Mercurial > hg > truffle
annotate src/cpu/x86/vm/templateTable_x86_64.cpp @ 18211:16757e473b36
Truffle: fixed node visitor was traversing the full call tree.
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 28 Oct 2014 14:29:16 +0100 |
parents | 51c6ce89d4dd |
children | be896a1983c0 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
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26 #include "asm/macroAssembler.hpp" |
1972 | 27 #include "interpreter/interpreter.hpp" |
28 #include "interpreter/interpreterRuntime.hpp" | |
29 #include "interpreter/templateTable.hpp" | |
30 #include "memory/universe.inline.hpp" | |
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31 #include "oops/methodData.hpp" |
1972 | 32 #include "oops/objArrayKlass.hpp" |
33 #include "oops/oop.inline.hpp" | |
34 #include "prims/methodHandles.hpp" | |
35 #include "runtime/sharedRuntime.hpp" | |
36 #include "runtime/stubRoutines.hpp" | |
37 #include "runtime/synchronizer.hpp" | |
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38 #include "utilities/macros.hpp" |
0 | 39 |
304 | 40 #ifndef CC_INTERP |
41 | |
0 | 42 #define __ _masm-> |
43 | |
44 // Platform-dependent initialization | |
45 | |
46 void TemplateTable::pd_initialize() { | |
47 // No amd64 specific initialization | |
48 } | |
49 | |
50 // Address computation: local variables | |
51 | |
52 static inline Address iaddress(int n) { | |
53 return Address(r14, Interpreter::local_offset_in_bytes(n)); | |
54 } | |
55 | |
56 static inline Address laddress(int n) { | |
57 return iaddress(n + 1); | |
58 } | |
59 | |
60 static inline Address faddress(int n) { | |
61 return iaddress(n); | |
62 } | |
63 | |
64 static inline Address daddress(int n) { | |
65 return laddress(n); | |
66 } | |
67 | |
68 static inline Address aaddress(int n) { | |
69 return iaddress(n); | |
70 } | |
71 | |
72 static inline Address iaddress(Register r) { | |
1506 | 73 return Address(r14, r, Address::times_8); |
0 | 74 } |
75 | |
76 static inline Address laddress(Register r) { | |
77 return Address(r14, r, Address::times_8, Interpreter::local_offset_in_bytes(1)); | |
78 } | |
79 | |
80 static inline Address faddress(Register r) { | |
81 return iaddress(r); | |
82 } | |
83 | |
84 static inline Address daddress(Register r) { | |
85 return laddress(r); | |
86 } | |
87 | |
88 static inline Address aaddress(Register r) { | |
89 return iaddress(r); | |
90 } | |
91 | |
92 static inline Address at_rsp() { | |
93 return Address(rsp, 0); | |
94 } | |
95 | |
96 // At top of Java expression stack which may be different than esp(). It | |
97 // isn't for category 1 objects. | |
98 static inline Address at_tos () { | |
99 return Address(rsp, Interpreter::expr_offset_in_bytes(0)); | |
100 } | |
101 | |
102 static inline Address at_tos_p1() { | |
103 return Address(rsp, Interpreter::expr_offset_in_bytes(1)); | |
104 } | |
105 | |
106 static inline Address at_tos_p2() { | |
107 return Address(rsp, Interpreter::expr_offset_in_bytes(2)); | |
108 } | |
109 | |
110 // Condition conversion | |
111 static Assembler::Condition j_not(TemplateTable::Condition cc) { | |
112 switch (cc) { | |
113 case TemplateTable::equal : return Assembler::notEqual; | |
114 case TemplateTable::not_equal : return Assembler::equal; | |
115 case TemplateTable::less : return Assembler::greaterEqual; | |
116 case TemplateTable::less_equal : return Assembler::greater; | |
117 case TemplateTable::greater : return Assembler::lessEqual; | |
118 case TemplateTable::greater_equal: return Assembler::less; | |
119 } | |
120 ShouldNotReachHere(); | |
121 return Assembler::zero; | |
122 } | |
123 | |
124 | |
125 // Miscelaneous helper routines | |
342
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126 // Store an oop (or NULL) at the address described by obj. |
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127 // If val == noreg this means store a NULL |
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128 |
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129 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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130 Address obj, |
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131 Register val, |
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132 BarrierSet::Name barrier, |
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133 bool precise) { |
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134 assert(val == noreg || val == rax, "parameter is just for looks"); |
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135 switch (barrier) { |
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136 #if INCLUDE_ALL_GCS |
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137 case BarrierSet::G1SATBCT: |
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138 case BarrierSet::G1SATBCTLogging: |
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139 { |
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140 // flatten object address if needed |
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141 if (obj.index() == noreg && obj.disp() == 0) { |
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142 if (obj.base() != rdx) { |
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143 __ movq(rdx, obj.base()); |
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144 } |
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145 } else { |
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146 __ leaq(rdx, obj); |
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147 } |
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148 __ g1_write_barrier_pre(rdx /* obj */, |
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149 rbx /* pre_val */, |
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150 r15_thread /* thread */, |
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151 r8 /* tmp */, |
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152 val != noreg /* tosca_live */, |
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153 false /* expand_call */); |
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154 if (val == noreg) { |
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155 __ store_heap_oop_null(Address(rdx, 0)); |
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156 } else { |
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157 // G1 barrier needs uncompressed oop for region cross check. |
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158 Register new_val = val; |
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159 if (UseCompressedOops) { |
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160 new_val = rbx; |
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161 __ movptr(new_val, val); |
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162 } |
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163 __ store_heap_oop(Address(rdx, 0), val); |
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164 __ g1_write_barrier_post(rdx /* store_adr */, |
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165 new_val /* new_val */, |
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166 r15_thread /* thread */, |
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167 r8 /* tmp */, |
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168 rbx /* tmp2 */); |
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169 } |
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170 } |
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171 break; |
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172 #endif // INCLUDE_ALL_GCS |
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173 case BarrierSet::CardTableModRef: |
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174 case BarrierSet::CardTableExtension: |
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175 { |
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176 if (val == noreg) { |
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177 __ store_heap_oop_null(obj); |
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178 } else { |
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179 __ store_heap_oop(obj, val); |
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180 // flatten object address if needed |
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181 if (!precise || (obj.index() == noreg && obj.disp() == 0)) { |
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182 __ store_check(obj.base()); |
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183 } else { |
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184 __ leaq(rdx, obj); |
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185 __ store_check(rdx); |
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186 } |
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187 } |
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188 } |
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189 break; |
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190 case BarrierSet::ModRef: |
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191 case BarrierSet::Other: |
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192 if (val == noreg) { |
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193 __ store_heap_oop_null(obj); |
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194 } else { |
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195 __ store_heap_oop(obj, val); |
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196 } |
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197 break; |
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198 default : |
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199 ShouldNotReachHere(); |
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200 |
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201 } |
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202 } |
0 | 203 |
204 Address TemplateTable::at_bcp(int offset) { | |
205 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
206 return Address(r13, offset); | |
207 } | |
208 | |
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209 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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210 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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211 int byte_no) { |
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212 if (!RewriteBytecodes) return; |
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213 Label L_patch_done; |
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214 |
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215 switch (bc) { |
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216 case Bytecodes::_fast_aputfield: |
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217 case Bytecodes::_fast_bputfield: |
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218 case Bytecodes::_fast_cputfield: |
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219 case Bytecodes::_fast_dputfield: |
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220 case Bytecodes::_fast_fputfield: |
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221 case Bytecodes::_fast_iputfield: |
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222 case Bytecodes::_fast_lputfield: |
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223 case Bytecodes::_fast_sputfield: |
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224 { |
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225 // We skip bytecode quickening for putfield instructions when |
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226 // the put_code written to the constant pool cache is zero. |
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227 // This is required so that every execution of this instruction |
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228 // calls out to InterpreterRuntime::resolve_get_put to do |
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229 // additional, required work. |
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230 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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231 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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232 __ get_cache_and_index_and_bytecode_at_bcp(temp_reg, bc_reg, temp_reg, byte_no, 1); |
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233 __ movl(bc_reg, bc); |
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234 __ cmpl(temp_reg, (int) 0); |
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235 __ jcc(Assembler::zero, L_patch_done); // don't patch |
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236 } |
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237 break; |
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238 default: |
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239 assert(byte_no == -1, "sanity"); |
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240 // the pair bytecodes have already done the load. |
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241 if (load_bc_into_bc_reg) { |
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242 __ movl(bc_reg, bc); |
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243 } |
0 | 244 } |
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245 |
0 | 246 if (JvmtiExport::can_post_breakpoint()) { |
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247 Label L_fast_patch; |
0 | 248 // if a breakpoint is present we can't rewrite the stream directly |
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249 __ movzbl(temp_reg, at_bcp(0)); |
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250 __ cmpl(temp_reg, Bytecodes::_breakpoint); |
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251 __ jcc(Assembler::notEqual, L_fast_patch); |
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252 __ get_method(temp_reg); |
0 | 253 // Let breakpoint table handling rewrite to quicker bytecode |
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254 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), temp_reg, r13, bc_reg); |
0 | 255 #ifndef ASSERT |
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256 __ jmpb(L_patch_done); |
1108 | 257 #else |
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258 __ jmp(L_patch_done); |
1108 | 259 #endif |
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260 __ bind(L_fast_patch); |
0 | 261 } |
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262 |
1108 | 263 #ifdef ASSERT |
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264 Label L_okay; |
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265 __ load_unsigned_byte(temp_reg, at_bcp(0)); |
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266 __ cmpl(temp_reg, (int) Bytecodes::java_code(bc)); |
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267 __ jcc(Assembler::equal, L_okay); |
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268 __ cmpl(temp_reg, bc_reg); |
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269 __ jcc(Assembler::equal, L_okay); |
0 | 270 __ stop("patching the wrong bytecode"); |
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271 __ bind(L_okay); |
0 | 272 #endif |
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273 |
0 | 274 // patch bytecode |
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275 __ movb(at_bcp(0), bc_reg); |
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276 __ bind(L_patch_done); |
0 | 277 } |
278 | |
279 | |
280 // Individual instructions | |
281 | |
282 void TemplateTable::nop() { | |
283 transition(vtos, vtos); | |
284 // nothing to do | |
285 } | |
286 | |
287 void TemplateTable::shouldnotreachhere() { | |
288 transition(vtos, vtos); | |
289 __ stop("shouldnotreachhere bytecode"); | |
290 } | |
291 | |
292 void TemplateTable::aconst_null() { | |
293 transition(vtos, atos); | |
294 __ xorl(rax, rax); | |
295 } | |
296 | |
297 void TemplateTable::iconst(int value) { | |
298 transition(vtos, itos); | |
299 if (value == 0) { | |
300 __ xorl(rax, rax); | |
301 } else { | |
302 __ movl(rax, value); | |
303 } | |
304 } | |
305 | |
306 void TemplateTable::lconst(int value) { | |
307 transition(vtos, ltos); | |
308 if (value == 0) { | |
309 __ xorl(rax, rax); | |
310 } else { | |
311 __ movl(rax, value); | |
312 } | |
313 } | |
314 | |
315 void TemplateTable::fconst(int value) { | |
316 transition(vtos, ftos); | |
317 static float one = 1.0f, two = 2.0f; | |
318 switch (value) { | |
319 case 0: | |
320 __ xorps(xmm0, xmm0); | |
321 break; | |
322 case 1: | |
323 __ movflt(xmm0, ExternalAddress((address) &one)); | |
324 break; | |
325 case 2: | |
326 __ movflt(xmm0, ExternalAddress((address) &two)); | |
327 break; | |
328 default: | |
329 ShouldNotReachHere(); | |
330 break; | |
331 } | |
332 } | |
333 | |
334 void TemplateTable::dconst(int value) { | |
335 transition(vtos, dtos); | |
336 static double one = 1.0; | |
337 switch (value) { | |
338 case 0: | |
339 __ xorpd(xmm0, xmm0); | |
340 break; | |
341 case 1: | |
342 __ movdbl(xmm0, ExternalAddress((address) &one)); | |
343 break; | |
344 default: | |
345 ShouldNotReachHere(); | |
346 break; | |
347 } | |
348 } | |
349 | |
350 void TemplateTable::bipush() { | |
351 transition(vtos, itos); | |
352 __ load_signed_byte(rax, at_bcp(1)); | |
353 } | |
354 | |
355 void TemplateTable::sipush() { | |
356 transition(vtos, itos); | |
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357 __ load_unsigned_short(rax, at_bcp(1)); |
0 | 358 __ bswapl(rax); |
359 __ sarl(rax, 16); | |
360 } | |
361 | |
362 void TemplateTable::ldc(bool wide) { | |
363 transition(vtos, vtos); | |
364 Label call_ldc, notFloat, notClass, Done; | |
365 | |
366 if (wide) { | |
367 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
368 } else { | |
369 __ load_unsigned_byte(rbx, at_bcp(1)); | |
370 } | |
371 | |
372 __ get_cpool_and_tags(rcx, rax); | |
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373 const int base_offset = ConstantPool::header_size() * wordSize; |
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374 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 375 |
376 // get type | |
377 __ movzbl(rdx, Address(rax, rbx, Address::times_1, tags_offset)); | |
378 | |
379 // unresolved class - get the resolved class | |
380 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClass); | |
381 __ jccb(Assembler::equal, call_ldc); | |
382 | |
383 // unresolved class in error state - call into runtime to throw the error | |
384 // from the first resolution attempt | |
385 __ cmpl(rdx, JVM_CONSTANT_UnresolvedClassInError); | |
386 __ jccb(Assembler::equal, call_ldc); | |
387 | |
388 // resolved class - need to call vm to get java mirror of the class | |
389 __ cmpl(rdx, JVM_CONSTANT_Class); | |
390 __ jcc(Assembler::notEqual, notClass); | |
391 | |
392 __ bind(call_ldc); | |
393 __ movl(c_rarg1, wide); | |
394 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), c_rarg1); | |
395 __ push_ptr(rax); | |
396 __ verify_oop(rax); | |
397 __ jmp(Done); | |
398 | |
399 __ bind(notClass); | |
400 __ cmpl(rdx, JVM_CONSTANT_Float); | |
401 __ jccb(Assembler::notEqual, notFloat); | |
402 // ftos | |
403 __ movflt(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
404 __ push_f(); | |
405 __ jmp(Done); | |
406 | |
407 __ bind(notFloat); | |
408 #ifdef ASSERT | |
409 { | |
410 Label L; | |
411 __ cmpl(rdx, JVM_CONSTANT_Integer); | |
412 __ jcc(Assembler::equal, L); | |
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413 // String and Object are rewritten to fast_aldc |
0 | 414 __ stop("unexpected tag type in ldc"); |
415 __ bind(L); | |
416 } | |
417 #endif | |
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418 // itos JVM_CONSTANT_Integer only |
0 | 419 __ movl(rax, Address(rcx, rbx, Address::times_8, base_offset)); |
420 __ push_i(rax); | |
421 __ bind(Done); | |
422 } | |
423 | |
1602 | 424 // Fast path for caching oop constants. |
425 void TemplateTable::fast_aldc(bool wide) { | |
426 transition(vtos, atos); | |
427 | |
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428 Register result = rax; |
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429 Register tmp = rdx; |
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430 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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431 |
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432 Label resolved; |
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433 |
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434 // We are resolved if the resolved reference cache entry contains a |
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435 // non-null object (String, MethodType, etc.) |
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436 assert_different_registers(result, tmp); |
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437 __ get_cache_index_at_bcp(tmp, 1, index_size); |
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438 __ load_resolved_reference_at_index(result, tmp); |
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439 __ testl(result, result); |
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440 __ jcc(Assembler::notZero, resolved); |
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441 |
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442 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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443 |
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444 // first time invocation - must resolve first |
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445 __ movl(tmp, (int)bytecode()); |
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446 __ call_VM(result, entry, tmp); |
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447 |
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448 __ bind(resolved); |
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449 |
1602 | 450 if (VerifyOops) { |
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451 __ verify_oop(result); |
1602 | 452 } |
453 } | |
454 | |
0 | 455 void TemplateTable::ldc2_w() { |
456 transition(vtos, vtos); | |
457 Label Long, Done; | |
458 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); | |
459 | |
460 __ get_cpool_and_tags(rcx, rax); | |
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461 const int base_offset = ConstantPool::header_size() * wordSize; |
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462 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 463 |
464 // get type | |
465 __ cmpb(Address(rax, rbx, Address::times_1, tags_offset), | |
466 JVM_CONSTANT_Double); | |
467 __ jccb(Assembler::notEqual, Long); | |
468 // dtos | |
469 __ movdbl(xmm0, Address(rcx, rbx, Address::times_8, base_offset)); | |
470 __ push_d(); | |
471 __ jmpb(Done); | |
472 | |
473 __ bind(Long); | |
474 // ltos | |
475 __ movq(rax, Address(rcx, rbx, Address::times_8, base_offset)); | |
476 __ push_l(); | |
477 | |
478 __ bind(Done); | |
479 } | |
480 | |
481 void TemplateTable::locals_index(Register reg, int offset) { | |
482 __ load_unsigned_byte(reg, at_bcp(offset)); | |
304 | 483 __ negptr(reg); |
0 | 484 } |
485 | |
486 void TemplateTable::iload() { | |
487 transition(vtos, itos); | |
488 if (RewriteFrequentPairs) { | |
489 Label rewrite, done; | |
490 const Register bc = c_rarg3; | |
491 assert(rbx != bc, "register damaged"); | |
492 | |
493 // get next byte | |
494 __ load_unsigned_byte(rbx, | |
495 at_bcp(Bytecodes::length_for(Bytecodes::_iload))); | |
496 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
497 // last two iloads in a pair. Comparing against fast_iload means that | |
498 // the next bytecode is neither an iload or a caload, and therefore | |
499 // an iload pair. | |
500 __ cmpl(rbx, Bytecodes::_iload); | |
501 __ jcc(Assembler::equal, done); | |
502 | |
503 __ cmpl(rbx, Bytecodes::_fast_iload); | |
504 __ movl(bc, Bytecodes::_fast_iload2); | |
505 __ jccb(Assembler::equal, rewrite); | |
506 | |
507 // if _caload, rewrite to fast_icaload | |
508 __ cmpl(rbx, Bytecodes::_caload); | |
509 __ movl(bc, Bytecodes::_fast_icaload); | |
510 __ jccb(Assembler::equal, rewrite); | |
511 | |
512 // rewrite so iload doesn't check again. | |
513 __ movl(bc, Bytecodes::_fast_iload); | |
514 | |
515 // rewrite | |
516 // bc: fast bytecode | |
517 __ bind(rewrite); | |
518 patch_bytecode(Bytecodes::_iload, bc, rbx, false); | |
519 __ bind(done); | |
520 } | |
521 | |
522 // Get the local value into tos | |
523 locals_index(rbx); | |
524 __ movl(rax, iaddress(rbx)); | |
525 } | |
526 | |
527 void TemplateTable::fast_iload2() { | |
528 transition(vtos, itos); | |
529 locals_index(rbx); | |
530 __ movl(rax, iaddress(rbx)); | |
531 __ push(itos); | |
532 locals_index(rbx, 3); | |
533 __ movl(rax, iaddress(rbx)); | |
534 } | |
535 | |
536 void TemplateTable::fast_iload() { | |
537 transition(vtos, itos); | |
538 locals_index(rbx); | |
539 __ movl(rax, iaddress(rbx)); | |
540 } | |
541 | |
542 void TemplateTable::lload() { | |
543 transition(vtos, ltos); | |
544 locals_index(rbx); | |
545 __ movq(rax, laddress(rbx)); | |
546 } | |
547 | |
548 void TemplateTable::fload() { | |
549 transition(vtos, ftos); | |
550 locals_index(rbx); | |
551 __ movflt(xmm0, faddress(rbx)); | |
552 } | |
553 | |
554 void TemplateTable::dload() { | |
555 transition(vtos, dtos); | |
556 locals_index(rbx); | |
557 __ movdbl(xmm0, daddress(rbx)); | |
558 } | |
559 | |
560 void TemplateTable::aload() { | |
561 transition(vtos, atos); | |
562 locals_index(rbx); | |
304 | 563 __ movptr(rax, aaddress(rbx)); |
0 | 564 } |
565 | |
566 void TemplateTable::locals_index_wide(Register reg) { | |
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567 __ load_unsigned_short(reg, at_bcp(2)); |
0 | 568 __ bswapl(reg); |
569 __ shrl(reg, 16); | |
304 | 570 __ negptr(reg); |
0 | 571 } |
572 | |
573 void TemplateTable::wide_iload() { | |
574 transition(vtos, itos); | |
575 locals_index_wide(rbx); | |
576 __ movl(rax, iaddress(rbx)); | |
577 } | |
578 | |
579 void TemplateTable::wide_lload() { | |
580 transition(vtos, ltos); | |
581 locals_index_wide(rbx); | |
582 __ movq(rax, laddress(rbx)); | |
583 } | |
584 | |
585 void TemplateTable::wide_fload() { | |
586 transition(vtos, ftos); | |
587 locals_index_wide(rbx); | |
588 __ movflt(xmm0, faddress(rbx)); | |
589 } | |
590 | |
591 void TemplateTable::wide_dload() { | |
592 transition(vtos, dtos); | |
593 locals_index_wide(rbx); | |
594 __ movdbl(xmm0, daddress(rbx)); | |
595 } | |
596 | |
597 void TemplateTable::wide_aload() { | |
598 transition(vtos, atos); | |
599 locals_index_wide(rbx); | |
304 | 600 __ movptr(rax, aaddress(rbx)); |
0 | 601 } |
602 | |
603 void TemplateTable::index_check(Register array, Register index) { | |
604 // destroys rbx | |
605 // check array | |
606 __ null_check(array, arrayOopDesc::length_offset_in_bytes()); | |
607 // sign extend index for use by indexed load | |
304 | 608 __ movl2ptr(index, index); |
0 | 609 // check index |
610 __ cmpl(index, Address(array, arrayOopDesc::length_offset_in_bytes())); | |
611 if (index != rbx) { | |
612 // ??? convention: move aberrant index into ebx for exception message | |
613 assert(rbx != array, "different registers"); | |
614 __ movl(rbx, index); | |
615 } | |
616 __ jump_cc(Assembler::aboveEqual, | |
617 ExternalAddress(Interpreter::_throw_ArrayIndexOutOfBoundsException_entry)); | |
618 } | |
619 | |
620 void TemplateTable::iaload() { | |
621 transition(itos, itos); | |
622 __ pop_ptr(rdx); | |
623 // eax: index | |
624 // rdx: array | |
625 index_check(rdx, rax); // kills rbx | |
626 __ movl(rax, Address(rdx, rax, | |
627 Address::times_4, | |
628 arrayOopDesc::base_offset_in_bytes(T_INT))); | |
629 } | |
630 | |
631 void TemplateTable::laload() { | |
632 transition(itos, ltos); | |
633 __ pop_ptr(rdx); | |
634 // eax: index | |
635 // rdx: array | |
636 index_check(rdx, rax); // kills rbx | |
637 __ movq(rax, Address(rdx, rbx, | |
638 Address::times_8, | |
639 arrayOopDesc::base_offset_in_bytes(T_LONG))); | |
640 } | |
641 | |
642 void TemplateTable::faload() { | |
643 transition(itos, ftos); | |
644 __ pop_ptr(rdx); | |
645 // eax: index | |
646 // rdx: array | |
647 index_check(rdx, rax); // kills rbx | |
648 __ movflt(xmm0, Address(rdx, rax, | |
649 Address::times_4, | |
650 arrayOopDesc::base_offset_in_bytes(T_FLOAT))); | |
651 } | |
652 | |
653 void TemplateTable::daload() { | |
654 transition(itos, dtos); | |
655 __ pop_ptr(rdx); | |
656 // eax: index | |
657 // rdx: array | |
658 index_check(rdx, rax); // kills rbx | |
659 __ movdbl(xmm0, Address(rdx, rax, | |
660 Address::times_8, | |
661 arrayOopDesc::base_offset_in_bytes(T_DOUBLE))); | |
662 } | |
663 | |
664 void TemplateTable::aaload() { | |
665 transition(itos, atos); | |
666 __ pop_ptr(rdx); | |
667 // eax: index | |
668 // rdx: array | |
669 index_check(rdx, rax); // kills rbx | |
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670 __ load_heap_oop(rax, Address(rdx, rax, |
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671 UseCompressedOops ? Address::times_4 : Address::times_8, |
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672 arrayOopDesc::base_offset_in_bytes(T_OBJECT))); |
0 | 673 } |
674 | |
675 void TemplateTable::baload() { | |
676 transition(itos, itos); | |
677 __ pop_ptr(rdx); | |
678 // eax: index | |
679 // rdx: array | |
680 index_check(rdx, rax); // kills rbx | |
681 __ load_signed_byte(rax, | |
682 Address(rdx, rax, | |
683 Address::times_1, | |
684 arrayOopDesc::base_offset_in_bytes(T_BYTE))); | |
685 } | |
686 | |
687 void TemplateTable::caload() { | |
688 transition(itos, itos); | |
689 __ pop_ptr(rdx); | |
690 // eax: index | |
691 // rdx: array | |
692 index_check(rdx, rax); // kills rbx | |
622
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693 __ load_unsigned_short(rax, |
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694 Address(rdx, rax, |
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695 Address::times_2, |
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696 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 697 } |
698 | |
699 // iload followed by caload frequent pair | |
700 void TemplateTable::fast_icaload() { | |
701 transition(vtos, itos); | |
702 // load index out of locals | |
703 locals_index(rbx); | |
704 __ movl(rax, iaddress(rbx)); | |
705 | |
706 // eax: index | |
707 // rdx: array | |
708 __ pop_ptr(rdx); | |
709 index_check(rdx, rax); // kills rbx | |
622
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710 __ load_unsigned_short(rax, |
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711 Address(rdx, rax, |
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712 Address::times_2, |
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713 arrayOopDesc::base_offset_in_bytes(T_CHAR))); |
0 | 714 } |
715 | |
716 void TemplateTable::saload() { | |
717 transition(itos, itos); | |
718 __ pop_ptr(rdx); | |
719 // eax: index | |
720 // rdx: array | |
721 index_check(rdx, rax); // kills rbx | |
622
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722 __ load_signed_short(rax, |
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723 Address(rdx, rax, |
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724 Address::times_2, |
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725 arrayOopDesc::base_offset_in_bytes(T_SHORT))); |
0 | 726 } |
727 | |
728 void TemplateTable::iload(int n) { | |
729 transition(vtos, itos); | |
730 __ movl(rax, iaddress(n)); | |
731 } | |
732 | |
733 void TemplateTable::lload(int n) { | |
734 transition(vtos, ltos); | |
735 __ movq(rax, laddress(n)); | |
736 } | |
737 | |
738 void TemplateTable::fload(int n) { | |
739 transition(vtos, ftos); | |
740 __ movflt(xmm0, faddress(n)); | |
741 } | |
742 | |
743 void TemplateTable::dload(int n) { | |
744 transition(vtos, dtos); | |
745 __ movdbl(xmm0, daddress(n)); | |
746 } | |
747 | |
748 void TemplateTable::aload(int n) { | |
749 transition(vtos, atos); | |
304 | 750 __ movptr(rax, aaddress(n)); |
0 | 751 } |
752 | |
753 void TemplateTable::aload_0() { | |
754 transition(vtos, atos); | |
755 // According to bytecode histograms, the pairs: | |
756 // | |
757 // _aload_0, _fast_igetfield | |
758 // _aload_0, _fast_agetfield | |
759 // _aload_0, _fast_fgetfield | |
760 // | |
761 // occur frequently. If RewriteFrequentPairs is set, the (slow) | |
762 // _aload_0 bytecode checks if the next bytecode is either | |
763 // _fast_igetfield, _fast_agetfield or _fast_fgetfield and then | |
764 // rewrites the current bytecode into a pair bytecode; otherwise it | |
765 // rewrites the current bytecode into _fast_aload_0 that doesn't do | |
766 // the pair check anymore. | |
767 // | |
768 // Note: If the next bytecode is _getfield, the rewrite must be | |
769 // delayed, otherwise we may miss an opportunity for a pair. | |
770 // | |
771 // Also rewrite frequent pairs | |
772 // aload_0, aload_1 | |
773 // aload_0, iload_1 | |
774 // These bytecodes with a small amount of code are most profitable | |
775 // to rewrite | |
776 if (RewriteFrequentPairs) { | |
777 Label rewrite, done; | |
778 const Register bc = c_rarg3; | |
779 assert(rbx != bc, "register damaged"); | |
780 // get next byte | |
781 __ load_unsigned_byte(rbx, | |
782 at_bcp(Bytecodes::length_for(Bytecodes::_aload_0))); | |
783 | |
784 // do actual aload_0 | |
785 aload(0); | |
786 | |
787 // if _getfield then wait with rewrite | |
788 __ cmpl(rbx, Bytecodes::_getfield); | |
789 __ jcc(Assembler::equal, done); | |
790 | |
791 // if _igetfield then reqrite to _fast_iaccess_0 | |
792 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == | |
793 Bytecodes::_aload_0, | |
794 "fix bytecode definition"); | |
795 __ cmpl(rbx, Bytecodes::_fast_igetfield); | |
796 __ movl(bc, Bytecodes::_fast_iaccess_0); | |
797 __ jccb(Assembler::equal, rewrite); | |
798 | |
799 // if _agetfield then reqrite to _fast_aaccess_0 | |
800 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == | |
801 Bytecodes::_aload_0, | |
802 "fix bytecode definition"); | |
803 __ cmpl(rbx, Bytecodes::_fast_agetfield); | |
804 __ movl(bc, Bytecodes::_fast_aaccess_0); | |
805 __ jccb(Assembler::equal, rewrite); | |
806 | |
807 // if _fgetfield then reqrite to _fast_faccess_0 | |
808 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == | |
809 Bytecodes::_aload_0, | |
810 "fix bytecode definition"); | |
811 __ cmpl(rbx, Bytecodes::_fast_fgetfield); | |
812 __ movl(bc, Bytecodes::_fast_faccess_0); | |
813 __ jccb(Assembler::equal, rewrite); | |
814 | |
815 // else rewrite to _fast_aload0 | |
816 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == | |
817 Bytecodes::_aload_0, | |
818 "fix bytecode definition"); | |
819 __ movl(bc, Bytecodes::_fast_aload_0); | |
820 | |
821 // rewrite | |
822 // bc: fast bytecode | |
823 __ bind(rewrite); | |
824 patch_bytecode(Bytecodes::_aload_0, bc, rbx, false); | |
825 | |
826 __ bind(done); | |
827 } else { | |
828 aload(0); | |
829 } | |
830 } | |
831 | |
832 void TemplateTable::istore() { | |
833 transition(itos, vtos); | |
834 locals_index(rbx); | |
835 __ movl(iaddress(rbx), rax); | |
836 } | |
837 | |
838 void TemplateTable::lstore() { | |
839 transition(ltos, vtos); | |
840 locals_index(rbx); | |
841 __ movq(laddress(rbx), rax); | |
842 } | |
843 | |
844 void TemplateTable::fstore() { | |
845 transition(ftos, vtos); | |
846 locals_index(rbx); | |
847 __ movflt(faddress(rbx), xmm0); | |
848 } | |
849 | |
850 void TemplateTable::dstore() { | |
851 transition(dtos, vtos); | |
852 locals_index(rbx); | |
853 __ movdbl(daddress(rbx), xmm0); | |
854 } | |
855 | |
856 void TemplateTable::astore() { | |
857 transition(vtos, vtos); | |
1506 | 858 __ pop_ptr(rax); |
0 | 859 locals_index(rbx); |
304 | 860 __ movptr(aaddress(rbx), rax); |
0 | 861 } |
862 | |
863 void TemplateTable::wide_istore() { | |
864 transition(vtos, vtos); | |
865 __ pop_i(); | |
866 locals_index_wide(rbx); | |
867 __ movl(iaddress(rbx), rax); | |
868 } | |
869 | |
870 void TemplateTable::wide_lstore() { | |
871 transition(vtos, vtos); | |
872 __ pop_l(); | |
873 locals_index_wide(rbx); | |
874 __ movq(laddress(rbx), rax); | |
875 } | |
876 | |
877 void TemplateTable::wide_fstore() { | |
878 transition(vtos, vtos); | |
879 __ pop_f(); | |
880 locals_index_wide(rbx); | |
881 __ movflt(faddress(rbx), xmm0); | |
882 } | |
883 | |
884 void TemplateTable::wide_dstore() { | |
885 transition(vtos, vtos); | |
886 __ pop_d(); | |
887 locals_index_wide(rbx); | |
888 __ movdbl(daddress(rbx), xmm0); | |
889 } | |
890 | |
891 void TemplateTable::wide_astore() { | |
892 transition(vtos, vtos); | |
1506 | 893 __ pop_ptr(rax); |
0 | 894 locals_index_wide(rbx); |
304 | 895 __ movptr(aaddress(rbx), rax); |
0 | 896 } |
897 | |
898 void TemplateTable::iastore() { | |
899 transition(itos, vtos); | |
900 __ pop_i(rbx); | |
901 __ pop_ptr(rdx); | |
902 // eax: value | |
903 // ebx: index | |
904 // rdx: array | |
905 index_check(rdx, rbx); // prefer index in ebx | |
906 __ movl(Address(rdx, rbx, | |
907 Address::times_4, | |
908 arrayOopDesc::base_offset_in_bytes(T_INT)), | |
909 rax); | |
910 } | |
911 | |
912 void TemplateTable::lastore() { | |
913 transition(ltos, vtos); | |
914 __ pop_i(rbx); | |
915 __ pop_ptr(rdx); | |
916 // rax: value | |
917 // ebx: index | |
918 // rdx: array | |
919 index_check(rdx, rbx); // prefer index in ebx | |
920 __ movq(Address(rdx, rbx, | |
921 Address::times_8, | |
922 arrayOopDesc::base_offset_in_bytes(T_LONG)), | |
923 rax); | |
924 } | |
925 | |
926 void TemplateTable::fastore() { | |
927 transition(ftos, vtos); | |
928 __ pop_i(rbx); | |
929 __ pop_ptr(rdx); | |
930 // xmm0: value | |
931 // ebx: index | |
932 // rdx: array | |
933 index_check(rdx, rbx); // prefer index in ebx | |
934 __ movflt(Address(rdx, rbx, | |
935 Address::times_4, | |
936 arrayOopDesc::base_offset_in_bytes(T_FLOAT)), | |
937 xmm0); | |
938 } | |
939 | |
940 void TemplateTable::dastore() { | |
941 transition(dtos, vtos); | |
942 __ pop_i(rbx); | |
943 __ pop_ptr(rdx); | |
944 // xmm0: value | |
945 // ebx: index | |
946 // rdx: array | |
947 index_check(rdx, rbx); // prefer index in ebx | |
948 __ movdbl(Address(rdx, rbx, | |
949 Address::times_8, | |
950 arrayOopDesc::base_offset_in_bytes(T_DOUBLE)), | |
951 xmm0); | |
952 } | |
953 | |
954 void TemplateTable::aastore() { | |
955 Label is_null, ok_is_subtype, done; | |
956 transition(vtos, vtos); | |
957 // stack: ..., array, index, value | |
304 | 958 __ movptr(rax, at_tos()); // value |
0 | 959 __ movl(rcx, at_tos_p1()); // index |
304 | 960 __ movptr(rdx, at_tos_p2()); // array |
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961 |
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962 Address element_address(rdx, rcx, |
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963 UseCompressedOops? Address::times_4 : Address::times_8, |
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964 arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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965 |
0 | 966 index_check(rdx, rcx); // kills rbx |
967 // do array store check - check for NULL value first | |
304 | 968 __ testptr(rax, rax); |
0 | 969 __ jcc(Assembler::zero, is_null); |
970 | |
971 // Move subklass into rbx | |
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972 __ load_klass(rbx, rax); |
0 | 973 // Move superklass into rax |
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974 __ load_klass(rax, rdx); |
304 | 975 __ movptr(rax, Address(rax, |
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976 ObjArrayKlass::element_klass_offset())); |
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977 // Compress array + index*oopSize + 12 into a single register. Frees rcx. |
362 | 978 __ lea(rdx, element_address); |
0 | 979 |
980 // Generate subtype check. Blows rcx, rdi | |
981 // Superklass in rax. Subklass in rbx. | |
982 __ gen_subtype_check(rbx, ok_is_subtype); | |
983 | |
984 // Come here on failure | |
985 // object is at TOS | |
986 __ jump(ExternalAddress(Interpreter::_throw_ArrayStoreException_entry)); | |
987 | |
988 // Come here on success | |
989 __ bind(ok_is_subtype); | |
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990 |
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991 // Get the value we will store |
362 | 992 __ movptr(rax, at_tos()); |
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993 // Now store using the appropriate barrier |
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994 do_oop_store(_masm, Address(rdx, 0), rax, _bs->kind(), true); |
0 | 995 __ jmp(done); |
996 | |
997 // Have a NULL in rax, rdx=array, ecx=index. Store NULL at ary[idx] | |
998 __ bind(is_null); | |
999 __ profile_null_seen(rbx); | |
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1000 |
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1001 // Store a NULL |
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1002 do_oop_store(_masm, element_address, noreg, _bs->kind(), true); |
0 | 1003 |
1004 // Pop stack arguments | |
1005 __ bind(done); | |
1506 | 1006 __ addptr(rsp, 3 * Interpreter::stackElementSize); |
0 | 1007 } |
1008 | |
1009 void TemplateTable::bastore() { | |
1010 transition(itos, vtos); | |
1011 __ pop_i(rbx); | |
1012 __ pop_ptr(rdx); | |
1013 // eax: value | |
1014 // ebx: index | |
1015 // rdx: array | |
1016 index_check(rdx, rbx); // prefer index in ebx | |
1017 __ movb(Address(rdx, rbx, | |
1018 Address::times_1, | |
1019 arrayOopDesc::base_offset_in_bytes(T_BYTE)), | |
1020 rax); | |
1021 } | |
1022 | |
1023 void TemplateTable::castore() { | |
1024 transition(itos, vtos); | |
1025 __ pop_i(rbx); | |
1026 __ pop_ptr(rdx); | |
1027 // eax: value | |
1028 // ebx: index | |
1029 // rdx: array | |
1030 index_check(rdx, rbx); // prefer index in ebx | |
1031 __ movw(Address(rdx, rbx, | |
1032 Address::times_2, | |
1033 arrayOopDesc::base_offset_in_bytes(T_CHAR)), | |
1034 rax); | |
1035 } | |
1036 | |
1037 void TemplateTable::sastore() { | |
1038 castore(); | |
1039 } | |
1040 | |
1041 void TemplateTable::istore(int n) { | |
1042 transition(itos, vtos); | |
1043 __ movl(iaddress(n), rax); | |
1044 } | |
1045 | |
1046 void TemplateTable::lstore(int n) { | |
1047 transition(ltos, vtos); | |
1048 __ movq(laddress(n), rax); | |
1049 } | |
1050 | |
1051 void TemplateTable::fstore(int n) { | |
1052 transition(ftos, vtos); | |
1053 __ movflt(faddress(n), xmm0); | |
1054 } | |
1055 | |
1056 void TemplateTable::dstore(int n) { | |
1057 transition(dtos, vtos); | |
1058 __ movdbl(daddress(n), xmm0); | |
1059 } | |
1060 | |
1061 void TemplateTable::astore(int n) { | |
1062 transition(vtos, vtos); | |
1506 | 1063 __ pop_ptr(rax); |
304 | 1064 __ movptr(aaddress(n), rax); |
0 | 1065 } |
1066 | |
1067 void TemplateTable::pop() { | |
1068 transition(vtos, vtos); | |
1506 | 1069 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1070 } |
1071 | |
1072 void TemplateTable::pop2() { | |
1073 transition(vtos, vtos); | |
1506 | 1074 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1075 } |
1076 | |
1077 void TemplateTable::dup() { | |
1078 transition(vtos, vtos); | |
1506 | 1079 __ load_ptr(0, rax); |
1080 __ push_ptr(rax); | |
0 | 1081 // stack: ..., a, a |
1082 } | |
1083 | |
1084 void TemplateTable::dup_x1() { | |
1085 transition(vtos, vtos); | |
1086 // stack: ..., a, b | |
1506 | 1087 __ load_ptr( 0, rax); // load b |
1088 __ load_ptr( 1, rcx); // load a | |
1089 __ store_ptr(1, rax); // store b | |
1090 __ store_ptr(0, rcx); // store a | |
1091 __ push_ptr(rax); // push b | |
0 | 1092 // stack: ..., b, a, b |
1093 } | |
1094 | |
1095 void TemplateTable::dup_x2() { | |
1096 transition(vtos, vtos); | |
1097 // stack: ..., a, b, c | |
1506 | 1098 __ load_ptr( 0, rax); // load c |
1099 __ load_ptr( 2, rcx); // load a | |
1100 __ store_ptr(2, rax); // store c in a | |
1101 __ push_ptr(rax); // push c | |
0 | 1102 // stack: ..., c, b, c, c |
1506 | 1103 __ load_ptr( 2, rax); // load b |
1104 __ store_ptr(2, rcx); // store a in b | |
0 | 1105 // stack: ..., c, a, c, c |
1506 | 1106 __ store_ptr(1, rax); // store b in c |
0 | 1107 // stack: ..., c, a, b, c |
1108 } | |
1109 | |
1110 void TemplateTable::dup2() { | |
1111 transition(vtos, vtos); | |
1112 // stack: ..., a, b | |
1506 | 1113 __ load_ptr(1, rax); // load a |
1114 __ push_ptr(rax); // push a | |
1115 __ load_ptr(1, rax); // load b | |
1116 __ push_ptr(rax); // push b | |
0 | 1117 // stack: ..., a, b, a, b |
1118 } | |
1119 | |
1120 void TemplateTable::dup2_x1() { | |
1121 transition(vtos, vtos); | |
1122 // stack: ..., a, b, c | |
1506 | 1123 __ load_ptr( 0, rcx); // load c |
1124 __ load_ptr( 1, rax); // load b | |
1125 __ push_ptr(rax); // push b | |
1126 __ push_ptr(rcx); // push c | |
0 | 1127 // stack: ..., a, b, c, b, c |
1506 | 1128 __ store_ptr(3, rcx); // store c in b |
0 | 1129 // stack: ..., a, c, c, b, c |
1506 | 1130 __ load_ptr( 4, rcx); // load a |
1131 __ store_ptr(2, rcx); // store a in 2nd c | |
0 | 1132 // stack: ..., a, c, a, b, c |
1506 | 1133 __ store_ptr(4, rax); // store b in a |
0 | 1134 // stack: ..., b, c, a, b, c |
1135 } | |
1136 | |
1137 void TemplateTable::dup2_x2() { | |
1138 transition(vtos, vtos); | |
1139 // stack: ..., a, b, c, d | |
1506 | 1140 __ load_ptr( 0, rcx); // load d |
1141 __ load_ptr( 1, rax); // load c | |
1142 __ push_ptr(rax); // push c | |
1143 __ push_ptr(rcx); // push d | |
0 | 1144 // stack: ..., a, b, c, d, c, d |
1506 | 1145 __ load_ptr( 4, rax); // load b |
1146 __ store_ptr(2, rax); // store b in d | |
1147 __ store_ptr(4, rcx); // store d in b | |
0 | 1148 // stack: ..., a, d, c, b, c, d |
1506 | 1149 __ load_ptr( 5, rcx); // load a |
1150 __ load_ptr( 3, rax); // load c | |
1151 __ store_ptr(3, rcx); // store a in c | |
1152 __ store_ptr(5, rax); // store c in a | |
0 | 1153 // stack: ..., c, d, a, b, c, d |
1154 } | |
1155 | |
1156 void TemplateTable::swap() { | |
1157 transition(vtos, vtos); | |
1158 // stack: ..., a, b | |
1506 | 1159 __ load_ptr( 1, rcx); // load a |
1160 __ load_ptr( 0, rax); // load b | |
1161 __ store_ptr(0, rcx); // store a in b | |
1162 __ store_ptr(1, rax); // store b in a | |
0 | 1163 // stack: ..., b, a |
1164 } | |
1165 | |
1166 void TemplateTable::iop2(Operation op) { | |
1167 transition(itos, itos); | |
1168 switch (op) { | |
1169 case add : __ pop_i(rdx); __ addl (rax, rdx); break; | |
1170 case sub : __ movl(rdx, rax); __ pop_i(rax); __ subl (rax, rdx); break; | |
1171 case mul : __ pop_i(rdx); __ imull(rax, rdx); break; | |
1172 case _and : __ pop_i(rdx); __ andl (rax, rdx); break; | |
1173 case _or : __ pop_i(rdx); __ orl (rax, rdx); break; | |
1174 case _xor : __ pop_i(rdx); __ xorl (rax, rdx); break; | |
1175 case shl : __ movl(rcx, rax); __ pop_i(rax); __ shll (rax); break; | |
1176 case shr : __ movl(rcx, rax); __ pop_i(rax); __ sarl (rax); break; | |
1177 case ushr : __ movl(rcx, rax); __ pop_i(rax); __ shrl (rax); break; | |
1178 default : ShouldNotReachHere(); | |
1179 } | |
1180 } | |
1181 | |
1182 void TemplateTable::lop2(Operation op) { | |
1183 transition(ltos, ltos); | |
1184 switch (op) { | |
1506 | 1185 case add : __ pop_l(rdx); __ addptr(rax, rdx); break; |
1186 case sub : __ mov(rdx, rax); __ pop_l(rax); __ subptr(rax, rdx); break; | |
1187 case _and : __ pop_l(rdx); __ andptr(rax, rdx); break; | |
1188 case _or : __ pop_l(rdx); __ orptr (rax, rdx); break; | |
1189 case _xor : __ pop_l(rdx); __ xorptr(rax, rdx); break; | |
1190 default : ShouldNotReachHere(); | |
0 | 1191 } |
1192 } | |
1193 | |
1194 void TemplateTable::idiv() { | |
1195 transition(itos, itos); | |
1196 __ movl(rcx, rax); | |
1197 __ pop_i(rax); | |
1198 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1199 // they are not equal, one could do a normal division (no correction | |
1200 // needed), which may speed up this implementation for the common case. | |
1201 // (see also JVM spec., p.243 & p.271) | |
1202 __ corrected_idivl(rcx); | |
1203 } | |
1204 | |
1205 void TemplateTable::irem() { | |
1206 transition(itos, itos); | |
1207 __ movl(rcx, rax); | |
1208 __ pop_i(rax); | |
1209 // Note: could xor eax and ecx and compare with (-1 ^ min_int). If | |
1210 // they are not equal, one could do a normal division (no correction | |
1211 // needed), which may speed up this implementation for the common case. | |
1212 // (see also JVM spec., p.243 & p.271) | |
1213 __ corrected_idivl(rcx); | |
1214 __ movl(rax, rdx); | |
1215 } | |
1216 | |
1217 void TemplateTable::lmul() { | |
1218 transition(ltos, ltos); | |
1219 __ pop_l(rdx); | |
1220 __ imulq(rax, rdx); | |
1221 } | |
1222 | |
1223 void TemplateTable::ldiv() { | |
1224 transition(ltos, ltos); | |
304 | 1225 __ mov(rcx, rax); |
0 | 1226 __ pop_l(rax); |
1227 // generate explicit div0 check | |
1228 __ testq(rcx, rcx); | |
1229 __ jump_cc(Assembler::zero, | |
1230 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1231 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1232 // they are not equal, one could do a normal division (no correction | |
1233 // needed), which may speed up this implementation for the common case. | |
1234 // (see also JVM spec., p.243 & p.271) | |
1235 __ corrected_idivq(rcx); // kills rbx | |
1236 } | |
1237 | |
1238 void TemplateTable::lrem() { | |
1239 transition(ltos, ltos); | |
304 | 1240 __ mov(rcx, rax); |
0 | 1241 __ pop_l(rax); |
1242 __ testq(rcx, rcx); | |
1243 __ jump_cc(Assembler::zero, | |
1244 ExternalAddress(Interpreter::_throw_ArithmeticException_entry)); | |
1245 // Note: could xor rax and rcx and compare with (-1 ^ min_int). If | |
1246 // they are not equal, one could do a normal division (no correction | |
1247 // needed), which may speed up this implementation for the common case. | |
1248 // (see also JVM spec., p.243 & p.271) | |
1249 __ corrected_idivq(rcx); // kills rbx | |
304 | 1250 __ mov(rax, rdx); |
0 | 1251 } |
1252 | |
1253 void TemplateTable::lshl() { | |
1254 transition(itos, ltos); | |
1255 __ movl(rcx, rax); // get shift count | |
1256 __ pop_l(rax); // get shift value | |
1257 __ shlq(rax); | |
1258 } | |
1259 | |
1260 void TemplateTable::lshr() { | |
1261 transition(itos, ltos); | |
1262 __ movl(rcx, rax); // get shift count | |
1263 __ pop_l(rax); // get shift value | |
1264 __ sarq(rax); | |
1265 } | |
1266 | |
1267 void TemplateTable::lushr() { | |
1268 transition(itos, ltos); | |
1269 __ movl(rcx, rax); // get shift count | |
1270 __ pop_l(rax); // get shift value | |
1271 __ shrq(rax); | |
1272 } | |
1273 | |
1274 void TemplateTable::fop2(Operation op) { | |
1275 transition(ftos, ftos); | |
1276 switch (op) { | |
1277 case add: | |
1278 __ addss(xmm0, at_rsp()); | |
1506 | 1279 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1280 break; |
1281 case sub: | |
1282 __ movflt(xmm1, xmm0); | |
1283 __ pop_f(xmm0); | |
1284 __ subss(xmm0, xmm1); | |
1285 break; | |
1286 case mul: | |
1287 __ mulss(xmm0, at_rsp()); | |
1506 | 1288 __ addptr(rsp, Interpreter::stackElementSize); |
0 | 1289 break; |
1290 case div: | |
1291 __ movflt(xmm1, xmm0); | |
1292 __ pop_f(xmm0); | |
1293 __ divss(xmm0, xmm1); | |
1294 break; | |
1295 case rem: | |
1296 __ movflt(xmm1, xmm0); | |
1297 __ pop_f(xmm0); | |
1298 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::frem), 2); | |
1299 break; | |
1300 default: | |
1301 ShouldNotReachHere(); | |
1302 break; | |
1303 } | |
1304 } | |
1305 | |
1306 void TemplateTable::dop2(Operation op) { | |
1307 transition(dtos, dtos); | |
1308 switch (op) { | |
1309 case add: | |
1310 __ addsd(xmm0, at_rsp()); | |
1506 | 1311 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1312 break; |
1313 case sub: | |
1314 __ movdbl(xmm1, xmm0); | |
1315 __ pop_d(xmm0); | |
1316 __ subsd(xmm0, xmm1); | |
1317 break; | |
1318 case mul: | |
1319 __ mulsd(xmm0, at_rsp()); | |
1506 | 1320 __ addptr(rsp, 2 * Interpreter::stackElementSize); |
0 | 1321 break; |
1322 case div: | |
1323 __ movdbl(xmm1, xmm0); | |
1324 __ pop_d(xmm0); | |
1325 __ divsd(xmm0, xmm1); | |
1326 break; | |
1327 case rem: | |
1328 __ movdbl(xmm1, xmm0); | |
1329 __ pop_d(xmm0); | |
1330 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::drem), 2); | |
1331 break; | |
1332 default: | |
1333 ShouldNotReachHere(); | |
1334 break; | |
1335 } | |
1336 } | |
1337 | |
1338 void TemplateTable::ineg() { | |
1339 transition(itos, itos); | |
1340 __ negl(rax); | |
1341 } | |
1342 | |
1343 void TemplateTable::lneg() { | |
1344 transition(ltos, ltos); | |
1345 __ negq(rax); | |
1346 } | |
1347 | |
1348 // Note: 'double' and 'long long' have 32-bits alignment on x86. | |
1349 static jlong* double_quadword(jlong *adr, jlong lo, jlong hi) { | |
1350 // Use the expression (adr)&(~0xF) to provide 128-bits aligned address | |
1351 // of 128-bits operands for SSE instructions. | |
1352 jlong *operand = (jlong*)(((intptr_t)adr)&((intptr_t)(~0xF))); | |
1353 // Store the value to a 128-bits operand. | |
1354 operand[0] = lo; | |
1355 operand[1] = hi; | |
1356 return operand; | |
1357 } | |
1358 | |
1359 // Buffer for 128-bits masks used by SSE instructions. | |
1360 static jlong float_signflip_pool[2*2]; | |
1361 static jlong double_signflip_pool[2*2]; | |
1362 | |
1363 void TemplateTable::fneg() { | |
1364 transition(ftos, ftos); | |
1365 static jlong *float_signflip = double_quadword(&float_signflip_pool[1], 0x8000000080000000, 0x8000000080000000); | |
1366 __ xorps(xmm0, ExternalAddress((address) float_signflip)); | |
1367 } | |
1368 | |
1369 void TemplateTable::dneg() { | |
1370 transition(dtos, dtos); | |
1371 static jlong *double_signflip = double_quadword(&double_signflip_pool[1], 0x8000000000000000, 0x8000000000000000); | |
1372 __ xorpd(xmm0, ExternalAddress((address) double_signflip)); | |
1373 } | |
1374 | |
1375 void TemplateTable::iinc() { | |
1376 transition(vtos, vtos); | |
1377 __ load_signed_byte(rdx, at_bcp(2)); // get constant | |
1378 locals_index(rbx); | |
1379 __ addl(iaddress(rbx), rdx); | |
1380 } | |
1381 | |
1382 void TemplateTable::wide_iinc() { | |
1383 transition(vtos, vtos); | |
1384 __ movl(rdx, at_bcp(4)); // get constant | |
1385 locals_index_wide(rbx); | |
1386 __ bswapl(rdx); // swap bytes & sign-extend constant | |
1387 __ sarl(rdx, 16); | |
1388 __ addl(iaddress(rbx), rdx); | |
1389 // Note: should probably use only one movl to get both | |
1390 // the index and the constant -> fix this | |
1391 } | |
1392 | |
1393 void TemplateTable::convert() { | |
1394 // Checking | |
1395 #ifdef ASSERT | |
1396 { | |
1397 TosState tos_in = ilgl; | |
1398 TosState tos_out = ilgl; | |
1399 switch (bytecode()) { | |
1400 case Bytecodes::_i2l: // fall through | |
1401 case Bytecodes::_i2f: // fall through | |
1402 case Bytecodes::_i2d: // fall through | |
1403 case Bytecodes::_i2b: // fall through | |
1404 case Bytecodes::_i2c: // fall through | |
1405 case Bytecodes::_i2s: tos_in = itos; break; | |
1406 case Bytecodes::_l2i: // fall through | |
1407 case Bytecodes::_l2f: // fall through | |
1408 case Bytecodes::_l2d: tos_in = ltos; break; | |
1409 case Bytecodes::_f2i: // fall through | |
1410 case Bytecodes::_f2l: // fall through | |
1411 case Bytecodes::_f2d: tos_in = ftos; break; | |
1412 case Bytecodes::_d2i: // fall through | |
1413 case Bytecodes::_d2l: // fall through | |
1414 case Bytecodes::_d2f: tos_in = dtos; break; | |
1415 default : ShouldNotReachHere(); | |
1416 } | |
1417 switch (bytecode()) { | |
1418 case Bytecodes::_l2i: // fall through | |
1419 case Bytecodes::_f2i: // fall through | |
1420 case Bytecodes::_d2i: // fall through | |
1421 case Bytecodes::_i2b: // fall through | |
1422 case Bytecodes::_i2c: // fall through | |
1423 case Bytecodes::_i2s: tos_out = itos; break; | |
1424 case Bytecodes::_i2l: // fall through | |
1425 case Bytecodes::_f2l: // fall through | |
1426 case Bytecodes::_d2l: tos_out = ltos; break; | |
1427 case Bytecodes::_i2f: // fall through | |
1428 case Bytecodes::_l2f: // fall through | |
1429 case Bytecodes::_d2f: tos_out = ftos; break; | |
1430 case Bytecodes::_i2d: // fall through | |
1431 case Bytecodes::_l2d: // fall through | |
1432 case Bytecodes::_f2d: tos_out = dtos; break; | |
1433 default : ShouldNotReachHere(); | |
1434 } | |
1435 transition(tos_in, tos_out); | |
1436 } | |
1437 #endif // ASSERT | |
1438 | |
1439 static const int64_t is_nan = 0x8000000000000000L; | |
1440 | |
1441 // Conversion | |
1442 switch (bytecode()) { | |
1443 case Bytecodes::_i2l: | |
1444 __ movslq(rax, rax); | |
1445 break; | |
1446 case Bytecodes::_i2f: | |
1447 __ cvtsi2ssl(xmm0, rax); | |
1448 break; | |
1449 case Bytecodes::_i2d: | |
1450 __ cvtsi2sdl(xmm0, rax); | |
1451 break; | |
1452 case Bytecodes::_i2b: | |
1453 __ movsbl(rax, rax); | |
1454 break; | |
1455 case Bytecodes::_i2c: | |
1456 __ movzwl(rax, rax); | |
1457 break; | |
1458 case Bytecodes::_i2s: | |
1459 __ movswl(rax, rax); | |
1460 break; | |
1461 case Bytecodes::_l2i: | |
1462 __ movl(rax, rax); | |
1463 break; | |
1464 case Bytecodes::_l2f: | |
1465 __ cvtsi2ssq(xmm0, rax); | |
1466 break; | |
1467 case Bytecodes::_l2d: | |
1468 __ cvtsi2sdq(xmm0, rax); | |
1469 break; | |
1470 case Bytecodes::_f2i: | |
1471 { | |
1472 Label L; | |
1473 __ cvttss2sil(rax, xmm0); | |
1474 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1475 __ jcc(Assembler::notEqual, L); | |
1476 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2i), 1); | |
1477 __ bind(L); | |
1478 } | |
1479 break; | |
1480 case Bytecodes::_f2l: | |
1481 { | |
1482 Label L; | |
1483 __ cvttss2siq(rax, xmm0); | |
1484 // NaN or overflow/underflow? | |
1485 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1486 __ jcc(Assembler::notEqual, L); | |
1487 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::f2l), 1); | |
1488 __ bind(L); | |
1489 } | |
1490 break; | |
1491 case Bytecodes::_f2d: | |
1492 __ cvtss2sd(xmm0, xmm0); | |
1493 break; | |
1494 case Bytecodes::_d2i: | |
1495 { | |
1496 Label L; | |
1497 __ cvttsd2sil(rax, xmm0); | |
1498 __ cmpl(rax, 0x80000000); // NaN or overflow/underflow? | |
1499 __ jcc(Assembler::notEqual, L); | |
1500 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2i), 1); | |
1501 __ bind(L); | |
1502 } | |
1503 break; | |
1504 case Bytecodes::_d2l: | |
1505 { | |
1506 Label L; | |
1507 __ cvttsd2siq(rax, xmm0); | |
1508 // NaN or overflow/underflow? | |
1509 __ cmp64(rax, ExternalAddress((address) &is_nan)); | |
1510 __ jcc(Assembler::notEqual, L); | |
1511 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::d2l), 1); | |
1512 __ bind(L); | |
1513 } | |
1514 break; | |
1515 case Bytecodes::_d2f: | |
1516 __ cvtsd2ss(xmm0, xmm0); | |
1517 break; | |
1518 default: | |
1519 ShouldNotReachHere(); | |
1520 } | |
1521 } | |
1522 | |
1523 void TemplateTable::lcmp() { | |
1524 transition(ltos, itos); | |
1525 Label done; | |
1526 __ pop_l(rdx); | |
1527 __ cmpq(rdx, rax); | |
1528 __ movl(rax, -1); | |
1529 __ jccb(Assembler::less, done); | |
1530 __ setb(Assembler::notEqual, rax); | |
1531 __ movzbl(rax, rax); | |
1532 __ bind(done); | |
1533 } | |
1534 | |
1535 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1536 Label done; | |
1537 if (is_float) { | |
1538 // XXX get rid of pop here, use ... reg, mem32 | |
1539 __ pop_f(xmm1); | |
1540 __ ucomiss(xmm1, xmm0); | |
1541 } else { | |
1542 // XXX get rid of pop here, use ... reg, mem64 | |
1543 __ pop_d(xmm1); | |
1544 __ ucomisd(xmm1, xmm0); | |
1545 } | |
1546 if (unordered_result < 0) { | |
1547 __ movl(rax, -1); | |
1548 __ jccb(Assembler::parity, done); | |
1549 __ jccb(Assembler::below, done); | |
1550 __ setb(Assembler::notEqual, rdx); | |
1551 __ movzbl(rax, rdx); | |
1552 } else { | |
1553 __ movl(rax, 1); | |
1554 __ jccb(Assembler::parity, done); | |
1555 __ jccb(Assembler::above, done); | |
1556 __ movl(rax, 0); | |
1557 __ jccb(Assembler::equal, done); | |
1558 __ decrementl(rax); | |
1559 } | |
1560 __ bind(done); | |
1561 } | |
1562 | |
1563 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1564 __ get_method(rcx); // rcx holds method | |
1565 __ profile_taken_branch(rax, rbx); // rax holds updated MDP, rbx | |
1566 // holds bumped taken count | |
1567 | |
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1568 const ByteSize be_offset = MethodCounters::backedge_counter_offset() + |
0 | 1569 InvocationCounter::counter_offset(); |
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1570 const ByteSize inv_offset = MethodCounters::invocation_counter_offset() + |
0 | 1571 InvocationCounter::counter_offset(); |
1572 | |
1573 // Load up edx with the branch displacement | |
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1574 if (is_wide) { |
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1575 __ movl(rdx, at_bcp(1)); |
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1576 } else { |
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1577 __ load_signed_short(rdx, at_bcp(1)); |
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1578 } |
0 | 1579 __ bswapl(rdx); |
1580 | |
1581 if (!is_wide) { | |
1582 __ sarl(rdx, 16); | |
1583 } | |
304 | 1584 __ movl2ptr(rdx, rdx); |
0 | 1585 |
1586 // Handle all the JSR stuff here, then exit. | |
1587 // It's much shorter and cleaner than intermingling with the non-JSR | |
605 | 1588 // normal-branch stuff occurring below. |
0 | 1589 if (is_jsr) { |
1590 // Pre-load the next target bytecode into rbx | |
1591 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1, 0)); | |
1592 | |
1593 // compute return address as bci in rax | |
304 | 1594 __ lea(rax, at_bcp((is_wide ? 5 : 3) - |
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1595 in_bytes(ConstMethod::codes_offset()))); |
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1596 __ subptr(rax, Address(rcx, Method::const_offset())); |
0 | 1597 // Adjust the bcp in r13 by the displacement in rdx |
304 | 1598 __ addptr(r13, rdx); |
0 | 1599 // jsr returns atos that is not an oop |
1600 __ push_i(rax); | |
1601 __ dispatch_only(vtos); | |
1602 return; | |
1603 } | |
1604 | |
1605 // Normal (non-jsr) branch handling | |
1606 | |
1607 // Adjust the bcp in r13 by the displacement in rdx | |
304 | 1608 __ addptr(r13, rdx); |
0 | 1609 |
1610 assert(UseLoopCounter || !UseOnStackReplacement, | |
1611 "on-stack-replacement requires loop counters"); | |
1612 Label backedge_counter_overflow; | |
1613 Label profile_method; | |
1614 Label dispatch; | |
1615 if (UseLoopCounter) { | |
1616 // increment backedge counter for backward branches | |
1617 // rax: MDO | |
1618 // ebx: MDO bumped taken-count | |
1619 // rcx: method | |
1620 // rdx: target offset | |
1621 // r13: target bcp | |
1622 // r14: locals pointer | |
1623 __ testl(rdx, rdx); // check if forward or backward branch | |
1624 __ jcc(Assembler::positive, dispatch); // count only if backward branch | |
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1625 |
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1626 // check if MethodCounters exists |
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1627 Label has_counters; |
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1628 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1629 __ testptr(rax, rax); |
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1630 __ jcc(Assembler::notZero, has_counters); |
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1631 __ push(rdx); |
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1632 __ push(rcx); |
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1633 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::build_method_counters), |
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1634 rcx); |
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1635 __ pop(rcx); |
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1636 __ pop(rdx); |
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1637 __ movptr(rax, Address(rcx, Method::method_counters_offset())); |
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1638 __ jcc(Assembler::zero, dispatch); |
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1639 __ bind(has_counters); |
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1640 |
1783 | 1641 if (TieredCompilation) { |
1642 Label no_mdo; | |
1643 int increment = InvocationCounter::count_increment; | |
1644 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1645 if (ProfileInterpreter) { | |
1646 // Are we profiling? | |
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1647 __ movptr(rbx, Address(rcx, in_bytes(Method::method_data_offset()))); |
1783 | 1648 __ testptr(rbx, rbx); |
1649 __ jccb(Assembler::zero, no_mdo); | |
1650 // Increment the MDO backedge counter | |
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1651 const Address mdo_backedge_counter(rbx, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1652 in_bytes(InvocationCounter::counter_offset())); |
1653 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, | |
1654 rax, false, Assembler::zero, &backedge_counter_overflow); | |
1655 __ jmp(dispatch); | |
0 | 1656 } |
1783 | 1657 __ bind(no_mdo); |
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1658 // Increment backedge counter in MethodCounters* |
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1659 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
1783 | 1660 __ increment_mask_and_jump(Address(rcx, be_offset), increment, mask, |
1661 rax, false, Assembler::zero, &backedge_counter_overflow); | |
0 | 1662 } else { |
1783 | 1663 // increment counter |
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1664 __ movptr(rcx, Address(rcx, Method::method_counters_offset())); |
1783 | 1665 __ movl(rax, Address(rcx, be_offset)); // load backedge counter |
1666 __ incrementl(rax, InvocationCounter::count_increment); // increment counter | |
1667 __ movl(Address(rcx, be_offset), rax); // store counter | |
1668 | |
1669 __ movl(rax, Address(rcx, inv_offset)); // load invocation counter | |
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1670 |
1783 | 1671 __ andl(rax, InvocationCounter::count_mask_value); // and the status bits |
1672 __ addl(rax, Address(rcx, be_offset)); // add both counters | |
1673 | |
1674 if (ProfileInterpreter) { | |
1675 // Test to see if we should create a method data oop | |
0 | 1676 __ cmp32(rax, |
1783 | 1677 ExternalAddress((address) &InvocationCounter::InterpreterProfileLimit)); |
1678 __ jcc(Assembler::less, dispatch); | |
1679 | |
1680 // if no method data exists, go to profile method | |
1681 __ test_method_data_pointer(rax, profile_method); | |
1682 | |
1683 if (UseOnStackReplacement) { | |
1684 // check for overflow against ebx which is the MDO taken count | |
1685 __ cmp32(rbx, | |
1686 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1687 __ jcc(Assembler::below, dispatch); | |
1688 | |
1689 // When ProfileInterpreter is on, the backedge_count comes | |
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1690 // from the MethodData*, which value does not get reset on |
1783 | 1691 // the call to frequency_counter_overflow(). To avoid |
1692 // excessive calls to the overflow routine while the method is | |
1693 // being compiled, add a second test to make sure the overflow | |
1694 // function is called only once every overflow_frequency. | |
1695 const int overflow_frequency = 1024; | |
1696 __ andl(rbx, overflow_frequency - 1); | |
1697 __ jcc(Assembler::zero, backedge_counter_overflow); | |
1698 | |
1699 } | |
1700 } else { | |
1701 if (UseOnStackReplacement) { | |
1702 // check for overflow against eax, which is the sum of the | |
1703 // counters | |
1704 __ cmp32(rax, | |
1705 ExternalAddress((address) &InvocationCounter::InterpreterBackwardBranchLimit)); | |
1706 __ jcc(Assembler::aboveEqual, backedge_counter_overflow); | |
1707 | |
1708 } | |
0 | 1709 } |
1710 } | |
1711 __ bind(dispatch); | |
1712 } | |
1713 | |
1714 // Pre-load the next target bytecode into rbx | |
1715 __ load_unsigned_byte(rbx, Address(r13, 0)); | |
1716 | |
1717 // continue with the bytecode @ target | |
1718 // eax: return bci for jsr's, unused otherwise | |
1719 // ebx: target bytecode | |
1720 // r13: target bcp | |
1721 __ dispatch_only(vtos); | |
1722 | |
1723 if (UseLoopCounter) { | |
1724 if (ProfileInterpreter) { | |
1725 // Out-of-line code to allocate method data oop. | |
1726 __ bind(profile_method); | |
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1727 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::profile_method)); |
0 | 1728 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode |
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1729 __ set_method_data_pointer_for_bcp(); |
0 | 1730 __ jmp(dispatch); |
1731 } | |
1732 | |
1733 if (UseOnStackReplacement) { | |
1734 // invocation counter overflow | |
1735 __ bind(backedge_counter_overflow); | |
304 | 1736 __ negptr(rdx); |
1737 __ addptr(rdx, r13); // branch bcp | |
0 | 1738 // IcoResult frequency_counter_overflow([JavaThread*], address branch_bcp) |
1739 __ call_VM(noreg, | |
1740 CAST_FROM_FN_PTR(address, | |
1741 InterpreterRuntime::frequency_counter_overflow), | |
1742 rdx); | |
1743 __ load_unsigned_byte(rbx, Address(r13, 0)); // restore target bytecode | |
1744 | |
1745 // rax: osr nmethod (osr ok) or NULL (osr not possible) | |
1746 // ebx: target bytecode | |
1747 // rdx: scratch | |
1748 // r14: locals pointer | |
1749 // r13: bcp | |
304 | 1750 __ testptr(rax, rax); // test result |
0 | 1751 __ jcc(Assembler::zero, dispatch); // no osr if null |
1752 // nmethod may have been invalidated (VM may block upon call_VM return) | |
1753 __ movl(rcx, Address(rax, nmethod::entry_bci_offset())); | |
1754 __ cmpl(rcx, InvalidOSREntryBci); | |
1755 __ jcc(Assembler::equal, dispatch); | |
1756 | |
1757 // We have the address of an on stack replacement routine in eax | |
1758 // We need to prepare to execute the OSR method. First we must | |
1759 // migrate the locals and monitors off of the stack. | |
1760 | |
304 | 1761 __ mov(r13, rax); // save the nmethod |
0 | 1762 |
1763 call_VM(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin)); | |
1764 | |
1765 // eax is OSR buffer, move it to expected parameter location | |
304 | 1766 __ mov(j_rarg0, rax); |
0 | 1767 |
1768 // We use j_rarg definitions here so that registers don't conflict as parameter | |
1769 // registers change across platforms as we are in the midst of a calling | |
1770 // sequence to the OSR nmethod and we don't want collision. These are NOT parameters. | |
1771 | |
1772 const Register retaddr = j_rarg2; | |
1773 const Register sender_sp = j_rarg1; | |
1774 | |
1775 // pop the interpreter frame | |
304 | 1776 __ movptr(sender_sp, Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize)); // get sender sp |
0 | 1777 __ leave(); // remove frame anchor |
304 | 1778 __ pop(retaddr); // get return address |
1779 __ mov(rsp, sender_sp); // set sp to sender sp | |
0 | 1780 // Ensure compiled code always sees stack at proper alignment |
304 | 1781 __ andptr(rsp, -(StackAlignmentInBytes)); |
0 | 1782 |
1783 // unlike x86 we need no specialized return from compiled code | |
1784 // to the interpreter or the call stub. | |
1785 | |
1786 // push the return address | |
304 | 1787 __ push(retaddr); |
0 | 1788 |
1789 // and begin the OSR nmethod | |
1790 __ jmp(Address(r13, nmethod::osr_entry_point_offset())); | |
1791 } | |
1792 } | |
1793 } | |
1794 | |
1795 | |
1796 void TemplateTable::if_0cmp(Condition cc) { | |
1797 transition(itos, vtos); | |
1798 // assume branch is more often taken than not (loops use backward branches) | |
1799 Label not_taken; | |
1800 __ testl(rax, rax); | |
1801 __ jcc(j_not(cc), not_taken); | |
1802 branch(false, false); | |
1803 __ bind(not_taken); | |
1804 __ profile_not_taken_branch(rax); | |
1805 } | |
1806 | |
1807 void TemplateTable::if_icmp(Condition cc) { | |
1808 transition(itos, vtos); | |
1809 // assume branch is more often taken than not (loops use backward branches) | |
1810 Label not_taken; | |
1811 __ pop_i(rdx); | |
1812 __ cmpl(rdx, rax); | |
1813 __ jcc(j_not(cc), not_taken); | |
1814 branch(false, false); | |
1815 __ bind(not_taken); | |
1816 __ profile_not_taken_branch(rax); | |
1817 } | |
1818 | |
1819 void TemplateTable::if_nullcmp(Condition cc) { | |
1820 transition(atos, vtos); | |
1821 // assume branch is more often taken than not (loops use backward branches) | |
1822 Label not_taken; | |
304 | 1823 __ testptr(rax, rax); |
0 | 1824 __ jcc(j_not(cc), not_taken); |
1825 branch(false, false); | |
1826 __ bind(not_taken); | |
1827 __ profile_not_taken_branch(rax); | |
1828 } | |
1829 | |
1830 void TemplateTable::if_acmp(Condition cc) { | |
1831 transition(atos, vtos); | |
1832 // assume branch is more often taken than not (loops use backward branches) | |
1833 Label not_taken; | |
1834 __ pop_ptr(rdx); | |
304 | 1835 __ cmpptr(rdx, rax); |
0 | 1836 __ jcc(j_not(cc), not_taken); |
1837 branch(false, false); | |
1838 __ bind(not_taken); | |
1839 __ profile_not_taken_branch(rax); | |
1840 } | |
1841 | |
1842 void TemplateTable::ret() { | |
1843 transition(vtos, vtos); | |
1844 locals_index(rbx); | |
304 | 1845 __ movslq(rbx, iaddress(rbx)); // get return bci, compute return bcp |
0 | 1846 __ profile_ret(rbx, rcx); |
1847 __ get_method(rax); | |
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1848 __ movptr(r13, Address(rax, Method::const_offset())); |
304 | 1849 __ lea(r13, Address(r13, rbx, Address::times_1, |
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1850 ConstMethod::codes_offset())); |
0 | 1851 __ dispatch_next(vtos); |
1852 } | |
1853 | |
1854 void TemplateTable::wide_ret() { | |
1855 transition(vtos, vtos); | |
1856 locals_index_wide(rbx); | |
304 | 1857 __ movptr(rbx, aaddress(rbx)); // get return bci, compute return bcp |
0 | 1858 __ profile_ret(rbx, rcx); |
1859 __ get_method(rax); | |
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1860 __ movptr(r13, Address(rax, Method::const_offset())); |
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1861 __ lea(r13, Address(r13, rbx, Address::times_1, ConstMethod::codes_offset())); |
0 | 1862 __ dispatch_next(vtos); |
1863 } | |
1864 | |
1865 void TemplateTable::tableswitch() { | |
1866 Label default_case, continue_execution; | |
1867 transition(itos, vtos); | |
1868 // align r13 | |
304 | 1869 __ lea(rbx, at_bcp(BytesPerInt)); |
1870 __ andptr(rbx, -BytesPerInt); | |
0 | 1871 // load lo & hi |
1872 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1873 __ movl(rdx, Address(rbx, 2 * BytesPerInt)); | |
1874 __ bswapl(rcx); | |
1875 __ bswapl(rdx); | |
1876 // check against lo & hi | |
1877 __ cmpl(rax, rcx); | |
1878 __ jcc(Assembler::less, default_case); | |
1879 __ cmpl(rax, rdx); | |
1880 __ jcc(Assembler::greater, default_case); | |
1881 // lookup dispatch offset | |
1882 __ subl(rax, rcx); | |
1883 __ movl(rdx, Address(rbx, rax, Address::times_4, 3 * BytesPerInt)); | |
1884 __ profile_switch_case(rax, rbx, rcx); | |
1885 // continue execution | |
1886 __ bind(continue_execution); | |
1887 __ bswapl(rdx); | |
304 | 1888 __ movl2ptr(rdx, rdx); |
0 | 1889 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1890 __ addptr(r13, rdx); |
0 | 1891 __ dispatch_only(vtos); |
1892 // handle default | |
1893 __ bind(default_case); | |
1894 __ profile_switch_default(rax); | |
1895 __ movl(rdx, Address(rbx, 0)); | |
1896 __ jmp(continue_execution); | |
1897 } | |
1898 | |
1899 void TemplateTable::lookupswitch() { | |
1900 transition(itos, itos); | |
1901 __ stop("lookupswitch bytecode should have been rewritten"); | |
1902 } | |
1903 | |
1904 void TemplateTable::fast_linearswitch() { | |
1905 transition(itos, vtos); | |
1906 Label loop_entry, loop, found, continue_execution; | |
1907 // bswap rax so we can avoid bswapping the table entries | |
1908 __ bswapl(rax); | |
1909 // align r13 | |
304 | 1910 __ lea(rbx, at_bcp(BytesPerInt)); // btw: should be able to get rid of |
1911 // this instruction (change offsets | |
1912 // below) | |
1913 __ andptr(rbx, -BytesPerInt); | |
0 | 1914 // set counter |
1915 __ movl(rcx, Address(rbx, BytesPerInt)); | |
1916 __ bswapl(rcx); | |
1917 __ jmpb(loop_entry); | |
1918 // table search | |
1919 __ bind(loop); | |
1920 __ cmpl(rax, Address(rbx, rcx, Address::times_8, 2 * BytesPerInt)); | |
1921 __ jcc(Assembler::equal, found); | |
1922 __ bind(loop_entry); | |
1923 __ decrementl(rcx); | |
1924 __ jcc(Assembler::greaterEqual, loop); | |
1925 // default case | |
1926 __ profile_switch_default(rax); | |
1927 __ movl(rdx, Address(rbx, 0)); | |
1928 __ jmp(continue_execution); | |
1929 // entry found -> get offset | |
1930 __ bind(found); | |
1931 __ movl(rdx, Address(rbx, rcx, Address::times_8, 3 * BytesPerInt)); | |
1932 __ profile_switch_case(rcx, rax, rbx); | |
1933 // continue execution | |
1934 __ bind(continue_execution); | |
1935 __ bswapl(rdx); | |
304 | 1936 __ movl2ptr(rdx, rdx); |
0 | 1937 __ load_unsigned_byte(rbx, Address(r13, rdx, Address::times_1)); |
304 | 1938 __ addptr(r13, rdx); |
0 | 1939 __ dispatch_only(vtos); |
1940 } | |
1941 | |
1942 void TemplateTable::fast_binaryswitch() { | |
1943 transition(itos, vtos); | |
1944 // Implementation using the following core algorithm: | |
1945 // | |
1946 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1947 // // Binary search according to "Methodik des Programmierens" by | |
1948 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1949 // int i = 0; | |
1950 // int j = n; | |
1951 // while (i+1 < j) { | |
1952 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1953 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1954 // // where a stands for the array and assuming that the (inexisting) | |
1955 // // element a[n] is infinitely big. | |
1956 // int h = (i + j) >> 1; | |
1957 // // i < h < j | |
1958 // if (key < array[h].fast_match()) { | |
1959 // j = h; | |
1960 // } else { | |
1961 // i = h; | |
1962 // } | |
1963 // } | |
1964 // // R: a[i] <= key < a[i+1] or Q | |
1965 // // (i.e., if key is within array, i is the correct index) | |
1966 // return i; | |
1967 // } | |
1968 | |
1969 // Register allocation | |
1970 const Register key = rax; // already set (tosca) | |
1971 const Register array = rbx; | |
1972 const Register i = rcx; | |
1973 const Register j = rdx; | |
1974 const Register h = rdi; | |
1975 const Register temp = rsi; | |
1976 | |
1977 // Find array start | |
304 | 1978 __ lea(array, at_bcp(3 * BytesPerInt)); // btw: should be able to |
1979 // get rid of this | |
1980 // instruction (change | |
1981 // offsets below) | |
1982 __ andptr(array, -BytesPerInt); | |
0 | 1983 |
1984 // Initialize i & j | |
1985 __ xorl(i, i); // i = 0; | |
1986 __ movl(j, Address(array, -BytesPerInt)); // j = length(array); | |
1987 | |
1988 // Convert j into native byteordering | |
1989 __ bswapl(j); | |
1990 | |
1991 // And start | |
1992 Label entry; | |
1993 __ jmp(entry); | |
1994 | |
1995 // binary search loop | |
1996 { | |
1997 Label loop; | |
1998 __ bind(loop); | |
1999 // int h = (i + j) >> 1; | |
2000 __ leal(h, Address(i, j, Address::times_1)); // h = i + j; | |
2001 __ sarl(h, 1); // h = (i + j) >> 1; | |
2002 // if (key < array[h].fast_match()) { | |
2003 // j = h; | |
2004 // } else { | |
2005 // i = h; | |
2006 // } | |
2007 // Convert array[h].match to native byte-ordering before compare | |
2008 __ movl(temp, Address(array, h, Address::times_8)); | |
2009 __ bswapl(temp); | |
2010 __ cmpl(key, temp); | |
2011 // j = h if (key < array[h].fast_match()) | |
2012 __ cmovl(Assembler::less, j, h); | |
2013 // i = h if (key >= array[h].fast_match()) | |
2014 __ cmovl(Assembler::greaterEqual, i, h); | |
2015 // while (i+1 < j) | |
2016 __ bind(entry); | |
2017 __ leal(h, Address(i, 1)); // i+1 | |
2018 __ cmpl(h, j); // i+1 < j | |
2019 __ jcc(Assembler::less, loop); | |
2020 } | |
2021 | |
2022 // end of binary search, result index is i (must check again!) | |
2023 Label default_case; | |
2024 // Convert array[i].match to native byte-ordering before compare | |
2025 __ movl(temp, Address(array, i, Address::times_8)); | |
2026 __ bswapl(temp); | |
2027 __ cmpl(key, temp); | |
2028 __ jcc(Assembler::notEqual, default_case); | |
2029 | |
2030 // entry found -> j = offset | |
2031 __ movl(j , Address(array, i, Address::times_8, BytesPerInt)); | |
2032 __ profile_switch_case(i, key, array); | |
2033 __ bswapl(j); | |
304 | 2034 __ movl2ptr(j, j); |
0 | 2035 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2036 __ addptr(r13, j); |
0 | 2037 __ dispatch_only(vtos); |
2038 | |
2039 // default case -> j = default offset | |
2040 __ bind(default_case); | |
2041 __ profile_switch_default(i); | |
2042 __ movl(j, Address(array, -2 * BytesPerInt)); | |
2043 __ bswapl(j); | |
304 | 2044 __ movl2ptr(j, j); |
0 | 2045 __ load_unsigned_byte(rbx, Address(r13, j, Address::times_1)); |
304 | 2046 __ addptr(r13, j); |
0 | 2047 __ dispatch_only(vtos); |
2048 } | |
2049 | |
2050 | |
2051 void TemplateTable::_return(TosState state) { | |
2052 transition(state, state); | |
2053 assert(_desc->calls_vm(), | |
2054 "inconsistent calls_vm information"); // call in remove_activation | |
2055 | |
2056 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2057 assert(state == vtos, "only valid state"); | |
304 | 2058 __ movptr(c_rarg1, aaddress(0)); |
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2059 __ load_klass(rdi, c_rarg1); |
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2060 __ movl(rdi, Address(rdi, Klass::access_flags_offset())); |
0 | 2061 __ testl(rdi, JVM_ACC_HAS_FINALIZER); |
2062 Label skip_register_finalizer; | |
2063 __ jcc(Assembler::zero, skip_register_finalizer); | |
2064 | |
2065 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), c_rarg1); | |
2066 | |
2067 __ bind(skip_register_finalizer); | |
2068 } | |
2069 | |
2070 __ remove_activation(state, r13); | |
2071 __ jmp(r13); | |
2072 } | |
2073 | |
2074 // ---------------------------------------------------------------------------- | |
2075 // Volatile variables demand their effects be made known to all CPU's | |
2076 // in order. Store buffers on most chips allow reads & writes to | |
2077 // reorder; the JMM's ReadAfterWrite.java test fails in -Xint mode | |
2078 // without some kind of memory barrier (i.e., it's not sufficient that | |
2079 // the interpreter does not reorder volatile references, the hardware | |
2080 // also must not reorder them). | |
2081 // | |
2082 // According to the new Java Memory Model (JMM): | |
2083 // (1) All volatiles are serialized wrt to each other. ALSO reads & | |
2084 // writes act as aquire & release, so: | |
2085 // (2) A read cannot let unrelated NON-volatile memory refs that | |
2086 // happen after the read float up to before the read. It's OK for | |
2087 // non-volatile memory refs that happen before the volatile read to | |
2088 // float down below it. | |
2089 // (3) Similar a volatile write cannot let unrelated NON-volatile | |
2090 // memory refs that happen BEFORE the write float down to after the | |
2091 // write. It's OK for non-volatile memory refs that happen after the | |
2092 // volatile write to float up before it. | |
2093 // | |
2094 // We only put in barriers around volatile refs (they are expensive), | |
2095 // not _between_ memory refs (that would require us to track the | |
2096 // flavor of the previous memory refs). Requirements (2) and (3) | |
2097 // require some barriers before volatile stores and after volatile | |
2098 // loads. These nearly cover requirement (1) but miss the | |
2099 // volatile-store-volatile-load case. This final case is placed after | |
2100 // volatile-stores although it could just as well go before | |
2101 // volatile-loads. | |
2102 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits | |
2103 order_constraint) { | |
2104 // Helper function to insert a is-volatile test and memory barrier | |
2105 if (os::is_MP()) { // Not needed on single CPU | |
2106 __ membar(order_constraint); | |
2107 } | |
2108 } | |
2109 | |
1565 | 2110 void TemplateTable::resolve_cache_and_index(int byte_no, |
2111 Register Rcache, | |
2112 Register index, | |
2113 size_t index_size) { | |
0 | 2114 const Register temp = rbx; |
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2115 assert_different_registers(Rcache, index, temp); |
1565 | 2116 |
0 | 2117 Label resolved; |
1565 | 2118 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2119 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, temp, byte_no, 1, index_size); |
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2120 __ cmpl(temp, (int) bytecode()); // have we resolved this bytecode? |
1108 | 2121 __ jcc(Assembler::equal, resolved); |
0 | 2122 |
2123 // resolve first time through | |
2124 address entry; | |
2125 switch (bytecode()) { | |
2126 case Bytecodes::_getstatic: | |
2127 case Bytecodes::_putstatic: | |
2128 case Bytecodes::_getfield: | |
2129 case Bytecodes::_putfield: | |
2130 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); | |
2131 break; | |
2132 case Bytecodes::_invokevirtual: | |
2133 case Bytecodes::_invokespecial: | |
2134 case Bytecodes::_invokestatic: | |
2135 case Bytecodes::_invokeinterface: | |
2136 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); | |
2137 break; | |
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2138 case Bytecodes::_invokehandle: |
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2139 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); |
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2140 break; |
1108 | 2141 case Bytecodes::_invokedynamic: |
2142 entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); | |
2143 break; | |
0 | 2144 default: |
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2145 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
0 | 2146 break; |
2147 } | |
2148 __ movl(temp, (int) bytecode()); | |
2149 __ call_VM(noreg, entry, temp); | |
2150 | |
2151 // Update registers with resolved info | |
1565 | 2152 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2153 __ bind(resolved); |
2154 } | |
2155 | |
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2156 // The cache and index registers must be set before call |
0 | 2157 void TemplateTable::load_field_cp_cache_entry(Register obj, |
2158 Register cache, | |
2159 Register index, | |
2160 Register off, | |
2161 Register flags, | |
2162 bool is_static = false) { | |
2163 assert_different_registers(cache, index, flags, off); | |
2164 | |
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2165 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2166 // Field offset |
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2167 __ movptr(off, Address(cache, index, Address::times_ptr, |
304 | 2168 in_bytes(cp_base_offset + |
2169 ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2170 // Flags |
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2171 __ movl(flags, Address(cache, index, Address::times_ptr, |
0 | 2172 in_bytes(cp_base_offset + |
2173 ConstantPoolCacheEntry::flags_offset()))); | |
2174 | |
2175 // klass overwrite register | |
2176 if (is_static) { | |
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2177 __ movptr(obj, Address(cache, index, Address::times_ptr, |
304 | 2178 in_bytes(cp_base_offset + |
2179 ConstantPoolCacheEntry::f1_offset()))); | |
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2180 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2181 __ movptr(obj, Address(obj, mirror_offset)); |
0 | 2182 } |
2183 } | |
2184 | |
2185 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
2186 Register method, | |
2187 Register itable_index, | |
2188 Register flags, | |
2189 bool is_invokevirtual, | |
1565 | 2190 bool is_invokevfinal, /*unused*/ |
2191 bool is_invokedynamic) { | |
0 | 2192 // setup registers |
2193 const Register cache = rcx; | |
2194 const Register index = rdx; | |
2195 assert_different_registers(method, flags); | |
2196 assert_different_registers(method, cache, index); | |
2197 assert_different_registers(itable_index, flags); | |
2198 assert_different_registers(itable_index, cache, index); | |
2199 // determine constant pool cache field offsets | |
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2200 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2201 const int method_offset = in_bytes( |
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2202 ConstantPoolCache::base_offset() + |
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2203 ((byte_no == f2_byte) |
0 | 2204 ? ConstantPoolCacheEntry::f2_offset() |
2205 : ConstantPoolCacheEntry::f1_offset())); | |
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2206 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2207 ConstantPoolCacheEntry::flags_offset()); |
2208 // access constant pool cache fields | |
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2209 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2210 ConstantPoolCacheEntry::f2_offset()); |
2211 | |
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2212 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2213 resolve_cache_and_index(byte_no, cache, index, index_size); |
1565 | 2214 __ movptr(method, Address(cache, index, Address::times_ptr, method_offset)); |
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2215 |
0 | 2216 if (itable_index != noreg) { |
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2217 // pick up itable or appendix index from f2 also: |
1565 | 2218 __ movptr(itable_index, Address(cache, index, Address::times_ptr, index_offset)); |
0 | 2219 } |
1565 | 2220 __ movl(flags, Address(cache, index, Address::times_ptr, flags_offset)); |
0 | 2221 } |
2222 | |
2223 // Correct values of the cache and index registers are preserved. | |
2224 void TemplateTable::jvmti_post_field_access(Register cache, Register index, | |
2225 bool is_static, bool has_tos) { | |
2226 // do the JVMTI work here to avoid disturbing the register state below | |
2227 // We use c_rarg registers here because we want to use the register used in | |
2228 // the call to the VM | |
2229 if (JvmtiExport::can_post_field_access()) { | |
2230 // Check to see if a field access watch has been set before we | |
2231 // take the time to call into the VM. | |
2232 Label L1; | |
2233 assert_different_registers(cache, index, rax); | |
2234 __ mov32(rax, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2235 __ testl(rax, rax); | |
2236 __ jcc(Assembler::zero, L1); | |
2237 | |
2238 __ get_cache_and_index_at_bcp(c_rarg2, c_rarg3, 1); | |
2239 | |
2240 // cache entry pointer | |
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2241 __ addptr(c_rarg2, in_bytes(ConstantPoolCache::base_offset())); |
0 | 2242 __ shll(c_rarg3, LogBytesPerWord); |
304 | 2243 __ addptr(c_rarg2, c_rarg3); |
0 | 2244 if (is_static) { |
2245 __ xorl(c_rarg1, c_rarg1); // NULL object reference | |
2246 } else { | |
304 | 2247 __ movptr(c_rarg1, at_tos()); // get object pointer without popping it |
0 | 2248 __ verify_oop(c_rarg1); |
2249 } | |
2250 // c_rarg1: object pointer or NULL | |
2251 // c_rarg2: cache entry pointer | |
2252 // c_rarg3: jvalue object on the stack | |
2253 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
2254 InterpreterRuntime::post_field_access), | |
2255 c_rarg1, c_rarg2, c_rarg3); | |
2256 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2257 __ bind(L1); | |
2258 } | |
2259 } | |
2260 | |
2261 void TemplateTable::pop_and_check_object(Register r) { | |
2262 __ pop_ptr(r); | |
2263 __ null_check(r); // for field access must check obj. | |
2264 __ verify_oop(r); | |
2265 } | |
2266 | |
2267 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2268 transition(vtos, vtos); | |
2269 | |
2270 const Register cache = rcx; | |
2271 const Register index = rdx; | |
2272 const Register obj = c_rarg3; | |
2273 const Register off = rbx; | |
2274 const Register flags = rax; | |
2275 const Register bc = c_rarg3; // uses same reg as obj, so don't mix them | |
2276 | |
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2277 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2278 jvmti_post_field_access(cache, index, is_static, false); |
2279 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2280 | |
2281 if (!is_static) { | |
2282 // obj is on the stack | |
2283 pop_and_check_object(obj); | |
2284 } | |
2285 | |
2286 const Address field(obj, off, Address::times_1); | |
2287 | |
2288 Label Done, notByte, notInt, notShort, notChar, | |
2289 notLong, notFloat, notObj, notDouble; | |
2290 | |
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2291 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2292 // Make sure we don't need to mask edx after the above shift |
0 | 2293 assert(btos == 0, "change code, btos != 0"); |
2294 | |
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2295 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2296 __ jcc(Assembler::notZero, notByte); |
2297 // btos | |
2298 __ load_signed_byte(rax, field); | |
2299 __ push(btos); | |
2300 // Rewrite bytecode to be faster | |
2301 if (!is_static) { | |
2302 patch_bytecode(Bytecodes::_fast_bgetfield, bc, rbx); | |
2303 } | |
2304 __ jmp(Done); | |
2305 | |
2306 __ bind(notByte); | |
2307 __ cmpl(flags, atos); | |
2308 __ jcc(Assembler::notEqual, notObj); | |
2309 // atos | |
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2310 __ load_heap_oop(rax, field); |
0 | 2311 __ push(atos); |
2312 if (!is_static) { | |
2313 patch_bytecode(Bytecodes::_fast_agetfield, bc, rbx); | |
2314 } | |
2315 __ jmp(Done); | |
2316 | |
2317 __ bind(notObj); | |
2318 __ cmpl(flags, itos); | |
2319 __ jcc(Assembler::notEqual, notInt); | |
2320 // itos | |
2321 __ movl(rax, field); | |
2322 __ push(itos); | |
2323 // Rewrite bytecode to be faster | |
2324 if (!is_static) { | |
2325 patch_bytecode(Bytecodes::_fast_igetfield, bc, rbx); | |
2326 } | |
2327 __ jmp(Done); | |
2328 | |
2329 __ bind(notInt); | |
2330 __ cmpl(flags, ctos); | |
2331 __ jcc(Assembler::notEqual, notChar); | |
2332 // ctos | |
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2333 __ load_unsigned_short(rax, field); |
0 | 2334 __ push(ctos); |
2335 // Rewrite bytecode to be faster | |
2336 if (!is_static) { | |
2337 patch_bytecode(Bytecodes::_fast_cgetfield, bc, rbx); | |
2338 } | |
2339 __ jmp(Done); | |
2340 | |
2341 __ bind(notChar); | |
2342 __ cmpl(flags, stos); | |
2343 __ jcc(Assembler::notEqual, notShort); | |
2344 // stos | |
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2345 __ load_signed_short(rax, field); |
0 | 2346 __ push(stos); |
2347 // Rewrite bytecode to be faster | |
2348 if (!is_static) { | |
2349 patch_bytecode(Bytecodes::_fast_sgetfield, bc, rbx); | |
2350 } | |
2351 __ jmp(Done); | |
2352 | |
2353 __ bind(notShort); | |
2354 __ cmpl(flags, ltos); | |
2355 __ jcc(Assembler::notEqual, notLong); | |
2356 // ltos | |
2357 __ movq(rax, field); | |
2358 __ push(ltos); | |
2359 // Rewrite bytecode to be faster | |
2360 if (!is_static) { | |
2361 patch_bytecode(Bytecodes::_fast_lgetfield, bc, rbx); | |
2362 } | |
2363 __ jmp(Done); | |
2364 | |
2365 __ bind(notLong); | |
2366 __ cmpl(flags, ftos); | |
2367 __ jcc(Assembler::notEqual, notFloat); | |
2368 // ftos | |
2369 __ movflt(xmm0, field); | |
2370 __ push(ftos); | |
2371 // Rewrite bytecode to be faster | |
2372 if (!is_static) { | |
2373 patch_bytecode(Bytecodes::_fast_fgetfield, bc, rbx); | |
2374 } | |
2375 __ jmp(Done); | |
2376 | |
2377 __ bind(notFloat); | |
2378 #ifdef ASSERT | |
2379 __ cmpl(flags, dtos); | |
2380 __ jcc(Assembler::notEqual, notDouble); | |
2381 #endif | |
2382 // dtos | |
2383 __ movdbl(xmm0, field); | |
2384 __ push(dtos); | |
2385 // Rewrite bytecode to be faster | |
2386 if (!is_static) { | |
2387 patch_bytecode(Bytecodes::_fast_dgetfield, bc, rbx); | |
2388 } | |
2389 #ifdef ASSERT | |
2390 __ jmp(Done); | |
2391 | |
2392 __ bind(notDouble); | |
2393 __ stop("Bad state"); | |
2394 #endif | |
2395 | |
2396 __ bind(Done); | |
2397 // [jk] not needed currently | |
2398 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadLoad | | |
2399 // Assembler::LoadStore)); | |
2400 } | |
2401 | |
2402 | |
2403 void TemplateTable::getfield(int byte_no) { | |
2404 getfield_or_static(byte_no, false); | |
2405 } | |
2406 | |
2407 void TemplateTable::getstatic(int byte_no) { | |
2408 getfield_or_static(byte_no, true); | |
2409 } | |
2410 | |
2411 // The registers cache and index expected to be set before call. | |
2412 // The function may destroy various registers, just not the cache and index registers. | |
2413 void TemplateTable::jvmti_post_field_mod(Register cache, Register index, bool is_static) { | |
2414 transition(vtos, vtos); | |
2415 | |
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2416 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2417 |
2418 if (JvmtiExport::can_post_field_modification()) { | |
2419 // Check to see if a field modification watch has been set before | |
2420 // we take the time to call into the VM. | |
2421 Label L1; | |
2422 assert_different_registers(cache, index, rax); | |
2423 __ mov32(rax, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2424 __ testl(rax, rax); | |
2425 __ jcc(Assembler::zero, L1); | |
2426 | |
2427 __ get_cache_and_index_at_bcp(c_rarg2, rscratch1, 1); | |
2428 | |
2429 if (is_static) { | |
2430 // Life is simple. Null out the object pointer. | |
2431 __ xorl(c_rarg1, c_rarg1); | |
2432 } else { | |
2433 // Life is harder. The stack holds the value on top, followed by | |
2434 // the object. We don't know the size of the value, though; it | |
2435 // could be one or two words depending on its type. As a result, | |
2436 // we must find the type to determine where the object is. | |
2437 __ movl(c_rarg3, Address(c_rarg2, rscratch1, | |
2438 Address::times_8, | |
2439 in_bytes(cp_base_offset + | |
2440 ConstantPoolCacheEntry::flags_offset()))); | |
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2441 __ shrl(c_rarg3, ConstantPoolCacheEntry::tos_state_shift); |
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2442 // Make sure we don't need to mask rcx after the above shift |
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2443 ConstantPoolCacheEntry::verify_tos_state_shift(); |
304 | 2444 __ movptr(c_rarg1, at_tos_p1()); // initially assume a one word jvalue |
0 | 2445 __ cmpl(c_rarg3, ltos); |
304 | 2446 __ cmovptr(Assembler::equal, |
2447 c_rarg1, at_tos_p2()); // ltos (two word jvalue) | |
0 | 2448 __ cmpl(c_rarg3, dtos); |
304 | 2449 __ cmovptr(Assembler::equal, |
2450 c_rarg1, at_tos_p2()); // dtos (two word jvalue) | |
0 | 2451 } |
2452 // cache entry pointer | |
304 | 2453 __ addptr(c_rarg2, in_bytes(cp_base_offset)); |
0 | 2454 __ shll(rscratch1, LogBytesPerWord); |
304 | 2455 __ addptr(c_rarg2, rscratch1); |
0 | 2456 // object (tos) |
304 | 2457 __ mov(c_rarg3, rsp); |
0 | 2458 // c_rarg1: object pointer set up above (NULL if static) |
2459 // c_rarg2: cache entry pointer | |
2460 // c_rarg3: jvalue object on the stack | |
2461 __ call_VM(noreg, | |
2462 CAST_FROM_FN_PTR(address, | |
2463 InterpreterRuntime::post_field_modification), | |
2464 c_rarg1, c_rarg2, c_rarg3); | |
2465 __ get_cache_and_index_at_bcp(cache, index, 1); | |
2466 __ bind(L1); | |
2467 } | |
2468 } | |
2469 | |
2470 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2471 transition(vtos, vtos); | |
2472 | |
2473 const Register cache = rcx; | |
2474 const Register index = rdx; | |
2475 const Register obj = rcx; | |
2476 const Register off = rbx; | |
2477 const Register flags = rax; | |
2478 const Register bc = c_rarg3; | |
2479 | |
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2480 resolve_cache_and_index(byte_no, cache, index, sizeof(u2)); |
0 | 2481 jvmti_post_field_mod(cache, index, is_static); |
2482 load_field_cp_cache_entry(obj, cache, index, off, flags, is_static); | |
2483 | |
2484 // [jk] not needed currently | |
2485 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2486 // Assembler::StoreStore)); | |
2487 | |
2488 Label notVolatile, Done; | |
2489 __ movl(rdx, flags); | |
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2490 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2491 __ andl(rdx, 0x1); |
2492 | |
2493 // field address | |
2494 const Address field(obj, off, Address::times_1); | |
2495 | |
2496 Label notByte, notInt, notShort, notChar, | |
2497 notLong, notFloat, notObj, notDouble; | |
2498 | |
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2499 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
0 | 2500 |
2501 assert(btos == 0, "change code, btos != 0"); | |
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2502 __ andl(flags, ConstantPoolCacheEntry::tos_state_mask); |
0 | 2503 __ jcc(Assembler::notZero, notByte); |
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2504 |
0 | 2505 // btos |
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2506 { |
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2507 __ pop(btos); |
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2508 if (!is_static) pop_and_check_object(obj); |
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2509 __ movb(field, rax); |
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2510 if (!is_static) { |
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2511 patch_bytecode(Bytecodes::_fast_bputfield, bc, rbx, true, byte_no); |
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2512 } |
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2513 __ jmp(Done); |
0 | 2514 } |
2515 | |
2516 __ bind(notByte); | |
2517 __ cmpl(flags, atos); | |
2518 __ jcc(Assembler::notEqual, notObj); | |
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2519 |
0 | 2520 // atos |
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2521 { |
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2522 __ pop(atos); |
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2523 if (!is_static) pop_and_check_object(obj); |
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2524 // Store into the field |
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2525 do_oop_store(_masm, field, rax, _bs->kind(), false); |
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2526 if (!is_static) { |
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2527 patch_bytecode(Bytecodes::_fast_aputfield, bc, rbx, true, byte_no); |
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2528 } |
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2529 __ jmp(Done); |
0 | 2530 } |
2531 | |
2532 __ bind(notObj); | |
2533 __ cmpl(flags, itos); | |
2534 __ jcc(Assembler::notEqual, notInt); | |
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2535 |
0 | 2536 // itos |
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2537 { |
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2538 __ pop(itos); |
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2539 if (!is_static) pop_and_check_object(obj); |
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2540 __ movl(field, rax); |
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2541 if (!is_static) { |
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2542 patch_bytecode(Bytecodes::_fast_iputfield, bc, rbx, true, byte_no); |
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2543 } |
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2544 __ jmp(Done); |
0 | 2545 } |
2546 | |
2547 __ bind(notInt); | |
2548 __ cmpl(flags, ctos); | |
2549 __ jcc(Assembler::notEqual, notChar); | |
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2550 |
0 | 2551 // ctos |
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2552 { |
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2553 __ pop(ctos); |
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2554 if (!is_static) pop_and_check_object(obj); |
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2555 __ movw(field, rax); |
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2556 if (!is_static) { |
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2557 patch_bytecode(Bytecodes::_fast_cputfield, bc, rbx, true, byte_no); |
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2558 } |
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2559 __ jmp(Done); |
0 | 2560 } |
2561 | |
2562 __ bind(notChar); | |
2563 __ cmpl(flags, stos); | |
2564 __ jcc(Assembler::notEqual, notShort); | |
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2565 |
0 | 2566 // stos |
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2567 { |
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2568 __ pop(stos); |
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2569 if (!is_static) pop_and_check_object(obj); |
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2570 __ movw(field, rax); |
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2571 if (!is_static) { |
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2572 patch_bytecode(Bytecodes::_fast_sputfield, bc, rbx, true, byte_no); |
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2573 } |
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2574 __ jmp(Done); |
0 | 2575 } |
2576 | |
2577 __ bind(notShort); | |
2578 __ cmpl(flags, ltos); | |
2579 __ jcc(Assembler::notEqual, notLong); | |
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2580 |
0 | 2581 // ltos |
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2582 { |
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2583 __ pop(ltos); |
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2584 if (!is_static) pop_and_check_object(obj); |
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2585 __ movq(field, rax); |
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2586 if (!is_static) { |
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2587 patch_bytecode(Bytecodes::_fast_lputfield, bc, rbx, true, byte_no); |
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2588 } |
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2589 __ jmp(Done); |
0 | 2590 } |
2591 | |
2592 __ bind(notLong); | |
2593 __ cmpl(flags, ftos); | |
2594 __ jcc(Assembler::notEqual, notFloat); | |
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2595 |
0 | 2596 // ftos |
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2597 { |
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2598 __ pop(ftos); |
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2599 if (!is_static) pop_and_check_object(obj); |
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2600 __ movflt(field, xmm0); |
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2601 if (!is_static) { |
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2602 patch_bytecode(Bytecodes::_fast_fputfield, bc, rbx, true, byte_no); |
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2603 } |
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2604 __ jmp(Done); |
0 | 2605 } |
2606 | |
2607 __ bind(notFloat); | |
2608 #ifdef ASSERT | |
2609 __ cmpl(flags, dtos); | |
2610 __ jcc(Assembler::notEqual, notDouble); | |
2611 #endif | |
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2612 |
0 | 2613 // dtos |
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2614 { |
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2615 __ pop(dtos); |
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2616 if (!is_static) pop_and_check_object(obj); |
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2617 __ movdbl(field, xmm0); |
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2618 if (!is_static) { |
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2619 patch_bytecode(Bytecodes::_fast_dputfield, bc, rbx, true, byte_no); |
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2620 } |
0 | 2621 } |
2622 | |
2623 #ifdef ASSERT | |
2624 __ jmp(Done); | |
2625 | |
2626 __ bind(notDouble); | |
2627 __ stop("Bad state"); | |
2628 #endif | |
2629 | |
2630 __ bind(Done); | |
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2631 |
0 | 2632 // Check for volatile store |
2633 __ testl(rdx, rdx); | |
2634 __ jcc(Assembler::zero, notVolatile); | |
2635 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2636 Assembler::StoreStore)); | |
2637 __ bind(notVolatile); | |
2638 } | |
2639 | |
2640 void TemplateTable::putfield(int byte_no) { | |
2641 putfield_or_static(byte_no, false); | |
2642 } | |
2643 | |
2644 void TemplateTable::putstatic(int byte_no) { | |
2645 putfield_or_static(byte_no, true); | |
2646 } | |
2647 | |
2648 void TemplateTable::jvmti_post_fast_field_mod() { | |
2649 if (JvmtiExport::can_post_field_modification()) { | |
2650 // Check to see if a field modification watch has been set before | |
2651 // we take the time to call into the VM. | |
2652 Label L2; | |
2653 __ mov32(c_rarg3, ExternalAddress((address)JvmtiExport::get_field_modification_count_addr())); | |
2654 __ testl(c_rarg3, c_rarg3); | |
2655 __ jcc(Assembler::zero, L2); | |
2656 __ pop_ptr(rbx); // copy the object pointer from tos | |
2657 __ verify_oop(rbx); | |
2658 __ push_ptr(rbx); // put the object pointer back on tos | |
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2659 // Save tos values before call_VM() clobbers them. Since we have |
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2660 // to do it for every data type, we use the saved values as the |
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2661 // jvalue object. |
0 | 2662 switch (bytecode()) { // load values into the jvalue object |
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2663 case Bytecodes::_fast_aputfield: __ push_ptr(rax); break; |
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2664 case Bytecodes::_fast_bputfield: // fall through |
0 | 2665 case Bytecodes::_fast_sputfield: // fall through |
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2666 case Bytecodes::_fast_cputfield: // fall through |
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2667 case Bytecodes::_fast_iputfield: __ push_i(rax); break; |
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2668 case Bytecodes::_fast_dputfield: __ push_d(); break; |
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2669 case Bytecodes::_fast_fputfield: __ push_f(); break; |
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2670 case Bytecodes::_fast_lputfield: __ push_l(rax); break; |
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2671 |
0 | 2672 default: |
2673 ShouldNotReachHere(); | |
2674 } | |
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2675 __ mov(c_rarg3, rsp); // points to jvalue on the stack |
0 | 2676 // access constant pool cache entry |
2677 __ get_cache_entry_pointer_at_bcp(c_rarg2, rax, 1); | |
2678 __ verify_oop(rbx); | |
2679 // rbx: object pointer copied above | |
2680 // c_rarg2: cache entry pointer | |
2681 // c_rarg3: jvalue object on the stack | |
2682 __ call_VM(noreg, | |
2683 CAST_FROM_FN_PTR(address, | |
2684 InterpreterRuntime::post_field_modification), | |
2685 rbx, c_rarg2, c_rarg3); | |
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2686 |
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2687 switch (bytecode()) { // restore tos values |
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2688 case Bytecodes::_fast_aputfield: __ pop_ptr(rax); break; |
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2689 case Bytecodes::_fast_bputfield: // fall through |
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2690 case Bytecodes::_fast_sputfield: // fall through |
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2691 case Bytecodes::_fast_cputfield: // fall through |
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2692 case Bytecodes::_fast_iputfield: __ pop_i(rax); break; |
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2693 case Bytecodes::_fast_dputfield: __ pop_d(); break; |
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2694 case Bytecodes::_fast_fputfield: __ pop_f(); break; |
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2695 case Bytecodes::_fast_lputfield: __ pop_l(rax); break; |
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2696 } |
0 | 2697 __ bind(L2); |
2698 } | |
2699 } | |
2700 | |
2701 void TemplateTable::fast_storefield(TosState state) { | |
2702 transition(state, vtos); | |
2703 | |
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2704 ByteSize base = ConstantPoolCache::base_offset(); |
0 | 2705 |
2706 jvmti_post_fast_field_mod(); | |
2707 | |
2708 // access constant pool cache | |
2709 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2710 | |
2711 // test for volatile with rdx | |
2712 __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
2713 in_bytes(base + | |
2714 ConstantPoolCacheEntry::flags_offset()))); | |
2715 | |
2716 // replace index with field offset from cache entry | |
304 | 2717 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
2718 in_bytes(base + ConstantPoolCacheEntry::f2_offset()))); | |
0 | 2719 |
2720 // [jk] not needed currently | |
2721 // volatile_barrier(Assembler::Membar_mask_bits(Assembler::LoadStore | | |
2722 // Assembler::StoreStore)); | |
2723 | |
2724 Label notVolatile; | |
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2725 __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2726 __ andl(rdx, 0x1); |
2727 | |
2728 // Get object from stack | |
2729 pop_and_check_object(rcx); | |
2730 | |
2731 // field address | |
2732 const Address field(rcx, rbx, Address::times_1); | |
2733 | |
2734 // access field | |
2735 switch (bytecode()) { | |
2736 case Bytecodes::_fast_aputfield: | |
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2737 do_oop_store(_masm, field, rax, _bs->kind(), false); |
0 | 2738 break; |
2739 case Bytecodes::_fast_lputfield: | |
2740 __ movq(field, rax); | |
2741 break; | |
2742 case Bytecodes::_fast_iputfield: | |
2743 __ movl(field, rax); | |
2744 break; | |
2745 case Bytecodes::_fast_bputfield: | |
2746 __ movb(field, rax); | |
2747 break; | |
2748 case Bytecodes::_fast_sputfield: | |
2749 // fall through | |
2750 case Bytecodes::_fast_cputfield: | |
2751 __ movw(field, rax); | |
2752 break; | |
2753 case Bytecodes::_fast_fputfield: | |
2754 __ movflt(field, xmm0); | |
2755 break; | |
2756 case Bytecodes::_fast_dputfield: | |
2757 __ movdbl(field, xmm0); | |
2758 break; | |
2759 default: | |
2760 ShouldNotReachHere(); | |
2761 } | |
2762 | |
2763 // Check for volatile store | |
2764 __ testl(rdx, rdx); | |
2765 __ jcc(Assembler::zero, notVolatile); | |
2766 volatile_barrier(Assembler::Membar_mask_bits(Assembler::StoreLoad | | |
2767 Assembler::StoreStore)); | |
2768 __ bind(notVolatile); | |
2769 } | |
2770 | |
2771 | |
2772 void TemplateTable::fast_accessfield(TosState state) { | |
2773 transition(atos, state); | |
2774 | |
2775 // Do the JVMTI work here to avoid disturbing the register state below | |
2776 if (JvmtiExport::can_post_field_access()) { | |
2777 // Check to see if a field access watch has been set before we | |
2778 // take the time to call into the VM. | |
2779 Label L1; | |
2780 __ mov32(rcx, ExternalAddress((address) JvmtiExport::get_field_access_count_addr())); | |
2781 __ testl(rcx, rcx); | |
2782 __ jcc(Assembler::zero, L1); | |
2783 // access constant pool cache entry | |
2784 __ get_cache_entry_pointer_at_bcp(c_rarg2, rcx, 1); | |
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2785 __ verify_oop(rax); |
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2786 __ push_ptr(rax); // save object pointer before call_VM() clobbers it |
304 | 2787 __ mov(c_rarg1, rax); |
0 | 2788 // c_rarg1: object pointer copied above |
2789 // c_rarg2: cache entry pointer | |
2790 __ call_VM(noreg, | |
2791 CAST_FROM_FN_PTR(address, | |
2792 InterpreterRuntime::post_field_access), | |
2793 c_rarg1, c_rarg2); | |
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2794 __ pop_ptr(rax); // restore object pointer |
0 | 2795 __ bind(L1); |
2796 } | |
2797 | |
2798 // access constant pool cache | |
2799 __ get_cache_and_index_at_bcp(rcx, rbx, 1); | |
2800 // replace index with field offset from cache entry | |
2801 // [jk] not needed currently | |
2802 // if (os::is_MP()) { | |
2803 // __ movl(rdx, Address(rcx, rbx, Address::times_8, | |
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2804 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2805 // ConstantPoolCacheEntry::flags_offset()))); |
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2806 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2807 // __ andl(rdx, 0x1); |
2808 // } | |
304 | 2809 __ movptr(rbx, Address(rcx, rbx, Address::times_8, |
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2810 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2811 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2812 |
2813 // rax: object | |
2814 __ verify_oop(rax); | |
2815 __ null_check(rax); | |
2816 Address field(rax, rbx, Address::times_1); | |
2817 | |
2818 // access field | |
2819 switch (bytecode()) { | |
2820 case Bytecodes::_fast_agetfield: | |
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2821 __ load_heap_oop(rax, field); |
0 | 2822 __ verify_oop(rax); |
2823 break; | |
2824 case Bytecodes::_fast_lgetfield: | |
2825 __ movq(rax, field); | |
2826 break; | |
2827 case Bytecodes::_fast_igetfield: | |
2828 __ movl(rax, field); | |
2829 break; | |
2830 case Bytecodes::_fast_bgetfield: | |
2831 __ movsbl(rax, field); | |
2832 break; | |
2833 case Bytecodes::_fast_sgetfield: | |
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2834 __ load_signed_short(rax, field); |
0 | 2835 break; |
2836 case Bytecodes::_fast_cgetfield: | |
622
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2837 __ load_unsigned_short(rax, field); |
0 | 2838 break; |
2839 case Bytecodes::_fast_fgetfield: | |
2840 __ movflt(xmm0, field); | |
2841 break; | |
2842 case Bytecodes::_fast_dgetfield: | |
2843 __ movdbl(xmm0, field); | |
2844 break; | |
2845 default: | |
2846 ShouldNotReachHere(); | |
2847 } | |
2848 // [jk] not needed currently | |
2849 // if (os::is_MP()) { | |
2850 // Label notVolatile; | |
2851 // __ testl(rdx, rdx); | |
2852 // __ jcc(Assembler::zero, notVolatile); | |
2853 // __ membar(Assembler::LoadLoad); | |
2854 // __ bind(notVolatile); | |
2855 //}; | |
2856 } | |
2857 | |
2858 void TemplateTable::fast_xaccess(TosState state) { | |
2859 transition(vtos, state); | |
2860 | |
2861 // get receiver | |
304 | 2862 __ movptr(rax, aaddress(0)); |
0 | 2863 // access constant pool cache |
2864 __ get_cache_and_index_at_bcp(rcx, rdx, 2); | |
304 | 2865 __ movptr(rbx, |
2866 Address(rcx, rdx, Address::times_8, | |
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2867 in_bytes(ConstantPoolCache::base_offset() + |
304 | 2868 ConstantPoolCacheEntry::f2_offset()))); |
0 | 2869 // make sure exception is reported in correct bcp range (getfield is |
2870 // next instruction) | |
304 | 2871 __ increment(r13); |
0 | 2872 __ null_check(rax); |
2873 switch (state) { | |
2874 case itos: | |
2875 __ movl(rax, Address(rax, rbx, Address::times_1)); | |
2876 break; | |
2877 case atos: | |
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2878 __ load_heap_oop(rax, Address(rax, rbx, Address::times_1)); |
0 | 2879 __ verify_oop(rax); |
2880 break; | |
2881 case ftos: | |
2882 __ movflt(xmm0, Address(rax, rbx, Address::times_1)); | |
2883 break; | |
2884 default: | |
2885 ShouldNotReachHere(); | |
2886 } | |
2887 | |
2888 // [jk] not needed currently | |
2889 // if (os::is_MP()) { | |
2890 // Label notVolatile; | |
2891 // __ movl(rdx, Address(rcx, rdx, Address::times_8, | |
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2892 // in_bytes(ConstantPoolCache::base_offset() + |
0 | 2893 // ConstantPoolCacheEntry::flags_offset()))); |
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2894 // __ shrl(rdx, ConstantPoolCacheEntry::is_volatile_shift); |
0 | 2895 // __ testl(rdx, 0x1); |
2896 // __ jcc(Assembler::zero, notVolatile); | |
2897 // __ membar(Assembler::LoadLoad); | |
2898 // __ bind(notVolatile); | |
2899 // } | |
2900 | |
304 | 2901 __ decrement(r13); |
0 | 2902 } |
2903 | |
2904 | |
2905 | |
2906 //----------------------------------------------------------------------------- | |
2907 // Calls | |
2908 | |
2909 void TemplateTable::count_calls(Register method, Register temp) { | |
2910 // implemented elsewhere | |
2911 ShouldNotReachHere(); | |
2912 } | |
2913 | |
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2914 void TemplateTable::prepare_invoke(int byte_no, |
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2915 Register method, // linked method (or i-klass) |
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2916 Register index, // itable index, MethodType, etc. |
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2917 Register recv, // if caller wants to see it |
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2918 Register flags // if caller wants to test it |
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2919 ) { |
0 | 2920 // determine flags |
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2921 const Bytecodes::Code code = bytecode(); |
0 | 2922 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
1108 | 2923 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2924 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
0 | 2925 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
2926 const bool is_invokespecial = code == Bytecodes::_invokespecial; | |
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2927 const bool load_receiver = (recv != noreg); |
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2928 const bool save_flags = (flags != noreg); |
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2929 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2930 assert(save_flags == (is_invokeinterface || is_invokevirtual), "need flags for vfinal"); |
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2931 assert(flags == noreg || flags == rdx, ""); |
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2932 assert(recv == noreg || recv == rcx, ""); |
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2933 |
0 | 2934 // setup registers & access constant pool cache |
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2935 if (recv == noreg) recv = rcx; |
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2936 if (flags == noreg) flags = rdx; |
0 | 2937 assert_different_registers(method, index, recv, flags); |
2938 | |
2939 // save 'interpreter return address' | |
2940 __ save_bcp(); | |
2941 | |
1565 | 2942 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
0 | 2943 |
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2944 // maybe push appendix to arguments (just before return address) |
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2945 if (is_invokedynamic || is_invokehandle) { |
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2946 Label L_no_push; |
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2947 __ testl(flags, (1 << ConstantPoolCacheEntry::has_appendix_shift)); |
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2948 __ jcc(Assembler::zero, L_no_push); |
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2949 // Push the appendix as a trailing parameter. |
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2950 // This must be done before we get the receiver, |
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2951 // since the parameter_size includes it. |
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2952 __ push(rbx); |
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2953 __ mov(rbx, index); |
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2954 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2955 __ load_resolved_reference_at_index(index, rbx); |
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2956 __ pop(rbx); |
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2957 __ push(index); // push appendix (MethodType, CallSite, etc.) |
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2958 __ bind(L_no_push); |
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2959 } |
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2960 |
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2961 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2962 // Note: no return address pushed yet |
0 | 2963 if (load_receiver) { |
2964 __ movl(recv, flags); | |
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2965 __ andl(recv, ConstantPoolCacheEntry::parameter_size_mask); |
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2966 const int no_return_pc_pushed_yet = -1; // argument slot correction before we push return address |
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2967 const int receiver_is_at_end = -1; // back off one slot to get receiver |
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2968 Address recv_addr = __ argument_address(recv, no_return_pc_pushed_yet + receiver_is_at_end); |
1304 | 2969 __ movptr(recv, recv_addr); |
2970 __ verify_oop(recv); | |
0 | 2971 } |
2972 | |
2973 if (save_flags) { | |
2974 __ movl(r13, flags); | |
2975 } | |
2976 | |
2977 // compute return type | |
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2978 __ shrl(flags, ConstantPoolCacheEntry::tos_state_shift); |
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2979 // Make sure we don't need to mask flags after the above shift |
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2980 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2981 // load return address |
2982 { | |
13010
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2983 const address table_addr = (address) Interpreter::invoke_return_entry_table_for(code); |
1108 | 2984 ExternalAddress table(table_addr); |
2985 __ lea(rscratch1, table); | |
2986 __ movptr(flags, Address(rscratch1, flags, Address::times_ptr)); | |
0 | 2987 } |
2988 | |
2989 // push return address | |
304 | 2990 __ push(flags); |
0 | 2991 |
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2992 // Restore flags value from the constant pool cache, and restore rsi |
0 | 2993 // for later null checks. r13 is the bytecode pointer |
2994 if (save_flags) { | |
2995 __ movl(flags, r13); | |
2996 __ restore_bcp(); | |
2997 } | |
2998 } | |
2999 | |
3000 | |
3001 void TemplateTable::invokevirtual_helper(Register index, | |
3002 Register recv, | |
3003 Register flags) { | |
1783 | 3004 // Uses temporary registers rax, rdx |
3005 assert_different_registers(index, recv, rax, rdx); | |
6266
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3006 assert(index == rbx, ""); |
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3007 assert(recv == rcx, ""); |
0 | 3008 |
3009 // Test for an invoke of a final method | |
3010 Label notFinal; | |
3011 __ movl(rax, flags); | |
6266
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3012 __ andl(rax, (1 << ConstantPoolCacheEntry::is_vfinal_shift)); |
0 | 3013 __ jcc(Assembler::zero, notFinal); |
3014 | |
3015 const Register method = index; // method must be rbx | |
3016 assert(method == rbx, | |
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3017 "Method* must be rbx for interpreter calling convention"); |
0 | 3018 |
3019 // do the call - the index is actually the method to call | |
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3020 // that is, f2 is a vtable index if !is_vfinal, else f2 is a Method* |
0 | 3021 |
3022 // It's final, need a null check here! | |
3023 __ null_check(recv); | |
3024 | |
3025 // profile this call | |
3026 __ profile_final_call(rax); | |
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3027 __ profile_arguments_type(rax, method, r13, true); |
0 | 3028 |
3029 __ jump_from_interpreted(method, rax); | |
3030 | |
3031 __ bind(notFinal); | |
3032 | |
3033 // get receiver klass | |
3034 __ null_check(recv, oopDesc::klass_offset_in_bytes()); | |
113
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3035 __ load_klass(rax, recv); |
0 | 3036 |
3037 // profile this call | |
3038 __ profile_virtual_call(rax, r14, rdx); | |
3039 | |
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3040 // get target Method* & entry point |
6266
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3041 __ lookup_virtual_method(rax, index, method); |
9760
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3042 #ifdef GRAAL |
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3043 // r14: MethodDataPointer (r14 is callee saved) |
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3044 __ profile_called_method(method, r14, r13); |
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3045 #endif |
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3046 __ profile_arguments_type(rdx, method, r13, true); |
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Doug Simon <doug.simon@oracle.com>
diff
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|
3047 |
0 | 3048 __ jump_from_interpreted(method, rdx); |
3049 } | |
3050 | |
3051 | |
3052 void TemplateTable::invokevirtual(int byte_no) { | |
3053 transition(vtos, vtos); | |
1565 | 3054 assert(byte_no == f2_byte, "use this argument"); |
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3055 prepare_invoke(byte_no, |
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3056 rbx, // method or vtable index |
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3057 noreg, // unused itable index |
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3058 rcx, rdx); // recv, flags |
0 | 3059 |
3060 // rbx: index | |
3061 // rcx: receiver | |
3062 // rdx: flags | |
3063 | |
3064 invokevirtual_helper(rbx, rcx, rdx); | |
3065 } | |
3066 | |
3067 | |
3068 void TemplateTable::invokespecial(int byte_no) { | |
3069 transition(vtos, vtos); | |
1565 | 3070 assert(byte_no == f1_byte, "use this argument"); |
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3071 prepare_invoke(byte_no, rbx, noreg, // get f1 Method* |
6266
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3072 rcx); // get receiver also for null check |
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3073 __ verify_oop(rcx); |
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3074 __ null_check(rcx); |
0 | 3075 // do the call |
3076 __ profile_call(rax); | |
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|
3077 __ profile_arguments_type(rax, rbx, r13, false); |
0 | 3078 __ jump_from_interpreted(rbx, rax); |
3079 } | |
3080 | |
3081 | |
3082 void TemplateTable::invokestatic(int byte_no) { | |
3083 transition(vtos, vtos); | |
1565 | 3084 assert(byte_no == f1_byte, "use this argument"); |
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3085 prepare_invoke(byte_no, rbx); // get f1 Method* |
0 | 3086 // do the call |
3087 __ profile_call(rax); | |
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|
3088 __ profile_arguments_type(rax, rbx, r13, false); |
0 | 3089 __ jump_from_interpreted(rbx, rax); |
3090 } | |
3091 | |
3092 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3093 transition(vtos, vtos); | |
1565 | 3094 assert(byte_no == f2_byte, "use this argument"); |
0 | 3095 __ stop("fast_invokevfinal not used on amd64"); |
3096 } | |
3097 | |
3098 void TemplateTable::invokeinterface(int byte_no) { | |
3099 transition(vtos, vtos); | |
1565 | 3100 assert(byte_no == f1_byte, "use this argument"); |
6725
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3101 prepare_invoke(byte_no, rax, rbx, // get f1 Klass*, f2 itable index |
6266
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3102 rcx, rdx); // recv, flags |
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3103 |
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3104 // rax: interface klass (from f1) |
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3105 // rbx: itable index (from f2) |
0 | 3106 // rcx: receiver |
3107 // rdx: flags | |
3108 | |
3109 // Special case of invokeinterface called for virtual method of | |
3110 // java.lang.Object. See cpCacheOop.cpp for details. | |
3111 // This code isn't produced by javac, but could be produced by | |
3112 // another compliant java compiler. | |
3113 Label notMethod; | |
3114 __ movl(r14, rdx); | |
6266
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|
3115 __ andl(r14, (1 << ConstantPoolCacheEntry::is_forced_virtual_shift)); |
0 | 3116 __ jcc(Assembler::zero, notMethod); |
3117 | |
3118 invokevirtual_helper(rbx, rcx, rdx); | |
3119 __ bind(notMethod); | |
3120 | |
3121 // Get receiver klass into rdx - also a null check | |
6266
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3122 __ restore_locals(); // restore r14 |
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3123 __ null_check(rcx, oopDesc::klass_offset_in_bytes()); |
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|
3124 __ load_klass(rdx, rcx); |
0 | 3125 |
3126 // profile this call | |
3127 __ profile_virtual_call(rdx, r13, r14); | |
3128 | |
623
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|
3129 Label no_such_interface, no_such_method; |
9adddb8c0fc8
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|
3130 |
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|
3131 __ lookup_interface_method(// inputs: rec. class, interface, itable index |
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|
3132 rdx, rax, rbx, |
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|
3133 // outputs: method, scan temp. reg |
9760
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Christian Haeubl <haeubl@ssw.jku.at>
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|
3134 rbx, r14, |
623
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|
3135 no_such_interface); |
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|
3136 |
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3137 // rbx: Method* to call |
623
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|
3138 // rcx: receiver |
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|
3139 // Check for abstract method error |
9adddb8c0fc8
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|
3140 // Note: This should be done more efficiently via a throw_abstract_method_error |
9adddb8c0fc8
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|
3141 // interpreter entry point and a conditional jump to it in case of a null |
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|
3142 // method. |
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|
3143 __ testptr(rbx, rbx); |
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
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|
3144 __ jcc(Assembler::zero, no_such_method); |
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|
3145 |
13109
58dfd753ada8
fixed regression from recent hsx merge that prevented TypeProfileLevel from being enabled
Doug Simon <doug.simon@oracle.com>
parents:
13086
diff
changeset
|
3146 #ifdef GRAAL |
58dfd753ada8
fixed regression from recent hsx merge that prevented TypeProfileLevel from being enabled
Doug Simon <doug.simon@oracle.com>
parents:
13086
diff
changeset
|
3147 // r13: MethodDataPointer (r13 is callee saved) |
58dfd753ada8
fixed regression from recent hsx merge that prevented TypeProfileLevel from being enabled
Doug Simon <doug.simon@oracle.com>
parents:
13086
diff
changeset
|
3148 __ profile_called_method(rbx, r13, r14); |
58dfd753ada8
fixed regression from recent hsx merge that prevented TypeProfileLevel from being enabled
Doug Simon <doug.simon@oracle.com>
parents:
13086
diff
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|
3149 #endif |
12875
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3150 __ profile_arguments_type(rdx, rbx, r13, true); |
d13d7aba8c12
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|
3151 |
623
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|
3152 // do the call |
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|
3153 // rcx: receiver |
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3154 // rbx,: Method* |
623
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|
3155 __ jump_from_interpreted(rbx, rdx); |
9adddb8c0fc8
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|
3156 __ should_not_reach_here(); |
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|
3157 |
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|
3158 // exception handling code follows... |
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|
3159 // note: must restore interpreter registers to canonical |
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|
3160 // state for exception handling to work correctly! |
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|
3161 |
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|
3162 __ bind(no_such_method); |
0 | 3163 // throw exception |
623
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|
3164 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
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|
3165 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
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|
3166 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
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|
3167 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
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|
3168 // the call_VM checks for exception, so we should never return here. |
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|
3169 __ should_not_reach_here(); |
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|
3170 |
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|
3171 __ bind(no_such_interface); |
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|
3172 // throw exception |
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|
3173 __ pop(rbx); // pop return address (pushed by prepare_invoke) |
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|
3174 __ restore_bcp(); // r13 must be correct for exception handler (was destroyed) |
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|
3175 __ restore_locals(); // make sure locals pointer is correct as well (was destroyed) |
0 | 3176 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
3177 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
3178 // the call_VM checks for exception, so we should never return here. | |
3179 __ should_not_reach_here(); | |
3180 } | |
3181 | |
6266
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|
3182 |
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|
3183 void TemplateTable::invokehandle(int byte_no) { |
1d7922586cf6
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|
3184 transition(vtos, vtos); |
6725
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|
3185 assert(byte_no == f1_byte, "use this argument"); |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
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6740
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changeset
|
3186 const Register rbx_method = rbx; |
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7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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|
3187 const Register rax_mtype = rax; |
6266
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|
3188 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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|
3189 const Register rdx_flags = rdx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3190 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3191 if (!EnableInvokeDynamic) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3192 // rewriter does not generate this bytecode |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3193 __ should_not_reach_here(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3194 return; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3195 } |
1d7922586cf6
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diff
changeset
|
3196 |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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6740
diff
changeset
|
3197 prepare_invoke(byte_no, rbx_method, rax_mtype, rcx_recv); |
6740
75f33eecc1b3
7196681: NPG: Some JSR 292 tests crash in Windows exception handler
coleenp
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6725
diff
changeset
|
3198 __ 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
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|
3199 __ verify_oop(rcx_recv); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
3200 __ null_check(rcx_recv); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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|
3201 |
6822
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7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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diff
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|
3202 // rax: MethodType object (from cpool->resolved_references[f1], if necessary) |
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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diff
changeset
|
3203 // rbx: MH.invokeExact_MT method (from f2) |
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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diff
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|
3204 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3205 // Note: rax_mtype is already pushed (if necessary) by prepare_invoke |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
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|
3206 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3207 // FIXME: profile the LambdaForm also |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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5995
diff
changeset
|
3208 __ profile_final_call(rax); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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10108
diff
changeset
|
3209 __ profile_arguments_type(rdx, rbx_method, r13, true); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3210 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3211 __ jump_from_interpreted(rbx_method, rdx); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3212 } |
1d7922586cf6
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diff
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|
3213 |
1d7922586cf6
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diff
changeset
|
3214 |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
changeset
|
3215 void TemplateTable::invokedynamic(int byte_no) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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|
3216 transition(vtos, vtos); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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3217 assert(byte_no == f1_byte, "use this argument"); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
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|
3218 |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
changeset
|
3219 if (!EnableInvokeDynamic) { |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
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|
3220 // We should not encounter this bytecode if !EnableInvokeDynamic. |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
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|
3221 // The verifier will stop it. However, if we get past the verifier, |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
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|
3222 // 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
|
3223 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
changeset
|
3224 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3225 // 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
|
3226 __ should_not_reach_here(); |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3227 return; |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
changeset
|
3228 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
changeset
|
3229 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3230 const Register rbx_method = rbx; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
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|
3231 const Register rax_callsite = rax; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3232 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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diff
changeset
|
3233 prepare_invoke(byte_no, rbx_method, rax_callsite); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
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|
3234 |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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diff
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|
3235 // rax: CallSite object (from cpool->resolved_references[f1]) |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
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diff
changeset
|
3236 // rbx: MH.linkToCallSite method (from f2) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3237 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3238 // Note: rax_callsite is already pushed by prepare_invoke |
1846 | 3239 |
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3240 // %%% 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
|
3241 // profile this call |
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
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3275
diff
changeset
|
3242 __ profile_call(r13); |
12875
d13d7aba8c12
8023657: New type profiling points: arguments to call
roland
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10108
diff
changeset
|
3243 __ profile_arguments_type(rdx, rbx_method, r13, false); |
3279
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
twisti
parents:
3275
diff
changeset
|
3244 |
08ccee2c4dbf
6993078: JSR 292 too many pushes: Lesp points into register window
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3275
diff
changeset
|
3245 __ verify_oop(rax_callsite); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3246 |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
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5995
diff
changeset
|
3247 __ jump_from_interpreted(rbx_method, rdx); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
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623
diff
changeset
|
3248 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
623
diff
changeset
|
3249 |
623
9adddb8c0fc8
6812831: factor duplicated assembly code for megamorphic invokeinterface (for 6655638)
jrose
parents:
622
diff
changeset
|
3250 |
0 | 3251 //----------------------------------------------------------------------------- |
3252 // Allocation | |
3253 | |
3254 void TemplateTable::_new() { | |
3255 transition(vtos, atos); | |
3256 __ get_unsigned_2_byte_index_at_bcp(rdx, 1); | |
3257 Label slow_case; | |
3258 Label done; | |
3259 Label initialize_header; | |
3260 Label initialize_object; // including clearing the fields | |
3261 Label allocate_shared; | |
3262 | |
3263 __ get_cpool_and_tags(rsi, rax); | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3264 // Make sure the class we're about to instantiate has been resolved. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3265 // 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
|
3266 // 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
|
3267 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 3268 __ cmpb(Address(rax, rdx, Address::times_1, tags_offset), |
3269 JVM_CONSTANT_Class); | |
3270 __ jcc(Assembler::notEqual, slow_case); | |
3271 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3272 // get InstanceKlass |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3273 __ 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
|
3274 Address::times_8, sizeof(ConstantPool))); |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1602
diff
changeset
|
3275 |
0 | 3276 // make sure klass is initialized & doesn't have finalizer |
3277 // make sure klass is fully initialized | |
4739
52b5d32fbfaf
7117052: instanceKlass::_init_state can be u1 type
coleenp
parents:
3852
diff
changeset
|
3278 __ cmpb(Address(rsi, |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3279 InstanceKlass::init_state_offset()), |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3280 InstanceKlass::fully_initialized); |
0 | 3281 __ jcc(Assembler::notEqual, slow_case); |
3282 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3283 // get instance_size in InstanceKlass (scaled to a count of bytes) |
0 | 3284 __ movl(rdx, |
3285 Address(rsi, | |
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3852
diff
changeset
|
3286 Klass::layout_helper_offset())); |
0 | 3287 // test to see if it has a finalizer or is malformed in some way |
3288 __ testl(rdx, Klass::_lh_instance_slow_path_bit); | |
3289 __ jcc(Assembler::notZero, slow_case); | |
3290 | |
3291 // Allocate the instance | |
3292 // 1) Try to allocate in the TLAB | |
3293 // 2) if fail and the object is large allocate in the shared Eden | |
3294 // 3) if the above fails (or is not applicable), go to a slow case | |
3295 // (creates a new TLAB, etc.) | |
3296 | |
3297 const bool allow_shared_alloc = | |
3298 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
3299 | |
3300 if (UseTLAB) { | |
304 | 3301 __ movptr(rax, Address(r15_thread, in_bytes(JavaThread::tlab_top_offset()))); |
3302 __ lea(rbx, Address(rax, rdx, Address::times_1)); | |
3303 __ cmpptr(rbx, Address(r15_thread, in_bytes(JavaThread::tlab_end_offset()))); | |
0 | 3304 __ jcc(Assembler::above, allow_shared_alloc ? allocate_shared : slow_case); |
304 | 3305 __ movptr(Address(r15_thread, in_bytes(JavaThread::tlab_top_offset())), rbx); |
0 | 3306 if (ZeroTLAB) { |
3307 // the fields have been already cleared | |
3308 __ jmp(initialize_header); | |
3309 } else { | |
3310 // initialize both the header and fields | |
3311 __ jmp(initialize_object); | |
3312 } | |
3313 } | |
3314 | |
3315 // Allocation in the shared Eden, if allowed. | |
3316 // | |
3317 // rdx: instance size in bytes | |
3318 if (allow_shared_alloc) { | |
3319 __ bind(allocate_shared); | |
3320 | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
3321 ExternalAddress top((address)Universe::heap()->top_addr()); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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113
diff
changeset
|
3322 ExternalAddress end((address)Universe::heap()->end_addr()); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
113
diff
changeset
|
3323 |
0 | 3324 const Register RtopAddr = rscratch1; |
3325 const Register RendAddr = rscratch2; | |
3326 | |
3327 __ lea(RtopAddr, top); | |
3328 __ lea(RendAddr, end); | |
304 | 3329 __ movptr(rax, Address(RtopAddr, 0)); |
0 | 3330 |
3331 // For retries rax gets set by cmpxchgq | |
3332 Label retry; | |
3333 __ bind(retry); | |
304 | 3334 __ lea(rbx, Address(rax, rdx, Address::times_1)); |
3335 __ cmpptr(rbx, Address(RendAddr, 0)); | |
0 | 3336 __ jcc(Assembler::above, slow_case); |
3337 | |
3338 // Compare rax with the top addr, and if still equal, store the new | |
3339 // top addr in rbx at the address of the top addr pointer. Sets ZF if was | |
3340 // equal, and clears it otherwise. Use lock prefix for atomicity on MPs. | |
3341 // | |
3342 // rax: object begin | |
3343 // rbx: object end | |
3344 // rdx: instance size in bytes | |
3345 if (os::is_MP()) { | |
3346 __ lock(); | |
3347 } | |
304 | 3348 __ cmpxchgptr(rbx, Address(RtopAddr, 0)); |
0 | 3349 |
3350 // if someone beat us on the allocation, try again, otherwise continue | |
3351 __ 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
|
3352 |
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
phh
parents:
1976
diff
changeset
|
3353 __ incr_allocated_bytes(r15_thread, rdx, 0); |
0 | 3354 } |
3355 | |
3356 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
3357 // The object is initialized before the header. If the object size is | |
3358 // zero, go directly to the header initialization. | |
3359 __ bind(initialize_object); | |
3360 __ decrementl(rdx, sizeof(oopDesc)); | |
3361 __ jcc(Assembler::zero, initialize_header); | |
3362 | |
3363 // Initialize object fields | |
3364 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) | |
3365 __ shrl(rdx, LogBytesPerLong); // divide by oopSize to simplify the loop | |
3366 { | |
3367 Label loop; | |
3368 __ bind(loop); | |
3369 __ movq(Address(rax, rdx, Address::times_8, | |
3370 sizeof(oopDesc) - oopSize), | |
3371 rcx); | |
3372 __ decrementl(rdx); | |
3373 __ jcc(Assembler::notZero, loop); | |
3374 } | |
3375 | |
3376 // initialize object header only. | |
3377 __ bind(initialize_header); | |
3378 if (UseBiasedLocking) { | |
4762
069ab3f976d3
7118863: Move sizeof(klassOopDesc) into the *Klass::*_offset_in_bytes() functions
stefank
parents:
3852
diff
changeset
|
3379 __ movptr(rscratch1, Address(rsi, Klass::prototype_header_offset())); |
304 | 3380 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), rscratch1); |
0 | 3381 } else { |
3382 __ movptr(Address(rax, oopDesc::mark_offset_in_bytes()), | |
3383 (intptr_t) markOopDesc::prototype()); // header (address 0x1) | |
3384 } | |
167
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
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113
diff
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|
3385 __ xorl(rcx, rcx); // use zero reg to clear memory (shorter code) |
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
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113
diff
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|
3386 __ store_klass_gap(rax, rcx); // zero klass gap for compressed oops |
feeb96a45707
6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
coleenp
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113
diff
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|
3387 __ store_klass(rax, rsi); // store klass last |
1248
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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1108
diff
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|
3388 |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
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1108
diff
changeset
|
3389 { |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3390 SkipIfEqual skip(_masm, &DTraceAllocProbes, false); |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3391 // Trigger dtrace event for fastpath |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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1108
diff
changeset
|
3392 __ push(atos); // save the return value |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3393 __ call_VM_leaf( |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3394 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), rax); |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
parents:
1108
diff
changeset
|
3395 __ pop(atos); // restore the return value |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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1108
diff
changeset
|
3396 |
455df1b81409
6587322: dtrace probe object__alloc doesn't fire in some situations on amd64
kamg
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1108
diff
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|
3397 } |
0 | 3398 __ jmp(done); |
3399 } | |
3400 | |
3401 | |
3402 // slow case | |
3403 __ bind(slow_case); | |
3404 __ get_constant_pool(c_rarg1); | |
3405 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3406 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), c_rarg1, c_rarg2); | |
3407 __ verify_oop(rax); | |
3408 | |
3409 // continue | |
3410 __ bind(done); | |
3411 } | |
3412 | |
3413 void TemplateTable::newarray() { | |
3414 transition(itos, atos); | |
3415 __ load_unsigned_byte(c_rarg1, at_bcp(1)); | |
3416 __ movl(c_rarg2, rax); | |
3417 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), | |
3418 c_rarg1, c_rarg2); | |
3419 } | |
3420 | |
3421 void TemplateTable::anewarray() { | |
3422 transition(itos, atos); | |
3423 __ get_unsigned_2_byte_index_at_bcp(c_rarg2, 1); | |
3424 __ get_constant_pool(c_rarg1); | |
3425 __ movl(c_rarg3, rax); | |
3426 call_VM(rax, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), | |
3427 c_rarg1, c_rarg2, c_rarg3); | |
3428 } | |
3429 | |
3430 void TemplateTable::arraylength() { | |
3431 transition(atos, itos); | |
3432 __ null_check(rax, arrayOopDesc::length_offset_in_bytes()); | |
3433 __ movl(rax, Address(rax, arrayOopDesc::length_offset_in_bytes())); | |
3434 } | |
3435 | |
3436 void TemplateTable::checkcast() { | |
3437 transition(atos, atos); | |
3438 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3439 __ testptr(rax, rax); // object is in rax |
0 | 3440 __ jcc(Assembler::zero, is_null); |
3441 | |
3442 // Get cpool & tags index | |
3443 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3444 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3445 // See if bytecode has already been quicked | |
3446 __ cmpb(Address(rdx, rbx, | |
3447 Address::times_1, | |
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3448 Array<u1>::base_offset_in_bytes()), |
0 | 3449 JVM_CONSTANT_Class); |
3450 __ jcc(Assembler::equal, quicked); | |
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3451 __ push(atos); // save receiver for result, and for GC |
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3452 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3453 // vm_result_2 has metadata result |
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3454 __ get_vm_result_2(rax, r15_thread); |
0 | 3455 __ pop_ptr(rdx); // restore receiver |
3456 __ jmpb(resolved); | |
3457 | |
3458 // Get superklass in rax and subklass in rbx | |
3459 __ bind(quicked); | |
304 | 3460 __ mov(rdx, rax); // Save object in rdx; rax needed for subtype check |
3461 __ movptr(rax, Address(rcx, rbx, | |
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3462 Address::times_8, sizeof(ConstantPool))); |
0 | 3463 |
3464 __ bind(resolved); | |
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3465 __ load_klass(rbx, rdx); |
0 | 3466 |
3467 // Generate subtype check. Blows rcx, rdi. Object in rdx. | |
3468 // Superklass in rax. Subklass in rbx. | |
3469 __ gen_subtype_check(rbx, ok_is_subtype); | |
3470 | |
3471 // Come here on failure | |
3472 __ push_ptr(rdx); | |
3473 // object is at TOS | |
3474 __ jump(ExternalAddress(Interpreter::_throw_ClassCastException_entry)); | |
3475 | |
3476 // Come here on success | |
3477 __ bind(ok_is_subtype); | |
304 | 3478 __ mov(rax, rdx); // Restore object in rdx |
0 | 3479 |
3480 // Collect counts on whether this check-cast sees NULLs a lot or not. | |
3481 if (ProfileInterpreter) { | |
3482 __ jmp(done); | |
3483 __ bind(is_null); | |
3484 __ profile_null_seen(rcx); | |
3485 } else { | |
3486 __ bind(is_null); // same as 'done' | |
3487 } | |
3488 __ bind(done); | |
3489 } | |
3490 | |
3491 void TemplateTable::instanceof() { | |
3492 transition(atos, itos); | |
3493 Label done, is_null, ok_is_subtype, quicked, resolved; | |
304 | 3494 __ testptr(rax, rax); |
0 | 3495 __ jcc(Assembler::zero, is_null); |
3496 | |
3497 // Get cpool & tags index | |
3498 __ get_cpool_and_tags(rcx, rdx); // rcx=cpool, rdx=tags array | |
3499 __ get_unsigned_2_byte_index_at_bcp(rbx, 1); // rbx=index | |
3500 // See if bytecode has already been quicked | |
3501 __ cmpb(Address(rdx, rbx, | |
3502 Address::times_1, | |
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3503 Array<u1>::base_offset_in_bytes()), |
0 | 3504 JVM_CONSTANT_Class); |
3505 __ jcc(Assembler::equal, quicked); | |
3506 | |
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3507 __ push(atos); // save receiver for result, and for GC |
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3508 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc)); |
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3509 // vm_result_2 has metadata result |
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3510 __ get_vm_result_2(rax, r15_thread); |
0 | 3511 __ pop_ptr(rdx); // restore receiver |
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3512 __ verify_oop(rdx); |
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3513 __ load_klass(rdx, rdx); |
0 | 3514 __ jmpb(resolved); |
3515 | |
3516 // Get superklass in rax and subklass in rdx | |
3517 __ bind(quicked); | |
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3518 __ load_klass(rdx, rax); |
304 | 3519 __ movptr(rax, Address(rcx, rbx, |
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3520 Address::times_8, sizeof(ConstantPool))); |
0 | 3521 |
3522 __ bind(resolved); | |
3523 | |
3524 // Generate subtype check. Blows rcx, rdi | |
3525 // Superklass in rax. Subklass in rdx. | |
3526 __ gen_subtype_check(rdx, ok_is_subtype); | |
3527 | |
3528 // Come here on failure | |
3529 __ xorl(rax, rax); | |
3530 __ jmpb(done); | |
3531 // Come here on success | |
3532 __ bind(ok_is_subtype); | |
3533 __ movl(rax, 1); | |
3534 | |
3535 // Collect counts on whether this test sees NULLs a lot or not. | |
3536 if (ProfileInterpreter) { | |
3537 __ jmp(done); | |
3538 __ bind(is_null); | |
3539 __ profile_null_seen(rcx); | |
3540 } else { | |
3541 __ bind(is_null); // same as 'done' | |
3542 } | |
3543 __ bind(done); | |
3544 // rax = 0: obj == NULL or obj is not an instanceof the specified klass | |
3545 // rax = 1: obj != NULL and obj is an instanceof the specified klass | |
3546 } | |
3547 | |
3548 //----------------------------------------------------------------------------- | |
3549 // Breakpoints | |
3550 void TemplateTable::_breakpoint() { | |
3551 // Note: We get here even if we are single stepping.. | |
3552 // jbug inists on setting breakpoints at every bytecode | |
3553 // even if we are in single step mode. | |
3554 | |
3555 transition(vtos, vtos); | |
3556 | |
3557 // get the unpatched byte code | |
3558 __ get_method(c_rarg1); | |
3559 __ call_VM(noreg, | |
3560 CAST_FROM_FN_PTR(address, | |
3561 InterpreterRuntime::get_original_bytecode_at), | |
3562 c_rarg1, r13); | |
304 | 3563 __ mov(rbx, rax); |
0 | 3564 |
3565 // post the breakpoint event | |
3566 __ get_method(c_rarg1); | |
3567 __ call_VM(noreg, | |
3568 CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), | |
3569 c_rarg1, r13); | |
3570 | |
3571 // complete the execution of original bytecode | |
3572 __ dispatch_only_normal(vtos); | |
3573 } | |
3574 | |
3575 //----------------------------------------------------------------------------- | |
3576 // Exceptions | |
3577 | |
3578 void TemplateTable::athrow() { | |
3579 transition(atos, vtos); | |
3580 __ null_check(rax); | |
3581 __ jump(ExternalAddress(Interpreter::throw_exception_entry())); | |
3582 } | |
3583 | |
3584 //----------------------------------------------------------------------------- | |
3585 // Synchronization | |
3586 // | |
3587 // Note: monitorenter & exit are symmetric routines; which is reflected | |
3588 // in the assembly code structure as well | |
3589 // | |
3590 // Stack layout: | |
3591 // | |
3592 // [expressions ] <--- rsp = expression stack top | |
3593 // .. | |
3594 // [expressions ] | |
3595 // [monitor entry] <--- monitor block top = expression stack bot | |
3596 // .. | |
3597 // [monitor entry] | |
3598 // [frame data ] <--- monitor block bot | |
3599 // ... | |
3600 // [saved rbp ] <--- rbp | |
3601 void TemplateTable::monitorenter() { | |
3602 transition(atos, vtos); | |
3603 | |
3604 // check for NULL object | |
3605 __ null_check(rax); | |
3606 | |
3607 const Address monitor_block_top( | |
3608 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3609 const Address monitor_block_bot( | |
3610 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3611 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3612 | |
3613 Label allocated; | |
3614 | |
3615 // initialize entry pointer | |
3616 __ xorl(c_rarg1, c_rarg1); // points to free slot or NULL | |
3617 | |
3618 // find a free slot in the monitor block (result in c_rarg1) | |
3619 { | |
3620 Label entry, loop, exit; | |
304 | 3621 __ movptr(c_rarg3, monitor_block_top); // points to current entry, |
0 | 3622 // starting with top-most entry |
304 | 3623 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3624 // of monitor block |
3625 __ jmpb(entry); | |
3626 | |
3627 __ bind(loop); | |
3628 // check if current entry is used | |
304 | 3629 __ cmpptr(Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes()), (int32_t) NULL_WORD); |
0 | 3630 // if not used then remember entry in c_rarg1 |
304 | 3631 __ cmov(Assembler::equal, c_rarg1, c_rarg3); |
0 | 3632 // check if current entry is for same object |
304 | 3633 __ cmpptr(rax, Address(c_rarg3, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3634 // if same object then stop searching |
3635 __ jccb(Assembler::equal, exit); | |
3636 // otherwise advance to next entry | |
304 | 3637 __ addptr(c_rarg3, entry_size); |
0 | 3638 __ bind(entry); |
3639 // check if bottom reached | |
304 | 3640 __ cmpptr(c_rarg3, c_rarg2); |
0 | 3641 // if not at bottom then check this entry |
3642 __ jcc(Assembler::notEqual, loop); | |
3643 __ bind(exit); | |
3644 } | |
3645 | |
304 | 3646 __ testptr(c_rarg1, c_rarg1); // check if a slot has been found |
0 | 3647 __ jcc(Assembler::notZero, allocated); // if found, continue with that one |
3648 | |
3649 // allocate one if there's no free slot | |
3650 { | |
3651 Label entry, loop; | |
304 | 3652 // 1. compute new pointers // rsp: old expression stack top |
3653 __ movptr(c_rarg1, monitor_block_bot); // c_rarg1: old expression stack bottom | |
3654 __ subptr(rsp, entry_size); // move expression stack top | |
3655 __ subptr(c_rarg1, entry_size); // move expression stack bottom | |
3656 __ mov(c_rarg3, rsp); // set start value for copy loop | |
3657 __ movptr(monitor_block_bot, c_rarg1); // set new monitor block bottom | |
0 | 3658 __ jmp(entry); |
3659 // 2. move expression stack contents | |
3660 __ bind(loop); | |
304 | 3661 __ movptr(c_rarg2, Address(c_rarg3, entry_size)); // load expression stack |
3662 // word from old location | |
3663 __ movptr(Address(c_rarg3, 0), c_rarg2); // and store it at new location | |
3664 __ addptr(c_rarg3, wordSize); // advance to next word | |
0 | 3665 __ bind(entry); |
304 | 3666 __ cmpptr(c_rarg3, c_rarg1); // check if bottom reached |
0 | 3667 __ jcc(Assembler::notEqual, loop); // if not at bottom then |
3668 // copy next word | |
3669 } | |
3670 | |
3671 // call run-time routine | |
3672 // c_rarg1: points to monitor entry | |
3673 __ bind(allocated); | |
3674 | |
3675 // Increment bcp to point to the next bytecode, so exception | |
3676 // handling for async. exceptions work correctly. | |
3677 // The object has already been poped from the stack, so the | |
3678 // expression stack looks correct. | |
304 | 3679 __ increment(r13); |
0 | 3680 |
3681 // store object | |
304 | 3682 __ movptr(Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes()), rax); |
0 | 3683 __ lock_object(c_rarg1); |
3684 | |
3685 // check to make sure this monitor doesn't cause stack overflow after locking | |
3686 __ save_bcp(); // in case of exception | |
3687 __ generate_stack_overflow_check(0); | |
3688 | |
3689 // The bcp has already been incremented. Just need to dispatch to | |
3690 // next instruction. | |
3691 __ dispatch_next(vtos); | |
3692 } | |
3693 | |
3694 | |
3695 void TemplateTable::monitorexit() { | |
3696 transition(atos, vtos); | |
3697 | |
3698 // check for NULL object | |
3699 __ null_check(rax); | |
3700 | |
3701 const Address monitor_block_top( | |
3702 rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize); | |
3703 const Address monitor_block_bot( | |
3704 rbp, frame::interpreter_frame_initial_sp_offset * wordSize); | |
3705 const int entry_size = frame::interpreter_frame_monitor_size() * wordSize; | |
3706 | |
3707 Label found; | |
3708 | |
3709 // find matching slot | |
3710 { | |
3711 Label entry, loop; | |
304 | 3712 __ movptr(c_rarg1, monitor_block_top); // points to current entry, |
0 | 3713 // starting with top-most entry |
304 | 3714 __ lea(c_rarg2, monitor_block_bot); // points to word before bottom |
0 | 3715 // of monitor block |
3716 __ jmpb(entry); | |
3717 | |
3718 __ bind(loop); | |
3719 // check if current entry is for same object | |
304 | 3720 __ cmpptr(rax, Address(c_rarg1, BasicObjectLock::obj_offset_in_bytes())); |
0 | 3721 // if same object then stop searching |
3722 __ jcc(Assembler::equal, found); | |
3723 // otherwise advance to next entry | |
304 | 3724 __ addptr(c_rarg1, entry_size); |
0 | 3725 __ bind(entry); |
3726 // check if bottom reached | |
304 | 3727 __ cmpptr(c_rarg1, c_rarg2); |
0 | 3728 // if not at bottom then check this entry |
3729 __ jcc(Assembler::notEqual, loop); | |
3730 } | |
3731 | |
3732 // error handling. Unlocking was not block-structured | |
3733 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
3734 InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
3735 __ should_not_reach_here(); | |
3736 | |
3737 // call run-time routine | |
3738 // rsi: points to monitor entry | |
3739 __ bind(found); | |
3740 __ push_ptr(rax); // make sure object is on stack (contract with oopMaps) | |
3741 __ unlock_object(c_rarg1); | |
3742 __ pop_ptr(rax); // discard object | |
3743 } | |
3744 | |
3745 | |
3746 // Wide instructions | |
3747 void TemplateTable::wide() { | |
3748 transition(vtos, vtos); | |
3749 __ load_unsigned_byte(rbx, at_bcp(1)); | |
3750 __ lea(rscratch1, ExternalAddress((address)Interpreter::_wentry_point)); | |
3751 __ jmp(Address(rscratch1, rbx, Address::times_8)); | |
3752 // Note: the r13 increment step is part of the individual wide | |
3753 // bytecode implementations | |
3754 } | |
3755 | |
3756 | |
3757 // Multi arrays | |
3758 void TemplateTable::multianewarray() { | |
3759 transition(vtos, atos); | |
3760 __ load_unsigned_byte(rax, at_bcp(3)); // get number of dimensions | |
3761 // last dim is on top of stack; we want address of first one: | |
3762 // first_addr = last_addr + (ndims - 1) * wordSize | |
304 | 3763 __ lea(c_rarg1, Address(rsp, rax, Address::times_8, -wordSize)); |
0 | 3764 call_VM(rax, |
3765 CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), | |
3766 c_rarg1); | |
3767 __ load_unsigned_byte(rbx, at_bcp(3)); | |
304 | 3768 __ lea(rsp, Address(rsp, rbx, Address::times_8)); |
0 | 3769 } |
304 | 3770 #endif // !CC_INTERP |