Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 6831:d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
Summary: Capitalize these metadata types (and objArrayKlass)
Reviewed-by: stefank, twisti, kvn
| author | coleenp |
|---|---|
| date | Sat, 29 Sep 2012 06:40:00 -0400 |
| parents | 75f33eecc1b3 |
| children | 6e5a59a8e4a7 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "interpreter/interpreter.hpp" | |
| 27 #include "interpreter/interpreterRuntime.hpp" | |
| 28 #include "interpreter/templateTable.hpp" | |
| 29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
| 1972 | 31 #include "oops/objArrayKlass.hpp" |
| 32 #include "oops/oop.inline.hpp" | |
| 33 #include "prims/methodHandles.hpp" | |
| 34 #include "runtime/sharedRuntime.hpp" | |
| 35 #include "runtime/stubRoutines.hpp" | |
| 36 #include "runtime/synchronizer.hpp" | |
| 0 | 37 |
| 304 | 38 #ifndef CC_INTERP |
| 39 | |
| 0 | 40 #define __ _masm-> |
| 41 | |
| 42 // Platform-dependent initialization | |
| 43 | |
| 44 void TemplateTable::pd_initialize() { | |
| 45 // No amd64 specific initialization | |
| 46 } | |
| 47 | |
| 48 // Address computation: local variables | |
| 49 | |
| 50 static inline Address iaddress(int n) { | |
| 51 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
| 52 } | |
| 53 | |
| 54 static inline Address laddress(int n) { | |
| 55 return iaddress(n + 1); | |
| 56 } | |
| 57 | |
| 58 static inline Address faddress(int n) { | |
| 59 return iaddress(n); | |
| 60 } | |
| 61 | |
| 62 static inline Address daddress(int n) { | |
| 63 return laddress(n); | |
| 64 } | |
| 65 | |
| 66 static inline Address aaddress(int n) { | |
| 67 return iaddress(n); | |
| 68 } | |
| 69 | |
| 70 static inline Address iaddress(Register r) { | |
| 1506 | 71 return Address(r14, r, Address::times_8); |
| 0 | 72 } |
| 73 | |
| 74 static inline Address laddress(Register r) { | |
| 75 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
| 76 } | |
| 77 | |
| 78 static inline Address faddress(Register r) { | |
| 79 return iaddress(r); | |
| 80 } | |
| 81 | |
| 82 static inline Address daddress(Register r) { | |
| 83 return laddress(r); | |
| 84 } | |
| 85 | |
| 86 static inline Address aaddress(Register r) { | |
| 87 return iaddress(r); | |
| 88 } | |
| 89 | |
| 90 static inline Address at_rsp() { | |
| 91 return Address(rsp, 0); | |
| 92 } | |
| 93 | |
| 94 // At top of Java expression stack which may be different than esp(). It | |
| 95 // isn't for category 1 objects. | |
| 96 static inline Address at_tos () { | |
| 97 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
| 98 } | |
| 99 | |
| 100 static inline Address at_tos_p1() { | |
| 101 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
| 102 } | |
| 103 | |
| 104 static inline Address at_tos_p2() { | |
| 105 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
| 106 } | |
| 107 | |
| 108 static inline Address at_tos_p3() { | |
| 109 return Address(rsp, Interpreter::expr_offset_in_bytes(3)); | |
| 110 } | |
| 111 | |
| 112 // Condition conversion | |
| 113 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
| 114 switch (cc) { | |
| 115 case TemplateTable::equal : return Assembler::notEqual; | |
| 116 case TemplateTable::not_equal : return Assembler::equal; | |
| 117 case TemplateTable::less : return Assembler::greaterEqual; | |
| 118 case TemplateTable::less_equal : return Assembler::greater; | |
| 119 case TemplateTable::greater : return Assembler::lessEqual; | |
| 120 case TemplateTable::greater_equal: return Assembler::less; | |
| 121 } | |
| 122 ShouldNotReachHere(); | |
| 123 return Assembler::zero; | |
| 124 } | |
| 125 | |
| 126 | |
| 127 // Miscelaneous helper routines | |
|
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128 // Store an oop (or NULL) at the address described by obj. |
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129 // If val == noreg this means store a NULL |
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130 |
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131 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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132 Address obj, |
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133 Register val, |
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134 BarrierSet::Name barrier, |
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135 bool precise) { |
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136 assert(val == noreg || val == rax, "parameter is just for looks"); |
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137 switch (barrier) { |
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138 #ifndef SERIALGC |
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139 case BarrierSet::G1SATBCT: |
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140 case BarrierSet::G1SATBCTLogging: |
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141 { |
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142 // flatten object address if needed |
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143 if (obj.index() == noreg && obj.disp() == 0) { |
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144 if (obj.base() != rdx) { |
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145 __ movq(rdx, obj.base()); |
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146 } |
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147 } else { |
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148 __ leaq(rdx, obj); |
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149 } |
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150 __ g1_write_barrier_pre(rdx /* obj */, |
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151 rbx /* pre_val */, |
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152 r15_thread /* thread */, |
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153 r8 /* tmp */, |
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154 val != noreg /* tosca_live */, |
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155 false /* expand_call */); |
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156 if (val == noreg) { |
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157 __ store_heap_oop_null(Address(rdx, 0)); |
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158 } else { |
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159 __ store_heap_oop(Address(rdx, 0), val); |
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160 __ g1_write_barrier_post(rdx /* store_adr */, |
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161 val /* new_val */, |
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162 r15_thread /* thread */, |
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163 r8 /* tmp */, |
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164 rbx /* tmp2 */); |
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165 } |
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166 |
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167 } |
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168 break; |
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169 #endif // SERIALGC |
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170 case BarrierSet::CardTableModRef: |
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171 case BarrierSet::CardTableExtension: |
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172 { |
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173 if (val == noreg) { |
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174 __ store_heap_oop_null(obj); |
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175 } else { |
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176 __ store_heap_oop(obj, val); |
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177 // flatten object address if needed |
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178 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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179 __ store_check(obj.base()); |
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180 } else { |
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181 __ leaq(rdx, obj); |
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182 __ store_check(rdx); |
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183 } |
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184 } |
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185 } |
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186 break; |
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187 case BarrierSet::ModRef: |
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188 case BarrierSet::Other: |
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189 if (val == noreg) { |
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190 __ store_heap_oop_null(obj); |
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191 } else { |
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192 __ store_heap_oop(obj, val); |
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193 } |
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194 break; |
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195 default : |
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196 ShouldNotReachHere(); |
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197 |
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198 } |
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199 } |
| 0 | 200 |
| 201 Address TemplateTable::at_bcp(int offset) { | |
| 202 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 203 return Address(r13, offset); | |
| 204 } | |
| 205 | |
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206 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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207 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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208 int byte_no) { |
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209 if (!RewriteBytecodes) return; |
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210 Label L_patch_done; |
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211 |
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212 switch (bc) { |
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213 case Bytecodes::_fast_aputfield: |
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214 case Bytecodes::_fast_bputfield: |
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215 case Bytecodes::_fast_cputfield: |
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216 case Bytecodes::_fast_dputfield: |
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217 case Bytecodes::_fast_fputfield: |
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218 case Bytecodes::_fast_iputfield: |
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219 case Bytecodes::_fast_lputfield: |
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220 case Bytecodes::_fast_sputfield: |
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221 { |
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222 // We skip bytecode quickening for putfield instructions when |
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223 // the put_code written to the constant pool cache is zero. |
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224 // This is required so that every execution of this instruction |
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225 // calls out to InterpreterRuntime::resolve_get_put to do |
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226 // additional, required work. |
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227 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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228 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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229 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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230 __ movl(bc_reg, bc); |
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231 __ cmpl(temp_reg, (int) 0); |
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232 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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233 } |
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234 break; |
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235 default: |
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236 assert(byte_no == -1, "sanity"); |
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237 // the pair bytecodes have already done the load. |
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238 if (load_bc_into_bc_reg) { |
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239 __ movl(bc_reg, bc); |
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240 } |
| 0 | 241 } |
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242 |
| 0 | 243 if (JvmtiExport::can_post_breakpoint()) { |
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244 Label L_fast_patch; |
| 0 | 245 // if a breakpoint is present we can't rewrite the stream directly |
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246 __ movzbl(temp_reg, at_bcp(0)); |
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247 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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248 __ jcc(Assembler::notEqual, L_fast_patch); |
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249 __ get_method(temp_reg); |
| 0 | 250 // Let breakpoint table handling rewrite to quicker bytecode |
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251 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
| 0 | 252 #ifndef ASSERT |
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253 __ jmpb(L_patch_done); |
| 1108 | 254 #else |
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255 __ jmp(L_patch_done); |
| 1108 | 256 #endif |
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257 __ bind(L_fast_patch); |
| 0 | 258 } |
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259 |
| 1108 | 260 #ifdef ASSERT |
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261 Label L_okay; |
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262 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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263 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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264 __ jcc(Assembler::equal, L_okay); |
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265 __ cmpl(temp_reg, bc_reg); |
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266 __ jcc(Assembler::equal, L_okay); |
| 0 | 267 __ stop("patching the wrong bytecode"); |
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268 __ bind(L_okay); |
| 0 | 269 #endif |
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270 |
| 0 | 271 // patch bytecode |
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272 __ movb(at_bcp(0), bc_reg); |
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273 __ bind(L_patch_done); |
| 0 | 274 } |
| 275 | |
| 276 | |
| 277 // Individual instructions | |
| 278 | |
| 279 void TemplateTable::nop() { | |
| 280 transition(vtos, vtos); | |
| 281 // nothing to do | |
| 282 } | |
| 283 | |
| 284 void TemplateTable::shouldnotreachhere() { | |
| 285 transition(vtos, vtos); | |
| 286 __ stop("shouldnotreachhere bytecode"); | |
| 287 } | |
| 288 | |
| 289 void TemplateTable::aconst_null() { | |
| 290 transition(vtos, atos); | |
| 291 __ xorl(rax, rax); | |
| 292 } | |
| 293 | |
| 294 void TemplateTable::iconst(int value) { | |
| 295 transition(vtos, itos); | |
| 296 if (value == 0) { | |
| 297 __ xorl(rax, rax); | |
| 298 } else { | |
| 299 __ movl(rax, value); | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 void TemplateTable::lconst(int value) { | |
| 304 transition(vtos, ltos); | |
| 305 if (value == 0) { | |
| 306 __ xorl(rax, rax); | |
| 307 } else { | |
| 308 __ movl(rax, value); | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 void TemplateTable::fconst(int value) { | |
| 313 transition(vtos, ftos); | |
| 314 static float one = 1.0f, two = 2.0f; | |
| 315 switch (value) { | |
| 316 case 0: | |
| 317 __ xorps(xmm0, xmm0); | |
| 318 break; | |
| 319 case 1: | |
| 320 __ movflt(xmm0, ExternalAddress((address) &one)); | |
| 321 break; | |
| 322 case 2: | |
| 323 __ movflt(xmm0, ExternalAddress((address) &two)); | |
| 324 break; | |
| 325 default: | |
| 326 ShouldNotReachHere(); | |
| 327 break; | |
| 328 } | |
| 329 } | |
| 330 | |
| 331 void TemplateTable::dconst(int value) { | |
| 332 transition(vtos, dtos); | |
| 333 static double one = 1.0; | |
| 334 switch (value) { | |
| 335 case 0: | |
| 336 __ xorpd(xmm0, xmm0); | |
| 337 break; | |
| 338 case 1: | |
| 339 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
| 340 break; | |
| 341 default: | |
| 342 ShouldNotReachHere(); | |
| 343 break; | |
| 344 } | |
| 345 } | |
| 346 | |
| 347 void TemplateTable::bipush() { | |
| 348 transition(vtos, itos); | |
| 349 __ load_signed_byte(rax, at_bcp(1)); | |
| 350 } | |
| 351 | |
| 352 void TemplateTable::sipush() { | |
| 353 transition(vtos, itos); | |
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354 __ load_unsigned_short(rax, at_bcp(1)); |
| 0 | 355 __ bswapl(rax); |
| 356 __ sarl(rax, 16); | |
| 357 } | |
| 358 | |
| 359 void TemplateTable::ldc(bool wide) { | |
| 360 transition(vtos, vtos); | |
| 361 Label call_ldc, notFloat, notClass, Done; | |
| 362 | |
| 363 if (wide) { | |
| 364 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 365 } else { | |
| 366 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 367 } | |
| 368 | |
| 369 __ get_cpool_and_tags(rcx, rax); | |
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370 const int base_offset = ConstantPool::header_size() * wordSize; |
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371 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 372 |
| 373 // get type | |
| 374 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
| 375 | |
| 376 // unresolved class - get the resolved class | |
| 377 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
| 378 __ jccb(Assembler::equal, call_ldc); | |
| 379 | |
| 380 // unresolved class in error state - call into runtime to throw the error | |
| 381 // from the first resolution attempt | |
| 382 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
| 383 __ jccb(Assembler::equal, call_ldc); | |
| 384 | |
| 385 // resolved class - need to call vm to get java mirror of the class | |
| 386 __ cmpl(rdx, JVM_CONSTANT_Class); | |
| 387 __ jcc(Assembler::notEqual, notClass); | |
| 388 | |
| 389 __ bind(call_ldc); | |
| 390 __ movl(c_rarg1, wide); | |
| 391 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
| 392 __ push_ptr(rax); | |
| 393 __ verify_oop(rax); | |
| 394 __ jmp(Done); | |
| 395 | |
| 396 __ bind(notClass); | |
| 397 __ cmpl(rdx, JVM_CONSTANT_Float); | |
| 398 __ jccb(Assembler::notEqual, notFloat); | |
| 399 // ftos | |
| 400 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 401 __ push_f(); | |
| 402 __ jmp(Done); | |
| 403 | |
| 404 __ bind(notFloat); | |
| 405 #ifdef ASSERT | |
| 406 { | |
| 407 Label L; | |
| 408 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
| 409 __ jcc(Assembler::equal, L); | |
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410 // String and Object are rewritten to fast_aldc |
| 0 | 411 __ stop("unexpected tag type in ldc"); |
| 412 __ bind(L); | |
| 413 } | |
| 414 #endif | |
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415 // itos JVM_CONSTANT_Integer only |
| 0 | 416 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
| 417 __ push_i(rax); | |
| 418 __ bind(Done); | |
| 419 } | |
| 420 | |
| 1602 | 421 // Fast path for caching oop constants. |
| 422 void TemplateTable::fast_aldc(bool wide) { | |
| 423 transition(vtos, atos); | |
| 424 | |
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425 Register result = rax; |
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426 Register tmp = rdx; |
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427 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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428 |
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429 Label resolved; |
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430 |
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431 // We are resolved if the resolved reference cache entry contains a |
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432 // non-null object (String, MethodType, etc.) |
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433 assert_different_registers(result, tmp); |
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434 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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435 __ load_resolved_reference_at_index(result, tmp); |
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436 __ testl(result, result); |
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437 __ jcc(Assembler::notZero, resolved); |
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438 |
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439 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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440 |
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441 // first time invocation - must resolve first |
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442 __ movl(tmp, (int)bytecode()); |
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443 __ call_VM(result, entry, tmp); |
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444 |
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445 __ bind(resolved); |
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446 |
| 1602 | 447 if (VerifyOops) { |
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448 __ verify_oop(result); |
| 1602 | 449 } |
| 450 } | |
| 451 | |
| 0 | 452 void TemplateTable::ldc2_w() { |
| 453 transition(vtos, vtos); | |
| 454 Label Long, Done; | |
| 455 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
| 456 | |
| 457 __ get_cpool_and_tags(rcx, rax); | |
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458 const int base_offset = ConstantPool::header_size() * wordSize; |
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459 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 460 |
| 461 // get type | |
| 462 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
| 463 JVM_CONSTANT_Double); | |
| 464 __ jccb(Assembler::notEqual, Long); | |
| 465 // dtos | |
| 466 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 467 __ push_d(); | |
| 468 __ jmpb(Done); | |
| 469 | |
| 470 __ bind(Long); | |
| 471 // ltos | |
| 472 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
| 473 __ push_l(); | |
| 474 | |
| 475 __ bind(Done); | |
| 476 } | |
| 477 | |
| 478 void TemplateTable::locals_index(Register reg, int offset) { | |
| 479 __ load_unsigned_byte(reg, at_bcp(offset)); | |
| 304 | 480 __ negptr(reg); |
| 0 | 481 } |
| 482 | |
| 483 void TemplateTable::iload() { | |
| 484 transition(vtos, itos); | |
| 485 if (RewriteFrequentPairs) { | |
| 486 Label rewrite, done; | |
| 487 const Register bc = c_rarg3; | |
| 488 assert(rbx != bc, "register damaged"); | |
| 489 | |
| 490 // get next byte | |
| 491 __ load_unsigned_byte(rbx, | |
| 492 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
| 493 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 494 // last two iloads in a pair. Comparing against fast_iload means that | |
| 495 // the next bytecode is neither an iload or a caload, and therefore | |
| 496 // an iload pair. | |
| 497 __ cmpl(rbx, Bytecodes::_iload); | |
| 498 __ jcc(Assembler::equal, done); | |
| 499 | |
| 500 __ cmpl(rbx, Bytecodes::_fast_iload); | |
| 501 __ movl(bc, Bytecodes::_fast_iload2); | |
| 502 __ jccb(Assembler::equal, rewrite); | |
| 503 | |
| 504 // if _caload, rewrite to fast_icaload | |
| 505 __ cmpl(rbx, Bytecodes::_caload); | |
| 506 __ movl(bc, Bytecodes::_fast_icaload); | |
| 507 __ jccb(Assembler::equal, rewrite); | |
| 508 | |
| 509 // rewrite so iload doesn't check again. | |
| 510 __ movl(bc, Bytecodes::_fast_iload); | |
| 511 | |
| 512 // rewrite | |
| 513 // bc: fast bytecode | |
| 514 __ bind(rewrite); | |
| 515 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
| 516 __ bind(done); | |
| 517 } | |
| 518 | |
| 519 // Get the local value into tos | |
| 520 locals_index(rbx); | |
| 521 __ movl(rax, iaddress(rbx)); | |
| 522 } | |
| 523 | |
| 524 void TemplateTable::fast_iload2() { | |
| 525 transition(vtos, itos); | |
| 526 locals_index(rbx); | |
| 527 __ movl(rax, iaddress(rbx)); | |
| 528 __ push(itos); | |
| 529 locals_index(rbx, 3); | |
| 530 __ movl(rax, iaddress(rbx)); | |
| 531 } | |
| 532 | |
| 533 void TemplateTable::fast_iload() { | |
| 534 transition(vtos, itos); | |
| 535 locals_index(rbx); | |
| 536 __ movl(rax, iaddress(rbx)); | |
| 537 } | |
| 538 | |
| 539 void TemplateTable::lload() { | |
| 540 transition(vtos, ltos); | |
| 541 locals_index(rbx); | |
| 542 __ movq(rax, laddress(rbx)); | |
| 543 } | |
| 544 | |
| 545 void TemplateTable::fload() { | |
| 546 transition(vtos, ftos); | |
| 547 locals_index(rbx); | |
| 548 __ movflt(xmm0, faddress(rbx)); | |
| 549 } | |
| 550 | |
| 551 void TemplateTable::dload() { | |
| 552 transition(vtos, dtos); | |
| 553 locals_index(rbx); | |
| 554 __ movdbl(xmm0, daddress(rbx)); | |
| 555 } | |
| 556 | |
| 557 void TemplateTable::aload() { | |
| 558 transition(vtos, atos); | |
| 559 locals_index(rbx); | |
| 304 | 560 __ movptr(rax, aaddress(rbx)); |
| 0 | 561 } |
| 562 | |
| 563 void TemplateTable::locals_index_wide(Register reg) { | |
| 564 __ movl(reg, at_bcp(2)); | |
| 565 __ bswapl(reg); | |
| 566 __ shrl(reg, 16); | |
| 304 | 567 __ negptr(reg); |
| 0 | 568 } |
| 569 | |
| 570 void TemplateTable::wide_iload() { | |
| 571 transition(vtos, itos); | |
| 572 locals_index_wide(rbx); | |
| 573 __ movl(rax, iaddress(rbx)); | |
| 574 } | |
| 575 | |
| 576 void TemplateTable::wide_lload() { | |
| 577 transition(vtos, ltos); | |
| 578 locals_index_wide(rbx); | |
| 579 __ movq(rax, laddress(rbx)); | |
| 580 } | |
| 581 | |
| 582 void TemplateTable::wide_fload() { | |
| 583 transition(vtos, ftos); | |
| 584 locals_index_wide(rbx); | |
| 585 __ movflt(xmm0, faddress(rbx)); | |
| 586 } | |
| 587 | |
| 588 void TemplateTable::wide_dload() { | |
| 589 transition(vtos, dtos); | |
| 590 locals_index_wide(rbx); | |
| 591 __ movdbl(xmm0, daddress(rbx)); | |
| 592 } | |
| 593 | |
| 594 void TemplateTable::wide_aload() { | |
| 595 transition(vtos, atos); | |
| 596 locals_index_wide(rbx); | |
| 304 | 597 __ movptr(rax, aaddress(rbx)); |
| 0 | 598 } |
| 599 | |
| 600 void TemplateTable::index_check(Register array, Register index) { | |
| 601 // destroys rbx | |
| 602 // check array | |
| 603 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
| 604 // sign extend index for use by indexed load | |
| 304 | 605 __ movl2ptr(index, index); |
| 0 | 606 // check index |
| 607 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
| 608 if (index != rbx) { | |
| 609 // ??? convention: move aberrant index into ebx for exception message | |
| 610 assert(rbx != array, "different registers"); | |
| 611 __ movl(rbx, index); | |
| 612 } | |
| 613 __ jump_cc(Assembler::aboveEqual, | |
| 614 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
| 615 } | |
| 616 | |
| 617 void TemplateTable::iaload() { | |
| 618 transition(itos, itos); | |
| 619 __ pop_ptr(rdx); | |
| 620 // eax: index | |
| 621 // rdx: array | |
| 622 index_check(rdx, rax); // kills rbx | |
| 623 __ movl(rax, Address(rdx, rax, | |
| 624 Address::times_4, | |
| 625 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
| 626 } | |
| 627 | |
| 628 void TemplateTable::laload() { | |
| 629 transition(itos, ltos); | |
| 630 __ pop_ptr(rdx); | |
| 631 // eax: index | |
| 632 // rdx: array | |
| 633 index_check(rdx, rax); // kills rbx | |
| 634 __ movq(rax, Address(rdx, rbx, | |
| 635 Address::times_8, | |
| 636 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
| 637 } | |
| 638 | |
| 639 void TemplateTable::faload() { | |
| 640 transition(itos, ftos); | |
| 641 __ pop_ptr(rdx); | |
| 642 // eax: index | |
| 643 // rdx: array | |
| 644 index_check(rdx, rax); // kills rbx | |
| 645 __ movflt(xmm0, Address(rdx, rax, | |
| 646 Address::times_4, | |
| 647 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
| 648 } | |
| 649 | |
| 650 void TemplateTable::daload() { | |
| 651 transition(itos, dtos); | |
| 652 __ pop_ptr(rdx); | |
| 653 // eax: index | |
| 654 // rdx: array | |
| 655 index_check(rdx, rax); // kills rbx | |
| 656 __ movdbl(xmm0, Address(rdx, rax, | |
| 657 Address::times_8, | |
| 658 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
| 659 } | |
| 660 | |
| 661 void TemplateTable::aaload() { | |
| 662 transition(itos, atos); | |
| 663 __ pop_ptr(rdx); | |
| 664 // eax: index | |
| 665 // rdx: array | |
| 666 index_check(rdx, rax); // kills rbx | |
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667 __ load_heap_oop(rax, Address(rdx, rax, |
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668 UseCompressedOops ? Address::times_4 : Address::times_8, |
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669 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
| 0 | 670 } |
| 671 | |
| 672 void TemplateTable::baload() { | |
| 673 transition(itos, itos); | |
| 674 __ pop_ptr(rdx); | |
| 675 // eax: index | |
| 676 // rdx: array | |
| 677 index_check(rdx, rax); // kills rbx | |
| 678 __ load_signed_byte(rax, | |
| 679 Address(rdx, rax, | |
| 680 Address::times_1, | |
| 681 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
| 682 } | |
| 683 | |
| 684 void TemplateTable::caload() { | |
| 685 transition(itos, itos); | |
| 686 __ pop_ptr(rdx); | |
| 687 // eax: index | |
| 688 // rdx: array | |
| 689 index_check(rdx, rax); // kills rbx | |
|
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690 __ load_unsigned_short(rax, |
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691 Address(rdx, rax, |
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692 Address::times_2, |
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693 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 694 } |
| 695 | |
| 696 // iload followed by caload frequent pair | |
| 697 void TemplateTable::fast_icaload() { | |
| 698 transition(vtos, itos); | |
| 699 // load index out of locals | |
| 700 locals_index(rbx); | |
| 701 __ movl(rax, iaddress(rbx)); | |
| 702 | |
| 703 // eax: index | |
| 704 // rdx: array | |
| 705 __ pop_ptr(rdx); | |
| 706 index_check(rdx, rax); // kills rbx | |
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707 __ load_unsigned_short(rax, |
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708 Address(rdx, rax, |
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709 Address::times_2, |
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710 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
| 0 | 711 } |
| 712 | |
| 713 void TemplateTable::saload() { | |
| 714 transition(itos, itos); | |
| 715 __ pop_ptr(rdx); | |
| 716 // eax: index | |
| 717 // rdx: array | |
| 718 index_check(rdx, rax); // kills rbx | |
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719 __ load_signed_short(rax, |
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720 Address(rdx, rax, |
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721 Address::times_2, |
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722 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
| 0 | 723 } |
| 724 | |
| 725 void TemplateTable::iload(int n) { | |
| 726 transition(vtos, itos); | |
| 727 __ movl(rax, iaddress(n)); | |
| 728 } | |
| 729 | |
| 730 void TemplateTable::lload(int n) { | |
| 731 transition(vtos, ltos); | |
| 732 __ movq(rax, laddress(n)); | |
| 733 } | |
| 734 | |
| 735 void TemplateTable::fload(int n) { | |
| 736 transition(vtos, ftos); | |
| 737 __ movflt(xmm0, faddress(n)); | |
| 738 } | |
| 739 | |
| 740 void TemplateTable::dload(int n) { | |
| 741 transition(vtos, dtos); | |
| 742 __ movdbl(xmm0, daddress(n)); | |
| 743 } | |
| 744 | |
| 745 void TemplateTable::aload(int n) { | |
| 746 transition(vtos, atos); | |
| 304 | 747 __ movptr(rax, aaddress(n)); |
| 0 | 748 } |
| 749 | |
| 750 void TemplateTable::aload_0() { | |
| 751 transition(vtos, atos); | |
| 752 // According to bytecode histograms, the pairs: | |
| 753 // | |
| 754 // _aload_0, _fast_igetfield | |
| 755 // _aload_0, _fast_agetfield | |
| 756 // _aload_0, _fast_fgetfield | |
| 757 // | |
| 758 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
| 759 // _aload_0 bytecode checks if the next bytecode is either | |
| 760 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
| 761 // rewrites the current bytecode into a pair bytecode; otherwise it | |
| 762 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
| 763 // the pair check anymore. | |
| 764 // | |
| 765 // Note: If the next bytecode is _getfield, the rewrite must be | |
| 766 // delayed, otherwise we may miss an opportunity for a pair. | |
| 767 // | |
| 768 // Also rewrite frequent pairs | |
| 769 // aload_0, aload_1 | |
| 770 // aload_0, iload_1 | |
| 771 // These bytecodes with a small amount of code are most profitable | |
| 772 // to rewrite | |
| 773 if (RewriteFrequentPairs) { | |
| 774 Label rewrite, done; | |
| 775 const Register bc = c_rarg3; | |
| 776 assert(rbx != bc, "register damaged"); | |
| 777 // get next byte | |
| 778 __ load_unsigned_byte(rbx, | |
| 779 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
| 780 | |
| 781 // do actual aload_0 | |
| 782 aload(0); | |
| 783 | |
| 784 // if _getfield then wait with rewrite | |
| 785 __ cmpl(rbx, Bytecodes::_getfield); | |
| 786 __ jcc(Assembler::equal, done); | |
| 787 | |
| 788 // if _igetfield then reqrite to _fast_iaccess_0 | |
| 789 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
| 790 Bytecodes::_aload_0, | |
| 791 "fix bytecode definition"); | |
| 792 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
| 793 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
| 794 __ jccb(Assembler::equal, rewrite); | |
| 795 | |
| 796 // if _agetfield then reqrite to _fast_aaccess_0 | |
| 797 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
| 798 Bytecodes::_aload_0, | |
| 799 "fix bytecode definition"); | |
| 800 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
| 801 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
| 802 __ jccb(Assembler::equal, rewrite); | |
| 803 | |
| 804 // if _fgetfield then reqrite to _fast_faccess_0 | |
| 805 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
| 806 Bytecodes::_aload_0, | |
| 807 "fix bytecode definition"); | |
| 808 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
| 809 __ movl(bc, Bytecodes::_fast_faccess_0); | |
| 810 __ jccb(Assembler::equal, rewrite); | |
| 811 | |
| 812 // else rewrite to _fast_aload0 | |
| 813 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
| 814 Bytecodes::_aload_0, | |
| 815 "fix bytecode definition"); | |
| 816 __ movl(bc, Bytecodes::_fast_aload_0); | |
| 817 | |
| 818 // rewrite | |
| 819 // bc: fast bytecode | |
| 820 __ bind(rewrite); | |
| 821 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
| 822 | |
| 823 __ bind(done); | |
| 824 } else { | |
| 825 aload(0); | |
| 826 } | |
| 827 } | |
| 828 | |
| 829 void TemplateTable::istore() { | |
| 830 transition(itos, vtos); | |
| 831 locals_index(rbx); | |
| 832 __ movl(iaddress(rbx), rax); | |
| 833 } | |
| 834 | |
| 835 void TemplateTable::lstore() { | |
| 836 transition(ltos, vtos); | |
| 837 locals_index(rbx); | |
| 838 __ movq(laddress(rbx), rax); | |
| 839 } | |
| 840 | |
| 841 void TemplateTable::fstore() { | |
| 842 transition(ftos, vtos); | |
| 843 locals_index(rbx); | |
| 844 __ movflt(faddress(rbx), xmm0); | |
| 845 } | |
| 846 | |
| 847 void TemplateTable::dstore() { | |
| 848 transition(dtos, vtos); | |
| 849 locals_index(rbx); | |
| 850 __ movdbl(daddress(rbx), xmm0); | |
| 851 } | |
| 852 | |
| 853 void TemplateTable::astore() { | |
| 854 transition(vtos, vtos); | |
| 1506 | 855 __ pop_ptr(rax); |
| 0 | 856 locals_index(rbx); |
| 304 | 857 __ movptr(aaddress(rbx), rax); |
| 0 | 858 } |
| 859 | |
| 860 void TemplateTable::wide_istore() { | |
| 861 transition(vtos, vtos); | |
| 862 __ pop_i(); | |
| 863 locals_index_wide(rbx); | |
| 864 __ movl(iaddress(rbx), rax); | |
| 865 } | |
| 866 | |
| 867 void TemplateTable::wide_lstore() { | |
| 868 transition(vtos, vtos); | |
| 869 __ pop_l(); | |
| 870 locals_index_wide(rbx); | |
| 871 __ movq(laddress(rbx), rax); | |
| 872 } | |
| 873 | |
| 874 void TemplateTable::wide_fstore() { | |
| 875 transition(vtos, vtos); | |
| 876 __ pop_f(); | |
| 877 locals_index_wide(rbx); | |
| 878 __ movflt(faddress(rbx), xmm0); | |
| 879 } | |
| 880 | |
| 881 void TemplateTable::wide_dstore() { | |
| 882 transition(vtos, vtos); | |
| 883 __ pop_d(); | |
| 884 locals_index_wide(rbx); | |
| 885 __ movdbl(daddress(rbx), xmm0); | |
| 886 } | |
| 887 | |
| 888 void TemplateTable::wide_astore() { | |
| 889 transition(vtos, vtos); | |
| 1506 | 890 __ pop_ptr(rax); |
| 0 | 891 locals_index_wide(rbx); |
| 304 | 892 __ movptr(aaddress(rbx), rax); |
| 0 | 893 } |
| 894 | |
| 895 void TemplateTable::iastore() { | |
| 896 transition(itos, vtos); | |
| 897 __ pop_i(rbx); | |
| 898 __ pop_ptr(rdx); | |
| 899 // eax: value | |
| 900 // ebx: index | |
| 901 // rdx: array | |
| 902 index_check(rdx, rbx); // prefer index in ebx | |
| 903 __ movl(Address(rdx, rbx, | |
| 904 Address::times_4, | |
| 905 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
| 906 rax); | |
| 907 } | |
| 908 | |
| 909 void TemplateTable::lastore() { | |
| 910 transition(ltos, vtos); | |
| 911 __ pop_i(rbx); | |
| 912 __ pop_ptr(rdx); | |
| 913 // rax: value | |
| 914 // ebx: index | |
| 915 // rdx: array | |
| 916 index_check(rdx, rbx); // prefer index in ebx | |
| 917 __ movq(Address(rdx, rbx, | |
| 918 Address::times_8, | |
| 919 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
| 920 rax); | |
| 921 } | |
| 922 | |
| 923 void TemplateTable::fastore() { | |
| 924 transition(ftos, vtos); | |
| 925 __ pop_i(rbx); | |
| 926 __ pop_ptr(rdx); | |
| 927 // xmm0: value | |
| 928 // ebx: index | |
| 929 // rdx: array | |
| 930 index_check(rdx, rbx); // prefer index in ebx | |
| 931 __ movflt(Address(rdx, rbx, | |
| 932 Address::times_4, | |
| 933 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
| 934 xmm0); | |
| 935 } | |
| 936 | |
| 937 void TemplateTable::dastore() { | |
| 938 transition(dtos, vtos); | |
| 939 __ pop_i(rbx); | |
| 940 __ pop_ptr(rdx); | |
| 941 // xmm0: value | |
| 942 // ebx: index | |
| 943 // rdx: array | |
| 944 index_check(rdx, rbx); // prefer index in ebx | |
| 945 __ movdbl(Address(rdx, rbx, | |
| 946 Address::times_8, | |
| 947 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
| 948 xmm0); | |
| 949 } | |
| 950 | |
| 951 void TemplateTable::aastore() { | |
| 952 Label is_null, ok_is_subtype, done; | |
| 953 transition(vtos, vtos); | |
| 954 // stack: ..., array, index, value | |
| 304 | 955 __ movptr(rax, at_tos()); // value |
| 0 | 956 __ movl(rcx, at_tos_p1()); // index |
| 304 | 957 __ movptr(rdx, at_tos_p2()); // array |
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958 |
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959 Address element_address(rdx, rcx, |
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960 UseCompressedOops? Address::times_4 : Address::times_8, |
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961 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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962 |
| 0 | 963 index_check(rdx, rcx); // kills rbx |
| 964 // do array store check - check for NULL value first | |
| 304 | 965 __ testptr(rax, rax); |
| 0 | 966 __ jcc(Assembler::zero, is_null); |
| 967 | |
| 968 // Move subklass into rbx | |
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969 __ load_klass(rbx, rax); |
| 0 | 970 // Move superklass into rax |
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971 __ load_klass(rax, rdx); |
| 304 | 972 __ movptr(rax, Address(rax, |
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973 ObjArrayKlass::element_klass_offset())); |
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974 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
| 362 | 975 __ lea(rdx, element_address); |
| 0 | 976 |
| 977 // Generate subtype check. Blows rcx, rdi | |
| 978 // Superklass in rax. Subklass in rbx. | |
| 979 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 980 | |
| 981 // Come here on failure | |
| 982 // object is at TOS | |
| 983 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
| 984 | |
| 985 // Come here on success | |
| 986 __ bind(ok_is_subtype); | |
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987 |
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988 // Get the value we will store |
| 362 | 989 __ movptr(rax, at_tos()); |
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990 // Now store using the appropriate barrier |
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991 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
| 0 | 992 __ jmp(done); |
| 993 | |
| 994 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
| 995 __ bind(is_null); | |
| 996 __ profile_null_seen(rbx); | |
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997 |
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998 // Store a NULL |
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999 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
| 0 | 1000 |
| 1001 // Pop stack arguments | |
| 1002 __ bind(done); | |
| 1506 | 1003 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
| 0 | 1004 } |
| 1005 | |
| 1006 void TemplateTable::bastore() { | |
| 1007 transition(itos, vtos); | |
| 1008 __ pop_i(rbx); | |
| 1009 __ pop_ptr(rdx); | |
| 1010 // eax: value | |
| 1011 // ebx: index | |
| 1012 // rdx: array | |
| 1013 index_check(rdx, rbx); // prefer index in ebx | |
| 1014 __ movb(Address(rdx, rbx, | |
| 1015 Address::times_1, | |
| 1016 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
| 1017 rax); | |
| 1018 } | |
| 1019 | |
| 1020 void TemplateTable::castore() { | |
| 1021 transition(itos, vtos); | |
| 1022 __ pop_i(rbx); | |
| 1023 __ pop_ptr(rdx); | |
| 1024 // eax: value | |
| 1025 // ebx: index | |
| 1026 // rdx: array | |
| 1027 index_check(rdx, rbx); // prefer index in ebx | |
| 1028 __ movw(Address(rdx, rbx, | |
| 1029 Address::times_2, | |
| 1030 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
| 1031 rax); | |
| 1032 } | |
| 1033 | |
| 1034 void TemplateTable::sastore() { | |
| 1035 castore(); | |
| 1036 } | |
| 1037 | |
| 1038 void TemplateTable::istore(int n) { | |
| 1039 transition(itos, vtos); | |
| 1040 __ movl(iaddress(n), rax); | |
| 1041 } | |
| 1042 | |
| 1043 void TemplateTable::lstore(int n) { | |
| 1044 transition(ltos, vtos); | |
| 1045 __ movq(laddress(n), rax); | |
| 1046 } | |
| 1047 | |
| 1048 void TemplateTable::fstore(int n) { | |
| 1049 transition(ftos, vtos); | |
| 1050 __ movflt(faddress(n), xmm0); | |
| 1051 } | |
| 1052 | |
| 1053 void TemplateTable::dstore(int n) { | |
| 1054 transition(dtos, vtos); | |
| 1055 __ movdbl(daddress(n), xmm0); | |
| 1056 } | |
| 1057 | |
| 1058 void TemplateTable::astore(int n) { | |
| 1059 transition(vtos, vtos); | |
| 1506 | 1060 __ pop_ptr(rax); |
| 304 | 1061 __ movptr(aaddress(n), rax); |
| 0 | 1062 } |
| 1063 | |
| 1064 void TemplateTable::pop() { | |
| 1065 transition(vtos, vtos); | |
| 1506 | 1066 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1067 } |
| 1068 | |
| 1069 void TemplateTable::pop2() { | |
| 1070 transition(vtos, vtos); | |
| 1506 | 1071 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1072 } |
| 1073 | |
| 1074 void TemplateTable::dup() { | |
| 1075 transition(vtos, vtos); | |
| 1506 | 1076 __ load_ptr(0, rax); |
| 1077 __ push_ptr(rax); | |
| 0 | 1078 // stack: ..., a, a |
| 1079 } | |
| 1080 | |
| 1081 void TemplateTable::dup_x1() { | |
| 1082 transition(vtos, vtos); | |
| 1083 // stack: ..., a, b | |
| 1506 | 1084 __ load_ptr( 0, rax); // load b |
| 1085 __ load_ptr( 1, rcx); // load a | |
| 1086 __ store_ptr(1, rax); // store b | |
| 1087 __ store_ptr(0, rcx); // store a | |
| 1088 __ push_ptr(rax); // push b | |
| 0 | 1089 // stack: ..., b, a, b |
| 1090 } | |
| 1091 | |
| 1092 void TemplateTable::dup_x2() { | |
| 1093 transition(vtos, vtos); | |
| 1094 // stack: ..., a, b, c | |
| 1506 | 1095 __ load_ptr( 0, rax); // load c |
| 1096 __ load_ptr( 2, rcx); // load a | |
| 1097 __ store_ptr(2, rax); // store c in a | |
| 1098 __ push_ptr(rax); // push c | |
| 0 | 1099 // stack: ..., c, b, c, c |
| 1506 | 1100 __ load_ptr( 2, rax); // load b |
| 1101 __ store_ptr(2, rcx); // store a in b | |
| 0 | 1102 // stack: ..., c, a, c, c |
| 1506 | 1103 __ store_ptr(1, rax); // store b in c |
| 0 | 1104 // stack: ..., c, a, b, c |
| 1105 } | |
| 1106 | |
| 1107 void TemplateTable::dup2() { | |
| 1108 transition(vtos, vtos); | |
| 1109 // stack: ..., a, b | |
| 1506 | 1110 __ load_ptr(1, rax); // load a |
| 1111 __ push_ptr(rax); // push a | |
| 1112 __ load_ptr(1, rax); // load b | |
| 1113 __ push_ptr(rax); // push b | |
| 0 | 1114 // stack: ..., a, b, a, b |
| 1115 } | |
| 1116 | |
| 1117 void TemplateTable::dup2_x1() { | |
| 1118 transition(vtos, vtos); | |
| 1119 // stack: ..., a, b, c | |
| 1506 | 1120 __ load_ptr( 0, rcx); // load c |
| 1121 __ load_ptr( 1, rax); // load b | |
| 1122 __ push_ptr(rax); // push b | |
| 1123 __ push_ptr(rcx); // push c | |
| 0 | 1124 // stack: ..., a, b, c, b, c |
| 1506 | 1125 __ store_ptr(3, rcx); // store c in b |
| 0 | 1126 // stack: ..., a, c, c, b, c |
| 1506 | 1127 __ load_ptr( 4, rcx); // load a |
| 1128 __ store_ptr(2, rcx); // store a in 2nd c | |
| 0 | 1129 // stack: ..., a, c, a, b, c |
| 1506 | 1130 __ store_ptr(4, rax); // store b in a |
| 0 | 1131 // stack: ..., b, c, a, b, c |
| 1132 } | |
| 1133 | |
| 1134 void TemplateTable::dup2_x2() { | |
| 1135 transition(vtos, vtos); | |
| 1136 // stack: ..., a, b, c, d | |
| 1506 | 1137 __ load_ptr( 0, rcx); // load d |
| 1138 __ load_ptr( 1, rax); // load c | |
| 1139 __ push_ptr(rax); // push c | |
| 1140 __ push_ptr(rcx); // push d | |
| 0 | 1141 // stack: ..., a, b, c, d, c, d |
| 1506 | 1142 __ load_ptr( 4, rax); // load b |
| 1143 __ store_ptr(2, rax); // store b in d | |
| 1144 __ store_ptr(4, rcx); // store d in b | |
| 0 | 1145 // stack: ..., a, d, c, b, c, d |
| 1506 | 1146 __ load_ptr( 5, rcx); // load a |
| 1147 __ load_ptr( 3, rax); // load c | |
| 1148 __ store_ptr(3, rcx); // store a in c | |
| 1149 __ store_ptr(5, rax); // store c in a | |
| 0 | 1150 // stack: ..., c, d, a, b, c, d |
| 1151 } | |
| 1152 | |
| 1153 void TemplateTable::swap() { | |
| 1154 transition(vtos, vtos); | |
| 1155 // stack: ..., a, b | |
| 1506 | 1156 __ load_ptr( 1, rcx); // load a |
| 1157 __ load_ptr( 0, rax); // load b | |
| 1158 __ store_ptr(0, rcx); // store a in b | |
| 1159 __ store_ptr(1, rax); // store b in a | |
| 0 | 1160 // stack: ..., b, a |
| 1161 } | |
| 1162 | |
| 1163 void TemplateTable::iop2(Operation op) { | |
| 1164 transition(itos, itos); | |
| 1165 switch (op) { | |
| 1166 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
| 1167 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
| 1168 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
| 1169 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
| 1170 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
| 1171 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
| 1172 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
| 1173 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
| 1174 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
| 1175 default : ShouldNotReachHere(); | |
| 1176 } | |
| 1177 } | |
| 1178 | |
| 1179 void TemplateTable::lop2(Operation op) { | |
| 1180 transition(ltos, ltos); | |
| 1181 switch (op) { | |
| 1506 | 1182 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
| 1183 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
| 1184 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
| 1185 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
| 1186 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
| 1187 default : ShouldNotReachHere(); | |
| 0 | 1188 } |
| 1189 } | |
| 1190 | |
| 1191 void TemplateTable::idiv() { | |
| 1192 transition(itos, itos); | |
| 1193 __ movl(rcx, rax); | |
| 1194 __ pop_i(rax); | |
| 1195 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1196 // they are not equal, one could do a normal division (no correction | |
| 1197 // needed), which may speed up this implementation for the common case. | |
| 1198 // (see also JVM spec., p.243 & p.271) | |
| 1199 __ corrected_idivl(rcx); | |
| 1200 } | |
| 1201 | |
| 1202 void TemplateTable::irem() { | |
| 1203 transition(itos, itos); | |
| 1204 __ movl(rcx, rax); | |
| 1205 __ pop_i(rax); | |
| 1206 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
| 1207 // they are not equal, one could do a normal division (no correction | |
| 1208 // needed), which may speed up this implementation for the common case. | |
| 1209 // (see also JVM spec., p.243 & p.271) | |
| 1210 __ corrected_idivl(rcx); | |
| 1211 __ movl(rax, rdx); | |
| 1212 } | |
| 1213 | |
| 1214 void TemplateTable::lmul() { | |
| 1215 transition(ltos, ltos); | |
| 1216 __ pop_l(rdx); | |
| 1217 __ imulq(rax, rdx); | |
| 1218 } | |
| 1219 | |
| 1220 void TemplateTable::ldiv() { | |
| 1221 transition(ltos, ltos); | |
| 304 | 1222 __ mov(rcx, rax); |
| 0 | 1223 __ pop_l(rax); |
| 1224 // generate explicit div0 check | |
| 1225 __ testq(rcx, rcx); | |
| 1226 __ jump_cc(Assembler::zero, | |
| 1227 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1228 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1229 // they are not equal, one could do a normal division (no correction | |
| 1230 // needed), which may speed up this implementation for the common case. | |
| 1231 // (see also JVM spec., p.243 & p.271) | |
| 1232 __ corrected_idivq(rcx); // kills rbx | |
| 1233 } | |
| 1234 | |
| 1235 void TemplateTable::lrem() { | |
| 1236 transition(ltos, ltos); | |
| 304 | 1237 __ mov(rcx, rax); |
| 0 | 1238 __ pop_l(rax); |
| 1239 __ testq(rcx, rcx); | |
| 1240 __ jump_cc(Assembler::zero, | |
| 1241 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
| 1242 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
| 1243 // they are not equal, one could do a normal division (no correction | |
| 1244 // needed), which may speed up this implementation for the common case. | |
| 1245 // (see also JVM spec., p.243 & p.271) | |
| 1246 __ corrected_idivq(rcx); // kills rbx | |
| 304 | 1247 __ mov(rax, rdx); |
| 0 | 1248 } |
| 1249 | |
| 1250 void TemplateTable::lshl() { | |
| 1251 transition(itos, ltos); | |
| 1252 __ movl(rcx, rax); // get shift count | |
| 1253 __ pop_l(rax); // get shift value | |
| 1254 __ shlq(rax); | |
| 1255 } | |
| 1256 | |
| 1257 void TemplateTable::lshr() { | |
| 1258 transition(itos, ltos); | |
| 1259 __ movl(rcx, rax); // get shift count | |
| 1260 __ pop_l(rax); // get shift value | |
| 1261 __ sarq(rax); | |
| 1262 } | |
| 1263 | |
| 1264 void TemplateTable::lushr() { | |
| 1265 transition(itos, ltos); | |
| 1266 __ movl(rcx, rax); // get shift count | |
| 1267 __ pop_l(rax); // get shift value | |
| 1268 __ shrq(rax); | |
| 1269 } | |
| 1270 | |
| 1271 void TemplateTable::fop2(Operation op) { | |
| 1272 transition(ftos, ftos); | |
| 1273 switch (op) { | |
| 1274 case add: | |
| 1275 __ addss(xmm0, at_rsp()); | |
| 1506 | 1276 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1277 break; |
| 1278 case sub: | |
| 1279 __ movflt(xmm1, xmm0); | |
| 1280 __ pop_f(xmm0); | |
| 1281 __ subss(xmm0, xmm1); | |
| 1282 break; | |
| 1283 case mul: | |
| 1284 __ mulss(xmm0, at_rsp()); | |
| 1506 | 1285 __ addptr(rsp, Interpreter::stackElementSize); |
| 0 | 1286 break; |
| 1287 case div: | |
| 1288 __ movflt(xmm1, xmm0); | |
| 1289 __ pop_f(xmm0); | |
| 1290 __ divss(xmm0, xmm1); | |
| 1291 break; | |
| 1292 case rem: | |
| 1293 __ movflt(xmm1, xmm0); | |
| 1294 __ pop_f(xmm0); | |
| 1295 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
| 1296 break; | |
| 1297 default: | |
| 1298 ShouldNotReachHere(); | |
| 1299 break; | |
| 1300 } | |
| 1301 } | |
| 1302 | |
| 1303 void TemplateTable::dop2(Operation op) { | |
| 1304 transition(dtos, dtos); | |
| 1305 switch (op) { | |
| 1306 case add: | |
| 1307 __ addsd(xmm0, at_rsp()); | |
| 1506 | 1308 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1309 break; |
| 1310 case sub: | |
| 1311 __ movdbl(xmm1, xmm0); | |
| 1312 __ pop_d(xmm0); | |
| 1313 __ subsd(xmm0, xmm1); | |
| 1314 break; | |
| 1315 case mul: | |
| 1316 __ mulsd(xmm0, at_rsp()); | |
| 1506 | 1317 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
| 0 | 1318 break; |
| 1319 case div: | |
| 1320 __ movdbl(xmm1, xmm0); | |
| 1321 __ pop_d(xmm0); | |
| 1322 __ divsd(xmm0, xmm1); | |
| 1323 break; | |
| 1324 case rem: | |
| 1325 __ movdbl(xmm1, xmm0); | |
| 1326 __ pop_d(xmm0); | |
| 1327 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
| 1328 break; | |
| 1329 default: | |
| 1330 ShouldNotReachHere(); | |
| 1331 break; | |
| 1332 } | |
| 1333 } | |
| 1334 | |
| 1335 void TemplateTable::ineg() { | |
| 1336 transition(itos, itos); | |
| 1337 __ negl(rax); | |
| 1338 } | |
| 1339 | |
| 1340 void TemplateTable::lneg() { | |
| 1341 transition(ltos, ltos); | |
| 1342 __ negq(rax); | |
| 1343 } | |
| 1344 | |
| 1345 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
| 1346 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
| 1347 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
| 1348 // of 128-bits operands for SSE instructions. | |
| 1349 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
| 1350 // Store the value to a 128-bits operand. | |
| 1351 operand[0] = lo; | |
| 1352 operand[1] = hi; | |
| 1353 return operand; | |
| 1354 } | |
| 1355 | |
| 1356 // Buffer for 128-bits masks used by SSE instructions. | |
| 1357 static jlong float_signflip_pool[2*2]; | |
| 1358 static jlong double_signflip_pool[2*2]; | |
| 1359 | |
| 1360 void TemplateTable::fneg() { | |
| 1361 transition(ftos, ftos); | |
| 1362 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
| 1363 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
| 1364 } | |
| 1365 | |
| 1366 void TemplateTable::dneg() { | |
| 1367 transition(dtos, dtos); | |
| 1368 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
| 1369 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
| 1370 } | |
| 1371 | |
| 1372 void TemplateTable::iinc() { | |
| 1373 transition(vtos, vtos); | |
| 1374 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
| 1375 locals_index(rbx); | |
| 1376 __ addl(iaddress(rbx), rdx); | |
| 1377 } | |
| 1378 | |
| 1379 void TemplateTable::wide_iinc() { | |
| 1380 transition(vtos, vtos); | |
| 1381 __ movl(rdx, at_bcp(4)); // get constant | |
| 1382 locals_index_wide(rbx); | |
| 1383 __ bswapl(rdx); // swap bytes & sign-extend constant | |
| 1384 __ sarl(rdx, 16); | |
| 1385 __ addl(iaddress(rbx), rdx); | |
| 1386 // Note: should probably use only one movl to get both | |
| 1387 // the index and the constant -> fix this | |
| 1388 } | |
| 1389 | |
| 1390 void TemplateTable::convert() { | |
| 1391 // Checking | |
| 1392 #ifdef ASSERT | |
| 1393 { | |
| 1394 TosState tos_in = ilgl; | |
| 1395 TosState tos_out = ilgl; | |
| 1396 switch (bytecode()) { | |
| 1397 case Bytecodes::_i2l: // fall through | |
| 1398 case Bytecodes::_i2f: // fall through | |
| 1399 case Bytecodes::_i2d: // fall through | |
| 1400 case Bytecodes::_i2b: // fall through | |
| 1401 case Bytecodes::_i2c: // fall through | |
| 1402 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1403 case Bytecodes::_l2i: // fall through | |
| 1404 case Bytecodes::_l2f: // fall through | |
| 1405 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1406 case Bytecodes::_f2i: // fall through | |
| 1407 case Bytecodes::_f2l: // fall through | |
| 1408 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1409 case Bytecodes::_d2i: // fall through | |
| 1410 case Bytecodes::_d2l: // fall through | |
| 1411 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1412 default : ShouldNotReachHere(); | |
| 1413 } | |
| 1414 switch (bytecode()) { | |
| 1415 case Bytecodes::_l2i: // fall through | |
| 1416 case Bytecodes::_f2i: // fall through | |
| 1417 case Bytecodes::_d2i: // fall through | |
| 1418 case Bytecodes::_i2b: // fall through | |
| 1419 case Bytecodes::_i2c: // fall through | |
| 1420 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1421 case Bytecodes::_i2l: // fall through | |
| 1422 case Bytecodes::_f2l: // fall through | |
| 1423 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1424 case Bytecodes::_i2f: // fall through | |
| 1425 case Bytecodes::_l2f: // fall through | |
| 1426 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1427 case Bytecodes::_i2d: // fall through | |
| 1428 case Bytecodes::_l2d: // fall through | |
| 1429 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1430 default : ShouldNotReachHere(); | |
| 1431 } | |
| 1432 transition(tos_in, tos_out); | |
| 1433 } | |
| 1434 #endif // ASSERT | |
| 1435 | |
| 1436 static const int64_t is_nan = 0x8000000000000000L; | |
| 1437 | |
| 1438 // Conversion | |
| 1439 switch (bytecode()) { | |
| 1440 case Bytecodes::_i2l: | |
| 1441 __ movslq(rax, rax); | |
| 1442 break; | |
| 1443 case Bytecodes::_i2f: | |
| 1444 __ cvtsi2ssl(xmm0, rax); | |
| 1445 break; | |
| 1446 case Bytecodes::_i2d: | |
| 1447 __ cvtsi2sdl(xmm0, rax); | |
| 1448 break; | |
| 1449 case Bytecodes::_i2b: | |
| 1450 __ movsbl(rax, rax); | |
| 1451 break; | |
| 1452 case Bytecodes::_i2c: | |
| 1453 __ movzwl(rax, rax); | |
| 1454 break; | |
| 1455 case Bytecodes::_i2s: | |
| 1456 __ movswl(rax, rax); | |
| 1457 break; | |
| 1458 case Bytecodes::_l2i: | |
| 1459 __ movl(rax, rax); | |
| 1460 break; | |
| 1461 case Bytecodes::_l2f: | |
| 1462 __ cvtsi2ssq(xmm0, rax); | |
| 1463 break; | |
| 1464 case Bytecodes::_l2d: | |
| 1465 __ cvtsi2sdq(xmm0, rax); | |
| 1466 break; | |
| 1467 case Bytecodes::_f2i: | |
| 1468 { | |
| 1469 Label L; | |
| 1470 __ cvttss2sil(rax, xmm0); | |
| 1471 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1472 __ jcc(Assembler::notEqual, L); | |
| 1473 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
| 1474 __ bind(L); | |
| 1475 } | |
| 1476 break; | |
| 1477 case Bytecodes::_f2l: | |
| 1478 { | |
| 1479 Label L; | |
| 1480 __ cvttss2siq(rax, xmm0); | |
| 1481 // NaN or overflow/underflow? | |
| 1482 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1483 __ jcc(Assembler::notEqual, L); | |
| 1484 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
| 1485 __ bind(L); | |
| 1486 } | |
| 1487 break; | |
| 1488 case Bytecodes::_f2d: | |
| 1489 __ cvtss2sd(xmm0, xmm0); | |
| 1490 break; | |
| 1491 case Bytecodes::_d2i: | |
| 1492 { | |
| 1493 Label L; | |
| 1494 __ cvttsd2sil(rax, xmm0); | |
| 1495 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
| 1496 __ jcc(Assembler::notEqual, L); | |
| 1497 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
| 1498 __ bind(L); | |
| 1499 } | |
| 1500 break; | |
| 1501 case Bytecodes::_d2l: | |
| 1502 { | |
| 1503 Label L; | |
| 1504 __ cvttsd2siq(rax, xmm0); | |
| 1505 // NaN or overflow/underflow? | |
| 1506 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
| 1507 __ jcc(Assembler::notEqual, L); | |
| 1508 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
| 1509 __ bind(L); | |
| 1510 } | |
| 1511 break; | |
| 1512 case Bytecodes::_d2f: | |
| 1513 __ cvtsd2ss(xmm0, xmm0); | |
| 1514 break; | |
| 1515 default: | |
| 1516 ShouldNotReachHere(); | |
| 1517 } | |
| 1518 } | |
| 1519 | |
| 1520 void TemplateTable::lcmp() { | |
| 1521 transition(ltos, itos); | |
| 1522 Label done; | |
| 1523 __ pop_l(rdx); | |
| 1524 __ cmpq(rdx, rax); | |
| 1525 __ movl(rax, -1); | |
| 1526 __ jccb(Assembler::less, done); | |
| 1527 __ setb(Assembler::notEqual, rax); | |
| 1528 __ movzbl(rax, rax); | |
| 1529 __ bind(done); | |
| 1530 } | |
| 1531 | |
| 1532 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1533 Label done; | |
| 1534 if (is_float) { | |
| 1535 // XXX get rid of pop here, use ... reg, mem32 | |
| 1536 __ pop_f(xmm1); | |
| 1537 __ ucomiss(xmm1, xmm0); | |
| 1538 } else { | |
| 1539 // XXX get rid of pop here, use ... reg, mem64 | |
| 1540 __ pop_d(xmm1); | |
| 1541 __ ucomisd(xmm1, xmm0); | |
| 1542 } | |
| 1543 if (unordered_result < 0) { | |
| 1544 __ movl(rax, -1); | |
| 1545 __ jccb(Assembler::parity, done); | |
| 1546 __ jccb(Assembler::below, done); | |
| 1547 __ setb(Assembler::notEqual, rdx); | |
| 1548 __ movzbl(rax, rdx); | |
| 1549 } else { | |
| 1550 __ movl(rax, 1); | |
| 1551 __ jccb(Assembler::parity, done); | |
| 1552 __ jccb(Assembler::above, done); | |
| 1553 __ movl(rax, 0); | |
| 1554 __ jccb(Assembler::equal, done); | |
| 1555 __ decrementl(rax); | |
| 1556 } | |
| 1557 __ bind(done); | |
| 1558 } | |
| 1559 | |
| 1560 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1561 __ get_method(rcx); // rcx holds method | |
| 1562 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
| 1563 // holds bumped taken count | |
| 1564 | |
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1565 const ByteSize be_offset = Method::backedge_counter_offset() + |
| 0 | 1566 InvocationCounter::counter_offset(); |
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1567 const ByteSize inv_offset = Method::invocation_counter_offset() + |
| 0 | 1568 InvocationCounter::counter_offset(); |
| 1569 const int method_offset = frame::interpreter_frame_method_offset * wordSize; | |
| 1570 | |
| 1571 // Load up edx with the branch displacement | |
| 1572 __ movl(rdx, at_bcp(1)); | |
| 1573 __ bswapl(rdx); | |
| 1574 | |
| 1575 if (!is_wide) { | |
| 1576 __ sarl(rdx, 16); | |
| 1577 } | |
| 304 | 1578 __ movl2ptr(rdx, rdx); |
| 0 | 1579 |
| 1580 // Handle all the JSR stuff here, then exit. | |
| 1581 // It's much shorter and cleaner than intermingling with the non-JSR | |
| 605 | 1582 // normal-branch stuff occurring below. |
| 0 | 1583 if (is_jsr) { |
| 1584 // Pre-load the next target bytecode into rbx | |
| 1585 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
| 1586 | |
| 1587 // compute return address as bci in rax | |
| 304 | 1588 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1589 in_bytes(ConstMethod::codes_offset()))); |
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1590 __ subptr(rax, Address(rcx, Method::const_offset())); |
| 0 | 1591 // Adjust the bcp in r13 by the displacement in rdx |
| 304 | 1592 __ addptr(r13, rdx); |
| 0 | 1593 // jsr returns atos that is not an oop |
| 1594 __ push_i(rax); | |
| 1595 __ dispatch_only(vtos); | |
| 1596 return; | |
| 1597 } | |
| 1598 | |
| 1599 // Normal (non-jsr) branch handling | |
| 1600 | |
| 1601 // Adjust the bcp in r13 by the displacement in rdx | |
| 304 | 1602 __ addptr(r13, rdx); |
| 0 | 1603 |
| 1604 assert(UseLoopCounter || !UseOnStackReplacement, | |
| 1605 "on-stack-replacement requires loop counters"); | |
| 1606 Label backedge_counter_overflow; | |
| 1607 Label profile_method; | |
| 1608 Label dispatch; | |
| 1609 if (UseLoopCounter) { | |
| 1610 // increment backedge counter for backward branches | |
| 1611 // rax: MDO | |
| 1612 // ebx: MDO bumped taken-count | |
| 1613 // rcx: method | |
| 1614 // rdx: target offset | |
| 1615 // r13: target bcp | |
| 1616 // r14: locals pointer | |
| 1617 __ testl(rdx, rdx); // check if forward or backward branch | |
| 1618 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
| 1783 | 1619 if (TieredCompilation) { |
| 1620 Label no_mdo; | |
| 1621 int increment = InvocationCounter::count_increment; | |
| 1622 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1623 if (ProfileInterpreter) { | |
| 1624 // Are we profiling? | |
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1625 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
| 1783 | 1626 __ testptr(rbx, rbx); |
| 1627 __ jccb(Assembler::zero, no_mdo); | |
| 1628 // Increment the MDO backedge counter | |
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1629 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1630 in_bytes(InvocationCounter::counter_offset())); |
| 1631 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
| 1632 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 1633 __ jmp(dispatch); | |
| 0 | 1634 } |
| 1783 | 1635 __ bind(no_mdo); |
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1636 // Increment backedge counter in Method* |
| 1783 | 1637 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
| 1638 rax, false, Assembler::zero, &backedge_counter_overflow); | |
| 0 | 1639 } else { |
| 1783 | 1640 // increment counter |
| 1641 __ movl(rax, Address(rcx, be_offset)); // load backedge counter | |
| 1642 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
| 1643 __ movl(Address(rcx, be_offset), rax); // store counter | |
| 1644 | |
| 1645 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
| 1646 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits | |
| 1647 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
| 1648 | |
| 1649 if (ProfileInterpreter) { | |
| 1650 // Test to see if we should create a method data oop | |
| 0 | 1651 __ cmp32(rax, |
| 1783 | 1652 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
| 1653 __ jcc(Assembler::less, dispatch); | |
| 1654 | |
| 1655 // if no method data exists, go to profile method | |
| 1656 __ test_method_data_pointer(rax, profile_method); | |
| 1657 | |
| 1658 if (UseOnStackReplacement) { | |
| 1659 // check for overflow against ebx which is the MDO taken count | |
| 1660 __ cmp32(rbx, | |
| 1661 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1662 __ jcc(Assembler::below, dispatch); | |
| 1663 | |
| 1664 // When ProfileInterpreter is on, the backedge_count comes | |
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1665 // from the MethodData*, which value does not get reset on |
| 1783 | 1666 // the call to frequency_counter_overflow(). To avoid |
| 1667 // excessive calls to the overflow routine while the method is | |
| 1668 // being compiled, add a second test to make sure the overflow | |
| 1669 // function is called only once every overflow_frequency. | |
| 1670 const int overflow_frequency = 1024; | |
| 1671 __ andl(rbx, overflow_frequency - 1); | |
| 1672 __ jcc(Assembler::zero, backedge_counter_overflow); | |
| 1673 | |
| 1674 } | |
| 1675 } else { | |
| 1676 if (UseOnStackReplacement) { | |
| 1677 // check for overflow against eax, which is the sum of the | |
| 1678 // counters | |
| 1679 __ cmp32(rax, | |
| 1680 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
| 1681 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
| 1682 | |
| 1683 } | |
| 0 | 1684 } |
| 1685 } | |
| 1686 __ bind(dispatch); | |
| 1687 } | |
| 1688 | |
| 1689 // Pre-load the next target bytecode into rbx | |
| 1690 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
| 1691 | |
| 1692 // continue with the bytecode @ target | |
| 1693 // eax: return bci for jsr's, unused otherwise | |
| 1694 // ebx: target bytecode | |
| 1695 // r13: target bcp | |
| 1696 __ dispatch_only(vtos); | |
| 1697 | |
| 1698 if (UseLoopCounter) { | |
| 1699 if (ProfileInterpreter) { | |
| 1700 // Out-of-line code to allocate method data oop. | |
| 1701 __ bind(profile_method); | |
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1702 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
| 0 | 1703 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1704 __ set_method_data_pointer_for_bcp(); |
| 0 | 1705 __ jmp(dispatch); |
| 1706 } | |
| 1707 | |
| 1708 if (UseOnStackReplacement) { | |
| 1709 // invocation counter overflow | |
| 1710 __ bind(backedge_counter_overflow); | |
| 304 | 1711 __ negptr(rdx); |
| 1712 __ addptr(rdx, r13); // branch bcp | |
| 0 | 1713 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
| 1714 __ call_VM(noreg, | |
| 1715 CAST_FROM_FN_PTR(address, | |
| 1716 InterpreterRuntime::frequency_counter_overflow), | |
| 1717 rdx); | |
| 1718 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
| 1719 | |
| 1720 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
| 1721 // ebx: target bytecode | |
| 1722 // rdx: scratch | |
| 1723 // r14: locals pointer | |
| 1724 // r13: bcp | |
| 304 | 1725 __ testptr(rax, rax); // test result |
| 0 | 1726 __ jcc(Assembler::zero, dispatch); // no osr if null |
| 1727 // nmethod may have been invalidated (VM may block upon call_VM return) | |
| 1728 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
| 1729 __ cmpl(rcx, InvalidOSREntryBci); | |
| 1730 __ jcc(Assembler::equal, dispatch); | |
| 1731 | |
| 1732 // We have the address of an on stack replacement routine in eax | |
| 1733 // We need to prepare to execute the OSR method. First we must | |
| 1734 // migrate the locals and monitors off of the stack. | |
| 1735 | |
| 304 | 1736 __ mov(r13, rax); // save the nmethod |
| 0 | 1737 |
| 1738 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
| 1739 | |
| 1740 // eax is OSR buffer, move it to expected parameter location | |
| 304 | 1741 __ mov(j_rarg0, rax); |
| 0 | 1742 |
| 1743 // We use j_rarg definitions here so that registers don't conflict as parameter | |
| 1744 // registers change across platforms as we are in the midst of a calling | |
| 1745 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
| 1746 | |
| 1747 const Register retaddr = j_rarg2; | |
| 1748 const Register sender_sp = j_rarg1; | |
| 1749 | |
| 1750 // pop the interpreter frame | |
| 304 | 1751 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
| 0 | 1752 __ leave(); // remove frame anchor |
| 304 | 1753 __ pop(retaddr); // get return address |
| 1754 __ mov(rsp, sender_sp); // set sp to sender sp | |
| 0 | 1755 // Ensure compiled code always sees stack at proper alignment |
| 304 | 1756 __ andptr(rsp, -(StackAlignmentInBytes)); |
| 0 | 1757 |
| 1758 // unlike x86 we need no specialized return from compiled code | |
| 1759 // to the interpreter or the call stub. | |
| 1760 | |
| 1761 // push the return address | |
| 304 | 1762 __ push(retaddr); |
| 0 | 1763 |
| 1764 // and begin the OSR nmethod | |
| 1765 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
| 1766 } | |
| 1767 } | |
| 1768 } | |
| 1769 | |
| 1770 | |
| 1771 void TemplateTable::if_0cmp(Condition cc) { | |
| 1772 transition(itos, vtos); | |
| 1773 // assume branch is more often taken than not (loops use backward branches) | |
| 1774 Label not_taken; | |
| 1775 __ testl(rax, rax); | |
| 1776 __ jcc(j_not(cc), not_taken); | |
| 1777 branch(false, false); | |
| 1778 __ bind(not_taken); | |
| 1779 __ profile_not_taken_branch(rax); | |
| 1780 } | |
| 1781 | |
| 1782 void TemplateTable::if_icmp(Condition cc) { | |
| 1783 transition(itos, vtos); | |
| 1784 // assume branch is more often taken than not (loops use backward branches) | |
| 1785 Label not_taken; | |
| 1786 __ pop_i(rdx); | |
| 1787 __ cmpl(rdx, rax); | |
| 1788 __ jcc(j_not(cc), not_taken); | |
| 1789 branch(false, false); | |
| 1790 __ bind(not_taken); | |
| 1791 __ profile_not_taken_branch(rax); | |
| 1792 } | |
| 1793 | |
| 1794 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1795 transition(atos, vtos); | |
| 1796 // assume branch is more often taken than not (loops use backward branches) | |
| 1797 Label not_taken; | |
| 304 | 1798 __ testptr(rax, rax); |
| 0 | 1799 __ jcc(j_not(cc), not_taken); |
| 1800 branch(false, false); | |
| 1801 __ bind(not_taken); | |
| 1802 __ profile_not_taken_branch(rax); | |
| 1803 } | |
| 1804 | |
| 1805 void TemplateTable::if_acmp(Condition cc) { | |
| 1806 transition(atos, vtos); | |
| 1807 // assume branch is more often taken than not (loops use backward branches) | |
| 1808 Label not_taken; | |
| 1809 __ pop_ptr(rdx); | |
| 304 | 1810 __ cmpptr(rdx, rax); |
| 0 | 1811 __ jcc(j_not(cc), not_taken); |
| 1812 branch(false, false); | |
| 1813 __ bind(not_taken); | |
| 1814 __ profile_not_taken_branch(rax); | |
| 1815 } | |
| 1816 | |
| 1817 void TemplateTable::ret() { | |
| 1818 transition(vtos, vtos); | |
| 1819 locals_index(rbx); | |
| 304 | 1820 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1821 __ profile_ret(rbx, rcx); |
| 1822 __ get_method(rax); | |
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1823 __ movptr(r13, Address(rax, Method::const_offset())); |
| 304 | 1824 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1825 ConstMethod::codes_offset())); |
| 0 | 1826 __ dispatch_next(vtos); |
| 1827 } | |
| 1828 | |
| 1829 void TemplateTable::wide_ret() { | |
| 1830 transition(vtos, vtos); | |
| 1831 locals_index_wide(rbx); | |
| 304 | 1832 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
| 0 | 1833 __ profile_ret(rbx, rcx); |
| 1834 __ get_method(rax); | |
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1835 __ movptr(r13, Address(rax, Method::const_offset())); |
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1836 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
| 0 | 1837 __ dispatch_next(vtos); |
| 1838 } | |
| 1839 | |
| 1840 void TemplateTable::tableswitch() { | |
| 1841 Label default_case, continue_execution; | |
| 1842 transition(itos, vtos); | |
| 1843 // align r13 | |
| 304 | 1844 __ lea(rbx, at_bcp(BytesPerInt)); |
| 1845 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1846 // load lo & hi |
| 1847 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1848 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
| 1849 __ bswapl(rcx); | |
| 1850 __ bswapl(rdx); | |
| 1851 // check against lo & hi | |
| 1852 __ cmpl(rax, rcx); | |
| 1853 __ jcc(Assembler::less, default_case); | |
| 1854 __ cmpl(rax, rdx); | |
| 1855 __ jcc(Assembler::greater, default_case); | |
| 1856 // lookup dispatch offset | |
| 1857 __ subl(rax, rcx); | |
| 1858 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
| 1859 __ profile_switch_case(rax, rbx, rcx); | |
| 1860 // continue execution | |
| 1861 __ bind(continue_execution); | |
| 1862 __ bswapl(rdx); | |
| 304 | 1863 __ movl2ptr(rdx, rdx); |
| 0 | 1864 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1865 __ addptr(r13, rdx); |
| 0 | 1866 __ dispatch_only(vtos); |
| 1867 // handle default | |
| 1868 __ bind(default_case); | |
| 1869 __ profile_switch_default(rax); | |
| 1870 __ movl(rdx, Address(rbx, 0)); | |
| 1871 __ jmp(continue_execution); | |
| 1872 } | |
| 1873 | |
| 1874 void TemplateTable::lookupswitch() { | |
| 1875 transition(itos, itos); | |
| 1876 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1877 } | |
| 1878 | |
| 1879 void TemplateTable::fast_linearswitch() { | |
| 1880 transition(itos, vtos); | |
| 1881 Label loop_entry, loop, found, continue_execution; | |
| 1882 // bswap rax so we can avoid bswapping the table entries | |
| 1883 __ bswapl(rax); | |
| 1884 // align r13 | |
| 304 | 1885 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
| 1886 // this instruction (change offsets | |
| 1887 // below) | |
| 1888 __ andptr(rbx, -BytesPerInt); | |
| 0 | 1889 // set counter |
| 1890 __ movl(rcx, Address(rbx, BytesPerInt)); | |
| 1891 __ bswapl(rcx); | |
| 1892 __ jmpb(loop_entry); | |
| 1893 // table search | |
| 1894 __ bind(loop); | |
| 1895 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
| 1896 __ jcc(Assembler::equal, found); | |
| 1897 __ bind(loop_entry); | |
| 1898 __ decrementl(rcx); | |
| 1899 __ jcc(Assembler::greaterEqual, loop); | |
| 1900 // default case | |
| 1901 __ profile_switch_default(rax); | |
| 1902 __ movl(rdx, Address(rbx, 0)); | |
| 1903 __ jmp(continue_execution); | |
| 1904 // entry found -> get offset | |
| 1905 __ bind(found); | |
| 1906 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
| 1907 __ profile_switch_case(rcx, rax, rbx); | |
| 1908 // continue execution | |
| 1909 __ bind(continue_execution); | |
| 1910 __ bswapl(rdx); | |
| 304 | 1911 __ movl2ptr(rdx, rdx); |
| 0 | 1912 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
| 304 | 1913 __ addptr(r13, rdx); |
| 0 | 1914 __ dispatch_only(vtos); |
| 1915 } | |
| 1916 | |
| 1917 void TemplateTable::fast_binaryswitch() { | |
| 1918 transition(itos, vtos); | |
| 1919 // Implementation using the following core algorithm: | |
| 1920 // | |
| 1921 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1922 // // Binary search according to "Methodik des Programmierens" by | |
| 1923 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1924 // int i = 0; | |
| 1925 // int j = n; | |
| 1926 // while (i+1 < j) { | |
| 1927 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1928 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1929 // // where a stands for the array and assuming that the (inexisting) | |
| 1930 // // element a[n] is infinitely big. | |
| 1931 // int h = (i + j) >> 1; | |
| 1932 // // i < h < j | |
| 1933 // if (key < array[h].fast_match()) { | |
| 1934 // j = h; | |
| 1935 // } else { | |
| 1936 // i = h; | |
| 1937 // } | |
| 1938 // } | |
| 1939 // // R: a[i] <= key < a[i+1] or Q | |
| 1940 // // (i.e., if key is within array, i is the correct index) | |
| 1941 // return i; | |
| 1942 // } | |
| 1943 | |
| 1944 // Register allocation | |
| 1945 const Register key = rax; // already set (tosca) | |
| 1946 const Register array = rbx; | |
| 1947 const Register i = rcx; | |
| 1948 const Register j = rdx; | |
| 1949 const Register h = rdi; | |
| 1950 const Register temp = rsi; | |
| 1951 | |
| 1952 // Find array start | |
| 304 | 1953 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
| 1954 // get rid of this | |
| 1955 // instruction (change | |
| 1956 // offsets below) | |
| 1957 __ andptr(array, -BytesPerInt); | |
| 0 | 1958 |
| 1959 // Initialize i & j | |
| 1960 __ xorl(i, i); // i = 0; | |
| 1961 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
| 1962 | |
| 1963 // Convert j into native byteordering | |
| 1964 __ bswapl(j); | |
| 1965 | |
| 1966 // And start | |
| 1967 Label entry; | |
| 1968 __ jmp(entry); | |
| 1969 | |
| 1970 // binary search loop | |
| 1971 { | |
| 1972 Label loop; | |
| 1973 __ bind(loop); | |
| 1974 // int h = (i + j) >> 1; | |
| 1975 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
| 1976 __ sarl(h, 1); // h = (i + j) >> 1; | |
| 1977 // if (key < array[h].fast_match()) { | |
| 1978 // j = h; | |
| 1979 // } else { | |
| 1980 // i = h; | |
| 1981 // } | |
| 1982 // Convert array[h].match to native byte-ordering before compare | |
| 1983 __ movl(temp, Address(array, h, Address::times_8)); | |
| 1984 __ bswapl(temp); | |
| 1985 __ cmpl(key, temp); | |
| 1986 // j = h if (key < array[h].fast_match()) | |
| 1987 __ cmovl(Assembler::less, j, h); | |
| 1988 // i = h if (key >= array[h].fast_match()) | |
| 1989 __ cmovl(Assembler::greaterEqual, i, h); | |
| 1990 // while (i+1 < j) | |
| 1991 __ bind(entry); | |
| 1992 __ leal(h, Address(i, 1)); // i+1 | |
| 1993 __ cmpl(h, j); // i+1 < j | |
| 1994 __ jcc(Assembler::less, loop); | |
| 1995 } | |
| 1996 | |
| 1997 // end of binary search, result index is i (must check again!) | |
| 1998 Label default_case; | |
| 1999 // Convert array[i].match to native byte-ordering before compare | |
| 2000 __ movl(temp, Address(array, i, Address::times_8)); | |
| 2001 __ bswapl(temp); | |
| 2002 __ cmpl(key, temp); | |
| 2003 __ jcc(Assembler::notEqual, default_case); | |
| 2004 | |
| 2005 // entry found -> j = offset | |
| 2006 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
| 2007 __ profile_switch_case(i, key, array); | |
| 2008 __ bswapl(j); | |
| 304 | 2009 __ movl2ptr(j, j); |
| 0 | 2010 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2011 __ addptr(r13, j); |
| 0 | 2012 __ dispatch_only(vtos); |
| 2013 | |
| 2014 // default case -> j = default offset | |
| 2015 __ bind(default_case); | |
| 2016 __ profile_switch_default(i); | |
| 2017 __ movl(j, Address(array, -2 * BytesPerInt)); | |
| 2018 __ bswapl(j); | |
| 304 | 2019 __ movl2ptr(j, j); |
| 0 | 2020 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
| 304 | 2021 __ addptr(r13, j); |
| 0 | 2022 __ dispatch_only(vtos); |
| 2023 } | |
| 2024 | |
| 2025 | |
| 2026 void TemplateTable::_return(TosState state) { | |
| 2027 transition(state, state); | |
| 2028 assert(_desc->calls_vm(), | |
| 2029 "inconsistent calls_vm information"); // call in remove_activation | |
| 2030 | |
| 2031 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2032 assert(state == vtos, "only valid state"); | |
| 304 | 2033 __ movptr(c_rarg1, aaddress(0)); |
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2034 __ load_klass(rdi, c_rarg1); |
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2035 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
| 0 | 2036 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
| 2037 Label skip_register_finalizer; | |
| 2038 __ jcc(Assembler::zero, skip_register_finalizer); | |
| 2039 | |
| 2040 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
| 2041 | |
| 2042 __ bind(skip_register_finalizer); | |
| 2043 } | |
| 2044 | |
| 2045 __ remove_activation(state, r13); | |
| 2046 __ jmp(r13); | |
| 2047 } | |
| 2048 | |
| 2049 // ---------------------------------------------------------------------------- | |
| 2050 // Volatile variables demand their effects be made known to all CPU's | |
| 2051 // in order. Store buffers on most chips allow reads & writes to | |
| 2052 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
| 2053 // without some kind of memory barrier (i.e., it's not sufficient that | |
| 2054 // the interpreter does not reorder volatile references, the hardware | |
| 2055 // also must not reorder them). | |
| 2056 // | |
| 2057 // According to the new Java Memory Model (JMM): | |
| 2058 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
| 2059 // writes act as aquire & release, so: | |
| 2060 // (2) A read cannot let unrelated NON-volatile memory refs that | |
| 2061 // happen after the read float up to before the read. It's OK for | |
| 2062 // non-volatile memory refs that happen before the volatile read to | |
| 2063 // float down below it. | |
| 2064 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
| 2065 // memory refs that happen BEFORE the write float down to after the | |
| 2066 // write. It's OK for non-volatile memory refs that happen after the | |
| 2067 // volatile write to float up before it. | |
| 2068 // | |
| 2069 // We only put in barriers around volatile refs (they are expensive), | |
| 2070 // not _between_ memory refs (that would require us to track the | |
| 2071 // flavor of the previous memory refs). Requirements (2) and (3) | |
| 2072 // require some barriers before volatile stores and after volatile | |
| 2073 // loads. These nearly cover requirement (1) but miss the | |
| 2074 // volatile-store-volatile-load case. This final case is placed after | |
| 2075 // volatile-stores although it could just as well go before | |
| 2076 // volatile-loads. | |
| 2077 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
| 2078 order_constraint) { | |
| 2079 // Helper function to insert a is-volatile test and memory barrier | |
| 2080 if (os::is_MP()) { // Not needed on single CPU | |
| 2081 __ membar(order_constraint); | |
| 2082 } | |
| 2083 } | |
| 2084 | |
| 1565 | 2085 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2086 Register Rcache, | |
| 2087 Register index, | |
| 2088 size_t index_size) { | |
| 0 | 2089 const Register temp = rbx; |
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2090 assert_different_registers(Rcache, index, temp); |
| 1565 | 2091 |
| 0 | 2092 Label resolved; |
| 1565 | 2093 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2094 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2095 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
| 1108 | 2096 __ jcc(Assembler::equal, resolved); |
| 0 | 2097 |
| 2098 // resolve first time through | |
| 2099 address entry; | |
| 2100 switch (bytecode()) { | |
| 2101 case Bytecodes::_getstatic: | |
| 2102 case Bytecodes::_putstatic: | |
| 2103 case Bytecodes::_getfield: | |
| 2104 case Bytecodes::_putfield: | |
| 2105 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
| 2106 break; | |
| 2107 case Bytecodes::_invokevirtual: | |
| 2108 case Bytecodes::_invokespecial: | |
| 2109 case Bytecodes::_invokestatic: | |
| 2110 case Bytecodes::_invokeinterface: | |
| 2111 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
| 2112 break; | |
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2113 case Bytecodes::_invokehandle: |
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2114 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2115 break; |
| 1108 | 2116 case Bytecodes::_invokedynamic: |
| 2117 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
| 2118 break; | |
| 0 | 2119 default: |
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2120 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
| 0 | 2121 break; |
| 2122 } | |
| 2123 __ movl(temp, (int) bytecode()); | |
| 2124 __ call_VM(noreg, entry, temp); | |
| 2125 | |
| 2126 // Update registers with resolved info | |
| 1565 | 2127 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2128 __ bind(resolved); |
| 2129 } | |
| 2130 | |
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2131 // The cache and index registers must be set before call |
| 0 | 2132 void TemplateTable::load_field_cp_cache_entry(Register obj, |
| 2133 Register cache, | |
| 2134 Register index, | |
| 2135 Register off, | |
| 2136 Register flags, | |
| 2137 bool is_static = false) { | |
| 2138 assert_different_registers(cache, index, flags, off); | |
| 2139 | |
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2140 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2141 // Field offset |
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2142 __ movptr(off, Address(cache, index, Address::times_ptr, |
| 304 | 2143 in_bytes(cp_base_offset + |
| 2144 ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2145 // Flags |
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2146 __ movl(flags, Address(cache, index, Address::times_ptr, |
| 0 | 2147 in_bytes(cp_base_offset + |
| 2148 ConstantPoolCacheEntry::flags_offset()))); | |
| 2149 | |
| 2150 // klass overwrite register | |
| 2151 if (is_static) { | |
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2152 __ movptr(obj, Address(cache, index, Address::times_ptr, |
| 304 | 2153 in_bytes(cp_base_offset + |
| 2154 ConstantPoolCacheEntry::f1_offset()))); | |
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2155 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2156 __ movptr(obj, Address(obj, mirror_offset)); |
| 0 | 2157 } |
| 2158 } | |
| 2159 | |
| 2160 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2161 Register method, | |
| 2162 Register itable_index, | |
| 2163 Register flags, | |
| 2164 bool is_invokevirtual, | |
| 1565 | 2165 bool is_invokevfinal, /*unused*/ |
| 2166 bool is_invokedynamic) { | |
| 0 | 2167 // setup registers |
| 2168 const Register cache = rcx; | |
| 2169 const Register index = rdx; | |
| 2170 assert_different_registers(method, flags); | |
| 2171 assert_different_registers(method, cache, index); | |
| 2172 assert_different_registers(itable_index, flags); | |
| 2173 assert_different_registers(itable_index, cache, index); | |
| 2174 // determine constant pool cache field offsets | |
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2175 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2176 const int method_offset = in_bytes( |
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2177 ConstantPoolCache::base_offset() + |
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2178 ((byte_no == f2_byte) |
| 0 | 2179 ? ConstantPoolCacheEntry::f2_offset() |
| 2180 : ConstantPoolCacheEntry::f1_offset())); | |
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2181 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2182 ConstantPoolCacheEntry::flags_offset()); |
| 2183 // access constant pool cache fields | |
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2184 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2185 ConstantPoolCacheEntry::f2_offset()); |
| 2186 | |
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2187 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2188 resolve_cache_and_index(byte_no, cache, index, index_size); |
| 1565 | 2189 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2190 |
| 0 | 2191 if (itable_index != noreg) { |
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2192 // pick up itable or appendix index from f2 also: |
| 1565 | 2193 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
| 0 | 2194 } |
| 1565 | 2195 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
| 0 | 2196 } |
| 2197 | |
| 2198 // Correct values of the cache and index registers are preserved. | |
| 2199 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
| 2200 bool is_static, bool has_tos) { | |
| 2201 // do the JVMTI work here to avoid disturbing the register state below | |
| 2202 // We use c_rarg registers here because we want to use the register used in | |
| 2203 // the call to the VM | |
| 2204 if (JvmtiExport::can_post_field_access()) { | |
| 2205 // Check to see if a field access watch has been set before we | |
| 2206 // take the time to call into the VM. | |
| 2207 Label L1; | |
| 2208 assert_different_registers(cache, index, rax); | |
| 2209 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2210 __ testl(rax, rax); | |
| 2211 __ jcc(Assembler::zero, L1); | |
| 2212 | |
| 2213 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
| 2214 | |
| 2215 // cache entry pointer | |
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2216 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
| 0 | 2217 __ shll(c_rarg3, LogBytesPerWord); |
| 304 | 2218 __ addptr(c_rarg2, c_rarg3); |
| 0 | 2219 if (is_static) { |
| 2220 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
| 2221 } else { | |
| 304 | 2222 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
| 0 | 2223 __ verify_oop(c_rarg1); |
| 2224 } | |
| 2225 // c_rarg1: object pointer or NULL | |
| 2226 // c_rarg2: cache entry pointer | |
| 2227 // c_rarg3: jvalue object on the stack | |
| 2228 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 2229 InterpreterRuntime::post_field_access), | |
| 2230 c_rarg1, c_rarg2, c_rarg3); | |
| 2231 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2232 __ bind(L1); | |
| 2233 } | |
| 2234 } | |
| 2235 | |
| 2236 void TemplateTable::pop_and_check_object(Register r) { | |
| 2237 __ pop_ptr(r); | |
| 2238 __ null_check(r); // for field access must check obj. | |
| 2239 __ verify_oop(r); | |
| 2240 } | |
| 2241 | |
| 2242 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2243 transition(vtos, vtos); | |
| 2244 | |
| 2245 const Register cache = rcx; | |
| 2246 const Register index = rdx; | |
| 2247 const Register obj = c_rarg3; | |
| 2248 const Register off = rbx; | |
| 2249 const Register flags = rax; | |
| 2250 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
| 2251 | |
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2252 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2253 jvmti_post_field_access(cache, index, is_static, false); |
| 2254 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2255 | |
| 2256 if (!is_static) { | |
| 2257 // obj is on the stack | |
| 2258 pop_and_check_object(obj); | |
| 2259 } | |
| 2260 | |
| 2261 const Address field(obj, off, Address::times_1); | |
| 2262 | |
| 2263 Label Done, notByte, notInt, notShort, notChar, | |
| 2264 notLong, notFloat, notObj, notDouble; | |
| 2265 | |
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2266 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2267 // Make sure we don't need to mask edx after the above shift |
| 0 | 2268 assert(btos == 0, "change code, btos != 0"); |
| 2269 | |
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2270 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2271 __ jcc(Assembler::notZero, notByte); |
| 2272 // btos | |
| 2273 __ load_signed_byte(rax, field); | |
| 2274 __ push(btos); | |
| 2275 // Rewrite bytecode to be faster | |
| 2276 if (!is_static) { | |
| 2277 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
| 2278 } | |
| 2279 __ jmp(Done); | |
| 2280 | |
| 2281 __ bind(notByte); | |
| 2282 __ cmpl(flags, atos); | |
| 2283 __ jcc(Assembler::notEqual, notObj); | |
| 2284 // atos | |
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2285 __ load_heap_oop(rax, field); |
| 0 | 2286 __ push(atos); |
| 2287 if (!is_static) { | |
| 2288 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
| 2289 } | |
| 2290 __ jmp(Done); | |
| 2291 | |
| 2292 __ bind(notObj); | |
| 2293 __ cmpl(flags, itos); | |
| 2294 __ jcc(Assembler::notEqual, notInt); | |
| 2295 // itos | |
| 2296 __ movl(rax, field); | |
| 2297 __ push(itos); | |
| 2298 // Rewrite bytecode to be faster | |
| 2299 if (!is_static) { | |
| 2300 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
| 2301 } | |
| 2302 __ jmp(Done); | |
| 2303 | |
| 2304 __ bind(notInt); | |
| 2305 __ cmpl(flags, ctos); | |
| 2306 __ jcc(Assembler::notEqual, notChar); | |
| 2307 // ctos | |
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2308 __ load_unsigned_short(rax, field); |
| 0 | 2309 __ push(ctos); |
| 2310 // Rewrite bytecode to be faster | |
| 2311 if (!is_static) { | |
| 2312 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
| 2313 } | |
| 2314 __ jmp(Done); | |
| 2315 | |
| 2316 __ bind(notChar); | |
| 2317 __ cmpl(flags, stos); | |
| 2318 __ jcc(Assembler::notEqual, notShort); | |
| 2319 // stos | |
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2320 __ load_signed_short(rax, field); |
| 0 | 2321 __ push(stos); |
| 2322 // Rewrite bytecode to be faster | |
| 2323 if (!is_static) { | |
| 2324 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
| 2325 } | |
| 2326 __ jmp(Done); | |
| 2327 | |
| 2328 __ bind(notShort); | |
| 2329 __ cmpl(flags, ltos); | |
| 2330 __ jcc(Assembler::notEqual, notLong); | |
| 2331 // ltos | |
| 2332 __ movq(rax, field); | |
| 2333 __ push(ltos); | |
| 2334 // Rewrite bytecode to be faster | |
| 2335 if (!is_static) { | |
| 2336 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
| 2337 } | |
| 2338 __ jmp(Done); | |
| 2339 | |
| 2340 __ bind(notLong); | |
| 2341 __ cmpl(flags, ftos); | |
| 2342 __ jcc(Assembler::notEqual, notFloat); | |
| 2343 // ftos | |
| 2344 __ movflt(xmm0, field); | |
| 2345 __ push(ftos); | |
| 2346 // Rewrite bytecode to be faster | |
| 2347 if (!is_static) { | |
| 2348 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
| 2349 } | |
| 2350 __ jmp(Done); | |
| 2351 | |
| 2352 __ bind(notFloat); | |
| 2353 #ifdef ASSERT | |
| 2354 __ cmpl(flags, dtos); | |
| 2355 __ jcc(Assembler::notEqual, notDouble); | |
| 2356 #endif | |
| 2357 // dtos | |
| 2358 __ movdbl(xmm0, field); | |
| 2359 __ push(dtos); | |
| 2360 // Rewrite bytecode to be faster | |
| 2361 if (!is_static) { | |
| 2362 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
| 2363 } | |
| 2364 #ifdef ASSERT | |
| 2365 __ jmp(Done); | |
| 2366 | |
| 2367 __ bind(notDouble); | |
| 2368 __ stop("Bad state"); | |
| 2369 #endif | |
| 2370 | |
| 2371 __ bind(Done); | |
| 2372 // [jk] not needed currently | |
| 2373 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
| 2374 // Assembler::LoadStore)); | |
| 2375 } | |
| 2376 | |
| 2377 | |
| 2378 void TemplateTable::getfield(int byte_no) { | |
| 2379 getfield_or_static(byte_no, false); | |
| 2380 } | |
| 2381 | |
| 2382 void TemplateTable::getstatic(int byte_no) { | |
| 2383 getfield_or_static(byte_no, true); | |
| 2384 } | |
| 2385 | |
| 2386 // The registers cache and index expected to be set before call. | |
| 2387 // The function may destroy various registers, just not the cache and index registers. | |
| 2388 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
| 2389 transition(vtos, vtos); | |
| 2390 | |
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2391 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2392 |
| 2393 if (JvmtiExport::can_post_field_modification()) { | |
| 2394 // Check to see if a field modification watch has been set before | |
| 2395 // we take the time to call into the VM. | |
| 2396 Label L1; | |
| 2397 assert_different_registers(cache, index, rax); | |
| 2398 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2399 __ testl(rax, rax); | |
| 2400 __ jcc(Assembler::zero, L1); | |
| 2401 | |
| 2402 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
| 2403 | |
| 2404 if (is_static) { | |
| 2405 // Life is simple. Null out the object pointer. | |
| 2406 __ xorl(c_rarg1, c_rarg1); | |
| 2407 } else { | |
| 2408 // Life is harder. The stack holds the value on top, followed by | |
| 2409 // the object. We don't know the size of the value, though; it | |
| 2410 // could be one or two words depending on its type. As a result, | |
| 2411 // we must find the type to determine where the object is. | |
| 2412 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
| 2413 Address::times_8, | |
| 2414 in_bytes(cp_base_offset + | |
| 2415 ConstantPoolCacheEntry::flags_offset()))); | |
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2416 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2417 // Make sure we don't need to mask rcx after the above shift |
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2418 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 304 | 2419 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
| 0 | 2420 __ cmpl(c_rarg3, ltos); |
| 304 | 2421 __ cmovptr(Assembler::equal, |
| 2422 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
| 0 | 2423 __ cmpl(c_rarg3, dtos); |
| 304 | 2424 __ cmovptr(Assembler::equal, |
| 2425 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
| 0 | 2426 } |
| 2427 // cache entry pointer | |
| 304 | 2428 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
| 0 | 2429 __ shll(rscratch1, LogBytesPerWord); |
| 304 | 2430 __ addptr(c_rarg2, rscratch1); |
| 0 | 2431 // object (tos) |
| 304 | 2432 __ mov(c_rarg3, rsp); |
| 0 | 2433 // c_rarg1: object pointer set up above (NULL if static) |
| 2434 // c_rarg2: cache entry pointer | |
| 2435 // c_rarg3: jvalue object on the stack | |
| 2436 __ call_VM(noreg, | |
| 2437 CAST_FROM_FN_PTR(address, | |
| 2438 InterpreterRuntime::post_field_modification), | |
| 2439 c_rarg1, c_rarg2, c_rarg3); | |
| 2440 __ get_cache_and_index_at_bcp(cache, index, 1); | |
| 2441 __ bind(L1); | |
| 2442 } | |
| 2443 } | |
| 2444 | |
| 2445 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2446 transition(vtos, vtos); | |
| 2447 | |
| 2448 const Register cache = rcx; | |
| 2449 const Register index = rdx; | |
| 2450 const Register obj = rcx; | |
| 2451 const Register off = rbx; | |
| 2452 const Register flags = rax; | |
| 2453 const Register bc = c_rarg3; | |
| 2454 | |
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2455 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
| 0 | 2456 jvmti_post_field_mod(cache, index, is_static); |
| 2457 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
| 2458 | |
| 2459 // [jk] not needed currently | |
| 2460 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2461 // Assembler::StoreStore)); | |
| 2462 | |
| 2463 Label notVolatile, Done; | |
| 2464 __ movl(rdx, flags); | |
|
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2465 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2466 __ andl(rdx, 0x1); |
| 2467 | |
| 2468 // field address | |
| 2469 const Address field(obj, off, Address::times_1); | |
| 2470 | |
| 2471 Label notByte, notInt, notShort, notChar, | |
| 2472 notLong, notFloat, notObj, notDouble; | |
| 2473 | |
|
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2474 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
| 0 | 2475 |
| 2476 assert(btos == 0, "change code, btos != 0"); | |
|
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2477 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
| 0 | 2478 __ jcc(Assembler::notZero, notByte); |
|
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2479 |
| 0 | 2480 // btos |
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2481 { |
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2482 __ pop(btos); |
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2483 if (!is_static) pop_and_check_object(obj); |
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2484 __ movb(field, rax); |
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2485 if (!is_static) { |
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2486 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2487 } |
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2488 __ jmp(Done); |
| 0 | 2489 } |
| 2490 | |
| 2491 __ bind(notByte); | |
| 2492 __ cmpl(flags, atos); | |
| 2493 __ jcc(Assembler::notEqual, notObj); | |
|
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2494 |
| 0 | 2495 // atos |
|
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2496 { |
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2497 __ pop(atos); |
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2498 if (!is_static) pop_and_check_object(obj); |
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2499 // Store into the field |
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2500 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2501 if (!is_static) { |
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2502 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2503 } |
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2504 __ jmp(Done); |
| 0 | 2505 } |
| 2506 | |
| 2507 __ bind(notObj); | |
| 2508 __ cmpl(flags, itos); | |
| 2509 __ jcc(Assembler::notEqual, notInt); | |
|
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2510 |
| 0 | 2511 // itos |
|
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2512 { |
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2513 __ pop(itos); |
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2514 if (!is_static) pop_and_check_object(obj); |
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2515 __ movl(field, rax); |
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2516 if (!is_static) { |
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2517 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2518 } |
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2519 __ jmp(Done); |
| 0 | 2520 } |
| 2521 | |
| 2522 __ bind(notInt); | |
| 2523 __ cmpl(flags, ctos); | |
| 2524 __ jcc(Assembler::notEqual, notChar); | |
|
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2525 |
| 0 | 2526 // ctos |
|
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2527 { |
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2528 __ pop(ctos); |
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2529 if (!is_static) pop_and_check_object(obj); |
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2530 __ movw(field, rax); |
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2531 if (!is_static) { |
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2532 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2533 } |
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2534 __ jmp(Done); |
| 0 | 2535 } |
| 2536 | |
| 2537 __ bind(notChar); | |
| 2538 __ cmpl(flags, stos); | |
| 2539 __ jcc(Assembler::notEqual, notShort); | |
|
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2540 |
| 0 | 2541 // stos |
|
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2542 { |
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2543 __ pop(stos); |
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2544 if (!is_static) pop_and_check_object(obj); |
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2545 __ movw(field, rax); |
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2546 if (!is_static) { |
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2547 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
|
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2548 } |
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2549 __ jmp(Done); |
| 0 | 2550 } |
| 2551 | |
| 2552 __ bind(notShort); | |
| 2553 __ cmpl(flags, ltos); | |
| 2554 __ jcc(Assembler::notEqual, notLong); | |
|
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2555 |
| 0 | 2556 // ltos |
|
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2557 { |
|
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2558 __ pop(ltos); |
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2559 if (!is_static) pop_and_check_object(obj); |
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2560 __ movq(field, rax); |
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2561 if (!is_static) { |
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2562 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
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2563 } |
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2564 __ jmp(Done); |
| 0 | 2565 } |
| 2566 | |
| 2567 __ bind(notLong); | |
| 2568 __ cmpl(flags, ftos); | |
| 2569 __ jcc(Assembler::notEqual, notFloat); | |
|
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2570 |
| 0 | 2571 // ftos |
|
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2572 { |
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2573 __ pop(ftos); |
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2574 if (!is_static) pop_and_check_object(obj); |
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2575 __ movflt(field, xmm0); |
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2576 if (!is_static) { |
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2577 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
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2578 } |
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2579 __ jmp(Done); |
| 0 | 2580 } |
| 2581 | |
| 2582 __ bind(notFloat); | |
| 2583 #ifdef ASSERT | |
| 2584 __ cmpl(flags, dtos); | |
| 2585 __ jcc(Assembler::notEqual, notDouble); | |
| 2586 #endif | |
|
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2587 |
| 0 | 2588 // dtos |
|
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2589 { |
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2590 __ pop(dtos); |
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2591 if (!is_static) pop_and_check_object(obj); |
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2592 __ movdbl(field, xmm0); |
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2593 if (!is_static) { |
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2594 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
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2595 } |
| 0 | 2596 } |
| 2597 | |
| 2598 #ifdef ASSERT | |
| 2599 __ jmp(Done); | |
| 2600 | |
| 2601 __ bind(notDouble); | |
| 2602 __ stop("Bad state"); | |
| 2603 #endif | |
| 2604 | |
| 2605 __ bind(Done); | |
|
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|
2606 |
| 0 | 2607 // Check for volatile store |
| 2608 __ testl(rdx, rdx); | |
| 2609 __ jcc(Assembler::zero, notVolatile); | |
| 2610 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2611 Assembler::StoreStore)); | |
| 2612 __ bind(notVolatile); | |
| 2613 } | |
| 2614 | |
| 2615 void TemplateTable::putfield(int byte_no) { | |
| 2616 putfield_or_static(byte_no, false); | |
| 2617 } | |
| 2618 | |
| 2619 void TemplateTable::putstatic(int byte_no) { | |
| 2620 putfield_or_static(byte_no, true); | |
| 2621 } | |
| 2622 | |
| 2623 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2624 if (JvmtiExport::can_post_field_modification()) { | |
| 2625 // Check to see if a field modification watch has been set before | |
| 2626 // we take the time to call into the VM. | |
| 2627 Label L2; | |
| 2628 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
| 2629 __ testl(c_rarg3, c_rarg3); | |
| 2630 __ jcc(Assembler::zero, L2); | |
| 2631 __ pop_ptr(rbx); // copy the object pointer from tos | |
| 2632 __ verify_oop(rbx); | |
| 2633 __ push_ptr(rbx); // put the object pointer back on tos | |
|
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|
2634 // Save tos values before call_VM() clobbers them. Since we have |
|
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2635 // to do it for every data type, we use the saved values as the |
|
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|
2636 // jvalue object. |
| 0 | 2637 switch (bytecode()) { // load values into the jvalue object |
|
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2638 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
|
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|
2639 case Bytecodes::_fast_bputfield: // fall through |
| 0 | 2640 case Bytecodes::_fast_sputfield: // fall through |
|
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2641 case Bytecodes::_fast_cputfield: // fall through |
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2642 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
|
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2643 case Bytecodes::_fast_dputfield: __ push_d(); break; |
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2644 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2645 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
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|
2646 |
| 0 | 2647 default: |
| 2648 ShouldNotReachHere(); | |
| 2649 } | |
|
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|
2650 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
| 0 | 2651 // access constant pool cache entry |
| 2652 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
| 2653 __ verify_oop(rbx); | |
| 2654 // rbx: object pointer copied above | |
| 2655 // c_rarg2: cache entry pointer | |
| 2656 // c_rarg3: jvalue object on the stack | |
| 2657 __ call_VM(noreg, | |
| 2658 CAST_FROM_FN_PTR(address, | |
| 2659 InterpreterRuntime::post_field_modification), | |
| 2660 rbx, c_rarg2, c_rarg3); | |
|
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2661 |
|
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|
2662 switch (bytecode()) { // restore tos values |
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2663 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
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2664 case Bytecodes::_fast_bputfield: // fall through |
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2665 case Bytecodes::_fast_sputfield: // fall through |
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2666 case Bytecodes::_fast_cputfield: // fall through |
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2667 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
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2668 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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2669 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2670 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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|
2671 } |
| 0 | 2672 __ bind(L2); |
| 2673 } | |
| 2674 } | |
| 2675 | |
| 2676 void TemplateTable::fast_storefield(TosState state) { | |
| 2677 transition(state, vtos); | |
| 2678 | |
|
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2679 ByteSize base = ConstantPoolCache::base_offset(); |
| 0 | 2680 |
| 2681 jvmti_post_fast_field_mod(); | |
| 2682 | |
| 2683 // access constant pool cache | |
| 2684 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2685 | |
| 2686 // test for volatile with rdx | |
| 2687 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
| 2688 in_bytes(base + | |
| 2689 ConstantPoolCacheEntry::flags_offset()))); | |
| 2690 | |
| 2691 // replace index with field offset from cache entry | |
| 304 | 2692 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
| 2693 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
| 0 | 2694 |
| 2695 // [jk] not needed currently | |
| 2696 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
| 2697 // Assembler::StoreStore)); | |
| 2698 | |
| 2699 Label notVolatile; | |
|
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|
2700 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2701 __ andl(rdx, 0x1); |
| 2702 | |
| 2703 // Get object from stack | |
| 2704 pop_and_check_object(rcx); | |
| 2705 | |
| 2706 // field address | |
| 2707 const Address field(rcx, rbx, Address::times_1); | |
| 2708 | |
| 2709 // access field | |
| 2710 switch (bytecode()) { | |
| 2711 case Bytecodes::_fast_aputfield: | |
|
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|
2712 do_oop_store(_masm, field, rax, _bs->kind(), false); |
| 0 | 2713 break; |
| 2714 case Bytecodes::_fast_lputfield: | |
| 2715 __ movq(field, rax); | |
| 2716 break; | |
| 2717 case Bytecodes::_fast_iputfield: | |
| 2718 __ movl(field, rax); | |
| 2719 break; | |
| 2720 case Bytecodes::_fast_bputfield: | |
| 2721 __ movb(field, rax); | |
| 2722 break; | |
| 2723 case Bytecodes::_fast_sputfield: | |
| 2724 // fall through | |
| 2725 case Bytecodes::_fast_cputfield: | |
| 2726 __ movw(field, rax); | |
| 2727 break; | |
| 2728 case Bytecodes::_fast_fputfield: | |
| 2729 __ movflt(field, xmm0); | |
| 2730 break; | |
| 2731 case Bytecodes::_fast_dputfield: | |
| 2732 __ movdbl(field, xmm0); | |
| 2733 break; | |
| 2734 default: | |
| 2735 ShouldNotReachHere(); | |
| 2736 } | |
| 2737 | |
| 2738 // Check for volatile store | |
| 2739 __ testl(rdx, rdx); | |
| 2740 __ jcc(Assembler::zero, notVolatile); | |
| 2741 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
| 2742 Assembler::StoreStore)); | |
| 2743 __ bind(notVolatile); | |
| 2744 } | |
| 2745 | |
| 2746 | |
| 2747 void TemplateTable::fast_accessfield(TosState state) { | |
| 2748 transition(atos, state); | |
| 2749 | |
| 2750 // Do the JVMTI work here to avoid disturbing the register state below | |
| 2751 if (JvmtiExport::can_post_field_access()) { | |
| 2752 // Check to see if a field access watch has been set before we | |
| 2753 // take the time to call into the VM. | |
| 2754 Label L1; | |
| 2755 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
| 2756 __ testl(rcx, rcx); | |
| 2757 __ jcc(Assembler::zero, L1); | |
| 2758 // access constant pool cache entry | |
| 2759 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
|
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|
2760 __ verify_oop(rax); |
|
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|
2761 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
| 304 | 2762 __ mov(c_rarg1, rax); |
| 0 | 2763 // c_rarg1: object pointer copied above |
| 2764 // c_rarg2: cache entry pointer | |
| 2765 __ call_VM(noreg, | |
| 2766 CAST_FROM_FN_PTR(address, | |
| 2767 InterpreterRuntime::post_field_access), | |
| 2768 c_rarg1, c_rarg2); | |
|
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|
2769 __ pop_ptr(rax); // restore object pointer |
| 0 | 2770 __ bind(L1); |
| 2771 } | |
| 2772 | |
| 2773 // access constant pool cache | |
| 2774 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
| 2775 // replace index with field offset from cache entry | |
| 2776 // [jk] not needed currently | |
| 2777 // if (os::is_MP()) { | |
| 2778 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
|
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2779 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2780 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2781 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2782 // __ andl(rdx, 0x1); |
| 2783 // } | |
| 304 | 2784 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
|
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|
2785 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2786 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2787 |
| 2788 // rax: object | |
| 2789 __ verify_oop(rax); | |
| 2790 __ null_check(rax); | |
| 2791 Address field(rax, rbx, Address::times_1); | |
| 2792 | |
| 2793 // access field | |
| 2794 switch (bytecode()) { | |
| 2795 case Bytecodes::_fast_agetfield: | |
|
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|
2796 __ load_heap_oop(rax, field); |
| 0 | 2797 __ verify_oop(rax); |
| 2798 break; | |
| 2799 case Bytecodes::_fast_lgetfield: | |
| 2800 __ movq(rax, field); | |
| 2801 break; | |
| 2802 case Bytecodes::_fast_igetfield: | |
| 2803 __ movl(rax, field); | |
| 2804 break; | |
| 2805 case Bytecodes::_fast_bgetfield: | |
| 2806 __ movsbl(rax, field); | |
| 2807 break; | |
| 2808 case Bytecodes::_fast_sgetfield: | |
|
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|
2809 __ load_signed_short(rax, field); |
| 0 | 2810 break; |
| 2811 case Bytecodes::_fast_cgetfield: | |
|
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|
2812 __ load_unsigned_short(rax, field); |
| 0 | 2813 break; |
| 2814 case Bytecodes::_fast_fgetfield: | |
| 2815 __ movflt(xmm0, field); | |
| 2816 break; | |
| 2817 case Bytecodes::_fast_dgetfield: | |
| 2818 __ movdbl(xmm0, field); | |
| 2819 break; | |
| 2820 default: | |
| 2821 ShouldNotReachHere(); | |
| 2822 } | |
| 2823 // [jk] not needed currently | |
| 2824 // if (os::is_MP()) { | |
| 2825 // Label notVolatile; | |
| 2826 // __ testl(rdx, rdx); | |
| 2827 // __ jcc(Assembler::zero, notVolatile); | |
| 2828 // __ membar(Assembler::LoadLoad); | |
| 2829 // __ bind(notVolatile); | |
| 2830 //}; | |
| 2831 } | |
| 2832 | |
| 2833 void TemplateTable::fast_xaccess(TosState state) { | |
| 2834 transition(vtos, state); | |
| 2835 | |
| 2836 // get receiver | |
| 304 | 2837 __ movptr(rax, aaddress(0)); |
| 0 | 2838 // access constant pool cache |
| 2839 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
| 304 | 2840 __ movptr(rbx, |
| 2841 Address(rcx, rdx, Address::times_8, | |
|
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2842 in_bytes(ConstantPoolCache::base_offset() + |
| 304 | 2843 ConstantPoolCacheEntry::f2_offset()))); |
| 0 | 2844 // make sure exception is reported in correct bcp range (getfield is |
| 2845 // next instruction) | |
| 304 | 2846 __ increment(r13); |
| 0 | 2847 __ null_check(rax); |
| 2848 switch (state) { | |
| 2849 case itos: | |
| 2850 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
| 2851 break; | |
| 2852 case atos: | |
|
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2853 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
| 0 | 2854 __ verify_oop(rax); |
| 2855 break; | |
| 2856 case ftos: | |
| 2857 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
| 2858 break; | |
| 2859 default: | |
| 2860 ShouldNotReachHere(); | |
| 2861 } | |
| 2862 | |
| 2863 // [jk] not needed currently | |
| 2864 // if (os::is_MP()) { | |
| 2865 // Label notVolatile; | |
| 2866 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
|
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2867 // in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2868 // ConstantPoolCacheEntry::flags_offset()))); |
|
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2869 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
| 0 | 2870 // __ testl(rdx, 0x1); |
| 2871 // __ jcc(Assembler::zero, notVolatile); | |
| 2872 // __ membar(Assembler::LoadLoad); | |
| 2873 // __ bind(notVolatile); | |
| 2874 // } | |
| 2875 | |
| 304 | 2876 __ decrement(r13); |
| 0 | 2877 } |
| 2878 | |
| 2879 | |
| 2880 | |
| 2881 //----------------------------------------------------------------------------- | |
| 2882 // Calls | |
| 2883 | |
| 2884 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2885 // implemented elsewhere | |
| 2886 ShouldNotReachHere(); | |
| 2887 } | |
| 2888 | |
|
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2889 void TemplateTable::prepare_invoke(int byte_no, |
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2890 Register method, // linked method (or i-klass) |
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2891 Register index, // itable index, MethodType, etc. |
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2892 Register recv, // if caller wants to see it |
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2893 Register flags // if caller wants to test it |
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|
2894 ) { |
| 0 | 2895 // determine flags |
|
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2896 const Bytecodes::Code code = bytecode(); |
| 0 | 2897 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
| 1108 | 2898 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
|
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2899 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
| 0 | 2900 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
| 2901 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
|
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2902 const bool load_receiver = (recv != noreg); |
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2903 const bool save_flags = (flags != noreg); |
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2904 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
|
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2905 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
|
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|
2906 assert(flags == noreg || flags == rdx, ""); |
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|
2907 assert(recv == noreg || recv == rcx, ""); |
|
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2908 |
| 0 | 2909 // setup registers & access constant pool cache |
|
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|
2910 if (recv == noreg) recv = rcx; |
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|
2911 if (flags == noreg) flags = rdx; |
| 0 | 2912 assert_different_registers(method, index, recv, flags); |
| 2913 | |
| 2914 // save 'interpreter return address' | |
| 2915 __ save_bcp(); | |
| 2916 | |
| 1565 | 2917 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
| 0 | 2918 |
|
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2919 // maybe push appendix to arguments (just before return address) |
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2920 if (is_invokedynamic || is_invokehandle) { |
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2921 Label L_no_push; |
|
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2922 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
|
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2923 __ jcc(Assembler::zero, L_no_push); |
|
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2924 // Push the appendix as a trailing parameter. |
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2925 // This must be done before we get the receiver, |
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2926 // since the parameter_size includes it. |
|
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2927 __ push(rbx); |
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2928 __ mov(rbx, index); |
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2929 __ load_resolved_reference_at_index(index, rbx); |
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2930 __ pop(rbx); |
|
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2931 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2932 __ bind(L_no_push); |
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2933 } |
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2934 |
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2935 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2936 // Note: no return address pushed yet |
| 0 | 2937 if (load_receiver) { |
| 2938 __ movl(recv, flags); | |
|
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2939 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2940 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2941 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2942 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
| 1304 | 2943 __ movptr(recv, recv_addr); |
| 2944 __ verify_oop(recv); | |
| 0 | 2945 } |
| 2946 | |
| 2947 if (save_flags) { | |
| 2948 __ movl(r13, flags); | |
| 2949 } | |
| 2950 | |
| 2951 // compute return type | |
|
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2952 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2953 // Make sure we don't need to mask flags after the above shift |
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2954 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2955 // load return address |
| 2956 { | |
|
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2957 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
|
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2958 (address)Interpreter::return_5_addrs_by_index_table() : |
|
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|
2959 (address)Interpreter::return_3_addrs_by_index_table(); |
| 1108 | 2960 ExternalAddress table(table_addr); |
| 2961 __ lea(rscratch1, table); | |
| 2962 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
| 0 | 2963 } |
| 2964 | |
| 2965 // push return address | |
| 304 | 2966 __ push(flags); |
| 0 | 2967 |
|
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2968 // Restore flags value from the constant pool cache, and restore rsi |
| 0 | 2969 // for later null checks. r13 is the bytecode pointer |
| 2970 if (save_flags) { | |
| 2971 __ movl(flags, r13); | |
| 2972 __ restore_bcp(); | |
| 2973 } | |
| 2974 } | |
| 2975 | |
| 2976 | |
| 2977 void TemplateTable::invokevirtual_helper(Register index, | |
| 2978 Register recv, | |
| 2979 Register flags) { | |
| 1783 | 2980 // Uses temporary registers rax, rdx |
| 2981 assert_different_registers(index, recv, rax, rdx); | |
|
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2982 assert(index == rbx, ""); |
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2983 assert(recv == rcx, ""); |
| 0 | 2984 |
| 2985 // Test for an invoke of a final method | |
| 2986 Label notFinal; | |
| 2987 __ movl(rax, flags); | |
|
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2988 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
| 0 | 2989 __ jcc(Assembler::zero, notFinal); |
| 2990 | |
| 2991 const Register method = index; // method must be rbx | |
| 2992 assert(method == rbx, | |
|
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2993 "Method* must be rbx for interpreter calling convention"); |
| 0 | 2994 |
| 2995 // do the call - the index is actually the method to call | |
|
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2996 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
| 0 | 2997 |
| 2998 // It's final, need a null check here! | |
| 2999 __ null_check(recv); | |
| 3000 | |
| 3001 // profile this call | |
| 3002 __ profile_final_call(rax); | |
| 3003 | |
| 3004 __ jump_from_interpreted(method, rax); | |
| 3005 | |
| 3006 __ bind(notFinal); | |
| 3007 | |
| 3008 // get receiver klass | |
| 3009 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
|
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|
3010 __ load_klass(rax, recv); |
| 0 | 3011 |
| 3012 // profile this call | |
| 3013 __ profile_virtual_call(rax, r14, rdx); | |
| 3014 | |
|
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3015 // get target Method* & entry point |
|
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|
3016 __ lookup_virtual_method(rax, index, method); |
| 0 | 3017 __ jump_from_interpreted(method, rdx); |
| 3018 } | |
| 3019 | |
| 3020 | |
| 3021 void TemplateTable::invokevirtual(int byte_no) { | |
| 3022 transition(vtos, vtos); | |
| 1565 | 3023 assert(byte_no == f2_byte, "use this argument"); |
|
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3024 prepare_invoke(byte_no, |
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|
3025 rbx, // method or vtable index |
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3026 noreg, // unused itable index |
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|
3027 rcx, rdx); // recv, flags |
| 0 | 3028 |
| 3029 // rbx: index | |
| 3030 // rcx: receiver | |
| 3031 // rdx: flags | |
| 3032 | |
| 3033 invokevirtual_helper(rbx, rcx, rdx); | |
| 3034 } | |
| 3035 | |
| 3036 | |
| 3037 void TemplateTable::invokespecial(int byte_no) { | |
| 3038 transition(vtos, vtos); | |
| 1565 | 3039 assert(byte_no == f1_byte, "use this argument"); |
|
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3040 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
|
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|
3041 rcx); // get receiver also for null check |
|
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3042 __ verify_oop(rcx); |
|
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|
3043 __ null_check(rcx); |
| 0 | 3044 // do the call |
| 3045 __ profile_call(rax); | |
| 3046 __ jump_from_interpreted(rbx, rax); | |
| 3047 } | |
| 3048 | |
| 3049 | |
| 3050 void TemplateTable::invokestatic(int byte_no) { | |
| 3051 transition(vtos, vtos); | |
| 1565 | 3052 assert(byte_no == f1_byte, "use this argument"); |
|
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3053 prepare_invoke(byte_no, rbx); // get f1 Method* |
| 0 | 3054 // do the call |
| 3055 __ profile_call(rax); | |
| 3056 __ jump_from_interpreted(rbx, rax); | |
| 3057 } | |
| 3058 | |
| 3059 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3060 transition(vtos, vtos); | |
| 1565 | 3061 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3062 __ stop("fast_invokevfinal not used on amd64"); |
| 3063 } | |
| 3064 | |
| 3065 void TemplateTable::invokeinterface(int byte_no) { | |
| 3066 transition(vtos, vtos); | |
| 1565 | 3067 assert(byte_no == f1_byte, "use this argument"); |
|
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3068 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
|
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|
3069 rcx, rdx); // recv, flags |
|
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|
3070 |
|
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|
3071 // rax: interface klass (from f1) |
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|
3072 // rbx: itable index (from f2) |
| 0 | 3073 // rcx: receiver |
| 3074 // rdx: flags | |
| 3075 | |
| 3076 // Special case of invokeinterface called for virtual method of | |
| 3077 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3078 // This code isn't produced by javac, but could be produced by | |
| 3079 // another compliant java compiler. | |
| 3080 Label notMethod; | |
| 3081 __ movl(r14, rdx); | |
|
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|
3082 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
| 0 | 3083 __ jcc(Assembler::zero, notMethod); |
| 3084 | |
| 3085 invokevirtual_helper(rbx, rcx, rdx); | |
| 3086 __ bind(notMethod); | |
| 3087 | |
| 3088 // Get receiver klass into rdx - also a null check | |
|
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|
3089 __ restore_locals(); // restore r14 |
|
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|
3090 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
|
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|
3091 __ load_klass(rdx, rcx); |
| 0 | 3092 |
| 3093 // profile this call | |
| 3094 __ profile_virtual_call(rdx, r13, r14); | |
| 3095 | |
|
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|
3096 Label no_such_interface, no_such_method; |
|
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|
3097 |
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|
3098 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
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|
3099 rdx, rax, rbx, |
|
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|
3100 // outputs: method, scan temp. reg |
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|
3101 rbx, r13, |
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|
3102 no_such_interface); |
|
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|
3103 |
|
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3104 // rbx: Method* to call |
|
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3105 // rcx: receiver |
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3106 // Check for abstract method error |
|
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|
3107 // Note: This should be done more efficiently via a throw_abstract_method_error |
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|
3108 // interpreter entry point and a conditional jump to it in case of a null |
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|
3109 // method. |
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|
3110 __ testptr(rbx, rbx); |
|
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|
3111 __ jcc(Assembler::zero, no_such_method); |
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|
3112 |
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|
3113 // do the call |
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|
3114 // rcx: receiver |
|
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3115 // rbx,: Method* |
|
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|
3116 __ jump_from_interpreted(rbx, rdx); |
|
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|
3117 __ should_not_reach_here(); |
|
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|
3118 |
|
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|
3119 // exception handling code follows... |
|
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|
3120 // note: must restore interpreter registers to canonical |
|
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|
3121 // state for exception handling to work correctly! |
|
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|
3122 |
|
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|
3123 __ bind(no_such_method); |
| 0 | 3124 // throw exception |
|
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|
3125 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
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|
3126 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
|
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|
3127 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
|
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|
3128 __ 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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diff
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|
3129 // the call_VM checks for exception, so we should never return here. |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3130 __ should_not_reach_here(); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3131 |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3132 __ bind(no_such_interface); |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3133 // throw exception |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
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|
3134 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
|
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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diff
changeset
|
3135 __ 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
|
3136 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
| 0 | 3137 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
| 3138 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3139 // the call_VM checks for exception, so we should never return here. | |
| 3140 __ should_not_reach_here(); | |
| 3141 } | |
| 3142 | |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3143 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3144 void TemplateTable::invokehandle(int byte_no) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3145 transition(vtos, vtos); |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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|
3146 assert(byte_no == f1_byte, "use this argument"); |
|
6266
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diff
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|
3147 const Register rbx_method = rbx; // f2 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3148 const Register rax_mtype = rax; // f1 |
|
1d7922586cf6
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|
3149 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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|
3150 const Register rdx_flags = rdx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3151 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3152 if (!EnableInvokeDynamic) { |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3153 // rewriter does not generate this bytecode |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3154 __ should_not_reach_here(); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3155 return; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3156 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3157 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3158 prepare_invoke(byte_no, |
|
6725
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changeset
|
3159 rbx_method, rax_mtype, // get f2 Method*, f1 MethodType |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3160 rcx_recv); |
|
6740
75f33eecc1b3
7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
parents:
6725
diff
changeset
|
3161 __ verify_method_ptr(rbx_method); |
|
6266
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7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3162 __ verify_oop(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3163 __ null_check(rcx_recv); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3164 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3165 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3166 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3167 // FIXME: profile the LambdaForm also |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3168 __ profile_final_call(rax); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3169 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3170 __ jump_from_interpreted(rbx_method, rdx); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3171 } |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3172 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3173 |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3174 void TemplateTable::invokedynamic(int byte_no) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3175 transition(vtos, vtos); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3176 assert(byte_no == f1_byte, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3177 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3178 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3179 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3180 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3181 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3182 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3183 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3184 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3185 __ should_not_reach_here(); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3186 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3187 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3188 |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3189 const Register rbx_method = rbx; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3190 const Register rax_callsite = rax; |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3191 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3192 prepare_invoke(byte_no, rbx_method, rax_callsite); |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3193 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3194 // rax: CallSite object (from cpool->resolved_references[]) |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3195 // rbx: MH.linkToCallSite method (from f2) |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3196 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3197 // Note: rax_callsite is already pushed by prepare_invoke |
| 1846 | 3198 |
|
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3199 // %%% should make a type profile for any invokedynamic that takes a ref argument |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3200 // profile this call |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3201 __ profile_call(r13); |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3202 |
|
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3203 __ verify_oop(rax_callsite); |
|
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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parents:
5995
diff
changeset
|
3204 |
|
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
5995
diff
changeset
|
3205 __ jump_from_interpreted(rbx_method, rdx); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3206 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3207 |
|
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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622
diff
changeset
|
3208 |
| 0 | 3209 //----------------------------------------------------------------------------- |
| 3210 // Allocation | |
| 3211 | |
| 3212 void TemplateTable::_new() { | |
| 3213 transition(vtos, atos); | |
| 3214 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
| 3215 Label slow_case; | |
| 3216 Label done; | |
| 3217 Label initialize_header; | |
| 3218 Label initialize_object; // including clearing the fields | |
| 3219 Label allocate_shared; | |
| 3220 | |
| 3221 __ get_cpool_and_tags(rsi, rax); | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3222 // Make sure the class we're about to instantiate has been resolved. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3223 // This is done before loading InstanceKlass to be consistent with the order |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3224 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3225 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 3226 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
| 3227 JVM_CONSTANT_Class); | |
| 3228 __ jcc(Assembler::notEqual, slow_case); | |
| 3229 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3230 // get InstanceKlass |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3231 __ movptr(rsi, Address(rsi, rdx, |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3232 Address::times_8, sizeof(ConstantPool))); |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3233 |
| 0 | 3234 // make sure klass is initialized & doesn't have finalizer |
| 3235 // make sure klass is fully initialized | |
|
4739
52b5d32fbfaf
7117052: instanceKlass::_init_state can be u1 type
coleenp
parents:
3852
diff
changeset
|
3236 __ cmpb(Address(rsi, |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3237 InstanceKlass::init_state_offset()), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3238 InstanceKlass::fully_initialized); |
| 0 | 3239 __ jcc(Assembler::notEqual, slow_case); |
| 3240 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3241 // get instance_size in InstanceKlass (scaled to a count of bytes) |
| 0 | 3242 __ movl(rdx, |
| 3243 Address(rsi, | |
|
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3852
diff
changeset
|
3244 Klass::layout_helper_offset())); |
| 0 | 3245 // test to see if it has a finalizer or is malformed in some way |
| 3246 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
| 3247 __ jcc(Assembler::notZero, slow_case); | |
| 3248 | |
| 3249 // Allocate the instance | |
| 3250 // 1) Try to allocate in the TLAB | |
| 3251 // 2) if fail and the object is large allocate in the shared Eden | |
| 3252 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3253 // (creates a new TLAB, etc.) | |
| 3254 | |
| 3255 const bool allow_shared_alloc = | |
| 3256 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3257 | |
| 3258 if (UseTLAB) { | |
| 304 | 3259 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
| 3260 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
| 3261 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
| 0 | 3262 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
| 304 | 3263 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
| 0 | 3264 if (ZeroTLAB) { |
| 3265 // the fields have been already cleared | |
| 3266 __ jmp(initialize_header); | |
| 3267 } else { | |
| 3268 // initialize both the header and fields | |
| 3269 __ jmp(initialize_object); | |
| 3270 } | |
| 3271 } | |
| 3272 | |
| 3273 // Allocation in the shared Eden, if allowed. | |
| 3274 // | |
| 3275 // rdx: instance size in bytes | |
| 3276 if (allow_shared_alloc) { | |
| 3277 __ bind(allocate_shared); | |
| 3278 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3279 ExternalAddress top((address)Universe::heap()->top_addr()); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
113
diff
changeset
|
3280 ExternalAddress end((address)Universe::heap()->end_addr()); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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113
diff
changeset
|
3281 |
| 0 | 3282 const Register RtopAddr = rscratch1; |
| 3283 const Register RendAddr = rscratch2; | |
| 3284 | |
| 3285 __ lea(RtopAddr, top); | |
| 3286 __ lea(RendAddr, end); | |
| 304 | 3287 __ movptr(rax, Address(RtopAddr, 0)); |
| 0 | 3288 |
| 3289 // For retries rax gets set by cmpxchgq | |
| 3290 Label retry; | |
| 3291 __ bind(retry); | |
| 304 | 3292 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
| 3293 __ cmpptr(rbx, Address(RendAddr, 0)); | |
| 0 | 3294 __ jcc(Assembler::above, slow_case); |
| 3295 | |
| 3296 // Compare rax with the top addr, and if still equal, store the new | |
| 3297 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
| 3298 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
| 3299 // | |
| 3300 // rax: object begin | |
| 3301 // rbx: object end | |
| 3302 // rdx: instance size in bytes | |
| 3303 if (os::is_MP()) { | |
| 3304 __ lock(); | |
| 3305 } | |
| 304 | 3306 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
| 0 | 3307 |
| 3308 // if someone beat us on the allocation, try again, otherwise continue | |
| 3309 __ jcc(Assembler::notEqual, retry); | |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1976
diff
changeset
|
3310 |
|
b1a2afa37ec4
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phh
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1976
diff
changeset
|
3311 __ incr_allocated_bytes(r15_thread, rdx, 0); |
| 0 | 3312 } |
| 3313 | |
| 3314 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3315 // The object is initialized before the header. If the object size is | |
| 3316 // zero, go directly to the header initialization. | |
| 3317 __ bind(initialize_object); | |
| 3318 __ decrementl(rdx, sizeof(oopDesc)); | |
| 3319 __ jcc(Assembler::zero, initialize_header); | |
| 3320 | |
| 3321 // Initialize object fields | |
| 3322 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
| 3323 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
| 3324 { | |
| 3325 Label loop; | |
| 3326 __ bind(loop); | |
| 3327 __ movq(Address(rax, rdx, Address::times_8, | |
| 3328 sizeof(oopDesc) - oopSize), | |
| 3329 rcx); | |
| 3330 __ decrementl(rdx); | |
| 3331 __ jcc(Assembler::notZero, loop); | |
| 3332 } | |
| 3333 | |
| 3334 // initialize object header only. | |
| 3335 __ bind(initialize_header); | |
| 3336 if (UseBiasedLocking) { | |
|
4762
069ab3f976d3
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|
3337 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
| 304 | 3338 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
| 0 | 3339 } else { |
| 3340 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
| 3341 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
| 3342 } | |
|
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3343 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
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3344 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
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3345 __ store_klass(rax, rsi); // store klass last |
|
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3346 |
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3347 { |
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3348 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
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3349 // Trigger dtrace event for fastpath |
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3350 __ push(atos); // save the return value |
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3351 __ call_VM_leaf( |
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3352 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
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3353 __ pop(atos); // restore the return value |
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3354 |
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|
3355 } |
| 0 | 3356 __ jmp(done); |
| 3357 } | |
| 3358 | |
| 3359 | |
| 3360 // slow case | |
| 3361 __ bind(slow_case); | |
| 3362 __ get_constant_pool(c_rarg1); | |
| 3363 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3364 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
| 3365 __ verify_oop(rax); | |
| 3366 | |
| 3367 // continue | |
| 3368 __ bind(done); | |
| 3369 } | |
| 3370 | |
| 3371 void TemplateTable::newarray() { | |
| 3372 transition(itos, atos); | |
| 3373 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
| 3374 __ movl(c_rarg2, rax); | |
| 3375 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
| 3376 c_rarg1, c_rarg2); | |
| 3377 } | |
| 3378 | |
| 3379 void TemplateTable::anewarray() { | |
| 3380 transition(itos, atos); | |
| 3381 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
| 3382 __ get_constant_pool(c_rarg1); | |
| 3383 __ movl(c_rarg3, rax); | |
| 3384 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
| 3385 c_rarg1, c_rarg2, c_rarg3); | |
| 3386 } | |
| 3387 | |
| 3388 void TemplateTable::arraylength() { | |
| 3389 transition(atos, itos); | |
| 3390 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
| 3391 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
| 3392 } | |
| 3393 | |
| 3394 void TemplateTable::checkcast() { | |
| 3395 transition(atos, atos); | |
| 3396 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3397 __ testptr(rax, rax); // object is in rax |
| 0 | 3398 __ jcc(Assembler::zero, is_null); |
| 3399 | |
| 3400 // Get cpool & tags index | |
| 3401 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3402 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3403 // See if bytecode has already been quicked | |
| 3404 __ cmpb(Address(rdx, rbx, | |
| 3405 Address::times_1, | |
|
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3406 Array<u1>::base_offset_in_bytes()), |
| 0 | 3407 JVM_CONSTANT_Class); |
| 3408 __ jcc(Assembler::equal, quicked); | |
|
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3409 __ push(atos); // save receiver for result, and for GC |
|
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3410 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3411 // vm_result_2 has metadata result |
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3412 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3413 __ pop_ptr(rdx); // restore receiver |
| 3414 __ jmpb(resolved); | |
| 3415 | |
| 3416 // Get superklass in rax and subklass in rbx | |
| 3417 __ bind(quicked); | |
| 304 | 3418 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
| 3419 __ movptr(rax, Address(rcx, rbx, | |
|
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3420 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3421 |
| 3422 __ bind(resolved); | |
|
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3423 __ load_klass(rbx, rdx); |
| 0 | 3424 |
| 3425 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
| 3426 // Superklass in rax. Subklass in rbx. | |
| 3427 __ gen_subtype_check(rbx, ok_is_subtype); | |
| 3428 | |
| 3429 // Come here on failure | |
| 3430 __ push_ptr(rdx); | |
| 3431 // object is at TOS | |
| 3432 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
| 3433 | |
| 3434 // Come here on success | |
| 3435 __ bind(ok_is_subtype); | |
| 304 | 3436 __ mov(rax, rdx); // Restore object in rdx |
| 0 | 3437 |
| 3438 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
| 3439 if (ProfileInterpreter) { | |
| 3440 __ jmp(done); | |
| 3441 __ bind(is_null); | |
| 3442 __ profile_null_seen(rcx); | |
| 3443 } else { | |
| 3444 __ bind(is_null); // same as 'done' | |
| 3445 } | |
| 3446 __ bind(done); | |
| 3447 } | |
| 3448 | |
| 3449 void TemplateTable::instanceof() { | |
| 3450 transition(atos, itos); | |
| 3451 Label done, is_null, ok_is_subtype, quicked, resolved; | |
| 304 | 3452 __ testptr(rax, rax); |
| 0 | 3453 __ jcc(Assembler::zero, is_null); |
| 3454 | |
| 3455 // Get cpool & tags index | |
| 3456 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
| 3457 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
| 3458 // See if bytecode has already been quicked | |
| 3459 __ cmpb(Address(rdx, rbx, | |
| 3460 Address::times_1, | |
|
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3461 Array<u1>::base_offset_in_bytes()), |
| 0 | 3462 JVM_CONSTANT_Class); |
| 3463 __ jcc(Assembler::equal, quicked); | |
| 3464 | |
|
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3465 __ push(atos); // save receiver for result, and for GC |
|
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3466 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3467 // vm_result_2 has metadata result |
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3468 __ get_vm_result_2(rax, r15_thread); |
| 0 | 3469 __ pop_ptr(rdx); // restore receiver |
|
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3470 __ verify_oop(rdx); |
|
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3471 __ load_klass(rdx, rdx); |
| 0 | 3472 __ jmpb(resolved); |
| 3473 | |
| 3474 // Get superklass in rax and subklass in rdx | |
| 3475 __ bind(quicked); | |
|
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3476 __ load_klass(rdx, rax); |
| 304 | 3477 __ movptr(rax, Address(rcx, rbx, |
|
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3478 Address::times_8, sizeof(ConstantPool))); |
| 0 | 3479 |
| 3480 __ bind(resolved); | |
| 3481 | |
| 3482 // Generate subtype check. Blows rcx, rdi | |
| 3483 // Superklass in rax. Subklass in rdx. | |
| 3484 __ gen_subtype_check(rdx, ok_is_subtype); | |
| 3485 | |
| 3486 // Come here on failure | |
| 3487 __ xorl(rax, rax); | |
| 3488 __ jmpb(done); | |
| 3489 // Come here on success | |
| 3490 __ bind(ok_is_subtype); | |
| 3491 __ movl(rax, 1); | |
| 3492 | |
| 3493 // Collect counts on whether this test sees NULLs a lot or not. | |
| 3494 if (ProfileInterpreter) { | |
| 3495 __ jmp(done); | |
| 3496 __ bind(is_null); | |
| 3497 __ profile_null_seen(rcx); | |
| 3498 } else { | |
| 3499 __ bind(is_null); // same as 'done' | |
| 3500 } | |
| 3501 __ bind(done); | |
| 3502 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
| 3503 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
| 3504 } | |
| 3505 | |
| 3506 //----------------------------------------------------------------------------- | |
| 3507 // Breakpoints | |
| 3508 void TemplateTable::_breakpoint() { | |
| 3509 // Note: We get here even if we are single stepping.. | |
| 3510 // jbug inists on setting breakpoints at every bytecode | |
| 3511 // even if we are in single step mode. | |
| 3512 | |
| 3513 transition(vtos, vtos); | |
| 3514 | |
| 3515 // get the unpatched byte code | |
| 3516 __ get_method(c_rarg1); | |
| 3517 __ call_VM(noreg, | |
| 3518 CAST_FROM_FN_PTR(address, | |
| 3519 InterpreterRuntime::get_original_bytecode_at), | |
| 3520 c_rarg1, r13); | |
| 304 | 3521 __ mov(rbx, rax); |
| 0 | 3522 |
| 3523 // post the breakpoint event | |
| 3524 __ get_method(c_rarg1); | |
| 3525 __ call_VM(noreg, | |
| 3526 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
| 3527 c_rarg1, r13); | |
| 3528 | |
| 3529 // complete the execution of original bytecode | |
| 3530 __ dispatch_only_normal(vtos); | |
| 3531 } | |
| 3532 | |
| 3533 //----------------------------------------------------------------------------- | |
| 3534 // Exceptions | |
| 3535 | |
| 3536 void TemplateTable::athrow() { | |
| 3537 transition(atos, vtos); | |
| 3538 __ null_check(rax); | |
| 3539 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
| 3540 } | |
| 3541 | |
| 3542 //----------------------------------------------------------------------------- | |
| 3543 // Synchronization | |
| 3544 // | |
| 3545 // Note: monitorenter & exit are symmetric routines; which is reflected | |
| 3546 // in the assembly code structure as well | |
| 3547 // | |
| 3548 // Stack layout: | |
| 3549 // | |
| 3550 // [expressions ] <--- rsp = expression stack top | |
| 3551 // .. | |
| 3552 // [expressions ] | |
| 3553 // [monitor entry] <--- monitor block top = expression stack bot | |
| 3554 // .. | |
| 3555 // [monitor entry] | |
| 3556 // [frame data ] <--- monitor block bot | |
| 3557 // ... | |
| 3558 // [saved rbp ] <--- rbp | |
| 3559 void TemplateTable::monitorenter() { | |
| 3560 transition(atos, vtos); | |
| 3561 | |
| 3562 // check for NULL object | |
| 3563 __ null_check(rax); | |
| 3564 | |
| 3565 const Address monitor_block_top( | |
| 3566 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3567 const Address monitor_block_bot( | |
| 3568 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3569 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3570 | |
| 3571 Label allocated; | |
| 3572 | |
| 3573 // initialize entry pointer | |
| 3574 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
| 3575 | |
| 3576 // find a free slot in the monitor block (result in c_rarg1) | |
| 3577 { | |
| 3578 Label entry, loop, exit; | |
| 304 | 3579 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
| 0 | 3580 // starting with top-most entry |
| 304 | 3581 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3582 // of monitor block |
| 3583 __ jmpb(entry); | |
| 3584 | |
| 3585 __ bind(loop); | |
| 3586 // check if current entry is used | |
| 304 | 3587 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
| 0 | 3588 // if not used then remember entry in c_rarg1 |
| 304 | 3589 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
| 0 | 3590 // check if current entry is for same object |
| 304 | 3591 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3592 // if same object then stop searching |
| 3593 __ jccb(Assembler::equal, exit); | |
| 3594 // otherwise advance to next entry | |
| 304 | 3595 __ addptr(c_rarg3, entry_size); |
| 0 | 3596 __ bind(entry); |
| 3597 // check if bottom reached | |
| 304 | 3598 __ cmpptr(c_rarg3, c_rarg2); |
| 0 | 3599 // if not at bottom then check this entry |
| 3600 __ jcc(Assembler::notEqual, loop); | |
| 3601 __ bind(exit); | |
| 3602 } | |
| 3603 | |
| 304 | 3604 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
| 0 | 3605 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
| 3606 | |
| 3607 // allocate one if there's no free slot | |
| 3608 { | |
| 3609 Label entry, loop; | |
| 304 | 3610 // 1. compute new pointers // rsp: old expression stack top |
| 3611 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
| 3612 __ subptr(rsp, entry_size); // move expression stack top | |
| 3613 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
| 3614 __ mov(c_rarg3, rsp); // set start value for copy loop | |
| 3615 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
| 0 | 3616 __ jmp(entry); |
| 3617 // 2. move expression stack contents | |
| 3618 __ bind(loop); | |
| 304 | 3619 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
| 3620 // word from old location | |
| 3621 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
| 3622 __ addptr(c_rarg3, wordSize); // advance to next word | |
| 0 | 3623 __ bind(entry); |
| 304 | 3624 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
| 0 | 3625 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
| 3626 // copy next word | |
| 3627 } | |
| 3628 | |
| 3629 // call run-time routine | |
| 3630 // c_rarg1: points to monitor entry | |
| 3631 __ bind(allocated); | |
| 3632 | |
| 3633 // Increment bcp to point to the next bytecode, so exception | |
| 3634 // handling for async. exceptions work correctly. | |
| 3635 // The object has already been poped from the stack, so the | |
| 3636 // expression stack looks correct. | |
| 304 | 3637 __ increment(r13); |
| 0 | 3638 |
| 3639 // store object | |
| 304 | 3640 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
| 0 | 3641 __ lock_object(c_rarg1); |
| 3642 | |
| 3643 // check to make sure this monitor doesn't cause stack overflow after locking | |
| 3644 __ save_bcp(); // in case of exception | |
| 3645 __ generate_stack_overflow_check(0); | |
| 3646 | |
| 3647 // The bcp has already been incremented. Just need to dispatch to | |
| 3648 // next instruction. | |
| 3649 __ dispatch_next(vtos); | |
| 3650 } | |
| 3651 | |
| 3652 | |
| 3653 void TemplateTable::monitorexit() { | |
| 3654 transition(atos, vtos); | |
| 3655 | |
| 3656 // check for NULL object | |
| 3657 __ null_check(rax); | |
| 3658 | |
| 3659 const Address monitor_block_top( | |
| 3660 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
| 3661 const Address monitor_block_bot( | |
| 3662 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
| 3663 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
| 3664 | |
| 3665 Label found; | |
| 3666 | |
| 3667 // find matching slot | |
| 3668 { | |
| 3669 Label entry, loop; | |
| 304 | 3670 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
| 0 | 3671 // starting with top-most entry |
| 304 | 3672 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
| 0 | 3673 // of monitor block |
| 3674 __ jmpb(entry); | |
| 3675 | |
| 3676 __ bind(loop); | |
| 3677 // check if current entry is for same object | |
| 304 | 3678 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
| 0 | 3679 // if same object then stop searching |
| 3680 __ jcc(Assembler::equal, found); | |
| 3681 // otherwise advance to next entry | |
| 304 | 3682 __ addptr(c_rarg1, entry_size); |
| 0 | 3683 __ bind(entry); |
| 3684 // check if bottom reached | |
| 304 | 3685 __ cmpptr(c_rarg1, c_rarg2); |
| 0 | 3686 // if not at bottom then check this entry |
| 3687 __ jcc(Assembler::notEqual, loop); | |
| 3688 } | |
| 3689 | |
| 3690 // error handling. Unlocking was not block-structured | |
| 3691 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 3692 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3693 __ should_not_reach_here(); | |
| 3694 | |
| 3695 // call run-time routine | |
| 3696 // rsi: points to monitor entry | |
| 3697 __ bind(found); | |
| 3698 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
| 3699 __ unlock_object(c_rarg1); | |
| 3700 __ pop_ptr(rax); // discard object | |
| 3701 } | |
| 3702 | |
| 3703 | |
| 3704 // Wide instructions | |
| 3705 void TemplateTable::wide() { | |
| 3706 transition(vtos, vtos); | |
| 3707 __ load_unsigned_byte(rbx, at_bcp(1)); | |
| 3708 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
| 3709 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
| 3710 // Note: the r13 increment step is part of the individual wide | |
| 3711 // bytecode implementations | |
| 3712 } | |
| 3713 | |
| 3714 | |
| 3715 // Multi arrays | |
| 3716 void TemplateTable::multianewarray() { | |
| 3717 transition(vtos, atos); | |
| 3718 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
| 3719 // last dim is on top of stack; we want address of first one: | |
| 3720 // first_addr = last_addr + (ndims - 1) * wordSize | |
| 304 | 3721 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
| 0 | 3722 call_VM(rax, |
| 3723 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
| 3724 c_rarg1); | |
| 3725 __ load_unsigned_byte(rbx, at_bcp(3)); | |
| 304 | 3726 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
| 0 | 3727 } |
| 304 | 3728 #endif // !CC_INTERP |