Mercurial > hg > truffle
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 3892:baf763f388e6
7059037: Use BIS for zeroing on T4
Summary: Use BIS for zeroing new allocated big (2Kb and more) objects and arrays.
Reviewed-by: never, twisti, ysr
| author | kvn |
|---|---|
| date | Fri, 26 Aug 2011 08:52:22 -0700 |
| parents | fdb992d83a87 |
| children | 52b5d32fbfaf 069ab3f976d3 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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" | |
| 30 #include "oops/methodDataOop.hpp" | |
| 31 #include "oops/objArrayKlass.hpp" | |
| 32 #include "oops/oop.inline.hpp" | |
| 33 #include "prims/methodHandles.hpp" | |
| 34 #include "runtime/sharedRuntime.hpp" | |
| 35 #include "runtime/stubRoutines.hpp" | |
| 36 #include "runtime/synchronizer.hpp" | |
| 0 | 37 |
| 38 #ifndef CC_INTERP | |
| 39 #define __ _masm-> | |
| 40 | |
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41 // Misc helpers |
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42 |
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43 // Do an oop store like *(base + index + offset) = val |
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44 // index can be noreg, |
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45 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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46 Register base, |
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47 Register index, |
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48 int offset, |
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49 Register val, |
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50 Register tmp, |
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51 BarrierSet::Name barrier, |
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52 bool precise) { |
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53 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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54 assert(index == noreg || offset == 0, "only one offset"); |
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55 switch (barrier) { |
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56 #ifndef SERIALGC |
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57 case BarrierSet::G1SATBCT: |
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58 case BarrierSet::G1SATBCTLogging: |
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59 { |
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60 // Load and record the previous value. |
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61 __ g1_write_barrier_pre(base, index, offset, |
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62 noreg /* pre_val */, |
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63 tmp, true /*preserve_o_regs*/); |
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64 |
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65 if (index == noreg ) { |
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66 assert(Assembler::is_simm13(offset), "fix this code"); |
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67 __ store_heap_oop(val, base, offset); |
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68 } else { |
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69 __ store_heap_oop(val, base, index); |
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70 } |
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71 |
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72 // No need for post barrier if storing NULL |
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73 if (val != G0) { |
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74 if (precise) { |
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75 if (index == noreg) { |
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76 __ add(base, offset, base); |
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77 } else { |
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78 __ add(base, index, base); |
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79 } |
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80 } |
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81 __ g1_write_barrier_post(base, val, tmp); |
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82 } |
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83 } |
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84 break; |
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85 #endif // SERIALGC |
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86 case BarrierSet::CardTableModRef: |
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87 case BarrierSet::CardTableExtension: |
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88 { |
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89 if (index == noreg ) { |
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90 assert(Assembler::is_simm13(offset), "fix this code"); |
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91 __ store_heap_oop(val, base, offset); |
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92 } else { |
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93 __ store_heap_oop(val, base, index); |
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94 } |
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95 // No need for post barrier if storing NULL |
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96 if (val != G0) { |
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97 if (precise) { |
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98 if (index == noreg) { |
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99 __ add(base, offset, base); |
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100 } else { |
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101 __ add(base, index, base); |
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102 } |
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103 } |
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104 __ card_write_barrier_post(base, val, tmp); |
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105 } |
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106 } |
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107 break; |
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108 case BarrierSet::ModRef: |
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109 case BarrierSet::Other: |
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110 ShouldNotReachHere(); |
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111 break; |
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112 default : |
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113 ShouldNotReachHere(); |
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114 |
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115 } |
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116 } |
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117 |
| 0 | 118 |
| 119 //---------------------------------------------------------------------------------------------------- | |
| 120 // Platform-dependent initialization | |
| 121 | |
| 122 void TemplateTable::pd_initialize() { | |
| 123 // (none) | |
| 124 } | |
| 125 | |
| 126 | |
| 127 //---------------------------------------------------------------------------------------------------- | |
| 128 // Condition conversion | |
| 129 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
| 130 switch (cc) { | |
| 131 case TemplateTable::equal : return Assembler::notEqual; | |
| 132 case TemplateTable::not_equal : return Assembler::equal; | |
| 133 case TemplateTable::less : return Assembler::greaterEqual; | |
| 134 case TemplateTable::less_equal : return Assembler::greater; | |
| 135 case TemplateTable::greater : return Assembler::lessEqual; | |
| 136 case TemplateTable::greater_equal: return Assembler::less; | |
| 137 } | |
| 138 ShouldNotReachHere(); | |
| 139 return Assembler::zero; | |
| 140 } | |
| 141 | |
| 142 //---------------------------------------------------------------------------------------------------- | |
| 143 // Miscelaneous helper routines | |
| 144 | |
| 145 | |
| 146 Address TemplateTable::at_bcp(int offset) { | |
| 147 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 727 | 148 return Address(Lbcp, offset); |
| 0 | 149 } |
| 150 | |
| 151 | |
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152 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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153 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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154 int byte_no) { |
| 0 | 155 // With sharing on, may need to test methodOop flag. |
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156 if (!RewriteBytecodes) return; |
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157 Label L_patch_done; |
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158 |
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159 switch (bc) { |
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160 case Bytecodes::_fast_aputfield: |
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161 case Bytecodes::_fast_bputfield: |
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162 case Bytecodes::_fast_cputfield: |
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163 case Bytecodes::_fast_dputfield: |
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164 case Bytecodes::_fast_fputfield: |
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165 case Bytecodes::_fast_iputfield: |
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166 case Bytecodes::_fast_lputfield: |
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167 case Bytecodes::_fast_sputfield: |
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168 { |
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169 // We skip bytecode quickening for putfield instructions when |
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170 // the put_code written to the constant pool cache is zero. |
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171 // This is required so that every execution of this instruction |
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172 // calls out to InterpreterRuntime::resolve_get_put to do |
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173 // additional, required work. |
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174 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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175 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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176 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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177 __ set(bc, bc_reg); |
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178 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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179 } |
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180 break; |
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181 default: |
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182 assert(byte_no == -1, "sanity"); |
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183 if (load_bc_into_bc_reg) { |
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184 __ set(bc, bc_reg); |
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185 } |
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186 } |
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187 |
| 0 | 188 if (JvmtiExport::can_post_breakpoint()) { |
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189 Label L_fast_patch; |
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190 __ ldub(at_bcp(0), temp_reg); |
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191 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
| 0 | 192 // perform the quickening, slowly, in the bowels of the breakpoint table |
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193 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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194 __ ba_short(L_patch_done); |
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195 __ bind(L_fast_patch); |
| 0 | 196 } |
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197 |
| 0 | 198 #ifdef ASSERT |
| 199 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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200 Label L_okay; |
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201 __ ldub(at_bcp(0), temp_reg); |
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202 __ cmp(temp_reg, orig_bytecode); |
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203 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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204 __ delayed()->cmp(temp_reg, bc_reg); |
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205 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
| 0 | 206 __ delayed()->nop(); |
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207 __ stop("patching the wrong bytecode"); |
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208 __ bind(L_okay); |
| 0 | 209 #endif |
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210 |
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211 // patch bytecode |
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212 __ stb(bc_reg, at_bcp(0)); |
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213 __ bind(L_patch_done); |
| 0 | 214 } |
| 215 | |
| 216 //---------------------------------------------------------------------------------------------------- | |
| 217 // Individual instructions | |
| 218 | |
| 219 void TemplateTable::nop() { | |
| 220 transition(vtos, vtos); | |
| 221 // nothing to do | |
| 222 } | |
| 223 | |
| 224 void TemplateTable::shouldnotreachhere() { | |
| 225 transition(vtos, vtos); | |
| 226 __ stop("shouldnotreachhere bytecode"); | |
| 227 } | |
| 228 | |
| 229 void TemplateTable::aconst_null() { | |
| 230 transition(vtos, atos); | |
| 231 __ clr(Otos_i); | |
| 232 } | |
| 233 | |
| 234 | |
| 235 void TemplateTable::iconst(int value) { | |
| 236 transition(vtos, itos); | |
| 237 __ set(value, Otos_i); | |
| 238 } | |
| 239 | |
| 240 | |
| 241 void TemplateTable::lconst(int value) { | |
| 242 transition(vtos, ltos); | |
| 243 assert(value >= 0, "check this code"); | |
| 244 #ifdef _LP64 | |
| 245 __ set(value, Otos_l); | |
| 246 #else | |
| 247 __ set(value, Otos_l2); | |
| 248 __ clr( Otos_l1); | |
| 249 #endif | |
| 250 } | |
| 251 | |
| 252 | |
| 253 void TemplateTable::fconst(int value) { | |
| 254 transition(vtos, ftos); | |
| 255 static float zero = 0.0, one = 1.0, two = 2.0; | |
| 256 float* p; | |
| 257 switch( value ) { | |
| 258 default: ShouldNotReachHere(); | |
| 259 case 0: p = &zero; break; | |
| 260 case 1: p = &one; break; | |
| 261 case 2: p = &two; break; | |
| 262 } | |
| 727 | 263 AddressLiteral a(p); |
| 264 __ sethi(a, G3_scratch); | |
| 265 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
| 0 | 266 } |
| 267 | |
| 268 | |
| 269 void TemplateTable::dconst(int value) { | |
| 270 transition(vtos, dtos); | |
| 271 static double zero = 0.0, one = 1.0; | |
| 272 double* p; | |
| 273 switch( value ) { | |
| 274 default: ShouldNotReachHere(); | |
| 275 case 0: p = &zero; break; | |
| 276 case 1: p = &one; break; | |
| 277 } | |
| 727 | 278 AddressLiteral a(p); |
| 279 __ sethi(a, G3_scratch); | |
| 280 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
| 0 | 281 } |
| 282 | |
| 283 | |
| 284 // %%%%% Should factore most snippet templates across platforms | |
| 285 | |
| 286 void TemplateTable::bipush() { | |
| 287 transition(vtos, itos); | |
| 288 __ ldsb( at_bcp(1), Otos_i ); | |
| 289 } | |
| 290 | |
| 291 void TemplateTable::sipush() { | |
| 292 transition(vtos, itos); | |
| 293 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
| 294 } | |
| 295 | |
| 296 void TemplateTable::ldc(bool wide) { | |
| 297 transition(vtos, vtos); | |
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298 Label call_ldc, notInt, isString, notString, notClass, exit; |
| 0 | 299 |
| 300 if (wide) { | |
| 301 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 302 } else { | |
| 303 __ ldub(Lbcp, 1, O1); | |
| 304 } | |
| 305 __ get_cpool_and_tags(O0, O2); | |
| 306 | |
| 307 const int base_offset = constantPoolOopDesc::header_size() * wordSize; | |
| 308 const int tags_offset = typeArrayOopDesc::header_size(T_BYTE) * wordSize; | |
| 309 | |
| 310 // get type from tags | |
| 311 __ add(O2, tags_offset, O2); | |
| 312 __ ldub(O2, O1, O2); | |
| 3839 | 313 // unresolved string? If so, must resolve |
| 314 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedString, Assembler::equal, Assembler::pt, call_ldc); | |
| 315 | |
| 316 // unresolved class? If so, must resolve | |
| 317 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
| 318 | |
| 319 // unresolved class in error state | |
| 320 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
| 0 | 321 |
| 322 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
| 323 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
| 324 __ delayed()->add(O0, base_offset, O0); | |
| 325 | |
| 326 __ bind(call_ldc); | |
| 327 __ set(wide, O1); | |
| 328 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
| 329 __ push(atos); | |
| 3839 | 330 __ ba_short(exit); |
| 0 | 331 |
| 332 __ bind(notClass); | |
| 333 // __ add(O0, base_offset, O0); | |
| 334 __ sll(O1, LogBytesPerWord, O1); | |
| 335 __ cmp(O2, JVM_CONSTANT_Integer); | |
| 336 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
| 337 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
| 338 __ ld(O0, O1, Otos_i); | |
| 339 __ push(itos); | |
| 3839 | 340 __ ba_short(exit); |
| 0 | 341 |
| 342 __ bind(notInt); | |
| 343 // __ cmp(O2, JVM_CONSTANT_String); | |
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344 __ brx(Assembler::equal, true, Assembler::pt, isString); |
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345 __ delayed()->cmp(O2, JVM_CONSTANT_Object); |
| 0 | 346 __ brx(Assembler::notEqual, true, Assembler::pt, notString); |
| 347 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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348 __ bind(isString); |
| 0 | 349 __ ld_ptr(O0, O1, Otos_i); |
| 350 __ verify_oop(Otos_i); | |
| 351 __ push(atos); | |
| 3839 | 352 __ ba_short(exit); |
| 0 | 353 |
| 354 __ bind(notString); | |
| 355 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
| 356 __ push(ftos); | |
| 357 | |
| 358 __ bind(exit); | |
| 359 } | |
| 360 | |
| 1602 | 361 // Fast path for caching oop constants. |
| 362 // %%% We should use this to handle Class and String constants also. | |
| 363 // %%% It will simplify the ldc/primitive path considerably. | |
| 364 void TemplateTable::fast_aldc(bool wide) { | |
| 365 transition(vtos, atos); | |
| 366 | |
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367 if (!EnableInvokeDynamic) { |
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368 // We should not encounter this bytecode if !EnableInvokeDynamic. |
| 1602 | 369 // The verifier will stop it. However, if we get past the verifier, |
| 370 // this will stop the thread in a reasonable way, without crashing the JVM. | |
| 371 __ call_VM(noreg, CAST_FROM_FN_PTR(address, | |
| 372 InterpreterRuntime::throw_IncompatibleClassChangeError)); | |
| 373 // the call_VM checks for exception, so we should never return here. | |
| 374 __ should_not_reach_here(); | |
| 375 return; | |
| 376 } | |
| 377 | |
| 378 Register Rcache = G3_scratch; | |
| 379 Register Rscratch = G4_scratch; | |
| 380 | |
| 381 resolve_cache_and_index(f1_oop, Otos_i, Rcache, Rscratch, wide ? sizeof(u2) : sizeof(u1)); | |
| 382 | |
| 383 __ verify_oop(Otos_i); | |
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384 |
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385 Label L_done; |
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386 const Register Rcon_klass = G3_scratch; // same as Rcache |
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387 const Register Rarray_klass = G4_scratch; // same as Rscratch |
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388 __ load_klass(Otos_i, Rcon_klass); |
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389 AddressLiteral array_klass_addr((address)Universe::systemObjArrayKlassObj_addr()); |
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390 __ load_contents(array_klass_addr, Rarray_klass); |
| 3839 | 391 __ cmp_and_brx_short(Rarray_klass, Rcon_klass, Assembler::notEqual, Assembler::pt, L_done); |
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392 __ ld(Address(Otos_i, arrayOopDesc::length_offset_in_bytes()), Rcon_klass); |
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393 __ tst(Rcon_klass); |
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394 __ brx(Assembler::zero, true, Assembler::pt, L_done); |
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395 __ delayed()->clr(Otos_i); // executed only if branch is taken |
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396 |
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397 // Load the exception from the system-array which wraps it: |
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398 __ load_heap_oop(Otos_i, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
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399 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); |
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400 |
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401 __ bind(L_done); |
| 1602 | 402 } |
| 403 | |
| 0 | 404 void TemplateTable::ldc2_w() { |
| 405 transition(vtos, vtos); | |
| 406 Label retry, resolved, Long, exit; | |
| 407 | |
| 408 __ bind(retry); | |
| 409 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 410 __ get_cpool_and_tags(O0, O2); | |
| 411 | |
| 412 const int base_offset = constantPoolOopDesc::header_size() * wordSize; | |
| 413 const int tags_offset = typeArrayOopDesc::header_size(T_BYTE) * wordSize; | |
| 414 // get type from tags | |
| 415 __ add(O2, tags_offset, O2); | |
| 416 __ ldub(O2, O1, O2); | |
| 417 | |
| 418 __ sll(O1, LogBytesPerWord, O1); | |
| 419 __ add(O0, O1, G3_scratch); | |
| 420 | |
| 3839 | 421 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
| 0 | 422 // A double can be placed at word-aligned locations in the constant pool. |
| 423 // Check out Conversions.java for an example. | |
| 424 // Also constantPoolOopDesc::header_size() is 20, which makes it very difficult | |
| 425 // to double-align double on the constant pool. SG, 11/7/97 | |
| 426 #ifdef _LP64 | |
| 427 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
| 428 #else | |
| 429 FloatRegister f = Ftos_d; | |
| 430 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
| 431 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
| 432 f->successor()); | |
| 433 #endif | |
| 434 __ push(dtos); | |
| 3839 | 435 __ ba_short(exit); |
| 0 | 436 |
| 437 __ bind(Long); | |
| 438 #ifdef _LP64 | |
| 439 __ ldx(G3_scratch, base_offset, Otos_l); | |
| 440 #else | |
| 441 __ ld(G3_scratch, base_offset, Otos_l); | |
| 442 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
| 443 #endif | |
| 444 __ push(ltos); | |
| 445 | |
| 446 __ bind(exit); | |
| 447 } | |
| 448 | |
| 449 | |
| 450 void TemplateTable::locals_index(Register reg, int offset) { | |
| 451 __ ldub( at_bcp(offset), reg ); | |
| 452 } | |
| 453 | |
| 454 | |
| 455 void TemplateTable::locals_index_wide(Register reg) { | |
| 456 // offset is 2, not 1, because Lbcp points to wide prefix code | |
| 457 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
| 458 } | |
| 459 | |
| 460 void TemplateTable::iload() { | |
| 461 transition(vtos, itos); | |
| 462 // Rewrite iload,iload pair into fast_iload2 | |
| 463 // iload,caload pair into fast_icaload | |
| 464 if (RewriteFrequentPairs) { | |
| 465 Label rewrite, done; | |
| 466 | |
| 467 // get next byte | |
| 468 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
| 469 | |
| 470 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 471 // last two iloads in a pair. Comparing against fast_iload means that | |
| 472 // the next bytecode is neither an iload or a caload, and therefore | |
| 473 // an iload pair. | |
| 3839 | 474 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
| 0 | 475 |
| 476 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
| 477 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 478 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
| 479 | |
| 480 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
| 481 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 482 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
| 483 | |
| 484 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
| 485 // rewrite | |
| 486 // G4_scratch: fast bytecode | |
| 487 __ bind(rewrite); | |
| 488 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
| 489 __ bind(done); | |
| 490 } | |
| 491 | |
| 492 // Get the local value into tos | |
| 493 locals_index(G3_scratch); | |
| 494 __ access_local_int( G3_scratch, Otos_i ); | |
| 495 } | |
| 496 | |
| 497 void TemplateTable::fast_iload2() { | |
| 498 transition(vtos, itos); | |
| 499 locals_index(G3_scratch); | |
| 500 __ access_local_int( G3_scratch, Otos_i ); | |
| 501 __ push_i(); | |
| 502 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
| 503 __ access_local_int( G3_scratch, Otos_i ); | |
| 504 } | |
| 505 | |
| 506 void TemplateTable::fast_iload() { | |
| 507 transition(vtos, itos); | |
| 508 locals_index(G3_scratch); | |
| 509 __ access_local_int( G3_scratch, Otos_i ); | |
| 510 } | |
| 511 | |
| 512 void TemplateTable::lload() { | |
| 513 transition(vtos, ltos); | |
| 514 locals_index(G3_scratch); | |
| 515 __ access_local_long( G3_scratch, Otos_l ); | |
| 516 } | |
| 517 | |
| 518 | |
| 519 void TemplateTable::fload() { | |
| 520 transition(vtos, ftos); | |
| 521 locals_index(G3_scratch); | |
| 522 __ access_local_float( G3_scratch, Ftos_f ); | |
| 523 } | |
| 524 | |
| 525 | |
| 526 void TemplateTable::dload() { | |
| 527 transition(vtos, dtos); | |
| 528 locals_index(G3_scratch); | |
| 529 __ access_local_double( G3_scratch, Ftos_d ); | |
| 530 } | |
| 531 | |
| 532 | |
| 533 void TemplateTable::aload() { | |
| 534 transition(vtos, atos); | |
| 535 locals_index(G3_scratch); | |
| 536 __ access_local_ptr( G3_scratch, Otos_i); | |
| 537 } | |
| 538 | |
| 539 | |
| 540 void TemplateTable::wide_iload() { | |
| 541 transition(vtos, itos); | |
| 542 locals_index_wide(G3_scratch); | |
| 543 __ access_local_int( G3_scratch, Otos_i ); | |
| 544 } | |
| 545 | |
| 546 | |
| 547 void TemplateTable::wide_lload() { | |
| 548 transition(vtos, ltos); | |
| 549 locals_index_wide(G3_scratch); | |
| 550 __ access_local_long( G3_scratch, Otos_l ); | |
| 551 } | |
| 552 | |
| 553 | |
| 554 void TemplateTable::wide_fload() { | |
| 555 transition(vtos, ftos); | |
| 556 locals_index_wide(G3_scratch); | |
| 557 __ access_local_float( G3_scratch, Ftos_f ); | |
| 558 } | |
| 559 | |
| 560 | |
| 561 void TemplateTable::wide_dload() { | |
| 562 transition(vtos, dtos); | |
| 563 locals_index_wide(G3_scratch); | |
| 564 __ access_local_double( G3_scratch, Ftos_d ); | |
| 565 } | |
| 566 | |
| 567 | |
| 568 void TemplateTable::wide_aload() { | |
| 569 transition(vtos, atos); | |
| 570 locals_index_wide(G3_scratch); | |
| 571 __ access_local_ptr( G3_scratch, Otos_i ); | |
| 572 __ verify_oop(Otos_i); | |
| 573 } | |
| 574 | |
| 575 | |
| 576 void TemplateTable::iaload() { | |
| 577 transition(itos, itos); | |
| 578 // Otos_i: index | |
| 579 // tos: array | |
| 580 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 581 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
| 582 } | |
| 583 | |
| 584 | |
| 585 void TemplateTable::laload() { | |
| 586 transition(itos, ltos); | |
| 587 // Otos_i: index | |
| 588 // O2: array | |
| 589 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 590 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
| 591 } | |
| 592 | |
| 593 | |
| 594 void TemplateTable::faload() { | |
| 595 transition(itos, ftos); | |
| 596 // Otos_i: index | |
| 597 // O2: array | |
| 598 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 599 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
| 600 } | |
| 601 | |
| 602 | |
| 603 void TemplateTable::daload() { | |
| 604 transition(itos, dtos); | |
| 605 // Otos_i: index | |
| 606 // O2: array | |
| 607 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 608 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
| 609 } | |
| 610 | |
| 611 | |
| 612 void TemplateTable::aaload() { | |
| 613 transition(itos, atos); | |
| 614 // Otos_i: index | |
| 615 // tos: array | |
|
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616 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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617 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
| 0 | 618 __ verify_oop(Otos_i); |
| 619 } | |
| 620 | |
| 621 | |
| 622 void TemplateTable::baload() { | |
| 623 transition(itos, itos); | |
| 624 // Otos_i: index | |
| 625 // tos: array | |
| 626 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
| 627 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
| 628 } | |
| 629 | |
| 630 | |
| 631 void TemplateTable::caload() { | |
| 632 transition(itos, itos); | |
| 633 // Otos_i: index | |
| 634 // tos: array | |
| 635 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 636 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 637 } | |
| 638 | |
| 639 void TemplateTable::fast_icaload() { | |
| 640 transition(vtos, itos); | |
| 641 // Otos_i: index | |
| 642 // tos: array | |
| 643 locals_index(G3_scratch); | |
| 644 __ access_local_int( G3_scratch, Otos_i ); | |
| 645 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 646 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 647 } | |
| 648 | |
| 649 | |
| 650 void TemplateTable::saload() { | |
| 651 transition(itos, itos); | |
| 652 // Otos_i: index | |
| 653 // tos: array | |
| 654 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 655 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
| 656 } | |
| 657 | |
| 658 | |
| 659 void TemplateTable::iload(int n) { | |
| 660 transition(vtos, itos); | |
| 661 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 662 } | |
| 663 | |
| 664 | |
| 665 void TemplateTable::lload(int n) { | |
| 666 transition(vtos, ltos); | |
| 667 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
| 668 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
| 669 } | |
| 670 | |
| 671 | |
| 672 void TemplateTable::fload(int n) { | |
| 673 transition(vtos, ftos); | |
| 674 assert(n < Argument::n_register_parameters, "would need more code"); | |
| 675 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
| 676 } | |
| 677 | |
| 678 | |
| 679 void TemplateTable::dload(int n) { | |
| 680 transition(vtos, dtos); | |
| 681 FloatRegister dst = Ftos_d; | |
| 682 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
| 683 } | |
| 684 | |
| 685 | |
| 686 void TemplateTable::aload(int n) { | |
| 687 transition(vtos, atos); | |
| 688 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 689 } | |
| 690 | |
| 691 | |
| 692 void TemplateTable::aload_0() { | |
| 693 transition(vtos, atos); | |
| 694 | |
| 695 // According to bytecode histograms, the pairs: | |
| 696 // | |
| 697 // _aload_0, _fast_igetfield (itos) | |
| 698 // _aload_0, _fast_agetfield (atos) | |
| 699 // _aload_0, _fast_fgetfield (ftos) | |
| 700 // | |
| 701 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 702 // bytecode checks the next bytecode and then rewrites the current | |
| 703 // bytecode into a pair bytecode; otherwise it rewrites the current | |
| 704 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 705 // | |
| 706 if (RewriteFrequentPairs) { | |
| 707 Label rewrite, done; | |
| 708 | |
| 709 // get next byte | |
| 710 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
| 711 | |
| 712 // do actual aload_0 | |
| 713 aload(0); | |
| 714 | |
| 715 // if _getfield then wait with rewrite | |
| 3839 | 716 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
| 0 | 717 |
| 718 // if _igetfield then rewrite to _fast_iaccess_0 | |
| 719 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 720 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
| 721 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 722 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
| 723 | |
| 724 // if _agetfield then rewrite to _fast_aaccess_0 | |
| 725 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 726 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
| 727 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 728 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
| 729 | |
| 730 // if _fgetfield then rewrite to _fast_faccess_0 | |
| 731 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 732 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
| 733 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 734 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
| 735 | |
| 736 // else rewrite to _fast_aload0 | |
| 737 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 738 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
| 739 | |
| 740 // rewrite | |
| 741 // G4_scratch: fast bytecode | |
| 742 __ bind(rewrite); | |
| 743 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
| 744 __ bind(done); | |
| 745 } else { | |
| 746 aload(0); | |
| 747 } | |
| 748 } | |
| 749 | |
| 750 | |
| 751 void TemplateTable::istore() { | |
| 752 transition(itos, vtos); | |
| 753 locals_index(G3_scratch); | |
| 754 __ store_local_int( G3_scratch, Otos_i ); | |
| 755 } | |
| 756 | |
| 757 | |
| 758 void TemplateTable::lstore() { | |
| 759 transition(ltos, vtos); | |
| 760 locals_index(G3_scratch); | |
| 761 __ store_local_long( G3_scratch, Otos_l ); | |
| 762 } | |
| 763 | |
| 764 | |
| 765 void TemplateTable::fstore() { | |
| 766 transition(ftos, vtos); | |
| 767 locals_index(G3_scratch); | |
| 768 __ store_local_float( G3_scratch, Ftos_f ); | |
| 769 } | |
| 770 | |
| 771 | |
| 772 void TemplateTable::dstore() { | |
| 773 transition(dtos, vtos); | |
| 774 locals_index(G3_scratch); | |
| 775 __ store_local_double( G3_scratch, Ftos_d ); | |
| 776 } | |
| 777 | |
| 778 | |
| 779 void TemplateTable::astore() { | |
| 780 transition(vtos, vtos); | |
| 1506 | 781 __ load_ptr(0, Otos_i); |
| 782 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 783 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 784 locals_index(G3_scratch); | |
| 1506 | 785 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 786 } |
| 787 | |
| 788 | |
| 789 void TemplateTable::wide_istore() { | |
| 790 transition(vtos, vtos); | |
| 791 __ pop_i(); | |
| 792 locals_index_wide(G3_scratch); | |
| 793 __ store_local_int( G3_scratch, Otos_i ); | |
| 794 } | |
| 795 | |
| 796 | |
| 797 void TemplateTable::wide_lstore() { | |
| 798 transition(vtos, vtos); | |
| 799 __ pop_l(); | |
| 800 locals_index_wide(G3_scratch); | |
| 801 __ store_local_long( G3_scratch, Otos_l ); | |
| 802 } | |
| 803 | |
| 804 | |
| 805 void TemplateTable::wide_fstore() { | |
| 806 transition(vtos, vtos); | |
| 807 __ pop_f(); | |
| 808 locals_index_wide(G3_scratch); | |
| 809 __ store_local_float( G3_scratch, Ftos_f ); | |
| 810 } | |
| 811 | |
| 812 | |
| 813 void TemplateTable::wide_dstore() { | |
| 814 transition(vtos, vtos); | |
| 815 __ pop_d(); | |
| 816 locals_index_wide(G3_scratch); | |
| 817 __ store_local_double( G3_scratch, Ftos_d ); | |
| 818 } | |
| 819 | |
| 820 | |
| 821 void TemplateTable::wide_astore() { | |
| 822 transition(vtos, vtos); | |
| 1506 | 823 __ load_ptr(0, Otos_i); |
| 824 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 825 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 826 locals_index_wide(G3_scratch); | |
| 1506 | 827 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 828 } |
| 829 | |
| 830 | |
| 831 void TemplateTable::iastore() { | |
| 832 transition(itos, vtos); | |
| 833 __ pop_i(O2); // index | |
| 834 // Otos_i: val | |
| 835 // O3: array | |
| 836 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 837 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
| 838 } | |
| 839 | |
| 840 | |
| 841 void TemplateTable::lastore() { | |
| 842 transition(ltos, vtos); | |
| 843 __ pop_i(O2); // index | |
| 844 // Otos_l: val | |
| 845 // O3: array | |
| 846 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 847 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
| 848 } | |
| 849 | |
| 850 | |
| 851 void TemplateTable::fastore() { | |
| 852 transition(ftos, vtos); | |
| 853 __ pop_i(O2); // index | |
| 854 // Ftos_f: val | |
| 855 // O3: array | |
| 856 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 857 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
| 858 } | |
| 859 | |
| 860 | |
| 861 void TemplateTable::dastore() { | |
| 862 transition(dtos, vtos); | |
| 863 __ pop_i(O2); // index | |
| 864 // Fos_d: val | |
| 865 // O3: array | |
| 866 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 867 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
| 868 } | |
| 869 | |
| 870 | |
| 871 void TemplateTable::aastore() { | |
| 872 Label store_ok, is_null, done; | |
| 873 transition(vtos, vtos); | |
| 874 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 875 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
| 876 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
| 877 // Otos_i: val | |
| 878 // O2: index | |
| 879 // O3: array | |
| 880 __ verify_oop(Otos_i); | |
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881 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
| 0 | 882 |
| 883 // do array store check - check for NULL value first | |
| 3839 | 884 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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885 |
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886 __ load_klass(O3, O4); // get array klass |
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887 __ load_klass(Otos_i, O5); // get value klass |
| 0 | 888 |
| 889 // do fast instanceof cache test | |
| 890 | |
| 891 __ ld_ptr(O4, sizeof(oopDesc) + objArrayKlass::element_klass_offset_in_bytes(), O4); | |
| 892 | |
| 893 assert(Otos_i == O0, "just checking"); | |
| 894 | |
| 895 // Otos_i: value | |
| 896 // O1: addr - offset | |
| 897 // O2: index | |
| 898 // O3: array | |
| 899 // O4: array element klass | |
| 900 // O5: value klass | |
| 901 | |
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902 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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903 |
| 0 | 904 // Generate a fast subtype check. Branch to store_ok if no |
| 905 // failure. Throw if failure. | |
| 906 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
| 907 | |
| 908 // Not a subtype; so must throw exception | |
| 909 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
| 910 | |
| 911 // Store is OK. | |
| 912 __ bind(store_ok); | |
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913 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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914 |
| 3839 | 915 __ ba(done); |
| 1506 | 916 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 917 |
| 918 __ bind(is_null); | |
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919 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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920 |
| 0 | 921 __ profile_null_seen(G3_scratch); |
| 1506 | 922 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 923 __ bind(done); |
| 924 } | |
| 925 | |
| 926 | |
| 927 void TemplateTable::bastore() { | |
| 928 transition(itos, vtos); | |
| 929 __ pop_i(O2); // index | |
| 930 // Otos_i: val | |
| 931 // O3: array | |
| 932 __ index_check(O3, O2, 0, G3_scratch, O2); | |
| 933 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
| 934 } | |
| 935 | |
| 936 | |
| 937 void TemplateTable::castore() { | |
| 938 transition(itos, vtos); | |
| 939 __ pop_i(O2); // index | |
| 940 // Otos_i: val | |
| 941 // O3: array | |
| 942 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
| 943 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
| 944 } | |
| 945 | |
| 946 | |
| 947 void TemplateTable::sastore() { | |
| 948 // %%%%% Factor across platform | |
| 949 castore(); | |
| 950 } | |
| 951 | |
| 952 | |
| 953 void TemplateTable::istore(int n) { | |
| 954 transition(itos, vtos); | |
| 955 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 956 } | |
| 957 | |
| 958 | |
| 959 void TemplateTable::lstore(int n) { | |
| 960 transition(ltos, vtos); | |
| 961 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
| 962 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 963 | |
| 964 } | |
| 965 | |
| 966 | |
| 967 void TemplateTable::fstore(int n) { | |
| 968 transition(ftos, vtos); | |
| 969 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
| 970 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 971 } | |
| 972 | |
| 973 | |
| 974 void TemplateTable::dstore(int n) { | |
| 975 transition(dtos, vtos); | |
| 976 FloatRegister src = Ftos_d; | |
| 977 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 978 } | |
| 979 | |
| 980 | |
| 981 void TemplateTable::astore(int n) { | |
| 982 transition(vtos, vtos); | |
| 1506 | 983 __ load_ptr(0, Otos_i); |
| 984 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 985 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 1506 | 986 __ store_local_ptr(n, Otos_i); |
| 0 | 987 } |
| 988 | |
| 989 | |
| 990 void TemplateTable::pop() { | |
| 991 transition(vtos, vtos); | |
| 1506 | 992 __ inc(Lesp, Interpreter::stackElementSize); |
| 0 | 993 } |
| 994 | |
| 995 | |
| 996 void TemplateTable::pop2() { | |
| 997 transition(vtos, vtos); | |
| 1506 | 998 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
| 0 | 999 } |
| 1000 | |
| 1001 | |
| 1002 void TemplateTable::dup() { | |
| 1003 transition(vtos, vtos); | |
| 1004 // stack: ..., a | |
| 1005 // load a and tag | |
| 1506 | 1006 __ load_ptr(0, Otos_i); |
| 1007 __ push_ptr(Otos_i); | |
| 0 | 1008 // stack: ..., a, a |
| 1009 } | |
| 1010 | |
| 1011 | |
| 1012 void TemplateTable::dup_x1() { | |
| 1013 transition(vtos, vtos); | |
| 1014 // stack: ..., a, b | |
| 1506 | 1015 __ load_ptr( 1, G3_scratch); // get a |
| 1016 __ load_ptr( 0, Otos_l1); // get b | |
| 1017 __ store_ptr(1, Otos_l1); // put b | |
| 1018 __ store_ptr(0, G3_scratch); // put a - like swap | |
| 1019 __ push_ptr(Otos_l1); // push b | |
| 0 | 1020 // stack: ..., b, a, b |
| 1021 } | |
| 1022 | |
| 1023 | |
| 1024 void TemplateTable::dup_x2() { | |
| 1025 transition(vtos, vtos); | |
| 1026 // stack: ..., a, b, c | |
| 1027 // get c and push on stack, reuse registers | |
| 1506 | 1028 __ load_ptr( 0, G3_scratch); // get c |
| 1029 __ push_ptr(G3_scratch); // push c with tag | |
| 0 | 1030 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
| 1031 // (stack offsets n+1 now) | |
| 1506 | 1032 __ load_ptr( 3, Otos_l1); // get a |
| 1033 __ store_ptr(3, G3_scratch); // put c at 3 | |
| 0 | 1034 // stack: ..., c, b, c, c (a in reg) |
| 1506 | 1035 __ load_ptr( 2, G3_scratch); // get b |
| 1036 __ store_ptr(2, Otos_l1); // put a at 2 | |
| 0 | 1037 // stack: ..., c, a, c, c (b in reg) |
| 1506 | 1038 __ store_ptr(1, G3_scratch); // put b at 1 |
| 0 | 1039 // stack: ..., c, a, b, c |
| 1040 } | |
| 1041 | |
| 1042 | |
| 1043 void TemplateTable::dup2() { | |
| 1044 transition(vtos, vtos); | |
| 1506 | 1045 __ load_ptr(1, G3_scratch); // get a |
| 1046 __ load_ptr(0, Otos_l1); // get b | |
| 1047 __ push_ptr(G3_scratch); // push a | |
| 1048 __ push_ptr(Otos_l1); // push b | |
| 0 | 1049 // stack: ..., a, b, a, b |
| 1050 } | |
| 1051 | |
| 1052 | |
| 1053 void TemplateTable::dup2_x1() { | |
| 1054 transition(vtos, vtos); | |
| 1055 // stack: ..., a, b, c | |
| 1506 | 1056 __ load_ptr( 1, Lscratch); // get b |
| 1057 __ load_ptr( 2, Otos_l1); // get a | |
| 1058 __ store_ptr(2, Lscratch); // put b at a | |
| 0 | 1059 // stack: ..., b, b, c |
| 1506 | 1060 __ load_ptr( 0, G3_scratch); // get c |
| 1061 __ store_ptr(1, G3_scratch); // put c at b | |
| 0 | 1062 // stack: ..., b, c, c |
| 1506 | 1063 __ store_ptr(0, Otos_l1); // put a at c |
| 0 | 1064 // stack: ..., b, c, a |
| 1506 | 1065 __ push_ptr(Lscratch); // push b |
| 1066 __ push_ptr(G3_scratch); // push c | |
| 0 | 1067 // stack: ..., b, c, a, b, c |
| 1068 } | |
| 1069 | |
| 1070 | |
| 1071 // The spec says that these types can be a mixture of category 1 (1 word) | |
| 1072 // types and/or category 2 types (long and doubles) | |
| 1073 void TemplateTable::dup2_x2() { | |
| 1074 transition(vtos, vtos); | |
| 1075 // stack: ..., a, b, c, d | |
| 1506 | 1076 __ load_ptr( 1, Lscratch); // get c |
| 1077 __ load_ptr( 3, Otos_l1); // get a | |
| 1078 __ store_ptr(3, Lscratch); // put c at 3 | |
| 1079 __ store_ptr(1, Otos_l1); // put a at 1 | |
| 0 | 1080 // stack: ..., c, b, a, d |
| 1506 | 1081 __ load_ptr( 2, G3_scratch); // get b |
| 1082 __ load_ptr( 0, Otos_l1); // get d | |
| 1083 __ store_ptr(0, G3_scratch); // put b at 0 | |
| 1084 __ store_ptr(2, Otos_l1); // put d at 2 | |
| 0 | 1085 // stack: ..., c, d, a, b |
| 1506 | 1086 __ push_ptr(Lscratch); // push c |
| 1087 __ push_ptr(Otos_l1); // push d | |
| 0 | 1088 // stack: ..., c, d, a, b, c, d |
| 1089 } | |
| 1090 | |
| 1091 | |
| 1092 void TemplateTable::swap() { | |
| 1093 transition(vtos, vtos); | |
| 1094 // stack: ..., a, b | |
| 1506 | 1095 __ load_ptr( 1, G3_scratch); // get a |
| 1096 __ load_ptr( 0, Otos_l1); // get b | |
| 1097 __ store_ptr(0, G3_scratch); // put b | |
| 1098 __ store_ptr(1, Otos_l1); // put a | |
| 0 | 1099 // stack: ..., b, a |
| 1100 } | |
| 1101 | |
| 1102 | |
| 1103 void TemplateTable::iop2(Operation op) { | |
| 1104 transition(itos, itos); | |
| 1105 __ pop_i(O1); | |
| 1106 switch (op) { | |
| 1107 case add: __ add(O1, Otos_i, Otos_i); break; | |
| 1108 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
| 1109 // %%%%% Mul may not exist: better to call .mul? | |
| 1110 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
| 1506 | 1111 case _and: __ and3(O1, Otos_i, Otos_i); break; |
| 1112 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
| 1113 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
| 0 | 1114 case shl: __ sll(O1, Otos_i, Otos_i); break; |
| 1115 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
| 1116 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
| 1117 default: ShouldNotReachHere(); | |
| 1118 } | |
| 1119 } | |
| 1120 | |
| 1121 | |
| 1122 void TemplateTable::lop2(Operation op) { | |
| 1123 transition(ltos, ltos); | |
| 1124 __ pop_l(O2); | |
| 1125 switch (op) { | |
| 1126 #ifdef _LP64 | |
| 1506 | 1127 case add: __ add(O2, Otos_l, Otos_l); break; |
| 1128 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
| 1129 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
| 1130 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
| 1131 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
| 0 | 1132 #else |
| 1133 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
| 1134 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
| 1506 | 1135 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
| 1136 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
| 1137 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
| 0 | 1138 #endif |
| 1139 default: ShouldNotReachHere(); | |
| 1140 } | |
| 1141 } | |
| 1142 | |
| 1143 | |
| 1144 void TemplateTable::idiv() { | |
| 1145 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
| 1146 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
| 1147 | |
| 1148 transition(itos, itos); | |
| 1149 __ pop_i(O1); // get 1st op | |
| 1150 | |
| 1151 // Y contains upper 32 bits of result, set it to 0 or all ones | |
| 1152 __ wry(G0); | |
| 1153 __ mov(~0, G3_scratch); | |
| 1154 | |
| 1155 __ tst(O1); | |
| 1156 Label neg; | |
| 1157 __ br(Assembler::negative, true, Assembler::pn, neg); | |
| 1158 __ delayed()->wry(G3_scratch); | |
| 1159 __ bind(neg); | |
| 1160 | |
| 1161 Label ok; | |
| 1162 __ tst(Otos_i); | |
| 1163 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
| 1164 | |
| 1165 const int min_int = 0x80000000; | |
| 1166 Label regular; | |
| 1167 __ cmp(Otos_i, -1); | |
| 1168 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
| 1169 #ifdef _LP64 | |
| 1170 // Don't put set in delay slot | |
| 1171 // Set will turn into multiple instructions in 64 bit mode | |
| 1172 __ delayed()->nop(); | |
| 1173 __ set(min_int, G4_scratch); | |
| 1174 #else | |
| 1175 __ delayed()->set(min_int, G4_scratch); | |
| 1176 #endif | |
| 1177 Label done; | |
| 1178 __ cmp(O1, G4_scratch); | |
| 1179 __ br(Assembler::equal, true, Assembler::pt, done); | |
| 1180 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
| 1181 | |
| 1182 __ bind(regular); | |
| 1183 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
| 1184 __ bind(done); | |
| 1185 } | |
| 1186 | |
| 1187 | |
| 1188 void TemplateTable::irem() { | |
| 1189 transition(itos, itos); | |
| 1190 __ mov(Otos_i, O2); // save divisor | |
| 1191 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
| 1192 __ smul(Otos_i, O2, Otos_i); | |
| 1193 __ sub(O1, Otos_i, Otos_i); | |
| 1194 } | |
| 1195 | |
| 1196 | |
| 1197 void TemplateTable::lmul() { | |
| 1198 transition(ltos, ltos); | |
| 1199 __ pop_l(O2); | |
| 1200 #ifdef _LP64 | |
| 1201 __ mulx(Otos_l, O2, Otos_l); | |
| 1202 #else | |
| 1203 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
| 1204 #endif | |
| 1205 | |
| 1206 } | |
| 1207 | |
| 1208 | |
| 1209 void TemplateTable::ldiv() { | |
| 1210 transition(ltos, ltos); | |
| 1211 | |
| 1212 // check for zero | |
| 1213 __ pop_l(O2); | |
| 1214 #ifdef _LP64 | |
| 1215 __ tst(Otos_l); | |
| 1216 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1217 __ sdivx(O2, Otos_l, Otos_l); | |
| 1218 #else | |
| 1219 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1220 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1221 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 1222 #endif | |
| 1223 } | |
| 1224 | |
| 1225 | |
| 1226 void TemplateTable::lrem() { | |
| 1227 transition(ltos, ltos); | |
| 1228 | |
| 1229 // check for zero | |
| 1230 __ pop_l(O2); | |
| 1231 #ifdef _LP64 | |
| 1232 __ tst(Otos_l); | |
| 1233 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1234 __ sdivx(O2, Otos_l, Otos_l2); | |
| 1235 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
| 1236 __ sub (O2, Otos_l2, Otos_l); | |
| 1237 #else | |
| 1238 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1239 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1240 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 1241 #endif | |
| 1242 } | |
| 1243 | |
| 1244 | |
| 1245 void TemplateTable::lshl() { | |
| 1246 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
| 1247 | |
| 1248 __ pop_l(O2); // shift value in O2, O3 | |
| 1249 #ifdef _LP64 | |
| 1250 __ sllx(O2, Otos_i, Otos_l); | |
| 1251 #else | |
| 1252 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1253 #endif | |
| 1254 } | |
| 1255 | |
| 1256 | |
| 1257 void TemplateTable::lshr() { | |
| 1258 transition(itos, ltos); // %%%% see lshl comment | |
| 1259 | |
| 1260 __ pop_l(O2); // shift value in O2, O3 | |
| 1261 #ifdef _LP64 | |
| 1262 __ srax(O2, Otos_i, Otos_l); | |
| 1263 #else | |
| 1264 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1265 #endif | |
| 1266 } | |
| 1267 | |
| 1268 | |
| 1269 | |
| 1270 void TemplateTable::lushr() { | |
| 1271 transition(itos, ltos); // %%%% see lshl comment | |
| 1272 | |
| 1273 __ pop_l(O2); // shift value in O2, O3 | |
| 1274 #ifdef _LP64 | |
| 1275 __ srlx(O2, Otos_i, Otos_l); | |
| 1276 #else | |
| 1277 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1278 #endif | |
| 1279 } | |
| 1280 | |
| 1281 | |
| 1282 void TemplateTable::fop2(Operation op) { | |
| 1283 transition(ftos, ftos); | |
| 1284 switch (op) { | |
| 1285 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1286 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1287 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1288 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1289 case rem: | |
| 1290 assert(Ftos_f == F0, "just checking"); | |
| 1291 #ifdef _LP64 | |
| 1292 // LP64 calling conventions use F1, F3 for passing 2 floats | |
| 1293 __ pop_f(F1); | |
| 1294 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
| 1295 #else | |
| 1296 __ pop_i(O0); | |
| 1297 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
| 1298 __ ld( __ d_tmp, O1 ); | |
| 1299 #endif | |
| 1300 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
| 1301 assert( Ftos_f == F0, "fix this code" ); | |
| 1302 break; | |
| 1303 | |
| 1304 default: ShouldNotReachHere(); | |
| 1305 } | |
| 1306 } | |
| 1307 | |
| 1308 | |
| 1309 void TemplateTable::dop2(Operation op) { | |
| 1310 transition(dtos, dtos); | |
| 1311 switch (op) { | |
| 1312 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1313 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1314 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1315 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1316 case rem: | |
| 1317 #ifdef _LP64 | |
| 1318 // Pass arguments in D0, D2 | |
| 1319 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
| 1320 __ pop_d( F0 ); | |
| 1321 #else | |
| 1322 // Pass arguments in O0O1, O2O3 | |
| 1323 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1324 __ ldd( __ d_tmp, O2 ); | |
| 1325 __ pop_d(Ftos_f); | |
| 1326 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1327 __ ldd( __ d_tmp, O0 ); | |
| 1328 #endif | |
| 1329 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
| 1330 assert( Ftos_d == F0, "fix this code" ); | |
| 1331 break; | |
| 1332 | |
| 1333 default: ShouldNotReachHere(); | |
| 1334 } | |
| 1335 } | |
| 1336 | |
| 1337 | |
| 1338 void TemplateTable::ineg() { | |
| 1339 transition(itos, itos); | |
| 1340 __ neg(Otos_i); | |
| 1341 } | |
| 1342 | |
| 1343 | |
| 1344 void TemplateTable::lneg() { | |
| 1345 transition(ltos, ltos); | |
| 1346 #ifdef _LP64 | |
| 1347 __ sub(G0, Otos_l, Otos_l); | |
| 1348 #else | |
| 1349 __ lneg(Otos_l1, Otos_l2); | |
| 1350 #endif | |
| 1351 } | |
| 1352 | |
| 1353 | |
| 1354 void TemplateTable::fneg() { | |
| 1355 transition(ftos, ftos); | |
| 1356 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
| 1357 } | |
| 1358 | |
| 1359 | |
| 1360 void TemplateTable::dneg() { | |
| 1361 transition(dtos, dtos); | |
| 1362 // v8 has fnegd if source and dest are the same | |
| 1363 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
| 1364 } | |
| 1365 | |
| 1366 | |
| 1367 void TemplateTable::iinc() { | |
| 1368 transition(vtos, vtos); | |
| 1369 locals_index(G3_scratch); | |
| 1370 __ ldsb(Lbcp, 2, O2); // load constant | |
| 1371 __ access_local_int(G3_scratch, Otos_i); | |
| 1372 __ add(Otos_i, O2, Otos_i); | |
| 1506 | 1373 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1374 } |
| 1375 | |
| 1376 | |
| 1377 void TemplateTable::wide_iinc() { | |
| 1378 transition(vtos, vtos); | |
| 1379 locals_index_wide(G3_scratch); | |
| 1380 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
| 1381 __ access_local_int(G3_scratch, Otos_i); | |
| 1382 __ add(Otos_i, O3, Otos_i); | |
| 1506 | 1383 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1384 } |
| 1385 | |
| 1386 | |
| 1387 void TemplateTable::convert() { | |
| 1388 // %%%%% Factor this first part accross platforms | |
| 1389 #ifdef ASSERT | |
| 1390 TosState tos_in = ilgl; | |
| 1391 TosState tos_out = ilgl; | |
| 1392 switch (bytecode()) { | |
| 1393 case Bytecodes::_i2l: // fall through | |
| 1394 case Bytecodes::_i2f: // fall through | |
| 1395 case Bytecodes::_i2d: // fall through | |
| 1396 case Bytecodes::_i2b: // fall through | |
| 1397 case Bytecodes::_i2c: // fall through | |
| 1398 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1399 case Bytecodes::_l2i: // fall through | |
| 1400 case Bytecodes::_l2f: // fall through | |
| 1401 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1402 case Bytecodes::_f2i: // fall through | |
| 1403 case Bytecodes::_f2l: // fall through | |
| 1404 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1405 case Bytecodes::_d2i: // fall through | |
| 1406 case Bytecodes::_d2l: // fall through | |
| 1407 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1408 default : ShouldNotReachHere(); | |
| 1409 } | |
| 1410 switch (bytecode()) { | |
| 1411 case Bytecodes::_l2i: // fall through | |
| 1412 case Bytecodes::_f2i: // fall through | |
| 1413 case Bytecodes::_d2i: // fall through | |
| 1414 case Bytecodes::_i2b: // fall through | |
| 1415 case Bytecodes::_i2c: // fall through | |
| 1416 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1417 case Bytecodes::_i2l: // fall through | |
| 1418 case Bytecodes::_f2l: // fall through | |
| 1419 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1420 case Bytecodes::_i2f: // fall through | |
| 1421 case Bytecodes::_l2f: // fall through | |
| 1422 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1423 case Bytecodes::_i2d: // fall through | |
| 1424 case Bytecodes::_l2d: // fall through | |
| 1425 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1426 default : ShouldNotReachHere(); | |
| 1427 } | |
| 1428 transition(tos_in, tos_out); | |
| 1429 #endif | |
| 1430 | |
| 1431 | |
| 1432 // Conversion | |
| 1433 Label done; | |
| 1434 switch (bytecode()) { | |
| 1435 case Bytecodes::_i2l: | |
| 1436 #ifdef _LP64 | |
| 1437 // Sign extend the 32 bits | |
| 1438 __ sra ( Otos_i, 0, Otos_l ); | |
| 1439 #else | |
| 1440 __ addcc(Otos_i, 0, Otos_l2); | |
| 1441 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
| 1442 __ delayed()->clr(Otos_l1); | |
| 1443 __ set(~0, Otos_l1); | |
| 1444 #endif | |
| 1445 break; | |
| 1446 | |
| 1447 case Bytecodes::_i2f: | |
| 1448 __ st(Otos_i, __ d_tmp ); | |
| 1449 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1450 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
| 1451 break; | |
| 1452 | |
| 1453 case Bytecodes::_i2d: | |
| 1454 __ st(Otos_i, __ d_tmp); | |
| 1455 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1456 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
| 1457 break; | |
| 1458 | |
| 1459 case Bytecodes::_i2b: | |
| 1460 __ sll(Otos_i, 24, Otos_i); | |
| 1461 __ sra(Otos_i, 24, Otos_i); | |
| 1462 break; | |
| 1463 | |
| 1464 case Bytecodes::_i2c: | |
| 1465 __ sll(Otos_i, 16, Otos_i); | |
| 1466 __ srl(Otos_i, 16, Otos_i); | |
| 1467 break; | |
| 1468 | |
| 1469 case Bytecodes::_i2s: | |
| 1470 __ sll(Otos_i, 16, Otos_i); | |
| 1471 __ sra(Otos_i, 16, Otos_i); | |
| 1472 break; | |
| 1473 | |
| 1474 case Bytecodes::_l2i: | |
| 1475 #ifndef _LP64 | |
| 1476 __ mov(Otos_l2, Otos_i); | |
| 1477 #else | |
| 1478 // Sign-extend into the high 32 bits | |
| 1479 __ sra(Otos_l, 0, Otos_i); | |
| 1480 #endif | |
| 1481 break; | |
| 1482 | |
| 1483 case Bytecodes::_l2f: | |
| 1484 case Bytecodes::_l2d: | |
| 1485 __ st_long(Otos_l, __ d_tmp); | |
| 1486 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
| 1487 | |
| 1488 if (VM_Version::v9_instructions_work()) { | |
| 1489 if (bytecode() == Bytecodes::_l2f) { | |
| 1490 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1491 } else { | |
| 1492 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
| 1493 } | |
| 1494 } else { | |
| 1495 __ call_VM_leaf( | |
| 1496 Lscratch, | |
| 1497 bytecode() == Bytecodes::_l2f | |
| 1498 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
| 1499 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
| 1500 ); | |
| 1501 } | |
| 1502 break; | |
| 1503 | |
| 1504 case Bytecodes::_f2i: { | |
| 1505 Label isNaN; | |
| 1506 // result must be 0 if value is NaN; test by comparing value to itself | |
| 1507 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
| 1508 // According to the v8 manual, you have to have a non-fp instruction | |
| 1509 // between fcmp and fb. | |
| 1510 if (!VM_Version::v9_instructions_work()) { | |
| 1511 __ nop(); | |
| 1512 } | |
| 1513 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
| 1514 __ delayed()->clr(Otos_i); // NaN | |
| 1515 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
| 1516 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
| 1517 __ ld(__ d_tmp, Otos_i); | |
| 1518 __ bind(isNaN); | |
| 1519 } | |
| 1520 break; | |
| 1521 | |
| 1522 case Bytecodes::_f2l: | |
| 1523 // must uncache tos | |
| 1524 __ push_f(); | |
| 1525 #ifdef _LP64 | |
| 1526 __ pop_f(F1); | |
| 1527 #else | |
| 1528 __ pop_i(O0); | |
| 1529 #endif | |
| 1530 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
| 1531 break; | |
| 1532 | |
| 1533 case Bytecodes::_f2d: | |
| 1534 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
| 1535 break; | |
| 1536 | |
| 1537 case Bytecodes::_d2i: | |
| 1538 case Bytecodes::_d2l: | |
| 1539 // must uncache tos | |
| 1540 __ push_d(); | |
| 1541 #ifdef _LP64 | |
| 1542 // LP64 calling conventions pass first double arg in D0 | |
| 1543 __ pop_d( Ftos_d ); | |
| 1544 #else | |
| 1545 __ pop_i( O0 ); | |
| 1546 __ pop_i( O1 ); | |
| 1547 #endif | |
| 1548 __ call_VM_leaf(Lscratch, | |
| 1549 bytecode() == Bytecodes::_d2i | |
| 1550 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
| 1551 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
| 1552 break; | |
| 1553 | |
| 1554 case Bytecodes::_d2f: | |
| 1555 if (VM_Version::v9_instructions_work()) { | |
| 1556 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1557 } | |
| 1558 else { | |
| 1559 // must uncache tos | |
| 1560 __ push_d(); | |
| 1561 __ pop_i(O0); | |
| 1562 __ pop_i(O1); | |
| 1563 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
| 1564 } | |
| 1565 break; | |
| 1566 | |
| 1567 default: ShouldNotReachHere(); | |
| 1568 } | |
| 1569 __ bind(done); | |
| 1570 } | |
| 1571 | |
| 1572 | |
| 1573 void TemplateTable::lcmp() { | |
| 1574 transition(ltos, itos); | |
| 1575 | |
| 1576 #ifdef _LP64 | |
| 1577 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
| 1578 __ lcmp( O1, Otos_l, Otos_i ); | |
| 1579 #else | |
| 1580 __ pop_l(O2); // cmp O2,3 to O0,1 | |
| 1581 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
| 1582 #endif | |
| 1583 } | |
| 1584 | |
| 1585 | |
| 1586 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1587 | |
| 1588 if (is_float) __ pop_f(F2); | |
| 1589 else __ pop_d(F2); | |
| 1590 | |
| 1591 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
| 1592 | |
| 1593 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
| 1594 } | |
| 1595 | |
| 1596 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1597 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
| 1598 __ verify_oop(Lmethod); | |
| 1599 __ verify_thread(); | |
| 1600 | |
| 1601 const Register O2_bumped_count = O2; | |
| 1602 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
| 1603 | |
| 1604 // get (wide) offset to O1_disp | |
| 1605 const Register O1_disp = O1; | |
| 1606 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
| 1607 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
| 1608 | |
| 1609 // Handle all the JSR stuff here, then exit. | |
| 1610 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1611 // non-JSR normal-branch stuff occurring below. |
| 0 | 1612 if( is_jsr ) { |
| 1613 // compute return address as bci in Otos_i | |
| 727 | 1614 __ ld_ptr(Lmethod, methodOopDesc::const_offset(), G3_scratch); |
| 0 | 1615 __ sub(Lbcp, G3_scratch, G3_scratch); |
| 1616 __ sub(G3_scratch, in_bytes(constMethodOopDesc::codes_offset()) - (is_wide ? 5 : 3), Otos_i); | |
| 1617 | |
| 1618 // Bump Lbcp to target of JSR | |
| 1619 __ add(Lbcp, O1_disp, Lbcp); | |
| 1620 // Push returnAddress for "ret" on stack | |
| 1506 | 1621 __ push_ptr(Otos_i); |
| 0 | 1622 // And away we go! |
| 1623 __ dispatch_next(vtos); | |
| 1624 return; | |
| 1625 } | |
| 1626 | |
| 1627 // Normal (non-jsr) branch handling | |
| 1628 | |
| 1629 // Save the current Lbcp | |
| 1630 const Register O0_cur_bcp = O0; | |
| 1631 __ mov( Lbcp, O0_cur_bcp ); | |
| 1632 | |
| 1783 | 1633 |
| 0 | 1634 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
| 1635 if ( increment_invocation_counter_for_backward_branches ) { | |
| 1636 Label Lforward; | |
| 1637 // check branch direction | |
| 1638 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
| 1639 // Bump bytecode pointer by displacement (take the branch) | |
| 1640 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
| 1641 | |
| 1783 | 1642 if (TieredCompilation) { |
| 1643 Label Lno_mdo, Loverflow; | |
| 1644 int increment = InvocationCounter::count_increment; | |
| 1645 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1646 if (ProfileInterpreter) { | |
| 1647 // If no method data exists, go to profile_continue. | |
| 1648 __ ld_ptr(Lmethod, methodOopDesc::method_data_offset(), G4_scratch); | |
| 3839 | 1649 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
| 1783 | 1650 |
| 1651 // Increment backedge counter in the MDO | |
| 1652 Address mdo_backedge_counter(G4_scratch, in_bytes(methodDataOopDesc::backedge_counter_offset()) + | |
| 1653 in_bytes(InvocationCounter::counter_offset())); | |
| 1654 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1655 Assembler::notZero, &Lforward); | |
| 3839 | 1656 __ ba_short(Loverflow); |
| 0 | 1657 } |
| 1783 | 1658 |
| 1659 // If there's no MDO, increment counter in methodOop | |
| 1660 __ bind(Lno_mdo); | |
| 1661 Address backedge_counter(Lmethod, in_bytes(methodOopDesc::backedge_counter_offset()) + | |
| 1662 in_bytes(InvocationCounter::counter_offset())); | |
| 1663 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
| 1664 Assembler::notZero, &Lforward); | |
| 1665 __ bind(Loverflow); | |
| 1666 | |
| 1667 // notify point for loop, pass branch bytecode | |
| 1668 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
| 1669 | |
| 1670 // Was an OSR adapter generated? | |
| 1671 // O0 = osr nmethod | |
| 3839 | 1672 __ br_null_short(O0, Assembler::pn, Lforward); |
| 1783 | 1673 |
| 1674 // Has the nmethod been invalidated already? | |
| 1675 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
| 3839 | 1676 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
| 1783 | 1677 |
| 1678 // migrate the interpreter frame off of the stack | |
| 1679 | |
| 1680 __ mov(G2_thread, L7); | |
| 1681 // save nmethod | |
| 1682 __ mov(O0, L6); | |
| 1683 __ set_last_Java_frame(SP, noreg); | |
| 1684 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
| 1685 __ reset_last_Java_frame(); | |
| 1686 __ mov(L7, G2_thread); | |
| 1687 | |
| 1688 // move OSR nmethod to I1 | |
| 1689 __ mov(L6, I1); | |
| 1690 | |
| 1691 // OSR buffer to I0 | |
| 1692 __ mov(O0, I0); | |
| 1693 | |
| 1694 // remove the interpreter frame | |
| 1695 __ restore(I5_savedSP, 0, SP); | |
| 1696 | |
| 1697 // Jump to the osr code. | |
| 1698 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
| 1699 __ jmp(O2, G0); | |
| 1700 __ delayed()->nop(); | |
| 1701 | |
| 0 | 1702 } else { |
| 1783 | 1703 // Update Backedge branch separately from invocations |
| 1704 const Register G4_invoke_ctr = G4; | |
| 1705 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
| 1706 if (ProfileInterpreter) { | |
|
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|
1707 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
| 1783 | 1708 if (UseOnStackReplacement) { |
| 1709 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
| 1710 } | |
| 1711 } else { | |
| 1712 if (UseOnStackReplacement) { | |
| 1713 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
| 1714 } | |
| 0 | 1715 } |
| 1716 } | |
| 1717 | |
| 1718 __ bind(Lforward); | |
| 1719 } else | |
| 1720 // Bump bytecode pointer by displacement (take the branch) | |
| 1721 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
| 1722 | |
| 1723 // continue with bytecode @ target | |
| 1724 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
| 1725 // %%%%% and changing dispatch_next to dispatch_only | |
| 1726 __ dispatch_next(vtos); | |
| 1727 } | |
| 1728 | |
| 1729 | |
| 1730 // Note Condition in argument is TemplateTable::Condition | |
| 1731 // arg scope is within class scope | |
| 1732 | |
| 1733 void TemplateTable::if_0cmp(Condition cc) { | |
| 1734 // no pointers, integer only! | |
| 1735 transition(itos, vtos); | |
| 1736 // assume branch is more often taken than not (loops use backward branches) | |
| 1737 __ cmp( Otos_i, 0); | |
| 1738 __ if_cmp(ccNot(cc), false); | |
| 1739 } | |
| 1740 | |
| 1741 | |
| 1742 void TemplateTable::if_icmp(Condition cc) { | |
| 1743 transition(itos, vtos); | |
| 1744 __ pop_i(O1); | |
| 1745 __ cmp(O1, Otos_i); | |
| 1746 __ if_cmp(ccNot(cc), false); | |
| 1747 } | |
| 1748 | |
| 1749 | |
| 1750 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1751 transition(atos, vtos); | |
| 1752 __ tst(Otos_i); | |
| 1753 __ if_cmp(ccNot(cc), true); | |
| 1754 } | |
| 1755 | |
| 1756 | |
| 1757 void TemplateTable::if_acmp(Condition cc) { | |
| 1758 transition(atos, vtos); | |
| 1759 __ pop_ptr(O1); | |
| 1760 __ verify_oop(O1); | |
| 1761 __ verify_oop(Otos_i); | |
| 1762 __ cmp(O1, Otos_i); | |
| 1763 __ if_cmp(ccNot(cc), true); | |
| 1764 } | |
| 1765 | |
| 1766 | |
| 1767 | |
| 1768 void TemplateTable::ret() { | |
| 1769 transition(vtos, vtos); | |
| 1770 locals_index(G3_scratch); | |
| 1771 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1772 // Otos_i contains the bci, compute the bcp from that | |
| 1773 | |
| 1774 #ifdef _LP64 | |
| 1775 #ifdef ASSERT | |
| 1776 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
| 1777 // the result. The return address (really a BCI) was stored with an | |
| 1778 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
| 1779 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
| 1780 // loaded value. | |
| 1781 { Label zzz ; | |
| 1782 __ set (65536, G3_scratch) ; | |
| 1783 __ cmp (Otos_i, G3_scratch) ; | |
| 1784 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
| 1785 __ delayed()->nop(); | |
| 1786 __ stop("BCI is in the wrong register half?"); | |
| 1787 __ bind (zzz) ; | |
| 1788 } | |
| 1789 #endif | |
| 1790 #endif | |
| 1791 | |
| 1792 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1793 | |
| 727 | 1794 __ ld_ptr(Lmethod, methodOopDesc::const_offset(), G3_scratch); |
| 0 | 1795 __ add(G3_scratch, Otos_i, G3_scratch); |
| 1796 __ add(G3_scratch, in_bytes(constMethodOopDesc::codes_offset()), Lbcp); | |
| 1797 __ dispatch_next(vtos); | |
| 1798 } | |
| 1799 | |
| 1800 | |
| 1801 void TemplateTable::wide_ret() { | |
| 1802 transition(vtos, vtos); | |
| 1803 locals_index_wide(G3_scratch); | |
| 1804 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1805 // Otos_i contains the bci, compute the bcp from that | |
| 1806 | |
| 1807 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1808 | |
| 727 | 1809 __ ld_ptr(Lmethod, methodOopDesc::const_offset(), G3_scratch); |
| 0 | 1810 __ add(G3_scratch, Otos_i, G3_scratch); |
| 1811 __ add(G3_scratch, in_bytes(constMethodOopDesc::codes_offset()), Lbcp); | |
| 1812 __ dispatch_next(vtos); | |
| 1813 } | |
| 1814 | |
| 1815 | |
| 1816 void TemplateTable::tableswitch() { | |
| 1817 transition(itos, vtos); | |
| 1818 Label default_case, continue_execution; | |
| 1819 | |
| 1820 // align bcp | |
| 1821 __ add(Lbcp, BytesPerInt, O1); | |
| 1822 __ and3(O1, -BytesPerInt, O1); | |
| 1823 // load lo, hi | |
| 1824 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
| 1825 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
| 1826 #ifdef _LP64 | |
| 1827 // Sign extend the 32 bits | |
| 1828 __ sra ( Otos_i, 0, Otos_i ); | |
| 1829 #endif /* _LP64 */ | |
| 1830 | |
| 1831 // check against lo & hi | |
| 1832 __ cmp( Otos_i, O2); | |
| 1833 __ br( Assembler::less, false, Assembler::pn, default_case); | |
| 1834 __ delayed()->cmp( Otos_i, O3 ); | |
| 1835 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
| 1836 // lookup dispatch offset | |
| 1837 __ delayed()->sub(Otos_i, O2, O2); | |
| 1838 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
| 1839 __ sll(O2, LogBytesPerInt, O2); | |
| 1840 __ add(O2, 3 * BytesPerInt, O2); | |
| 3839 | 1841 __ ba(continue_execution); |
| 0 | 1842 __ delayed()->ld(O1, O2, O2); |
| 1843 // handle default | |
| 1844 __ bind(default_case); | |
| 1845 __ profile_switch_default(O3); | |
| 1846 __ ld(O1, 0, O2); // get default offset | |
| 1847 // continue execution | |
| 1848 __ bind(continue_execution); | |
| 1849 __ add(Lbcp, O2, Lbcp); | |
| 1850 __ dispatch_next(vtos); | |
| 1851 } | |
| 1852 | |
| 1853 | |
| 1854 void TemplateTable::lookupswitch() { | |
| 1855 transition(itos, itos); | |
| 1856 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1857 } | |
| 1858 | |
| 1859 void TemplateTable::fast_linearswitch() { | |
| 1860 transition(itos, vtos); | |
| 1861 Label loop_entry, loop, found, continue_execution; | |
| 1862 // align bcp | |
| 1863 __ add(Lbcp, BytesPerInt, O1); | |
| 1864 __ and3(O1, -BytesPerInt, O1); | |
| 1865 // set counter | |
| 1866 __ ld(O1, BytesPerInt, O2); | |
| 1867 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
| 1868 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
| 3839 | 1869 __ ba(loop_entry); |
| 0 | 1870 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
| 1871 | |
| 1872 // table search | |
| 1873 __ bind(loop); | |
| 1874 __ cmp(O4, Otos_i); | |
| 1875 __ br(Assembler::equal, true, Assembler::pn, found); | |
| 1876 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
| 1877 __ inc(O3, 2 * BytesPerInt); | |
| 1878 | |
| 1879 __ bind(loop_entry); | |
| 1880 __ cmp(O2, O3); | |
| 1881 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
| 1882 __ delayed()->ld(O3, 0, O4); | |
| 1883 | |
| 1884 // default case | |
| 1885 __ ld(O1, 0, O4); // get default offset | |
| 1886 if (ProfileInterpreter) { | |
| 1887 __ profile_switch_default(O3); | |
| 3839 | 1888 __ ba_short(continue_execution); |
| 0 | 1889 } |
| 1890 | |
| 1891 // entry found -> get offset | |
| 1892 __ bind(found); | |
| 1893 if (ProfileInterpreter) { | |
| 1894 __ sub(O3, O1, O3); | |
| 1895 __ sub(O3, 2*BytesPerInt, O3); | |
| 1896 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
| 1897 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
| 1898 | |
| 1899 __ bind(continue_execution); | |
| 1900 } | |
| 1901 __ add(Lbcp, O4, Lbcp); | |
| 1902 __ dispatch_next(vtos); | |
| 1903 } | |
| 1904 | |
| 1905 | |
| 1906 void TemplateTable::fast_binaryswitch() { | |
| 1907 transition(itos, vtos); | |
| 1908 // Implementation using the following core algorithm: (copied from Intel) | |
| 1909 // | |
| 1910 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1911 // // Binary search according to "Methodik des Programmierens" by | |
| 1912 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1913 // int i = 0; | |
| 1914 // int j = n; | |
| 1915 // while (i+1 < j) { | |
| 1916 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1917 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1918 // // where a stands for the array and assuming that the (inexisting) | |
| 1919 // // element a[n] is infinitely big. | |
| 1920 // int h = (i + j) >> 1; | |
| 1921 // // i < h < j | |
| 1922 // if (key < array[h].fast_match()) { | |
| 1923 // j = h; | |
| 1924 // } else { | |
| 1925 // i = h; | |
| 1926 // } | |
| 1927 // } | |
| 1928 // // R: a[i] <= key < a[i+1] or Q | |
| 1929 // // (i.e., if key is within array, i is the correct index) | |
| 1930 // return i; | |
| 1931 // } | |
| 1932 | |
| 1933 // register allocation | |
| 1934 assert(Otos_i == O0, "alias checking"); | |
| 1935 const Register Rkey = Otos_i; // already set (tosca) | |
| 1936 const Register Rarray = O1; | |
| 1937 const Register Ri = O2; | |
| 1938 const Register Rj = O3; | |
| 1939 const Register Rh = O4; | |
| 1940 const Register Rscratch = O5; | |
| 1941 | |
| 1942 const int log_entry_size = 3; | |
| 1943 const int entry_size = 1 << log_entry_size; | |
| 1944 | |
| 1945 Label found; | |
| 1946 // Find Array start | |
| 1947 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
| 1948 __ and3(Rarray, -BytesPerInt, Rarray); | |
| 1949 // initialize i & j (in delay slot) | |
| 1950 __ clr( Ri ); | |
| 1951 | |
| 1952 // and start | |
| 1953 Label entry; | |
| 3839 | 1954 __ ba(entry); |
| 0 | 1955 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
| 1956 // (Rj is already in the native byte-ordering.) | |
| 1957 | |
| 1958 // binary search loop | |
| 1959 { Label loop; | |
| 1960 __ bind( loop ); | |
| 1961 // int h = (i + j) >> 1; | |
| 1962 __ sra( Rh, 1, Rh ); | |
| 1963 // if (key < array[h].fast_match()) { | |
| 1964 // j = h; | |
| 1965 // } else { | |
| 1966 // i = h; | |
| 1967 // } | |
| 1968 __ sll( Rh, log_entry_size, Rscratch ); | |
| 1969 __ ld( Rarray, Rscratch, Rscratch ); | |
| 1970 // (Rscratch is already in the native byte-ordering.) | |
| 1971 __ cmp( Rkey, Rscratch ); | |
| 1972 if ( VM_Version::v9_instructions_work() ) { | |
| 1973 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
| 1974 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
| 1975 } | |
| 1976 else { | |
| 1977 Label end_of_if; | |
| 1978 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
| 1979 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
| 1980 __ mov( Rh, Ri ); // else i = h | |
| 1981 __ bind(end_of_if); // } | |
| 1982 } | |
| 1983 | |
| 1984 // while (i+1 < j) | |
| 1985 __ bind( entry ); | |
| 1986 __ add( Ri, 1, Rscratch ); | |
| 1987 __ cmp(Rscratch, Rj); | |
| 1988 __ br( Assembler::less, true, Assembler::pt, loop ); | |
| 1989 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
| 1990 } | |
| 1991 | |
| 1992 // end of binary search, result index is i (must check again!) | |
| 1993 Label default_case; | |
| 1994 Label continue_execution; | |
| 1995 if (ProfileInterpreter) { | |
| 1996 __ mov( Ri, Rh ); // Save index in i for profiling | |
| 1997 } | |
| 1998 __ sll( Ri, log_entry_size, Ri ); | |
| 1999 __ ld( Rarray, Ri, Rscratch ); | |
| 2000 // (Rscratch is already in the native byte-ordering.) | |
| 2001 __ cmp( Rkey, Rscratch ); | |
| 2002 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
| 2003 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
| 2004 | |
| 2005 // entry found -> j = offset | |
| 2006 __ inc( Ri, BytesPerInt ); | |
| 2007 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
| 2008 __ ld( Rarray, Ri, Rj ); | |
| 2009 // (Rj is already in the native byte-ordering.) | |
| 2010 | |
| 2011 if (ProfileInterpreter) { | |
| 3839 | 2012 __ ba_short(continue_execution); |
| 0 | 2013 } |
| 2014 | |
| 2015 __ bind(default_case); // fall through (if not profiling) | |
| 2016 __ profile_switch_default(Ri); | |
| 2017 | |
| 2018 __ bind(continue_execution); | |
| 2019 __ add( Lbcp, Rj, Lbcp ); | |
| 2020 __ dispatch_next( vtos ); | |
| 2021 } | |
| 2022 | |
| 2023 | |
| 2024 void TemplateTable::_return(TosState state) { | |
| 2025 transition(state, state); | |
| 2026 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
| 2027 | |
| 2028 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2029 assert(state == vtos, "only valid state"); | |
| 2030 __ mov(G0, G3_scratch); | |
| 2031 __ access_local_ptr(G3_scratch, Otos_i); | |
|
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2032 __ load_klass(Otos_i, O2); |
| 0 | 2033 __ set(JVM_ACC_HAS_FINALIZER, G3); |
| 2034 __ ld(O2, Klass::access_flags_offset_in_bytes() + sizeof(oopDesc), O2); | |
| 2035 __ andcc(G3, O2, G0); | |
| 2036 Label skip_register_finalizer; | |
| 2037 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
| 2038 __ delayed()->nop(); | |
| 2039 | |
| 2040 // Call out to do finalizer registration | |
| 2041 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
| 2042 | |
| 2043 __ bind(skip_register_finalizer); | |
| 2044 } | |
| 2045 | |
| 2046 __ remove_activation(state, /* throw_monitor_exception */ true); | |
| 2047 | |
| 2048 // The caller's SP was adjusted upon method entry to accomodate | |
| 2049 // the callee's non-argument locals. Undo that adjustment. | |
| 2050 __ ret(); // return to caller | |
| 2051 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 2052 } | |
| 2053 | |
| 2054 | |
| 2055 // ---------------------------------------------------------------------------- | |
| 2056 // Volatile variables demand their effects be made known to all CPU's in | |
| 2057 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 2058 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 2059 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 2060 // reorder volatile references, the hardware also must not reorder them). | |
| 2061 // | |
| 2062 // According to the new Java Memory Model (JMM): | |
| 2063 // (1) All volatiles are serialized wrt to each other. | |
| 2064 // ALSO reads & writes act as aquire & release, so: | |
| 2065 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 2066 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 2067 // that happen before the volatile read to float down below it. | |
| 2068 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 2069 // that happen BEFORE the write float down to after the write. It's OK for | |
| 2070 // non-volatile memory refs that happen after the volatile write to float up | |
| 2071 // before it. | |
| 2072 // | |
| 2073 // We only put in barriers around volatile refs (they are expensive), not | |
| 2074 // _between_ memory refs (that would require us to track the flavor of the | |
| 2075 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 2076 // before volatile stores and after volatile loads. These nearly cover | |
| 2077 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 2078 // case is placed after volatile-stores although it could just as well go | |
| 2079 // before volatile-loads. | |
| 2080 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
| 2081 // Helper function to insert a is-volatile test and memory barrier | |
| 2082 // All current sparc implementations run in TSO, needing only StoreLoad | |
| 2083 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
| 2084 __ membar( order_constraint ); | |
| 2085 } | |
| 2086 | |
| 2087 // ---------------------------------------------------------------------------- | |
| 1565 | 2088 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2089 Register result, | |
| 2090 Register Rcache, | |
| 2091 Register index, | |
| 2092 size_t index_size) { | |
| 0 | 2093 // Depends on cpCacheOop layout! |
| 2094 Label resolved; | |
| 2095 | |
| 1565 | 2096 if (byte_no == f1_oop) { |
| 2097 // We are resolved if the f1 field contains a non-null object (CallSite, etc.) | |
| 2098 // This kind of CP cache entry does not need to match the flags byte, because | |
| 2099 // there is a 1-1 relation between bytecode type and CP entry type. | |
| 2100 assert_different_registers(result, Rcache); | |
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2101 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 1503 | 2102 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + |
| 1565 | 2103 ConstantPoolCacheEntry::f1_offset(), result); |
| 2104 __ tst(result); | |
| 1503 | 2105 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
| 2106 __ delayed()->set((int)bytecode(), O1); | |
| 2107 } else { | |
| 1565 | 2108 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
| 2109 assert(result == noreg, ""); //else change code for setting result | |
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2110 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2111 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2112 __ br(Assembler::equal, false, Assembler::pt, resolved); |
| 1503 | 2113 __ delayed()->set((int)bytecode(), O1); |
| 2114 } | |
| 0 | 2115 |
| 2116 address entry; | |
| 2117 switch (bytecode()) { | |
| 2118 case Bytecodes::_getstatic : // fall through | |
| 2119 case Bytecodes::_putstatic : // fall through | |
| 2120 case Bytecodes::_getfield : // fall through | |
| 2121 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
| 2122 case Bytecodes::_invokevirtual : // fall through | |
| 2123 case Bytecodes::_invokespecial : // fall through | |
| 2124 case Bytecodes::_invokestatic : // fall through | |
| 2125 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
| 1503 | 2126 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
| 1602 | 2127 case Bytecodes::_fast_aldc : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); break; |
| 2128 case Bytecodes::_fast_aldc_w : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); break; | |
| 0 | 2129 default : ShouldNotReachHere(); break; |
| 2130 } | |
| 2131 // first time invocation - must resolve first | |
| 2132 __ call_VM(noreg, entry, O1); | |
| 2133 // Update registers with resolved info | |
| 1565 | 2134 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 2135 if (result != noreg) | |
| 2136 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + | |
| 2137 ConstantPoolCacheEntry::f1_offset(), result); | |
| 0 | 2138 __ bind(resolved); |
| 2139 } | |
| 2140 | |
| 2141 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
| 2142 Register Rmethod, | |
| 2143 Register Ritable_index, | |
| 2144 Register Rflags, | |
| 2145 bool is_invokevirtual, | |
| 1565 | 2146 bool is_invokevfinal, |
| 2147 bool is_invokedynamic) { | |
| 0 | 2148 // Uses both G3_scratch and G4_scratch |
| 2149 Register Rcache = G3_scratch; | |
| 2150 Register Rscratch = G4_scratch; | |
| 2151 assert_different_registers(Rcache, Rmethod, Ritable_index); | |
| 2152 | |
| 2153 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2154 | |
| 2155 // determine constant pool cache field offsets | |
| 2156 const int method_offset = in_bytes( | |
| 2157 cp_base_offset + | |
| 2158 (is_invokevirtual | |
| 2159 ? ConstantPoolCacheEntry::f2_offset() | |
| 2160 : ConstantPoolCacheEntry::f1_offset() | |
| 2161 ) | |
| 2162 ); | |
| 2163 const int flags_offset = in_bytes(cp_base_offset + | |
| 2164 ConstantPoolCacheEntry::flags_offset()); | |
| 2165 // access constant pool cache fields | |
| 2166 const int index_offset = in_bytes(cp_base_offset + | |
| 2167 ConstantPoolCacheEntry::f2_offset()); | |
| 2168 | |
| 2169 if (is_invokevfinal) { | |
| 2170 __ get_cache_and_index_at_bcp(Rcache, Rscratch, 1); | |
| 1565 | 2171 __ ld_ptr(Rcache, method_offset, Rmethod); |
| 2172 } else if (byte_no == f1_oop) { | |
| 2173 // Resolved f1_oop goes directly into 'method' register. | |
| 2174 resolve_cache_and_index(byte_no, Rmethod, Rcache, Rscratch, sizeof(u4)); | |
| 0 | 2175 } else { |
| 1565 | 2176 resolve_cache_and_index(byte_no, noreg, Rcache, Rscratch, sizeof(u2)); |
| 2177 __ ld_ptr(Rcache, method_offset, Rmethod); | |
| 0 | 2178 } |
| 2179 | |
| 2180 if (Ritable_index != noreg) { | |
| 727 | 2181 __ ld_ptr(Rcache, index_offset, Ritable_index); |
| 0 | 2182 } |
| 727 | 2183 __ ld_ptr(Rcache, flags_offset, Rflags); |
| 0 | 2184 } |
| 2185 | |
| 2186 // The Rcache register must be set before call | |
| 2187 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
| 2188 Register Rcache, | |
| 2189 Register index, | |
| 2190 Register Roffset, | |
| 2191 Register Rflags, | |
| 2192 bool is_static) { | |
| 2193 assert_different_registers(Rcache, Rflags, Roffset); | |
| 2194 | |
| 2195 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2196 | |
| 727 | 2197 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 2198 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
| 0 | 2199 if (is_static) { |
| 727 | 2200 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
| 0 | 2201 } |
| 2202 } | |
| 2203 | |
| 2204 // The registers Rcache and index expected to be set before call. | |
| 2205 // Correct values of the Rcache and index registers are preserved. | |
| 2206 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
| 2207 Register index, | |
| 2208 bool is_static, | |
| 2209 bool has_tos) { | |
| 2210 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2211 | |
| 2212 if (JvmtiExport::can_post_field_access()) { | |
| 2213 // Check to see if a field access watch has been set before we take | |
| 2214 // the time to call into the VM. | |
| 2215 Label Label1; | |
| 2216 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2217 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
| 0 | 2218 __ load_contents(get_field_access_count_addr, G1_scratch); |
| 3839 | 2219 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
| 0 | 2220 |
| 2221 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
| 2222 | |
| 2223 if (is_static) { | |
| 2224 __ clr(Otos_i); | |
| 2225 } else { | |
| 2226 if (has_tos) { | |
| 2227 // save object pointer before call_VM() clobbers it | |
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2228 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
| 0 | 2229 } else { |
| 2230 // Load top of stack (do not pop the value off the stack); | |
| 2231 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 2232 } | |
| 2233 __ verify_oop(Otos_i); | |
| 2234 } | |
| 2235 // Otos_i: object pointer or NULL if static | |
| 2236 // Rcache: cache entry pointer | |
| 2237 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2238 Otos_i, Rcache); | |
| 2239 if (!is_static && has_tos) { | |
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2240 __ pop_ptr(Otos_i); // restore object pointer |
| 0 | 2241 __ verify_oop(Otos_i); |
| 2242 } | |
| 2243 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2244 __ bind(Label1); | |
| 2245 } | |
| 2246 } | |
| 2247 | |
| 2248 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2249 transition(vtos, vtos); | |
| 2250 | |
| 2251 Register Rcache = G3_scratch; | |
| 2252 Register index = G4_scratch; | |
| 2253 Register Rclass = Rcache; | |
| 2254 Register Roffset= G4_scratch; | |
| 2255 Register Rflags = G1_scratch; | |
| 2256 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2257 | |
| 1565 | 2258 resolve_cache_and_index(byte_no, noreg, Rcache, index, sizeof(u2)); |
| 0 | 2259 jvmti_post_field_access(Rcache, index, is_static, false); |
| 2260 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2261 | |
| 2262 if (!is_static) { | |
| 2263 pop_and_check_object(Rclass); | |
| 2264 } else { | |
| 2265 __ verify_oop(Rclass); | |
| 2266 } | |
| 2267 | |
| 2268 Label exit; | |
| 2269 | |
| 2270 Assembler::Membar_mask_bits membar_bits = | |
| 2271 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2272 | |
| 2273 if (__ membar_has_effect(membar_bits)) { | |
| 2274 // Get volatile flag | |
| 2275 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); | |
| 2276 __ and3(Rflags, Lscratch, Lscratch); | |
| 2277 } | |
| 2278 | |
| 2279 Label checkVolatile; | |
| 2280 | |
| 2281 // compute field type | |
| 2282 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
| 2283 __ srl(Rflags, ConstantPoolCacheEntry::tosBits, Rflags); | |
| 2284 // Make sure we don't need to mask Rflags for tosBits after the above shift | |
| 2285 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2286 | |
| 2287 // Check atos before itos for getstatic, more likely (in Queens at least) | |
| 2288 __ cmp(Rflags, atos); | |
| 2289 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2290 __ delayed() ->cmp(Rflags, itos); | |
| 2291 | |
| 2292 // atos | |
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2293 __ load_heap_oop(Rclass, Roffset, Otos_i); |
| 0 | 2294 __ verify_oop(Otos_i); |
| 2295 __ push(atos); | |
| 2296 if (!is_static) { | |
| 2297 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
| 2298 } | |
| 3839 | 2299 __ ba(checkVolatile); |
| 0 | 2300 __ delayed()->tst(Lscratch); |
| 2301 | |
| 2302 __ bind(notObj); | |
| 2303 | |
| 2304 // cmp(Rflags, itos); | |
| 2305 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2306 __ delayed() ->cmp(Rflags, ltos); | |
| 2307 | |
| 2308 // itos | |
| 2309 __ ld(Rclass, Roffset, Otos_i); | |
| 2310 __ push(itos); | |
| 2311 if (!is_static) { | |
| 2312 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
| 2313 } | |
| 3839 | 2314 __ ba(checkVolatile); |
| 0 | 2315 __ delayed()->tst(Lscratch); |
| 2316 | |
| 2317 __ bind(notInt); | |
| 2318 | |
| 2319 // cmp(Rflags, ltos); | |
| 2320 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
| 2321 __ delayed() ->cmp(Rflags, btos); | |
| 2322 | |
| 2323 // ltos | |
| 2324 // load must be atomic | |
| 2325 __ ld_long(Rclass, Roffset, Otos_l); | |
| 2326 __ push(ltos); | |
| 2327 if (!is_static) { | |
| 2328 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
| 2329 } | |
| 3839 | 2330 __ ba(checkVolatile); |
| 0 | 2331 __ delayed()->tst(Lscratch); |
| 2332 | |
| 2333 __ bind(notLong); | |
| 2334 | |
| 2335 // cmp(Rflags, btos); | |
| 2336 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
| 2337 __ delayed() ->cmp(Rflags, ctos); | |
| 2338 | |
| 2339 // btos | |
| 2340 __ ldsb(Rclass, Roffset, Otos_i); | |
| 2341 __ push(itos); | |
| 2342 if (!is_static) { | |
| 2343 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
| 2344 } | |
| 3839 | 2345 __ ba(checkVolatile); |
| 0 | 2346 __ delayed()->tst(Lscratch); |
| 2347 | |
| 2348 __ bind(notByte); | |
| 2349 | |
| 2350 // cmp(Rflags, ctos); | |
| 2351 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
| 2352 __ delayed() ->cmp(Rflags, stos); | |
| 2353 | |
| 2354 // ctos | |
| 2355 __ lduh(Rclass, Roffset, Otos_i); | |
| 2356 __ push(itos); | |
| 2357 if (!is_static) { | |
| 2358 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
| 2359 } | |
| 3839 | 2360 __ ba(checkVolatile); |
| 0 | 2361 __ delayed()->tst(Lscratch); |
| 2362 | |
| 2363 __ bind(notChar); | |
| 2364 | |
| 2365 // cmp(Rflags, stos); | |
| 2366 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
| 2367 __ delayed() ->cmp(Rflags, ftos); | |
| 2368 | |
| 2369 // stos | |
| 2370 __ ldsh(Rclass, Roffset, Otos_i); | |
| 2371 __ push(itos); | |
| 2372 if (!is_static) { | |
| 2373 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
| 2374 } | |
| 3839 | 2375 __ ba(checkVolatile); |
| 0 | 2376 __ delayed()->tst(Lscratch); |
| 2377 | |
| 2378 __ bind(notShort); | |
| 2379 | |
| 2380 | |
| 2381 // cmp(Rflags, ftos); | |
| 2382 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
| 2383 __ delayed() ->tst(Lscratch); | |
| 2384 | |
| 2385 // ftos | |
| 2386 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
| 2387 __ push(ftos); | |
| 2388 if (!is_static) { | |
| 2389 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
| 2390 } | |
| 3839 | 2391 __ ba(checkVolatile); |
| 0 | 2392 __ delayed()->tst(Lscratch); |
| 2393 | |
| 2394 __ bind(notFloat); | |
| 2395 | |
| 2396 | |
| 2397 // dtos | |
| 2398 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
| 2399 __ push(dtos); | |
| 2400 if (!is_static) { | |
| 2401 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
| 2402 } | |
| 2403 | |
| 2404 __ bind(checkVolatile); | |
| 2405 if (__ membar_has_effect(membar_bits)) { | |
| 2406 // __ tst(Lscratch); executed in delay slot | |
| 2407 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2408 __ delayed()->nop(); | |
| 2409 volatile_barrier(membar_bits); | |
| 2410 } | |
| 2411 | |
| 2412 __ bind(exit); | |
| 2413 } | |
| 2414 | |
| 2415 | |
| 2416 void TemplateTable::getfield(int byte_no) { | |
| 2417 getfield_or_static(byte_no, false); | |
| 2418 } | |
| 2419 | |
| 2420 void TemplateTable::getstatic(int byte_no) { | |
| 2421 getfield_or_static(byte_no, true); | |
| 2422 } | |
| 2423 | |
| 2424 | |
| 2425 void TemplateTable::fast_accessfield(TosState state) { | |
| 2426 transition(atos, state); | |
| 2427 Register Rcache = G3_scratch; | |
| 2428 Register index = G4_scratch; | |
| 2429 Register Roffset = G4_scratch; | |
| 2430 Register Rflags = Rcache; | |
| 2431 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2432 | |
| 2433 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2434 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
| 2435 | |
| 727 | 2436 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2437 |
| 2438 __ null_check(Otos_i); | |
| 2439 __ verify_oop(Otos_i); | |
| 2440 | |
| 2441 Label exit; | |
| 2442 | |
| 2443 Assembler::Membar_mask_bits membar_bits = | |
| 2444 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2445 if (__ membar_has_effect(membar_bits)) { | |
| 2446 // Get volatile flag | |
| 727 | 2447 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
| 0 | 2448 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); |
| 2449 } | |
| 2450 | |
| 2451 switch (bytecode()) { | |
| 2452 case Bytecodes::_fast_bgetfield: | |
| 2453 __ ldsb(Otos_i, Roffset, Otos_i); | |
| 2454 break; | |
| 2455 case Bytecodes::_fast_cgetfield: | |
| 2456 __ lduh(Otos_i, Roffset, Otos_i); | |
| 2457 break; | |
| 2458 case Bytecodes::_fast_sgetfield: | |
| 2459 __ ldsh(Otos_i, Roffset, Otos_i); | |
| 2460 break; | |
| 2461 case Bytecodes::_fast_igetfield: | |
| 2462 __ ld(Otos_i, Roffset, Otos_i); | |
| 2463 break; | |
| 2464 case Bytecodes::_fast_lgetfield: | |
| 2465 __ ld_long(Otos_i, Roffset, Otos_l); | |
| 2466 break; | |
| 2467 case Bytecodes::_fast_fgetfield: | |
| 2468 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
| 2469 break; | |
| 2470 case Bytecodes::_fast_dgetfield: | |
| 2471 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
| 2472 break; | |
| 2473 case Bytecodes::_fast_agetfield: | |
|
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2474 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
| 0 | 2475 break; |
| 2476 default: | |
| 2477 ShouldNotReachHere(); | |
| 2478 } | |
| 2479 | |
| 2480 if (__ membar_has_effect(membar_bits)) { | |
| 2481 __ btst(Lscratch, Rflags); | |
| 2482 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2483 __ delayed()->nop(); | |
| 2484 volatile_barrier(membar_bits); | |
| 2485 __ bind(exit); | |
| 2486 } | |
| 2487 | |
| 2488 if (state == atos) { | |
| 2489 __ verify_oop(Otos_i); // does not blow flags! | |
| 2490 } | |
| 2491 } | |
| 2492 | |
| 2493 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2494 if (JvmtiExport::can_post_field_modification()) { | |
| 2495 // Check to see if a field modification watch has been set before we take | |
| 2496 // the time to call into the VM. | |
| 2497 Label done; | |
| 727 | 2498 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2499 __ load_contents(get_field_modification_count_addr, G4_scratch); |
| 3839 | 2500 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
| 0 | 2501 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
| 2502 __ verify_oop(G4_scratch); | |
| 2503 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
| 2504 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
| 2505 // Save tos values before call_VM() clobbers them. Since we have | |
| 2506 // to do it for every data type, we use the saved values as the | |
| 2507 // jvalue object. | |
| 2508 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
| 2509 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
| 2510 case Bytecodes::_fast_bputfield: // fall through | |
| 2511 case Bytecodes::_fast_sputfield: // fall through | |
| 2512 case Bytecodes::_fast_cputfield: // fall through | |
| 2513 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
| 2514 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
| 2515 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
| 2516 // get words in right order for use as jvalue object | |
| 2517 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
| 2518 } | |
| 2519 // setup pointer to jvalue object | |
| 2520 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
| 2521 // G4_scratch: object pointer | |
| 2522 // G1_scratch: cache entry pointer | |
| 2523 // G3_scratch: jvalue object on the stack | |
| 2524 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
| 2525 switch (bytecode()) { // restore tos values | |
| 2526 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
| 2527 case Bytecodes::_fast_bputfield: // fall through | |
| 2528 case Bytecodes::_fast_sputfield: // fall through | |
| 2529 case Bytecodes::_fast_cputfield: // fall through | |
| 2530 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
| 2531 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
| 2532 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
| 2533 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
| 2534 } | |
| 2535 __ bind(done); | |
| 2536 } | |
| 2537 } | |
| 2538 | |
| 2539 // The registers Rcache and index expected to be set before call. | |
| 2540 // The function may destroy various registers, just not the Rcache and index registers. | |
| 2541 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
| 2542 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2543 | |
| 2544 if (JvmtiExport::can_post_field_modification()) { | |
| 2545 // Check to see if a field modification watch has been set before we take | |
| 2546 // the time to call into the VM. | |
| 2547 Label Label1; | |
| 2548 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2549 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2550 __ load_contents(get_field_modification_count_addr, G1_scratch); |
| 3839 | 2551 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
| 0 | 2552 |
| 2553 // The Rcache and index registers have been already set. | |
| 2554 // This allows to eliminate this call but the Rcache and index | |
| 2555 // registers must be correspondingly used after this line. | |
| 2556 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
| 2557 | |
| 2558 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
| 2559 if (is_static) { | |
| 2560 // Life is simple. Null out the object pointer. | |
| 2561 __ clr(G4_scratch); | |
| 2562 } else { | |
| 2563 Register Rflags = G1_scratch; | |
| 2564 // Life is harder. The stack holds the value on top, followed by the | |
| 2565 // object. We don't know the size of the value, though; it could be | |
| 2566 // one or two words depending on its type. As a result, we must find | |
| 2567 // the type to determine where the object is. | |
| 2568 | |
| 2569 Label two_word, valsizeknown; | |
| 727 | 2570 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2571 __ mov(Lesp, G4_scratch); |
| 2572 __ srl(Rflags, ConstantPoolCacheEntry::tosBits, Rflags); | |
| 2573 // Make sure we don't need to mask Rflags for tosBits after the above shift | |
| 2574 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2575 __ cmp(Rflags, ltos); | |
| 2576 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2577 __ delayed()->cmp(Rflags, dtos); | |
| 2578 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2579 __ delayed()->nop(); | |
| 2580 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
| 3839 | 2581 __ ba_short(valsizeknown); |
| 0 | 2582 __ bind(two_word); |
| 2583 | |
| 2584 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
| 2585 | |
| 2586 __ bind(valsizeknown); | |
| 2587 // setup object pointer | |
| 2588 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
| 2589 __ verify_oop(G4_scratch); | |
| 2590 } | |
| 2591 // setup pointer to jvalue object | |
| 2592 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
| 2593 // G4_scratch: object pointer or NULL if static | |
| 2594 // G3_scratch: cache entry pointer | |
| 2595 // G1_scratch: jvalue object on the stack | |
| 2596 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2597 G4_scratch, G3_scratch, G1_scratch); | |
| 2598 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2599 __ bind(Label1); | |
| 2600 } | |
| 2601 } | |
| 2602 | |
| 2603 void TemplateTable::pop_and_check_object(Register r) { | |
| 2604 __ pop_ptr(r); | |
| 2605 __ null_check(r); // for field access must check obj. | |
| 2606 __ verify_oop(r); | |
| 2607 } | |
| 2608 | |
| 2609 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2610 transition(vtos, vtos); | |
| 2611 Register Rcache = G3_scratch; | |
| 2612 Register index = G4_scratch; | |
| 2613 Register Rclass = Rcache; | |
| 2614 Register Roffset= G4_scratch; | |
| 2615 Register Rflags = G1_scratch; | |
| 2616 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2617 | |
| 1565 | 2618 resolve_cache_and_index(byte_no, noreg, Rcache, index, sizeof(u2)); |
| 0 | 2619 jvmti_post_field_mod(Rcache, index, is_static); |
| 2620 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2621 | |
| 2622 Assembler::Membar_mask_bits read_bits = | |
| 2623 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2624 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2625 | |
| 2626 Label notVolatile, checkVolatile, exit; | |
| 2627 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 2628 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); | |
| 2629 __ and3(Rflags, Lscratch, Lscratch); | |
| 2630 | |
| 2631 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2632 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2633 volatile_barrier(read_bits); |
| 2634 __ bind(notVolatile); | |
| 2635 } | |
| 2636 } | |
| 2637 | |
| 2638 __ srl(Rflags, ConstantPoolCacheEntry::tosBits, Rflags); | |
| 2639 // Make sure we don't need to mask Rflags for tosBits after the above shift | |
| 2640 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2641 | |
| 2642 // compute field type | |
| 2643 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
| 2644 | |
| 2645 if (is_static) { | |
| 2646 // putstatic with object type most likely, check that first | |
|
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2647 __ cmp(Rflags, atos); |
| 0 | 2648 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2649 __ delayed()->cmp(Rflags, itos); |
| 0 | 2650 |
| 2651 // atos | |
|
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2652 { |
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2653 __ pop_ptr(); |
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2654 __ verify_oop(Otos_i); |
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2655 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2656 __ ba(checkVolatile); |
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2657 __ delayed()->tst(Lscratch); |
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2658 } |
| 0 | 2659 |
| 2660 __ bind(notObj); | |
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2661 // cmp(Rflags, itos); |
| 0 | 2662 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2663 __ delayed()->cmp(Rflags, btos); |
| 0 | 2664 |
| 2665 // itos | |
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2666 { |
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2667 __ pop_i(); |
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2668 __ st(Otos_i, Rclass, Roffset); |
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2669 __ ba(checkVolatile); |
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2670 __ delayed()->tst(Lscratch); |
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2671 } |
| 0 | 2672 |
| 2673 __ bind(notInt); | |
| 2674 } else { | |
| 2675 // putfield with int type most likely, check that first | |
|
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2676 __ cmp(Rflags, itos); |
| 0 | 2677 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2678 __ delayed()->cmp(Rflags, atos); |
| 0 | 2679 |
| 2680 // itos | |
|
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2681 { |
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2682 __ pop_i(); |
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2683 pop_and_check_object(Rclass); |
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2684 __ st(Otos_i, Rclass, Roffset); |
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2685 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
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2686 __ ba(checkVolatile); |
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2687 __ delayed()->tst(Lscratch); |
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2688 } |
| 0 | 2689 |
| 2690 __ bind(notInt); | |
|
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2691 // cmp(Rflags, atos); |
| 0 | 2692 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2693 __ delayed()->cmp(Rflags, btos); |
| 0 | 2694 |
| 2695 // atos | |
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2696 { |
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2697 __ pop_ptr(); |
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2698 pop_and_check_object(Rclass); |
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2699 __ verify_oop(Otos_i); |
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2700 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2701 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
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2702 __ ba(checkVolatile); |
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2703 __ delayed()->tst(Lscratch); |
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2704 } |
| 0 | 2705 |
| 2706 __ bind(notObj); | |
| 2707 } | |
| 2708 | |
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2709 // cmp(Rflags, btos); |
| 0 | 2710 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
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2711 __ delayed()->cmp(Rflags, ltos); |
| 0 | 2712 |
| 2713 // btos | |
|
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2714 { |
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2715 __ pop_i(); |
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2716 if (!is_static) pop_and_check_object(Rclass); |
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2717 __ stb(Otos_i, Rclass, Roffset); |
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2718 if (!is_static) { |
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2719 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
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2720 } |
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2721 __ ba(checkVolatile); |
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2722 __ delayed()->tst(Lscratch); |
| 0 | 2723 } |
| 2724 | |
| 2725 __ bind(notByte); | |
|
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2726 // cmp(Rflags, ltos); |
| 0 | 2727 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
|
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2728 __ delayed()->cmp(Rflags, ctos); |
| 0 | 2729 |
| 2730 // ltos | |
|
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2731 { |
|
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2732 __ pop_l(); |
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2733 if (!is_static) pop_and_check_object(Rclass); |
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2734 __ st_long(Otos_l, Rclass, Roffset); |
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2735 if (!is_static) { |
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2736 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
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2737 } |
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2738 __ ba(checkVolatile); |
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2739 __ delayed()->tst(Lscratch); |
| 0 | 2740 } |
| 2741 | |
| 2742 __ bind(notLong); | |
|
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2743 // cmp(Rflags, ctos); |
| 0 | 2744 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
|
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2745 __ delayed()->cmp(Rflags, stos); |
| 0 | 2746 |
| 2747 // ctos (char) | |
|
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2748 { |
|
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2749 __ pop_i(); |
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2750 if (!is_static) pop_and_check_object(Rclass); |
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2751 __ sth(Otos_i, Rclass, Roffset); |
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2752 if (!is_static) { |
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2753 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
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2754 } |
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2755 __ ba(checkVolatile); |
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2756 __ delayed()->tst(Lscratch); |
| 0 | 2757 } |
| 2758 | |
| 2759 __ bind(notChar); | |
|
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2760 // cmp(Rflags, stos); |
| 0 | 2761 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
|
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2762 __ delayed()->cmp(Rflags, ftos); |
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2763 |
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2764 // stos (short) |
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2765 { |
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2766 __ pop_i(); |
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2767 if (!is_static) pop_and_check_object(Rclass); |
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2768 __ sth(Otos_i, Rclass, Roffset); |
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2769 if (!is_static) { |
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2770 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
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2771 } |
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2772 __ ba(checkVolatile); |
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2773 __ delayed()->tst(Lscratch); |
| 0 | 2774 } |
| 2775 | |
| 2776 __ bind(notShort); | |
|
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2777 // cmp(Rflags, ftos); |
| 0 | 2778 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
| 2779 __ delayed()->nop(); | |
| 2780 | |
| 2781 // ftos | |
|
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2782 { |
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2783 __ pop_f(); |
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2784 if (!is_static) pop_and_check_object(Rclass); |
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2785 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
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2786 if (!is_static) { |
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2787 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
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2788 } |
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2789 __ ba(checkVolatile); |
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2790 __ delayed()->tst(Lscratch); |
| 0 | 2791 } |
| 2792 | |
| 2793 __ bind(notFloat); | |
| 2794 | |
| 2795 // dtos | |
|
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2796 { |
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2797 __ pop_d(); |
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2798 if (!is_static) pop_and_check_object(Rclass); |
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2799 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
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2800 if (!is_static) { |
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2801 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
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2802 } |
| 0 | 2803 } |
| 2804 | |
| 2805 __ bind(checkVolatile); | |
| 2806 __ tst(Lscratch); | |
| 2807 | |
| 2808 if (__ membar_has_effect(write_bits)) { | |
| 2809 // __ tst(Lscratch); in delay slot | |
| 2810 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2811 __ delayed()->nop(); | |
| 2812 volatile_barrier(Assembler::StoreLoad); | |
| 2813 __ bind(exit); | |
| 2814 } | |
| 2815 } | |
| 2816 | |
| 2817 void TemplateTable::fast_storefield(TosState state) { | |
| 2818 transition(state, vtos); | |
| 2819 Register Rcache = G3_scratch; | |
| 2820 Register Rclass = Rcache; | |
| 2821 Register Roffset= G4_scratch; | |
| 2822 Register Rflags = G1_scratch; | |
| 2823 ByteSize cp_base_offset = constantPoolCacheOopDesc::base_offset(); | |
| 2824 | |
| 2825 jvmti_post_fast_field_mod(); | |
| 2826 | |
| 2827 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
| 2828 | |
| 2829 Assembler::Membar_mask_bits read_bits = | |
| 2830 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2831 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2832 | |
| 2833 Label notVolatile, checkVolatile, exit; | |
| 2834 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 727 | 2835 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2836 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); |
| 2837 __ and3(Rflags, Lscratch, Lscratch); | |
| 2838 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2839 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2840 volatile_barrier(read_bits); |
| 2841 __ bind(notVolatile); | |
| 2842 } | |
| 2843 } | |
| 2844 | |
| 727 | 2845 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2846 pop_and_check_object(Rclass); |
| 2847 | |
| 2848 switch (bytecode()) { | |
| 2849 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
| 2850 case Bytecodes::_fast_cputfield: /* fall through */ | |
| 2851 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
| 2852 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
| 2853 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
| 2854 case Bytecodes::_fast_fputfield: | |
| 2855 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
| 2856 break; | |
| 2857 case Bytecodes::_fast_dputfield: | |
| 2858 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
| 2859 break; | |
| 2860 case Bytecodes::_fast_aputfield: | |
|
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2861 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
| 0 | 2862 break; |
| 2863 default: | |
| 2864 ShouldNotReachHere(); | |
| 2865 } | |
| 2866 | |
| 2867 if (__ membar_has_effect(write_bits)) { | |
| 3839 | 2868 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
| 0 | 2869 volatile_barrier(Assembler::StoreLoad); |
| 2870 __ bind(exit); | |
| 2871 } | |
| 2872 } | |
| 2873 | |
| 2874 | |
| 2875 void TemplateTable::putfield(int byte_no) { | |
| 2876 putfield_or_static(byte_no, false); | |
| 2877 } | |
| 2878 | |
| 2879 void TemplateTable::putstatic(int byte_no) { | |
| 2880 putfield_or_static(byte_no, true); | |
| 2881 } | |
| 2882 | |
| 2883 | |
| 2884 void TemplateTable::fast_xaccess(TosState state) { | |
| 2885 transition(vtos, state); | |
| 2886 Register Rcache = G3_scratch; | |
| 2887 Register Roffset = G4_scratch; | |
| 2888 Register Rflags = G4_scratch; | |
| 2889 Register Rreceiver = Lscratch; | |
| 2890 | |
| 1506 | 2891 __ ld_ptr(Llocals, 0, Rreceiver); |
| 0 | 2892 |
| 2893 // access constant pool cache (is resolved) | |
| 2894 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
| 727 | 2895 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2896 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
| 2897 | |
| 2898 __ verify_oop(Rreceiver); | |
| 2899 __ null_check(Rreceiver); | |
| 2900 if (state == atos) { | |
|
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2901 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
| 0 | 2902 } else if (state == itos) { |
| 2903 __ ld (Rreceiver, Roffset, Otos_i) ; | |
| 2904 } else if (state == ftos) { | |
| 2905 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
| 2906 } else { | |
| 2907 ShouldNotReachHere(); | |
| 2908 } | |
| 2909 | |
| 2910 Assembler::Membar_mask_bits membar_bits = | |
| 2911 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2912 if (__ membar_has_effect(membar_bits)) { | |
| 2913 | |
| 2914 // Get is_volatile value in Rflags and check if membar is needed | |
| 727 | 2915 __ ld_ptr(Rcache, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2916 |
| 2917 // Test volatile | |
| 2918 Label notVolatile; | |
| 2919 __ set((1 << ConstantPoolCacheEntry::volatileField), Lscratch); | |
| 2920 __ btst(Rflags, Lscratch); | |
| 2921 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2922 __ delayed()->nop(); | |
| 2923 volatile_barrier(membar_bits); | |
| 2924 __ bind(notVolatile); | |
| 2925 } | |
| 2926 | |
| 2927 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
| 2928 __ sub(Lbcp, 1, Lbcp); | |
| 2929 } | |
| 2930 | |
| 2931 //---------------------------------------------------------------------------------------------------- | |
| 2932 // Calls | |
| 2933 | |
| 2934 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2935 // implemented elsewhere | |
| 2936 ShouldNotReachHere(); | |
| 2937 } | |
| 2938 | |
| 2939 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { | |
| 2940 Register Rtemp = G4_scratch; | |
| 2941 Register Rcall = Rindex; | |
| 2942 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 2943 | |
| 2944 // get target methodOop & entry point | |
| 2945 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
| 2946 if (vtableEntry::size() % 3 == 0) { | |
| 2947 // scale the vtable index by 12: | |
| 2948 int one_third = vtableEntry::size() / 3; | |
| 2949 __ sll(Rindex, exact_log2(one_third * 1 * wordSize), Rtemp); | |
| 2950 __ sll(Rindex, exact_log2(one_third * 2 * wordSize), Rindex); | |
| 2951 __ add(Rindex, Rtemp, Rindex); | |
| 2952 } else { | |
| 2953 // scale the vtable index by 8: | |
| 2954 __ sll(Rindex, exact_log2(vtableEntry::size() * wordSize), Rindex); | |
| 2955 } | |
| 2956 | |
| 2957 __ add(Rrecv, Rindex, Rrecv); | |
| 2958 __ ld_ptr(Rrecv, base + vtableEntry::method_offset_in_bytes(), G5_method); | |
| 2959 | |
| 2960 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 2961 } | |
| 2962 | |
| 2963 void TemplateTable::invokevirtual(int byte_no) { | |
| 2964 transition(vtos, vtos); | |
| 1565 | 2965 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 2966 |
| 2967 Register Rscratch = G3_scratch; | |
| 2968 Register Rtemp = G4_scratch; | |
| 2969 Register Rret = Lscratch; | |
| 2970 Register Rrecv = G5_method; | |
| 2971 Label notFinal; | |
| 2972 | |
| 1565 | 2973 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
| 0 | 2974 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 2975 | |
| 2976 // Check for vfinal | |
| 2977 __ set((1 << ConstantPoolCacheEntry::vfinalMethod), G4_scratch); | |
| 2978 __ btst(Rret, G4_scratch); | |
| 2979 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 2980 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
| 2981 | |
| 2982 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
| 2983 | |
| 2984 invokevfinal_helper(Rscratch, Rret); | |
| 2985 | |
| 2986 __ bind(notFinal); | |
| 2987 | |
| 2988 __ mov(G5_method, Rscratch); // better scratch register | |
| 2989 __ load_receiver(G4_scratch, O0); // gets receiverOop | |
| 2990 // receiver is in O0 | |
| 2991 __ verify_oop(O0); | |
| 2992 | |
| 2993 // get return address | |
| 727 | 2994 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 2995 __ set(table, Rtemp); | |
| 0 | 2996 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 2997 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 2998 ConstantPoolCacheEntry::verify_tosBits(); | |
| 2999 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3000 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3001 | |
| 3002 // get receiver klass | |
| 3003 __ null_check(O0, oopDesc::klass_offset_in_bytes()); | |
|
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3004 __ load_klass(O0, Rrecv); |
| 0 | 3005 __ verify_oop(Rrecv); |
| 3006 | |
| 3007 __ profile_virtual_call(Rrecv, O4); | |
| 3008 | |
| 3009 generate_vtable_call(Rrecv, Rscratch, Rret); | |
| 3010 } | |
| 3011 | |
| 3012 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3013 transition(vtos, vtos); | |
| 1565 | 3014 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3015 |
| 3016 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
| 1565 | 3017 /*is_invokevfinal*/true, false); |
| 0 | 3018 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3019 invokevfinal_helper(G3_scratch, Lscratch); | |
| 3020 } | |
| 3021 | |
| 3022 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
| 3023 Register Rtemp = G4_scratch; | |
| 3024 | |
| 3025 __ verify_oop(G5_method); | |
| 3026 | |
| 3027 // Load receiver from stack slot | |
| 727 | 3028 __ lduh(G5_method, in_bytes(methodOopDesc::size_of_parameters_offset()), G4_scratch); |
| 0 | 3029 __ load_receiver(G4_scratch, O0); |
| 3030 | |
| 3031 // receiver NULL check | |
| 3032 __ null_check(O0); | |
| 3033 | |
| 3034 __ profile_final_call(O4); | |
| 3035 | |
| 3036 // get return address | |
| 727 | 3037 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3038 __ set(table, Rtemp); | |
| 0 | 3039 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 3040 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3041 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3042 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3043 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3044 | |
| 3045 | |
| 3046 // do the call | |
| 3047 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3048 } | |
| 3049 | |
| 3050 void TemplateTable::invokespecial(int byte_no) { | |
| 3051 transition(vtos, vtos); | |
| 1565 | 3052 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3053 |
| 3054 Register Rscratch = G3_scratch; | |
| 3055 Register Rtemp = G4_scratch; | |
| 3056 Register Rret = Lscratch; | |
| 3057 | |
| 1565 | 3058 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, /*virtual*/ false, false, false); |
| 0 | 3059 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3060 | |
| 3061 __ verify_oop(G5_method); | |
| 3062 | |
| 727 | 3063 __ lduh(G5_method, in_bytes(methodOopDesc::size_of_parameters_offset()), G4_scratch); |
| 0 | 3064 __ load_receiver(G4_scratch, O0); |
| 3065 | |
| 3066 // receiver NULL check | |
| 3067 __ null_check(O0); | |
| 3068 | |
| 3069 __ profile_call(O4); | |
| 3070 | |
| 3071 // get return address | |
| 727 | 3072 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3073 __ set(table, Rtemp); | |
| 0 | 3074 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 3075 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3076 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3077 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3078 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3079 | |
| 3080 // do the call | |
| 3081 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3082 } | |
| 3083 | |
| 3084 void TemplateTable::invokestatic(int byte_no) { | |
| 3085 transition(vtos, vtos); | |
| 1565 | 3086 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3087 |
| 3088 Register Rscratch = G3_scratch; | |
| 3089 Register Rtemp = G4_scratch; | |
| 3090 Register Rret = Lscratch; | |
| 3091 | |
| 1565 | 3092 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, /*virtual*/ false, false, false); |
| 0 | 3093 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3094 | |
| 3095 __ verify_oop(G5_method); | |
| 3096 | |
| 3097 __ profile_call(O4); | |
| 3098 | |
| 3099 // get return address | |
| 727 | 3100 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3101 __ set(table, Rtemp); | |
| 0 | 3102 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 3103 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3104 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3105 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3106 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3107 | |
| 3108 // do the call | |
| 3109 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3110 } | |
| 3111 | |
| 3112 | |
| 3113 void TemplateTable::invokeinterface_object_method(Register RklassOop, | |
| 3114 Register Rcall, | |
| 3115 Register Rret, | |
| 3116 Register Rflags) { | |
| 3117 Register Rscratch = G4_scratch; | |
| 3118 Register Rindex = Lscratch; | |
| 3119 | |
| 3120 assert_different_registers(Rscratch, Rindex, Rret); | |
| 3121 | |
| 3122 Label notFinal; | |
| 3123 | |
| 3124 // Check for vfinal | |
| 3125 __ set((1 << ConstantPoolCacheEntry::vfinalMethod), Rscratch); | |
| 3126 __ btst(Rflags, Rscratch); | |
| 3127 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 3128 __ delayed()->nop(); | |
| 3129 | |
| 3130 __ profile_final_call(O4); | |
| 3131 | |
| 3132 // do the call - the index (f2) contains the methodOop | |
| 3133 assert_different_registers(G5_method, Gargs, Rcall); | |
| 3134 __ mov(Rindex, G5_method); | |
| 3135 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3136 __ bind(notFinal); | |
| 3137 | |
| 3138 __ profile_virtual_call(RklassOop, O4); | |
| 3139 generate_vtable_call(RklassOop, Rindex, Rret); | |
| 3140 } | |
| 3141 | |
| 3142 | |
| 3143 void TemplateTable::invokeinterface(int byte_no) { | |
| 3144 transition(vtos, vtos); | |
| 1565 | 3145 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3146 |
| 3147 Register Rscratch = G4_scratch; | |
| 3148 Register Rret = G3_scratch; | |
| 3149 Register Rindex = Lscratch; | |
| 3150 Register Rinterface = G1_scratch; | |
| 3151 Register RklassOop = G5_method; | |
| 3152 Register Rflags = O1; | |
| 3153 assert_different_registers(Rscratch, G5_method); | |
| 3154 | |
| 1565 | 3155 load_invoke_cp_cache_entry(byte_no, Rinterface, Rindex, Rflags, /*virtual*/ false, false, false); |
| 0 | 3156 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3157 | |
| 3158 // get receiver | |
| 3159 __ and3(Rflags, 0xFF, Rscratch); // gets number of parameters | |
| 3160 __ load_receiver(Rscratch, O0); | |
| 3161 __ verify_oop(O0); | |
| 3162 | |
| 3163 __ mov(Rflags, Rret); | |
| 3164 | |
| 3165 // get return address | |
| 727 | 3166 AddressLiteral table(Interpreter::return_5_addrs_by_index_table()); |
| 3167 __ set(table, Rscratch); | |
| 0 | 3168 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type |
| 3169 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3170 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3171 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3172 __ ld_ptr(Rscratch, Rret, Rret); // get return address | |
| 3173 | |
| 3174 // get receiver klass | |
| 3175 __ null_check(O0, oopDesc::klass_offset_in_bytes()); | |
|
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6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
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0
diff
changeset
|
3176 __ load_klass(O0, RklassOop); |
| 0 | 3177 __ verify_oop(RklassOop); |
| 3178 | |
| 3179 // Special case of invokeinterface called for virtual method of | |
| 3180 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3181 // This code isn't produced by javac, but could be produced by | |
| 3182 // another compliant java compiler. | |
| 3183 Label notMethod; | |
| 3184 __ set((1 << ConstantPoolCacheEntry::methodInterface), Rscratch); | |
| 3185 __ btst(Rflags, Rscratch); | |
| 3186 __ br(Assembler::zero, false, Assembler::pt, notMethod); | |
| 3187 __ delayed()->nop(); | |
| 3188 | |
| 3189 invokeinterface_object_method(RklassOop, Rinterface, Rret, Rflags); | |
| 3190 | |
| 3191 __ bind(notMethod); | |
| 3192 | |
| 3193 __ profile_virtual_call(RklassOop, O4); | |
| 3194 | |
| 3195 // | |
| 3196 // find entry point to call | |
| 3197 // | |
| 3198 | |
| 3199 // compute start of first itableOffsetEntry (which is at end of vtable) | |
| 3200 const int base = instanceKlass::vtable_start_offset() * wordSize; | |
| 3201 Label search; | |
| 3202 Register Rtemp = Rflags; | |
| 3203 | |
| 727 | 3204 __ ld(RklassOop, instanceKlass::vtable_length_offset() * wordSize, Rtemp); |
| 0 | 3205 if (align_object_offset(1) > 1) { |
| 3206 __ round_to(Rtemp, align_object_offset(1)); | |
| 3207 } | |
| 3208 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
| 3209 if (Assembler::is_simm13(base)) { | |
| 3210 __ add(Rtemp, base, Rtemp); | |
| 3211 } else { | |
| 3212 __ set(base, Rscratch); | |
| 3213 __ add(Rscratch, Rtemp, Rtemp); | |
| 3214 } | |
| 3215 __ add(RklassOop, Rtemp, Rscratch); | |
| 3216 | |
| 3217 __ bind(search); | |
| 3218 | |
| 3219 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
| 3220 { | |
| 3221 Label ok; | |
| 3222 | |
| 3223 // Check that entry is non-null. Null entries are probably a bytecode | |
| 605 | 3224 // problem. If the interface isn't implemented by the receiver class, |
| 0 | 3225 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
| 3226 // this too but that's only if the entry isn't already resolved, so we | |
| 3227 // need to check again. | |
| 3839 | 3228 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
| 0 | 3229 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
| 3230 __ should_not_reach_here(); | |
| 3231 __ bind(ok); | |
| 3232 __ verify_oop(Rtemp); | |
| 3233 } | |
| 3234 | |
| 3235 __ verify_oop(Rinterface); | |
| 3236 | |
| 3237 __ cmp(Rinterface, Rtemp); | |
| 3238 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
| 3239 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
| 3240 | |
| 3241 // entry found and Rscratch points to it | |
| 3242 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
| 3243 | |
| 3244 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
| 3245 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
| 3246 __ add(Rscratch, Rindex, Rscratch); | |
| 3247 __ ld_ptr(RklassOop, Rscratch, G5_method); | |
| 3248 | |
| 3249 // Check for abstract method error. | |
| 3250 { | |
| 3251 Label ok; | |
| 3839 | 3252 __ br_notnull_short(G5_method, Assembler::pt, ok); |
| 0 | 3253 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
| 3254 __ should_not_reach_here(); | |
| 3255 __ bind(ok); | |
| 3256 } | |
| 3257 | |
| 3258 Register Rcall = Rinterface; | |
| 3259 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 3260 | |
| 3261 __ verify_oop(G5_method); | |
| 3262 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3263 | |
| 3264 } | |
| 3265 | |
| 3266 | |
|
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parents:
605
diff
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|
3267 void TemplateTable::invokedynamic(int byte_no) { |
|
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6655646: dynamic languages need dynamically linked call sites
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605
diff
changeset
|
3268 transition(vtos, vtos); |
| 1565 | 3269 assert(byte_no == f1_oop, "use this argument"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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605
diff
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|
3270 |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3271 if (!EnableInvokeDynamic) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3272 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3273 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3274 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
605
diff
changeset
|
3275 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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605
diff
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|
3276 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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parents:
605
diff
changeset
|
3277 // the call_VM checks for exception, so we should never return here. |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3278 __ should_not_reach_here(); |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3279 return; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
605
diff
changeset
|
3280 } |
|
be93aad57795
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diff
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|
3281 |
| 1503 | 3282 // G5: CallSite object (f1) |
| 3283 // XX: unused (f2) | |
| 3284 // XX: flags (unused) | |
| 3285 | |
| 3286 Register G5_callsite = G5_method; | |
| 3287 Register Rscratch = G3_scratch; | |
| 3288 Register Rtemp = G1_scratch; | |
| 3289 Register Rret = Lscratch; | |
| 3290 | |
| 1565 | 3291 load_invoke_cp_cache_entry(byte_no, G5_callsite, noreg, Rret, |
| 3292 /*virtual*/ false, /*vfinal*/ false, /*indy*/ true); | |
| 1503 | 3293 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3294 | |
| 3295 // profile this call | |
| 3296 __ profile_call(O4); | |
| 3297 | |
| 3298 // get return address | |
| 3299 AddressLiteral table(Interpreter::return_5_addrs_by_index_table()); | |
| 3300 __ set(table, Rtemp); | |
| 3301 __ srl(Rret, ConstantPoolCacheEntry::tosBits, Rret); // get return type | |
| 3302 // Make sure we don't need to mask Rret for tosBits after the above shift | |
| 3303 ConstantPoolCacheEntry::verify_tosBits(); | |
| 3304 __ sll(Rret, LogBytesPerWord, Rret); | |
| 3305 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3306 | |
|
3279
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2416
diff
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|
3307 __ verify_oop(G5_callsite); |
|
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diff
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|
3308 __ load_heap_oop(G5_callsite, __ delayed_value(java_lang_invoke_CallSite::target_offset_in_bytes, Rscratch), G3_method_handle); |
| 1503 | 3309 __ null_check(G3_method_handle); |
|
3279
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|
3310 __ verify_oop(G3_method_handle); |
| 1503 | 3311 |
| 3312 // Adjust Rret first so Llast_SP can be same as Rret | |
| 3313 __ add(Rret, -frame::pc_return_offset, O7); | |
| 3314 __ add(Lesp, BytesPerWord, Gargs); // setup parameter pointer | |
| 3315 __ jump_to_method_handle_entry(G3_method_handle, Rtemp, /* emit_delayed_nop */ false); | |
| 3316 // Record SP so we can remove any stack space allocated by adapter transition | |
| 3317 __ delayed()->mov(SP, Llast_SP); | |
|
726
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605
diff
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|
3318 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
3319 |
|
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diff
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|
3320 |
| 0 | 3321 //---------------------------------------------------------------------------------------------------- |
| 3322 // Allocation | |
| 3323 | |
| 3324 void TemplateTable::_new() { | |
| 3325 transition(vtos, atos); | |
| 3326 | |
| 3327 Label slow_case; | |
| 3328 Label done; | |
| 3329 Label initialize_header; | |
| 3330 Label initialize_object; // including clearing the fields | |
| 3331 | |
| 3332 Register RallocatedObject = Otos_i; | |
| 3333 Register RinstanceKlass = O1; | |
| 3334 Register Roffset = O3; | |
| 3335 Register Rscratch = O4; | |
| 3336 | |
| 3337 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3338 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
| 3339 // make sure the class we're about to instantiate has been resolved | |
|
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6953477: Increase portability and flexibility of building Hotspot
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|
3340 // This is done before loading instanceKlass to be consistent with the order |
|
126ea7725993
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diff
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|
3341 // how Constant Pool is updated (see constantPoolOopDesc::klass_at_put) |
| 0 | 3342 __ add(G3_scratch, typeArrayOopDesc::header_size(T_BYTE) * wordSize, G3_scratch); |
| 3343 __ ldub(G3_scratch, Roffset, G3_scratch); | |
| 3344 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3345 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3346 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
|
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diff
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|
3347 // get instanceKlass |
| 0 | 3348 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
| 3349 __ add(Roffset, sizeof(constantPoolOopDesc), Roffset); | |
| 3350 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); | |
| 3351 | |
| 3352 // make sure klass is fully initialized: | |
| 3353 __ ld(RinstanceKlass, instanceKlass::init_state_offset_in_bytes() + sizeof(oopDesc), G3_scratch); | |
| 3354 __ cmp(G3_scratch, instanceKlass::fully_initialized); | |
| 3355 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3356 __ delayed()->ld(RinstanceKlass, Klass::layout_helper_offset_in_bytes() + sizeof(oopDesc), Roffset); | |
| 3357 | |
| 3358 // get instance_size in instanceKlass (already aligned) | |
| 3359 //__ ld(RinstanceKlass, Klass::layout_helper_offset_in_bytes() + sizeof(oopDesc), Roffset); | |
| 3360 | |
| 3361 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
| 3362 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
| 3363 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
| 3364 __ delayed()->nop(); | |
| 3365 | |
| 3366 // allocate the instance | |
| 3367 // 1) Try to allocate in the TLAB | |
| 3368 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
| 3369 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3370 // (creates a new TLAB, etc.) | |
| 3371 | |
| 3372 const bool allow_shared_alloc = | |
| 3373 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3374 | |
| 3375 if(UseTLAB) { | |
| 3376 Register RoldTopValue = RallocatedObject; | |
| 3892 | 3377 Register RtlabWasteLimitValue = G3_scratch; |
| 0 | 3378 Register RnewTopValue = G1_scratch; |
| 3379 Register RendValue = Rscratch; | |
| 3380 Register RfreeValue = RnewTopValue; | |
| 3381 | |
| 3382 // check if we can allocate in the TLAB | |
| 3383 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
| 3384 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
| 3385 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3386 | |
| 3387 // if there is enough space, we do not CAS and do not clear | |
| 3388 __ cmp(RnewTopValue, RendValue); | |
| 3389 if(ZeroTLAB) { | |
| 3390 // the fields have already been cleared | |
| 3391 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
| 3392 } else { | |
| 3393 // initialize both the header and fields | |
| 3394 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
| 3395 } | |
| 3396 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
| 3397 | |
| 3398 if (allow_shared_alloc) { | |
|
2100
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1972
diff
changeset
|
3399 // Check if tlab should be discarded (refill_waste_limit >= free) |
|
b1a2afa37ec4
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diff
changeset
|
3400 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); |
|
b1a2afa37ec4
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diff
changeset
|
3401 __ sub(RendValue, RoldTopValue, RfreeValue); |
| 0 | 3402 #ifdef _LP64 |
|
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diff
changeset
|
3403 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3404 #else |
|
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3405 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3406 #endif |
| 3839 | 3407 __ cmp_and_brx_short(RtlabWasteLimitValue, RfreeValue, Assembler::greaterEqualUnsigned, Assembler::pt, slow_case); // tlab waste is small |
|
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3408 |
|
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3409 // increment waste limit to prevent getting stuck on this slow path |
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3410 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
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|
3411 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
| 0 | 3412 } else { |
| 3413 // No allocation in the shared eden. | |
| 3839 | 3414 __ ba_short(slow_case); |
| 0 | 3415 } |
| 3416 } | |
| 3417 | |
| 3418 // Allocation in the shared Eden | |
| 3419 if (allow_shared_alloc) { | |
| 3420 Register RoldTopValue = G1_scratch; | |
| 3421 Register RtopAddr = G3_scratch; | |
| 3422 Register RnewTopValue = RallocatedObject; | |
| 3423 Register RendValue = Rscratch; | |
| 3424 | |
| 3425 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
| 3426 | |
| 3427 Label retry; | |
| 3428 __ bind(retry); | |
| 3429 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
| 3430 __ ld_ptr(RendValue, 0, RendValue); | |
| 3431 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
| 3432 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3433 | |
| 3434 // RnewTopValue contains the top address after the new object | |
| 3435 // has been allocated. | |
| 3839 | 3436 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
| 0 | 3437 |
| 3438 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
| 3439 VM_Version::v9_instructions_work() ? NULL : | |
| 3440 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
| 3441 | |
| 3442 // if someone beat us on the allocation, try again, otherwise continue | |
| 3839 | 3443 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
|
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3444 |
|
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3445 // bump total bytes allocated by this thread |
|
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3446 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
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|
3447 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
| 0 | 3448 } |
| 3449 | |
| 3450 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3451 // clear object fields | |
| 3452 __ bind(initialize_object); | |
| 3453 __ deccc(Roffset, sizeof(oopDesc)); | |
| 3454 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
| 3455 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
| 3456 | |
| 3457 // initialize remaining object fields | |
| 3892 | 3458 if (UseBlockZeroing) { |
| 3459 // Use BIS for zeroing | |
| 3460 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
| 3461 } else { | |
| 3462 Label loop; | |
| 0 | 3463 __ subcc(Roffset, wordSize, Roffset); |
| 3464 __ bind(loop); | |
| 3465 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
| 3466 __ st_ptr(G0, G3_scratch, Roffset); | |
| 3467 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
| 3468 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
| 3469 } | |
| 3839 | 3470 __ ba_short(initialize_header); |
| 0 | 3471 } |
| 3472 | |
| 3473 // slow case | |
| 3474 __ bind(slow_case); | |
| 3475 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3476 __ get_constant_pool(O1); | |
| 3477 | |
| 3478 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
| 3479 | |
| 3839 | 3480 __ ba_short(done); |
| 0 | 3481 |
| 3482 // Initialize the header: mark, klass | |
| 3483 __ bind(initialize_header); | |
| 3484 | |
| 3485 if (UseBiasedLocking) { | |
| 3486 __ ld_ptr(RinstanceKlass, Klass::prototype_header_offset_in_bytes() + sizeof(oopDesc), G4_scratch); | |
| 3487 } else { | |
| 3488 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
| 3489 } | |
| 3490 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
|
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3491 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
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3492 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
| 0 | 3493 |
| 3494 { | |
| 3495 SkipIfEqual skip_if( | |
| 3496 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
| 3497 // Trigger dtrace event | |
| 3498 __ push(atos); | |
| 3499 __ call_VM_leaf(noreg, | |
| 3500 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
| 3501 __ pop(atos); | |
| 3502 } | |
| 3503 | |
| 3504 // continue | |
| 3505 __ bind(done); | |
| 3506 } | |
| 3507 | |
| 3508 | |
| 3509 | |
| 3510 void TemplateTable::newarray() { | |
| 3511 transition(itos, atos); | |
| 3512 __ ldub(Lbcp, 1, O1); | |
| 3513 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
| 3514 } | |
| 3515 | |
| 3516 | |
| 3517 void TemplateTable::anewarray() { | |
| 3518 transition(itos, atos); | |
| 3519 __ get_constant_pool(O1); | |
| 3520 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3521 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
| 3522 } | |
| 3523 | |
| 3524 | |
| 3525 void TemplateTable::arraylength() { | |
| 3526 transition(atos, itos); | |
| 3527 Label ok; | |
| 3528 __ verify_oop(Otos_i); | |
| 3529 __ tst(Otos_i); | |
| 3530 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
| 3531 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
| 3532 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3533 } | |
| 3534 | |
| 3535 | |
| 3536 void TemplateTable::checkcast() { | |
| 3537 transition(atos, atos); | |
| 3538 Label done, is_null, quicked, cast_ok, resolved; | |
| 3539 Register Roffset = G1_scratch; | |
| 3540 Register RobjKlass = O5; | |
| 3541 Register RspecifiedKlass = O4; | |
| 3542 | |
| 3543 // Check for casting a NULL | |
| 3839 | 3544 __ br_null_short(Otos_i, Assembler::pn, is_null); |
| 0 | 3545 |
| 3546 // Get value klass in RobjKlass | |
|
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|
3547 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3548 |
| 3549 // Get constant pool tag | |
| 3550 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3551 | |
| 3552 // See if the checkcast has been quickened | |
| 3553 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
| 3554 __ add(G3_scratch, typeArrayOopDesc::header_size(T_BYTE) * wordSize, G3_scratch); | |
| 3555 __ ldub(G3_scratch, Roffset, G3_scratch); | |
| 3556 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3557 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3558 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3559 | |
| 3560 __ push_ptr(); // save receiver for result, and for GC | |
| 3561 call_VM(RspecifiedKlass, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); | |
| 3562 __ pop_ptr(Otos_i, G3_scratch); // restore receiver | |
| 3563 | |
| 3839 | 3564 __ ba_short(resolved); |
| 0 | 3565 |
| 3566 // Extract target class from constant pool | |
| 3567 __ bind(quicked); | |
| 3568 __ add(Roffset, sizeof(constantPoolOopDesc), Roffset); | |
| 3569 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3570 __ bind(resolved); | |
|
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|
3571 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3572 |
| 3573 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3574 // failure. Throw exception if failure. | |
| 3575 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
| 3576 | |
| 3577 // Not a subtype; so must throw exception | |
| 3578 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
| 3579 | |
| 3580 __ bind(cast_ok); | |
| 3581 | |
| 3582 if (ProfileInterpreter) { | |
| 3839 | 3583 __ ba_short(done); |
| 0 | 3584 } |
| 3585 __ bind(is_null); | |
| 3586 __ profile_null_seen(G3_scratch); | |
| 3587 __ bind(done); | |
| 3588 } | |
| 3589 | |
| 3590 | |
| 3591 void TemplateTable::instanceof() { | |
| 3592 Label done, is_null, quicked, resolved; | |
| 3593 transition(atos, itos); | |
| 3594 Register Roffset = G1_scratch; | |
| 3595 Register RobjKlass = O5; | |
| 3596 Register RspecifiedKlass = O4; | |
| 3597 | |
| 3598 // Check for casting a NULL | |
| 3839 | 3599 __ br_null_short(Otos_i, Assembler::pt, is_null); |
| 0 | 3600 |
| 3601 // Get value klass in RobjKlass | |
|
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|
3602 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3603 |
| 3604 // Get constant pool tag | |
| 3605 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3606 | |
| 3607 // See if the checkcast has been quickened | |
| 3608 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
| 3609 __ add(G3_scratch, typeArrayOopDesc::header_size(T_BYTE) * wordSize, G3_scratch); | |
| 3610 __ ldub(G3_scratch, Roffset, G3_scratch); | |
| 3611 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3612 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3613 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3614 | |
| 3615 __ push_ptr(); // save receiver for result, and for GC | |
| 3616 call_VM(RspecifiedKlass, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); | |
| 3617 __ pop_ptr(Otos_i, G3_scratch); // restore receiver | |
| 3618 | |
| 3839 | 3619 __ ba_short(resolved); |
| 0 | 3620 |
| 3621 // Extract target class from constant pool | |
| 3622 __ bind(quicked); | |
| 3623 __ add(Roffset, sizeof(constantPoolOopDesc), Roffset); | |
| 3624 __ get_constant_pool(Lscratch); | |
| 3625 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3626 __ bind(resolved); | |
|
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|
3627 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3628 |
| 3629 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3630 // failure. Return 0 if failure. | |
| 3631 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
| 3632 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
| 3633 // Not a subtype; return 0; | |
| 3634 __ clr( Otos_i ); | |
| 3635 | |
| 3636 if (ProfileInterpreter) { | |
| 3839 | 3637 __ ba_short(done); |
| 0 | 3638 } |
| 3639 __ bind(is_null); | |
| 3640 __ profile_null_seen(G3_scratch); | |
| 3641 __ bind(done); | |
| 3642 } | |
| 3643 | |
| 3644 void TemplateTable::_breakpoint() { | |
| 3645 | |
| 3646 // Note: We get here even if we are single stepping.. | |
| 3647 // jbug inists on setting breakpoints at every bytecode | |
| 3648 // even if we are in single step mode. | |
| 3649 | |
| 3650 transition(vtos, vtos); | |
| 3651 // get the unpatched byte code | |
| 3652 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
| 3653 __ mov(O0, Lbyte_code); | |
| 3654 | |
| 3655 // post the breakpoint event | |
| 3656 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
| 3657 | |
| 3658 // complete the execution of original bytecode | |
| 3659 __ dispatch_normal(vtos); | |
| 3660 } | |
| 3661 | |
| 3662 | |
| 3663 //---------------------------------------------------------------------------------------------------- | |
| 3664 // Exceptions | |
| 3665 | |
| 3666 void TemplateTable::athrow() { | |
| 3667 transition(atos, vtos); | |
| 3668 | |
| 3669 // This works because exception is cached in Otos_i which is same as O0, | |
| 3670 // which is same as what throw_exception_entry_expects | |
| 3671 assert(Otos_i == Oexception, "see explanation above"); | |
| 3672 | |
| 3673 __ verify_oop(Otos_i); | |
| 3674 __ null_check(Otos_i); | |
| 3675 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
| 3676 } | |
| 3677 | |
| 3678 | |
| 3679 //---------------------------------------------------------------------------------------------------- | |
| 3680 // Synchronization | |
| 3681 | |
| 3682 | |
| 3683 // See frame_sparc.hpp for monitor block layout. | |
| 3684 // Monitor elements are dynamically allocated by growing stack as needed. | |
| 3685 | |
| 3686 void TemplateTable::monitorenter() { | |
| 3687 transition(atos, vtos); | |
| 3688 __ verify_oop(Otos_i); | |
| 3689 // Try to acquire a lock on the object | |
| 3690 // Repeat until succeeded (i.e., until | |
| 3691 // monitorenter returns true). | |
| 3692 | |
| 3693 { Label ok; | |
| 3694 __ tst(Otos_i); | |
| 3695 __ throw_if_not_1_x( Assembler::notZero, ok); | |
| 3696 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
| 3697 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3698 } | |
| 3699 | |
| 3700 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
| 3701 | |
| 3702 // find a free slot in the monitor block | |
| 3703 | |
| 3704 | |
| 3705 // initialize entry pointer | |
| 3706 __ clr(O1); // points to free slot or NULL | |
| 3707 | |
| 3708 { | |
| 3709 Label entry, loop, exit; | |
| 3710 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3711 __ ba( entry ); |
| 0 | 3712 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
| 3713 | |
| 3714 | |
| 3715 __ bind( loop ); | |
| 3716 | |
| 3717 __ verify_oop(O4); // verify each monitor's oop | |
| 3718 __ tst(O4); // is this entry unused? | |
| 3719 if (VM_Version::v9_instructions_work()) | |
| 3720 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
| 3721 else { | |
| 3722 Label L; | |
| 3723 __ br( Assembler::zero, true, Assembler::pn, L ); | |
| 3724 __ delayed()->mov(O3, O1); // rememeber this one if match | |
| 3725 __ bind(L); | |
| 3726 } | |
| 3727 | |
| 3728 __ cmp(O4, O0); // check if current entry is for same object | |
| 3729 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
| 3730 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
| 3731 | |
| 3732 __ bind( entry ); | |
| 3733 | |
| 3734 __ cmp( O3, O2 ); | |
| 3735 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3736 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3737 | |
| 3738 __ bind( exit ); | |
| 3739 } | |
| 3740 | |
| 3741 { Label allocated; | |
| 3742 | |
| 3743 // found free slot? | |
| 3839 | 3744 __ br_notnull_short(O1, Assembler::pn, allocated); |
| 0 | 3745 |
| 3746 __ add_monitor_to_stack( false, O2, O3 ); | |
| 3747 __ mov(Lmonitors, O1); | |
| 3748 | |
| 3749 __ bind(allocated); | |
| 3750 } | |
| 3751 | |
| 3752 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3753 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3754 __ inc(Lbcp); | |
| 3755 | |
| 3756 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
| 3757 __ lock_object(O1, O0); | |
| 3758 | |
| 3759 // check if there's enough space on the stack for the monitors after locking | |
| 3760 __ generate_stack_overflow_check(0); | |
| 3761 | |
| 3762 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3763 __ dispatch_next(vtos); | |
| 3764 } | |
| 3765 | |
| 3766 | |
| 3767 void TemplateTable::monitorexit() { | |
| 3768 transition(atos, vtos); | |
| 3769 __ verify_oop(Otos_i); | |
| 3770 __ tst(Otos_i); | |
| 3771 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
| 3772 | |
| 3773 assert(O0 == Otos_i, "just checking"); | |
| 3774 | |
| 3775 { Label entry, loop, found; | |
| 3776 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3777 __ ba(entry); |
| 0 | 3778 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
| 3779 // By using a local it survives the call to the C routine. | |
| 3780 __ delayed()->mov( Lmonitors, Lscratch ); | |
| 3781 | |
| 3782 __ bind( loop ); | |
| 3783 | |
| 3784 __ verify_oop(O4); // verify each monitor's oop | |
| 3785 __ cmp(O4, O0); // check if current entry is for desired object | |
| 3786 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
| 3787 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
| 3788 | |
| 3789 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
| 3790 | |
| 3791 __ bind( entry ); | |
| 3792 | |
| 3793 __ cmp( Lscratch, O2 ); | |
| 3794 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3795 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3796 | |
| 3797 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3798 __ should_not_reach_here(); | |
| 3799 | |
| 3800 __ bind(found); | |
| 3801 } | |
| 3802 __ unlock_object(O1); | |
| 3803 } | |
| 3804 | |
| 3805 | |
| 3806 //---------------------------------------------------------------------------------------------------- | |
| 3807 // Wide instructions | |
| 3808 | |
| 3809 void TemplateTable::wide() { | |
| 3810 transition(vtos, vtos); | |
| 3811 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
| 3812 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
| 727 | 3813 AddressLiteral ep(Interpreter::_wentry_point); |
| 3814 __ set(ep, G4_scratch); | |
| 3815 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
| 0 | 3816 __ jmp(G3_scratch, G0); |
| 3817 __ delayed()->nop(); | |
| 3818 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
| 3819 } | |
| 3820 | |
| 3821 | |
| 3822 //---------------------------------------------------------------------------------------------------- | |
| 3823 // Multi arrays | |
| 3824 | |
| 3825 void TemplateTable::multianewarray() { | |
| 3826 transition(vtos, atos); | |
| 3827 // put ndims * wordSize into Lscratch | |
| 3828 __ ldub( Lbcp, 3, Lscratch); | |
| 1506 | 3829 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
| 0 | 3830 // Lesp points past last_dim, so set to O1 to first_dim address |
| 3831 __ add( Lesp, Lscratch, O1); | |
| 3832 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
| 3833 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
| 3834 } | |
| 3835 #endif /* !CC_INTERP */ |