Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 10108:9500809ceead
Merge
| author | jiangli |
|---|---|
| date | Thu, 18 Apr 2013 17:00:16 -0400 |
| parents | f2e682ef3156 aeaca88565e6 |
| children | 836a62f43af9 d13d7aba8c12 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2003, 2013, 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 |
| 304 | 40 #ifndef CC_INTERP |
| 41 | |
| 0 | 42 #define __ _masm-> |
| 43 | |
| 44 // Platform-dependent initialization | |
| 45 | |
| 46 void TemplateTable::pd_initialize() { | |
| 47 // No amd64 specific initialization | |
| 48 } | |
| 49 | |
| 50 // Address computation: local variables | |
| 51 | |
| 52 static inline Address iaddress(int n) { | |
| 53 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
| 54 } | |
| 55 | |
| 56 static inline Address laddress(int n) { | |
| 57 return iaddress(n + 1); | |
| 58 } | |
| 59 | |
| 60 static inline Address faddress(int n) { | |
| 61 return iaddress(n); | |
| 62 } | |
| 63 | |
| 64 static inline Address daddress(int n) { | |
| 65 return laddress(n); | |
| 66 } | |
| 67 | |
| 68 static inline Address aaddress(int n) { | |
| 69 return iaddress(n); | |
| 70 } | |
| 71 | |
| 72 static inline Address iaddress(Register r) { | |
| 1506 | 73 return Address(r14, r, Address::times_8); |
| 0 | 74 } |
| 75 | |
| 76 static inline Address laddress(Register r) { | |
| 77 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
| 78 } | |
| 79 | |
| 80 static inline Address faddress(Register r) { | |
| 81 return iaddress(r); | |
| 82 } | |
| 83 | |
| 84 static inline Address daddress(Register r) { | |
| 85 return laddress(r); | |
| 86 } | |
| 87 | |
| 88 static inline Address aaddress(Register r) { | |
| 89 return iaddress(r); | |
| 90 } | |
| 91 | |
| 92 static inline Address at_rsp() { | |
| 93 return Address(rsp, 0); | |
| 94 } | |
| 95 | |
| 96 // At top of Java expression stack which may be different than esp(). It | |
| 97 // isn't for category 1 objects. | |
| 98 static inline Address at_tos () { | |
| 99 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
| 100 } | |
| 101 | |
| 102 static inline Address at_tos_p1() { | |
| 103 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
| 104 } | |
| 105 | |
| 106 static inline Address at_tos_p2() { | |
| 107 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
| 108 } | |
| 109 | |
| 110 static inline Address at_tos_p3() { | |
| 111 return Address(rsp, Interpreter::expr_offset_in_bytes(3)); | |
| 112 } | |
| 113 | |
| 114 // Condition conversion | |
| 115 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
| 116 switch (cc) { | |
| 117 case TemplateTable::equal : return Assembler::notEqual; | |
| 118 case TemplateTable::not_equal : return Assembler::equal; | |
| 119 case TemplateTable::less : return Assembler::greaterEqual; | |
| 120 case TemplateTable::less_equal : return Assembler::greater; | |
| 121 case TemplateTable::greater : return Assembler::lessEqual; | |
| 122 case TemplateTable::greater_equal: return Assembler::less; | |
| 123 } | |
| 124 ShouldNotReachHere(); | |
| 125 return Assembler::zero; | |
| 126 } | |
| 127 | |
| 128 | |
| 129 // Miscelaneous helper routines | |
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130 // Store an oop (or NULL) at the address described by obj. |
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131 // If val == noreg this means store a NULL |
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132 |
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133 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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134 Address obj, |
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135 Register val, |
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136 BarrierSet::Name barrier, |
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137 bool precise) { |
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138 assert(val == noreg || val == rax, "parameter is just for looks"); |
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139 switch (barrier) { |
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140 #if INCLUDE_ALL_GCS |
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141 case BarrierSet::G1SATBCT: |
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142 case BarrierSet::G1SATBCTLogging: |
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143 { |
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144 // flatten object address if needed |
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145 if (obj.index() == noreg && obj.disp() == 0) { |
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146 if (obj.base() != rdx) { |
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147 __ movq(rdx, obj.base()); |
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148 } |
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149 } else { |
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150 __ leaq(rdx, obj); |
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151 } |
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152 __ g1_write_barrier_pre(rdx /* obj */, |
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153 rbx /* pre_val */, |
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154 r15_thread /* thread */, |
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155 r8 /* tmp */, |
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156 val != noreg /* tosca_live */, |
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157 false /* expand_call */); |
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158 if (val == noreg) { |
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159 __ store_heap_oop_null(Address(rdx, 0)); |
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160 } else { |
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161 // G1 barrier needs uncompressed oop for region cross check. |
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162 Register new_val = val; |
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163 if (UseCompressedOops) { |
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164 new_val = rbx; |
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165 __ movptr(new_val, val); |
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166 } |
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167 __ store_heap_oop(Address(rdx, 0), val); |
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168 __ g1_write_barrier_post(rdx /* store_adr */, |
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169 new_val /* new_val */, |
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170 r15_thread /* thread */, |
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171 r8 /* tmp */, |
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172 rbx /* tmp2 */); |
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173 } |
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174 } |
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175 break; |
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176 #endif // INCLUDE_ALL_GCS |
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177 case BarrierSet::CardTableModRef: |
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178 case BarrierSet::CardTableExtension: |
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179 { |
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180 if (val == noreg) { |
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181 __ store_heap_oop_null(obj); |
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182 } else { |
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183 __ store_heap_oop(obj, val); |
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184 // flatten object address if needed |
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185 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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186 __ store_check(obj.base()); |
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187 } else { |
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188 __ leaq(rdx, obj); |
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189 __ store_check(rdx); |
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190 } |
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191 } |
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192 } |
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193 break; |
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194 case BarrierSet::ModRef: |
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195 case BarrierSet::Other: |
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196 if (val == noreg) { |
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197 __ store_heap_oop_null(obj); |
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198 } else { |
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199 __ store_heap_oop(obj, val); |
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200 } |
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201 break; |
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202 default : |
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203 ShouldNotReachHere(); |
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204 |
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205 } |
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206 } |
| 0 | 207 |
| 208 Address TemplateTable::at_bcp(int offset) { | |
| 209 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 210 return Address(r13, offset); | |
| 211 } | |
| 212 | |
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213 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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214 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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215 int byte_no) { |
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216 if (!RewriteBytecodes) return; |
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217 Label L_patch_done; |
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218 |
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219 switch (bc) { |
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220 case Bytecodes::_fast_aputfield: |
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221 case Bytecodes::_fast_bputfield: |
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222 case Bytecodes::_fast_cputfield: |
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223 case Bytecodes::_fast_dputfield: |
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224 case Bytecodes::_fast_fputfield: |
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225 case Bytecodes::_fast_iputfield: |
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226 case Bytecodes::_fast_lputfield: |
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227 case Bytecodes::_fast_sputfield: |
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228 { |
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229 // We skip bytecode quickening for putfield instructions when |
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230 // the put_code written to the constant pool cache is zero. |
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231 // This is required so that every execution of this instruction |
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232 // calls out to InterpreterRuntime::resolve_get_put to do |
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233 // additional, required work. |
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234 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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235 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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236 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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237 __ movl(bc_reg, bc); |
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238 __ cmpl(temp_reg, (int) 0); |
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239 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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240 } |
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241 break; |
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242 default: |
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243 assert(byte_no == -1, "sanity"); |
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244 // the pair bytecodes have already done the load. |
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245 if (load_bc_into_bc_reg) { |
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246 __ movl(bc_reg, bc); |
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247 } |
| 0 | 248 } |
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249 |
| 0 | 250 if (JvmtiExport::can_post_breakpoint()) { |
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251 Label L_fast_patch; |
| 0 | 252 // if a breakpoint is present we can't rewrite the stream directly |
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253 __ movzbl(temp_reg, at_bcp(0)); |
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254 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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255 __ jcc(Assembler::notEqual, L_fast_patch); |
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256 __ get_method(temp_reg); |
| 0 | 257 // Let breakpoint table handling rewrite to quicker bytecode |
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258 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
| 0 | 259 #ifndef ASSERT |
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260 __ jmpb(L_patch_done); |
| 1108 | 261 #else |
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262 __ jmp(L_patch_done); |
| 1108 | 263 #endif |
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264 __ bind(L_fast_patch); |
| 0 | 265 } |
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266 |
| 1108 | 267 #ifdef ASSERT |
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268 Label L_okay; |
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269 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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270 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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271 __ jcc(Assembler::equal, L_okay); |
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272 __ cmpl(temp_reg, bc_reg); |
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273 __ jcc(Assembler::equal, L_okay); |
| 0 | 274 __ stop("patching the wrong bytecode"); |
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275 __ bind(L_okay); |
| 0 | 276 #endif |
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277 |
| 0 | 278 // patch bytecode |
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279 __ movb(at_bcp(0), bc_reg); |
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280 __ bind(L_patch_done); |
| 0 | 281 } |
| 282 | |
| 283 | |
| 284 // Individual instructions | |
| 285 | |
| 286 void TemplateTable::nop() { | |
| 287 transition(vtos, vtos); | |
| 288 // nothing to do | |
| 289 } | |
| 290 | |
| 291 void TemplateTable::shouldnotreachhere() { | |
| 292 transition(vtos, vtos); | |
| 293 __ stop("shouldnotreachhere bytecode"); | |
| 294 } | |
| 295 | |
| 296 void TemplateTable::aconst_null() { | |
| 297 transition(vtos, atos); | |
| 298 __ xorl(rax, rax); | |
| 299 } | |
| 300 | |
| 301 void TemplateTable::iconst(int value) { | |
| 302 transition(vtos, itos); | |
| 303 if (value == 0) { | |
| 304 __ xorl(rax, rax); | |
| 305 } else { | |
| 306 __ movl(rax, value); | |
| 307 } | |
| 308 } | |
| 309 | |
| 310 void TemplateTable::lconst(int value) { | |
| 311 transition(vtos, ltos); | |
| 312 if (value == 0) { | |
| 313 __ xorl(rax, rax); | |
| 314 } else { | |
| 315 __ movl(rax, value); | |
| 316 } | |
| 317 } | |
| 318 | |
| 319 void TemplateTable::fconst(int value) { | |
| 320 transition(vtos, ftos); | |
| 321 static float one = 1.0f, two = 2.0f; | |
| 322 switch (value) { | |
| 323 case 0: | |
| 324 __ xorps(xmm0, xmm0); | |
| 325 break; | |
| 326 case 1: | |
| 327 __ movflt(xmm0, ExternalAddress((address) &one)); | |
| 328 break; | |
| 329 case 2: | |
| 330 __ movflt(xmm0, ExternalAddress((address) &two)); | |
| 331 break; | |
| 332 default: | |
| 333 ShouldNotReachHere(); | |
| 334 break; | |
| 335 } | |
| 336 } | |
| 337 | |
| 338 void TemplateTable::dconst(int value) { | |
| 339 transition(vtos, dtos); | |
| 340 static double one = 1.0; | |
| 341 switch (value) { | |
| 342 case 0: | |
| 343 __ xorpd(xmm0, xmm0); | |
| 344 break; | |
| 345 case 1: | |
| 346 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
| 347 break; | |
| 348 default: | |
| 349 ShouldNotReachHere(); | |
| 350 break; | |
| 351 } | |
| 352 } | |
| 353 | |
| 354 void TemplateTable::bipush() { | |
| 355 transition(vtos, itos); | |
| 356 __ load_signed_byte(rax, at_bcp(1)); | |
| 357 } | |
| 358 | |
| 359 void TemplateTable::sipush() { | |
| 360 transition(vtos, itos); | |
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361 __ load_unsigned_short(rax, at_bcp(1)); |
| 0 | 362 __ bswapl(rax); |
| 363 __ sarl(rax, 16); | |
| 364 } | |
| 365 | |
| 366 void TemplateTable::ldc(bool wide) { | |
| 367 transition(vtos, vtos); | |
| 368 Label call_ldc, notFloat, notClass, Done; | |
| 369 | |
| 370 if (wide) { | |
| 371 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 372 } else { | |
| 373 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 374 } | |
| 375 | |
| 376 __ get_cpool_and_tags(rcx, rax); | |
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377 const int base_offset = ConstantPool::header_size() * wordSize; |
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378 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 379 |
| 380 // get type | |
| 381 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
| 382 | |
| 383 // unresolved class - get the resolved class | |
| 384 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
| 385 __ jccb(Assembler::equal, call_ldc); | |
| 386 | |
| 387 // unresolved class in error state - call into runtime to throw the error | |
| 388 // from the first resolution attempt | |
| 389 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
| 390 __ jccb(Assembler::equal, call_ldc); | |
| 391 | |
| 392 // resolved class - need to call vm to get java mirror of the class | |
| 393 __ cmpl(rdx, JVM_CONSTANT_Class); | |
| 394 __ jcc(Assembler::notEqual, notClass); | |
| 395 | |
| 396 __ bind(call_ldc); | |
| 397 __ movl(c_rarg1, wide); | |
| 398 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
| 399 __ push_ptr(rax); | |
| 400 __ verify_oop(rax); | |
| 401 __ jmp(Done); | |
| 402 | |
| 403 __ bind(notClass); | |
| 404 __ cmpl(rdx, JVM_CONSTANT_Float); | |
| 405 __ jccb(Assembler::notEqual, notFloat); | |
| 406 // ftos | |
| 407 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 408 __ push_f(); | |
| 409 __ jmp(Done); | |
| 410 | |
| 411 __ bind(notFloat); | |
| 412 #ifdef ASSERT | |
| 413 { | |
| 414 Label L; | |
| 415 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
| 416 __ jcc(Assembler::equal, L); | |
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417 // String and Object are rewritten to fast_aldc |
| 0 | 418 __ stop("unexpected tag type in ldc"); |
| 419 __ bind(L); | |
| 420 } | |
| 421 #endif | |
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422 // itos JVM_CONSTANT_Integer only |
| 0 | 423 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
| 424 __ push_i(rax); | |
| 425 __ bind(Done); | |
| 426 } | |
| 427 | |
| 1602 | 428 // Fast path for caching oop constants. |
| 429 void TemplateTable::fast_aldc(bool wide) { | |
| 430 transition(vtos, atos); | |
| 431 | |
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432 Register result = rax; |
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433 Register tmp = rdx; |
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434 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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435 |
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436 Label resolved; |
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437 |
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438 // We are resolved if the resolved reference cache entry contains a |
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439 // non-null object (String, MethodType, etc.) |
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440 assert_different_registers(result, tmp); |
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441 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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442 __ load_resolved_reference_at_index(result, tmp); |
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443 __ testl(result, result); |
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444 __ jcc(Assembler::notZero, resolved); |
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445 |
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446 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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447 |
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448 // first time invocation - must resolve first |
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449 __ movl(tmp, (int)bytecode()); |
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450 __ call_VM(result, entry, tmp); |
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451 |
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452 __ bind(resolved); |
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453 |
| 1602 | 454 if (VerifyOops) { |
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455 __ verify_oop(result); |
| 1602 | 456 } |
| 457 } | |
| 458 | |
| 0 | 459 void TemplateTable::ldc2_w() { |
| 460 transition(vtos, vtos); | |
| 461 Label Long, Done; | |
| 462 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 463 | |
| 464 __ get_cpool_and_tags(rcx, rax); | |
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465 const int base_offset = ConstantPool::header_size() * wordSize; |
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466 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 467 |
| 468 // get type | |
| 469 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
| 470 JVM_CONSTANT_Double); | |
| 471 __ jccb(Assembler::notEqual, Long); | |
| 472 // dtos | |
| 473 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 474 __ push_d(); | |
| 475 __ jmpb(Done); | |
| 476 | |
| 477 __ bind(Long); | |
| 478 // ltos | |
| 479 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 480 __ push_l(); | |
| 481 | |
| 482 __ bind(Done); | |
| 483 } | |
| 484 | |
| 485 void TemplateTable::locals_index(Register reg, int offset) { | |
| 486 __ load_unsigned_byte(reg, at_bcp(offset)); | |
| 304 | 487 __ negptr(reg); |
| 0 | 488 } |
| 489 | |
| 490 void TemplateTable::iload() { | |
| 491 transition(vtos, itos); | |
| 492 if (RewriteFrequentPairs) { | |
| 493 Label rewrite, done; | |
| 494 const Register bc = c_rarg3; | |
| 495 assert(rbx != bc, "register damaged"); | |
| 496 | |
| 497 // get next byte | |
| 498 __ load_unsigned_byte(rbx, | |
| 499 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
| 500 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 501 // last two iloads in a pair. Comparing against fast_iload means that | |
| 502 // the next bytecode is neither an iload or a caload, and therefore | |
| 503 // an iload pair. | |
| 504 __ cmpl(rbx, Bytecodes::_iload); | |
| 505 __ jcc(Assembler::equal, done); | |
| 506 | |
| 507 __ cmpl(rbx, Bytecodes::_fast_iload); | |
| 508 __ movl(bc, Bytecodes::_fast_iload2); | |
| 509 __ jccb(Assembler::equal, rewrite); | |
| 510 | |
| 511 // if _caload, rewrite to fast_icaload | |
| 512 __ cmpl(rbx, Bytecodes::_caload); | |
| 513 __ movl(bc, Bytecodes::_fast_icaload); | |
| 514 __ jccb(Assembler::equal, rewrite); | |
| 515 | |
| 516 // rewrite so iload doesn't check again. | |
| 517 __ movl(bc, Bytecodes::_fast_iload); | |
| 518 | |
| 519 // rewrite | |
| 520 // bc: fast bytecode | |
| 521 __ bind(rewrite); | |
| 522 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
| 523 __ bind(done); | |
| 524 } | |
| 525 | |
| 526 // Get the local value into tos | |
| 527 locals_index(rbx); | |
| 528 __ movl(rax, iaddress(rbx)); | |
| 529 } | |
| 530 | |
| 531 void TemplateTable::fast_iload2() { | |
| 532 transition(vtos, itos); | |
| 533 locals_index(rbx); | |
| 534 __ movl(rax, iaddress(rbx)); | |
| 535 __ push(itos); | |
| 536 locals_index(rbx, 3); | |
| 537 __ movl(rax, iaddress(rbx)); | |
| 538 } | |
| 539 | |
| 540 void TemplateTable::fast_iload() { | |
| 541 transition(vtos, itos); | |
| 542 locals_index(rbx); | |
| 543 __ movl(rax, iaddress(rbx)); | |
| 544 } | |
| 545 | |
| 546 void TemplateTable::lload() { | |
| 547 transition(vtos, ltos); | |
| 548 locals_index(rbx); | |
| 549 __ movq(rax, laddress(rbx)); | |
| 550 } | |
| 551 | |
| 552 void TemplateTable::fload() { | |
| 553 transition(vtos, ftos); | |
| 554 locals_index(rbx); | |
| 555 __ movflt(xmm0, faddress(rbx)); | |
| 556 } | |
| 557 | |
| 558 void TemplateTable::dload() { | |
| 559 transition(vtos, dtos); | |
| 560 locals_index(rbx); | |
| 561 __ movdbl(xmm0, daddress(rbx)); | |
| 562 } | |
| 563 | |
| 564 void TemplateTable::aload() { | |
| 565 transition(vtos, atos); | |
| 566 locals_index(rbx); | |
| 304 | 567 __ movptr(rax, aaddress(rbx)); |
| 0 | 568 } |
| 569 | |
| 570 void TemplateTable::locals_index_wide(Register reg) { | |
| 571 __ movl(reg, at_bcp(2)); | |
| 572 __ bswapl(reg); | |
| 573 __ shrl(reg, 16); | |
| 304 | 574 __ negptr(reg); |
| 0 | 575 } |
| 576 | |
| 577 void TemplateTable::wide_iload() { | |
| 578 transition(vtos, itos); | |
| 579 locals_index_wide(rbx); | |
| 580 __ movl(rax, iaddress(rbx)); | |
| 581 } | |
| 582 | |
| 583 void TemplateTable::wide_lload() { | |
| 584 transition(vtos, ltos); | |
| 585 locals_index_wide(rbx); | |
| 586 __ movq(rax, laddress(rbx)); | |
| 587 } | |
| 588 | |
| 589 void TemplateTable::wide_fload() { | |
| 590 transition(vtos, ftos); | |
| 591 locals_index_wide(rbx); | |
| 592 __ movflt(xmm0, faddress(rbx)); | |
| 593 } | |
| 594 | |
| 595 void TemplateTable::wide_dload() { | |
| 596 transition(vtos, dtos); | |
| 597 locals_index_wide(rbx); | |
| 598 __ movdbl(xmm0, daddress(rbx)); | |
| 599 } | |
| 600 | |
| 601 void TemplateTable::wide_aload() { | |
| 602 transition(vtos, atos); | |
| 603 locals_index_wide(rbx); | |
| 304 | 604 __ movptr(rax, aaddress(rbx)); |
| 0 | 605 } |
| 606 | |
| 607 void TemplateTable::index_check(Register array, Register index) { | |
| 608 // destroys rbx | |
| 609 // check array | |
| 610 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
| 611 // sign extend index for use by indexed load | |
| 304 | 612 __ movl2ptr(index, index); |
| 0 | 613 // check index |
| 614 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
| 615 if (index != rbx) { | |
| 616 // ??? convention: move aberrant index into ebx for exception message | |
| 617 assert(rbx != array, "different registers"); | |
| 618 __ movl(rbx, index); | |
| 619 } | |
| 620 __ jump_cc(Assembler::aboveEqual, | |
| 621 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
| 622 } | |
| 623 | |
| 624 void TemplateTable::iaload() { | |
| 625 transition(itos, itos); | |
| 626 __ pop_ptr(rdx); | |
| 627 // eax: index | |
| 628 // rdx: array | |
| 629 index_check(rdx, rax); // kills rbx | |
| 630 __ movl(rax, Address(rdx, rax, | |
| 631 Address::times_4, | |
| 632 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 633 } | |
| 634 | |
| 635 void TemplateTable::laload() { | |
| 636 transition(itos, ltos); | |
| 637 __ pop_ptr(rdx); | |
| 638 // eax: index | |
| 639 // rdx: array | |
| 640 index_check(rdx, rax); // kills rbx | |
| 641 __ movq(rax, Address(rdx, rbx, | |
| 642 Address::times_8, | |
| 643 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
| 644 } | |
| 645 | |
| 646 void TemplateTable::faload() { | |
| 647 transition(itos, ftos); | |
| 648 __ pop_ptr(rdx); | |
| 649 // eax: index | |
| 650 // rdx: array | |
| 651 index_check(rdx, rax); // kills rbx | |
| 652 __ movflt(xmm0, Address(rdx, rax, | |
| 653 Address::times_4, | |
| 654 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 655 } | |
| 656 | |
| 657 void TemplateTable::daload() { | |
| 658 transition(itos, dtos); | |
| 659 __ pop_ptr(rdx); | |
| 660 // eax: index | |
| 661 // rdx: array | |
| 662 index_check(rdx, rax); // kills rbx | |
| 663 __ movdbl(xmm0, Address(rdx, rax, | |
| 664 Address::times_8, | |
| 665 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 666 } | |
| 667 | |
| 668 void TemplateTable::aaload() { | |
| 669 transition(itos, atos); | |
| 670 __ pop_ptr(rdx); | |
| 671 // eax: index | |
| 672 // rdx: array | |
| 673 index_check(rdx, rax); // kills rbx | |
|
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674 __ load_heap_oop(rax, Address(rdx, rax, |
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675 UseCompressedOops ? Address::times_4 : Address::times_8, |
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676 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 0 | 677 } |
| 678 | |
| 679 void TemplateTable::baload() { | |
| 680 transition(itos, itos); | |
| 681 __ pop_ptr(rdx); | |
| 682 // eax: index | |
| 683 // rdx: array | |
| 684 index_check(rdx, rax); // kills rbx | |
| 685 __ load_signed_byte(rax, | |
| 686 Address(rdx, rax, | |
| 687 Address::times_1, | |
| 688 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
| 689 } | |
| 690 | |
| 691 void TemplateTable::caload() { | |
| 692 transition(itos, itos); | |
| 693 __ pop_ptr(rdx); | |
| 694 // eax: index | |
| 695 // rdx: array | |
| 696 index_check(rdx, rax); // kills rbx | |
|
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697 __ load_unsigned_short(rax, |
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698 Address(rdx, rax, |
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699 Address::times_2, |
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700 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 701 } |
| 702 | |
| 703 // iload followed by caload frequent pair | |
| 704 void TemplateTable::fast_icaload() { | |
| 705 transition(vtos, itos); | |
| 706 // load index out of locals | |
| 707 locals_index(rbx); | |
| 708 __ movl(rax, iaddress(rbx)); | |
| 709 | |
| 710 // eax: index | |
| 711 // rdx: array | |
| 712 __ pop_ptr(rdx); | |
| 713 index_check(rdx, rax); // kills rbx | |
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714 __ load_unsigned_short(rax, |
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715 Address(rdx, rax, |
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716 Address::times_2, |
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717 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 718 } |
| 719 | |
| 720 void TemplateTable::saload() { | |
| 721 transition(itos, itos); | |
| 722 __ pop_ptr(rdx); | |
| 723 // eax: index | |
| 724 // rdx: array | |
| 725 index_check(rdx, rax); // kills rbx | |
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726 __ load_signed_short(rax, |
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727 Address(rdx, rax, |
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728 Address::times_2, |
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729 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
| 0 | 730 } |
| 731 | |
| 732 void TemplateTable::iload(int n) { | |
| 733 transition(vtos, itos); | |
| 734 __ movl(rax, iaddress(n)); | |
| 735 } | |
| 736 | |
| 737 void TemplateTable::lload(int n) { | |
| 738 transition(vtos, ltos); | |
| 739 __ movq(rax, laddress(n)); | |
| 740 } | |
| 741 | |
| 742 void TemplateTable::fload(int n) { | |
| 743 transition(vtos, ftos); | |
| 744 __ movflt(xmm0, faddress(n)); | |
| 745 } | |
| 746 | |
| 747 void TemplateTable::dload(int n) { | |
| 748 transition(vtos, dtos); | |
| 749 __ movdbl(xmm0, daddress(n)); | |
| 750 } | |
| 751 | |
| 752 void TemplateTable::aload(int n) { | |
| 753 transition(vtos, atos); | |
| 304 | 754 __ movptr(rax, aaddress(n)); |
| 0 | 755 } |
| 756 | |
| 757 void TemplateTable::aload_0() { | |
| 758 transition(vtos, atos); | |
| 759 // According to bytecode histograms, the pairs: | |
| 760 // | |
| 761 // _aload_0, _fast_igetfield | |
| 762 // _aload_0, _fast_agetfield | |
| 763 // _aload_0, _fast_fgetfield | |
| 764 // | |
| 765 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
| 766 // _aload_0 bytecode checks if the next bytecode is either | |
| 767 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
| 768 // rewrites the current bytecode into a pair bytecode; otherwise it | |
| 769 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
| 770 // the pair check anymore. | |
| 771 // | |
| 772 // Note: If the next bytecode is _getfield, the rewrite must be | |
| 773 // delayed, otherwise we may miss an opportunity for a pair. | |
| 774 // | |
| 775 // Also rewrite frequent pairs | |
| 776 // aload_0, aload_1 | |
| 777 // aload_0, iload_1 | |
| 778 // These bytecodes with a small amount of code are most profitable | |
| 779 // to rewrite | |
| 780 if (RewriteFrequentPairs) { | |
| 781 Label rewrite, done; | |
| 782 const Register bc = c_rarg3; | |
| 783 assert(rbx != bc, "register damaged"); | |
| 784 // get next byte | |
| 785 __ load_unsigned_byte(rbx, | |
| 786 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
| 787 | |
| 788 // do actual aload_0 | |
| 789 aload(0); | |
| 790 | |
| 791 // if _getfield then wait with rewrite | |
| 792 __ cmpl(rbx, Bytecodes::_getfield); | |
| 793 __ jcc(Assembler::equal, done); | |
| 794 | |
| 795 // if _igetfield then reqrite to _fast_iaccess_0 | |
| 796 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
| 797 Bytecodes::_aload_0, | |
| 798 "fix bytecode definition"); | |
| 799 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
| 800 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
| 801 __ jccb(Assembler::equal, rewrite); | |
| 802 | |
| 803 // if _agetfield then reqrite to _fast_aaccess_0 | |
| 804 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
| 805 Bytecodes::_aload_0, | |
| 806 "fix bytecode definition"); | |
| 807 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
| 808 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
| 809 __ jccb(Assembler::equal, rewrite); | |
| 810 | |
| 811 // if _fgetfield then reqrite to _fast_faccess_0 | |
| 812 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
| 813 Bytecodes::_aload_0, | |
| 814 "fix bytecode definition"); | |
| 815 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
| 816 __ movl(bc, Bytecodes::_fast_faccess_0); | |
| 817 __ jccb(Assembler::equal, rewrite); | |
| 818 | |
| 819 // else rewrite to _fast_aload0 | |
| 820 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
| 821 Bytecodes::_aload_0, | |
| 822 "fix bytecode definition"); | |
| 823 __ movl(bc, Bytecodes::_fast_aload_0); | |
| 824 | |
| 825 // rewrite | |
| 826 // bc: fast bytecode | |
| 827 __ bind(rewrite); | |
| 828 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
| 829 | |
| 830 __ bind(done); | |
| 831 } else { | |
| 832 aload(0); | |
| 833 } | |
| 834 } | |
| 835 | |
| 836 void TemplateTable::istore() { | |
| 837 transition(itos, vtos); | |
| 838 locals_index(rbx); | |
| 839 __ movl(iaddress(rbx), rax); | |
| 840 } | |
| 841 | |
| 842 void TemplateTable::lstore() { | |
| 843 transition(ltos, vtos); | |
| 844 locals_index(rbx); | |
| 845 __ movq(laddress(rbx), rax); | |
| 846 } | |
| 847 | |
| 848 void TemplateTable::fstore() { | |
| 849 transition(ftos, vtos); | |
| 850 locals_index(rbx); | |
| 851 __ movflt(faddress(rbx), xmm0); | |
| 852 } | |
| 853 | |
| 854 void TemplateTable::dstore() { | |
| 855 transition(dtos, vtos); | |
| 856 locals_index(rbx); | |
| 857 __ movdbl(daddress(rbx), xmm0); | |
| 858 } | |
| 859 | |
| 860 void TemplateTable::astore() { | |
| 861 transition(vtos, vtos); | |
| 1506 | 862 __ pop_ptr(rax); |
| 0 | 863 locals_index(rbx); |
| 304 | 864 __ movptr(aaddress(rbx), rax); |
| 0 | 865 } |
| 866 | |
| 867 void TemplateTable::wide_istore() { | |
| 868 transition(vtos, vtos); | |
| 869 __ pop_i(); | |
| 870 locals_index_wide(rbx); | |
| 871 __ movl(iaddress(rbx), rax); | |
| 872 } | |
| 873 | |
| 874 void TemplateTable::wide_lstore() { | |
| 875 transition(vtos, vtos); | |
| 876 __ pop_l(); | |
| 877 locals_index_wide(rbx); | |
| 878 __ movq(laddress(rbx), rax); | |
| 879 } | |
| 880 | |
| 881 void TemplateTable::wide_fstore() { | |
| 882 transition(vtos, vtos); | |
| 883 __ pop_f(); | |
| 884 locals_index_wide(rbx); | |
| 885 __ movflt(faddress(rbx), xmm0); | |
| 886 } | |
| 887 | |
| 888 void TemplateTable::wide_dstore() { | |
| 889 transition(vtos, vtos); | |
| 890 __ pop_d(); | |
| 891 locals_index_wide(rbx); | |
| 892 __ movdbl(daddress(rbx), xmm0); | |
| 893 } | |
| 894 | |
| 895 void TemplateTable::wide_astore() { | |
| 896 transition(vtos, vtos); | |
| 1506 | 897 __ pop_ptr(rax); |
| 0 | 898 locals_index_wide(rbx); |
| 304 | 899 __ movptr(aaddress(rbx), rax); |
| 0 | 900 } |
| 901 | |
| 902 void TemplateTable::iastore() { | |
| 903 transition(itos, vtos); | |
| 904 __ pop_i(rbx); | |
| 905 __ pop_ptr(rdx); | |
| 906 // eax: value | |
| 907 // ebx: index | |
| 908 // rdx: array | |
| 909 index_check(rdx, rbx); // prefer index in ebx | |
| 910 __ movl(Address(rdx, rbx, | |
| 911 Address::times_4, | |
| 912 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
| 913 rax); | |
| 914 } | |
| 915 | |
| 916 void TemplateTable::lastore() { | |
| 917 transition(ltos, vtos); | |
| 918 __ pop_i(rbx); | |
| 919 __ pop_ptr(rdx); | |
| 920 // rax: value | |
| 921 // ebx: index | |
| 922 // rdx: array | |
| 923 index_check(rdx, rbx); // prefer index in ebx | |
| 924 __ movq(Address(rdx, rbx, | |
| 925 Address::times_8, | |
| 926 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
| 927 rax); | |
| 928 } | |
| 929 | |
| 930 void TemplateTable::fastore() { | |
| 931 transition(ftos, vtos); | |
| 932 __ pop_i(rbx); | |
| 933 __ pop_ptr(rdx); | |
| 934 // xmm0: value | |
| 935 // ebx: index | |
| 936 // rdx: array | |
| 937 index_check(rdx, rbx); // prefer index in ebx | |
| 938 __ movflt(Address(rdx, rbx, | |
| 939 Address::times_4, | |
| 940 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
| 941 xmm0); | |
| 942 } | |
| 943 | |
| 944 void TemplateTable::dastore() { | |
| 945 transition(dtos, vtos); | |
| 946 __ pop_i(rbx); | |
| 947 __ pop_ptr(rdx); | |
| 948 // xmm0: value | |
| 949 // ebx: index | |
| 950 // rdx: array | |
| 951 index_check(rdx, rbx); // prefer index in ebx | |
| 952 __ movdbl(Address(rdx, rbx, | |
| 953 Address::times_8, | |
| 954 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
| 955 xmm0); | |
| 956 } | |
| 957 | |
| 958 void TemplateTable::aastore() { | |
| 959 Label is_null, ok_is_subtype, done; | |
| 960 transition(vtos, vtos); | |
| 961 // stack: ..., array, index, value | |
| 304 | 962 __ movptr(rax, at_tos()); // value |
| 0 | 963 __ movl(rcx, at_tos_p1()); // index |
| 304 | 964 __ movptr(rdx, at_tos_p2()); // array |
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965 |
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966 Address element_address(rdx, rcx, |
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967 UseCompressedOops? Address::times_4 : Address::times_8, |
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968 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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969 |
| 0 | 970 index_check(rdx, rcx); // kills rbx |
| 971 // do array store check - check for NULL value first | |
| 304 | 972 __ testptr(rax, rax); |
| 0 | 973 __ jcc(Assembler::zero, is_null); |
| 974 | |
| 975 // Move subklass into rbx | |
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976 __ load_klass(rbx, rax); |
| 0 | 977 // Move superklass into rax |
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978 __ load_klass(rax, rdx); |
| 304 | 979 __ movptr(rax, Address(rax, |
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980 ObjArrayKlass::element_klass_offset())); |
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981 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
| 362 | 982 __ lea(rdx, element_address); |
| 0 | 983 |
| 984 // Generate subtype check. Blows rcx, rdi | |
| 985 // Superklass in rax. Subklass in rbx. | |
| 986 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 987 | |
| 988 // Come here on failure | |
| 989 // object is at TOS | |
| 990 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
| 991 | |
| 992 // Come here on success | |
| 993 __ bind(ok_is_subtype); | |
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994 |
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995 // Get the value we will store |
| 362 | 996 __ movptr(rax, at_tos()); |
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997 // Now store using the appropriate barrier |
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998 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
| 0 | 999 __ jmp(done); |
| 1000 | |
| 1001 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
| 1002 __ bind(is_null); | |
| 1003 __ profile_null_seen(rbx); | |
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1004 |
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1005 // Store a NULL |
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1006 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
| 0 | 1007 |
| 1008 // Pop stack arguments | |
| 1009 __ bind(done); | |
| 1506 | 1010 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
| 0 | 1011 } |
| 1012 | |
| 1013 void TemplateTable::bastore() { | |
| 1014 transition(itos, vtos); | |
| 1015 __ pop_i(rbx); | |
| 1016 __ pop_ptr(rdx); | |
| 1017 // eax: value | |
| 1018 // ebx: index | |
| 1019 // rdx: array | |
| 1020 index_check(rdx, rbx); // prefer index in ebx | |
| 1021 __ movb(Address(rdx, rbx, | |
| 1022 Address::times_1, | |
| 1023 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
| 1024 rax); | |
| 1025 } | |
| 1026 | |
| 1027 void TemplateTable::castore() { | |
| 1028 transition(itos, vtos); | |
| 1029 __ pop_i(rbx); | |
| 1030 __ pop_ptr(rdx); | |
| 1031 // eax: value | |
| 1032 // ebx: index | |
| 1033 // rdx: array | |
| 1034 index_check(rdx, rbx); // prefer index in ebx | |
| 1035 __ movw(Address(rdx, rbx, | |
| 1036 Address::times_2, | |
| 1037 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
| 1038 rax); | |
| 1039 } | |
| 1040 | |
| 1041 void TemplateTable::sastore() { | |
| 1042 castore(); | |
| 1043 } | |
| 1044 | |
| 1045 void TemplateTable::istore(int n) { | |
| 1046 transition(itos, vtos); | |
| 1047 __ movl(iaddress(n), rax); | |
| 1048 } | |
| 1049 | |
| 1050 void TemplateTable::lstore(int n) { | |
| 1051 transition(ltos, vtos); | |
| 1052 __ movq(laddress(n), rax); | |
| 1053 } | |
| 1054 | |
| 1055 void TemplateTable::fstore(int n) { | |
| 1056 transition(ftos, vtos); | |
| 1057 __ movflt(faddress(n), xmm0); | |
| 1058 } | |
| 1059 | |
| 1060 void TemplateTable::dstore(int n) { | |
| 1061 transition(dtos, vtos); | |
| 1062 __ movdbl(daddress(n), xmm0); | |
| 1063 } | |
| 1064 | |
| 1065 void TemplateTable::astore(int n) { | |
| 1066 transition(vtos, vtos); | |
| 1506 | 1067 __ pop_ptr(rax); |
| 304 | 1068 __ movptr(aaddress(n), rax); |
| 0 | 1069 } |
| 1070 | |
| 1071 void TemplateTable::pop() { | |
| 1072 transition(vtos, vtos); | |
| 1506 | 1073 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1074 } |
| 1075 | |
| 1076 void TemplateTable::pop2() { | |
| 1077 transition(vtos, vtos); | |
| 1506 | 1078 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1079 } |
| 1080 | |
| 1081 void TemplateTable::dup() { | |
| 1082 transition(vtos, vtos); | |
| 1506 | 1083 __ load_ptr(0, rax); |
| 1084 __ push_ptr(rax); | |
| 0 | 1085 // stack: ..., a, a |
| 1086 } | |
| 1087 | |
| 1088 void TemplateTable::dup_x1() { | |
| 1089 transition(vtos, vtos); | |
| 1090 // stack: ..., a, b | |
| 1506 | 1091 __ load_ptr( 0, rax); // load b |
| 1092 __ load_ptr( 1, rcx); // load a | |
| 1093 __ store_ptr(1, rax); // store b | |
| 1094 __ store_ptr(0, rcx); // store a | |
| 1095 __ push_ptr(rax); // push b | |
| 0 | 1096 // stack: ..., b, a, b |
| 1097 } | |
| 1098 | |
| 1099 void TemplateTable::dup_x2() { | |
| 1100 transition(vtos, vtos); | |
| 1101 // stack: ..., a, b, c | |
| 1506 | 1102 __ load_ptr( 0, rax); // load c |
| 1103 __ load_ptr( 2, rcx); // load a | |
| 1104 __ store_ptr(2, rax); // store c in a | |
| 1105 __ push_ptr(rax); // push c | |
| 0 | 1106 // stack: ..., c, b, c, c |
| 1506 | 1107 __ load_ptr( 2, rax); // load b |
| 1108 __ store_ptr(2, rcx); // store a in b | |
| 0 | 1109 // stack: ..., c, a, c, c |
| 1506 | 1110 __ store_ptr(1, rax); // store b in c |
| 0 | 1111 // stack: ..., c, a, b, c |
| 1112 } | |
| 1113 | |
| 1114 void TemplateTable::dup2() { | |
| 1115 transition(vtos, vtos); | |
| 1116 // stack: ..., a, b | |
| 1506 | 1117 __ load_ptr(1, rax); // load a |
| 1118 __ push_ptr(rax); // push a | |
| 1119 __ load_ptr(1, rax); // load b | |
| 1120 __ push_ptr(rax); // push b | |
| 0 | 1121 // stack: ..., a, b, a, b |
| 1122 } | |
| 1123 | |
| 1124 void TemplateTable::dup2_x1() { | |
| 1125 transition(vtos, vtos); | |
| 1126 // stack: ..., a, b, c | |
| 1506 | 1127 __ load_ptr( 0, rcx); // load c |
| 1128 __ load_ptr( 1, rax); // load b | |
| 1129 __ push_ptr(rax); // push b | |
| 1130 __ push_ptr(rcx); // push c | |
| 0 | 1131 // stack: ..., a, b, c, b, c |
| 1506 | 1132 __ store_ptr(3, rcx); // store c in b |
| 0 | 1133 // stack: ..., a, c, c, b, c |
| 1506 | 1134 __ load_ptr( 4, rcx); // load a |
| 1135 __ store_ptr(2, rcx); // store a in 2nd c | |
| 0 | 1136 // stack: ..., a, c, a, b, c |
| 1506 | 1137 __ store_ptr(4, rax); // store b in a |
| 0 | 1138 // stack: ..., b, c, a, b, c |
| 1139 } | |
| 1140 | |
| 1141 void TemplateTable::dup2_x2() { | |
| 1142 transition(vtos, vtos); | |
| 1143 // stack: ..., a, b, c, d | |
| 1506 | 1144 __ load_ptr( 0, rcx); // load d |
| 1145 __ load_ptr( 1, rax); // load c | |
| 1146 __ push_ptr(rax); // push c | |
| 1147 __ push_ptr(rcx); // push d | |
| 0 | 1148 // stack: ..., a, b, c, d, c, d |
| 1506 | 1149 __ load_ptr( 4, rax); // load b |
| 1150 __ store_ptr(2, rax); // store b in d | |
| 1151 __ store_ptr(4, rcx); // store d in b | |
| 0 | 1152 // stack: ..., a, d, c, b, c, d |
| 1506 | 1153 __ load_ptr( 5, rcx); // load a |
| 1154 __ load_ptr( 3, rax); // load c | |
| 1155 __ store_ptr(3, rcx); // store a in c | |
| 1156 __ store_ptr(5, rax); // store c in a | |
| 0 | 1157 // stack: ..., c, d, a, b, c, d |
| 1158 } | |
| 1159 | |
| 1160 void TemplateTable::swap() { | |
| 1161 transition(vtos, vtos); | |
| 1162 // stack: ..., a, b | |
| 1506 | 1163 __ load_ptr( 1, rcx); // load a |
| 1164 __ load_ptr( 0, rax); // load b | |
| 1165 __ store_ptr(0, rcx); // store a in b | |
| 1166 __ store_ptr(1, rax); // store b in a | |
| 0 | 1167 // stack: ..., b, a |
| 1168 } | |
| 1169 | |
| 1170 void TemplateTable::iop2(Operation op) { | |
| 1171 transition(itos, itos); | |
| 1172 switch (op) { | |
| 1173 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
| 1174 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
| 1175 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
| 1176 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
| 1177 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
| 1178 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
| 1179 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
| 1180 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
| 1181 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
| 1182 default : ShouldNotReachHere(); | |
| 1183 } | |
| 1184 } | |
| 1185 | |
| 1186 void TemplateTable::lop2(Operation op) { | |
| 1187 transition(ltos, ltos); | |
| 1188 switch (op) { | |
| 1506 | 1189 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
| 1190 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
| 1191 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
| 1192 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
| 1193 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
| 1194 default : ShouldNotReachHere(); | |
| 0 | 1195 } |
| 1196 } | |
| 1197 | |
| 1198 void TemplateTable::idiv() { | |
| 1199 transition(itos, itos); | |
| 1200 __ movl(rcx, rax); | |
| 1201 __ pop_i(rax); | |
| 1202 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1203 // they are not equal, one could do a normal division (no correction | |
| 1204 // needed), which may speed up this implementation for the common case. | |
| 1205 // (see also JVM spec., p.243 & p.271) | |
| 1206 __ corrected_idivl(rcx); | |
| 1207 } | |
| 1208 | |
| 1209 void TemplateTable::irem() { | |
| 1210 transition(itos, itos); | |
| 1211 __ movl(rcx, rax); | |
| 1212 __ pop_i(rax); | |
| 1213 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1214 // they are not equal, one could do a normal division (no correction | |
| 1215 // needed), which may speed up this implementation for the common case. | |
| 1216 // (see also JVM spec., p.243 & p.271) | |
| 1217 __ corrected_idivl(rcx); | |
| 1218 __ movl(rax, rdx); | |
| 1219 } | |
| 1220 | |
| 1221 void TemplateTable::lmul() { | |
| 1222 transition(ltos, ltos); | |
| 1223 __ pop_l(rdx); | |
| 1224 __ imulq(rax, rdx); | |
| 1225 } | |
| 1226 | |
| 1227 void TemplateTable::ldiv() { | |
| 1228 transition(ltos, ltos); | |
| 304 | 1229 __ mov(rcx, rax); |
| 0 | 1230 __ pop_l(rax); |
| 1231 // generate explicit div0 check | |
| 1232 __ testq(rcx, rcx); | |
| 1233 __ jump_cc(Assembler::zero, | |
| 1234 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1235 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1236 // they are not equal, one could do a normal division (no correction | |
| 1237 // needed), which may speed up this implementation for the common case. | |
| 1238 // (see also JVM spec., p.243 & p.271) | |
| 1239 __ corrected_idivq(rcx); // kills rbx | |
| 1240 } | |
| 1241 | |
| 1242 void TemplateTable::lrem() { | |
| 1243 transition(ltos, ltos); | |
| 304 | 1244 __ mov(rcx, rax); |
| 0 | 1245 __ pop_l(rax); |
| 1246 __ testq(rcx, rcx); | |
| 1247 __ jump_cc(Assembler::zero, | |
| 1248 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1249 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1250 // they are not equal, one could do a normal division (no correction | |
| 1251 // needed), which may speed up this implementation for the common case. | |
| 1252 // (see also JVM spec., p.243 & p.271) | |
| 1253 __ corrected_idivq(rcx); // kills rbx | |
| 304 | 1254 __ mov(rax, rdx); |
| 0 | 1255 } |
| 1256 | |
| 1257 void TemplateTable::lshl() { | |
| 1258 transition(itos, ltos); | |
| 1259 __ movl(rcx, rax); // get shift count | |
| 1260 __ pop_l(rax); // get shift value | |
| 1261 __ shlq(rax); | |
| 1262 } | |
| 1263 | |
| 1264 void TemplateTable::lshr() { | |
| 1265 transition(itos, ltos); | |
| 1266 __ movl(rcx, rax); // get shift count | |
| 1267 __ pop_l(rax); // get shift value | |
| 1268 __ sarq(rax); | |
| 1269 } | |
| 1270 | |
| 1271 void TemplateTable::lushr() { | |
| 1272 transition(itos, ltos); | |
| 1273 __ movl(rcx, rax); // get shift count | |
| 1274 __ pop_l(rax); // get shift value | |
| 1275 __ shrq(rax); | |
| 1276 } | |
| 1277 | |
| 1278 void TemplateTable::fop2(Operation op) { | |
| 1279 transition(ftos, ftos); | |
| 1280 switch (op) { | |
| 1281 case add: | |
| 1282 __ addss(xmm0, at_rsp()); | |
| 1506 | 1283 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1284 break; |
| 1285 case sub: | |
| 1286 __ movflt(xmm1, xmm0); | |
| 1287 __ pop_f(xmm0); | |
| 1288 __ subss(xmm0, xmm1); | |
| 1289 break; | |
| 1290 case mul: | |
| 1291 __ mulss(xmm0, at_rsp()); | |
| 1506 | 1292 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1293 break; |
| 1294 case div: | |
| 1295 __ movflt(xmm1, xmm0); | |
| 1296 __ pop_f(xmm0); | |
| 1297 __ divss(xmm0, xmm1); | |
| 1298 break; | |
| 1299 case rem: | |
| 1300 __ movflt(xmm1, xmm0); | |
| 1301 __ pop_f(xmm0); | |
| 1302 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
| 1303 break; | |
| 1304 default: | |
| 1305 ShouldNotReachHere(); | |
| 1306 break; | |
| 1307 } | |
| 1308 } | |
| 1309 | |
| 1310 void TemplateTable::dop2(Operation op) { | |
| 1311 transition(dtos, dtos); | |
| 1312 switch (op) { | |
| 1313 case add: | |
| 1314 __ addsd(xmm0, at_rsp()); | |
| 1506 | 1315 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1316 break; |
| 1317 case sub: | |
| 1318 __ movdbl(xmm1, xmm0); | |
| 1319 __ pop_d(xmm0); | |
| 1320 __ subsd(xmm0, xmm1); | |
| 1321 break; | |
| 1322 case mul: | |
| 1323 __ mulsd(xmm0, at_rsp()); | |
| 1506 | 1324 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1325 break; |
| 1326 case div: | |
| 1327 __ movdbl(xmm1, xmm0); | |
| 1328 __ pop_d(xmm0); | |
| 1329 __ divsd(xmm0, xmm1); | |
| 1330 break; | |
| 1331 case rem: | |
| 1332 __ movdbl(xmm1, xmm0); | |
| 1333 __ pop_d(xmm0); | |
| 1334 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
| 1335 break; | |
| 1336 default: | |
| 1337 ShouldNotReachHere(); | |
| 1338 break; | |
| 1339 } | |
| 1340 } | |
| 1341 | |
| 1342 void TemplateTable::ineg() { | |
| 1343 transition(itos, itos); | |
| 1344 __ negl(rax); | |
| 1345 } | |
| 1346 | |
| 1347 void TemplateTable::lneg() { | |
| 1348 transition(ltos, ltos); | |
| 1349 __ negq(rax); | |
| 1350 } | |
| 1351 | |
| 1352 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
| 1353 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
| 1354 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
| 1355 // of 128-bits operands for SSE instructions. | |
| 1356 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
| 1357 // Store the value to a 128-bits operand. | |
| 1358 operand[0] = lo; | |
| 1359 operand[1] = hi; | |
| 1360 return operand; | |
| 1361 } | |
| 1362 | |
| 1363 // Buffer for 128-bits masks used by SSE instructions. | |
| 1364 static jlong float_signflip_pool[2*2]; | |
| 1365 static jlong double_signflip_pool[2*2]; | |
| 1366 | |
| 1367 void TemplateTable::fneg() { | |
| 1368 transition(ftos, ftos); | |
| 1369 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
| 1370 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
| 1371 } | |
| 1372 | |
| 1373 void TemplateTable::dneg() { | |
| 1374 transition(dtos, dtos); | |
| 1375 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
| 1376 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
| 1377 } | |
| 1378 | |
| 1379 void TemplateTable::iinc() { | |
| 1380 transition(vtos, vtos); | |
| 1381 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
| 1382 locals_index(rbx); | |
| 1383 __ addl(iaddress(rbx), rdx); | |
| 1384 } | |
| 1385 | |
| 1386 void TemplateTable::wide_iinc() { | |
| 1387 transition(vtos, vtos); | |
| 1388 __ movl(rdx, at_bcp(4)); // get constant | |
| 1389 locals_index_wide(rbx); | |
| 1390 __ bswapl(rdx); // swap bytes & sign-extend constant | |
| 1391 __ sarl(rdx, 16); | |
| 1392 __ addl(iaddress(rbx), rdx); | |
| 1393 // Note: should probably use only one movl to get both | |
| 1394 // the index and the constant -> fix this | |
| 1395 } | |
| 1396 | |
| 1397 void TemplateTable::convert() { | |
| 1398 // Checking | |
| 1399 #ifdef ASSERT | |
| 1400 { | |
| 1401 TosState tos_in = ilgl; | |
| 1402 TosState tos_out = ilgl; | |
| 1403 switch (bytecode()) { | |
| 1404 case Bytecodes::_i2l: // fall through | |
| 1405 case Bytecodes::_i2f: // fall through | |
| 1406 case Bytecodes::_i2d: // fall through | |
| 1407 case Bytecodes::_i2b: // fall through | |
| 1408 case Bytecodes::_i2c: // fall through | |
| 1409 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1410 case Bytecodes::_l2i: // fall through | |
| 1411 case Bytecodes::_l2f: // fall through | |
| 1412 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1413 case Bytecodes::_f2i: // fall through | |
| 1414 case Bytecodes::_f2l: // fall through | |
| 1415 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1416 case Bytecodes::_d2i: // fall through | |
| 1417 case Bytecodes::_d2l: // fall through | |
| 1418 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1419 default : ShouldNotReachHere(); | |
| 1420 } | |
| 1421 switch (bytecode()) { | |
| 1422 case Bytecodes::_l2i: // fall through | |
| 1423 case Bytecodes::_f2i: // fall through | |
| 1424 case Bytecodes::_d2i: // fall through | |
| 1425 case Bytecodes::_i2b: // fall through | |
| 1426 case Bytecodes::_i2c: // fall through | |
| 1427 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1428 case Bytecodes::_i2l: // fall through | |
| 1429 case Bytecodes::_f2l: // fall through | |
| 1430 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1431 case Bytecodes::_i2f: // fall through | |
| 1432 case Bytecodes::_l2f: // fall through | |
| 1433 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1434 case Bytecodes::_i2d: // fall through | |
| 1435 case Bytecodes::_l2d: // fall through | |
| 1436 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1437 default : ShouldNotReachHere(); | |
| 1438 } | |
| 1439 transition(tos_in, tos_out); | |
| 1440 } | |
| 1441 #endif // ASSERT | |
| 1442 | |
| 1443 static const int64_t is_nan = 0x8000000000000000L; | |
| 1444 | |
| 1445 // Conversion | |
| 1446 switch (bytecode()) { | |
| 1447 case Bytecodes::_i2l: | |
| 1448 __ movslq(rax, rax); | |
| 1449 break; | |
| 1450 case Bytecodes::_i2f: | |
| 1451 __ cvtsi2ssl(xmm0, rax); | |
| 1452 break; | |
| 1453 case Bytecodes::_i2d: | |
| 1454 __ cvtsi2sdl(xmm0, rax); | |
| 1455 break; | |
| 1456 case Bytecodes::_i2b: | |
| 1457 __ movsbl(rax, rax); | |
| 1458 break; | |
| 1459 case Bytecodes::_i2c: | |
| 1460 __ movzwl(rax, rax); | |
| 1461 break; | |
| 1462 case Bytecodes::_i2s: | |
| 1463 __ movswl(rax, rax); | |
| 1464 break; | |
| 1465 case Bytecodes::_l2i: | |
| 1466 __ movl(rax, rax); | |
| 1467 break; | |
| 1468 case Bytecodes::_l2f: | |
| 1469 __ cvtsi2ssq(xmm0, rax); | |
| 1470 break; | |
| 1471 case Bytecodes::_l2d: | |
| 1472 __ cvtsi2sdq(xmm0, rax); | |
| 1473 break; | |
| 1474 case Bytecodes::_f2i: | |
| 1475 { | |
| 1476 Label L; | |
| 1477 __ cvttss2sil(rax, xmm0); | |
| 1478 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1479 __ jcc(Assembler::notEqual, L); | |
| 1480 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
| 1481 __ bind(L); | |
| 1482 } | |
| 1483 break; | |
| 1484 case Bytecodes::_f2l: | |
| 1485 { | |
| 1486 Label L; | |
| 1487 __ cvttss2siq(rax, xmm0); | |
| 1488 // NaN or overflow/underflow? | |
| 1489 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1490 __ jcc(Assembler::notEqual, L); | |
| 1491 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
| 1492 __ bind(L); | |
| 1493 } | |
| 1494 break; | |
| 1495 case Bytecodes::_f2d: | |
| 1496 __ cvtss2sd(xmm0, xmm0); | |
| 1497 break; | |
| 1498 case Bytecodes::_d2i: | |
| 1499 { | |
| 1500 Label L; | |
| 1501 __ cvttsd2sil(rax, xmm0); | |
| 1502 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1503 __ jcc(Assembler::notEqual, L); | |
| 1504 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
| 1505 __ bind(L); | |
| 1506 } | |
| 1507 break; | |
| 1508 case Bytecodes::_d2l: | |
| 1509 { | |
| 1510 Label L; | |
| 1511 __ cvttsd2siq(rax, xmm0); | |
| 1512 // NaN or overflow/underflow? | |
| 1513 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1514 __ jcc(Assembler::notEqual, L); | |
| 1515 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
| 1516 __ bind(L); | |
| 1517 } | |
| 1518 break; | |
| 1519 case Bytecodes::_d2f: | |
| 1520 __ cvtsd2ss(xmm0, xmm0); | |
| 1521 break; | |
| 1522 default: | |
| 1523 ShouldNotReachHere(); | |
| 1524 } | |
| 1525 } | |
| 1526 | |
| 1527 void TemplateTable::lcmp() { | |
| 1528 transition(ltos, itos); | |
| 1529 Label done; | |
| 1530 __ pop_l(rdx); | |
| 1531 __ cmpq(rdx, rax); | |
| 1532 __ movl(rax, -1); | |
| 1533 __ jccb(Assembler::less, done); | |
| 1534 __ setb(Assembler::notEqual, rax); | |
| 1535 __ movzbl(rax, rax); | |
| 1536 __ bind(done); | |
| 1537 } | |
| 1538 | |
| 1539 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1540 Label done; | |
| 1541 if (is_float) { | |
| 1542 // XXX get rid of pop here, use ... reg, mem32 | |
| 1543 __ pop_f(xmm1); | |
| 1544 __ ucomiss(xmm1, xmm0); | |
| 1545 } else { | |
| 1546 // XXX get rid of pop here, use ... reg, mem64 | |
| 1547 __ pop_d(xmm1); | |
| 1548 __ ucomisd(xmm1, xmm0); | |
| 1549 } | |
| 1550 if (unordered_result < 0) { | |
| 1551 __ movl(rax, -1); | |
| 1552 __ jccb(Assembler::parity, done); | |
| 1553 __ jccb(Assembler::below, done); | |
| 1554 __ setb(Assembler::notEqual, rdx); | |
| 1555 __ movzbl(rax, rdx); | |
| 1556 } else { | |
| 1557 __ movl(rax, 1); | |
| 1558 __ jccb(Assembler::parity, done); | |
| 1559 __ jccb(Assembler::above, done); | |
| 1560 __ movl(rax, 0); | |
| 1561 __ jccb(Assembler::equal, done); | |
| 1562 __ decrementl(rax); | |
| 1563 } | |
| 1564 __ bind(done); | |
| 1565 } | |
| 1566 | |
| 1567 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1568 __ get_method(rcx); // rcx holds method | |
| 1569 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
| 1570 // holds bumped taken count | |
| 1571 | |
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1572 const ByteSize be_offset = MethodCounters::backedge_counter_offset() + |
| 0 | 1573 InvocationCounter::counter_offset(); |
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1574 const ByteSize inv_offset = MethodCounters::invocation_counter_offset() + |
| 0 | 1575 InvocationCounter::counter_offset(); |
| 1576 | |
| 1577 // Load up edx with the branch displacement | |
| 1578 __ movl(rdx, at_bcp(1)); | |
| 1579 __ bswapl(rdx); | |
| 1580 | |
| 1581 if (!is_wide) { | |
| 1582 __ sarl(rdx, 16); | |
| 1583 } | |
| 304 | 1584 __ movl2ptr(rdx, rdx); |
| 0 | 1585 |
| 1586 // Handle all the JSR stuff here, then exit. | |
| 1587 // It's much shorter and cleaner than intermingling with the non-JSR | |
| 605 | 1588 // normal-branch stuff occurring below. |
| 0 | 1589 if (is_jsr) { |
| 1590 // Pre-load the next target bytecode into rbx | |
| 1591 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
| 1592 | |
| 1593 // compute return address as bci in rax | |
| 304 | 1594 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1595 in_bytes(ConstMethod::codes_offset()))); |
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1596 __ subptr(rax, Address(rcx, Method::const_offset())); |
| 0 | 1597 // Adjust the bcp in r13 by the displacement in rdx |
| 304 | 1598 __ addptr(r13, rdx); |
| 0 | 1599 // jsr returns atos that is not an oop |
| 1600 __ push_i(rax); | |
| 1601 __ dispatch_only(vtos); | |
| 1602 return; | |
| 1603 } | |
| 1604 | |
| 1605 // Normal (non-jsr) branch handling | |
| 1606 | |
| 1607 // Adjust the bcp in r13 by the displacement in rdx | |
| 304 | 1608 __ addptr(r13, rdx); |
| 0 | 1609 |
| 1610 assert(UseLoopCounter || !UseOnStackReplacement, | |
| 1611 "on-stack-replacement requires loop counters"); | |
| 1612 Label backedge_counter_overflow; | |
| 1613 Label profile_method; | |
| 1614 Label dispatch; | |
| 1615 if (UseLoopCounter) { | |
| 1616 // increment backedge counter for backward branches | |
| 1617 // rax: MDO | |
| 1618 // ebx: MDO bumped taken-count | |
| 1619 // rcx: method | |
| 1620 // rdx: target offset | |
| 1621 // r13: target bcp | |
| 1622 // r14: locals pointer | |
| 1623 __ testl(rdx, rdx); // check if forward or backward branch | |
| 1624 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
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1625 |
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1626 // check if MethodCounters exists |
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1627 Label has_counters; |
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1628 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1629 __ testptr(rax, rax); |
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1630 __ jcc(Assembler::notZero, has_counters); |
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1631 __ push(rdx); |
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1632 __ push(rcx); |
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1633 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::build_method_counters), |
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1634 rcx); |
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1635 __ pop(rcx); |
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1636 __ pop(rdx); |
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1637 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1638 __ jcc(Assembler::zero, dispatch); |
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1639 __ bind(has_counters); |
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1640 |
| 1783 | 1641 if (TieredCompilation) { |
| 1642 Label no_mdo; | |
| 1643 int increment = InvocationCounter::count_increment; | |
| 1644 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1645 if (ProfileInterpreter) { | |
| 1646 // Are we profiling? | |
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1647 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
| 1783 | 1648 __ testptr(rbx, rbx); |
| 1649 __ jccb(Assembler::zero, no_mdo); | |
| 1650 // Increment the MDO backedge counter | |
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1651 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1652 in_bytes(InvocationCounter::counter_offset())); |
| 1653 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
| 1654 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 1655 __ jmp(dispatch); | |
| 0 | 1656 } |
| 1783 | 1657 __ bind(no_mdo); |
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1658 // Increment backedge counter in MethodCounters* |
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1659 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1660 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
| 1661 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 0 | 1662 } else { |
| 1783 | 1663 // increment counter |
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1664 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1665 __ movl(rax, Address(rcx, be_offset)); // load backedge counter |
| 1666 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
| 1667 __ movl(Address(rcx, be_offset), rax); // store counter | |
| 1668 | |
| 1669 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
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1670 |
| 1783 | 1671 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits |
| 1672 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
| 1673 | |
| 1674 if (ProfileInterpreter) { | |
| 1675 // Test to see if we should create a method data oop | |
| 0 | 1676 __ cmp32(rax, |
| 1783 | 1677 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
| 1678 __ jcc(Assembler::less, dispatch); | |
| 1679 | |
| 1680 // if no method data exists, go to profile method | |
| 1681 __ test_method_data_pointer(rax, profile_method); | |
| 1682 | |
| 1683 if (UseOnStackReplacement) { | |
| 1684 // check for overflow against ebx which is the MDO taken count | |
| 1685 __ cmp32(rbx, | |
| 1686 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1687 __ jcc(Assembler::below, dispatch); | |
| 1688 | |
| 1689 // When ProfileInterpreter is on, the backedge_count comes | |
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1690 // from the MethodData*, which value does not get reset on |
| 1783 | 1691 // the call to frequency_counter_overflow(). To avoid |
| 1692 // excessive calls to the overflow routine while the method is | |
| 1693 // being compiled, add a second test to make sure the overflow | |
| 1694 // function is called only once every overflow_frequency. | |
| 1695 const int overflow_frequency = 1024; | |
| 1696 __ andl(rbx, overflow_frequency - 1); | |
| 1697 __ jcc(Assembler::zero, backedge_counter_overflow); | |
| 1698 | |
| 1699 } | |
| 1700 } else { | |
| 1701 if (UseOnStackReplacement) { | |
| 1702 // check for overflow against eax, which is the sum of the | |
| 1703 // counters | |
| 1704 __ cmp32(rax, | |
| 1705 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1706 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
| 1707 | |
| 1708 } | |
| 0 | 1709 } |
| 1710 } | |
| 1711 __ bind(dispatch); | |
| 1712 } | |
| 1713 | |
| 1714 // Pre-load the next target bytecode into rbx | |
| 1715 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
| 1716 | |
| 1717 // continue with the bytecode @ target | |
| 1718 // eax: return bci for jsr's, unused otherwise | |
| 1719 // ebx: target bytecode | |
| 1720 // r13: target bcp | |
| 1721 __ dispatch_only(vtos); | |
| 1722 | |
| 1723 if (UseLoopCounter) { | |
| 1724 if (ProfileInterpreter) { | |
| 1725 // Out-of-line code to allocate method data oop. | |
| 1726 __ bind(profile_method); | |
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1727 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
| 0 | 1728 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1729 __ set_method_data_pointer_for_bcp(); |
| 0 | 1730 __ jmp(dispatch); |
| 1731 } | |
| 1732 | |
| 1733 if (UseOnStackReplacement) { | |
| 1734 // invocation counter overflow | |
| 1735 __ bind(backedge_counter_overflow); | |
| 304 | 1736 __ negptr(rdx); |
| 1737 __ addptr(rdx, r13); // branch bcp | |
| 0 | 1738 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
| 1739 __ call_VM(noreg, | |
| 1740 CAST_FROM_FN_PTR(address, | |
| 1741 InterpreterRuntime::frequency_counter_overflow), | |
| 1742 rdx); | |
| 1743 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
| 1744 | |
| 1745 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
| 1746 // ebx: target bytecode | |
| 1747 // rdx: scratch | |
| 1748 // r14: locals pointer | |
| 1749 // r13: bcp | |
| 304 | 1750 __ testptr(rax, rax); // test result |
| 0 | 1751 __ jcc(Assembler::zero, dispatch); // no osr if null |
| 1752 // nmethod may have been invalidated (VM may block upon call_VM return) | |
| 1753 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
| 1754 __ cmpl(rcx, InvalidOSREntryBci); | |
| 1755 __ jcc(Assembler::equal, dispatch); | |
| 1756 | |
| 1757 // We have the address of an on stack replacement routine in eax | |
| 1758 // We need to prepare to execute the OSR method. First we must | |
| 1759 // migrate the locals and monitors off of the stack. | |
| 1760 | |
| 304 | 1761 __ mov(r13, rax); // save the nmethod |
| 0 | 1762 |
| 1763 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
| 1764 | |
| 1765 // eax is OSR buffer, move it to expected parameter location | |
| 304 | 1766 __ mov(j_rarg0, rax); |
| 0 | 1767 |
| 1768 // We use j_rarg definitions here so that registers don't conflict as parameter | |
| 1769 // registers change across platforms as we are in the midst of a calling | |
| 1770 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
| 1771 | |
| 1772 const Register retaddr = j_rarg2; | |
| 1773 const Register sender_sp = j_rarg1; | |
| 1774 | |
| 1775 // pop the interpreter frame | |
| 304 | 1776 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1777 __ leave(); // remove frame anchor |
| 304 | 1778 __ pop(retaddr); // get return address |
| 1779 __ mov(rsp, sender_sp); // set sp to sender sp | |
| 0 | 1780 // Ensure compiled code always sees stack at proper alignment |
| 304 | 1781 __ andptr(rsp, -(StackAlignmentInBytes)); |
| 0 | 1782 |
| 1783 // unlike x86 we need no specialized return from compiled code | |
| 1784 // to the interpreter or the call stub. | |
| 1785 | |
| 1786 // push the return address | |
| 304 | 1787 __ push(retaddr); |
| 0 | 1788 |
| 1789 // and begin the OSR nmethod | |
| 1790 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
| 1791 } | |
| 1792 } | |
| 1793 } | |
| 1794 | |
| 1795 | |
| 1796 void TemplateTable::if_0cmp(Condition cc) { | |
| 1797 transition(itos, vtos); | |
| 1798 // assume branch is more often taken than not (loops use backward branches) | |
| 1799 Label not_taken; | |
| 1800 __ testl(rax, rax); | |
| 1801 __ jcc(j_not(cc), not_taken); | |
| 1802 branch(false, false); | |
| 1803 __ bind(not_taken); | |
| 1804 __ profile_not_taken_branch(rax); | |
| 1805 } | |
| 1806 | |
| 1807 void TemplateTable::if_icmp(Condition cc) { | |
| 1808 transition(itos, vtos); | |
| 1809 // assume branch is more often taken than not (loops use backward branches) | |
| 1810 Label not_taken; | |
| 1811 __ pop_i(rdx); | |
| 1812 __ cmpl(rdx, rax); | |
| 1813 __ jcc(j_not(cc), not_taken); | |
| 1814 branch(false, false); | |
| 1815 __ bind(not_taken); | |
| 1816 __ profile_not_taken_branch(rax); | |
| 1817 } | |
| 1818 | |
| 1819 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1820 transition(atos, vtos); | |
| 1821 // assume branch is more often taken than not (loops use backward branches) | |
| 1822 Label not_taken; | |
| 304 | 1823 __ testptr(rax, rax); |
| 0 | 1824 __ jcc(j_not(cc), not_taken); |
| 1825 branch(false, false); | |
| 1826 __ bind(not_taken); | |
| 1827 __ profile_not_taken_branch(rax); | |
| 1828 } | |
| 1829 | |
| 1830 void TemplateTable::if_acmp(Condition cc) { | |
| 1831 transition(atos, vtos); | |
| 1832 // assume branch is more often taken than not (loops use backward branches) | |
| 1833 Label not_taken; | |
| 1834 __ pop_ptr(rdx); | |
| 304 | 1835 __ cmpptr(rdx, rax); |
| 0 | 1836 __ jcc(j_not(cc), not_taken); |
| 1837 branch(false, false); | |
| 1838 __ bind(not_taken); | |
| 1839 __ profile_not_taken_branch(rax); | |
| 1840 } | |
| 1841 | |
| 1842 void TemplateTable::ret() { | |
| 1843 transition(vtos, vtos); | |
| 1844 locals_index(rbx); | |
| 304 | 1845 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1846 __ profile_ret(rbx, rcx); |
| 1847 __ get_method(rax); | |
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1848 __ movptr(r13, Address(rax, Method::const_offset())); |
| 304 | 1849 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1850 ConstMethod::codes_offset())); |
| 0 | 1851 __ dispatch_next(vtos); |
| 1852 } | |
| 1853 | |
| 1854 void TemplateTable::wide_ret() { | |
| 1855 transition(vtos, vtos); | |
| 1856 locals_index_wide(rbx); | |
| 304 | 1857 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1858 __ profile_ret(rbx, rcx); |
| 1859 __ get_method(rax); | |
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1860 __ movptr(r13, Address(rax, Method::const_offset())); |
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1861 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
| 0 | 1862 __ dispatch_next(vtos); |
| 1863 } | |
| 1864 | |
| 1865 void TemplateTable::tableswitch() { | |
| 1866 Label default_case, continue_execution; | |
| 1867 transition(itos, vtos); | |
| 1868 // align r13 | |
| 304 | 1869 __ lea(rbx, at_bcp(BytesPerInt)); |
| 1870 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1871 // load lo & hi |
| 1872 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1873 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
| 1874 __ bswapl(rcx); | |
| 1875 __ bswapl(rdx); | |
| 1876 // check against lo & hi | |
| 1877 __ cmpl(rax, rcx); | |
| 1878 __ jcc(Assembler::less, default_case); | |
| 1879 __ cmpl(rax, rdx); | |
| 1880 __ jcc(Assembler::greater, default_case); | |
| 1881 // lookup dispatch offset | |
| 1882 __ subl(rax, rcx); | |
| 1883 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
| 1884 __ profile_switch_case(rax, rbx, rcx); | |
| 1885 // continue execution | |
| 1886 __ bind(continue_execution); | |
| 1887 __ bswapl(rdx); | |
| 304 | 1888 __ movl2ptr(rdx, rdx); |
| 0 | 1889 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1890 __ addptr(r13, rdx); |
| 0 | 1891 __ dispatch_only(vtos); |
| 1892 // handle default | |
| 1893 __ bind(default_case); | |
| 1894 __ profile_switch_default(rax); | |
| 1895 __ movl(rdx, Address(rbx, 0)); | |
| 1896 __ jmp(continue_execution); | |
| 1897 } | |
| 1898 | |
| 1899 void TemplateTable::lookupswitch() { | |
| 1900 transition(itos, itos); | |
| 1901 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1902 } | |
| 1903 | |
| 1904 void TemplateTable::fast_linearswitch() { | |
| 1905 transition(itos, vtos); | |
| 1906 Label loop_entry, loop, found, continue_execution; | |
| 1907 // bswap rax so we can avoid bswapping the table entries | |
| 1908 __ bswapl(rax); | |
| 1909 // align r13 | |
| 304 | 1910 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
| 1911 // this instruction (change offsets | |
| 1912 // below) | |
| 1913 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1914 // set counter |
| 1915 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1916 __ bswapl(rcx); | |
| 1917 __ jmpb(loop_entry); | |
| 1918 // table search | |
| 1919 __ bind(loop); | |
| 1920 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
| 1921 __ jcc(Assembler::equal, found); | |
| 1922 __ bind(loop_entry); | |
| 1923 __ decrementl(rcx); | |
| 1924 __ jcc(Assembler::greaterEqual, loop); | |
| 1925 // default case | |
| 1926 __ profile_switch_default(rax); | |
| 1927 __ movl(rdx, Address(rbx, 0)); | |
| 1928 __ jmp(continue_execution); | |
| 1929 // entry found -> get offset | |
| 1930 __ bind(found); | |
| 1931 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
| 1932 __ profile_switch_case(rcx, rax, rbx); | |
| 1933 // continue execution | |
| 1934 __ bind(continue_execution); | |
| 1935 __ bswapl(rdx); | |
| 304 | 1936 __ movl2ptr(rdx, rdx); |
| 0 | 1937 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1938 __ addptr(r13, rdx); |
| 0 | 1939 __ dispatch_only(vtos); |
| 1940 } | |
| 1941 | |
| 1942 void TemplateTable::fast_binaryswitch() { | |
| 1943 transition(itos, vtos); | |
| 1944 // Implementation using the following core algorithm: | |
| 1945 // | |
| 1946 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1947 // // Binary search according to "Methodik des Programmierens" by | |
| 1948 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1949 // int i = 0; | |
| 1950 // int j = n; | |
| 1951 // while (i+1 < j) { | |
| 1952 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1953 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1954 // // where a stands for the array and assuming that the (inexisting) | |
| 1955 // // element a[n] is infinitely big. | |
| 1956 // int h = (i + j) >> 1; | |
| 1957 // // i < h < j | |
| 1958 // if (key < array[h].fast_match()) { | |
| 1959 // j = h; | |
| 1960 // } else { | |
| 1961 // i = h; | |
| 1962 // } | |
| 1963 // } | |
| 1964 // // R: a[i] <= key < a[i+1] or Q | |
| 1965 // // (i.e., if key is within array, i is the correct index) | |
| 1966 // return i; | |
| 1967 // } | |
| 1968 | |
| 1969 // Register allocation | |
| 1970 const Register key = rax; // already set (tosca) | |
| 1971 const Register array = rbx; | |
| 1972 const Register i = rcx; | |
| 1973 const Register j = rdx; | |
| 1974 const Register h = rdi; | |
| 1975 const Register temp = rsi; | |
| 1976 | |
| 1977 // Find array start | |
| 304 | 1978 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
| 1979 // get rid of this | |
| 1980 // instruction (change | |
| 1981 // offsets below) | |
| 1982 __ andptr(array, -BytesPerInt); | |
| 0 | 1983 |
| 1984 // Initialize i & j | |
| 1985 __ xorl(i, i); // i = 0; | |
| 1986 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
| 1987 | |
| 1988 // Convert j into native byteordering | |
| 1989 __ bswapl(j); | |
| 1990 | |
| 1991 // And start | |
| 1992 Label entry; | |
| 1993 __ jmp(entry); | |
| 1994 | |
| 1995 // binary search loop | |
| 1996 { | |
| 1997 Label loop; | |
| 1998 __ bind(loop); | |
| 1999 // int h = (i + j) >> 1; | |
| 2000 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
| 2001 __ sarl(h, 1); // h = (i + j) >> 1; | |
| 2002 // if (key < array[h].fast_match()) { | |
| 2003 // j = h; | |
| 2004 // } else { | |
| 2005 // i = h; | |
| 2006 // } | |
| 2007 // Convert array[h].match to native byte-ordering before compare | |
| 2008 __ movl(temp, Address(array, h, Address::times_8)); | |
| 2009 __ bswapl(temp); | |
| 2010 __ cmpl(key, temp); | |
| 2011 // j = h if (key < array[h].fast_match()) | |
| 2012 __ cmovl(Assembler::less, j, h); | |
| 2013 // i = h if (key >= array[h].fast_match()) | |
| 2014 __ cmovl(Assembler::greaterEqual, i, h); | |
| 2015 // while (i+1 < j) | |
| 2016 __ bind(entry); | |
| 2017 __ leal(h, Address(i, 1)); // i+1 | |
| 2018 __ cmpl(h, j); // i+1 < j | |
| 2019 __ jcc(Assembler::less, loop); | |
| 2020 } | |
| 2021 | |
| 2022 // end of binary search, result index is i (must check again!) | |
| 2023 Label default_case; | |
| 2024 // Convert array[i].match to native byte-ordering before compare | |
| 2025 __ movl(temp, Address(array, i, Address::times_8)); | |
| 2026 __ bswapl(temp); | |
| 2027 __ cmpl(key, temp); | |
| 2028 __ jcc(Assembler::notEqual, default_case); | |
| 2029 | |
| 2030 // entry found -> j = offset | |
| 2031 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
| 2032 __ profile_switch_case(i, key, array); | |
| 2033 __ bswapl(j); | |
| 304 | 2034 __ movl2ptr(j, j); |
| 0 | 2035 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2036 __ addptr(r13, j); |
| 0 | 2037 __ dispatch_only(vtos); |
| 2038 | |
| 2039 // default case -> j = default offset | |
| 2040 __ bind(default_case); | |
| 2041 __ profile_switch_default(i); | |
| 2042 __ movl(j, Address(array, -2 * BytesPerInt)); | |
| 2043 __ bswapl(j); | |
| 304 | 2044 __ movl2ptr(j, j); |
| 0 | 2045 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2046 __ addptr(r13, j); |
| 0 | 2047 __ dispatch_only(vtos); |
| 2048 } | |
| 2049 | |
| 2050 | |
| 2051 void TemplateTable::_return(TosState state) { | |
| 2052 transition(state, state); | |
| 2053 assert(_desc->calls_vm(), | |
| 2054 "inconsistent calls_vm information"); // call in remove_activation | |
| 2055 | |
| 2056 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2057 assert(state == vtos, "only valid state"); | |
| 304 | 2058 __ movptr(c_rarg1, aaddress(0)); |
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2059 __ load_klass(rdi, c_rarg1); |
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2060 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
| 0 | 2061 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
| 2062 Label skip_register_finalizer; | |
| 2063 __ jcc(Assembler::zero, skip_register_finalizer); | |
| 2064 | |
| 2065 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
| 2066 | |
| 2067 __ bind(skip_register_finalizer); | |
| 2068 } | |
| 2069 | |
| 2070 __ remove_activation(state, r13); | |
| 2071 __ jmp(r13); | |
| 2072 } | |
| 2073 | |
| 2074 // ---------------------------------------------------------------------------- | |
| 2075 // Volatile variables demand their effects be made known to all CPU's | |
| 2076 // in order. Store buffers on most chips allow reads & writes to | |
| 2077 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
| 2078 // without some kind of memory barrier (i.e., it's not sufficient that | |
| 2079 // the interpreter does not reorder volatile references, the hardware | |
| 2080 // also must not reorder them). | |
| 2081 // | |
| 2082 // According to the new Java Memory Model (JMM): | |
| 2083 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
| 2084 // writes act as aquire & release, so: | |
| 2085 // (2) A read cannot let unrelated NON-volatile memory refs that | |
| 2086 // happen after the read float up to before the read. It's OK for | |
| 2087 // non-volatile memory refs that happen before the volatile read to | |
| 2088 // float down below it. | |
| 2089 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
| 2090 // memory refs that happen BEFORE the write float down to after the | |
| 2091 // write. It's OK for non-volatile memory refs that happen after the | |
| 2092 // volatile write to float up before it. | |
| 2093 // | |
| 2094 // We only put in barriers around volatile refs (they are expensive), | |
| 2095 // not _between_ memory refs (that would require us to track the | |
| 2096 // flavor of the previous memory refs). Requirements (2) and (3) | |
| 2097 // require some barriers before volatile stores and after volatile | |
| 2098 // loads. These nearly cover requirement (1) but miss the | |
| 2099 // volatile-store-volatile-load case. This final case is placed after | |
| 2100 // volatile-stores although it could just as well go before | |
| 2101 // volatile-loads. | |
| 2102 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
| 2103 order_constraint) { | |
| 2104 // Helper function to insert a is-volatile test and memory barrier | |
| 2105 if (os::is_MP()) { // Not needed on single CPU | |
| 2106 __ membar(order_constraint); | |
| 2107 } | |
| 2108 } | |
| 2109 | |
| 1565 | 2110 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2111 Register Rcache, | |
| 2112 Register index, | |
| 2113 size_t index_size) { | |
| 0 | 2114 const Register temp = rbx; |
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2115 assert_different_registers(Rcache, index, temp); |
| 1565 | 2116 |
| 0 | 2117 Label resolved; |
| 1565 | 2118 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2119 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2120 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
| 1108 | 2121 __ jcc(Assembler::equal, resolved); |
| 0 | 2122 |
| 2123 // resolve first time through | |
| 2124 address entry; | |
| 2125 switch (bytecode()) { | |
| 2126 case Bytecodes::_getstatic: | |
| 2127 case Bytecodes::_putstatic: | |
| 2128 case Bytecodes::_getfield: | |
| 2129 case Bytecodes::_putfield: | |
| 2130 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
| 2131 break; | |
| 2132 case Bytecodes::_invokevirtual: | |
| 2133 case Bytecodes::_invokespecial: | |
| 2134 case Bytecodes::_invokestatic: | |
| 2135 case Bytecodes::_invokeinterface: | |
| 2136 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
| 2137 break; | |
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2138 case Bytecodes::_invokehandle: |
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2139 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2140 break; |
| 1108 | 2141 case Bytecodes::_invokedynamic: |
| 2142 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
| 2143 break; | |
| 0 | 2144 default: |
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2145 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
| 0 | 2146 break; |
| 2147 } | |
| 2148 __ movl(temp, (int) bytecode()); | |
| 2149 __ call_VM(noreg, entry, temp); | |
| 2150 | |
| 2151 // Update registers with resolved info | |
| 1565 | 2152 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2153 __ bind(resolved); |
| 2154 } | |
| 2155 | |
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2156 // The cache and index registers must be set before call |
| 0 | 2157 void TemplateTable::load_field_cp_cache_entry(Register obj, |
| 2158 Register cache, | |
| 2159 Register index, | |
| 2160 Register off, | |
| 2161 Register flags, | |
| 2162 bool is_static = false) { | |
| 2163 assert_different_registers(cache, index, flags, off); | |
| 2164 | |
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2165 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2166 // Field offset |
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2167 __ movptr(off, Address(cache, index, Address::times_ptr, |
| 304 | 2168 in_bytes(cp_base_offset + |
| 2169 ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2170 // Flags |
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2171 __ movl(flags, Address(cache, index, Address::times_ptr, |
| 0 | 2172 in_bytes(cp_base_offset + |
| 2173 ConstantPoolCacheEntry::flags_offset()))); | |
| 2174 | |
| 2175 // klass overwrite register | |
| 2176 if (is_static) { | |
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2177 __ movptr(obj, Address(cache, index, Address::times_ptr, |
| 304 | 2178 in_bytes(cp_base_offset + |
| 2179 ConstantPoolCacheEntry::f1_offset()))); | |
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2180 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2181 __ movptr(obj, Address(obj, mirror_offset)); |
| 0 | 2182 } |
| 2183 } | |
| 2184 | |
| 2185 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2186 Register method, | |
| 2187 Register itable_index, | |
| 2188 Register flags, | |
| 2189 bool is_invokevirtual, | |
| 1565 | 2190 bool is_invokevfinal, /*unused*/ |
| 2191 bool is_invokedynamic) { | |
| 0 | 2192 // setup registers |
| 2193 const Register cache = rcx; | |
| 2194 const Register index = rdx; | |
| 2195 assert_different_registers(method, flags); | |
| 2196 assert_different_registers(method, cache, index); | |
| 2197 assert_different_registers(itable_index, flags); | |
| 2198 assert_different_registers(itable_index, cache, index); | |
| 2199 // determine constant pool cache field offsets | |
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2200 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2201 const int method_offset = in_bytes( |
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2202 ConstantPoolCache::base_offset() + |
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2203 ((byte_no == f2_byte) |
| 0 | 2204 ? ConstantPoolCacheEntry::f2_offset() |
| 2205 : ConstantPoolCacheEntry::f1_offset())); | |
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2206 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2207 ConstantPoolCacheEntry::flags_offset()); |
| 2208 // access constant pool cache fields | |
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2209 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2210 ConstantPoolCacheEntry::f2_offset()); |
| 2211 | |
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2212 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2213 resolve_cache_and_index(byte_no, cache, index, index_size); |
| 1565 | 2214 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2215 |
| 0 | 2216 if (itable_index != noreg) { |
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2217 // pick up itable or appendix index from f2 also: |
| 1565 | 2218 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
| 0 | 2219 } |
| 1565 | 2220 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
| 0 | 2221 } |
| 2222 | |
| 2223 // Correct values of the cache and index registers are preserved. | |
| 2224 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
| 2225 bool is_static, bool has_tos) { | |
| 2226 // do the JVMTI work here to avoid disturbing the register state below | |
| 2227 // We use c_rarg registers here because we want to use the register used in | |
| 2228 // the call to the VM | |
| 2229 if (JvmtiExport::can_post_field_access()) { | |
| 2230 // Check to see if a field access watch has been set before we | |
| 2231 // take the time to call into the VM. | |
| 2232 Label L1; | |
| 2233 assert_different_registers(cache, index, rax); | |
| 2234 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2235 __ testl(rax, rax); | |
| 2236 __ jcc(Assembler::zero, L1); | |
| 2237 | |
| 2238 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
| 2239 | |
| 2240 // cache entry pointer | |
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2241 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
| 0 | 2242 __ shll(c_rarg3, LogBytesPerWord); |
| 304 | 2243 __ addptr(c_rarg2, c_rarg3); |
| 0 | 2244 if (is_static) { |
| 2245 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
| 2246 } else { | |
| 304 | 2247 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
| 0 | 2248 __ verify_oop(c_rarg1); |
| 2249 } | |
| 2250 // c_rarg1: object pointer or NULL | |
| 2251 // c_rarg2: cache entry pointer | |
| 2252 // c_rarg3: jvalue object on the stack | |
| 2253 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 2254 InterpreterRuntime::post_field_access), | |
| 2255 c_rarg1, c_rarg2, c_rarg3); | |
| 2256 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2257 __ bind(L1); | |
| 2258 } | |
| 2259 } | |
| 2260 | |
| 2261 void TemplateTable::pop_and_check_object(Register r) { | |
| 2262 __ pop_ptr(r); | |
| 2263 __ null_check(r); // for field access must check obj. | |
| 2264 __ verify_oop(r); | |
| 2265 } | |
| 2266 | |
| 2267 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2268 transition(vtos, vtos); | |
| 2269 | |
| 2270 const Register cache = rcx; | |
| 2271 const Register index = rdx; | |
| 2272 const Register obj = c_rarg3; | |
| 2273 const Register off = rbx; | |
| 2274 const Register flags = rax; | |
| 2275 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
| 2276 | |
|
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2277 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2278 jvmti_post_field_access(cache, index, is_static, false); |
| 2279 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2280 | |
| 2281 if (!is_static) { | |
| 2282 // obj is on the stack | |
| 2283 pop_and_check_object(obj); | |
| 2284 } | |
| 2285 | |
| 2286 const Address field(obj, off, Address::times_1); | |
| 2287 | |
| 2288 Label Done, notByte, notInt, notShort, notChar, | |
| 2289 notLong, notFloat, notObj, notDouble; | |
| 2290 | |
|
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2291 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2292 // Make sure we don't need to mask edx after the above shift |
| 0 | 2293 assert(btos == 0, "change code, btos != 0"); |
| 2294 | |
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2295 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2296 __ jcc(Assembler::notZero, notByte); |
| 2297 // btos | |
| 2298 __ load_signed_byte(rax, field); | |
| 2299 __ push(btos); | |
| 2300 // Rewrite bytecode to be faster | |
| 2301 if (!is_static) { | |
| 2302 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
| 2303 } | |
| 2304 __ jmp(Done); | |
| 2305 | |
| 2306 __ bind(notByte); | |
| 2307 __ cmpl(flags, atos); | |
| 2308 __ jcc(Assembler::notEqual, notObj); | |
| 2309 // atos | |
|
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2310 __ load_heap_oop(rax, field); |
| 0 | 2311 __ push(atos); |
| 2312 if (!is_static) { | |
| 2313 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
| 2314 } | |
| 2315 __ jmp(Done); | |
| 2316 | |
| 2317 __ bind(notObj); | |
| 2318 __ cmpl(flags, itos); | |
| 2319 __ jcc(Assembler::notEqual, notInt); | |
| 2320 // itos | |
| 2321 __ movl(rax, field); | |
| 2322 __ push(itos); | |
| 2323 // Rewrite bytecode to be faster | |
| 2324 if (!is_static) { | |
| 2325 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
| 2326 } | |
| 2327 __ jmp(Done); | |
| 2328 | |
| 2329 __ bind(notInt); | |
| 2330 __ cmpl(flags, ctos); | |
| 2331 __ jcc(Assembler::notEqual, notChar); | |
| 2332 // ctos | |
|
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2333 __ load_unsigned_short(rax, field); |
| 0 | 2334 __ push(ctos); |
| 2335 // Rewrite bytecode to be faster | |
| 2336 if (!is_static) { | |
| 2337 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
| 2338 } | |
| 2339 __ jmp(Done); | |
| 2340 | |
| 2341 __ bind(notChar); | |
| 2342 __ cmpl(flags, stos); | |
| 2343 __ jcc(Assembler::notEqual, notShort); | |
| 2344 // stos | |
|
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2345 __ load_signed_short(rax, field); |
| 0 | 2346 __ push(stos); |
| 2347 // Rewrite bytecode to be faster | |
| 2348 if (!is_static) { | |
| 2349 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
| 2350 } | |
| 2351 __ jmp(Done); | |
| 2352 | |
| 2353 __ bind(notShort); | |
| 2354 __ cmpl(flags, ltos); | |
| 2355 __ jcc(Assembler::notEqual, notLong); | |
| 2356 // ltos | |
| 2357 __ movq(rax, field); | |
| 2358 __ push(ltos); | |
| 2359 // Rewrite bytecode to be faster | |
| 2360 if (!is_static) { | |
| 2361 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
| 2362 } | |
| 2363 __ jmp(Done); | |
| 2364 | |
| 2365 __ bind(notLong); | |
| 2366 __ cmpl(flags, ftos); | |
| 2367 __ jcc(Assembler::notEqual, notFloat); | |
| 2368 // ftos | |
| 2369 __ movflt(xmm0, field); | |
| 2370 __ push(ftos); | |
| 2371 // Rewrite bytecode to be faster | |
| 2372 if (!is_static) { | |
| 2373 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
| 2374 } | |
| 2375 __ jmp(Done); | |
| 2376 | |
| 2377 __ bind(notFloat); | |
| 2378 #ifdef ASSERT | |
| 2379 __ cmpl(flags, dtos); | |
| 2380 __ jcc(Assembler::notEqual, notDouble); | |
| 2381 #endif | |
| 2382 // dtos | |
| 2383 __ movdbl(xmm0, field); | |
| 2384 __ push(dtos); | |
| 2385 // Rewrite bytecode to be faster | |
| 2386 if (!is_static) { | |
| 2387 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
| 2388 } | |
| 2389 #ifdef ASSERT | |
| 2390 __ jmp(Done); | |
| 2391 | |
| 2392 __ bind(notDouble); | |
| 2393 __ stop("Bad state"); | |
| 2394 #endif | |
| 2395 | |
| 2396 __ bind(Done); | |
| 2397 // [jk] not needed currently | |
| 2398 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
| 2399 // Assembler::LoadStore)); | |
| 2400 } | |
| 2401 | |
| 2402 | |
| 2403 void TemplateTable::getfield(int byte_no) { | |
| 2404 getfield_or_static(byte_no, false); | |
| 2405 } | |
| 2406 | |
| 2407 void TemplateTable::getstatic(int byte_no) { | |
| 2408 getfield_or_static(byte_no, true); | |
| 2409 } | |
| 2410 | |
| 2411 // The registers cache and index expected to be set before call. | |
| 2412 // The function may destroy various registers, just not the cache and index registers. | |
| 2413 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
| 2414 transition(vtos, vtos); | |
| 2415 | |
|
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2416 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2417 |
| 2418 if (JvmtiExport::can_post_field_modification()) { | |
| 2419 // Check to see if a field modification watch has been set before | |
| 2420 // we take the time to call into the VM. | |
| 2421 Label L1; | |
| 2422 assert_different_registers(cache, index, rax); | |
| 2423 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2424 __ testl(rax, rax); | |
| 2425 __ jcc(Assembler::zero, L1); | |
| 2426 | |
| 2427 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
| 2428 | |
| 2429 if (is_static) { | |
| 2430 // Life is simple. Null out the object pointer. | |
| 2431 __ xorl(c_rarg1, c_rarg1); | |
| 2432 } else { | |
| 2433 // Life is harder. The stack holds the value on top, followed by | |
| 2434 // the object. We don't know the size of the value, though; it | |
| 2435 // could be one or two words depending on its type. As a result, | |
| 2436 // we must find the type to determine where the object is. | |
| 2437 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
| 2438 Address::times_8, | |
| 2439 in_bytes(cp_base_offset + | |
| 2440 ConstantPoolCacheEntry::flags_offset()))); | |
|
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2441 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2442 // Make sure we don't need to mask rcx after the above shift |
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2443 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 2444 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
| 0 | 2445 __ cmpl(c_rarg3, ltos); |
| 304 | 2446 __ cmovptr(Assembler::equal, |
| 2447 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
| 0 | 2448 __ cmpl(c_rarg3, dtos); |
| 304 | 2449 __ cmovptr(Assembler::equal, |
| 2450 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
| 0 | 2451 } |
| 2452 // cache entry pointer | |
| 304 | 2453 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
| 0 | 2454 __ shll(rscratch1, LogBytesPerWord); |
| 304 | 2455 __ addptr(c_rarg2, rscratch1); |
| 0 | 2456 // object (tos) |
| 304 | 2457 __ mov(c_rarg3, rsp); |
| 0 | 2458 // c_rarg1: object pointer set up above (NULL if static) |
| 2459 // c_rarg2: cache entry pointer | |
| 2460 // c_rarg3: jvalue object on the stack | |
| 2461 __ call_VM(noreg, | |
| 2462 CAST_FROM_FN_PTR(address, | |
| 2463 InterpreterRuntime::post_field_modification), | |
| 2464 c_rarg1, c_rarg2, c_rarg3); | |
| 2465 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2466 __ bind(L1); | |
| 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 const Register bc = c_rarg3; | |
| 2479 | |
|
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2480 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2481 jvmti_post_field_mod(cache, index, is_static); |
| 2482 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2483 | |
| 2484 // [jk] not needed currently | |
| 2485 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2486 // Assembler::StoreStore)); | |
| 2487 | |
| 2488 Label notVolatile, Done; | |
| 2489 __ movl(rdx, flags); | |
|
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2490 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2491 __ andl(rdx, 0x1); |
| 2492 | |
| 2493 // field address | |
| 2494 const Address field(obj, off, Address::times_1); | |
| 2495 | |
| 2496 Label notByte, notInt, notShort, notChar, | |
| 2497 notLong, notFloat, notObj, notDouble; | |
| 2498 | |
|
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2499 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2500 |
| 2501 assert(btos == 0, "change code, btos != 0"); | |
|
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2502 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2503 __ jcc(Assembler::notZero, notByte); |
|
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2504 |
| 0 | 2505 // btos |
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2506 { |
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2507 __ pop(btos); |
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2508 if (!is_static) pop_and_check_object(obj); |
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2509 __ movb(field, rax); |
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2510 if (!is_static) { |
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2511 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2512 } |
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2513 __ jmp(Done); |
| 0 | 2514 } |
| 2515 | |
| 2516 __ bind(notByte); | |
| 2517 __ cmpl(flags, atos); | |
| 2518 __ jcc(Assembler::notEqual, notObj); | |
|
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2519 |
| 0 | 2520 // atos |
|
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2521 { |
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2522 __ pop(atos); |
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2523 if (!is_static) pop_and_check_object(obj); |
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2524 // Store into the field |
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2525 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2526 if (!is_static) { |
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2527 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2528 } |
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2529 __ jmp(Done); |
| 0 | 2530 } |
| 2531 | |
| 2532 __ bind(notObj); | |
| 2533 __ cmpl(flags, itos); | |
| 2534 __ jcc(Assembler::notEqual, notInt); | |
|
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2535 |
| 0 | 2536 // itos |
|
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2537 { |
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2538 __ pop(itos); |
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2539 if (!is_static) pop_and_check_object(obj); |
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2540 __ movl(field, rax); |
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2541 if (!is_static) { |
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2542 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2543 } |
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2544 __ jmp(Done); |
| 0 | 2545 } |
| 2546 | |
| 2547 __ bind(notInt); | |
| 2548 __ cmpl(flags, ctos); | |
| 2549 __ jcc(Assembler::notEqual, notChar); | |
|
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2550 |
| 0 | 2551 // ctos |
|
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2552 { |
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2553 __ pop(ctos); |
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2554 if (!is_static) pop_and_check_object(obj); |
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2555 __ movw(field, rax); |
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2556 if (!is_static) { |
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2557 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2558 } |
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2559 __ jmp(Done); |
| 0 | 2560 } |
| 2561 | |
| 2562 __ bind(notChar); | |
| 2563 __ cmpl(flags, stos); | |
| 2564 __ jcc(Assembler::notEqual, notShort); | |
|
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2565 |
| 0 | 2566 // stos |
|
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2567 { |
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2568 __ pop(stos); |
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2569 if (!is_static) pop_and_check_object(obj); |
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2570 __ movw(field, rax); |
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2571 if (!is_static) { |
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2572 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
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2573 } |
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2574 __ jmp(Done); |
| 0 | 2575 } |
| 2576 | |
| 2577 __ bind(notShort); | |
| 2578 __ cmpl(flags, ltos); | |
| 2579 __ jcc(Assembler::notEqual, notLong); | |
|
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2580 |
| 0 | 2581 // ltos |
|
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2582 { |
|
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|
2583 __ pop(ltos); |
|
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|
2584 if (!is_static) pop_and_check_object(obj); |
|
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|
2585 __ movq(field, rax); |
|
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|
2586 if (!is_static) { |
|
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|
2587 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
|
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|
2588 } |
|
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|
2589 __ jmp(Done); |
| 0 | 2590 } |
| 2591 | |
| 2592 __ bind(notLong); | |
| 2593 __ cmpl(flags, ftos); | |
| 2594 __ jcc(Assembler::notEqual, notFloat); | |
|
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|
2595 |
| 0 | 2596 // ftos |
|
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|
2597 { |
|
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|
2598 __ pop(ftos); |
|
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|
2599 if (!is_static) pop_and_check_object(obj); |
|
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|
2600 __ movflt(field, xmm0); |
|
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|
2601 if (!is_static) { |
|
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|
2602 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
|
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|
2603 } |
|
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|
2604 __ jmp(Done); |
| 0 | 2605 } |
| 2606 | |
| 2607 __ bind(notFloat); | |
| 2608 #ifdef ASSERT | |
| 2609 __ cmpl(flags, dtos); | |
| 2610 __ jcc(Assembler::notEqual, notDouble); | |
| 2611 #endif | |
|
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|
2612 |
| 0 | 2613 // dtos |
|
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|
2614 { |
|
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|
2615 __ pop(dtos); |
|
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|
2616 if (!is_static) pop_and_check_object(obj); |
|
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|
2617 __ movdbl(field, xmm0); |
|
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|
2618 if (!is_static) { |
|
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|
2619 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
|
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|
2620 } |
| 0 | 2621 } |
| 2622 | |
| 2623 #ifdef ASSERT | |
| 2624 __ jmp(Done); | |
| 2625 | |
| 2626 __ bind(notDouble); | |
| 2627 __ stop("Bad state"); | |
| 2628 #endif | |
| 2629 | |
| 2630 __ bind(Done); | |
|
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|
2631 |
| 0 | 2632 // Check for volatile store |
| 2633 __ testl(rdx, rdx); | |
| 2634 __ jcc(Assembler::zero, notVolatile); | |
| 2635 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2636 Assembler::StoreStore)); | |
| 2637 __ bind(notVolatile); | |
| 2638 } | |
| 2639 | |
| 2640 void TemplateTable::putfield(int byte_no) { | |
| 2641 putfield_or_static(byte_no, false); | |
| 2642 } | |
| 2643 | |
| 2644 void TemplateTable::putstatic(int byte_no) { | |
| 2645 putfield_or_static(byte_no, true); | |
| 2646 } | |
| 2647 | |
| 2648 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2649 if (JvmtiExport::can_post_field_modification()) { | |
| 2650 // Check to see if a field modification watch has been set before | |
| 2651 // we take the time to call into the VM. | |
| 2652 Label L2; | |
| 2653 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2654 __ testl(c_rarg3, c_rarg3); | |
| 2655 __ jcc(Assembler::zero, L2); | |
| 2656 __ pop_ptr(rbx); // copy the object pointer from tos | |
| 2657 __ verify_oop(rbx); | |
| 2658 __ push_ptr(rbx); // put the object pointer back on tos | |
|
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|
2659 // Save tos values before call_VM() clobbers them. Since we have |
|
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|
2660 // to do it for every data type, we use the saved values as the |
|
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|
2661 // jvalue object. |
| 0 | 2662 switch (bytecode()) { // load values into the jvalue object |
|
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2663 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
|
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|
2664 case Bytecodes::_fast_bputfield: // fall through |
| 0 | 2665 case Bytecodes::_fast_sputfield: // fall through |
|
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|
2666 case Bytecodes::_fast_cputfield: // fall through |
|
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|
2667 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
|
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2668 case Bytecodes::_fast_dputfield: __ push_d(); break; |
|
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2669 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2670 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
|
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2671 |
| 0 | 2672 default: |
| 2673 ShouldNotReachHere(); | |
| 2674 } | |
|
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|
2675 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
| 0 | 2676 // access constant pool cache entry |
| 2677 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
| 2678 __ verify_oop(rbx); | |
| 2679 // rbx: object pointer copied above | |
| 2680 // c_rarg2: cache entry pointer | |
| 2681 // c_rarg3: jvalue object on the stack | |
| 2682 __ call_VM(noreg, | |
| 2683 CAST_FROM_FN_PTR(address, | |
| 2684 InterpreterRuntime::post_field_modification), | |
| 2685 rbx, c_rarg2, c_rarg3); | |
|
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2686 |
|
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|
2687 switch (bytecode()) { // restore tos values |
|
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2688 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
|
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|
2689 case Bytecodes::_fast_bputfield: // fall through |
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|
2690 case Bytecodes::_fast_sputfield: // fall through |
|
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|
2691 case Bytecodes::_fast_cputfield: // fall through |
|
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|
2692 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
|
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|
2693 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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|
2694 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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|
2695 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
|
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|
2696 } |
| 0 | 2697 __ bind(L2); |
| 2698 } | |
| 2699 } | |
| 2700 | |
| 2701 void TemplateTable::fast_storefield(TosState state) { | |
| 2702 transition(state, vtos); | |
| 2703 | |
|
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|
2704 ByteSize base = ConstantPoolCache::base_offset(); |
| 0 | 2705 |
| 2706 jvmti_post_fast_field_mod(); | |
| 2707 | |
| 2708 // access constant pool cache | |
| 2709 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2710 | |
| 2711 // test for volatile with rdx | |
| 2712 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
| 2713 in_bytes(base + | |
| 2714 ConstantPoolCacheEntry::flags_offset()))); | |
| 2715 | |
| 2716 // replace index with field offset from cache entry | |
| 304 | 2717 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
| 2718 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2719 |
| 2720 // [jk] not needed currently | |
| 2721 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2722 // Assembler::StoreStore)); | |
| 2723 | |
| 2724 Label notVolatile; | |
|
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|
2725 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2726 __ andl(rdx, 0x1); |
| 2727 | |
| 2728 // Get object from stack | |
| 2729 pop_and_check_object(rcx); | |
| 2730 | |
| 2731 // field address | |
| 2732 const Address field(rcx, rbx, Address::times_1); | |
| 2733 | |
| 2734 // access field | |
| 2735 switch (bytecode()) { | |
| 2736 case Bytecodes::_fast_aputfield: | |
|
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|
2737 do_oop_store(_masm, field, rax, _bs->kind(), false); |
| 0 | 2738 break; |
| 2739 case Bytecodes::_fast_lputfield: | |
| 2740 __ movq(field, rax); | |
| 2741 break; | |
| 2742 case Bytecodes::_fast_iputfield: | |
| 2743 __ movl(field, rax); | |
| 2744 break; | |
| 2745 case Bytecodes::_fast_bputfield: | |
| 2746 __ movb(field, rax); | |
| 2747 break; | |
| 2748 case Bytecodes::_fast_sputfield: | |
| 2749 // fall through | |
| 2750 case Bytecodes::_fast_cputfield: | |
| 2751 __ movw(field, rax); | |
| 2752 break; | |
| 2753 case Bytecodes::_fast_fputfield: | |
| 2754 __ movflt(field, xmm0); | |
| 2755 break; | |
| 2756 case Bytecodes::_fast_dputfield: | |
| 2757 __ movdbl(field, xmm0); | |
| 2758 break; | |
| 2759 default: | |
| 2760 ShouldNotReachHere(); | |
| 2761 } | |
| 2762 | |
| 2763 // Check for volatile store | |
| 2764 __ testl(rdx, rdx); | |
| 2765 __ jcc(Assembler::zero, notVolatile); | |
| 2766 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2767 Assembler::StoreStore)); | |
| 2768 __ bind(notVolatile); | |
| 2769 } | |
| 2770 | |
| 2771 | |
| 2772 void TemplateTable::fast_accessfield(TosState state) { | |
| 2773 transition(atos, state); | |
| 2774 | |
| 2775 // Do the JVMTI work here to avoid disturbing the register state below | |
| 2776 if (JvmtiExport::can_post_field_access()) { | |
| 2777 // Check to see if a field access watch has been set before we | |
| 2778 // take the time to call into the VM. | |
| 2779 Label L1; | |
| 2780 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2781 __ testl(rcx, rcx); | |
| 2782 __ jcc(Assembler::zero, L1); | |
| 2783 // access constant pool cache entry | |
| 2784 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
|
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|
2785 __ verify_oop(rax); |
|
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|
2786 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
| 304 | 2787 __ mov(c_rarg1, rax); |
| 0 | 2788 // c_rarg1: object pointer copied above |
| 2789 // c_rarg2: cache entry pointer | |
| 2790 __ call_VM(noreg, | |
| 2791 CAST_FROM_FN_PTR(address, | |
| 2792 InterpreterRuntime::post_field_access), | |
| 2793 c_rarg1, c_rarg2); | |
|
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|
2794 __ pop_ptr(rax); // restore object pointer |
| 0 | 2795 __ bind(L1); |
| 2796 } | |
| 2797 | |
| 2798 // access constant pool cache | |
| 2799 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2800 // replace index with field offset from cache entry | |
| 2801 // [jk] not needed currently | |
| 2802 // if (os::is_MP()) { | |
| 2803 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
|
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|
2804 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2805 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2806 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2807 // __ andl(rdx, 0x1); |
| 2808 // } | |
| 304 | 2809 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
|
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|
2810 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2811 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2812 |
| 2813 // rax: object | |
| 2814 __ verify_oop(rax); | |
| 2815 __ null_check(rax); | |
| 2816 Address field(rax, rbx, Address::times_1); | |
| 2817 | |
| 2818 // access field | |
| 2819 switch (bytecode()) { | |
| 2820 case Bytecodes::_fast_agetfield: | |
|
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|
2821 __ load_heap_oop(rax, field); |
| 0 | 2822 __ verify_oop(rax); |
| 2823 break; | |
| 2824 case Bytecodes::_fast_lgetfield: | |
| 2825 __ movq(rax, field); | |
| 2826 break; | |
| 2827 case Bytecodes::_fast_igetfield: | |
| 2828 __ movl(rax, field); | |
| 2829 break; | |
| 2830 case Bytecodes::_fast_bgetfield: | |
| 2831 __ movsbl(rax, field); | |
| 2832 break; | |
| 2833 case Bytecodes::_fast_sgetfield: | |
|
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|
2834 __ load_signed_short(rax, field); |
| 0 | 2835 break; |
| 2836 case Bytecodes::_fast_cgetfield: | |
|
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|
2837 __ load_unsigned_short(rax, field); |
| 0 | 2838 break; |
| 2839 case Bytecodes::_fast_fgetfield: | |
| 2840 __ movflt(xmm0, field); | |
| 2841 break; | |
| 2842 case Bytecodes::_fast_dgetfield: | |
| 2843 __ movdbl(xmm0, field); | |
| 2844 break; | |
| 2845 default: | |
| 2846 ShouldNotReachHere(); | |
| 2847 } | |
| 2848 // [jk] not needed currently | |
| 2849 // if (os::is_MP()) { | |
| 2850 // Label notVolatile; | |
| 2851 // __ testl(rdx, rdx); | |
| 2852 // __ jcc(Assembler::zero, notVolatile); | |
| 2853 // __ membar(Assembler::LoadLoad); | |
| 2854 // __ bind(notVolatile); | |
| 2855 //}; | |
| 2856 } | |
| 2857 | |
| 2858 void TemplateTable::fast_xaccess(TosState state) { | |
| 2859 transition(vtos, state); | |
| 2860 | |
| 2861 // get receiver | |
| 304 | 2862 __ movptr(rax, aaddress(0)); |
| 0 | 2863 // access constant pool cache |
| 2864 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
| 304 | 2865 __ movptr(rbx, |
| 2866 Address(rcx, rdx, Address::times_8, | |
|
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|
2867 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2868 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2869 // make sure exception is reported in correct bcp range (getfield is |
| 2870 // next instruction) | |
| 304 | 2871 __ increment(r13); |
| 0 | 2872 __ null_check(rax); |
| 2873 switch (state) { | |
| 2874 case itos: | |
| 2875 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
| 2876 break; | |
| 2877 case atos: | |
|
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|
2878 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
| 0 | 2879 __ verify_oop(rax); |
| 2880 break; | |
| 2881 case ftos: | |
| 2882 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
| 2883 break; | |
| 2884 default: | |
| 2885 ShouldNotReachHere(); | |
| 2886 } | |
| 2887 | |
| 2888 // [jk] not needed currently | |
| 2889 // if (os::is_MP()) { | |
| 2890 // Label notVolatile; | |
| 2891 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
|
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2892 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2893 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2894 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2895 // __ testl(rdx, 0x1); |
| 2896 // __ jcc(Assembler::zero, notVolatile); | |
| 2897 // __ membar(Assembler::LoadLoad); | |
| 2898 // __ bind(notVolatile); | |
| 2899 // } | |
| 2900 | |
| 304 | 2901 __ decrement(r13); |
| 0 | 2902 } |
| 2903 | |
| 2904 | |
| 2905 | |
| 2906 //----------------------------------------------------------------------------- | |
| 2907 // Calls | |
| 2908 | |
| 2909 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2910 // implemented elsewhere | |
| 2911 ShouldNotReachHere(); | |
| 2912 } | |
| 2913 | |
|
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2914 void TemplateTable::prepare_invoke(int byte_no, |
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2915 Register method, // linked method (or i-klass) |
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2916 Register index, // itable index, MethodType, etc. |
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2917 Register recv, // if caller wants to see it |
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2918 Register flags // if caller wants to test it |
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2919 ) { |
| 0 | 2920 // determine flags |
|
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2921 const Bytecodes::Code code = bytecode(); |
| 0 | 2922 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
| 1108 | 2923 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
|
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2924 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
| 0 | 2925 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
| 2926 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
|
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2927 const bool load_receiver = (recv != noreg); |
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2928 const bool save_flags = (flags != noreg); |
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2929 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2930 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
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2931 assert(flags == noreg || flags == rdx, ""); |
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2932 assert(recv == noreg || recv == rcx, ""); |
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2933 |
| 0 | 2934 // setup registers & access constant pool cache |
|
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2935 if (recv == noreg) recv = rcx; |
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2936 if (flags == noreg) flags = rdx; |
| 0 | 2937 assert_different_registers(method, index, recv, flags); |
| 2938 | |
| 2939 // save 'interpreter return address' | |
| 2940 __ save_bcp(); | |
| 2941 | |
| 1565 | 2942 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
| 0 | 2943 |
|
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2944 // maybe push appendix to arguments (just before return address) |
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2945 if (is_invokedynamic || is_invokehandle) { |
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2946 Label L_no_push; |
|
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2947 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
|
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2948 __ jcc(Assembler::zero, L_no_push); |
|
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2949 // Push the appendix as a trailing parameter. |
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2950 // This must be done before we get the receiver, |
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2951 // since the parameter_size includes it. |
|
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2952 __ push(rbx); |
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2953 __ mov(rbx, index); |
|
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2954 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2955 __ load_resolved_reference_at_index(index, rbx); |
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2956 __ pop(rbx); |
|
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2957 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2958 __ bind(L_no_push); |
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2959 } |
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2960 |
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2961 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2962 // Note: no return address pushed yet |
| 0 | 2963 if (load_receiver) { |
| 2964 __ movl(recv, flags); | |
|
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2965 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2966 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2967 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2968 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
| 1304 | 2969 __ movptr(recv, recv_addr); |
| 2970 __ verify_oop(recv); | |
| 0 | 2971 } |
| 2972 | |
| 2973 if (save_flags) { | |
| 2974 __ movl(r13, flags); | |
| 2975 } | |
| 2976 | |
| 2977 // compute return type | |
|
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2978 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2979 // Make sure we don't need to mask flags after the above shift |
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2980 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2981 // load return address |
| 2982 { | |
|
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2983 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2984 (address)Interpreter::return_5_addrs_by_index_table() : |
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2985 (address)Interpreter::return_3_addrs_by_index_table(); |
| 1108 | 2986 ExternalAddress table(table_addr); |
| 2987 __ lea(rscratch1, table); | |
| 2988 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
| 0 | 2989 } |
| 2990 | |
| 2991 // push return address | |
| 304 | 2992 __ push(flags); |
| 0 | 2993 |
|
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2994 // Restore flags value from the constant pool cache, and restore rsi |
| 0 | 2995 // for later null checks. r13 is the bytecode pointer |
| 2996 if (save_flags) { | |
| 2997 __ movl(flags, r13); | |
| 2998 __ restore_bcp(); | |
| 2999 } | |
| 3000 } | |
| 3001 | |
| 3002 | |
| 3003 void TemplateTable::invokevirtual_helper(Register index, | |
| 3004 Register recv, | |
| 3005 Register flags) { | |
| 1783 | 3006 // Uses temporary registers rax, rdx |
| 3007 assert_different_registers(index, recv, rax, rdx); | |
|
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3008 assert(index == rbx, ""); |
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3009 assert(recv == rcx, ""); |
| 0 | 3010 |
| 3011 // Test for an invoke of a final method | |
| 3012 Label notFinal; | |
| 3013 __ movl(rax, flags); | |
|
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3014 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
| 0 | 3015 __ jcc(Assembler::zero, notFinal); |
| 3016 | |
| 3017 const Register method = index; // method must be rbx | |
| 3018 assert(method == rbx, | |
|
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3019 "Method* must be rbx for interpreter calling convention"); |
| 0 | 3020 |
| 3021 // do the call - the index is actually the method to call | |
|
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3022 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
| 0 | 3023 |
| 3024 // It's final, need a null check here! | |
| 3025 __ null_check(recv); | |
| 3026 | |
| 3027 // profile this call | |
| 3028 __ profile_final_call(rax); | |
| 3029 | |
| 3030 __ jump_from_interpreted(method, rax); | |
| 3031 | |
| 3032 __ bind(notFinal); | |
| 3033 | |
| 3034 // get receiver klass | |
| 3035 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
|
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3036 __ load_klass(rax, recv); |
| 0 | 3037 |
| 3038 // profile this call | |
| 3039 __ profile_virtual_call(rax, r14, rdx); | |
| 3040 | |
|
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3041 // get target Method* & entry point |
|
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3042 __ lookup_virtual_method(rax, index, method); |
| 0 | 3043 __ jump_from_interpreted(method, rdx); |
| 3044 } | |
| 3045 | |
| 3046 | |
| 3047 void TemplateTable::invokevirtual(int byte_no) { | |
| 3048 transition(vtos, vtos); | |
| 1565 | 3049 assert(byte_no == f2_byte, "use this argument"); |
|
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3050 prepare_invoke(byte_no, |
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3051 rbx, // method or vtable index |
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3052 noreg, // unused itable index |
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3053 rcx, rdx); // recv, flags |
| 0 | 3054 |
| 3055 // rbx: index | |
| 3056 // rcx: receiver | |
| 3057 // rdx: flags | |
| 3058 | |
| 3059 invokevirtual_helper(rbx, rcx, rdx); | |
| 3060 } | |
| 3061 | |
| 3062 | |
| 3063 void TemplateTable::invokespecial(int byte_no) { | |
| 3064 transition(vtos, vtos); | |
| 1565 | 3065 assert(byte_no == f1_byte, "use this argument"); |
|
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3066 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
|
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3067 rcx); // get receiver also for null check |
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3068 __ verify_oop(rcx); |
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3069 __ null_check(rcx); |
| 0 | 3070 // do the call |
| 3071 __ profile_call(rax); | |
| 3072 __ jump_from_interpreted(rbx, rax); | |
| 3073 } | |
| 3074 | |
| 3075 | |
| 3076 void TemplateTable::invokestatic(int byte_no) { | |
| 3077 transition(vtos, vtos); | |
| 1565 | 3078 assert(byte_no == f1_byte, "use this argument"); |
|
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3079 prepare_invoke(byte_no, rbx); // get f1 Method* |
| 0 | 3080 // do the call |
| 3081 __ profile_call(rax); | |
| 3082 __ jump_from_interpreted(rbx, rax); | |
| 3083 } | |
| 3084 | |
| 3085 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3086 transition(vtos, vtos); | |
| 1565 | 3087 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3088 __ stop("fast_invokevfinal not used on amd64"); |
| 3089 } | |
| 3090 | |
| 3091 void TemplateTable::invokeinterface(int byte_no) { | |
| 3092 transition(vtos, vtos); | |
| 1565 | 3093 assert(byte_no == f1_byte, "use this argument"); |
|
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3094 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
|
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|
3095 rcx, rdx); // recv, flags |
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3096 |
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3097 // rax: interface klass (from f1) |
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3098 // rbx: itable index (from f2) |
| 0 | 3099 // rcx: receiver |
| 3100 // rdx: flags | |
| 3101 | |
| 3102 // Special case of invokeinterface called for virtual method of | |
| 3103 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3104 // This code isn't produced by javac, but could be produced by | |
| 3105 // another compliant java compiler. | |
| 3106 Label notMethod; | |
| 3107 __ movl(r14, rdx); | |
|
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|
3108 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
| 0 | 3109 __ jcc(Assembler::zero, notMethod); |
| 3110 | |
| 3111 invokevirtual_helper(rbx, rcx, rdx); | |
| 3112 __ bind(notMethod); | |
| 3113 | |
| 3114 // Get receiver klass into rdx - also a null check | |
|
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3115 __ restore_locals(); // restore r14 |
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3116 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
|
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3117 __ load_klass(rdx, rcx); |
| 0 | 3118 |
| 3119 // profile this call | |
| 3120 __ profile_virtual_call(rdx, r13, r14); | |
| 3121 | |
|
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3122 Label no_such_interface, no_such_method; |
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3123 |
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3124 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
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|
3125 rdx, rax, rbx, |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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parents:
622
diff
changeset
|
3126 // outputs: method, scan temp. reg |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3127 rbx, r13, |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3128 no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3129 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3130 // rbx: Method* to call |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3131 // rcx: receiver |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3132 // Check for abstract method error |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3133 // Note: This should be done more efficiently via a throw_abstract_method_error |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3134 // interpreter entry point and a conditional jump to it in case of a null |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3135 // method. |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3136 __ testptr(rbx, rbx); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3137 __ jcc(Assembler::zero, no_such_method); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3138 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3139 // do the call |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3140 // rcx: receiver |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
3141 // rbx,: Method* |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3142 __ jump_from_interpreted(rbx, rdx); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3143 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3144 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3145 // exception handling code follows... |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3146 // note: must restore interpreter registers to canonical |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3147 // state for exception handling to work correctly! |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3148 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3149 __ bind(no_such_method); |
| 0 | 3150 // throw exception |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3151 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3152 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3153 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3154 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3155 // the call_VM checks for exception, so we should never return here. |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3156 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3157 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3158 __ bind(no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3159 // throw exception |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3160 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3161 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3162 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
| 0 | 3163 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
| 3164 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3165 // the call_VM checks for exception, so we should never return here. | |
| 3166 __ should_not_reach_here(); | |
| 3167 } | |
| 3168 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3169 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3170 void TemplateTable::invokehandle(int byte_no) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3171 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3172 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
|
3173 const Register rbx_method = rbx; |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6740
diff
changeset
|
3174 const Register rax_mtype = rax; |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3175 const Register rcx_recv = rcx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3176 const Register rdx_flags = rdx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3177 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3178 if (!EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3179 // rewriter does not generate this bytecode |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3180 __ should_not_reach_here(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3181 return; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3182 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3183 |
|
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
|
3184 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
|
3185 __ 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
|
3186 __ verify_oop(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3187 __ null_check(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3188 |
|
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
|
3189 // 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
|
3190 // 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
|
3191 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3192 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3193 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3194 // FIXME: profile the LambdaForm also |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3195 __ profile_final_call(rax); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3196 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3197 __ jump_from_interpreted(rbx_method, rdx); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3198 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3199 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3200 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3201 void TemplateTable::invokedynamic(int byte_no) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3202 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3203 assert(byte_no == f1_byte, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3204 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3205 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3206 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3207 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3208 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3209 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3210 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3211 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3212 __ should_not_reach_here(); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3213 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3214 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3215 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3216 const Register rbx_method = rbx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3217 const Register rax_callsite = rax; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3218 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3219 prepare_invoke(byte_no, rbx_method, rax_callsite); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3220 |
|
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
|
3221 // rax: CallSite object (from cpool->resolved_references[f1]) |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3222 // rbx: MH.linkToCallSite method (from f2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3223 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3224 // Note: rax_callsite is already pushed by prepare_invoke |
| 1846 | 3225 |
|
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3226 // %%% 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
|
3227 // profile this call |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3228 __ profile_call(r13); |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3229 |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3230 __ verify_oop(rax_callsite); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3231 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3232 __ jump_from_interpreted(rbx_method, rdx); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3233 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3234 |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
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|
3235 |
| 0 | 3236 //----------------------------------------------------------------------------- |
| 3237 // Allocation | |
| 3238 | |
| 3239 void TemplateTable::_new() { | |
| 3240 transition(vtos, atos); | |
| 3241 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3242 Label slow_case; | |
| 3243 Label done; | |
| 3244 Label initialize_header; | |
| 3245 Label initialize_object; // including clearing the fields | |
| 3246 Label allocate_shared; | |
| 3247 | |
| 3248 __ get_cpool_and_tags(rsi, rax); | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3249 // 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
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6266
diff
changeset
|
3250 // 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
|
3251 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
da91efe96a93
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coleenp
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6266
diff
changeset
|
3252 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 3253 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
| 3254 JVM_CONSTANT_Class); | |
| 3255 __ jcc(Assembler::notEqual, slow_case); | |
| 3256 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3257 // get InstanceKlass |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3258 __ movptr(rsi, Address(rsi, rdx, |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3259 Address::times_8, sizeof(ConstantPool))); |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3260 |
| 0 | 3261 // make sure klass is initialized & doesn't have finalizer |
| 3262 // make sure klass is fully initialized | |
|
4739
52b5d32fbfaf
7117052: instanceKlass::_init_state can be u1 type
coleenp
parents:
3852
diff
changeset
|
3263 __ cmpb(Address(rsi, |
|
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3264 InstanceKlass::init_state_offset()), |
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3265 InstanceKlass::fully_initialized); |
| 0 | 3266 __ jcc(Assembler::notEqual, slow_case); |
| 3267 | |
|
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3268 // get instance_size in InstanceKlass (scaled to a count of bytes) |
| 0 | 3269 __ movl(rdx, |
| 3270 Address(rsi, | |
|
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|
3271 Klass::layout_helper_offset())); |
| 0 | 3272 // test to see if it has a finalizer or is malformed in some way |
| 3273 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
| 3274 __ jcc(Assembler::notZero, slow_case); | |
| 3275 | |
| 3276 // Allocate the instance | |
| 3277 // 1) Try to allocate in the TLAB | |
| 3278 // 2) if fail and the object is large allocate in the shared Eden | |
| 3279 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3280 // (creates a new TLAB, etc.) | |
| 3281 | |
| 3282 const bool allow_shared_alloc = | |
| 3283 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3284 | |
| 3285 if (UseTLAB) { | |
| 304 | 3286 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
| 3287 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3288 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
| 0 | 3289 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
| 304 | 3290 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
| 0 | 3291 if (ZeroTLAB) { |
| 3292 // the fields have been already cleared | |
| 3293 __ jmp(initialize_header); | |
| 3294 } else { | |
| 3295 // initialize both the header and fields | |
| 3296 __ jmp(initialize_object); | |
| 3297 } | |
| 3298 } | |
| 3299 | |
| 3300 // Allocation in the shared Eden, if allowed. | |
| 3301 // | |
| 3302 // rdx: instance size in bytes | |
| 3303 if (allow_shared_alloc) { | |
| 3304 __ bind(allocate_shared); | |
| 3305 | |
|
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3306 ExternalAddress top((address)Universe::heap()->top_addr()); |
|
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3307 ExternalAddress end((address)Universe::heap()->end_addr()); |
|
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3308 |
| 0 | 3309 const Register RtopAddr = rscratch1; |
| 3310 const Register RendAddr = rscratch2; | |
| 3311 | |
| 3312 __ lea(RtopAddr, top); | |
| 3313 __ lea(RendAddr, end); | |
| 304 | 3314 __ movptr(rax, Address(RtopAddr, 0)); |
| 0 | 3315 |
| 3316 // For retries rax gets set by cmpxchgq | |
| 3317 Label retry; | |
| 3318 __ bind(retry); | |
| 304 | 3319 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
| 3320 __ cmpptr(rbx, Address(RendAddr, 0)); | |
| 0 | 3321 __ jcc(Assembler::above, slow_case); |
| 3322 | |
| 3323 // Compare rax with the top addr, and if still equal, store the new | |
| 3324 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
| 3325 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
| 3326 // | |
| 3327 // rax: object begin | |
| 3328 // rbx: object end | |
| 3329 // rdx: instance size in bytes | |
| 3330 if (os::is_MP()) { | |
| 3331 __ lock(); | |
| 3332 } | |
| 304 | 3333 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
| 0 | 3334 |
| 3335 // if someone beat us on the allocation, try again, otherwise continue | |
| 3336 __ jcc(Assembler::notEqual, retry); | |
|
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3337 |
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3338 __ incr_allocated_bytes(r15_thread, rdx, 0); |
| 0 | 3339 } |
| 3340 | |
| 3341 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3342 // The object is initialized before the header. If the object size is | |
| 3343 // zero, go directly to the header initialization. | |
| 3344 __ bind(initialize_object); | |
| 3345 __ decrementl(rdx, sizeof(oopDesc)); | |
| 3346 __ jcc(Assembler::zero, initialize_header); | |
| 3347 | |
| 3348 // Initialize object fields | |
| 3349 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
| 3350 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
| 3351 { | |
| 3352 Label loop; | |
| 3353 __ bind(loop); | |
| 3354 __ movq(Address(rax, rdx, Address::times_8, | |
| 3355 sizeof(oopDesc) - oopSize), | |
| 3356 rcx); | |
| 3357 __ decrementl(rdx); | |
| 3358 __ jcc(Assembler::notZero, loop); | |
| 3359 } | |
| 3360 | |
| 3361 // initialize object header only. | |
| 3362 __ bind(initialize_header); | |
| 3363 if (UseBiasedLocking) { | |
|
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3364 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
| 304 | 3365 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
| 0 | 3366 } else { |
| 3367 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
| 3368 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
| 3369 } | |
|
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3370 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
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3371 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
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3372 __ store_klass(rax, rsi); // store klass last |
|
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3373 |
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3374 { |
|
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3375 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
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3376 // Trigger dtrace event for fastpath |
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3377 __ push(atos); // save the return value |
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3378 __ call_VM_leaf( |
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3379 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
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3380 __ pop(atos); // restore the return value |
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3381 |
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|
3382 } |
| 0 | 3383 __ jmp(done); |
| 3384 } | |
| 3385 | |
| 3386 | |
| 3387 // slow case | |
| 3388 __ bind(slow_case); | |
| 3389 __ get_constant_pool(c_rarg1); | |
| 3390 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3391 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
| 3392 __ verify_oop(rax); | |
| 3393 | |
| 3394 // continue | |
| 3395 __ bind(done); | |
| 3396 } | |
| 3397 | |
| 3398 void TemplateTable::newarray() { | |
| 3399 transition(itos, atos); | |
| 3400 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
| 3401 __ movl(c_rarg2, rax); | |
| 3402 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
| 3403 c_rarg1, c_rarg2); | |
| 3404 } | |
| 3405 | |
| 3406 void TemplateTable::anewarray() { | |
| 3407 transition(itos, atos); | |
| 3408 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3409 __ get_constant_pool(c_rarg1); | |
| 3410 __ movl(c_rarg3, rax); | |
| 3411 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
| 3412 c_rarg1, c_rarg2, c_rarg3); | |
| 3413 } | |
| 3414 | |
| 3415 void TemplateTable::arraylength() { | |
| 3416 transition(atos, itos); | |
| 3417 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
| 3418 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
| 3419 } | |
| 3420 | |
| 3421 void TemplateTable::checkcast() { | |
| 3422 transition(atos, atos); | |
| 3423 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3424 __ testptr(rax, rax); // object is in rax |
| 0 | 3425 __ jcc(Assembler::zero, is_null); |
| 3426 | |
| 3427 // Get cpool & tags index | |
| 3428 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3429 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3430 // See if bytecode has already been quicked | |
| 3431 __ cmpb(Address(rdx, rbx, | |
| 3432 Address::times_1, | |
|
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3433 Array<u1>::base_offset_in_bytes()), |
| 0 | 3434 JVM_CONSTANT_Class); |
| 3435 __ jcc(Assembler::equal, quicked); | |
|
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3436 __ push(atos); // save receiver for result, and for GC |
|
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3437 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3438 // vm_result_2 has metadata result |
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|
3439 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3440 __ pop_ptr(rdx); // restore receiver |
| 3441 __ jmpb(resolved); | |
| 3442 | |
| 3443 // Get superklass in rax and subklass in rbx | |
| 3444 __ bind(quicked); | |
| 304 | 3445 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
| 3446 __ movptr(rax, Address(rcx, rbx, | |
|
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3447 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3448 |
| 3449 __ bind(resolved); | |
|
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3450 __ load_klass(rbx, rdx); |
| 0 | 3451 |
| 3452 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
| 3453 // Superklass in rax. Subklass in rbx. | |
| 3454 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 3455 | |
| 3456 // Come here on failure | |
| 3457 __ push_ptr(rdx); | |
| 3458 // object is at TOS | |
| 3459 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
| 3460 | |
| 3461 // Come here on success | |
| 3462 __ bind(ok_is_subtype); | |
| 304 | 3463 __ mov(rax, rdx); // Restore object in rdx |
| 0 | 3464 |
| 3465 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
| 3466 if (ProfileInterpreter) { | |
| 3467 __ jmp(done); | |
| 3468 __ bind(is_null); | |
| 3469 __ profile_null_seen(rcx); | |
| 3470 } else { | |
| 3471 __ bind(is_null); // same as 'done' | |
| 3472 } | |
| 3473 __ bind(done); | |
| 3474 } | |
| 3475 | |
| 3476 void TemplateTable::instanceof() { | |
| 3477 transition(atos, itos); | |
| 3478 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3479 __ testptr(rax, rax); |
| 0 | 3480 __ jcc(Assembler::zero, is_null); |
| 3481 | |
| 3482 // Get cpool & tags index | |
| 3483 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3484 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3485 // See if bytecode has already been quicked | |
| 3486 __ cmpb(Address(rdx, rbx, | |
| 3487 Address::times_1, | |
|
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|
3488 Array<u1>::base_offset_in_bytes()), |
| 0 | 3489 JVM_CONSTANT_Class); |
| 3490 __ jcc(Assembler::equal, quicked); | |
| 3491 | |
|
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3492 __ push(atos); // save receiver for result, and for GC |
|
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3493 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
|
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3494 // vm_result_2 has metadata result |
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|
3495 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3496 __ pop_ptr(rdx); // restore receiver |
|
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3497 __ verify_oop(rdx); |
|
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3498 __ load_klass(rdx, rdx); |
| 0 | 3499 __ jmpb(resolved); |
| 3500 | |
| 3501 // Get superklass in rax and subklass in rdx | |
| 3502 __ bind(quicked); | |
|
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3503 __ load_klass(rdx, rax); |
| 304 | 3504 __ movptr(rax, Address(rcx, rbx, |
|
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3505 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3506 |
| 3507 __ bind(resolved); | |
| 3508 | |
| 3509 // Generate subtype check. Blows rcx, rdi | |
| 3510 // Superklass in rax. Subklass in rdx. | |
| 3511 __ gen_subtype_check(rdx, ok_is_subtype); | |
| 3512 | |
| 3513 // Come here on failure | |
| 3514 __ xorl(rax, rax); | |
| 3515 __ jmpb(done); | |
| 3516 // Come here on success | |
| 3517 __ bind(ok_is_subtype); | |
| 3518 __ movl(rax, 1); | |
| 3519 | |
| 3520 // Collect counts on whether this test sees NULLs a lot or not. | |
| 3521 if (ProfileInterpreter) { | |
| 3522 __ jmp(done); | |
| 3523 __ bind(is_null); | |
| 3524 __ profile_null_seen(rcx); | |
| 3525 } else { | |
| 3526 __ bind(is_null); // same as 'done' | |
| 3527 } | |
| 3528 __ bind(done); | |
| 3529 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
| 3530 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
| 3531 } | |
| 3532 | |
| 3533 //----------------------------------------------------------------------------- | |
| 3534 // Breakpoints | |
| 3535 void TemplateTable::_breakpoint() { | |
| 3536 // Note: We get here even if we are single stepping.. | |
| 3537 // jbug inists on setting breakpoints at every bytecode | |
| 3538 // even if we are in single step mode. | |
| 3539 | |
| 3540 transition(vtos, vtos); | |
| 3541 | |
| 3542 // get the unpatched byte code | |
| 3543 __ get_method(c_rarg1); | |
| 3544 __ call_VM(noreg, | |
| 3545 CAST_FROM_FN_PTR(address, | |
| 3546 InterpreterRuntime::get_original_bytecode_at), | |
| 3547 c_rarg1, r13); | |
| 304 | 3548 __ mov(rbx, rax); |
| 0 | 3549 |
| 3550 // post the breakpoint event | |
| 3551 __ get_method(c_rarg1); | |
| 3552 __ call_VM(noreg, | |
| 3553 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
| 3554 c_rarg1, r13); | |
| 3555 | |
| 3556 // complete the execution of original bytecode | |
| 3557 __ dispatch_only_normal(vtos); | |
| 3558 } | |
| 3559 | |
| 3560 //----------------------------------------------------------------------------- | |
| 3561 // Exceptions | |
| 3562 | |
| 3563 void TemplateTable::athrow() { | |
| 3564 transition(atos, vtos); | |
| 3565 __ null_check(rax); | |
| 3566 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 3567 } | |
| 3568 | |
| 3569 //----------------------------------------------------------------------------- | |
| 3570 // Synchronization | |
| 3571 // | |
| 3572 // Note: monitorenter & exit are symmetric routines; which is reflected | |
| 3573 // in the assembly code structure as well | |
| 3574 // | |
| 3575 // Stack layout: | |
| 3576 // | |
| 3577 // [expressions ] <--- rsp = expression stack top | |
| 3578 // .. | |
| 3579 // [expressions ] | |
| 3580 // [monitor entry] <--- monitor block top = expression stack bot | |
| 3581 // .. | |
| 3582 // [monitor entry] | |
| 3583 // [frame data ] <--- monitor block bot | |
| 3584 // ... | |
| 3585 // [saved rbp ] <--- rbp | |
| 3586 void TemplateTable::monitorenter() { | |
| 3587 transition(atos, vtos); | |
| 3588 | |
| 3589 // check for NULL object | |
| 3590 __ null_check(rax); | |
| 3591 | |
| 3592 const Address monitor_block_top( | |
| 3593 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3594 const Address monitor_block_bot( | |
| 3595 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3596 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3597 | |
| 3598 Label allocated; | |
| 3599 | |
| 3600 // initialize entry pointer | |
| 3601 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
| 3602 | |
| 3603 // find a free slot in the monitor block (result in c_rarg1) | |
| 3604 { | |
| 3605 Label entry, loop, exit; | |
| 304 | 3606 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
| 0 | 3607 // starting with top-most entry |
| 304 | 3608 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3609 // of monitor block |
| 3610 __ jmpb(entry); | |
| 3611 | |
| 3612 __ bind(loop); | |
| 3613 // check if current entry is used | |
| 304 | 3614 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
| 0 | 3615 // if not used then remember entry in c_rarg1 |
| 304 | 3616 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
| 0 | 3617 // check if current entry is for same object |
| 304 | 3618 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3619 // if same object then stop searching |
| 3620 __ jccb(Assembler::equal, exit); | |
| 3621 // otherwise advance to next entry | |
| 304 | 3622 __ addptr(c_rarg3, entry_size); |
| 0 | 3623 __ bind(entry); |
| 3624 // check if bottom reached | |
| 304 | 3625 __ cmpptr(c_rarg3, c_rarg2); |
| 0 | 3626 // if not at bottom then check this entry |
| 3627 __ jcc(Assembler::notEqual, loop); | |
| 3628 __ bind(exit); | |
| 3629 } | |
| 3630 | |
| 304 | 3631 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
| 0 | 3632 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
| 3633 | |
| 3634 // allocate one if there's no free slot | |
| 3635 { | |
| 3636 Label entry, loop; | |
| 304 | 3637 // 1. compute new pointers // rsp: old expression stack top |
| 3638 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
| 3639 __ subptr(rsp, entry_size); // move expression stack top | |
| 3640 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
| 3641 __ mov(c_rarg3, rsp); // set start value for copy loop | |
| 3642 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
| 0 | 3643 __ jmp(entry); |
| 3644 // 2. move expression stack contents | |
| 3645 __ bind(loop); | |
| 304 | 3646 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
| 3647 // word from old location | |
| 3648 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
| 3649 __ addptr(c_rarg3, wordSize); // advance to next word | |
| 0 | 3650 __ bind(entry); |
| 304 | 3651 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
| 0 | 3652 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
| 3653 // copy next word | |
| 3654 } | |
| 3655 | |
| 3656 // call run-time routine | |
| 3657 // c_rarg1: points to monitor entry | |
| 3658 __ bind(allocated); | |
| 3659 | |
| 3660 // Increment bcp to point to the next bytecode, so exception | |
| 3661 // handling for async. exceptions work correctly. | |
| 3662 // The object has already been poped from the stack, so the | |
| 3663 // expression stack looks correct. | |
| 304 | 3664 __ increment(r13); |
| 0 | 3665 |
| 3666 // store object | |
| 304 | 3667 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 0 | 3668 __ lock_object(c_rarg1); |
| 3669 | |
| 3670 // check to make sure this monitor doesn't cause stack overflow after locking | |
| 3671 __ save_bcp(); // in case of exception | |
| 3672 __ generate_stack_overflow_check(0); | |
| 3673 | |
| 3674 // The bcp has already been incremented. Just need to dispatch to | |
| 3675 // next instruction. | |
| 3676 __ dispatch_next(vtos); | |
| 3677 } | |
| 3678 | |
| 3679 | |
| 3680 void TemplateTable::monitorexit() { | |
| 3681 transition(atos, vtos); | |
| 3682 | |
| 3683 // check for NULL object | |
| 3684 __ null_check(rax); | |
| 3685 | |
| 3686 const Address monitor_block_top( | |
| 3687 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3688 const Address monitor_block_bot( | |
| 3689 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3690 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3691 | |
| 3692 Label found; | |
| 3693 | |
| 3694 // find matching slot | |
| 3695 { | |
| 3696 Label entry, loop; | |
| 304 | 3697 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
| 0 | 3698 // starting with top-most entry |
| 304 | 3699 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3700 // of monitor block |
| 3701 __ jmpb(entry); | |
| 3702 | |
| 3703 __ bind(loop); | |
| 3704 // check if current entry is for same object | |
| 304 | 3705 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3706 // if same object then stop searching |
| 3707 __ jcc(Assembler::equal, found); | |
| 3708 // otherwise advance to next entry | |
| 304 | 3709 __ addptr(c_rarg1, entry_size); |
| 0 | 3710 __ bind(entry); |
| 3711 // check if bottom reached | |
| 304 | 3712 __ cmpptr(c_rarg1, c_rarg2); |
| 0 | 3713 // if not at bottom then check this entry |
| 3714 __ jcc(Assembler::notEqual, loop); | |
| 3715 } | |
| 3716 | |
| 3717 // error handling. Unlocking was not block-structured | |
| 3718 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 3719 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3720 __ should_not_reach_here(); | |
| 3721 | |
| 3722 // call run-time routine | |
| 3723 // rsi: points to monitor entry | |
| 3724 __ bind(found); | |
| 3725 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
| 3726 __ unlock_object(c_rarg1); | |
| 3727 __ pop_ptr(rax); // discard object | |
| 3728 } | |
| 3729 | |
| 3730 | |
| 3731 // Wide instructions | |
| 3732 void TemplateTable::wide() { | |
| 3733 transition(vtos, vtos); | |
| 3734 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 3735 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
| 3736 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
| 3737 // Note: the r13 increment step is part of the individual wide | |
| 3738 // bytecode implementations | |
| 3739 } | |
| 3740 | |
| 3741 | |
| 3742 // Multi arrays | |
| 3743 void TemplateTable::multianewarray() { | |
| 3744 transition(vtos, atos); | |
| 3745 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
| 3746 // last dim is on top of stack; we want address of first one: | |
| 3747 // first_addr = last_addr + (ndims - 1) * wordSize | |
| 304 | 3748 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
| 0 | 3749 call_VM(rax, |
| 3750 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
| 3751 c_rarg1); | |
| 3752 __ load_unsigned_byte(rbx, at_bcp(3)); | |
| 304 | 3753 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 3754 } |
| 304 | 3755 #endif // !CC_INTERP |