Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 8001:db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
Summary: Rename INCLUDE_ALTERNATE_GCS to INCLUDE_ALL_GCS and replace SERIALGC with INCLUDE_ALL_GCS.
Reviewed-by: coleenp, stefank
| author | jprovino |
|---|---|
| date | Wed, 23 Jan 2013 13:02:39 -0500 |
| parents | fd74228fd5ca |
| children | f16e75e0cf11 |
| 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" | |
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37 #include "utilities/macros.hpp" |
| 0 | 38 |
| 39 #ifndef CC_INTERP | |
| 40 #define __ _masm-> | |
| 41 | |
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42 // Misc helpers |
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43 |
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44 // Do an oop store like *(base + index + offset) = val |
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45 // index can be noreg, |
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46 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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47 Register base, |
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48 Register index, |
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49 int offset, |
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50 Register val, |
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51 Register tmp, |
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52 BarrierSet::Name barrier, |
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53 bool precise) { |
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54 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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55 assert(index == noreg || offset == 0, "only one offset"); |
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56 switch (barrier) { |
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57 #if INCLUDE_ALL_GCS |
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58 case BarrierSet::G1SATBCT: |
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59 case BarrierSet::G1SATBCTLogging: |
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60 { |
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61 // Load and record the previous value. |
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62 __ g1_write_barrier_pre(base, index, offset, |
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63 noreg /* pre_val */, |
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64 tmp, true /*preserve_o_regs*/); |
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65 |
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66 if (index == noreg ) { |
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67 assert(Assembler::is_simm13(offset), "fix this code"); |
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68 __ store_heap_oop(val, base, offset); |
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69 } else { |
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70 __ store_heap_oop(val, base, index); |
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71 } |
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72 |
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73 // No need for post barrier if storing NULL |
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74 if (val != G0) { |
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75 if (precise) { |
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76 if (index == noreg) { |
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77 __ add(base, offset, base); |
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78 } else { |
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79 __ add(base, index, base); |
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80 } |
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81 } |
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82 __ g1_write_barrier_post(base, val, tmp); |
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83 } |
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84 } |
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85 break; |
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86 #endif // INCLUDE_ALL_GCS |
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87 case BarrierSet::CardTableModRef: |
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88 case BarrierSet::CardTableExtension: |
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89 { |
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90 if (index == noreg ) { |
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91 assert(Assembler::is_simm13(offset), "fix this code"); |
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92 __ store_heap_oop(val, base, offset); |
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93 } else { |
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94 __ store_heap_oop(val, base, index); |
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95 } |
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96 // No need for post barrier if storing NULL |
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97 if (val != G0) { |
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98 if (precise) { |
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99 if (index == noreg) { |
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100 __ add(base, offset, base); |
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101 } else { |
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102 __ add(base, index, base); |
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103 } |
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104 } |
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105 __ card_write_barrier_post(base, val, tmp); |
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106 } |
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107 } |
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108 break; |
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109 case BarrierSet::ModRef: |
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110 case BarrierSet::Other: |
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111 ShouldNotReachHere(); |
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112 break; |
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113 default : |
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114 ShouldNotReachHere(); |
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115 |
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116 } |
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117 } |
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118 |
| 0 | 119 |
| 120 //---------------------------------------------------------------------------------------------------- | |
| 121 // Platform-dependent initialization | |
| 122 | |
| 123 void TemplateTable::pd_initialize() { | |
| 124 // (none) | |
| 125 } | |
| 126 | |
| 127 | |
| 128 //---------------------------------------------------------------------------------------------------- | |
| 129 // Condition conversion | |
| 130 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
| 131 switch (cc) { | |
| 132 case TemplateTable::equal : return Assembler::notEqual; | |
| 133 case TemplateTable::not_equal : return Assembler::equal; | |
| 134 case TemplateTable::less : return Assembler::greaterEqual; | |
| 135 case TemplateTable::less_equal : return Assembler::greater; | |
| 136 case TemplateTable::greater : return Assembler::lessEqual; | |
| 137 case TemplateTable::greater_equal: return Assembler::less; | |
| 138 } | |
| 139 ShouldNotReachHere(); | |
| 140 return Assembler::zero; | |
| 141 } | |
| 142 | |
| 143 //---------------------------------------------------------------------------------------------------- | |
| 144 // Miscelaneous helper routines | |
| 145 | |
| 146 | |
| 147 Address TemplateTable::at_bcp(int offset) { | |
| 148 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 727 | 149 return Address(Lbcp, offset); |
| 0 | 150 } |
| 151 | |
| 152 | |
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153 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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154 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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155 int byte_no) { |
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156 // With sharing on, may need to test Method* flag. |
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157 if (!RewriteBytecodes) return; |
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158 Label L_patch_done; |
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159 |
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160 switch (bc) { |
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161 case Bytecodes::_fast_aputfield: |
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162 case Bytecodes::_fast_bputfield: |
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163 case Bytecodes::_fast_cputfield: |
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164 case Bytecodes::_fast_dputfield: |
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165 case Bytecodes::_fast_fputfield: |
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166 case Bytecodes::_fast_iputfield: |
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167 case Bytecodes::_fast_lputfield: |
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168 case Bytecodes::_fast_sputfield: |
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169 { |
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170 // We skip bytecode quickening for putfield instructions when |
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171 // the put_code written to the constant pool cache is zero. |
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172 // This is required so that every execution of this instruction |
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173 // calls out to InterpreterRuntime::resolve_get_put to do |
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174 // additional, required work. |
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175 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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176 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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177 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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178 __ set(bc, bc_reg); |
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179 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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180 } |
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181 break; |
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182 default: |
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183 assert(byte_no == -1, "sanity"); |
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184 if (load_bc_into_bc_reg) { |
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185 __ set(bc, bc_reg); |
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186 } |
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187 } |
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188 |
| 0 | 189 if (JvmtiExport::can_post_breakpoint()) { |
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190 Label L_fast_patch; |
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191 __ ldub(at_bcp(0), temp_reg); |
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192 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
| 0 | 193 // perform the quickening, slowly, in the bowels of the breakpoint table |
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194 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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195 __ ba_short(L_patch_done); |
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196 __ bind(L_fast_patch); |
| 0 | 197 } |
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198 |
| 0 | 199 #ifdef ASSERT |
| 200 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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201 Label L_okay; |
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202 __ ldub(at_bcp(0), temp_reg); |
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203 __ cmp(temp_reg, orig_bytecode); |
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204 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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205 __ delayed()->cmp(temp_reg, bc_reg); |
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206 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
| 0 | 207 __ delayed()->nop(); |
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208 __ stop("patching the wrong bytecode"); |
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209 __ bind(L_okay); |
| 0 | 210 #endif |
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211 |
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212 // patch bytecode |
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213 __ stb(bc_reg, at_bcp(0)); |
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214 __ bind(L_patch_done); |
| 0 | 215 } |
| 216 | |
| 217 //---------------------------------------------------------------------------------------------------- | |
| 218 // Individual instructions | |
| 219 | |
| 220 void TemplateTable::nop() { | |
| 221 transition(vtos, vtos); | |
| 222 // nothing to do | |
| 223 } | |
| 224 | |
| 225 void TemplateTable::shouldnotreachhere() { | |
| 226 transition(vtos, vtos); | |
| 227 __ stop("shouldnotreachhere bytecode"); | |
| 228 } | |
| 229 | |
| 230 void TemplateTable::aconst_null() { | |
| 231 transition(vtos, atos); | |
| 232 __ clr(Otos_i); | |
| 233 } | |
| 234 | |
| 235 | |
| 236 void TemplateTable::iconst(int value) { | |
| 237 transition(vtos, itos); | |
| 238 __ set(value, Otos_i); | |
| 239 } | |
| 240 | |
| 241 | |
| 242 void TemplateTable::lconst(int value) { | |
| 243 transition(vtos, ltos); | |
| 244 assert(value >= 0, "check this code"); | |
| 245 #ifdef _LP64 | |
| 246 __ set(value, Otos_l); | |
| 247 #else | |
| 248 __ set(value, Otos_l2); | |
| 249 __ clr( Otos_l1); | |
| 250 #endif | |
| 251 } | |
| 252 | |
| 253 | |
| 254 void TemplateTable::fconst(int value) { | |
| 255 transition(vtos, ftos); | |
| 256 static float zero = 0.0, one = 1.0, two = 2.0; | |
| 257 float* p; | |
| 258 switch( value ) { | |
| 259 default: ShouldNotReachHere(); | |
| 260 case 0: p = &zero; break; | |
| 261 case 1: p = &one; break; | |
| 262 case 2: p = &two; break; | |
| 263 } | |
| 727 | 264 AddressLiteral a(p); |
| 265 __ sethi(a, G3_scratch); | |
| 266 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
| 0 | 267 } |
| 268 | |
| 269 | |
| 270 void TemplateTable::dconst(int value) { | |
| 271 transition(vtos, dtos); | |
| 272 static double zero = 0.0, one = 1.0; | |
| 273 double* p; | |
| 274 switch( value ) { | |
| 275 default: ShouldNotReachHere(); | |
| 276 case 0: p = &zero; break; | |
| 277 case 1: p = &one; break; | |
| 278 } | |
| 727 | 279 AddressLiteral a(p); |
| 280 __ sethi(a, G3_scratch); | |
| 281 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
| 0 | 282 } |
| 283 | |
| 284 | |
| 285 // %%%%% Should factore most snippet templates across platforms | |
| 286 | |
| 287 void TemplateTable::bipush() { | |
| 288 transition(vtos, itos); | |
| 289 __ ldsb( at_bcp(1), Otos_i ); | |
| 290 } | |
| 291 | |
| 292 void TemplateTable::sipush() { | |
| 293 transition(vtos, itos); | |
| 294 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
| 295 } | |
| 296 | |
| 297 void TemplateTable::ldc(bool wide) { | |
| 298 transition(vtos, vtos); | |
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299 Label call_ldc, notInt, isString, notString, notClass, exit; |
| 0 | 300 |
| 301 if (wide) { | |
| 302 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 303 } else { | |
| 304 __ ldub(Lbcp, 1, O1); | |
| 305 } | |
| 306 __ get_cpool_and_tags(O0, O2); | |
| 307 | |
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308 const int base_offset = ConstantPool::header_size() * wordSize; |
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309 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 310 |
| 311 // get type from tags | |
| 312 __ add(O2, tags_offset, O2); | |
| 313 __ ldub(O2, O1, O2); | |
| 3839 | 314 |
| 315 // unresolved class? If so, must resolve | |
| 316 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
| 317 | |
| 318 // unresolved class in error state | |
| 319 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
| 0 | 320 |
| 321 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
| 322 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
| 323 __ delayed()->add(O0, base_offset, O0); | |
| 324 | |
| 325 __ bind(call_ldc); | |
| 326 __ set(wide, O1); | |
| 327 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
| 328 __ push(atos); | |
| 3839 | 329 __ ba_short(exit); |
| 0 | 330 |
| 331 __ bind(notClass); | |
| 332 // __ add(O0, base_offset, O0); | |
| 333 __ sll(O1, LogBytesPerWord, O1); | |
| 334 __ cmp(O2, JVM_CONSTANT_Integer); | |
| 335 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
| 336 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
| 337 __ ld(O0, O1, Otos_i); | |
| 338 __ push(itos); | |
| 3839 | 339 __ ba_short(exit); |
| 0 | 340 |
| 341 __ bind(notInt); | |
| 342 // __ cmp(O2, JVM_CONSTANT_String); | |
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343 __ brx(Assembler::equal, true, Assembler::pt, isString); |
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344 __ delayed()->cmp(O2, JVM_CONSTANT_Object); |
| 0 | 345 __ brx(Assembler::notEqual, true, Assembler::pt, notString); |
| 346 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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347 __ bind(isString); |
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348 __ stop("string should be rewritten to fast_aldc"); |
| 3839 | 349 __ ba_short(exit); |
| 0 | 350 |
| 351 __ bind(notString); | |
| 352 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
| 353 __ push(ftos); | |
| 354 | |
| 355 __ bind(exit); | |
| 356 } | |
| 357 | |
| 1602 | 358 // Fast path for caching oop constants. |
| 359 // %%% We should use this to handle Class and String constants also. | |
| 360 // %%% It will simplify the ldc/primitive path considerably. | |
| 361 void TemplateTable::fast_aldc(bool wide) { | |
| 362 transition(vtos, atos); | |
| 363 | |
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364 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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365 Label resolved; |
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366 |
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367 // We are resolved if the resolved reference cache entry contains a |
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368 // non-null object (CallSite, etc.) |
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369 assert_different_registers(Otos_i, G3_scratch); |
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370 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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371 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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372 __ tst(Otos_i); |
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373 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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374 __ delayed()->set((int)bytecode(), O1); |
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375 |
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376 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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377 |
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378 // first time invocation - must resolve first |
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379 __ call_VM(Otos_i, entry, O1); |
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380 __ bind(resolved); |
| 1602 | 381 __ verify_oop(Otos_i); |
| 382 } | |
| 383 | |
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384 |
| 0 | 385 void TemplateTable::ldc2_w() { |
| 386 transition(vtos, vtos); | |
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387 Label Long, exit; |
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388 |
| 0 | 389 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
| 390 __ get_cpool_and_tags(O0, O2); | |
| 391 | |
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392 const int base_offset = ConstantPool::header_size() * wordSize; |
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393 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 394 // get type from tags |
| 395 __ add(O2, tags_offset, O2); | |
| 396 __ ldub(O2, O1, O2); | |
| 397 | |
| 398 __ sll(O1, LogBytesPerWord, O1); | |
| 399 __ add(O0, O1, G3_scratch); | |
| 400 | |
| 3839 | 401 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
| 0 | 402 // A double can be placed at word-aligned locations in the constant pool. |
| 403 // Check out Conversions.java for an example. | |
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404 // Also ConstantPool::header_size() is 20, which makes it very difficult |
| 0 | 405 // to double-align double on the constant pool. SG, 11/7/97 |
| 406 #ifdef _LP64 | |
| 407 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
| 408 #else | |
| 409 FloatRegister f = Ftos_d; | |
| 410 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
| 411 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
| 412 f->successor()); | |
| 413 #endif | |
| 414 __ push(dtos); | |
| 3839 | 415 __ ba_short(exit); |
| 0 | 416 |
| 417 __ bind(Long); | |
| 418 #ifdef _LP64 | |
| 419 __ ldx(G3_scratch, base_offset, Otos_l); | |
| 420 #else | |
| 421 __ ld(G3_scratch, base_offset, Otos_l); | |
| 422 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
| 423 #endif | |
| 424 __ push(ltos); | |
| 425 | |
| 426 __ bind(exit); | |
| 427 } | |
| 428 | |
| 429 | |
| 430 void TemplateTable::locals_index(Register reg, int offset) { | |
| 431 __ ldub( at_bcp(offset), reg ); | |
| 432 } | |
| 433 | |
| 434 | |
| 435 void TemplateTable::locals_index_wide(Register reg) { | |
| 436 // offset is 2, not 1, because Lbcp points to wide prefix code | |
| 437 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
| 438 } | |
| 439 | |
| 440 void TemplateTable::iload() { | |
| 441 transition(vtos, itos); | |
| 442 // Rewrite iload,iload pair into fast_iload2 | |
| 443 // iload,caload pair into fast_icaload | |
| 444 if (RewriteFrequentPairs) { | |
| 445 Label rewrite, done; | |
| 446 | |
| 447 // get next byte | |
| 448 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
| 449 | |
| 450 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 451 // last two iloads in a pair. Comparing against fast_iload means that | |
| 452 // the next bytecode is neither an iload or a caload, and therefore | |
| 453 // an iload pair. | |
| 3839 | 454 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
| 0 | 455 |
| 456 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
| 457 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 458 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
| 459 | |
| 460 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
| 461 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 462 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
| 463 | |
| 464 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
| 465 // rewrite | |
| 466 // G4_scratch: fast bytecode | |
| 467 __ bind(rewrite); | |
| 468 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
| 469 __ bind(done); | |
| 470 } | |
| 471 | |
| 472 // Get the local value into tos | |
| 473 locals_index(G3_scratch); | |
| 474 __ access_local_int( G3_scratch, Otos_i ); | |
| 475 } | |
| 476 | |
| 477 void TemplateTable::fast_iload2() { | |
| 478 transition(vtos, itos); | |
| 479 locals_index(G3_scratch); | |
| 480 __ access_local_int( G3_scratch, Otos_i ); | |
| 481 __ push_i(); | |
| 482 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
| 483 __ access_local_int( G3_scratch, Otos_i ); | |
| 484 } | |
| 485 | |
| 486 void TemplateTable::fast_iload() { | |
| 487 transition(vtos, itos); | |
| 488 locals_index(G3_scratch); | |
| 489 __ access_local_int( G3_scratch, Otos_i ); | |
| 490 } | |
| 491 | |
| 492 void TemplateTable::lload() { | |
| 493 transition(vtos, ltos); | |
| 494 locals_index(G3_scratch); | |
| 495 __ access_local_long( G3_scratch, Otos_l ); | |
| 496 } | |
| 497 | |
| 498 | |
| 499 void TemplateTable::fload() { | |
| 500 transition(vtos, ftos); | |
| 501 locals_index(G3_scratch); | |
| 502 __ access_local_float( G3_scratch, Ftos_f ); | |
| 503 } | |
| 504 | |
| 505 | |
| 506 void TemplateTable::dload() { | |
| 507 transition(vtos, dtos); | |
| 508 locals_index(G3_scratch); | |
| 509 __ access_local_double( G3_scratch, Ftos_d ); | |
| 510 } | |
| 511 | |
| 512 | |
| 513 void TemplateTable::aload() { | |
| 514 transition(vtos, atos); | |
| 515 locals_index(G3_scratch); | |
| 516 __ access_local_ptr( G3_scratch, Otos_i); | |
| 517 } | |
| 518 | |
| 519 | |
| 520 void TemplateTable::wide_iload() { | |
| 521 transition(vtos, itos); | |
| 522 locals_index_wide(G3_scratch); | |
| 523 __ access_local_int( G3_scratch, Otos_i ); | |
| 524 } | |
| 525 | |
| 526 | |
| 527 void TemplateTable::wide_lload() { | |
| 528 transition(vtos, ltos); | |
| 529 locals_index_wide(G3_scratch); | |
| 530 __ access_local_long( G3_scratch, Otos_l ); | |
| 531 } | |
| 532 | |
| 533 | |
| 534 void TemplateTable::wide_fload() { | |
| 535 transition(vtos, ftos); | |
| 536 locals_index_wide(G3_scratch); | |
| 537 __ access_local_float( G3_scratch, Ftos_f ); | |
| 538 } | |
| 539 | |
| 540 | |
| 541 void TemplateTable::wide_dload() { | |
| 542 transition(vtos, dtos); | |
| 543 locals_index_wide(G3_scratch); | |
| 544 __ access_local_double( G3_scratch, Ftos_d ); | |
| 545 } | |
| 546 | |
| 547 | |
| 548 void TemplateTable::wide_aload() { | |
| 549 transition(vtos, atos); | |
| 550 locals_index_wide(G3_scratch); | |
| 551 __ access_local_ptr( G3_scratch, Otos_i ); | |
| 552 __ verify_oop(Otos_i); | |
| 553 } | |
| 554 | |
| 555 | |
| 556 void TemplateTable::iaload() { | |
| 557 transition(itos, itos); | |
| 558 // Otos_i: index | |
| 559 // tos: array | |
| 560 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 561 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
| 562 } | |
| 563 | |
| 564 | |
| 565 void TemplateTable::laload() { | |
| 566 transition(itos, ltos); | |
| 567 // Otos_i: index | |
| 568 // O2: array | |
| 569 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 570 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
| 571 } | |
| 572 | |
| 573 | |
| 574 void TemplateTable::faload() { | |
| 575 transition(itos, ftos); | |
| 576 // Otos_i: index | |
| 577 // O2: array | |
| 578 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 579 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
| 580 } | |
| 581 | |
| 582 | |
| 583 void TemplateTable::daload() { | |
| 584 transition(itos, dtos); | |
| 585 // Otos_i: index | |
| 586 // O2: array | |
| 587 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 588 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
| 589 } | |
| 590 | |
| 591 | |
| 592 void TemplateTable::aaload() { | |
| 593 transition(itos, atos); | |
| 594 // Otos_i: index | |
| 595 // tos: array | |
|
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596 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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597 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
| 0 | 598 __ verify_oop(Otos_i); |
| 599 } | |
| 600 | |
| 601 | |
| 602 void TemplateTable::baload() { | |
| 603 transition(itos, itos); | |
| 604 // Otos_i: index | |
| 605 // tos: array | |
| 606 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
| 607 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
| 608 } | |
| 609 | |
| 610 | |
| 611 void TemplateTable::caload() { | |
| 612 transition(itos, itos); | |
| 613 // Otos_i: index | |
| 614 // tos: array | |
| 615 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 616 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 617 } | |
| 618 | |
| 619 void TemplateTable::fast_icaload() { | |
| 620 transition(vtos, itos); | |
| 621 // Otos_i: index | |
| 622 // tos: array | |
| 623 locals_index(G3_scratch); | |
| 624 __ access_local_int( G3_scratch, Otos_i ); | |
| 625 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 626 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 627 } | |
| 628 | |
| 629 | |
| 630 void TemplateTable::saload() { | |
| 631 transition(itos, itos); | |
| 632 // Otos_i: index | |
| 633 // tos: array | |
| 634 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 635 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
| 636 } | |
| 637 | |
| 638 | |
| 639 void TemplateTable::iload(int n) { | |
| 640 transition(vtos, itos); | |
| 641 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 642 } | |
| 643 | |
| 644 | |
| 645 void TemplateTable::lload(int n) { | |
| 646 transition(vtos, ltos); | |
| 647 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
| 648 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
| 649 } | |
| 650 | |
| 651 | |
| 652 void TemplateTable::fload(int n) { | |
| 653 transition(vtos, ftos); | |
| 654 assert(n < Argument::n_register_parameters, "would need more code"); | |
| 655 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
| 656 } | |
| 657 | |
| 658 | |
| 659 void TemplateTable::dload(int n) { | |
| 660 transition(vtos, dtos); | |
| 661 FloatRegister dst = Ftos_d; | |
| 662 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
| 663 } | |
| 664 | |
| 665 | |
| 666 void TemplateTable::aload(int n) { | |
| 667 transition(vtos, atos); | |
| 668 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 669 } | |
| 670 | |
| 671 | |
| 672 void TemplateTable::aload_0() { | |
| 673 transition(vtos, atos); | |
| 674 | |
| 675 // According to bytecode histograms, the pairs: | |
| 676 // | |
| 677 // _aload_0, _fast_igetfield (itos) | |
| 678 // _aload_0, _fast_agetfield (atos) | |
| 679 // _aload_0, _fast_fgetfield (ftos) | |
| 680 // | |
| 681 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 682 // bytecode checks the next bytecode and then rewrites the current | |
| 683 // bytecode into a pair bytecode; otherwise it rewrites the current | |
| 684 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 685 // | |
| 686 if (RewriteFrequentPairs) { | |
| 687 Label rewrite, done; | |
| 688 | |
| 689 // get next byte | |
| 690 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
| 691 | |
| 692 // do actual aload_0 | |
| 693 aload(0); | |
| 694 | |
| 695 // if _getfield then wait with rewrite | |
| 3839 | 696 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
| 0 | 697 |
| 698 // if _igetfield then rewrite to _fast_iaccess_0 | |
| 699 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 700 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
| 701 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 702 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
| 703 | |
| 704 // if _agetfield then rewrite to _fast_aaccess_0 | |
| 705 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 706 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
| 707 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 708 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
| 709 | |
| 710 // if _fgetfield then rewrite to _fast_faccess_0 | |
| 711 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 712 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
| 713 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 714 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
| 715 | |
| 716 // else rewrite to _fast_aload0 | |
| 717 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 718 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
| 719 | |
| 720 // rewrite | |
| 721 // G4_scratch: fast bytecode | |
| 722 __ bind(rewrite); | |
| 723 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
| 724 __ bind(done); | |
| 725 } else { | |
| 726 aload(0); | |
| 727 } | |
| 728 } | |
| 729 | |
| 730 | |
| 731 void TemplateTable::istore() { | |
| 732 transition(itos, vtos); | |
| 733 locals_index(G3_scratch); | |
| 734 __ store_local_int( G3_scratch, Otos_i ); | |
| 735 } | |
| 736 | |
| 737 | |
| 738 void TemplateTable::lstore() { | |
| 739 transition(ltos, vtos); | |
| 740 locals_index(G3_scratch); | |
| 741 __ store_local_long( G3_scratch, Otos_l ); | |
| 742 } | |
| 743 | |
| 744 | |
| 745 void TemplateTable::fstore() { | |
| 746 transition(ftos, vtos); | |
| 747 locals_index(G3_scratch); | |
| 748 __ store_local_float( G3_scratch, Ftos_f ); | |
| 749 } | |
| 750 | |
| 751 | |
| 752 void TemplateTable::dstore() { | |
| 753 transition(dtos, vtos); | |
| 754 locals_index(G3_scratch); | |
| 755 __ store_local_double( G3_scratch, Ftos_d ); | |
| 756 } | |
| 757 | |
| 758 | |
| 759 void TemplateTable::astore() { | |
| 760 transition(vtos, vtos); | |
| 1506 | 761 __ load_ptr(0, Otos_i); |
| 762 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 763 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 764 locals_index(G3_scratch); | |
| 1506 | 765 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 766 } |
| 767 | |
| 768 | |
| 769 void TemplateTable::wide_istore() { | |
| 770 transition(vtos, vtos); | |
| 771 __ pop_i(); | |
| 772 locals_index_wide(G3_scratch); | |
| 773 __ store_local_int( G3_scratch, Otos_i ); | |
| 774 } | |
| 775 | |
| 776 | |
| 777 void TemplateTable::wide_lstore() { | |
| 778 transition(vtos, vtos); | |
| 779 __ pop_l(); | |
| 780 locals_index_wide(G3_scratch); | |
| 781 __ store_local_long( G3_scratch, Otos_l ); | |
| 782 } | |
| 783 | |
| 784 | |
| 785 void TemplateTable::wide_fstore() { | |
| 786 transition(vtos, vtos); | |
| 787 __ pop_f(); | |
| 788 locals_index_wide(G3_scratch); | |
| 789 __ store_local_float( G3_scratch, Ftos_f ); | |
| 790 } | |
| 791 | |
| 792 | |
| 793 void TemplateTable::wide_dstore() { | |
| 794 transition(vtos, vtos); | |
| 795 __ pop_d(); | |
| 796 locals_index_wide(G3_scratch); | |
| 797 __ store_local_double( G3_scratch, Ftos_d ); | |
| 798 } | |
| 799 | |
| 800 | |
| 801 void TemplateTable::wide_astore() { | |
| 802 transition(vtos, vtos); | |
| 1506 | 803 __ load_ptr(0, Otos_i); |
| 804 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 805 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 806 locals_index_wide(G3_scratch); | |
| 1506 | 807 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 808 } |
| 809 | |
| 810 | |
| 811 void TemplateTable::iastore() { | |
| 812 transition(itos, vtos); | |
| 813 __ pop_i(O2); // index | |
| 814 // Otos_i: val | |
| 815 // O3: array | |
| 816 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 817 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
| 818 } | |
| 819 | |
| 820 | |
| 821 void TemplateTable::lastore() { | |
| 822 transition(ltos, vtos); | |
| 823 __ pop_i(O2); // index | |
| 824 // Otos_l: val | |
| 825 // O3: array | |
| 826 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 827 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
| 828 } | |
| 829 | |
| 830 | |
| 831 void TemplateTable::fastore() { | |
| 832 transition(ftos, vtos); | |
| 833 __ pop_i(O2); // index | |
| 834 // Ftos_f: val | |
| 835 // O3: array | |
| 836 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 837 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
| 838 } | |
| 839 | |
| 840 | |
| 841 void TemplateTable::dastore() { | |
| 842 transition(dtos, vtos); | |
| 843 __ pop_i(O2); // index | |
| 844 // Fos_d: val | |
| 845 // O3: array | |
| 846 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 847 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
| 848 } | |
| 849 | |
| 850 | |
| 851 void TemplateTable::aastore() { | |
| 852 Label store_ok, is_null, done; | |
| 853 transition(vtos, vtos); | |
| 854 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 855 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
| 856 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
| 857 // Otos_i: val | |
| 858 // O2: index | |
| 859 // O3: array | |
| 860 __ verify_oop(Otos_i); | |
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861 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
| 0 | 862 |
| 863 // do array store check - check for NULL value first | |
| 3839 | 864 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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865 |
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866 __ load_klass(O3, O4); // get array klass |
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867 __ load_klass(Otos_i, O5); // get value klass |
| 0 | 868 |
| 869 // do fast instanceof cache test | |
| 870 | |
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871 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
| 0 | 872 |
| 873 assert(Otos_i == O0, "just checking"); | |
| 874 | |
| 875 // Otos_i: value | |
| 876 // O1: addr - offset | |
| 877 // O2: index | |
| 878 // O3: array | |
| 879 // O4: array element klass | |
| 880 // O5: value klass | |
| 881 | |
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882 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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883 |
| 0 | 884 // Generate a fast subtype check. Branch to store_ok if no |
| 885 // failure. Throw if failure. | |
| 886 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
| 887 | |
| 888 // Not a subtype; so must throw exception | |
| 889 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
| 890 | |
| 891 // Store is OK. | |
| 892 __ bind(store_ok); | |
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893 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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894 |
| 3839 | 895 __ ba(done); |
| 1506 | 896 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 897 |
| 898 __ bind(is_null); | |
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899 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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900 |
| 0 | 901 __ profile_null_seen(G3_scratch); |
| 1506 | 902 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 903 __ bind(done); |
| 904 } | |
| 905 | |
| 906 | |
| 907 void TemplateTable::bastore() { | |
| 908 transition(itos, vtos); | |
| 909 __ pop_i(O2); // index | |
| 910 // Otos_i: val | |
| 911 // O3: array | |
| 912 __ index_check(O3, O2, 0, G3_scratch, O2); | |
| 913 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
| 914 } | |
| 915 | |
| 916 | |
| 917 void TemplateTable::castore() { | |
| 918 transition(itos, vtos); | |
| 919 __ pop_i(O2); // index | |
| 920 // Otos_i: val | |
| 921 // O3: array | |
| 922 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
| 923 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
| 924 } | |
| 925 | |
| 926 | |
| 927 void TemplateTable::sastore() { | |
| 928 // %%%%% Factor across platform | |
| 929 castore(); | |
| 930 } | |
| 931 | |
| 932 | |
| 933 void TemplateTable::istore(int n) { | |
| 934 transition(itos, vtos); | |
| 935 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 936 } | |
| 937 | |
| 938 | |
| 939 void TemplateTable::lstore(int n) { | |
| 940 transition(ltos, vtos); | |
| 941 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
| 942 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 943 | |
| 944 } | |
| 945 | |
| 946 | |
| 947 void TemplateTable::fstore(int n) { | |
| 948 transition(ftos, vtos); | |
| 949 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
| 950 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 951 } | |
| 952 | |
| 953 | |
| 954 void TemplateTable::dstore(int n) { | |
| 955 transition(dtos, vtos); | |
| 956 FloatRegister src = Ftos_d; | |
| 957 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 958 } | |
| 959 | |
| 960 | |
| 961 void TemplateTable::astore(int n) { | |
| 962 transition(vtos, vtos); | |
| 1506 | 963 __ load_ptr(0, Otos_i); |
| 964 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 965 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 1506 | 966 __ store_local_ptr(n, Otos_i); |
| 0 | 967 } |
| 968 | |
| 969 | |
| 970 void TemplateTable::pop() { | |
| 971 transition(vtos, vtos); | |
| 1506 | 972 __ inc(Lesp, Interpreter::stackElementSize); |
| 0 | 973 } |
| 974 | |
| 975 | |
| 976 void TemplateTable::pop2() { | |
| 977 transition(vtos, vtos); | |
| 1506 | 978 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
| 0 | 979 } |
| 980 | |
| 981 | |
| 982 void TemplateTable::dup() { | |
| 983 transition(vtos, vtos); | |
| 984 // stack: ..., a | |
| 985 // load a and tag | |
| 1506 | 986 __ load_ptr(0, Otos_i); |
| 987 __ push_ptr(Otos_i); | |
| 0 | 988 // stack: ..., a, a |
| 989 } | |
| 990 | |
| 991 | |
| 992 void TemplateTable::dup_x1() { | |
| 993 transition(vtos, vtos); | |
| 994 // stack: ..., a, b | |
| 1506 | 995 __ load_ptr( 1, G3_scratch); // get a |
| 996 __ load_ptr( 0, Otos_l1); // get b | |
| 997 __ store_ptr(1, Otos_l1); // put b | |
| 998 __ store_ptr(0, G3_scratch); // put a - like swap | |
| 999 __ push_ptr(Otos_l1); // push b | |
| 0 | 1000 // stack: ..., b, a, b |
| 1001 } | |
| 1002 | |
| 1003 | |
| 1004 void TemplateTable::dup_x2() { | |
| 1005 transition(vtos, vtos); | |
| 1006 // stack: ..., a, b, c | |
| 1007 // get c and push on stack, reuse registers | |
| 1506 | 1008 __ load_ptr( 0, G3_scratch); // get c |
| 1009 __ push_ptr(G3_scratch); // push c with tag | |
| 0 | 1010 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
| 1011 // (stack offsets n+1 now) | |
| 1506 | 1012 __ load_ptr( 3, Otos_l1); // get a |
| 1013 __ store_ptr(3, G3_scratch); // put c at 3 | |
| 0 | 1014 // stack: ..., c, b, c, c (a in reg) |
| 1506 | 1015 __ load_ptr( 2, G3_scratch); // get b |
| 1016 __ store_ptr(2, Otos_l1); // put a at 2 | |
| 0 | 1017 // stack: ..., c, a, c, c (b in reg) |
| 1506 | 1018 __ store_ptr(1, G3_scratch); // put b at 1 |
| 0 | 1019 // stack: ..., c, a, b, c |
| 1020 } | |
| 1021 | |
| 1022 | |
| 1023 void TemplateTable::dup2() { | |
| 1024 transition(vtos, vtos); | |
| 1506 | 1025 __ load_ptr(1, G3_scratch); // get a |
| 1026 __ load_ptr(0, Otos_l1); // get b | |
| 1027 __ push_ptr(G3_scratch); // push a | |
| 1028 __ push_ptr(Otos_l1); // push b | |
| 0 | 1029 // stack: ..., a, b, a, b |
| 1030 } | |
| 1031 | |
| 1032 | |
| 1033 void TemplateTable::dup2_x1() { | |
| 1034 transition(vtos, vtos); | |
| 1035 // stack: ..., a, b, c | |
| 1506 | 1036 __ load_ptr( 1, Lscratch); // get b |
| 1037 __ load_ptr( 2, Otos_l1); // get a | |
| 1038 __ store_ptr(2, Lscratch); // put b at a | |
| 0 | 1039 // stack: ..., b, b, c |
| 1506 | 1040 __ load_ptr( 0, G3_scratch); // get c |
| 1041 __ store_ptr(1, G3_scratch); // put c at b | |
| 0 | 1042 // stack: ..., b, c, c |
| 1506 | 1043 __ store_ptr(0, Otos_l1); // put a at c |
| 0 | 1044 // stack: ..., b, c, a |
| 1506 | 1045 __ push_ptr(Lscratch); // push b |
| 1046 __ push_ptr(G3_scratch); // push c | |
| 0 | 1047 // stack: ..., b, c, a, b, c |
| 1048 } | |
| 1049 | |
| 1050 | |
| 1051 // The spec says that these types can be a mixture of category 1 (1 word) | |
| 1052 // types and/or category 2 types (long and doubles) | |
| 1053 void TemplateTable::dup2_x2() { | |
| 1054 transition(vtos, vtos); | |
| 1055 // stack: ..., a, b, c, d | |
| 1506 | 1056 __ load_ptr( 1, Lscratch); // get c |
| 1057 __ load_ptr( 3, Otos_l1); // get a | |
| 1058 __ store_ptr(3, Lscratch); // put c at 3 | |
| 1059 __ store_ptr(1, Otos_l1); // put a at 1 | |
| 0 | 1060 // stack: ..., c, b, a, d |
| 1506 | 1061 __ load_ptr( 2, G3_scratch); // get b |
| 1062 __ load_ptr( 0, Otos_l1); // get d | |
| 1063 __ store_ptr(0, G3_scratch); // put b at 0 | |
| 1064 __ store_ptr(2, Otos_l1); // put d at 2 | |
| 0 | 1065 // stack: ..., c, d, a, b |
| 1506 | 1066 __ push_ptr(Lscratch); // push c |
| 1067 __ push_ptr(Otos_l1); // push d | |
| 0 | 1068 // stack: ..., c, d, a, b, c, d |
| 1069 } | |
| 1070 | |
| 1071 | |
| 1072 void TemplateTable::swap() { | |
| 1073 transition(vtos, vtos); | |
| 1074 // stack: ..., a, b | |
| 1506 | 1075 __ load_ptr( 1, G3_scratch); // get a |
| 1076 __ load_ptr( 0, Otos_l1); // get b | |
| 1077 __ store_ptr(0, G3_scratch); // put b | |
| 1078 __ store_ptr(1, Otos_l1); // put a | |
| 0 | 1079 // stack: ..., b, a |
| 1080 } | |
| 1081 | |
| 1082 | |
| 1083 void TemplateTable::iop2(Operation op) { | |
| 1084 transition(itos, itos); | |
| 1085 __ pop_i(O1); | |
| 1086 switch (op) { | |
| 1087 case add: __ add(O1, Otos_i, Otos_i); break; | |
| 1088 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
| 1089 // %%%%% Mul may not exist: better to call .mul? | |
| 1090 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
| 1506 | 1091 case _and: __ and3(O1, Otos_i, Otos_i); break; |
| 1092 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
| 1093 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
| 0 | 1094 case shl: __ sll(O1, Otos_i, Otos_i); break; |
| 1095 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
| 1096 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
| 1097 default: ShouldNotReachHere(); | |
| 1098 } | |
| 1099 } | |
| 1100 | |
| 1101 | |
| 1102 void TemplateTable::lop2(Operation op) { | |
| 1103 transition(ltos, ltos); | |
| 1104 __ pop_l(O2); | |
| 1105 switch (op) { | |
| 1106 #ifdef _LP64 | |
| 1506 | 1107 case add: __ add(O2, Otos_l, Otos_l); break; |
| 1108 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
| 1109 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
| 1110 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
| 1111 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
| 0 | 1112 #else |
| 1113 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
| 1114 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
| 1506 | 1115 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
| 1116 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
| 1117 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
| 0 | 1118 #endif |
| 1119 default: ShouldNotReachHere(); | |
| 1120 } | |
| 1121 } | |
| 1122 | |
| 1123 | |
| 1124 void TemplateTable::idiv() { | |
| 1125 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
| 1126 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
| 1127 | |
| 1128 transition(itos, itos); | |
| 1129 __ pop_i(O1); // get 1st op | |
| 1130 | |
| 1131 // Y contains upper 32 bits of result, set it to 0 or all ones | |
| 1132 __ wry(G0); | |
| 1133 __ mov(~0, G3_scratch); | |
| 1134 | |
| 1135 __ tst(O1); | |
| 1136 Label neg; | |
| 1137 __ br(Assembler::negative, true, Assembler::pn, neg); | |
| 1138 __ delayed()->wry(G3_scratch); | |
| 1139 __ bind(neg); | |
| 1140 | |
| 1141 Label ok; | |
| 1142 __ tst(Otos_i); | |
| 1143 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
| 1144 | |
| 1145 const int min_int = 0x80000000; | |
| 1146 Label regular; | |
| 1147 __ cmp(Otos_i, -1); | |
| 1148 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
| 1149 #ifdef _LP64 | |
| 1150 // Don't put set in delay slot | |
| 1151 // Set will turn into multiple instructions in 64 bit mode | |
| 1152 __ delayed()->nop(); | |
| 1153 __ set(min_int, G4_scratch); | |
| 1154 #else | |
| 1155 __ delayed()->set(min_int, G4_scratch); | |
| 1156 #endif | |
| 1157 Label done; | |
| 1158 __ cmp(O1, G4_scratch); | |
| 1159 __ br(Assembler::equal, true, Assembler::pt, done); | |
| 1160 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
| 1161 | |
| 1162 __ bind(regular); | |
| 1163 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
| 1164 __ bind(done); | |
| 1165 } | |
| 1166 | |
| 1167 | |
| 1168 void TemplateTable::irem() { | |
| 1169 transition(itos, itos); | |
| 1170 __ mov(Otos_i, O2); // save divisor | |
| 1171 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
| 1172 __ smul(Otos_i, O2, Otos_i); | |
| 1173 __ sub(O1, Otos_i, Otos_i); | |
| 1174 } | |
| 1175 | |
| 1176 | |
| 1177 void TemplateTable::lmul() { | |
| 1178 transition(ltos, ltos); | |
| 1179 __ pop_l(O2); | |
| 1180 #ifdef _LP64 | |
| 1181 __ mulx(Otos_l, O2, Otos_l); | |
| 1182 #else | |
| 1183 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
| 1184 #endif | |
| 1185 | |
| 1186 } | |
| 1187 | |
| 1188 | |
| 1189 void TemplateTable::ldiv() { | |
| 1190 transition(ltos, ltos); | |
| 1191 | |
| 1192 // check for zero | |
| 1193 __ pop_l(O2); | |
| 1194 #ifdef _LP64 | |
| 1195 __ tst(Otos_l); | |
| 1196 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1197 __ sdivx(O2, Otos_l, Otos_l); | |
| 1198 #else | |
| 1199 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1200 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1201 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 1202 #endif | |
| 1203 } | |
| 1204 | |
| 1205 | |
| 1206 void TemplateTable::lrem() { | |
| 1207 transition(ltos, ltos); | |
| 1208 | |
| 1209 // check for zero | |
| 1210 __ pop_l(O2); | |
| 1211 #ifdef _LP64 | |
| 1212 __ tst(Otos_l); | |
| 1213 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1214 __ sdivx(O2, Otos_l, Otos_l2); | |
| 1215 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
| 1216 __ sub (O2, Otos_l2, Otos_l); | |
| 1217 #else | |
| 1218 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1219 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1220 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 1221 #endif | |
| 1222 } | |
| 1223 | |
| 1224 | |
| 1225 void TemplateTable::lshl() { | |
| 1226 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
| 1227 | |
| 1228 __ pop_l(O2); // shift value in O2, O3 | |
| 1229 #ifdef _LP64 | |
| 1230 __ sllx(O2, Otos_i, Otos_l); | |
| 1231 #else | |
| 1232 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1233 #endif | |
| 1234 } | |
| 1235 | |
| 1236 | |
| 1237 void TemplateTable::lshr() { | |
| 1238 transition(itos, ltos); // %%%% see lshl comment | |
| 1239 | |
| 1240 __ pop_l(O2); // shift value in O2, O3 | |
| 1241 #ifdef _LP64 | |
| 1242 __ srax(O2, Otos_i, Otos_l); | |
| 1243 #else | |
| 1244 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1245 #endif | |
| 1246 } | |
| 1247 | |
| 1248 | |
| 1249 | |
| 1250 void TemplateTable::lushr() { | |
| 1251 transition(itos, ltos); // %%%% see lshl comment | |
| 1252 | |
| 1253 __ pop_l(O2); // shift value in O2, O3 | |
| 1254 #ifdef _LP64 | |
| 1255 __ srlx(O2, Otos_i, Otos_l); | |
| 1256 #else | |
| 1257 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1258 #endif | |
| 1259 } | |
| 1260 | |
| 1261 | |
| 1262 void TemplateTable::fop2(Operation op) { | |
| 1263 transition(ftos, ftos); | |
| 1264 switch (op) { | |
| 1265 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1266 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1267 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1268 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1269 case rem: | |
| 1270 assert(Ftos_f == F0, "just checking"); | |
| 1271 #ifdef _LP64 | |
| 1272 // LP64 calling conventions use F1, F3 for passing 2 floats | |
| 1273 __ pop_f(F1); | |
| 1274 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
| 1275 #else | |
| 1276 __ pop_i(O0); | |
| 1277 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
| 1278 __ ld( __ d_tmp, O1 ); | |
| 1279 #endif | |
| 1280 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
| 1281 assert( Ftos_f == F0, "fix this code" ); | |
| 1282 break; | |
| 1283 | |
| 1284 default: ShouldNotReachHere(); | |
| 1285 } | |
| 1286 } | |
| 1287 | |
| 1288 | |
| 1289 void TemplateTable::dop2(Operation op) { | |
| 1290 transition(dtos, dtos); | |
| 1291 switch (op) { | |
| 1292 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1293 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1294 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1295 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1296 case rem: | |
| 1297 #ifdef _LP64 | |
| 1298 // Pass arguments in D0, D2 | |
| 1299 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
| 1300 __ pop_d( F0 ); | |
| 1301 #else | |
| 1302 // Pass arguments in O0O1, O2O3 | |
| 1303 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1304 __ ldd( __ d_tmp, O2 ); | |
| 1305 __ pop_d(Ftos_f); | |
| 1306 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1307 __ ldd( __ d_tmp, O0 ); | |
| 1308 #endif | |
| 1309 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
| 1310 assert( Ftos_d == F0, "fix this code" ); | |
| 1311 break; | |
| 1312 | |
| 1313 default: ShouldNotReachHere(); | |
| 1314 } | |
| 1315 } | |
| 1316 | |
| 1317 | |
| 1318 void TemplateTable::ineg() { | |
| 1319 transition(itos, itos); | |
| 1320 __ neg(Otos_i); | |
| 1321 } | |
| 1322 | |
| 1323 | |
| 1324 void TemplateTable::lneg() { | |
| 1325 transition(ltos, ltos); | |
| 1326 #ifdef _LP64 | |
| 1327 __ sub(G0, Otos_l, Otos_l); | |
| 1328 #else | |
| 1329 __ lneg(Otos_l1, Otos_l2); | |
| 1330 #endif | |
| 1331 } | |
| 1332 | |
| 1333 | |
| 1334 void TemplateTable::fneg() { | |
| 1335 transition(ftos, ftos); | |
| 1336 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
| 1337 } | |
| 1338 | |
| 1339 | |
| 1340 void TemplateTable::dneg() { | |
| 1341 transition(dtos, dtos); | |
| 1342 // v8 has fnegd if source and dest are the same | |
| 1343 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
| 1344 } | |
| 1345 | |
| 1346 | |
| 1347 void TemplateTable::iinc() { | |
| 1348 transition(vtos, vtos); | |
| 1349 locals_index(G3_scratch); | |
| 1350 __ ldsb(Lbcp, 2, O2); // load constant | |
| 1351 __ access_local_int(G3_scratch, Otos_i); | |
| 1352 __ add(Otos_i, O2, Otos_i); | |
| 1506 | 1353 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1354 } |
| 1355 | |
| 1356 | |
| 1357 void TemplateTable::wide_iinc() { | |
| 1358 transition(vtos, vtos); | |
| 1359 locals_index_wide(G3_scratch); | |
| 1360 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
| 1361 __ access_local_int(G3_scratch, Otos_i); | |
| 1362 __ add(Otos_i, O3, Otos_i); | |
| 1506 | 1363 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1364 } |
| 1365 | |
| 1366 | |
| 1367 void TemplateTable::convert() { | |
| 1368 // %%%%% Factor this first part accross platforms | |
| 1369 #ifdef ASSERT | |
| 1370 TosState tos_in = ilgl; | |
| 1371 TosState tos_out = ilgl; | |
| 1372 switch (bytecode()) { | |
| 1373 case Bytecodes::_i2l: // fall through | |
| 1374 case Bytecodes::_i2f: // fall through | |
| 1375 case Bytecodes::_i2d: // fall through | |
| 1376 case Bytecodes::_i2b: // fall through | |
| 1377 case Bytecodes::_i2c: // fall through | |
| 1378 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1379 case Bytecodes::_l2i: // fall through | |
| 1380 case Bytecodes::_l2f: // fall through | |
| 1381 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1382 case Bytecodes::_f2i: // fall through | |
| 1383 case Bytecodes::_f2l: // fall through | |
| 1384 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1385 case Bytecodes::_d2i: // fall through | |
| 1386 case Bytecodes::_d2l: // fall through | |
| 1387 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1388 default : ShouldNotReachHere(); | |
| 1389 } | |
| 1390 switch (bytecode()) { | |
| 1391 case Bytecodes::_l2i: // fall through | |
| 1392 case Bytecodes::_f2i: // fall through | |
| 1393 case Bytecodes::_d2i: // fall through | |
| 1394 case Bytecodes::_i2b: // fall through | |
| 1395 case Bytecodes::_i2c: // fall through | |
| 1396 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1397 case Bytecodes::_i2l: // fall through | |
| 1398 case Bytecodes::_f2l: // fall through | |
| 1399 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1400 case Bytecodes::_i2f: // fall through | |
| 1401 case Bytecodes::_l2f: // fall through | |
| 1402 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1403 case Bytecodes::_i2d: // fall through | |
| 1404 case Bytecodes::_l2d: // fall through | |
| 1405 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1406 default : ShouldNotReachHere(); | |
| 1407 } | |
| 1408 transition(tos_in, tos_out); | |
| 1409 #endif | |
| 1410 | |
| 1411 | |
| 1412 // Conversion | |
| 1413 Label done; | |
| 1414 switch (bytecode()) { | |
| 1415 case Bytecodes::_i2l: | |
| 1416 #ifdef _LP64 | |
| 1417 // Sign extend the 32 bits | |
| 1418 __ sra ( Otos_i, 0, Otos_l ); | |
| 1419 #else | |
| 1420 __ addcc(Otos_i, 0, Otos_l2); | |
| 1421 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
| 1422 __ delayed()->clr(Otos_l1); | |
| 1423 __ set(~0, Otos_l1); | |
| 1424 #endif | |
| 1425 break; | |
| 1426 | |
| 1427 case Bytecodes::_i2f: | |
| 1428 __ st(Otos_i, __ d_tmp ); | |
| 1429 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1430 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
| 1431 break; | |
| 1432 | |
| 1433 case Bytecodes::_i2d: | |
| 1434 __ st(Otos_i, __ d_tmp); | |
| 1435 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1436 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
| 1437 break; | |
| 1438 | |
| 1439 case Bytecodes::_i2b: | |
| 1440 __ sll(Otos_i, 24, Otos_i); | |
| 1441 __ sra(Otos_i, 24, Otos_i); | |
| 1442 break; | |
| 1443 | |
| 1444 case Bytecodes::_i2c: | |
| 1445 __ sll(Otos_i, 16, Otos_i); | |
| 1446 __ srl(Otos_i, 16, Otos_i); | |
| 1447 break; | |
| 1448 | |
| 1449 case Bytecodes::_i2s: | |
| 1450 __ sll(Otos_i, 16, Otos_i); | |
| 1451 __ sra(Otos_i, 16, Otos_i); | |
| 1452 break; | |
| 1453 | |
| 1454 case Bytecodes::_l2i: | |
| 1455 #ifndef _LP64 | |
| 1456 __ mov(Otos_l2, Otos_i); | |
| 1457 #else | |
| 1458 // Sign-extend into the high 32 bits | |
| 1459 __ sra(Otos_l, 0, Otos_i); | |
| 1460 #endif | |
| 1461 break; | |
| 1462 | |
| 1463 case Bytecodes::_l2f: | |
| 1464 case Bytecodes::_l2d: | |
| 1465 __ st_long(Otos_l, __ d_tmp); | |
| 1466 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
| 1467 | |
| 1468 if (VM_Version::v9_instructions_work()) { | |
| 1469 if (bytecode() == Bytecodes::_l2f) { | |
| 1470 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1471 } else { | |
| 1472 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
| 1473 } | |
| 1474 } else { | |
| 1475 __ call_VM_leaf( | |
| 1476 Lscratch, | |
| 1477 bytecode() == Bytecodes::_l2f | |
| 1478 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
| 1479 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
| 1480 ); | |
| 1481 } | |
| 1482 break; | |
| 1483 | |
| 1484 case Bytecodes::_f2i: { | |
| 1485 Label isNaN; | |
| 1486 // result must be 0 if value is NaN; test by comparing value to itself | |
| 1487 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
| 1488 // According to the v8 manual, you have to have a non-fp instruction | |
| 1489 // between fcmp and fb. | |
| 1490 if (!VM_Version::v9_instructions_work()) { | |
| 1491 __ nop(); | |
| 1492 } | |
| 1493 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
| 1494 __ delayed()->clr(Otos_i); // NaN | |
| 1495 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
| 1496 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
| 1497 __ ld(__ d_tmp, Otos_i); | |
| 1498 __ bind(isNaN); | |
| 1499 } | |
| 1500 break; | |
| 1501 | |
| 1502 case Bytecodes::_f2l: | |
| 1503 // must uncache tos | |
| 1504 __ push_f(); | |
| 1505 #ifdef _LP64 | |
| 1506 __ pop_f(F1); | |
| 1507 #else | |
| 1508 __ pop_i(O0); | |
| 1509 #endif | |
| 1510 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
| 1511 break; | |
| 1512 | |
| 1513 case Bytecodes::_f2d: | |
| 1514 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
| 1515 break; | |
| 1516 | |
| 1517 case Bytecodes::_d2i: | |
| 1518 case Bytecodes::_d2l: | |
| 1519 // must uncache tos | |
| 1520 __ push_d(); | |
| 1521 #ifdef _LP64 | |
| 1522 // LP64 calling conventions pass first double arg in D0 | |
| 1523 __ pop_d( Ftos_d ); | |
| 1524 #else | |
| 1525 __ pop_i( O0 ); | |
| 1526 __ pop_i( O1 ); | |
| 1527 #endif | |
| 1528 __ call_VM_leaf(Lscratch, | |
| 1529 bytecode() == Bytecodes::_d2i | |
| 1530 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
| 1531 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
| 1532 break; | |
| 1533 | |
| 1534 case Bytecodes::_d2f: | |
| 1535 if (VM_Version::v9_instructions_work()) { | |
| 1536 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1537 } | |
| 1538 else { | |
| 1539 // must uncache tos | |
| 1540 __ push_d(); | |
| 1541 __ pop_i(O0); | |
| 1542 __ pop_i(O1); | |
| 1543 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
| 1544 } | |
| 1545 break; | |
| 1546 | |
| 1547 default: ShouldNotReachHere(); | |
| 1548 } | |
| 1549 __ bind(done); | |
| 1550 } | |
| 1551 | |
| 1552 | |
| 1553 void TemplateTable::lcmp() { | |
| 1554 transition(ltos, itos); | |
| 1555 | |
| 1556 #ifdef _LP64 | |
| 1557 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
| 1558 __ lcmp( O1, Otos_l, Otos_i ); | |
| 1559 #else | |
| 1560 __ pop_l(O2); // cmp O2,3 to O0,1 | |
| 1561 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
| 1562 #endif | |
| 1563 } | |
| 1564 | |
| 1565 | |
| 1566 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1567 | |
| 1568 if (is_float) __ pop_f(F2); | |
| 1569 else __ pop_d(F2); | |
| 1570 | |
| 1571 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
| 1572 | |
| 1573 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
| 1574 } | |
| 1575 | |
| 1576 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1577 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
| 1578 __ verify_thread(); | |
| 1579 | |
| 1580 const Register O2_bumped_count = O2; | |
| 1581 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
| 1582 | |
| 1583 // get (wide) offset to O1_disp | |
| 1584 const Register O1_disp = O1; | |
| 1585 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
| 1586 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
| 1587 | |
| 1588 // Handle all the JSR stuff here, then exit. | |
| 1589 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1590 // non-JSR normal-branch stuff occurring below. |
| 0 | 1591 if( is_jsr ) { |
| 1592 // compute return address as bci in Otos_i | |
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1593 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1594 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1595 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
| 0 | 1596 |
| 1597 // Bump Lbcp to target of JSR | |
| 1598 __ add(Lbcp, O1_disp, Lbcp); | |
| 1599 // Push returnAddress for "ret" on stack | |
| 1506 | 1600 __ push_ptr(Otos_i); |
| 0 | 1601 // And away we go! |
| 1602 __ dispatch_next(vtos); | |
| 1603 return; | |
| 1604 } | |
| 1605 | |
| 1606 // Normal (non-jsr) branch handling | |
| 1607 | |
| 1608 // Save the current Lbcp | |
| 1609 const Register O0_cur_bcp = O0; | |
| 1610 __ mov( Lbcp, O0_cur_bcp ); | |
| 1611 | |
| 1783 | 1612 |
| 0 | 1613 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
| 1614 if ( increment_invocation_counter_for_backward_branches ) { | |
| 1615 Label Lforward; | |
| 1616 // check branch direction | |
| 1617 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
| 1618 // Bump bytecode pointer by displacement (take the branch) | |
| 1619 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
| 1620 | |
| 1783 | 1621 if (TieredCompilation) { |
| 1622 Label Lno_mdo, Loverflow; | |
| 1623 int increment = InvocationCounter::count_increment; | |
| 1624 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1625 if (ProfileInterpreter) { | |
| 1626 // If no method data exists, go to profile_continue. | |
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1627 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
| 3839 | 1628 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
| 1783 | 1629 |
| 1630 // Increment backedge counter in the MDO | |
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1631 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1632 in_bytes(InvocationCounter::counter_offset())); |
| 1633 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1634 Assembler::notZero, &Lforward); | |
| 3839 | 1635 __ ba_short(Loverflow); |
| 0 | 1636 } |
| 1783 | 1637 |
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1638 // If there's no MDO, increment counter in Method* |
| 1783 | 1639 __ bind(Lno_mdo); |
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1640 Address backedge_counter(Lmethod, in_bytes(Method::backedge_counter_offset()) + |
| 1783 | 1641 in_bytes(InvocationCounter::counter_offset())); |
| 1642 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1643 Assembler::notZero, &Lforward); | |
| 1644 __ bind(Loverflow); | |
| 1645 | |
| 1646 // notify point for loop, pass branch bytecode | |
| 1647 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
| 1648 | |
| 1649 // Was an OSR adapter generated? | |
| 1650 // O0 = osr nmethod | |
| 3839 | 1651 __ br_null_short(O0, Assembler::pn, Lforward); |
| 1783 | 1652 |
| 1653 // Has the nmethod been invalidated already? | |
| 1654 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
| 3839 | 1655 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
| 1783 | 1656 |
| 1657 // migrate the interpreter frame off of the stack | |
| 1658 | |
| 1659 __ mov(G2_thread, L7); | |
| 1660 // save nmethod | |
| 1661 __ mov(O0, L6); | |
| 1662 __ set_last_Java_frame(SP, noreg); | |
| 1663 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
| 1664 __ reset_last_Java_frame(); | |
| 1665 __ mov(L7, G2_thread); | |
| 1666 | |
| 1667 // move OSR nmethod to I1 | |
| 1668 __ mov(L6, I1); | |
| 1669 | |
| 1670 // OSR buffer to I0 | |
| 1671 __ mov(O0, I0); | |
| 1672 | |
| 1673 // remove the interpreter frame | |
| 1674 __ restore(I5_savedSP, 0, SP); | |
| 1675 | |
| 1676 // Jump to the osr code. | |
| 1677 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
| 1678 __ jmp(O2, G0); | |
| 1679 __ delayed()->nop(); | |
| 1680 | |
| 0 | 1681 } else { |
| 1783 | 1682 // Update Backedge branch separately from invocations |
| 1683 const Register G4_invoke_ctr = G4; | |
| 1684 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
| 1685 if (ProfileInterpreter) { | |
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1686 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
| 1783 | 1687 if (UseOnStackReplacement) { |
| 1688 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
| 1689 } | |
| 1690 } else { | |
| 1691 if (UseOnStackReplacement) { | |
| 1692 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
| 1693 } | |
| 0 | 1694 } |
| 1695 } | |
| 1696 | |
| 1697 __ bind(Lforward); | |
| 1698 } else | |
| 1699 // Bump bytecode pointer by displacement (take the branch) | |
| 1700 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
| 1701 | |
| 1702 // continue with bytecode @ target | |
| 1703 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
| 1704 // %%%%% and changing dispatch_next to dispatch_only | |
| 1705 __ dispatch_next(vtos); | |
| 1706 } | |
| 1707 | |
| 1708 | |
| 1709 // Note Condition in argument is TemplateTable::Condition | |
| 1710 // arg scope is within class scope | |
| 1711 | |
| 1712 void TemplateTable::if_0cmp(Condition cc) { | |
| 1713 // no pointers, integer only! | |
| 1714 transition(itos, vtos); | |
| 1715 // assume branch is more often taken than not (loops use backward branches) | |
| 1716 __ cmp( Otos_i, 0); | |
| 1717 __ if_cmp(ccNot(cc), false); | |
| 1718 } | |
| 1719 | |
| 1720 | |
| 1721 void TemplateTable::if_icmp(Condition cc) { | |
| 1722 transition(itos, vtos); | |
| 1723 __ pop_i(O1); | |
| 1724 __ cmp(O1, Otos_i); | |
| 1725 __ if_cmp(ccNot(cc), false); | |
| 1726 } | |
| 1727 | |
| 1728 | |
| 1729 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1730 transition(atos, vtos); | |
| 1731 __ tst(Otos_i); | |
| 1732 __ if_cmp(ccNot(cc), true); | |
| 1733 } | |
| 1734 | |
| 1735 | |
| 1736 void TemplateTable::if_acmp(Condition cc) { | |
| 1737 transition(atos, vtos); | |
| 1738 __ pop_ptr(O1); | |
| 1739 __ verify_oop(O1); | |
| 1740 __ verify_oop(Otos_i); | |
| 1741 __ cmp(O1, Otos_i); | |
| 1742 __ if_cmp(ccNot(cc), true); | |
| 1743 } | |
| 1744 | |
| 1745 | |
| 1746 | |
| 1747 void TemplateTable::ret() { | |
| 1748 transition(vtos, vtos); | |
| 1749 locals_index(G3_scratch); | |
| 1750 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1751 // Otos_i contains the bci, compute the bcp from that | |
| 1752 | |
| 1753 #ifdef _LP64 | |
| 1754 #ifdef ASSERT | |
| 1755 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
| 1756 // the result. The return address (really a BCI) was stored with an | |
| 1757 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
| 1758 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
| 1759 // loaded value. | |
| 1760 { Label zzz ; | |
| 1761 __ set (65536, G3_scratch) ; | |
| 1762 __ cmp (Otos_i, G3_scratch) ; | |
| 1763 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
| 1764 __ delayed()->nop(); | |
| 1765 __ stop("BCI is in the wrong register half?"); | |
| 1766 __ bind (zzz) ; | |
| 1767 } | |
| 1768 #endif | |
| 1769 #endif | |
| 1770 | |
| 1771 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1772 | |
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1773 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1774 __ add(G3_scratch, Otos_i, G3_scratch); |
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1775 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1776 __ dispatch_next(vtos); |
| 1777 } | |
| 1778 | |
| 1779 | |
| 1780 void TemplateTable::wide_ret() { | |
| 1781 transition(vtos, vtos); | |
| 1782 locals_index_wide(G3_scratch); | |
| 1783 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1784 // Otos_i contains the bci, compute the bcp from that | |
| 1785 | |
| 1786 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1787 | |
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1788 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1789 __ add(G3_scratch, Otos_i, G3_scratch); |
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1790 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1791 __ dispatch_next(vtos); |
| 1792 } | |
| 1793 | |
| 1794 | |
| 1795 void TemplateTable::tableswitch() { | |
| 1796 transition(itos, vtos); | |
| 1797 Label default_case, continue_execution; | |
| 1798 | |
| 1799 // align bcp | |
| 1800 __ add(Lbcp, BytesPerInt, O1); | |
| 1801 __ and3(O1, -BytesPerInt, O1); | |
| 1802 // load lo, hi | |
| 1803 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
| 1804 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
| 1805 #ifdef _LP64 | |
| 1806 // Sign extend the 32 bits | |
| 1807 __ sra ( Otos_i, 0, Otos_i ); | |
| 1808 #endif /* _LP64 */ | |
| 1809 | |
| 1810 // check against lo & hi | |
| 1811 __ cmp( Otos_i, O2); | |
| 1812 __ br( Assembler::less, false, Assembler::pn, default_case); | |
| 1813 __ delayed()->cmp( Otos_i, O3 ); | |
| 1814 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
| 1815 // lookup dispatch offset | |
| 1816 __ delayed()->sub(Otos_i, O2, O2); | |
| 1817 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
| 1818 __ sll(O2, LogBytesPerInt, O2); | |
| 1819 __ add(O2, 3 * BytesPerInt, O2); | |
| 3839 | 1820 __ ba(continue_execution); |
| 0 | 1821 __ delayed()->ld(O1, O2, O2); |
| 1822 // handle default | |
| 1823 __ bind(default_case); | |
| 1824 __ profile_switch_default(O3); | |
| 1825 __ ld(O1, 0, O2); // get default offset | |
| 1826 // continue execution | |
| 1827 __ bind(continue_execution); | |
| 1828 __ add(Lbcp, O2, Lbcp); | |
| 1829 __ dispatch_next(vtos); | |
| 1830 } | |
| 1831 | |
| 1832 | |
| 1833 void TemplateTable::lookupswitch() { | |
| 1834 transition(itos, itos); | |
| 1835 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1836 } | |
| 1837 | |
| 1838 void TemplateTable::fast_linearswitch() { | |
| 1839 transition(itos, vtos); | |
| 1840 Label loop_entry, loop, found, continue_execution; | |
| 1841 // align bcp | |
| 1842 __ add(Lbcp, BytesPerInt, O1); | |
| 1843 __ and3(O1, -BytesPerInt, O1); | |
| 1844 // set counter | |
| 1845 __ ld(O1, BytesPerInt, O2); | |
| 1846 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
| 1847 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
| 3839 | 1848 __ ba(loop_entry); |
| 0 | 1849 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
| 1850 | |
| 1851 // table search | |
| 1852 __ bind(loop); | |
| 1853 __ cmp(O4, Otos_i); | |
| 1854 __ br(Assembler::equal, true, Assembler::pn, found); | |
| 1855 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
| 1856 __ inc(O3, 2 * BytesPerInt); | |
| 1857 | |
| 1858 __ bind(loop_entry); | |
| 1859 __ cmp(O2, O3); | |
| 1860 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
| 1861 __ delayed()->ld(O3, 0, O4); | |
| 1862 | |
| 1863 // default case | |
| 1864 __ ld(O1, 0, O4); // get default offset | |
| 1865 if (ProfileInterpreter) { | |
| 1866 __ profile_switch_default(O3); | |
| 3839 | 1867 __ ba_short(continue_execution); |
| 0 | 1868 } |
| 1869 | |
| 1870 // entry found -> get offset | |
| 1871 __ bind(found); | |
| 1872 if (ProfileInterpreter) { | |
| 1873 __ sub(O3, O1, O3); | |
| 1874 __ sub(O3, 2*BytesPerInt, O3); | |
| 1875 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
| 1876 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
| 1877 | |
| 1878 __ bind(continue_execution); | |
| 1879 } | |
| 1880 __ add(Lbcp, O4, Lbcp); | |
| 1881 __ dispatch_next(vtos); | |
| 1882 } | |
| 1883 | |
| 1884 | |
| 1885 void TemplateTable::fast_binaryswitch() { | |
| 1886 transition(itos, vtos); | |
| 1887 // Implementation using the following core algorithm: (copied from Intel) | |
| 1888 // | |
| 1889 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1890 // // Binary search according to "Methodik des Programmierens" by | |
| 1891 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1892 // int i = 0; | |
| 1893 // int j = n; | |
| 1894 // while (i+1 < j) { | |
| 1895 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1896 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1897 // // where a stands for the array and assuming that the (inexisting) | |
| 1898 // // element a[n] is infinitely big. | |
| 1899 // int h = (i + j) >> 1; | |
| 1900 // // i < h < j | |
| 1901 // if (key < array[h].fast_match()) { | |
| 1902 // j = h; | |
| 1903 // } else { | |
| 1904 // i = h; | |
| 1905 // } | |
| 1906 // } | |
| 1907 // // R: a[i] <= key < a[i+1] or Q | |
| 1908 // // (i.e., if key is within array, i is the correct index) | |
| 1909 // return i; | |
| 1910 // } | |
| 1911 | |
| 1912 // register allocation | |
| 1913 assert(Otos_i == O0, "alias checking"); | |
| 1914 const Register Rkey = Otos_i; // already set (tosca) | |
| 1915 const Register Rarray = O1; | |
| 1916 const Register Ri = O2; | |
| 1917 const Register Rj = O3; | |
| 1918 const Register Rh = O4; | |
| 1919 const Register Rscratch = O5; | |
| 1920 | |
| 1921 const int log_entry_size = 3; | |
| 1922 const int entry_size = 1 << log_entry_size; | |
| 1923 | |
| 1924 Label found; | |
| 1925 // Find Array start | |
| 1926 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
| 1927 __ and3(Rarray, -BytesPerInt, Rarray); | |
| 1928 // initialize i & j (in delay slot) | |
| 1929 __ clr( Ri ); | |
| 1930 | |
| 1931 // and start | |
| 1932 Label entry; | |
| 3839 | 1933 __ ba(entry); |
| 0 | 1934 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
| 1935 // (Rj is already in the native byte-ordering.) | |
| 1936 | |
| 1937 // binary search loop | |
| 1938 { Label loop; | |
| 1939 __ bind( loop ); | |
| 1940 // int h = (i + j) >> 1; | |
| 1941 __ sra( Rh, 1, Rh ); | |
| 1942 // if (key < array[h].fast_match()) { | |
| 1943 // j = h; | |
| 1944 // } else { | |
| 1945 // i = h; | |
| 1946 // } | |
| 1947 __ sll( Rh, log_entry_size, Rscratch ); | |
| 1948 __ ld( Rarray, Rscratch, Rscratch ); | |
| 1949 // (Rscratch is already in the native byte-ordering.) | |
| 1950 __ cmp( Rkey, Rscratch ); | |
| 1951 if ( VM_Version::v9_instructions_work() ) { | |
| 1952 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
| 1953 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
| 1954 } | |
| 1955 else { | |
| 1956 Label end_of_if; | |
| 1957 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
| 1958 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
| 1959 __ mov( Rh, Ri ); // else i = h | |
| 1960 __ bind(end_of_if); // } | |
| 1961 } | |
| 1962 | |
| 1963 // while (i+1 < j) | |
| 1964 __ bind( entry ); | |
| 1965 __ add( Ri, 1, Rscratch ); | |
| 1966 __ cmp(Rscratch, Rj); | |
| 1967 __ br( Assembler::less, true, Assembler::pt, loop ); | |
| 1968 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
| 1969 } | |
| 1970 | |
| 1971 // end of binary search, result index is i (must check again!) | |
| 1972 Label default_case; | |
| 1973 Label continue_execution; | |
| 1974 if (ProfileInterpreter) { | |
| 1975 __ mov( Ri, Rh ); // Save index in i for profiling | |
| 1976 } | |
| 1977 __ sll( Ri, log_entry_size, Ri ); | |
| 1978 __ ld( Rarray, Ri, Rscratch ); | |
| 1979 // (Rscratch is already in the native byte-ordering.) | |
| 1980 __ cmp( Rkey, Rscratch ); | |
| 1981 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
| 1982 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
| 1983 | |
| 1984 // entry found -> j = offset | |
| 1985 __ inc( Ri, BytesPerInt ); | |
| 1986 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
| 1987 __ ld( Rarray, Ri, Rj ); | |
| 1988 // (Rj is already in the native byte-ordering.) | |
| 1989 | |
| 1990 if (ProfileInterpreter) { | |
| 3839 | 1991 __ ba_short(continue_execution); |
| 0 | 1992 } |
| 1993 | |
| 1994 __ bind(default_case); // fall through (if not profiling) | |
| 1995 __ profile_switch_default(Ri); | |
| 1996 | |
| 1997 __ bind(continue_execution); | |
| 1998 __ add( Lbcp, Rj, Lbcp ); | |
| 1999 __ dispatch_next( vtos ); | |
| 2000 } | |
| 2001 | |
| 2002 | |
| 2003 void TemplateTable::_return(TosState state) { | |
| 2004 transition(state, state); | |
| 2005 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
| 2006 | |
| 2007 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2008 assert(state == vtos, "only valid state"); | |
| 2009 __ mov(G0, G3_scratch); | |
| 2010 __ access_local_ptr(G3_scratch, Otos_i); | |
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2011 __ load_klass(Otos_i, O2); |
| 0 | 2012 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2013 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
| 0 | 2014 __ andcc(G3, O2, G0); |
| 2015 Label skip_register_finalizer; | |
| 2016 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
| 2017 __ delayed()->nop(); | |
| 2018 | |
| 2019 // Call out to do finalizer registration | |
| 2020 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
| 2021 | |
| 2022 __ bind(skip_register_finalizer); | |
| 2023 } | |
| 2024 | |
| 2025 __ remove_activation(state, /* throw_monitor_exception */ true); | |
| 2026 | |
| 2027 // The caller's SP was adjusted upon method entry to accomodate | |
| 2028 // the callee's non-argument locals. Undo that adjustment. | |
| 2029 __ ret(); // return to caller | |
| 2030 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 2031 } | |
| 2032 | |
| 2033 | |
| 2034 // ---------------------------------------------------------------------------- | |
| 2035 // Volatile variables demand their effects be made known to all CPU's in | |
| 2036 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 2037 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 2038 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 2039 // reorder volatile references, the hardware also must not reorder them). | |
| 2040 // | |
| 2041 // According to the new Java Memory Model (JMM): | |
| 2042 // (1) All volatiles are serialized wrt to each other. | |
| 2043 // ALSO reads & writes act as aquire & release, so: | |
| 2044 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 2045 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 2046 // that happen before the volatile read to float down below it. | |
| 2047 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 2048 // that happen BEFORE the write float down to after the write. It's OK for | |
| 2049 // non-volatile memory refs that happen after the volatile write to float up | |
| 2050 // before it. | |
| 2051 // | |
| 2052 // We only put in barriers around volatile refs (they are expensive), not | |
| 2053 // _between_ memory refs (that would require us to track the flavor of the | |
| 2054 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 2055 // before volatile stores and after volatile loads. These nearly cover | |
| 2056 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 2057 // case is placed after volatile-stores although it could just as well go | |
| 2058 // before volatile-loads. | |
| 2059 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
| 2060 // Helper function to insert a is-volatile test and memory barrier | |
| 2061 // All current sparc implementations run in TSO, needing only StoreLoad | |
| 2062 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
| 2063 __ membar( order_constraint ); | |
| 2064 } | |
| 2065 | |
| 2066 // ---------------------------------------------------------------------------- | |
| 1565 | 2067 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2068 Register Rcache, | |
| 2069 Register index, | |
| 2070 size_t index_size) { | |
| 0 | 2071 // Depends on cpCacheOop layout! |
| 2072 Label resolved; | |
| 2073 | |
| 1565 | 2074 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2075 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2076 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2077 __ br(Assembler::equal, false, Assembler::pt, resolved); |
| 1503 | 2078 __ delayed()->set((int)bytecode(), O1); |
| 0 | 2079 |
| 2080 address entry; | |
| 2081 switch (bytecode()) { | |
| 2082 case Bytecodes::_getstatic : // fall through | |
| 2083 case Bytecodes::_putstatic : // fall through | |
| 2084 case Bytecodes::_getfield : // fall through | |
| 2085 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
| 2086 case Bytecodes::_invokevirtual : // fall through | |
| 2087 case Bytecodes::_invokespecial : // fall through | |
| 2088 case Bytecodes::_invokestatic : // fall through | |
| 2089 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2090 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
| 1503 | 2091 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2092 default: |
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2093 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2094 break; |
| 0 | 2095 } |
| 2096 // first time invocation - must resolve first | |
| 2097 __ call_VM(noreg, entry, O1); | |
| 2098 // Update registers with resolved info | |
| 1565 | 2099 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2100 __ bind(resolved); |
| 2101 } | |
| 2102 | |
| 2103 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2104 Register method, |
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2105 Register itable_index, |
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2106 Register flags, |
| 0 | 2107 bool is_invokevirtual, |
| 1565 | 2108 bool is_invokevfinal, |
| 2109 bool is_invokedynamic) { | |
| 0 | 2110 // Uses both G3_scratch and G4_scratch |
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2111 Register cache = G3_scratch; |
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2112 Register index = G4_scratch; |
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2113 assert_different_registers(cache, method, itable_index); |
| 0 | 2114 |
| 2115 // determine constant pool cache field offsets | |
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2116 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2117 const int method_offset = in_bytes( |
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2118 ConstantPoolCache::base_offset() + |
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2119 ((byte_no == f2_byte) |
| 0 | 2120 ? ConstantPoolCacheEntry::f2_offset() |
| 2121 : ConstantPoolCacheEntry::f1_offset() | |
| 2122 ) | |
| 2123 ); | |
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2124 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2125 ConstantPoolCacheEntry::flags_offset()); |
| 2126 // access constant pool cache fields | |
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2127 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2128 ConstantPoolCacheEntry::f2_offset()); |
| 2129 | |
| 2130 if (is_invokevfinal) { | |
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2131 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2132 __ ld_ptr(Address(cache, method_offset), method); |
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2133 } else { |
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2134 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2135 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2136 __ ld_ptr(Address(cache, method_offset), method); |
| 0 | 2137 } |
| 2138 | |
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2139 if (itable_index != noreg) { |
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2140 // pick up itable or appendix index from f2 also: |
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2141 __ ld_ptr(Address(cache, index_offset), itable_index); |
| 0 | 2142 } |
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2143 __ ld_ptr(Address(cache, flags_offset), flags); |
| 0 | 2144 } |
| 2145 | |
| 2146 // The Rcache register must be set before call | |
| 2147 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
| 2148 Register Rcache, | |
| 2149 Register index, | |
| 2150 Register Roffset, | |
| 2151 Register Rflags, | |
| 2152 bool is_static) { | |
| 2153 assert_different_registers(Rcache, Rflags, Roffset); | |
| 2154 | |
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2155 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2156 |
| 727 | 2157 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 2158 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
| 0 | 2159 if (is_static) { |
| 727 | 2160 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2161 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2162 __ ld_ptr( Robj, mirror_offset, Robj); |
| 0 | 2163 } |
| 2164 } | |
| 2165 | |
| 2166 // The registers Rcache and index expected to be set before call. | |
| 2167 // Correct values of the Rcache and index registers are preserved. | |
| 2168 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
| 2169 Register index, | |
| 2170 bool is_static, | |
| 2171 bool has_tos) { | |
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2172 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2173 |
| 2174 if (JvmtiExport::can_post_field_access()) { | |
| 2175 // Check to see if a field access watch has been set before we take | |
| 2176 // the time to call into the VM. | |
| 2177 Label Label1; | |
| 2178 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2179 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
| 0 | 2180 __ load_contents(get_field_access_count_addr, G1_scratch); |
| 3839 | 2181 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
| 0 | 2182 |
| 2183 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
| 2184 | |
| 2185 if (is_static) { | |
| 2186 __ clr(Otos_i); | |
| 2187 } else { | |
| 2188 if (has_tos) { | |
| 2189 // save object pointer before call_VM() clobbers it | |
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2190 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
| 0 | 2191 } else { |
| 2192 // Load top of stack (do not pop the value off the stack); | |
| 2193 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 2194 } | |
| 2195 __ verify_oop(Otos_i); | |
| 2196 } | |
| 2197 // Otos_i: object pointer or NULL if static | |
| 2198 // Rcache: cache entry pointer | |
| 2199 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2200 Otos_i, Rcache); | |
| 2201 if (!is_static && has_tos) { | |
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2202 __ pop_ptr(Otos_i); // restore object pointer |
| 0 | 2203 __ verify_oop(Otos_i); |
| 2204 } | |
| 2205 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2206 __ bind(Label1); | |
| 2207 } | |
| 2208 } | |
| 2209 | |
| 2210 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2211 transition(vtos, vtos); | |
| 2212 | |
| 2213 Register Rcache = G3_scratch; | |
| 2214 Register index = G4_scratch; | |
| 2215 Register Rclass = Rcache; | |
| 2216 Register Roffset= G4_scratch; | |
| 2217 Register Rflags = G1_scratch; | |
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2218 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2219 |
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2220 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2221 jvmti_post_field_access(Rcache, index, is_static, false); |
| 2222 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2223 | |
| 2224 if (!is_static) { | |
| 2225 pop_and_check_object(Rclass); | |
| 2226 } else { | |
| 2227 __ verify_oop(Rclass); | |
| 2228 } | |
| 2229 | |
| 2230 Label exit; | |
| 2231 | |
| 2232 Assembler::Membar_mask_bits membar_bits = | |
| 2233 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2234 | |
| 2235 if (__ membar_has_effect(membar_bits)) { | |
| 2236 // Get volatile flag | |
|
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2237 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2238 __ and3(Rflags, Lscratch, Lscratch); |
| 2239 } | |
| 2240 | |
| 2241 Label checkVolatile; | |
| 2242 | |
| 2243 // compute field type | |
| 2244 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2245 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2246 // Make sure we don't need to mask Rflags after the above shift |
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2247 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2248 |
| 2249 // Check atos before itos for getstatic, more likely (in Queens at least) | |
| 2250 __ cmp(Rflags, atos); | |
| 2251 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2252 __ delayed() ->cmp(Rflags, itos); | |
| 2253 | |
| 2254 // atos | |
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2255 __ load_heap_oop(Rclass, Roffset, Otos_i); |
| 0 | 2256 __ verify_oop(Otos_i); |
| 2257 __ push(atos); | |
| 2258 if (!is_static) { | |
| 2259 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
| 2260 } | |
| 3839 | 2261 __ ba(checkVolatile); |
| 0 | 2262 __ delayed()->tst(Lscratch); |
| 2263 | |
| 2264 __ bind(notObj); | |
| 2265 | |
| 2266 // cmp(Rflags, itos); | |
| 2267 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2268 __ delayed() ->cmp(Rflags, ltos); | |
| 2269 | |
| 2270 // itos | |
| 2271 __ ld(Rclass, Roffset, Otos_i); | |
| 2272 __ push(itos); | |
| 2273 if (!is_static) { | |
| 2274 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
| 2275 } | |
| 3839 | 2276 __ ba(checkVolatile); |
| 0 | 2277 __ delayed()->tst(Lscratch); |
| 2278 | |
| 2279 __ bind(notInt); | |
| 2280 | |
| 2281 // cmp(Rflags, ltos); | |
| 2282 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
| 2283 __ delayed() ->cmp(Rflags, btos); | |
| 2284 | |
| 2285 // ltos | |
| 2286 // load must be atomic | |
| 2287 __ ld_long(Rclass, Roffset, Otos_l); | |
| 2288 __ push(ltos); | |
| 2289 if (!is_static) { | |
| 2290 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
| 2291 } | |
| 3839 | 2292 __ ba(checkVolatile); |
| 0 | 2293 __ delayed()->tst(Lscratch); |
| 2294 | |
| 2295 __ bind(notLong); | |
| 2296 | |
| 2297 // cmp(Rflags, btos); | |
| 2298 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
| 2299 __ delayed() ->cmp(Rflags, ctos); | |
| 2300 | |
| 2301 // btos | |
| 2302 __ ldsb(Rclass, Roffset, Otos_i); | |
| 2303 __ push(itos); | |
| 2304 if (!is_static) { | |
| 2305 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
| 2306 } | |
| 3839 | 2307 __ ba(checkVolatile); |
| 0 | 2308 __ delayed()->tst(Lscratch); |
| 2309 | |
| 2310 __ bind(notByte); | |
| 2311 | |
| 2312 // cmp(Rflags, ctos); | |
| 2313 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
| 2314 __ delayed() ->cmp(Rflags, stos); | |
| 2315 | |
| 2316 // ctos | |
| 2317 __ lduh(Rclass, Roffset, Otos_i); | |
| 2318 __ push(itos); | |
| 2319 if (!is_static) { | |
| 2320 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
| 2321 } | |
| 3839 | 2322 __ ba(checkVolatile); |
| 0 | 2323 __ delayed()->tst(Lscratch); |
| 2324 | |
| 2325 __ bind(notChar); | |
| 2326 | |
| 2327 // cmp(Rflags, stos); | |
| 2328 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
| 2329 __ delayed() ->cmp(Rflags, ftos); | |
| 2330 | |
| 2331 // stos | |
| 2332 __ ldsh(Rclass, Roffset, Otos_i); | |
| 2333 __ push(itos); | |
| 2334 if (!is_static) { | |
| 2335 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
| 2336 } | |
| 3839 | 2337 __ ba(checkVolatile); |
| 0 | 2338 __ delayed()->tst(Lscratch); |
| 2339 | |
| 2340 __ bind(notShort); | |
| 2341 | |
| 2342 | |
| 2343 // cmp(Rflags, ftos); | |
| 2344 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
| 2345 __ delayed() ->tst(Lscratch); | |
| 2346 | |
| 2347 // ftos | |
| 2348 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
| 2349 __ push(ftos); | |
| 2350 if (!is_static) { | |
| 2351 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
| 2352 } | |
| 3839 | 2353 __ ba(checkVolatile); |
| 0 | 2354 __ delayed()->tst(Lscratch); |
| 2355 | |
| 2356 __ bind(notFloat); | |
| 2357 | |
| 2358 | |
| 2359 // dtos | |
| 2360 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
| 2361 __ push(dtos); | |
| 2362 if (!is_static) { | |
| 2363 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
| 2364 } | |
| 2365 | |
| 2366 __ bind(checkVolatile); | |
| 2367 if (__ membar_has_effect(membar_bits)) { | |
| 2368 // __ tst(Lscratch); executed in delay slot | |
| 2369 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2370 __ delayed()->nop(); | |
| 2371 volatile_barrier(membar_bits); | |
| 2372 } | |
| 2373 | |
| 2374 __ bind(exit); | |
| 2375 } | |
| 2376 | |
| 2377 | |
| 2378 void TemplateTable::getfield(int byte_no) { | |
| 2379 getfield_or_static(byte_no, false); | |
| 2380 } | |
| 2381 | |
| 2382 void TemplateTable::getstatic(int byte_no) { | |
| 2383 getfield_or_static(byte_no, true); | |
| 2384 } | |
| 2385 | |
| 2386 | |
| 2387 void TemplateTable::fast_accessfield(TosState state) { | |
| 2388 transition(atos, state); | |
| 2389 Register Rcache = G3_scratch; | |
| 2390 Register index = G4_scratch; | |
| 2391 Register Roffset = G4_scratch; | |
| 2392 Register Rflags = Rcache; | |
|
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2393 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2394 |
| 2395 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2396 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
| 2397 | |
| 727 | 2398 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2399 |
| 2400 __ null_check(Otos_i); | |
| 2401 __ verify_oop(Otos_i); | |
| 2402 | |
| 2403 Label exit; | |
| 2404 | |
| 2405 Assembler::Membar_mask_bits membar_bits = | |
| 2406 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2407 if (__ membar_has_effect(membar_bits)) { | |
| 2408 // Get volatile flag | |
| 727 | 2409 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2410 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2411 } |
| 2412 | |
| 2413 switch (bytecode()) { | |
| 2414 case Bytecodes::_fast_bgetfield: | |
| 2415 __ ldsb(Otos_i, Roffset, Otos_i); | |
| 2416 break; | |
| 2417 case Bytecodes::_fast_cgetfield: | |
| 2418 __ lduh(Otos_i, Roffset, Otos_i); | |
| 2419 break; | |
| 2420 case Bytecodes::_fast_sgetfield: | |
| 2421 __ ldsh(Otos_i, Roffset, Otos_i); | |
| 2422 break; | |
| 2423 case Bytecodes::_fast_igetfield: | |
| 2424 __ ld(Otos_i, Roffset, Otos_i); | |
| 2425 break; | |
| 2426 case Bytecodes::_fast_lgetfield: | |
| 2427 __ ld_long(Otos_i, Roffset, Otos_l); | |
| 2428 break; | |
| 2429 case Bytecodes::_fast_fgetfield: | |
| 2430 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
| 2431 break; | |
| 2432 case Bytecodes::_fast_dgetfield: | |
| 2433 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
| 2434 break; | |
| 2435 case Bytecodes::_fast_agetfield: | |
|
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2436 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
| 0 | 2437 break; |
| 2438 default: | |
| 2439 ShouldNotReachHere(); | |
| 2440 } | |
| 2441 | |
| 2442 if (__ membar_has_effect(membar_bits)) { | |
| 2443 __ btst(Lscratch, Rflags); | |
| 2444 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2445 __ delayed()->nop(); | |
| 2446 volatile_barrier(membar_bits); | |
| 2447 __ bind(exit); | |
| 2448 } | |
| 2449 | |
| 2450 if (state == atos) { | |
| 2451 __ verify_oop(Otos_i); // does not blow flags! | |
| 2452 } | |
| 2453 } | |
| 2454 | |
| 2455 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2456 if (JvmtiExport::can_post_field_modification()) { | |
| 2457 // Check to see if a field modification watch has been set before we take | |
| 2458 // the time to call into the VM. | |
| 2459 Label done; | |
| 727 | 2460 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2461 __ load_contents(get_field_modification_count_addr, G4_scratch); |
| 3839 | 2462 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
| 0 | 2463 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
| 2464 __ verify_oop(G4_scratch); | |
| 2465 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
| 2466 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
| 2467 // Save tos values before call_VM() clobbers them. Since we have | |
| 2468 // to do it for every data type, we use the saved values as the | |
| 2469 // jvalue object. | |
| 2470 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
| 2471 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
| 2472 case Bytecodes::_fast_bputfield: // fall through | |
| 2473 case Bytecodes::_fast_sputfield: // fall through | |
| 2474 case Bytecodes::_fast_cputfield: // fall through | |
| 2475 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
| 2476 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
| 2477 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
| 2478 // get words in right order for use as jvalue object | |
| 2479 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
| 2480 } | |
| 2481 // setup pointer to jvalue object | |
| 2482 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
| 2483 // G4_scratch: object pointer | |
| 2484 // G1_scratch: cache entry pointer | |
| 2485 // G3_scratch: jvalue object on the stack | |
| 2486 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
| 2487 switch (bytecode()) { // restore tos values | |
| 2488 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
| 2489 case Bytecodes::_fast_bputfield: // fall through | |
| 2490 case Bytecodes::_fast_sputfield: // fall through | |
| 2491 case Bytecodes::_fast_cputfield: // fall through | |
| 2492 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
| 2493 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
| 2494 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
| 2495 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
| 2496 } | |
| 2497 __ bind(done); | |
| 2498 } | |
| 2499 } | |
| 2500 | |
| 2501 // The registers Rcache and index expected to be set before call. | |
| 2502 // The function may destroy various registers, just not the Rcache and index registers. | |
| 2503 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2504 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2505 |
| 2506 if (JvmtiExport::can_post_field_modification()) { | |
| 2507 // Check to see if a field modification watch has been set before we take | |
| 2508 // the time to call into the VM. | |
| 2509 Label Label1; | |
| 2510 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2511 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2512 __ load_contents(get_field_modification_count_addr, G1_scratch); |
| 3839 | 2513 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
| 0 | 2514 |
| 2515 // The Rcache and index registers have been already set. | |
| 2516 // This allows to eliminate this call but the Rcache and index | |
| 2517 // registers must be correspondingly used after this line. | |
| 2518 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
| 2519 | |
| 2520 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
| 2521 if (is_static) { | |
| 2522 // Life is simple. Null out the object pointer. | |
| 2523 __ clr(G4_scratch); | |
| 2524 } else { | |
| 2525 Register Rflags = G1_scratch; | |
| 2526 // Life is harder. The stack holds the value on top, followed by the | |
| 2527 // object. We don't know the size of the value, though; it could be | |
| 2528 // one or two words depending on its type. As a result, we must find | |
| 2529 // the type to determine where the object is. | |
| 2530 | |
| 2531 Label two_word, valsizeknown; | |
| 727 | 2532 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2533 __ mov(Lesp, G4_scratch); |
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2534 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2535 // Make sure we don't need to mask Rflags after the above shift |
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2536 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2537 __ cmp(Rflags, ltos); |
| 2538 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2539 __ delayed()->cmp(Rflags, dtos); | |
| 2540 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2541 __ delayed()->nop(); | |
| 2542 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
| 3839 | 2543 __ ba_short(valsizeknown); |
| 0 | 2544 __ bind(two_word); |
| 2545 | |
| 2546 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
| 2547 | |
| 2548 __ bind(valsizeknown); | |
| 2549 // setup object pointer | |
| 2550 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
| 2551 __ verify_oop(G4_scratch); | |
| 2552 } | |
| 2553 // setup pointer to jvalue object | |
| 2554 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
| 2555 // G4_scratch: object pointer or NULL if static | |
| 2556 // G3_scratch: cache entry pointer | |
| 2557 // G1_scratch: jvalue object on the stack | |
| 2558 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2559 G4_scratch, G3_scratch, G1_scratch); | |
| 2560 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2561 __ bind(Label1); | |
| 2562 } | |
| 2563 } | |
| 2564 | |
| 2565 void TemplateTable::pop_and_check_object(Register r) { | |
| 2566 __ pop_ptr(r); | |
| 2567 __ null_check(r); // for field access must check obj. | |
| 2568 __ verify_oop(r); | |
| 2569 } | |
| 2570 | |
| 2571 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2572 transition(vtos, vtos); | |
| 2573 Register Rcache = G3_scratch; | |
| 2574 Register index = G4_scratch; | |
| 2575 Register Rclass = Rcache; | |
| 2576 Register Roffset= G4_scratch; | |
| 2577 Register Rflags = G1_scratch; | |
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2578 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2579 |
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2580 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2581 jvmti_post_field_mod(Rcache, index, is_static); |
| 2582 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2583 | |
| 2584 Assembler::Membar_mask_bits read_bits = | |
| 2585 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2586 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2587 | |
| 2588 Label notVolatile, checkVolatile, exit; | |
| 2589 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
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2590 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2591 __ and3(Rflags, Lscratch, Lscratch); |
| 2592 | |
| 2593 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2594 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2595 volatile_barrier(read_bits); |
| 2596 __ bind(notVolatile); | |
| 2597 } | |
| 2598 } | |
| 2599 | |
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2600 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2601 // Make sure we don't need to mask Rflags after the above shift |
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2602 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2603 |
| 2604 // compute field type | |
| 2605 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
| 2606 | |
| 2607 if (is_static) { | |
| 2608 // putstatic with object type most likely, check that first | |
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2609 __ cmp(Rflags, atos); |
| 0 | 2610 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2611 __ delayed()->cmp(Rflags, itos); |
| 0 | 2612 |
| 2613 // atos | |
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2614 { |
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2615 __ pop_ptr(); |
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2616 __ verify_oop(Otos_i); |
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2617 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
|
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2618 __ ba(checkVolatile); |
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|
2619 __ delayed()->tst(Lscratch); |
|
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|
2620 } |
| 0 | 2621 |
| 2622 __ bind(notObj); | |
|
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2623 // cmp(Rflags, itos); |
| 0 | 2624 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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2625 __ delayed()->cmp(Rflags, btos); |
| 0 | 2626 |
| 2627 // itos | |
|
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|
2628 { |
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|
2629 __ pop_i(); |
|
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|
2630 __ st(Otos_i, Rclass, Roffset); |
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2631 __ ba(checkVolatile); |
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2632 __ delayed()->tst(Lscratch); |
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2633 } |
| 0 | 2634 |
| 2635 __ bind(notInt); | |
| 2636 } else { | |
| 2637 // putfield with int type most likely, check that first | |
|
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2638 __ cmp(Rflags, itos); |
| 0 | 2639 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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2640 __ delayed()->cmp(Rflags, atos); |
| 0 | 2641 |
| 2642 // itos | |
|
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2643 { |
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|
2644 __ pop_i(); |
|
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2645 pop_and_check_object(Rclass); |
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2646 __ st(Otos_i, Rclass, Roffset); |
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2647 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
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2648 __ ba(checkVolatile); |
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|
2649 __ delayed()->tst(Lscratch); |
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|
2650 } |
| 0 | 2651 |
| 2652 __ bind(notInt); | |
|
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2653 // cmp(Rflags, atos); |
| 0 | 2654 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
|
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2655 __ delayed()->cmp(Rflags, btos); |
| 0 | 2656 |
| 2657 // atos | |
|
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|
2658 { |
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|
2659 __ pop_ptr(); |
|
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|
2660 pop_and_check_object(Rclass); |
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|
2661 __ verify_oop(Otos_i); |
|
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|
2662 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2663 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2664 __ ba(checkVolatile); |
|
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|
2665 __ delayed()->tst(Lscratch); |
|
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|
2666 } |
| 0 | 2667 |
| 2668 __ bind(notObj); | |
| 2669 } | |
| 2670 | |
|
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|
2671 // cmp(Rflags, btos); |
| 0 | 2672 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
|
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|
2673 __ delayed()->cmp(Rflags, ltos); |
| 0 | 2674 |
| 2675 // btos | |
|
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|
2676 { |
|
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|
2677 __ pop_i(); |
|
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|
2678 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2679 __ stb(Otos_i, Rclass, Roffset); |
|
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|
2680 if (!is_static) { |
|
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|
2681 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2682 } |
|
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|
2683 __ ba(checkVolatile); |
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|
2684 __ delayed()->tst(Lscratch); |
| 0 | 2685 } |
| 2686 | |
| 2687 __ bind(notByte); | |
|
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|
2688 // cmp(Rflags, ltos); |
| 0 | 2689 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
|
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|
2690 __ delayed()->cmp(Rflags, ctos); |
| 0 | 2691 |
| 2692 // ltos | |
|
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|
2693 { |
|
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|
2694 __ pop_l(); |
|
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|
2695 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2696 __ st_long(Otos_l, Rclass, Roffset); |
|
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|
2697 if (!is_static) { |
|
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|
2698 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2699 } |
|
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|
2700 __ ba(checkVolatile); |
|
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|
2701 __ delayed()->tst(Lscratch); |
| 0 | 2702 } |
| 2703 | |
| 2704 __ bind(notLong); | |
|
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|
2705 // cmp(Rflags, ctos); |
| 0 | 2706 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
|
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|
2707 __ delayed()->cmp(Rflags, stos); |
| 0 | 2708 |
| 2709 // ctos (char) | |
|
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|
2710 { |
|
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|
2711 __ pop_i(); |
|
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|
2712 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2713 __ sth(Otos_i, Rclass, Roffset); |
|
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|
2714 if (!is_static) { |
|
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|
2715 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2716 } |
|
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|
2717 __ ba(checkVolatile); |
|
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|
2718 __ delayed()->tst(Lscratch); |
| 0 | 2719 } |
| 2720 | |
| 2721 __ bind(notChar); | |
|
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|
2722 // cmp(Rflags, stos); |
| 0 | 2723 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
|
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|
2724 __ delayed()->cmp(Rflags, ftos); |
|
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|
2725 |
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|
2726 // stos (short) |
|
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|
2727 { |
|
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|
2728 __ pop_i(); |
|
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|
2729 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2730 __ sth(Otos_i, Rclass, Roffset); |
|
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|
2731 if (!is_static) { |
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|
2732 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2733 } |
|
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|
2734 __ ba(checkVolatile); |
|
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|
2735 __ delayed()->tst(Lscratch); |
| 0 | 2736 } |
| 2737 | |
| 2738 __ bind(notShort); | |
|
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|
2739 // cmp(Rflags, ftos); |
| 0 | 2740 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
| 2741 __ delayed()->nop(); | |
| 2742 | |
| 2743 // ftos | |
|
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|
2744 { |
|
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|
2745 __ pop_f(); |
|
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|
2746 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2747 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
|
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|
2748 if (!is_static) { |
|
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|
2749 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2750 } |
|
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|
2751 __ ba(checkVolatile); |
|
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|
2752 __ delayed()->tst(Lscratch); |
| 0 | 2753 } |
| 2754 | |
| 2755 __ bind(notFloat); | |
| 2756 | |
| 2757 // dtos | |
|
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|
2758 { |
|
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|
2759 __ pop_d(); |
|
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|
2760 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2761 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
|
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|
2762 if (!is_static) { |
|
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|
2763 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2764 } |
| 0 | 2765 } |
| 2766 | |
| 2767 __ bind(checkVolatile); | |
| 2768 __ tst(Lscratch); | |
| 2769 | |
| 2770 if (__ membar_has_effect(write_bits)) { | |
| 2771 // __ tst(Lscratch); in delay slot | |
| 2772 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2773 __ delayed()->nop(); | |
| 2774 volatile_barrier(Assembler::StoreLoad); | |
| 2775 __ bind(exit); | |
| 2776 } | |
| 2777 } | |
| 2778 | |
| 2779 void TemplateTable::fast_storefield(TosState state) { | |
| 2780 transition(state, vtos); | |
| 2781 Register Rcache = G3_scratch; | |
| 2782 Register Rclass = Rcache; | |
| 2783 Register Roffset= G4_scratch; | |
| 2784 Register Rflags = G1_scratch; | |
|
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2785 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2786 |
| 2787 jvmti_post_fast_field_mod(); | |
| 2788 | |
| 2789 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
| 2790 | |
| 2791 Assembler::Membar_mask_bits read_bits = | |
| 2792 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2793 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2794 | |
| 2795 Label notVolatile, checkVolatile, exit; | |
| 2796 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 727 | 2797 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
|
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|
2798 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2799 __ and3(Rflags, Lscratch, Lscratch); |
| 2800 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2801 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2802 volatile_barrier(read_bits); |
| 2803 __ bind(notVolatile); | |
| 2804 } | |
| 2805 } | |
| 2806 | |
| 727 | 2807 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2808 pop_and_check_object(Rclass); |
| 2809 | |
| 2810 switch (bytecode()) { | |
| 2811 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
| 2812 case Bytecodes::_fast_cputfield: /* fall through */ | |
| 2813 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
| 2814 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
| 2815 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
| 2816 case Bytecodes::_fast_fputfield: | |
| 2817 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
| 2818 break; | |
| 2819 case Bytecodes::_fast_dputfield: | |
| 2820 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
| 2821 break; | |
| 2822 case Bytecodes::_fast_aputfield: | |
|
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2823 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
| 0 | 2824 break; |
| 2825 default: | |
| 2826 ShouldNotReachHere(); | |
| 2827 } | |
| 2828 | |
| 2829 if (__ membar_has_effect(write_bits)) { | |
| 3839 | 2830 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
| 0 | 2831 volatile_barrier(Assembler::StoreLoad); |
| 2832 __ bind(exit); | |
| 2833 } | |
| 2834 } | |
| 2835 | |
| 2836 | |
| 2837 void TemplateTable::putfield(int byte_no) { | |
| 2838 putfield_or_static(byte_no, false); | |
| 2839 } | |
| 2840 | |
| 2841 void TemplateTable::putstatic(int byte_no) { | |
| 2842 putfield_or_static(byte_no, true); | |
| 2843 } | |
| 2844 | |
| 2845 | |
| 2846 void TemplateTable::fast_xaccess(TosState state) { | |
| 2847 transition(vtos, state); | |
| 2848 Register Rcache = G3_scratch; | |
| 2849 Register Roffset = G4_scratch; | |
| 2850 Register Rflags = G4_scratch; | |
| 2851 Register Rreceiver = Lscratch; | |
| 2852 | |
| 1506 | 2853 __ ld_ptr(Llocals, 0, Rreceiver); |
| 0 | 2854 |
| 2855 // access constant pool cache (is resolved) | |
| 2856 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
|
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2857 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2858 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
| 2859 | |
| 2860 __ verify_oop(Rreceiver); | |
| 2861 __ null_check(Rreceiver); | |
| 2862 if (state == atos) { | |
|
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2863 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
| 0 | 2864 } else if (state == itos) { |
| 2865 __ ld (Rreceiver, Roffset, Otos_i) ; | |
| 2866 } else if (state == ftos) { | |
| 2867 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
| 2868 } else { | |
| 2869 ShouldNotReachHere(); | |
| 2870 } | |
| 2871 | |
| 2872 Assembler::Membar_mask_bits membar_bits = | |
| 2873 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2874 if (__ membar_has_effect(membar_bits)) { | |
| 2875 | |
| 2876 // Get is_volatile value in Rflags and check if membar is needed | |
|
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2877 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2878 |
| 2879 // Test volatile | |
| 2880 Label notVolatile; | |
|
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2881 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2882 __ btst(Rflags, Lscratch); |
| 2883 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2884 __ delayed()->nop(); | |
| 2885 volatile_barrier(membar_bits); | |
| 2886 __ bind(notVolatile); | |
| 2887 } | |
| 2888 | |
| 2889 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
| 2890 __ sub(Lbcp, 1, Lbcp); | |
| 2891 } | |
| 2892 | |
| 2893 //---------------------------------------------------------------------------------------------------- | |
| 2894 // Calls | |
| 2895 | |
| 2896 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2897 // implemented elsewhere | |
| 2898 ShouldNotReachHere(); | |
| 2899 } | |
| 2900 | |
|
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2901 void TemplateTable::prepare_invoke(int byte_no, |
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2902 Register method, // linked method (or i-klass) |
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2903 Register ra, // return address |
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2904 Register index, // itable index, MethodType, etc. |
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2905 Register recv, // if caller wants to see it |
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2906 Register flags // if caller wants to test it |
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2907 ) { |
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2908 // determine flags |
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2909 const Bytecodes::Code code = bytecode(); |
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2910 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2911 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2912 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2913 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2914 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2915 const bool load_receiver = (recv != noreg); |
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2916 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2917 assert(recv == noreg || recv == O0, ""); |
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2918 assert(flags == noreg || flags == O1, ""); |
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2919 |
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2920 // setup registers & access constant pool cache |
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2921 if (recv == noreg) recv = O0; |
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2922 if (flags == noreg) flags = O1; |
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2923 const Register temp = O2; |
|
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2924 assert_different_registers(method, ra, index, recv, flags, temp); |
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2925 |
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2926 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
|
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2927 |
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2928 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
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2929 |
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2930 // maybe push appendix to arguments |
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2931 if (is_invokedynamic || is_invokehandle) { |
|
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2932 Label L_no_push; |
|
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2933 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
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2934 __ btst(flags, temp); |
|
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2935 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
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2936 __ delayed()->nop(); |
|
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2937 // Push the appendix as a trailing parameter. |
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2938 // This must be done before we get the receiver, |
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2939 // since the parameter_size includes it. |
|
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2940 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2941 __ load_resolved_reference_at_index(temp, index); |
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2942 __ verify_oop(temp); |
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2943 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
|
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2944 __ bind(L_no_push); |
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2945 } |
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2946 |
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2947 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2948 if (load_receiver) { |
|
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2949 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
|
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2950 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
|
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2951 __ verify_oop(recv); |
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2952 } |
|
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2953 |
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2954 // compute return type |
|
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2955 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
|
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2956 // Make sure we don't need to mask flags after the above shift |
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2957 ConstantPoolCacheEntry::verify_tos_state_shift(); |
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|
2958 // load return address |
|
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2959 { |
|
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2960 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
|
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2961 (address)Interpreter::return_5_addrs_by_index_table() : |
|
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2962 (address)Interpreter::return_3_addrs_by_index_table(); |
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2963 AddressLiteral table(table_addr); |
|
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2964 __ set(table, temp); |
|
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2965 __ sll(ra, LogBytesPerWord, ra); |
|
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2966 __ ld_ptr(Address(temp, ra), ra); |
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|
2967 } |
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|
2968 } |
|
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|
2969 |
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|
2970 |
| 0 | 2971 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
| 2972 Register Rtemp = G4_scratch; | |
| 2973 Register Rcall = Rindex; | |
| 2974 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 2975 | |
|
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2976 // get target Method* & entry point |
|
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2977 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
| 0 | 2978 __ call_from_interpreter(Rcall, Gargs, Rret); |
| 2979 } | |
| 2980 | |
| 2981 void TemplateTable::invokevirtual(int byte_no) { | |
| 2982 transition(vtos, vtos); | |
| 1565 | 2983 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 2984 |
| 2985 Register Rscratch = G3_scratch; | |
|
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2986 Register Rtemp = G4_scratch; |
|
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2987 Register Rret = Lscratch; |
|
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2988 Register O0_recv = O0; |
| 0 | 2989 Label notFinal; |
| 2990 | |
| 1565 | 2991 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
| 0 | 2992 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2993 | |
| 2994 // Check for vfinal | |
|
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2995 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
| 0 | 2996 __ btst(Rret, G4_scratch); |
| 2997 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 2998 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
| 2999 | |
| 3000 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
| 3001 | |
| 3002 invokevfinal_helper(Rscratch, Rret); | |
| 3003 | |
| 3004 __ bind(notFinal); | |
| 3005 | |
| 3006 __ mov(G5_method, Rscratch); // better scratch register | |
|
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3007 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
|
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3008 // receiver is in O0_recv |
|
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|
3009 __ verify_oop(O0_recv); |
| 0 | 3010 |
| 3011 // get return address | |
| 727 | 3012 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3013 __ set(table, Rtemp); | |
|
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3014 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
|
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3015 // Make sure we don't need to mask Rret after the above shift |
|
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|
3016 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3017 __ sll(Rret, LogBytesPerWord, Rret); |
| 3018 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3019 | |
| 3020 // get receiver klass | |
|
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|
3021 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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|
3022 __ load_klass(O0_recv, O0_recv); |
|
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|
3023 __ verify_klass_ptr(O0_recv); |
|
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|
3024 |
|
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|
3025 __ profile_virtual_call(O0_recv, O4); |
|
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|
3026 |
|
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|
3027 generate_vtable_call(O0_recv, Rscratch, Rret); |
| 0 | 3028 } |
| 3029 | |
| 3030 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3031 transition(vtos, vtos); | |
| 1565 | 3032 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3033 |
| 3034 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
| 1565 | 3035 /*is_invokevfinal*/true, false); |
| 0 | 3036 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3037 invokevfinal_helper(G3_scratch, Lscratch); | |
| 3038 } | |
| 3039 | |
| 3040 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
| 3041 Register Rtemp = G4_scratch; | |
| 3042 | |
| 3043 // Load receiver from stack slot | |
|
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|
3044 __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G4_scratch); |
|
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|
3045 __ lduh(G4_scratch, in_bytes(ConstMethod::size_of_parameters_offset()), G4_scratch); |
| 0 | 3046 __ load_receiver(G4_scratch, O0); |
| 3047 | |
| 3048 // receiver NULL check | |
| 3049 __ null_check(O0); | |
| 3050 | |
| 3051 __ profile_final_call(O4); | |
| 3052 | |
| 3053 // get return address | |
| 727 | 3054 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3055 __ set(table, Rtemp); | |
|
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|
3056 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
|
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|
3057 // Make sure we don't need to mask Rret after the above shift |
|
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|
3058 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3059 __ sll(Rret, LogBytesPerWord, Rret); |
| 3060 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3061 | |
| 3062 | |
| 3063 // do the call | |
| 3064 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3065 } | |
| 3066 | |
|
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|
3067 |
| 0 | 3068 void TemplateTable::invokespecial(int byte_no) { |
| 3069 transition(vtos, vtos); | |
| 1565 | 3070 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3071 |
|
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|
3072 const Register Rret = Lscratch; |
|
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|
3073 const Register O0_recv = O0; |
|
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|
3074 const Register Rscratch = G3_scratch; |
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|
3075 |
|
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|
3076 prepare_invoke(byte_no, G5_method, Rret, noreg, O0_recv); // get receiver also for null check |
|
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|
3077 __ null_check(O0_recv); |
| 0 | 3078 |
| 3079 // do the call | |
|
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|
3080 __ profile_call(O4); |
| 0 | 3081 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3082 } | |
| 3083 | |
|
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|
3084 |
| 0 | 3085 void TemplateTable::invokestatic(int byte_no) { |
| 3086 transition(vtos, vtos); | |
| 1565 | 3087 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3088 |
|
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|
3089 const Register Rret = Lscratch; |
|
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3090 const Register Rscratch = G3_scratch; |
|
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|
3091 |
|
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|
3092 prepare_invoke(byte_no, G5_method, Rret); // get f1 Method* |
| 0 | 3093 |
| 3094 // do the call | |
|
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|
3095 __ profile_call(O4); |
| 0 | 3096 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3097 } | |
| 3098 | |
|
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|
3099 void TemplateTable::invokeinterface_object_method(Register RKlass, |
| 0 | 3100 Register Rcall, |
| 3101 Register Rret, | |
| 3102 Register Rflags) { | |
| 3103 Register Rscratch = G4_scratch; | |
| 3104 Register Rindex = Lscratch; | |
| 3105 | |
| 3106 assert_different_registers(Rscratch, Rindex, Rret); | |
| 3107 | |
| 3108 Label notFinal; | |
| 3109 | |
| 3110 // Check for vfinal | |
|
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|
3111 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), Rscratch); |
| 0 | 3112 __ btst(Rflags, Rscratch); |
| 3113 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 3114 __ delayed()->nop(); | |
| 3115 | |
| 3116 __ profile_final_call(O4); | |
| 3117 | |
|
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3118 // do the call - the index (f2) contains the Method* |
| 0 | 3119 assert_different_registers(G5_method, Gargs, Rcall); |
| 3120 __ mov(Rindex, G5_method); | |
| 3121 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3122 __ bind(notFinal); | |
| 3123 | |
|
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3124 __ profile_virtual_call(RKlass, O4); |
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|
3125 generate_vtable_call(RKlass, Rindex, Rret); |
| 0 | 3126 } |
| 3127 | |
| 3128 | |
| 3129 void TemplateTable::invokeinterface(int byte_no) { | |
| 3130 transition(vtos, vtos); | |
| 1565 | 3131 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3132 |
|
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|
3133 const Register Rinterface = G1_scratch; |
|
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|
3134 const Register Rret = G3_scratch; |
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3135 const Register Rindex = Lscratch; |
|
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3136 const Register O0_recv = O0; |
|
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3137 const Register O1_flags = O1; |
|
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3138 const Register O2_Klass = O2; |
|
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|
3139 const Register Rscratch = G4_scratch; |
| 0 | 3140 assert_different_registers(Rscratch, G5_method); |
| 3141 | |
|
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|
3142 prepare_invoke(byte_no, Rinterface, Rret, Rindex, O0_recv, O1_flags); |
| 0 | 3143 |
| 3144 // get receiver klass | |
|
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|
3145 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
|
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|
3146 __ load_klass(O0_recv, O2_Klass); |
| 0 | 3147 |
| 3148 // Special case of invokeinterface called for virtual method of | |
| 3149 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3150 // This code isn't produced by javac, but could be produced by | |
| 3151 // another compliant java compiler. | |
| 3152 Label notMethod; | |
|
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|
3153 __ set((1 << ConstantPoolCacheEntry::is_forced_virtual_shift), Rscratch); |
|
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|
3154 __ btst(O1_flags, Rscratch); |
| 0 | 3155 __ br(Assembler::zero, false, Assembler::pt, notMethod); |
| 3156 __ delayed()->nop(); | |
| 3157 | |
|
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|
3158 invokeinterface_object_method(O2_Klass, Rinterface, Rret, O1_flags); |
| 0 | 3159 |
| 3160 __ bind(notMethod); | |
| 3161 | |
|
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|
3162 __ profile_virtual_call(O2_Klass, O4); |
| 0 | 3163 |
| 3164 // | |
| 3165 // find entry point to call | |
| 3166 // | |
| 3167 | |
| 3168 // compute start of first itableOffsetEntry (which is at end of vtable) | |
|
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|
3169 const int base = InstanceKlass::vtable_start_offset() * wordSize; |
| 0 | 3170 Label search; |
|
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|
3171 Register Rtemp = O1_flags; |
|
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|
3172 |
|
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|
3173 __ ld(O2_Klass, InstanceKlass::vtable_length_offset() * wordSize, Rtemp); |
| 0 | 3174 if (align_object_offset(1) > 1) { |
| 3175 __ round_to(Rtemp, align_object_offset(1)); | |
| 3176 } | |
| 3177 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
| 3178 if (Assembler::is_simm13(base)) { | |
| 3179 __ add(Rtemp, base, Rtemp); | |
| 3180 } else { | |
| 3181 __ set(base, Rscratch); | |
| 3182 __ add(Rscratch, Rtemp, Rtemp); | |
| 3183 } | |
|
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|
3184 __ add(O2_Klass, Rtemp, Rscratch); |
| 0 | 3185 |
| 3186 __ bind(search); | |
| 3187 | |
| 3188 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
| 3189 { | |
| 3190 Label ok; | |
| 3191 | |
| 3192 // Check that entry is non-null. Null entries are probably a bytecode | |
| 605 | 3193 // problem. If the interface isn't implemented by the receiver class, |
| 0 | 3194 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
| 3195 // this too but that's only if the entry isn't already resolved, so we | |
| 3196 // need to check again. | |
| 3839 | 3197 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
| 0 | 3198 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
| 3199 __ should_not_reach_here(); | |
| 3200 __ bind(ok); | |
| 3201 } | |
| 3202 | |
| 3203 __ cmp(Rinterface, Rtemp); | |
| 3204 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
| 3205 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
| 3206 | |
| 3207 // entry found and Rscratch points to it | |
| 3208 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
| 3209 | |
| 3210 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
| 3211 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
| 3212 __ add(Rscratch, Rindex, Rscratch); | |
|
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3213 __ ld_ptr(O2_Klass, Rscratch, G5_method); |
| 0 | 3214 |
| 3215 // Check for abstract method error. | |
| 3216 { | |
| 3217 Label ok; | |
| 3839 | 3218 __ br_notnull_short(G5_method, Assembler::pt, ok); |
| 0 | 3219 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
| 3220 __ should_not_reach_here(); | |
| 3221 __ bind(ok); | |
| 3222 } | |
| 3223 | |
| 3224 Register Rcall = Rinterface; | |
| 3225 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 3226 | |
| 3227 __ call_from_interpreter(Rcall, Gargs, Rret); | |
|
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|
3228 } |
|
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|
3229 |
|
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|
3230 void TemplateTable::invokehandle(int byte_no) { |
|
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|
3231 transition(vtos, vtos); |
|
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3232 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3233 |
|
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|
3234 if (!EnableInvokeDynamic) { |
|
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|
3235 // rewriter does not generate this bytecode |
|
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|
3236 __ should_not_reach_here(); |
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|
3237 return; |
|
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|
3238 } |
|
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|
3239 |
|
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|
3240 const Register Rret = Lscratch; |
|
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3241 const Register G4_mtype = G4_scratch; |
|
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3242 const Register O0_recv = O0; |
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|
3243 const Register Rscratch = G3_scratch; |
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|
3244 |
|
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|
3245 prepare_invoke(byte_no, G5_method, Rret, G4_mtype, O0_recv); |
|
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|
3246 __ null_check(O0_recv); |
|
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|
3247 |
|
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|
3248 // G4: MethodType object (from cpool->resolved_references[f1], if necessary) |
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3249 // G5: MH.invokeExact_MT method (from f2) |
|
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|
3250 |
|
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|
3251 // Note: G4_mtype is already pushed (if necessary) by prepare_invoke |
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|
3252 |
|
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|
3253 // do the call |
|
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3254 __ verify_oop(G4_mtype); |
|
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3255 __ profile_final_call(O4); // FIXME: profile the LambdaForm also |
|
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3256 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 0 | 3257 } |
| 3258 | |
| 3259 | |
|
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6655646: dynamic languages need dynamically linked call sites
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|
3260 void TemplateTable::invokedynamic(int byte_no) { |
|
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|
3261 transition(vtos, vtos); |
|
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3262 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3263 |
|
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|
3264 if (!EnableInvokeDynamic) { |
|
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|
3265 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
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|
3266 // The verifier will stop it. However, if we get past the verifier, |
|
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6655646: dynamic languages need dynamically linked call sites
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|
3267 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
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|
3268 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
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|
3269 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
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|
3270 // the call_VM checks for exception, so we should never return here. |
|
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|
3271 __ should_not_reach_here(); |
|
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|
3272 return; |
|
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6655646: dynamic languages need dynamically linked call sites
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|
3273 } |
|
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|
3274 |
|
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|
3275 const Register Rret = Lscratch; |
|
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|
3276 const Register G4_callsite = G4_scratch; |
|
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3277 const Register Rscratch = G3_scratch; |
|
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3278 |
|
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|
3279 prepare_invoke(byte_no, G5_method, Rret, G4_callsite); |
|
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3280 |
|
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
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diff
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|
3281 // G4: CallSite object (from cpool->resolved_references[f1]) |
|
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|
3282 // G5: MH.linkToCallSite method (from f2) |
|
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3283 |
|
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|
3284 // Note: G4_callsite is already pushed by prepare_invoke |
|
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3285 |
|
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|
3286 // %%% should make a type profile for any invokedynamic that takes a ref argument |
| 1503 | 3287 // profile this call |
| 3288 __ profile_call(O4); | |
| 3289 | |
|
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|
3290 // do the call |
|
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3291 __ verify_oop(G4_callsite); |
|
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|
3292 __ call_from_interpreter(Rscratch, Gargs, Rret); |
|
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|
3293 } |
|
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|
3294 |
|
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|
3295 |
| 0 | 3296 //---------------------------------------------------------------------------------------------------- |
| 3297 // Allocation | |
| 3298 | |
| 3299 void TemplateTable::_new() { | |
| 3300 transition(vtos, atos); | |
| 3301 | |
| 3302 Label slow_case; | |
| 3303 Label done; | |
| 3304 Label initialize_header; | |
| 3305 Label initialize_object; // including clearing the fields | |
| 3306 | |
| 3307 Register RallocatedObject = Otos_i; | |
| 3308 Register RinstanceKlass = O1; | |
| 3309 Register Roffset = O3; | |
| 3310 Register Rscratch = O4; | |
| 3311 | |
| 3312 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3313 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
| 3314 // make sure the class we're about to instantiate has been resolved | |
|
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3315 // This is done before loading InstanceKlass to be consistent with the order |
|
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3316 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
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|
3317 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3318 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3319 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3320 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3321 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
|
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|
3322 // get InstanceKlass |
| 0 | 3323 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
|
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|
3324 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3325 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); |
| 3326 | |
| 3327 // make sure klass is fully initialized: | |
|
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|
3328 __ ldub(RinstanceKlass, in_bytes(InstanceKlass::init_state_offset()), G3_scratch); |
|
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|
3329 __ cmp(G3_scratch, InstanceKlass::fully_initialized); |
| 0 | 3330 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); |
|
4762
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stefank
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3892
diff
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|
3331 __ delayed()->ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3332 |
|
6725
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|
3333 // get instance_size in InstanceKlass (already aligned) |
|
4762
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3892
diff
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|
3334 //__ ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3335 |
| 3336 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
| 3337 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
| 3338 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
| 3339 __ delayed()->nop(); | |
| 3340 | |
| 3341 // allocate the instance | |
| 3342 // 1) Try to allocate in the TLAB | |
| 3343 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
| 3344 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3345 // (creates a new TLAB, etc.) | |
| 3346 | |
| 3347 const bool allow_shared_alloc = | |
| 3348 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3349 | |
| 3350 if(UseTLAB) { | |
| 3351 Register RoldTopValue = RallocatedObject; | |
| 3892 | 3352 Register RtlabWasteLimitValue = G3_scratch; |
| 0 | 3353 Register RnewTopValue = G1_scratch; |
| 3354 Register RendValue = Rscratch; | |
| 3355 Register RfreeValue = RnewTopValue; | |
| 3356 | |
| 3357 // check if we can allocate in the TLAB | |
| 3358 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
| 3359 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
| 3360 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3361 | |
| 3362 // if there is enough space, we do not CAS and do not clear | |
| 3363 __ cmp(RnewTopValue, RendValue); | |
| 3364 if(ZeroTLAB) { | |
| 3365 // the fields have already been cleared | |
| 3366 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
| 3367 } else { | |
| 3368 // initialize both the header and fields | |
| 3369 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
| 3370 } | |
| 3371 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
| 3372 | |
| 3373 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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|
3374 // Check if tlab should be discarded (refill_waste_limit >= free) |
|
b1a2afa37ec4
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diff
changeset
|
3375 __ 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
|
3376 __ sub(RendValue, RoldTopValue, RfreeValue); |
| 0 | 3377 #ifdef _LP64 |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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1972
diff
changeset
|
3378 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3379 #else |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3380 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3381 #endif |
| 3839 | 3382 __ 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
|
3383 |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3384 // increment waste limit to prevent getting stuck on this slow path |
|
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3385 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3386 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
| 0 | 3387 } else { |
| 3388 // No allocation in the shared eden. | |
| 3839 | 3389 __ ba_short(slow_case); |
| 0 | 3390 } |
| 3391 } | |
| 3392 | |
| 3393 // Allocation in the shared Eden | |
| 3394 if (allow_shared_alloc) { | |
| 3395 Register RoldTopValue = G1_scratch; | |
| 3396 Register RtopAddr = G3_scratch; | |
| 3397 Register RnewTopValue = RallocatedObject; | |
| 3398 Register RendValue = Rscratch; | |
| 3399 | |
| 3400 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
| 3401 | |
| 3402 Label retry; | |
| 3403 __ bind(retry); | |
| 3404 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
| 3405 __ ld_ptr(RendValue, 0, RendValue); | |
| 3406 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
| 3407 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3408 | |
| 3409 // RnewTopValue contains the top address after the new object | |
| 3410 // has been allocated. | |
| 3839 | 3411 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
| 0 | 3412 |
| 3413 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
| 3414 VM_Version::v9_instructions_work() ? NULL : | |
| 3415 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
| 3416 | |
| 3417 // if someone beat us on the allocation, try again, otherwise continue | |
| 3839 | 3418 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
|
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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|
3419 |
|
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diff
changeset
|
3420 // bump total bytes allocated by this thread |
|
2127
5577848f5923
7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument
phh
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2100
diff
changeset
|
3421 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
|
5577848f5923
7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument
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2100
diff
changeset
|
3422 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
| 0 | 3423 } |
| 3424 | |
| 3425 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3426 // clear object fields | |
| 3427 __ bind(initialize_object); | |
| 3428 __ deccc(Roffset, sizeof(oopDesc)); | |
| 3429 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
| 3430 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
| 3431 | |
| 3432 // initialize remaining object fields | |
| 3892 | 3433 if (UseBlockZeroing) { |
| 3434 // Use BIS for zeroing | |
| 3435 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
| 3436 } else { | |
| 3437 Label loop; | |
| 0 | 3438 __ subcc(Roffset, wordSize, Roffset); |
| 3439 __ bind(loop); | |
| 3440 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
| 3441 __ st_ptr(G0, G3_scratch, Roffset); | |
| 3442 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
| 3443 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
| 3444 } | |
| 3839 | 3445 __ ba_short(initialize_header); |
| 0 | 3446 } |
| 3447 | |
| 3448 // slow case | |
| 3449 __ bind(slow_case); | |
| 3450 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3451 __ get_constant_pool(O1); | |
| 3452 | |
| 3453 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
| 3454 | |
| 3839 | 3455 __ ba_short(done); |
| 0 | 3456 |
| 3457 // Initialize the header: mark, klass | |
| 3458 __ bind(initialize_header); | |
| 3459 | |
| 3460 if (UseBiasedLocking) { | |
|
4762
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diff
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|
3461 __ ld_ptr(RinstanceKlass, in_bytes(Klass::prototype_header_offset()), G4_scratch); |
| 0 | 3462 } else { |
| 3463 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
| 3464 } | |
| 3465 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
|
167
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6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
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113
diff
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|
3466 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
|
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|
3467 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
| 0 | 3468 |
| 3469 { | |
| 3470 SkipIfEqual skip_if( | |
| 3471 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
| 3472 // Trigger dtrace event | |
| 3473 __ push(atos); | |
| 3474 __ call_VM_leaf(noreg, | |
| 3475 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
| 3476 __ pop(atos); | |
| 3477 } | |
| 3478 | |
| 3479 // continue | |
| 3480 __ bind(done); | |
| 3481 } | |
| 3482 | |
| 3483 | |
| 3484 | |
| 3485 void TemplateTable::newarray() { | |
| 3486 transition(itos, atos); | |
| 3487 __ ldub(Lbcp, 1, O1); | |
| 3488 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
| 3489 } | |
| 3490 | |
| 3491 | |
| 3492 void TemplateTable::anewarray() { | |
| 3493 transition(itos, atos); | |
| 3494 __ get_constant_pool(O1); | |
| 3495 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3496 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
| 3497 } | |
| 3498 | |
| 3499 | |
| 3500 void TemplateTable::arraylength() { | |
| 3501 transition(atos, itos); | |
| 3502 Label ok; | |
| 3503 __ verify_oop(Otos_i); | |
| 3504 __ tst(Otos_i); | |
| 3505 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
| 3506 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
| 3507 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3508 } | |
| 3509 | |
| 3510 | |
| 3511 void TemplateTable::checkcast() { | |
| 3512 transition(atos, atos); | |
| 3513 Label done, is_null, quicked, cast_ok, resolved; | |
| 3514 Register Roffset = G1_scratch; | |
| 3515 Register RobjKlass = O5; | |
| 3516 Register RspecifiedKlass = O4; | |
| 3517 | |
| 3518 // Check for casting a NULL | |
| 3839 | 3519 __ br_null_short(Otos_i, Assembler::pn, is_null); |
| 0 | 3520 |
| 3521 // Get value klass in RobjKlass | |
|
113
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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0
diff
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|
3522 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3523 |
| 3524 // Get constant pool tag | |
| 3525 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3526 | |
| 3527 // See if the checkcast has been quickened | |
| 3528 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3529 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3530 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3531 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3532 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3533 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3534 | |
| 3535 __ push_ptr(); // save receiver for result, and for GC | |
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3536 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3537 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3538 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3539 | |
| 3839 | 3540 __ ba_short(resolved); |
| 0 | 3541 |
| 3542 // Extract target class from constant pool | |
| 3543 __ bind(quicked); | |
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3544 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3545 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); |
| 3546 __ bind(resolved); | |
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3547 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3548 |
| 3549 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3550 // failure. Throw exception if failure. | |
| 3551 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
| 3552 | |
| 3553 // Not a subtype; so must throw exception | |
| 3554 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
| 3555 | |
| 3556 __ bind(cast_ok); | |
| 3557 | |
| 3558 if (ProfileInterpreter) { | |
| 3839 | 3559 __ ba_short(done); |
| 0 | 3560 } |
| 3561 __ bind(is_null); | |
| 3562 __ profile_null_seen(G3_scratch); | |
| 3563 __ bind(done); | |
| 3564 } | |
| 3565 | |
| 3566 | |
| 3567 void TemplateTable::instanceof() { | |
| 3568 Label done, is_null, quicked, resolved; | |
| 3569 transition(atos, itos); | |
| 3570 Register Roffset = G1_scratch; | |
| 3571 Register RobjKlass = O5; | |
| 3572 Register RspecifiedKlass = O4; | |
| 3573 | |
| 3574 // Check for casting a NULL | |
| 3839 | 3575 __ br_null_short(Otos_i, Assembler::pt, is_null); |
| 0 | 3576 |
| 3577 // Get value klass in RobjKlass | |
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3578 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3579 |
| 3580 // Get constant pool tag | |
| 3581 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3582 | |
| 3583 // See if the checkcast has been quickened | |
| 3584 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3585 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3586 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3587 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3588 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3589 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3590 | |
| 3591 __ push_ptr(); // save receiver for result, and for GC | |
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3592 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3593 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3594 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3595 | |
| 3839 | 3596 __ ba_short(resolved); |
| 0 | 3597 |
| 3598 // Extract target class from constant pool | |
| 3599 __ bind(quicked); | |
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3600 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3601 __ get_constant_pool(Lscratch); |
| 3602 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3603 __ bind(resolved); | |
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3604 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3605 |
| 3606 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3607 // failure. Return 0 if failure. | |
| 3608 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
| 3609 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
| 3610 // Not a subtype; return 0; | |
| 3611 __ clr( Otos_i ); | |
| 3612 | |
| 3613 if (ProfileInterpreter) { | |
| 3839 | 3614 __ ba_short(done); |
| 0 | 3615 } |
| 3616 __ bind(is_null); | |
| 3617 __ profile_null_seen(G3_scratch); | |
| 3618 __ bind(done); | |
| 3619 } | |
| 3620 | |
| 3621 void TemplateTable::_breakpoint() { | |
| 3622 | |
| 3623 // Note: We get here even if we are single stepping.. | |
| 3624 // jbug inists on setting breakpoints at every bytecode | |
| 3625 // even if we are in single step mode. | |
| 3626 | |
| 3627 transition(vtos, vtos); | |
| 3628 // get the unpatched byte code | |
| 3629 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
| 3630 __ mov(O0, Lbyte_code); | |
| 3631 | |
| 3632 // post the breakpoint event | |
| 3633 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
| 3634 | |
| 3635 // complete the execution of original bytecode | |
| 3636 __ dispatch_normal(vtos); | |
| 3637 } | |
| 3638 | |
| 3639 | |
| 3640 //---------------------------------------------------------------------------------------------------- | |
| 3641 // Exceptions | |
| 3642 | |
| 3643 void TemplateTable::athrow() { | |
| 3644 transition(atos, vtos); | |
| 3645 | |
| 3646 // This works because exception is cached in Otos_i which is same as O0, | |
| 3647 // which is same as what throw_exception_entry_expects | |
| 3648 assert(Otos_i == Oexception, "see explanation above"); | |
| 3649 | |
| 3650 __ verify_oop(Otos_i); | |
| 3651 __ null_check(Otos_i); | |
| 3652 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
| 3653 } | |
| 3654 | |
| 3655 | |
| 3656 //---------------------------------------------------------------------------------------------------- | |
| 3657 // Synchronization | |
| 3658 | |
| 3659 | |
| 3660 // See frame_sparc.hpp for monitor block layout. | |
| 3661 // Monitor elements are dynamically allocated by growing stack as needed. | |
| 3662 | |
| 3663 void TemplateTable::monitorenter() { | |
| 3664 transition(atos, vtos); | |
| 3665 __ verify_oop(Otos_i); | |
| 3666 // Try to acquire a lock on the object | |
| 3667 // Repeat until succeeded (i.e., until | |
| 3668 // monitorenter returns true). | |
| 3669 | |
| 3670 { Label ok; | |
| 3671 __ tst(Otos_i); | |
| 3672 __ throw_if_not_1_x( Assembler::notZero, ok); | |
| 3673 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
| 3674 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3675 } | |
| 3676 | |
| 3677 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
| 3678 | |
| 3679 // find a free slot in the monitor block | |
| 3680 | |
| 3681 | |
| 3682 // initialize entry pointer | |
| 3683 __ clr(O1); // points to free slot or NULL | |
| 3684 | |
| 3685 { | |
| 3686 Label entry, loop, exit; | |
| 3687 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3688 __ ba( entry ); |
| 0 | 3689 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
| 3690 | |
| 3691 | |
| 3692 __ bind( loop ); | |
| 3693 | |
| 3694 __ verify_oop(O4); // verify each monitor's oop | |
| 3695 __ tst(O4); // is this entry unused? | |
| 3696 if (VM_Version::v9_instructions_work()) | |
| 3697 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
| 3698 else { | |
| 3699 Label L; | |
| 3700 __ br( Assembler::zero, true, Assembler::pn, L ); | |
| 3701 __ delayed()->mov(O3, O1); // rememeber this one if match | |
| 3702 __ bind(L); | |
| 3703 } | |
| 3704 | |
| 3705 __ cmp(O4, O0); // check if current entry is for same object | |
| 3706 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
| 3707 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
| 3708 | |
| 3709 __ bind( entry ); | |
| 3710 | |
| 3711 __ cmp( O3, O2 ); | |
| 3712 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3713 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3714 | |
| 3715 __ bind( exit ); | |
| 3716 } | |
| 3717 | |
| 3718 { Label allocated; | |
| 3719 | |
| 3720 // found free slot? | |
| 3839 | 3721 __ br_notnull_short(O1, Assembler::pn, allocated); |
| 0 | 3722 |
| 3723 __ add_monitor_to_stack( false, O2, O3 ); | |
| 3724 __ mov(Lmonitors, O1); | |
| 3725 | |
| 3726 __ bind(allocated); | |
| 3727 } | |
| 3728 | |
| 3729 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3730 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3731 __ inc(Lbcp); | |
| 3732 | |
| 3733 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
| 3734 __ lock_object(O1, O0); | |
| 3735 | |
| 3736 // check if there's enough space on the stack for the monitors after locking | |
| 3737 __ generate_stack_overflow_check(0); | |
| 3738 | |
| 3739 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3740 __ dispatch_next(vtos); | |
| 3741 } | |
| 3742 | |
| 3743 | |
| 3744 void TemplateTable::monitorexit() { | |
| 3745 transition(atos, vtos); | |
| 3746 __ verify_oop(Otos_i); | |
| 3747 __ tst(Otos_i); | |
| 3748 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
| 3749 | |
| 3750 assert(O0 == Otos_i, "just checking"); | |
| 3751 | |
| 3752 { Label entry, loop, found; | |
| 3753 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3754 __ ba(entry); |
| 0 | 3755 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
| 3756 // By using a local it survives the call to the C routine. | |
| 3757 __ delayed()->mov( Lmonitors, Lscratch ); | |
| 3758 | |
| 3759 __ bind( loop ); | |
| 3760 | |
| 3761 __ verify_oop(O4); // verify each monitor's oop | |
| 3762 __ cmp(O4, O0); // check if current entry is for desired object | |
| 3763 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
| 3764 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
| 3765 | |
| 3766 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
| 3767 | |
| 3768 __ bind( entry ); | |
| 3769 | |
| 3770 __ cmp( Lscratch, O2 ); | |
| 3771 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3772 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3773 | |
| 3774 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3775 __ should_not_reach_here(); | |
| 3776 | |
| 3777 __ bind(found); | |
| 3778 } | |
| 3779 __ unlock_object(O1); | |
| 3780 } | |
| 3781 | |
| 3782 | |
| 3783 //---------------------------------------------------------------------------------------------------- | |
| 3784 // Wide instructions | |
| 3785 | |
| 3786 void TemplateTable::wide() { | |
| 3787 transition(vtos, vtos); | |
| 3788 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
| 3789 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
| 727 | 3790 AddressLiteral ep(Interpreter::_wentry_point); |
| 3791 __ set(ep, G4_scratch); | |
| 3792 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
| 0 | 3793 __ jmp(G3_scratch, G0); |
| 3794 __ delayed()->nop(); | |
| 3795 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
| 3796 } | |
| 3797 | |
| 3798 | |
| 3799 //---------------------------------------------------------------------------------------------------- | |
| 3800 // Multi arrays | |
| 3801 | |
| 3802 void TemplateTable::multianewarray() { | |
| 3803 transition(vtos, atos); | |
| 3804 // put ndims * wordSize into Lscratch | |
| 3805 __ ldub( Lbcp, 3, Lscratch); | |
| 1506 | 3806 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
| 0 | 3807 // Lesp points past last_dim, so set to O1 to first_dim address |
| 3808 __ add( Lesp, Lscratch, O1); | |
| 3809 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
| 3810 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
| 3811 } | |
| 3812 #endif /* !CC_INTERP */ |