Mercurial > hg > graal-jvmci-8
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 23614:32b682649973 jdk8u75-b04
8132051: Better byte behavior
Reviewed-by: coleenp, roland
| author | kevinw |
|---|---|
| date | Fri, 15 Jan 2016 22:33:15 +0000 |
| parents | 42790b7e4d48 |
| children | b5f3a471e646 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 23614 | 2 * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
| 1972 | 27 #include "interpreter/interpreter.hpp" |
| 28 #include "interpreter/interpreterRuntime.hpp" | |
| 29 #include "interpreter/templateTable.hpp" | |
| 30 #include "memory/universe.inline.hpp" | |
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31 #include "oops/methodData.hpp" |
| 1972 | 32 #include "oops/objArrayKlass.hpp" |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "prims/methodHandles.hpp" | |
| 35 #include "runtime/sharedRuntime.hpp" | |
| 36 #include "runtime/stubRoutines.hpp" | |
| 37 #include "runtime/synchronizer.hpp" | |
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38 #include "utilities/macros.hpp" |
| 0 | 39 |
| 304 | 40 #ifndef CC_INTERP |
| 41 | |
| 0 | 42 #define __ _masm-> |
| 43 | |
| 44 // Platform-dependent initialization | |
| 45 | |
| 46 void TemplateTable::pd_initialize() { | |
| 47 // No amd64 specific initialization | |
| 48 } | |
| 49 | |
| 50 // Address computation: local variables | |
| 51 | |
| 52 static inline Address iaddress(int n) { | |
| 53 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
| 54 } | |
| 55 | |
| 56 static inline Address laddress(int n) { | |
| 57 return iaddress(n + 1); | |
| 58 } | |
| 59 | |
| 60 static inline Address faddress(int n) { | |
| 61 return iaddress(n); | |
| 62 } | |
| 63 | |
| 64 static inline Address daddress(int n) { | |
| 65 return laddress(n); | |
| 66 } | |
| 67 | |
| 68 static inline Address aaddress(int n) { | |
| 69 return iaddress(n); | |
| 70 } | |
| 71 | |
| 72 static inline Address iaddress(Register r) { | |
| 1506 | 73 return Address(r14, r, Address::times_8); |
| 0 | 74 } |
| 75 | |
| 76 static inline Address laddress(Register r) { | |
| 77 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
| 78 } | |
| 79 | |
| 80 static inline Address faddress(Register r) { | |
| 81 return iaddress(r); | |
| 82 } | |
| 83 | |
| 84 static inline Address daddress(Register r) { | |
| 85 return laddress(r); | |
| 86 } | |
| 87 | |
| 88 static inline Address aaddress(Register r) { | |
| 89 return iaddress(r); | |
| 90 } | |
| 91 | |
| 92 static inline Address at_rsp() { | |
| 93 return Address(rsp, 0); | |
| 94 } | |
| 95 | |
| 96 // At top of Java expression stack which may be different than esp(). It | |
| 97 // isn't for category 1 objects. | |
| 98 static inline Address at_tos () { | |
| 99 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
| 100 } | |
| 101 | |
| 102 static inline Address at_tos_p1() { | |
| 103 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
| 104 } | |
| 105 | |
| 106 static inline Address at_tos_p2() { | |
| 107 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
| 108 } | |
| 109 | |
| 110 static inline Address at_tos_p3() { | |
| 111 return Address(rsp, Interpreter::expr_offset_in_bytes(3)); | |
| 112 } | |
| 113 | |
| 114 // Condition conversion | |
| 115 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
| 116 switch (cc) { | |
| 117 case TemplateTable::equal : return Assembler::notEqual; | |
| 118 case TemplateTable::not_equal : return Assembler::equal; | |
| 119 case TemplateTable::less : return Assembler::greaterEqual; | |
| 120 case TemplateTable::less_equal : return Assembler::greater; | |
| 121 case TemplateTable::greater : return Assembler::lessEqual; | |
| 122 case TemplateTable::greater_equal: return Assembler::less; | |
| 123 } | |
| 124 ShouldNotReachHere(); | |
| 125 return Assembler::zero; | |
| 126 } | |
| 127 | |
| 128 | |
| 129 // Miscelaneous helper routines | |
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130 // Store an oop (or NULL) at the address described by obj. |
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131 // If val == noreg this means store a NULL |
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132 |
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133 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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134 Address obj, |
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135 Register val, |
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136 BarrierSet::Name barrier, |
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137 bool precise) { |
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138 assert(val == noreg || val == rax, "parameter is just for looks"); |
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139 switch (barrier) { |
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140 #if INCLUDE_ALL_GCS |
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141 case BarrierSet::G1SATBCT: |
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142 case BarrierSet::G1SATBCTLogging: |
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143 { |
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144 // flatten object address if needed |
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145 if (obj.index() == noreg && obj.disp() == 0) { |
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146 if (obj.base() != rdx) { |
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147 __ movq(rdx, obj.base()); |
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148 } |
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149 } else { |
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150 __ leaq(rdx, obj); |
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151 } |
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152 __ g1_write_barrier_pre(rdx /* obj */, |
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153 rbx /* pre_val */, |
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154 r15_thread /* thread */, |
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155 r8 /* tmp */, |
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156 val != noreg /* tosca_live */, |
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157 false /* expand_call */); |
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158 if (val == noreg) { |
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159 __ store_heap_oop_null(Address(rdx, 0)); |
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160 } else { |
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161 // G1 barrier needs uncompressed oop for region cross check. |
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162 Register new_val = val; |
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163 if (UseCompressedOops) { |
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164 new_val = rbx; |
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165 __ movptr(new_val, val); |
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166 } |
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167 __ store_heap_oop(Address(rdx, 0), val); |
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168 __ g1_write_barrier_post(rdx /* store_adr */, |
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169 new_val /* new_val */, |
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170 r15_thread /* thread */, |
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171 r8 /* tmp */, |
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172 rbx /* tmp2 */); |
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173 } |
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174 } |
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175 break; |
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176 #endif // INCLUDE_ALL_GCS |
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177 case BarrierSet::CardTableModRef: |
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178 case BarrierSet::CardTableExtension: |
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179 { |
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180 if (val == noreg) { |
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181 __ store_heap_oop_null(obj); |
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182 } else { |
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183 __ store_heap_oop(obj, val); |
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184 // flatten object address if needed |
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185 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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186 __ store_check(obj.base()); |
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187 } else { |
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188 __ leaq(rdx, obj); |
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189 __ store_check(rdx); |
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190 } |
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191 } |
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192 } |
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193 break; |
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194 case BarrierSet::ModRef: |
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195 case BarrierSet::Other: |
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196 if (val == noreg) { |
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197 __ store_heap_oop_null(obj); |
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198 } else { |
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199 __ store_heap_oop(obj, val); |
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200 } |
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201 break; |
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202 default : |
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203 ShouldNotReachHere(); |
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204 |
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205 } |
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206 } |
| 0 | 207 |
| 208 Address TemplateTable::at_bcp(int offset) { | |
| 209 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 210 return Address(r13, offset); | |
| 211 } | |
| 212 | |
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213 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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214 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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215 int byte_no) { |
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216 if (!RewriteBytecodes) return; |
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217 Label L_patch_done; |
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218 |
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219 switch (bc) { |
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220 case Bytecodes::_fast_aputfield: |
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221 case Bytecodes::_fast_bputfield: |
| 23614 | 222 case Bytecodes::_fast_zputfield: |
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223 case Bytecodes::_fast_cputfield: |
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224 case Bytecodes::_fast_dputfield: |
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225 case Bytecodes::_fast_fputfield: |
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226 case Bytecodes::_fast_iputfield: |
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227 case Bytecodes::_fast_lputfield: |
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228 case Bytecodes::_fast_sputfield: |
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229 { |
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230 // We skip bytecode quickening for putfield instructions when |
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231 // the put_code written to the constant pool cache is zero. |
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232 // This is required so that every execution of this instruction |
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233 // calls out to InterpreterRuntime::resolve_get_put to do |
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234 // additional, required work. |
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235 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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236 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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237 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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238 __ movl(bc_reg, bc); |
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239 __ cmpl(temp_reg, (int) 0); |
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240 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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241 } |
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242 break; |
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243 default: |
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244 assert(byte_no == -1, "sanity"); |
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245 // the pair bytecodes have already done the load. |
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246 if (load_bc_into_bc_reg) { |
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247 __ movl(bc_reg, bc); |
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248 } |
| 0 | 249 } |
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250 |
| 0 | 251 if (JvmtiExport::can_post_breakpoint()) { |
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252 Label L_fast_patch; |
| 0 | 253 // if a breakpoint is present we can't rewrite the stream directly |
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254 __ movzbl(temp_reg, at_bcp(0)); |
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255 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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256 __ jcc(Assembler::notEqual, L_fast_patch); |
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257 __ get_method(temp_reg); |
| 0 | 258 // Let breakpoint table handling rewrite to quicker bytecode |
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259 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
| 0 | 260 #ifndef ASSERT |
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261 __ jmpb(L_patch_done); |
| 1108 | 262 #else |
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263 __ jmp(L_patch_done); |
| 1108 | 264 #endif |
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265 __ bind(L_fast_patch); |
| 0 | 266 } |
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267 |
| 1108 | 268 #ifdef ASSERT |
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269 Label L_okay; |
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270 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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271 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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272 __ jcc(Assembler::equal, L_okay); |
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273 __ cmpl(temp_reg, bc_reg); |
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274 __ jcc(Assembler::equal, L_okay); |
| 0 | 275 __ stop("patching the wrong bytecode"); |
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276 __ bind(L_okay); |
| 0 | 277 #endif |
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278 |
| 0 | 279 // patch bytecode |
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280 __ movb(at_bcp(0), bc_reg); |
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281 __ bind(L_patch_done); |
| 0 | 282 } |
| 283 | |
| 284 | |
| 285 // Individual instructions | |
| 286 | |
| 287 void TemplateTable::nop() { | |
| 288 transition(vtos, vtos); | |
| 289 // nothing to do | |
| 290 } | |
| 291 | |
| 292 void TemplateTable::shouldnotreachhere() { | |
| 293 transition(vtos, vtos); | |
| 294 __ stop("shouldnotreachhere bytecode"); | |
| 295 } | |
| 296 | |
| 297 void TemplateTable::aconst_null() { | |
| 298 transition(vtos, atos); | |
| 299 __ xorl(rax, rax); | |
| 300 } | |
| 301 | |
| 302 void TemplateTable::iconst(int value) { | |
| 303 transition(vtos, itos); | |
| 304 if (value == 0) { | |
| 305 __ xorl(rax, rax); | |
| 306 } else { | |
| 307 __ movl(rax, value); | |
| 308 } | |
| 309 } | |
| 310 | |
| 311 void TemplateTable::lconst(int value) { | |
| 312 transition(vtos, ltos); | |
| 313 if (value == 0) { | |
| 314 __ xorl(rax, rax); | |
| 315 } else { | |
| 316 __ movl(rax, value); | |
| 317 } | |
| 318 } | |
| 319 | |
| 320 void TemplateTable::fconst(int value) { | |
| 321 transition(vtos, ftos); | |
| 322 static float one = 1.0f, two = 2.0f; | |
| 323 switch (value) { | |
| 324 case 0: | |
| 325 __ xorps(xmm0, xmm0); | |
| 326 break; | |
| 327 case 1: | |
| 328 __ movflt(xmm0, ExternalAddress((address) &one)); | |
| 329 break; | |
| 330 case 2: | |
| 331 __ movflt(xmm0, ExternalAddress((address) &two)); | |
| 332 break; | |
| 333 default: | |
| 334 ShouldNotReachHere(); | |
| 335 break; | |
| 336 } | |
| 337 } | |
| 338 | |
| 339 void TemplateTable::dconst(int value) { | |
| 340 transition(vtos, dtos); | |
| 341 static double one = 1.0; | |
| 342 switch (value) { | |
| 343 case 0: | |
| 344 __ xorpd(xmm0, xmm0); | |
| 345 break; | |
| 346 case 1: | |
| 347 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
| 348 break; | |
| 349 default: | |
| 350 ShouldNotReachHere(); | |
| 351 break; | |
| 352 } | |
| 353 } | |
| 354 | |
| 355 void TemplateTable::bipush() { | |
| 356 transition(vtos, itos); | |
| 357 __ load_signed_byte(rax, at_bcp(1)); | |
| 358 } | |
| 359 | |
| 360 void TemplateTable::sipush() { | |
| 361 transition(vtos, itos); | |
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362 __ load_unsigned_short(rax, at_bcp(1)); |
| 0 | 363 __ bswapl(rax); |
| 364 __ sarl(rax, 16); | |
| 365 } | |
| 366 | |
| 367 void TemplateTable::ldc(bool wide) { | |
| 368 transition(vtos, vtos); | |
| 369 Label call_ldc, notFloat, notClass, Done; | |
| 370 | |
| 371 if (wide) { | |
| 372 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 373 } else { | |
| 374 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 375 } | |
| 376 | |
| 377 __ get_cpool_and_tags(rcx, rax); | |
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378 const int base_offset = ConstantPool::header_size() * wordSize; |
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379 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 380 |
| 381 // get type | |
| 382 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
| 383 | |
| 384 // unresolved class - get the resolved class | |
| 385 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
| 386 __ jccb(Assembler::equal, call_ldc); | |
| 387 | |
| 388 // unresolved class in error state - call into runtime to throw the error | |
| 389 // from the first resolution attempt | |
| 390 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
| 391 __ jccb(Assembler::equal, call_ldc); | |
| 392 | |
| 393 // resolved class - need to call vm to get java mirror of the class | |
| 394 __ cmpl(rdx, JVM_CONSTANT_Class); | |
| 395 __ jcc(Assembler::notEqual, notClass); | |
| 396 | |
| 397 __ bind(call_ldc); | |
| 398 __ movl(c_rarg1, wide); | |
| 399 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
| 400 __ push_ptr(rax); | |
| 401 __ verify_oop(rax); | |
| 402 __ jmp(Done); | |
| 403 | |
| 404 __ bind(notClass); | |
| 405 __ cmpl(rdx, JVM_CONSTANT_Float); | |
| 406 __ jccb(Assembler::notEqual, notFloat); | |
| 407 // ftos | |
| 408 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 409 __ push_f(); | |
| 410 __ jmp(Done); | |
| 411 | |
| 412 __ bind(notFloat); | |
| 413 #ifdef ASSERT | |
| 414 { | |
| 415 Label L; | |
| 416 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
| 417 __ jcc(Assembler::equal, L); | |
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418 // String and Object are rewritten to fast_aldc |
| 0 | 419 __ stop("unexpected tag type in ldc"); |
| 420 __ bind(L); | |
| 421 } | |
| 422 #endif | |
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423 // itos JVM_CONSTANT_Integer only |
| 0 | 424 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
| 425 __ push_i(rax); | |
| 426 __ bind(Done); | |
| 427 } | |
| 428 | |
| 1602 | 429 // Fast path for caching oop constants. |
| 430 void TemplateTable::fast_aldc(bool wide) { | |
| 431 transition(vtos, atos); | |
| 432 | |
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433 Register result = rax; |
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434 Register tmp = rdx; |
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435 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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436 |
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437 Label resolved; |
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438 |
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439 // We are resolved if the resolved reference cache entry contains a |
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440 // non-null object (String, MethodType, etc.) |
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441 assert_different_registers(result, tmp); |
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442 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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443 __ load_resolved_reference_at_index(result, tmp); |
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444 __ testl(result, result); |
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445 __ jcc(Assembler::notZero, resolved); |
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446 |
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447 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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448 |
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449 // first time invocation - must resolve first |
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450 __ movl(tmp, (int)bytecode()); |
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451 __ call_VM(result, entry, tmp); |
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452 |
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453 __ bind(resolved); |
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454 |
| 1602 | 455 if (VerifyOops) { |
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456 __ verify_oop(result); |
| 1602 | 457 } |
| 458 } | |
| 459 | |
| 0 | 460 void TemplateTable::ldc2_w() { |
| 461 transition(vtos, vtos); | |
| 462 Label Long, Done; | |
| 463 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 464 | |
| 465 __ get_cpool_and_tags(rcx, rax); | |
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466 const int base_offset = ConstantPool::header_size() * wordSize; |
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467 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 468 |
| 469 // get type | |
| 470 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
| 471 JVM_CONSTANT_Double); | |
| 472 __ jccb(Assembler::notEqual, Long); | |
| 473 // dtos | |
| 474 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 475 __ push_d(); | |
| 476 __ jmpb(Done); | |
| 477 | |
| 478 __ bind(Long); | |
| 479 // ltos | |
| 480 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 481 __ push_l(); | |
| 482 | |
| 483 __ bind(Done); | |
| 484 } | |
| 485 | |
| 486 void TemplateTable::locals_index(Register reg, int offset) { | |
| 487 __ load_unsigned_byte(reg, at_bcp(offset)); | |
| 304 | 488 __ negptr(reg); |
| 0 | 489 } |
| 490 | |
| 491 void TemplateTable::iload() { | |
| 492 transition(vtos, itos); | |
| 493 if (RewriteFrequentPairs) { | |
| 494 Label rewrite, done; | |
| 495 const Register bc = c_rarg3; | |
| 496 assert(rbx != bc, "register damaged"); | |
| 497 | |
| 498 // get next byte | |
| 499 __ load_unsigned_byte(rbx, | |
| 500 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
| 501 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 502 // last two iloads in a pair. Comparing against fast_iload means that | |
| 503 // the next bytecode is neither an iload or a caload, and therefore | |
| 504 // an iload pair. | |
| 505 __ cmpl(rbx, Bytecodes::_iload); | |
| 506 __ jcc(Assembler::equal, done); | |
| 507 | |
| 508 __ cmpl(rbx, Bytecodes::_fast_iload); | |
| 509 __ movl(bc, Bytecodes::_fast_iload2); | |
| 510 __ jccb(Assembler::equal, rewrite); | |
| 511 | |
| 512 // if _caload, rewrite to fast_icaload | |
| 513 __ cmpl(rbx, Bytecodes::_caload); | |
| 514 __ movl(bc, Bytecodes::_fast_icaload); | |
| 515 __ jccb(Assembler::equal, rewrite); | |
| 516 | |
| 517 // rewrite so iload doesn't check again. | |
| 518 __ movl(bc, Bytecodes::_fast_iload); | |
| 519 | |
| 520 // rewrite | |
| 521 // bc: fast bytecode | |
| 522 __ bind(rewrite); | |
| 523 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
| 524 __ bind(done); | |
| 525 } | |
| 526 | |
| 527 // Get the local value into tos | |
| 528 locals_index(rbx); | |
| 529 __ movl(rax, iaddress(rbx)); | |
| 530 } | |
| 531 | |
| 532 void TemplateTable::fast_iload2() { | |
| 533 transition(vtos, itos); | |
| 534 locals_index(rbx); | |
| 535 __ movl(rax, iaddress(rbx)); | |
| 536 __ push(itos); | |
| 537 locals_index(rbx, 3); | |
| 538 __ movl(rax, iaddress(rbx)); | |
| 539 } | |
| 540 | |
| 541 void TemplateTable::fast_iload() { | |
| 542 transition(vtos, itos); | |
| 543 locals_index(rbx); | |
| 544 __ movl(rax, iaddress(rbx)); | |
| 545 } | |
| 546 | |
| 547 void TemplateTable::lload() { | |
| 548 transition(vtos, ltos); | |
| 549 locals_index(rbx); | |
| 550 __ movq(rax, laddress(rbx)); | |
| 551 } | |
| 552 | |
| 553 void TemplateTable::fload() { | |
| 554 transition(vtos, ftos); | |
| 555 locals_index(rbx); | |
| 556 __ movflt(xmm0, faddress(rbx)); | |
| 557 } | |
| 558 | |
| 559 void TemplateTable::dload() { | |
| 560 transition(vtos, dtos); | |
| 561 locals_index(rbx); | |
| 562 __ movdbl(xmm0, daddress(rbx)); | |
| 563 } | |
| 564 | |
| 565 void TemplateTable::aload() { | |
| 566 transition(vtos, atos); | |
| 567 locals_index(rbx); | |
| 304 | 568 __ movptr(rax, aaddress(rbx)); |
| 0 | 569 } |
| 570 | |
| 571 void TemplateTable::locals_index_wide(Register reg) { | |
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572 __ load_unsigned_short(reg, at_bcp(2)); |
| 0 | 573 __ bswapl(reg); |
| 574 __ shrl(reg, 16); | |
| 304 | 575 __ negptr(reg); |
| 0 | 576 } |
| 577 | |
| 578 void TemplateTable::wide_iload() { | |
| 579 transition(vtos, itos); | |
| 580 locals_index_wide(rbx); | |
| 581 __ movl(rax, iaddress(rbx)); | |
| 582 } | |
| 583 | |
| 584 void TemplateTable::wide_lload() { | |
| 585 transition(vtos, ltos); | |
| 586 locals_index_wide(rbx); | |
| 587 __ movq(rax, laddress(rbx)); | |
| 588 } | |
| 589 | |
| 590 void TemplateTable::wide_fload() { | |
| 591 transition(vtos, ftos); | |
| 592 locals_index_wide(rbx); | |
| 593 __ movflt(xmm0, faddress(rbx)); | |
| 594 } | |
| 595 | |
| 596 void TemplateTable::wide_dload() { | |
| 597 transition(vtos, dtos); | |
| 598 locals_index_wide(rbx); | |
| 599 __ movdbl(xmm0, daddress(rbx)); | |
| 600 } | |
| 601 | |
| 602 void TemplateTable::wide_aload() { | |
| 603 transition(vtos, atos); | |
| 604 locals_index_wide(rbx); | |
| 304 | 605 __ movptr(rax, aaddress(rbx)); |
| 0 | 606 } |
| 607 | |
| 608 void TemplateTable::index_check(Register array, Register index) { | |
| 609 // destroys rbx | |
| 610 // check array | |
| 611 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
| 612 // sign extend index for use by indexed load | |
| 304 | 613 __ movl2ptr(index, index); |
| 0 | 614 // check index |
| 615 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
| 616 if (index != rbx) { | |
| 617 // ??? convention: move aberrant index into ebx for exception message | |
| 618 assert(rbx != array, "different registers"); | |
| 619 __ movl(rbx, index); | |
| 620 } | |
| 621 __ jump_cc(Assembler::aboveEqual, | |
| 622 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
| 623 } | |
| 624 | |
| 625 void TemplateTable::iaload() { | |
| 626 transition(itos, itos); | |
| 627 __ pop_ptr(rdx); | |
| 628 // eax: index | |
| 629 // rdx: array | |
| 630 index_check(rdx, rax); // kills rbx | |
| 631 __ movl(rax, Address(rdx, rax, | |
| 632 Address::times_4, | |
| 633 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 634 } | |
| 635 | |
| 636 void TemplateTable::laload() { | |
| 637 transition(itos, ltos); | |
| 638 __ pop_ptr(rdx); | |
| 639 // eax: index | |
| 640 // rdx: array | |
| 641 index_check(rdx, rax); // kills rbx | |
| 642 __ movq(rax, Address(rdx, rbx, | |
| 643 Address::times_8, | |
| 644 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
| 645 } | |
| 646 | |
| 647 void TemplateTable::faload() { | |
| 648 transition(itos, ftos); | |
| 649 __ pop_ptr(rdx); | |
| 650 // eax: index | |
| 651 // rdx: array | |
| 652 index_check(rdx, rax); // kills rbx | |
| 653 __ movflt(xmm0, Address(rdx, rax, | |
| 654 Address::times_4, | |
| 655 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 656 } | |
| 657 | |
| 658 void TemplateTable::daload() { | |
| 659 transition(itos, dtos); | |
| 660 __ pop_ptr(rdx); | |
| 661 // eax: index | |
| 662 // rdx: array | |
| 663 index_check(rdx, rax); // kills rbx | |
| 664 __ movdbl(xmm0, Address(rdx, rax, | |
| 665 Address::times_8, | |
| 666 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 667 } | |
| 668 | |
| 669 void TemplateTable::aaload() { | |
| 670 transition(itos, atos); | |
| 671 __ pop_ptr(rdx); | |
| 672 // eax: index | |
| 673 // rdx: array | |
| 674 index_check(rdx, rax); // kills rbx | |
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675 __ load_heap_oop(rax, Address(rdx, rax, |
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676 UseCompressedOops ? Address::times_4 : Address::times_8, |
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677 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 0 | 678 } |
| 679 | |
| 680 void TemplateTable::baload() { | |
| 681 transition(itos, itos); | |
| 682 __ pop_ptr(rdx); | |
| 683 // eax: index | |
| 684 // rdx: array | |
| 685 index_check(rdx, rax); // kills rbx | |
| 686 __ load_signed_byte(rax, | |
| 687 Address(rdx, rax, | |
| 688 Address::times_1, | |
| 689 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
| 690 } | |
| 691 | |
| 692 void TemplateTable::caload() { | |
| 693 transition(itos, itos); | |
| 694 __ pop_ptr(rdx); | |
| 695 // eax: index | |
| 696 // rdx: array | |
| 697 index_check(rdx, rax); // kills rbx | |
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698 __ load_unsigned_short(rax, |
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699 Address(rdx, rax, |
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700 Address::times_2, |
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701 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 702 } |
| 703 | |
| 704 // iload followed by caload frequent pair | |
| 705 void TemplateTable::fast_icaload() { | |
| 706 transition(vtos, itos); | |
| 707 // load index out of locals | |
| 708 locals_index(rbx); | |
| 709 __ movl(rax, iaddress(rbx)); | |
| 710 | |
| 711 // eax: index | |
| 712 // rdx: array | |
| 713 __ pop_ptr(rdx); | |
| 714 index_check(rdx, rax); // kills rbx | |
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715 __ load_unsigned_short(rax, |
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716 Address(rdx, rax, |
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717 Address::times_2, |
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718 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 719 } |
| 720 | |
| 721 void TemplateTable::saload() { | |
| 722 transition(itos, itos); | |
| 723 __ pop_ptr(rdx); | |
| 724 // eax: index | |
| 725 // rdx: array | |
| 726 index_check(rdx, rax); // kills rbx | |
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727 __ load_signed_short(rax, |
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728 Address(rdx, rax, |
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729 Address::times_2, |
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730 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
| 0 | 731 } |
| 732 | |
| 733 void TemplateTable::iload(int n) { | |
| 734 transition(vtos, itos); | |
| 735 __ movl(rax, iaddress(n)); | |
| 736 } | |
| 737 | |
| 738 void TemplateTable::lload(int n) { | |
| 739 transition(vtos, ltos); | |
| 740 __ movq(rax, laddress(n)); | |
| 741 } | |
| 742 | |
| 743 void TemplateTable::fload(int n) { | |
| 744 transition(vtos, ftos); | |
| 745 __ movflt(xmm0, faddress(n)); | |
| 746 } | |
| 747 | |
| 748 void TemplateTable::dload(int n) { | |
| 749 transition(vtos, dtos); | |
| 750 __ movdbl(xmm0, daddress(n)); | |
| 751 } | |
| 752 | |
| 753 void TemplateTable::aload(int n) { | |
| 754 transition(vtos, atos); | |
| 304 | 755 __ movptr(rax, aaddress(n)); |
| 0 | 756 } |
| 757 | |
| 758 void TemplateTable::aload_0() { | |
| 759 transition(vtos, atos); | |
| 760 // According to bytecode histograms, the pairs: | |
| 761 // | |
| 762 // _aload_0, _fast_igetfield | |
| 763 // _aload_0, _fast_agetfield | |
| 764 // _aload_0, _fast_fgetfield | |
| 765 // | |
| 766 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
| 767 // _aload_0 bytecode checks if the next bytecode is either | |
| 768 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
| 769 // rewrites the current bytecode into a pair bytecode; otherwise it | |
| 770 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
| 771 // the pair check anymore. | |
| 772 // | |
| 773 // Note: If the next bytecode is _getfield, the rewrite must be | |
| 774 // delayed, otherwise we may miss an opportunity for a pair. | |
| 775 // | |
| 776 // Also rewrite frequent pairs | |
| 777 // aload_0, aload_1 | |
| 778 // aload_0, iload_1 | |
| 779 // These bytecodes with a small amount of code are most profitable | |
| 780 // to rewrite | |
| 781 if (RewriteFrequentPairs) { | |
| 782 Label rewrite, done; | |
| 783 const Register bc = c_rarg3; | |
| 784 assert(rbx != bc, "register damaged"); | |
| 785 // get next byte | |
| 786 __ load_unsigned_byte(rbx, | |
| 787 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
| 788 | |
| 789 // do actual aload_0 | |
| 790 aload(0); | |
| 791 | |
| 792 // if _getfield then wait with rewrite | |
| 793 __ cmpl(rbx, Bytecodes::_getfield); | |
| 794 __ jcc(Assembler::equal, done); | |
| 795 | |
| 796 // if _igetfield then reqrite to _fast_iaccess_0 | |
| 797 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
| 798 Bytecodes::_aload_0, | |
| 799 "fix bytecode definition"); | |
| 800 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
| 801 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
| 802 __ jccb(Assembler::equal, rewrite); | |
| 803 | |
| 804 // if _agetfield then reqrite to _fast_aaccess_0 | |
| 805 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
| 806 Bytecodes::_aload_0, | |
| 807 "fix bytecode definition"); | |
| 808 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
| 809 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
| 810 __ jccb(Assembler::equal, rewrite); | |
| 811 | |
| 812 // if _fgetfield then reqrite to _fast_faccess_0 | |
| 813 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
| 814 Bytecodes::_aload_0, | |
| 815 "fix bytecode definition"); | |
| 816 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
| 817 __ movl(bc, Bytecodes::_fast_faccess_0); | |
| 818 __ jccb(Assembler::equal, rewrite); | |
| 819 | |
| 820 // else rewrite to _fast_aload0 | |
| 821 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
| 822 Bytecodes::_aload_0, | |
| 823 "fix bytecode definition"); | |
| 824 __ movl(bc, Bytecodes::_fast_aload_0); | |
| 825 | |
| 826 // rewrite | |
| 827 // bc: fast bytecode | |
| 828 __ bind(rewrite); | |
| 829 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
| 830 | |
| 831 __ bind(done); | |
| 832 } else { | |
| 833 aload(0); | |
| 834 } | |
| 835 } | |
| 836 | |
| 837 void TemplateTable::istore() { | |
| 838 transition(itos, vtos); | |
| 839 locals_index(rbx); | |
| 840 __ movl(iaddress(rbx), rax); | |
| 841 } | |
| 842 | |
| 843 void TemplateTable::lstore() { | |
| 844 transition(ltos, vtos); | |
| 845 locals_index(rbx); | |
| 846 __ movq(laddress(rbx), rax); | |
| 847 } | |
| 848 | |
| 849 void TemplateTable::fstore() { | |
| 850 transition(ftos, vtos); | |
| 851 locals_index(rbx); | |
| 852 __ movflt(faddress(rbx), xmm0); | |
| 853 } | |
| 854 | |
| 855 void TemplateTable::dstore() { | |
| 856 transition(dtos, vtos); | |
| 857 locals_index(rbx); | |
| 858 __ movdbl(daddress(rbx), xmm0); | |
| 859 } | |
| 860 | |
| 861 void TemplateTable::astore() { | |
| 862 transition(vtos, vtos); | |
| 1506 | 863 __ pop_ptr(rax); |
| 0 | 864 locals_index(rbx); |
| 304 | 865 __ movptr(aaddress(rbx), rax); |
| 0 | 866 } |
| 867 | |
| 868 void TemplateTable::wide_istore() { | |
| 869 transition(vtos, vtos); | |
| 870 __ pop_i(); | |
| 871 locals_index_wide(rbx); | |
| 872 __ movl(iaddress(rbx), rax); | |
| 873 } | |
| 874 | |
| 875 void TemplateTable::wide_lstore() { | |
| 876 transition(vtos, vtos); | |
| 877 __ pop_l(); | |
| 878 locals_index_wide(rbx); | |
| 879 __ movq(laddress(rbx), rax); | |
| 880 } | |
| 881 | |
| 882 void TemplateTable::wide_fstore() { | |
| 883 transition(vtos, vtos); | |
| 884 __ pop_f(); | |
| 885 locals_index_wide(rbx); | |
| 886 __ movflt(faddress(rbx), xmm0); | |
| 887 } | |
| 888 | |
| 889 void TemplateTable::wide_dstore() { | |
| 890 transition(vtos, vtos); | |
| 891 __ pop_d(); | |
| 892 locals_index_wide(rbx); | |
| 893 __ movdbl(daddress(rbx), xmm0); | |
| 894 } | |
| 895 | |
| 896 void TemplateTable::wide_astore() { | |
| 897 transition(vtos, vtos); | |
| 1506 | 898 __ pop_ptr(rax); |
| 0 | 899 locals_index_wide(rbx); |
| 304 | 900 __ movptr(aaddress(rbx), rax); |
| 0 | 901 } |
| 902 | |
| 903 void TemplateTable::iastore() { | |
| 904 transition(itos, vtos); | |
| 905 __ pop_i(rbx); | |
| 906 __ pop_ptr(rdx); | |
| 907 // eax: value | |
| 908 // ebx: index | |
| 909 // rdx: array | |
| 910 index_check(rdx, rbx); // prefer index in ebx | |
| 911 __ movl(Address(rdx, rbx, | |
| 912 Address::times_4, | |
| 913 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
| 914 rax); | |
| 915 } | |
| 916 | |
| 917 void TemplateTable::lastore() { | |
| 918 transition(ltos, vtos); | |
| 919 __ pop_i(rbx); | |
| 920 __ pop_ptr(rdx); | |
| 921 // rax: value | |
| 922 // ebx: index | |
| 923 // rdx: array | |
| 924 index_check(rdx, rbx); // prefer index in ebx | |
| 925 __ movq(Address(rdx, rbx, | |
| 926 Address::times_8, | |
| 927 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
| 928 rax); | |
| 929 } | |
| 930 | |
| 931 void TemplateTable::fastore() { | |
| 932 transition(ftos, vtos); | |
| 933 __ pop_i(rbx); | |
| 934 __ pop_ptr(rdx); | |
| 935 // xmm0: value | |
| 936 // ebx: index | |
| 937 // rdx: array | |
| 938 index_check(rdx, rbx); // prefer index in ebx | |
| 939 __ movflt(Address(rdx, rbx, | |
| 940 Address::times_4, | |
| 941 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
| 942 xmm0); | |
| 943 } | |
| 944 | |
| 945 void TemplateTable::dastore() { | |
| 946 transition(dtos, vtos); | |
| 947 __ pop_i(rbx); | |
| 948 __ pop_ptr(rdx); | |
| 949 // xmm0: value | |
| 950 // ebx: index | |
| 951 // rdx: array | |
| 952 index_check(rdx, rbx); // prefer index in ebx | |
| 953 __ movdbl(Address(rdx, rbx, | |
| 954 Address::times_8, | |
| 955 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
| 956 xmm0); | |
| 957 } | |
| 958 | |
| 959 void TemplateTable::aastore() { | |
| 960 Label is_null, ok_is_subtype, done; | |
| 961 transition(vtos, vtos); | |
| 962 // stack: ..., array, index, value | |
| 304 | 963 __ movptr(rax, at_tos()); // value |
| 0 | 964 __ movl(rcx, at_tos_p1()); // index |
| 304 | 965 __ movptr(rdx, at_tos_p2()); // array |
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966 |
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967 Address element_address(rdx, rcx, |
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968 UseCompressedOops? Address::times_4 : Address::times_8, |
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969 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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970 |
| 0 | 971 index_check(rdx, rcx); // kills rbx |
| 972 // do array store check - check for NULL value first | |
| 304 | 973 __ testptr(rax, rax); |
| 0 | 974 __ jcc(Assembler::zero, is_null); |
| 975 | |
| 976 // Move subklass into rbx | |
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977 __ load_klass(rbx, rax); |
| 0 | 978 // Move superklass into rax |
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979 __ load_klass(rax, rdx); |
| 304 | 980 __ movptr(rax, Address(rax, |
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981 ObjArrayKlass::element_klass_offset())); |
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982 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
| 362 | 983 __ lea(rdx, element_address); |
| 0 | 984 |
| 985 // Generate subtype check. Blows rcx, rdi | |
| 986 // Superklass in rax. Subklass in rbx. | |
| 987 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 988 | |
| 989 // Come here on failure | |
| 990 // object is at TOS | |
| 991 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
| 992 | |
| 993 // Come here on success | |
| 994 __ bind(ok_is_subtype); | |
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995 |
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996 // Get the value we will store |
| 362 | 997 __ movptr(rax, at_tos()); |
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998 // Now store using the appropriate barrier |
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999 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
| 0 | 1000 __ jmp(done); |
| 1001 | |
| 1002 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
| 1003 __ bind(is_null); | |
| 1004 __ profile_null_seen(rbx); | |
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1005 |
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1006 // Store a NULL |
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1007 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
| 0 | 1008 |
| 1009 // Pop stack arguments | |
| 1010 __ bind(done); | |
| 1506 | 1011 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
| 0 | 1012 } |
| 1013 | |
| 1014 void TemplateTable::bastore() { | |
| 1015 transition(itos, vtos); | |
| 1016 __ pop_i(rbx); | |
| 1017 __ pop_ptr(rdx); | |
| 1018 // eax: value | |
| 1019 // ebx: index | |
| 1020 // rdx: array | |
| 1021 index_check(rdx, rbx); // prefer index in ebx | |
| 23614 | 1022 // Need to check whether array is boolean or byte |
| 1023 // since both types share the bastore bytecode. | |
| 1024 __ load_klass(rcx, rdx); | |
| 1025 __ movl(rcx, Address(rcx, Klass::layout_helper_offset())); | |
| 1026 int diffbit = Klass::layout_helper_boolean_diffbit(); | |
| 1027 __ testl(rcx, diffbit); | |
| 1028 Label L_skip; | |
| 1029 __ jccb(Assembler::zero, L_skip); | |
| 1030 __ andl(rax, 1); // if it is a T_BOOLEAN array, mask the stored value to 0/1 | |
| 1031 __ bind(L_skip); | |
| 0 | 1032 __ movb(Address(rdx, rbx, |
| 1033 Address::times_1, | |
| 1034 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
| 1035 rax); | |
| 1036 } | |
| 1037 | |
| 1038 void TemplateTable::castore() { | |
| 1039 transition(itos, vtos); | |
| 1040 __ pop_i(rbx); | |
| 1041 __ pop_ptr(rdx); | |
| 1042 // eax: value | |
| 1043 // ebx: index | |
| 1044 // rdx: array | |
| 1045 index_check(rdx, rbx); // prefer index in ebx | |
| 1046 __ movw(Address(rdx, rbx, | |
| 1047 Address::times_2, | |
| 1048 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
| 1049 rax); | |
| 1050 } | |
| 1051 | |
| 1052 void TemplateTable::sastore() { | |
| 1053 castore(); | |
| 1054 } | |
| 1055 | |
| 1056 void TemplateTable::istore(int n) { | |
| 1057 transition(itos, vtos); | |
| 1058 __ movl(iaddress(n), rax); | |
| 1059 } | |
| 1060 | |
| 1061 void TemplateTable::lstore(int n) { | |
| 1062 transition(ltos, vtos); | |
| 1063 __ movq(laddress(n), rax); | |
| 1064 } | |
| 1065 | |
| 1066 void TemplateTable::fstore(int n) { | |
| 1067 transition(ftos, vtos); | |
| 1068 __ movflt(faddress(n), xmm0); | |
| 1069 } | |
| 1070 | |
| 1071 void TemplateTable::dstore(int n) { | |
| 1072 transition(dtos, vtos); | |
| 1073 __ movdbl(daddress(n), xmm0); | |
| 1074 } | |
| 1075 | |
| 1076 void TemplateTable::astore(int n) { | |
| 1077 transition(vtos, vtos); | |
| 1506 | 1078 __ pop_ptr(rax); |
| 304 | 1079 __ movptr(aaddress(n), rax); |
| 0 | 1080 } |
| 1081 | |
| 1082 void TemplateTable::pop() { | |
| 1083 transition(vtos, vtos); | |
| 1506 | 1084 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1085 } |
| 1086 | |
| 1087 void TemplateTable::pop2() { | |
| 1088 transition(vtos, vtos); | |
| 1506 | 1089 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1090 } |
| 1091 | |
| 1092 void TemplateTable::dup() { | |
| 1093 transition(vtos, vtos); | |
| 1506 | 1094 __ load_ptr(0, rax); |
| 1095 __ push_ptr(rax); | |
| 0 | 1096 // stack: ..., a, a |
| 1097 } | |
| 1098 | |
| 1099 void TemplateTable::dup_x1() { | |
| 1100 transition(vtos, vtos); | |
| 1101 // stack: ..., a, b | |
| 1506 | 1102 __ load_ptr( 0, rax); // load b |
| 1103 __ load_ptr( 1, rcx); // load a | |
| 1104 __ store_ptr(1, rax); // store b | |
| 1105 __ store_ptr(0, rcx); // store a | |
| 1106 __ push_ptr(rax); // push b | |
| 0 | 1107 // stack: ..., b, a, b |
| 1108 } | |
| 1109 | |
| 1110 void TemplateTable::dup_x2() { | |
| 1111 transition(vtos, vtos); | |
| 1112 // stack: ..., a, b, c | |
| 1506 | 1113 __ load_ptr( 0, rax); // load c |
| 1114 __ load_ptr( 2, rcx); // load a | |
| 1115 __ store_ptr(2, rax); // store c in a | |
| 1116 __ push_ptr(rax); // push c | |
| 0 | 1117 // stack: ..., c, b, c, c |
| 1506 | 1118 __ load_ptr( 2, rax); // load b |
| 1119 __ store_ptr(2, rcx); // store a in b | |
| 0 | 1120 // stack: ..., c, a, c, c |
| 1506 | 1121 __ store_ptr(1, rax); // store b in c |
| 0 | 1122 // stack: ..., c, a, b, c |
| 1123 } | |
| 1124 | |
| 1125 void TemplateTable::dup2() { | |
| 1126 transition(vtos, vtos); | |
| 1127 // stack: ..., a, b | |
| 1506 | 1128 __ load_ptr(1, rax); // load a |
| 1129 __ push_ptr(rax); // push a | |
| 1130 __ load_ptr(1, rax); // load b | |
| 1131 __ push_ptr(rax); // push b | |
| 0 | 1132 // stack: ..., a, b, a, b |
| 1133 } | |
| 1134 | |
| 1135 void TemplateTable::dup2_x1() { | |
| 1136 transition(vtos, vtos); | |
| 1137 // stack: ..., a, b, c | |
| 1506 | 1138 __ load_ptr( 0, rcx); // load c |
| 1139 __ load_ptr( 1, rax); // load b | |
| 1140 __ push_ptr(rax); // push b | |
| 1141 __ push_ptr(rcx); // push c | |
| 0 | 1142 // stack: ..., a, b, c, b, c |
| 1506 | 1143 __ store_ptr(3, rcx); // store c in b |
| 0 | 1144 // stack: ..., a, c, c, b, c |
| 1506 | 1145 __ load_ptr( 4, rcx); // load a |
| 1146 __ store_ptr(2, rcx); // store a in 2nd c | |
| 0 | 1147 // stack: ..., a, c, a, b, c |
| 1506 | 1148 __ store_ptr(4, rax); // store b in a |
| 0 | 1149 // stack: ..., b, c, a, b, c |
| 1150 } | |
| 1151 | |
| 1152 void TemplateTable::dup2_x2() { | |
| 1153 transition(vtos, vtos); | |
| 1154 // stack: ..., a, b, c, d | |
| 1506 | 1155 __ load_ptr( 0, rcx); // load d |
| 1156 __ load_ptr( 1, rax); // load c | |
| 1157 __ push_ptr(rax); // push c | |
| 1158 __ push_ptr(rcx); // push d | |
| 0 | 1159 // stack: ..., a, b, c, d, c, d |
| 1506 | 1160 __ load_ptr( 4, rax); // load b |
| 1161 __ store_ptr(2, rax); // store b in d | |
| 1162 __ store_ptr(4, rcx); // store d in b | |
| 0 | 1163 // stack: ..., a, d, c, b, c, d |
| 1506 | 1164 __ load_ptr( 5, rcx); // load a |
| 1165 __ load_ptr( 3, rax); // load c | |
| 1166 __ store_ptr(3, rcx); // store a in c | |
| 1167 __ store_ptr(5, rax); // store c in a | |
| 0 | 1168 // stack: ..., c, d, a, b, c, d |
| 1169 } | |
| 1170 | |
| 1171 void TemplateTable::swap() { | |
| 1172 transition(vtos, vtos); | |
| 1173 // stack: ..., a, b | |
| 1506 | 1174 __ load_ptr( 1, rcx); // load a |
| 1175 __ load_ptr( 0, rax); // load b | |
| 1176 __ store_ptr(0, rcx); // store a in b | |
| 1177 __ store_ptr(1, rax); // store b in a | |
| 0 | 1178 // stack: ..., b, a |
| 1179 } | |
| 1180 | |
| 1181 void TemplateTable::iop2(Operation op) { | |
| 1182 transition(itos, itos); | |
| 1183 switch (op) { | |
| 1184 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
| 1185 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
| 1186 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
| 1187 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
| 1188 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
| 1189 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
| 1190 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
| 1191 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
| 1192 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
| 1193 default : ShouldNotReachHere(); | |
| 1194 } | |
| 1195 } | |
| 1196 | |
| 1197 void TemplateTable::lop2(Operation op) { | |
| 1198 transition(ltos, ltos); | |
| 1199 switch (op) { | |
| 1506 | 1200 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
| 1201 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
| 1202 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
| 1203 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
| 1204 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
| 1205 default : ShouldNotReachHere(); | |
| 0 | 1206 } |
| 1207 } | |
| 1208 | |
| 1209 void TemplateTable::idiv() { | |
| 1210 transition(itos, itos); | |
| 1211 __ movl(rcx, rax); | |
| 1212 __ pop_i(rax); | |
| 1213 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1214 // they are not equal, one could do a normal division (no correction | |
| 1215 // needed), which may speed up this implementation for the common case. | |
| 1216 // (see also JVM spec., p.243 & p.271) | |
| 1217 __ corrected_idivl(rcx); | |
| 1218 } | |
| 1219 | |
| 1220 void TemplateTable::irem() { | |
| 1221 transition(itos, itos); | |
| 1222 __ movl(rcx, rax); | |
| 1223 __ pop_i(rax); | |
| 1224 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1225 // they are not equal, one could do a normal division (no correction | |
| 1226 // needed), which may speed up this implementation for the common case. | |
| 1227 // (see also JVM spec., p.243 & p.271) | |
| 1228 __ corrected_idivl(rcx); | |
| 1229 __ movl(rax, rdx); | |
| 1230 } | |
| 1231 | |
| 1232 void TemplateTable::lmul() { | |
| 1233 transition(ltos, ltos); | |
| 1234 __ pop_l(rdx); | |
| 1235 __ imulq(rax, rdx); | |
| 1236 } | |
| 1237 | |
| 1238 void TemplateTable::ldiv() { | |
| 1239 transition(ltos, ltos); | |
| 304 | 1240 __ mov(rcx, rax); |
| 0 | 1241 __ pop_l(rax); |
| 1242 // generate explicit div0 check | |
| 1243 __ testq(rcx, rcx); | |
| 1244 __ jump_cc(Assembler::zero, | |
| 1245 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1246 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1247 // they are not equal, one could do a normal division (no correction | |
| 1248 // needed), which may speed up this implementation for the common case. | |
| 1249 // (see also JVM spec., p.243 & p.271) | |
| 1250 __ corrected_idivq(rcx); // kills rbx | |
| 1251 } | |
| 1252 | |
| 1253 void TemplateTable::lrem() { | |
| 1254 transition(ltos, ltos); | |
| 304 | 1255 __ mov(rcx, rax); |
| 0 | 1256 __ pop_l(rax); |
| 1257 __ testq(rcx, rcx); | |
| 1258 __ jump_cc(Assembler::zero, | |
| 1259 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1260 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1261 // they are not equal, one could do a normal division (no correction | |
| 1262 // needed), which may speed up this implementation for the common case. | |
| 1263 // (see also JVM spec., p.243 & p.271) | |
| 1264 __ corrected_idivq(rcx); // kills rbx | |
| 304 | 1265 __ mov(rax, rdx); |
| 0 | 1266 } |
| 1267 | |
| 1268 void TemplateTable::lshl() { | |
| 1269 transition(itos, ltos); | |
| 1270 __ movl(rcx, rax); // get shift count | |
| 1271 __ pop_l(rax); // get shift value | |
| 1272 __ shlq(rax); | |
| 1273 } | |
| 1274 | |
| 1275 void TemplateTable::lshr() { | |
| 1276 transition(itos, ltos); | |
| 1277 __ movl(rcx, rax); // get shift count | |
| 1278 __ pop_l(rax); // get shift value | |
| 1279 __ sarq(rax); | |
| 1280 } | |
| 1281 | |
| 1282 void TemplateTable::lushr() { | |
| 1283 transition(itos, ltos); | |
| 1284 __ movl(rcx, rax); // get shift count | |
| 1285 __ pop_l(rax); // get shift value | |
| 1286 __ shrq(rax); | |
| 1287 } | |
| 1288 | |
| 1289 void TemplateTable::fop2(Operation op) { | |
| 1290 transition(ftos, ftos); | |
| 1291 switch (op) { | |
| 1292 case add: | |
| 1293 __ addss(xmm0, at_rsp()); | |
| 1506 | 1294 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1295 break; |
| 1296 case sub: | |
| 1297 __ movflt(xmm1, xmm0); | |
| 1298 __ pop_f(xmm0); | |
| 1299 __ subss(xmm0, xmm1); | |
| 1300 break; | |
| 1301 case mul: | |
| 1302 __ mulss(xmm0, at_rsp()); | |
| 1506 | 1303 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1304 break; |
| 1305 case div: | |
| 1306 __ movflt(xmm1, xmm0); | |
| 1307 __ pop_f(xmm0); | |
| 1308 __ divss(xmm0, xmm1); | |
| 1309 break; | |
| 1310 case rem: | |
| 1311 __ movflt(xmm1, xmm0); | |
| 1312 __ pop_f(xmm0); | |
| 1313 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
| 1314 break; | |
| 1315 default: | |
| 1316 ShouldNotReachHere(); | |
| 1317 break; | |
| 1318 } | |
| 1319 } | |
| 1320 | |
| 1321 void TemplateTable::dop2(Operation op) { | |
| 1322 transition(dtos, dtos); | |
| 1323 switch (op) { | |
| 1324 case add: | |
| 1325 __ addsd(xmm0, at_rsp()); | |
| 1506 | 1326 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1327 break; |
| 1328 case sub: | |
| 1329 __ movdbl(xmm1, xmm0); | |
| 1330 __ pop_d(xmm0); | |
| 1331 __ subsd(xmm0, xmm1); | |
| 1332 break; | |
| 1333 case mul: | |
| 1334 __ mulsd(xmm0, at_rsp()); | |
| 1506 | 1335 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1336 break; |
| 1337 case div: | |
| 1338 __ movdbl(xmm1, xmm0); | |
| 1339 __ pop_d(xmm0); | |
| 1340 __ divsd(xmm0, xmm1); | |
| 1341 break; | |
| 1342 case rem: | |
| 1343 __ movdbl(xmm1, xmm0); | |
| 1344 __ pop_d(xmm0); | |
| 1345 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
| 1346 break; | |
| 1347 default: | |
| 1348 ShouldNotReachHere(); | |
| 1349 break; | |
| 1350 } | |
| 1351 } | |
| 1352 | |
| 1353 void TemplateTable::ineg() { | |
| 1354 transition(itos, itos); | |
| 1355 __ negl(rax); | |
| 1356 } | |
| 1357 | |
| 1358 void TemplateTable::lneg() { | |
| 1359 transition(ltos, ltos); | |
| 1360 __ negq(rax); | |
| 1361 } | |
| 1362 | |
| 1363 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
| 1364 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
| 1365 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
| 1366 // of 128-bits operands for SSE instructions. | |
| 1367 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
| 1368 // Store the value to a 128-bits operand. | |
| 1369 operand[0] = lo; | |
| 1370 operand[1] = hi; | |
| 1371 return operand; | |
| 1372 } | |
| 1373 | |
| 1374 // Buffer for 128-bits masks used by SSE instructions. | |
| 1375 static jlong float_signflip_pool[2*2]; | |
| 1376 static jlong double_signflip_pool[2*2]; | |
| 1377 | |
| 1378 void TemplateTable::fneg() { | |
| 1379 transition(ftos, ftos); | |
| 1380 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
| 1381 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
| 1382 } | |
| 1383 | |
| 1384 void TemplateTable::dneg() { | |
| 1385 transition(dtos, dtos); | |
| 1386 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
| 1387 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
| 1388 } | |
| 1389 | |
| 1390 void TemplateTable::iinc() { | |
| 1391 transition(vtos, vtos); | |
| 1392 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
| 1393 locals_index(rbx); | |
| 1394 __ addl(iaddress(rbx), rdx); | |
| 1395 } | |
| 1396 | |
| 1397 void TemplateTable::wide_iinc() { | |
| 1398 transition(vtos, vtos); | |
| 1399 __ movl(rdx, at_bcp(4)); // get constant | |
| 1400 locals_index_wide(rbx); | |
| 1401 __ bswapl(rdx); // swap bytes & sign-extend constant | |
| 1402 __ sarl(rdx, 16); | |
| 1403 __ addl(iaddress(rbx), rdx); | |
| 1404 // Note: should probably use only one movl to get both | |
| 1405 // the index and the constant -> fix this | |
| 1406 } | |
| 1407 | |
| 1408 void TemplateTable::convert() { | |
| 1409 // Checking | |
| 1410 #ifdef ASSERT | |
| 1411 { | |
| 1412 TosState tos_in = ilgl; | |
| 1413 TosState tos_out = ilgl; | |
| 1414 switch (bytecode()) { | |
| 1415 case Bytecodes::_i2l: // fall through | |
| 1416 case Bytecodes::_i2f: // fall through | |
| 1417 case Bytecodes::_i2d: // fall through | |
| 1418 case Bytecodes::_i2b: // fall through | |
| 1419 case Bytecodes::_i2c: // fall through | |
| 1420 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1421 case Bytecodes::_l2i: // fall through | |
| 1422 case Bytecodes::_l2f: // fall through | |
| 1423 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1424 case Bytecodes::_f2i: // fall through | |
| 1425 case Bytecodes::_f2l: // fall through | |
| 1426 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1427 case Bytecodes::_d2i: // fall through | |
| 1428 case Bytecodes::_d2l: // fall through | |
| 1429 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1430 default : ShouldNotReachHere(); | |
| 1431 } | |
| 1432 switch (bytecode()) { | |
| 1433 case Bytecodes::_l2i: // fall through | |
| 1434 case Bytecodes::_f2i: // fall through | |
| 1435 case Bytecodes::_d2i: // fall through | |
| 1436 case Bytecodes::_i2b: // fall through | |
| 1437 case Bytecodes::_i2c: // fall through | |
| 1438 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1439 case Bytecodes::_i2l: // fall through | |
| 1440 case Bytecodes::_f2l: // fall through | |
| 1441 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1442 case Bytecodes::_i2f: // fall through | |
| 1443 case Bytecodes::_l2f: // fall through | |
| 1444 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1445 case Bytecodes::_i2d: // fall through | |
| 1446 case Bytecodes::_l2d: // fall through | |
| 1447 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1448 default : ShouldNotReachHere(); | |
| 1449 } | |
| 1450 transition(tos_in, tos_out); | |
| 1451 } | |
| 1452 #endif // ASSERT | |
| 1453 | |
| 1454 static const int64_t is_nan = 0x8000000000000000L; | |
| 1455 | |
| 1456 // Conversion | |
| 1457 switch (bytecode()) { | |
| 1458 case Bytecodes::_i2l: | |
| 1459 __ movslq(rax, rax); | |
| 1460 break; | |
| 1461 case Bytecodes::_i2f: | |
| 1462 __ cvtsi2ssl(xmm0, rax); | |
| 1463 break; | |
| 1464 case Bytecodes::_i2d: | |
| 1465 __ cvtsi2sdl(xmm0, rax); | |
| 1466 break; | |
| 1467 case Bytecodes::_i2b: | |
| 1468 __ movsbl(rax, rax); | |
| 1469 break; | |
| 1470 case Bytecodes::_i2c: | |
| 1471 __ movzwl(rax, rax); | |
| 1472 break; | |
| 1473 case Bytecodes::_i2s: | |
| 1474 __ movswl(rax, rax); | |
| 1475 break; | |
| 1476 case Bytecodes::_l2i: | |
| 1477 __ movl(rax, rax); | |
| 1478 break; | |
| 1479 case Bytecodes::_l2f: | |
| 1480 __ cvtsi2ssq(xmm0, rax); | |
| 1481 break; | |
| 1482 case Bytecodes::_l2d: | |
| 1483 __ cvtsi2sdq(xmm0, rax); | |
| 1484 break; | |
| 1485 case Bytecodes::_f2i: | |
| 1486 { | |
| 1487 Label L; | |
| 1488 __ cvttss2sil(rax, xmm0); | |
| 1489 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1490 __ jcc(Assembler::notEqual, L); | |
| 1491 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
| 1492 __ bind(L); | |
| 1493 } | |
| 1494 break; | |
| 1495 case Bytecodes::_f2l: | |
| 1496 { | |
| 1497 Label L; | |
| 1498 __ cvttss2siq(rax, xmm0); | |
| 1499 // NaN or overflow/underflow? | |
| 1500 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1501 __ jcc(Assembler::notEqual, L); | |
| 1502 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
| 1503 __ bind(L); | |
| 1504 } | |
| 1505 break; | |
| 1506 case Bytecodes::_f2d: | |
| 1507 __ cvtss2sd(xmm0, xmm0); | |
| 1508 break; | |
| 1509 case Bytecodes::_d2i: | |
| 1510 { | |
| 1511 Label L; | |
| 1512 __ cvttsd2sil(rax, xmm0); | |
| 1513 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1514 __ jcc(Assembler::notEqual, L); | |
| 1515 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
| 1516 __ bind(L); | |
| 1517 } | |
| 1518 break; | |
| 1519 case Bytecodes::_d2l: | |
| 1520 { | |
| 1521 Label L; | |
| 1522 __ cvttsd2siq(rax, xmm0); | |
| 1523 // NaN or overflow/underflow? | |
| 1524 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1525 __ jcc(Assembler::notEqual, L); | |
| 1526 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
| 1527 __ bind(L); | |
| 1528 } | |
| 1529 break; | |
| 1530 case Bytecodes::_d2f: | |
| 1531 __ cvtsd2ss(xmm0, xmm0); | |
| 1532 break; | |
| 1533 default: | |
| 1534 ShouldNotReachHere(); | |
| 1535 } | |
| 1536 } | |
| 1537 | |
| 1538 void TemplateTable::lcmp() { | |
| 1539 transition(ltos, itos); | |
| 1540 Label done; | |
| 1541 __ pop_l(rdx); | |
| 1542 __ cmpq(rdx, rax); | |
| 1543 __ movl(rax, -1); | |
| 1544 __ jccb(Assembler::less, done); | |
| 1545 __ setb(Assembler::notEqual, rax); | |
| 1546 __ movzbl(rax, rax); | |
| 1547 __ bind(done); | |
| 1548 } | |
| 1549 | |
| 1550 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1551 Label done; | |
| 1552 if (is_float) { | |
| 1553 // XXX get rid of pop here, use ... reg, mem32 | |
| 1554 __ pop_f(xmm1); | |
| 1555 __ ucomiss(xmm1, xmm0); | |
| 1556 } else { | |
| 1557 // XXX get rid of pop here, use ... reg, mem64 | |
| 1558 __ pop_d(xmm1); | |
| 1559 __ ucomisd(xmm1, xmm0); | |
| 1560 } | |
| 1561 if (unordered_result < 0) { | |
| 1562 __ movl(rax, -1); | |
| 1563 __ jccb(Assembler::parity, done); | |
| 1564 __ jccb(Assembler::below, done); | |
| 1565 __ setb(Assembler::notEqual, rdx); | |
| 1566 __ movzbl(rax, rdx); | |
| 1567 } else { | |
| 1568 __ movl(rax, 1); | |
| 1569 __ jccb(Assembler::parity, done); | |
| 1570 __ jccb(Assembler::above, done); | |
| 1571 __ movl(rax, 0); | |
| 1572 __ jccb(Assembler::equal, done); | |
| 1573 __ decrementl(rax); | |
| 1574 } | |
| 1575 __ bind(done); | |
| 1576 } | |
| 1577 | |
| 1578 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1579 __ get_method(rcx); // rcx holds method | |
| 1580 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
| 1581 // holds bumped taken count | |
| 1582 | |
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1583 const ByteSize be_offset = MethodCounters::backedge_counter_offset() + |
| 0 | 1584 InvocationCounter::counter_offset(); |
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1585 const ByteSize inv_offset = MethodCounters::invocation_counter_offset() + |
| 0 | 1586 InvocationCounter::counter_offset(); |
| 1587 | |
| 1588 // Load up edx with the branch displacement | |
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1589 if (is_wide) { |
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1590 __ movl(rdx, at_bcp(1)); |
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1591 } else { |
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1592 __ load_signed_short(rdx, at_bcp(1)); |
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1593 } |
| 0 | 1594 __ bswapl(rdx); |
| 1595 | |
| 1596 if (!is_wide) { | |
| 1597 __ sarl(rdx, 16); | |
| 1598 } | |
| 304 | 1599 __ movl2ptr(rdx, rdx); |
| 0 | 1600 |
| 1601 // Handle all the JSR stuff here, then exit. | |
| 1602 // It's much shorter and cleaner than intermingling with the non-JSR | |
| 605 | 1603 // normal-branch stuff occurring below. |
| 0 | 1604 if (is_jsr) { |
| 1605 // Pre-load the next target bytecode into rbx | |
| 1606 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
| 1607 | |
| 1608 // compute return address as bci in rax | |
| 304 | 1609 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1610 in_bytes(ConstMethod::codes_offset()))); |
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1611 __ subptr(rax, Address(rcx, Method::const_offset())); |
| 0 | 1612 // Adjust the bcp in r13 by the displacement in rdx |
| 304 | 1613 __ addptr(r13, rdx); |
| 0 | 1614 // jsr returns atos that is not an oop |
| 1615 __ push_i(rax); | |
| 1616 __ dispatch_only(vtos); | |
| 1617 return; | |
| 1618 } | |
| 1619 | |
| 1620 // Normal (non-jsr) branch handling | |
| 1621 | |
| 1622 // Adjust the bcp in r13 by the displacement in rdx | |
| 304 | 1623 __ addptr(r13, rdx); |
| 0 | 1624 |
| 1625 assert(UseLoopCounter || !UseOnStackReplacement, | |
| 1626 "on-stack-replacement requires loop counters"); | |
| 1627 Label backedge_counter_overflow; | |
| 1628 Label profile_method; | |
| 1629 Label dispatch; | |
| 1630 if (UseLoopCounter) { | |
| 1631 // increment backedge counter for backward branches | |
| 1632 // rax: MDO | |
| 1633 // ebx: MDO bumped taken-count | |
| 1634 // rcx: method | |
| 1635 // rdx: target offset | |
| 1636 // r13: target bcp | |
| 1637 // r14: locals pointer | |
| 1638 __ testl(rdx, rdx); // check if forward or backward branch | |
| 1639 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
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1640 |
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1641 // check if MethodCounters exists |
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1642 Label has_counters; |
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1643 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1644 __ testptr(rax, rax); |
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1645 __ jcc(Assembler::notZero, has_counters); |
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1646 __ push(rdx); |
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1647 __ push(rcx); |
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1648 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::build_method_counters), |
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1649 rcx); |
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1650 __ pop(rcx); |
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1651 __ pop(rdx); |
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1652 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1653 __ jcc(Assembler::zero, dispatch); |
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1654 __ bind(has_counters); |
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1655 |
| 1783 | 1656 if (TieredCompilation) { |
| 1657 Label no_mdo; | |
| 1658 int increment = InvocationCounter::count_increment; | |
| 1659 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1660 if (ProfileInterpreter) { | |
| 1661 // Are we profiling? | |
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1662 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
| 1783 | 1663 __ testptr(rbx, rbx); |
| 1664 __ jccb(Assembler::zero, no_mdo); | |
| 1665 // Increment the MDO backedge counter | |
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1666 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1667 in_bytes(InvocationCounter::counter_offset())); |
| 1668 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
| 1669 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 1670 __ jmp(dispatch); | |
| 0 | 1671 } |
| 1783 | 1672 __ bind(no_mdo); |
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1673 // Increment backedge counter in MethodCounters* |
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1674 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1675 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
| 1676 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 0 | 1677 } else { |
| 1783 | 1678 // increment counter |
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1679 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
| 1783 | 1680 __ movl(rax, Address(rcx, be_offset)); // load backedge counter |
| 1681 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
| 1682 __ movl(Address(rcx, be_offset), rax); // store counter | |
| 1683 | |
| 1684 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
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1685 |
| 1783 | 1686 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits |
| 1687 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
| 1688 | |
| 1689 if (ProfileInterpreter) { | |
| 1690 // Test to see if we should create a method data oop | |
| 0 | 1691 __ cmp32(rax, |
| 1783 | 1692 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
| 1693 __ jcc(Assembler::less, dispatch); | |
| 1694 | |
| 1695 // if no method data exists, go to profile method | |
| 1696 __ test_method_data_pointer(rax, profile_method); | |
| 1697 | |
| 1698 if (UseOnStackReplacement) { | |
| 1699 // check for overflow against ebx which is the MDO taken count | |
| 1700 __ cmp32(rbx, | |
| 1701 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1702 __ jcc(Assembler::below, dispatch); | |
| 1703 | |
| 1704 // When ProfileInterpreter is on, the backedge_count comes | |
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1705 // from the MethodData*, which value does not get reset on |
| 1783 | 1706 // the call to frequency_counter_overflow(). To avoid |
| 1707 // excessive calls to the overflow routine while the method is | |
| 1708 // being compiled, add a second test to make sure the overflow | |
| 1709 // function is called only once every overflow_frequency. | |
| 1710 const int overflow_frequency = 1024; | |
| 1711 __ andl(rbx, overflow_frequency - 1); | |
| 1712 __ jcc(Assembler::zero, backedge_counter_overflow); | |
| 1713 | |
| 1714 } | |
| 1715 } else { | |
| 1716 if (UseOnStackReplacement) { | |
| 1717 // check for overflow against eax, which is the sum of the | |
| 1718 // counters | |
| 1719 __ cmp32(rax, | |
| 1720 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1721 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
| 1722 | |
| 1723 } | |
| 0 | 1724 } |
| 1725 } | |
| 1726 __ bind(dispatch); | |
| 1727 } | |
| 1728 | |
| 1729 // Pre-load the next target bytecode into rbx | |
| 1730 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
| 1731 | |
| 1732 // continue with the bytecode @ target | |
| 1733 // eax: return bci for jsr's, unused otherwise | |
| 1734 // ebx: target bytecode | |
| 1735 // r13: target bcp | |
| 1736 __ dispatch_only(vtos); | |
| 1737 | |
| 1738 if (UseLoopCounter) { | |
| 1739 if (ProfileInterpreter) { | |
| 1740 // Out-of-line code to allocate method data oop. | |
| 1741 __ bind(profile_method); | |
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1742 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
| 0 | 1743 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1744 __ set_method_data_pointer_for_bcp(); |
| 0 | 1745 __ jmp(dispatch); |
| 1746 } | |
| 1747 | |
| 1748 if (UseOnStackReplacement) { | |
| 1749 // invocation counter overflow | |
| 1750 __ bind(backedge_counter_overflow); | |
| 304 | 1751 __ negptr(rdx); |
| 1752 __ addptr(rdx, r13); // branch bcp | |
| 0 | 1753 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
| 1754 __ call_VM(noreg, | |
| 1755 CAST_FROM_FN_PTR(address, | |
| 1756 InterpreterRuntime::frequency_counter_overflow), | |
| 1757 rdx); | |
| 1758 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
| 1759 | |
| 1760 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
| 1761 // ebx: target bytecode | |
| 1762 // rdx: scratch | |
| 1763 // r14: locals pointer | |
| 1764 // r13: bcp | |
| 304 | 1765 __ testptr(rax, rax); // test result |
| 0 | 1766 __ jcc(Assembler::zero, dispatch); // no osr if null |
| 1767 // nmethod may have been invalidated (VM may block upon call_VM return) | |
| 1768 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
| 1769 __ cmpl(rcx, InvalidOSREntryBci); | |
| 1770 __ jcc(Assembler::equal, dispatch); | |
| 1771 | |
| 1772 // We have the address of an on stack replacement routine in eax | |
| 1773 // We need to prepare to execute the OSR method. First we must | |
| 1774 // migrate the locals and monitors off of the stack. | |
| 1775 | |
| 304 | 1776 __ mov(r13, rax); // save the nmethod |
| 0 | 1777 |
| 1778 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
| 1779 | |
| 1780 // eax is OSR buffer, move it to expected parameter location | |
| 304 | 1781 __ mov(j_rarg0, rax); |
| 0 | 1782 |
| 1783 // We use j_rarg definitions here so that registers don't conflict as parameter | |
| 1784 // registers change across platforms as we are in the midst of a calling | |
| 1785 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
| 1786 | |
| 1787 const Register retaddr = j_rarg2; | |
| 1788 const Register sender_sp = j_rarg1; | |
| 1789 | |
| 1790 // pop the interpreter frame | |
| 304 | 1791 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1792 __ leave(); // remove frame anchor |
| 304 | 1793 __ pop(retaddr); // get return address |
| 1794 __ mov(rsp, sender_sp); // set sp to sender sp | |
| 0 | 1795 // Ensure compiled code always sees stack at proper alignment |
| 304 | 1796 __ andptr(rsp, -(StackAlignmentInBytes)); |
| 0 | 1797 |
| 1798 // unlike x86 we need no specialized return from compiled code | |
| 1799 // to the interpreter or the call stub. | |
| 1800 | |
| 1801 // push the return address | |
| 304 | 1802 __ push(retaddr); |
| 0 | 1803 |
| 1804 // and begin the OSR nmethod | |
| 1805 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
| 1806 } | |
| 1807 } | |
| 1808 } | |
| 1809 | |
| 1810 | |
| 1811 void TemplateTable::if_0cmp(Condition cc) { | |
| 1812 transition(itos, vtos); | |
| 1813 // assume branch is more often taken than not (loops use backward branches) | |
| 1814 Label not_taken; | |
| 1815 __ testl(rax, rax); | |
| 1816 __ jcc(j_not(cc), not_taken); | |
| 1817 branch(false, false); | |
| 1818 __ bind(not_taken); | |
| 1819 __ profile_not_taken_branch(rax); | |
| 1820 } | |
| 1821 | |
| 1822 void TemplateTable::if_icmp(Condition cc) { | |
| 1823 transition(itos, vtos); | |
| 1824 // assume branch is more often taken than not (loops use backward branches) | |
| 1825 Label not_taken; | |
| 1826 __ pop_i(rdx); | |
| 1827 __ cmpl(rdx, rax); | |
| 1828 __ jcc(j_not(cc), not_taken); | |
| 1829 branch(false, false); | |
| 1830 __ bind(not_taken); | |
| 1831 __ profile_not_taken_branch(rax); | |
| 1832 } | |
| 1833 | |
| 1834 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1835 transition(atos, vtos); | |
| 1836 // assume branch is more often taken than not (loops use backward branches) | |
| 1837 Label not_taken; | |
| 304 | 1838 __ testptr(rax, rax); |
| 0 | 1839 __ jcc(j_not(cc), not_taken); |
| 1840 branch(false, false); | |
| 1841 __ bind(not_taken); | |
| 1842 __ profile_not_taken_branch(rax); | |
| 1843 } | |
| 1844 | |
| 1845 void TemplateTable::if_acmp(Condition cc) { | |
| 1846 transition(atos, vtos); | |
| 1847 // assume branch is more often taken than not (loops use backward branches) | |
| 1848 Label not_taken; | |
| 1849 __ pop_ptr(rdx); | |
| 304 | 1850 __ cmpptr(rdx, rax); |
| 0 | 1851 __ jcc(j_not(cc), not_taken); |
| 1852 branch(false, false); | |
| 1853 __ bind(not_taken); | |
| 1854 __ profile_not_taken_branch(rax); | |
| 1855 } | |
| 1856 | |
| 1857 void TemplateTable::ret() { | |
| 1858 transition(vtos, vtos); | |
| 1859 locals_index(rbx); | |
| 304 | 1860 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1861 __ profile_ret(rbx, rcx); |
| 1862 __ get_method(rax); | |
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1863 __ movptr(r13, Address(rax, Method::const_offset())); |
| 304 | 1864 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1865 ConstMethod::codes_offset())); |
| 0 | 1866 __ dispatch_next(vtos); |
| 1867 } | |
| 1868 | |
| 1869 void TemplateTable::wide_ret() { | |
| 1870 transition(vtos, vtos); | |
| 1871 locals_index_wide(rbx); | |
| 304 | 1872 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1873 __ profile_ret(rbx, rcx); |
| 1874 __ get_method(rax); | |
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1875 __ movptr(r13, Address(rax, Method::const_offset())); |
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1876 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
| 0 | 1877 __ dispatch_next(vtos); |
| 1878 } | |
| 1879 | |
| 1880 void TemplateTable::tableswitch() { | |
| 1881 Label default_case, continue_execution; | |
| 1882 transition(itos, vtos); | |
| 1883 // align r13 | |
| 304 | 1884 __ lea(rbx, at_bcp(BytesPerInt)); |
| 1885 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1886 // load lo & hi |
| 1887 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1888 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
| 1889 __ bswapl(rcx); | |
| 1890 __ bswapl(rdx); | |
| 1891 // check against lo & hi | |
| 1892 __ cmpl(rax, rcx); | |
| 1893 __ jcc(Assembler::less, default_case); | |
| 1894 __ cmpl(rax, rdx); | |
| 1895 __ jcc(Assembler::greater, default_case); | |
| 1896 // lookup dispatch offset | |
| 1897 __ subl(rax, rcx); | |
| 1898 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
| 1899 __ profile_switch_case(rax, rbx, rcx); | |
| 1900 // continue execution | |
| 1901 __ bind(continue_execution); | |
| 1902 __ bswapl(rdx); | |
| 304 | 1903 __ movl2ptr(rdx, rdx); |
| 0 | 1904 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1905 __ addptr(r13, rdx); |
| 0 | 1906 __ dispatch_only(vtos); |
| 1907 // handle default | |
| 1908 __ bind(default_case); | |
| 1909 __ profile_switch_default(rax); | |
| 1910 __ movl(rdx, Address(rbx, 0)); | |
| 1911 __ jmp(continue_execution); | |
| 1912 } | |
| 1913 | |
| 1914 void TemplateTable::lookupswitch() { | |
| 1915 transition(itos, itos); | |
| 1916 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1917 } | |
| 1918 | |
| 1919 void TemplateTable::fast_linearswitch() { | |
| 1920 transition(itos, vtos); | |
| 1921 Label loop_entry, loop, found, continue_execution; | |
| 1922 // bswap rax so we can avoid bswapping the table entries | |
| 1923 __ bswapl(rax); | |
| 1924 // align r13 | |
| 304 | 1925 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
| 1926 // this instruction (change offsets | |
| 1927 // below) | |
| 1928 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1929 // set counter |
| 1930 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1931 __ bswapl(rcx); | |
| 1932 __ jmpb(loop_entry); | |
| 1933 // table search | |
| 1934 __ bind(loop); | |
| 1935 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
| 1936 __ jcc(Assembler::equal, found); | |
| 1937 __ bind(loop_entry); | |
| 1938 __ decrementl(rcx); | |
| 1939 __ jcc(Assembler::greaterEqual, loop); | |
| 1940 // default case | |
| 1941 __ profile_switch_default(rax); | |
| 1942 __ movl(rdx, Address(rbx, 0)); | |
| 1943 __ jmp(continue_execution); | |
| 1944 // entry found -> get offset | |
| 1945 __ bind(found); | |
| 1946 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
| 1947 __ profile_switch_case(rcx, rax, rbx); | |
| 1948 // continue execution | |
| 1949 __ bind(continue_execution); | |
| 1950 __ bswapl(rdx); | |
| 304 | 1951 __ movl2ptr(rdx, rdx); |
| 0 | 1952 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1953 __ addptr(r13, rdx); |
| 0 | 1954 __ dispatch_only(vtos); |
| 1955 } | |
| 1956 | |
| 1957 void TemplateTable::fast_binaryswitch() { | |
| 1958 transition(itos, vtos); | |
| 1959 // Implementation using the following core algorithm: | |
| 1960 // | |
| 1961 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1962 // // Binary search according to "Methodik des Programmierens" by | |
| 1963 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1964 // int i = 0; | |
| 1965 // int j = n; | |
| 1966 // while (i+1 < j) { | |
| 1967 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1968 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1969 // // where a stands for the array and assuming that the (inexisting) | |
| 1970 // // element a[n] is infinitely big. | |
| 1971 // int h = (i + j) >> 1; | |
| 1972 // // i < h < j | |
| 1973 // if (key < array[h].fast_match()) { | |
| 1974 // j = h; | |
| 1975 // } else { | |
| 1976 // i = h; | |
| 1977 // } | |
| 1978 // } | |
| 1979 // // R: a[i] <= key < a[i+1] or Q | |
| 1980 // // (i.e., if key is within array, i is the correct index) | |
| 1981 // return i; | |
| 1982 // } | |
| 1983 | |
| 1984 // Register allocation | |
| 1985 const Register key = rax; // already set (tosca) | |
| 1986 const Register array = rbx; | |
| 1987 const Register i = rcx; | |
| 1988 const Register j = rdx; | |
| 1989 const Register h = rdi; | |
| 1990 const Register temp = rsi; | |
| 1991 | |
| 1992 // Find array start | |
| 304 | 1993 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
| 1994 // get rid of this | |
| 1995 // instruction (change | |
| 1996 // offsets below) | |
| 1997 __ andptr(array, -BytesPerInt); | |
| 0 | 1998 |
| 1999 // Initialize i & j | |
| 2000 __ xorl(i, i); // i = 0; | |
| 2001 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
| 2002 | |
| 2003 // Convert j into native byteordering | |
| 2004 __ bswapl(j); | |
| 2005 | |
| 2006 // And start | |
| 2007 Label entry; | |
| 2008 __ jmp(entry); | |
| 2009 | |
| 2010 // binary search loop | |
| 2011 { | |
| 2012 Label loop; | |
| 2013 __ bind(loop); | |
| 2014 // int h = (i + j) >> 1; | |
| 2015 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
| 2016 __ sarl(h, 1); // h = (i + j) >> 1; | |
| 2017 // if (key < array[h].fast_match()) { | |
| 2018 // j = h; | |
| 2019 // } else { | |
| 2020 // i = h; | |
| 2021 // } | |
| 2022 // Convert array[h].match to native byte-ordering before compare | |
| 2023 __ movl(temp, Address(array, h, Address::times_8)); | |
| 2024 __ bswapl(temp); | |
| 2025 __ cmpl(key, temp); | |
| 2026 // j = h if (key < array[h].fast_match()) | |
| 2027 __ cmovl(Assembler::less, j, h); | |
| 2028 // i = h if (key >= array[h].fast_match()) | |
| 2029 __ cmovl(Assembler::greaterEqual, i, h); | |
| 2030 // while (i+1 < j) | |
| 2031 __ bind(entry); | |
| 2032 __ leal(h, Address(i, 1)); // i+1 | |
| 2033 __ cmpl(h, j); // i+1 < j | |
| 2034 __ jcc(Assembler::less, loop); | |
| 2035 } | |
| 2036 | |
| 2037 // end of binary search, result index is i (must check again!) | |
| 2038 Label default_case; | |
| 2039 // Convert array[i].match to native byte-ordering before compare | |
| 2040 __ movl(temp, Address(array, i, Address::times_8)); | |
| 2041 __ bswapl(temp); | |
| 2042 __ cmpl(key, temp); | |
| 2043 __ jcc(Assembler::notEqual, default_case); | |
| 2044 | |
| 2045 // entry found -> j = offset | |
| 2046 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
| 2047 __ profile_switch_case(i, key, array); | |
| 2048 __ bswapl(j); | |
| 304 | 2049 __ movl2ptr(j, j); |
| 0 | 2050 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2051 __ addptr(r13, j); |
| 0 | 2052 __ dispatch_only(vtos); |
| 2053 | |
| 2054 // default case -> j = default offset | |
| 2055 __ bind(default_case); | |
| 2056 __ profile_switch_default(i); | |
| 2057 __ movl(j, Address(array, -2 * BytesPerInt)); | |
| 2058 __ bswapl(j); | |
| 304 | 2059 __ movl2ptr(j, j); |
| 0 | 2060 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2061 __ addptr(r13, j); |
| 0 | 2062 __ dispatch_only(vtos); |
| 2063 } | |
| 2064 | |
| 2065 | |
| 2066 void TemplateTable::_return(TosState state) { | |
| 2067 transition(state, state); | |
| 2068 assert(_desc->calls_vm(), | |
| 2069 "inconsistent calls_vm information"); // call in remove_activation | |
| 2070 | |
| 2071 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2072 assert(state == vtos, "only valid state"); | |
| 304 | 2073 __ movptr(c_rarg1, aaddress(0)); |
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2074 __ load_klass(rdi, c_rarg1); |
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2075 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
| 0 | 2076 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
| 2077 Label skip_register_finalizer; | |
| 2078 __ jcc(Assembler::zero, skip_register_finalizer); | |
| 2079 | |
| 2080 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
| 2081 | |
| 2082 __ bind(skip_register_finalizer); | |
| 2083 } | |
| 2084 | |
| 23614 | 2085 // Narrow result if state is itos but result type is smaller. |
| 2086 // Need to narrow in the return bytecode rather than in generate_return_entry | |
| 2087 // since compiled code callers expect the result to already be narrowed. | |
| 2088 if (state == itos) { | |
| 2089 __ narrow(rax); | |
| 2090 } | |
| 0 | 2091 __ remove_activation(state, r13); |
| 23614 | 2092 |
| 0 | 2093 __ jmp(r13); |
| 2094 } | |
| 2095 | |
| 2096 // ---------------------------------------------------------------------------- | |
| 2097 // Volatile variables demand their effects be made known to all CPU's | |
| 2098 // in order. Store buffers on most chips allow reads & writes to | |
| 2099 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
| 2100 // without some kind of memory barrier (i.e., it's not sufficient that | |
| 2101 // the interpreter does not reorder volatile references, the hardware | |
| 2102 // also must not reorder them). | |
| 2103 // | |
| 2104 // According to the new Java Memory Model (JMM): | |
| 2105 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
| 2106 // writes act as aquire & release, so: | |
| 2107 // (2) A read cannot let unrelated NON-volatile memory refs that | |
| 2108 // happen after the read float up to before the read. It's OK for | |
| 2109 // non-volatile memory refs that happen before the volatile read to | |
| 2110 // float down below it. | |
| 2111 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
| 2112 // memory refs that happen BEFORE the write float down to after the | |
| 2113 // write. It's OK for non-volatile memory refs that happen after the | |
| 2114 // volatile write to float up before it. | |
| 2115 // | |
| 2116 // We only put in barriers around volatile refs (they are expensive), | |
| 2117 // not _between_ memory refs (that would require us to track the | |
| 2118 // flavor of the previous memory refs). Requirements (2) and (3) | |
| 2119 // require some barriers before volatile stores and after volatile | |
| 2120 // loads. These nearly cover requirement (1) but miss the | |
| 2121 // volatile-store-volatile-load case. This final case is placed after | |
| 2122 // volatile-stores although it could just as well go before | |
| 2123 // volatile-loads. | |
| 2124 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
| 2125 order_constraint) { | |
| 2126 // Helper function to insert a is-volatile test and memory barrier | |
| 2127 if (os::is_MP()) { // Not needed on single CPU | |
| 2128 __ membar(order_constraint); | |
| 2129 } | |
| 2130 } | |
| 2131 | |
| 1565 | 2132 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2133 Register Rcache, | |
| 2134 Register index, | |
| 2135 size_t index_size) { | |
| 0 | 2136 const Register temp = rbx; |
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2137 assert_different_registers(Rcache, index, temp); |
| 1565 | 2138 |
| 0 | 2139 Label resolved; |
| 1565 | 2140 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2141 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2142 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
| 1108 | 2143 __ jcc(Assembler::equal, resolved); |
| 0 | 2144 |
| 2145 // resolve first time through | |
| 2146 address entry; | |
| 2147 switch (bytecode()) { | |
| 2148 case Bytecodes::_getstatic: | |
| 2149 case Bytecodes::_putstatic: | |
| 2150 case Bytecodes::_getfield: | |
| 2151 case Bytecodes::_putfield: | |
| 2152 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
| 2153 break; | |
| 2154 case Bytecodes::_invokevirtual: | |
| 2155 case Bytecodes::_invokespecial: | |
| 2156 case Bytecodes::_invokestatic: | |
| 2157 case Bytecodes::_invokeinterface: | |
| 2158 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
| 2159 break; | |
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2160 case Bytecodes::_invokehandle: |
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2161 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2162 break; |
| 1108 | 2163 case Bytecodes::_invokedynamic: |
| 2164 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
| 2165 break; | |
| 0 | 2166 default: |
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2167 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
| 0 | 2168 break; |
| 2169 } | |
| 2170 __ movl(temp, (int) bytecode()); | |
| 2171 __ call_VM(noreg, entry, temp); | |
| 2172 | |
| 2173 // Update registers with resolved info | |
| 1565 | 2174 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2175 __ bind(resolved); |
| 2176 } | |
| 2177 | |
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2178 // The cache and index registers must be set before call |
| 0 | 2179 void TemplateTable::load_field_cp_cache_entry(Register obj, |
| 2180 Register cache, | |
| 2181 Register index, | |
| 2182 Register off, | |
| 2183 Register flags, | |
| 2184 bool is_static = false) { | |
| 2185 assert_different_registers(cache, index, flags, off); | |
| 2186 | |
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2187 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2188 // Field offset |
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2189 __ movptr(off, Address(cache, index, Address::times_ptr, |
| 304 | 2190 in_bytes(cp_base_offset + |
| 2191 ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2192 // Flags |
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2193 __ movl(flags, Address(cache, index, Address::times_ptr, |
| 0 | 2194 in_bytes(cp_base_offset + |
| 2195 ConstantPoolCacheEntry::flags_offset()))); | |
| 2196 | |
| 2197 // klass overwrite register | |
| 2198 if (is_static) { | |
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2199 __ movptr(obj, Address(cache, index, Address::times_ptr, |
| 304 | 2200 in_bytes(cp_base_offset + |
| 2201 ConstantPoolCacheEntry::f1_offset()))); | |
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2202 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2203 __ movptr(obj, Address(obj, mirror_offset)); |
| 0 | 2204 } |
| 2205 } | |
| 2206 | |
| 2207 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2208 Register method, | |
| 2209 Register itable_index, | |
| 2210 Register flags, | |
| 2211 bool is_invokevirtual, | |
| 1565 | 2212 bool is_invokevfinal, /*unused*/ |
| 2213 bool is_invokedynamic) { | |
| 0 | 2214 // setup registers |
| 2215 const Register cache = rcx; | |
| 2216 const Register index = rdx; | |
| 2217 assert_different_registers(method, flags); | |
| 2218 assert_different_registers(method, cache, index); | |
| 2219 assert_different_registers(itable_index, flags); | |
| 2220 assert_different_registers(itable_index, cache, index); | |
| 2221 // determine constant pool cache field offsets | |
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2222 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2223 const int method_offset = in_bytes( |
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2224 ConstantPoolCache::base_offset() + |
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2225 ((byte_no == f2_byte) |
| 0 | 2226 ? ConstantPoolCacheEntry::f2_offset() |
| 2227 : ConstantPoolCacheEntry::f1_offset())); | |
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2228 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2229 ConstantPoolCacheEntry::flags_offset()); |
| 2230 // access constant pool cache fields | |
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2231 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2232 ConstantPoolCacheEntry::f2_offset()); |
| 2233 | |
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2234 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2235 resolve_cache_and_index(byte_no, cache, index, index_size); |
| 1565 | 2236 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2237 |
| 0 | 2238 if (itable_index != noreg) { |
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2239 // pick up itable or appendix index from f2 also: |
| 1565 | 2240 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
| 0 | 2241 } |
| 1565 | 2242 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
| 0 | 2243 } |
| 2244 | |
| 2245 // Correct values of the cache and index registers are preserved. | |
| 2246 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
| 2247 bool is_static, bool has_tos) { | |
| 2248 // do the JVMTI work here to avoid disturbing the register state below | |
| 2249 // We use c_rarg registers here because we want to use the register used in | |
| 2250 // the call to the VM | |
| 2251 if (JvmtiExport::can_post_field_access()) { | |
| 2252 // Check to see if a field access watch has been set before we | |
| 2253 // take the time to call into the VM. | |
| 2254 Label L1; | |
| 2255 assert_different_registers(cache, index, rax); | |
| 2256 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2257 __ testl(rax, rax); | |
| 2258 __ jcc(Assembler::zero, L1); | |
| 2259 | |
| 2260 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
| 2261 | |
| 2262 // cache entry pointer | |
|
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2263 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
| 0 | 2264 __ shll(c_rarg3, LogBytesPerWord); |
| 304 | 2265 __ addptr(c_rarg2, c_rarg3); |
| 0 | 2266 if (is_static) { |
| 2267 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
| 2268 } else { | |
| 304 | 2269 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
| 0 | 2270 __ verify_oop(c_rarg1); |
| 2271 } | |
| 2272 // c_rarg1: object pointer or NULL | |
| 2273 // c_rarg2: cache entry pointer | |
| 2274 // c_rarg3: jvalue object on the stack | |
| 2275 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 2276 InterpreterRuntime::post_field_access), | |
| 2277 c_rarg1, c_rarg2, c_rarg3); | |
| 2278 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2279 __ bind(L1); | |
| 2280 } | |
| 2281 } | |
| 2282 | |
| 2283 void TemplateTable::pop_and_check_object(Register r) { | |
| 2284 __ pop_ptr(r); | |
| 2285 __ null_check(r); // for field access must check obj. | |
| 2286 __ verify_oop(r); | |
| 2287 } | |
| 2288 | |
| 2289 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2290 transition(vtos, vtos); | |
| 2291 | |
| 2292 const Register cache = rcx; | |
| 2293 const Register index = rdx; | |
| 2294 const Register obj = c_rarg3; | |
| 2295 const Register off = rbx; | |
| 2296 const Register flags = rax; | |
| 2297 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
| 2298 | |
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2299 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2300 jvmti_post_field_access(cache, index, is_static, false); |
| 2301 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2302 | |
| 2303 if (!is_static) { | |
| 2304 // obj is on the stack | |
| 2305 pop_and_check_object(obj); | |
| 2306 } | |
| 2307 | |
| 2308 const Address field(obj, off, Address::times_1); | |
| 2309 | |
| 23614 | 2310 Label Done, notByte, notBool, notInt, notShort, notChar, |
| 0 | 2311 notLong, notFloat, notObj, notDouble; |
| 2312 | |
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2313 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2314 // Make sure we don't need to mask edx after the above shift |
| 0 | 2315 assert(btos == 0, "change code, btos != 0"); |
| 2316 | |
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2317 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2318 __ jcc(Assembler::notZero, notByte); |
| 2319 // btos | |
| 2320 __ load_signed_byte(rax, field); | |
| 2321 __ push(btos); | |
| 2322 // Rewrite bytecode to be faster | |
| 2323 if (!is_static) { | |
| 2324 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
| 2325 } | |
| 2326 __ jmp(Done); | |
| 2327 | |
| 2328 __ bind(notByte); | |
| 23614 | 2329 __ cmpl(flags, ztos); |
| 2330 __ jcc(Assembler::notEqual, notBool); | |
| 2331 | |
| 2332 // ztos (same code as btos) | |
| 2333 __ load_signed_byte(rax, field); | |
| 2334 __ push(ztos); | |
| 2335 // Rewrite bytecode to be faster | |
| 2336 if (!is_static) { | |
| 2337 // use btos rewriting, no truncating to t/f bit is needed for getfield. | |
| 2338 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
| 2339 } | |
| 2340 __ jmp(Done); | |
| 2341 | |
| 2342 __ bind(notBool); | |
| 0 | 2343 __ cmpl(flags, atos); |
| 2344 __ jcc(Assembler::notEqual, notObj); | |
| 2345 // atos | |
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2346 __ load_heap_oop(rax, field); |
| 0 | 2347 __ push(atos); |
| 2348 if (!is_static) { | |
| 2349 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
| 2350 } | |
| 2351 __ jmp(Done); | |
| 2352 | |
| 2353 __ bind(notObj); | |
| 2354 __ cmpl(flags, itos); | |
| 2355 __ jcc(Assembler::notEqual, notInt); | |
| 2356 // itos | |
| 2357 __ movl(rax, field); | |
| 2358 __ push(itos); | |
| 2359 // Rewrite bytecode to be faster | |
| 2360 if (!is_static) { | |
| 2361 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
| 2362 } | |
| 2363 __ jmp(Done); | |
| 2364 | |
| 2365 __ bind(notInt); | |
| 2366 __ cmpl(flags, ctos); | |
| 2367 __ jcc(Assembler::notEqual, notChar); | |
| 2368 // ctos | |
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2369 __ load_unsigned_short(rax, field); |
| 0 | 2370 __ push(ctos); |
| 2371 // Rewrite bytecode to be faster | |
| 2372 if (!is_static) { | |
| 2373 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
| 2374 } | |
| 2375 __ jmp(Done); | |
| 2376 | |
| 2377 __ bind(notChar); | |
| 2378 __ cmpl(flags, stos); | |
| 2379 __ jcc(Assembler::notEqual, notShort); | |
| 2380 // stos | |
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2381 __ load_signed_short(rax, field); |
| 0 | 2382 __ push(stos); |
| 2383 // Rewrite bytecode to be faster | |
| 2384 if (!is_static) { | |
| 2385 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
| 2386 } | |
| 2387 __ jmp(Done); | |
| 2388 | |
| 2389 __ bind(notShort); | |
| 2390 __ cmpl(flags, ltos); | |
| 2391 __ jcc(Assembler::notEqual, notLong); | |
| 2392 // ltos | |
| 2393 __ movq(rax, field); | |
| 2394 __ push(ltos); | |
| 2395 // Rewrite bytecode to be faster | |
| 2396 if (!is_static) { | |
| 2397 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
| 2398 } | |
| 2399 __ jmp(Done); | |
| 2400 | |
| 2401 __ bind(notLong); | |
| 2402 __ cmpl(flags, ftos); | |
| 2403 __ jcc(Assembler::notEqual, notFloat); | |
| 2404 // ftos | |
| 2405 __ movflt(xmm0, field); | |
| 2406 __ push(ftos); | |
| 2407 // Rewrite bytecode to be faster | |
| 2408 if (!is_static) { | |
| 2409 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
| 2410 } | |
| 2411 __ jmp(Done); | |
| 2412 | |
| 2413 __ bind(notFloat); | |
| 2414 #ifdef ASSERT | |
| 2415 __ cmpl(flags, dtos); | |
| 2416 __ jcc(Assembler::notEqual, notDouble); | |
| 2417 #endif | |
| 2418 // dtos | |
| 2419 __ movdbl(xmm0, field); | |
| 2420 __ push(dtos); | |
| 2421 // Rewrite bytecode to be faster | |
| 2422 if (!is_static) { | |
| 2423 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
| 2424 } | |
| 2425 #ifdef ASSERT | |
| 2426 __ jmp(Done); | |
| 2427 | |
| 2428 __ bind(notDouble); | |
| 2429 __ stop("Bad state"); | |
| 2430 #endif | |
| 2431 | |
| 2432 __ bind(Done); | |
| 2433 // [jk] not needed currently | |
| 2434 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
| 2435 // Assembler::LoadStore)); | |
| 2436 } | |
| 2437 | |
| 2438 | |
| 2439 void TemplateTable::getfield(int byte_no) { | |
| 2440 getfield_or_static(byte_no, false); | |
| 2441 } | |
| 2442 | |
| 2443 void TemplateTable::getstatic(int byte_no) { | |
| 2444 getfield_or_static(byte_no, true); | |
| 2445 } | |
| 2446 | |
| 2447 // The registers cache and index expected to be set before call. | |
| 2448 // The function may destroy various registers, just not the cache and index registers. | |
| 2449 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
| 2450 transition(vtos, vtos); | |
| 2451 | |
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2452 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2453 |
| 2454 if (JvmtiExport::can_post_field_modification()) { | |
| 2455 // Check to see if a field modification watch has been set before | |
| 2456 // we take the time to call into the VM. | |
| 2457 Label L1; | |
| 2458 assert_different_registers(cache, index, rax); | |
| 2459 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2460 __ testl(rax, rax); | |
| 2461 __ jcc(Assembler::zero, L1); | |
| 2462 | |
| 2463 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
| 2464 | |
| 2465 if (is_static) { | |
| 2466 // Life is simple. Null out the object pointer. | |
| 2467 __ xorl(c_rarg1, c_rarg1); | |
| 2468 } else { | |
| 2469 // Life is harder. The stack holds the value on top, followed by | |
| 2470 // the object. We don't know the size of the value, though; it | |
| 2471 // could be one or two words depending on its type. As a result, | |
| 2472 // we must find the type to determine where the object is. | |
| 2473 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
| 2474 Address::times_8, | |
| 2475 in_bytes(cp_base_offset + | |
| 2476 ConstantPoolCacheEntry::flags_offset()))); | |
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2477 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2478 // Make sure we don't need to mask rcx after the above shift |
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2479 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 2480 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
| 0 | 2481 __ cmpl(c_rarg3, ltos); |
| 304 | 2482 __ cmovptr(Assembler::equal, |
| 2483 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
| 0 | 2484 __ cmpl(c_rarg3, dtos); |
| 304 | 2485 __ cmovptr(Assembler::equal, |
| 2486 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
| 0 | 2487 } |
| 2488 // cache entry pointer | |
| 304 | 2489 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
| 0 | 2490 __ shll(rscratch1, LogBytesPerWord); |
| 304 | 2491 __ addptr(c_rarg2, rscratch1); |
| 0 | 2492 // object (tos) |
| 304 | 2493 __ mov(c_rarg3, rsp); |
| 0 | 2494 // c_rarg1: object pointer set up above (NULL if static) |
| 2495 // c_rarg2: cache entry pointer | |
| 2496 // c_rarg3: jvalue object on the stack | |
| 2497 __ call_VM(noreg, | |
| 2498 CAST_FROM_FN_PTR(address, | |
| 2499 InterpreterRuntime::post_field_modification), | |
| 2500 c_rarg1, c_rarg2, c_rarg3); | |
| 2501 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2502 __ bind(L1); | |
| 2503 } | |
| 2504 } | |
| 2505 | |
| 2506 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2507 transition(vtos, vtos); | |
| 2508 | |
| 2509 const Register cache = rcx; | |
| 2510 const Register index = rdx; | |
| 2511 const Register obj = rcx; | |
| 2512 const Register off = rbx; | |
| 2513 const Register flags = rax; | |
| 2514 const Register bc = c_rarg3; | |
| 2515 | |
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2516 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2517 jvmti_post_field_mod(cache, index, is_static); |
| 2518 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2519 | |
| 2520 // [jk] not needed currently | |
| 2521 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2522 // Assembler::StoreStore)); | |
| 2523 | |
| 2524 Label notVolatile, Done; | |
| 2525 __ movl(rdx, flags); | |
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2526 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2527 __ andl(rdx, 0x1); |
| 2528 | |
| 2529 // field address | |
| 2530 const Address field(obj, off, Address::times_1); | |
| 2531 | |
| 23614 | 2532 Label notByte, notBool, notInt, notShort, notChar, |
| 0 | 2533 notLong, notFloat, notObj, notDouble; |
| 2534 | |
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2535 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2536 |
| 2537 assert(btos == 0, "change code, btos != 0"); | |
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2538 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2539 __ jcc(Assembler::notZero, notByte); |
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2540 |
| 0 | 2541 // btos |
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2542 { |
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2543 __ pop(btos); |
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2544 if (!is_static) pop_and_check_object(obj); |
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2545 __ movb(field, rax); |
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2546 if (!is_static) { |
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2547 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2548 } |
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2549 __ jmp(Done); |
| 0 | 2550 } |
| 2551 | |
| 2552 __ bind(notByte); | |
| 23614 | 2553 __ cmpl(flags, ztos); |
| 2554 __ jcc(Assembler::notEqual, notBool); | |
| 2555 | |
| 2556 // ztos | |
| 2557 { | |
| 2558 __ pop(ztos); | |
| 2559 if (!is_static) pop_and_check_object(obj); | |
| 2560 __ andl(rax, 0x1); | |
| 2561 __ movb(field, rax); | |
| 2562 if (!is_static) { | |
| 2563 patch_bytecode(Bytecodes::_fast_zputfield, bc, rbx, true, byte_no); | |
| 2564 } | |
| 2565 __ jmp(Done); | |
| 2566 } | |
| 2567 | |
| 2568 __ bind(notBool); | |
| 0 | 2569 __ cmpl(flags, atos); |
| 2570 __ jcc(Assembler::notEqual, notObj); | |
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2571 |
| 0 | 2572 // atos |
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2573 { |
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2574 __ pop(atos); |
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2575 if (!is_static) pop_and_check_object(obj); |
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2576 // Store into the field |
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2577 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2578 if (!is_static) { |
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2579 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2580 } |
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2581 __ jmp(Done); |
| 0 | 2582 } |
| 2583 | |
| 2584 __ bind(notObj); | |
| 2585 __ cmpl(flags, itos); | |
| 2586 __ jcc(Assembler::notEqual, notInt); | |
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2587 |
| 0 | 2588 // itos |
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2589 { |
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2590 __ pop(itos); |
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2591 if (!is_static) pop_and_check_object(obj); |
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2592 __ movl(field, rax); |
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2593 if (!is_static) { |
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2594 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2595 } |
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2596 __ jmp(Done); |
| 0 | 2597 } |
| 2598 | |
| 2599 __ bind(notInt); | |
| 2600 __ cmpl(flags, ctos); | |
| 2601 __ jcc(Assembler::notEqual, notChar); | |
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2602 |
| 0 | 2603 // ctos |
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2604 { |
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2605 __ pop(ctos); |
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2606 if (!is_static) pop_and_check_object(obj); |
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|
2607 __ movw(field, rax); |
|
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|
2608 if (!is_static) { |
|
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|
2609 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
|
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|
2610 } |
|
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|
2611 __ jmp(Done); |
| 0 | 2612 } |
| 2613 | |
| 2614 __ bind(notChar); | |
| 2615 __ cmpl(flags, stos); | |
| 2616 __ jcc(Assembler::notEqual, notShort); | |
|
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|
2617 |
| 0 | 2618 // stos |
|
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|
2619 { |
|
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|
2620 __ pop(stos); |
|
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|
2621 if (!is_static) pop_and_check_object(obj); |
|
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|
2622 __ movw(field, rax); |
|
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|
2623 if (!is_static) { |
|
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|
2624 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
|
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|
2625 } |
|
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|
2626 __ jmp(Done); |
| 0 | 2627 } |
| 2628 | |
| 2629 __ bind(notShort); | |
| 2630 __ cmpl(flags, ltos); | |
| 2631 __ jcc(Assembler::notEqual, notLong); | |
|
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|
2632 |
| 0 | 2633 // ltos |
|
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|
2634 { |
|
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|
2635 __ pop(ltos); |
|
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|
2636 if (!is_static) pop_and_check_object(obj); |
|
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|
2637 __ movq(field, rax); |
|
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|
2638 if (!is_static) { |
|
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|
2639 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
|
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|
2640 } |
|
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|
2641 __ jmp(Done); |
| 0 | 2642 } |
| 2643 | |
| 2644 __ bind(notLong); | |
| 2645 __ cmpl(flags, ftos); | |
| 2646 __ jcc(Assembler::notEqual, notFloat); | |
|
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|
2647 |
| 0 | 2648 // ftos |
|
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|
2649 { |
|
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|
2650 __ pop(ftos); |
|
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|
2651 if (!is_static) pop_and_check_object(obj); |
|
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|
2652 __ movflt(field, xmm0); |
|
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|
2653 if (!is_static) { |
|
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|
2654 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
|
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|
2655 } |
|
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|
2656 __ jmp(Done); |
| 0 | 2657 } |
| 2658 | |
| 2659 __ bind(notFloat); | |
| 2660 #ifdef ASSERT | |
| 2661 __ cmpl(flags, dtos); | |
| 2662 __ jcc(Assembler::notEqual, notDouble); | |
| 2663 #endif | |
|
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|
2664 |
| 0 | 2665 // dtos |
|
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|
2666 { |
|
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|
2667 __ pop(dtos); |
|
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|
2668 if (!is_static) pop_and_check_object(obj); |
|
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|
2669 __ movdbl(field, xmm0); |
|
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|
2670 if (!is_static) { |
|
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|
2671 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
|
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|
2672 } |
| 0 | 2673 } |
| 2674 | |
| 2675 #ifdef ASSERT | |
| 2676 __ jmp(Done); | |
| 2677 | |
| 2678 __ bind(notDouble); | |
| 2679 __ stop("Bad state"); | |
| 2680 #endif | |
| 2681 | |
| 2682 __ bind(Done); | |
|
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|
2683 |
| 0 | 2684 // Check for volatile store |
| 2685 __ testl(rdx, rdx); | |
| 2686 __ jcc(Assembler::zero, notVolatile); | |
| 2687 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2688 Assembler::StoreStore)); | |
| 2689 __ bind(notVolatile); | |
| 2690 } | |
| 2691 | |
| 2692 void TemplateTable::putfield(int byte_no) { | |
| 2693 putfield_or_static(byte_no, false); | |
| 2694 } | |
| 2695 | |
| 2696 void TemplateTable::putstatic(int byte_no) { | |
| 2697 putfield_or_static(byte_no, true); | |
| 2698 } | |
| 2699 | |
| 2700 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2701 if (JvmtiExport::can_post_field_modification()) { | |
| 2702 // Check to see if a field modification watch has been set before | |
| 2703 // we take the time to call into the VM. | |
| 2704 Label L2; | |
| 2705 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2706 __ testl(c_rarg3, c_rarg3); | |
| 2707 __ jcc(Assembler::zero, L2); | |
| 2708 __ pop_ptr(rbx); // copy the object pointer from tos | |
| 2709 __ verify_oop(rbx); | |
| 2710 __ push_ptr(rbx); // put the object pointer back on tos | |
|
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|
2711 // Save tos values before call_VM() clobbers them. Since we have |
|
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2712 // to do it for every data type, we use the saved values as the |
|
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2713 // jvalue object. |
| 0 | 2714 switch (bytecode()) { // load values into the jvalue object |
|
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2715 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
|
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2716 case Bytecodes::_fast_bputfield: // fall through |
| 23614 | 2717 case Bytecodes::_fast_zputfield: // fall through |
| 0 | 2718 case Bytecodes::_fast_sputfield: // fall through |
|
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2719 case Bytecodes::_fast_cputfield: // fall through |
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2720 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
|
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2721 case Bytecodes::_fast_dputfield: __ push_d(); break; |
|
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2722 case Bytecodes::_fast_fputfield: __ push_f(); break; |
|
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2723 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
|
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2724 |
| 0 | 2725 default: |
| 2726 ShouldNotReachHere(); | |
| 2727 } | |
|
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|
2728 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
| 0 | 2729 // access constant pool cache entry |
| 2730 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
| 2731 __ verify_oop(rbx); | |
| 2732 // rbx: object pointer copied above | |
| 2733 // c_rarg2: cache entry pointer | |
| 2734 // c_rarg3: jvalue object on the stack | |
| 2735 __ call_VM(noreg, | |
| 2736 CAST_FROM_FN_PTR(address, | |
| 2737 InterpreterRuntime::post_field_modification), | |
| 2738 rbx, c_rarg2, c_rarg3); | |
|
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2739 |
|
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|
2740 switch (bytecode()) { // restore tos values |
|
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|
2741 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
|
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|
2742 case Bytecodes::_fast_bputfield: // fall through |
| 23614 | 2743 case Bytecodes::_fast_zputfield: // fall through |
|
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|
2744 case Bytecodes::_fast_sputfield: // fall through |
|
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|
2745 case Bytecodes::_fast_cputfield: // fall through |
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|
2746 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
|
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|
2747 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
|
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|
2748 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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|
2749 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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|
2750 } |
| 0 | 2751 __ bind(L2); |
| 2752 } | |
| 2753 } | |
| 2754 | |
| 2755 void TemplateTable::fast_storefield(TosState state) { | |
| 2756 transition(state, vtos); | |
| 2757 | |
|
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|
2758 ByteSize base = ConstantPoolCache::base_offset(); |
| 0 | 2759 |
| 2760 jvmti_post_fast_field_mod(); | |
| 2761 | |
| 2762 // access constant pool cache | |
| 2763 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2764 | |
| 2765 // test for volatile with rdx | |
| 2766 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
| 2767 in_bytes(base + | |
| 2768 ConstantPoolCacheEntry::flags_offset()))); | |
| 2769 | |
| 2770 // replace index with field offset from cache entry | |
| 304 | 2771 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
| 2772 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2773 |
| 2774 // [jk] not needed currently | |
| 2775 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2776 // Assembler::StoreStore)); | |
| 2777 | |
| 2778 Label notVolatile; | |
|
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|
2779 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2780 __ andl(rdx, 0x1); |
| 2781 | |
| 2782 // Get object from stack | |
| 2783 pop_and_check_object(rcx); | |
| 2784 | |
| 2785 // field address | |
| 2786 const Address field(rcx, rbx, Address::times_1); | |
| 2787 | |
| 2788 // access field | |
| 2789 switch (bytecode()) { | |
| 2790 case Bytecodes::_fast_aputfield: | |
|
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|
2791 do_oop_store(_masm, field, rax, _bs->kind(), false); |
| 0 | 2792 break; |
| 2793 case Bytecodes::_fast_lputfield: | |
| 2794 __ movq(field, rax); | |
| 2795 break; | |
| 2796 case Bytecodes::_fast_iputfield: | |
| 2797 __ movl(field, rax); | |
| 2798 break; | |
| 23614 | 2799 case Bytecodes::_fast_zputfield: |
| 2800 __ andl(rax, 0x1); // boolean is true if LSB is 1 | |
| 2801 // fall through to bputfield | |
| 0 | 2802 case Bytecodes::_fast_bputfield: |
| 2803 __ movb(field, rax); | |
| 2804 break; | |
| 2805 case Bytecodes::_fast_sputfield: | |
| 2806 // fall through | |
| 2807 case Bytecodes::_fast_cputfield: | |
| 2808 __ movw(field, rax); | |
| 2809 break; | |
| 2810 case Bytecodes::_fast_fputfield: | |
| 2811 __ movflt(field, xmm0); | |
| 2812 break; | |
| 2813 case Bytecodes::_fast_dputfield: | |
| 2814 __ movdbl(field, xmm0); | |
| 2815 break; | |
| 2816 default: | |
| 2817 ShouldNotReachHere(); | |
| 2818 } | |
| 2819 | |
| 2820 // Check for volatile store | |
| 2821 __ testl(rdx, rdx); | |
| 2822 __ jcc(Assembler::zero, notVolatile); | |
| 2823 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2824 Assembler::StoreStore)); | |
| 2825 __ bind(notVolatile); | |
| 2826 } | |
| 2827 | |
| 2828 | |
| 2829 void TemplateTable::fast_accessfield(TosState state) { | |
| 2830 transition(atos, state); | |
| 2831 | |
| 2832 // Do the JVMTI work here to avoid disturbing the register state below | |
| 2833 if (JvmtiExport::can_post_field_access()) { | |
| 2834 // Check to see if a field access watch has been set before we | |
| 2835 // take the time to call into the VM. | |
| 2836 Label L1; | |
| 2837 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2838 __ testl(rcx, rcx); | |
| 2839 __ jcc(Assembler::zero, L1); | |
| 2840 // access constant pool cache entry | |
| 2841 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
|
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|
2842 __ verify_oop(rax); |
|
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|
2843 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
| 304 | 2844 __ mov(c_rarg1, rax); |
| 0 | 2845 // c_rarg1: object pointer copied above |
| 2846 // c_rarg2: cache entry pointer | |
| 2847 __ call_VM(noreg, | |
| 2848 CAST_FROM_FN_PTR(address, | |
| 2849 InterpreterRuntime::post_field_access), | |
| 2850 c_rarg1, c_rarg2); | |
|
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|
2851 __ pop_ptr(rax); // restore object pointer |
| 0 | 2852 __ bind(L1); |
| 2853 } | |
| 2854 | |
| 2855 // access constant pool cache | |
| 2856 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2857 // replace index with field offset from cache entry | |
| 2858 // [jk] not needed currently | |
| 2859 // if (os::is_MP()) { | |
| 2860 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
|
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|
2861 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2862 // ConstantPoolCacheEntry::flags_offset()))); |
|
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|
2863 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2864 // __ andl(rdx, 0x1); |
| 2865 // } | |
| 304 | 2866 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
|
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|
2867 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2868 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2869 |
| 2870 // rax: object | |
| 2871 __ verify_oop(rax); | |
| 2872 __ null_check(rax); | |
| 2873 Address field(rax, rbx, Address::times_1); | |
| 2874 | |
| 2875 // access field | |
| 2876 switch (bytecode()) { | |
| 2877 case Bytecodes::_fast_agetfield: | |
|
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2878 __ load_heap_oop(rax, field); |
| 0 | 2879 __ verify_oop(rax); |
| 2880 break; | |
| 2881 case Bytecodes::_fast_lgetfield: | |
| 2882 __ movq(rax, field); | |
| 2883 break; | |
| 2884 case Bytecodes::_fast_igetfield: | |
| 2885 __ movl(rax, field); | |
| 2886 break; | |
| 2887 case Bytecodes::_fast_bgetfield: | |
| 2888 __ movsbl(rax, field); | |
| 2889 break; | |
| 2890 case Bytecodes::_fast_sgetfield: | |
|
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2891 __ load_signed_short(rax, field); |
| 0 | 2892 break; |
| 2893 case Bytecodes::_fast_cgetfield: | |
|
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2894 __ load_unsigned_short(rax, field); |
| 0 | 2895 break; |
| 2896 case Bytecodes::_fast_fgetfield: | |
| 2897 __ movflt(xmm0, field); | |
| 2898 break; | |
| 2899 case Bytecodes::_fast_dgetfield: | |
| 2900 __ movdbl(xmm0, field); | |
| 2901 break; | |
| 2902 default: | |
| 2903 ShouldNotReachHere(); | |
| 2904 } | |
| 2905 // [jk] not needed currently | |
| 2906 // if (os::is_MP()) { | |
| 2907 // Label notVolatile; | |
| 2908 // __ testl(rdx, rdx); | |
| 2909 // __ jcc(Assembler::zero, notVolatile); | |
| 2910 // __ membar(Assembler::LoadLoad); | |
| 2911 // __ bind(notVolatile); | |
| 2912 //}; | |
| 2913 } | |
| 2914 | |
| 2915 void TemplateTable::fast_xaccess(TosState state) { | |
| 2916 transition(vtos, state); | |
| 2917 | |
| 2918 // get receiver | |
| 304 | 2919 __ movptr(rax, aaddress(0)); |
| 0 | 2920 // access constant pool cache |
| 2921 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
| 304 | 2922 __ movptr(rbx, |
| 2923 Address(rcx, rdx, Address::times_8, | |
|
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2924 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2925 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2926 // make sure exception is reported in correct bcp range (getfield is |
| 2927 // next instruction) | |
| 304 | 2928 __ increment(r13); |
| 0 | 2929 __ null_check(rax); |
| 2930 switch (state) { | |
| 2931 case itos: | |
| 2932 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
| 2933 break; | |
| 2934 case atos: | |
|
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2935 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
| 0 | 2936 __ verify_oop(rax); |
| 2937 break; | |
| 2938 case ftos: | |
| 2939 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
| 2940 break; | |
| 2941 default: | |
| 2942 ShouldNotReachHere(); | |
| 2943 } | |
| 2944 | |
| 2945 // [jk] not needed currently | |
| 2946 // if (os::is_MP()) { | |
| 2947 // Label notVolatile; | |
| 2948 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
|
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2949 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2950 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2951 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2952 // __ testl(rdx, 0x1); |
| 2953 // __ jcc(Assembler::zero, notVolatile); | |
| 2954 // __ membar(Assembler::LoadLoad); | |
| 2955 // __ bind(notVolatile); | |
| 2956 // } | |
| 2957 | |
| 304 | 2958 __ decrement(r13); |
| 0 | 2959 } |
| 2960 | |
| 2961 | |
| 2962 | |
| 2963 //----------------------------------------------------------------------------- | |
| 2964 // Calls | |
| 2965 | |
| 2966 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2967 // implemented elsewhere | |
| 2968 ShouldNotReachHere(); | |
| 2969 } | |
| 2970 | |
|
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2971 void TemplateTable::prepare_invoke(int byte_no, |
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2972 Register method, // linked method (or i-klass) |
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2973 Register index, // itable index, MethodType, etc. |
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2974 Register recv, // if caller wants to see it |
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2975 Register flags // if caller wants to test it |
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2976 ) { |
| 0 | 2977 // determine flags |
|
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2978 const Bytecodes::Code code = bytecode(); |
| 0 | 2979 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
| 1108 | 2980 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
|
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2981 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
| 0 | 2982 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
| 2983 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
|
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2984 const bool load_receiver = (recv != noreg); |
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2985 const bool save_flags = (flags != noreg); |
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2986 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
|
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2987 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
|
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2988 assert(flags == noreg || flags == rdx, ""); |
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2989 assert(recv == noreg || recv == rcx, ""); |
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2990 |
| 0 | 2991 // setup registers & access constant pool cache |
|
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2992 if (recv == noreg) recv = rcx; |
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2993 if (flags == noreg) flags = rdx; |
| 0 | 2994 assert_different_registers(method, index, recv, flags); |
| 2995 | |
| 2996 // save 'interpreter return address' | |
| 2997 __ save_bcp(); | |
| 2998 | |
| 1565 | 2999 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
| 0 | 3000 |
|
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3001 // maybe push appendix to arguments (just before return address) |
|
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3002 if (is_invokedynamic || is_invokehandle) { |
|
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3003 Label L_no_push; |
|
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3004 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
|
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3005 __ jcc(Assembler::zero, L_no_push); |
|
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3006 // Push the appendix as a trailing parameter. |
|
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3007 // This must be done before we get the receiver, |
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3008 // since the parameter_size includes it. |
|
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3009 __ push(rbx); |
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3010 __ mov(rbx, index); |
|
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|
3011 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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3012 __ load_resolved_reference_at_index(index, rbx); |
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3013 __ pop(rbx); |
|
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3014 __ push(index); // push appendix (MethodType, CallSite, etc.) |
|
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3015 __ bind(L_no_push); |
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3016 } |
|
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3017 |
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3018 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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3019 // Note: no return address pushed yet |
| 0 | 3020 if (load_receiver) { |
| 3021 __ movl(recv, flags); | |
|
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3022 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
|
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3023 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
|
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3024 const int receiver_is_at_end = -1; // back off one slot to get receiver |
|
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|
3025 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
| 1304 | 3026 __ movptr(recv, recv_addr); |
| 3027 __ verify_oop(recv); | |
| 0 | 3028 } |
| 3029 | |
| 3030 if (save_flags) { | |
| 3031 __ movl(r13, flags); | |
| 3032 } | |
| 3033 | |
| 3034 // compute return type | |
|
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3035 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
|
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|
3036 // Make sure we don't need to mask flags after the above shift |
|
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|
3037 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3038 // load return address |
| 3039 { | |
|
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|
3040 const address table_addr = (address) Interpreter::invoke_return_entry_table_for(code); |
| 1108 | 3041 ExternalAddress table(table_addr); |
| 3042 __ lea(rscratch1, table); | |
| 3043 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
| 0 | 3044 } |
| 3045 | |
| 3046 // push return address | |
| 304 | 3047 __ push(flags); |
| 0 | 3048 |
|
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|
3049 // Restore flags value from the constant pool cache, and restore rsi |
| 0 | 3050 // for later null checks. r13 is the bytecode pointer |
| 3051 if (save_flags) { | |
| 3052 __ movl(flags, r13); | |
| 3053 __ restore_bcp(); | |
| 3054 } | |
| 3055 } | |
| 3056 | |
| 3057 | |
| 3058 void TemplateTable::invokevirtual_helper(Register index, | |
| 3059 Register recv, | |
| 3060 Register flags) { | |
| 1783 | 3061 // Uses temporary registers rax, rdx |
| 3062 assert_different_registers(index, recv, rax, rdx); | |
|
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|
3063 assert(index == rbx, ""); |
|
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|
3064 assert(recv == rcx, ""); |
| 0 | 3065 |
| 3066 // Test for an invoke of a final method | |
| 3067 Label notFinal; | |
| 3068 __ movl(rax, flags); | |
|
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|
3069 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
| 0 | 3070 __ jcc(Assembler::zero, notFinal); |
| 3071 | |
| 3072 const Register method = index; // method must be rbx | |
| 3073 assert(method == rbx, | |
|
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3074 "Method* must be rbx for interpreter calling convention"); |
| 0 | 3075 |
| 3076 // do the call - the index is actually the method to call | |
|
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3077 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
| 0 | 3078 |
| 3079 // It's final, need a null check here! | |
| 3080 __ null_check(recv); | |
| 3081 | |
| 3082 // profile this call | |
| 3083 __ profile_final_call(rax); | |
|
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3084 __ profile_arguments_type(rax, method, r13, true); |
| 0 | 3085 |
| 3086 __ jump_from_interpreted(method, rax); | |
| 3087 | |
| 3088 __ bind(notFinal); | |
| 3089 | |
| 3090 // get receiver klass | |
| 3091 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
|
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3092 __ load_klass(rax, recv); |
| 0 | 3093 |
| 3094 // profile this call | |
| 3095 __ profile_virtual_call(rax, r14, rdx); | |
| 3096 | |
|
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3097 // get target Method* & entry point |
|
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|
3098 __ lookup_virtual_method(rax, index, method); |
|
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3099 __ profile_arguments_type(rdx, method, r13, true); |
| 0 | 3100 __ jump_from_interpreted(method, rdx); |
| 3101 } | |
| 3102 | |
| 3103 | |
| 3104 void TemplateTable::invokevirtual(int byte_no) { | |
| 3105 transition(vtos, vtos); | |
| 1565 | 3106 assert(byte_no == f2_byte, "use this argument"); |
|
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|
3107 prepare_invoke(byte_no, |
|
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|
3108 rbx, // method or vtable index |
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3109 noreg, // unused itable index |
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|
3110 rcx, rdx); // recv, flags |
| 0 | 3111 |
| 3112 // rbx: index | |
| 3113 // rcx: receiver | |
| 3114 // rdx: flags | |
| 3115 | |
| 3116 invokevirtual_helper(rbx, rcx, rdx); | |
| 3117 } | |
| 3118 | |
| 3119 | |
| 3120 void TemplateTable::invokespecial(int byte_no) { | |
| 3121 transition(vtos, vtos); | |
| 1565 | 3122 assert(byte_no == f1_byte, "use this argument"); |
|
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3123 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
|
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|
3124 rcx); // get receiver also for null check |
|
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|
3125 __ verify_oop(rcx); |
|
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|
3126 __ null_check(rcx); |
| 0 | 3127 // do the call |
| 3128 __ profile_call(rax); | |
|
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|
3129 __ profile_arguments_type(rax, rbx, r13, false); |
| 0 | 3130 __ jump_from_interpreted(rbx, rax); |
| 3131 } | |
| 3132 | |
| 3133 | |
| 3134 void TemplateTable::invokestatic(int byte_no) { | |
| 3135 transition(vtos, vtos); | |
| 1565 | 3136 assert(byte_no == f1_byte, "use this argument"); |
|
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3137 prepare_invoke(byte_no, rbx); // get f1 Method* |
| 0 | 3138 // do the call |
| 3139 __ profile_call(rax); | |
|
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|
3140 __ profile_arguments_type(rax, rbx, r13, false); |
| 0 | 3141 __ jump_from_interpreted(rbx, rax); |
| 3142 } | |
| 3143 | |
| 3144 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3145 transition(vtos, vtos); | |
| 1565 | 3146 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3147 __ stop("fast_invokevfinal not used on amd64"); |
| 3148 } | |
| 3149 | |
| 3150 void TemplateTable::invokeinterface(int byte_no) { | |
| 3151 transition(vtos, vtos); | |
| 1565 | 3152 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3153 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
|
6266
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|
3154 rcx, rdx); // recv, flags |
|
1d7922586cf6
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|
3155 |
|
1d7922586cf6
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|
3156 // rax: interface klass (from f1) |
|
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|
3157 // rbx: itable index (from f2) |
| 0 | 3158 // rcx: receiver |
| 3159 // rdx: flags | |
| 3160 | |
| 3161 // Special case of invokeinterface called for virtual method of | |
| 3162 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3163 // This code isn't produced by javac, but could be produced by | |
| 3164 // another compliant java compiler. | |
| 3165 Label notMethod; | |
| 3166 __ movl(r14, rdx); | |
|
6266
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changeset
|
3167 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
| 0 | 3168 __ jcc(Assembler::zero, notMethod); |
| 3169 | |
| 3170 invokevirtual_helper(rbx, rcx, rdx); | |
| 3171 __ bind(notMethod); | |
| 3172 | |
| 3173 // Get receiver klass into rdx - also a null check | |
|
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|
3174 __ restore_locals(); // restore r14 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
3175 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
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diff
changeset
|
3176 __ load_klass(rdx, rcx); |
| 0 | 3177 |
| 3178 // profile this call | |
| 3179 __ profile_virtual_call(rdx, r13, r14); | |
| 3180 | |
|
623
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|
3181 Label no_such_interface, no_such_method; |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3182 |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3183 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3184 rdx, rax, rbx, |
|
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|
3185 // outputs: method, scan temp. reg |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3186 rbx, r13, |
|
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|
3187 no_such_interface); |
|
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|
3188 |
|
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|
3189 // rbx: Method* to call |
|
623
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|
3190 // rcx: receiver |
|
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|
3191 // Check for abstract method error |
|
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|
3192 // Note: This should be done more efficiently via a throw_abstract_method_error |
|
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|
3193 // interpreter entry point and a conditional jump to it in case of a null |
|
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|
3194 // method. |
|
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|
3195 __ testptr(rbx, rbx); |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3196 __ jcc(Assembler::zero, no_such_method); |
|
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|
3197 |
|
12875
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|
3198 __ profile_arguments_type(rdx, rbx, r13, true); |
|
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diff
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|
3199 |
|
623
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|
3200 // do the call |
|
9adddb8c0fc8
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|
3201 // rcx: receiver |
|
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|
3202 // rbx,: Method* |
|
623
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|
3203 __ jump_from_interpreted(rbx, rdx); |
|
9adddb8c0fc8
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|
3204 __ should_not_reach_here(); |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3205 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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changeset
|
3206 // exception handling code follows... |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3207 // note: must restore interpreter registers to canonical |
|
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3208 // state for exception handling to work correctly! |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3209 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
diff
changeset
|
3210 __ bind(no_such_method); |
| 0 | 3211 // throw exception |
|
623
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3212 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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changeset
|
3213 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3214 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3215 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3216 // the call_VM checks for exception, so we should never return here. |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3217 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3218 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3219 __ bind(no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
diff
changeset
|
3220 // throw exception |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
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622
diff
changeset
|
3221 __ 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
|
3222 __ 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
|
3223 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
| 0 | 3224 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
| 3225 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3226 // the call_VM checks for exception, so we should never return here. | |
| 3227 __ should_not_reach_here(); | |
| 3228 } | |
| 3229 | |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3230 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3231 void TemplateTable::invokehandle(int byte_no) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
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|
3232 transition(vtos, vtos); |
|
6725
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|
3233 assert(byte_no == f1_byte, "use this argument"); |
|
6822
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|
3234 const Register rbx_method = rbx; |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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|
3235 const Register rax_mtype = rax; |
|
6266
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|
3236 const Register rcx_recv = rcx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3237 const Register rdx_flags = rdx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3238 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3239 if (!EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3240 // rewriter does not generate this bytecode |
|
1d7922586cf6
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diff
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|
3241 __ should_not_reach_here(); |
|
1d7922586cf6
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twisti
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5995
diff
changeset
|
3242 return; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3243 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3244 |
|
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
|
3245 prepare_invoke(byte_no, rbx_method, rax_mtype, rcx_recv); |
|
6740
75f33eecc1b3
7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
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6725
diff
changeset
|
3246 __ verify_method_ptr(rbx_method); |
|
6266
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diff
changeset
|
3247 __ verify_oop(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3248 __ null_check(rcx_recv); |
|
1d7922586cf6
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5995
diff
changeset
|
3249 |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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6740
diff
changeset
|
3250 // rax: MethodType object (from cpool->resolved_references[f1], if necessary) |
|
f6b0eb4e44cf
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diff
changeset
|
3251 // rbx: MH.invokeExact_MT method (from f2) |
|
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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diff
changeset
|
3252 |
|
6266
1d7922586cf6
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diff
changeset
|
3253 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3254 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3255 // FIXME: profile the LambdaForm also |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3256 __ profile_final_call(rax); |
|
12875
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|
3257 __ profile_arguments_type(rdx, rbx_method, r13, true); |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3258 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3259 __ jump_from_interpreted(rbx_method, rdx); |
|
1d7922586cf6
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5995
diff
changeset
|
3260 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3261 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3262 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
changeset
|
3263 void TemplateTable::invokedynamic(int byte_no) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
3264 transition(vtos, vtos); |
|
6725
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|
3265 assert(byte_no == f1_byte, "use this argument"); |
|
726
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diff
changeset
|
3266 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
diff
changeset
|
3267 if (!EnableInvokeDynamic) { |
|
be93aad57795
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623
diff
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|
3268 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
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diff
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|
3269 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
diff
changeset
|
3270 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
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changeset
|
3271 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
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623
diff
changeset
|
3272 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
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623
diff
changeset
|
3273 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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623
diff
changeset
|
3274 __ should_not_reach_here(); |
|
be93aad57795
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623
diff
changeset
|
3275 return; |
|
be93aad57795
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623
diff
changeset
|
3276 } |
|
be93aad57795
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623
diff
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|
3277 |
|
6266
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|
3278 const Register rbx_method = rbx; |
|
1d7922586cf6
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|
3279 const Register rax_callsite = rax; |
|
1d7922586cf6
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diff
changeset
|
3280 |
|
1d7922586cf6
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5995
diff
changeset
|
3281 prepare_invoke(byte_no, rbx_method, rax_callsite); |
|
1d7922586cf6
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5995
diff
changeset
|
3282 |
|
6822
f6b0eb4e44cf
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diff
changeset
|
3283 // rax: CallSite object (from cpool->resolved_references[f1]) |
|
6266
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changeset
|
3284 // rbx: MH.linkToCallSite method (from f2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
3285 |
|
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|
3286 // Note: rax_callsite is already pushed by prepare_invoke |
| 1846 | 3287 |
|
3279
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diff
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|
3288 // %%% 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
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diff
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|
3289 // profile this call |
|
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changeset
|
3290 __ profile_call(r13); |
|
12875
d13d7aba8c12
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diff
changeset
|
3291 __ profile_arguments_type(rdx, rbx_method, r13, false); |
|
3279
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|
3292 |
|
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|
3293 __ verify_oop(rax_callsite); |
|
6266
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|
3294 |
|
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|
3295 __ jump_from_interpreted(rbx_method, rdx); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
3296 } |
|
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6655646: dynamic languages need dynamically linked call sites
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|
3297 |
|
623
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6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3298 |
| 0 | 3299 //----------------------------------------------------------------------------- |
| 3300 // Allocation | |
| 3301 | |
| 3302 void TemplateTable::_new() { | |
| 3303 transition(vtos, atos); | |
| 3304 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3305 Label slow_case; | |
| 3306 Label done; | |
| 3307 Label initialize_header; | |
| 3308 Label initialize_object; // including clearing the fields | |
| 3309 Label allocate_shared; | |
| 3310 | |
| 3311 __ get_cpool_and_tags(rsi, rax); | |
|
1681
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bobv
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1602
diff
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|
3312 // Make sure the class we're about to instantiate has been resolved. |
|
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3313 // This is done before loading InstanceKlass to be consistent with the order |
|
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|
3314 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
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|
3315 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 3316 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
| 3317 JVM_CONSTANT_Class); | |
| 3318 __ jcc(Assembler::notEqual, slow_case); | |
| 3319 | |
|
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|
3320 // get InstanceKlass |
|
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|
3321 __ movptr(rsi, Address(rsi, rdx, |
|
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|
3322 Address::times_8, sizeof(ConstantPool))); |
|
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|
3323 |
| 0 | 3324 // make sure klass is initialized & doesn't have finalizer |
| 3325 // make sure klass is fully initialized | |
|
4739
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7117052: instanceKlass::_init_state can be u1 type
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|
3326 __ cmpb(Address(rsi, |
|
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|
3327 InstanceKlass::init_state_offset()), |
|
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|
3328 InstanceKlass::fully_initialized); |
| 0 | 3329 __ jcc(Assembler::notEqual, slow_case); |
| 3330 | |
|
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|
3331 // get instance_size in InstanceKlass (scaled to a count of bytes) |
| 0 | 3332 __ movl(rdx, |
| 3333 Address(rsi, | |
|
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|
3334 Klass::layout_helper_offset())); |
| 0 | 3335 // test to see if it has a finalizer or is malformed in some way |
| 3336 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
| 3337 __ jcc(Assembler::notZero, slow_case); | |
| 3338 | |
| 3339 // Allocate the instance | |
| 3340 // 1) Try to allocate in the TLAB | |
| 3341 // 2) if fail and the object is large allocate in the shared Eden | |
| 3342 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3343 // (creates a new TLAB, etc.) | |
| 3344 | |
| 3345 const bool allow_shared_alloc = | |
| 3346 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3347 | |
| 3348 if (UseTLAB) { | |
| 304 | 3349 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
| 3350 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3351 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
| 0 | 3352 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
| 304 | 3353 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
| 0 | 3354 if (ZeroTLAB) { |
| 3355 // the fields have been already cleared | |
| 3356 __ jmp(initialize_header); | |
| 3357 } else { | |
| 3358 // initialize both the header and fields | |
| 3359 __ jmp(initialize_object); | |
| 3360 } | |
| 3361 } | |
| 3362 | |
| 3363 // Allocation in the shared Eden, if allowed. | |
| 3364 // | |
| 3365 // rdx: instance size in bytes | |
| 3366 if (allow_shared_alloc) { | |
| 3367 __ bind(allocate_shared); | |
| 3368 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
3369 ExternalAddress top((address)Universe::heap()->top_addr()); |
|
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|
3370 ExternalAddress end((address)Universe::heap()->end_addr()); |
|
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|
3371 |
| 0 | 3372 const Register RtopAddr = rscratch1; |
| 3373 const Register RendAddr = rscratch2; | |
| 3374 | |
| 3375 __ lea(RtopAddr, top); | |
| 3376 __ lea(RendAddr, end); | |
| 304 | 3377 __ movptr(rax, Address(RtopAddr, 0)); |
| 0 | 3378 |
| 3379 // For retries rax gets set by cmpxchgq | |
| 3380 Label retry; | |
| 3381 __ bind(retry); | |
| 304 | 3382 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
| 3383 __ cmpptr(rbx, Address(RendAddr, 0)); | |
| 0 | 3384 __ jcc(Assembler::above, slow_case); |
| 3385 | |
| 3386 // Compare rax with the top addr, and if still equal, store the new | |
| 3387 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
| 3388 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
| 3389 // | |
| 3390 // rax: object begin | |
| 3391 // rbx: object end | |
| 3392 // rdx: instance size in bytes | |
| 3393 if (os::is_MP()) { | |
| 3394 __ lock(); | |
| 3395 } | |
| 304 | 3396 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
| 0 | 3397 |
| 3398 // if someone beat us on the allocation, try again, otherwise continue | |
| 3399 __ jcc(Assembler::notEqual, retry); | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
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|
3400 |
|
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diff
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|
3401 __ incr_allocated_bytes(r15_thread, rdx, 0); |
| 0 | 3402 } |
| 3403 | |
| 3404 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3405 // The object is initialized before the header. If the object size is | |
| 3406 // zero, go directly to the header initialization. | |
| 3407 __ bind(initialize_object); | |
| 3408 __ decrementl(rdx, sizeof(oopDesc)); | |
| 3409 __ jcc(Assembler::zero, initialize_header); | |
| 3410 | |
| 3411 // Initialize object fields | |
| 3412 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
| 3413 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
| 3414 { | |
| 3415 Label loop; | |
| 3416 __ bind(loop); | |
| 3417 __ movq(Address(rax, rdx, Address::times_8, | |
| 3418 sizeof(oopDesc) - oopSize), | |
| 3419 rcx); | |
| 3420 __ decrementl(rdx); | |
| 3421 __ jcc(Assembler::notZero, loop); | |
| 3422 } | |
| 3423 | |
| 3424 // initialize object header only. | |
| 3425 __ bind(initialize_header); | |
| 3426 if (UseBiasedLocking) { | |
|
4762
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diff
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|
3427 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
| 304 | 3428 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
| 0 | 3429 } else { |
| 3430 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
| 3431 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
| 3432 } | |
|
167
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
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113
diff
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|
3433 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
|
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
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113
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|
3434 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
|
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
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diff
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|
3435 __ store_klass(rax, rsi); // store klass last |
|
1248
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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1108
diff
changeset
|
3436 |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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diff
changeset
|
3437 { |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3438 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3439 // Trigger dtrace event for fastpath |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3440 __ push(atos); // save the return value |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
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|
3441 __ call_VM_leaf( |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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1108
diff
changeset
|
3442 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3443 __ pop(atos); // restore the return value |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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1108
diff
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|
3444 |
|
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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diff
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|
3445 } |
| 0 | 3446 __ jmp(done); |
| 3447 } | |
| 3448 | |
| 3449 | |
| 3450 // slow case | |
| 3451 __ bind(slow_case); | |
| 3452 __ get_constant_pool(c_rarg1); | |
| 3453 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3454 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
| 3455 __ verify_oop(rax); | |
| 3456 | |
| 3457 // continue | |
| 3458 __ bind(done); | |
| 3459 } | |
| 3460 | |
| 3461 void TemplateTable::newarray() { | |
| 3462 transition(itos, atos); | |
| 3463 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
| 3464 __ movl(c_rarg2, rax); | |
| 3465 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
| 3466 c_rarg1, c_rarg2); | |
| 3467 } | |
| 3468 | |
| 3469 void TemplateTable::anewarray() { | |
| 3470 transition(itos, atos); | |
| 3471 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3472 __ get_constant_pool(c_rarg1); | |
| 3473 __ movl(c_rarg3, rax); | |
| 3474 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
| 3475 c_rarg1, c_rarg2, c_rarg3); | |
| 3476 } | |
| 3477 | |
| 3478 void TemplateTable::arraylength() { | |
| 3479 transition(atos, itos); | |
| 3480 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
| 3481 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
| 3482 } | |
| 3483 | |
| 3484 void TemplateTable::checkcast() { | |
| 3485 transition(atos, atos); | |
| 3486 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3487 __ testptr(rax, rax); // object is in rax |
| 0 | 3488 __ jcc(Assembler::zero, is_null); |
| 3489 | |
| 3490 // Get cpool & tags index | |
| 3491 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3492 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3493 // See if bytecode has already been quicked | |
| 3494 __ cmpb(Address(rdx, rbx, | |
| 3495 Address::times_1, | |
|
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|
3496 Array<u1>::base_offset_in_bytes()), |
| 0 | 3497 JVM_CONSTANT_Class); |
| 3498 __ jcc(Assembler::equal, quicked); | |
|
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|
3499 __ push(atos); // save receiver for result, and for GC |
|
6725
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6266
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changeset
|
3500 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
|
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|
3501 // vm_result_2 has metadata result |
|
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|
3502 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3503 __ pop_ptr(rdx); // restore receiver |
| 3504 __ jmpb(resolved); | |
| 3505 | |
| 3506 // Get superklass in rax and subklass in rbx | |
| 3507 __ bind(quicked); | |
| 304 | 3508 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
| 3509 __ movptr(rax, Address(rcx, rbx, | |
|
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|
3510 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3511 |
| 3512 __ bind(resolved); | |
|
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|
3513 __ load_klass(rbx, rdx); |
| 0 | 3514 |
| 3515 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
| 3516 // Superklass in rax. Subklass in rbx. | |
| 3517 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 3518 | |
| 3519 // Come here on failure | |
| 3520 __ push_ptr(rdx); | |
| 3521 // object is at TOS | |
| 3522 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
| 3523 | |
| 3524 // Come here on success | |
| 3525 __ bind(ok_is_subtype); | |
| 304 | 3526 __ mov(rax, rdx); // Restore object in rdx |
| 0 | 3527 |
| 3528 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
| 3529 if (ProfileInterpreter) { | |
| 3530 __ jmp(done); | |
| 3531 __ bind(is_null); | |
| 3532 __ profile_null_seen(rcx); | |
| 3533 } else { | |
| 3534 __ bind(is_null); // same as 'done' | |
| 3535 } | |
| 3536 __ bind(done); | |
| 3537 } | |
| 3538 | |
| 3539 void TemplateTable::instanceof() { | |
| 3540 transition(atos, itos); | |
| 3541 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3542 __ testptr(rax, rax); |
| 0 | 3543 __ jcc(Assembler::zero, is_null); |
| 3544 | |
| 3545 // Get cpool & tags index | |
| 3546 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3547 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3548 // See if bytecode has already been quicked | |
| 3549 __ cmpb(Address(rdx, rbx, | |
| 3550 Address::times_1, | |
|
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|
3551 Array<u1>::base_offset_in_bytes()), |
| 0 | 3552 JVM_CONSTANT_Class); |
| 3553 __ jcc(Assembler::equal, quicked); | |
| 3554 | |
|
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|
3555 __ push(atos); // save receiver for result, and for GC |
|
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|
3556 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
|
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|
3557 // vm_result_2 has metadata result |
|
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|
3558 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3559 __ pop_ptr(rdx); // restore receiver |
|
1976
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6780143: hs203t003 hits SIGSEGV/EXCEPTION_ACCESS_VIOLATION with -XX:+UseCompressedOops
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1972
diff
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|
3560 __ verify_oop(rdx); |
|
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|
3561 __ load_klass(rdx, rdx); |
| 0 | 3562 __ jmpb(resolved); |
| 3563 | |
| 3564 // Get superklass in rax and subklass in rdx | |
| 3565 __ bind(quicked); | |
|
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|
3566 __ load_klass(rdx, rax); |
| 304 | 3567 __ movptr(rax, Address(rcx, rbx, |
|
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|
3568 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3569 |
| 3570 __ bind(resolved); | |
| 3571 | |
| 3572 // Generate subtype check. Blows rcx, rdi | |
| 3573 // Superklass in rax. Subklass in rdx. | |
| 3574 __ gen_subtype_check(rdx, ok_is_subtype); | |
| 3575 | |
| 3576 // Come here on failure | |
| 3577 __ xorl(rax, rax); | |
| 3578 __ jmpb(done); | |
| 3579 // Come here on success | |
| 3580 __ bind(ok_is_subtype); | |
| 3581 __ movl(rax, 1); | |
| 3582 | |
| 3583 // Collect counts on whether this test sees NULLs a lot or not. | |
| 3584 if (ProfileInterpreter) { | |
| 3585 __ jmp(done); | |
| 3586 __ bind(is_null); | |
| 3587 __ profile_null_seen(rcx); | |
| 3588 } else { | |
| 3589 __ bind(is_null); // same as 'done' | |
| 3590 } | |
| 3591 __ bind(done); | |
| 3592 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
| 3593 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
| 3594 } | |
| 3595 | |
| 3596 //----------------------------------------------------------------------------- | |
| 3597 // Breakpoints | |
| 3598 void TemplateTable::_breakpoint() { | |
| 3599 // Note: We get here even if we are single stepping.. | |
| 3600 // jbug inists on setting breakpoints at every bytecode | |
| 3601 // even if we are in single step mode. | |
| 3602 | |
| 3603 transition(vtos, vtos); | |
| 3604 | |
| 3605 // get the unpatched byte code | |
| 3606 __ get_method(c_rarg1); | |
| 3607 __ call_VM(noreg, | |
| 3608 CAST_FROM_FN_PTR(address, | |
| 3609 InterpreterRuntime::get_original_bytecode_at), | |
| 3610 c_rarg1, r13); | |
| 304 | 3611 __ mov(rbx, rax); |
| 0 | 3612 |
| 3613 // post the breakpoint event | |
| 3614 __ get_method(c_rarg1); | |
| 3615 __ call_VM(noreg, | |
| 3616 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
| 3617 c_rarg1, r13); | |
| 3618 | |
| 3619 // complete the execution of original bytecode | |
| 3620 __ dispatch_only_normal(vtos); | |
| 3621 } | |
| 3622 | |
| 3623 //----------------------------------------------------------------------------- | |
| 3624 // Exceptions | |
| 3625 | |
| 3626 void TemplateTable::athrow() { | |
| 3627 transition(atos, vtos); | |
| 3628 __ null_check(rax); | |
| 3629 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 3630 } | |
| 3631 | |
| 3632 //----------------------------------------------------------------------------- | |
| 3633 // Synchronization | |
| 3634 // | |
| 3635 // Note: monitorenter & exit are symmetric routines; which is reflected | |
| 3636 // in the assembly code structure as well | |
| 3637 // | |
| 3638 // Stack layout: | |
| 3639 // | |
| 3640 // [expressions ] <--- rsp = expression stack top | |
| 3641 // .. | |
| 3642 // [expressions ] | |
| 3643 // [monitor entry] <--- monitor block top = expression stack bot | |
| 3644 // .. | |
| 3645 // [monitor entry] | |
| 3646 // [frame data ] <--- monitor block bot | |
| 3647 // ... | |
| 3648 // [saved rbp ] <--- rbp | |
| 3649 void TemplateTable::monitorenter() { | |
| 3650 transition(atos, vtos); | |
| 3651 | |
| 3652 // check for NULL object | |
| 3653 __ null_check(rax); | |
| 3654 | |
| 3655 const Address monitor_block_top( | |
| 3656 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3657 const Address monitor_block_bot( | |
| 3658 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3659 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3660 | |
| 3661 Label allocated; | |
| 3662 | |
| 3663 // initialize entry pointer | |
| 3664 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
| 3665 | |
| 3666 // find a free slot in the monitor block (result in c_rarg1) | |
| 3667 { | |
| 3668 Label entry, loop, exit; | |
| 304 | 3669 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
| 0 | 3670 // starting with top-most entry |
| 304 | 3671 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3672 // of monitor block |
| 3673 __ jmpb(entry); | |
| 3674 | |
| 3675 __ bind(loop); | |
| 3676 // check if current entry is used | |
| 304 | 3677 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
| 0 | 3678 // if not used then remember entry in c_rarg1 |
| 304 | 3679 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
| 0 | 3680 // check if current entry is for same object |
| 304 | 3681 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3682 // if same object then stop searching |
| 3683 __ jccb(Assembler::equal, exit); | |
| 3684 // otherwise advance to next entry | |
| 304 | 3685 __ addptr(c_rarg3, entry_size); |
| 0 | 3686 __ bind(entry); |
| 3687 // check if bottom reached | |
| 304 | 3688 __ cmpptr(c_rarg3, c_rarg2); |
| 0 | 3689 // if not at bottom then check this entry |
| 3690 __ jcc(Assembler::notEqual, loop); | |
| 3691 __ bind(exit); | |
| 3692 } | |
| 3693 | |
| 304 | 3694 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
| 0 | 3695 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
| 3696 | |
| 3697 // allocate one if there's no free slot | |
| 3698 { | |
| 3699 Label entry, loop; | |
| 304 | 3700 // 1. compute new pointers // rsp: old expression stack top |
| 3701 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
| 3702 __ subptr(rsp, entry_size); // move expression stack top | |
| 3703 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
| 3704 __ mov(c_rarg3, rsp); // set start value for copy loop | |
| 3705 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
| 0 | 3706 __ jmp(entry); |
| 3707 // 2. move expression stack contents | |
| 3708 __ bind(loop); | |
| 304 | 3709 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
| 3710 // word from old location | |
| 3711 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
| 3712 __ addptr(c_rarg3, wordSize); // advance to next word | |
| 0 | 3713 __ bind(entry); |
| 304 | 3714 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
| 0 | 3715 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
| 3716 // copy next word | |
| 3717 } | |
| 3718 | |
| 3719 // call run-time routine | |
| 3720 // c_rarg1: points to monitor entry | |
| 3721 __ bind(allocated); | |
| 3722 | |
| 3723 // Increment bcp to point to the next bytecode, so exception | |
| 3724 // handling for async. exceptions work correctly. | |
| 3725 // The object has already been poped from the stack, so the | |
| 3726 // expression stack looks correct. | |
| 304 | 3727 __ increment(r13); |
| 0 | 3728 |
| 3729 // store object | |
| 304 | 3730 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 0 | 3731 __ lock_object(c_rarg1); |
| 3732 | |
| 3733 // check to make sure this monitor doesn't cause stack overflow after locking | |
| 3734 __ save_bcp(); // in case of exception | |
| 3735 __ generate_stack_overflow_check(0); | |
| 3736 | |
| 3737 // The bcp has already been incremented. Just need to dispatch to | |
| 3738 // next instruction. | |
| 3739 __ dispatch_next(vtos); | |
| 3740 } | |
| 3741 | |
| 3742 | |
| 3743 void TemplateTable::monitorexit() { | |
| 3744 transition(atos, vtos); | |
| 3745 | |
| 3746 // check for NULL object | |
| 3747 __ null_check(rax); | |
| 3748 | |
| 3749 const Address monitor_block_top( | |
| 3750 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3751 const Address monitor_block_bot( | |
| 3752 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3753 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3754 | |
| 3755 Label found; | |
| 3756 | |
| 3757 // find matching slot | |
| 3758 { | |
| 3759 Label entry, loop; | |
| 304 | 3760 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
| 0 | 3761 // starting with top-most entry |
| 304 | 3762 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3763 // of monitor block |
| 3764 __ jmpb(entry); | |
| 3765 | |
| 3766 __ bind(loop); | |
| 3767 // check if current entry is for same object | |
| 304 | 3768 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3769 // if same object then stop searching |
| 3770 __ jcc(Assembler::equal, found); | |
| 3771 // otherwise advance to next entry | |
| 304 | 3772 __ addptr(c_rarg1, entry_size); |
| 0 | 3773 __ bind(entry); |
| 3774 // check if bottom reached | |
| 304 | 3775 __ cmpptr(c_rarg1, c_rarg2); |
| 0 | 3776 // if not at bottom then check this entry |
| 3777 __ jcc(Assembler::notEqual, loop); | |
| 3778 } | |
| 3779 | |
| 3780 // error handling. Unlocking was not block-structured | |
| 3781 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 3782 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3783 __ should_not_reach_here(); | |
| 3784 | |
| 3785 // call run-time routine | |
| 3786 // rsi: points to monitor entry | |
| 3787 __ bind(found); | |
| 3788 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
| 3789 __ unlock_object(c_rarg1); | |
| 3790 __ pop_ptr(rax); // discard object | |
| 3791 } | |
| 3792 | |
| 3793 | |
| 3794 // Wide instructions | |
| 3795 void TemplateTable::wide() { | |
| 3796 transition(vtos, vtos); | |
| 3797 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 3798 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
| 3799 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
| 3800 // Note: the r13 increment step is part of the individual wide | |
| 3801 // bytecode implementations | |
| 3802 } | |
| 3803 | |
| 3804 | |
| 3805 // Multi arrays | |
| 3806 void TemplateTable::multianewarray() { | |
| 3807 transition(vtos, atos); | |
| 3808 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
| 3809 // last dim is on top of stack; we want address of first one: | |
| 3810 // first_addr = last_addr + (ndims - 1) * wordSize | |
| 304 | 3811 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
| 0 | 3812 call_VM(rax, |
| 3813 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
| 3814 c_rarg1); | |
| 3815 __ load_unsigned_byte(rbx, at_bcp(3)); | |
| 304 | 3816 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 3817 } |
| 304 | 3818 #endif // !CC_INTERP |