Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 7402:fd74228fd5ca
8004076: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
Summary: Move _max_locals and _size_of_parameters to ConstMethod for better sharing.
Reviewed-by: coleenp, minqi, jrose
| author | jiangli |
|---|---|
| date | Tue, 11 Dec 2012 12:41:31 -0500 |
| parents | 6e5a59a8e4a7 |
| children | db9981fd3124 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "interpreter/interpreter.hpp" | |
| 27 #include "interpreter/interpreterRuntime.hpp" | |
| 28 #include "interpreter/templateTable.hpp" | |
| 29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
| 1972 | 31 #include "oops/objArrayKlass.hpp" |
| 32 #include "oops/oop.inline.hpp" | |
| 33 #include "prims/methodHandles.hpp" | |
| 34 #include "runtime/sharedRuntime.hpp" | |
| 35 #include "runtime/stubRoutines.hpp" | |
| 36 #include "runtime/synchronizer.hpp" | |
| 0 | 37 |
| 38 #ifndef CC_INTERP | |
| 39 #define __ _masm-> | |
| 40 | |
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41 // Misc helpers |
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42 |
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43 // Do an oop store like *(base + index + offset) = val |
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44 // index can be noreg, |
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45 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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46 Register base, |
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47 Register index, |
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48 int offset, |
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49 Register val, |
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50 Register tmp, |
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51 BarrierSet::Name barrier, |
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52 bool precise) { |
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53 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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54 assert(index == noreg || offset == 0, "only one offset"); |
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55 switch (barrier) { |
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56 #ifndef SERIALGC |
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57 case BarrierSet::G1SATBCT: |
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58 case BarrierSet::G1SATBCTLogging: |
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59 { |
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60 // Load and record the previous value. |
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61 __ g1_write_barrier_pre(base, index, offset, |
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62 noreg /* pre_val */, |
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63 tmp, true /*preserve_o_regs*/); |
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64 |
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65 if (index == noreg ) { |
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66 assert(Assembler::is_simm13(offset), "fix this code"); |
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67 __ store_heap_oop(val, base, offset); |
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68 } else { |
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69 __ store_heap_oop(val, base, index); |
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70 } |
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71 |
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72 // No need for post barrier if storing NULL |
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73 if (val != G0) { |
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74 if (precise) { |
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75 if (index == noreg) { |
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76 __ add(base, offset, base); |
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77 } else { |
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78 __ add(base, index, base); |
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79 } |
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80 } |
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81 __ g1_write_barrier_post(base, val, tmp); |
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82 } |
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83 } |
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84 break; |
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85 #endif // SERIALGC |
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86 case BarrierSet::CardTableModRef: |
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87 case BarrierSet::CardTableExtension: |
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88 { |
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89 if (index == noreg ) { |
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90 assert(Assembler::is_simm13(offset), "fix this code"); |
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91 __ store_heap_oop(val, base, offset); |
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92 } else { |
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93 __ store_heap_oop(val, base, index); |
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94 } |
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95 // No need for post barrier if storing NULL |
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96 if (val != G0) { |
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97 if (precise) { |
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98 if (index == noreg) { |
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99 __ add(base, offset, base); |
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100 } else { |
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101 __ add(base, index, base); |
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102 } |
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103 } |
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104 __ card_write_barrier_post(base, val, tmp); |
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105 } |
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106 } |
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107 break; |
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108 case BarrierSet::ModRef: |
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109 case BarrierSet::Other: |
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110 ShouldNotReachHere(); |
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111 break; |
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112 default : |
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113 ShouldNotReachHere(); |
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114 |
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115 } |
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116 } |
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117 |
| 0 | 118 |
| 119 //---------------------------------------------------------------------------------------------------- | |
| 120 // Platform-dependent initialization | |
| 121 | |
| 122 void TemplateTable::pd_initialize() { | |
| 123 // (none) | |
| 124 } | |
| 125 | |
| 126 | |
| 127 //---------------------------------------------------------------------------------------------------- | |
| 128 // Condition conversion | |
| 129 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
| 130 switch (cc) { | |
| 131 case TemplateTable::equal : return Assembler::notEqual; | |
| 132 case TemplateTable::not_equal : return Assembler::equal; | |
| 133 case TemplateTable::less : return Assembler::greaterEqual; | |
| 134 case TemplateTable::less_equal : return Assembler::greater; | |
| 135 case TemplateTable::greater : return Assembler::lessEqual; | |
| 136 case TemplateTable::greater_equal: return Assembler::less; | |
| 137 } | |
| 138 ShouldNotReachHere(); | |
| 139 return Assembler::zero; | |
| 140 } | |
| 141 | |
| 142 //---------------------------------------------------------------------------------------------------- | |
| 143 // Miscelaneous helper routines | |
| 144 | |
| 145 | |
| 146 Address TemplateTable::at_bcp(int offset) { | |
| 147 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 727 | 148 return Address(Lbcp, offset); |
| 0 | 149 } |
| 150 | |
| 151 | |
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152 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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153 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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154 int byte_no) { |
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155 // With sharing on, may need to test Method* flag. |
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156 if (!RewriteBytecodes) return; |
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157 Label L_patch_done; |
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158 |
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159 switch (bc) { |
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160 case Bytecodes::_fast_aputfield: |
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161 case Bytecodes::_fast_bputfield: |
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162 case Bytecodes::_fast_cputfield: |
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163 case Bytecodes::_fast_dputfield: |
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164 case Bytecodes::_fast_fputfield: |
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165 case Bytecodes::_fast_iputfield: |
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166 case Bytecodes::_fast_lputfield: |
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167 case Bytecodes::_fast_sputfield: |
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168 { |
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169 // We skip bytecode quickening for putfield instructions when |
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170 // the put_code written to the constant pool cache is zero. |
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171 // This is required so that every execution of this instruction |
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172 // calls out to InterpreterRuntime::resolve_get_put to do |
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173 // additional, required work. |
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174 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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175 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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176 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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177 __ set(bc, bc_reg); |
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178 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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179 } |
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180 break; |
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181 default: |
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182 assert(byte_no == -1, "sanity"); |
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183 if (load_bc_into_bc_reg) { |
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184 __ set(bc, bc_reg); |
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185 } |
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186 } |
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187 |
| 0 | 188 if (JvmtiExport::can_post_breakpoint()) { |
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189 Label L_fast_patch; |
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190 __ ldub(at_bcp(0), temp_reg); |
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191 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
| 0 | 192 // perform the quickening, slowly, in the bowels of the breakpoint table |
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193 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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194 __ ba_short(L_patch_done); |
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195 __ bind(L_fast_patch); |
| 0 | 196 } |
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197 |
| 0 | 198 #ifdef ASSERT |
| 199 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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200 Label L_okay; |
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201 __ ldub(at_bcp(0), temp_reg); |
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202 __ cmp(temp_reg, orig_bytecode); |
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203 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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204 __ delayed()->cmp(temp_reg, bc_reg); |
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205 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
| 0 | 206 __ delayed()->nop(); |
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207 __ stop("patching the wrong bytecode"); |
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208 __ bind(L_okay); |
| 0 | 209 #endif |
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210 |
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211 // patch bytecode |
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212 __ stb(bc_reg, at_bcp(0)); |
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213 __ bind(L_patch_done); |
| 0 | 214 } |
| 215 | |
| 216 //---------------------------------------------------------------------------------------------------- | |
| 217 // Individual instructions | |
| 218 | |
| 219 void TemplateTable::nop() { | |
| 220 transition(vtos, vtos); | |
| 221 // nothing to do | |
| 222 } | |
| 223 | |
| 224 void TemplateTable::shouldnotreachhere() { | |
| 225 transition(vtos, vtos); | |
| 226 __ stop("shouldnotreachhere bytecode"); | |
| 227 } | |
| 228 | |
| 229 void TemplateTable::aconst_null() { | |
| 230 transition(vtos, atos); | |
| 231 __ clr(Otos_i); | |
| 232 } | |
| 233 | |
| 234 | |
| 235 void TemplateTable::iconst(int value) { | |
| 236 transition(vtos, itos); | |
| 237 __ set(value, Otos_i); | |
| 238 } | |
| 239 | |
| 240 | |
| 241 void TemplateTable::lconst(int value) { | |
| 242 transition(vtos, ltos); | |
| 243 assert(value >= 0, "check this code"); | |
| 244 #ifdef _LP64 | |
| 245 __ set(value, Otos_l); | |
| 246 #else | |
| 247 __ set(value, Otos_l2); | |
| 248 __ clr( Otos_l1); | |
| 249 #endif | |
| 250 } | |
| 251 | |
| 252 | |
| 253 void TemplateTable::fconst(int value) { | |
| 254 transition(vtos, ftos); | |
| 255 static float zero = 0.0, one = 1.0, two = 2.0; | |
| 256 float* p; | |
| 257 switch( value ) { | |
| 258 default: ShouldNotReachHere(); | |
| 259 case 0: p = &zero; break; | |
| 260 case 1: p = &one; break; | |
| 261 case 2: p = &two; break; | |
| 262 } | |
| 727 | 263 AddressLiteral a(p); |
| 264 __ sethi(a, G3_scratch); | |
| 265 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
| 0 | 266 } |
| 267 | |
| 268 | |
| 269 void TemplateTable::dconst(int value) { | |
| 270 transition(vtos, dtos); | |
| 271 static double zero = 0.0, one = 1.0; | |
| 272 double* p; | |
| 273 switch( value ) { | |
| 274 default: ShouldNotReachHere(); | |
| 275 case 0: p = &zero; break; | |
| 276 case 1: p = &one; break; | |
| 277 } | |
| 727 | 278 AddressLiteral a(p); |
| 279 __ sethi(a, G3_scratch); | |
| 280 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
| 0 | 281 } |
| 282 | |
| 283 | |
| 284 // %%%%% Should factore most snippet templates across platforms | |
| 285 | |
| 286 void TemplateTable::bipush() { | |
| 287 transition(vtos, itos); | |
| 288 __ ldsb( at_bcp(1), Otos_i ); | |
| 289 } | |
| 290 | |
| 291 void TemplateTable::sipush() { | |
| 292 transition(vtos, itos); | |
| 293 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
| 294 } | |
| 295 | |
| 296 void TemplateTable::ldc(bool wide) { | |
| 297 transition(vtos, vtos); | |
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298 Label call_ldc, notInt, isString, notString, notClass, exit; |
| 0 | 299 |
| 300 if (wide) { | |
| 301 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 302 } else { | |
| 303 __ ldub(Lbcp, 1, O1); | |
| 304 } | |
| 305 __ get_cpool_and_tags(O0, O2); | |
| 306 | |
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307 const int base_offset = ConstantPool::header_size() * wordSize; |
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308 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 309 |
| 310 // get type from tags | |
| 311 __ add(O2, tags_offset, O2); | |
| 312 __ ldub(O2, O1, O2); | |
| 3839 | 313 |
| 314 // unresolved class? If so, must resolve | |
| 315 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
| 316 | |
| 317 // unresolved class in error state | |
| 318 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
| 0 | 319 |
| 320 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
| 321 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
| 322 __ delayed()->add(O0, base_offset, O0); | |
| 323 | |
| 324 __ bind(call_ldc); | |
| 325 __ set(wide, O1); | |
| 326 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
| 327 __ push(atos); | |
| 3839 | 328 __ ba_short(exit); |
| 0 | 329 |
| 330 __ bind(notClass); | |
| 331 // __ add(O0, base_offset, O0); | |
| 332 __ sll(O1, LogBytesPerWord, O1); | |
| 333 __ cmp(O2, JVM_CONSTANT_Integer); | |
| 334 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
| 335 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
| 336 __ ld(O0, O1, Otos_i); | |
| 337 __ push(itos); | |
| 3839 | 338 __ ba_short(exit); |
| 0 | 339 |
| 340 __ bind(notInt); | |
| 341 // __ cmp(O2, JVM_CONSTANT_String); | |
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342 __ brx(Assembler::equal, true, Assembler::pt, isString); |
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343 __ delayed()->cmp(O2, JVM_CONSTANT_Object); |
| 0 | 344 __ brx(Assembler::notEqual, true, Assembler::pt, notString); |
| 345 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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346 __ bind(isString); |
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347 __ stop("string should be rewritten to fast_aldc"); |
| 3839 | 348 __ ba_short(exit); |
| 0 | 349 |
| 350 __ bind(notString); | |
| 351 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
| 352 __ push(ftos); | |
| 353 | |
| 354 __ bind(exit); | |
| 355 } | |
| 356 | |
| 1602 | 357 // Fast path for caching oop constants. |
| 358 // %%% We should use this to handle Class and String constants also. | |
| 359 // %%% It will simplify the ldc/primitive path considerably. | |
| 360 void TemplateTable::fast_aldc(bool wide) { | |
| 361 transition(vtos, atos); | |
| 362 | |
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363 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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364 Label resolved; |
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365 |
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366 // We are resolved if the resolved reference cache entry contains a |
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367 // non-null object (CallSite, etc.) |
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368 assert_different_registers(Otos_i, G3_scratch); |
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369 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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370 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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371 __ tst(Otos_i); |
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372 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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373 __ delayed()->set((int)bytecode(), O1); |
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374 |
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375 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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376 |
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377 // first time invocation - must resolve first |
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378 __ call_VM(Otos_i, entry, O1); |
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379 __ bind(resolved); |
| 1602 | 380 __ verify_oop(Otos_i); |
| 381 } | |
| 382 | |
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383 |
| 0 | 384 void TemplateTable::ldc2_w() { |
| 385 transition(vtos, vtos); | |
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386 Label Long, exit; |
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387 |
| 0 | 388 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
| 389 __ get_cpool_and_tags(O0, O2); | |
| 390 | |
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391 const int base_offset = ConstantPool::header_size() * wordSize; |
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392 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 393 // get type from tags |
| 394 __ add(O2, tags_offset, O2); | |
| 395 __ ldub(O2, O1, O2); | |
| 396 | |
| 397 __ sll(O1, LogBytesPerWord, O1); | |
| 398 __ add(O0, O1, G3_scratch); | |
| 399 | |
| 3839 | 400 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
| 0 | 401 // A double can be placed at word-aligned locations in the constant pool. |
| 402 // Check out Conversions.java for an example. | |
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403 // Also ConstantPool::header_size() is 20, which makes it very difficult |
| 0 | 404 // to double-align double on the constant pool. SG, 11/7/97 |
| 405 #ifdef _LP64 | |
| 406 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
| 407 #else | |
| 408 FloatRegister f = Ftos_d; | |
| 409 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
| 410 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
| 411 f->successor()); | |
| 412 #endif | |
| 413 __ push(dtos); | |
| 3839 | 414 __ ba_short(exit); |
| 0 | 415 |
| 416 __ bind(Long); | |
| 417 #ifdef _LP64 | |
| 418 __ ldx(G3_scratch, base_offset, Otos_l); | |
| 419 #else | |
| 420 __ ld(G3_scratch, base_offset, Otos_l); | |
| 421 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
| 422 #endif | |
| 423 __ push(ltos); | |
| 424 | |
| 425 __ bind(exit); | |
| 426 } | |
| 427 | |
| 428 | |
| 429 void TemplateTable::locals_index(Register reg, int offset) { | |
| 430 __ ldub( at_bcp(offset), reg ); | |
| 431 } | |
| 432 | |
| 433 | |
| 434 void TemplateTable::locals_index_wide(Register reg) { | |
| 435 // offset is 2, not 1, because Lbcp points to wide prefix code | |
| 436 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
| 437 } | |
| 438 | |
| 439 void TemplateTable::iload() { | |
| 440 transition(vtos, itos); | |
| 441 // Rewrite iload,iload pair into fast_iload2 | |
| 442 // iload,caload pair into fast_icaload | |
| 443 if (RewriteFrequentPairs) { | |
| 444 Label rewrite, done; | |
| 445 | |
| 446 // get next byte | |
| 447 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
| 448 | |
| 449 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 450 // last two iloads in a pair. Comparing against fast_iload means that | |
| 451 // the next bytecode is neither an iload or a caload, and therefore | |
| 452 // an iload pair. | |
| 3839 | 453 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
| 0 | 454 |
| 455 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
| 456 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 457 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
| 458 | |
| 459 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
| 460 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 461 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
| 462 | |
| 463 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
| 464 // rewrite | |
| 465 // G4_scratch: fast bytecode | |
| 466 __ bind(rewrite); | |
| 467 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
| 468 __ bind(done); | |
| 469 } | |
| 470 | |
| 471 // Get the local value into tos | |
| 472 locals_index(G3_scratch); | |
| 473 __ access_local_int( G3_scratch, Otos_i ); | |
| 474 } | |
| 475 | |
| 476 void TemplateTable::fast_iload2() { | |
| 477 transition(vtos, itos); | |
| 478 locals_index(G3_scratch); | |
| 479 __ access_local_int( G3_scratch, Otos_i ); | |
| 480 __ push_i(); | |
| 481 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
| 482 __ access_local_int( G3_scratch, Otos_i ); | |
| 483 } | |
| 484 | |
| 485 void TemplateTable::fast_iload() { | |
| 486 transition(vtos, itos); | |
| 487 locals_index(G3_scratch); | |
| 488 __ access_local_int( G3_scratch, Otos_i ); | |
| 489 } | |
| 490 | |
| 491 void TemplateTable::lload() { | |
| 492 transition(vtos, ltos); | |
| 493 locals_index(G3_scratch); | |
| 494 __ access_local_long( G3_scratch, Otos_l ); | |
| 495 } | |
| 496 | |
| 497 | |
| 498 void TemplateTable::fload() { | |
| 499 transition(vtos, ftos); | |
| 500 locals_index(G3_scratch); | |
| 501 __ access_local_float( G3_scratch, Ftos_f ); | |
| 502 } | |
| 503 | |
| 504 | |
| 505 void TemplateTable::dload() { | |
| 506 transition(vtos, dtos); | |
| 507 locals_index(G3_scratch); | |
| 508 __ access_local_double( G3_scratch, Ftos_d ); | |
| 509 } | |
| 510 | |
| 511 | |
| 512 void TemplateTable::aload() { | |
| 513 transition(vtos, atos); | |
| 514 locals_index(G3_scratch); | |
| 515 __ access_local_ptr( G3_scratch, Otos_i); | |
| 516 } | |
| 517 | |
| 518 | |
| 519 void TemplateTable::wide_iload() { | |
| 520 transition(vtos, itos); | |
| 521 locals_index_wide(G3_scratch); | |
| 522 __ access_local_int( G3_scratch, Otos_i ); | |
| 523 } | |
| 524 | |
| 525 | |
| 526 void TemplateTable::wide_lload() { | |
| 527 transition(vtos, ltos); | |
| 528 locals_index_wide(G3_scratch); | |
| 529 __ access_local_long( G3_scratch, Otos_l ); | |
| 530 } | |
| 531 | |
| 532 | |
| 533 void TemplateTable::wide_fload() { | |
| 534 transition(vtos, ftos); | |
| 535 locals_index_wide(G3_scratch); | |
| 536 __ access_local_float( G3_scratch, Ftos_f ); | |
| 537 } | |
| 538 | |
| 539 | |
| 540 void TemplateTable::wide_dload() { | |
| 541 transition(vtos, dtos); | |
| 542 locals_index_wide(G3_scratch); | |
| 543 __ access_local_double( G3_scratch, Ftos_d ); | |
| 544 } | |
| 545 | |
| 546 | |
| 547 void TemplateTable::wide_aload() { | |
| 548 transition(vtos, atos); | |
| 549 locals_index_wide(G3_scratch); | |
| 550 __ access_local_ptr( G3_scratch, Otos_i ); | |
| 551 __ verify_oop(Otos_i); | |
| 552 } | |
| 553 | |
| 554 | |
| 555 void TemplateTable::iaload() { | |
| 556 transition(itos, itos); | |
| 557 // Otos_i: index | |
| 558 // tos: array | |
| 559 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 560 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
| 561 } | |
| 562 | |
| 563 | |
| 564 void TemplateTable::laload() { | |
| 565 transition(itos, ltos); | |
| 566 // Otos_i: index | |
| 567 // O2: array | |
| 568 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 569 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
| 570 } | |
| 571 | |
| 572 | |
| 573 void TemplateTable::faload() { | |
| 574 transition(itos, ftos); | |
| 575 // Otos_i: index | |
| 576 // O2: array | |
| 577 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 578 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
| 579 } | |
| 580 | |
| 581 | |
| 582 void TemplateTable::daload() { | |
| 583 transition(itos, dtos); | |
| 584 // Otos_i: index | |
| 585 // O2: array | |
| 586 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 587 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
| 588 } | |
| 589 | |
| 590 | |
| 591 void TemplateTable::aaload() { | |
| 592 transition(itos, atos); | |
| 593 // Otos_i: index | |
| 594 // tos: array | |
|
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595 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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596 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
| 0 | 597 __ verify_oop(Otos_i); |
| 598 } | |
| 599 | |
| 600 | |
| 601 void TemplateTable::baload() { | |
| 602 transition(itos, itos); | |
| 603 // Otos_i: index | |
| 604 // tos: array | |
| 605 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
| 606 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
| 607 } | |
| 608 | |
| 609 | |
| 610 void TemplateTable::caload() { | |
| 611 transition(itos, itos); | |
| 612 // Otos_i: index | |
| 613 // tos: array | |
| 614 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 615 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 616 } | |
| 617 | |
| 618 void TemplateTable::fast_icaload() { | |
| 619 transition(vtos, itos); | |
| 620 // Otos_i: index | |
| 621 // tos: array | |
| 622 locals_index(G3_scratch); | |
| 623 __ access_local_int( G3_scratch, Otos_i ); | |
| 624 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 625 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 626 } | |
| 627 | |
| 628 | |
| 629 void TemplateTable::saload() { | |
| 630 transition(itos, itos); | |
| 631 // Otos_i: index | |
| 632 // tos: array | |
| 633 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 634 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
| 635 } | |
| 636 | |
| 637 | |
| 638 void TemplateTable::iload(int n) { | |
| 639 transition(vtos, itos); | |
| 640 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 641 } | |
| 642 | |
| 643 | |
| 644 void TemplateTable::lload(int n) { | |
| 645 transition(vtos, ltos); | |
| 646 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
| 647 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
| 648 } | |
| 649 | |
| 650 | |
| 651 void TemplateTable::fload(int n) { | |
| 652 transition(vtos, ftos); | |
| 653 assert(n < Argument::n_register_parameters, "would need more code"); | |
| 654 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
| 655 } | |
| 656 | |
| 657 | |
| 658 void TemplateTable::dload(int n) { | |
| 659 transition(vtos, dtos); | |
| 660 FloatRegister dst = Ftos_d; | |
| 661 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
| 662 } | |
| 663 | |
| 664 | |
| 665 void TemplateTable::aload(int n) { | |
| 666 transition(vtos, atos); | |
| 667 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 668 } | |
| 669 | |
| 670 | |
| 671 void TemplateTable::aload_0() { | |
| 672 transition(vtos, atos); | |
| 673 | |
| 674 // According to bytecode histograms, the pairs: | |
| 675 // | |
| 676 // _aload_0, _fast_igetfield (itos) | |
| 677 // _aload_0, _fast_agetfield (atos) | |
| 678 // _aload_0, _fast_fgetfield (ftos) | |
| 679 // | |
| 680 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 681 // bytecode checks the next bytecode and then rewrites the current | |
| 682 // bytecode into a pair bytecode; otherwise it rewrites the current | |
| 683 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 684 // | |
| 685 if (RewriteFrequentPairs) { | |
| 686 Label rewrite, done; | |
| 687 | |
| 688 // get next byte | |
| 689 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
| 690 | |
| 691 // do actual aload_0 | |
| 692 aload(0); | |
| 693 | |
| 694 // if _getfield then wait with rewrite | |
| 3839 | 695 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
| 0 | 696 |
| 697 // if _igetfield then rewrite to _fast_iaccess_0 | |
| 698 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 699 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
| 700 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 701 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
| 702 | |
| 703 // if _agetfield then rewrite to _fast_aaccess_0 | |
| 704 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 705 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
| 706 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 707 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
| 708 | |
| 709 // if _fgetfield then rewrite to _fast_faccess_0 | |
| 710 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 711 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
| 712 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 713 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
| 714 | |
| 715 // else rewrite to _fast_aload0 | |
| 716 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 717 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
| 718 | |
| 719 // rewrite | |
| 720 // G4_scratch: fast bytecode | |
| 721 __ bind(rewrite); | |
| 722 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
| 723 __ bind(done); | |
| 724 } else { | |
| 725 aload(0); | |
| 726 } | |
| 727 } | |
| 728 | |
| 729 | |
| 730 void TemplateTable::istore() { | |
| 731 transition(itos, vtos); | |
| 732 locals_index(G3_scratch); | |
| 733 __ store_local_int( G3_scratch, Otos_i ); | |
| 734 } | |
| 735 | |
| 736 | |
| 737 void TemplateTable::lstore() { | |
| 738 transition(ltos, vtos); | |
| 739 locals_index(G3_scratch); | |
| 740 __ store_local_long( G3_scratch, Otos_l ); | |
| 741 } | |
| 742 | |
| 743 | |
| 744 void TemplateTable::fstore() { | |
| 745 transition(ftos, vtos); | |
| 746 locals_index(G3_scratch); | |
| 747 __ store_local_float( G3_scratch, Ftos_f ); | |
| 748 } | |
| 749 | |
| 750 | |
| 751 void TemplateTable::dstore() { | |
| 752 transition(dtos, vtos); | |
| 753 locals_index(G3_scratch); | |
| 754 __ store_local_double( G3_scratch, Ftos_d ); | |
| 755 } | |
| 756 | |
| 757 | |
| 758 void TemplateTable::astore() { | |
| 759 transition(vtos, vtos); | |
| 1506 | 760 __ load_ptr(0, Otos_i); |
| 761 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 762 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 763 locals_index(G3_scratch); | |
| 1506 | 764 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 765 } |
| 766 | |
| 767 | |
| 768 void TemplateTable::wide_istore() { | |
| 769 transition(vtos, vtos); | |
| 770 __ pop_i(); | |
| 771 locals_index_wide(G3_scratch); | |
| 772 __ store_local_int( G3_scratch, Otos_i ); | |
| 773 } | |
| 774 | |
| 775 | |
| 776 void TemplateTable::wide_lstore() { | |
| 777 transition(vtos, vtos); | |
| 778 __ pop_l(); | |
| 779 locals_index_wide(G3_scratch); | |
| 780 __ store_local_long( G3_scratch, Otos_l ); | |
| 781 } | |
| 782 | |
| 783 | |
| 784 void TemplateTable::wide_fstore() { | |
| 785 transition(vtos, vtos); | |
| 786 __ pop_f(); | |
| 787 locals_index_wide(G3_scratch); | |
| 788 __ store_local_float( G3_scratch, Ftos_f ); | |
| 789 } | |
| 790 | |
| 791 | |
| 792 void TemplateTable::wide_dstore() { | |
| 793 transition(vtos, vtos); | |
| 794 __ pop_d(); | |
| 795 locals_index_wide(G3_scratch); | |
| 796 __ store_local_double( G3_scratch, Ftos_d ); | |
| 797 } | |
| 798 | |
| 799 | |
| 800 void TemplateTable::wide_astore() { | |
| 801 transition(vtos, vtos); | |
| 1506 | 802 __ load_ptr(0, Otos_i); |
| 803 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 804 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 805 locals_index_wide(G3_scratch); | |
| 1506 | 806 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 807 } |
| 808 | |
| 809 | |
| 810 void TemplateTable::iastore() { | |
| 811 transition(itos, vtos); | |
| 812 __ pop_i(O2); // index | |
| 813 // Otos_i: val | |
| 814 // O3: array | |
| 815 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 816 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
| 817 } | |
| 818 | |
| 819 | |
| 820 void TemplateTable::lastore() { | |
| 821 transition(ltos, vtos); | |
| 822 __ pop_i(O2); // index | |
| 823 // Otos_l: val | |
| 824 // O3: array | |
| 825 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 826 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
| 827 } | |
| 828 | |
| 829 | |
| 830 void TemplateTable::fastore() { | |
| 831 transition(ftos, vtos); | |
| 832 __ pop_i(O2); // index | |
| 833 // Ftos_f: val | |
| 834 // O3: array | |
| 835 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 836 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
| 837 } | |
| 838 | |
| 839 | |
| 840 void TemplateTable::dastore() { | |
| 841 transition(dtos, vtos); | |
| 842 __ pop_i(O2); // index | |
| 843 // Fos_d: val | |
| 844 // O3: array | |
| 845 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 846 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
| 847 } | |
| 848 | |
| 849 | |
| 850 void TemplateTable::aastore() { | |
| 851 Label store_ok, is_null, done; | |
| 852 transition(vtos, vtos); | |
| 853 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 854 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
| 855 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
| 856 // Otos_i: val | |
| 857 // O2: index | |
| 858 // O3: array | |
| 859 __ verify_oop(Otos_i); | |
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860 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
| 0 | 861 |
| 862 // do array store check - check for NULL value first | |
| 3839 | 863 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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864 |
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865 __ load_klass(O3, O4); // get array klass |
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866 __ load_klass(Otos_i, O5); // get value klass |
| 0 | 867 |
| 868 // do fast instanceof cache test | |
| 869 | |
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870 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
| 0 | 871 |
| 872 assert(Otos_i == O0, "just checking"); | |
| 873 | |
| 874 // Otos_i: value | |
| 875 // O1: addr - offset | |
| 876 // O2: index | |
| 877 // O3: array | |
| 878 // O4: array element klass | |
| 879 // O5: value klass | |
| 880 | |
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881 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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882 |
| 0 | 883 // Generate a fast subtype check. Branch to store_ok if no |
| 884 // failure. Throw if failure. | |
| 885 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
| 886 | |
| 887 // Not a subtype; so must throw exception | |
| 888 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
| 889 | |
| 890 // Store is OK. | |
| 891 __ bind(store_ok); | |
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892 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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893 |
| 3839 | 894 __ ba(done); |
| 1506 | 895 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 896 |
| 897 __ bind(is_null); | |
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898 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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899 |
| 0 | 900 __ profile_null_seen(G3_scratch); |
| 1506 | 901 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 902 __ bind(done); |
| 903 } | |
| 904 | |
| 905 | |
| 906 void TemplateTable::bastore() { | |
| 907 transition(itos, vtos); | |
| 908 __ pop_i(O2); // index | |
| 909 // Otos_i: val | |
| 910 // O3: array | |
| 911 __ index_check(O3, O2, 0, G3_scratch, O2); | |
| 912 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
| 913 } | |
| 914 | |
| 915 | |
| 916 void TemplateTable::castore() { | |
| 917 transition(itos, vtos); | |
| 918 __ pop_i(O2); // index | |
| 919 // Otos_i: val | |
| 920 // O3: array | |
| 921 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
| 922 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
| 923 } | |
| 924 | |
| 925 | |
| 926 void TemplateTable::sastore() { | |
| 927 // %%%%% Factor across platform | |
| 928 castore(); | |
| 929 } | |
| 930 | |
| 931 | |
| 932 void TemplateTable::istore(int n) { | |
| 933 transition(itos, vtos); | |
| 934 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 935 } | |
| 936 | |
| 937 | |
| 938 void TemplateTable::lstore(int n) { | |
| 939 transition(ltos, vtos); | |
| 940 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
| 941 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 942 | |
| 943 } | |
| 944 | |
| 945 | |
| 946 void TemplateTable::fstore(int n) { | |
| 947 transition(ftos, vtos); | |
| 948 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
| 949 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 950 } | |
| 951 | |
| 952 | |
| 953 void TemplateTable::dstore(int n) { | |
| 954 transition(dtos, vtos); | |
| 955 FloatRegister src = Ftos_d; | |
| 956 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 957 } | |
| 958 | |
| 959 | |
| 960 void TemplateTable::astore(int n) { | |
| 961 transition(vtos, vtos); | |
| 1506 | 962 __ load_ptr(0, Otos_i); |
| 963 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 964 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 1506 | 965 __ store_local_ptr(n, Otos_i); |
| 0 | 966 } |
| 967 | |
| 968 | |
| 969 void TemplateTable::pop() { | |
| 970 transition(vtos, vtos); | |
| 1506 | 971 __ inc(Lesp, Interpreter::stackElementSize); |
| 0 | 972 } |
| 973 | |
| 974 | |
| 975 void TemplateTable::pop2() { | |
| 976 transition(vtos, vtos); | |
| 1506 | 977 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
| 0 | 978 } |
| 979 | |
| 980 | |
| 981 void TemplateTable::dup() { | |
| 982 transition(vtos, vtos); | |
| 983 // stack: ..., a | |
| 984 // load a and tag | |
| 1506 | 985 __ load_ptr(0, Otos_i); |
| 986 __ push_ptr(Otos_i); | |
| 0 | 987 // stack: ..., a, a |
| 988 } | |
| 989 | |
| 990 | |
| 991 void TemplateTable::dup_x1() { | |
| 992 transition(vtos, vtos); | |
| 993 // stack: ..., a, b | |
| 1506 | 994 __ load_ptr( 1, G3_scratch); // get a |
| 995 __ load_ptr( 0, Otos_l1); // get b | |
| 996 __ store_ptr(1, Otos_l1); // put b | |
| 997 __ store_ptr(0, G3_scratch); // put a - like swap | |
| 998 __ push_ptr(Otos_l1); // push b | |
| 0 | 999 // stack: ..., b, a, b |
| 1000 } | |
| 1001 | |
| 1002 | |
| 1003 void TemplateTable::dup_x2() { | |
| 1004 transition(vtos, vtos); | |
| 1005 // stack: ..., a, b, c | |
| 1006 // get c and push on stack, reuse registers | |
| 1506 | 1007 __ load_ptr( 0, G3_scratch); // get c |
| 1008 __ push_ptr(G3_scratch); // push c with tag | |
| 0 | 1009 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
| 1010 // (stack offsets n+1 now) | |
| 1506 | 1011 __ load_ptr( 3, Otos_l1); // get a |
| 1012 __ store_ptr(3, G3_scratch); // put c at 3 | |
| 0 | 1013 // stack: ..., c, b, c, c (a in reg) |
| 1506 | 1014 __ load_ptr( 2, G3_scratch); // get b |
| 1015 __ store_ptr(2, Otos_l1); // put a at 2 | |
| 0 | 1016 // stack: ..., c, a, c, c (b in reg) |
| 1506 | 1017 __ store_ptr(1, G3_scratch); // put b at 1 |
| 0 | 1018 // stack: ..., c, a, b, c |
| 1019 } | |
| 1020 | |
| 1021 | |
| 1022 void TemplateTable::dup2() { | |
| 1023 transition(vtos, vtos); | |
| 1506 | 1024 __ load_ptr(1, G3_scratch); // get a |
| 1025 __ load_ptr(0, Otos_l1); // get b | |
| 1026 __ push_ptr(G3_scratch); // push a | |
| 1027 __ push_ptr(Otos_l1); // push b | |
| 0 | 1028 // stack: ..., a, b, a, b |
| 1029 } | |
| 1030 | |
| 1031 | |
| 1032 void TemplateTable::dup2_x1() { | |
| 1033 transition(vtos, vtos); | |
| 1034 // stack: ..., a, b, c | |
| 1506 | 1035 __ load_ptr( 1, Lscratch); // get b |
| 1036 __ load_ptr( 2, Otos_l1); // get a | |
| 1037 __ store_ptr(2, Lscratch); // put b at a | |
| 0 | 1038 // stack: ..., b, b, c |
| 1506 | 1039 __ load_ptr( 0, G3_scratch); // get c |
| 1040 __ store_ptr(1, G3_scratch); // put c at b | |
| 0 | 1041 // stack: ..., b, c, c |
| 1506 | 1042 __ store_ptr(0, Otos_l1); // put a at c |
| 0 | 1043 // stack: ..., b, c, a |
| 1506 | 1044 __ push_ptr(Lscratch); // push b |
| 1045 __ push_ptr(G3_scratch); // push c | |
| 0 | 1046 // stack: ..., b, c, a, b, c |
| 1047 } | |
| 1048 | |
| 1049 | |
| 1050 // The spec says that these types can be a mixture of category 1 (1 word) | |
| 1051 // types and/or category 2 types (long and doubles) | |
| 1052 void TemplateTable::dup2_x2() { | |
| 1053 transition(vtos, vtos); | |
| 1054 // stack: ..., a, b, c, d | |
| 1506 | 1055 __ load_ptr( 1, Lscratch); // get c |
| 1056 __ load_ptr( 3, Otos_l1); // get a | |
| 1057 __ store_ptr(3, Lscratch); // put c at 3 | |
| 1058 __ store_ptr(1, Otos_l1); // put a at 1 | |
| 0 | 1059 // stack: ..., c, b, a, d |
| 1506 | 1060 __ load_ptr( 2, G3_scratch); // get b |
| 1061 __ load_ptr( 0, Otos_l1); // get d | |
| 1062 __ store_ptr(0, G3_scratch); // put b at 0 | |
| 1063 __ store_ptr(2, Otos_l1); // put d at 2 | |
| 0 | 1064 // stack: ..., c, d, a, b |
| 1506 | 1065 __ push_ptr(Lscratch); // push c |
| 1066 __ push_ptr(Otos_l1); // push d | |
| 0 | 1067 // stack: ..., c, d, a, b, c, d |
| 1068 } | |
| 1069 | |
| 1070 | |
| 1071 void TemplateTable::swap() { | |
| 1072 transition(vtos, vtos); | |
| 1073 // stack: ..., a, b | |
| 1506 | 1074 __ load_ptr( 1, G3_scratch); // get a |
| 1075 __ load_ptr( 0, Otos_l1); // get b | |
| 1076 __ store_ptr(0, G3_scratch); // put b | |
| 1077 __ store_ptr(1, Otos_l1); // put a | |
| 0 | 1078 // stack: ..., b, a |
| 1079 } | |
| 1080 | |
| 1081 | |
| 1082 void TemplateTable::iop2(Operation op) { | |
| 1083 transition(itos, itos); | |
| 1084 __ pop_i(O1); | |
| 1085 switch (op) { | |
| 1086 case add: __ add(O1, Otos_i, Otos_i); break; | |
| 1087 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
| 1088 // %%%%% Mul may not exist: better to call .mul? | |
| 1089 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
| 1506 | 1090 case _and: __ and3(O1, Otos_i, Otos_i); break; |
| 1091 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
| 1092 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
| 0 | 1093 case shl: __ sll(O1, Otos_i, Otos_i); break; |
| 1094 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
| 1095 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
| 1096 default: ShouldNotReachHere(); | |
| 1097 } | |
| 1098 } | |
| 1099 | |
| 1100 | |
| 1101 void TemplateTable::lop2(Operation op) { | |
| 1102 transition(ltos, ltos); | |
| 1103 __ pop_l(O2); | |
| 1104 switch (op) { | |
| 1105 #ifdef _LP64 | |
| 1506 | 1106 case add: __ add(O2, Otos_l, Otos_l); break; |
| 1107 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
| 1108 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
| 1109 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
| 1110 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
| 0 | 1111 #else |
| 1112 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
| 1113 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
| 1506 | 1114 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
| 1115 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
| 1116 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
| 0 | 1117 #endif |
| 1118 default: ShouldNotReachHere(); | |
| 1119 } | |
| 1120 } | |
| 1121 | |
| 1122 | |
| 1123 void TemplateTable::idiv() { | |
| 1124 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
| 1125 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
| 1126 | |
| 1127 transition(itos, itos); | |
| 1128 __ pop_i(O1); // get 1st op | |
| 1129 | |
| 1130 // Y contains upper 32 bits of result, set it to 0 or all ones | |
| 1131 __ wry(G0); | |
| 1132 __ mov(~0, G3_scratch); | |
| 1133 | |
| 1134 __ tst(O1); | |
| 1135 Label neg; | |
| 1136 __ br(Assembler::negative, true, Assembler::pn, neg); | |
| 1137 __ delayed()->wry(G3_scratch); | |
| 1138 __ bind(neg); | |
| 1139 | |
| 1140 Label ok; | |
| 1141 __ tst(Otos_i); | |
| 1142 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
| 1143 | |
| 1144 const int min_int = 0x80000000; | |
| 1145 Label regular; | |
| 1146 __ cmp(Otos_i, -1); | |
| 1147 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
| 1148 #ifdef _LP64 | |
| 1149 // Don't put set in delay slot | |
| 1150 // Set will turn into multiple instructions in 64 bit mode | |
| 1151 __ delayed()->nop(); | |
| 1152 __ set(min_int, G4_scratch); | |
| 1153 #else | |
| 1154 __ delayed()->set(min_int, G4_scratch); | |
| 1155 #endif | |
| 1156 Label done; | |
| 1157 __ cmp(O1, G4_scratch); | |
| 1158 __ br(Assembler::equal, true, Assembler::pt, done); | |
| 1159 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
| 1160 | |
| 1161 __ bind(regular); | |
| 1162 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
| 1163 __ bind(done); | |
| 1164 } | |
| 1165 | |
| 1166 | |
| 1167 void TemplateTable::irem() { | |
| 1168 transition(itos, itos); | |
| 1169 __ mov(Otos_i, O2); // save divisor | |
| 1170 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
| 1171 __ smul(Otos_i, O2, Otos_i); | |
| 1172 __ sub(O1, Otos_i, Otos_i); | |
| 1173 } | |
| 1174 | |
| 1175 | |
| 1176 void TemplateTable::lmul() { | |
| 1177 transition(ltos, ltos); | |
| 1178 __ pop_l(O2); | |
| 1179 #ifdef _LP64 | |
| 1180 __ mulx(Otos_l, O2, Otos_l); | |
| 1181 #else | |
| 1182 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
| 1183 #endif | |
| 1184 | |
| 1185 } | |
| 1186 | |
| 1187 | |
| 1188 void TemplateTable::ldiv() { | |
| 1189 transition(ltos, ltos); | |
| 1190 | |
| 1191 // check for zero | |
| 1192 __ pop_l(O2); | |
| 1193 #ifdef _LP64 | |
| 1194 __ tst(Otos_l); | |
| 1195 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1196 __ sdivx(O2, Otos_l, Otos_l); | |
| 1197 #else | |
| 1198 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1199 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1200 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 1201 #endif | |
| 1202 } | |
| 1203 | |
| 1204 | |
| 1205 void TemplateTable::lrem() { | |
| 1206 transition(ltos, ltos); | |
| 1207 | |
| 1208 // check for zero | |
| 1209 __ pop_l(O2); | |
| 1210 #ifdef _LP64 | |
| 1211 __ tst(Otos_l); | |
| 1212 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1213 __ sdivx(O2, Otos_l, Otos_l2); | |
| 1214 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
| 1215 __ sub (O2, Otos_l2, Otos_l); | |
| 1216 #else | |
| 1217 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1218 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1219 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 1220 #endif | |
| 1221 } | |
| 1222 | |
| 1223 | |
| 1224 void TemplateTable::lshl() { | |
| 1225 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
| 1226 | |
| 1227 __ pop_l(O2); // shift value in O2, O3 | |
| 1228 #ifdef _LP64 | |
| 1229 __ sllx(O2, Otos_i, Otos_l); | |
| 1230 #else | |
| 1231 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1232 #endif | |
| 1233 } | |
| 1234 | |
| 1235 | |
| 1236 void TemplateTable::lshr() { | |
| 1237 transition(itos, ltos); // %%%% see lshl comment | |
| 1238 | |
| 1239 __ pop_l(O2); // shift value in O2, O3 | |
| 1240 #ifdef _LP64 | |
| 1241 __ srax(O2, Otos_i, Otos_l); | |
| 1242 #else | |
| 1243 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1244 #endif | |
| 1245 } | |
| 1246 | |
| 1247 | |
| 1248 | |
| 1249 void TemplateTable::lushr() { | |
| 1250 transition(itos, ltos); // %%%% see lshl comment | |
| 1251 | |
| 1252 __ pop_l(O2); // shift value in O2, O3 | |
| 1253 #ifdef _LP64 | |
| 1254 __ srlx(O2, Otos_i, Otos_l); | |
| 1255 #else | |
| 1256 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1257 #endif | |
| 1258 } | |
| 1259 | |
| 1260 | |
| 1261 void TemplateTable::fop2(Operation op) { | |
| 1262 transition(ftos, ftos); | |
| 1263 switch (op) { | |
| 1264 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1265 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1266 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1267 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1268 case rem: | |
| 1269 assert(Ftos_f == F0, "just checking"); | |
| 1270 #ifdef _LP64 | |
| 1271 // LP64 calling conventions use F1, F3 for passing 2 floats | |
| 1272 __ pop_f(F1); | |
| 1273 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
| 1274 #else | |
| 1275 __ pop_i(O0); | |
| 1276 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
| 1277 __ ld( __ d_tmp, O1 ); | |
| 1278 #endif | |
| 1279 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
| 1280 assert( Ftos_f == F0, "fix this code" ); | |
| 1281 break; | |
| 1282 | |
| 1283 default: ShouldNotReachHere(); | |
| 1284 } | |
| 1285 } | |
| 1286 | |
| 1287 | |
| 1288 void TemplateTable::dop2(Operation op) { | |
| 1289 transition(dtos, dtos); | |
| 1290 switch (op) { | |
| 1291 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1292 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1293 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1294 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1295 case rem: | |
| 1296 #ifdef _LP64 | |
| 1297 // Pass arguments in D0, D2 | |
| 1298 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
| 1299 __ pop_d( F0 ); | |
| 1300 #else | |
| 1301 // Pass arguments in O0O1, O2O3 | |
| 1302 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1303 __ ldd( __ d_tmp, O2 ); | |
| 1304 __ pop_d(Ftos_f); | |
| 1305 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1306 __ ldd( __ d_tmp, O0 ); | |
| 1307 #endif | |
| 1308 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
| 1309 assert( Ftos_d == F0, "fix this code" ); | |
| 1310 break; | |
| 1311 | |
| 1312 default: ShouldNotReachHere(); | |
| 1313 } | |
| 1314 } | |
| 1315 | |
| 1316 | |
| 1317 void TemplateTable::ineg() { | |
| 1318 transition(itos, itos); | |
| 1319 __ neg(Otos_i); | |
| 1320 } | |
| 1321 | |
| 1322 | |
| 1323 void TemplateTable::lneg() { | |
| 1324 transition(ltos, ltos); | |
| 1325 #ifdef _LP64 | |
| 1326 __ sub(G0, Otos_l, Otos_l); | |
| 1327 #else | |
| 1328 __ lneg(Otos_l1, Otos_l2); | |
| 1329 #endif | |
| 1330 } | |
| 1331 | |
| 1332 | |
| 1333 void TemplateTable::fneg() { | |
| 1334 transition(ftos, ftos); | |
| 1335 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
| 1336 } | |
| 1337 | |
| 1338 | |
| 1339 void TemplateTable::dneg() { | |
| 1340 transition(dtos, dtos); | |
| 1341 // v8 has fnegd if source and dest are the same | |
| 1342 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
| 1343 } | |
| 1344 | |
| 1345 | |
| 1346 void TemplateTable::iinc() { | |
| 1347 transition(vtos, vtos); | |
| 1348 locals_index(G3_scratch); | |
| 1349 __ ldsb(Lbcp, 2, O2); // load constant | |
| 1350 __ access_local_int(G3_scratch, Otos_i); | |
| 1351 __ add(Otos_i, O2, Otos_i); | |
| 1506 | 1352 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1353 } |
| 1354 | |
| 1355 | |
| 1356 void TemplateTable::wide_iinc() { | |
| 1357 transition(vtos, vtos); | |
| 1358 locals_index_wide(G3_scratch); | |
| 1359 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
| 1360 __ access_local_int(G3_scratch, Otos_i); | |
| 1361 __ add(Otos_i, O3, Otos_i); | |
| 1506 | 1362 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1363 } |
| 1364 | |
| 1365 | |
| 1366 void TemplateTable::convert() { | |
| 1367 // %%%%% Factor this first part accross platforms | |
| 1368 #ifdef ASSERT | |
| 1369 TosState tos_in = ilgl; | |
| 1370 TosState tos_out = ilgl; | |
| 1371 switch (bytecode()) { | |
| 1372 case Bytecodes::_i2l: // fall through | |
| 1373 case Bytecodes::_i2f: // fall through | |
| 1374 case Bytecodes::_i2d: // fall through | |
| 1375 case Bytecodes::_i2b: // fall through | |
| 1376 case Bytecodes::_i2c: // fall through | |
| 1377 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1378 case Bytecodes::_l2i: // fall through | |
| 1379 case Bytecodes::_l2f: // fall through | |
| 1380 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1381 case Bytecodes::_f2i: // fall through | |
| 1382 case Bytecodes::_f2l: // fall through | |
| 1383 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1384 case Bytecodes::_d2i: // fall through | |
| 1385 case Bytecodes::_d2l: // fall through | |
| 1386 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1387 default : ShouldNotReachHere(); | |
| 1388 } | |
| 1389 switch (bytecode()) { | |
| 1390 case Bytecodes::_l2i: // fall through | |
| 1391 case Bytecodes::_f2i: // fall through | |
| 1392 case Bytecodes::_d2i: // fall through | |
| 1393 case Bytecodes::_i2b: // fall through | |
| 1394 case Bytecodes::_i2c: // fall through | |
| 1395 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1396 case Bytecodes::_i2l: // fall through | |
| 1397 case Bytecodes::_f2l: // fall through | |
| 1398 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1399 case Bytecodes::_i2f: // fall through | |
| 1400 case Bytecodes::_l2f: // fall through | |
| 1401 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1402 case Bytecodes::_i2d: // fall through | |
| 1403 case Bytecodes::_l2d: // fall through | |
| 1404 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1405 default : ShouldNotReachHere(); | |
| 1406 } | |
| 1407 transition(tos_in, tos_out); | |
| 1408 #endif | |
| 1409 | |
| 1410 | |
| 1411 // Conversion | |
| 1412 Label done; | |
| 1413 switch (bytecode()) { | |
| 1414 case Bytecodes::_i2l: | |
| 1415 #ifdef _LP64 | |
| 1416 // Sign extend the 32 bits | |
| 1417 __ sra ( Otos_i, 0, Otos_l ); | |
| 1418 #else | |
| 1419 __ addcc(Otos_i, 0, Otos_l2); | |
| 1420 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
| 1421 __ delayed()->clr(Otos_l1); | |
| 1422 __ set(~0, Otos_l1); | |
| 1423 #endif | |
| 1424 break; | |
| 1425 | |
| 1426 case Bytecodes::_i2f: | |
| 1427 __ st(Otos_i, __ d_tmp ); | |
| 1428 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1429 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
| 1430 break; | |
| 1431 | |
| 1432 case Bytecodes::_i2d: | |
| 1433 __ st(Otos_i, __ d_tmp); | |
| 1434 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1435 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
| 1436 break; | |
| 1437 | |
| 1438 case Bytecodes::_i2b: | |
| 1439 __ sll(Otos_i, 24, Otos_i); | |
| 1440 __ sra(Otos_i, 24, Otos_i); | |
| 1441 break; | |
| 1442 | |
| 1443 case Bytecodes::_i2c: | |
| 1444 __ sll(Otos_i, 16, Otos_i); | |
| 1445 __ srl(Otos_i, 16, Otos_i); | |
| 1446 break; | |
| 1447 | |
| 1448 case Bytecodes::_i2s: | |
| 1449 __ sll(Otos_i, 16, Otos_i); | |
| 1450 __ sra(Otos_i, 16, Otos_i); | |
| 1451 break; | |
| 1452 | |
| 1453 case Bytecodes::_l2i: | |
| 1454 #ifndef _LP64 | |
| 1455 __ mov(Otos_l2, Otos_i); | |
| 1456 #else | |
| 1457 // Sign-extend into the high 32 bits | |
| 1458 __ sra(Otos_l, 0, Otos_i); | |
| 1459 #endif | |
| 1460 break; | |
| 1461 | |
| 1462 case Bytecodes::_l2f: | |
| 1463 case Bytecodes::_l2d: | |
| 1464 __ st_long(Otos_l, __ d_tmp); | |
| 1465 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
| 1466 | |
| 1467 if (VM_Version::v9_instructions_work()) { | |
| 1468 if (bytecode() == Bytecodes::_l2f) { | |
| 1469 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1470 } else { | |
| 1471 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
| 1472 } | |
| 1473 } else { | |
| 1474 __ call_VM_leaf( | |
| 1475 Lscratch, | |
| 1476 bytecode() == Bytecodes::_l2f | |
| 1477 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
| 1478 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
| 1479 ); | |
| 1480 } | |
| 1481 break; | |
| 1482 | |
| 1483 case Bytecodes::_f2i: { | |
| 1484 Label isNaN; | |
| 1485 // result must be 0 if value is NaN; test by comparing value to itself | |
| 1486 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
| 1487 // According to the v8 manual, you have to have a non-fp instruction | |
| 1488 // between fcmp and fb. | |
| 1489 if (!VM_Version::v9_instructions_work()) { | |
| 1490 __ nop(); | |
| 1491 } | |
| 1492 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
| 1493 __ delayed()->clr(Otos_i); // NaN | |
| 1494 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
| 1495 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
| 1496 __ ld(__ d_tmp, Otos_i); | |
| 1497 __ bind(isNaN); | |
| 1498 } | |
| 1499 break; | |
| 1500 | |
| 1501 case Bytecodes::_f2l: | |
| 1502 // must uncache tos | |
| 1503 __ push_f(); | |
| 1504 #ifdef _LP64 | |
| 1505 __ pop_f(F1); | |
| 1506 #else | |
| 1507 __ pop_i(O0); | |
| 1508 #endif | |
| 1509 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
| 1510 break; | |
| 1511 | |
| 1512 case Bytecodes::_f2d: | |
| 1513 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
| 1514 break; | |
| 1515 | |
| 1516 case Bytecodes::_d2i: | |
| 1517 case Bytecodes::_d2l: | |
| 1518 // must uncache tos | |
| 1519 __ push_d(); | |
| 1520 #ifdef _LP64 | |
| 1521 // LP64 calling conventions pass first double arg in D0 | |
| 1522 __ pop_d( Ftos_d ); | |
| 1523 #else | |
| 1524 __ pop_i( O0 ); | |
| 1525 __ pop_i( O1 ); | |
| 1526 #endif | |
| 1527 __ call_VM_leaf(Lscratch, | |
| 1528 bytecode() == Bytecodes::_d2i | |
| 1529 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
| 1530 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
| 1531 break; | |
| 1532 | |
| 1533 case Bytecodes::_d2f: | |
| 1534 if (VM_Version::v9_instructions_work()) { | |
| 1535 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1536 } | |
| 1537 else { | |
| 1538 // must uncache tos | |
| 1539 __ push_d(); | |
| 1540 __ pop_i(O0); | |
| 1541 __ pop_i(O1); | |
| 1542 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
| 1543 } | |
| 1544 break; | |
| 1545 | |
| 1546 default: ShouldNotReachHere(); | |
| 1547 } | |
| 1548 __ bind(done); | |
| 1549 } | |
| 1550 | |
| 1551 | |
| 1552 void TemplateTable::lcmp() { | |
| 1553 transition(ltos, itos); | |
| 1554 | |
| 1555 #ifdef _LP64 | |
| 1556 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
| 1557 __ lcmp( O1, Otos_l, Otos_i ); | |
| 1558 #else | |
| 1559 __ pop_l(O2); // cmp O2,3 to O0,1 | |
| 1560 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
| 1561 #endif | |
| 1562 } | |
| 1563 | |
| 1564 | |
| 1565 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1566 | |
| 1567 if (is_float) __ pop_f(F2); | |
| 1568 else __ pop_d(F2); | |
| 1569 | |
| 1570 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
| 1571 | |
| 1572 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
| 1573 } | |
| 1574 | |
| 1575 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1576 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
| 1577 __ verify_thread(); | |
| 1578 | |
| 1579 const Register O2_bumped_count = O2; | |
| 1580 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
| 1581 | |
| 1582 // get (wide) offset to O1_disp | |
| 1583 const Register O1_disp = O1; | |
| 1584 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
| 1585 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
| 1586 | |
| 1587 // Handle all the JSR stuff here, then exit. | |
| 1588 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1589 // non-JSR normal-branch stuff occurring below. |
| 0 | 1590 if( is_jsr ) { |
| 1591 // compute return address as bci in Otos_i | |
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1592 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1593 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1594 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
| 0 | 1595 |
| 1596 // Bump Lbcp to target of JSR | |
| 1597 __ add(Lbcp, O1_disp, Lbcp); | |
| 1598 // Push returnAddress for "ret" on stack | |
| 1506 | 1599 __ push_ptr(Otos_i); |
| 0 | 1600 // And away we go! |
| 1601 __ dispatch_next(vtos); | |
| 1602 return; | |
| 1603 } | |
| 1604 | |
| 1605 // Normal (non-jsr) branch handling | |
| 1606 | |
| 1607 // Save the current Lbcp | |
| 1608 const Register O0_cur_bcp = O0; | |
| 1609 __ mov( Lbcp, O0_cur_bcp ); | |
| 1610 | |
| 1783 | 1611 |
| 0 | 1612 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
| 1613 if ( increment_invocation_counter_for_backward_branches ) { | |
| 1614 Label Lforward; | |
| 1615 // check branch direction | |
| 1616 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
| 1617 // Bump bytecode pointer by displacement (take the branch) | |
| 1618 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
| 1619 | |
| 1783 | 1620 if (TieredCompilation) { |
| 1621 Label Lno_mdo, Loverflow; | |
| 1622 int increment = InvocationCounter::count_increment; | |
| 1623 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1624 if (ProfileInterpreter) { | |
| 1625 // If no method data exists, go to profile_continue. | |
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1626 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
| 3839 | 1627 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
| 1783 | 1628 |
| 1629 // Increment backedge counter in the MDO | |
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1630 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1631 in_bytes(InvocationCounter::counter_offset())); |
| 1632 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1633 Assembler::notZero, &Lforward); | |
| 3839 | 1634 __ ba_short(Loverflow); |
| 0 | 1635 } |
| 1783 | 1636 |
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1637 // If there's no MDO, increment counter in Method* |
| 1783 | 1638 __ bind(Lno_mdo); |
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1639 Address backedge_counter(Lmethod, in_bytes(Method::backedge_counter_offset()) + |
| 1783 | 1640 in_bytes(InvocationCounter::counter_offset())); |
| 1641 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1642 Assembler::notZero, &Lforward); | |
| 1643 __ bind(Loverflow); | |
| 1644 | |
| 1645 // notify point for loop, pass branch bytecode | |
| 1646 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
| 1647 | |
| 1648 // Was an OSR adapter generated? | |
| 1649 // O0 = osr nmethod | |
| 3839 | 1650 __ br_null_short(O0, Assembler::pn, Lforward); |
| 1783 | 1651 |
| 1652 // Has the nmethod been invalidated already? | |
| 1653 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
| 3839 | 1654 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
| 1783 | 1655 |
| 1656 // migrate the interpreter frame off of the stack | |
| 1657 | |
| 1658 __ mov(G2_thread, L7); | |
| 1659 // save nmethod | |
| 1660 __ mov(O0, L6); | |
| 1661 __ set_last_Java_frame(SP, noreg); | |
| 1662 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
| 1663 __ reset_last_Java_frame(); | |
| 1664 __ mov(L7, G2_thread); | |
| 1665 | |
| 1666 // move OSR nmethod to I1 | |
| 1667 __ mov(L6, I1); | |
| 1668 | |
| 1669 // OSR buffer to I0 | |
| 1670 __ mov(O0, I0); | |
| 1671 | |
| 1672 // remove the interpreter frame | |
| 1673 __ restore(I5_savedSP, 0, SP); | |
| 1674 | |
| 1675 // Jump to the osr code. | |
| 1676 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
| 1677 __ jmp(O2, G0); | |
| 1678 __ delayed()->nop(); | |
| 1679 | |
| 0 | 1680 } else { |
| 1783 | 1681 // Update Backedge branch separately from invocations |
| 1682 const Register G4_invoke_ctr = G4; | |
| 1683 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
| 1684 if (ProfileInterpreter) { | |
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1685 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
| 1783 | 1686 if (UseOnStackReplacement) { |
| 1687 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
| 1688 } | |
| 1689 } else { | |
| 1690 if (UseOnStackReplacement) { | |
| 1691 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
| 1692 } | |
| 0 | 1693 } |
| 1694 } | |
| 1695 | |
| 1696 __ bind(Lforward); | |
| 1697 } else | |
| 1698 // Bump bytecode pointer by displacement (take the branch) | |
| 1699 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
| 1700 | |
| 1701 // continue with bytecode @ target | |
| 1702 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
| 1703 // %%%%% and changing dispatch_next to dispatch_only | |
| 1704 __ dispatch_next(vtos); | |
| 1705 } | |
| 1706 | |
| 1707 | |
| 1708 // Note Condition in argument is TemplateTable::Condition | |
| 1709 // arg scope is within class scope | |
| 1710 | |
| 1711 void TemplateTable::if_0cmp(Condition cc) { | |
| 1712 // no pointers, integer only! | |
| 1713 transition(itos, vtos); | |
| 1714 // assume branch is more often taken than not (loops use backward branches) | |
| 1715 __ cmp( Otos_i, 0); | |
| 1716 __ if_cmp(ccNot(cc), false); | |
| 1717 } | |
| 1718 | |
| 1719 | |
| 1720 void TemplateTable::if_icmp(Condition cc) { | |
| 1721 transition(itos, vtos); | |
| 1722 __ pop_i(O1); | |
| 1723 __ cmp(O1, Otos_i); | |
| 1724 __ if_cmp(ccNot(cc), false); | |
| 1725 } | |
| 1726 | |
| 1727 | |
| 1728 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1729 transition(atos, vtos); | |
| 1730 __ tst(Otos_i); | |
| 1731 __ if_cmp(ccNot(cc), true); | |
| 1732 } | |
| 1733 | |
| 1734 | |
| 1735 void TemplateTable::if_acmp(Condition cc) { | |
| 1736 transition(atos, vtos); | |
| 1737 __ pop_ptr(O1); | |
| 1738 __ verify_oop(O1); | |
| 1739 __ verify_oop(Otos_i); | |
| 1740 __ cmp(O1, Otos_i); | |
| 1741 __ if_cmp(ccNot(cc), true); | |
| 1742 } | |
| 1743 | |
| 1744 | |
| 1745 | |
| 1746 void TemplateTable::ret() { | |
| 1747 transition(vtos, vtos); | |
| 1748 locals_index(G3_scratch); | |
| 1749 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1750 // Otos_i contains the bci, compute the bcp from that | |
| 1751 | |
| 1752 #ifdef _LP64 | |
| 1753 #ifdef ASSERT | |
| 1754 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
| 1755 // the result. The return address (really a BCI) was stored with an | |
| 1756 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
| 1757 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
| 1758 // loaded value. | |
| 1759 { Label zzz ; | |
| 1760 __ set (65536, G3_scratch) ; | |
| 1761 __ cmp (Otos_i, G3_scratch) ; | |
| 1762 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
| 1763 __ delayed()->nop(); | |
| 1764 __ stop("BCI is in the wrong register half?"); | |
| 1765 __ bind (zzz) ; | |
| 1766 } | |
| 1767 #endif | |
| 1768 #endif | |
| 1769 | |
| 1770 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1771 | |
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1772 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1773 __ add(G3_scratch, Otos_i, G3_scratch); |
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1774 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1775 __ dispatch_next(vtos); |
| 1776 } | |
| 1777 | |
| 1778 | |
| 1779 void TemplateTable::wide_ret() { | |
| 1780 transition(vtos, vtos); | |
| 1781 locals_index_wide(G3_scratch); | |
| 1782 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1783 // Otos_i contains the bci, compute the bcp from that | |
| 1784 | |
| 1785 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1786 | |
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1787 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1788 __ add(G3_scratch, Otos_i, G3_scratch); |
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1789 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1790 __ dispatch_next(vtos); |
| 1791 } | |
| 1792 | |
| 1793 | |
| 1794 void TemplateTable::tableswitch() { | |
| 1795 transition(itos, vtos); | |
| 1796 Label default_case, continue_execution; | |
| 1797 | |
| 1798 // align bcp | |
| 1799 __ add(Lbcp, BytesPerInt, O1); | |
| 1800 __ and3(O1, -BytesPerInt, O1); | |
| 1801 // load lo, hi | |
| 1802 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
| 1803 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
| 1804 #ifdef _LP64 | |
| 1805 // Sign extend the 32 bits | |
| 1806 __ sra ( Otos_i, 0, Otos_i ); | |
| 1807 #endif /* _LP64 */ | |
| 1808 | |
| 1809 // check against lo & hi | |
| 1810 __ cmp( Otos_i, O2); | |
| 1811 __ br( Assembler::less, false, Assembler::pn, default_case); | |
| 1812 __ delayed()->cmp( Otos_i, O3 ); | |
| 1813 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
| 1814 // lookup dispatch offset | |
| 1815 __ delayed()->sub(Otos_i, O2, O2); | |
| 1816 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
| 1817 __ sll(O2, LogBytesPerInt, O2); | |
| 1818 __ add(O2, 3 * BytesPerInt, O2); | |
| 3839 | 1819 __ ba(continue_execution); |
| 0 | 1820 __ delayed()->ld(O1, O2, O2); |
| 1821 // handle default | |
| 1822 __ bind(default_case); | |
| 1823 __ profile_switch_default(O3); | |
| 1824 __ ld(O1, 0, O2); // get default offset | |
| 1825 // continue execution | |
| 1826 __ bind(continue_execution); | |
| 1827 __ add(Lbcp, O2, Lbcp); | |
| 1828 __ dispatch_next(vtos); | |
| 1829 } | |
| 1830 | |
| 1831 | |
| 1832 void TemplateTable::lookupswitch() { | |
| 1833 transition(itos, itos); | |
| 1834 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1835 } | |
| 1836 | |
| 1837 void TemplateTable::fast_linearswitch() { | |
| 1838 transition(itos, vtos); | |
| 1839 Label loop_entry, loop, found, continue_execution; | |
| 1840 // align bcp | |
| 1841 __ add(Lbcp, BytesPerInt, O1); | |
| 1842 __ and3(O1, -BytesPerInt, O1); | |
| 1843 // set counter | |
| 1844 __ ld(O1, BytesPerInt, O2); | |
| 1845 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
| 1846 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
| 3839 | 1847 __ ba(loop_entry); |
| 0 | 1848 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
| 1849 | |
| 1850 // table search | |
| 1851 __ bind(loop); | |
| 1852 __ cmp(O4, Otos_i); | |
| 1853 __ br(Assembler::equal, true, Assembler::pn, found); | |
| 1854 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
| 1855 __ inc(O3, 2 * BytesPerInt); | |
| 1856 | |
| 1857 __ bind(loop_entry); | |
| 1858 __ cmp(O2, O3); | |
| 1859 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
| 1860 __ delayed()->ld(O3, 0, O4); | |
| 1861 | |
| 1862 // default case | |
| 1863 __ ld(O1, 0, O4); // get default offset | |
| 1864 if (ProfileInterpreter) { | |
| 1865 __ profile_switch_default(O3); | |
| 3839 | 1866 __ ba_short(continue_execution); |
| 0 | 1867 } |
| 1868 | |
| 1869 // entry found -> get offset | |
| 1870 __ bind(found); | |
| 1871 if (ProfileInterpreter) { | |
| 1872 __ sub(O3, O1, O3); | |
| 1873 __ sub(O3, 2*BytesPerInt, O3); | |
| 1874 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
| 1875 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
| 1876 | |
| 1877 __ bind(continue_execution); | |
| 1878 } | |
| 1879 __ add(Lbcp, O4, Lbcp); | |
| 1880 __ dispatch_next(vtos); | |
| 1881 } | |
| 1882 | |
| 1883 | |
| 1884 void TemplateTable::fast_binaryswitch() { | |
| 1885 transition(itos, vtos); | |
| 1886 // Implementation using the following core algorithm: (copied from Intel) | |
| 1887 // | |
| 1888 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1889 // // Binary search according to "Methodik des Programmierens" by | |
| 1890 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1891 // int i = 0; | |
| 1892 // int j = n; | |
| 1893 // while (i+1 < j) { | |
| 1894 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1895 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1896 // // where a stands for the array and assuming that the (inexisting) | |
| 1897 // // element a[n] is infinitely big. | |
| 1898 // int h = (i + j) >> 1; | |
| 1899 // // i < h < j | |
| 1900 // if (key < array[h].fast_match()) { | |
| 1901 // j = h; | |
| 1902 // } else { | |
| 1903 // i = h; | |
| 1904 // } | |
| 1905 // } | |
| 1906 // // R: a[i] <= key < a[i+1] or Q | |
| 1907 // // (i.e., if key is within array, i is the correct index) | |
| 1908 // return i; | |
| 1909 // } | |
| 1910 | |
| 1911 // register allocation | |
| 1912 assert(Otos_i == O0, "alias checking"); | |
| 1913 const Register Rkey = Otos_i; // already set (tosca) | |
| 1914 const Register Rarray = O1; | |
| 1915 const Register Ri = O2; | |
| 1916 const Register Rj = O3; | |
| 1917 const Register Rh = O4; | |
| 1918 const Register Rscratch = O5; | |
| 1919 | |
| 1920 const int log_entry_size = 3; | |
| 1921 const int entry_size = 1 << log_entry_size; | |
| 1922 | |
| 1923 Label found; | |
| 1924 // Find Array start | |
| 1925 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
| 1926 __ and3(Rarray, -BytesPerInt, Rarray); | |
| 1927 // initialize i & j (in delay slot) | |
| 1928 __ clr( Ri ); | |
| 1929 | |
| 1930 // and start | |
| 1931 Label entry; | |
| 3839 | 1932 __ ba(entry); |
| 0 | 1933 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
| 1934 // (Rj is already in the native byte-ordering.) | |
| 1935 | |
| 1936 // binary search loop | |
| 1937 { Label loop; | |
| 1938 __ bind( loop ); | |
| 1939 // int h = (i + j) >> 1; | |
| 1940 __ sra( Rh, 1, Rh ); | |
| 1941 // if (key < array[h].fast_match()) { | |
| 1942 // j = h; | |
| 1943 // } else { | |
| 1944 // i = h; | |
| 1945 // } | |
| 1946 __ sll( Rh, log_entry_size, Rscratch ); | |
| 1947 __ ld( Rarray, Rscratch, Rscratch ); | |
| 1948 // (Rscratch is already in the native byte-ordering.) | |
| 1949 __ cmp( Rkey, Rscratch ); | |
| 1950 if ( VM_Version::v9_instructions_work() ) { | |
| 1951 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
| 1952 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
| 1953 } | |
| 1954 else { | |
| 1955 Label end_of_if; | |
| 1956 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
| 1957 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
| 1958 __ mov( Rh, Ri ); // else i = h | |
| 1959 __ bind(end_of_if); // } | |
| 1960 } | |
| 1961 | |
| 1962 // while (i+1 < j) | |
| 1963 __ bind( entry ); | |
| 1964 __ add( Ri, 1, Rscratch ); | |
| 1965 __ cmp(Rscratch, Rj); | |
| 1966 __ br( Assembler::less, true, Assembler::pt, loop ); | |
| 1967 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
| 1968 } | |
| 1969 | |
| 1970 // end of binary search, result index is i (must check again!) | |
| 1971 Label default_case; | |
| 1972 Label continue_execution; | |
| 1973 if (ProfileInterpreter) { | |
| 1974 __ mov( Ri, Rh ); // Save index in i for profiling | |
| 1975 } | |
| 1976 __ sll( Ri, log_entry_size, Ri ); | |
| 1977 __ ld( Rarray, Ri, Rscratch ); | |
| 1978 // (Rscratch is already in the native byte-ordering.) | |
| 1979 __ cmp( Rkey, Rscratch ); | |
| 1980 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
| 1981 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
| 1982 | |
| 1983 // entry found -> j = offset | |
| 1984 __ inc( Ri, BytesPerInt ); | |
| 1985 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
| 1986 __ ld( Rarray, Ri, Rj ); | |
| 1987 // (Rj is already in the native byte-ordering.) | |
| 1988 | |
| 1989 if (ProfileInterpreter) { | |
| 3839 | 1990 __ ba_short(continue_execution); |
| 0 | 1991 } |
| 1992 | |
| 1993 __ bind(default_case); // fall through (if not profiling) | |
| 1994 __ profile_switch_default(Ri); | |
| 1995 | |
| 1996 __ bind(continue_execution); | |
| 1997 __ add( Lbcp, Rj, Lbcp ); | |
| 1998 __ dispatch_next( vtos ); | |
| 1999 } | |
| 2000 | |
| 2001 | |
| 2002 void TemplateTable::_return(TosState state) { | |
| 2003 transition(state, state); | |
| 2004 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
| 2005 | |
| 2006 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2007 assert(state == vtos, "only valid state"); | |
| 2008 __ mov(G0, G3_scratch); | |
| 2009 __ access_local_ptr(G3_scratch, Otos_i); | |
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2010 __ load_klass(Otos_i, O2); |
| 0 | 2011 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2012 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
| 0 | 2013 __ andcc(G3, O2, G0); |
| 2014 Label skip_register_finalizer; | |
| 2015 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
| 2016 __ delayed()->nop(); | |
| 2017 | |
| 2018 // Call out to do finalizer registration | |
| 2019 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
| 2020 | |
| 2021 __ bind(skip_register_finalizer); | |
| 2022 } | |
| 2023 | |
| 2024 __ remove_activation(state, /* throw_monitor_exception */ true); | |
| 2025 | |
| 2026 // The caller's SP was adjusted upon method entry to accomodate | |
| 2027 // the callee's non-argument locals. Undo that adjustment. | |
| 2028 __ ret(); // return to caller | |
| 2029 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 2030 } | |
| 2031 | |
| 2032 | |
| 2033 // ---------------------------------------------------------------------------- | |
| 2034 // Volatile variables demand their effects be made known to all CPU's in | |
| 2035 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 2036 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 2037 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 2038 // reorder volatile references, the hardware also must not reorder them). | |
| 2039 // | |
| 2040 // According to the new Java Memory Model (JMM): | |
| 2041 // (1) All volatiles are serialized wrt to each other. | |
| 2042 // ALSO reads & writes act as aquire & release, so: | |
| 2043 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 2044 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 2045 // that happen before the volatile read to float down below it. | |
| 2046 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 2047 // that happen BEFORE the write float down to after the write. It's OK for | |
| 2048 // non-volatile memory refs that happen after the volatile write to float up | |
| 2049 // before it. | |
| 2050 // | |
| 2051 // We only put in barriers around volatile refs (they are expensive), not | |
| 2052 // _between_ memory refs (that would require us to track the flavor of the | |
| 2053 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 2054 // before volatile stores and after volatile loads. These nearly cover | |
| 2055 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 2056 // case is placed after volatile-stores although it could just as well go | |
| 2057 // before volatile-loads. | |
| 2058 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
| 2059 // Helper function to insert a is-volatile test and memory barrier | |
| 2060 // All current sparc implementations run in TSO, needing only StoreLoad | |
| 2061 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
| 2062 __ membar( order_constraint ); | |
| 2063 } | |
| 2064 | |
| 2065 // ---------------------------------------------------------------------------- | |
| 1565 | 2066 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2067 Register Rcache, | |
| 2068 Register index, | |
| 2069 size_t index_size) { | |
| 0 | 2070 // Depends on cpCacheOop layout! |
| 2071 Label resolved; | |
| 2072 | |
| 1565 | 2073 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2074 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2075 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2076 __ br(Assembler::equal, false, Assembler::pt, resolved); |
| 1503 | 2077 __ delayed()->set((int)bytecode(), O1); |
| 0 | 2078 |
| 2079 address entry; | |
| 2080 switch (bytecode()) { | |
| 2081 case Bytecodes::_getstatic : // fall through | |
| 2082 case Bytecodes::_putstatic : // fall through | |
| 2083 case Bytecodes::_getfield : // fall through | |
| 2084 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
| 2085 case Bytecodes::_invokevirtual : // fall through | |
| 2086 case Bytecodes::_invokespecial : // fall through | |
| 2087 case Bytecodes::_invokestatic : // fall through | |
| 2088 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2089 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
| 1503 | 2090 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2091 default: |
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2092 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2093 break; |
| 0 | 2094 } |
| 2095 // first time invocation - must resolve first | |
| 2096 __ call_VM(noreg, entry, O1); | |
| 2097 // Update registers with resolved info | |
| 1565 | 2098 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2099 __ bind(resolved); |
| 2100 } | |
| 2101 | |
| 2102 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2103 Register method, |
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2104 Register itable_index, |
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2105 Register flags, |
| 0 | 2106 bool is_invokevirtual, |
| 1565 | 2107 bool is_invokevfinal, |
| 2108 bool is_invokedynamic) { | |
| 0 | 2109 // Uses both G3_scratch and G4_scratch |
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2110 Register cache = G3_scratch; |
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2111 Register index = G4_scratch; |
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2112 assert_different_registers(cache, method, itable_index); |
| 0 | 2113 |
| 2114 // determine constant pool cache field offsets | |
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2115 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2116 const int method_offset = in_bytes( |
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2117 ConstantPoolCache::base_offset() + |
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2118 ((byte_no == f2_byte) |
| 0 | 2119 ? ConstantPoolCacheEntry::f2_offset() |
| 2120 : ConstantPoolCacheEntry::f1_offset() | |
| 2121 ) | |
| 2122 ); | |
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2123 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2124 ConstantPoolCacheEntry::flags_offset()); |
| 2125 // access constant pool cache fields | |
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2126 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2127 ConstantPoolCacheEntry::f2_offset()); |
| 2128 | |
| 2129 if (is_invokevfinal) { | |
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2130 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2131 __ ld_ptr(Address(cache, method_offset), method); |
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2132 } else { |
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2133 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2134 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2135 __ ld_ptr(Address(cache, method_offset), method); |
| 0 | 2136 } |
| 2137 | |
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2138 if (itable_index != noreg) { |
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2139 // pick up itable or appendix index from f2 also: |
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2140 __ ld_ptr(Address(cache, index_offset), itable_index); |
| 0 | 2141 } |
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2142 __ ld_ptr(Address(cache, flags_offset), flags); |
| 0 | 2143 } |
| 2144 | |
| 2145 // The Rcache register must be set before call | |
| 2146 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
| 2147 Register Rcache, | |
| 2148 Register index, | |
| 2149 Register Roffset, | |
| 2150 Register Rflags, | |
| 2151 bool is_static) { | |
| 2152 assert_different_registers(Rcache, Rflags, Roffset); | |
| 2153 | |
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2154 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2155 |
| 727 | 2156 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 2157 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
| 0 | 2158 if (is_static) { |
| 727 | 2159 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2160 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2161 __ ld_ptr( Robj, mirror_offset, Robj); |
| 0 | 2162 } |
| 2163 } | |
| 2164 | |
| 2165 // The registers Rcache and index expected to be set before call. | |
| 2166 // Correct values of the Rcache and index registers are preserved. | |
| 2167 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
| 2168 Register index, | |
| 2169 bool is_static, | |
| 2170 bool has_tos) { | |
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2171 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2172 |
| 2173 if (JvmtiExport::can_post_field_access()) { | |
| 2174 // Check to see if a field access watch has been set before we take | |
| 2175 // the time to call into the VM. | |
| 2176 Label Label1; | |
| 2177 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2178 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
| 0 | 2179 __ load_contents(get_field_access_count_addr, G1_scratch); |
| 3839 | 2180 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
| 0 | 2181 |
| 2182 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
| 2183 | |
| 2184 if (is_static) { | |
| 2185 __ clr(Otos_i); | |
| 2186 } else { | |
| 2187 if (has_tos) { | |
| 2188 // save object pointer before call_VM() clobbers it | |
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2189 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
| 0 | 2190 } else { |
| 2191 // Load top of stack (do not pop the value off the stack); | |
| 2192 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 2193 } | |
| 2194 __ verify_oop(Otos_i); | |
| 2195 } | |
| 2196 // Otos_i: object pointer or NULL if static | |
| 2197 // Rcache: cache entry pointer | |
| 2198 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2199 Otos_i, Rcache); | |
| 2200 if (!is_static && has_tos) { | |
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2201 __ pop_ptr(Otos_i); // restore object pointer |
| 0 | 2202 __ verify_oop(Otos_i); |
| 2203 } | |
| 2204 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2205 __ bind(Label1); | |
| 2206 } | |
| 2207 } | |
| 2208 | |
| 2209 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2210 transition(vtos, vtos); | |
| 2211 | |
| 2212 Register Rcache = G3_scratch; | |
| 2213 Register index = G4_scratch; | |
| 2214 Register Rclass = Rcache; | |
| 2215 Register Roffset= G4_scratch; | |
| 2216 Register Rflags = G1_scratch; | |
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2217 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2218 |
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2219 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2220 jvmti_post_field_access(Rcache, index, is_static, false); |
| 2221 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2222 | |
| 2223 if (!is_static) { | |
| 2224 pop_and_check_object(Rclass); | |
| 2225 } else { | |
| 2226 __ verify_oop(Rclass); | |
| 2227 } | |
| 2228 | |
| 2229 Label exit; | |
| 2230 | |
| 2231 Assembler::Membar_mask_bits membar_bits = | |
| 2232 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2233 | |
| 2234 if (__ membar_has_effect(membar_bits)) { | |
| 2235 // Get volatile flag | |
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2236 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2237 __ and3(Rflags, Lscratch, Lscratch); |
| 2238 } | |
| 2239 | |
| 2240 Label checkVolatile; | |
| 2241 | |
| 2242 // compute field type | |
| 2243 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2244 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2245 // Make sure we don't need to mask Rflags after the above shift |
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2246 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2247 |
| 2248 // Check atos before itos for getstatic, more likely (in Queens at least) | |
| 2249 __ cmp(Rflags, atos); | |
| 2250 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2251 __ delayed() ->cmp(Rflags, itos); | |
| 2252 | |
| 2253 // atos | |
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2254 __ load_heap_oop(Rclass, Roffset, Otos_i); |
| 0 | 2255 __ verify_oop(Otos_i); |
| 2256 __ push(atos); | |
| 2257 if (!is_static) { | |
| 2258 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
| 2259 } | |
| 3839 | 2260 __ ba(checkVolatile); |
| 0 | 2261 __ delayed()->tst(Lscratch); |
| 2262 | |
| 2263 __ bind(notObj); | |
| 2264 | |
| 2265 // cmp(Rflags, itos); | |
| 2266 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2267 __ delayed() ->cmp(Rflags, ltos); | |
| 2268 | |
| 2269 // itos | |
| 2270 __ ld(Rclass, Roffset, Otos_i); | |
| 2271 __ push(itos); | |
| 2272 if (!is_static) { | |
| 2273 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
| 2274 } | |
| 3839 | 2275 __ ba(checkVolatile); |
| 0 | 2276 __ delayed()->tst(Lscratch); |
| 2277 | |
| 2278 __ bind(notInt); | |
| 2279 | |
| 2280 // cmp(Rflags, ltos); | |
| 2281 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
| 2282 __ delayed() ->cmp(Rflags, btos); | |
| 2283 | |
| 2284 // ltos | |
| 2285 // load must be atomic | |
| 2286 __ ld_long(Rclass, Roffset, Otos_l); | |
| 2287 __ push(ltos); | |
| 2288 if (!is_static) { | |
| 2289 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
| 2290 } | |
| 3839 | 2291 __ ba(checkVolatile); |
| 0 | 2292 __ delayed()->tst(Lscratch); |
| 2293 | |
| 2294 __ bind(notLong); | |
| 2295 | |
| 2296 // cmp(Rflags, btos); | |
| 2297 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
| 2298 __ delayed() ->cmp(Rflags, ctos); | |
| 2299 | |
| 2300 // btos | |
| 2301 __ ldsb(Rclass, Roffset, Otos_i); | |
| 2302 __ push(itos); | |
| 2303 if (!is_static) { | |
| 2304 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
| 2305 } | |
| 3839 | 2306 __ ba(checkVolatile); |
| 0 | 2307 __ delayed()->tst(Lscratch); |
| 2308 | |
| 2309 __ bind(notByte); | |
| 2310 | |
| 2311 // cmp(Rflags, ctos); | |
| 2312 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
| 2313 __ delayed() ->cmp(Rflags, stos); | |
| 2314 | |
| 2315 // ctos | |
| 2316 __ lduh(Rclass, Roffset, Otos_i); | |
| 2317 __ push(itos); | |
| 2318 if (!is_static) { | |
| 2319 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
| 2320 } | |
| 3839 | 2321 __ ba(checkVolatile); |
| 0 | 2322 __ delayed()->tst(Lscratch); |
| 2323 | |
| 2324 __ bind(notChar); | |
| 2325 | |
| 2326 // cmp(Rflags, stos); | |
| 2327 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
| 2328 __ delayed() ->cmp(Rflags, ftos); | |
| 2329 | |
| 2330 // stos | |
| 2331 __ ldsh(Rclass, Roffset, Otos_i); | |
| 2332 __ push(itos); | |
| 2333 if (!is_static) { | |
| 2334 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
| 2335 } | |
| 3839 | 2336 __ ba(checkVolatile); |
| 0 | 2337 __ delayed()->tst(Lscratch); |
| 2338 | |
| 2339 __ bind(notShort); | |
| 2340 | |
| 2341 | |
| 2342 // cmp(Rflags, ftos); | |
| 2343 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
| 2344 __ delayed() ->tst(Lscratch); | |
| 2345 | |
| 2346 // ftos | |
| 2347 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
| 2348 __ push(ftos); | |
| 2349 if (!is_static) { | |
| 2350 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
| 2351 } | |
| 3839 | 2352 __ ba(checkVolatile); |
| 0 | 2353 __ delayed()->tst(Lscratch); |
| 2354 | |
| 2355 __ bind(notFloat); | |
| 2356 | |
| 2357 | |
| 2358 // dtos | |
| 2359 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
| 2360 __ push(dtos); | |
| 2361 if (!is_static) { | |
| 2362 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
| 2363 } | |
| 2364 | |
| 2365 __ bind(checkVolatile); | |
| 2366 if (__ membar_has_effect(membar_bits)) { | |
| 2367 // __ tst(Lscratch); executed in delay slot | |
| 2368 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2369 __ delayed()->nop(); | |
| 2370 volatile_barrier(membar_bits); | |
| 2371 } | |
| 2372 | |
| 2373 __ bind(exit); | |
| 2374 } | |
| 2375 | |
| 2376 | |
| 2377 void TemplateTable::getfield(int byte_no) { | |
| 2378 getfield_or_static(byte_no, false); | |
| 2379 } | |
| 2380 | |
| 2381 void TemplateTable::getstatic(int byte_no) { | |
| 2382 getfield_or_static(byte_no, true); | |
| 2383 } | |
| 2384 | |
| 2385 | |
| 2386 void TemplateTable::fast_accessfield(TosState state) { | |
| 2387 transition(atos, state); | |
| 2388 Register Rcache = G3_scratch; | |
| 2389 Register index = G4_scratch; | |
| 2390 Register Roffset = G4_scratch; | |
| 2391 Register Rflags = Rcache; | |
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2392 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2393 |
| 2394 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2395 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
| 2396 | |
| 727 | 2397 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2398 |
| 2399 __ null_check(Otos_i); | |
| 2400 __ verify_oop(Otos_i); | |
| 2401 | |
| 2402 Label exit; | |
| 2403 | |
| 2404 Assembler::Membar_mask_bits membar_bits = | |
| 2405 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2406 if (__ membar_has_effect(membar_bits)) { | |
| 2407 // Get volatile flag | |
| 727 | 2408 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2409 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2410 } |
| 2411 | |
| 2412 switch (bytecode()) { | |
| 2413 case Bytecodes::_fast_bgetfield: | |
| 2414 __ ldsb(Otos_i, Roffset, Otos_i); | |
| 2415 break; | |
| 2416 case Bytecodes::_fast_cgetfield: | |
| 2417 __ lduh(Otos_i, Roffset, Otos_i); | |
| 2418 break; | |
| 2419 case Bytecodes::_fast_sgetfield: | |
| 2420 __ ldsh(Otos_i, Roffset, Otos_i); | |
| 2421 break; | |
| 2422 case Bytecodes::_fast_igetfield: | |
| 2423 __ ld(Otos_i, Roffset, Otos_i); | |
| 2424 break; | |
| 2425 case Bytecodes::_fast_lgetfield: | |
| 2426 __ ld_long(Otos_i, Roffset, Otos_l); | |
| 2427 break; | |
| 2428 case Bytecodes::_fast_fgetfield: | |
| 2429 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
| 2430 break; | |
| 2431 case Bytecodes::_fast_dgetfield: | |
| 2432 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
| 2433 break; | |
| 2434 case Bytecodes::_fast_agetfield: | |
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2435 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
| 0 | 2436 break; |
| 2437 default: | |
| 2438 ShouldNotReachHere(); | |
| 2439 } | |
| 2440 | |
| 2441 if (__ membar_has_effect(membar_bits)) { | |
| 2442 __ btst(Lscratch, Rflags); | |
| 2443 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2444 __ delayed()->nop(); | |
| 2445 volatile_barrier(membar_bits); | |
| 2446 __ bind(exit); | |
| 2447 } | |
| 2448 | |
| 2449 if (state == atos) { | |
| 2450 __ verify_oop(Otos_i); // does not blow flags! | |
| 2451 } | |
| 2452 } | |
| 2453 | |
| 2454 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2455 if (JvmtiExport::can_post_field_modification()) { | |
| 2456 // Check to see if a field modification watch has been set before we take | |
| 2457 // the time to call into the VM. | |
| 2458 Label done; | |
| 727 | 2459 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2460 __ load_contents(get_field_modification_count_addr, G4_scratch); |
| 3839 | 2461 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
| 0 | 2462 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
| 2463 __ verify_oop(G4_scratch); | |
| 2464 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
| 2465 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
| 2466 // Save tos values before call_VM() clobbers them. Since we have | |
| 2467 // to do it for every data type, we use the saved values as the | |
| 2468 // jvalue object. | |
| 2469 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
| 2470 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
| 2471 case Bytecodes::_fast_bputfield: // fall through | |
| 2472 case Bytecodes::_fast_sputfield: // fall through | |
| 2473 case Bytecodes::_fast_cputfield: // fall through | |
| 2474 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
| 2475 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
| 2476 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
| 2477 // get words in right order for use as jvalue object | |
| 2478 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
| 2479 } | |
| 2480 // setup pointer to jvalue object | |
| 2481 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
| 2482 // G4_scratch: object pointer | |
| 2483 // G1_scratch: cache entry pointer | |
| 2484 // G3_scratch: jvalue object on the stack | |
| 2485 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
| 2486 switch (bytecode()) { // restore tos values | |
| 2487 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
| 2488 case Bytecodes::_fast_bputfield: // fall through | |
| 2489 case Bytecodes::_fast_sputfield: // fall through | |
| 2490 case Bytecodes::_fast_cputfield: // fall through | |
| 2491 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
| 2492 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
| 2493 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
| 2494 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
| 2495 } | |
| 2496 __ bind(done); | |
| 2497 } | |
| 2498 } | |
| 2499 | |
| 2500 // The registers Rcache and index expected to be set before call. | |
| 2501 // The function may destroy various registers, just not the Rcache and index registers. | |
| 2502 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2503 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2504 |
| 2505 if (JvmtiExport::can_post_field_modification()) { | |
| 2506 // Check to see if a field modification watch has been set before we take | |
| 2507 // the time to call into the VM. | |
| 2508 Label Label1; | |
| 2509 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2510 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2511 __ load_contents(get_field_modification_count_addr, G1_scratch); |
| 3839 | 2512 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
| 0 | 2513 |
| 2514 // The Rcache and index registers have been already set. | |
| 2515 // This allows to eliminate this call but the Rcache and index | |
| 2516 // registers must be correspondingly used after this line. | |
| 2517 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
| 2518 | |
| 2519 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
| 2520 if (is_static) { | |
| 2521 // Life is simple. Null out the object pointer. | |
| 2522 __ clr(G4_scratch); | |
| 2523 } else { | |
| 2524 Register Rflags = G1_scratch; | |
| 2525 // Life is harder. The stack holds the value on top, followed by the | |
| 2526 // object. We don't know the size of the value, though; it could be | |
| 2527 // one or two words depending on its type. As a result, we must find | |
| 2528 // the type to determine where the object is. | |
| 2529 | |
| 2530 Label two_word, valsizeknown; | |
| 727 | 2531 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2532 __ mov(Lesp, G4_scratch); |
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2533 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2534 // Make sure we don't need to mask Rflags after the above shift |
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2535 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2536 __ cmp(Rflags, ltos); |
| 2537 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2538 __ delayed()->cmp(Rflags, dtos); | |
| 2539 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2540 __ delayed()->nop(); | |
| 2541 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
| 3839 | 2542 __ ba_short(valsizeknown); |
| 0 | 2543 __ bind(two_word); |
| 2544 | |
| 2545 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
| 2546 | |
| 2547 __ bind(valsizeknown); | |
| 2548 // setup object pointer | |
| 2549 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
| 2550 __ verify_oop(G4_scratch); | |
| 2551 } | |
| 2552 // setup pointer to jvalue object | |
| 2553 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
| 2554 // G4_scratch: object pointer or NULL if static | |
| 2555 // G3_scratch: cache entry pointer | |
| 2556 // G1_scratch: jvalue object on the stack | |
| 2557 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2558 G4_scratch, G3_scratch, G1_scratch); | |
| 2559 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2560 __ bind(Label1); | |
| 2561 } | |
| 2562 } | |
| 2563 | |
| 2564 void TemplateTable::pop_and_check_object(Register r) { | |
| 2565 __ pop_ptr(r); | |
| 2566 __ null_check(r); // for field access must check obj. | |
| 2567 __ verify_oop(r); | |
| 2568 } | |
| 2569 | |
| 2570 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2571 transition(vtos, vtos); | |
| 2572 Register Rcache = G3_scratch; | |
| 2573 Register index = G4_scratch; | |
| 2574 Register Rclass = Rcache; | |
| 2575 Register Roffset= G4_scratch; | |
| 2576 Register Rflags = G1_scratch; | |
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2577 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2578 |
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2579 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2580 jvmti_post_field_mod(Rcache, index, is_static); |
| 2581 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2582 | |
| 2583 Assembler::Membar_mask_bits read_bits = | |
| 2584 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2585 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2586 | |
| 2587 Label notVolatile, checkVolatile, exit; | |
| 2588 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
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2589 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2590 __ and3(Rflags, Lscratch, Lscratch); |
| 2591 | |
| 2592 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2593 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2594 volatile_barrier(read_bits); |
| 2595 __ bind(notVolatile); | |
| 2596 } | |
| 2597 } | |
| 2598 | |
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2599 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2600 // Make sure we don't need to mask Rflags after the above shift |
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2601 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2602 |
| 2603 // compute field type | |
| 2604 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
| 2605 | |
| 2606 if (is_static) { | |
| 2607 // putstatic with object type most likely, check that first | |
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2608 __ cmp(Rflags, atos); |
| 0 | 2609 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2610 __ delayed()->cmp(Rflags, itos); |
| 0 | 2611 |
| 2612 // atos | |
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2613 { |
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2614 __ pop_ptr(); |
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2615 __ verify_oop(Otos_i); |
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2616 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2617 __ ba(checkVolatile); |
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2618 __ delayed()->tst(Lscratch); |
|
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2619 } |
| 0 | 2620 |
| 2621 __ bind(notObj); | |
|
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2622 // cmp(Rflags, itos); |
| 0 | 2623 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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2624 __ delayed()->cmp(Rflags, btos); |
| 0 | 2625 |
| 2626 // itos | |
|
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2627 { |
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2628 __ pop_i(); |
|
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2629 __ st(Otos_i, Rclass, Roffset); |
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2630 __ ba(checkVolatile); |
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2631 __ delayed()->tst(Lscratch); |
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2632 } |
| 0 | 2633 |
| 2634 __ bind(notInt); | |
| 2635 } else { | |
| 2636 // putfield with int type most likely, check that first | |
|
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2637 __ cmp(Rflags, itos); |
| 0 | 2638 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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2639 __ delayed()->cmp(Rflags, atos); |
| 0 | 2640 |
| 2641 // itos | |
|
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2642 { |
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2643 __ pop_i(); |
|
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2644 pop_and_check_object(Rclass); |
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2645 __ st(Otos_i, Rclass, Roffset); |
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2646 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2647 __ ba(checkVolatile); |
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2648 __ delayed()->tst(Lscratch); |
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2649 } |
| 0 | 2650 |
| 2651 __ bind(notInt); | |
|
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2652 // cmp(Rflags, atos); |
| 0 | 2653 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
|
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2654 __ delayed()->cmp(Rflags, btos); |
| 0 | 2655 |
| 2656 // atos | |
|
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2657 { |
|
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2658 __ pop_ptr(); |
|
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|
2659 pop_and_check_object(Rclass); |
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2660 __ verify_oop(Otos_i); |
|
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2661 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
|
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2662 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2663 __ ba(checkVolatile); |
|
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2664 __ delayed()->tst(Lscratch); |
|
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|
2665 } |
| 0 | 2666 |
| 2667 __ bind(notObj); | |
| 2668 } | |
| 2669 | |
|
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2670 // cmp(Rflags, btos); |
| 0 | 2671 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
|
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2672 __ delayed()->cmp(Rflags, ltos); |
| 0 | 2673 |
| 2674 // btos | |
|
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|
2675 { |
|
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2676 __ pop_i(); |
|
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|
2677 if (!is_static) pop_and_check_object(Rclass); |
|
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2678 __ stb(Otos_i, Rclass, Roffset); |
|
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2679 if (!is_static) { |
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2680 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2681 } |
|
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|
2682 __ ba(checkVolatile); |
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2683 __ delayed()->tst(Lscratch); |
| 0 | 2684 } |
| 2685 | |
| 2686 __ bind(notByte); | |
|
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2687 // cmp(Rflags, ltos); |
| 0 | 2688 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
|
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2689 __ delayed()->cmp(Rflags, ctos); |
| 0 | 2690 |
| 2691 // ltos | |
|
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2692 { |
|
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2693 __ pop_l(); |
|
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|
2694 if (!is_static) pop_and_check_object(Rclass); |
|
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2695 __ st_long(Otos_l, Rclass, Roffset); |
|
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2696 if (!is_static) { |
|
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2697 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2698 } |
|
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|
2699 __ ba(checkVolatile); |
|
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2700 __ delayed()->tst(Lscratch); |
| 0 | 2701 } |
| 2702 | |
| 2703 __ bind(notLong); | |
|
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2704 // cmp(Rflags, ctos); |
| 0 | 2705 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
|
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2706 __ delayed()->cmp(Rflags, stos); |
| 0 | 2707 |
| 2708 // ctos (char) | |
|
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2709 { |
|
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2710 __ pop_i(); |
|
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|
2711 if (!is_static) pop_and_check_object(Rclass); |
|
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2712 __ sth(Otos_i, Rclass, Roffset); |
|
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2713 if (!is_static) { |
|
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2714 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2715 } |
|
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2716 __ ba(checkVolatile); |
|
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2717 __ delayed()->tst(Lscratch); |
| 0 | 2718 } |
| 2719 | |
| 2720 __ bind(notChar); | |
|
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2721 // cmp(Rflags, stos); |
| 0 | 2722 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
|
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2723 __ delayed()->cmp(Rflags, ftos); |
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2724 |
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2725 // stos (short) |
|
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2726 { |
|
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2727 __ pop_i(); |
|
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2728 if (!is_static) pop_and_check_object(Rclass); |
|
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2729 __ sth(Otos_i, Rclass, Roffset); |
|
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2730 if (!is_static) { |
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2731 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2732 } |
|
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|
2733 __ ba(checkVolatile); |
|
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|
2734 __ delayed()->tst(Lscratch); |
| 0 | 2735 } |
| 2736 | |
| 2737 __ bind(notShort); | |
|
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2738 // cmp(Rflags, ftos); |
| 0 | 2739 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
| 2740 __ delayed()->nop(); | |
| 2741 | |
| 2742 // ftos | |
|
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2743 { |
|
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|
2744 __ pop_f(); |
|
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|
2745 if (!is_static) pop_and_check_object(Rclass); |
|
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2746 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
|
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|
2747 if (!is_static) { |
|
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2748 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2749 } |
|
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|
2750 __ ba(checkVolatile); |
|
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|
2751 __ delayed()->tst(Lscratch); |
| 0 | 2752 } |
| 2753 | |
| 2754 __ bind(notFloat); | |
| 2755 | |
| 2756 // dtos | |
|
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2757 { |
|
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2758 __ pop_d(); |
|
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|
2759 if (!is_static) pop_and_check_object(Rclass); |
|
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2760 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
|
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2761 if (!is_static) { |
|
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2762 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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2763 } |
| 0 | 2764 } |
| 2765 | |
| 2766 __ bind(checkVolatile); | |
| 2767 __ tst(Lscratch); | |
| 2768 | |
| 2769 if (__ membar_has_effect(write_bits)) { | |
| 2770 // __ tst(Lscratch); in delay slot | |
| 2771 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2772 __ delayed()->nop(); | |
| 2773 volatile_barrier(Assembler::StoreLoad); | |
| 2774 __ bind(exit); | |
| 2775 } | |
| 2776 } | |
| 2777 | |
| 2778 void TemplateTable::fast_storefield(TosState state) { | |
| 2779 transition(state, vtos); | |
| 2780 Register Rcache = G3_scratch; | |
| 2781 Register Rclass = Rcache; | |
| 2782 Register Roffset= G4_scratch; | |
| 2783 Register Rflags = G1_scratch; | |
|
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2784 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2785 |
| 2786 jvmti_post_fast_field_mod(); | |
| 2787 | |
| 2788 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
| 2789 | |
| 2790 Assembler::Membar_mask_bits read_bits = | |
| 2791 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2792 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2793 | |
| 2794 Label notVolatile, checkVolatile, exit; | |
| 2795 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 727 | 2796 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
|
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2797 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2798 __ and3(Rflags, Lscratch, Lscratch); |
| 2799 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2800 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2801 volatile_barrier(read_bits); |
| 2802 __ bind(notVolatile); | |
| 2803 } | |
| 2804 } | |
| 2805 | |
| 727 | 2806 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2807 pop_and_check_object(Rclass); |
| 2808 | |
| 2809 switch (bytecode()) { | |
| 2810 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
| 2811 case Bytecodes::_fast_cputfield: /* fall through */ | |
| 2812 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
| 2813 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
| 2814 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
| 2815 case Bytecodes::_fast_fputfield: | |
| 2816 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
| 2817 break; | |
| 2818 case Bytecodes::_fast_dputfield: | |
| 2819 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
| 2820 break; | |
| 2821 case Bytecodes::_fast_aputfield: | |
|
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2822 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
| 0 | 2823 break; |
| 2824 default: | |
| 2825 ShouldNotReachHere(); | |
| 2826 } | |
| 2827 | |
| 2828 if (__ membar_has_effect(write_bits)) { | |
| 3839 | 2829 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
| 0 | 2830 volatile_barrier(Assembler::StoreLoad); |
| 2831 __ bind(exit); | |
| 2832 } | |
| 2833 } | |
| 2834 | |
| 2835 | |
| 2836 void TemplateTable::putfield(int byte_no) { | |
| 2837 putfield_or_static(byte_no, false); | |
| 2838 } | |
| 2839 | |
| 2840 void TemplateTable::putstatic(int byte_no) { | |
| 2841 putfield_or_static(byte_no, true); | |
| 2842 } | |
| 2843 | |
| 2844 | |
| 2845 void TemplateTable::fast_xaccess(TosState state) { | |
| 2846 transition(vtos, state); | |
| 2847 Register Rcache = G3_scratch; | |
| 2848 Register Roffset = G4_scratch; | |
| 2849 Register Rflags = G4_scratch; | |
| 2850 Register Rreceiver = Lscratch; | |
| 2851 | |
| 1506 | 2852 __ ld_ptr(Llocals, 0, Rreceiver); |
| 0 | 2853 |
| 2854 // access constant pool cache (is resolved) | |
| 2855 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
|
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2856 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2857 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
| 2858 | |
| 2859 __ verify_oop(Rreceiver); | |
| 2860 __ null_check(Rreceiver); | |
| 2861 if (state == atos) { | |
|
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2862 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
| 0 | 2863 } else if (state == itos) { |
| 2864 __ ld (Rreceiver, Roffset, Otos_i) ; | |
| 2865 } else if (state == ftos) { | |
| 2866 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
| 2867 } else { | |
| 2868 ShouldNotReachHere(); | |
| 2869 } | |
| 2870 | |
| 2871 Assembler::Membar_mask_bits membar_bits = | |
| 2872 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2873 if (__ membar_has_effect(membar_bits)) { | |
| 2874 | |
| 2875 // Get is_volatile value in Rflags and check if membar is needed | |
|
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2876 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2877 |
| 2878 // Test volatile | |
| 2879 Label notVolatile; | |
|
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2880 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2881 __ btst(Rflags, Lscratch); |
| 2882 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2883 __ delayed()->nop(); | |
| 2884 volatile_barrier(membar_bits); | |
| 2885 __ bind(notVolatile); | |
| 2886 } | |
| 2887 | |
| 2888 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
| 2889 __ sub(Lbcp, 1, Lbcp); | |
| 2890 } | |
| 2891 | |
| 2892 //---------------------------------------------------------------------------------------------------- | |
| 2893 // Calls | |
| 2894 | |
| 2895 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2896 // implemented elsewhere | |
| 2897 ShouldNotReachHere(); | |
| 2898 } | |
| 2899 | |
|
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2900 void TemplateTable::prepare_invoke(int byte_no, |
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2901 Register method, // linked method (or i-klass) |
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2902 Register ra, // return address |
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2903 Register index, // itable index, MethodType, etc. |
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2904 Register recv, // if caller wants to see it |
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2905 Register flags // if caller wants to test it |
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2906 ) { |
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2907 // determine flags |
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2908 const Bytecodes::Code code = bytecode(); |
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2909 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2910 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2911 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2912 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2913 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2914 const bool load_receiver = (recv != noreg); |
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2915 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2916 assert(recv == noreg || recv == O0, ""); |
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2917 assert(flags == noreg || flags == O1, ""); |
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2918 |
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2919 // setup registers & access constant pool cache |
|
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2920 if (recv == noreg) recv = O0; |
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2921 if (flags == noreg) flags = O1; |
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2922 const Register temp = O2; |
|
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2923 assert_different_registers(method, ra, index, recv, flags, temp); |
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2924 |
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2925 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
|
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2926 |
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2927 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
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2928 |
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2929 // maybe push appendix to arguments |
|
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2930 if (is_invokedynamic || is_invokehandle) { |
|
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2931 Label L_no_push; |
|
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2932 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
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2933 __ btst(flags, temp); |
|
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2934 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
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2935 __ delayed()->nop(); |
|
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2936 // Push the appendix as a trailing parameter. |
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2937 // This must be done before we get the receiver, |
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2938 // since the parameter_size includes it. |
|
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2939 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2940 __ load_resolved_reference_at_index(temp, index); |
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2941 __ verify_oop(temp); |
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2942 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
|
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2943 __ bind(L_no_push); |
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2944 } |
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2945 |
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2946 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2947 if (load_receiver) { |
|
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2948 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
|
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2949 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
|
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2950 __ verify_oop(recv); |
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2951 } |
|
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2952 |
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2953 // compute return type |
|
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2954 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
|
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2955 // Make sure we don't need to mask flags after the above shift |
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2956 ConstantPoolCacheEntry::verify_tos_state_shift(); |
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2957 // load return address |
|
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2958 { |
|
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2959 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
|
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2960 (address)Interpreter::return_5_addrs_by_index_table() : |
|
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2961 (address)Interpreter::return_3_addrs_by_index_table(); |
|
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2962 AddressLiteral table(table_addr); |
|
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2963 __ set(table, temp); |
|
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2964 __ sll(ra, LogBytesPerWord, ra); |
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2965 __ ld_ptr(Address(temp, ra), ra); |
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|
2966 } |
|
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|
2967 } |
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|
2968 |
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|
2969 |
| 0 | 2970 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
| 2971 Register Rtemp = G4_scratch; | |
| 2972 Register Rcall = Rindex; | |
| 2973 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 2974 | |
|
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2975 // get target Method* & entry point |
|
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2976 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
| 0 | 2977 __ call_from_interpreter(Rcall, Gargs, Rret); |
| 2978 } | |
| 2979 | |
| 2980 void TemplateTable::invokevirtual(int byte_no) { | |
| 2981 transition(vtos, vtos); | |
| 1565 | 2982 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 2983 |
| 2984 Register Rscratch = G3_scratch; | |
|
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2985 Register Rtemp = G4_scratch; |
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2986 Register Rret = Lscratch; |
|
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2987 Register O0_recv = O0; |
| 0 | 2988 Label notFinal; |
| 2989 | |
| 1565 | 2990 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
| 0 | 2991 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2992 | |
| 2993 // Check for vfinal | |
|
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2994 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
| 0 | 2995 __ btst(Rret, G4_scratch); |
| 2996 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 2997 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
| 2998 | |
| 2999 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
| 3000 | |
| 3001 invokevfinal_helper(Rscratch, Rret); | |
| 3002 | |
| 3003 __ bind(notFinal); | |
| 3004 | |
| 3005 __ mov(G5_method, Rscratch); // better scratch register | |
|
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3006 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
|
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3007 // receiver is in O0_recv |
|
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3008 __ verify_oop(O0_recv); |
| 0 | 3009 |
| 3010 // get return address | |
| 727 | 3011 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3012 __ set(table, Rtemp); | |
|
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3013 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
|
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3014 // Make sure we don't need to mask Rret after the above shift |
|
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|
3015 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3016 __ sll(Rret, LogBytesPerWord, Rret); |
| 3017 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3018 | |
| 3019 // get receiver klass | |
|
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3020 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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|
3021 __ load_klass(O0_recv, O0_recv); |
|
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|
3022 __ verify_klass_ptr(O0_recv); |
|
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|
3023 |
|
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|
3024 __ profile_virtual_call(O0_recv, O4); |
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|
3025 |
|
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|
3026 generate_vtable_call(O0_recv, Rscratch, Rret); |
| 0 | 3027 } |
| 3028 | |
| 3029 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3030 transition(vtos, vtos); | |
| 1565 | 3031 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3032 |
| 3033 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
| 1565 | 3034 /*is_invokevfinal*/true, false); |
| 0 | 3035 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3036 invokevfinal_helper(G3_scratch, Lscratch); | |
| 3037 } | |
| 3038 | |
| 3039 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
| 3040 Register Rtemp = G4_scratch; | |
| 3041 | |
| 3042 // Load receiver from stack slot | |
|
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|
3043 __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G4_scratch); |
|
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|
3044 __ lduh(G4_scratch, in_bytes(ConstMethod::size_of_parameters_offset()), G4_scratch); |
| 0 | 3045 __ load_receiver(G4_scratch, O0); |
| 3046 | |
| 3047 // receiver NULL check | |
| 3048 __ null_check(O0); | |
| 3049 | |
| 3050 __ profile_final_call(O4); | |
| 3051 | |
| 3052 // get return address | |
| 727 | 3053 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3054 __ set(table, Rtemp); | |
|
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|
3055 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
|
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|
3056 // Make sure we don't need to mask Rret after the above shift |
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|
3057 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3058 __ sll(Rret, LogBytesPerWord, Rret); |
| 3059 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3060 | |
| 3061 | |
| 3062 // do the call | |
| 3063 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3064 } | |
| 3065 | |
|
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|
3066 |
| 0 | 3067 void TemplateTable::invokespecial(int byte_no) { |
| 3068 transition(vtos, vtos); | |
| 1565 | 3069 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3070 |
|
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|
3071 const Register Rret = Lscratch; |
|
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|
3072 const Register O0_recv = O0; |
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|
3073 const Register Rscratch = G3_scratch; |
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|
3074 |
|
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|
3075 prepare_invoke(byte_no, G5_method, Rret, noreg, O0_recv); // get receiver also for null check |
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|
3076 __ null_check(O0_recv); |
| 0 | 3077 |
| 3078 // do the call | |
|
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|
3079 __ profile_call(O4); |
| 0 | 3080 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3081 } | |
| 3082 | |
|
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|
3083 |
| 0 | 3084 void TemplateTable::invokestatic(int byte_no) { |
| 3085 transition(vtos, vtos); | |
| 1565 | 3086 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3087 |
|
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|
3088 const Register Rret = Lscratch; |
|
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3089 const Register Rscratch = G3_scratch; |
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|
3090 |
|
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|
3091 prepare_invoke(byte_no, G5_method, Rret); // get f1 Method* |
| 0 | 3092 |
| 3093 // do the call | |
|
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|
3094 __ profile_call(O4); |
| 0 | 3095 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3096 } | |
| 3097 | |
|
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|
3098 void TemplateTable::invokeinterface_object_method(Register RKlass, |
| 0 | 3099 Register Rcall, |
| 3100 Register Rret, | |
| 3101 Register Rflags) { | |
| 3102 Register Rscratch = G4_scratch; | |
| 3103 Register Rindex = Lscratch; | |
| 3104 | |
| 3105 assert_different_registers(Rscratch, Rindex, Rret); | |
| 3106 | |
| 3107 Label notFinal; | |
| 3108 | |
| 3109 // Check for vfinal | |
|
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3110 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), Rscratch); |
| 0 | 3111 __ btst(Rflags, Rscratch); |
| 3112 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 3113 __ delayed()->nop(); | |
| 3114 | |
| 3115 __ profile_final_call(O4); | |
| 3116 | |
|
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3117 // do the call - the index (f2) contains the Method* |
| 0 | 3118 assert_different_registers(G5_method, Gargs, Rcall); |
| 3119 __ mov(Rindex, G5_method); | |
| 3120 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3121 __ bind(notFinal); | |
| 3122 | |
|
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3123 __ profile_virtual_call(RKlass, O4); |
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3124 generate_vtable_call(RKlass, Rindex, Rret); |
| 0 | 3125 } |
| 3126 | |
| 3127 | |
| 3128 void TemplateTable::invokeinterface(int byte_no) { | |
| 3129 transition(vtos, vtos); | |
| 1565 | 3130 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3131 |
|
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|
3132 const Register Rinterface = G1_scratch; |
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3133 const Register Rret = G3_scratch; |
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3134 const Register Rindex = Lscratch; |
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3135 const Register O0_recv = O0; |
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3136 const Register O1_flags = O1; |
|
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3137 const Register O2_Klass = O2; |
|
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|
3138 const Register Rscratch = G4_scratch; |
| 0 | 3139 assert_different_registers(Rscratch, G5_method); |
| 3140 | |
|
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|
3141 prepare_invoke(byte_no, Rinterface, Rret, Rindex, O0_recv, O1_flags); |
| 0 | 3142 |
| 3143 // get receiver klass | |
|
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|
3144 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
|
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|
3145 __ load_klass(O0_recv, O2_Klass); |
| 0 | 3146 |
| 3147 // Special case of invokeinterface called for virtual method of | |
| 3148 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3149 // This code isn't produced by javac, but could be produced by | |
| 3150 // another compliant java compiler. | |
| 3151 Label notMethod; | |
|
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|
3152 __ set((1 << ConstantPoolCacheEntry::is_forced_virtual_shift), Rscratch); |
|
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|
3153 __ btst(O1_flags, Rscratch); |
| 0 | 3154 __ br(Assembler::zero, false, Assembler::pt, notMethod); |
| 3155 __ delayed()->nop(); | |
| 3156 | |
|
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|
3157 invokeinterface_object_method(O2_Klass, Rinterface, Rret, O1_flags); |
| 0 | 3158 |
| 3159 __ bind(notMethod); | |
| 3160 | |
|
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|
3161 __ profile_virtual_call(O2_Klass, O4); |
| 0 | 3162 |
| 3163 // | |
| 3164 // find entry point to call | |
| 3165 // | |
| 3166 | |
| 3167 // compute start of first itableOffsetEntry (which is at end of vtable) | |
|
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3168 const int base = InstanceKlass::vtable_start_offset() * wordSize; |
| 0 | 3169 Label search; |
|
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|
3170 Register Rtemp = O1_flags; |
|
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|
3171 |
|
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|
3172 __ ld(O2_Klass, InstanceKlass::vtable_length_offset() * wordSize, Rtemp); |
| 0 | 3173 if (align_object_offset(1) > 1) { |
| 3174 __ round_to(Rtemp, align_object_offset(1)); | |
| 3175 } | |
| 3176 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
| 3177 if (Assembler::is_simm13(base)) { | |
| 3178 __ add(Rtemp, base, Rtemp); | |
| 3179 } else { | |
| 3180 __ set(base, Rscratch); | |
| 3181 __ add(Rscratch, Rtemp, Rtemp); | |
| 3182 } | |
|
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|
3183 __ add(O2_Klass, Rtemp, Rscratch); |
| 0 | 3184 |
| 3185 __ bind(search); | |
| 3186 | |
| 3187 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
| 3188 { | |
| 3189 Label ok; | |
| 3190 | |
| 3191 // Check that entry is non-null. Null entries are probably a bytecode | |
| 605 | 3192 // problem. If the interface isn't implemented by the receiver class, |
| 0 | 3193 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
| 3194 // this too but that's only if the entry isn't already resolved, so we | |
| 3195 // need to check again. | |
| 3839 | 3196 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
| 0 | 3197 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
| 3198 __ should_not_reach_here(); | |
| 3199 __ bind(ok); | |
| 3200 } | |
| 3201 | |
| 3202 __ cmp(Rinterface, Rtemp); | |
| 3203 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
| 3204 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
| 3205 | |
| 3206 // entry found and Rscratch points to it | |
| 3207 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
| 3208 | |
| 3209 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
| 3210 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
| 3211 __ add(Rscratch, Rindex, Rscratch); | |
|
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|
3212 __ ld_ptr(O2_Klass, Rscratch, G5_method); |
| 0 | 3213 |
| 3214 // Check for abstract method error. | |
| 3215 { | |
| 3216 Label ok; | |
| 3839 | 3217 __ br_notnull_short(G5_method, Assembler::pt, ok); |
| 0 | 3218 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
| 3219 __ should_not_reach_here(); | |
| 3220 __ bind(ok); | |
| 3221 } | |
| 3222 | |
| 3223 Register Rcall = Rinterface; | |
| 3224 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 3225 | |
| 3226 __ call_from_interpreter(Rcall, Gargs, Rret); | |
|
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|
3227 } |
|
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|
3228 |
|
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|
3229 void TemplateTable::invokehandle(int byte_no) { |
|
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|
3230 transition(vtos, vtos); |
|
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3231 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3232 |
|
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|
3233 if (!EnableInvokeDynamic) { |
|
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|
3234 // rewriter does not generate this bytecode |
|
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|
3235 __ should_not_reach_here(); |
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|
3236 return; |
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|
3237 } |
|
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|
3238 |
|
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|
3239 const Register Rret = Lscratch; |
|
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3240 const Register G4_mtype = G4_scratch; |
|
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3241 const Register O0_recv = O0; |
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3242 const Register Rscratch = G3_scratch; |
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|
3243 |
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|
3244 prepare_invoke(byte_no, G5_method, Rret, G4_mtype, O0_recv); |
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|
3245 __ null_check(O0_recv); |
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|
3246 |
|
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3247 // G4: MethodType object (from cpool->resolved_references[f1], if necessary) |
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3248 // G5: MH.invokeExact_MT method (from f2) |
|
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|
3249 |
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|
3250 // Note: G4_mtype is already pushed (if necessary) by prepare_invoke |
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|
3251 |
|
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|
3252 // do the call |
|
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3253 __ verify_oop(G4_mtype); |
|
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|
3254 __ profile_final_call(O4); // FIXME: profile the LambdaForm also |
|
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|
3255 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 0 | 3256 } |
| 3257 | |
| 3258 | |
|
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diff
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|
3259 void TemplateTable::invokedynamic(int byte_no) { |
|
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|
3260 transition(vtos, vtos); |
|
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|
3261 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3262 |
|
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diff
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|
3263 if (!EnableInvokeDynamic) { |
|
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605
diff
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|
3264 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
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6655646: dynamic languages need dynamically linked call sites
jrose
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diff
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|
3265 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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605
diff
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|
3266 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
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diff
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|
3267 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
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6655646: dynamic languages need dynamically linked call sites
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diff
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|
3268 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
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|
3269 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
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|
3270 __ should_not_reach_here(); |
|
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|
3271 return; |
|
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jrose
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diff
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|
3272 } |
|
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|
3273 |
|
6266
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|
3274 const Register Rret = Lscratch; |
|
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|
3275 const Register G4_callsite = G4_scratch; |
|
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|
3276 const Register Rscratch = G3_scratch; |
|
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|
3277 |
|
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|
3278 prepare_invoke(byte_no, G5_method, Rret, G4_callsite); |
|
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|
3279 |
|
6822
f6b0eb4e44cf
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|
3280 // G4: CallSite object (from cpool->resolved_references[f1]) |
|
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|
3281 // G5: MH.linkToCallSite method (from f2) |
|
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3282 |
|
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|
3283 // Note: G4_callsite is already pushed by prepare_invoke |
|
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|
3284 |
|
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|
3285 // %%% should make a type profile for any invokedynamic that takes a ref argument |
| 1503 | 3286 // profile this call |
| 3287 __ profile_call(O4); | |
| 3288 | |
|
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|
3289 // do the call |
|
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|
3290 __ verify_oop(G4_callsite); |
|
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|
3291 __ call_from_interpreter(Rscratch, Gargs, Rret); |
|
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|
3292 } |
|
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|
3293 |
|
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|
3294 |
| 0 | 3295 //---------------------------------------------------------------------------------------------------- |
| 3296 // Allocation | |
| 3297 | |
| 3298 void TemplateTable::_new() { | |
| 3299 transition(vtos, atos); | |
| 3300 | |
| 3301 Label slow_case; | |
| 3302 Label done; | |
| 3303 Label initialize_header; | |
| 3304 Label initialize_object; // including clearing the fields | |
| 3305 | |
| 3306 Register RallocatedObject = Otos_i; | |
| 3307 Register RinstanceKlass = O1; | |
| 3308 Register Roffset = O3; | |
| 3309 Register Rscratch = O4; | |
| 3310 | |
| 3311 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3312 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
| 3313 // make sure the class we're about to instantiate has been resolved | |
|
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3314 // This is done before loading InstanceKlass to be consistent with the order |
|
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3315 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
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|
3316 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3317 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3318 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3319 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3320 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
|
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|
3321 // get InstanceKlass |
| 0 | 3322 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
|
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|
3323 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3324 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); |
| 3325 | |
| 3326 // make sure klass is fully initialized: | |
|
6725
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|
3327 __ ldub(RinstanceKlass, in_bytes(InstanceKlass::init_state_offset()), G3_scratch); |
|
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|
3328 __ cmp(G3_scratch, InstanceKlass::fully_initialized); |
| 0 | 3329 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); |
|
4762
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stefank
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3892
diff
changeset
|
3330 __ delayed()->ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3331 |
|
6725
da91efe96a93
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|
3332 // get instance_size in InstanceKlass (already aligned) |
|
4762
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3892
diff
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|
3333 //__ ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3334 |
| 3335 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
| 3336 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
| 3337 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
| 3338 __ delayed()->nop(); | |
| 3339 | |
| 3340 // allocate the instance | |
| 3341 // 1) Try to allocate in the TLAB | |
| 3342 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
| 3343 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3344 // (creates a new TLAB, etc.) | |
| 3345 | |
| 3346 const bool allow_shared_alloc = | |
| 3347 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3348 | |
| 3349 if(UseTLAB) { | |
| 3350 Register RoldTopValue = RallocatedObject; | |
| 3892 | 3351 Register RtlabWasteLimitValue = G3_scratch; |
| 0 | 3352 Register RnewTopValue = G1_scratch; |
| 3353 Register RendValue = Rscratch; | |
| 3354 Register RfreeValue = RnewTopValue; | |
| 3355 | |
| 3356 // check if we can allocate in the TLAB | |
| 3357 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
| 3358 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
| 3359 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3360 | |
| 3361 // if there is enough space, we do not CAS and do not clear | |
| 3362 __ cmp(RnewTopValue, RendValue); | |
| 3363 if(ZeroTLAB) { | |
| 3364 // the fields have already been cleared | |
| 3365 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
| 3366 } else { | |
| 3367 // initialize both the header and fields | |
| 3368 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
| 3369 } | |
| 3370 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
| 3371 | |
| 3372 if (allow_shared_alloc) { | |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
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|
3373 // Check if tlab should be discarded (refill_waste_limit >= free) |
|
b1a2afa37ec4
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diff
changeset
|
3374 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3375 __ sub(RendValue, RoldTopValue, RfreeValue); |
| 0 | 3376 #ifdef _LP64 |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3377 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3378 #else |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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1972
diff
changeset
|
3379 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3380 #endif |
| 3839 | 3381 __ cmp_and_brx_short(RtlabWasteLimitValue, RfreeValue, Assembler::greaterEqualUnsigned, Assembler::pt, slow_case); // tlab waste is small |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3382 |
|
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3383 // increment waste limit to prevent getting stuck on this slow path |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3384 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
|
b1a2afa37ec4
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diff
changeset
|
3385 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
| 0 | 3386 } else { |
| 3387 // No allocation in the shared eden. | |
| 3839 | 3388 __ ba_short(slow_case); |
| 0 | 3389 } |
| 3390 } | |
| 3391 | |
| 3392 // Allocation in the shared Eden | |
| 3393 if (allow_shared_alloc) { | |
| 3394 Register RoldTopValue = G1_scratch; | |
| 3395 Register RtopAddr = G3_scratch; | |
| 3396 Register RnewTopValue = RallocatedObject; | |
| 3397 Register RendValue = Rscratch; | |
| 3398 | |
| 3399 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
| 3400 | |
| 3401 Label retry; | |
| 3402 __ bind(retry); | |
| 3403 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
| 3404 __ ld_ptr(RendValue, 0, RendValue); | |
| 3405 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
| 3406 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3407 | |
| 3408 // RnewTopValue contains the top address after the new object | |
| 3409 // has been allocated. | |
| 3839 | 3410 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
| 0 | 3411 |
| 3412 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
| 3413 VM_Version::v9_instructions_work() ? NULL : | |
| 3414 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
| 3415 | |
| 3416 // if someone beat us on the allocation, try again, otherwise continue | |
| 3839 | 3417 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
|
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|
3418 |
|
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diff
changeset
|
3419 // bump total bytes allocated by this thread |
|
2127
5577848f5923
7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument
phh
parents:
2100
diff
changeset
|
3420 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
|
5577848f5923
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2100
diff
changeset
|
3421 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
| 0 | 3422 } |
| 3423 | |
| 3424 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3425 // clear object fields | |
| 3426 __ bind(initialize_object); | |
| 3427 __ deccc(Roffset, sizeof(oopDesc)); | |
| 3428 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
| 3429 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
| 3430 | |
| 3431 // initialize remaining object fields | |
| 3892 | 3432 if (UseBlockZeroing) { |
| 3433 // Use BIS for zeroing | |
| 3434 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
| 3435 } else { | |
| 3436 Label loop; | |
| 0 | 3437 __ subcc(Roffset, wordSize, Roffset); |
| 3438 __ bind(loop); | |
| 3439 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
| 3440 __ st_ptr(G0, G3_scratch, Roffset); | |
| 3441 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
| 3442 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
| 3443 } | |
| 3839 | 3444 __ ba_short(initialize_header); |
| 0 | 3445 } |
| 3446 | |
| 3447 // slow case | |
| 3448 __ bind(slow_case); | |
| 3449 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3450 __ get_constant_pool(O1); | |
| 3451 | |
| 3452 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
| 3453 | |
| 3839 | 3454 __ ba_short(done); |
| 0 | 3455 |
| 3456 // Initialize the header: mark, klass | |
| 3457 __ bind(initialize_header); | |
| 3458 | |
| 3459 if (UseBiasedLocking) { | |
|
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diff
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|
3460 __ ld_ptr(RinstanceKlass, in_bytes(Klass::prototype_header_offset()), G4_scratch); |
| 0 | 3461 } else { |
| 3462 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
| 3463 } | |
| 3464 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
|
167
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113
diff
changeset
|
3465 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
|
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|
3466 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
| 0 | 3467 |
| 3468 { | |
| 3469 SkipIfEqual skip_if( | |
| 3470 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
| 3471 // Trigger dtrace event | |
| 3472 __ push(atos); | |
| 3473 __ call_VM_leaf(noreg, | |
| 3474 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
| 3475 __ pop(atos); | |
| 3476 } | |
| 3477 | |
| 3478 // continue | |
| 3479 __ bind(done); | |
| 3480 } | |
| 3481 | |
| 3482 | |
| 3483 | |
| 3484 void TemplateTable::newarray() { | |
| 3485 transition(itos, atos); | |
| 3486 __ ldub(Lbcp, 1, O1); | |
| 3487 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
| 3488 } | |
| 3489 | |
| 3490 | |
| 3491 void TemplateTable::anewarray() { | |
| 3492 transition(itos, atos); | |
| 3493 __ get_constant_pool(O1); | |
| 3494 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3495 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
| 3496 } | |
| 3497 | |
| 3498 | |
| 3499 void TemplateTable::arraylength() { | |
| 3500 transition(atos, itos); | |
| 3501 Label ok; | |
| 3502 __ verify_oop(Otos_i); | |
| 3503 __ tst(Otos_i); | |
| 3504 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
| 3505 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
| 3506 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3507 } | |
| 3508 | |
| 3509 | |
| 3510 void TemplateTable::checkcast() { | |
| 3511 transition(atos, atos); | |
| 3512 Label done, is_null, quicked, cast_ok, resolved; | |
| 3513 Register Roffset = G1_scratch; | |
| 3514 Register RobjKlass = O5; | |
| 3515 Register RspecifiedKlass = O4; | |
| 3516 | |
| 3517 // Check for casting a NULL | |
| 3839 | 3518 __ br_null_short(Otos_i, Assembler::pn, is_null); |
| 0 | 3519 |
| 3520 // Get value klass in RobjKlass | |
|
113
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0
diff
changeset
|
3521 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3522 |
| 3523 // Get constant pool tag | |
| 3524 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3525 | |
| 3526 // See if the checkcast has been quickened | |
| 3527 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
|
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3528 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3529 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3530 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3531 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3532 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3533 | |
| 3534 __ push_ptr(); // save receiver for result, and for GC | |
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3535 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3536 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3537 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3538 | |
| 3839 | 3539 __ ba_short(resolved); |
| 0 | 3540 |
| 3541 // Extract target class from constant pool | |
| 3542 __ bind(quicked); | |
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3543 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3544 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); |
| 3545 __ bind(resolved); | |
|
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3546 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3547 |
| 3548 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3549 // failure. Throw exception if failure. | |
| 3550 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
| 3551 | |
| 3552 // Not a subtype; so must throw exception | |
| 3553 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
| 3554 | |
| 3555 __ bind(cast_ok); | |
| 3556 | |
| 3557 if (ProfileInterpreter) { | |
| 3839 | 3558 __ ba_short(done); |
| 0 | 3559 } |
| 3560 __ bind(is_null); | |
| 3561 __ profile_null_seen(G3_scratch); | |
| 3562 __ bind(done); | |
| 3563 } | |
| 3564 | |
| 3565 | |
| 3566 void TemplateTable::instanceof() { | |
| 3567 Label done, is_null, quicked, resolved; | |
| 3568 transition(atos, itos); | |
| 3569 Register Roffset = G1_scratch; | |
| 3570 Register RobjKlass = O5; | |
| 3571 Register RspecifiedKlass = O4; | |
| 3572 | |
| 3573 // Check for casting a NULL | |
| 3839 | 3574 __ br_null_short(Otos_i, Assembler::pt, is_null); |
| 0 | 3575 |
| 3576 // Get value klass in RobjKlass | |
|
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3577 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3578 |
| 3579 // Get constant pool tag | |
| 3580 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3581 | |
| 3582 // See if the checkcast has been quickened | |
| 3583 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3584 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3585 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3586 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3587 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3588 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3589 | |
| 3590 __ push_ptr(); // save receiver for result, and for GC | |
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3591 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3592 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3593 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3594 | |
| 3839 | 3595 __ ba_short(resolved); |
| 0 | 3596 |
| 3597 // Extract target class from constant pool | |
| 3598 __ bind(quicked); | |
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3599 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3600 __ get_constant_pool(Lscratch); |
| 3601 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3602 __ bind(resolved); | |
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3603 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3604 |
| 3605 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3606 // failure. Return 0 if failure. | |
| 3607 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
| 3608 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
| 3609 // Not a subtype; return 0; | |
| 3610 __ clr( Otos_i ); | |
| 3611 | |
| 3612 if (ProfileInterpreter) { | |
| 3839 | 3613 __ ba_short(done); |
| 0 | 3614 } |
| 3615 __ bind(is_null); | |
| 3616 __ profile_null_seen(G3_scratch); | |
| 3617 __ bind(done); | |
| 3618 } | |
| 3619 | |
| 3620 void TemplateTable::_breakpoint() { | |
| 3621 | |
| 3622 // Note: We get here even if we are single stepping.. | |
| 3623 // jbug inists on setting breakpoints at every bytecode | |
| 3624 // even if we are in single step mode. | |
| 3625 | |
| 3626 transition(vtos, vtos); | |
| 3627 // get the unpatched byte code | |
| 3628 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
| 3629 __ mov(O0, Lbyte_code); | |
| 3630 | |
| 3631 // post the breakpoint event | |
| 3632 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
| 3633 | |
| 3634 // complete the execution of original bytecode | |
| 3635 __ dispatch_normal(vtos); | |
| 3636 } | |
| 3637 | |
| 3638 | |
| 3639 //---------------------------------------------------------------------------------------------------- | |
| 3640 // Exceptions | |
| 3641 | |
| 3642 void TemplateTable::athrow() { | |
| 3643 transition(atos, vtos); | |
| 3644 | |
| 3645 // This works because exception is cached in Otos_i which is same as O0, | |
| 3646 // which is same as what throw_exception_entry_expects | |
| 3647 assert(Otos_i == Oexception, "see explanation above"); | |
| 3648 | |
| 3649 __ verify_oop(Otos_i); | |
| 3650 __ null_check(Otos_i); | |
| 3651 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
| 3652 } | |
| 3653 | |
| 3654 | |
| 3655 //---------------------------------------------------------------------------------------------------- | |
| 3656 // Synchronization | |
| 3657 | |
| 3658 | |
| 3659 // See frame_sparc.hpp for monitor block layout. | |
| 3660 // Monitor elements are dynamically allocated by growing stack as needed. | |
| 3661 | |
| 3662 void TemplateTable::monitorenter() { | |
| 3663 transition(atos, vtos); | |
| 3664 __ verify_oop(Otos_i); | |
| 3665 // Try to acquire a lock on the object | |
| 3666 // Repeat until succeeded (i.e., until | |
| 3667 // monitorenter returns true). | |
| 3668 | |
| 3669 { Label ok; | |
| 3670 __ tst(Otos_i); | |
| 3671 __ throw_if_not_1_x( Assembler::notZero, ok); | |
| 3672 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
| 3673 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3674 } | |
| 3675 | |
| 3676 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
| 3677 | |
| 3678 // find a free slot in the monitor block | |
| 3679 | |
| 3680 | |
| 3681 // initialize entry pointer | |
| 3682 __ clr(O1); // points to free slot or NULL | |
| 3683 | |
| 3684 { | |
| 3685 Label entry, loop, exit; | |
| 3686 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3687 __ ba( entry ); |
| 0 | 3688 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
| 3689 | |
| 3690 | |
| 3691 __ bind( loop ); | |
| 3692 | |
| 3693 __ verify_oop(O4); // verify each monitor's oop | |
| 3694 __ tst(O4); // is this entry unused? | |
| 3695 if (VM_Version::v9_instructions_work()) | |
| 3696 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
| 3697 else { | |
| 3698 Label L; | |
| 3699 __ br( Assembler::zero, true, Assembler::pn, L ); | |
| 3700 __ delayed()->mov(O3, O1); // rememeber this one if match | |
| 3701 __ bind(L); | |
| 3702 } | |
| 3703 | |
| 3704 __ cmp(O4, O0); // check if current entry is for same object | |
| 3705 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
| 3706 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
| 3707 | |
| 3708 __ bind( entry ); | |
| 3709 | |
| 3710 __ cmp( O3, O2 ); | |
| 3711 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3712 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3713 | |
| 3714 __ bind( exit ); | |
| 3715 } | |
| 3716 | |
| 3717 { Label allocated; | |
| 3718 | |
| 3719 // found free slot? | |
| 3839 | 3720 __ br_notnull_short(O1, Assembler::pn, allocated); |
| 0 | 3721 |
| 3722 __ add_monitor_to_stack( false, O2, O3 ); | |
| 3723 __ mov(Lmonitors, O1); | |
| 3724 | |
| 3725 __ bind(allocated); | |
| 3726 } | |
| 3727 | |
| 3728 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3729 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3730 __ inc(Lbcp); | |
| 3731 | |
| 3732 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
| 3733 __ lock_object(O1, O0); | |
| 3734 | |
| 3735 // check if there's enough space on the stack for the monitors after locking | |
| 3736 __ generate_stack_overflow_check(0); | |
| 3737 | |
| 3738 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3739 __ dispatch_next(vtos); | |
| 3740 } | |
| 3741 | |
| 3742 | |
| 3743 void TemplateTable::monitorexit() { | |
| 3744 transition(atos, vtos); | |
| 3745 __ verify_oop(Otos_i); | |
| 3746 __ tst(Otos_i); | |
| 3747 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
| 3748 | |
| 3749 assert(O0 == Otos_i, "just checking"); | |
| 3750 | |
| 3751 { Label entry, loop, found; | |
| 3752 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3753 __ ba(entry); |
| 0 | 3754 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
| 3755 // By using a local it survives the call to the C routine. | |
| 3756 __ delayed()->mov( Lmonitors, Lscratch ); | |
| 3757 | |
| 3758 __ bind( loop ); | |
| 3759 | |
| 3760 __ verify_oop(O4); // verify each monitor's oop | |
| 3761 __ cmp(O4, O0); // check if current entry is for desired object | |
| 3762 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
| 3763 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
| 3764 | |
| 3765 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
| 3766 | |
| 3767 __ bind( entry ); | |
| 3768 | |
| 3769 __ cmp( Lscratch, O2 ); | |
| 3770 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3771 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3772 | |
| 3773 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3774 __ should_not_reach_here(); | |
| 3775 | |
| 3776 __ bind(found); | |
| 3777 } | |
| 3778 __ unlock_object(O1); | |
| 3779 } | |
| 3780 | |
| 3781 | |
| 3782 //---------------------------------------------------------------------------------------------------- | |
| 3783 // Wide instructions | |
| 3784 | |
| 3785 void TemplateTable::wide() { | |
| 3786 transition(vtos, vtos); | |
| 3787 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
| 3788 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
| 727 | 3789 AddressLiteral ep(Interpreter::_wentry_point); |
| 3790 __ set(ep, G4_scratch); | |
| 3791 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
| 0 | 3792 __ jmp(G3_scratch, G0); |
| 3793 __ delayed()->nop(); | |
| 3794 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
| 3795 } | |
| 3796 | |
| 3797 | |
| 3798 //---------------------------------------------------------------------------------------------------- | |
| 3799 // Multi arrays | |
| 3800 | |
| 3801 void TemplateTable::multianewarray() { | |
| 3802 transition(vtos, atos); | |
| 3803 // put ndims * wordSize into Lscratch | |
| 3804 __ ldub( Lbcp, 3, Lscratch); | |
| 1506 | 3805 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
| 0 | 3806 // Lesp points past last_dim, so set to O1 to first_dim address |
| 3807 __ add( Lesp, Lscratch, O1); | |
| 3808 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
| 3809 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
| 3810 } | |
| 3811 #endif /* !CC_INTERP */ |