Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 1602:136b78722a08
6939203: JSR 292 needs method handle constants
Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode.
Reviewed-by: twisti, never
| author | jrose |
|---|---|
| date | Wed, 09 Jun 2010 18:50:45 -0700 |
| parents | e9ff18c4ace7 |
| children | 126ea7725993 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 1997, 2010, 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 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_templateTable_sparc.cpp.incl" | |
| 27 | |
| 28 #ifndef CC_INTERP | |
| 29 #define __ _masm-> | |
| 30 | |
|
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31 // Misc helpers |
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32 |
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33 // Do an oop store like *(base + index + offset) = val |
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34 // index can be noreg, |
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35 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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36 Register base, |
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37 Register index, |
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38 int offset, |
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39 Register val, |
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40 Register tmp, |
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41 BarrierSet::Name barrier, |
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42 bool precise) { |
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43 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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44 assert(index == noreg || offset == 0, "only one offset"); |
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45 switch (barrier) { |
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46 #ifndef SERIALGC |
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47 case BarrierSet::G1SATBCT: |
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48 case BarrierSet::G1SATBCTLogging: |
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49 { |
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50 __ g1_write_barrier_pre( base, index, offset, tmp, /*preserve_o_regs*/true); |
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51 if (index == noreg ) { |
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52 assert(Assembler::is_simm13(offset), "fix this code"); |
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53 __ store_heap_oop(val, base, offset); |
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54 } else { |
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55 __ store_heap_oop(val, base, index); |
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56 } |
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57 |
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58 // No need for post barrier if storing NULL |
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59 if (val != G0) { |
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60 if (precise) { |
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61 if (index == noreg) { |
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62 __ add(base, offset, base); |
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63 } else { |
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64 __ add(base, index, base); |
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65 } |
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66 } |
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67 __ g1_write_barrier_post(base, val, tmp); |
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68 } |
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69 } |
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70 break; |
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71 #endif // SERIALGC |
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72 case BarrierSet::CardTableModRef: |
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73 case BarrierSet::CardTableExtension: |
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74 { |
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75 if (index == noreg ) { |
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76 assert(Assembler::is_simm13(offset), "fix this code"); |
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77 __ store_heap_oop(val, base, offset); |
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78 } else { |
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79 __ store_heap_oop(val, base, index); |
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80 } |
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81 // No need for post barrier if storing NULL |
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82 if (val != G0) { |
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83 if (precise) { |
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84 if (index == noreg) { |
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85 __ add(base, offset, base); |
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86 } else { |
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87 __ add(base, index, base); |
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88 } |
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89 } |
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90 __ card_write_barrier_post(base, val, tmp); |
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91 } |
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92 } |
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93 break; |
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94 case BarrierSet::ModRef: |
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95 case BarrierSet::Other: |
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96 ShouldNotReachHere(); |
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97 break; |
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98 default : |
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99 ShouldNotReachHere(); |
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100 |
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101 } |
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102 } |
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103 |
| 0 | 104 |
| 105 //---------------------------------------------------------------------------------------------------- | |
| 106 // Platform-dependent initialization | |
| 107 | |
| 108 void TemplateTable::pd_initialize() { | |
| 109 // (none) | |
| 110 } | |
| 111 | |
| 112 | |
| 113 //---------------------------------------------------------------------------------------------------- | |
| 114 // Condition conversion | |
| 115 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
| 116 switch (cc) { | |
| 117 case TemplateTable::equal : return Assembler::notEqual; | |
| 118 case TemplateTable::not_equal : return Assembler::equal; | |
| 119 case TemplateTable::less : return Assembler::greaterEqual; | |
| 120 case TemplateTable::less_equal : return Assembler::greater; | |
| 121 case TemplateTable::greater : return Assembler::lessEqual; | |
| 122 case TemplateTable::greater_equal: return Assembler::less; | |
| 123 } | |
| 124 ShouldNotReachHere(); | |
| 125 return Assembler::zero; | |
| 126 } | |
| 127 | |
| 128 //---------------------------------------------------------------------------------------------------- | |
| 129 // Miscelaneous helper routines | |
| 130 | |
| 131 | |
| 132 Address TemplateTable::at_bcp(int offset) { | |
| 133 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 727 | 134 return Address(Lbcp, offset); |
| 0 | 135 } |
| 136 | |
| 137 | |
| 138 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register Rbyte_code, | |
| 139 Register Rscratch, | |
| 140 bool load_bc_into_scratch /*=true*/) { | |
| 141 // With sharing on, may need to test methodOop flag. | |
| 142 if (!RewriteBytecodes) return; | |
| 143 if (load_bc_into_scratch) __ set(bc, Rbyte_code); | |
| 144 Label patch_done; | |
| 145 if (JvmtiExport::can_post_breakpoint()) { | |
| 146 Label fast_patch; | |
| 147 __ ldub(at_bcp(0), Rscratch); | |
| 148 __ cmp(Rscratch, Bytecodes::_breakpoint); | |
| 149 __ br(Assembler::notEqual, false, Assembler::pt, fast_patch); | |
| 150 __ delayed()->nop(); // don't bother to hoist the stb here | |
| 151 // perform the quickening, slowly, in the bowels of the breakpoint table | |
| 152 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, Rbyte_code); | |
| 153 __ ba(false, patch_done); | |
| 154 __ delayed()->nop(); | |
| 155 __ bind(fast_patch); | |
| 156 } | |
| 157 #ifdef ASSERT | |
| 158 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
| 159 Label okay; | |
| 160 __ ldub(at_bcp(0), Rscratch); | |
| 161 __ cmp(Rscratch, orig_bytecode); | |
| 162 __ br(Assembler::equal, false, Assembler::pt, okay); | |
| 163 __ delayed() ->cmp(Rscratch, Rbyte_code); | |
| 164 __ br(Assembler::equal, false, Assembler::pt, okay); | |
| 165 __ delayed()->nop(); | |
| 166 __ stop("Rewriting wrong bytecode location"); | |
| 167 __ bind(okay); | |
| 168 #endif | |
| 169 __ stb(Rbyte_code, at_bcp(0)); | |
| 170 __ bind(patch_done); | |
| 171 } | |
| 172 | |
| 173 //---------------------------------------------------------------------------------------------------- | |
| 174 // Individual instructions | |
| 175 | |
| 176 void TemplateTable::nop() { | |
| 177 transition(vtos, vtos); | |
| 178 // nothing to do | |
| 179 } | |
| 180 | |
| 181 void TemplateTable::shouldnotreachhere() { | |
| 182 transition(vtos, vtos); | |
| 183 __ stop("shouldnotreachhere bytecode"); | |
| 184 } | |
| 185 | |
| 186 void TemplateTable::aconst_null() { | |
| 187 transition(vtos, atos); | |
| 188 __ clr(Otos_i); | |
| 189 } | |
| 190 | |
| 191 | |
| 192 void TemplateTable::iconst(int value) { | |
| 193 transition(vtos, itos); | |
| 194 __ set(value, Otos_i); | |
| 195 } | |
| 196 | |
| 197 | |
| 198 void TemplateTable::lconst(int value) { | |
| 199 transition(vtos, ltos); | |
| 200 assert(value >= 0, "check this code"); | |
| 201 #ifdef _LP64 | |
| 202 __ set(value, Otos_l); | |
| 203 #else | |
| 204 __ set(value, Otos_l2); | |
| 205 __ clr( Otos_l1); | |
| 206 #endif | |
| 207 } | |
| 208 | |
| 209 | |
| 210 void TemplateTable::fconst(int value) { | |
| 211 transition(vtos, ftos); | |
| 212 static float zero = 0.0, one = 1.0, two = 2.0; | |
| 213 float* p; | |
| 214 switch( value ) { | |
| 215 default: ShouldNotReachHere(); | |
| 216 case 0: p = &zero; break; | |
| 217 case 1: p = &one; break; | |
| 218 case 2: p = &two; break; | |
| 219 } | |
| 727 | 220 AddressLiteral a(p); |
| 221 __ sethi(a, G3_scratch); | |
| 222 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
| 0 | 223 } |
| 224 | |
| 225 | |
| 226 void TemplateTable::dconst(int value) { | |
| 227 transition(vtos, dtos); | |
| 228 static double zero = 0.0, one = 1.0; | |
| 229 double* p; | |
| 230 switch( value ) { | |
| 231 default: ShouldNotReachHere(); | |
| 232 case 0: p = &zero; break; | |
| 233 case 1: p = &one; break; | |
| 234 } | |
| 727 | 235 AddressLiteral a(p); |
| 236 __ sethi(a, G3_scratch); | |
| 237 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
| 0 | 238 } |
| 239 | |
| 240 | |
| 241 // %%%%% Should factore most snippet templates across platforms | |
| 242 | |
| 243 void TemplateTable::bipush() { | |
| 244 transition(vtos, itos); | |
| 245 __ ldsb( at_bcp(1), Otos_i ); | |
| 246 } | |
| 247 | |
| 248 void TemplateTable::sipush() { | |
| 249 transition(vtos, itos); | |
| 250 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
| 251 } | |
| 252 | |
| 253 void TemplateTable::ldc(bool wide) { | |
| 254 transition(vtos, vtos); | |
| 255 Label call_ldc, notInt, notString, notClass, exit; | |
| 256 | |
| 257 if (wide) { | |
| 258 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 259 } else { | |
| 260 __ ldub(Lbcp, 1, O1); | |
| 261 } | |
| 262 __ get_cpool_and_tags(O0, O2); | |
| 263 | |
| 264 const int base_offset = constantPoolOopDesc::header_size() * wordSize; | |
| 265 const int tags_offset = typeArrayOopDesc::header_size(T_BYTE) * wordSize; | |
| 266 | |
| 267 // get type from tags | |
| 268 __ add(O2, tags_offset, O2); | |
| 269 __ ldub(O2, O1, O2); | |
| 270 __ cmp(O2, JVM_CONSTANT_UnresolvedString); // unresolved string? If so, must resolve | |
| 271 __ brx(Assembler::equal, true, Assembler::pt, call_ldc); | |
| 272 __ delayed()->nop(); | |
| 273 | |
| 274 __ cmp(O2, JVM_CONSTANT_UnresolvedClass); // unresolved class? If so, must resolve | |
| 275 __ brx(Assembler::equal, true, Assembler::pt, call_ldc); | |
| 276 __ delayed()->nop(); | |
| 277 | |
| 278 __ cmp(O2, JVM_CONSTANT_UnresolvedClassInError); // unresolved class in error state | |
| 279 __ brx(Assembler::equal, true, Assembler::pn, call_ldc); | |
| 280 __ delayed()->nop(); | |
| 281 | |
| 282 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
| 283 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
| 284 __ delayed()->add(O0, base_offset, O0); | |
| 285 | |
| 286 __ bind(call_ldc); | |
| 287 __ set(wide, O1); | |
| 288 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
| 289 __ push(atos); | |
| 290 __ ba(false, exit); | |
| 291 __ delayed()->nop(); | |
| 292 | |
| 293 __ bind(notClass); | |
| 294 // __ add(O0, base_offset, O0); | |
| 295 __ sll(O1, LogBytesPerWord, O1); | |
| 296 __ cmp(O2, JVM_CONSTANT_Integer); | |
| 297 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
| 298 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
| 299 __ ld(O0, O1, Otos_i); | |
| 300 __ push(itos); | |
| 301 __ ba(false, exit); | |
| 302 __ delayed()->nop(); | |
| 303 | |
| 304 __ bind(notInt); | |
| 305 // __ cmp(O2, JVM_CONSTANT_String); | |
| 306 __ brx(Assembler::notEqual, true, Assembler::pt, notString); | |
| 307 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
| 308 __ ld_ptr(O0, O1, Otos_i); | |
| 309 __ verify_oop(Otos_i); | |
| 310 __ push(atos); | |
| 311 __ ba(false, exit); | |
| 312 __ delayed()->nop(); | |
| 313 | |
| 314 __ bind(notString); | |
| 315 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
| 316 __ push(ftos); | |
| 317 | |
| 318 __ bind(exit); | |
| 319 } | |
| 320 | |
| 1602 | 321 // Fast path for caching oop constants. |
| 322 // %%% We should use this to handle Class and String constants also. | |
| 323 // %%% It will simplify the ldc/primitive path considerably. | |
| 324 void TemplateTable::fast_aldc(bool wide) { | |
| 325 transition(vtos, atos); | |
| 326 | |
| 327 if (!EnableMethodHandles) { | |
| 328 // We should not encounter this bytecode if !EnableMethodHandles. | |
| 329 // The verifier will stop it. However, if we get past the verifier, | |
| 330 // this will stop the thread in a reasonable way, without crashing the JVM. | |
| 331 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 332 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 333 // the call_VM checks for exception, so we should never return here. | |
| 334 __ should_not_reach_here(); | |
| 335 return; | |
| 336 } | |
| 337 | |
| 338 Register Rcache = G3_scratch; | |
| 339 Register Rscratch = G4_scratch; | |
| 340 | |
| 341 resolve_cache_and_index(f1_oop, Otos_i, Rcache, Rscratch, wide ? sizeof(u2) : sizeof(u1)); | |
| 342 | |
| 343 __ verify_oop(Otos_i); | |
| 344 } | |
| 345 | |
| 0 | 346 void TemplateTable::ldc2_w() { |
| 347 transition(vtos, vtos); | |
| 348 Label retry, resolved, Long, exit; | |
| 349 | |
| 350 __ bind(retry); | |
| 351 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 352 __ get_cpool_and_tags(O0, O2); | |
| 353 | |
| 354 const int base_offset = constantPoolOopDesc::header_size() * wordSize; | |
| 355 const int tags_offset = typeArrayOopDesc::header_size(T_BYTE) * wordSize; | |
| 356 // get type from tags | |
| 357 __ add(O2, tags_offset, O2); | |
| 358 __ ldub(O2, O1, O2); | |
| 359 | |
| 360 __ sll(O1, LogBytesPerWord, O1); | |
| 361 __ add(O0, O1, G3_scratch); | |
| 362 | |
| 363 __ cmp(O2, JVM_CONSTANT_Double); | |
| 364 __ brx(Assembler::notEqual, false, Assembler::pt, Long); | |
| 365 __ delayed()->nop(); | |
| 366 // A double can be placed at word-aligned locations in the constant pool. | |
| 367 // Check out Conversions.java for an example. | |
| 368 // Also constantPoolOopDesc::header_size() is 20, which makes it very difficult | |
| 369 // to double-align double on the constant pool. SG, 11/7/97 | |
| 370 #ifdef _LP64 | |
| 371 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
| 372 #else | |
| 373 FloatRegister f = Ftos_d; | |
| 374 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
| 375 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
| 376 f->successor()); | |
| 377 #endif | |
| 378 __ push(dtos); | |
| 379 __ ba(false, exit); | |
| 380 __ delayed()->nop(); | |
| 381 | |
| 382 __ bind(Long); | |
| 383 #ifdef _LP64 | |
| 384 __ ldx(G3_scratch, base_offset, Otos_l); | |
| 385 #else | |
| 386 __ ld(G3_scratch, base_offset, Otos_l); | |
| 387 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
| 388 #endif | |
| 389 __ push(ltos); | |
| 390 | |
| 391 __ bind(exit); | |
| 392 } | |
| 393 | |
| 394 | |
| 395 void TemplateTable::locals_index(Register reg, int offset) { | |
| 396 __ ldub( at_bcp(offset), reg ); | |
| 397 } | |
| 398 | |
| 399 | |
| 400 void TemplateTable::locals_index_wide(Register reg) { | |
| 401 // offset is 2, not 1, because Lbcp points to wide prefix code | |
| 402 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
| 403 } | |
| 404 | |
| 405 void TemplateTable::iload() { | |
| 406 transition(vtos, itos); | |
| 407 // Rewrite iload,iload pair into fast_iload2 | |
| 408 // iload,caload pair into fast_icaload | |
| 409 if (RewriteFrequentPairs) { | |
| 410 Label rewrite, done; | |
| 411 | |
| 412 // get next byte | |
| 413 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
| 414 | |
| 415 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 416 // last two iloads in a pair. Comparing against fast_iload means that | |
| 417 // the next bytecode is neither an iload or a caload, and therefore | |
| 418 // an iload pair. | |
| 419 __ cmp(G3_scratch, (int)Bytecodes::_iload); | |
| 420 __ br(Assembler::equal, false, Assembler::pn, done); | |
| 421 __ delayed()->nop(); | |
| 422 | |
| 423 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
| 424 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 425 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
| 426 | |
| 427 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
| 428 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 429 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
| 430 | |
| 431 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
| 432 // rewrite | |
| 433 // G4_scratch: fast bytecode | |
| 434 __ bind(rewrite); | |
| 435 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
| 436 __ bind(done); | |
| 437 } | |
| 438 | |
| 439 // Get the local value into tos | |
| 440 locals_index(G3_scratch); | |
| 441 __ access_local_int( G3_scratch, Otos_i ); | |
| 442 } | |
| 443 | |
| 444 void TemplateTable::fast_iload2() { | |
| 445 transition(vtos, itos); | |
| 446 locals_index(G3_scratch); | |
| 447 __ access_local_int( G3_scratch, Otos_i ); | |
| 448 __ push_i(); | |
| 449 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
| 450 __ access_local_int( G3_scratch, Otos_i ); | |
| 451 } | |
| 452 | |
| 453 void TemplateTable::fast_iload() { | |
| 454 transition(vtos, itos); | |
| 455 locals_index(G3_scratch); | |
| 456 __ access_local_int( G3_scratch, Otos_i ); | |
| 457 } | |
| 458 | |
| 459 void TemplateTable::lload() { | |
| 460 transition(vtos, ltos); | |
| 461 locals_index(G3_scratch); | |
| 462 __ access_local_long( G3_scratch, Otos_l ); | |
| 463 } | |
| 464 | |
| 465 | |
| 466 void TemplateTable::fload() { | |
| 467 transition(vtos, ftos); | |
| 468 locals_index(G3_scratch); | |
| 469 __ access_local_float( G3_scratch, Ftos_f ); | |
| 470 } | |
| 471 | |
| 472 | |
| 473 void TemplateTable::dload() { | |
| 474 transition(vtos, dtos); | |
| 475 locals_index(G3_scratch); | |
| 476 __ access_local_double( G3_scratch, Ftos_d ); | |
| 477 } | |
| 478 | |
| 479 | |
| 480 void TemplateTable::aload() { | |
| 481 transition(vtos, atos); | |
| 482 locals_index(G3_scratch); | |
| 483 __ access_local_ptr( G3_scratch, Otos_i); | |
| 484 } | |
| 485 | |
| 486 | |
| 487 void TemplateTable::wide_iload() { | |
| 488 transition(vtos, itos); | |
| 489 locals_index_wide(G3_scratch); | |
| 490 __ access_local_int( G3_scratch, Otos_i ); | |
| 491 } | |
| 492 | |
| 493 | |
| 494 void TemplateTable::wide_lload() { | |
| 495 transition(vtos, ltos); | |
| 496 locals_index_wide(G3_scratch); | |
| 497 __ access_local_long( G3_scratch, Otos_l ); | |
| 498 } | |
| 499 | |
| 500 | |
| 501 void TemplateTable::wide_fload() { | |
| 502 transition(vtos, ftos); | |
| 503 locals_index_wide(G3_scratch); | |
| 504 __ access_local_float( G3_scratch, Ftos_f ); | |
| 505 } | |
| 506 | |
| 507 | |
| 508 void TemplateTable::wide_dload() { | |
| 509 transition(vtos, dtos); | |
| 510 locals_index_wide(G3_scratch); | |
| 511 __ access_local_double( G3_scratch, Ftos_d ); | |
| 512 } | |
| 513 | |
| 514 | |
| 515 void TemplateTable::wide_aload() { | |
| 516 transition(vtos, atos); | |
| 517 locals_index_wide(G3_scratch); | |
| 518 __ access_local_ptr( G3_scratch, Otos_i ); | |
| 519 __ verify_oop(Otos_i); | |
| 520 } | |
| 521 | |
| 522 | |
| 523 void TemplateTable::iaload() { | |
| 524 transition(itos, itos); | |
| 525 // Otos_i: index | |
| 526 // tos: array | |
| 527 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 528 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
| 529 } | |
| 530 | |
| 531 | |
| 532 void TemplateTable::laload() { | |
| 533 transition(itos, ltos); | |
| 534 // Otos_i: index | |
| 535 // O2: array | |
| 536 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 537 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
| 538 } | |
| 539 | |
| 540 | |
| 541 void TemplateTable::faload() { | |
| 542 transition(itos, ftos); | |
| 543 // Otos_i: index | |
| 544 // O2: array | |
| 545 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 546 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
| 547 } | |
| 548 | |
| 549 | |
| 550 void TemplateTable::daload() { | |
| 551 transition(itos, dtos); | |
| 552 // Otos_i: index | |
| 553 // O2: array | |
| 554 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 555 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
| 556 } | |
| 557 | |
| 558 | |
| 559 void TemplateTable::aaload() { | |
| 560 transition(itos, atos); | |
| 561 // Otos_i: index | |
| 562 // tos: array | |
|
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563 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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564 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
| 0 | 565 __ verify_oop(Otos_i); |
| 566 } | |
| 567 | |
| 568 | |
| 569 void TemplateTable::baload() { | |
| 570 transition(itos, itos); | |
| 571 // Otos_i: index | |
| 572 // tos: array | |
| 573 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
| 574 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
| 575 } | |
| 576 | |
| 577 | |
| 578 void TemplateTable::caload() { | |
| 579 transition(itos, itos); | |
| 580 // Otos_i: index | |
| 581 // tos: array | |
| 582 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 583 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 584 } | |
| 585 | |
| 586 void TemplateTable::fast_icaload() { | |
| 587 transition(vtos, itos); | |
| 588 // Otos_i: index | |
| 589 // tos: array | |
| 590 locals_index(G3_scratch); | |
| 591 __ access_local_int( G3_scratch, Otos_i ); | |
| 592 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 593 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 594 } | |
| 595 | |
| 596 | |
| 597 void TemplateTable::saload() { | |
| 598 transition(itos, itos); | |
| 599 // Otos_i: index | |
| 600 // tos: array | |
| 601 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 602 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
| 603 } | |
| 604 | |
| 605 | |
| 606 void TemplateTable::iload(int n) { | |
| 607 transition(vtos, itos); | |
| 608 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 609 } | |
| 610 | |
| 611 | |
| 612 void TemplateTable::lload(int n) { | |
| 613 transition(vtos, ltos); | |
| 614 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
| 615 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
| 616 } | |
| 617 | |
| 618 | |
| 619 void TemplateTable::fload(int n) { | |
| 620 transition(vtos, ftos); | |
| 621 assert(n < Argument::n_register_parameters, "would need more code"); | |
| 622 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
| 623 } | |
| 624 | |
| 625 | |
| 626 void TemplateTable::dload(int n) { | |
| 627 transition(vtos, dtos); | |
| 628 FloatRegister dst = Ftos_d; | |
| 629 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
| 630 } | |
| 631 | |
| 632 | |
| 633 void TemplateTable::aload(int n) { | |
| 634 transition(vtos, atos); | |
| 635 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 636 } | |
| 637 | |
| 638 | |
| 639 void TemplateTable::aload_0() { | |
| 640 transition(vtos, atos); | |
| 641 | |
| 642 // According to bytecode histograms, the pairs: | |
| 643 // | |
| 644 // _aload_0, _fast_igetfield (itos) | |
| 645 // _aload_0, _fast_agetfield (atos) | |
| 646 // _aload_0, _fast_fgetfield (ftos) | |
| 647 // | |
| 648 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 649 // bytecode checks the next bytecode and then rewrites the current | |
| 650 // bytecode into a pair bytecode; otherwise it rewrites the current | |
| 651 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 652 // | |
| 653 if (RewriteFrequentPairs) { | |
| 654 Label rewrite, done; | |
| 655 | |
| 656 // get next byte | |
| 657 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
| 658 | |
| 659 // do actual aload_0 | |
| 660 aload(0); | |
| 661 | |
| 662 // if _getfield then wait with rewrite | |
| 663 __ cmp(G3_scratch, (int)Bytecodes::_getfield); | |
| 664 __ br(Assembler::equal, false, Assembler::pn, done); | |
| 665 __ delayed()->nop(); | |
| 666 | |
| 667 // if _igetfield then rewrite to _fast_iaccess_0 | |
| 668 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 669 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
| 670 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 671 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
| 672 | |
| 673 // if _agetfield then rewrite to _fast_aaccess_0 | |
| 674 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 675 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
| 676 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 677 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
| 678 | |
| 679 // if _fgetfield then rewrite to _fast_faccess_0 | |
| 680 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 681 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
| 682 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 683 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
| 684 | |
| 685 // else rewrite to _fast_aload0 | |
| 686 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 687 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
| 688 | |
| 689 // rewrite | |
| 690 // G4_scratch: fast bytecode | |
| 691 __ bind(rewrite); | |
| 692 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
| 693 __ bind(done); | |
| 694 } else { | |
| 695 aload(0); | |
| 696 } | |
| 697 } | |
| 698 | |
| 699 | |
| 700 void TemplateTable::istore() { | |
| 701 transition(itos, vtos); | |
| 702 locals_index(G3_scratch); | |
| 703 __ store_local_int( G3_scratch, Otos_i ); | |
| 704 } | |
| 705 | |
| 706 | |
| 707 void TemplateTable::lstore() { | |
| 708 transition(ltos, vtos); | |
| 709 locals_index(G3_scratch); | |
| 710 __ store_local_long( G3_scratch, Otos_l ); | |
| 711 } | |
| 712 | |
| 713 | |
| 714 void TemplateTable::fstore() { | |
| 715 transition(ftos, vtos); | |
| 716 locals_index(G3_scratch); | |
| 717 __ store_local_float( G3_scratch, Ftos_f ); | |
| 718 } | |
| 719 | |
| 720 | |
| 721 void TemplateTable::dstore() { | |
| 722 transition(dtos, vtos); | |
| 723 locals_index(G3_scratch); | |
| 724 __ store_local_double( G3_scratch, Ftos_d ); | |
| 725 } | |
| 726 | |
| 727 | |
| 728 void TemplateTable::astore() { | |
| 729 transition(vtos, vtos); | |
| 1506 | 730 __ load_ptr(0, Otos_i); |
| 731 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 732 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 733 locals_index(G3_scratch); | |
| 1506 | 734 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 735 } |
| 736 | |
| 737 | |
| 738 void TemplateTable::wide_istore() { | |
| 739 transition(vtos, vtos); | |
| 740 __ pop_i(); | |
| 741 locals_index_wide(G3_scratch); | |
| 742 __ store_local_int( G3_scratch, Otos_i ); | |
| 743 } | |
| 744 | |
| 745 | |
| 746 void TemplateTable::wide_lstore() { | |
| 747 transition(vtos, vtos); | |
| 748 __ pop_l(); | |
| 749 locals_index_wide(G3_scratch); | |
| 750 __ store_local_long( G3_scratch, Otos_l ); | |
| 751 } | |
| 752 | |
| 753 | |
| 754 void TemplateTable::wide_fstore() { | |
| 755 transition(vtos, vtos); | |
| 756 __ pop_f(); | |
| 757 locals_index_wide(G3_scratch); | |
| 758 __ store_local_float( G3_scratch, Ftos_f ); | |
| 759 } | |
| 760 | |
| 761 | |
| 762 void TemplateTable::wide_dstore() { | |
| 763 transition(vtos, vtos); | |
| 764 __ pop_d(); | |
| 765 locals_index_wide(G3_scratch); | |
| 766 __ store_local_double( G3_scratch, Ftos_d ); | |
| 767 } | |
| 768 | |
| 769 | |
| 770 void TemplateTable::wide_astore() { | |
| 771 transition(vtos, vtos); | |
| 1506 | 772 __ load_ptr(0, Otos_i); |
| 773 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 774 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 775 locals_index_wide(G3_scratch); | |
| 1506 | 776 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 777 } |
| 778 | |
| 779 | |
| 780 void TemplateTable::iastore() { | |
| 781 transition(itos, vtos); | |
| 782 __ pop_i(O2); // index | |
| 783 // Otos_i: val | |
| 784 // O3: array | |
| 785 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 786 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
| 787 } | |
| 788 | |
| 789 | |
| 790 void TemplateTable::lastore() { | |
| 791 transition(ltos, vtos); | |
| 792 __ pop_i(O2); // index | |
| 793 // Otos_l: val | |
| 794 // O3: array | |
| 795 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 796 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
| 797 } | |
| 798 | |
| 799 | |
| 800 void TemplateTable::fastore() { | |
| 801 transition(ftos, vtos); | |
| 802 __ pop_i(O2); // index | |
| 803 // Ftos_f: val | |
| 804 // O3: array | |
| 805 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 806 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
| 807 } | |
| 808 | |
| 809 | |
| 810 void TemplateTable::dastore() { | |
| 811 transition(dtos, vtos); | |
| 812 __ pop_i(O2); // index | |
| 813 // Fos_d: val | |
| 814 // O3: array | |
| 815 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 816 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
| 817 } | |
| 818 | |
| 819 | |
| 820 void TemplateTable::aastore() { | |
| 821 Label store_ok, is_null, done; | |
| 822 transition(vtos, vtos); | |
| 823 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 824 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
| 825 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
| 826 // Otos_i: val | |
| 827 // O2: index | |
| 828 // O3: array | |
| 829 __ verify_oop(Otos_i); | |
|
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830 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
| 0 | 831 |
| 832 // do array store check - check for NULL value first | |
| 833 __ br_null( Otos_i, false, Assembler::pn, is_null ); | |
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834 __ delayed()->nop(); |
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835 |
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836 __ load_klass(O3, O4); // get array klass |
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837 __ load_klass(Otos_i, O5); // get value klass |
| 0 | 838 |
| 839 // do fast instanceof cache test | |
| 840 | |
| 841 __ ld_ptr(O4, sizeof(oopDesc) + objArrayKlass::element_klass_offset_in_bytes(), O4); | |
| 842 | |
| 843 assert(Otos_i == O0, "just checking"); | |
| 844 | |
| 845 // Otos_i: value | |
| 846 // O1: addr - offset | |
| 847 // O2: index | |
| 848 // O3: array | |
| 849 // O4: array element klass | |
| 850 // O5: value klass | |
| 851 | |
|
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852 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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853 |
| 0 | 854 // Generate a fast subtype check. Branch to store_ok if no |
| 855 // failure. Throw if failure. | |
| 856 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
| 857 | |
| 858 // Not a subtype; so must throw exception | |
| 859 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
| 860 | |
| 861 // Store is OK. | |
| 862 __ bind(store_ok); | |
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863 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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864 |
| 0 | 865 __ ba(false,done); |
| 1506 | 866 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 867 |
| 868 __ bind(is_null); | |
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869 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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870 |
| 0 | 871 __ profile_null_seen(G3_scratch); |
| 1506 | 872 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 873 __ bind(done); |
| 874 } | |
| 875 | |
| 876 | |
| 877 void TemplateTable::bastore() { | |
| 878 transition(itos, vtos); | |
| 879 __ pop_i(O2); // index | |
| 880 // Otos_i: val | |
| 881 // O3: array | |
| 882 __ index_check(O3, O2, 0, G3_scratch, O2); | |
| 883 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
| 884 } | |
| 885 | |
| 886 | |
| 887 void TemplateTable::castore() { | |
| 888 transition(itos, vtos); | |
| 889 __ pop_i(O2); // index | |
| 890 // Otos_i: val | |
| 891 // O3: array | |
| 892 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
| 893 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
| 894 } | |
| 895 | |
| 896 | |
| 897 void TemplateTable::sastore() { | |
| 898 // %%%%% Factor across platform | |
| 899 castore(); | |
| 900 } | |
| 901 | |
| 902 | |
| 903 void TemplateTable::istore(int n) { | |
| 904 transition(itos, vtos); | |
| 905 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 906 } | |
| 907 | |
| 908 | |
| 909 void TemplateTable::lstore(int n) { | |
| 910 transition(ltos, vtos); | |
| 911 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
| 912 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 913 | |
| 914 } | |
| 915 | |
| 916 | |
| 917 void TemplateTable::fstore(int n) { | |
| 918 transition(ftos, vtos); | |
| 919 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
| 920 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 921 } | |
| 922 | |
| 923 | |
| 924 void TemplateTable::dstore(int n) { | |
| 925 transition(dtos, vtos); | |
| 926 FloatRegister src = Ftos_d; | |
| 927 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 928 } | |
| 929 | |
| 930 | |
| 931 void TemplateTable::astore(int n) { | |
| 932 transition(vtos, vtos); | |
| 1506 | 933 __ load_ptr(0, Otos_i); |
| 934 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 935 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 1506 | 936 __ store_local_ptr(n, Otos_i); |
| 0 | 937 } |
| 938 | |
| 939 | |
| 940 void TemplateTable::pop() { | |
| 941 transition(vtos, vtos); | |
| 1506 | 942 __ inc(Lesp, Interpreter::stackElementSize); |
| 0 | 943 } |
| 944 | |
| 945 | |
| 946 void TemplateTable::pop2() { | |
| 947 transition(vtos, vtos); | |
| 1506 | 948 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
| 0 | 949 } |
| 950 | |
| 951 | |
| 952 void TemplateTable::dup() { | |
| 953 transition(vtos, vtos); | |
| 954 // stack: ..., a | |
| 955 // load a and tag | |
| 1506 | 956 __ load_ptr(0, Otos_i); |
| 957 __ push_ptr(Otos_i); | |
| 0 | 958 // stack: ..., a, a |
| 959 } | |
| 960 | |
| 961 | |
| 962 void TemplateTable::dup_x1() { | |
| 963 transition(vtos, vtos); | |
| 964 // stack: ..., a, b | |
| 1506 | 965 __ load_ptr( 1, G3_scratch); // get a |
| 966 __ load_ptr( 0, Otos_l1); // get b | |
| 967 __ store_ptr(1, Otos_l1); // put b | |
| 968 __ store_ptr(0, G3_scratch); // put a - like swap | |
| 969 __ push_ptr(Otos_l1); // push b | |
| 0 | 970 // stack: ..., b, a, b |
| 971 } | |
| 972 | |
| 973 | |
| 974 void TemplateTable::dup_x2() { | |
| 975 transition(vtos, vtos); | |
| 976 // stack: ..., a, b, c | |
| 977 // get c and push on stack, reuse registers | |
| 1506 | 978 __ load_ptr( 0, G3_scratch); // get c |
| 979 __ push_ptr(G3_scratch); // push c with tag | |
| 0 | 980 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
| 981 // (stack offsets n+1 now) | |
| 1506 | 982 __ load_ptr( 3, Otos_l1); // get a |
| 983 __ store_ptr(3, G3_scratch); // put c at 3 | |
| 0 | 984 // stack: ..., c, b, c, c (a in reg) |
| 1506 | 985 __ load_ptr( 2, G3_scratch); // get b |
| 986 __ store_ptr(2, Otos_l1); // put a at 2 | |
| 0 | 987 // stack: ..., c, a, c, c (b in reg) |
| 1506 | 988 __ store_ptr(1, G3_scratch); // put b at 1 |
| 0 | 989 // stack: ..., c, a, b, c |
| 990 } | |
| 991 | |
| 992 | |
| 993 void TemplateTable::dup2() { | |
| 994 transition(vtos, vtos); | |
| 1506 | 995 __ load_ptr(1, G3_scratch); // get a |
| 996 __ load_ptr(0, Otos_l1); // get b | |
| 997 __ push_ptr(G3_scratch); // push a | |
| 998 __ push_ptr(Otos_l1); // push b | |
| 0 | 999 // stack: ..., a, b, a, b |
| 1000 } | |
| 1001 | |
| 1002 | |
| 1003 void TemplateTable::dup2_x1() { | |
| 1004 transition(vtos, vtos); | |
| 1005 // stack: ..., a, b, c | |
| 1506 | 1006 __ load_ptr( 1, Lscratch); // get b |
| 1007 __ load_ptr( 2, Otos_l1); // get a | |
| 1008 __ store_ptr(2, Lscratch); // put b at a | |
| 0 | 1009 // stack: ..., b, b, c |
| 1506 | 1010 __ load_ptr( 0, G3_scratch); // get c |
| 1011 __ store_ptr(1, G3_scratch); // put c at b | |
| 0 | 1012 // stack: ..., b, c, c |
| 1506 | 1013 __ store_ptr(0, Otos_l1); // put a at c |
| 0 | 1014 // stack: ..., b, c, a |
| 1506 | 1015 __ push_ptr(Lscratch); // push b |
| 1016 __ push_ptr(G3_scratch); // push c | |
| 0 | 1017 // stack: ..., b, c, a, b, c |
| 1018 } | |
| 1019 | |
| 1020 | |
| 1021 // The spec says that these types can be a mixture of category 1 (1 word) | |
| 1022 // types and/or category 2 types (long and doubles) | |
| 1023 void TemplateTable::dup2_x2() { | |
| 1024 transition(vtos, vtos); | |
| 1025 // stack: ..., a, b, c, d | |
| 1506 | 1026 __ load_ptr( 1, Lscratch); // get c |
| 1027 __ load_ptr( 3, Otos_l1); // get a | |
| 1028 __ store_ptr(3, Lscratch); // put c at 3 | |
| 1029 __ store_ptr(1, Otos_l1); // put a at 1 | |
| 0 | 1030 // stack: ..., c, b, a, d |
| 1506 | 1031 __ load_ptr( 2, G3_scratch); // get b |
| 1032 __ load_ptr( 0, Otos_l1); // get d | |
| 1033 __ store_ptr(0, G3_scratch); // put b at 0 | |
| 1034 __ store_ptr(2, Otos_l1); // put d at 2 | |
| 0 | 1035 // stack: ..., c, d, a, b |
| 1506 | 1036 __ push_ptr(Lscratch); // push c |
| 1037 __ push_ptr(Otos_l1); // push d | |
| 0 | 1038 // stack: ..., c, d, a, b, c, d |
| 1039 } | |
| 1040 | |
| 1041 | |
| 1042 void TemplateTable::swap() { | |
| 1043 transition(vtos, vtos); | |
| 1044 // stack: ..., a, b | |
| 1506 | 1045 __ load_ptr( 1, G3_scratch); // get a |
| 1046 __ load_ptr( 0, Otos_l1); // get b | |
| 1047 __ store_ptr(0, G3_scratch); // put b | |
| 1048 __ store_ptr(1, Otos_l1); // put a | |
| 0 | 1049 // stack: ..., b, a |
| 1050 } | |
| 1051 | |
| 1052 | |
| 1053 void TemplateTable::iop2(Operation op) { | |
| 1054 transition(itos, itos); | |
| 1055 __ pop_i(O1); | |
| 1056 switch (op) { | |
| 1057 case add: __ add(O1, Otos_i, Otos_i); break; | |
| 1058 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
| 1059 // %%%%% Mul may not exist: better to call .mul? | |
| 1060 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
| 1506 | 1061 case _and: __ and3(O1, Otos_i, Otos_i); break; |
| 1062 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
| 1063 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
| 0 | 1064 case shl: __ sll(O1, Otos_i, Otos_i); break; |
| 1065 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
| 1066 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
| 1067 default: ShouldNotReachHere(); | |
| 1068 } | |
| 1069 } | |
| 1070 | |
| 1071 | |
| 1072 void TemplateTable::lop2(Operation op) { | |
| 1073 transition(ltos, ltos); | |
| 1074 __ pop_l(O2); | |
| 1075 switch (op) { | |
| 1076 #ifdef _LP64 | |
| 1506 | 1077 case add: __ add(O2, Otos_l, Otos_l); break; |
| 1078 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
| 1079 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
| 1080 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
| 1081 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
| 0 | 1082 #else |
| 1083 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
| 1084 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
| 1506 | 1085 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
| 1086 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
| 1087 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
| 0 | 1088 #endif |
| 1089 default: ShouldNotReachHere(); | |
| 1090 } | |
| 1091 } | |
| 1092 | |
| 1093 | |
| 1094 void TemplateTable::idiv() { | |
| 1095 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
| 1096 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
| 1097 | |
| 1098 transition(itos, itos); | |
| 1099 __ pop_i(O1); // get 1st op | |
| 1100 | |
| 1101 // Y contains upper 32 bits of result, set it to 0 or all ones | |
| 1102 __ wry(G0); | |
| 1103 __ mov(~0, G3_scratch); | |
| 1104 | |
| 1105 __ tst(O1); | |
| 1106 Label neg; | |
| 1107 __ br(Assembler::negative, true, Assembler::pn, neg); | |
| 1108 __ delayed()->wry(G3_scratch); | |
| 1109 __ bind(neg); | |
| 1110 | |
| 1111 Label ok; | |
| 1112 __ tst(Otos_i); | |
| 1113 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
| 1114 | |
| 1115 const int min_int = 0x80000000; | |
| 1116 Label regular; | |
| 1117 __ cmp(Otos_i, -1); | |
| 1118 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
| 1119 #ifdef _LP64 | |
| 1120 // Don't put set in delay slot | |
| 1121 // Set will turn into multiple instructions in 64 bit mode | |
| 1122 __ delayed()->nop(); | |
| 1123 __ set(min_int, G4_scratch); | |
| 1124 #else | |
| 1125 __ delayed()->set(min_int, G4_scratch); | |
| 1126 #endif | |
| 1127 Label done; | |
| 1128 __ cmp(O1, G4_scratch); | |
| 1129 __ br(Assembler::equal, true, Assembler::pt, done); | |
| 1130 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
| 1131 | |
| 1132 __ bind(regular); | |
| 1133 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
| 1134 __ bind(done); | |
| 1135 } | |
| 1136 | |
| 1137 | |
| 1138 void TemplateTable::irem() { | |
| 1139 transition(itos, itos); | |
| 1140 __ mov(Otos_i, O2); // save divisor | |
| 1141 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
| 1142 __ smul(Otos_i, O2, Otos_i); | |
| 1143 __ sub(O1, Otos_i, Otos_i); | |
| 1144 } | |
| 1145 | |
| 1146 | |
| 1147 void TemplateTable::lmul() { | |
| 1148 transition(ltos, ltos); | |
| 1149 __ pop_l(O2); | |
| 1150 #ifdef _LP64 | |
| 1151 __ mulx(Otos_l, O2, Otos_l); | |
| 1152 #else | |
| 1153 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
| 1154 #endif | |
| 1155 | |
| 1156 } | |
| 1157 | |
| 1158 | |
| 1159 void TemplateTable::ldiv() { | |
| 1160 transition(ltos, ltos); | |
| 1161 | |
| 1162 // check for zero | |
| 1163 __ pop_l(O2); | |
| 1164 #ifdef _LP64 | |
| 1165 __ tst(Otos_l); | |
| 1166 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1167 __ sdivx(O2, Otos_l, Otos_l); | |
| 1168 #else | |
| 1169 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1170 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1171 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 1172 #endif | |
| 1173 } | |
| 1174 | |
| 1175 | |
| 1176 void TemplateTable::lrem() { | |
| 1177 transition(ltos, ltos); | |
| 1178 | |
| 1179 // check for zero | |
| 1180 __ pop_l(O2); | |
| 1181 #ifdef _LP64 | |
| 1182 __ tst(Otos_l); | |
| 1183 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1184 __ sdivx(O2, Otos_l, Otos_l2); | |
| 1185 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
| 1186 __ sub (O2, Otos_l2, Otos_l); | |
| 1187 #else | |
| 1188 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1189 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1190 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 1191 #endif | |
| 1192 } | |
| 1193 | |
| 1194 | |
| 1195 void TemplateTable::lshl() { | |
| 1196 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
| 1197 | |
| 1198 __ pop_l(O2); // shift value in O2, O3 | |
| 1199 #ifdef _LP64 | |
| 1200 __ sllx(O2, Otos_i, Otos_l); | |
| 1201 #else | |
| 1202 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1203 #endif | |
| 1204 } | |
| 1205 | |
| 1206 | |
| 1207 void TemplateTable::lshr() { | |
| 1208 transition(itos, ltos); // %%%% see lshl comment | |
| 1209 | |
| 1210 __ pop_l(O2); // shift value in O2, O3 | |
| 1211 #ifdef _LP64 | |
| 1212 __ srax(O2, Otos_i, Otos_l); | |
| 1213 #else | |
| 1214 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1215 #endif | |
| 1216 } | |
| 1217 | |
| 1218 | |
| 1219 | |
| 1220 void TemplateTable::lushr() { | |
| 1221 transition(itos, ltos); // %%%% see lshl comment | |
| 1222 | |
| 1223 __ pop_l(O2); // shift value in O2, O3 | |
| 1224 #ifdef _LP64 | |
| 1225 __ srlx(O2, Otos_i, Otos_l); | |
| 1226 #else | |
| 1227 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1228 #endif | |
| 1229 } | |
| 1230 | |
| 1231 | |
| 1232 void TemplateTable::fop2(Operation op) { | |
| 1233 transition(ftos, ftos); | |
| 1234 switch (op) { | |
| 1235 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1236 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1237 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1238 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1239 case rem: | |
| 1240 assert(Ftos_f == F0, "just checking"); | |
| 1241 #ifdef _LP64 | |
| 1242 // LP64 calling conventions use F1, F3 for passing 2 floats | |
| 1243 __ pop_f(F1); | |
| 1244 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
| 1245 #else | |
| 1246 __ pop_i(O0); | |
| 1247 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
| 1248 __ ld( __ d_tmp, O1 ); | |
| 1249 #endif | |
| 1250 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
| 1251 assert( Ftos_f == F0, "fix this code" ); | |
| 1252 break; | |
| 1253 | |
| 1254 default: ShouldNotReachHere(); | |
| 1255 } | |
| 1256 } | |
| 1257 | |
| 1258 | |
| 1259 void TemplateTable::dop2(Operation op) { | |
| 1260 transition(dtos, dtos); | |
| 1261 switch (op) { | |
| 1262 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1263 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1264 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1265 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1266 case rem: | |
| 1267 #ifdef _LP64 | |
| 1268 // Pass arguments in D0, D2 | |
| 1269 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
| 1270 __ pop_d( F0 ); | |
| 1271 #else | |
| 1272 // Pass arguments in O0O1, O2O3 | |
| 1273 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1274 __ ldd( __ d_tmp, O2 ); | |
| 1275 __ pop_d(Ftos_f); | |
| 1276 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1277 __ ldd( __ d_tmp, O0 ); | |
| 1278 #endif | |
| 1279 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
| 1280 assert( Ftos_d == F0, "fix this code" ); | |
| 1281 break; | |
| 1282 | |
| 1283 default: ShouldNotReachHere(); | |
| 1284 } | |
| 1285 } | |
| 1286 | |
| 1287 | |
| 1288 void TemplateTable::ineg() { | |
| 1289 transition(itos, itos); | |
| 1290 __ neg(Otos_i); | |
| 1291 } | |
| 1292 | |
| 1293 | |
| 1294 void TemplateTable::lneg() { | |
| 1295 transition(ltos, ltos); | |
| 1296 #ifdef _LP64 | |
| 1297 __ sub(G0, Otos_l, Otos_l); | |
| 1298 #else | |
| 1299 __ lneg(Otos_l1, Otos_l2); | |
| 1300 #endif | |
| 1301 } | |
| 1302 | |
| 1303 | |
| 1304 void TemplateTable::fneg() { | |
| 1305 transition(ftos, ftos); | |
| 1306 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
| 1307 } | |
| 1308 | |
| 1309 | |
| 1310 void TemplateTable::dneg() { | |
| 1311 transition(dtos, dtos); | |
| 1312 // v8 has fnegd if source and dest are the same | |
| 1313 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
| 1314 } | |
| 1315 | |
| 1316 | |
| 1317 void TemplateTable::iinc() { | |
| 1318 transition(vtos, vtos); | |
| 1319 locals_index(G3_scratch); | |
| 1320 __ ldsb(Lbcp, 2, O2); // load constant | |
| 1321 __ access_local_int(G3_scratch, Otos_i); | |
| 1322 __ add(Otos_i, O2, Otos_i); | |
| 1506 | 1323 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1324 } |
| 1325 | |
| 1326 | |
| 1327 void TemplateTable::wide_iinc() { | |
| 1328 transition(vtos, vtos); | |
| 1329 locals_index_wide(G3_scratch); | |
| 1330 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
| 1331 __ access_local_int(G3_scratch, Otos_i); | |
| 1332 __ add(Otos_i, O3, Otos_i); | |
| 1506 | 1333 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1334 } |
| 1335 | |
| 1336 | |
| 1337 void TemplateTable::convert() { | |
| 1338 // %%%%% Factor this first part accross platforms | |
| 1339 #ifdef ASSERT | |
| 1340 TosState tos_in = ilgl; | |
| 1341 TosState tos_out = ilgl; | |
| 1342 switch (bytecode()) { | |
| 1343 case Bytecodes::_i2l: // fall through | |
| 1344 case Bytecodes::_i2f: // fall through | |
| 1345 case Bytecodes::_i2d: // fall through | |
| 1346 case Bytecodes::_i2b: // fall through | |
| 1347 case Bytecodes::_i2c: // fall through | |
| 1348 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1349 case Bytecodes::_l2i: // fall through | |
| 1350 case Bytecodes::_l2f: // fall through | |
| 1351 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1352 case Bytecodes::_f2i: // fall through | |
| 1353 case Bytecodes::_f2l: // fall through | |
| 1354 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1355 case Bytecodes::_d2i: // fall through | |
| 1356 case Bytecodes::_d2l: // fall through | |
| 1357 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1358 default : ShouldNotReachHere(); | |
| 1359 } | |
| 1360 switch (bytecode()) { | |
| 1361 case Bytecodes::_l2i: // fall through | |
| 1362 case Bytecodes::_f2i: // fall through | |
| 1363 case Bytecodes::_d2i: // fall through | |
| 1364 case Bytecodes::_i2b: // fall through | |
| 1365 case Bytecodes::_i2c: // fall through | |
| 1366 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1367 case Bytecodes::_i2l: // fall through | |
| 1368 case Bytecodes::_f2l: // fall through | |
| 1369 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1370 case Bytecodes::_i2f: // fall through | |
| 1371 case Bytecodes::_l2f: // fall through | |
| 1372 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1373 case Bytecodes::_i2d: // fall through | |
| 1374 case Bytecodes::_l2d: // fall through | |
| 1375 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1376 default : ShouldNotReachHere(); | |
| 1377 } | |
| 1378 transition(tos_in, tos_out); | |
| 1379 #endif | |
| 1380 | |
| 1381 | |
| 1382 // Conversion | |
| 1383 Label done; | |
| 1384 switch (bytecode()) { | |
| 1385 case Bytecodes::_i2l: | |
| 1386 #ifdef _LP64 | |
| 1387 // Sign extend the 32 bits | |
| 1388 __ sra ( Otos_i, 0, Otos_l ); | |
| 1389 #else | |
| 1390 __ addcc(Otos_i, 0, Otos_l2); | |
| 1391 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
| 1392 __ delayed()->clr(Otos_l1); | |
| 1393 __ set(~0, Otos_l1); | |
| 1394 #endif | |
| 1395 break; | |
| 1396 | |
| 1397 case Bytecodes::_i2f: | |
| 1398 __ st(Otos_i, __ d_tmp ); | |
| 1399 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1400 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
| 1401 break; | |
| 1402 | |
| 1403 case Bytecodes::_i2d: | |
| 1404 __ st(Otos_i, __ d_tmp); | |
| 1405 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1406 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
| 1407 break; | |
| 1408 | |
| 1409 case Bytecodes::_i2b: | |
| 1410 __ sll(Otos_i, 24, Otos_i); | |
| 1411 __ sra(Otos_i, 24, Otos_i); | |
| 1412 break; | |
| 1413 | |
| 1414 case Bytecodes::_i2c: | |
| 1415 __ sll(Otos_i, 16, Otos_i); | |
| 1416 __ srl(Otos_i, 16, Otos_i); | |
| 1417 break; | |
| 1418 | |
| 1419 case Bytecodes::_i2s: | |
| 1420 __ sll(Otos_i, 16, Otos_i); | |
| 1421 __ sra(Otos_i, 16, Otos_i); | |
| 1422 break; | |
| 1423 | |
| 1424 case Bytecodes::_l2i: | |
| 1425 #ifndef _LP64 | |
| 1426 __ mov(Otos_l2, Otos_i); | |
| 1427 #else | |
| 1428 // Sign-extend into the high 32 bits | |
| 1429 __ sra(Otos_l, 0, Otos_i); | |
| 1430 #endif | |
| 1431 break; | |
| 1432 | |
| 1433 case Bytecodes::_l2f: | |
| 1434 case Bytecodes::_l2d: | |
| 1435 __ st_long(Otos_l, __ d_tmp); | |
| 1436 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
| 1437 | |
| 1438 if (VM_Version::v9_instructions_work()) { | |
| 1439 if (bytecode() == Bytecodes::_l2f) { | |
| 1440 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1441 } else { | |
| 1442 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
| 1443 } | |
| 1444 } else { | |
| 1445 __ call_VM_leaf( | |
| 1446 Lscratch, | |
| 1447 bytecode() == Bytecodes::_l2f | |
| 1448 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
| 1449 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
| 1450 ); | |
| 1451 } | |
| 1452 break; | |
| 1453 | |
| 1454 case Bytecodes::_f2i: { | |
| 1455 Label isNaN; | |
| 1456 // result must be 0 if value is NaN; test by comparing value to itself | |
| 1457 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
| 1458 // According to the v8 manual, you have to have a non-fp instruction | |
| 1459 // between fcmp and fb. | |
| 1460 if (!VM_Version::v9_instructions_work()) { | |
| 1461 __ nop(); | |
| 1462 } | |
| 1463 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
| 1464 __ delayed()->clr(Otos_i); // NaN | |
| 1465 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
| 1466 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
| 1467 __ ld(__ d_tmp, Otos_i); | |
| 1468 __ bind(isNaN); | |
| 1469 } | |
| 1470 break; | |
| 1471 | |
| 1472 case Bytecodes::_f2l: | |
| 1473 // must uncache tos | |
| 1474 __ push_f(); | |
| 1475 #ifdef _LP64 | |
| 1476 __ pop_f(F1); | |
| 1477 #else | |
| 1478 __ pop_i(O0); | |
| 1479 #endif | |
| 1480 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
| 1481 break; | |
| 1482 | |
| 1483 case Bytecodes::_f2d: | |
| 1484 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
| 1485 break; | |
| 1486 | |
| 1487 case Bytecodes::_d2i: | |
| 1488 case Bytecodes::_d2l: | |
| 1489 // must uncache tos | |
| 1490 __ push_d(); | |
| 1491 #ifdef _LP64 | |
| 1492 // LP64 calling conventions pass first double arg in D0 | |
| 1493 __ pop_d( Ftos_d ); | |
| 1494 #else | |
| 1495 __ pop_i( O0 ); | |
| 1496 __ pop_i( O1 ); | |
| 1497 #endif | |
| 1498 __ call_VM_leaf(Lscratch, | |
| 1499 bytecode() == Bytecodes::_d2i | |
| 1500 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
| 1501 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
| 1502 break; | |
| 1503 | |
| 1504 case Bytecodes::_d2f: | |
| 1505 if (VM_Version::v9_instructions_work()) { | |
| 1506 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1507 } | |
| 1508 else { | |
| 1509 // must uncache tos | |
| 1510 __ push_d(); | |
| 1511 __ pop_i(O0); | |
| 1512 __ pop_i(O1); | |
| 1513 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
| 1514 } | |
| 1515 break; | |
| 1516 | |
| 1517 default: ShouldNotReachHere(); | |
| 1518 } | |
| 1519 __ bind(done); | |
| 1520 } | |
| 1521 | |
| 1522 | |
| 1523 void TemplateTable::lcmp() { | |
| 1524 transition(ltos, itos); | |
| 1525 | |
| 1526 #ifdef _LP64 | |
| 1527 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
| 1528 __ lcmp( O1, Otos_l, Otos_i ); | |
| 1529 #else | |
| 1530 __ pop_l(O2); // cmp O2,3 to O0,1 | |
| 1531 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
| 1532 #endif | |
| 1533 } | |
| 1534 | |
| 1535 | |
| 1536 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1537 | |
| 1538 if (is_float) __ pop_f(F2); | |
| 1539 else __ pop_d(F2); | |
| 1540 | |
| 1541 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
| 1542 | |
| 1543 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
| 1544 } | |
| 1545 | |
| 1546 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1547 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
| 1548 __ verify_oop(Lmethod); | |
| 1549 __ verify_thread(); | |
| 1550 | |
| 1551 const Register O2_bumped_count = O2; | |
| 1552 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
| 1553 | |
| 1554 // get (wide) offset to O1_disp | |
| 1555 const Register O1_disp = O1; | |
| 1556 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
| 1557 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
| 1558 | |
| 1559 // Handle all the JSR stuff here, then exit. | |
| 1560 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1561 // non-JSR normal-branch stuff occurring below. |
| 0 | 1562 if( is_jsr ) { |
| 1563 // compute return address as bci in Otos_i | |
| 727 | 1564 __ ld_ptr(Lmethod, methodOopDesc::const_offset(), G3_scratch); |
| 0 | 1565 __ sub(Lbcp, G3_scratch, G3_scratch); |
| 1566 __ sub(G3_scratch, in_bytes(constMethodOopDesc::codes_offset()) - (is_wide ? 5 : 3), Otos_i); | |
| 1567 | |
| 1568 // Bump Lbcp to target of JSR | |
| 1569 __ add(Lbcp, O1_disp, Lbcp); | |
| 1570 // Push returnAddress for "ret" on stack | |
| 1506 | 1571 __ push_ptr(Otos_i); |
| 0 | 1572 // And away we go! |
| 1573 __ dispatch_next(vtos); | |
| 1574 return; | |
| 1575 } | |
| 1576 | |
| 1577 // Normal (non-jsr) branch handling | |
| 1578 | |
| 1579 // Save the current Lbcp | |
| 1580 const Register O0_cur_bcp = O0; | |
| 1581 __ mov( Lbcp, O0_cur_bcp ); | |
| 1582 | |
| 1583 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; | |
| 1584 if ( increment_invocation_counter_for_backward_branches ) { | |
| 1585 Label Lforward; | |
| 1586 // check branch direction | |
| 1587 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
| 1588 // Bump bytecode pointer by displacement (take the branch) | |
| 1589 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
| 1590 | |
| 1591 // Update Backedge branch separately from invocations | |
| 1592 const Register G4_invoke_ctr = G4; | |
| 1593 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
| 1594 if (ProfileInterpreter) { | |
| 1595 __ test_invocation_counter_for_mdp(G4_invoke_ctr, Lbcp, G3_scratch, Lforward); | |
| 1596 if (UseOnStackReplacement) { | |
| 1597 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
| 1598 } | |
| 1599 } else { | |
| 1600 if (UseOnStackReplacement) { | |
| 1601 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
| 1602 } | |
| 1603 } | |
| 1604 | |
| 1605 __ bind(Lforward); | |
| 1606 } else | |
| 1607 // Bump bytecode pointer by displacement (take the branch) | |
| 1608 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
| 1609 | |
| 1610 // continue with bytecode @ target | |
| 1611 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
| 1612 // %%%%% and changing dispatch_next to dispatch_only | |
| 1613 __ dispatch_next(vtos); | |
| 1614 } | |
| 1615 | |
| 1616 | |
| 1617 // Note Condition in argument is TemplateTable::Condition | |
| 1618 // arg scope is within class scope | |
| 1619 | |
| 1620 void TemplateTable::if_0cmp(Condition cc) { | |
| 1621 // no pointers, integer only! | |
| 1622 transition(itos, vtos); | |
| 1623 // assume branch is more often taken than not (loops use backward branches) | |
| 1624 __ cmp( Otos_i, 0); | |
| 1625 __ if_cmp(ccNot(cc), false); | |
| 1626 } | |
| 1627 | |
| 1628 | |
| 1629 void TemplateTable::if_icmp(Condition cc) { | |
| 1630 transition(itos, vtos); | |
| 1631 __ pop_i(O1); | |
| 1632 __ cmp(O1, Otos_i); | |
| 1633 __ if_cmp(ccNot(cc), false); | |
| 1634 } | |
| 1635 | |
| 1636 | |
| 1637 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1638 transition(atos, vtos); | |
| 1639 __ tst(Otos_i); | |
| 1640 __ if_cmp(ccNot(cc), true); | |
| 1641 } | |
| 1642 | |
| 1643 | |
| 1644 void TemplateTable::if_acmp(Condition cc) { | |
| 1645 transition(atos, vtos); | |
| 1646 __ pop_ptr(O1); | |
| 1647 __ verify_oop(O1); | |
| 1648 __ verify_oop(Otos_i); | |
| 1649 __ cmp(O1, Otos_i); | |
| 1650 __ if_cmp(ccNot(cc), true); | |
| 1651 } | |
| 1652 | |
| 1653 | |
| 1654 | |
| 1655 void TemplateTable::ret() { | |
| 1656 transition(vtos, vtos); | |
| 1657 locals_index(G3_scratch); | |
| 1658 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1659 // Otos_i contains the bci, compute the bcp from that | |
| 1660 | |
| 1661 #ifdef _LP64 | |
| 1662 #ifdef ASSERT | |
| 1663 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
| 1664 // the result. The return address (really a BCI) was stored with an | |
| 1665 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
| 1666 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
| 1667 // loaded value. | |
| 1668 { Label zzz ; | |
| 1669 __ set (65536, G3_scratch) ; | |
| 1670 __ cmp (Otos_i, G3_scratch) ; | |
| 1671 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
| 1672 __ delayed()->nop(); | |
| 1673 __ stop("BCI is in the wrong register half?"); | |
| 1674 __ bind (zzz) ; | |
| 1675 } | |
| 1676 #endif | |
| 1677 #endif | |
| 1678 | |
| 1679 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1680 | |
| 727 | 1681 __ ld_ptr(Lmethod, methodOopDesc::const_offset(), G3_scratch); |
| 0 | 1682 __ add(G3_scratch, Otos_i, G3_scratch); |
| 1683 __ add(G3_scratch, in_bytes(constMethodOopDesc::codes_offset()), Lbcp); | |
| 1684 __ dispatch_next(vtos); | |
| 1685 } | |
| 1686 | |
| 1687 | |
| 1688 void TemplateTable::wide_ret() { | |
| 1689 transition(vtos, vtos); | |
| 1690 locals_index_wide(G3_scratch); | |
| 1691 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1692 // Otos_i contains the bci, compute the bcp from that | |
| 1693 | |
| 1694 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1695 | |
| 727 | 1696 __ ld_ptr(Lmethod, methodOopDesc::const_offset(), G3_scratch); |
| 0 | 1697 __ add(G3_scratch, Otos_i, G3_scratch); |
| 1698 __ add(G3_scratch, in_bytes(constMethodOopDesc::codes_offset()), Lbcp); | |
| 1699 __ dispatch_next(vtos); | |
| 1700 } | |
| 1701 | |
| 1702 | |
| 1703 void TemplateTable::tableswitch() { | |
| 1704 transition(itos, vtos); | |
| 1705 Label default_case, continue_execution; | |
| 1706 | |
| 1707 // align bcp | |
| 1708 __ add(Lbcp, BytesPerInt, O1); | |
| 1709 __ and3(O1, -BytesPerInt, O1); | |
| 1710 // load lo, hi | |
| 1711 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
| 1712 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
| 1713 #ifdef _LP64 | |
| 1714 // Sign extend the 32 bits | |
| 1715 __ sra ( Otos_i, 0, Otos_i ); | |
| 1716 #endif /* _LP64 */ | |
| 1717 | |
| 1718 // check against lo & hi | |
| 1719 __ cmp( Otos_i, O2); | |
| 1720 __ br( Assembler::less, false, Assembler::pn, default_case); | |
| 1721 __ delayed()->cmp( Otos_i, O3 ); | |
| 1722 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
| 1723 // lookup dispatch offset | |
| 1724 __ delayed()->sub(Otos_i, O2, O2); | |
| 1725 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
| 1726 __ sll(O2, LogBytesPerInt, O2); | |
| 1727 __ add(O2, 3 * BytesPerInt, O2); | |
| 1728 __ ba(false, continue_execution); | |
| 1729 __ delayed()->ld(O1, O2, O2); | |
| 1730 // handle default | |
| 1731 __ bind(default_case); | |
| 1732 __ profile_switch_default(O3); | |
| 1733 __ ld(O1, 0, O2); // get default offset | |
| 1734 // continue execution | |
| 1735 __ bind(continue_execution); | |
| 1736 __ add(Lbcp, O2, Lbcp); | |
| 1737 __ dispatch_next(vtos); | |
| 1738 } | |
| 1739 | |
| 1740 | |
| 1741 void TemplateTable::lookupswitch() { | |
| 1742 transition(itos, itos); | |
| 1743 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1744 } | |
| 1745 | |
| 1746 void TemplateTable::fast_linearswitch() { | |
| 1747 transition(itos, vtos); | |
| 1748 Label loop_entry, loop, found, continue_execution; | |
| 1749 // align bcp | |
| 1750 __ add(Lbcp, BytesPerInt, O1); | |
| 1751 __ and3(O1, -BytesPerInt, O1); | |
| 1752 // set counter | |
| 1753 __ ld(O1, BytesPerInt, O2); | |
| 1754 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
| 1755 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
| 1756 __ ba(false, loop_entry); | |
| 1757 __ delayed()->add(O3, O2, O2); // counter now points past last pair | |
| 1758 | |
| 1759 // table search | |
| 1760 __ bind(loop); | |
| 1761 __ cmp(O4, Otos_i); | |
| 1762 __ br(Assembler::equal, true, Assembler::pn, found); | |
| 1763 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
| 1764 __ inc(O3, 2 * BytesPerInt); | |
| 1765 | |
| 1766 __ bind(loop_entry); | |
| 1767 __ cmp(O2, O3); | |
| 1768 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
| 1769 __ delayed()->ld(O3, 0, O4); | |
| 1770 | |
| 1771 // default case | |
| 1772 __ ld(O1, 0, O4); // get default offset | |
| 1773 if (ProfileInterpreter) { | |
| 1774 __ profile_switch_default(O3); | |
| 1775 __ ba(false, continue_execution); | |
| 1776 __ delayed()->nop(); | |
| 1777 } | |
| 1778 | |
| 1779 // entry found -> get offset | |
| 1780 __ bind(found); | |
| 1781 if (ProfileInterpreter) { | |
| 1782 __ sub(O3, O1, O3); | |
| 1783 __ sub(O3, 2*BytesPerInt, O3); | |
| 1784 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
| 1785 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
| 1786 | |
| 1787 __ bind(continue_execution); | |
| 1788 } | |
| 1789 __ add(Lbcp, O4, Lbcp); | |
| 1790 __ dispatch_next(vtos); | |
| 1791 } | |
| 1792 | |
| 1793 | |
| 1794 void TemplateTable::fast_binaryswitch() { | |
| 1795 transition(itos, vtos); | |
| 1796 // Implementation using the following core algorithm: (copied from Intel) | |
| 1797 // | |
| 1798 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1799 // // Binary search according to "Methodik des Programmierens" by | |
| 1800 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1801 // int i = 0; | |
| 1802 // int j = n; | |
| 1803 // while (i+1 < j) { | |
| 1804 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1805 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1806 // // where a stands for the array and assuming that the (inexisting) | |
| 1807 // // element a[n] is infinitely big. | |
| 1808 // int h = (i + j) >> 1; | |
| 1809 // // i < h < j | |
| 1810 // if (key < array[h].fast_match()) { | |
| 1811 // j = h; | |
| 1812 // } else { | |
| 1813 // i = h; | |
| 1814 // } | |
| 1815 // } | |
| 1816 // // R: a[i] <= key < a[i+1] or Q | |
| 1817 // // (i.e., if key is within array, i is the correct index) | |
| 1818 // return i; | |
| 1819 // } | |
| 1820 | |
| 1821 // register allocation | |
| 1822 assert(Otos_i == O0, "alias checking"); | |
| 1823 const Register Rkey = Otos_i; // already set (tosca) | |
| 1824 const Register Rarray = O1; | |
| 1825 const Register Ri = O2; | |
| 1826 const Register Rj = O3; | |
| 1827 const Register Rh = O4; | |
| 1828 const Register Rscratch = O5; | |
| 1829 | |
| 1830 const int log_entry_size = 3; | |
| 1831 const int entry_size = 1 << log_entry_size; | |
| 1832 | |
| 1833 Label found; | |
| 1834 // Find Array start | |
| 1835 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
| 1836 __ and3(Rarray, -BytesPerInt, Rarray); | |
| 1837 // initialize i & j (in delay slot) | |
| 1838 __ clr( Ri ); | |
| 1839 | |
| 1840 // and start | |
| 1841 Label entry; | |
| 1842 __ ba(false, entry); | |
| 1843 __ delayed()->ld( Rarray, -BytesPerInt, Rj); | |
| 1844 // (Rj is already in the native byte-ordering.) | |
| 1845 | |
| 1846 // binary search loop | |
| 1847 { Label loop; | |
| 1848 __ bind( loop ); | |
| 1849 // int h = (i + j) >> 1; | |
| 1850 __ sra( Rh, 1, Rh ); | |
| 1851 // if (key < array[h].fast_match()) { | |
| 1852 // j = h; | |
| 1853 // } else { | |
| 1854 // i = h; | |
| 1855 // } | |
| 1856 __ sll( Rh, log_entry_size, Rscratch ); | |
| 1857 __ ld( Rarray, Rscratch, Rscratch ); | |
| 1858 // (Rscratch is already in the native byte-ordering.) | |
| 1859 __ cmp( Rkey, Rscratch ); | |
| 1860 if ( VM_Version::v9_instructions_work() ) { | |
| 1861 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
| 1862 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
| 1863 } | |
| 1864 else { | |
| 1865 Label end_of_if; | |
| 1866 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
| 1867 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
| 1868 __ mov( Rh, Ri ); // else i = h | |
| 1869 __ bind(end_of_if); // } | |
| 1870 } | |
| 1871 | |
| 1872 // while (i+1 < j) | |
| 1873 __ bind( entry ); | |
| 1874 __ add( Ri, 1, Rscratch ); | |
| 1875 __ cmp(Rscratch, Rj); | |
| 1876 __ br( Assembler::less, true, Assembler::pt, loop ); | |
| 1877 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
| 1878 } | |
| 1879 | |
| 1880 // end of binary search, result index is i (must check again!) | |
| 1881 Label default_case; | |
| 1882 Label continue_execution; | |
| 1883 if (ProfileInterpreter) { | |
| 1884 __ mov( Ri, Rh ); // Save index in i for profiling | |
| 1885 } | |
| 1886 __ sll( Ri, log_entry_size, Ri ); | |
| 1887 __ ld( Rarray, Ri, Rscratch ); | |
| 1888 // (Rscratch is already in the native byte-ordering.) | |
| 1889 __ cmp( Rkey, Rscratch ); | |
| 1890 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
| 1891 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
| 1892 | |
| 1893 // entry found -> j = offset | |
| 1894 __ inc( Ri, BytesPerInt ); | |
| 1895 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
| 1896 __ ld( Rarray, Ri, Rj ); | |
| 1897 // (Rj is already in the native byte-ordering.) | |
| 1898 | |
| 1899 if (ProfileInterpreter) { | |
| 1900 __ ba(false, continue_execution); | |
| 1901 __ delayed()->nop(); | |
| 1902 } | |
| 1903 | |
| 1904 __ bind(default_case); // fall through (if not profiling) | |
| 1905 __ profile_switch_default(Ri); | |
| 1906 | |
| 1907 __ bind(continue_execution); | |
| 1908 __ add( Lbcp, Rj, Lbcp ); | |
| 1909 __ dispatch_next( vtos ); | |
| 1910 } | |
| 1911 | |
| 1912 | |
| 1913 void TemplateTable::_return(TosState state) { | |
| 1914 transition(state, state); | |
| 1915 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
| 1916 | |
| 1917 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 1918 assert(state == vtos, "only valid state"); | |
| 1919 __ mov(G0, G3_scratch); | |
| 1920 __ access_local_ptr(G3_scratch, Otos_i); | |
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1921 __ load_klass(Otos_i, O2); |
| 0 | 1922 __ set(JVM_ACC_HAS_FINALIZER, G3); |
| 1923 __ ld(O2, Klass::access_flags_offset_in_bytes() + sizeof(oopDesc), O2); | |
| 1924 __ andcc(G3, O2, G0); | |
| 1925 Label skip_register_finalizer; | |
| 1926 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
| 1927 __ delayed()->nop(); | |
| 1928 | |
| 1929 // Call out to do finalizer registration | |
| 1930 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
| 1931 | |
| 1932 __ bind(skip_register_finalizer); | |
| 1933 } | |
| 1934 | |
| 1935 __ remove_activation(state, /* throw_monitor_exception */ true); | |
| 1936 | |
| 1937 // The caller's SP was adjusted upon method entry to accomodate | |
| 1938 // the callee's non-argument locals. Undo that adjustment. | |
| 1939 __ ret(); // return to caller | |
| 1940 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 1941 } | |
| 1942 | |
| 1943 | |
| 1944 // ---------------------------------------------------------------------------- | |
| 1945 // Volatile variables demand their effects be made known to all CPU's in | |
| 1946 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 1947 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 1948 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 1949 // reorder volatile references, the hardware also must not reorder them). | |
| 1950 // | |
| 1951 // According to the new Java Memory Model (JMM): | |
| 1952 // (1) All volatiles are serialized wrt to each other. | |
| 1953 // ALSO reads & writes act as aquire & release, so: | |
| 1954 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 1955 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 1956 // that happen before the volatile read to float down below it. | |
| 1957 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 1958 // that happen BEFORE the write float down to after the write. It's OK for | |
| 1959 // non-volatile memory refs that happen after the volatile write to float up | |
| 1960 // before it. | |
| 1961 // | |
| 1962 // We only put in barriers around volatile refs (they are expensive), not | |
| 1963 // _between_ memory refs (that would require us to track the flavor of the | |
| 1964 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 1965 // before volatile stores and after volatile loads. These nearly cover | |
| 1966 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 1967 // case is placed after volatile-stores although it could just as well go | |
| 1968 // before volatile-loads. | |
| 1969 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
| 1970 // Helper function to insert a is-volatile test and memory barrier | |
| 1971 // All current sparc implementations run in TSO, needing only StoreLoad | |
| 1972 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
| 1973 __ membar( order_constraint ); | |
| 1974 } | |
| 1975 | |
| 1976 // ---------------------------------------------------------------------------- | |
| 1565 | 1977 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 1978 Register result, | |
| 1979 Register Rcache, | |
| 1980 Register index, | |
| 1981 size_t index_size) { | |
| 0 | 1982 // Depends on cpCacheOop layout! |
| 1983 Label resolved; | |
| 1984 | |
| 1565 | 1985 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 1986 if (byte_no == f1_oop) { | |
| 1987 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
| 1988 // This kind of CP cache entry does not need to match the flags byte, because | |
| 1989 // there is a 1-1 relation between bytecode type and CP entry type. | |
| 1990 assert_different_registers(result, Rcache); | |
| 1503 | 1991 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + |
| 1565 | 1992 ConstantPoolCacheEntry::f1_offset(), result); |
| 1993 __ tst(result); | |
| 1503 | 1994 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
| 1995 __ delayed()->set((int)bytecode(), O1); | |
| 1996 } else { | |
| 1565 | 1997 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
| 1998 assert(result == noreg, ""); //else change code for setting result | |
| 1999 const int shift_count = (1 + byte_no)*BitsPerByte; | |
| 2000 | |
| 1503 | 2001 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + |
| 2002 ConstantPoolCacheEntry::indices_offset(), Lbyte_code); | |
| 2003 | |
| 2004 __ srl( Lbyte_code, shift_count, Lbyte_code ); | |
| 2005 __ and3( Lbyte_code, 0xFF, Lbyte_code ); | |
| 2006 __ cmp( Lbyte_code, (int)bytecode()); | |
| 2007 __ br( Assembler::equal, false, Assembler::pt, resolved); | |
| 2008 __ delayed()->set((int)bytecode(), O1); | |
| 2009 } | |
| 0 | 2010 |
| 2011 address entry; | |
| 2012 switch (bytecode()) { | |
| 2013 case Bytecodes::_getstatic : // fall through | |
| 2014 case Bytecodes::_putstatic : // fall through | |
| 2015 case Bytecodes::_getfield : // fall through | |
| 2016 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
| 2017 case Bytecodes::_invokevirtual : // fall through | |
| 2018 case Bytecodes::_invokespecial : // fall through | |
| 2019 case Bytecodes::_invokestatic : // fall through | |
| 2020 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
| 1503 | 2021 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
| 1602 | 2022 case Bytecodes::_fast_aldc : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); break; |
| 2023 case Bytecodes::_fast_aldc_w : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); break; | |
| 0 | 2024 default : ShouldNotReachHere(); break; |
| 2025 } | |
| 2026 // first time invocation - must resolve first | |
| 2027 __ call_VM(noreg, entry, O1); | |
| 2028 // Update registers with resolved info | |
| 1565 | 2029 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 2030 if (result != noreg) | |
| 2031 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + | |
| 2032 ConstantPoolCacheEntry::f1_offset(), result); | |
| 0 | 2033 __ bind(resolved); |
| 2034 } | |
| 2035 | |
| 2036 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2037 Register Rmethod, | |
| 2038 Register Ritable_index, | |
| 2039 Register Rflags, | |
| 2040 bool is_invokevirtual, | |
| 1565 | 2041 bool is_invokevfinal, |
| 2042 bool is_invokedynamic) { | |
| 0 | 2043 // Uses both G3_scratch and G4_scratch |
| 2044 Register Rcache = G3_scratch; | |
| 2045 Register Rscratch = G4_scratch; | |
| 2046 assert_different_registers(Rcache, Rmethod, Ritable_index); | |
| 2047 | |
| 2048 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2049 | |
| 2050 // determine constant pool cache field offsets | |
| 2051 const int method_offset = in_bytes( | |
| 2052 cp_base_offset + | |
| 2053 (is_invokevirtual | |
| 2054 ? ConstantPoolCacheEntry::f2_offset() | |
| 2055 : ConstantPoolCacheEntry::f1_offset() | |
| 2056 ) | |
| 2057 ); | |
| 2058 const int flags_offset = in_bytes(cp_base_offset + | |
| 2059 ConstantPoolCacheEntry::flags_offset()); | |
| 2060 // access constant pool cache fields | |
| 2061 const int index_offset = in_bytes(cp_base_offset + | |
| 2062 ConstantPoolCacheEntry::f2_offset()); | |
| 2063 | |
| 2064 if (is_invokevfinal) { | |
| 2065 __ get_cache_and_index_at_bcp(Rcache, Rscratch, 1); | |
| 1565 | 2066 __ ld_ptr(Rcache, method_offset, Rmethod); |
| 2067 } else if (byte_no == f1_oop) { | |
| 2068 // Resolved f1_oop goes directly into 'method' register. | |
| 2069 resolve_cache_and_index(byte_no, Rmethod, Rcache, Rscratch, sizeof(u4)); | |
| 0 | 2070 } else { |
| 1565 | 2071 resolve_cache_and_index(byte_no, noreg, Rcache, Rscratch, sizeof(u2)); |
| 2072 __ ld_ptr(Rcache, method_offset, Rmethod); | |
| 0 | 2073 } |
| 2074 | |
| 2075 if (Ritable_index != noreg) { | |
| 727 | 2076 __ ld_ptr(Rcache, index_offset, Ritable_index); |
| 0 | 2077 } |
| 727 | 2078 __ ld_ptr(Rcache, flags_offset, Rflags); |
| 0 | 2079 } |
| 2080 | |
| 2081 // The Rcache register must be set before call | |
| 2082 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
| 2083 Register Rcache, | |
| 2084 Register index, | |
| 2085 Register Roffset, | |
| 2086 Register Rflags, | |
| 2087 bool is_static) { | |
| 2088 assert_different_registers(Rcache, Rflags, Roffset); | |
| 2089 | |
| 2090 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2091 | |
| 727 | 2092 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 2093 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
| 0 | 2094 if (is_static) { |
| 727 | 2095 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
| 0 | 2096 } |
| 2097 } | |
| 2098 | |
| 2099 // The registers Rcache and index expected to be set before call. | |
| 2100 // Correct values of the Rcache and index registers are preserved. | |
| 2101 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
| 2102 Register index, | |
| 2103 bool is_static, | |
| 2104 bool has_tos) { | |
| 2105 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2106 | |
| 2107 if (JvmtiExport::can_post_field_access()) { | |
| 2108 // Check to see if a field access watch has been set before we take | |
| 2109 // the time to call into the VM. | |
| 2110 Label Label1; | |
| 2111 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2112 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
| 0 | 2113 __ load_contents(get_field_access_count_addr, G1_scratch); |
| 2114 __ tst(G1_scratch); | |
| 2115 __ br(Assembler::zero, false, Assembler::pt, Label1); | |
| 2116 __ delayed()->nop(); | |
| 2117 | |
| 2118 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
| 2119 | |
| 2120 if (is_static) { | |
| 2121 __ clr(Otos_i); | |
| 2122 } else { | |
| 2123 if (has_tos) { | |
| 2124 // save object pointer before call_VM() clobbers it | |
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2125 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
| 0 | 2126 } else { |
| 2127 // Load top of stack (do not pop the value off the stack); | |
| 2128 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 2129 } | |
| 2130 __ verify_oop(Otos_i); | |
| 2131 } | |
| 2132 // Otos_i: object pointer or NULL if static | |
| 2133 // Rcache: cache entry pointer | |
| 2134 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2135 Otos_i, Rcache); | |
| 2136 if (!is_static && has_tos) { | |
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2137 __ pop_ptr(Otos_i); // restore object pointer |
| 0 | 2138 __ verify_oop(Otos_i); |
| 2139 } | |
| 2140 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2141 __ bind(Label1); | |
| 2142 } | |
| 2143 } | |
| 2144 | |
| 2145 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2146 transition(vtos, vtos); | |
| 2147 | |
| 2148 Register Rcache = G3_scratch; | |
| 2149 Register index = G4_scratch; | |
| 2150 Register Rclass = Rcache; | |
| 2151 Register Roffset= G4_scratch; | |
| 2152 Register Rflags = G1_scratch; | |
| 2153 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2154 | |
| 1565 | 2155 resolve_cache_and_index(byte_no, noreg, Rcache, index, sizeof(u2)); |
| 0 | 2156 jvmti_post_field_access(Rcache, index, is_static, false); |
| 2157 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2158 | |
| 2159 if (!is_static) { | |
| 2160 pop_and_check_object(Rclass); | |
| 2161 } else { | |
| 2162 __ verify_oop(Rclass); | |
| 2163 } | |
| 2164 | |
| 2165 Label exit; | |
| 2166 | |
| 2167 Assembler::Membar_mask_bits membar_bits = | |
| 2168 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2169 | |
| 2170 if (__ membar_has_effect(membar_bits)) { | |
| 2171 // Get volatile flag | |
| 2172 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); | |
| 2173 __ and3(Rflags, Lscratch, Lscratch); | |
| 2174 } | |
| 2175 | |
| 2176 Label checkVolatile; | |
| 2177 | |
| 2178 // compute field type | |
| 2179 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
| 2180 __ srl(Rflags, ConstantPoolCacheEntry::tosBits, Rflags); | |
| 2181 // Make sure we don't need to mask Rflags for tosBits after the above shift | |
| 2182 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2183 | |
| 2184 // Check atos before itos for getstatic, more likely (in Queens at least) | |
| 2185 __ cmp(Rflags, atos); | |
| 2186 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2187 __ delayed() ->cmp(Rflags, itos); | |
| 2188 | |
| 2189 // atos | |
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2190 __ load_heap_oop(Rclass, Roffset, Otos_i); |
| 0 | 2191 __ verify_oop(Otos_i); |
| 2192 __ push(atos); | |
| 2193 if (!is_static) { | |
| 2194 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
| 2195 } | |
| 2196 __ ba(false, checkVolatile); | |
| 2197 __ delayed()->tst(Lscratch); | |
| 2198 | |
| 2199 __ bind(notObj); | |
| 2200 | |
| 2201 // cmp(Rflags, itos); | |
| 2202 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2203 __ delayed() ->cmp(Rflags, ltos); | |
| 2204 | |
| 2205 // itos | |
| 2206 __ ld(Rclass, Roffset, Otos_i); | |
| 2207 __ push(itos); | |
| 2208 if (!is_static) { | |
| 2209 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
| 2210 } | |
| 2211 __ ba(false, checkVolatile); | |
| 2212 __ delayed()->tst(Lscratch); | |
| 2213 | |
| 2214 __ bind(notInt); | |
| 2215 | |
| 2216 // cmp(Rflags, ltos); | |
| 2217 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
| 2218 __ delayed() ->cmp(Rflags, btos); | |
| 2219 | |
| 2220 // ltos | |
| 2221 // load must be atomic | |
| 2222 __ ld_long(Rclass, Roffset, Otos_l); | |
| 2223 __ push(ltos); | |
| 2224 if (!is_static) { | |
| 2225 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
| 2226 } | |
| 2227 __ ba(false, checkVolatile); | |
| 2228 __ delayed()->tst(Lscratch); | |
| 2229 | |
| 2230 __ bind(notLong); | |
| 2231 | |
| 2232 // cmp(Rflags, btos); | |
| 2233 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
| 2234 __ delayed() ->cmp(Rflags, ctos); | |
| 2235 | |
| 2236 // btos | |
| 2237 __ ldsb(Rclass, Roffset, Otos_i); | |
| 2238 __ push(itos); | |
| 2239 if (!is_static) { | |
| 2240 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
| 2241 } | |
| 2242 __ ba(false, checkVolatile); | |
| 2243 __ delayed()->tst(Lscratch); | |
| 2244 | |
| 2245 __ bind(notByte); | |
| 2246 | |
| 2247 // cmp(Rflags, ctos); | |
| 2248 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
| 2249 __ delayed() ->cmp(Rflags, stos); | |
| 2250 | |
| 2251 // ctos | |
| 2252 __ lduh(Rclass, Roffset, Otos_i); | |
| 2253 __ push(itos); | |
| 2254 if (!is_static) { | |
| 2255 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
| 2256 } | |
| 2257 __ ba(false, checkVolatile); | |
| 2258 __ delayed()->tst(Lscratch); | |
| 2259 | |
| 2260 __ bind(notChar); | |
| 2261 | |
| 2262 // cmp(Rflags, stos); | |
| 2263 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
| 2264 __ delayed() ->cmp(Rflags, ftos); | |
| 2265 | |
| 2266 // stos | |
| 2267 __ ldsh(Rclass, Roffset, Otos_i); | |
| 2268 __ push(itos); | |
| 2269 if (!is_static) { | |
| 2270 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
| 2271 } | |
| 2272 __ ba(false, checkVolatile); | |
| 2273 __ delayed()->tst(Lscratch); | |
| 2274 | |
| 2275 __ bind(notShort); | |
| 2276 | |
| 2277 | |
| 2278 // cmp(Rflags, ftos); | |
| 2279 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
| 2280 __ delayed() ->tst(Lscratch); | |
| 2281 | |
| 2282 // ftos | |
| 2283 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
| 2284 __ push(ftos); | |
| 2285 if (!is_static) { | |
| 2286 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
| 2287 } | |
| 2288 __ ba(false, checkVolatile); | |
| 2289 __ delayed()->tst(Lscratch); | |
| 2290 | |
| 2291 __ bind(notFloat); | |
| 2292 | |
| 2293 | |
| 2294 // dtos | |
| 2295 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
| 2296 __ push(dtos); | |
| 2297 if (!is_static) { | |
| 2298 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
| 2299 } | |
| 2300 | |
| 2301 __ bind(checkVolatile); | |
| 2302 if (__ membar_has_effect(membar_bits)) { | |
| 2303 // __ tst(Lscratch); executed in delay slot | |
| 2304 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2305 __ delayed()->nop(); | |
| 2306 volatile_barrier(membar_bits); | |
| 2307 } | |
| 2308 | |
| 2309 __ bind(exit); | |
| 2310 } | |
| 2311 | |
| 2312 | |
| 2313 void TemplateTable::getfield(int byte_no) { | |
| 2314 getfield_or_static(byte_no, false); | |
| 2315 } | |
| 2316 | |
| 2317 void TemplateTable::getstatic(int byte_no) { | |
| 2318 getfield_or_static(byte_no, true); | |
| 2319 } | |
| 2320 | |
| 2321 | |
| 2322 void TemplateTable::fast_accessfield(TosState state) { | |
| 2323 transition(atos, state); | |
| 2324 Register Rcache = G3_scratch; | |
| 2325 Register index = G4_scratch; | |
| 2326 Register Roffset = G4_scratch; | |
| 2327 Register Rflags = Rcache; | |
| 2328 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2329 | |
| 2330 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2331 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
| 2332 | |
| 727 | 2333 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2334 |
| 2335 __ null_check(Otos_i); | |
| 2336 __ verify_oop(Otos_i); | |
| 2337 | |
| 2338 Label exit; | |
| 2339 | |
| 2340 Assembler::Membar_mask_bits membar_bits = | |
| 2341 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2342 if (__ membar_has_effect(membar_bits)) { | |
| 2343 // Get volatile flag | |
| 727 | 2344 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
| 0 | 2345 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); |
| 2346 } | |
| 2347 | |
| 2348 switch (bytecode()) { | |
| 2349 case Bytecodes::_fast_bgetfield: | |
| 2350 __ ldsb(Otos_i, Roffset, Otos_i); | |
| 2351 break; | |
| 2352 case Bytecodes::_fast_cgetfield: | |
| 2353 __ lduh(Otos_i, Roffset, Otos_i); | |
| 2354 break; | |
| 2355 case Bytecodes::_fast_sgetfield: | |
| 2356 __ ldsh(Otos_i, Roffset, Otos_i); | |
| 2357 break; | |
| 2358 case Bytecodes::_fast_igetfield: | |
| 2359 __ ld(Otos_i, Roffset, Otos_i); | |
| 2360 break; | |
| 2361 case Bytecodes::_fast_lgetfield: | |
| 2362 __ ld_long(Otos_i, Roffset, Otos_l); | |
| 2363 break; | |
| 2364 case Bytecodes::_fast_fgetfield: | |
| 2365 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
| 2366 break; | |
| 2367 case Bytecodes::_fast_dgetfield: | |
| 2368 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
| 2369 break; | |
| 2370 case Bytecodes::_fast_agetfield: | |
|
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2371 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
| 0 | 2372 break; |
| 2373 default: | |
| 2374 ShouldNotReachHere(); | |
| 2375 } | |
| 2376 | |
| 2377 if (__ membar_has_effect(membar_bits)) { | |
| 2378 __ btst(Lscratch, Rflags); | |
| 2379 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2380 __ delayed()->nop(); | |
| 2381 volatile_barrier(membar_bits); | |
| 2382 __ bind(exit); | |
| 2383 } | |
| 2384 | |
| 2385 if (state == atos) { | |
| 2386 __ verify_oop(Otos_i); // does not blow flags! | |
| 2387 } | |
| 2388 } | |
| 2389 | |
| 2390 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2391 if (JvmtiExport::can_post_field_modification()) { | |
| 2392 // Check to see if a field modification watch has been set before we take | |
| 2393 // the time to call into the VM. | |
| 2394 Label done; | |
| 727 | 2395 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2396 __ load_contents(get_field_modification_count_addr, G4_scratch); |
| 2397 __ tst(G4_scratch); | |
| 2398 __ br(Assembler::zero, false, Assembler::pt, done); | |
| 2399 __ delayed()->nop(); | |
| 2400 __ pop_ptr(G4_scratch); // copy the object pointer from tos | |
| 2401 __ verify_oop(G4_scratch); | |
| 2402 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
| 2403 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
| 2404 // Save tos values before call_VM() clobbers them. Since we have | |
| 2405 // to do it for every data type, we use the saved values as the | |
| 2406 // jvalue object. | |
| 2407 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
| 2408 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
| 2409 case Bytecodes::_fast_bputfield: // fall through | |
| 2410 case Bytecodes::_fast_sputfield: // fall through | |
| 2411 case Bytecodes::_fast_cputfield: // fall through | |
| 2412 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
| 2413 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
| 2414 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
| 2415 // get words in right order for use as jvalue object | |
| 2416 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
| 2417 } | |
| 2418 // setup pointer to jvalue object | |
| 2419 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
| 2420 // G4_scratch: object pointer | |
| 2421 // G1_scratch: cache entry pointer | |
| 2422 // G3_scratch: jvalue object on the stack | |
| 2423 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
| 2424 switch (bytecode()) { // restore tos values | |
| 2425 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
| 2426 case Bytecodes::_fast_bputfield: // fall through | |
| 2427 case Bytecodes::_fast_sputfield: // fall through | |
| 2428 case Bytecodes::_fast_cputfield: // fall through | |
| 2429 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
| 2430 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
| 2431 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
| 2432 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
| 2433 } | |
| 2434 __ bind(done); | |
| 2435 } | |
| 2436 } | |
| 2437 | |
| 2438 // The registers Rcache and index expected to be set before call. | |
| 2439 // The function may destroy various registers, just not the Rcache and index registers. | |
| 2440 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
| 2441 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2442 | |
| 2443 if (JvmtiExport::can_post_field_modification()) { | |
| 2444 // Check to see if a field modification watch has been set before we take | |
| 2445 // the time to call into the VM. | |
| 2446 Label Label1; | |
| 2447 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2448 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2449 __ load_contents(get_field_modification_count_addr, G1_scratch); |
| 2450 __ tst(G1_scratch); | |
| 2451 __ br(Assembler::zero, false, Assembler::pt, Label1); | |
| 2452 __ delayed()->nop(); | |
| 2453 | |
| 2454 // The Rcache and index registers have been already set. | |
| 2455 // This allows to eliminate this call but the Rcache and index | |
| 2456 // registers must be correspondingly used after this line. | |
| 2457 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
| 2458 | |
| 2459 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
| 2460 if (is_static) { | |
| 2461 // Life is simple. Null out the object pointer. | |
| 2462 __ clr(G4_scratch); | |
| 2463 } else { | |
| 2464 Register Rflags = G1_scratch; | |
| 2465 // Life is harder. The stack holds the value on top, followed by the | |
| 2466 // object. We don't know the size of the value, though; it could be | |
| 2467 // one or two words depending on its type. As a result, we must find | |
| 2468 // the type to determine where the object is. | |
| 2469 | |
| 2470 Label two_word, valsizeknown; | |
| 727 | 2471 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2472 __ mov(Lesp, G4_scratch); |
| 2473 __ srl(Rflags, ConstantPoolCacheEntry::tosBits, Rflags); | |
| 2474 // Make sure we don't need to mask Rflags for tosBits after the above shift | |
| 2475 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2476 __ cmp(Rflags, ltos); | |
| 2477 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2478 __ delayed()->cmp(Rflags, dtos); | |
| 2479 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2480 __ delayed()->nop(); | |
| 2481 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
| 2482 __ br(Assembler::always, false, Assembler::pt, valsizeknown); | |
| 2483 __ delayed()->nop(); | |
| 2484 __ bind(two_word); | |
| 2485 | |
| 2486 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
| 2487 | |
| 2488 __ bind(valsizeknown); | |
| 2489 // setup object pointer | |
| 2490 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
| 2491 __ verify_oop(G4_scratch); | |
| 2492 } | |
| 2493 // setup pointer to jvalue object | |
| 2494 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
| 2495 // G4_scratch: object pointer or NULL if static | |
| 2496 // G3_scratch: cache entry pointer | |
| 2497 // G1_scratch: jvalue object on the stack | |
| 2498 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2499 G4_scratch, G3_scratch, G1_scratch); | |
| 2500 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2501 __ bind(Label1); | |
| 2502 } | |
| 2503 } | |
| 2504 | |
| 2505 void TemplateTable::pop_and_check_object(Register r) { | |
| 2506 __ pop_ptr(r); | |
| 2507 __ null_check(r); // for field access must check obj. | |
| 2508 __ verify_oop(r); | |
| 2509 } | |
| 2510 | |
| 2511 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2512 transition(vtos, vtos); | |
| 2513 Register Rcache = G3_scratch; | |
| 2514 Register index = G4_scratch; | |
| 2515 Register Rclass = Rcache; | |
| 2516 Register Roffset= G4_scratch; | |
| 2517 Register Rflags = G1_scratch; | |
| 2518 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2519 | |
| 1565 | 2520 resolve_cache_and_index(byte_no, noreg, Rcache, index, sizeof(u2)); |
| 0 | 2521 jvmti_post_field_mod(Rcache, index, is_static); |
| 2522 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2523 | |
| 2524 Assembler::Membar_mask_bits read_bits = | |
| 2525 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2526 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2527 | |
| 2528 Label notVolatile, checkVolatile, exit; | |
| 2529 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 2530 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); | |
| 2531 __ and3(Rflags, Lscratch, Lscratch); | |
| 2532 | |
| 2533 if (__ membar_has_effect(read_bits)) { | |
| 2534 __ tst(Lscratch); | |
| 2535 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2536 __ delayed()->nop(); | |
| 2537 volatile_barrier(read_bits); | |
| 2538 __ bind(notVolatile); | |
| 2539 } | |
| 2540 } | |
| 2541 | |
| 2542 __ srl(Rflags, ConstantPoolCacheEntry::tosBits, Rflags); | |
| 2543 // Make sure we don't need to mask Rflags for tosBits after the above shift | |
| 2544 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2545 | |
| 2546 // compute field type | |
| 2547 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
| 2548 | |
| 2549 if (is_static) { | |
| 2550 // putstatic with object type most likely, check that first | |
| 2551 __ cmp(Rflags, atos ); | |
| 2552 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2553 __ delayed() ->cmp(Rflags, itos ); | |
| 2554 | |
| 2555 // atos | |
| 2556 __ pop_ptr(); | |
| 2557 __ verify_oop(Otos_i); | |
|
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2558 |
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2559 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2560 |
| 0 | 2561 __ ba(false, checkVolatile); |
| 2562 __ delayed()->tst(Lscratch); | |
| 2563 | |
| 2564 __ bind(notObj); | |
| 2565 | |
| 2566 // cmp(Rflags, itos ); | |
| 2567 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2568 __ delayed() ->cmp(Rflags, btos ); | |
| 2569 | |
| 2570 // itos | |
| 2571 __ pop_i(); | |
| 2572 __ st(Otos_i, Rclass, Roffset); | |
| 2573 __ ba(false, checkVolatile); | |
| 2574 __ delayed()->tst(Lscratch); | |
| 2575 | |
| 2576 __ bind(notInt); | |
| 2577 | |
| 2578 } else { | |
| 2579 // putfield with int type most likely, check that first | |
| 2580 __ cmp(Rflags, itos ); | |
| 2581 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2582 __ delayed() ->cmp(Rflags, atos ); | |
| 2583 | |
| 2584 // itos | |
| 2585 __ pop_i(); | |
| 2586 pop_and_check_object(Rclass); | |
| 2587 __ st(Otos_i, Rclass, Roffset); | |
| 2588 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch); | |
| 2589 __ ba(false, checkVolatile); | |
| 2590 __ delayed()->tst(Lscratch); | |
| 2591 | |
| 2592 __ bind(notInt); | |
| 2593 // cmp(Rflags, atos ); | |
| 2594 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2595 __ delayed() ->cmp(Rflags, btos ); | |
| 2596 | |
| 2597 // atos | |
| 2598 __ pop_ptr(); | |
| 2599 pop_and_check_object(Rclass); | |
| 2600 __ verify_oop(Otos_i); | |
|
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2601 |
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2602 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2603 |
| 0 | 2604 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch); |
| 2605 __ ba(false, checkVolatile); | |
| 2606 __ delayed()->tst(Lscratch); | |
| 2607 | |
| 2608 __ bind(notObj); | |
| 2609 } | |
| 2610 | |
| 2611 // cmp(Rflags, btos ); | |
| 2612 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
| 2613 __ delayed() ->cmp(Rflags, ltos ); | |
| 2614 | |
| 2615 // btos | |
| 2616 __ pop_i(); | |
| 2617 if (!is_static) pop_and_check_object(Rclass); | |
| 2618 __ stb(Otos_i, Rclass, Roffset); | |
| 2619 if (!is_static) { | |
| 2620 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch); | |
| 2621 } | |
| 2622 __ ba(false, checkVolatile); | |
| 2623 __ delayed()->tst(Lscratch); | |
| 2624 | |
| 2625 __ bind(notByte); | |
| 2626 | |
| 2627 // cmp(Rflags, ltos ); | |
| 2628 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
| 2629 __ delayed() ->cmp(Rflags, ctos ); | |
| 2630 | |
| 2631 // ltos | |
| 2632 __ pop_l(); | |
| 2633 if (!is_static) pop_and_check_object(Rclass); | |
| 2634 __ st_long(Otos_l, Rclass, Roffset); | |
| 2635 if (!is_static) { | |
| 2636 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch); | |
| 2637 } | |
| 2638 __ ba(false, checkVolatile); | |
| 2639 __ delayed()->tst(Lscratch); | |
| 2640 | |
| 2641 __ bind(notLong); | |
| 2642 | |
| 2643 // cmp(Rflags, ctos ); | |
| 2644 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
| 2645 __ delayed() ->cmp(Rflags, stos ); | |
| 2646 | |
| 2647 // ctos (char) | |
| 2648 __ pop_i(); | |
| 2649 if (!is_static) pop_and_check_object(Rclass); | |
| 2650 __ sth(Otos_i, Rclass, Roffset); | |
| 2651 if (!is_static) { | |
| 2652 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch); | |
| 2653 } | |
| 2654 __ ba(false, checkVolatile); | |
| 2655 __ delayed()->tst(Lscratch); | |
| 2656 | |
| 2657 __ bind(notChar); | |
| 2658 // cmp(Rflags, stos ); | |
| 2659 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
| 2660 __ delayed() ->cmp(Rflags, ftos ); | |
| 2661 | |
| 2662 // stos (char) | |
| 2663 __ pop_i(); | |
| 2664 if (!is_static) pop_and_check_object(Rclass); | |
| 2665 __ sth(Otos_i, Rclass, Roffset); | |
| 2666 if (!is_static) { | |
| 2667 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch); | |
| 2668 } | |
| 2669 __ ba(false, checkVolatile); | |
| 2670 __ delayed()->tst(Lscratch); | |
| 2671 | |
| 2672 __ bind(notShort); | |
| 2673 // cmp(Rflags, ftos ); | |
| 2674 __ br(Assembler::notZero, false, Assembler::pt, notFloat); | |
| 2675 __ delayed()->nop(); | |
| 2676 | |
| 2677 // ftos | |
| 2678 __ pop_f(); | |
| 2679 if (!is_static) pop_and_check_object(Rclass); | |
| 2680 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
| 2681 if (!is_static) { | |
| 2682 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch); | |
| 2683 } | |
| 2684 __ ba(false, checkVolatile); | |
| 2685 __ delayed()->tst(Lscratch); | |
| 2686 | |
| 2687 __ bind(notFloat); | |
| 2688 | |
| 2689 // dtos | |
| 2690 __ pop_d(); | |
| 2691 if (!is_static) pop_and_check_object(Rclass); | |
| 2692 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
| 2693 if (!is_static) { | |
| 2694 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch); | |
| 2695 } | |
| 2696 | |
| 2697 __ bind(checkVolatile); | |
| 2698 __ tst(Lscratch); | |
| 2699 | |
| 2700 if (__ membar_has_effect(write_bits)) { | |
| 2701 // __ tst(Lscratch); in delay slot | |
| 2702 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2703 __ delayed()->nop(); | |
| 2704 volatile_barrier(Assembler::StoreLoad); | |
| 2705 __ bind(exit); | |
| 2706 } | |
| 2707 } | |
| 2708 | |
| 2709 void TemplateTable::fast_storefield(TosState state) { | |
| 2710 transition(state, vtos); | |
| 2711 Register Rcache = G3_scratch; | |
| 2712 Register Rclass = Rcache; | |
| 2713 Register Roffset= G4_scratch; | |
| 2714 Register Rflags = G1_scratch; | |
| 2715 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2716 | |
| 2717 jvmti_post_fast_field_mod(); | |
| 2718 | |
| 2719 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
| 2720 | |
| 2721 Assembler::Membar_mask_bits read_bits = | |
| 2722 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2723 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2724 | |
| 2725 Label notVolatile, checkVolatile, exit; | |
| 2726 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 727 | 2727 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2728 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); |
| 2729 __ and3(Rflags, Lscratch, Lscratch); | |
| 2730 if (__ membar_has_effect(read_bits)) { | |
| 2731 __ tst(Lscratch); | |
| 2732 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2733 __ delayed()->nop(); | |
| 2734 volatile_barrier(read_bits); | |
| 2735 __ bind(notVolatile); | |
| 2736 } | |
| 2737 } | |
| 2738 | |
| 727 | 2739 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2740 pop_and_check_object(Rclass); |
| 2741 | |
| 2742 switch (bytecode()) { | |
| 2743 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
| 2744 case Bytecodes::_fast_cputfield: /* fall through */ | |
| 2745 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
| 2746 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
| 2747 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
| 2748 case Bytecodes::_fast_fputfield: | |
| 2749 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
| 2750 break; | |
| 2751 case Bytecodes::_fast_dputfield: | |
| 2752 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
| 2753 break; | |
| 2754 case Bytecodes::_fast_aputfield: | |
|
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2755 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
| 0 | 2756 break; |
| 2757 default: | |
| 2758 ShouldNotReachHere(); | |
| 2759 } | |
| 2760 | |
| 2761 if (__ membar_has_effect(write_bits)) { | |
| 2762 __ tst(Lscratch); | |
| 2763 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2764 __ delayed()->nop(); | |
| 2765 volatile_barrier(Assembler::StoreLoad); | |
| 2766 __ bind(exit); | |
| 2767 } | |
| 2768 } | |
| 2769 | |
| 2770 | |
| 2771 void TemplateTable::putfield(int byte_no) { | |
| 2772 putfield_or_static(byte_no, false); | |
| 2773 } | |
| 2774 | |
| 2775 void TemplateTable::putstatic(int byte_no) { | |
| 2776 putfield_or_static(byte_no, true); | |
| 2777 } | |
| 2778 | |
| 2779 | |
| 2780 void TemplateTable::fast_xaccess(TosState state) { | |
| 2781 transition(vtos, state); | |
| 2782 Register Rcache = G3_scratch; | |
| 2783 Register Roffset = G4_scratch; | |
| 2784 Register Rflags = G4_scratch; | |
| 2785 Register Rreceiver = Lscratch; | |
| 2786 | |
| 1506 | 2787 __ ld_ptr(Llocals, 0, Rreceiver); |
| 0 | 2788 |
| 2789 // access constant pool cache (is resolved) | |
| 2790 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
| 727 | 2791 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2792 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
| 2793 | |
| 2794 __ verify_oop(Rreceiver); | |
| 2795 __ null_check(Rreceiver); | |
| 2796 if (state == atos) { | |
|
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2797 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
| 0 | 2798 } else if (state == itos) { |
| 2799 __ ld (Rreceiver, Roffset, Otos_i) ; | |
| 2800 } else if (state == ftos) { | |
| 2801 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
| 2802 } else { | |
| 2803 ShouldNotReachHere(); | |
| 2804 } | |
| 2805 | |
| 2806 Assembler::Membar_mask_bits membar_bits = | |
| 2807 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2808 if (__ membar_has_effect(membar_bits)) { | |
| 2809 | |
| 2810 // Get is_volatile value in Rflags and check if membar is needed | |
| 727 | 2811 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2812 |
| 2813 // Test volatile | |
| 2814 Label notVolatile; | |
| 2815 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); | |
| 2816 __ btst(Rflags, Lscratch); | |
| 2817 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2818 __ delayed()->nop(); | |
| 2819 volatile_barrier(membar_bits); | |
| 2820 __ bind(notVolatile); | |
| 2821 } | |
| 2822 | |
| 2823 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
| 2824 __ sub(Lbcp, 1, Lbcp); | |
| 2825 } | |
| 2826 | |
| 2827 //---------------------------------------------------------------------------------------------------- | |
| 2828 // Calls | |
| 2829 | |
| 2830 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2831 // implemented elsewhere | |
| 2832 ShouldNotReachHere(); | |
| 2833 } | |
| 2834 | |
| 2835 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { | |
| 2836 Register Rtemp = G4_scratch; | |
| 2837 Register Rcall = Rindex; | |
| 2838 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 2839 | |
| 2840 // get target methodOop & entry point | |
| 2841 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
| 2842 if (vtableEntry::size() % 3 == 0) { | |
| 2843 // scale the vtable index by 12: | |
| 2844 int one_third = vtableEntry::size() / 3; | |
| 2845 __ sll(Rindex, exact_log2(one_third * 1 * wordSize), Rtemp); | |
| 2846 __ sll(Rindex, exact_log2(one_third * 2 * wordSize), Rindex); | |
| 2847 __ add(Rindex, Rtemp, Rindex); | |
| 2848 } else { | |
| 2849 // scale the vtable index by 8: | |
| 2850 __ sll(Rindex, exact_log2(vtableEntry::size() * wordSize), Rindex); | |
| 2851 } | |
| 2852 | |
| 2853 __ add(Rrecv, Rindex, Rrecv); | |
| 2854 __ ld_ptr(Rrecv, base + vtableEntry::method_offset_in_bytes(), G5_method); | |
| 2855 | |
| 2856 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 2857 } | |
| 2858 | |
| 2859 void TemplateTable::invokevirtual(int byte_no) { | |
| 2860 transition(vtos, vtos); | |
| 1565 | 2861 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 2862 |
| 2863 Register Rscratch = G3_scratch; | |
| 2864 Register Rtemp = G4_scratch; | |
| 2865 Register Rret = Lscratch; | |
| 2866 Register Rrecv = G5_method; | |
| 2867 Label notFinal; | |
| 2868 | |
| 1565 | 2869 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
| 0 | 2870 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2871 | |
| 2872 // Check for vfinal | |
| 2873 __ set((1 << ConstantPoolCacheEntry::vfinalMethod), G4_scratch); | |
| 2874 __ btst(Rret, G4_scratch); | |
| 2875 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 2876 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
| 2877 | |
| 2878 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
| 2879 | |
| 2880 invokevfinal_helper(Rscratch, Rret); | |
| 2881 | |
| 2882 __ bind(notFinal); | |
| 2883 | |
| 2884 __ mov(G5_method, Rscratch); // better scratch register | |
| 2885 __ load_receiver(G4_scratch, O0); // gets receiverOop | |
| 2886 // receiver is in O0 | |
| 2887 __ verify_oop(O0); | |
| 2888 | |
| 2889 // get return address | |
| 727 | 2890 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 2891 __ set(table, Rtemp); | |
| 0 | 2892 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 2893 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 2894 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2895 __ sll(Rret, LogBytesPerWord, Rret); | |
| 2896 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 2897 | |
| 2898 // get receiver klass | |
| 2899 __ null_check(O0, oopDesc::klass_offset_in_bytes()); | |
|
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2900 __ load_klass(O0, Rrecv); |
| 0 | 2901 __ verify_oop(Rrecv); |
| 2902 | |
| 2903 __ profile_virtual_call(Rrecv, O4); | |
| 2904 | |
| 2905 generate_vtable_call(Rrecv, Rscratch, Rret); | |
| 2906 } | |
| 2907 | |
| 2908 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 2909 transition(vtos, vtos); | |
| 1565 | 2910 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 2911 |
| 2912 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
| 1565 | 2913 /*is_invokevfinal*/true, false); |
| 0 | 2914 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2915 invokevfinal_helper(G3_scratch, Lscratch); | |
| 2916 } | |
| 2917 | |
| 2918 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
| 2919 Register Rtemp = G4_scratch; | |
| 2920 | |
| 2921 __ verify_oop(G5_method); | |
| 2922 | |
| 2923 // Load receiver from stack slot | |
| 727 | 2924 __ lduh(G5_method, in_bytes(methodOopDesc::size_of_parameters_offset()), G4_scratch); |
| 0 | 2925 __ load_receiver(G4_scratch, O0); |
| 2926 | |
| 2927 // receiver NULL check | |
| 2928 __ null_check(O0); | |
| 2929 | |
| 2930 __ profile_final_call(O4); | |
| 2931 | |
| 2932 // get return address | |
| 727 | 2933 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 2934 __ set(table, Rtemp); | |
| 0 | 2935 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 2936 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 2937 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2938 __ sll(Rret, LogBytesPerWord, Rret); | |
| 2939 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 2940 | |
| 2941 | |
| 2942 // do the call | |
| 2943 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 2944 } | |
| 2945 | |
| 2946 void TemplateTable::invokespecial(int byte_no) { | |
| 2947 transition(vtos, vtos); | |
| 1565 | 2948 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 2949 |
| 2950 Register Rscratch = G3_scratch; | |
| 2951 Register Rtemp = G4_scratch; | |
| 2952 Register Rret = Lscratch; | |
| 2953 | |
| 1565 | 2954 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, /*virtual*/ false, false, false); |
| 0 | 2955 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2956 | |
| 2957 __ verify_oop(G5_method); | |
| 2958 | |
| 727 | 2959 __ lduh(G5_method, in_bytes(methodOopDesc::size_of_parameters_offset()), G4_scratch); |
| 0 | 2960 __ load_receiver(G4_scratch, O0); |
| 2961 | |
| 2962 // receiver NULL check | |
| 2963 __ null_check(O0); | |
| 2964 | |
| 2965 __ profile_call(O4); | |
| 2966 | |
| 2967 // get return address | |
| 727 | 2968 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 2969 __ set(table, Rtemp); | |
| 0 | 2970 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 2971 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 2972 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2973 __ sll(Rret, LogBytesPerWord, Rret); | |
| 2974 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 2975 | |
| 2976 // do the call | |
| 2977 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 2978 } | |
| 2979 | |
| 2980 void TemplateTable::invokestatic(int byte_no) { | |
| 2981 transition(vtos, vtos); | |
| 1565 | 2982 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 2983 |
| 2984 Register Rscratch = G3_scratch; | |
| 2985 Register Rtemp = G4_scratch; | |
| 2986 Register Rret = Lscratch; | |
| 2987 | |
| 1565 | 2988 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, /*virtual*/ false, false, false); |
| 0 | 2989 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2990 | |
| 2991 __ verify_oop(G5_method); | |
| 2992 | |
| 2993 __ profile_call(O4); | |
| 2994 | |
| 2995 // get return address | |
| 727 | 2996 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 2997 __ set(table, Rtemp); | |
| 0 | 2998 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 2999 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3000 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3001 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3002 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3003 | |
| 3004 // do the call | |
| 3005 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3006 } | |
| 3007 | |
| 3008 | |
| 3009 void TemplateTable::invokeinterface_object_method(Register RklassOop, | |
| 3010 Register Rcall, | |
| 3011 Register Rret, | |
| 3012 Register Rflags) { | |
| 3013 Register Rscratch = G4_scratch; | |
| 3014 Register Rindex = Lscratch; | |
| 3015 | |
| 3016 assert_different_registers(Rscratch, Rindex, Rret); | |
| 3017 | |
| 3018 Label notFinal; | |
| 3019 | |
| 3020 // Check for vfinal | |
| 3021 __ set((1 << ConstantPoolCacheEntry::vfinalMethod), Rscratch); | |
| 3022 __ btst(Rflags, Rscratch); | |
| 3023 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 3024 __ delayed()->nop(); | |
| 3025 | |
| 3026 __ profile_final_call(O4); | |
| 3027 | |
| 3028 // do the call - the index (f2) contains the methodOop | |
| 3029 assert_different_registers(G5_method, Gargs, Rcall); | |
| 3030 __ mov(Rindex, G5_method); | |
| 3031 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3032 __ bind(notFinal); | |
| 3033 | |
| 3034 __ profile_virtual_call(RklassOop, O4); | |
| 3035 generate_vtable_call(RklassOop, Rindex, Rret); | |
| 3036 } | |
| 3037 | |
| 3038 | |
| 3039 void TemplateTable::invokeinterface(int byte_no) { | |
| 3040 transition(vtos, vtos); | |
| 1565 | 3041 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3042 |
| 3043 Register Rscratch = G4_scratch; | |
| 3044 Register Rret = G3_scratch; | |
| 3045 Register Rindex = Lscratch; | |
| 3046 Register Rinterface = G1_scratch; | |
| 3047 Register RklassOop = G5_method; | |
| 3048 Register Rflags = O1; | |
| 3049 assert_different_registers(Rscratch, G5_method); | |
| 3050 | |
| 1565 | 3051 load_invoke_cp_cache_entry(byte_no, Rinterface, Rindex, Rflags, /*virtual*/ false, false, false); |
| 0 | 3052 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3053 | |
| 3054 // get receiver | |
| 3055 __ and3(Rflags, 0xFF, Rscratch); // gets number of parameters | |
| 3056 __ load_receiver(Rscratch, O0); | |
| 3057 __ verify_oop(O0); | |
| 3058 | |
| 3059 __ mov(Rflags, Rret); | |
| 3060 | |
| 3061 // get return address | |
| 727 | 3062 AddressLiteral table(Interpreter::return_5_addrs_by_index_table()); |
| 3063 __ set(table, Rscratch); | |
| 0 | 3064 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 3065 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3066 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3067 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3068 __ ld_ptr(Rscratch, Rret, Rret); // get return address | |
| 3069 | |
| 3070 // get receiver klass | |
| 3071 __ null_check(O0, oopDesc::klass_offset_in_bytes()); | |
|
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3072 __ load_klass(O0, RklassOop); |
| 0 | 3073 __ verify_oop(RklassOop); |
| 3074 | |
| 3075 // Special case of invokeinterface called for virtual method of | |
| 3076 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3077 // This code isn't produced by javac, but could be produced by | |
| 3078 // another compliant java compiler. | |
| 3079 Label notMethod; | |
| 3080 __ set((1 << ConstantPoolCacheEntry::methodInterface), Rscratch); | |
| 3081 __ btst(Rflags, Rscratch); | |
| 3082 __ br(Assembler::zero, false, Assembler::pt, notMethod); | |
| 3083 __ delayed()->nop(); | |
| 3084 | |
| 3085 invokeinterface_object_method(RklassOop, Rinterface, Rret, Rflags); | |
| 3086 | |
| 3087 __ bind(notMethod); | |
| 3088 | |
| 3089 __ profile_virtual_call(RklassOop, O4); | |
| 3090 | |
| 3091 // | |
| 3092 // find entry point to call | |
| 3093 // | |
| 3094 | |
| 3095 // compute start of first itableOffsetEntry (which is at end of vtable) | |
| 3096 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
| 3097 Label search; | |
| 3098 Register Rtemp = Rflags; | |
| 3099 | |
| 727 | 3100 __ ld(RklassOop, instanceKlass::vtable_length_offset() * wordSize, Rtemp); |
| 0 | 3101 if (align_object_offset(1) > 1) { |
| 3102 __ round_to(Rtemp, align_object_offset(1)); | |
| 3103 } | |
| 3104 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
| 3105 if (Assembler::is_simm13(base)) { | |
| 3106 __ add(Rtemp, base, Rtemp); | |
| 3107 } else { | |
| 3108 __ set(base, Rscratch); | |
| 3109 __ add(Rscratch, Rtemp, Rtemp); | |
| 3110 } | |
| 3111 __ add(RklassOop, Rtemp, Rscratch); | |
| 3112 | |
| 3113 __ bind(search); | |
| 3114 | |
| 3115 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
| 3116 { | |
| 3117 Label ok; | |
| 3118 | |
| 3119 // Check that entry is non-null. Null entries are probably a bytecode | |
| 605 | 3120 // problem. If the interface isn't implemented by the receiver class, |
| 0 | 3121 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
| 3122 // this too but that's only if the entry isn't already resolved, so we | |
| 3123 // need to check again. | |
| 3124 __ br_notnull( Rtemp, false, Assembler::pt, ok); | |
| 3125 __ delayed()->nop(); | |
| 3126 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 3127 __ should_not_reach_here(); | |
| 3128 __ bind(ok); | |
| 3129 __ verify_oop(Rtemp); | |
| 3130 } | |
| 3131 | |
| 3132 __ verify_oop(Rinterface); | |
| 3133 | |
| 3134 __ cmp(Rinterface, Rtemp); | |
| 3135 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
| 3136 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
| 3137 | |
| 3138 // entry found and Rscratch points to it | |
| 3139 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
| 3140 | |
| 3141 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
| 3142 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
| 3143 __ add(Rscratch, Rindex, Rscratch); | |
| 3144 __ ld_ptr(RklassOop, Rscratch, G5_method); | |
| 3145 | |
| 3146 // Check for abstract method error. | |
| 3147 { | |
| 3148 Label ok; | |
| 3149 __ tst(G5_method); | |
| 3150 __ brx(Assembler::notZero, false, Assembler::pt, ok); | |
| 3151 __ delayed()->nop(); | |
| 3152 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); | |
| 3153 __ should_not_reach_here(); | |
| 3154 __ bind(ok); | |
| 3155 } | |
| 3156 | |
| 3157 Register Rcall = Rinterface; | |
| 3158 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 3159 | |
| 3160 __ verify_oop(G5_method); | |
| 3161 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3162 | |
| 3163 } | |
| 3164 | |
| 3165 | |
|
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3166 void TemplateTable::invokedynamic(int byte_no) { |
|
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3167 transition(vtos, vtos); |
| 1565 | 3168 assert(byte_no == f1_oop, "use this argument"); |
|
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3169 |
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3170 if (!EnableInvokeDynamic) { |
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3171 // We should not encounter this bytecode if !EnableInvokeDynamic. |
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3172 // The verifier will stop it. However, if we get past the verifier, |
|
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3173 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
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3174 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
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3175 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
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3176 // the call_VM checks for exception, so we should never return here. |
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3177 __ should_not_reach_here(); |
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3178 return; |
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3179 } |
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3180 |
| 1503 | 3181 // G5: CallSite object (f1) |
| 3182 // XX: unused (f2) | |
| 3183 // XX: flags (unused) | |
| 3184 | |
| 3185 Register G5_callsite = G5_method; | |
| 3186 Register Rscratch = G3_scratch; | |
| 3187 Register Rtemp = G1_scratch; | |
| 3188 Register Rret = Lscratch; | |
| 3189 | |
| 1565 | 3190 load_invoke_cp_cache_entry(byte_no, G5_callsite, noreg, Rret, |
| 3191 /*virtual*/ false, /*vfinal*/ false, /*indy*/ true); | |
| 1503 | 3192 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3193 | |
| 3194 __ verify_oop(G5_callsite); | |
| 3195 | |
| 3196 // profile this call | |
| 3197 __ profile_call(O4); | |
| 3198 | |
| 3199 // get return address | |
| 3200 AddressLiteral table(Interpreter::return_5_addrs_by_index_table()); | |
| 3201 __ set(table, Rtemp); | |
| 3202 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type | |
| 3203 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3204 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3205 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3206 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3207 | |
| 3208 __ ld_ptr(G5_callsite, __ delayed_value(java_dyn_CallSite::target_offset_in_bytes, Rscratch), G3_method_handle); | |
| 3209 __ null_check(G3_method_handle); | |
| 3210 | |
| 3211 // Adjust Rret first so Llast_SP can be same as Rret | |
| 3212 __ add(Rret, -frame::pc_return_offset, O7); | |
| 3213 __ add(Lesp, BytesPerWord, Gargs); // setup parameter pointer | |
| 3214 __ jump_to_method_handle_entry(G3_method_handle, Rtemp, /* emit_delayed_nop */ false); | |
| 3215 // Record SP so we can remove any stack space allocated by adapter transition | |
| 3216 __ delayed()->mov(SP, Llast_SP); | |
|
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3217 } |
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3218 |
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3219 |
| 0 | 3220 //---------------------------------------------------------------------------------------------------- |
| 3221 // Allocation | |
| 3222 | |
| 3223 void TemplateTable::_new() { | |
| 3224 transition(vtos, atos); | |
| 3225 | |
| 3226 Label slow_case; | |
| 3227 Label done; | |
| 3228 Label initialize_header; | |
| 3229 Label initialize_object; // including clearing the fields | |
| 3230 | |
| 3231 Register RallocatedObject = Otos_i; | |
| 3232 Register RinstanceKlass = O1; | |
| 3233 Register Roffset = O3; | |
| 3234 Register Rscratch = O4; | |
| 3235 | |
| 3236 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3237 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
| 3238 // make sure the class we're about to instantiate has been resolved | |
| 3239 __ add(G3_scratch, typeArrayOopDesc::header_size(T_BYTE) * wordSize, G3_scratch); | |
| 3240 __ ldub(G3_scratch, Roffset, G3_scratch); | |
| 3241 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3242 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3243 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3244 | |
| 3245 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot | |
| 3246 __ add(Roffset, sizeof(constantPoolOopDesc), Roffset); | |
| 3247 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); | |
| 3248 | |
| 3249 // make sure klass is fully initialized: | |
| 3250 __ ld(RinstanceKlass, instanceKlass::init_state_offset_in_bytes() + sizeof(oopDesc), G3_scratch); | |
| 3251 __ cmp(G3_scratch, instanceKlass::fully_initialized); | |
| 3252 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3253 __ delayed()->ld(RinstanceKlass, Klass::layout_helper_offset_in_bytes() + sizeof(oopDesc), Roffset); | |
| 3254 | |
| 3255 // get instance_size in instanceKlass (already aligned) | |
| 3256 //__ ld(RinstanceKlass, Klass::layout_helper_offset_in_bytes() + sizeof(oopDesc), Roffset); | |
| 3257 | |
| 3258 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
| 3259 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
| 3260 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
| 3261 __ delayed()->nop(); | |
| 3262 | |
| 3263 // allocate the instance | |
| 3264 // 1) Try to allocate in the TLAB | |
| 3265 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
| 3266 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3267 // (creates a new TLAB, etc.) | |
| 3268 | |
| 3269 const bool allow_shared_alloc = | |
| 3270 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3271 | |
| 3272 if(UseTLAB) { | |
| 3273 Register RoldTopValue = RallocatedObject; | |
| 3274 Register RtopAddr = G3_scratch, RtlabWasteLimitValue = G3_scratch; | |
| 3275 Register RnewTopValue = G1_scratch; | |
| 3276 Register RendValue = Rscratch; | |
| 3277 Register RfreeValue = RnewTopValue; | |
| 3278 | |
| 3279 // check if we can allocate in the TLAB | |
| 3280 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
| 3281 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
| 3282 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3283 | |
| 3284 // if there is enough space, we do not CAS and do not clear | |
| 3285 __ cmp(RnewTopValue, RendValue); | |
| 3286 if(ZeroTLAB) { | |
| 3287 // the fields have already been cleared | |
| 3288 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
| 3289 } else { | |
| 3290 // initialize both the header and fields | |
| 3291 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
| 3292 } | |
| 3293 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
| 3294 | |
| 3295 if (allow_shared_alloc) { | |
| 3296 // Check if tlab should be discarded (refill_waste_limit >= free) | |
| 3297 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); | |
| 3298 __ sub(RendValue, RoldTopValue, RfreeValue); | |
| 3299 #ifdef _LP64 | |
| 3300 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); | |
| 3301 #else | |
| 3302 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); | |
| 3303 #endif | |
| 3304 __ cmp(RtlabWasteLimitValue, RfreeValue); | |
| 3305 __ brx(Assembler::greaterEqualUnsigned, false, Assembler::pt, slow_case); // tlab waste is small | |
| 3306 __ delayed()->nop(); | |
| 3307 | |
| 3308 // increment waste limit to prevent getting stuck on this slow path | |
| 3309 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); | |
| 3310 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); | |
| 3311 } else { | |
| 3312 // No allocation in the shared eden. | |
| 3313 __ br(Assembler::always, false, Assembler::pt, slow_case); | |
| 3314 __ delayed()->nop(); | |
| 3315 } | |
| 3316 } | |
| 3317 | |
| 3318 // Allocation in the shared Eden | |
| 3319 if (allow_shared_alloc) { | |
| 3320 Register RoldTopValue = G1_scratch; | |
| 3321 Register RtopAddr = G3_scratch; | |
| 3322 Register RnewTopValue = RallocatedObject; | |
| 3323 Register RendValue = Rscratch; | |
| 3324 | |
| 3325 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
| 3326 | |
| 3327 Label retry; | |
| 3328 __ bind(retry); | |
| 3329 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
| 3330 __ ld_ptr(RendValue, 0, RendValue); | |
| 3331 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
| 3332 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3333 | |
| 3334 // RnewTopValue contains the top address after the new object | |
| 3335 // has been allocated. | |
| 3336 __ cmp(RnewTopValue, RendValue); | |
| 3337 __ brx(Assembler::greaterUnsigned, false, Assembler::pn, slow_case); | |
| 3338 __ delayed()->nop(); | |
| 3339 | |
| 3340 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
| 3341 VM_Version::v9_instructions_work() ? NULL : | |
| 3342 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
| 3343 | |
| 3344 // if someone beat us on the allocation, try again, otherwise continue | |
| 3345 __ cmp(RoldTopValue, RnewTopValue); | |
| 3346 __ brx(Assembler::notEqual, false, Assembler::pn, retry); | |
| 3347 __ delayed()->nop(); | |
| 3348 } | |
| 3349 | |
| 3350 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3351 // clear object fields | |
| 3352 __ bind(initialize_object); | |
| 3353 __ deccc(Roffset, sizeof(oopDesc)); | |
| 3354 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
| 3355 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
| 3356 | |
| 3357 // initialize remaining object fields | |
| 3358 { Label loop; | |
| 3359 __ subcc(Roffset, wordSize, Roffset); | |
| 3360 __ bind(loop); | |
| 3361 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
| 3362 __ st_ptr(G0, G3_scratch, Roffset); | |
| 3363 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
| 3364 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
| 3365 } | |
| 3366 __ br(Assembler::always, false, Assembler::pt, initialize_header); | |
| 3367 __ delayed()->nop(); | |
| 3368 } | |
| 3369 | |
| 3370 // slow case | |
| 3371 __ bind(slow_case); | |
| 3372 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3373 __ get_constant_pool(O1); | |
| 3374 | |
| 3375 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
| 3376 | |
| 3377 __ ba(false, done); | |
| 3378 __ delayed()->nop(); | |
| 3379 | |
| 3380 // Initialize the header: mark, klass | |
| 3381 __ bind(initialize_header); | |
| 3382 | |
| 3383 if (UseBiasedLocking) { | |
| 3384 __ ld_ptr(RinstanceKlass, Klass::prototype_header_offset_in_bytes() + sizeof(oopDesc), G4_scratch); | |
| 3385 } else { | |
| 3386 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
| 3387 } | |
| 3388 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
|
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3389 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
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3390 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
| 0 | 3391 |
| 3392 { | |
| 3393 SkipIfEqual skip_if( | |
| 3394 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
| 3395 // Trigger dtrace event | |
| 3396 __ push(atos); | |
| 3397 __ call_VM_leaf(noreg, | |
| 3398 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
| 3399 __ pop(atos); | |
| 3400 } | |
| 3401 | |
| 3402 // continue | |
| 3403 __ bind(done); | |
| 3404 } | |
| 3405 | |
| 3406 | |
| 3407 | |
| 3408 void TemplateTable::newarray() { | |
| 3409 transition(itos, atos); | |
| 3410 __ ldub(Lbcp, 1, O1); | |
| 3411 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
| 3412 } | |
| 3413 | |
| 3414 | |
| 3415 void TemplateTable::anewarray() { | |
| 3416 transition(itos, atos); | |
| 3417 __ get_constant_pool(O1); | |
| 3418 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3419 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
| 3420 } | |
| 3421 | |
| 3422 | |
| 3423 void TemplateTable::arraylength() { | |
| 3424 transition(atos, itos); | |
| 3425 Label ok; | |
| 3426 __ verify_oop(Otos_i); | |
| 3427 __ tst(Otos_i); | |
| 3428 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
| 3429 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
| 3430 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3431 } | |
| 3432 | |
| 3433 | |
| 3434 void TemplateTable::checkcast() { | |
| 3435 transition(atos, atos); | |
| 3436 Label done, is_null, quicked, cast_ok, resolved; | |
| 3437 Register Roffset = G1_scratch; | |
| 3438 Register RobjKlass = O5; | |
| 3439 Register RspecifiedKlass = O4; | |
| 3440 | |
| 3441 // Check for casting a NULL | |
| 3442 __ br_null(Otos_i, false, Assembler::pn, is_null); | |
| 3443 __ delayed()->nop(); | |
| 3444 | |
| 3445 // Get value klass in RobjKlass | |
|
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3446 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3447 |
| 3448 // Get constant pool tag | |
| 3449 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3450 | |
| 3451 // See if the checkcast has been quickened | |
| 3452 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
| 3453 __ add(G3_scratch, typeArrayOopDesc::header_size(T_BYTE) * wordSize, G3_scratch); | |
| 3454 __ ldub(G3_scratch, Roffset, G3_scratch); | |
| 3455 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3456 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3457 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3458 | |
| 3459 __ push_ptr(); // save receiver for result, and for GC | |
| 3460 call_VM(RspecifiedKlass, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); | |
| 3461 __ pop_ptr(Otos_i, G3_scratch); // restore receiver | |
| 3462 | |
| 3463 __ br(Assembler::always, false, Assembler::pt, resolved); | |
|
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3464 __ delayed()->nop(); |
| 0 | 3465 |
| 3466 // Extract target class from constant pool | |
| 3467 __ bind(quicked); | |
| 3468 __ add(Roffset, sizeof(constantPoolOopDesc), Roffset); | |
| 3469 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3470 __ bind(resolved); | |
|
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3471 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3472 |
| 3473 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3474 // failure. Throw exception if failure. | |
| 3475 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
| 3476 | |
| 3477 // Not a subtype; so must throw exception | |
| 3478 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
| 3479 | |
| 3480 __ bind(cast_ok); | |
| 3481 | |
| 3482 if (ProfileInterpreter) { | |
| 3483 __ ba(false, done); | |
| 3484 __ delayed()->nop(); | |
| 3485 } | |
| 3486 __ bind(is_null); | |
| 3487 __ profile_null_seen(G3_scratch); | |
| 3488 __ bind(done); | |
| 3489 } | |
| 3490 | |
| 3491 | |
| 3492 void TemplateTable::instanceof() { | |
| 3493 Label done, is_null, quicked, resolved; | |
| 3494 transition(atos, itos); | |
| 3495 Register Roffset = G1_scratch; | |
| 3496 Register RobjKlass = O5; | |
| 3497 Register RspecifiedKlass = O4; | |
| 3498 | |
| 3499 // Check for casting a NULL | |
| 3500 __ br_null(Otos_i, false, Assembler::pt, is_null); | |
| 3501 __ delayed()->nop(); | |
| 3502 | |
| 3503 // Get value klass in RobjKlass | |
|
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3504 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3505 |
| 3506 // Get constant pool tag | |
| 3507 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3508 | |
| 3509 // See if the checkcast has been quickened | |
| 3510 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
| 3511 __ add(G3_scratch, typeArrayOopDesc::header_size(T_BYTE) * wordSize, G3_scratch); | |
| 3512 __ ldub(G3_scratch, Roffset, G3_scratch); | |
| 3513 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3514 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3515 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3516 | |
| 3517 __ push_ptr(); // save receiver for result, and for GC | |
| 3518 call_VM(RspecifiedKlass, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); | |
| 3519 __ pop_ptr(Otos_i, G3_scratch); // restore receiver | |
| 3520 | |
| 3521 __ br(Assembler::always, false, Assembler::pt, resolved); | |
|
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3522 __ delayed()->nop(); |
| 0 | 3523 |
| 3524 | |
| 3525 // Extract target class from constant pool | |
| 3526 __ bind(quicked); | |
| 3527 __ add(Roffset, sizeof(constantPoolOopDesc), Roffset); | |
| 3528 __ get_constant_pool(Lscratch); | |
| 3529 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3530 __ bind(resolved); | |
|
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3531 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3532 |
| 3533 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3534 // failure. Return 0 if failure. | |
| 3535 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
| 3536 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
| 3537 // Not a subtype; return 0; | |
| 3538 __ clr( Otos_i ); | |
| 3539 | |
| 3540 if (ProfileInterpreter) { | |
| 3541 __ ba(false, done); | |
| 3542 __ delayed()->nop(); | |
| 3543 } | |
| 3544 __ bind(is_null); | |
| 3545 __ profile_null_seen(G3_scratch); | |
| 3546 __ bind(done); | |
| 3547 } | |
| 3548 | |
| 3549 void TemplateTable::_breakpoint() { | |
| 3550 | |
| 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 // get the unpatched byte code | |
| 3557 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
| 3558 __ mov(O0, Lbyte_code); | |
| 3559 | |
| 3560 // post the breakpoint event | |
| 3561 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
| 3562 | |
| 3563 // complete the execution of original bytecode | |
| 3564 __ dispatch_normal(vtos); | |
| 3565 } | |
| 3566 | |
| 3567 | |
| 3568 //---------------------------------------------------------------------------------------------------- | |
| 3569 // Exceptions | |
| 3570 | |
| 3571 void TemplateTable::athrow() { | |
| 3572 transition(atos, vtos); | |
| 3573 | |
| 3574 // This works because exception is cached in Otos_i which is same as O0, | |
| 3575 // which is same as what throw_exception_entry_expects | |
| 3576 assert(Otos_i == Oexception, "see explanation above"); | |
| 3577 | |
| 3578 __ verify_oop(Otos_i); | |
| 3579 __ null_check(Otos_i); | |
| 3580 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
| 3581 } | |
| 3582 | |
| 3583 | |
| 3584 //---------------------------------------------------------------------------------------------------- | |
| 3585 // Synchronization | |
| 3586 | |
| 3587 | |
| 3588 // See frame_sparc.hpp for monitor block layout. | |
| 3589 // Monitor elements are dynamically allocated by growing stack as needed. | |
| 3590 | |
| 3591 void TemplateTable::monitorenter() { | |
| 3592 transition(atos, vtos); | |
| 3593 __ verify_oop(Otos_i); | |
| 3594 // Try to acquire a lock on the object | |
| 3595 // Repeat until succeeded (i.e., until | |
| 3596 // monitorenter returns true). | |
| 3597 | |
| 3598 { Label ok; | |
| 3599 __ tst(Otos_i); | |
| 3600 __ throw_if_not_1_x( Assembler::notZero, ok); | |
| 3601 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
| 3602 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3603 } | |
| 3604 | |
| 3605 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
| 3606 | |
| 3607 // find a free slot in the monitor block | |
| 3608 | |
| 3609 | |
| 3610 // initialize entry pointer | |
| 3611 __ clr(O1); // points to free slot or NULL | |
| 3612 | |
| 3613 { | |
| 3614 Label entry, loop, exit; | |
| 3615 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3616 __ ba( false, entry ); | |
| 3617 __ delayed()->mov( Lmonitors, O3 ); // first one to check | |
| 3618 | |
| 3619 | |
| 3620 __ bind( loop ); | |
| 3621 | |
| 3622 __ verify_oop(O4); // verify each monitor's oop | |
| 3623 __ tst(O4); // is this entry unused? | |
| 3624 if (VM_Version::v9_instructions_work()) | |
| 3625 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
| 3626 else { | |
| 3627 Label L; | |
| 3628 __ br( Assembler::zero, true, Assembler::pn, L ); | |
| 3629 __ delayed()->mov(O3, O1); // rememeber this one if match | |
| 3630 __ bind(L); | |
| 3631 } | |
| 3632 | |
| 3633 __ cmp(O4, O0); // check if current entry is for same object | |
| 3634 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
| 3635 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
| 3636 | |
| 3637 __ bind( entry ); | |
| 3638 | |
| 3639 __ cmp( O3, O2 ); | |
| 3640 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3641 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3642 | |
| 3643 __ bind( exit ); | |
| 3644 } | |
| 3645 | |
| 3646 { Label allocated; | |
| 3647 | |
| 3648 // found free slot? | |
| 3649 __ br_notnull(O1, false, Assembler::pn, allocated); | |
| 3650 __ delayed()->nop(); | |
| 3651 | |
| 3652 __ add_monitor_to_stack( false, O2, O3 ); | |
| 3653 __ mov(Lmonitors, O1); | |
| 3654 | |
| 3655 __ bind(allocated); | |
| 3656 } | |
| 3657 | |
| 3658 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3659 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3660 __ inc(Lbcp); | |
| 3661 | |
| 3662 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
| 3663 __ lock_object(O1, O0); | |
| 3664 | |
| 3665 // check if there's enough space on the stack for the monitors after locking | |
| 3666 __ generate_stack_overflow_check(0); | |
| 3667 | |
| 3668 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3669 __ dispatch_next(vtos); | |
| 3670 } | |
| 3671 | |
| 3672 | |
| 3673 void TemplateTable::monitorexit() { | |
| 3674 transition(atos, vtos); | |
| 3675 __ verify_oop(Otos_i); | |
| 3676 __ tst(Otos_i); | |
| 3677 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
| 3678 | |
| 3679 assert(O0 == Otos_i, "just checking"); | |
| 3680 | |
| 3681 { Label entry, loop, found; | |
| 3682 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3683 __ ba(false, entry ); | |
| 3684 // use Lscratch to hold monitor elem to check, start with most recent monitor, | |
| 3685 // By using a local it survives the call to the C routine. | |
| 3686 __ delayed()->mov( Lmonitors, Lscratch ); | |
| 3687 | |
| 3688 __ bind( loop ); | |
| 3689 | |
| 3690 __ verify_oop(O4); // verify each monitor's oop | |
| 3691 __ cmp(O4, O0); // check if current entry is for desired object | |
| 3692 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
| 3693 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
| 3694 | |
| 3695 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
| 3696 | |
| 3697 __ bind( entry ); | |
| 3698 | |
| 3699 __ cmp( Lscratch, O2 ); | |
| 3700 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3701 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3702 | |
| 3703 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3704 __ should_not_reach_here(); | |
| 3705 | |
| 3706 __ bind(found); | |
| 3707 } | |
| 3708 __ unlock_object(O1); | |
| 3709 } | |
| 3710 | |
| 3711 | |
| 3712 //---------------------------------------------------------------------------------------------------- | |
| 3713 // Wide instructions | |
| 3714 | |
| 3715 void TemplateTable::wide() { | |
| 3716 transition(vtos, vtos); | |
| 3717 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
| 3718 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
| 727 | 3719 AddressLiteral ep(Interpreter::_wentry_point); |
| 3720 __ set(ep, G4_scratch); | |
| 3721 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
| 0 | 3722 __ jmp(G3_scratch, G0); |
| 3723 __ delayed()->nop(); | |
| 3724 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
| 3725 } | |
| 3726 | |
| 3727 | |
| 3728 //---------------------------------------------------------------------------------------------------- | |
| 3729 // Multi arrays | |
| 3730 | |
| 3731 void TemplateTable::multianewarray() { | |
| 3732 transition(vtos, atos); | |
| 3733 // put ndims * wordSize into Lscratch | |
| 3734 __ ldub( Lbcp, 3, Lscratch); | |
| 1506 | 3735 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
| 0 | 3736 // Lesp points past last_dim, so set to O1 to first_dim address |
| 3737 __ add( Lesp, Lscratch, O1); | |
| 3738 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
| 3739 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
| 3740 } | |
| 3741 #endif /* !CC_INTERP */ |