bytes(ConstantPoolCache::base_offset())); |
| 0 | 2221 __ shll(index, LogBytesPerWord); |
| 304 | 2222 __ addptr(cache, index); |
| 0 | 2223 if (is_static) { |
| 304 | 2224 __ xorptr(rax, rax); // NULL object reference |
| 0 | 2225 } else { |
| 2226 __ pop(atos); // Get the object | |
| 2227 __ verify_oop(rax); | |
| 2228 __ push(atos); // Restore stack state | |
| 2229 } | |
| 2230 // rax,: object pointer or NULL | |
| 2231 // cache: cache entry pointer | |
| 2232 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2233 rax, cache); | |
| 2234 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2235 __ bind(L1); | |
| 2236 } | |
| 2237 } | |
| 2238 | |
| 2239 void TemplateTable::pop_and_check_object(Register r) { | |
| 2240 __ pop_ptr(r); | |
| 2241 __ null_check(r); // for field access must check obj. | |
| 2242 __ verify_oop(r); | |
| 2243 } | |
| 2244 | |
| 2245 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2246 transition(vtos, vtos); | |
| 2247 | |
| 2248 const Register cache = rcx; | |
| 2249 const Register index = rdx; | |
| 2250 const Register obj = rcx; | |
| 2251 const Register off = rbx; | |
| 2252 const Register flags = rax; | |
| 2253 | |
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2254 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2255 jvmti_post_field_access(cache, index, is_static, false); |
| 2256 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2257 | |
| 2258 if (!is_static) pop_and_check_object(obj); | |
| 2259 | |
| 2260 const Address lo(obj, off, Address::times_1, 0*wordSize); | |
| 2261 const Address hi(obj, off, Address::times_1, 1*wordSize); | |
| 2262 | |
| 23614 | 2263 Label Done, notByte, notBool, notInt, notShort, notChar, notLong, notFloat, notObj, notDouble; |
| 0 | 2264 |
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2265 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2266 assert(btos == 0, "change code, btos != 0"); |
| 2267 // btos | |
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2268 __ andptr(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2269 __ jcc(Assembler::notZero, notByte); |
| 2270 | |
| 2271 __ load_signed_byte(rax, lo ); | |
| 2272 __ push(btos); | |
| 2273 // Rewrite bytecode to be faster | |
| 2274 if (!is_static) { | |
| 2275 patch_bytecode(Bytecodes::_fast_bgetfield, rcx, rbx); | |
| 2276 } | |
| 2277 __ jmp(Done); | |
| 2278 | |
| 2279 __ bind(notByte); | |
| 23614 | 2280 |
| 2281 __ cmpl(flags, ztos); | |
| 2282 __ jcc(Assembler::notEqual, notBool); | |
| 2283 | |
| 2284 // ztos (same code as btos) | |
| 2285 __ load_signed_byte(rax, lo); | |
| 2286 __ push(ztos); | |
| 2287 // Rewrite bytecode to be faster | |
| 2288 if (!is_static) { | |
| 2289 // use btos rewriting, no truncating to t/f bit is needed for getfield. | |
| 2290 patch_bytecode(Bytecodes::_fast_bgetfield, rcx, rbx); | |
| 2291 } | |
| 2292 __ jmp(Done); | |
| 2293 | |
| 2294 __ bind(notBool); | |
| 2295 | |
| 0 | 2296 // itos |
| 2297 __ cmpl(flags, itos ); | |
| 2298 __ jcc(Assembler::notEqual, notInt); | |
| 2299 | |
| 2300 __ movl(rax, lo ); | |
| 2301 __ push(itos); | |
| 2302 // Rewrite bytecode to be faster | |
| 2303 if (!is_static) { | |
| 2304 patch_bytecode(Bytecodes::_fast_igetfield, rcx, rbx); | |
| 2305 } | |
| 2306 __ jmp(Done); | |
| 2307 | |
| 2308 __ bind(notInt); | |
| 2309 // atos | |
| 2310 __ cmpl(flags, atos ); | |
| 2311 __ jcc(Assembler::notEqual, notObj); | |
| 2312 | |
| 2313 __ movl(rax, lo ); | |
| 2314 __ push(atos); | |
| 2315 if (!is_static) { | |
| 2316 patch_bytecode(Bytecodes::_fast_agetfield, rcx, rbx); | |
| 2317 } | |
| 2318 __ jmp(Done); | |
| 2319 | |
| 2320 __ bind(notObj); | |
| 2321 // ctos | |
| 2322 __ cmpl(flags, ctos ); | |
| 2323 __ jcc(Assembler::notEqual, notChar); | |
| 2324 | |
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2325 __ load_unsigned_short(rax, lo ); |
| 0 | 2326 __ push(ctos); |
| 2327 if (!is_static) { | |
| 2328 patch_bytecode(Bytecodes::_fast_cgetfield, rcx, rbx); | |
| 2329 } | |
| 2330 __ jmp(Done); | |
| 2331 | |
| 2332 __ bind(notChar); | |
| 2333 // stos | |
| 2334 __ cmpl(flags, stos ); | |
| 2335 __ jcc(Assembler::notEqual, notShort); | |
| 2336 | |
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2337 __ load_signed_short(rax, lo ); |
| 0 | 2338 __ push(stos); |
| 2339 if (!is_static) { | |
| 2340 patch_bytecode(Bytecodes::_fast_sgetfield, rcx, rbx); | |
| 2341 } | |
| 2342 __ jmp(Done); | |
| 2343 | |
| 2344 __ bind(notShort); | |
| 2345 // ltos | |
| 2346 __ cmpl(flags, ltos ); | |
| 2347 __ jcc(Assembler::notEqual, notLong); | |
| 2348 | |
| 2349 // Generate code as if volatile. There just aren't enough registers to | |
| 2350 // save that information and this code is faster than the test. | |
| 2351 __ fild_d(lo); // Must load atomically | |
| 304 | 2352 __ subptr(rsp,2*wordSize); // Make space for store |
| 0 | 2353 __ fistp_d(Address(rsp,0)); |
| 304 | 2354 __ pop(rax); |
| 2355 __ pop(rdx); | |
| 0 | 2356 |
| 2357 __ push(ltos); | |
| 2358 // Don't rewrite to _fast_lgetfield for potential volatile case. | |
| 2359 __ jmp(Done); | |
| 2360 | |
| 2361 __ bind(notLong); | |
| 2362 // ftos | |
| 2363 __ cmpl(flags, ftos ); | |
| 2364 __ jcc(Assembler::notEqual, notFloat); | |
| 2365 | |
| 2366 __ fld_s(lo); | |
| 2367 __ push(ftos); | |
| 2368 if (!is_static) { | |
| 2369 patch_bytecode(Bytecodes::_fast_fgetfield, rcx, rbx); | |
| 2370 } | |
| 2371 __ jmp(Done); | |
| 2372 | |
| 2373 __ bind(notFloat); | |
| 2374 // dtos | |
| 2375 __ cmpl(flags, dtos ); | |
| 2376 __ jcc(Assembler::notEqual, notDouble); | |
| 2377 | |
| 2378 __ fld_d(lo); | |
| 2379 __ push(dtos); | |
| 2380 if (!is_static) { | |
| 2381 patch_bytecode(Bytecodes::_fast_dgetfield, rcx, rbx); | |
| 2382 } | |
| 2383 __ jmpb(Done); | |
| 2384 | |
| 2385 __ bind(notDouble); | |
| 2386 | |
| 2387 __ stop("Bad state"); | |
| 2388 | |
| 2389 __ bind(Done); | |
| 2390 // Doug Lea believes this is not needed with current Sparcs (TSO) and Intel (PSO). | |
| 2391 // volatile_barrier( ); | |
| 2392 } | |
| 2393 | |
| 2394 | |
| 2395 void TemplateTable::getfield(int byte_no) { | |
| 2396 getfield_or_static(byte_no, false); | |
| 2397 } | |
| 2398 | |
| 2399 | |
| 2400 void TemplateTable::getstatic(int byte_no) { | |
| 2401 getfield_or_static(byte_no, true); | |
| 2402 } | |
| 2403 | |
| 2404 // The registers cache and index expected to be set before call. | |
| 2405 // The function may destroy various registers, just not the cache and index registers. | |
| 2406 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
| 2407 | |
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2408 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2409 |
| 2410 if (JvmtiExport::can_post_field_modification()) { | |
| 2411 // Check to see if a field modification watch has been set before we take | |
| 2412 // the time to call into the VM. | |
| 2413 Label L1; | |
| 2414 assert_different_registers(cache, index, rax); | |
| 2415 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2416 __ testl(rax, rax); | |
| 2417 __ jcc(Assembler::zero, L1); | |
| 2418 | |
| 2419 // The cache and index registers have been already set. | |
| 2420 // This allows to eliminate this call but the cache and index | |
| 2421 // registers have to be correspondingly used after this line. | |
| 2422 __ get_cache_and_index_at_bcp(rax, rdx, 1); | |
| 2423 | |
| 2424 if (is_static) { | |
| 2425 // Life is simple. Null out the object pointer. | |
| 304 | 2426 __ xorptr(rbx, rbx); |
| 0 | 2427 } else { |
| 2428 // Life is harder. The stack holds the value on top, followed by the object. | |
| 2429 // We don't know the size of the value, though; it could be one or two words | |
| 2430 // depending on its type. As a result, we must find the type to determine where | |
| 2431 // the object is. | |
| 2432 Label two_word, valsize_known; | |
| 304 | 2433 __ movl(rcx, Address(rax, rdx, Address::times_ptr, in_bytes(cp_base_offset + |
| 0 | 2434 ConstantPoolCacheEntry::flags_offset()))); |
| 304 | 2435 __ mov(rbx, rsp); |
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2436 __ shrl(rcx, ConstantPoolCacheEntry::tos_state_shift); |
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2437 // Make sure we don't need to mask rcx after the above shift |
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2438 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2439 __ cmpl(rcx, ltos); |
| 2440 __ jccb(Assembler::equal, two_word); | |
| 2441 __ cmpl(rcx, dtos); | |
| 2442 __ jccb(Assembler::equal, two_word); | |
| 304 | 2443 __ addptr(rbx, Interpreter::expr_offset_in_bytes(1)); // one word jvalue (not ltos, dtos) |
| 0 | 2444 __ jmpb(valsize_known); |
| 2445 | |
| 2446 __ bind(two_word); | |
| 304 | 2447 __ addptr(rbx, Interpreter::expr_offset_in_bytes(2)); // two words jvalue |
| 0 | 2448 |
| 2449 __ bind(valsize_known); | |
| 2450 // setup object pointer | |
| 304 | 2451 __ movptr(rbx, Address(rbx, 0)); |
| 0 | 2452 } |
| 2453 // cache entry pointer | |
| 304 | 2454 __ addptr(rax, in_bytes(cp_base_offset)); |
| 0 | 2455 __ shll(rdx, LogBytesPerWord); |
| 304 | 2456 __ addptr(rax, rdx); |
| 0 | 2457 // object (tos) |
| 304 | 2458 __ mov(rcx, rsp); |
| 0 | 2459 // rbx,: object pointer set up above (NULL if static) |
| 2460 // rax,: cache entry pointer | |
| 2461 // rcx: jvalue object on the stack | |
| 2462 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2463 rbx, rax, rcx); | |
| 2464 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2465 __ bind(L1); | |
| 2466 } | |
| 2467 } | |
| 2468 | |
| 2469 | |
| 2470 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2471 transition(vtos, vtos); | |
| 2472 | |
| 2473 const Register cache = rcx; | |
| 2474 const Register index = rdx; | |
| 2475 const Register obj = rcx; | |
| 2476 const Register off = rbx; | |
| 2477 const Register flags = rax; | |
| 2478 | |
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2479 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2480 jvmti_post_field_mod(cache, index, is_static); |
| 2481 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2482 | |
| 2483 // Doug Lea believes this is not needed with current Sparcs (TSO) and Intel (PSO). | |
| 2484 // volatile_barrier( ); | |
| 2485 | |
| 2486 Label notVolatile, Done; | |
| 2487 __ movl(rdx, flags); | |
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2488 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2489 __ andl(rdx, 0x1); |
| 2490 | |
| 2491 // field addresses | |
| 2492 const Address lo(obj, off, Address::times_1, 0*wordSize); | |
| 2493 const Address hi(obj, off, Address::times_1, 1*wordSize); | |
| 2494 | |
| 23614 | 2495 Label notByte, notBool, notInt, notShort, notChar, notLong, notFloat, notObj, notDouble; |
| 0 | 2496 |
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2497 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2498 assert(btos == 0, "change code, btos != 0"); |
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2499 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2500 __ jcc(Assembler::notZero, notByte); |
| 2501 | |
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2502 // btos |
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2503 { |
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2504 __ pop(btos); |
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2505 if (!is_static) pop_and_check_object(obj); |
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2506 __ movb(lo, rax); |
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2507 if (!is_static) { |
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2508 patch_bytecode(Bytecodes::_fast_bputfield, rcx, rbx, true, byte_no); |
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2509 } |
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2510 __ jmp(Done); |
| 0 | 2511 } |
| 2512 | |
| 2513 __ bind(notByte); | |
| 23614 | 2514 __ cmpl(flags, ztos); |
| 2515 __ jcc(Assembler::notEqual, notBool); | |
| 2516 | |
| 2517 // ztos | |
| 2518 { | |
| 2519 __ pop(ztos); | |
| 2520 if (!is_static) pop_and_check_object(obj); | |
| 2521 __ andl(rax, 0x1); | |
| 2522 __ movb(lo, rax); | |
| 2523 if (!is_static) { | |
| 2524 patch_bytecode(Bytecodes::_fast_zputfield, rcx, rbx, true, byte_no); | |
| 2525 } | |
| 2526 __ jmp(Done); | |
| 2527 } | |
| 2528 | |
| 2529 __ bind(notBool); | |
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2530 __ cmpl(flags, itos); |
| 0 | 2531 __ jcc(Assembler::notEqual, notInt); |
| 2532 | |
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2533 // itos |
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2534 { |
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2535 __ pop(itos); |
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2536 if (!is_static) pop_and_check_object(obj); |
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2537 __ movl(lo, rax); |
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2538 if (!is_static) { |
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2539 patch_bytecode(Bytecodes::_fast_iputfield, rcx, rbx, true, byte_no); |
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2540 } |
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2541 __ jmp(Done); |
| 0 | 2542 } |
| 2543 | |
| 2544 __ bind(notInt); | |
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2545 __ cmpl(flags, atos); |
| 0 | 2546 __ jcc(Assembler::notEqual, notObj); |
| 2547 | |
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|
2548 // atos |
|
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|
2549 { |
|
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|
2550 __ pop(atos); |
|
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|
2551 if (!is_static) pop_and_check_object(obj); |
|
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|
2552 do_oop_store(_masm, lo, rax, _bs->kind(), false); |
|
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2553 if (!is_static) { |
|
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2554 patch_bytecode(Bytecodes::_fast_aputfield, rcx, rbx, true, byte_no); |
|
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|
2555 } |
|
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|
2556 __ jmp(Done); |
| 0 | 2557 } |
|
342
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2558 |
| 0 | 2559 __ bind(notObj); |
|
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|
2560 __ cmpl(flags, ctos); |
| 0 | 2561 __ jcc(Assembler::notEqual, notChar); |
| 2562 | |
|
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2563 // ctos |
|
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|
2564 { |
|
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|
2565 __ pop(ctos); |
|
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|
2566 if (!is_static) pop_and_check_object(obj); |
|
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|
2567 __ movw(lo, rax); |
|
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|
2568 if (!is_static) { |
|
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2569 patch_bytecode(Bytecodes::_fast_cputfield, rcx, rbx, true, byte_no); |
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2570 } |
|
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2571 __ jmp(Done); |
| 0 | 2572 } |
| 2573 | |
| 2574 __ bind(notChar); | |
|
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2575 __ cmpl(flags, stos); |
| 0 | 2576 __ jcc(Assembler::notEqual, notShort); |
| 2577 | |
|
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2578 // stos |
|
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2579 { |
|
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|
2580 __ pop(stos); |
|
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|
2581 if (!is_static) pop_and_check_object(obj); |
|
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2582 __ movw(lo, rax); |
|
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2583 if (!is_static) { |
|
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2584 patch_bytecode(Bytecodes::_fast_sputfield, rcx, rbx, true, byte_no); |
|
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2585 } |
|
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|
2586 __ jmp(Done); |
| 0 | 2587 } |
| 2588 | |
| 2589 __ bind(notShort); | |
|
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2590 __ cmpl(flags, ltos); |
| 0 | 2591 __ jcc(Assembler::notEqual, notLong); |
| 2592 | |
|
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|
2593 // ltos |
|
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|
2594 { |
|
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|
2595 Label notVolatileLong; |
|
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|
2596 __ testl(rdx, rdx); |
|
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|
2597 __ jcc(Assembler::zero, notVolatileLong); |
|
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2598 |
|
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2599 __ pop(ltos); // overwrites rdx, do this after testing volatile. |
|
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|
2600 if (!is_static) pop_and_check_object(obj); |
|
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|
2601 |
|
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2602 // Replace with real volatile test |
|
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2603 __ push(rdx); |
|
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2604 __ push(rax); // Must update atomically with FIST |
|
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2605 __ fild_d(Address(rsp,0)); // So load into FPU register |
|
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2606 __ fistp_d(lo); // and put into memory atomically |
|
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2607 __ addptr(rsp, 2*wordSize); |
|
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|
2608 // volatile_barrier(); |
|
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2609 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | |
|
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2610 Assembler::StoreStore)); |
|
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2611 // Don't rewrite volatile version |
|
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2612 __ jmp(notVolatile); |
|
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2613 |
|
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2614 __ bind(notVolatileLong); |
|
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2615 |
|
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2616 __ pop(ltos); // overwrites rdx |
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2617 if (!is_static) pop_and_check_object(obj); |
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2618 NOT_LP64(__ movptr(hi, rdx)); |
|
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2619 __ movptr(lo, rax); |
|
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2620 if (!is_static) { |
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2621 patch_bytecode(Bytecodes::_fast_lputfield, rcx, rbx, true, byte_no); |
|
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2622 } |
|
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2623 __ jmp(notVolatile); |
| 0 | 2624 } |
| 2625 | |
| 2626 __ bind(notLong); | |
|
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2627 __ cmpl(flags, ftos); |
| 0 | 2628 __ jcc(Assembler::notEqual, notFloat); |
| 2629 | |
|
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|
2630 // ftos |
|
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2631 { |
|
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2632 __ pop(ftos); |
|
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2633 if (!is_static) pop_and_check_object(obj); |
|
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|
2634 __ fstp_s(lo); |
|
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|
2635 if (!is_static) { |
|
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|
2636 patch_bytecode(Bytecodes::_fast_fputfield, rcx, rbx, true, byte_no); |
|
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2637 } |
|
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|
2638 __ jmp(Done); |
| 0 | 2639 } |
| 2640 | |
| 2641 __ bind(notFloat); | |
|
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2642 #ifdef ASSERT |
|
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2643 __ cmpl(flags, dtos); |
| 0 | 2644 __ jcc(Assembler::notEqual, notDouble); |
|
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|
2645 #endif |
|
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2646 |
|
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|
2647 // dtos |
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|
2648 { |
|
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|
2649 __ pop(dtos); |
|
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|
2650 if (!is_static) pop_and_check_object(obj); |
|
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|
2651 __ fstp_d(lo); |
|
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|
2652 if (!is_static) { |
|
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|
2653 patch_bytecode(Bytecodes::_fast_dputfield, rcx, rbx, true, byte_no); |
|
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|
2654 } |
|
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|
2655 __ jmp(Done); |
| 0 | 2656 } |
|
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2657 |
|
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|
2658 #ifdef ASSERT |
| 0 | 2659 __ bind(notDouble); |
| 2660 __ stop("Bad state"); | |
|
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|
2661 #endif |
| 0 | 2662 |
| 2663 __ bind(Done); | |
| 2664 | |
| 2665 // Check for volatile store | |
| 2666 __ testl(rdx, rdx); | |
| 2667 __ jcc(Assembler::zero, notVolatile); | |
| 304 | 2668 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | |
| 2669 Assembler::StoreStore)); | |
| 0 | 2670 __ bind(notVolatile); |
| 2671 } | |
| 2672 | |
| 2673 | |
| 2674 void TemplateTable::putfield(int byte_no) { | |
| 2675 putfield_or_static(byte_no, false); | |
| 2676 } | |
| 2677 | |
| 2678 | |
| 2679 void TemplateTable::putstatic(int byte_no) { | |
| 2680 putfield_or_static(byte_no, true); | |
| 2681 } | |
| 2682 | |
| 2683 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2684 if (JvmtiExport::can_post_field_modification()) { | |
| 2685 // Check to see if a field modification watch has been set before we take | |
| 2686 // the time to call into the VM. | |
| 2687 Label L2; | |
|
5995
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|
2688 __ mov32(rcx, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); |
|
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2689 __ testl(rcx,rcx); |
|
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|
2690 __ jcc(Assembler::zero, L2); |
|
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|
2691 __ pop_ptr(rbx); // copy the object pointer from tos |
|
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|
2692 __ verify_oop(rbx); |
|
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|
2693 __ push_ptr(rbx); // put the object pointer back on tos |
|
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|
2694 |
|
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|
2695 // Save tos values before call_VM() clobbers them. Since we have |
|
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|
2696 // to do it for every data type, we use the saved values as the |
|
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|
2697 // jvalue object. |
|
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|
2698 switch (bytecode()) { // load values into the jvalue object |
|
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|
2699 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
|
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|
2700 case Bytecodes::_fast_bputfield: // fall through |
| 23614 | 2701 case Bytecodes::_fast_zputfield: // fall through |
|
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|
2702 case Bytecodes::_fast_sputfield: // fall through |
|
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|
2703 case Bytecodes::_fast_cputfield: // fall through |
|
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|
2704 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
|
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|
2705 case Bytecodes::_fast_dputfield: __ push_d(); break; |
|
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|
2706 case Bytecodes::_fast_fputfield: __ push_f(); break; |
|
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|
2707 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
|
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2708 |
|
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2709 default: |
|
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2710 ShouldNotReachHere(); |
|
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2711 } |
|
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2712 __ mov(rcx, rsp); // points to jvalue on the stack |
|
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2713 // access constant pool cache entry |
|
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2714 __ get_cache_entry_pointer_at_bcp(rax, rdx, 1); |
|
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2715 __ verify_oop(rbx); |
|
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2716 // rbx,: object pointer copied above |
|
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2717 // rax,: cache entry pointer |
|
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2718 // rcx: jvalue object on the stack |
|
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2719 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), rbx, rax, rcx); |
|
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2720 |
|
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2721 switch (bytecode()) { // restore tos values |
|
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2722 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
|
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2723 case Bytecodes::_fast_bputfield: // fall through |
| 23614 | 2724 case Bytecodes::_fast_zputfield: // fall through |
|
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2725 case Bytecodes::_fast_sputfield: // fall through |
|
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2726 case Bytecodes::_fast_cputfield: // fall through |
|
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2727 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
|
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2728 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
|
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2729 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
|
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2730 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
|
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|
2731 } |
|
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|
2732 __ bind(L2); |
| 0 | 2733 } |
| 2734 } | |
| 2735 | |
| 2736 void TemplateTable::fast_storefield(TosState state) { | |
| 2737 transition(state, vtos); | |
| 2738 | |
|
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2739 ByteSize base = ConstantPoolCache::base_offset(); |
| 0 | 2740 |
| 2741 jvmti_post_fast_field_mod(); | |
| 2742 | |
| 2743 // access constant pool cache | |
| 2744 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2745 | |
| 2746 // test for volatile with rdx but rdx is tos register for lputfield. | |
| 304 | 2747 if (bytecode() == Bytecodes::_fast_lputfield) __ push(rdx); |
| 2748 __ movl(rdx, Address(rcx, rbx, Address::times_ptr, in_bytes(base + | |
| 0 | 2749 ConstantPoolCacheEntry::flags_offset()))); |
| 2750 | |
| 2751 // replace index with field offset from cache entry | |
| 304 | 2752 __ movptr(rbx, Address(rcx, rbx, Address::times_ptr, in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2753 |
| 2754 // Doug Lea believes this is not needed with current Sparcs (TSO) and Intel (PSO). | |
| 2755 // volatile_barrier( ); | |
| 2756 | |
| 2757 Label notVolatile, Done; | |
|
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|
2758 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2759 __ andl(rdx, 0x1); |
| 2760 // Check for volatile store | |
| 2761 __ testl(rdx, rdx); | |
| 2762 __ jcc(Assembler::zero, notVolatile); | |
| 2763 | |
| 304 | 2764 if (bytecode() == Bytecodes::_fast_lputfield) __ pop(rdx); |
| 0 | 2765 |
| 2766 // Get object from stack | |
| 2767 pop_and_check_object(rcx); | |
| 2768 | |
| 2769 // field addresses | |
| 2770 const Address lo(rcx, rbx, Address::times_1, 0*wordSize); | |
| 2771 const Address hi(rcx, rbx, Address::times_1, 1*wordSize); | |
| 2772 | |
| 2773 // access field | |
| 2774 switch (bytecode()) { | |
| 23614 | 2775 case Bytecodes::_fast_zputfield: __ andl(rax, 0x1); // boolean is true if LSB is 1 |
| 2776 // fall through to bputfield | |
| 0 | 2777 case Bytecodes::_fast_bputfield: __ movb(lo, rax); break; |
| 2778 case Bytecodes::_fast_sputfield: // fall through | |
| 2779 case Bytecodes::_fast_cputfield: __ movw(lo, rax); break; | |
| 2780 case Bytecodes::_fast_iputfield: __ movl(lo, rax); break; | |
| 304 | 2781 case Bytecodes::_fast_lputfield: |
| 2782 NOT_LP64(__ movptr(hi, rdx)); | |
| 2783 __ movptr(lo, rax); | |
| 2784 break; | |
| 0 | 2785 case Bytecodes::_fast_fputfield: __ fstp_s(lo); break; |
| 2786 case Bytecodes::_fast_dputfield: __ fstp_d(lo); break; | |
|
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2787 case Bytecodes::_fast_aputfield: { |
|
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|
2788 do_oop_store(_masm, lo, rax, _bs->kind(), false); |
|
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|
2789 break; |
|
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|
2790 } |
| 0 | 2791 default: |
| 2792 ShouldNotReachHere(); | |
| 2793 } | |
| 2794 | |
| 2795 Label done; | |
| 304 | 2796 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | |
| 2797 Assembler::StoreStore)); | |
|
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2798 // Barriers are so large that short branch doesn't reach! |
|
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|
2799 __ jmp(done); |
| 0 | 2800 |
| 2801 // Same code as above, but don't need rdx to test for volatile. | |
| 2802 __ bind(notVolatile); | |
| 2803 | |
| 304 | 2804 if (bytecode() == Bytecodes::_fast_lputfield) __ pop(rdx); |
| 0 | 2805 |
| 2806 // Get object from stack | |
| 2807 pop_and_check_object(rcx); | |
| 2808 | |
| 2809 // access field | |
| 2810 switch (bytecode()) { | |
| 23614 | 2811 case Bytecodes::_fast_zputfield: __ andl(rax, 0x1); // boolean is true if LSB is 1 |
| 2812 // fall through to bputfield | |
| 0 | 2813 case Bytecodes::_fast_bputfield: __ movb(lo, rax); break; |
| 2814 case Bytecodes::_fast_sputfield: // fall through | |
| 2815 case Bytecodes::_fast_cputfield: __ movw(lo, rax); break; | |
| 2816 case Bytecodes::_fast_iputfield: __ movl(lo, rax); break; | |
| 304 | 2817 case Bytecodes::_fast_lputfield: |
| 2818 NOT_LP64(__ movptr(hi, rdx)); | |
| 2819 __ movptr(lo, rax); | |
| 2820 break; | |
| 0 | 2821 case Bytecodes::_fast_fputfield: __ fstp_s(lo); break; |
| 2822 case Bytecodes::_fast_dputfield: __ fstp_d(lo); break; | |
|
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2823 case Bytecodes::_fast_aputfield: { |
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|
2824 do_oop_store(_masm, lo, rax, _bs->kind(), false); |
|
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|
2825 break; |
|
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|
2826 } |
| 0 | 2827 default: |
| 2828 ShouldNotReachHere(); | |
| 2829 } | |
| 2830 __ bind(done); | |
| 2831 } | |
| 2832 | |
| 2833 | |
| 2834 void TemplateTable::fast_accessfield(TosState state) { | |
| 2835 transition(atos, state); | |
| 2836 | |
| 2837 // do the JVMTI work here to avoid disturbing the register state below | |
| 2838 if (JvmtiExport::can_post_field_access()) { | |
| 2839 // Check to see if a field access watch has been set before we take | |
| 2840 // the time to call into the VM. | |
| 2841 Label L1; | |
| 2842 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2843 __ testl(rcx,rcx); | |
| 2844 __ jcc(Assembler::zero, L1); | |
| 2845 // access constant pool cache entry | |
| 2846 __ get_cache_entry_pointer_at_bcp(rcx, rdx, 1); | |
| 2847 __ push_ptr(rax); // save object pointer before call_VM() clobbers it | |
| 2848 __ verify_oop(rax); | |
| 2849 // rax,: object pointer copied above | |
| 2850 // rcx: cache entry pointer | |
| 2851 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), rax, rcx); | |
| 2852 __ pop_ptr(rax); // restore object pointer | |
| 2853 __ bind(L1); | |
| 2854 } | |
| 2855 | |
| 2856 // access constant pool cache | |
| 2857 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2858 // replace index with field offset from cache entry | |
| 304 | 2859 __ movptr(rbx, Address(rcx, |
| 2860 rbx, | |
| 2861 Address::times_ptr, | |
|
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2862 in_bytes(ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2863 |
| 2864 | |
| 2865 // rax,: object | |
| 2866 __ verify_oop(rax); | |
| 2867 __ null_check(rax); | |
| 2868 // field addresses | |
| 2869 const Address lo = Address(rax, rbx, Address::times_1, 0*wordSize); | |
| 2870 const Address hi = Address(rax, rbx, Address::times_1, 1*wordSize); | |
| 2871 | |
| 2872 // access field | |
| 2873 switch (bytecode()) { | |
| 304 | 2874 case Bytecodes::_fast_bgetfield: __ movsbl(rax, lo ); break; |
|
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|
2875 case Bytecodes::_fast_sgetfield: __ load_signed_short(rax, lo ); break; |
|
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|
2876 case Bytecodes::_fast_cgetfield: __ load_unsigned_short(rax, lo ); break; |
| 0 | 2877 case Bytecodes::_fast_igetfield: __ movl(rax, lo); break; |
| 2878 case Bytecodes::_fast_lgetfield: __ stop("should not be rewritten"); break; | |
| 2879 case Bytecodes::_fast_fgetfield: __ fld_s(lo); break; | |
| 2880 case Bytecodes::_fast_dgetfield: __ fld_d(lo); break; | |
| 304 | 2881 case Bytecodes::_fast_agetfield: __ movptr(rax, lo); __ verify_oop(rax); break; |
| 0 | 2882 default: |
| 2883 ShouldNotReachHere(); | |
| 2884 } | |
| 2885 | |
| 2886 // Doug Lea believes this is not needed with current Sparcs(TSO) and Intel(PSO) | |
| 2887 // volatile_barrier( ); | |
| 2888 } | |
| 2889 | |
| 2890 void TemplateTable::fast_xaccess(TosState state) { | |
| 2891 transition(vtos, state); | |
| 2892 // get receiver | |
| 304 | 2893 __ movptr(rax, aaddress(0)); |
| 0 | 2894 // access constant pool cache |
| 2895 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
| 304 | 2896 __ movptr(rbx, Address(rcx, |
| 2897 rdx, | |
| 2898 Address::times_ptr, | |
|
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2899 in_bytes(ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2900 // make sure exception is reported in correct bcp range (getfield is next instruction) |
| 2901 __ increment(rsi); | |
| 2902 __ null_check(rax); | |
| 2903 const Address lo = Address(rax, rbx, Address::times_1, 0*wordSize); | |
| 2904 if (state == itos) { | |
| 2905 __ movl(rax, lo); | |
| 2906 } else if (state == atos) { | |
| 304 | 2907 __ movptr(rax, lo); |
| 0 | 2908 __ verify_oop(rax); |
| 2909 } else if (state == ftos) { | |
| 2910 __ fld_s(lo); | |
| 2911 } else { | |
| 2912 ShouldNotReachHere(); | |
| 2913 } | |
| 2914 __ decrement(rsi); | |
| 2915 } | |
| 2916 | |
| 2917 | |
| 2918 | |
| 2919 //---------------------------------------------------------------------------------------------------- | |
| 2920 // Calls | |
| 2921 | |
| 2922 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2923 // implemented elsewhere | |
| 2924 ShouldNotReachHere(); | |
| 2925 } | |
| 2926 | |
| 2927 | |
|
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2928 void TemplateTable::prepare_invoke(int byte_no, |
|
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2929 Register method, // linked method (or i-klass) |
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2930 Register index, // itable index, MethodType, etc. |
|
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2931 Register recv, // if caller wants to see it |
|
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2932 Register flags // if caller wants to test it |
|
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|
2933 ) { |
| 0 | 2934 // determine flags |
|
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2935 const Bytecodes::Code code = bytecode(); |
| 0 | 2936 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
|
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2937 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
|
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|
2938 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
| 0 | 2939 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
| 2940 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
|
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2941 const bool load_receiver = (recv != noreg); |
|
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2942 const bool save_flags = (flags != noreg); |
|
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|
2943 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
|
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2944 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
|
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|
2945 assert(flags == noreg || flags == rdx, ""); |
|
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|
2946 assert(recv == noreg || recv == rcx, ""); |
|
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|
2947 |
| 0 | 2948 // setup registers & access constant pool cache |
|
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|
2949 if (recv == noreg) recv = rcx; |
|
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|
2950 if (flags == noreg) flags = rdx; |
| 0 | 2951 assert_different_registers(method, index, recv, flags); |
| 2952 | |
| 2953 // save 'interpreter return address' | |
| 2954 __ save_bcp(); | |
| 2955 | |
| 1565 | 2956 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
| 0 | 2957 |
|
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|
2958 // maybe push appendix to arguments (just before return address) |
|
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|
2959 if (is_invokedynamic || is_invokehandle) { |
|
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|
2960 Label L_no_push; |
|
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|
2961 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
|
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|
2962 __ jccb(Assembler::zero, L_no_push); |
|
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|
2963 // Push the appendix as a trailing parameter. |
|
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|
2964 // This must be done before we get the receiver, |
|
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|
2965 // since the parameter_size includes it. |
|
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2966 __ push(rbx); |
|
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2967 __ mov(rbx, index); |
|
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|
2968 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2969 __ load_resolved_reference_at_index(index, rbx); |
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2970 __ pop(rbx); |
|
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2971 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2972 __ bind(L_no_push); |
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2973 } |
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2974 |
| 0 | 2975 // load receiver if needed (note: no return address pushed yet) |
| 2976 if (load_receiver) { | |
| 2977 __ movl(recv, flags); | |
|
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2978 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2979 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2980 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2981 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
| 1304 | 2982 __ movptr(recv, recv_addr); |
| 2983 __ verify_oop(recv); | |
| 0 | 2984 } |
| 2985 | |
| 2986 if (save_flags) { | |
| 304 | 2987 __ mov(rsi, flags); |
| 0 | 2988 } |
| 2989 | |
| 2990 // compute return type | |
|
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2991 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2992 // Make sure we don't need to mask flags after the above shift |
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2993 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2994 // load return address |
| 304 | 2995 { |
|
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2996 const address table_addr = (address) Interpreter::invoke_return_entry_table_for(code); |
|
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2997 ExternalAddress table(table_addr); |
| 304 | 2998 __ movptr(flags, ArrayAddress(table, Address(noreg, flags, Address::times_ptr))); |
| 0 | 2999 } |
| 3000 | |
| 3001 // push return address | |
| 304 | 3002 __ push(flags); |
| 0 | 3003 |
|
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3004 // Restore flags value from the constant pool cache, and restore rsi |
| 0 | 3005 // for later null checks. rsi is the bytecode pointer |
| 3006 if (save_flags) { | |
| 304 | 3007 __ mov(flags, rsi); |
| 0 | 3008 __ restore_bcp(); |
| 3009 } | |
| 3010 } | |
| 3011 | |
| 3012 | |
|
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3013 void TemplateTable::invokevirtual_helper(Register index, |
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3014 Register recv, |
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3015 Register flags) { |
| 0 | 3016 // Uses temporary registers rax, rdx |
| 3017 assert_different_registers(index, recv, rax, rdx); | |
|
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3018 assert(index == rbx, ""); |
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3019 assert(recv == rcx, ""); |
| 0 | 3020 |
| 3021 // Test for an invoke of a final method | |
| 3022 Label notFinal; | |
| 3023 __ movl(rax, flags); | |
|
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3024 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
| 0 | 3025 __ jcc(Assembler::zero, notFinal); |
| 3026 | |
|
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3027 const Register method = index; // method must be rbx |
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3028 assert(method == rbx, |
|
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3029 "Method* must be rbx for interpreter calling convention"); |
| 0 | 3030 |
| 3031 // do the call - the index is actually the method to call | |
|
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3032 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
| 0 | 3033 |
| 3034 // It's final, need a null check here! | |
| 3035 __ null_check(recv); | |
| 3036 | |
| 3037 // profile this call | |
| 3038 __ profile_final_call(rax); | |
|
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|
3039 __ profile_arguments_type(rax, method, rsi, true); |
| 0 | 3040 |
| 3041 __ jump_from_interpreted(method, rax); | |
| 3042 | |
| 3043 __ bind(notFinal); | |
| 3044 | |
| 3045 // get receiver klass | |
| 3046 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
|
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|
3047 __ load_klass(rax, recv); |
| 0 | 3048 |
| 3049 // profile this call | |
| 3050 __ profile_virtual_call(rax, rdi, rdx); | |
| 3051 | |
|
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3052 // get target Method* & entry point |
|
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|
3053 __ lookup_virtual_method(rax, index, method); |
|
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|
3054 __ profile_arguments_type(rdx, method, rsi, true); |
| 0 | 3055 __ jump_from_interpreted(method, rdx); |
| 3056 } | |
| 3057 | |
| 3058 | |
| 3059 void TemplateTable::invokevirtual(int byte_no) { | |
| 3060 transition(vtos, vtos); | |
| 1565 | 3061 assert(byte_no == f2_byte, "use this argument"); |
|
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|
3062 prepare_invoke(byte_no, |
|
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|
3063 rbx, // method or vtable index |
|
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|
3064 noreg, // unused itable index |
|
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|
3065 rcx, rdx); // recv, flags |
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|
3066 |
|
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|
3067 // rbx: index |
| 0 | 3068 // rcx: receiver |
| 3069 // rdx: flags | |
| 3070 | |
| 3071 invokevirtual_helper(rbx, rcx, rdx); | |
| 3072 } | |
| 3073 | |
| 3074 | |
| 3075 void TemplateTable::invokespecial(int byte_no) { | |
| 3076 transition(vtos, vtos); | |
| 1565 | 3077 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3078 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
|
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|
3079 rcx); // get receiver also for null check |
|
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|
3080 __ verify_oop(rcx); |
|
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|
3081 __ null_check(rcx); |
| 0 | 3082 // do the call |
| 3083 __ profile_call(rax); | |
|
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|
3084 __ profile_arguments_type(rax, rbx, rsi, false); |
| 0 | 3085 __ jump_from_interpreted(rbx, rax); |
| 3086 } | |
| 3087 | |
| 3088 | |
| 3089 void TemplateTable::invokestatic(int byte_no) { | |
| 3090 transition(vtos, vtos); | |
| 1565 | 3091 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3092 prepare_invoke(byte_no, rbx); // get f1 Method* |
| 0 | 3093 // do the call |
| 3094 __ profile_call(rax); | |
|
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|
3095 __ profile_arguments_type(rax, rbx, rsi, false); |
| 0 | 3096 __ jump_from_interpreted(rbx, rax); |
| 3097 } | |
| 3098 | |
| 3099 | |
| 3100 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3101 transition(vtos, vtos); | |
| 1565 | 3102 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3103 __ stop("fast_invokevfinal not used on x86"); |
| 3104 } | |
| 3105 | |
| 3106 | |
| 3107 void TemplateTable::invokeinterface(int byte_no) { | |
| 3108 transition(vtos, vtos); | |
| 1565 | 3109 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3110 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
|
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|
3111 rcx, rdx); // recv, flags |
|
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|
3112 |
|
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|
3113 // rax: interface klass (from f1) |
|
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|
3114 // rbx: itable index (from f2) |
| 0 | 3115 // rcx: receiver |
| 3116 // rdx: flags | |
| 3117 | |
| 3118 // Special case of invokeinterface called for virtual method of | |
| 3119 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3120 // This code isn't produced by javac, but could be produced by | |
| 3121 // another compliant java compiler. | |
| 3122 Label notMethod; | |
| 3123 __ movl(rdi, rdx); | |
|
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|
3124 __ andl(rdi, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
| 0 | 3125 __ jcc(Assembler::zero, notMethod); |
| 3126 | |
| 3127 invokevirtual_helper(rbx, rcx, rdx); | |
| 3128 __ bind(notMethod); | |
| 3129 | |
| 3130 // Get receiver klass into rdx - also a null check | |
| 3131 __ restore_locals(); // restore rdi | |
|
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|
3132 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
|
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|
3133 __ load_klass(rdx, rcx); |
| 0 | 3134 |
| 3135 // profile this call | |
| 3136 __ profile_virtual_call(rdx, rsi, rdi); | |
| 3137 | |
|
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|
3138 Label no_such_interface, no_such_method; |
|
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|
3139 |
|
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|
3140 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
|
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|
3141 rdx, rax, rbx, |
|
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|
3142 // outputs: method, scan temp. reg |
|
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|
3143 rbx, rsi, |
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|
3144 no_such_interface); |
|
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|
3145 |
|
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|
3146 // rbx: Method* to call |
|
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|
3147 // rcx: receiver |
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|
3148 // Check for abstract method error |
|
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|
3149 // Note: This should be done more efficiently via a throw_abstract_method_error |
|
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|
3150 // interpreter entry point and a conditional jump to it in case of a null |
|
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|
3151 // method. |
|
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|
3152 __ testptr(rbx, rbx); |
|
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|
3153 __ jcc(Assembler::zero, no_such_method); |
|
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|
3154 |
|
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|
3155 __ profile_arguments_type(rdx, rbx, rsi, true); |
|
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|
3156 |
|
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|
3157 // do the call |
|
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|
3158 // rcx: receiver |
|
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3159 // rbx,: Method* |
|
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|
3160 __ jump_from_interpreted(rbx, rdx); |
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|
3161 __ should_not_reach_here(); |
|
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|
3162 |
|
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|
3163 // exception handling code follows... |
|
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|
3164 // note: must restore interpreter registers to canonical |
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|
3165 // state for exception handling to work correctly! |
|
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|
3166 |
|
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|
3167 __ bind(no_such_method); |
| 0 | 3168 // throw exception |
|
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|
3169 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
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|
3170 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) |
|
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|
3171 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
|
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|
3172 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
|
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|
3173 // the call_VM checks for exception, so we should never return here. |
|
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|
3174 __ should_not_reach_here(); |
|
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|
3175 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3176 __ bind(no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3177 // throw exception |
| 304 | 3178 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
| 0 | 3179 __ restore_bcp(); // rsi must be correct for exception handler (was destroyed) |
| 3180 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) | |
| 3181 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 3182 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3183 // the call_VM checks for exception, so we should never return here. | |
| 3184 __ should_not_reach_here(); | |
| 3185 } | |
| 3186 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3187 void TemplateTable::invokehandle(int byte_no) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3188 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3189 assert(byte_no == f1_byte, "use this argument"); |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3190 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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6740
diff
changeset
|
3191 const Register rax_mtype = rax; |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3192 const Register rcx_recv = rcx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3193 const Register rdx_flags = rdx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3194 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3195 if (!EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3196 // rewriter does not generate this bytecode |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3197 __ should_not_reach_here(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3198 return; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3199 } |
|
1d7922586cf6
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twisti
parents:
5995
diff
changeset
|
3200 |
|
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
|
3201 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
|
3202 __ verify_method_ptr(rbx_method); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3203 __ verify_oop(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3204 __ null_check(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3205 |
|
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
|
3206 // rax: MethodType object (from cpool->resolved_references[f1], if necessary) |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3207 // rbx: MH.invokeExact_MT method (from f2) |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3208 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3209 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3210 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3211 // 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
|
3212 __ profile_final_call(rax); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10105
diff
changeset
|
3213 __ profile_arguments_type(rdx, rbx_method, rsi, true); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3214 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3215 __ jump_from_interpreted(rbx_method, rdx); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3216 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3217 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3218 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3219 void TemplateTable::invokedynamic(int byte_no) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3220 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3221 assert(byte_no == f1_byte, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3222 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3223 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3224 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3225 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3226 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3227 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3228 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3229 // 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
|
3230 __ should_not_reach_here(); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3231 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3232 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3233 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3234 const Register rbx_method = rbx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3235 const Register rax_callsite = rax; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3236 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3237 prepare_invoke(byte_no, rbx_method, rax_callsite); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3238 |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
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6740
diff
changeset
|
3239 // rax: CallSite object (from cpool->resolved_references[f1]) |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3240 // rbx: MH.linkToCallSite method (from f2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3241 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3242 // Note: rax_callsite is already pushed by prepare_invoke |
| 1846 | 3243 |
|
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3244 // %%% should make a type profile for any invokedynamic that takes a ref argument |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3245 // profile this call |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3246 __ profile_call(rsi); |
|
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
parents:
10105
diff
changeset
|
3247 __ profile_arguments_type(rdx, rbx, rsi, false); |
|
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3248 |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3249 __ verify_oop(rax_callsite); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3250 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3251 __ jump_from_interpreted(rbx_method, rdx); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
628
diff
changeset
|
3252 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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628
diff
changeset
|
3253 |
| 0 | 3254 //---------------------------------------------------------------------------------------------------- |
| 3255 // Allocation | |
| 3256 | |
| 3257 void TemplateTable::_new() { | |
| 3258 transition(vtos, atos); | |
| 3259 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3260 Label slow_case; | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3261 Label slow_case_no_pop; |
| 0 | 3262 Label done; |
| 3263 Label initialize_header; | |
| 3264 Label initialize_object; // including clearing the fields | |
| 3265 Label allocate_shared; | |
| 3266 | |
| 3267 __ get_cpool_and_tags(rcx, rax); | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3268 |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3269 // Make sure the class we're about to instantiate has been resolved. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3270 // This is done before loading InstanceKlass to be consistent with the order |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3271 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3272 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3273 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), JVM_CONSTANT_Class); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3274 __ jcc(Assembler::notEqual, slow_case_no_pop); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3275 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3276 // get InstanceKlass |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3277 __ movptr(rcx, Address(rcx, rdx, Address::times_ptr, sizeof(ConstantPool))); |
| 304 | 3278 __ push(rcx); // save the contexts of klass for initializing the header |
| 0 | 3279 |
| 3280 // make sure klass is initialized & doesn't have finalizer | |
| 3281 // make sure klass is fully initialized | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3282 __ cmpb(Address(rcx, InstanceKlass::init_state_offset()), InstanceKlass::fully_initialized); |
| 0 | 3283 __ jcc(Assembler::notEqual, slow_case); |
| 3284 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3285 // get instance_size in InstanceKlass (scaled to a count of bytes) |
|
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3852
diff
changeset
|
3286 __ movl(rdx, Address(rcx, Klass::layout_helper_offset())); |
| 0 | 3287 // test to see if it has a finalizer or is malformed in some way |
| 3288 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
| 3289 __ jcc(Assembler::notZero, slow_case); | |
| 3290 | |
| 3291 // | |
| 3292 // Allocate the instance | |
| 3293 // 1) Try to allocate in the TLAB | |
| 3294 // 2) if fail and the object is large allocate in the shared Eden | |
| 3295 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3296 // (creates a new TLAB, etc.) | |
| 3297 | |
| 3298 const bool allow_shared_alloc = | |
| 3299 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3300 | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
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1972
diff
changeset
|
3301 const Register thread = rcx; |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3302 if (UseTLAB || allow_shared_alloc) { |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3303 __ get_thread(thread); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3304 } |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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parents:
1972
diff
changeset
|
3305 |
| 0 | 3306 if (UseTLAB) { |
| 304 | 3307 __ movptr(rax, Address(thread, in_bytes(JavaThread::tlab_top_offset()))); |
| 3308 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3309 __ cmpptr(rbx, Address(thread, in_bytes(JavaThread::tlab_end_offset()))); | |
| 0 | 3310 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
| 304 | 3311 __ movptr(Address(thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
| 0 | 3312 if (ZeroTLAB) { |
| 3313 // the fields have been already cleared | |
| 3314 __ jmp(initialize_header); | |
| 3315 } else { | |
| 3316 // initialize both the header and fields | |
| 3317 __ jmp(initialize_object); | |
| 3318 } | |
| 3319 } | |
| 3320 | |
| 3321 // Allocation in the shared Eden, if allowed. | |
| 3322 // | |
| 3323 // rdx: instance size in bytes | |
| 3324 if (allow_shared_alloc) { | |
| 3325 __ bind(allocate_shared); | |
| 3326 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
107
diff
changeset
|
3327 ExternalAddress heap_top((address)Universe::heap()->top_addr()); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
107
diff
changeset
|
3328 |
| 0 | 3329 Label retry; |
| 3330 __ bind(retry); | |
| 304 | 3331 __ movptr(rax, heap_top); |
| 3332 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3333 __ cmpptr(rbx, ExternalAddress((address)Universe::heap()->end_addr())); | |
| 0 | 3334 __ jcc(Assembler::above, slow_case); |
| 3335 | |
| 3336 // Compare rax, with the top addr, and if still equal, store the new | |
| 3337 // top addr in rbx, at the address of the top addr pointer. Sets ZF if was | |
| 3338 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
| 3339 // | |
| 3340 // rax,: object begin | |
| 3341 // rbx,: object end | |
| 3342 // rdx: instance size in bytes | |
| 304 | 3343 __ locked_cmpxchgptr(rbx, heap_top); |
| 0 | 3344 |
| 3345 // if someone beat us on the allocation, try again, otherwise continue | |
| 3346 __ jcc(Assembler::notEqual, retry); | |
|
2100
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diff
changeset
|
3347 |
|
b1a2afa37ec4
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phh
parents:
1972
diff
changeset
|
3348 __ incr_allocated_bytes(thread, rdx, 0); |
| 0 | 3349 } |
| 3350 | |
| 3351 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3352 // The object is initialized before the header. If the object size is | |
| 3353 // zero, go directly to the header initialization. | |
| 3354 __ bind(initialize_object); | |
| 3355 __ decrement(rdx, sizeof(oopDesc)); | |
| 3356 __ jcc(Assembler::zero, initialize_header); | |
| 3357 | |
|
2100
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parents:
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diff
changeset
|
3358 // Initialize topmost object field, divide rdx by 8, check if odd and |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1972
diff
changeset
|
3359 // test if zero. |
| 0 | 3360 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
| 3361 __ shrl(rdx, LogBytesPerLong); // divide by 2*oopSize and set carry flag if odd | |
| 3362 | |
|
2100
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phh
parents:
1972
diff
changeset
|
3363 // rdx must have been multiple of 8 |
| 0 | 3364 #ifdef ASSERT |
| 3365 // make sure rdx was multiple of 8 | |
| 3366 Label L; | |
| 3367 // Ignore partial flag stall after shrl() since it is debug VM | |
| 3368 __ jccb(Assembler::carryClear, L); | |
| 3369 __ stop("object size is not multiple of 2 - adjust this code"); | |
| 3370 __ bind(L); | |
| 3371 // rdx must be > 0, no extra check needed here | |
| 3372 #endif | |
| 3373 | |
| 3374 // initialize remaining object fields: rdx was a multiple of 8 | |
| 3375 { Label loop; | |
| 3376 __ bind(loop); | |
| 304 | 3377 __ movptr(Address(rax, rdx, Address::times_8, sizeof(oopDesc) - 1*oopSize), rcx); |
| 3378 NOT_LP64(__ movptr(Address(rax, rdx, Address::times_8, sizeof(oopDesc) - 2*oopSize), rcx)); | |
| 0 | 3379 __ decrement(rdx); |
| 3380 __ jcc(Assembler::notZero, loop); | |
| 3381 } | |
| 3382 | |
| 3383 // initialize object header only. | |
| 3384 __ bind(initialize_header); | |
| 3385 if (UseBiasedLocking) { | |
| 304 | 3386 __ pop(rcx); // get saved klass back in the register. |
|
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3387 __ movptr(rbx, Address(rcx, Klass::prototype_header_offset())); |
| 304 | 3388 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes ()), rbx); |
| 0 | 3389 } else { |
| 304 | 3390 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes ()), |
| 3391 (int32_t)markOopDesc::prototype()); // header | |
| 3392 __ pop(rcx); // get saved klass back in the register. | |
| 0 | 3393 } |
|
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|
3394 __ store_klass(rax, rcx); // klass |
| 0 | 3395 |
| 3396 { | |
| 3397 SkipIfEqual skip_if(_masm, &DTraceAllocProbes, 0); | |
| 3398 // Trigger dtrace event for fastpath | |
| 3399 __ push(atos); | |
| 3400 __ call_VM_leaf( | |
| 3401 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); | |
| 3402 __ pop(atos); | |
| 3403 } | |
| 3404 | |
| 3405 __ jmp(done); | |
| 3406 } | |
| 3407 | |
| 3408 // slow case | |
| 3409 __ bind(slow_case); | |
| 304 | 3410 __ pop(rcx); // restore stack pointer to what it was when we came in. |
|
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|
3411 __ bind(slow_case_no_pop); |
| 0 | 3412 __ get_constant_pool(rax); |
| 3413 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3414 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), rax, rdx); | |
| 3415 | |
| 3416 // continue | |
| 3417 __ bind(done); | |
| 3418 } | |
| 3419 | |
| 3420 | |
| 3421 void TemplateTable::newarray() { | |
| 3422 transition(itos, atos); | |
| 3423 __ push_i(rax); // make sure everything is on the stack | |
| 3424 __ load_unsigned_byte(rdx, at_bcp(1)); | |
| 3425 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), rdx, rax); | |
| 3426 __ pop_i(rdx); // discard size | |
| 3427 } | |
| 3428 | |
| 3429 | |
| 3430 void TemplateTable::anewarray() { | |
| 3431 transition(itos, atos); | |
| 3432 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3433 __ get_constant_pool(rcx); | |
| 3434 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), rcx, rdx, rax); | |
| 3435 } | |
| 3436 | |
| 3437 | |
| 3438 void TemplateTable::arraylength() { | |
| 3439 transition(atos, itos); | |
| 3440 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
| 3441 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
| 3442 } | |
| 3443 | |
| 3444 | |
| 3445 void TemplateTable::checkcast() { | |
| 3446 transition(atos, atos); | |
| 3447 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3448 __ testptr(rax, rax); // Object is in EAX |
| 0 | 3449 __ jcc(Assembler::zero, is_null); |
| 3450 | |
| 3451 // Get cpool & tags index | |
| 3452 __ get_cpool_and_tags(rcx, rdx); // ECX=cpool, EDX=tags array | |
| 3453 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // EBX=index | |
| 3454 // See if bytecode has already been quicked | |
|
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3455 __ cmpb(Address(rdx, rbx, Address::times_1, Array<u1>::base_offset_in_bytes()), JVM_CONSTANT_Class); |
| 0 | 3456 __ jcc(Assembler::equal, quicked); |
| 3457 | |
| 3458 __ push(atos); | |
|
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3459 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
|
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3460 // vm_result_2 has metadata result |
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3461 // borrow rdi from locals |
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3462 __ get_thread(rdi); |
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3463 __ get_vm_result_2(rax, rdi); |
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3464 __ restore_locals(); |
| 0 | 3465 __ pop_ptr(rdx); |
| 3466 __ jmpb(resolved); | |
| 3467 | |
| 3468 // Get superklass in EAX and subklass in EBX | |
| 3469 __ bind(quicked); | |
| 304 | 3470 __ mov(rdx, rax); // Save object in EDX; EAX needed for subtype check |
|
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3471 __ movptr(rax, Address(rcx, rbx, Address::times_ptr, sizeof(ConstantPool))); |
| 0 | 3472 |
| 3473 __ bind(resolved); | |
|
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|
3474 __ load_klass(rbx, rdx); |
| 0 | 3475 |
| 3476 // Generate subtype check. Blows ECX. Resets EDI. Object in EDX. | |
| 3477 // Superklass in EAX. Subklass in EBX. | |
| 3478 __ gen_subtype_check( rbx, ok_is_subtype ); | |
| 3479 | |
| 3480 // Come here on failure | |
| 304 | 3481 __ push(rdx); |
| 0 | 3482 // object is at TOS |
| 3483 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
| 3484 | |
| 3485 // Come here on success | |
| 3486 __ bind(ok_is_subtype); | |
| 304 | 3487 __ mov(rax,rdx); // Restore object in EDX |
| 0 | 3488 |
| 3489 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
| 3490 if (ProfileInterpreter) { | |
| 3491 __ jmp(done); | |
| 3492 __ bind(is_null); | |
| 3493 __ profile_null_seen(rcx); | |
| 3494 } else { | |
| 3495 __ bind(is_null); // same as 'done' | |
| 3496 } | |
| 3497 __ bind(done); | |
| 3498 } | |
| 3499 | |
| 3500 | |
| 3501 void TemplateTable::instanceof() { | |
| 3502 transition(atos, itos); | |
| 3503 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3504 __ testptr(rax, rax); |
| 0 | 3505 __ jcc(Assembler::zero, is_null); |
| 3506 | |
| 3507 // Get cpool & tags index | |
| 3508 __ get_cpool_and_tags(rcx, rdx); // ECX=cpool, EDX=tags array | |
| 3509 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // EBX=index | |
| 3510 // See if bytecode has already been quicked | |
|
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3511 __ cmpb(Address(rdx, rbx, Address::times_1, Array<u1>::base_offset_in_bytes()), JVM_CONSTANT_Class); |
| 0 | 3512 __ jcc(Assembler::equal, quicked); |
| 3513 | |
| 3514 __ push(atos); | |
|
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3515 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3516 // vm_result_2 has metadata result |
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3517 // borrow rdi from locals |
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3518 __ get_thread(rdi); |
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3519 __ get_vm_result_2(rax, rdi); |
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3520 __ restore_locals(); |
| 0 | 3521 __ pop_ptr(rdx); |
|
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|
3522 __ load_klass(rdx, rdx); |
| 0 | 3523 __ jmp(resolved); |
| 3524 | |
| 3525 // Get superklass in EAX and subklass in EDX | |
| 3526 __ bind(quicked); | |
|
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3527 __ load_klass(rdx, rax); |
|
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3528 __ movptr(rax, Address(rcx, rbx, Address::times_ptr, sizeof(ConstantPool))); |
| 0 | 3529 |
| 3530 __ bind(resolved); | |
| 3531 | |
| 3532 // Generate subtype check. Blows ECX. Resets EDI. | |
| 3533 // Superklass in EAX. Subklass in EDX. | |
| 3534 __ gen_subtype_check( rdx, ok_is_subtype ); | |
| 3535 | |
| 3536 // Come here on failure | |
| 3537 __ xorl(rax,rax); | |
| 3538 __ jmpb(done); | |
| 3539 // Come here on success | |
| 3540 __ bind(ok_is_subtype); | |
| 3541 __ movl(rax, 1); | |
| 3542 | |
| 3543 // Collect counts on whether this test sees NULLs a lot or not. | |
| 3544 if (ProfileInterpreter) { | |
| 3545 __ jmp(done); | |
| 3546 __ bind(is_null); | |
| 3547 __ profile_null_seen(rcx); | |
| 3548 } else { | |
| 3549 __ bind(is_null); // same as 'done' | |
| 3550 } | |
| 3551 __ bind(done); | |
| 3552 // rax, = 0: obj == NULL or obj is not an instanceof the specified klass | |
| 3553 // rax, = 1: obj != NULL and obj is an instanceof the specified klass | |
| 3554 } | |
| 3555 | |
| 3556 | |
| 3557 //---------------------------------------------------------------------------------------------------- | |
| 3558 // Breakpoints | |
| 3559 void TemplateTable::_breakpoint() { | |
| 3560 | |
| 3561 // Note: We get here even if we are single stepping.. | |
| 3562 // jbug inists on setting breakpoints at every bytecode | |
| 3563 // even if we are in single step mode. | |
| 3564 | |
| 3565 transition(vtos, vtos); | |
| 3566 | |
| 3567 // get the unpatched byte code | |
| 3568 __ get_method(rcx); | |
| 3569 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), rcx, rsi); | |
| 304 | 3570 __ mov(rbx, rax); |
| 0 | 3571 |
| 3572 // post the breakpoint event | |
| 3573 __ get_method(rcx); | |
| 3574 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), rcx, rsi); | |
| 3575 | |
| 3576 // complete the execution of original bytecode | |
| 3577 __ dispatch_only_normal(vtos); | |
| 3578 } | |
| 3579 | |
| 3580 | |
| 3581 //---------------------------------------------------------------------------------------------------- | |
| 3582 // Exceptions | |
| 3583 | |
| 3584 void TemplateTable::athrow() { | |
| 3585 transition(atos, vtos); | |
| 3586 __ null_check(rax); | |
| 3587 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 3588 } | |
| 3589 | |
| 3590 | |
| 3591 //---------------------------------------------------------------------------------------------------- | |
| 3592 // Synchronization | |
| 3593 // | |
| 3594 // Note: monitorenter & exit are symmetric routines; which is reflected | |
| 3595 // in the assembly code structure as well | |
| 3596 // | |
| 3597 // Stack layout: | |
| 3598 // | |
| 3599 // [expressions ] <--- rsp = expression stack top | |
| 3600 // .. | |
| 3601 // [expressions ] | |
| 3602 // [monitor entry] <--- monitor block top = expression stack bot | |
| 3603 // .. | |
| 3604 // [monitor entry] | |
| 3605 // [frame data ] <--- monitor block bot | |
| 3606 // ... | |
| 3607 // [saved rbp, ] <--- rbp, | |
| 3608 | |
| 3609 | |
| 3610 void TemplateTable::monitorenter() { | |
| 3611 transition(atos, vtos); | |
| 3612 | |
| 3613 // check for NULL object | |
| 3614 __ null_check(rax); | |
| 3615 | |
| 3616 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3617 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3618 const int entry_size = ( frame::interpreter_frame_monitor_size() * wordSize); | |
| 3619 Label allocated; | |
| 3620 | |
| 3621 // initialize entry pointer | |
| 3622 __ xorl(rdx, rdx); // points to free slot or NULL | |
| 3623 | |
| 3624 // find a free slot in the monitor block (result in rdx) | |
| 3625 { Label entry, loop, exit; | |
|
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|
3626 __ movptr(rcx, monitor_block_top); // points to current entry, starting with top-most entry |
|
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|
3627 |
|
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|
3628 __ lea(rbx, monitor_block_bot); // points to word before bottom of monitor block |
| 0 | 3629 __ jmpb(entry); |
| 3630 | |
| 3631 __ bind(loop); | |
| 304 | 3632 __ cmpptr(Address(rcx, BasicObjectLock::obj_offset_in_bytes()), (int32_t)NULL_WORD); // check if current entry is used |
|
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|
3633 __ cmovptr(Assembler::equal, rdx, rcx); // if not used then remember entry in rdx |
| 304 | 3634 __ cmpptr(rax, Address(rcx, BasicObjectLock::obj_offset_in_bytes())); // check if current entry is for same object |
| 3635 __ jccb(Assembler::equal, exit); // if same object then stop searching | |
| 3636 __ addptr(rcx, entry_size); // otherwise advance to next entry | |
| 0 | 3637 __ bind(entry); |
| 304 | 3638 __ cmpptr(rcx, rbx); // check if bottom reached |
| 0 | 3639 __ jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
| 3640 __ bind(exit); | |
| 3641 } | |
| 3642 | |
| 304 | 3643 __ testptr(rdx, rdx); // check if a slot has been found |
| 3644 __ jccb(Assembler::notZero, allocated); // if found, continue with that one | |
| 0 | 3645 |
| 3646 // allocate one if there's no free slot | |
| 3647 { Label entry, loop; | |
| 3648 // 1. compute new pointers // rsp: old expression stack top | |
| 304 | 3649 __ movptr(rdx, monitor_block_bot); // rdx: old expression stack bottom |
| 3650 __ subptr(rsp, entry_size); // move expression stack top | |
| 3651 __ subptr(rdx, entry_size); // move expression stack bottom | |
| 3652 __ mov(rcx, rsp); // set start value for copy loop | |
| 3653 __ movptr(monitor_block_bot, rdx); // set new monitor block top | |
| 0 | 3654 __ jmp(entry); |
| 3655 // 2. move expression stack contents | |
| 3656 __ bind(loop); | |
| 304 | 3657 __ movptr(rbx, Address(rcx, entry_size)); // load expression stack word from old location |
| 3658 __ movptr(Address(rcx, 0), rbx); // and store it at new location | |
| 3659 __ addptr(rcx, wordSize); // advance to next word | |
| 0 | 3660 __ bind(entry); |
| 304 | 3661 __ cmpptr(rcx, rdx); // check if bottom reached |
| 0 | 3662 __ jcc(Assembler::notEqual, loop); // if not at bottom then copy next word |
| 3663 } | |
| 3664 | |
| 3665 // call run-time routine | |
| 3666 // rdx: points to monitor entry | |
| 3667 __ bind(allocated); | |
| 3668 | |
| 3669 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3670 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3671 __ increment(rsi); | |
| 3672 | |
| 304 | 3673 __ movptr(Address(rdx, BasicObjectLock::obj_offset_in_bytes()), rax); // store object |
| 0 | 3674 __ lock_object(rdx); |
| 3675 | |
| 3676 // check to make sure this monitor doesn't cause stack overflow after locking | |
| 3677 __ save_bcp(); // in case of exception | |
| 3678 __ generate_stack_overflow_check(0); | |
| 3679 | |
| 3680 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3681 __ dispatch_next(vtos); | |
| 3682 } | |
| 3683 | |
| 3684 | |
| 3685 void TemplateTable::monitorexit() { | |
| 3686 transition(atos, vtos); | |
| 3687 | |
| 3688 // check for NULL object | |
| 3689 __ null_check(rax); | |
| 3690 | |
| 3691 const Address monitor_block_top(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3692 const Address monitor_block_bot(rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3693 const int entry_size = ( frame::interpreter_frame_monitor_size() * wordSize); | |
| 3694 Label found; | |
| 3695 | |
| 3696 // find matching slot | |
| 3697 { Label entry, loop; | |
| 304 | 3698 __ movptr(rdx, monitor_block_top); // points to current entry, starting with top-most entry |
| 3699 __ lea(rbx, monitor_block_bot); // points to word before bottom of monitor block | |
| 0 | 3700 __ jmpb(entry); |
| 3701 | |
| 3702 __ bind(loop); | |
| 304 | 3703 __ cmpptr(rax, Address(rdx, BasicObjectLock::obj_offset_in_bytes())); // check if current entry is for same object |
| 0 | 3704 __ jcc(Assembler::equal, found); // if same object then stop searching |
| 304 | 3705 __ addptr(rdx, entry_size); // otherwise advance to next entry |
| 0 | 3706 __ bind(entry); |
| 304 | 3707 __ cmpptr(rdx, rbx); // check if bottom reached |
| 0 | 3708 __ jcc(Assembler::notEqual, loop); // if not at bottom then check this entry |
| 3709 } | |
| 3710 | |
| 3711 // error handling. Unlocking was not block-structured | |
| 3712 Label end; | |
| 3713 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3714 __ should_not_reach_here(); | |
| 3715 | |
| 3716 // call run-time routine | |
| 3717 // rcx: points to monitor entry | |
| 3718 __ bind(found); | |
| 3719 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
| 3720 __ unlock_object(rdx); | |
| 3721 __ pop_ptr(rax); // discard object | |
| 3722 __ bind(end); | |
| 3723 } | |
| 3724 | |
| 3725 | |
| 3726 //---------------------------------------------------------------------------------------------------- | |
| 3727 // Wide instructions | |
| 3728 | |
| 3729 void TemplateTable::wide() { | |
| 3730 transition(vtos, vtos); | |
| 3731 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 304 | 3732 ExternalAddress wtable((address)Interpreter::_wentry_point); |
| 3733 __ jump(ArrayAddress(wtable, Address(noreg, rbx, Address::times_ptr))); | |
| 0 | 3734 // Note: the rsi increment step is part of the individual wide bytecode implementations |
| 3735 } | |
| 3736 | |
| 3737 | |
| 3738 //---------------------------------------------------------------------------------------------------- | |
| 3739 // Multi arrays | |
| 3740 | |
| 3741 void TemplateTable::multianewarray() { | |
| 3742 transition(vtos, atos); | |
| 3743 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
| 3744 // last dim is on top of stack; we want address of first one: | |
| 3745 // first_addr = last_addr + (ndims - 1) * stackElementSize - 1*wordsize | |
| 3746 // the latter wordSize to point to the beginning of the array. | |
| 304 | 3747 __ lea( rax, Address(rsp, rax, Interpreter::stackElementScale(), -wordSize)); |
| 0 | 3748 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), rax); // pass in rax, |
| 3749 __ load_unsigned_byte(rbx, at_bcp(3)); | |
| 304 | 3750 __ lea(rsp, Address(rsp, rbx, Interpreter::stackElementScale())); // get rid of counts |
| 0 | 3751 } |
| 3752 | |
| 3753 #endif /* !CC_INTERP */ |