Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 10105:aeaca88565e6
8010862: The Method counter fields used for profiling can be allocated lazily.
Summary: Allocate the method's profiling related metadata until they are needed.
Reviewed-by: coleenp, roland
| author | jiangli |
|---|---|
| date | Tue, 09 Apr 2013 17:17:41 -0400 |
| parents | db9981fd3124 |
| children | 9500809ceead |
| 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 __ store_heap_oop(Address(rdx, 0), val); |
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162 __ g1_write_barrier_post(rdx /* store_adr */, |
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163 val /* new_val */, |
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164 r15_thread /* thread */, |
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165 r8 /* tmp */, |
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166 rbx /* tmp2 */); |
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167 } |
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168 |
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169 } |
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170 break; |
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171 #endif // INCLUDE_ALL_GCS |
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172 case BarrierSet::CardTableModRef: |
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173 case BarrierSet::CardTableExtension: |
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174 { |
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175 if (val == noreg) { |
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176 __ store_heap_oop_null(obj); |
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177 } else { |
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178 __ store_heap_oop(obj, val); |
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179 // flatten object address if needed |
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180 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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181 __ store_check(obj.base()); |
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182 } else { |
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183 __ leaq(rdx, obj); |
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184 __ store_check(rdx); |
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185 } |
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186 } |
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187 } |
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188 break; |
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189 case BarrierSet::ModRef: |
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190 case BarrierSet::Other: |
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191 if (val == noreg) { |
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192 __ store_heap_oop_null(obj); |
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193 } else { |
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194 __ store_heap_oop(obj, val); |
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195 } |
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196 break; |
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197 default : |
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198 ShouldNotReachHere(); |
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199 |
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200 } |
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201 } |
| 0 | 202 |
| 203 Address TemplateTable::at_bcp(int offset) { | |
| 204 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 205 return Address(r13, offset); | |
| 206 } | |
| 207 | |
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208 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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209 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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210 int byte_no) { |
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211 if (!RewriteBytecodes) return; |
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212 Label L_patch_done; |
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213 |
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214 switch (bc) { |
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215 case Bytecodes::_fast_aputfield: |
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216 case Bytecodes::_fast_bputfield: |
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217 case Bytecodes::_fast_cputfield: |
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218 case Bytecodes::_fast_dputfield: |
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219 case Bytecodes::_fast_fputfield: |
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220 case Bytecodes::_fast_iputfield: |
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221 case Bytecodes::_fast_lputfield: |
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222 case Bytecodes::_fast_sputfield: |
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223 { |
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224 // We skip bytecode quickening for putfield instructions when |
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225 // the put_code written to the constant pool cache is zero. |
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226 // This is required so that every execution of this instruction |
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227 // calls out to InterpreterRuntime::resolve_get_put to do |
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228 // additional, required work. |
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229 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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230 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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231 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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232 __ movl(bc_reg, bc); |
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233 __ cmpl(temp_reg, (int) 0); |
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234 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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235 } |
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236 break; |
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237 default: |
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238 assert(byte_no == -1, "sanity"); |
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239 // the pair bytecodes have already done the load. |
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240 if (load_bc_into_bc_reg) { |
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241 __ movl(bc_reg, bc); |
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242 } |
| 0 | 243 } |
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244 |
| 0 | 245 if (JvmtiExport::can_post_breakpoint()) { |
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246 Label L_fast_patch; |
| 0 | 247 // if a breakpoint is present we can't rewrite the stream directly |
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248 __ movzbl(temp_reg, at_bcp(0)); |
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249 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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250 __ jcc(Assembler::notEqual, L_fast_patch); |
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251 __ get_method(temp_reg); |
| 0 | 252 // Let breakpoint table handling rewrite to quicker bytecode |
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253 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
| 0 | 254 #ifndef ASSERT |
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255 __ jmpb(L_patch_done); |
| 1108 | 256 #else |
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257 __ jmp(L_patch_done); |
| 1108 | 258 #endif |
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259 __ bind(L_fast_patch); |
| 0 | 260 } |
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261 |
| 1108 | 262 #ifdef ASSERT |
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263 Label L_okay; |
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264 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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265 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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266 __ jcc(Assembler::equal, L_okay); |
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267 __ cmpl(temp_reg, bc_reg); |
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268 __ jcc(Assembler::equal, L_okay); |
| 0 | 269 __ stop("patching the wrong bytecode"); |
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270 __ bind(L_okay); |
| 0 | 271 #endif |
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272 |
| 0 | 273 // patch bytecode |
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274 __ movb(at_bcp(0), bc_reg); |
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275 __ bind(L_patch_done); |
| 0 | 276 } |
| 277 | |
| 278 | |
| 279 // Individual instructions | |
| 280 | |
| 281 void TemplateTable::nop() { | |
| 282 transition(vtos, vtos); | |
| 283 // nothing to do | |
| 284 } | |
| 285 | |
| 286 void TemplateTable::shouldnotreachhere() { | |
| 287 transition(vtos, vtos); | |
| 288 __ stop("shouldnotreachhere bytecode"); | |
| 289 } | |
| 290 | |
| 291 void TemplateTable::aconst_null() { | |
| 292 transition(vtos, atos); | |
| 293 __ xorl(rax, rax); | |
| 294 } | |
| 295 | |
| 296 void TemplateTable::iconst(int value) { | |
| 297 transition(vtos, itos); | |
| 298 if (value == 0) { | |
| 299 __ xorl(rax, rax); | |
| 300 } else { | |
| 301 __ movl(rax, value); | |
| 302 } | |
| 303 } | |
| 304 | |
| 305 void TemplateTable::lconst(int value) { | |
| 306 transition(vtos, ltos); | |
| 307 if (value == 0) { | |
| 308 __ xorl(rax, rax); | |
| 309 } else { | |
| 310 __ movl(rax, value); | |
| 311 } | |
| 312 } | |
| 313 | |
| 314 void TemplateTable::fconst(int value) { | |
| 315 transition(vtos, ftos); | |
| 316 static float one = 1.0f, two = 2.0f; | |
| 317 switch (value) { | |
| 318 case 0: | |
| 319 __ xorps(xmm0, xmm0); | |
| 320 break; | |
| 321 case 1: | |
| 322 __ movflt(xmm0, ExternalAddress((address) &one)); | |
| 323 break; | |
| 324 case 2: | |
| 325 __ movflt(xmm0, ExternalAddress((address) &two)); | |
| 326 break; | |
| 327 default: | |
| 328 ShouldNotReachHere(); | |
| 329 break; | |
| 330 } | |
| 331 } | |
| 332 | |
| 333 void TemplateTable::dconst(int value) { | |
| 334 transition(vtos, dtos); | |
| 335 static double one = 1.0; | |
| 336 switch (value) { | |
| 337 case 0: | |
| 338 __ xorpd(xmm0, xmm0); | |
| 339 break; | |
| 340 case 1: | |
| 341 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
| 342 break; | |
| 343 default: | |
| 344 ShouldNotReachHere(); | |
| 345 break; | |
| 346 } | |
| 347 } | |
| 348 | |
| 349 void TemplateTable::bipush() { | |
| 350 transition(vtos, itos); | |
| 351 __ load_signed_byte(rax, at_bcp(1)); | |
| 352 } | |
| 353 | |
| 354 void TemplateTable::sipush() { | |
| 355 transition(vtos, itos); | |
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356 __ load_unsigned_short(rax, at_bcp(1)); |
| 0 | 357 __ bswapl(rax); |
| 358 __ sarl(rax, 16); | |
| 359 } | |
| 360 | |
| 361 void TemplateTable::ldc(bool wide) { | |
| 362 transition(vtos, vtos); | |
| 363 Label call_ldc, notFloat, notClass, Done; | |
| 364 | |
| 365 if (wide) { | |
| 366 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 367 } else { | |
| 368 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 369 } | |
| 370 | |
| 371 __ get_cpool_and_tags(rcx, rax); | |
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372 const int base_offset = ConstantPool::header_size() * wordSize; |
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373 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 374 |
| 375 // get type | |
| 376 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
| 377 | |
| 378 // unresolved class - get the resolved class | |
| 379 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
| 380 __ jccb(Assembler::equal, call_ldc); | |
| 381 | |
| 382 // unresolved class in error state - call into runtime to throw the error | |
| 383 // from the first resolution attempt | |
| 384 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
| 385 __ jccb(Assembler::equal, call_ldc); | |
| 386 | |
| 387 // resolved class - need to call vm to get java mirror of the class | |
| 388 __ cmpl(rdx, JVM_CONSTANT_Class); | |
| 389 __ jcc(Assembler::notEqual, notClass); | |
| 390 | |
| 391 __ bind(call_ldc); | |
| 392 __ movl(c_rarg1, wide); | |
| 393 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
| 394 __ push_ptr(rax); | |
| 395 __ verify_oop(rax); | |
| 396 __ jmp(Done); | |
| 397 | |
| 398 __ bind(notClass); | |
| 399 __ cmpl(rdx, JVM_CONSTANT_Float); | |
| 400 __ jccb(Assembler::notEqual, notFloat); | |
| 401 // ftos | |
| 402 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 403 __ push_f(); | |
| 404 __ jmp(Done); | |
| 405 | |
| 406 __ bind(notFloat); | |
| 407 #ifdef ASSERT | |
| 408 { | |
| 409 Label L; | |
| 410 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
| 411 __ jcc(Assembler::equal, L); | |
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412 // String and Object are rewritten to fast_aldc |
| 0 | 413 __ stop("unexpected tag type in ldc"); |
| 414 __ bind(L); | |
| 415 } | |
| 416 #endif | |
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417 // itos JVM_CONSTANT_Integer only |
| 0 | 418 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
| 419 __ push_i(rax); | |
| 420 __ bind(Done); | |
| 421 } | |
| 422 | |
| 1602 | 423 // Fast path for caching oop constants. |
| 424 void TemplateTable::fast_aldc(bool wide) { | |
| 425 transition(vtos, atos); | |
| 426 | |
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427 Register result = rax; |
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428 Register tmp = rdx; |
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429 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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430 |
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431 Label resolved; |
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432 |
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433 // We are resolved if the resolved reference cache entry contains a |
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434 // non-null object (String, MethodType, etc.) |
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435 assert_different_registers(result, tmp); |
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436 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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437 __ load_resolved_reference_at_index(result, tmp); |
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438 __ testl(result, result); |
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439 __ jcc(Assembler::notZero, resolved); |
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440 |
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441 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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442 |
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443 // first time invocation - must resolve first |
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444 __ movl(tmp, (int)bytecode()); |
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445 __ call_VM(result, entry, tmp); |
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446 |
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447 __ bind(resolved); |
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448 |
| 1602 | 449 if (VerifyOops) { |
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450 __ verify_oop(result); |
| 1602 | 451 } |
| 452 } | |
| 453 | |
| 0 | 454 void TemplateTable::ldc2_w() { |
| 455 transition(vtos, vtos); | |
| 456 Label Long, Done; | |
| 457 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 458 | |
| 459 __ get_cpool_and_tags(rcx, rax); | |
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460 const int base_offset = ConstantPool::header_size() * wordSize; |
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461 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 462 |
| 463 // get type | |
| 464 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
| 465 JVM_CONSTANT_Double); | |
| 466 __ jccb(Assembler::notEqual, Long); | |
| 467 // dtos | |
| 468 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 469 __ push_d(); | |
| 470 __ jmpb(Done); | |
| 471 | |
| 472 __ bind(Long); | |
| 473 // ltos | |
| 474 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 475 __ push_l(); | |
| 476 | |
| 477 __ bind(Done); | |
| 478 } | |
| 479 | |
| 480 void TemplateTable::locals_index(Register reg, int offset) { | |
| 481 __ load_unsigned_byte(reg, at_bcp(offset)); | |
| 304 | 482 __ negptr(reg); |
| 0 | 483 } |
| 484 | |
| 485 void TemplateTable::iload() { | |
| 486 transition(vtos, itos); | |
| 487 if (RewriteFrequentPairs) { | |
| 488 Label rewrite, done; | |
| 489 const Register bc = c_rarg3; | |
| 490 assert(rbx != bc, "register damaged"); | |
| 491 | |
| 492 // get next byte | |
| 493 __ load_unsigned_byte(rbx, | |
| 494 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
| 495 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 496 // last two iloads in a pair. Comparing against fast_iload means that | |
| 497 // the next bytecode is neither an iload or a caload, and therefore | |
| 498 // an iload pair. | |
| 499 __ cmpl(rbx, Bytecodes::_iload); | |
| 500 __ jcc(Assembler::equal, done); | |
| 501 | |
| 502 __ cmpl(rbx, Bytecodes::_fast_iload); | |
| 503 __ movl(bc, Bytecodes::_fast_iload2); | |
| 504 __ jccb(Assembler::equal, rewrite); | |
| 505 | |
| 506 // if _caload, rewrite to fast_icaload | |
| 507 __ cmpl(rbx, Bytecodes::_caload); | |
| 508 __ movl(bc, Bytecodes::_fast_icaload); | |
| 509 __ jccb(Assembler::equal, rewrite); | |
| 510 | |
| 511 // rewrite so iload doesn't check again. | |
| 512 __ movl(bc, Bytecodes::_fast_iload); | |
| 513 | |
| 514 // rewrite | |
| 515 // bc: fast bytecode | |
| 516 __ bind(rewrite); | |
| 517 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
| 518 __ bind(done); | |
| 519 } | |
| 520 | |
| 521 // Get the local value into tos | |
| 522 locals_index(rbx); | |
| 523 __ movl(rax, iaddress(rbx)); | |
| 524 } | |
| 525 | |
| 526 void TemplateTable::fast_iload2() { | |
| 527 transition(vtos, itos); | |
| 528 locals_index(rbx); | |
| 529 __ movl(rax, iaddress(rbx)); | |
| 530 __ push(itos); | |
| 531 locals_index(rbx, 3); | |
| 532 __ movl(rax, iaddress(rbx)); | |
| 533 } | |
| 534 | |
| 535 void TemplateTable::fast_iload() { | |
| 536 transition(vtos, itos); | |
| 537 locals_index(rbx); | |
| 538 __ movl(rax, iaddress(rbx)); | |
| 539 } | |
| 540 | |
| 541 void TemplateTable::lload() { | |
| 542 transition(vtos, ltos); | |
| 543 locals_index(rbx); | |
| 544 __ movq(rax, laddress(rbx)); | |
| 545 } | |
| 546 | |
| 547 void TemplateTable::fload() { | |
| 548 transition(vtos, ftos); | |
| 549 locals_index(rbx); | |
| 550 __ movflt(xmm0, faddress(rbx)); | |
| 551 } | |
| 552 | |
| 553 void TemplateTable::dload() { | |
| 554 transition(vtos, dtos); | |
| 555 locals_index(rbx); | |
| 556 __ movdbl(xmm0, daddress(rbx)); | |
| 557 } | |
| 558 | |
| 559 void TemplateTable::aload() { | |
| 560 transition(vtos, atos); | |
| 561 locals_index(rbx); | |
| 304 | 562 __ movptr(rax, aaddress(rbx)); |
| 0 | 563 } |
| 564 | |
| 565 void TemplateTable::locals_index_wide(Register reg) { | |
| 566 __ movl(reg, at_bcp(2)); | |
| 567 __ bswapl(reg); | |
| 568 __ shrl(reg, 16); | |
| 304 | 569 __ negptr(reg); |
| 0 | 570 } |
| 571 | |
| 572 void TemplateTable::wide_iload() { | |
| 573 transition(vtos, itos); | |
| 574 locals_index_wide(rbx); | |
| 575 __ movl(rax, iaddress(rbx)); | |
| 576 } | |
| 577 | |
| 578 void TemplateTable::wide_lload() { | |
| 579 transition(vtos, ltos); | |
| 580 locals_index_wide(rbx); | |
| 581 __ movq(rax, laddress(rbx)); | |
| 582 } | |
| 583 | |
| 584 void TemplateTable::wide_fload() { | |
| 585 transition(vtos, ftos); | |
| 586 locals_index_wide(rbx); | |
| 587 __ movflt(xmm0, faddress(rbx)); | |
| 588 } | |
| 589 | |
| 590 void TemplateTable::wide_dload() { | |
| 591 transition(vtos, dtos); | |
| 592 locals_index_wide(rbx); | |
| 593 __ movdbl(xmm0, daddress(rbx)); | |
| 594 } | |
| 595 | |
| 596 void TemplateTable::wide_aload() { | |
| 597 transition(vtos, atos); | |
| 598 locals_index_wide(rbx); | |
| 304 | 599 __ movptr(rax, aaddress(rbx)); |
| 0 | 600 } |
| 601 | |
| 602 void TemplateTable::index_check(Register array, Register index) { | |
| 603 // destroys rbx | |
| 604 // check array | |
| 605 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
| 606 // sign extend index for use by indexed load | |
| 304 | 607 __ movl2ptr(index, index); |
| 0 | 608 // check index |
| 609 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
| 610 if (index != rbx) { | |
| 611 // ??? convention: move aberrant index into ebx for exception message | |
| 612 assert(rbx != array, "different registers"); | |
| 613 __ movl(rbx, index); | |
| 614 } | |
| 615 __ jump_cc(Assembler::aboveEqual, | |
| 616 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
| 617 } | |
| 618 | |
| 619 void TemplateTable::iaload() { | |
| 620 transition(itos, itos); | |
| 621 __ pop_ptr(rdx); | |
| 622 // eax: index | |
| 623 // rdx: array | |
| 624 index_check(rdx, rax); // kills rbx | |
| 625 __ movl(rax, Address(rdx, rax, | |
| 626 Address::times_4, | |
| 627 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 628 } | |
| 629 | |
| 630 void TemplateTable::laload() { | |
| 631 transition(itos, ltos); | |
| 632 __ pop_ptr(rdx); | |
| 633 // eax: index | |
| 634 // rdx: array | |
| 635 index_check(rdx, rax); // kills rbx | |
| 636 __ movq(rax, Address(rdx, rbx, | |
| 637 Address::times_8, | |
| 638 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
| 639 } | |
| 640 | |
| 641 void TemplateTable::faload() { | |
| 642 transition(itos, ftos); | |
| 643 __ pop_ptr(rdx); | |
| 644 // eax: index | |
| 645 // rdx: array | |
| 646 index_check(rdx, rax); // kills rbx | |
| 647 __ movflt(xmm0, Address(rdx, rax, | |
| 648 Address::times_4, | |
| 649 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 650 } | |
| 651 | |
| 652 void TemplateTable::daload() { | |
| 653 transition(itos, dtos); | |
| 654 __ pop_ptr(rdx); | |
| 655 // eax: index | |
| 656 // rdx: array | |
| 657 index_check(rdx, rax); // kills rbx | |
| 658 __ movdbl(xmm0, Address(rdx, rax, | |
| 659 Address::times_8, | |
| 660 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 661 } | |
| 662 | |
| 663 void TemplateTable::aaload() { | |
| 664 transition(itos, atos); | |
| 665 __ pop_ptr(rdx); | |
| 666 // eax: index | |
| 667 // rdx: array | |
| 668 index_check(rdx, rax); // kills rbx | |
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669 __ load_heap_oop(rax, Address(rdx, rax, |
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670 UseCompressedOops ? Address::times_4 : Address::times_8, |
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671 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 0 | 672 } |
| 673 | |
| 674 void TemplateTable::baload() { | |
| 675 transition(itos, itos); | |
| 676 __ pop_ptr(rdx); | |
| 677 // eax: index | |
| 678 // rdx: array | |
| 679 index_check(rdx, rax); // kills rbx | |
| 680 __ load_signed_byte(rax, | |
| 681 Address(rdx, rax, | |
| 682 Address::times_1, | |
| 683 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
| 684 } | |
| 685 | |
| 686 void TemplateTable::caload() { | |
| 687 transition(itos, itos); | |
| 688 __ pop_ptr(rdx); | |
| 689 // eax: index | |
| 690 // rdx: array | |
| 691 index_check(rdx, rax); // kills rbx | |
|
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692 __ load_unsigned_short(rax, |
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693 Address(rdx, rax, |
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694 Address::times_2, |
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695 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 696 } |
| 697 | |
| 698 // iload followed by caload frequent pair | |
| 699 void TemplateTable::fast_icaload() { | |
| 700 transition(vtos, itos); | |
| 701 // load index out of locals | |
| 702 locals_index(rbx); | |
| 703 __ movl(rax, iaddress(rbx)); | |
| 704 | |
| 705 // eax: index | |
| 706 // rdx: array | |
| 707 __ pop_ptr(rdx); | |
| 708 index_check(rdx, rax); // kills rbx | |
|
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709 __ load_unsigned_short(rax, |
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710 Address(rdx, rax, |
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711 Address::times_2, |
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712 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 713 } |
| 714 | |
| 715 void TemplateTable::saload() { | |
| 716 transition(itos, itos); | |
| 717 __ pop_ptr(rdx); | |
| 718 // eax: index | |
| 719 // rdx: array | |
| 720 index_check(rdx, rax); // kills rbx | |
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721 __ load_signed_short(rax, |
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722 Address(rdx, rax, |
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723 Address::times_2, |
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724 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
| 0 | 725 } |
| 726 | |
| 727 void TemplateTable::iload(int n) { | |
| 728 transition(vtos, itos); | |
| 729 __ movl(rax, iaddress(n)); | |
| 730 } | |
| 731 | |
| 732 void TemplateTable::lload(int n) { | |
| 733 transition(vtos, ltos); | |
| 734 __ movq(rax, laddress(n)); | |
| 735 } | |
| 736 | |
| 737 void TemplateTable::fload(int n) { | |
| 738 transition(vtos, ftos); | |
| 739 __ movflt(xmm0, faddress(n)); | |
| 740 } | |
| 741 | |
| 742 void TemplateTable::dload(int n) { | |
| 743 transition(vtos, dtos); | |
| 744 __ movdbl(xmm0, daddress(n)); | |
| 745 } | |
| 746 | |
| 747 void TemplateTable::aload(int n) { | |
| 748 transition(vtos, atos); | |
| 304 | 749 __ movptr(rax, aaddress(n)); |
| 0 | 750 } |
| 751 | |
| 752 void TemplateTable::aload_0() { | |
| 753 transition(vtos, atos); | |
| 754 // According to bytecode histograms, the pairs: | |
| 755 // | |
| 756 // _aload_0, _fast_igetfield | |
| 757 // _aload_0, _fast_agetfield | |
| 758 // _aload_0, _fast_fgetfield | |
| 759 // | |
| 760 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
| 761 // _aload_0 bytecode checks if the next bytecode is either | |
| 762 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
| 763 // rewrites the current bytecode into a pair bytecode; otherwise it | |
| 764 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
| 765 // the pair check anymore. | |
| 766 // | |
| 767 // Note: If the next bytecode is _getfield, the rewrite must be | |
| 768 // delayed, otherwise we may miss an opportunity for a pair. | |
| 769 // | |
| 770 // Also rewrite frequent pairs | |
| 771 // aload_0, aload_1 | |
| 772 // aload_0, iload_1 | |
| 773 // These bytecodes with a small amount of code are most profitable | |
| 774 // to rewrite | |
| 775 if (RewriteFrequentPairs) { | |
| 776 Label rewrite, done; | |
| 777 const Register bc = c_rarg3; | |
| 778 assert(rbx != bc, "register damaged"); | |
| 779 // get next byte | |
| 780 __ load_unsigned_byte(rbx, | |
| 781 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
| 782 | |
| 783 // do actual aload_0 | |
| 784 aload(0); | |
| 785 | |
| 786 // if _getfield then wait with rewrite | |
| 787 __ cmpl(rbx, Bytecodes::_getfield); | |
| 788 __ jcc(Assembler::equal, done); | |
| 789 | |
| 790 // if _igetfield then reqrite to _fast_iaccess_0 | |
| 791 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
| 792 Bytecodes::_aload_0, | |
| 793 "fix bytecode definition"); | |
| 794 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
| 795 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
| 796 __ jccb(Assembler::equal, rewrite); | |
| 797 | |
| 798 // if _agetfield then reqrite to _fast_aaccess_0 | |
| 799 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
| 800 Bytecodes::_aload_0, | |
| 801 "fix bytecode definition"); | |
| 802 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
| 803 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
| 804 __ jccb(Assembler::equal, rewrite); | |
| 805 | |
| 806 // if _fgetfield then reqrite to _fast_faccess_0 | |
| 807 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
| 808 Bytecodes::_aload_0, | |
| 809 "fix bytecode definition"); | |
| 810 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
| 811 __ movl(bc, Bytecodes::_fast_faccess_0); | |
| 812 __ jccb(Assembler::equal, rewrite); | |
| 813 | |
| 814 // else rewrite to _fast_aload0 | |
| 815 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
| 816 Bytecodes::_aload_0, | |
| 817 "fix bytecode definition"); | |
| 818 __ movl(bc, Bytecodes::_fast_aload_0); | |
| 819 | |
| 820 // rewrite | |
| 821 // bc: fast bytecode | |
| 822 __ bind(rewrite); | |
| 823 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
| 824 | |
| 825 __ bind(done); | |
| 826 } else { | |
| 827 aload(0); | |
| 828 } | |
| 829 } | |
| 830 | |
| 831 void TemplateTable::istore() { | |
| 832 transition(itos, vtos); | |
| 833 locals_index(rbx); | |
| 834 __ movl(iaddress(rbx), rax); | |
| 835 } | |
| 836 | |
| 837 void TemplateTable::lstore() { | |
| 838 transition(ltos, vtos); | |
| 839 locals_index(rbx); | |
| 840 __ movq(laddress(rbx), rax); | |
| 841 } | |
| 842 | |
| 843 void TemplateTable::fstore() { | |
| 844 transition(ftos, vtos); | |
| 845 locals_index(rbx); | |
| 846 __ movflt(faddress(rbx), xmm0); | |
| 847 } | |
| 848 | |
| 849 void TemplateTable::dstore() { | |
| 850 transition(dtos, vtos); | |
| 851 locals_index(rbx); | |
| 852 __ movdbl(daddress(rbx), xmm0); | |
| 853 } | |
| 854 | |
| 855 void TemplateTable::astore() { | |
| 856 transition(vtos, vtos); | |
| 1506 | 857 __ pop_ptr(rax); |
| 0 | 858 locals_index(rbx); |
| 304 | 859 __ movptr(aaddress(rbx), rax); |
| 0 | 860 } |
| 861 | |
| 862 void TemplateTable::wide_istore() { | |
| 863 transition(vtos, vtos); | |
| 864 __ pop_i(); | |
| 865 locals_index_wide(rbx); | |
| 866 __ movl(iaddress(rbx), rax); | |
| 867 } | |
| 868 | |
| 869 void TemplateTable::wide_lstore() { | |
| 870 transition(vtos, vtos); | |
| 871 __ pop_l(); | |
| 872 locals_index_wide(rbx); | |
| 873 __ movq(laddress(rbx), rax); | |
| 874 } | |
| 875 | |
| 876 void TemplateTable::wide_fstore() { | |
| 877 transition(vtos, vtos); | |
| 878 __ pop_f(); | |
| 879 locals_index_wide(rbx); | |
| 880 __ movflt(faddress(rbx), xmm0); | |
| 881 } | |
| 882 | |
| 883 void TemplateTable::wide_dstore() { | |
| 884 transition(vtos, vtos); | |
| 885 __ pop_d(); | |
| 886 locals_index_wide(rbx); | |
| 887 __ movdbl(daddress(rbx), xmm0); | |
| 888 } | |
| 889 | |
| 890 void TemplateTable::wide_astore() { | |
| 891 transition(vtos, vtos); | |
| 1506 | 892 __ pop_ptr(rax); |
| 0 | 893 locals_index_wide(rbx); |
| 304 | 894 __ movptr(aaddress(rbx), rax); |
| 0 | 895 } |
| 896 | |
| 897 void TemplateTable::iastore() { | |
| 898 transition(itos, vtos); | |
| 899 __ pop_i(rbx); | |
| 900 __ pop_ptr(rdx); | |
| 901 // eax: value | |
| 902 // ebx: index | |
| 903 // rdx: array | |
| 904 index_check(rdx, rbx); // prefer index in ebx | |
| 905 __ movl(Address(rdx, rbx, | |
| 906 Address::times_4, | |
| 907 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
| 908 rax); | |
| 909 } | |
| 910 | |
| 911 void TemplateTable::lastore() { | |
| 912 transition(ltos, vtos); | |
| 913 __ pop_i(rbx); | |
| 914 __ pop_ptr(rdx); | |
| 915 // rax: value | |
| 916 // ebx: index | |
| 917 // rdx: array | |
| 918 index_check(rdx, rbx); // prefer index in ebx | |
| 919 __ movq(Address(rdx, rbx, | |
| 920 Address::times_8, | |
| 921 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
| 922 rax); | |
| 923 } | |
| 924 | |
| 925 void TemplateTable::fastore() { | |
| 926 transition(ftos, vtos); | |
| 927 __ pop_i(rbx); | |
| 928 __ pop_ptr(rdx); | |
| 929 // xmm0: value | |
| 930 // ebx: index | |
| 931 // rdx: array | |
| 932 index_check(rdx, rbx); // prefer index in ebx | |
| 933 __ movflt(Address(rdx, rbx, | |
| 934 Address::times_4, | |
| 935 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
| 936 xmm0); | |
| 937 } | |
| 938 | |
| 939 void TemplateTable::dastore() { | |
| 940 transition(dtos, vtos); | |
| 941 __ pop_i(rbx); | |
| 942 __ pop_ptr(rdx); | |
| 943 // xmm0: value | |
| 944 // ebx: index | |
| 945 // rdx: array | |
| 946 index_check(rdx, rbx); // prefer index in ebx | |
| 947 __ movdbl(Address(rdx, rbx, | |
| 948 Address::times_8, | |
| 949 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
| 950 xmm0); | |
| 951 } | |
| 952 | |
| 953 void TemplateTable::aastore() { | |
| 954 Label is_null, ok_is_subtype, done; | |
| 955 transition(vtos, vtos); | |
| 956 // stack: ..., array, index, value | |
| 304 | 957 __ movptr(rax, at_tos()); // value |
| 0 | 958 __ movl(rcx, at_tos_p1()); // index |
| 304 | 959 __ movptr(rdx, at_tos_p2()); // array |
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960 |
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961 Address element_address(rdx, rcx, |
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962 UseCompressedOops? Address::times_4 : Address::times_8, |
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963 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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964 |
| 0 | 965 index_check(rdx, rcx); // kills rbx |
| 966 // do array store check - check for NULL value first | |
| 304 | 967 __ testptr(rax, rax); |
| 0 | 968 __ jcc(Assembler::zero, is_null); |
| 969 | |
| 970 // Move subklass into rbx | |
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971 __ load_klass(rbx, rax); |
| 0 | 972 // Move superklass into rax |
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973 __ load_klass(rax, rdx); |
| 304 | 974 __ movptr(rax, Address(rax, |
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975 ObjArrayKlass::element_klass_offset())); |
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976 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
| 362 | 977 __ lea(rdx, element_address); |
| 0 | 978 |
| 979 // Generate subtype check. Blows rcx, rdi | |
| 980 // Superklass in rax. Subklass in rbx. | |
| 981 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 982 | |
| 983 // Come here on failure | |
| 984 // object is at TOS | |
| 985 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
| 986 | |
| 987 // Come here on success | |
| 988 __ bind(ok_is_subtype); | |
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989 |
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990 // Get the value we will store |
| 362 | 991 __ movptr(rax, at_tos()); |
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992 // Now store using the appropriate barrier |
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993 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
| 0 | 994 __ jmp(done); |
| 995 | |
| 996 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
| 997 __ bind(is_null); | |
| 998 __ profile_null_seen(rbx); | |
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999 |
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1000 // Store a NULL |
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|
1001 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
| 0 | 1002 |
| 1003 // Pop stack arguments | |
| 1004 __ bind(done); | |
| 1506 | 1005 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
| 0 | 1006 } |
| 1007 | |
| 1008 void TemplateTable::bastore() { | |
| 1009 transition(itos, vtos); | |
| 1010 __ pop_i(rbx); | |
| 1011 __ pop_ptr(rdx); | |
| 1012 // eax: value | |
| 1013 // ebx: index | |
| 1014 // rdx: array | |
| 1015 index_check(rdx, rbx); // prefer index in ebx | |
| 1016 __ movb(Address(rdx, rbx, | |
| 1017 Address::times_1, | |
| 1018 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
| 1019 rax); | |
| 1020 } | |
| 1021 | |
| 1022 void TemplateTable::castore() { | |
| 1023 transition(itos, vtos); | |
| 1024 __ pop_i(rbx); | |
| 1025 __ pop_ptr(rdx); | |
| 1026 // eax: value | |
| 1027 // ebx: index | |
| 1028 // rdx: array | |
| 1029 index_check(rdx, rbx); // prefer index in ebx | |
| 1030 __ movw(Address(rdx, rbx, | |
| 1031 Address::times_2, | |
| 1032 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
| 1033 rax); | |
| 1034 } | |
| 1035 | |
| 1036 void TemplateTable::sastore() { | |
| 1037 castore(); | |
| 1038 } | |
| 1039 | |
| 1040 void TemplateTable::istore(int n) { | |
| 1041 transition(itos, vtos); | |
| 1042 __ movl(iaddress(n), rax); | |
| 1043 } | |
| 1044 | |
| 1045 void TemplateTable::lstore(int n) { | |
| 1046 transition(ltos, vtos); | |
| 1047 __ movq(laddress(n), rax); | |
| 1048 } | |
| 1049 | |
| 1050 void TemplateTable::fstore(int n) { | |
| 1051 transition(ftos, vtos); | |
| 1052 __ movflt(faddress(n), xmm0); | |
| 1053 } | |
| 1054 | |
| 1055 void TemplateTable::dstore(int n) { | |
| 1056 transition(dtos, vtos); | |
| 1057 __ movdbl(daddress(n), xmm0); | |
| 1058 } | |
| 1059 | |
| 1060 void TemplateTable::astore(int n) { | |
| 1061 transition(vtos, vtos); | |
| 1506 | 1062 __ pop_ptr(rax); |
| 304 | 1063 __ movptr(aaddress(n), rax); |
| 0 | 1064 } |
| 1065 | |
| 1066 void TemplateTable::pop() { | |
| 1067 transition(vtos, vtos); | |
| 1506 | 1068 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1069 } |
| 1070 | |
| 1071 void TemplateTable::pop2() { | |
| 1072 transition(vtos, vtos); | |
| 1506 | 1073 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1074 } |
| 1075 | |
| 1076 void TemplateTable::dup() { | |
| 1077 transition(vtos, vtos); | |
| 1506 | 1078 __ load_ptr(0, rax); |
| 1079 __ push_ptr(rax); | |
| 0 | 1080 // stack: ..., a, a |
| 1081 } | |
| 1082 | |
| 1083 void TemplateTable::dup_x1() { | |
| 1084 transition(vtos, vtos); | |
| 1085 // stack: ..., a, b | |
| 1506 | 1086 __ load_ptr( 0, rax); // load b |
| 1087 __ load_ptr( 1, rcx); // load a | |
| 1088 __ store_ptr(1, rax); // store b | |
| 1089 __ store_ptr(0, rcx); // store a | |
| 1090 __ push_ptr(rax); // push b | |
| 0 | 1091 // stack: ..., b, a, b |
| 1092 } | |
| 1093 | |
| 1094 void TemplateTable::dup_x2() { | |
| 1095 transition(vtos, vtos); | |
| 1096 // stack: ..., a, b, c | |
| 1506 | 1097 __ load_ptr( 0, rax); // load c |
| 1098 __ load_ptr( 2, rcx); // load a | |
| 1099 __ store_ptr(2, rax); // store c in a | |
| 1100 __ push_ptr(rax); // push c | |
| 0 | 1101 // stack: ..., c, b, c, c |
| 1506 | 1102 __ load_ptr( 2, rax); // load b |
| 1103 __ store_ptr(2, rcx); // store a in b | |
| 0 | 1104 // stack: ..., c, a, c, c |
| 1506 | 1105 __ store_ptr(1, rax); // store b in c |
| 0 | 1106 // stack: ..., c, a, b, c |
| 1107 } | |
| 1108 | |
| 1109 void TemplateTable::dup2() { | |
| 1110 transition(vtos, vtos); | |
| 1111 // stack: ..., a, b | |
| 1506 | 1112 __ load_ptr(1, rax); // load a |
| 1113 __ push_ptr(rax); // push a | |
| 1114 __ load_ptr(1, rax); // load b | |
| 1115 __ push_ptr(rax); // push b | |
| 0 | 1116 // stack: ..., a, b, a, b |
| 1117 } | |
| 1118 | |
| 1119 void TemplateTable::dup2_x1() { | |
| 1120 transition(vtos, vtos); | |
| 1121 // stack: ..., a, b, c | |
| 1506 | 1122 __ load_ptr( 0, rcx); // load c |
| 1123 __ load_ptr( 1, rax); // load b | |
| 1124 __ push_ptr(rax); // push b | |
| 1125 __ push_ptr(rcx); // push c | |
| 0 | 1126 // stack: ..., a, b, c, b, c |
| 1506 | 1127 __ store_ptr(3, rcx); // store c in b |
| 0 | 1128 // stack: ..., a, c, c, b, c |
| 1506 | 1129 __ load_ptr( 4, rcx); // load a |
| 1130 __ store_ptr(2, rcx); // store a in 2nd c | |
| 0 | 1131 // stack: ..., a, c, a, b, c |
| 1506 | 1132 __ store_ptr(4, rax); // store b in a |
| 0 | 1133 // stack: ..., b, c, a, b, c |
| 1134 } | |
| 1135 | |
| 1136 void TemplateTable::dup2_x2() { | |
| 1137 transition(vtos, vtos); | |
| 1138 // stack: ..., a, b, c, d | |
| 1506 | 1139 __ load_ptr( 0, rcx); // load d |
| 1140 __ load_ptr( 1, rax); // load c | |
| 1141 __ push_ptr(rax); // push c | |
| 1142 __ push_ptr(rcx); // push d | |
| 0 | 1143 // stack: ..., a, b, c, d, c, d |
| 1506 | 1144 __ load_ptr( 4, rax); // load b |
| 1145 __ store_ptr(2, rax); // store b in d | |
| 1146 __ store_ptr(4, rcx); // store d in b | |
| 0 | 1147 // stack: ..., a, d, c, b, c, d |
| 1506 | 1148 __ load_ptr( 5, rcx); // load a |
| 1149 __ load_ptr( 3, rax); // load c | |
| 1150 __ store_ptr(3, rcx); // store a in c | |
| 1151 __ store_ptr(5, rax); // store c in a | |
| 0 | 1152 // stack: ..., c, d, a, b, c, d |
| 1153 } | |
| 1154 | |
| 1155 void TemplateTable::swap() { | |
| 1156 transition(vtos, vtos); | |
| 1157 // stack: ..., a, b | |
| 1506 | 1158 __ load_ptr( 1, rcx); // load a |
| 1159 __ load_ptr( 0, rax); // load b | |
| 1160 __ store_ptr(0, rcx); // store a in b | |
| 1161 __ store_ptr(1, rax); // store b in a | |
| 0 | 1162 // stack: ..., b, a |
| 1163 } | |
| 1164 | |
| 1165 void TemplateTable::iop2(Operation op) { | |
| 1166 transition(itos, itos); | |
| 1167 switch (op) { | |
| 1168 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
| 1169 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
| 1170 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
| 1171 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
| 1172 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
| 1173 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
| 1174 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
| 1175 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
| 1176 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
| 1177 default : ShouldNotReachHere(); | |
| 1178 } | |
| 1179 } | |
| 1180 | |
| 1181 void TemplateTable::lop2(Operation op) { | |
| 1182 transition(ltos, ltos); | |
| 1183 switch (op) { | |
| 1506 | 1184 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
| 1185 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
| 1186 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
| 1187 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
| 1188 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
| 1189 default : ShouldNotReachHere(); | |
| 0 | 1190 } |
| 1191 } | |
| 1192 | |
| 1193 void TemplateTable::idiv() { | |
| 1194 transition(itos, itos); | |
| 1195 __ movl(rcx, rax); | |
| 1196 __ pop_i(rax); | |
| 1197 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1198 // they are not equal, one could do a normal division (no correction | |
| 1199 // needed), which may speed up this implementation for the common case. | |
| 1200 // (see also JVM spec., p.243 & p.271) | |
| 1201 __ corrected_idivl(rcx); | |
| 1202 } | |
| 1203 | |
| 1204 void TemplateTable::irem() { | |
| 1205 transition(itos, itos); | |
| 1206 __ movl(rcx, rax); | |
| 1207 __ pop_i(rax); | |
| 1208 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1209 // they are not equal, one could do a normal division (no correction | |
| 1210 // needed), which may speed up this implementation for the common case. | |
| 1211 // (see also JVM spec., p.243 & p.271) | |
| 1212 __ corrected_idivl(rcx); | |
| 1213 __ movl(rax, rdx); | |
| 1214 } | |
| 1215 | |
| 1216 void TemplateTable::lmul() { | |
| 1217 transition(ltos, ltos); | |
| 1218 __ pop_l(rdx); | |
| 1219 __ imulq(rax, rdx); | |
| 1220 } | |
| 1221 | |
| 1222 void TemplateTable::ldiv() { | |
| 1223 transition(ltos, ltos); | |
| 304 | 1224 __ mov(rcx, rax); |
| 0 | 1225 __ pop_l(rax); |
| 1226 // generate explicit div0 check | |
| 1227 __ testq(rcx, rcx); | |
| 1228 __ jump_cc(Assembler::zero, | |
| 1229 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1230 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1231 // they are not equal, one could do a normal division (no correction | |
| 1232 // needed), which may speed up this implementation for the common case. | |
| 1233 // (see also JVM spec., p.243 & p.271) | |
| 1234 __ corrected_idivq(rcx); // kills rbx | |
| 1235 } | |
| 1236 | |
| 1237 void TemplateTable::lrem() { | |
| 1238 transition(ltos, ltos); | |
| 304 | 1239 __ mov(rcx, rax); |
| 0 | 1240 __ pop_l(rax); |
| 1241 __ testq(rcx, rcx); | |
| 1242 __ jump_cc(Assembler::zero, | |
| 1243 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1244 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1245 // they are not equal, one could do a normal division (no correction | |
| 1246 // needed), which may speed up this implementation for the common case. | |
| 1247 // (see also JVM spec., p.243 & p.271) | |
| 1248 __ corrected_idivq(rcx); // kills rbx | |
| 304 | 1249 __ mov(rax, rdx); |
| 0 | 1250 } |
| 1251 | |
| 1252 void TemplateTable::lshl() { | |
| 1253 transition(itos, ltos); | |
| 1254 __ movl(rcx, rax); // get shift count | |
| 1255 __ pop_l(rax); // get shift value | |
| 1256 __ shlq(rax); | |
| 1257 } | |
| 1258 | |
| 1259 void TemplateTable::lshr() { | |
| 1260 transition(itos, ltos); | |
| 1261 __ movl(rcx, rax); // get shift count | |
| 1262 __ pop_l(rax); // get shift value | |
| 1263 __ sarq(rax); | |
| 1264 } | |
| 1265 | |
| 1266 void TemplateTable::lushr() { | |
| 1267 transition(itos, ltos); | |
| 1268 __ movl(rcx, rax); // get shift count | |
| 1269 __ pop_l(rax); // get shift value | |
| 1270 __ shrq(rax); | |
| 1271 } | |
| 1272 | |
| 1273 void TemplateTable::fop2(Operation op) { | |
| 1274 transition(ftos, ftos); | |
| 1275 switch (op) { | |
| 1276 case add: | |
| 1277 __ addss(xmm0, at_rsp()); | |
| 1506 | 1278 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1279 break; |
| 1280 case sub: | |
| 1281 __ movflt(xmm1, xmm0); | |
| 1282 __ pop_f(xmm0); | |
| 1283 __ subss(xmm0, xmm1); | |
| 1284 break; | |
| 1285 case mul: | |
| 1286 __ mulss(xmm0, at_rsp()); | |
| 1506 | 1287 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1288 break; |
| 1289 case div: | |
| 1290 __ movflt(xmm1, xmm0); | |
| 1291 __ pop_f(xmm0); | |
| 1292 __ divss(xmm0, xmm1); | |
| 1293 break; | |
| 1294 case rem: | |
| 1295 __ movflt(xmm1, xmm0); | |
| 1296 __ pop_f(xmm0); | |
| 1297 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
| 1298 break; | |
| 1299 default: | |
| 1300 ShouldNotReachHere(); | |
| 1301 break; | |
| 1302 } | |
| 1303 } | |
| 1304 | |
| 1305 void TemplateTable::dop2(Operation op) { | |
| 1306 transition(dtos, dtos); | |
| 1307 switch (op) { | |
| 1308 case add: | |
| 1309 __ addsd(xmm0, at_rsp()); | |
| 1506 | 1310 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1311 break; |
| 1312 case sub: | |
| 1313 __ movdbl(xmm1, xmm0); | |
| 1314 __ pop_d(xmm0); | |
| 1315 __ subsd(xmm0, xmm1); | |
| 1316 break; | |
| 1317 case mul: | |
| 1318 __ mulsd(xmm0, at_rsp()); | |
| 1506 | 1319 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1320 break; |
| 1321 case div: | |
| 1322 __ movdbl(xmm1, xmm0); | |
| 1323 __ pop_d(xmm0); | |
| 1324 __ divsd(xmm0, xmm1); | |
| 1325 break; | |
| 1326 case rem: | |
| 1327 __ movdbl(xmm1, xmm0); | |
| 1328 __ pop_d(xmm0); | |
| 1329 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
| 1330 break; | |
| 1331 default: | |
| 1332 ShouldNotReachHere(); | |
| 1333 break; | |
| 1334 } | |
| 1335 } | |
| 1336 | |
| 1337 void TemplateTable::ineg() { | |
| 1338 transition(itos, itos); | |
| 1339 __ negl(rax); | |
| 1340 } | |
| 1341 | |
| 1342 void TemplateTable::lneg() { | |
| 1343 transition(ltos, ltos); | |
| 1344 __ negq(rax); | |
| 1345 } | |
| 1346 | |
| 1347 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
| 1348 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
| 1349 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
| 1350 // of 128-bits operands for SSE instructions. | |
| 1351 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
| 1352 // Store the value to a 128-bits operand. | |
| 1353 operand[0] = lo; | |
| 1354 operand[1] = hi; | |
| 1355 return operand; | |
| 1356 } | |
| 1357 | |
| 1358 // Buffer for 128-bits masks used by SSE instructions. | |
| 1359 static jlong float_signflip_pool[2*2]; | |
| 1360 static jlong double_signflip_pool[2*2]; | |
| 1361 | |
| 1362 void TemplateTable::fneg() { | |
| 1363 transition(ftos, ftos); | |
| 1364 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
| 1365 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
| 1366 } | |
| 1367 | |
| 1368 void TemplateTable::dneg() { | |
| 1369 transition(dtos, dtos); | |
| 1370 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
| 1371 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
| 1372 } | |
| 1373 | |
| 1374 void TemplateTable::iinc() { | |
| 1375 transition(vtos, vtos); | |
| 1376 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
| 1377 locals_index(rbx); | |
| 1378 __ addl(iaddress(rbx), rdx); | |
| 1379 } | |
| 1380 | |
| 1381 void TemplateTable::wide_iinc() { | |
| 1382 transition(vtos, vtos); | |
| 1383 __ movl(rdx, at_bcp(4)); // get constant | |
| 1384 locals_index_wide(rbx); | |
| 1385 __ bswapl(rdx); // swap bytes & sign-extend constant | |
| 1386 __ sarl(rdx, 16); | |
| 1387 __ addl(iaddress(rbx), rdx); | |
| 1388 // Note: should probably use only one movl to get both | |
| 1389 // the index and the constant -> fix this | |
| 1390 } | |
| 1391 | |
| 1392 void TemplateTable::convert() { | |
| 1393 // Checking | |
| 1394 #ifdef ASSERT | |
| 1395 { | |
| 1396 TosState tos_in = ilgl; | |
| 1397 TosState tos_out = ilgl; | |
| 1398 switch (bytecode()) { | |
| 1399 case Bytecodes::_i2l: // fall through | |
| 1400 case Bytecodes::_i2f: // fall through | |
| 1401 case Bytecodes::_i2d: // fall through | |
| 1402 case Bytecodes::_i2b: // fall through | |
| 1403 case Bytecodes::_i2c: // fall through | |
| 1404 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1405 case Bytecodes::_l2i: // fall through | |
| 1406 case Bytecodes::_l2f: // fall through | |
| 1407 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1408 case Bytecodes::_f2i: // fall through | |
| 1409 case Bytecodes::_f2l: // fall through | |
| 1410 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1411 case Bytecodes::_d2i: // fall through | |
| 1412 case Bytecodes::_d2l: // fall through | |
| 1413 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1414 default : ShouldNotReachHere(); | |
| 1415 } | |
| 1416 switch (bytecode()) { | |
| 1417 case Bytecodes::_l2i: // fall through | |
| 1418 case Bytecodes::_f2i: // fall through | |
| 1419 case Bytecodes::_d2i: // fall through | |
| 1420 case Bytecodes::_i2b: // fall through | |
| 1421 case Bytecodes::_i2c: // fall through | |
| 1422 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1423 case Bytecodes::_i2l: // fall through | |
| 1424 case Bytecodes::_f2l: // fall through | |
| 1425 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1426 case Bytecodes::_i2f: // fall through | |
| 1427 case Bytecodes::_l2f: // fall through | |
| 1428 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1429 case Bytecodes::_i2d: // fall through | |
| 1430 case Bytecodes::_l2d: // fall through | |
| 1431 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1432 default : ShouldNotReachHere(); | |
| 1433 } | |
| 1434 transition(tos_in, tos_out); | |
| 1435 } | |
| 1436 #endif // ASSERT | |
| 1437 | |
| 1438 static const int64_t is_nan = 0x8000000000000000L; | |
| 1439 | |
| 1440 // Conversion | |
| 1441 switch (bytecode()) { | |
| 1442 case Bytecodes::_i2l: | |
| 1443 __ movslq(rax, rax); | |
| 1444 break; | |
| 1445 case Bytecodes::_i2f: | |
| 1446 __ cvtsi2ssl(xmm0, rax); | |
| 1447 break; | |
| 1448 case Bytecodes::_i2d: | |
| 1449 __ cvtsi2sdl(xmm0, rax); | |
| 1450 break; | |
| 1451 case Bytecodes::_i2b: | |
| 1452 __ movsbl(rax, rax); | |
| 1453 break; | |
| 1454 case Bytecodes::_i2c: | |
| 1455 __ movzwl(rax, rax); | |
| 1456 break; | |
| 1457 case Bytecodes::_i2s: | |
| 1458 __ movswl(rax, rax); | |
| 1459 break; | |
| 1460 case Bytecodes::_l2i: | |
| 1461 __ movl(rax, rax); | |
| 1462 break; | |
| 1463 case Bytecodes::_l2f: | |
| 1464 __ cvtsi2ssq(xmm0, rax); | |
| 1465 break; | |
| 1466 case Bytecodes::_l2d: | |
| 1467 __ cvtsi2sdq(xmm0, rax); | |
| 1468 break; | |
| 1469 case Bytecodes::_f2i: | |
| 1470 { | |
| 1471 Label L; | |
| 1472 __ cvttss2sil(rax, xmm0); | |
| 1473 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1474 __ jcc(Assembler::notEqual, L); | |
| 1475 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
| 1476 __ bind(L); | |
| 1477 } | |
| 1478 break; | |
| 1479 case Bytecodes::_f2l: | |
| 1480 { | |
| 1481 Label L; | |
| 1482 __ cvttss2siq(rax, xmm0); | |
| 1483 // NaN or overflow/underflow? | |
| 1484 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1485 __ jcc(Assembler::notEqual, L); | |
| 1486 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
| 1487 __ bind(L); | |
| 1488 } | |
| 1489 break; | |
| 1490 case Bytecodes::_f2d: | |
| 1491 __ cvtss2sd(xmm0, xmm0); | |
| 1492 break; | |
| 1493 case Bytecodes::_d2i: | |
| 1494 { | |
| 1495 Label L; | |
| 1496 __ cvttsd2sil(rax, xmm0); | |
| 1497 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1498 __ jcc(Assembler::notEqual, L); | |
| 1499 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
| 1500 __ bind(L); | |
| 1501 } | |
| 1502 break; | |
| 1503 case Bytecodes::_d2l: | |
| 1504 { | |
| 1505 Label L; | |
| 1506 __ cvttsd2siq(rax, xmm0); | |
| 1507 // NaN or overflow/underflow? | |
| 1508 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1509 __ jcc(Assembler::notEqual, L); | |
| 1510 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
| 1511 __ bind(L); | |
| 1512 } | |
| 1513 break; | |
| 1514 case Bytecodes::_d2f: | |
| 1515 __ cvtsd2ss(xmm0, xmm0); | |
| 1516 break; | |
| 1517 default: | |
| 1518 ShouldNotReachHere(); | |
| 1519 } | |
| 1520 } | |
| 1521 | |
| 1522 void TemplateTable::lcmp() { | |
| 1523 transition(ltos, itos); | |
| 1524 Label done; | |
| 1525 __ pop_l(rdx); | |
| 1526 __ cmpq(rdx, rax); | |
| 1527 __ movl(rax, -1); | |
| 1528 __ jccb(Assembler::less, done); | |
| 1529 __ setb(Assembler::notEqual, rax); | |
| 1530 __ movzbl(rax, rax); | |
| 1531 __ bind(done); | |
| 1532 } | |
| 1533 | |
| 1534 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1535 Label done; | |
| 1536 if (is_float) { | |
| 1537 // XXX get rid of pop here, use ... reg, mem32 | |
| 1538 __ pop_f(xmm1); | |
| 1539 __ ucomiss(xmm1, xmm0); | |
| 1540 } else { | |
| 1541 // XXX get rid of pop here, use ... reg, mem64 | |
| 1542 __ pop_d(xmm1); | |
| 1543 __ ucomisd(xmm1, xmm0); | |
| 1544 } | |
| 1545 if (unordered_result < 0) { | |
| 1546 __ movl(rax, -1); | |
| 1547 __ jccb(Assembler::parity, done); | |
| 1548 __ jccb(Assembler::below, done); | |
| 1549 __ setb(Assembler::notEqual, rdx); | |
| 1550 __ movzbl(rax, rdx); | |
| 1551 } else { | |
| 1552 __ movl(rax, 1); | |
| 1553 __ jccb(Assembler::parity, done); | |
| 1554 __ jccb(Assembler::above, done); | |
| 1555 __ movl(rax, 0); | |
| 1556 __ jccb(Assembler::equal, done); | |
| 1557 __ decrementl(rax); | |
| 1558 } | |
| 1559 __ bind(done); | |
| 1560 } | |
| 1561 | |
| 1562 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1563 __ get_method(rcx); // rcx holds method | |
| 1564 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
| 1565 // holds bumped taken count | |
| 1566 | |
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1567 const ByteSize be_offset = MethodCounters::backedge_counter_offset() + |
| 0 | 1568 InvocationCounter::counter_offset(); |
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1569 const ByteSize inv_offset = MethodCounters::invocation_counter_offset() + |
| 0 | 1570 InvocationCounter::counter_offset(); |
| 1571 | |
| 1572 // Load up edx with the branch displacement | |
| 1573 __ movl(rdx, at_bcp(1)); | |
| 1574 __ bswapl(rdx); | |
| 1575 | |
| 1576 if (!is_wide) { | |
| 1577 __ sarl(rdx, 16); | |
| 1578 } | |
| 304 | 1579 __ movl2ptr(rdx, rdx); |
| 0 | 1580 |
| 1581 // Handle all the JSR stuff here, then exit. | |
| 1582 // It's much shorter and cleaner than intermingling with the non-JSR | |
| 605 | 1583 // normal-branch stuff occurring below. |
| 0 | 1584 if (is_jsr) { |
| 1585 // Pre-load the next target bytecode into rbx | |
| 1586 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
| 1587 | |
| 1588 // compute return address as bci in rax | |
| 304 | 1589 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1590 in_bytes(ConstMethod::codes_offset()))); |
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1591 __ subptr(rax, Address(rcx, Method::const_offset())); |
| 0 | 1592 // Adjust the bcp in r13 by the displacement in rdx |
| 304 | 1593 __ addptr(r13, rdx); |
| 0 | 1594 // jsr returns atos that is not an oop |
| 1595 __ push_i(rax); | |
| 1596 __ dispatch_only(vtos); | |
| 1597 return; | |
| 1598 } | |
| 1599 | |
| 1600 // Normal (non-jsr) branch handling | |
| 1601 | |
| 1602 // Adjust the bcp in r13 by the displacement in rdx | |
| 304 | 1603 __ addptr(r13, rdx); |
| 0 | 1604 |
| 1605 assert(UseLoopCounter || !UseOnStackReplacement, | |
| 1606 "on-stack-replacement requires loop counters"); | |
| 1607 Label backedge_counter_overflow; | |
| 1608 Label profile_method; | |
| 1609 Label dispatch; | |
| 1610 if (UseLoopCounter) { | |
| 1611 // increment backedge counter for backward branches | |
| 1612 // rax: MDO | |
| 1613 // ebx: MDO bumped taken-count | |
| 1614 // rcx: method | |
| 1615 // rdx: target offset | |
| 1616 // r13: target bcp | |
| 1617 // r14: locals pointer | |
| 1618 __ testl(rdx, rdx); // check if forward or backward branch | |
| 1619 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
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1620 |
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1621 // check if MethodCounters exists |
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1622 Label has_counters; |
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1623 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1624 __ testptr(rax, rax); |
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1625 __ jcc(Assembler::notZero, has_counters); |
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1626 __ push(rdx); |
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1627 __ push(rcx); |
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1628 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::build_method_counters), |
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1629 rcx); |
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1630 __ pop(rcx); |
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1631 __ pop(rdx); |
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1632 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1633 __ jcc(Assembler::zero, dispatch); |
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1634 __ bind(has_counters); |
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1635 |
| 1783 | 1636 if (TieredCompilation) { |
| 1637 Label no_mdo; | |
| 1638 int increment = InvocationCounter::count_increment; | |
| 1639 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1640 if (ProfileInterpreter) { | |
| 1641 // Are we profiling? | |
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1642 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
| 1783 | 1643 __ testptr(rbx, rbx); |
| 1644 __ jccb(Assembler::zero, no_mdo); | |
| 1645 // Increment the MDO backedge counter | |
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1646 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1647 in_bytes(InvocationCounter::counter_offset())); |
| 1648 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
| 1649 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 1650 __ jmp(dispatch); | |
| 0 | 1651 } |
| 1783 | 1652 __ bind(no_mdo); |
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1653 // Increment backedge counter in MethodCounters* |
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1654 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1655 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
| 1656 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 0 | 1657 } else { |
| 1783 | 1658 // increment counter |
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1659 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1660 __ movl(rax, Address(rcx, be_offset)); // load backedge counter |
| 1661 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
| 1662 __ movl(Address(rcx, be_offset), rax); // store counter | |
| 1663 | |
| 1664 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
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1665 |
| 1783 | 1666 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits |
| 1667 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
| 1668 | |
| 1669 if (ProfileInterpreter) { | |
| 1670 // Test to see if we should create a method data oop | |
| 0 | 1671 __ cmp32(rax, |
| 1783 | 1672 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
| 1673 __ jcc(Assembler::less, dispatch); | |
| 1674 | |
| 1675 // if no method data exists, go to profile method | |
| 1676 __ test_method_data_pointer(rax, profile_method); | |
| 1677 | |
| 1678 if (UseOnStackReplacement) { | |
| 1679 // check for overflow against ebx which is the MDO taken count | |
| 1680 __ cmp32(rbx, | |
| 1681 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1682 __ jcc(Assembler::below, dispatch); | |
| 1683 | |
| 1684 // When ProfileInterpreter is on, the backedge_count comes | |
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1685 // from the MethodData*, which value does not get reset on |
| 1783 | 1686 // the call to frequency_counter_overflow(). To avoid |
| 1687 // excessive calls to the overflow routine while the method is | |
| 1688 // being compiled, add a second test to make sure the overflow | |
| 1689 // function is called only once every overflow_frequency. | |
| 1690 const int overflow_frequency = 1024; | |
| 1691 __ andl(rbx, overflow_frequency - 1); | |
| 1692 __ jcc(Assembler::zero, backedge_counter_overflow); | |
| 1693 | |
| 1694 } | |
| 1695 } else { | |
| 1696 if (UseOnStackReplacement) { | |
| 1697 // check for overflow against eax, which is the sum of the | |
| 1698 // counters | |
| 1699 __ cmp32(rax, | |
| 1700 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1701 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
| 1702 | |
| 1703 } | |
| 0 | 1704 } |
| 1705 } | |
| 1706 __ bind(dispatch); | |
| 1707 } | |
| 1708 | |
| 1709 // Pre-load the next target bytecode into rbx | |
| 1710 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
| 1711 | |
| 1712 // continue with the bytecode @ target | |
| 1713 // eax: return bci for jsr's, unused otherwise | |
| 1714 // ebx: target bytecode | |
| 1715 // r13: target bcp | |
| 1716 __ dispatch_only(vtos); | |
| 1717 | |
| 1718 if (UseLoopCounter) { | |
| 1719 if (ProfileInterpreter) { | |
| 1720 // Out-of-line code to allocate method data oop. | |
| 1721 __ bind(profile_method); | |
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1722 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
| 0 | 1723 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1724 __ set_method_data_pointer_for_bcp(); |
| 0 | 1725 __ jmp(dispatch); |
| 1726 } | |
| 1727 | |
| 1728 if (UseOnStackReplacement) { | |
| 1729 // invocation counter overflow | |
| 1730 __ bind(backedge_counter_overflow); | |
| 304 | 1731 __ negptr(rdx); |
| 1732 __ addptr(rdx, r13); // branch bcp | |
| 0 | 1733 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
| 1734 __ call_VM(noreg, | |
| 1735 CAST_FROM_FN_PTR(address, | |
| 1736 InterpreterRuntime::frequency_counter_overflow), | |
| 1737 rdx); | |
| 1738 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
| 1739 | |
| 1740 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
| 1741 // ebx: target bytecode | |
| 1742 // rdx: scratch | |
| 1743 // r14: locals pointer | |
| 1744 // r13: bcp | |
| 304 | 1745 __ testptr(rax, rax); // test result |
| 0 | 1746 __ jcc(Assembler::zero, dispatch); // no osr if null |
| 1747 // nmethod may have been invalidated (VM may block upon call_VM return) | |
| 1748 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
| 1749 __ cmpl(rcx, InvalidOSREntryBci); | |
| 1750 __ jcc(Assembler::equal, dispatch); | |
| 1751 | |
| 1752 // We have the address of an on stack replacement routine in eax | |
| 1753 // We need to prepare to execute the OSR method. First we must | |
| 1754 // migrate the locals and monitors off of the stack. | |
| 1755 | |
| 304 | 1756 __ mov(r13, rax); // save the nmethod |
| 0 | 1757 |
| 1758 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
| 1759 | |
| 1760 // eax is OSR buffer, move it to expected parameter location | |
| 304 | 1761 __ mov(j_rarg0, rax); |
| 0 | 1762 |
| 1763 // We use j_rarg definitions here so that registers don't conflict as parameter | |
| 1764 // registers change across platforms as we are in the midst of a calling | |
| 1765 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
| 1766 | |
| 1767 const Register retaddr = j_rarg2; | |
| 1768 const Register sender_sp = j_rarg1; | |
| 1769 | |
| 1770 // pop the interpreter frame | |
| 304 | 1771 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1772 __ leave(); // remove frame anchor |
| 304 | 1773 __ pop(retaddr); // get return address |
| 1774 __ mov(rsp, sender_sp); // set sp to sender sp | |
| 0 | 1775 // Ensure compiled code always sees stack at proper alignment |
| 304 | 1776 __ andptr(rsp, -(StackAlignmentInBytes)); |
| 0 | 1777 |
| 1778 // unlike x86 we need no specialized return from compiled code | |
| 1779 // to the interpreter or the call stub. | |
| 1780 | |
| 1781 // push the return address | |
| 304 | 1782 __ push(retaddr); |
| 0 | 1783 |
| 1784 // and begin the OSR nmethod | |
| 1785 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
| 1786 } | |
| 1787 } | |
| 1788 } | |
| 1789 | |
| 1790 | |
| 1791 void TemplateTable::if_0cmp(Condition cc) { | |
| 1792 transition(itos, vtos); | |
| 1793 // assume branch is more often taken than not (loops use backward branches) | |
| 1794 Label not_taken; | |
| 1795 __ testl(rax, rax); | |
| 1796 __ jcc(j_not(cc), not_taken); | |
| 1797 branch(false, false); | |
| 1798 __ bind(not_taken); | |
| 1799 __ profile_not_taken_branch(rax); | |
| 1800 } | |
| 1801 | |
| 1802 void TemplateTable::if_icmp(Condition cc) { | |
| 1803 transition(itos, vtos); | |
| 1804 // assume branch is more often taken than not (loops use backward branches) | |
| 1805 Label not_taken; | |
| 1806 __ pop_i(rdx); | |
| 1807 __ cmpl(rdx, rax); | |
| 1808 __ jcc(j_not(cc), not_taken); | |
| 1809 branch(false, false); | |
| 1810 __ bind(not_taken); | |
| 1811 __ profile_not_taken_branch(rax); | |
| 1812 } | |
| 1813 | |
| 1814 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1815 transition(atos, vtos); | |
| 1816 // assume branch is more often taken than not (loops use backward branches) | |
| 1817 Label not_taken; | |
| 304 | 1818 __ testptr(rax, rax); |
| 0 | 1819 __ jcc(j_not(cc), not_taken); |
| 1820 branch(false, false); | |
| 1821 __ bind(not_taken); | |
| 1822 __ profile_not_taken_branch(rax); | |
| 1823 } | |
| 1824 | |
| 1825 void TemplateTable::if_acmp(Condition cc) { | |
| 1826 transition(atos, vtos); | |
| 1827 // assume branch is more often taken than not (loops use backward branches) | |
| 1828 Label not_taken; | |
| 1829 __ pop_ptr(rdx); | |
| 304 | 1830 __ cmpptr(rdx, rax); |
| 0 | 1831 __ jcc(j_not(cc), not_taken); |
| 1832 branch(false, false); | |
| 1833 __ bind(not_taken); | |
| 1834 __ profile_not_taken_branch(rax); | |
| 1835 } | |
| 1836 | |
| 1837 void TemplateTable::ret() { | |
| 1838 transition(vtos, vtos); | |
| 1839 locals_index(rbx); | |
| 304 | 1840 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1841 __ profile_ret(rbx, rcx); |
| 1842 __ get_method(rax); | |
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1843 __ movptr(r13, Address(rax, Method::const_offset())); |
| 304 | 1844 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1845 ConstMethod::codes_offset())); |
| 0 | 1846 __ dispatch_next(vtos); |
| 1847 } | |
| 1848 | |
| 1849 void TemplateTable::wide_ret() { | |
| 1850 transition(vtos, vtos); | |
| 1851 locals_index_wide(rbx); | |
| 304 | 1852 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1853 __ profile_ret(rbx, rcx); |
| 1854 __ get_method(rax); | |
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1855 __ movptr(r13, Address(rax, Method::const_offset())); |
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1856 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
| 0 | 1857 __ dispatch_next(vtos); |
| 1858 } | |
| 1859 | |
| 1860 void TemplateTable::tableswitch() { | |
| 1861 Label default_case, continue_execution; | |
| 1862 transition(itos, vtos); | |
| 1863 // align r13 | |
| 304 | 1864 __ lea(rbx, at_bcp(BytesPerInt)); |
| 1865 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1866 // load lo & hi |
| 1867 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1868 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
| 1869 __ bswapl(rcx); | |
| 1870 __ bswapl(rdx); | |
| 1871 // check against lo & hi | |
| 1872 __ cmpl(rax, rcx); | |
| 1873 __ jcc(Assembler::less, default_case); | |
| 1874 __ cmpl(rax, rdx); | |
| 1875 __ jcc(Assembler::greater, default_case); | |
| 1876 // lookup dispatch offset | |
| 1877 __ subl(rax, rcx); | |
| 1878 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
| 1879 __ profile_switch_case(rax, rbx, rcx); | |
| 1880 // continue execution | |
| 1881 __ bind(continue_execution); | |
| 1882 __ bswapl(rdx); | |
| 304 | 1883 __ movl2ptr(rdx, rdx); |
| 0 | 1884 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1885 __ addptr(r13, rdx); |
| 0 | 1886 __ dispatch_only(vtos); |
| 1887 // handle default | |
| 1888 __ bind(default_case); | |
| 1889 __ profile_switch_default(rax); | |
| 1890 __ movl(rdx, Address(rbx, 0)); | |
| 1891 __ jmp(continue_execution); | |
| 1892 } | |
| 1893 | |
| 1894 void TemplateTable::lookupswitch() { | |
| 1895 transition(itos, itos); | |
| 1896 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1897 } | |
| 1898 | |
| 1899 void TemplateTable::fast_linearswitch() { | |
| 1900 transition(itos, vtos); | |
| 1901 Label loop_entry, loop, found, continue_execution; | |
| 1902 // bswap rax so we can avoid bswapping the table entries | |
| 1903 __ bswapl(rax); | |
| 1904 // align r13 | |
| 304 | 1905 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
| 1906 // this instruction (change offsets | |
| 1907 // below) | |
| 1908 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1909 // set counter |
| 1910 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1911 __ bswapl(rcx); | |
| 1912 __ jmpb(loop_entry); | |
| 1913 // table search | |
| 1914 __ bind(loop); | |
| 1915 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
| 1916 __ jcc(Assembler::equal, found); | |
| 1917 __ bind(loop_entry); | |
| 1918 __ decrementl(rcx); | |
| 1919 __ jcc(Assembler::greaterEqual, loop); | |
| 1920 // default case | |
| 1921 __ profile_switch_default(rax); | |
| 1922 __ movl(rdx, Address(rbx, 0)); | |
| 1923 __ jmp(continue_execution); | |
| 1924 // entry found -> get offset | |
| 1925 __ bind(found); | |
| 1926 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
| 1927 __ profile_switch_case(rcx, rax, rbx); | |
| 1928 // continue execution | |
| 1929 __ bind(continue_execution); | |
| 1930 __ bswapl(rdx); | |
| 304 | 1931 __ movl2ptr(rdx, rdx); |
| 0 | 1932 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1933 __ addptr(r13, rdx); |
| 0 | 1934 __ dispatch_only(vtos); |
| 1935 } | |
| 1936 | |
| 1937 void TemplateTable::fast_binaryswitch() { | |
| 1938 transition(itos, vtos); | |
| 1939 // Implementation using the following core algorithm: | |
| 1940 // | |
| 1941 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1942 // // Binary search according to "Methodik des Programmierens" by | |
| 1943 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1944 // int i = 0; | |
| 1945 // int j = n; | |
| 1946 // while (i+1 < j) { | |
| 1947 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1948 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1949 // // where a stands for the array and assuming that the (inexisting) | |
| 1950 // // element a[n] is infinitely big. | |
| 1951 // int h = (i + j) >> 1; | |
| 1952 // // i < h < j | |
| 1953 // if (key < array[h].fast_match()) { | |
| 1954 // j = h; | |
| 1955 // } else { | |
| 1956 // i = h; | |
| 1957 // } | |
| 1958 // } | |
| 1959 // // R: a[i] <= key < a[i+1] or Q | |
| 1960 // // (i.e., if key is within array, i is the correct index) | |
| 1961 // return i; | |
| 1962 // } | |
| 1963 | |
| 1964 // Register allocation | |
| 1965 const Register key = rax; // already set (tosca) | |
| 1966 const Register array = rbx; | |
| 1967 const Register i = rcx; | |
| 1968 const Register j = rdx; | |
| 1969 const Register h = rdi; | |
| 1970 const Register temp = rsi; | |
| 1971 | |
| 1972 // Find array start | |
| 304 | 1973 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
| 1974 // get rid of this | |
| 1975 // instruction (change | |
| 1976 // offsets below) | |
| 1977 __ andptr(array, -BytesPerInt); | |
| 0 | 1978 |
| 1979 // Initialize i & j | |
| 1980 __ xorl(i, i); // i = 0; | |
| 1981 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
| 1982 | |
| 1983 // Convert j into native byteordering | |
| 1984 __ bswapl(j); | |
| 1985 | |
| 1986 // And start | |
| 1987 Label entry; | |
| 1988 __ jmp(entry); | |
| 1989 | |
| 1990 // binary search loop | |
| 1991 { | |
| 1992 Label loop; | |
| 1993 __ bind(loop); | |
| 1994 // int h = (i + j) >> 1; | |
| 1995 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
| 1996 __ sarl(h, 1); // h = (i + j) >> 1; | |
| 1997 // if (key < array[h].fast_match()) { | |
| 1998 // j = h; | |
| 1999 // } else { | |
| 2000 // i = h; | |
| 2001 // } | |
| 2002 // Convert array[h].match to native byte-ordering before compare | |
| 2003 __ movl(temp, Address(array, h, Address::times_8)); | |
| 2004 __ bswapl(temp); | |
| 2005 __ cmpl(key, temp); | |
| 2006 // j = h if (key < array[h].fast_match()) | |
| 2007 __ cmovl(Assembler::less, j, h); | |
| 2008 // i = h if (key >= array[h].fast_match()) | |
| 2009 __ cmovl(Assembler::greaterEqual, i, h); | |
| 2010 // while (i+1 < j) | |
| 2011 __ bind(entry); | |
| 2012 __ leal(h, Address(i, 1)); // i+1 | |
| 2013 __ cmpl(h, j); // i+1 < j | |
| 2014 __ jcc(Assembler::less, loop); | |
| 2015 } | |
| 2016 | |
| 2017 // end of binary search, result index is i (must check again!) | |
| 2018 Label default_case; | |
| 2019 // Convert array[i].match to native byte-ordering before compare | |
| 2020 __ movl(temp, Address(array, i, Address::times_8)); | |
| 2021 __ bswapl(temp); | |
| 2022 __ cmpl(key, temp); | |
| 2023 __ jcc(Assembler::notEqual, default_case); | |
| 2024 | |
| 2025 // entry found -> j = offset | |
| 2026 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
| 2027 __ profile_switch_case(i, key, array); | |
| 2028 __ bswapl(j); | |
| 304 | 2029 __ movl2ptr(j, j); |
| 0 | 2030 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2031 __ addptr(r13, j); |
| 0 | 2032 __ dispatch_only(vtos); |
| 2033 | |
| 2034 // default case -> j = default offset | |
| 2035 __ bind(default_case); | |
| 2036 __ profile_switch_default(i); | |
| 2037 __ movl(j, Address(array, -2 * BytesPerInt)); | |
| 2038 __ bswapl(j); | |
| 304 | 2039 __ movl2ptr(j, j); |
| 0 | 2040 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2041 __ addptr(r13, j); |
| 0 | 2042 __ dispatch_only(vtos); |
| 2043 } | |
| 2044 | |
| 2045 | |
| 2046 void TemplateTable::_return(TosState state) { | |
| 2047 transition(state, state); | |
| 2048 assert(_desc->calls_vm(), | |
| 2049 "inconsistent calls_vm information"); // call in remove_activation | |
| 2050 | |
| 2051 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2052 assert(state == vtos, "only valid state"); | |
| 304 | 2053 __ movptr(c_rarg1, aaddress(0)); |
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2054 __ load_klass(rdi, c_rarg1); |
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2055 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
| 0 | 2056 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
| 2057 Label skip_register_finalizer; | |
| 2058 __ jcc(Assembler::zero, skip_register_finalizer); | |
| 2059 | |
| 2060 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
| 2061 | |
| 2062 __ bind(skip_register_finalizer); | |
| 2063 } | |
| 2064 | |
| 2065 __ remove_activation(state, r13); | |
| 2066 __ jmp(r13); | |
| 2067 } | |
| 2068 | |
| 2069 // ---------------------------------------------------------------------------- | |
| 2070 // Volatile variables demand their effects be made known to all CPU's | |
| 2071 // in order. Store buffers on most chips allow reads & writes to | |
| 2072 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
| 2073 // without some kind of memory barrier (i.e., it's not sufficient that | |
| 2074 // the interpreter does not reorder volatile references, the hardware | |
| 2075 // also must not reorder them). | |
| 2076 // | |
| 2077 // According to the new Java Memory Model (JMM): | |
| 2078 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
| 2079 // writes act as aquire & release, so: | |
| 2080 // (2) A read cannot let unrelated NON-volatile memory refs that | |
| 2081 // happen after the read float up to before the read. It's OK for | |
| 2082 // non-volatile memory refs that happen before the volatile read to | |
| 2083 // float down below it. | |
| 2084 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
| 2085 // memory refs that happen BEFORE the write float down to after the | |
| 2086 // write. It's OK for non-volatile memory refs that happen after the | |
| 2087 // volatile write to float up before it. | |
| 2088 // | |
| 2089 // We only put in barriers around volatile refs (they are expensive), | |
| 2090 // not _between_ memory refs (that would require us to track the | |
| 2091 // flavor of the previous memory refs). Requirements (2) and (3) | |
| 2092 // require some barriers before volatile stores and after volatile | |
| 2093 // loads. These nearly cover requirement (1) but miss the | |
| 2094 // volatile-store-volatile-load case. This final case is placed after | |
| 2095 // volatile-stores although it could just as well go before | |
| 2096 // volatile-loads. | |
| 2097 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
| 2098 order_constraint) { | |
| 2099 // Helper function to insert a is-volatile test and memory barrier | |
| 2100 if (os::is_MP()) { // Not needed on single CPU | |
| 2101 __ membar(order_constraint); | |
| 2102 } | |
| 2103 } | |
| 2104 | |
| 1565 | 2105 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2106 Register Rcache, | |
| 2107 Register index, | |
| 2108 size_t index_size) { | |
| 0 | 2109 const Register temp = rbx; |
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2110 assert_different_registers(Rcache, index, temp); |
| 1565 | 2111 |
| 0 | 2112 Label resolved; |
| 1565 | 2113 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2114 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2115 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
| 1108 | 2116 __ jcc(Assembler::equal, resolved); |
| 0 | 2117 |
| 2118 // resolve first time through | |
| 2119 address entry; | |
| 2120 switch (bytecode()) { | |
| 2121 case Bytecodes::_getstatic: | |
| 2122 case Bytecodes::_putstatic: | |
| 2123 case Bytecodes::_getfield: | |
| 2124 case Bytecodes::_putfield: | |
| 2125 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
| 2126 break; | |
| 2127 case Bytecodes::_invokevirtual: | |
| 2128 case Bytecodes::_invokespecial: | |
| 2129 case Bytecodes::_invokestatic: | |
| 2130 case Bytecodes::_invokeinterface: | |
| 2131 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
| 2132 break; | |
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2133 case Bytecodes::_invokehandle: |
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2134 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2135 break; |
| 1108 | 2136 case Bytecodes::_invokedynamic: |
| 2137 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
| 2138 break; | |
| 0 | 2139 default: |
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2140 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
| 0 | 2141 break; |
| 2142 } | |
| 2143 __ movl(temp, (int) bytecode()); | |
| 2144 __ call_VM(noreg, entry, temp); | |
| 2145 | |
| 2146 // Update registers with resolved info | |
| 1565 | 2147 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2148 __ bind(resolved); |
| 2149 } | |
| 2150 | |
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2151 // The cache and index registers must be set before call |
| 0 | 2152 void TemplateTable::load_field_cp_cache_entry(Register obj, |
| 2153 Register cache, | |
| 2154 Register index, | |
| 2155 Register off, | |
| 2156 Register flags, | |
| 2157 bool is_static = false) { | |
| 2158 assert_different_registers(cache, index, flags, off); | |
| 2159 | |
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2160 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2161 // Field offset |
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2162 __ movptr(off, Address(cache, index, Address::times_ptr, |
| 304 | 2163 in_bytes(cp_base_offset + |
| 2164 ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2165 // Flags |
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2166 __ movl(flags, Address(cache, index, Address::times_ptr, |
| 0 | 2167 in_bytes(cp_base_offset + |
| 2168 ConstantPoolCacheEntry::flags_offset()))); | |
| 2169 | |
| 2170 // klass overwrite register | |
| 2171 if (is_static) { | |
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2172 __ movptr(obj, Address(cache, index, Address::times_ptr, |
| 304 | 2173 in_bytes(cp_base_offset + |
| 2174 ConstantPoolCacheEntry::f1_offset()))); | |
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2175 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2176 __ movptr(obj, Address(obj, mirror_offset)); |
| 0 | 2177 } |
| 2178 } | |
| 2179 | |
| 2180 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2181 Register method, | |
| 2182 Register itable_index, | |
| 2183 Register flags, | |
| 2184 bool is_invokevirtual, | |
| 1565 | 2185 bool is_invokevfinal, /*unused*/ |
| 2186 bool is_invokedynamic) { | |
| 0 | 2187 // setup registers |
| 2188 const Register cache = rcx; | |
| 2189 const Register index = rdx; | |
| 2190 assert_different_registers(method, flags); | |
| 2191 assert_different_registers(method, cache, index); | |
| 2192 assert_different_registers(itable_index, flags); | |
| 2193 assert_different_registers(itable_index, cache, index); | |
| 2194 // determine constant pool cache field offsets | |
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2195 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2196 const int method_offset = in_bytes( |
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2197 ConstantPoolCache::base_offset() + |
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2198 ((byte_no == f2_byte) |
| 0 | 2199 ? ConstantPoolCacheEntry::f2_offset() |
| 2200 : ConstantPoolCacheEntry::f1_offset())); | |
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2201 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2202 ConstantPoolCacheEntry::flags_offset()); |
| 2203 // access constant pool cache fields | |
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2204 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2205 ConstantPoolCacheEntry::f2_offset()); |
| 2206 | |
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2207 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2208 resolve_cache_and_index(byte_no, cache, index, index_size); |
| 1565 | 2209 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2210 |
| 0 | 2211 if (itable_index != noreg) { |
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2212 // pick up itable or appendix index from f2 also: |
| 1565 | 2213 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
| 0 | 2214 } |
| 1565 | 2215 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
| 0 | 2216 } |
| 2217 | |
| 2218 // Correct values of the cache and index registers are preserved. | |
| 2219 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
| 2220 bool is_static, bool has_tos) { | |
| 2221 // do the JVMTI work here to avoid disturbing the register state below | |
| 2222 // We use c_rarg registers here because we want to use the register used in | |
| 2223 // the call to the VM | |
| 2224 if (JvmtiExport::can_post_field_access()) { | |
| 2225 // Check to see if a field access watch has been set before we | |
| 2226 // take the time to call into the VM. | |
| 2227 Label L1; | |
| 2228 assert_different_registers(cache, index, rax); | |
| 2229 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2230 __ testl(rax, rax); | |
| 2231 __ jcc(Assembler::zero, L1); | |
| 2232 | |
| 2233 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
| 2234 | |
| 2235 // cache entry pointer | |
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2236 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
| 0 | 2237 __ shll(c_rarg3, LogBytesPerWord); |
| 304 | 2238 __ addptr(c_rarg2, c_rarg3); |
| 0 | 2239 if (is_static) { |
| 2240 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
| 2241 } else { | |
| 304 | 2242 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
| 0 | 2243 __ verify_oop(c_rarg1); |
| 2244 } | |
| 2245 // c_rarg1: object pointer or NULL | |
| 2246 // c_rarg2: cache entry pointer | |
| 2247 // c_rarg3: jvalue object on the stack | |
| 2248 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 2249 InterpreterRuntime::post_field_access), | |
| 2250 c_rarg1, c_rarg2, c_rarg3); | |
| 2251 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2252 __ bind(L1); | |
| 2253 } | |
| 2254 } | |
| 2255 | |
| 2256 void TemplateTable::pop_and_check_object(Register r) { | |
| 2257 __ pop_ptr(r); | |
| 2258 __ null_check(r); // for field access must check obj. | |
| 2259 __ verify_oop(r); | |
| 2260 } | |
| 2261 | |
| 2262 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2263 transition(vtos, vtos); | |
| 2264 | |
| 2265 const Register cache = rcx; | |
| 2266 const Register index = rdx; | |
| 2267 const Register obj = c_rarg3; | |
| 2268 const Register off = rbx; | |
| 2269 const Register flags = rax; | |
| 2270 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
| 2271 | |
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2272 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2273 jvmti_post_field_access(cache, index, is_static, false); |
| 2274 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2275 | |
| 2276 if (!is_static) { | |
| 2277 // obj is on the stack | |
| 2278 pop_and_check_object(obj); | |
| 2279 } | |
| 2280 | |
| 2281 const Address field(obj, off, Address::times_1); | |
| 2282 | |
| 2283 Label Done, notByte, notInt, notShort, notChar, | |
| 2284 notLong, notFloat, notObj, notDouble; | |
| 2285 | |
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2286 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2287 // Make sure we don't need to mask edx after the above shift |
| 0 | 2288 assert(btos == 0, "change code, btos != 0"); |
| 2289 | |
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2290 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2291 __ jcc(Assembler::notZero, notByte); |
| 2292 // btos | |
| 2293 __ load_signed_byte(rax, field); | |
| 2294 __ push(btos); | |
| 2295 // Rewrite bytecode to be faster | |
| 2296 if (!is_static) { | |
| 2297 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
| 2298 } | |
| 2299 __ jmp(Done); | |
| 2300 | |
| 2301 __ bind(notByte); | |
| 2302 __ cmpl(flags, atos); | |
| 2303 __ jcc(Assembler::notEqual, notObj); | |
| 2304 // atos | |
|
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2305 __ load_heap_oop(rax, field); |
| 0 | 2306 __ push(atos); |
| 2307 if (!is_static) { | |
| 2308 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
| 2309 } | |
| 2310 __ jmp(Done); | |
| 2311 | |
| 2312 __ bind(notObj); | |
| 2313 __ cmpl(flags, itos); | |
| 2314 __ jcc(Assembler::notEqual, notInt); | |
| 2315 // itos | |
| 2316 __ movl(rax, field); | |
| 2317 __ push(itos); | |
| 2318 // Rewrite bytecode to be faster | |
| 2319 if (!is_static) { | |
| 2320 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
| 2321 } | |
| 2322 __ jmp(Done); | |
| 2323 | |
| 2324 __ bind(notInt); | |
| 2325 __ cmpl(flags, ctos); | |
| 2326 __ jcc(Assembler::notEqual, notChar); | |
| 2327 // ctos | |
|
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2328 __ load_unsigned_short(rax, field); |
| 0 | 2329 __ push(ctos); |
| 2330 // Rewrite bytecode to be faster | |
| 2331 if (!is_static) { | |
| 2332 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
| 2333 } | |
| 2334 __ jmp(Done); | |
| 2335 | |
| 2336 __ bind(notChar); | |
| 2337 __ cmpl(flags, stos); | |
| 2338 __ jcc(Assembler::notEqual, notShort); | |
| 2339 // stos | |
|
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2340 __ load_signed_short(rax, field); |
| 0 | 2341 __ push(stos); |
| 2342 // Rewrite bytecode to be faster | |
| 2343 if (!is_static) { | |
| 2344 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
| 2345 } | |
| 2346 __ jmp(Done); | |
| 2347 | |
| 2348 __ bind(notShort); | |
| 2349 __ cmpl(flags, ltos); | |
| 2350 __ jcc(Assembler::notEqual, notLong); | |
| 2351 // ltos | |
| 2352 __ movq(rax, field); | |
| 2353 __ push(ltos); | |
| 2354 // Rewrite bytecode to be faster | |
| 2355 if (!is_static) { | |
| 2356 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
| 2357 } | |
| 2358 __ jmp(Done); | |
| 2359 | |
| 2360 __ bind(notLong); | |
| 2361 __ cmpl(flags, ftos); | |
| 2362 __ jcc(Assembler::notEqual, notFloat); | |
| 2363 // ftos | |
| 2364 __ movflt(xmm0, field); | |
| 2365 __ push(ftos); | |
| 2366 // Rewrite bytecode to be faster | |
| 2367 if (!is_static) { | |
| 2368 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
| 2369 } | |
| 2370 __ jmp(Done); | |
| 2371 | |
| 2372 __ bind(notFloat); | |
| 2373 #ifdef ASSERT | |
| 2374 __ cmpl(flags, dtos); | |
| 2375 __ jcc(Assembler::notEqual, notDouble); | |
| 2376 #endif | |
| 2377 // dtos | |
| 2378 __ movdbl(xmm0, field); | |
| 2379 __ push(dtos); | |
| 2380 // Rewrite bytecode to be faster | |
| 2381 if (!is_static) { | |
| 2382 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
| 2383 } | |
| 2384 #ifdef ASSERT | |
| 2385 __ jmp(Done); | |
| 2386 | |
| 2387 __ bind(notDouble); | |
| 2388 __ stop("Bad state"); | |
| 2389 #endif | |
| 2390 | |
| 2391 __ bind(Done); | |
| 2392 // [jk] not needed currently | |
| 2393 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
| 2394 // Assembler::LoadStore)); | |
| 2395 } | |
| 2396 | |
| 2397 | |
| 2398 void TemplateTable::getfield(int byte_no) { | |
| 2399 getfield_or_static(byte_no, false); | |
| 2400 } | |
| 2401 | |
| 2402 void TemplateTable::getstatic(int byte_no) { | |
| 2403 getfield_or_static(byte_no, true); | |
| 2404 } | |
| 2405 | |
| 2406 // The registers cache and index expected to be set before call. | |
| 2407 // The function may destroy various registers, just not the cache and index registers. | |
| 2408 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
| 2409 transition(vtos, vtos); | |
| 2410 | |
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2411 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2412 |
| 2413 if (JvmtiExport::can_post_field_modification()) { | |
| 2414 // Check to see if a field modification watch has been set before | |
| 2415 // we take the time to call into the VM. | |
| 2416 Label L1; | |
| 2417 assert_different_registers(cache, index, rax); | |
| 2418 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2419 __ testl(rax, rax); | |
| 2420 __ jcc(Assembler::zero, L1); | |
| 2421 | |
| 2422 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
| 2423 | |
| 2424 if (is_static) { | |
| 2425 // Life is simple. Null out the object pointer. | |
| 2426 __ xorl(c_rarg1, c_rarg1); | |
| 2427 } else { | |
| 2428 // Life is harder. The stack holds the value on top, followed by | |
| 2429 // the object. We don't know the size of the value, though; it | |
| 2430 // could be one or two words depending on its type. As a result, | |
| 2431 // we must find the type to determine where the object is. | |
| 2432 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
| 2433 Address::times_8, | |
| 2434 in_bytes(cp_base_offset + | |
| 2435 ConstantPoolCacheEntry::flags_offset()))); | |
|
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2436 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2437 // Make sure we don't need to mask rcx after the above shift |
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2438 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 2439 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
| 0 | 2440 __ cmpl(c_rarg3, ltos); |
| 304 | 2441 __ cmovptr(Assembler::equal, |
| 2442 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
| 0 | 2443 __ cmpl(c_rarg3, dtos); |
| 304 | 2444 __ cmovptr(Assembler::equal, |
| 2445 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
| 0 | 2446 } |
| 2447 // cache entry pointer | |
| 304 | 2448 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
| 0 | 2449 __ shll(rscratch1, LogBytesPerWord); |
| 304 | 2450 __ addptr(c_rarg2, rscratch1); |
| 0 | 2451 // object (tos) |
| 304 | 2452 __ mov(c_rarg3, rsp); |
| 0 | 2453 // c_rarg1: object pointer set up above (NULL if static) |
| 2454 // c_rarg2: cache entry pointer | |
| 2455 // c_rarg3: jvalue object on the stack | |
| 2456 __ call_VM(noreg, | |
| 2457 CAST_FROM_FN_PTR(address, | |
| 2458 InterpreterRuntime::post_field_modification), | |
| 2459 c_rarg1, c_rarg2, c_rarg3); | |
| 2460 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2461 __ bind(L1); | |
| 2462 } | |
| 2463 } | |
| 2464 | |
| 2465 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2466 transition(vtos, vtos); | |
| 2467 | |
| 2468 const Register cache = rcx; | |
| 2469 const Register index = rdx; | |
| 2470 const Register obj = rcx; | |
| 2471 const Register off = rbx; | |
| 2472 const Register flags = rax; | |
| 2473 const Register bc = c_rarg3; | |
| 2474 | |
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2475 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2476 jvmti_post_field_mod(cache, index, is_static); |
| 2477 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2478 | |
| 2479 // [jk] not needed currently | |
| 2480 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2481 // Assembler::StoreStore)); | |
| 2482 | |
| 2483 Label notVolatile, Done; | |
| 2484 __ movl(rdx, flags); | |
|
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2485 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2486 __ andl(rdx, 0x1); |
| 2487 | |
| 2488 // field address | |
| 2489 const Address field(obj, off, Address::times_1); | |
| 2490 | |
| 2491 Label notByte, notInt, notShort, notChar, | |
| 2492 notLong, notFloat, notObj, notDouble; | |
| 2493 | |
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2494 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2495 |
| 2496 assert(btos == 0, "change code, btos != 0"); | |
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2497 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2498 __ jcc(Assembler::notZero, notByte); |
|
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2499 |
| 0 | 2500 // btos |
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2501 { |
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2502 __ pop(btos); |
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2503 if (!is_static) pop_and_check_object(obj); |
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2504 __ movb(field, rax); |
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2505 if (!is_static) { |
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2506 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2507 } |
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2508 __ jmp(Done); |
| 0 | 2509 } |
| 2510 | |
| 2511 __ bind(notByte); | |
| 2512 __ cmpl(flags, atos); | |
| 2513 __ jcc(Assembler::notEqual, notObj); | |
|
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2514 |
| 0 | 2515 // atos |
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2516 { |
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2517 __ pop(atos); |
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2518 if (!is_static) pop_and_check_object(obj); |
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2519 // Store into the field |
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2520 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2521 if (!is_static) { |
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2522 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2523 } |
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2524 __ jmp(Done); |
| 0 | 2525 } |
| 2526 | |
| 2527 __ bind(notObj); | |
| 2528 __ cmpl(flags, itos); | |
| 2529 __ jcc(Assembler::notEqual, notInt); | |
|
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2530 |
| 0 | 2531 // itos |
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2532 { |
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2533 __ pop(itos); |
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2534 if (!is_static) pop_and_check_object(obj); |
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2535 __ movl(field, rax); |
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2536 if (!is_static) { |
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2537 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2538 } |
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2539 __ jmp(Done); |
| 0 | 2540 } |
| 2541 | |
| 2542 __ bind(notInt); | |
| 2543 __ cmpl(flags, ctos); | |
| 2544 __ jcc(Assembler::notEqual, notChar); | |
|
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2545 |
| 0 | 2546 // ctos |
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2547 { |
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2548 __ pop(ctos); |
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2549 if (!is_static) pop_and_check_object(obj); |
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2550 __ movw(field, rax); |
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2551 if (!is_static) { |
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2552 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2553 } |
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2554 __ jmp(Done); |
| 0 | 2555 } |
| 2556 | |
| 2557 __ bind(notChar); | |
| 2558 __ cmpl(flags, stos); | |
| 2559 __ jcc(Assembler::notEqual, notShort); | |
|
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2560 |
| 0 | 2561 // stos |
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2562 { |
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2563 __ pop(stos); |
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2564 if (!is_static) pop_and_check_object(obj); |
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2565 __ movw(field, rax); |
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2566 if (!is_static) { |
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2567 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
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2568 } |
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2569 __ jmp(Done); |
| 0 | 2570 } |
| 2571 | |
| 2572 __ bind(notShort); | |
| 2573 __ cmpl(flags, ltos); | |
| 2574 __ jcc(Assembler::notEqual, notLong); | |
|
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2575 |
| 0 | 2576 // ltos |
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2577 { |
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2578 __ pop(ltos); |
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2579 if (!is_static) pop_and_check_object(obj); |
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2580 __ movq(field, rax); |
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2581 if (!is_static) { |
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2582 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
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2583 } |
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|
2584 __ jmp(Done); |
| 0 | 2585 } |
| 2586 | |
| 2587 __ bind(notLong); | |
| 2588 __ cmpl(flags, ftos); | |
| 2589 __ jcc(Assembler::notEqual, notFloat); | |
|
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|
2590 |
| 0 | 2591 // ftos |
|
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|
2592 { |
|
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|
2593 __ pop(ftos); |
|
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|
2594 if (!is_static) pop_and_check_object(obj); |
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2595 __ movflt(field, xmm0); |
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|
2596 if (!is_static) { |
|
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2597 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
|
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|
2598 } |
|
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|
2599 __ jmp(Done); |
| 0 | 2600 } |
| 2601 | |
| 2602 __ bind(notFloat); | |
| 2603 #ifdef ASSERT | |
| 2604 __ cmpl(flags, dtos); | |
| 2605 __ jcc(Assembler::notEqual, notDouble); | |
| 2606 #endif | |
|
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|
2607 |
| 0 | 2608 // dtos |
|
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|
2609 { |
|
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2610 __ pop(dtos); |
|
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|
2611 if (!is_static) pop_and_check_object(obj); |
|
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2612 __ movdbl(field, xmm0); |
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|
2613 if (!is_static) { |
|
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2614 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
|
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|
2615 } |
| 0 | 2616 } |
| 2617 | |
| 2618 #ifdef ASSERT | |
| 2619 __ jmp(Done); | |
| 2620 | |
| 2621 __ bind(notDouble); | |
| 2622 __ stop("Bad state"); | |
| 2623 #endif | |
| 2624 | |
| 2625 __ bind(Done); | |
|
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|
2626 |
| 0 | 2627 // Check for volatile store |
| 2628 __ testl(rdx, rdx); | |
| 2629 __ jcc(Assembler::zero, notVolatile); | |
| 2630 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2631 Assembler::StoreStore)); | |
| 2632 __ bind(notVolatile); | |
| 2633 } | |
| 2634 | |
| 2635 void TemplateTable::putfield(int byte_no) { | |
| 2636 putfield_or_static(byte_no, false); | |
| 2637 } | |
| 2638 | |
| 2639 void TemplateTable::putstatic(int byte_no) { | |
| 2640 putfield_or_static(byte_no, true); | |
| 2641 } | |
| 2642 | |
| 2643 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2644 if (JvmtiExport::can_post_field_modification()) { | |
| 2645 // Check to see if a field modification watch has been set before | |
| 2646 // we take the time to call into the VM. | |
| 2647 Label L2; | |
| 2648 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2649 __ testl(c_rarg3, c_rarg3); | |
| 2650 __ jcc(Assembler::zero, L2); | |
| 2651 __ pop_ptr(rbx); // copy the object pointer from tos | |
| 2652 __ verify_oop(rbx); | |
| 2653 __ push_ptr(rbx); // put the object pointer back on tos | |
|
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2654 // Save tos values before call_VM() clobbers them. Since we have |
|
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2655 // to do it for every data type, we use the saved values as the |
|
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2656 // jvalue object. |
| 0 | 2657 switch (bytecode()) { // load values into the jvalue object |
|
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2658 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
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2659 case Bytecodes::_fast_bputfield: // fall through |
| 0 | 2660 case Bytecodes::_fast_sputfield: // fall through |
|
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2661 case Bytecodes::_fast_cputfield: // fall through |
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2662 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
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2663 case Bytecodes::_fast_dputfield: __ push_d(); break; |
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2664 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2665 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
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2666 |
| 0 | 2667 default: |
| 2668 ShouldNotReachHere(); | |
| 2669 } | |
|
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2670 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
| 0 | 2671 // access constant pool cache entry |
| 2672 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
| 2673 __ verify_oop(rbx); | |
| 2674 // rbx: object pointer copied above | |
| 2675 // c_rarg2: cache entry pointer | |
| 2676 // c_rarg3: jvalue object on the stack | |
| 2677 __ call_VM(noreg, | |
| 2678 CAST_FROM_FN_PTR(address, | |
| 2679 InterpreterRuntime::post_field_modification), | |
| 2680 rbx, c_rarg2, c_rarg3); | |
|
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2681 |
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|
2682 switch (bytecode()) { // restore tos values |
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2683 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
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2684 case Bytecodes::_fast_bputfield: // fall through |
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2685 case Bytecodes::_fast_sputfield: // fall through |
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2686 case Bytecodes::_fast_cputfield: // fall through |
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2687 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
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2688 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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2689 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2690 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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|
2691 } |
| 0 | 2692 __ bind(L2); |
| 2693 } | |
| 2694 } | |
| 2695 | |
| 2696 void TemplateTable::fast_storefield(TosState state) { | |
| 2697 transition(state, vtos); | |
| 2698 | |
|
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2699 ByteSize base = ConstantPoolCache::base_offset(); |
| 0 | 2700 |
| 2701 jvmti_post_fast_field_mod(); | |
| 2702 | |
| 2703 // access constant pool cache | |
| 2704 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2705 | |
| 2706 // test for volatile with rdx | |
| 2707 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
| 2708 in_bytes(base + | |
| 2709 ConstantPoolCacheEntry::flags_offset()))); | |
| 2710 | |
| 2711 // replace index with field offset from cache entry | |
| 304 | 2712 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
| 2713 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2714 |
| 2715 // [jk] not needed currently | |
| 2716 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2717 // Assembler::StoreStore)); | |
| 2718 | |
| 2719 Label notVolatile; | |
|
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|
2720 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2721 __ andl(rdx, 0x1); |
| 2722 | |
| 2723 // Get object from stack | |
| 2724 pop_and_check_object(rcx); | |
| 2725 | |
| 2726 // field address | |
| 2727 const Address field(rcx, rbx, Address::times_1); | |
| 2728 | |
| 2729 // access field | |
| 2730 switch (bytecode()) { | |
| 2731 case Bytecodes::_fast_aputfield: | |
|
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|
2732 do_oop_store(_masm, field, rax, _bs->kind(), false); |
| 0 | 2733 break; |
| 2734 case Bytecodes::_fast_lputfield: | |
| 2735 __ movq(field, rax); | |
| 2736 break; | |
| 2737 case Bytecodes::_fast_iputfield: | |
| 2738 __ movl(field, rax); | |
| 2739 break; | |
| 2740 case Bytecodes::_fast_bputfield: | |
| 2741 __ movb(field, rax); | |
| 2742 break; | |
| 2743 case Bytecodes::_fast_sputfield: | |
| 2744 // fall through | |
| 2745 case Bytecodes::_fast_cputfield: | |
| 2746 __ movw(field, rax); | |
| 2747 break; | |
| 2748 case Bytecodes::_fast_fputfield: | |
| 2749 __ movflt(field, xmm0); | |
| 2750 break; | |
| 2751 case Bytecodes::_fast_dputfield: | |
| 2752 __ movdbl(field, xmm0); | |
| 2753 break; | |
| 2754 default: | |
| 2755 ShouldNotReachHere(); | |
| 2756 } | |
| 2757 | |
| 2758 // Check for volatile store | |
| 2759 __ testl(rdx, rdx); | |
| 2760 __ jcc(Assembler::zero, notVolatile); | |
| 2761 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2762 Assembler::StoreStore)); | |
| 2763 __ bind(notVolatile); | |
| 2764 } | |
| 2765 | |
| 2766 | |
| 2767 void TemplateTable::fast_accessfield(TosState state) { | |
| 2768 transition(atos, state); | |
| 2769 | |
| 2770 // Do the JVMTI work here to avoid disturbing the register state below | |
| 2771 if (JvmtiExport::can_post_field_access()) { | |
| 2772 // Check to see if a field access watch has been set before we | |
| 2773 // take the time to call into the VM. | |
| 2774 Label L1; | |
| 2775 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2776 __ testl(rcx, rcx); | |
| 2777 __ jcc(Assembler::zero, L1); | |
| 2778 // access constant pool cache entry | |
| 2779 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
|
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2780 __ verify_oop(rax); |
|
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|
2781 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
| 304 | 2782 __ mov(c_rarg1, rax); |
| 0 | 2783 // c_rarg1: object pointer copied above |
| 2784 // c_rarg2: cache entry pointer | |
| 2785 __ call_VM(noreg, | |
| 2786 CAST_FROM_FN_PTR(address, | |
| 2787 InterpreterRuntime::post_field_access), | |
| 2788 c_rarg1, c_rarg2); | |
|
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|
2789 __ pop_ptr(rax); // restore object pointer |
| 0 | 2790 __ bind(L1); |
| 2791 } | |
| 2792 | |
| 2793 // access constant pool cache | |
| 2794 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2795 // replace index with field offset from cache entry | |
| 2796 // [jk] not needed currently | |
| 2797 // if (os::is_MP()) { | |
| 2798 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
|
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2799 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2800 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2801 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2802 // __ andl(rdx, 0x1); |
| 2803 // } | |
| 304 | 2804 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
|
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|
2805 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2806 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2807 |
| 2808 // rax: object | |
| 2809 __ verify_oop(rax); | |
| 2810 __ null_check(rax); | |
| 2811 Address field(rax, rbx, Address::times_1); | |
| 2812 | |
| 2813 // access field | |
| 2814 switch (bytecode()) { | |
| 2815 case Bytecodes::_fast_agetfield: | |
|
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2816 __ load_heap_oop(rax, field); |
| 0 | 2817 __ verify_oop(rax); |
| 2818 break; | |
| 2819 case Bytecodes::_fast_lgetfield: | |
| 2820 __ movq(rax, field); | |
| 2821 break; | |
| 2822 case Bytecodes::_fast_igetfield: | |
| 2823 __ movl(rax, field); | |
| 2824 break; | |
| 2825 case Bytecodes::_fast_bgetfield: | |
| 2826 __ movsbl(rax, field); | |
| 2827 break; | |
| 2828 case Bytecodes::_fast_sgetfield: | |
|
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|
2829 __ load_signed_short(rax, field); |
| 0 | 2830 break; |
| 2831 case Bytecodes::_fast_cgetfield: | |
|
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|
2832 __ load_unsigned_short(rax, field); |
| 0 | 2833 break; |
| 2834 case Bytecodes::_fast_fgetfield: | |
| 2835 __ movflt(xmm0, field); | |
| 2836 break; | |
| 2837 case Bytecodes::_fast_dgetfield: | |
| 2838 __ movdbl(xmm0, field); | |
| 2839 break; | |
| 2840 default: | |
| 2841 ShouldNotReachHere(); | |
| 2842 } | |
| 2843 // [jk] not needed currently | |
| 2844 // if (os::is_MP()) { | |
| 2845 // Label notVolatile; | |
| 2846 // __ testl(rdx, rdx); | |
| 2847 // __ jcc(Assembler::zero, notVolatile); | |
| 2848 // __ membar(Assembler::LoadLoad); | |
| 2849 // __ bind(notVolatile); | |
| 2850 //}; | |
| 2851 } | |
| 2852 | |
| 2853 void TemplateTable::fast_xaccess(TosState state) { | |
| 2854 transition(vtos, state); | |
| 2855 | |
| 2856 // get receiver | |
| 304 | 2857 __ movptr(rax, aaddress(0)); |
| 0 | 2858 // access constant pool cache |
| 2859 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
| 304 | 2860 __ movptr(rbx, |
| 2861 Address(rcx, rdx, Address::times_8, | |
|
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2862 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2863 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2864 // make sure exception is reported in correct bcp range (getfield is |
| 2865 // next instruction) | |
| 304 | 2866 __ increment(r13); |
| 0 | 2867 __ null_check(rax); |
| 2868 switch (state) { | |
| 2869 case itos: | |
| 2870 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
| 2871 break; | |
| 2872 case atos: | |
|
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2873 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
| 0 | 2874 __ verify_oop(rax); |
| 2875 break; | |
| 2876 case ftos: | |
| 2877 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
| 2878 break; | |
| 2879 default: | |
| 2880 ShouldNotReachHere(); | |
| 2881 } | |
| 2882 | |
| 2883 // [jk] not needed currently | |
| 2884 // if (os::is_MP()) { | |
| 2885 // Label notVolatile; | |
| 2886 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
|
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2887 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2888 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2889 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2890 // __ testl(rdx, 0x1); |
| 2891 // __ jcc(Assembler::zero, notVolatile); | |
| 2892 // __ membar(Assembler::LoadLoad); | |
| 2893 // __ bind(notVolatile); | |
| 2894 // } | |
| 2895 | |
| 304 | 2896 __ decrement(r13); |
| 0 | 2897 } |
| 2898 | |
| 2899 | |
| 2900 | |
| 2901 //----------------------------------------------------------------------------- | |
| 2902 // Calls | |
| 2903 | |
| 2904 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2905 // implemented elsewhere | |
| 2906 ShouldNotReachHere(); | |
| 2907 } | |
| 2908 | |
|
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2909 void TemplateTable::prepare_invoke(int byte_no, |
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2910 Register method, // linked method (or i-klass) |
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2911 Register index, // itable index, MethodType, etc. |
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2912 Register recv, // if caller wants to see it |
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2913 Register flags // if caller wants to test it |
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2914 ) { |
| 0 | 2915 // determine flags |
|
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2916 const Bytecodes::Code code = bytecode(); |
| 0 | 2917 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
| 1108 | 2918 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
|
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2919 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
| 0 | 2920 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
| 2921 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
|
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2922 const bool load_receiver = (recv != noreg); |
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2923 const bool save_flags = (flags != noreg); |
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2924 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2925 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
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2926 assert(flags == noreg || flags == rdx, ""); |
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2927 assert(recv == noreg || recv == rcx, ""); |
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2928 |
| 0 | 2929 // setup registers & access constant pool cache |
|
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2930 if (recv == noreg) recv = rcx; |
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2931 if (flags == noreg) flags = rdx; |
| 0 | 2932 assert_different_registers(method, index, recv, flags); |
| 2933 | |
| 2934 // save 'interpreter return address' | |
| 2935 __ save_bcp(); | |
| 2936 | |
| 1565 | 2937 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
| 0 | 2938 |
|
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2939 // maybe push appendix to arguments (just before return address) |
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2940 if (is_invokedynamic || is_invokehandle) { |
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2941 Label L_no_push; |
|
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2942 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
|
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2943 __ jcc(Assembler::zero, L_no_push); |
|
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2944 // Push the appendix as a trailing parameter. |
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2945 // This must be done before we get the receiver, |
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2946 // since the parameter_size includes it. |
|
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2947 __ push(rbx); |
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2948 __ mov(rbx, index); |
|
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2949 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2950 __ load_resolved_reference_at_index(index, rbx); |
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2951 __ pop(rbx); |
|
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2952 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2953 __ bind(L_no_push); |
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2954 } |
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2955 |
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2956 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2957 // Note: no return address pushed yet |
| 0 | 2958 if (load_receiver) { |
| 2959 __ movl(recv, flags); | |
|
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2960 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2961 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2962 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2963 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
| 1304 | 2964 __ movptr(recv, recv_addr); |
| 2965 __ verify_oop(recv); | |
| 0 | 2966 } |
| 2967 | |
| 2968 if (save_flags) { | |
| 2969 __ movl(r13, flags); | |
| 2970 } | |
| 2971 | |
| 2972 // compute return type | |
|
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2973 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
|
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2974 // Make sure we don't need to mask flags after the above shift |
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2975 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2976 // load return address |
| 2977 { | |
|
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2978 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2979 (address)Interpreter::return_5_addrs_by_index_table() : |
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|
2980 (address)Interpreter::return_3_addrs_by_index_table(); |
| 1108 | 2981 ExternalAddress table(table_addr); |
| 2982 __ lea(rscratch1, table); | |
| 2983 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
| 0 | 2984 } |
| 2985 | |
| 2986 // push return address | |
| 304 | 2987 __ push(flags); |
| 0 | 2988 |
|
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2989 // Restore flags value from the constant pool cache, and restore rsi |
| 0 | 2990 // for later null checks. r13 is the bytecode pointer |
| 2991 if (save_flags) { | |
| 2992 __ movl(flags, r13); | |
| 2993 __ restore_bcp(); | |
| 2994 } | |
| 2995 } | |
| 2996 | |
| 2997 | |
| 2998 void TemplateTable::invokevirtual_helper(Register index, | |
| 2999 Register recv, | |
| 3000 Register flags) { | |
| 1783 | 3001 // Uses temporary registers rax, rdx |
| 3002 assert_different_registers(index, recv, rax, rdx); | |
|
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3003 assert(index == rbx, ""); |
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3004 assert(recv == rcx, ""); |
| 0 | 3005 |
| 3006 // Test for an invoke of a final method | |
| 3007 Label notFinal; | |
| 3008 __ movl(rax, flags); | |
|
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3009 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
| 0 | 3010 __ jcc(Assembler::zero, notFinal); |
| 3011 | |
| 3012 const Register method = index; // method must be rbx | |
| 3013 assert(method == rbx, | |
|
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3014 "Method* must be rbx for interpreter calling convention"); |
| 0 | 3015 |
| 3016 // do the call - the index is actually the method to call | |
|
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3017 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
| 0 | 3018 |
| 3019 // It's final, need a null check here! | |
| 3020 __ null_check(recv); | |
| 3021 | |
| 3022 // profile this call | |
| 3023 __ profile_final_call(rax); | |
| 3024 | |
| 3025 __ jump_from_interpreted(method, rax); | |
| 3026 | |
| 3027 __ bind(notFinal); | |
| 3028 | |
| 3029 // get receiver klass | |
| 3030 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
|
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3031 __ load_klass(rax, recv); |
| 0 | 3032 |
| 3033 // profile this call | |
| 3034 __ profile_virtual_call(rax, r14, rdx); | |
| 3035 | |
|
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3036 // get target Method* & entry point |
|
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|
3037 __ lookup_virtual_method(rax, index, method); |
| 0 | 3038 __ jump_from_interpreted(method, rdx); |
| 3039 } | |
| 3040 | |
| 3041 | |
| 3042 void TemplateTable::invokevirtual(int byte_no) { | |
| 3043 transition(vtos, vtos); | |
| 1565 | 3044 assert(byte_no == f2_byte, "use this argument"); |
|
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3045 prepare_invoke(byte_no, |
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3046 rbx, // method or vtable index |
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3047 noreg, // unused itable index |
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|
3048 rcx, rdx); // recv, flags |
| 0 | 3049 |
| 3050 // rbx: index | |
| 3051 // rcx: receiver | |
| 3052 // rdx: flags | |
| 3053 | |
| 3054 invokevirtual_helper(rbx, rcx, rdx); | |
| 3055 } | |
| 3056 | |
| 3057 | |
| 3058 void TemplateTable::invokespecial(int byte_no) { | |
| 3059 transition(vtos, vtos); | |
| 1565 | 3060 assert(byte_no == f1_byte, "use this argument"); |
|
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3061 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
|
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|
3062 rcx); // get receiver also for null check |
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3063 __ verify_oop(rcx); |
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3064 __ null_check(rcx); |
| 0 | 3065 // do the call |
| 3066 __ profile_call(rax); | |
| 3067 __ jump_from_interpreted(rbx, rax); | |
| 3068 } | |
| 3069 | |
| 3070 | |
| 3071 void TemplateTable::invokestatic(int byte_no) { | |
| 3072 transition(vtos, vtos); | |
| 1565 | 3073 assert(byte_no == f1_byte, "use this argument"); |
|
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3074 prepare_invoke(byte_no, rbx); // get f1 Method* |
| 0 | 3075 // do the call |
| 3076 __ profile_call(rax); | |
| 3077 __ jump_from_interpreted(rbx, rax); | |
| 3078 } | |
| 3079 | |
| 3080 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3081 transition(vtos, vtos); | |
| 1565 | 3082 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3083 __ stop("fast_invokevfinal not used on amd64"); |
| 3084 } | |
| 3085 | |
| 3086 void TemplateTable::invokeinterface(int byte_no) { | |
| 3087 transition(vtos, vtos); | |
| 1565 | 3088 assert(byte_no == f1_byte, "use this argument"); |
|
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3089 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
|
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|
3090 rcx, rdx); // recv, flags |
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3091 |
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3092 // rax: interface klass (from f1) |
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3093 // rbx: itable index (from f2) |
| 0 | 3094 // rcx: receiver |
| 3095 // rdx: flags | |
| 3096 | |
| 3097 // Special case of invokeinterface called for virtual method of | |
| 3098 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3099 // This code isn't produced by javac, but could be produced by | |
| 3100 // another compliant java compiler. | |
| 3101 Label notMethod; | |
| 3102 __ movl(r14, rdx); | |
|
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|
3103 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
| 0 | 3104 __ jcc(Assembler::zero, notMethod); |
| 3105 | |
| 3106 invokevirtual_helper(rbx, rcx, rdx); | |
| 3107 __ bind(notMethod); | |
| 3108 | |
| 3109 // Get receiver klass into rdx - also a null check | |
|
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3110 __ restore_locals(); // restore r14 |
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|
3111 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
|
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3112 __ load_klass(rdx, rcx); |
| 0 | 3113 |
| 3114 // profile this call | |
| 3115 __ profile_virtual_call(rdx, r13, r14); | |
| 3116 | |
|
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3117 Label no_such_interface, no_such_method; |
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3118 |
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|
3119 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
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3120 rdx, rax, rbx, |
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3121 // outputs: method, scan temp. reg |
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|
3122 rbx, r13, |
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|
3123 no_such_interface); |
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|
3124 |
|
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3125 // rbx: Method* to call |
|
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3126 // rcx: receiver |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3127 // Check for abstract method error |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3128 // 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
parents:
622
diff
changeset
|
3129 // 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
|
3130 // method. |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3131 __ testptr(rbx, rbx); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3132 __ jcc(Assembler::zero, no_such_method); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3133 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3134 // do the call |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3135 // rcx: receiver |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3136 // rbx,: Method* |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3137 __ jump_from_interpreted(rbx, rdx); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3138 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3139 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3140 // exception handling code follows... |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3141 // note: must restore interpreter registers to canonical |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3142 // state for exception handling to work correctly! |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3143 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3144 __ bind(no_such_method); |
| 0 | 3145 // throw exception |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3146 __ 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
|
3147 __ 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
|
3148 __ 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
|
3149 __ 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
|
3150 // 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
|
3151 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3152 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3153 __ bind(no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3154 // throw exception |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3155 __ 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
|
3156 __ 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
|
3157 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
| 0 | 3158 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
| 3159 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3160 // the call_VM checks for exception, so we should never return here. | |
| 3161 __ should_not_reach_here(); | |
| 3162 } | |
| 3163 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3164 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3165 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
|
3166 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3167 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
|
3168 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
|
3169 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
|
3170 const Register rcx_recv = rcx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3171 const Register rdx_flags = rdx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3172 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3173 if (!EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3174 // 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
|
3175 __ should_not_reach_here(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3176 return; |
|
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 |
|
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
|
3179 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
|
3180 __ 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
|
3181 __ verify_oop(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3182 __ null_check(rcx_recv); |
|
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 // 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
|
3185 // 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
|
3186 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3187 // 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
|
3188 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3189 // FIXME: profile the LambdaForm also |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3190 __ profile_final_call(rax); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3191 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3192 __ 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
|
3193 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3194 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3195 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3196 void TemplateTable::invokedynamic(int byte_no) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3197 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3198 assert(byte_no == f1_byte, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3199 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3200 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3201 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3202 // 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
|
3203 // 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
|
3204 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3205 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3206 // 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
|
3207 __ should_not_reach_here(); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3208 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3209 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3210 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3211 const Register rbx_method = rbx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3212 const Register rax_callsite = rax; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3213 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3214 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
|
3215 |
|
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
|
3216 // rax: CallSite object (from cpool->resolved_references[f1]) |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3217 // rbx: MH.linkToCallSite method (from f2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3218 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3219 // Note: rax_callsite is already pushed by prepare_invoke |
| 1846 | 3220 |
|
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3221 // %%% 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
|
3222 // profile this call |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3223 __ profile_call(r13); |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3224 |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3225 __ verify_oop(rax_callsite); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3226 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3227 __ jump_from_interpreted(rbx_method, rdx); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3228 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3229 |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
diff
changeset
|
3230 |
| 0 | 3231 //----------------------------------------------------------------------------- |
| 3232 // Allocation | |
| 3233 | |
| 3234 void TemplateTable::_new() { | |
| 3235 transition(vtos, atos); | |
| 3236 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3237 Label slow_case; | |
| 3238 Label done; | |
| 3239 Label initialize_header; | |
| 3240 Label initialize_object; // including clearing the fields | |
| 3241 Label allocate_shared; | |
| 3242 | |
| 3243 __ get_cpool_and_tags(rsi, rax); | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3244 // 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
|
3245 // 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
|
3246 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3247 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 3248 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
| 3249 JVM_CONSTANT_Class); | |
| 3250 __ jcc(Assembler::notEqual, slow_case); | |
| 3251 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3252 // get InstanceKlass |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3253 __ 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
|
3254 Address::times_8, sizeof(ConstantPool))); |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3255 |
| 0 | 3256 // make sure klass is initialized & doesn't have finalizer |
| 3257 // make sure klass is fully initialized | |
|
4739
52b5d32fbfaf
7117052: instanceKlass::_init_state can be u1 type
coleenp
parents:
3852
diff
changeset
|
3258 __ cmpb(Address(rsi, |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3259 InstanceKlass::init_state_offset()), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3260 InstanceKlass::fully_initialized); |
| 0 | 3261 __ jcc(Assembler::notEqual, slow_case); |
| 3262 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3263 // get instance_size in InstanceKlass (scaled to a count of bytes) |
| 0 | 3264 __ movl(rdx, |
| 3265 Address(rsi, | |
|
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3852
diff
changeset
|
3266 Klass::layout_helper_offset())); |
| 0 | 3267 // test to see if it has a finalizer or is malformed in some way |
| 3268 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
| 3269 __ jcc(Assembler::notZero, slow_case); | |
| 3270 | |
| 3271 // Allocate the instance | |
| 3272 // 1) Try to allocate in the TLAB | |
| 3273 // 2) if fail and the object is large allocate in the shared Eden | |
| 3274 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3275 // (creates a new TLAB, etc.) | |
| 3276 | |
| 3277 const bool allow_shared_alloc = | |
| 3278 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3279 | |
| 3280 if (UseTLAB) { | |
| 304 | 3281 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
| 3282 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3283 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
| 0 | 3284 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
| 304 | 3285 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
| 0 | 3286 if (ZeroTLAB) { |
| 3287 // the fields have been already cleared | |
| 3288 __ jmp(initialize_header); | |
| 3289 } else { | |
| 3290 // initialize both the header and fields | |
| 3291 __ jmp(initialize_object); | |
| 3292 } | |
| 3293 } | |
| 3294 | |
| 3295 // Allocation in the shared Eden, if allowed. | |
| 3296 // | |
| 3297 // rdx: instance size in bytes | |
| 3298 if (allow_shared_alloc) { | |
| 3299 __ bind(allocate_shared); | |
| 3300 | |
|
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3301 ExternalAddress top((address)Universe::heap()->top_addr()); |
|
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3302 ExternalAddress end((address)Universe::heap()->end_addr()); |
|
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|
3303 |
| 0 | 3304 const Register RtopAddr = rscratch1; |
| 3305 const Register RendAddr = rscratch2; | |
| 3306 | |
| 3307 __ lea(RtopAddr, top); | |
| 3308 __ lea(RendAddr, end); | |
| 304 | 3309 __ movptr(rax, Address(RtopAddr, 0)); |
| 0 | 3310 |
| 3311 // For retries rax gets set by cmpxchgq | |
| 3312 Label retry; | |
| 3313 __ bind(retry); | |
| 304 | 3314 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
| 3315 __ cmpptr(rbx, Address(RendAddr, 0)); | |
| 0 | 3316 __ jcc(Assembler::above, slow_case); |
| 3317 | |
| 3318 // Compare rax with the top addr, and if still equal, store the new | |
| 3319 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
| 3320 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
| 3321 // | |
| 3322 // rax: object begin | |
| 3323 // rbx: object end | |
| 3324 // rdx: instance size in bytes | |
| 3325 if (os::is_MP()) { | |
| 3326 __ lock(); | |
| 3327 } | |
| 304 | 3328 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
| 0 | 3329 |
| 3330 // if someone beat us on the allocation, try again, otherwise continue | |
| 3331 __ jcc(Assembler::notEqual, retry); | |
|
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3332 |
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|
3333 __ incr_allocated_bytes(r15_thread, rdx, 0); |
| 0 | 3334 } |
| 3335 | |
| 3336 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3337 // The object is initialized before the header. If the object size is | |
| 3338 // zero, go directly to the header initialization. | |
| 3339 __ bind(initialize_object); | |
| 3340 __ decrementl(rdx, sizeof(oopDesc)); | |
| 3341 __ jcc(Assembler::zero, initialize_header); | |
| 3342 | |
| 3343 // Initialize object fields | |
| 3344 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
| 3345 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
| 3346 { | |
| 3347 Label loop; | |
| 3348 __ bind(loop); | |
| 3349 __ movq(Address(rax, rdx, Address::times_8, | |
| 3350 sizeof(oopDesc) - oopSize), | |
| 3351 rcx); | |
| 3352 __ decrementl(rdx); | |
| 3353 __ jcc(Assembler::notZero, loop); | |
| 3354 } | |
| 3355 | |
| 3356 // initialize object header only. | |
| 3357 __ bind(initialize_header); | |
| 3358 if (UseBiasedLocking) { | |
|
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|
3359 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
| 304 | 3360 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
| 0 | 3361 } else { |
| 3362 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
| 3363 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
| 3364 } | |
|
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3365 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
|
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3366 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
|
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3367 __ store_klass(rax, rsi); // store klass last |
|
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3368 |
|
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|
3369 { |
|
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|
3370 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
|
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3371 // Trigger dtrace event for fastpath |
|
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3372 __ push(atos); // save the return value |
|
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3373 __ call_VM_leaf( |
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3374 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
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3375 __ pop(atos); // restore the return value |
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3376 |
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|
3377 } |
| 0 | 3378 __ jmp(done); |
| 3379 } | |
| 3380 | |
| 3381 | |
| 3382 // slow case | |
| 3383 __ bind(slow_case); | |
| 3384 __ get_constant_pool(c_rarg1); | |
| 3385 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3386 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
| 3387 __ verify_oop(rax); | |
| 3388 | |
| 3389 // continue | |
| 3390 __ bind(done); | |
| 3391 } | |
| 3392 | |
| 3393 void TemplateTable::newarray() { | |
| 3394 transition(itos, atos); | |
| 3395 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
| 3396 __ movl(c_rarg2, rax); | |
| 3397 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
| 3398 c_rarg1, c_rarg2); | |
| 3399 } | |
| 3400 | |
| 3401 void TemplateTable::anewarray() { | |
| 3402 transition(itos, atos); | |
| 3403 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3404 __ get_constant_pool(c_rarg1); | |
| 3405 __ movl(c_rarg3, rax); | |
| 3406 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
| 3407 c_rarg1, c_rarg2, c_rarg3); | |
| 3408 } | |
| 3409 | |
| 3410 void TemplateTable::arraylength() { | |
| 3411 transition(atos, itos); | |
| 3412 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
| 3413 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
| 3414 } | |
| 3415 | |
| 3416 void TemplateTable::checkcast() { | |
| 3417 transition(atos, atos); | |
| 3418 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3419 __ testptr(rax, rax); // object is in rax |
| 0 | 3420 __ jcc(Assembler::zero, is_null); |
| 3421 | |
| 3422 // Get cpool & tags index | |
| 3423 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3424 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3425 // See if bytecode has already been quicked | |
| 3426 __ cmpb(Address(rdx, rbx, | |
| 3427 Address::times_1, | |
|
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|
3428 Array<u1>::base_offset_in_bytes()), |
| 0 | 3429 JVM_CONSTANT_Class); |
| 3430 __ jcc(Assembler::equal, quicked); | |
|
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|
3431 __ push(atos); // save receiver for result, and for GC |
|
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3432 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
|
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3433 // vm_result_2 has metadata result |
|
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|
3434 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3435 __ pop_ptr(rdx); // restore receiver |
| 3436 __ jmpb(resolved); | |
| 3437 | |
| 3438 // Get superklass in rax and subklass in rbx | |
| 3439 __ bind(quicked); | |
| 304 | 3440 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
| 3441 __ movptr(rax, Address(rcx, rbx, | |
|
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|
3442 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3443 |
| 3444 __ bind(resolved); | |
|
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|
3445 __ load_klass(rbx, rdx); |
| 0 | 3446 |
| 3447 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
| 3448 // Superklass in rax. Subklass in rbx. | |
| 3449 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 3450 | |
| 3451 // Come here on failure | |
| 3452 __ push_ptr(rdx); | |
| 3453 // object is at TOS | |
| 3454 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
| 3455 | |
| 3456 // Come here on success | |
| 3457 __ bind(ok_is_subtype); | |
| 304 | 3458 __ mov(rax, rdx); // Restore object in rdx |
| 0 | 3459 |
| 3460 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
| 3461 if (ProfileInterpreter) { | |
| 3462 __ jmp(done); | |
| 3463 __ bind(is_null); | |
| 3464 __ profile_null_seen(rcx); | |
| 3465 } else { | |
| 3466 __ bind(is_null); // same as 'done' | |
| 3467 } | |
| 3468 __ bind(done); | |
| 3469 } | |
| 3470 | |
| 3471 void TemplateTable::instanceof() { | |
| 3472 transition(atos, itos); | |
| 3473 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3474 __ testptr(rax, rax); |
| 0 | 3475 __ jcc(Assembler::zero, is_null); |
| 3476 | |
| 3477 // Get cpool & tags index | |
| 3478 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3479 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3480 // See if bytecode has already been quicked | |
| 3481 __ cmpb(Address(rdx, rbx, | |
| 3482 Address::times_1, | |
|
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|
3483 Array<u1>::base_offset_in_bytes()), |
| 0 | 3484 JVM_CONSTANT_Class); |
| 3485 __ jcc(Assembler::equal, quicked); | |
| 3486 | |
|
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3487 __ push(atos); // save receiver for result, and for GC |
|
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|
3488 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
|
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|
3489 // vm_result_2 has metadata result |
|
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|
3490 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3491 __ pop_ptr(rdx); // restore receiver |
|
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|
3492 __ verify_oop(rdx); |
|
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|
3493 __ load_klass(rdx, rdx); |
| 0 | 3494 __ jmpb(resolved); |
| 3495 | |
| 3496 // Get superklass in rax and subklass in rdx | |
| 3497 __ bind(quicked); | |
|
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|
3498 __ load_klass(rdx, rax); |
| 304 | 3499 __ movptr(rax, Address(rcx, rbx, |
|
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|
3500 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3501 |
| 3502 __ bind(resolved); | |
| 3503 | |
| 3504 // Generate subtype check. Blows rcx, rdi | |
| 3505 // Superklass in rax. Subklass in rdx. | |
| 3506 __ gen_subtype_check(rdx, ok_is_subtype); | |
| 3507 | |
| 3508 // Come here on failure | |
| 3509 __ xorl(rax, rax); | |
| 3510 __ jmpb(done); | |
| 3511 // Come here on success | |
| 3512 __ bind(ok_is_subtype); | |
| 3513 __ movl(rax, 1); | |
| 3514 | |
| 3515 // Collect counts on whether this test sees NULLs a lot or not. | |
| 3516 if (ProfileInterpreter) { | |
| 3517 __ jmp(done); | |
| 3518 __ bind(is_null); | |
| 3519 __ profile_null_seen(rcx); | |
| 3520 } else { | |
| 3521 __ bind(is_null); // same as 'done' | |
| 3522 } | |
| 3523 __ bind(done); | |
| 3524 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
| 3525 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
| 3526 } | |
| 3527 | |
| 3528 //----------------------------------------------------------------------------- | |
| 3529 // Breakpoints | |
| 3530 void TemplateTable::_breakpoint() { | |
| 3531 // Note: We get here even if we are single stepping.. | |
| 3532 // jbug inists on setting breakpoints at every bytecode | |
| 3533 // even if we are in single step mode. | |
| 3534 | |
| 3535 transition(vtos, vtos); | |
| 3536 | |
| 3537 // get the unpatched byte code | |
| 3538 __ get_method(c_rarg1); | |
| 3539 __ call_VM(noreg, | |
| 3540 CAST_FROM_FN_PTR(address, | |
| 3541 InterpreterRuntime::get_original_bytecode_at), | |
| 3542 c_rarg1, r13); | |
| 304 | 3543 __ mov(rbx, rax); |
| 0 | 3544 |
| 3545 // post the breakpoint event | |
| 3546 __ get_method(c_rarg1); | |
| 3547 __ call_VM(noreg, | |
| 3548 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
| 3549 c_rarg1, r13); | |
| 3550 | |
| 3551 // complete the execution of original bytecode | |
| 3552 __ dispatch_only_normal(vtos); | |
| 3553 } | |
| 3554 | |
| 3555 //----------------------------------------------------------------------------- | |
| 3556 // Exceptions | |
| 3557 | |
| 3558 void TemplateTable::athrow() { | |
| 3559 transition(atos, vtos); | |
| 3560 __ null_check(rax); | |
| 3561 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 3562 } | |
| 3563 | |
| 3564 //----------------------------------------------------------------------------- | |
| 3565 // Synchronization | |
| 3566 // | |
| 3567 // Note: monitorenter & exit are symmetric routines; which is reflected | |
| 3568 // in the assembly code structure as well | |
| 3569 // | |
| 3570 // Stack layout: | |
| 3571 // | |
| 3572 // [expressions ] <--- rsp = expression stack top | |
| 3573 // .. | |
| 3574 // [expressions ] | |
| 3575 // [monitor entry] <--- monitor block top = expression stack bot | |
| 3576 // .. | |
| 3577 // [monitor entry] | |
| 3578 // [frame data ] <--- monitor block bot | |
| 3579 // ... | |
| 3580 // [saved rbp ] <--- rbp | |
| 3581 void TemplateTable::monitorenter() { | |
| 3582 transition(atos, vtos); | |
| 3583 | |
| 3584 // check for NULL object | |
| 3585 __ null_check(rax); | |
| 3586 | |
| 3587 const Address monitor_block_top( | |
| 3588 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3589 const Address monitor_block_bot( | |
| 3590 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3591 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3592 | |
| 3593 Label allocated; | |
| 3594 | |
| 3595 // initialize entry pointer | |
| 3596 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
| 3597 | |
| 3598 // find a free slot in the monitor block (result in c_rarg1) | |
| 3599 { | |
| 3600 Label entry, loop, exit; | |
| 304 | 3601 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
| 0 | 3602 // starting with top-most entry |
| 304 | 3603 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3604 // of monitor block |
| 3605 __ jmpb(entry); | |
| 3606 | |
| 3607 __ bind(loop); | |
| 3608 // check if current entry is used | |
| 304 | 3609 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
| 0 | 3610 // if not used then remember entry in c_rarg1 |
| 304 | 3611 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
| 0 | 3612 // check if current entry is for same object |
| 304 | 3613 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3614 // if same object then stop searching |
| 3615 __ jccb(Assembler::equal, exit); | |
| 3616 // otherwise advance to next entry | |
| 304 | 3617 __ addptr(c_rarg3, entry_size); |
| 0 | 3618 __ bind(entry); |
| 3619 // check if bottom reached | |
| 304 | 3620 __ cmpptr(c_rarg3, c_rarg2); |
| 0 | 3621 // if not at bottom then check this entry |
| 3622 __ jcc(Assembler::notEqual, loop); | |
| 3623 __ bind(exit); | |
| 3624 } | |
| 3625 | |
| 304 | 3626 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
| 0 | 3627 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
| 3628 | |
| 3629 // allocate one if there's no free slot | |
| 3630 { | |
| 3631 Label entry, loop; | |
| 304 | 3632 // 1. compute new pointers // rsp: old expression stack top |
| 3633 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
| 3634 __ subptr(rsp, entry_size); // move expression stack top | |
| 3635 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
| 3636 __ mov(c_rarg3, rsp); // set start value for copy loop | |
| 3637 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
| 0 | 3638 __ jmp(entry); |
| 3639 // 2. move expression stack contents | |
| 3640 __ bind(loop); | |
| 304 | 3641 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
| 3642 // word from old location | |
| 3643 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
| 3644 __ addptr(c_rarg3, wordSize); // advance to next word | |
| 0 | 3645 __ bind(entry); |
| 304 | 3646 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
| 0 | 3647 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
| 3648 // copy next word | |
| 3649 } | |
| 3650 | |
| 3651 // call run-time routine | |
| 3652 // c_rarg1: points to monitor entry | |
| 3653 __ bind(allocated); | |
| 3654 | |
| 3655 // Increment bcp to point to the next bytecode, so exception | |
| 3656 // handling for async. exceptions work correctly. | |
| 3657 // The object has already been poped from the stack, so the | |
| 3658 // expression stack looks correct. | |
| 304 | 3659 __ increment(r13); |
| 0 | 3660 |
| 3661 // store object | |
| 304 | 3662 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 0 | 3663 __ lock_object(c_rarg1); |
| 3664 | |
| 3665 // check to make sure this monitor doesn't cause stack overflow after locking | |
| 3666 __ save_bcp(); // in case of exception | |
| 3667 __ generate_stack_overflow_check(0); | |
| 3668 | |
| 3669 // The bcp has already been incremented. Just need to dispatch to | |
| 3670 // next instruction. | |
| 3671 __ dispatch_next(vtos); | |
| 3672 } | |
| 3673 | |
| 3674 | |
| 3675 void TemplateTable::monitorexit() { | |
| 3676 transition(atos, vtos); | |
| 3677 | |
| 3678 // check for NULL object | |
| 3679 __ null_check(rax); | |
| 3680 | |
| 3681 const Address monitor_block_top( | |
| 3682 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3683 const Address monitor_block_bot( | |
| 3684 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3685 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3686 | |
| 3687 Label found; | |
| 3688 | |
| 3689 // find matching slot | |
| 3690 { | |
| 3691 Label entry, loop; | |
| 304 | 3692 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
| 0 | 3693 // starting with top-most entry |
| 304 | 3694 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3695 // of monitor block |
| 3696 __ jmpb(entry); | |
| 3697 | |
| 3698 __ bind(loop); | |
| 3699 // check if current entry is for same object | |
| 304 | 3700 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3701 // if same object then stop searching |
| 3702 __ jcc(Assembler::equal, found); | |
| 3703 // otherwise advance to next entry | |
| 304 | 3704 __ addptr(c_rarg1, entry_size); |
| 0 | 3705 __ bind(entry); |
| 3706 // check if bottom reached | |
| 304 | 3707 __ cmpptr(c_rarg1, c_rarg2); |
| 0 | 3708 // if not at bottom then check this entry |
| 3709 __ jcc(Assembler::notEqual, loop); | |
| 3710 } | |
| 3711 | |
| 3712 // error handling. Unlocking was not block-structured | |
| 3713 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 3714 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3715 __ should_not_reach_here(); | |
| 3716 | |
| 3717 // call run-time routine | |
| 3718 // rsi: points to monitor entry | |
| 3719 __ bind(found); | |
| 3720 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
| 3721 __ unlock_object(c_rarg1); | |
| 3722 __ pop_ptr(rax); // discard object | |
| 3723 } | |
| 3724 | |
| 3725 | |
| 3726 // Wide instructions | |
| 3727 void TemplateTable::wide() { | |
| 3728 transition(vtos, vtos); | |
| 3729 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 3730 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
| 3731 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
| 3732 // Note: the r13 increment step is part of the individual wide | |
| 3733 // bytecode implementations | |
| 3734 } | |
| 3735 | |
| 3736 | |
| 3737 // Multi arrays | |
| 3738 void TemplateTable::multianewarray() { | |
| 3739 transition(vtos, atos); | |
| 3740 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
| 3741 // last dim is on top of stack; we want address of first one: | |
| 3742 // first_addr = last_addr + (ndims - 1) * wordSize | |
| 304 | 3743 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
| 0 | 3744 call_VM(rax, |
| 3745 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
| 3746 c_rarg1); | |
| 3747 __ load_unsigned_byte(rbx, at_bcp(3)); | |
| 304 | 3748 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 3749 } |
| 304 | 3750 #endif // !CC_INTERP |