Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 10108:9500809ceead
Merge
| author | jiangli |
|---|---|
| date | Thu, 18 Apr 2013 17:00:16 -0400 |
| parents | f2e682ef3156 aeaca88565e6 |
| children | 63e44cdabb91 46c544b8fbfc |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 8104 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "interpreter/interpreter.hpp" | |
| 27 #include "interpreter/interpreterRuntime.hpp" | |
| 28 #include "interpreter/templateTable.hpp" | |
| 29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
| 1972 | 31 #include "oops/objArrayKlass.hpp" |
| 32 #include "oops/oop.inline.hpp" | |
| 33 #include "prims/methodHandles.hpp" | |
| 34 #include "runtime/sharedRuntime.hpp" | |
| 35 #include "runtime/stubRoutines.hpp" | |
| 36 #include "runtime/synchronizer.hpp" | |
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37 #include "utilities/macros.hpp" |
| 0 | 38 |
| 39 #ifndef CC_INTERP | |
| 40 #define __ _masm-> | |
| 41 | |
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42 // Misc helpers |
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43 |
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44 // Do an oop store like *(base + index + offset) = val |
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45 // index can be noreg, |
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46 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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47 Register base, |
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48 Register index, |
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49 int offset, |
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50 Register val, |
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51 Register tmp, |
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52 BarrierSet::Name barrier, |
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53 bool precise) { |
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54 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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55 assert(index == noreg || offset == 0, "only one offset"); |
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56 switch (barrier) { |
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57 #if INCLUDE_ALL_GCS |
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58 case BarrierSet::G1SATBCT: |
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59 case BarrierSet::G1SATBCTLogging: |
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60 { |
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61 // Load and record the previous value. |
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62 __ g1_write_barrier_pre(base, index, offset, |
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63 noreg /* pre_val */, |
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64 tmp, true /*preserve_o_regs*/); |
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65 |
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66 // G1 barrier needs uncompressed oop for region cross check. |
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67 Register new_val = val; |
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68 if (UseCompressedOops && val != G0) { |
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69 new_val = tmp; |
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70 __ mov(val, new_val); |
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71 } |
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72 |
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73 if (index == noreg ) { |
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74 assert(Assembler::is_simm13(offset), "fix this code"); |
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75 __ store_heap_oop(val, base, offset); |
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76 } else { |
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77 __ store_heap_oop(val, base, index); |
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78 } |
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79 |
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80 // No need for post barrier if storing NULL |
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81 if (val != G0) { |
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82 if (precise) { |
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83 if (index == noreg) { |
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84 __ add(base, offset, base); |
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85 } else { |
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86 __ add(base, index, base); |
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87 } |
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88 } |
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89 __ g1_write_barrier_post(base, new_val, tmp); |
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90 } |
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91 } |
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92 break; |
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93 #endif // INCLUDE_ALL_GCS |
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94 case BarrierSet::CardTableModRef: |
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95 case BarrierSet::CardTableExtension: |
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96 { |
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97 if (index == noreg ) { |
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98 assert(Assembler::is_simm13(offset), "fix this code"); |
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99 __ store_heap_oop(val, base, offset); |
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100 } else { |
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101 __ store_heap_oop(val, base, index); |
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102 } |
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103 // No need for post barrier if storing NULL |
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104 if (val != G0) { |
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105 if (precise) { |
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106 if (index == noreg) { |
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107 __ add(base, offset, base); |
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108 } else { |
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109 __ add(base, index, base); |
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110 } |
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111 } |
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112 __ card_write_barrier_post(base, val, tmp); |
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113 } |
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114 } |
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115 break; |
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116 case BarrierSet::ModRef: |
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117 case BarrierSet::Other: |
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118 ShouldNotReachHere(); |
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119 break; |
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120 default : |
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121 ShouldNotReachHere(); |
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122 |
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123 } |
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124 } |
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125 |
| 0 | 126 |
| 127 //---------------------------------------------------------------------------------------------------- | |
| 128 // Platform-dependent initialization | |
| 129 | |
| 130 void TemplateTable::pd_initialize() { | |
| 131 // (none) | |
| 132 } | |
| 133 | |
| 134 | |
| 135 //---------------------------------------------------------------------------------------------------- | |
| 136 // Condition conversion | |
| 137 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
| 138 switch (cc) { | |
| 139 case TemplateTable::equal : return Assembler::notEqual; | |
| 140 case TemplateTable::not_equal : return Assembler::equal; | |
| 141 case TemplateTable::less : return Assembler::greaterEqual; | |
| 142 case TemplateTable::less_equal : return Assembler::greater; | |
| 143 case TemplateTable::greater : return Assembler::lessEqual; | |
| 144 case TemplateTable::greater_equal: return Assembler::less; | |
| 145 } | |
| 146 ShouldNotReachHere(); | |
| 147 return Assembler::zero; | |
| 148 } | |
| 149 | |
| 150 //---------------------------------------------------------------------------------------------------- | |
| 151 // Miscelaneous helper routines | |
| 152 | |
| 153 | |
| 154 Address TemplateTable::at_bcp(int offset) { | |
| 155 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
| 727 | 156 return Address(Lbcp, offset); |
| 0 | 157 } |
| 158 | |
| 159 | |
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160 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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161 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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162 int byte_no) { |
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163 // With sharing on, may need to test Method* flag. |
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164 if (!RewriteBytecodes) return; |
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165 Label L_patch_done; |
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166 |
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167 switch (bc) { |
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168 case Bytecodes::_fast_aputfield: |
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169 case Bytecodes::_fast_bputfield: |
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170 case Bytecodes::_fast_cputfield: |
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171 case Bytecodes::_fast_dputfield: |
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172 case Bytecodes::_fast_fputfield: |
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173 case Bytecodes::_fast_iputfield: |
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174 case Bytecodes::_fast_lputfield: |
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175 case Bytecodes::_fast_sputfield: |
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176 { |
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177 // We skip bytecode quickening for putfield instructions when |
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178 // the put_code written to the constant pool cache is zero. |
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179 // This is required so that every execution of this instruction |
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180 // calls out to InterpreterRuntime::resolve_get_put to do |
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181 // additional, required work. |
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182 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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183 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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184 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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185 __ set(bc, bc_reg); |
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186 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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187 } |
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188 break; |
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189 default: |
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190 assert(byte_no == -1, "sanity"); |
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191 if (load_bc_into_bc_reg) { |
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192 __ set(bc, bc_reg); |
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193 } |
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194 } |
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195 |
| 0 | 196 if (JvmtiExport::can_post_breakpoint()) { |
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197 Label L_fast_patch; |
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198 __ ldub(at_bcp(0), temp_reg); |
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199 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
| 0 | 200 // perform the quickening, slowly, in the bowels of the breakpoint table |
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201 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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202 __ ba_short(L_patch_done); |
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203 __ bind(L_fast_patch); |
| 0 | 204 } |
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205 |
| 0 | 206 #ifdef ASSERT |
| 207 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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208 Label L_okay; |
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209 __ ldub(at_bcp(0), temp_reg); |
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210 __ cmp(temp_reg, orig_bytecode); |
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211 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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212 __ delayed()->cmp(temp_reg, bc_reg); |
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213 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
| 0 | 214 __ delayed()->nop(); |
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215 __ stop("patching the wrong bytecode"); |
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216 __ bind(L_okay); |
| 0 | 217 #endif |
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218 |
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219 // patch bytecode |
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220 __ stb(bc_reg, at_bcp(0)); |
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221 __ bind(L_patch_done); |
| 0 | 222 } |
| 223 | |
| 224 //---------------------------------------------------------------------------------------------------- | |
| 225 // Individual instructions | |
| 226 | |
| 227 void TemplateTable::nop() { | |
| 228 transition(vtos, vtos); | |
| 229 // nothing to do | |
| 230 } | |
| 231 | |
| 232 void TemplateTable::shouldnotreachhere() { | |
| 233 transition(vtos, vtos); | |
| 234 __ stop("shouldnotreachhere bytecode"); | |
| 235 } | |
| 236 | |
| 237 void TemplateTable::aconst_null() { | |
| 238 transition(vtos, atos); | |
| 239 __ clr(Otos_i); | |
| 240 } | |
| 241 | |
| 242 | |
| 243 void TemplateTable::iconst(int value) { | |
| 244 transition(vtos, itos); | |
| 245 __ set(value, Otos_i); | |
| 246 } | |
| 247 | |
| 248 | |
| 249 void TemplateTable::lconst(int value) { | |
| 250 transition(vtos, ltos); | |
| 251 assert(value >= 0, "check this code"); | |
| 252 #ifdef _LP64 | |
| 253 __ set(value, Otos_l); | |
| 254 #else | |
| 255 __ set(value, Otos_l2); | |
| 256 __ clr( Otos_l1); | |
| 257 #endif | |
| 258 } | |
| 259 | |
| 260 | |
| 261 void TemplateTable::fconst(int value) { | |
| 262 transition(vtos, ftos); | |
| 263 static float zero = 0.0, one = 1.0, two = 2.0; | |
| 264 float* p; | |
| 265 switch( value ) { | |
| 266 default: ShouldNotReachHere(); | |
| 267 case 0: p = &zero; break; | |
| 268 case 1: p = &one; break; | |
| 269 case 2: p = &two; break; | |
| 270 } | |
| 727 | 271 AddressLiteral a(p); |
| 272 __ sethi(a, G3_scratch); | |
| 273 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
| 0 | 274 } |
| 275 | |
| 276 | |
| 277 void TemplateTable::dconst(int value) { | |
| 278 transition(vtos, dtos); | |
| 279 static double zero = 0.0, one = 1.0; | |
| 280 double* p; | |
| 281 switch( value ) { | |
| 282 default: ShouldNotReachHere(); | |
| 283 case 0: p = &zero; break; | |
| 284 case 1: p = &one; break; | |
| 285 } | |
| 727 | 286 AddressLiteral a(p); |
| 287 __ sethi(a, G3_scratch); | |
| 288 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
| 0 | 289 } |
| 290 | |
| 291 | |
| 292 // %%%%% Should factore most snippet templates across platforms | |
| 293 | |
| 294 void TemplateTable::bipush() { | |
| 295 transition(vtos, itos); | |
| 296 __ ldsb( at_bcp(1), Otos_i ); | |
| 297 } | |
| 298 | |
| 299 void TemplateTable::sipush() { | |
| 300 transition(vtos, itos); | |
| 301 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
| 302 } | |
| 303 | |
| 304 void TemplateTable::ldc(bool wide) { | |
| 305 transition(vtos, vtos); | |
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306 Label call_ldc, notInt, isString, notString, notClass, exit; |
| 0 | 307 |
| 308 if (wide) { | |
| 309 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
| 310 } else { | |
| 311 __ ldub(Lbcp, 1, O1); | |
| 312 } | |
| 313 __ get_cpool_and_tags(O0, O2); | |
| 314 | |
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315 const int base_offset = ConstantPool::header_size() * wordSize; |
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316 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 317 |
| 318 // get type from tags | |
| 319 __ add(O2, tags_offset, O2); | |
| 320 __ ldub(O2, O1, O2); | |
| 3839 | 321 |
| 322 // unresolved class? If so, must resolve | |
| 323 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
| 324 | |
| 325 // unresolved class in error state | |
| 326 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
| 0 | 327 |
| 328 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
| 329 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
| 330 __ delayed()->add(O0, base_offset, O0); | |
| 331 | |
| 332 __ bind(call_ldc); | |
| 333 __ set(wide, O1); | |
| 334 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
| 335 __ push(atos); | |
| 3839 | 336 __ ba_short(exit); |
| 0 | 337 |
| 338 __ bind(notClass); | |
| 339 // __ add(O0, base_offset, O0); | |
| 340 __ sll(O1, LogBytesPerWord, O1); | |
| 341 __ cmp(O2, JVM_CONSTANT_Integer); | |
| 342 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
| 343 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
| 344 __ ld(O0, O1, Otos_i); | |
| 345 __ push(itos); | |
| 3839 | 346 __ ba_short(exit); |
| 0 | 347 |
| 348 __ bind(notInt); | |
| 349 // __ cmp(O2, JVM_CONSTANT_String); | |
| 350 __ brx(Assembler::notEqual, true, Assembler::pt, notString); | |
| 351 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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352 __ bind(isString); |
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353 __ stop("string should be rewritten to fast_aldc"); |
| 3839 | 354 __ ba_short(exit); |
| 0 | 355 |
| 356 __ bind(notString); | |
| 357 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
| 358 __ push(ftos); | |
| 359 | |
| 360 __ bind(exit); | |
| 361 } | |
| 362 | |
| 1602 | 363 // Fast path for caching oop constants. |
| 364 // %%% We should use this to handle Class and String constants also. | |
| 365 // %%% It will simplify the ldc/primitive path considerably. | |
| 366 void TemplateTable::fast_aldc(bool wide) { | |
| 367 transition(vtos, atos); | |
| 368 | |
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369 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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370 Label resolved; |
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371 |
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372 // We are resolved if the resolved reference cache entry contains a |
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373 // non-null object (CallSite, etc.) |
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374 assert_different_registers(Otos_i, G3_scratch); |
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375 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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376 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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377 __ tst(Otos_i); |
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378 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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379 __ delayed()->set((int)bytecode(), O1); |
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380 |
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381 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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382 |
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383 // first time invocation - must resolve first |
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384 __ call_VM(Otos_i, entry, O1); |
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385 __ bind(resolved); |
| 1602 | 386 __ verify_oop(Otos_i); |
| 387 } | |
| 388 | |
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389 |
| 0 | 390 void TemplateTable::ldc2_w() { |
| 391 transition(vtos, vtos); | |
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392 Label Long, exit; |
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393 |
| 0 | 394 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
| 395 __ get_cpool_and_tags(O0, O2); | |
| 396 | |
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397 const int base_offset = ConstantPool::header_size() * wordSize; |
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398 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
| 0 | 399 // get type from tags |
| 400 __ add(O2, tags_offset, O2); | |
| 401 __ ldub(O2, O1, O2); | |
| 402 | |
| 403 __ sll(O1, LogBytesPerWord, O1); | |
| 404 __ add(O0, O1, G3_scratch); | |
| 405 | |
| 3839 | 406 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
| 0 | 407 // A double can be placed at word-aligned locations in the constant pool. |
| 408 // Check out Conversions.java for an example. | |
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409 // Also ConstantPool::header_size() is 20, which makes it very difficult |
| 0 | 410 // to double-align double on the constant pool. SG, 11/7/97 |
| 411 #ifdef _LP64 | |
| 412 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
| 413 #else | |
| 414 FloatRegister f = Ftos_d; | |
| 415 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
| 416 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
| 417 f->successor()); | |
| 418 #endif | |
| 419 __ push(dtos); | |
| 3839 | 420 __ ba_short(exit); |
| 0 | 421 |
| 422 __ bind(Long); | |
| 423 #ifdef _LP64 | |
| 424 __ ldx(G3_scratch, base_offset, Otos_l); | |
| 425 #else | |
| 426 __ ld(G3_scratch, base_offset, Otos_l); | |
| 427 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
| 428 #endif | |
| 429 __ push(ltos); | |
| 430 | |
| 431 __ bind(exit); | |
| 432 } | |
| 433 | |
| 434 | |
| 435 void TemplateTable::locals_index(Register reg, int offset) { | |
| 436 __ ldub( at_bcp(offset), reg ); | |
| 437 } | |
| 438 | |
| 439 | |
| 440 void TemplateTable::locals_index_wide(Register reg) { | |
| 441 // offset is 2, not 1, because Lbcp points to wide prefix code | |
| 442 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
| 443 } | |
| 444 | |
| 445 void TemplateTable::iload() { | |
| 446 transition(vtos, itos); | |
| 447 // Rewrite iload,iload pair into fast_iload2 | |
| 448 // iload,caload pair into fast_icaload | |
| 449 if (RewriteFrequentPairs) { | |
| 450 Label rewrite, done; | |
| 451 | |
| 452 // get next byte | |
| 453 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
| 454 | |
| 455 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
| 456 // last two iloads in a pair. Comparing against fast_iload means that | |
| 457 // the next bytecode is neither an iload or a caload, and therefore | |
| 458 // an iload pair. | |
| 3839 | 459 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
| 0 | 460 |
| 461 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
| 462 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 463 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
| 464 | |
| 465 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
| 466 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 467 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
| 468 | |
| 469 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
| 470 // rewrite | |
| 471 // G4_scratch: fast bytecode | |
| 472 __ bind(rewrite); | |
| 473 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
| 474 __ bind(done); | |
| 475 } | |
| 476 | |
| 477 // Get the local value into tos | |
| 478 locals_index(G3_scratch); | |
| 479 __ access_local_int( G3_scratch, Otos_i ); | |
| 480 } | |
| 481 | |
| 482 void TemplateTable::fast_iload2() { | |
| 483 transition(vtos, itos); | |
| 484 locals_index(G3_scratch); | |
| 485 __ access_local_int( G3_scratch, Otos_i ); | |
| 486 __ push_i(); | |
| 487 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
| 488 __ access_local_int( G3_scratch, Otos_i ); | |
| 489 } | |
| 490 | |
| 491 void TemplateTable::fast_iload() { | |
| 492 transition(vtos, itos); | |
| 493 locals_index(G3_scratch); | |
| 494 __ access_local_int( G3_scratch, Otos_i ); | |
| 495 } | |
| 496 | |
| 497 void TemplateTable::lload() { | |
| 498 transition(vtos, ltos); | |
| 499 locals_index(G3_scratch); | |
| 500 __ access_local_long( G3_scratch, Otos_l ); | |
| 501 } | |
| 502 | |
| 503 | |
| 504 void TemplateTable::fload() { | |
| 505 transition(vtos, ftos); | |
| 506 locals_index(G3_scratch); | |
| 507 __ access_local_float( G3_scratch, Ftos_f ); | |
| 508 } | |
| 509 | |
| 510 | |
| 511 void TemplateTable::dload() { | |
| 512 transition(vtos, dtos); | |
| 513 locals_index(G3_scratch); | |
| 514 __ access_local_double( G3_scratch, Ftos_d ); | |
| 515 } | |
| 516 | |
| 517 | |
| 518 void TemplateTable::aload() { | |
| 519 transition(vtos, atos); | |
| 520 locals_index(G3_scratch); | |
| 521 __ access_local_ptr( G3_scratch, Otos_i); | |
| 522 } | |
| 523 | |
| 524 | |
| 525 void TemplateTable::wide_iload() { | |
| 526 transition(vtos, itos); | |
| 527 locals_index_wide(G3_scratch); | |
| 528 __ access_local_int( G3_scratch, Otos_i ); | |
| 529 } | |
| 530 | |
| 531 | |
| 532 void TemplateTable::wide_lload() { | |
| 533 transition(vtos, ltos); | |
| 534 locals_index_wide(G3_scratch); | |
| 535 __ access_local_long( G3_scratch, Otos_l ); | |
| 536 } | |
| 537 | |
| 538 | |
| 539 void TemplateTable::wide_fload() { | |
| 540 transition(vtos, ftos); | |
| 541 locals_index_wide(G3_scratch); | |
| 542 __ access_local_float( G3_scratch, Ftos_f ); | |
| 543 } | |
| 544 | |
| 545 | |
| 546 void TemplateTable::wide_dload() { | |
| 547 transition(vtos, dtos); | |
| 548 locals_index_wide(G3_scratch); | |
| 549 __ access_local_double( G3_scratch, Ftos_d ); | |
| 550 } | |
| 551 | |
| 552 | |
| 553 void TemplateTable::wide_aload() { | |
| 554 transition(vtos, atos); | |
| 555 locals_index_wide(G3_scratch); | |
| 556 __ access_local_ptr( G3_scratch, Otos_i ); | |
| 557 __ verify_oop(Otos_i); | |
| 558 } | |
| 559 | |
| 560 | |
| 561 void TemplateTable::iaload() { | |
| 562 transition(itos, itos); | |
| 563 // Otos_i: index | |
| 564 // tos: array | |
| 565 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 566 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
| 567 } | |
| 568 | |
| 569 | |
| 570 void TemplateTable::laload() { | |
| 571 transition(itos, ltos); | |
| 572 // Otos_i: index | |
| 573 // O2: array | |
| 574 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 575 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
| 576 } | |
| 577 | |
| 578 | |
| 579 void TemplateTable::faload() { | |
| 580 transition(itos, ftos); | |
| 581 // Otos_i: index | |
| 582 // O2: array | |
| 583 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
| 584 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
| 585 } | |
| 586 | |
| 587 | |
| 588 void TemplateTable::daload() { | |
| 589 transition(itos, dtos); | |
| 590 // Otos_i: index | |
| 591 // O2: array | |
| 592 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
| 593 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
| 594 } | |
| 595 | |
| 596 | |
| 597 void TemplateTable::aaload() { | |
| 598 transition(itos, atos); | |
| 599 // Otos_i: index | |
| 600 // tos: array | |
|
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601 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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602 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
| 0 | 603 __ verify_oop(Otos_i); |
| 604 } | |
| 605 | |
| 606 | |
| 607 void TemplateTable::baload() { | |
| 608 transition(itos, itos); | |
| 609 // Otos_i: index | |
| 610 // tos: array | |
| 611 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
| 612 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
| 613 } | |
| 614 | |
| 615 | |
| 616 void TemplateTable::caload() { | |
| 617 transition(itos, itos); | |
| 618 // Otos_i: index | |
| 619 // tos: array | |
| 620 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 621 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 622 } | |
| 623 | |
| 624 void TemplateTable::fast_icaload() { | |
| 625 transition(vtos, itos); | |
| 626 // Otos_i: index | |
| 627 // tos: array | |
| 628 locals_index(G3_scratch); | |
| 629 __ access_local_int( G3_scratch, Otos_i ); | |
| 630 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 631 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
| 632 } | |
| 633 | |
| 634 | |
| 635 void TemplateTable::saload() { | |
| 636 transition(itos, itos); | |
| 637 // Otos_i: index | |
| 638 // tos: array | |
| 639 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
| 640 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
| 641 } | |
| 642 | |
| 643 | |
| 644 void TemplateTable::iload(int n) { | |
| 645 transition(vtos, itos); | |
| 646 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 647 } | |
| 648 | |
| 649 | |
| 650 void TemplateTable::lload(int n) { | |
| 651 transition(vtos, ltos); | |
| 652 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
| 653 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
| 654 } | |
| 655 | |
| 656 | |
| 657 void TemplateTable::fload(int n) { | |
| 658 transition(vtos, ftos); | |
| 659 assert(n < Argument::n_register_parameters, "would need more code"); | |
| 660 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
| 661 } | |
| 662 | |
| 663 | |
| 664 void TemplateTable::dload(int n) { | |
| 665 transition(vtos, dtos); | |
| 666 FloatRegister dst = Ftos_d; | |
| 667 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
| 668 } | |
| 669 | |
| 670 | |
| 671 void TemplateTable::aload(int n) { | |
| 672 transition(vtos, atos); | |
| 673 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
| 674 } | |
| 675 | |
| 676 | |
| 677 void TemplateTable::aload_0() { | |
| 678 transition(vtos, atos); | |
| 679 | |
| 680 // According to bytecode histograms, the pairs: | |
| 681 // | |
| 682 // _aload_0, _fast_igetfield (itos) | |
| 683 // _aload_0, _fast_agetfield (atos) | |
| 684 // _aload_0, _fast_fgetfield (ftos) | |
| 685 // | |
| 686 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
| 687 // bytecode checks the next bytecode and then rewrites the current | |
| 688 // bytecode into a pair bytecode; otherwise it rewrites the current | |
| 689 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
| 690 // | |
| 691 if (RewriteFrequentPairs) { | |
| 692 Label rewrite, done; | |
| 693 | |
| 694 // get next byte | |
| 695 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
| 696 | |
| 697 // do actual aload_0 | |
| 698 aload(0); | |
| 699 | |
| 700 // if _getfield then wait with rewrite | |
| 3839 | 701 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
| 0 | 702 |
| 703 // if _igetfield then rewrite to _fast_iaccess_0 | |
| 704 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 705 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
| 706 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 707 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
| 708 | |
| 709 // if _agetfield then rewrite to _fast_aaccess_0 | |
| 710 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 711 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
| 712 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 713 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
| 714 | |
| 715 // if _fgetfield then rewrite to _fast_faccess_0 | |
| 716 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 717 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
| 718 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
| 719 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
| 720 | |
| 721 // else rewrite to _fast_aload0 | |
| 722 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
| 723 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
| 724 | |
| 725 // rewrite | |
| 726 // G4_scratch: fast bytecode | |
| 727 __ bind(rewrite); | |
| 728 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
| 729 __ bind(done); | |
| 730 } else { | |
| 731 aload(0); | |
| 732 } | |
| 733 } | |
| 734 | |
| 735 | |
| 736 void TemplateTable::istore() { | |
| 737 transition(itos, vtos); | |
| 738 locals_index(G3_scratch); | |
| 739 __ store_local_int( G3_scratch, Otos_i ); | |
| 740 } | |
| 741 | |
| 742 | |
| 743 void TemplateTable::lstore() { | |
| 744 transition(ltos, vtos); | |
| 745 locals_index(G3_scratch); | |
| 746 __ store_local_long( G3_scratch, Otos_l ); | |
| 747 } | |
| 748 | |
| 749 | |
| 750 void TemplateTable::fstore() { | |
| 751 transition(ftos, vtos); | |
| 752 locals_index(G3_scratch); | |
| 753 __ store_local_float( G3_scratch, Ftos_f ); | |
| 754 } | |
| 755 | |
| 756 | |
| 757 void TemplateTable::dstore() { | |
| 758 transition(dtos, vtos); | |
| 759 locals_index(G3_scratch); | |
| 760 __ store_local_double( G3_scratch, Ftos_d ); | |
| 761 } | |
| 762 | |
| 763 | |
| 764 void TemplateTable::astore() { | |
| 765 transition(vtos, vtos); | |
| 1506 | 766 __ load_ptr(0, Otos_i); |
| 767 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 768 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 769 locals_index(G3_scratch); | |
| 1506 | 770 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 771 } |
| 772 | |
| 773 | |
| 774 void TemplateTable::wide_istore() { | |
| 775 transition(vtos, vtos); | |
| 776 __ pop_i(); | |
| 777 locals_index_wide(G3_scratch); | |
| 778 __ store_local_int( G3_scratch, Otos_i ); | |
| 779 } | |
| 780 | |
| 781 | |
| 782 void TemplateTable::wide_lstore() { | |
| 783 transition(vtos, vtos); | |
| 784 __ pop_l(); | |
| 785 locals_index_wide(G3_scratch); | |
| 786 __ store_local_long( G3_scratch, Otos_l ); | |
| 787 } | |
| 788 | |
| 789 | |
| 790 void TemplateTable::wide_fstore() { | |
| 791 transition(vtos, vtos); | |
| 792 __ pop_f(); | |
| 793 locals_index_wide(G3_scratch); | |
| 794 __ store_local_float( G3_scratch, Ftos_f ); | |
| 795 } | |
| 796 | |
| 797 | |
| 798 void TemplateTable::wide_dstore() { | |
| 799 transition(vtos, vtos); | |
| 800 __ pop_d(); | |
| 801 locals_index_wide(G3_scratch); | |
| 802 __ store_local_double( G3_scratch, Ftos_d ); | |
| 803 } | |
| 804 | |
| 805 | |
| 806 void TemplateTable::wide_astore() { | |
| 807 transition(vtos, vtos); | |
| 1506 | 808 __ load_ptr(0, Otos_i); |
| 809 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 810 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 811 locals_index_wide(G3_scratch); | |
| 1506 | 812 __ store_local_ptr(G3_scratch, Otos_i); |
| 0 | 813 } |
| 814 | |
| 815 | |
| 816 void TemplateTable::iastore() { | |
| 817 transition(itos, vtos); | |
| 818 __ pop_i(O2); // index | |
| 819 // Otos_i: val | |
| 820 // O3: array | |
| 821 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 822 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
| 823 } | |
| 824 | |
| 825 | |
| 826 void TemplateTable::lastore() { | |
| 827 transition(ltos, vtos); | |
| 828 __ pop_i(O2); // index | |
| 829 // Otos_l: val | |
| 830 // O3: array | |
| 831 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 832 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
| 833 } | |
| 834 | |
| 835 | |
| 836 void TemplateTable::fastore() { | |
| 837 transition(ftos, vtos); | |
| 838 __ pop_i(O2); // index | |
| 839 // Ftos_f: val | |
| 840 // O3: array | |
| 841 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
| 842 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
| 843 } | |
| 844 | |
| 845 | |
| 846 void TemplateTable::dastore() { | |
| 847 transition(dtos, vtos); | |
| 848 __ pop_i(O2); // index | |
| 849 // Fos_d: val | |
| 850 // O3: array | |
| 851 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
| 852 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
| 853 } | |
| 854 | |
| 855 | |
| 856 void TemplateTable::aastore() { | |
| 857 Label store_ok, is_null, done; | |
| 858 transition(vtos, vtos); | |
| 859 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 860 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
| 861 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
| 862 // Otos_i: val | |
| 863 // O2: index | |
| 864 // O3: array | |
| 865 __ verify_oop(Otos_i); | |
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866 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
| 0 | 867 |
| 868 // do array store check - check for NULL value first | |
| 3839 | 869 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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870 |
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871 __ load_klass(O3, O4); // get array klass |
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872 __ load_klass(Otos_i, O5); // get value klass |
| 0 | 873 |
| 874 // do fast instanceof cache test | |
| 875 | |
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876 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
| 0 | 877 |
| 878 assert(Otos_i == O0, "just checking"); | |
| 879 | |
| 880 // Otos_i: value | |
| 881 // O1: addr - offset | |
| 882 // O2: index | |
| 883 // O3: array | |
| 884 // O4: array element klass | |
| 885 // O5: value klass | |
| 886 | |
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887 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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888 |
| 0 | 889 // Generate a fast subtype check. Branch to store_ok if no |
| 890 // failure. Throw if failure. | |
| 891 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
| 892 | |
| 893 // Not a subtype; so must throw exception | |
| 894 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
| 895 | |
| 896 // Store is OK. | |
| 897 __ bind(store_ok); | |
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898 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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899 |
| 3839 | 900 __ ba(done); |
| 1506 | 901 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 902 |
| 903 __ bind(is_null); | |
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904 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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905 |
| 0 | 906 __ profile_null_seen(G3_scratch); |
| 1506 | 907 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
| 0 | 908 __ bind(done); |
| 909 } | |
| 910 | |
| 911 | |
| 912 void TemplateTable::bastore() { | |
| 913 transition(itos, vtos); | |
| 914 __ pop_i(O2); // index | |
| 915 // Otos_i: val | |
| 916 // O3: array | |
| 917 __ index_check(O3, O2, 0, G3_scratch, O2); | |
| 918 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
| 919 } | |
| 920 | |
| 921 | |
| 922 void TemplateTable::castore() { | |
| 923 transition(itos, vtos); | |
| 924 __ pop_i(O2); // index | |
| 925 // Otos_i: val | |
| 926 // O3: array | |
| 927 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
| 928 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
| 929 } | |
| 930 | |
| 931 | |
| 932 void TemplateTable::sastore() { | |
| 933 // %%%%% Factor across platform | |
| 934 castore(); | |
| 935 } | |
| 936 | |
| 937 | |
| 938 void TemplateTable::istore(int n) { | |
| 939 transition(itos, vtos); | |
| 940 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 941 } | |
| 942 | |
| 943 | |
| 944 void TemplateTable::lstore(int n) { | |
| 945 transition(ltos, vtos); | |
| 946 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
| 947 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 948 | |
| 949 } | |
| 950 | |
| 951 | |
| 952 void TemplateTable::fstore(int n) { | |
| 953 transition(ftos, vtos); | |
| 954 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
| 955 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
| 956 } | |
| 957 | |
| 958 | |
| 959 void TemplateTable::dstore(int n) { | |
| 960 transition(dtos, vtos); | |
| 961 FloatRegister src = Ftos_d; | |
| 962 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
| 963 } | |
| 964 | |
| 965 | |
| 966 void TemplateTable::astore(int n) { | |
| 967 transition(vtos, vtos); | |
| 1506 | 968 __ load_ptr(0, Otos_i); |
| 969 __ inc(Lesp, Interpreter::stackElementSize); | |
| 0 | 970 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
| 1506 | 971 __ store_local_ptr(n, Otos_i); |
| 0 | 972 } |
| 973 | |
| 974 | |
| 975 void TemplateTable::pop() { | |
| 976 transition(vtos, vtos); | |
| 1506 | 977 __ inc(Lesp, Interpreter::stackElementSize); |
| 0 | 978 } |
| 979 | |
| 980 | |
| 981 void TemplateTable::pop2() { | |
| 982 transition(vtos, vtos); | |
| 1506 | 983 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
| 0 | 984 } |
| 985 | |
| 986 | |
| 987 void TemplateTable::dup() { | |
| 988 transition(vtos, vtos); | |
| 989 // stack: ..., a | |
| 990 // load a and tag | |
| 1506 | 991 __ load_ptr(0, Otos_i); |
| 992 __ push_ptr(Otos_i); | |
| 0 | 993 // stack: ..., a, a |
| 994 } | |
| 995 | |
| 996 | |
| 997 void TemplateTable::dup_x1() { | |
| 998 transition(vtos, vtos); | |
| 999 // stack: ..., a, b | |
| 1506 | 1000 __ load_ptr( 1, G3_scratch); // get a |
| 1001 __ load_ptr( 0, Otos_l1); // get b | |
| 1002 __ store_ptr(1, Otos_l1); // put b | |
| 1003 __ store_ptr(0, G3_scratch); // put a - like swap | |
| 1004 __ push_ptr(Otos_l1); // push b | |
| 0 | 1005 // stack: ..., b, a, b |
| 1006 } | |
| 1007 | |
| 1008 | |
| 1009 void TemplateTable::dup_x2() { | |
| 1010 transition(vtos, vtos); | |
| 1011 // stack: ..., a, b, c | |
| 1012 // get c and push on stack, reuse registers | |
| 1506 | 1013 __ load_ptr( 0, G3_scratch); // get c |
| 1014 __ push_ptr(G3_scratch); // push c with tag | |
| 0 | 1015 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
| 1016 // (stack offsets n+1 now) | |
| 1506 | 1017 __ load_ptr( 3, Otos_l1); // get a |
| 1018 __ store_ptr(3, G3_scratch); // put c at 3 | |
| 0 | 1019 // stack: ..., c, b, c, c (a in reg) |
| 1506 | 1020 __ load_ptr( 2, G3_scratch); // get b |
| 1021 __ store_ptr(2, Otos_l1); // put a at 2 | |
| 0 | 1022 // stack: ..., c, a, c, c (b in reg) |
| 1506 | 1023 __ store_ptr(1, G3_scratch); // put b at 1 |
| 0 | 1024 // stack: ..., c, a, b, c |
| 1025 } | |
| 1026 | |
| 1027 | |
| 1028 void TemplateTable::dup2() { | |
| 1029 transition(vtos, vtos); | |
| 1506 | 1030 __ load_ptr(1, G3_scratch); // get a |
| 1031 __ load_ptr(0, Otos_l1); // get b | |
| 1032 __ push_ptr(G3_scratch); // push a | |
| 1033 __ push_ptr(Otos_l1); // push b | |
| 0 | 1034 // stack: ..., a, b, a, b |
| 1035 } | |
| 1036 | |
| 1037 | |
| 1038 void TemplateTable::dup2_x1() { | |
| 1039 transition(vtos, vtos); | |
| 1040 // stack: ..., a, b, c | |
| 1506 | 1041 __ load_ptr( 1, Lscratch); // get b |
| 1042 __ load_ptr( 2, Otos_l1); // get a | |
| 1043 __ store_ptr(2, Lscratch); // put b at a | |
| 0 | 1044 // stack: ..., b, b, c |
| 1506 | 1045 __ load_ptr( 0, G3_scratch); // get c |
| 1046 __ store_ptr(1, G3_scratch); // put c at b | |
| 0 | 1047 // stack: ..., b, c, c |
| 1506 | 1048 __ store_ptr(0, Otos_l1); // put a at c |
| 0 | 1049 // stack: ..., b, c, a |
| 1506 | 1050 __ push_ptr(Lscratch); // push b |
| 1051 __ push_ptr(G3_scratch); // push c | |
| 0 | 1052 // stack: ..., b, c, a, b, c |
| 1053 } | |
| 1054 | |
| 1055 | |
| 1056 // The spec says that these types can be a mixture of category 1 (1 word) | |
| 1057 // types and/or category 2 types (long and doubles) | |
| 1058 void TemplateTable::dup2_x2() { | |
| 1059 transition(vtos, vtos); | |
| 1060 // stack: ..., a, b, c, d | |
| 1506 | 1061 __ load_ptr( 1, Lscratch); // get c |
| 1062 __ load_ptr( 3, Otos_l1); // get a | |
| 1063 __ store_ptr(3, Lscratch); // put c at 3 | |
| 1064 __ store_ptr(1, Otos_l1); // put a at 1 | |
| 0 | 1065 // stack: ..., c, b, a, d |
| 1506 | 1066 __ load_ptr( 2, G3_scratch); // get b |
| 1067 __ load_ptr( 0, Otos_l1); // get d | |
| 1068 __ store_ptr(0, G3_scratch); // put b at 0 | |
| 1069 __ store_ptr(2, Otos_l1); // put d at 2 | |
| 0 | 1070 // stack: ..., c, d, a, b |
| 1506 | 1071 __ push_ptr(Lscratch); // push c |
| 1072 __ push_ptr(Otos_l1); // push d | |
| 0 | 1073 // stack: ..., c, d, a, b, c, d |
| 1074 } | |
| 1075 | |
| 1076 | |
| 1077 void TemplateTable::swap() { | |
| 1078 transition(vtos, vtos); | |
| 1079 // stack: ..., a, b | |
| 1506 | 1080 __ load_ptr( 1, G3_scratch); // get a |
| 1081 __ load_ptr( 0, Otos_l1); // get b | |
| 1082 __ store_ptr(0, G3_scratch); // put b | |
| 1083 __ store_ptr(1, Otos_l1); // put a | |
| 0 | 1084 // stack: ..., b, a |
| 1085 } | |
| 1086 | |
| 1087 | |
| 1088 void TemplateTable::iop2(Operation op) { | |
| 1089 transition(itos, itos); | |
| 1090 __ pop_i(O1); | |
| 1091 switch (op) { | |
| 1092 case add: __ add(O1, Otos_i, Otos_i); break; | |
| 1093 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
| 1094 // %%%%% Mul may not exist: better to call .mul? | |
| 1095 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
| 1506 | 1096 case _and: __ and3(O1, Otos_i, Otos_i); break; |
| 1097 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
| 1098 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
| 0 | 1099 case shl: __ sll(O1, Otos_i, Otos_i); break; |
| 1100 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
| 1101 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
| 1102 default: ShouldNotReachHere(); | |
| 1103 } | |
| 1104 } | |
| 1105 | |
| 1106 | |
| 1107 void TemplateTable::lop2(Operation op) { | |
| 1108 transition(ltos, ltos); | |
| 1109 __ pop_l(O2); | |
| 1110 switch (op) { | |
| 1111 #ifdef _LP64 | |
| 1506 | 1112 case add: __ add(O2, Otos_l, Otos_l); break; |
| 1113 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
| 1114 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
| 1115 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
| 1116 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
| 0 | 1117 #else |
| 1118 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
| 1119 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
| 1506 | 1120 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
| 1121 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
| 1122 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
| 0 | 1123 #endif |
| 1124 default: ShouldNotReachHere(); | |
| 1125 } | |
| 1126 } | |
| 1127 | |
| 1128 | |
| 1129 void TemplateTable::idiv() { | |
| 1130 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
| 1131 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
| 1132 | |
| 1133 transition(itos, itos); | |
| 1134 __ pop_i(O1); // get 1st op | |
| 1135 | |
| 1136 // Y contains upper 32 bits of result, set it to 0 or all ones | |
| 1137 __ wry(G0); | |
| 1138 __ mov(~0, G3_scratch); | |
| 1139 | |
| 1140 __ tst(O1); | |
| 1141 Label neg; | |
| 1142 __ br(Assembler::negative, true, Assembler::pn, neg); | |
| 1143 __ delayed()->wry(G3_scratch); | |
| 1144 __ bind(neg); | |
| 1145 | |
| 1146 Label ok; | |
| 1147 __ tst(Otos_i); | |
| 1148 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
| 1149 | |
| 1150 const int min_int = 0x80000000; | |
| 1151 Label regular; | |
| 1152 __ cmp(Otos_i, -1); | |
| 1153 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
| 1154 #ifdef _LP64 | |
| 1155 // Don't put set in delay slot | |
| 1156 // Set will turn into multiple instructions in 64 bit mode | |
| 1157 __ delayed()->nop(); | |
| 1158 __ set(min_int, G4_scratch); | |
| 1159 #else | |
| 1160 __ delayed()->set(min_int, G4_scratch); | |
| 1161 #endif | |
| 1162 Label done; | |
| 1163 __ cmp(O1, G4_scratch); | |
| 1164 __ br(Assembler::equal, true, Assembler::pt, done); | |
| 1165 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
| 1166 | |
| 1167 __ bind(regular); | |
| 1168 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
| 1169 __ bind(done); | |
| 1170 } | |
| 1171 | |
| 1172 | |
| 1173 void TemplateTable::irem() { | |
| 1174 transition(itos, itos); | |
| 1175 __ mov(Otos_i, O2); // save divisor | |
| 1176 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
| 1177 __ smul(Otos_i, O2, Otos_i); | |
| 1178 __ sub(O1, Otos_i, Otos_i); | |
| 1179 } | |
| 1180 | |
| 1181 | |
| 1182 void TemplateTable::lmul() { | |
| 1183 transition(ltos, ltos); | |
| 1184 __ pop_l(O2); | |
| 1185 #ifdef _LP64 | |
| 1186 __ mulx(Otos_l, O2, Otos_l); | |
| 1187 #else | |
| 1188 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
| 1189 #endif | |
| 1190 | |
| 1191 } | |
| 1192 | |
| 1193 | |
| 1194 void TemplateTable::ldiv() { | |
| 1195 transition(ltos, ltos); | |
| 1196 | |
| 1197 // check for zero | |
| 1198 __ pop_l(O2); | |
| 1199 #ifdef _LP64 | |
| 1200 __ tst(Otos_l); | |
| 1201 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1202 __ sdivx(O2, Otos_l, Otos_l); | |
| 1203 #else | |
| 1204 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1205 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1206 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
| 1207 #endif | |
| 1208 } | |
| 1209 | |
| 1210 | |
| 1211 void TemplateTable::lrem() { | |
| 1212 transition(ltos, ltos); | |
| 1213 | |
| 1214 // check for zero | |
| 1215 __ pop_l(O2); | |
| 1216 #ifdef _LP64 | |
| 1217 __ tst(Otos_l); | |
| 1218 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1219 __ sdivx(O2, Otos_l, Otos_l2); | |
| 1220 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
| 1221 __ sub (O2, Otos_l2, Otos_l); | |
| 1222 #else | |
| 1223 __ orcc(Otos_l1, Otos_l2, G0); | |
| 1224 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
| 1225 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
| 1226 #endif | |
| 1227 } | |
| 1228 | |
| 1229 | |
| 1230 void TemplateTable::lshl() { | |
| 1231 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
| 1232 | |
| 1233 __ pop_l(O2); // shift value in O2, O3 | |
| 1234 #ifdef _LP64 | |
| 1235 __ sllx(O2, Otos_i, Otos_l); | |
| 1236 #else | |
| 1237 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1238 #endif | |
| 1239 } | |
| 1240 | |
| 1241 | |
| 1242 void TemplateTable::lshr() { | |
| 1243 transition(itos, ltos); // %%%% see lshl comment | |
| 1244 | |
| 1245 __ pop_l(O2); // shift value in O2, O3 | |
| 1246 #ifdef _LP64 | |
| 1247 __ srax(O2, Otos_i, Otos_l); | |
| 1248 #else | |
| 1249 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1250 #endif | |
| 1251 } | |
| 1252 | |
| 1253 | |
| 1254 | |
| 1255 void TemplateTable::lushr() { | |
| 1256 transition(itos, ltos); // %%%% see lshl comment | |
| 1257 | |
| 1258 __ pop_l(O2); // shift value in O2, O3 | |
| 1259 #ifdef _LP64 | |
| 1260 __ srlx(O2, Otos_i, Otos_l); | |
| 1261 #else | |
| 1262 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
| 1263 #endif | |
| 1264 } | |
| 1265 | |
| 1266 | |
| 1267 void TemplateTable::fop2(Operation op) { | |
| 1268 transition(ftos, ftos); | |
| 1269 switch (op) { | |
| 1270 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1271 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1272 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1273 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
| 1274 case rem: | |
| 1275 assert(Ftos_f == F0, "just checking"); | |
| 1276 #ifdef _LP64 | |
| 1277 // LP64 calling conventions use F1, F3 for passing 2 floats | |
| 1278 __ pop_f(F1); | |
| 1279 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
| 1280 #else | |
| 1281 __ pop_i(O0); | |
| 1282 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
| 1283 __ ld( __ d_tmp, O1 ); | |
| 1284 #endif | |
| 1285 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
| 1286 assert( Ftos_f == F0, "fix this code" ); | |
| 1287 break; | |
| 1288 | |
| 1289 default: ShouldNotReachHere(); | |
| 1290 } | |
| 1291 } | |
| 1292 | |
| 1293 | |
| 1294 void TemplateTable::dop2(Operation op) { | |
| 1295 transition(dtos, dtos); | |
| 1296 switch (op) { | |
| 1297 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1298 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1299 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1300 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
| 1301 case rem: | |
| 1302 #ifdef _LP64 | |
| 1303 // Pass arguments in D0, D2 | |
| 1304 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
| 1305 __ pop_d( F0 ); | |
| 1306 #else | |
| 1307 // Pass arguments in O0O1, O2O3 | |
| 1308 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1309 __ ldd( __ d_tmp, O2 ); | |
| 1310 __ pop_d(Ftos_f); | |
| 1311 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
| 1312 __ ldd( __ d_tmp, O0 ); | |
| 1313 #endif | |
| 1314 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
| 1315 assert( Ftos_d == F0, "fix this code" ); | |
| 1316 break; | |
| 1317 | |
| 1318 default: ShouldNotReachHere(); | |
| 1319 } | |
| 1320 } | |
| 1321 | |
| 1322 | |
| 1323 void TemplateTable::ineg() { | |
| 1324 transition(itos, itos); | |
| 1325 __ neg(Otos_i); | |
| 1326 } | |
| 1327 | |
| 1328 | |
| 1329 void TemplateTable::lneg() { | |
| 1330 transition(ltos, ltos); | |
| 1331 #ifdef _LP64 | |
| 1332 __ sub(G0, Otos_l, Otos_l); | |
| 1333 #else | |
| 1334 __ lneg(Otos_l1, Otos_l2); | |
| 1335 #endif | |
| 1336 } | |
| 1337 | |
| 1338 | |
| 1339 void TemplateTable::fneg() { | |
| 1340 transition(ftos, ftos); | |
| 1341 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
| 1342 } | |
| 1343 | |
| 1344 | |
| 1345 void TemplateTable::dneg() { | |
| 1346 transition(dtos, dtos); | |
| 1347 // v8 has fnegd if source and dest are the same | |
| 1348 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
| 1349 } | |
| 1350 | |
| 1351 | |
| 1352 void TemplateTable::iinc() { | |
| 1353 transition(vtos, vtos); | |
| 1354 locals_index(G3_scratch); | |
| 1355 __ ldsb(Lbcp, 2, O2); // load constant | |
| 1356 __ access_local_int(G3_scratch, Otos_i); | |
| 1357 __ add(Otos_i, O2, Otos_i); | |
| 1506 | 1358 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1359 } |
| 1360 | |
| 1361 | |
| 1362 void TemplateTable::wide_iinc() { | |
| 1363 transition(vtos, vtos); | |
| 1364 locals_index_wide(G3_scratch); | |
| 1365 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
| 1366 __ access_local_int(G3_scratch, Otos_i); | |
| 1367 __ add(Otos_i, O3, Otos_i); | |
| 1506 | 1368 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
| 0 | 1369 } |
| 1370 | |
| 1371 | |
| 1372 void TemplateTable::convert() { | |
| 1373 // %%%%% Factor this first part accross platforms | |
| 1374 #ifdef ASSERT | |
| 1375 TosState tos_in = ilgl; | |
| 1376 TosState tos_out = ilgl; | |
| 1377 switch (bytecode()) { | |
| 1378 case Bytecodes::_i2l: // fall through | |
| 1379 case Bytecodes::_i2f: // fall through | |
| 1380 case Bytecodes::_i2d: // fall through | |
| 1381 case Bytecodes::_i2b: // fall through | |
| 1382 case Bytecodes::_i2c: // fall through | |
| 1383 case Bytecodes::_i2s: tos_in = itos; break; | |
| 1384 case Bytecodes::_l2i: // fall through | |
| 1385 case Bytecodes::_l2f: // fall through | |
| 1386 case Bytecodes::_l2d: tos_in = ltos; break; | |
| 1387 case Bytecodes::_f2i: // fall through | |
| 1388 case Bytecodes::_f2l: // fall through | |
| 1389 case Bytecodes::_f2d: tos_in = ftos; break; | |
| 1390 case Bytecodes::_d2i: // fall through | |
| 1391 case Bytecodes::_d2l: // fall through | |
| 1392 case Bytecodes::_d2f: tos_in = dtos; break; | |
| 1393 default : ShouldNotReachHere(); | |
| 1394 } | |
| 1395 switch (bytecode()) { | |
| 1396 case Bytecodes::_l2i: // fall through | |
| 1397 case Bytecodes::_f2i: // fall through | |
| 1398 case Bytecodes::_d2i: // fall through | |
| 1399 case Bytecodes::_i2b: // fall through | |
| 1400 case Bytecodes::_i2c: // fall through | |
| 1401 case Bytecodes::_i2s: tos_out = itos; break; | |
| 1402 case Bytecodes::_i2l: // fall through | |
| 1403 case Bytecodes::_f2l: // fall through | |
| 1404 case Bytecodes::_d2l: tos_out = ltos; break; | |
| 1405 case Bytecodes::_i2f: // fall through | |
| 1406 case Bytecodes::_l2f: // fall through | |
| 1407 case Bytecodes::_d2f: tos_out = ftos; break; | |
| 1408 case Bytecodes::_i2d: // fall through | |
| 1409 case Bytecodes::_l2d: // fall through | |
| 1410 case Bytecodes::_f2d: tos_out = dtos; break; | |
| 1411 default : ShouldNotReachHere(); | |
| 1412 } | |
| 1413 transition(tos_in, tos_out); | |
| 1414 #endif | |
| 1415 | |
| 1416 | |
| 1417 // Conversion | |
| 1418 Label done; | |
| 1419 switch (bytecode()) { | |
| 1420 case Bytecodes::_i2l: | |
| 1421 #ifdef _LP64 | |
| 1422 // Sign extend the 32 bits | |
| 1423 __ sra ( Otos_i, 0, Otos_l ); | |
| 1424 #else | |
| 1425 __ addcc(Otos_i, 0, Otos_l2); | |
| 1426 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
| 1427 __ delayed()->clr(Otos_l1); | |
| 1428 __ set(~0, Otos_l1); | |
| 1429 #endif | |
| 1430 break; | |
| 1431 | |
| 1432 case Bytecodes::_i2f: | |
| 1433 __ st(Otos_i, __ d_tmp ); | |
| 1434 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1435 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
| 1436 break; | |
| 1437 | |
| 1438 case Bytecodes::_i2d: | |
| 1439 __ st(Otos_i, __ d_tmp); | |
| 1440 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
| 1441 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
| 1442 break; | |
| 1443 | |
| 1444 case Bytecodes::_i2b: | |
| 1445 __ sll(Otos_i, 24, Otos_i); | |
| 1446 __ sra(Otos_i, 24, Otos_i); | |
| 1447 break; | |
| 1448 | |
| 1449 case Bytecodes::_i2c: | |
| 1450 __ sll(Otos_i, 16, Otos_i); | |
| 1451 __ srl(Otos_i, 16, Otos_i); | |
| 1452 break; | |
| 1453 | |
| 1454 case Bytecodes::_i2s: | |
| 1455 __ sll(Otos_i, 16, Otos_i); | |
| 1456 __ sra(Otos_i, 16, Otos_i); | |
| 1457 break; | |
| 1458 | |
| 1459 case Bytecodes::_l2i: | |
| 1460 #ifndef _LP64 | |
| 1461 __ mov(Otos_l2, Otos_i); | |
| 1462 #else | |
| 1463 // Sign-extend into the high 32 bits | |
| 1464 __ sra(Otos_l, 0, Otos_i); | |
| 1465 #endif | |
| 1466 break; | |
| 1467 | |
| 1468 case Bytecodes::_l2f: | |
| 1469 case Bytecodes::_l2d: | |
| 1470 __ st_long(Otos_l, __ d_tmp); | |
| 1471 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
| 1472 | |
| 1473 if (VM_Version::v9_instructions_work()) { | |
| 1474 if (bytecode() == Bytecodes::_l2f) { | |
| 1475 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1476 } else { | |
| 1477 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
| 1478 } | |
| 1479 } else { | |
| 1480 __ call_VM_leaf( | |
| 1481 Lscratch, | |
| 1482 bytecode() == Bytecodes::_l2f | |
| 1483 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
| 1484 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
| 1485 ); | |
| 1486 } | |
| 1487 break; | |
| 1488 | |
| 1489 case Bytecodes::_f2i: { | |
| 1490 Label isNaN; | |
| 1491 // result must be 0 if value is NaN; test by comparing value to itself | |
| 1492 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
| 1493 // According to the v8 manual, you have to have a non-fp instruction | |
| 1494 // between fcmp and fb. | |
| 1495 if (!VM_Version::v9_instructions_work()) { | |
| 1496 __ nop(); | |
| 1497 } | |
| 1498 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
| 1499 __ delayed()->clr(Otos_i); // NaN | |
| 1500 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
| 1501 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
| 1502 __ ld(__ d_tmp, Otos_i); | |
| 1503 __ bind(isNaN); | |
| 1504 } | |
| 1505 break; | |
| 1506 | |
| 1507 case Bytecodes::_f2l: | |
| 1508 // must uncache tos | |
| 1509 __ push_f(); | |
| 1510 #ifdef _LP64 | |
| 1511 __ pop_f(F1); | |
| 1512 #else | |
| 1513 __ pop_i(O0); | |
| 1514 #endif | |
| 1515 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
| 1516 break; | |
| 1517 | |
| 1518 case Bytecodes::_f2d: | |
| 1519 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
| 1520 break; | |
| 1521 | |
| 1522 case Bytecodes::_d2i: | |
| 1523 case Bytecodes::_d2l: | |
| 1524 // must uncache tos | |
| 1525 __ push_d(); | |
| 1526 #ifdef _LP64 | |
| 1527 // LP64 calling conventions pass first double arg in D0 | |
| 1528 __ pop_d( Ftos_d ); | |
| 1529 #else | |
| 1530 __ pop_i( O0 ); | |
| 1531 __ pop_i( O1 ); | |
| 1532 #endif | |
| 1533 __ call_VM_leaf(Lscratch, | |
| 1534 bytecode() == Bytecodes::_d2i | |
| 1535 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
| 1536 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
| 1537 break; | |
| 1538 | |
| 1539 case Bytecodes::_d2f: | |
| 1540 if (VM_Version::v9_instructions_work()) { | |
| 1541 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
| 1542 } | |
| 1543 else { | |
| 1544 // must uncache tos | |
| 1545 __ push_d(); | |
| 1546 __ pop_i(O0); | |
| 1547 __ pop_i(O1); | |
| 1548 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
| 1549 } | |
| 1550 break; | |
| 1551 | |
| 1552 default: ShouldNotReachHere(); | |
| 1553 } | |
| 1554 __ bind(done); | |
| 1555 } | |
| 1556 | |
| 1557 | |
| 1558 void TemplateTable::lcmp() { | |
| 1559 transition(ltos, itos); | |
| 1560 | |
| 1561 #ifdef _LP64 | |
| 1562 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
| 1563 __ lcmp( O1, Otos_l, Otos_i ); | |
| 1564 #else | |
| 1565 __ pop_l(O2); // cmp O2,3 to O0,1 | |
| 1566 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
| 1567 #endif | |
| 1568 } | |
| 1569 | |
| 1570 | |
| 1571 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
| 1572 | |
| 1573 if (is_float) __ pop_f(F2); | |
| 1574 else __ pop_d(F2); | |
| 1575 | |
| 1576 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
| 1577 | |
| 1578 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
| 1579 } | |
| 1580 | |
| 1581 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
| 1582 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
| 1583 __ verify_thread(); | |
| 1584 | |
| 1585 const Register O2_bumped_count = O2; | |
| 1586 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
| 1587 | |
| 1588 // get (wide) offset to O1_disp | |
| 1589 const Register O1_disp = O1; | |
| 1590 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
| 1591 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
| 1592 | |
| 1593 // Handle all the JSR stuff here, then exit. | |
| 1594 // It's much shorter and cleaner than intermingling with the | |
| 605 | 1595 // non-JSR normal-branch stuff occurring below. |
| 0 | 1596 if( is_jsr ) { |
| 1597 // compute return address as bci in Otos_i | |
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1598 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1599 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1600 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
| 0 | 1601 |
| 1602 // Bump Lbcp to target of JSR | |
| 1603 __ add(Lbcp, O1_disp, Lbcp); | |
| 1604 // Push returnAddress for "ret" on stack | |
| 1506 | 1605 __ push_ptr(Otos_i); |
| 0 | 1606 // And away we go! |
| 1607 __ dispatch_next(vtos); | |
| 1608 return; | |
| 1609 } | |
| 1610 | |
| 1611 // Normal (non-jsr) branch handling | |
| 1612 | |
| 1613 // Save the current Lbcp | |
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1614 const Register l_cur_bcp = Lscratch; |
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1615 __ mov( Lbcp, l_cur_bcp ); |
| 1783 | 1616 |
| 0 | 1617 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
| 1618 if ( increment_invocation_counter_for_backward_branches ) { | |
| 1619 Label Lforward; | |
| 1620 // check branch direction | |
| 1621 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
| 1622 // Bump bytecode pointer by displacement (take the branch) | |
| 1623 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
| 1624 | |
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1625 const Register Rcounters = G3_scratch; |
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1626 __ get_method_counters(Lmethod, Rcounters, Lforward); |
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1627 |
| 1783 | 1628 if (TieredCompilation) { |
| 1629 Label Lno_mdo, Loverflow; | |
| 1630 int increment = InvocationCounter::count_increment; | |
| 1631 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
| 1632 if (ProfileInterpreter) { | |
| 1633 // If no method data exists, go to profile_continue. | |
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1634 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
| 3839 | 1635 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
| 1783 | 1636 |
| 1637 // Increment backedge counter in the MDO | |
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1638 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
| 1783 | 1639 in_bytes(InvocationCounter::counter_offset())); |
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1640 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, O0, |
| 1783 | 1641 Assembler::notZero, &Lforward); |
| 3839 | 1642 __ ba_short(Loverflow); |
| 0 | 1643 } |
| 1783 | 1644 |
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1645 // If there's no MDO, increment counter in MethodCounters* |
| 1783 | 1646 __ bind(Lno_mdo); |
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1647 Address backedge_counter(Rcounters, |
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1648 in_bytes(MethodCounters::backedge_counter_offset()) + |
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1649 in_bytes(InvocationCounter::counter_offset())); |
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1650 __ increment_mask_and_jump(backedge_counter, increment, mask, G4_scratch, O0, |
| 1783 | 1651 Assembler::notZero, &Lforward); |
| 1652 __ bind(Loverflow); | |
| 1653 | |
| 1654 // notify point for loop, pass branch bytecode | |
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1655 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), l_cur_bcp); |
| 1783 | 1656 |
| 1657 // Was an OSR adapter generated? | |
| 1658 // O0 = osr nmethod | |
| 3839 | 1659 __ br_null_short(O0, Assembler::pn, Lforward); |
| 1783 | 1660 |
| 1661 // Has the nmethod been invalidated already? | |
| 1662 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
| 3839 | 1663 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
| 1783 | 1664 |
| 1665 // migrate the interpreter frame off of the stack | |
| 1666 | |
| 1667 __ mov(G2_thread, L7); | |
| 1668 // save nmethod | |
| 1669 __ mov(O0, L6); | |
| 1670 __ set_last_Java_frame(SP, noreg); | |
| 1671 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
| 1672 __ reset_last_Java_frame(); | |
| 1673 __ mov(L7, G2_thread); | |
| 1674 | |
| 1675 // move OSR nmethod to I1 | |
| 1676 __ mov(L6, I1); | |
| 1677 | |
| 1678 // OSR buffer to I0 | |
| 1679 __ mov(O0, I0); | |
| 1680 | |
| 1681 // remove the interpreter frame | |
| 1682 __ restore(I5_savedSP, 0, SP); | |
| 1683 | |
| 1684 // Jump to the osr code. | |
| 1685 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
| 1686 __ jmp(O2, G0); | |
| 1687 __ delayed()->nop(); | |
| 1688 | |
| 0 | 1689 } else { |
| 1783 | 1690 // Update Backedge branch separately from invocations |
| 1691 const Register G4_invoke_ctr = G4; | |
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1692 __ increment_backedge_counter(Rcounters, G4_invoke_ctr, G1_scratch); |
| 1783 | 1693 if (ProfileInterpreter) { |
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1694 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
| 1783 | 1695 if (UseOnStackReplacement) { |
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1696 __ test_backedge_count_for_osr(O2_bumped_count, l_cur_bcp, G3_scratch); |
| 1783 | 1697 } |
| 1698 } else { | |
| 1699 if (UseOnStackReplacement) { | |
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1700 __ test_backedge_count_for_osr(G4_invoke_ctr, l_cur_bcp, G3_scratch); |
| 1783 | 1701 } |
| 0 | 1702 } |
| 1703 } | |
| 1704 | |
| 1705 __ bind(Lforward); | |
| 1706 } else | |
| 1707 // Bump bytecode pointer by displacement (take the branch) | |
| 1708 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
| 1709 | |
| 1710 // continue with bytecode @ target | |
| 1711 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
| 1712 // %%%%% and changing dispatch_next to dispatch_only | |
| 1713 __ dispatch_next(vtos); | |
| 1714 } | |
| 1715 | |
| 1716 | |
| 1717 // Note Condition in argument is TemplateTable::Condition | |
| 1718 // arg scope is within class scope | |
| 1719 | |
| 1720 void TemplateTable::if_0cmp(Condition cc) { | |
| 1721 // no pointers, integer only! | |
| 1722 transition(itos, vtos); | |
| 1723 // assume branch is more often taken than not (loops use backward branches) | |
| 1724 __ cmp( Otos_i, 0); | |
| 1725 __ if_cmp(ccNot(cc), false); | |
| 1726 } | |
| 1727 | |
| 1728 | |
| 1729 void TemplateTable::if_icmp(Condition cc) { | |
| 1730 transition(itos, vtos); | |
| 1731 __ pop_i(O1); | |
| 1732 __ cmp(O1, Otos_i); | |
| 1733 __ if_cmp(ccNot(cc), false); | |
| 1734 } | |
| 1735 | |
| 1736 | |
| 1737 void TemplateTable::if_nullcmp(Condition cc) { | |
| 1738 transition(atos, vtos); | |
| 1739 __ tst(Otos_i); | |
| 1740 __ if_cmp(ccNot(cc), true); | |
| 1741 } | |
| 1742 | |
| 1743 | |
| 1744 void TemplateTable::if_acmp(Condition cc) { | |
| 1745 transition(atos, vtos); | |
| 1746 __ pop_ptr(O1); | |
| 1747 __ verify_oop(O1); | |
| 1748 __ verify_oop(Otos_i); | |
| 1749 __ cmp(O1, Otos_i); | |
| 1750 __ if_cmp(ccNot(cc), true); | |
| 1751 } | |
| 1752 | |
| 1753 | |
| 1754 | |
| 1755 void TemplateTable::ret() { | |
| 1756 transition(vtos, vtos); | |
| 1757 locals_index(G3_scratch); | |
| 1758 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1759 // Otos_i contains the bci, compute the bcp from that | |
| 1760 | |
| 1761 #ifdef _LP64 | |
| 1762 #ifdef ASSERT | |
| 1763 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
| 1764 // the result. The return address (really a BCI) was stored with an | |
| 1765 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
| 1766 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
| 1767 // loaded value. | |
| 1768 { Label zzz ; | |
| 1769 __ set (65536, G3_scratch) ; | |
| 1770 __ cmp (Otos_i, G3_scratch) ; | |
| 1771 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
| 1772 __ delayed()->nop(); | |
| 1773 __ stop("BCI is in the wrong register half?"); | |
| 1774 __ bind (zzz) ; | |
| 1775 } | |
| 1776 #endif | |
| 1777 #endif | |
| 1778 | |
| 1779 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1780 | |
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1781 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1782 __ add(G3_scratch, Otos_i, G3_scratch); |
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1783 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1784 __ dispatch_next(vtos); |
| 1785 } | |
| 1786 | |
| 1787 | |
| 1788 void TemplateTable::wide_ret() { | |
| 1789 transition(vtos, vtos); | |
| 1790 locals_index_wide(G3_scratch); | |
| 1791 __ access_local_returnAddress(G3_scratch, Otos_i); | |
| 1792 // Otos_i contains the bci, compute the bcp from that | |
| 1793 | |
| 1794 __ profile_ret(vtos, Otos_i, G4_scratch); | |
| 1795 | |
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1796 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
| 0 | 1797 __ add(G3_scratch, Otos_i, G3_scratch); |
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1798 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
| 0 | 1799 __ dispatch_next(vtos); |
| 1800 } | |
| 1801 | |
| 1802 | |
| 1803 void TemplateTable::tableswitch() { | |
| 1804 transition(itos, vtos); | |
| 1805 Label default_case, continue_execution; | |
| 1806 | |
| 1807 // align bcp | |
| 1808 __ add(Lbcp, BytesPerInt, O1); | |
| 1809 __ and3(O1, -BytesPerInt, O1); | |
| 1810 // load lo, hi | |
| 1811 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
| 1812 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
| 1813 #ifdef _LP64 | |
| 1814 // Sign extend the 32 bits | |
| 1815 __ sra ( Otos_i, 0, Otos_i ); | |
| 1816 #endif /* _LP64 */ | |
| 1817 | |
| 1818 // check against lo & hi | |
| 1819 __ cmp( Otos_i, O2); | |
| 1820 __ br( Assembler::less, false, Assembler::pn, default_case); | |
| 1821 __ delayed()->cmp( Otos_i, O3 ); | |
| 1822 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
| 1823 // lookup dispatch offset | |
| 1824 __ delayed()->sub(Otos_i, O2, O2); | |
| 1825 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
| 1826 __ sll(O2, LogBytesPerInt, O2); | |
| 1827 __ add(O2, 3 * BytesPerInt, O2); | |
| 3839 | 1828 __ ba(continue_execution); |
| 0 | 1829 __ delayed()->ld(O1, O2, O2); |
| 1830 // handle default | |
| 1831 __ bind(default_case); | |
| 1832 __ profile_switch_default(O3); | |
| 1833 __ ld(O1, 0, O2); // get default offset | |
| 1834 // continue execution | |
| 1835 __ bind(continue_execution); | |
| 1836 __ add(Lbcp, O2, Lbcp); | |
| 1837 __ dispatch_next(vtos); | |
| 1838 } | |
| 1839 | |
| 1840 | |
| 1841 void TemplateTable::lookupswitch() { | |
| 1842 transition(itos, itos); | |
| 1843 __ stop("lookupswitch bytecode should have been rewritten"); | |
| 1844 } | |
| 1845 | |
| 1846 void TemplateTable::fast_linearswitch() { | |
| 1847 transition(itos, vtos); | |
| 1848 Label loop_entry, loop, found, continue_execution; | |
| 1849 // align bcp | |
| 1850 __ add(Lbcp, BytesPerInt, O1); | |
| 1851 __ and3(O1, -BytesPerInt, O1); | |
| 1852 // set counter | |
| 1853 __ ld(O1, BytesPerInt, O2); | |
| 1854 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
| 1855 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
| 3839 | 1856 __ ba(loop_entry); |
| 0 | 1857 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
| 1858 | |
| 1859 // table search | |
| 1860 __ bind(loop); | |
| 1861 __ cmp(O4, Otos_i); | |
| 1862 __ br(Assembler::equal, true, Assembler::pn, found); | |
| 1863 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
| 1864 __ inc(O3, 2 * BytesPerInt); | |
| 1865 | |
| 1866 __ bind(loop_entry); | |
| 1867 __ cmp(O2, O3); | |
| 1868 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
| 1869 __ delayed()->ld(O3, 0, O4); | |
| 1870 | |
| 1871 // default case | |
| 1872 __ ld(O1, 0, O4); // get default offset | |
| 1873 if (ProfileInterpreter) { | |
| 1874 __ profile_switch_default(O3); | |
| 3839 | 1875 __ ba_short(continue_execution); |
| 0 | 1876 } |
| 1877 | |
| 1878 // entry found -> get offset | |
| 1879 __ bind(found); | |
| 1880 if (ProfileInterpreter) { | |
| 1881 __ sub(O3, O1, O3); | |
| 1882 __ sub(O3, 2*BytesPerInt, O3); | |
| 1883 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
| 1884 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
| 1885 | |
| 1886 __ bind(continue_execution); | |
| 1887 } | |
| 1888 __ add(Lbcp, O4, Lbcp); | |
| 1889 __ dispatch_next(vtos); | |
| 1890 } | |
| 1891 | |
| 1892 | |
| 1893 void TemplateTable::fast_binaryswitch() { | |
| 1894 transition(itos, vtos); | |
| 1895 // Implementation using the following core algorithm: (copied from Intel) | |
| 1896 // | |
| 1897 // int binary_search(int key, LookupswitchPair* array, int n) { | |
| 1898 // // Binary search according to "Methodik des Programmierens" by | |
| 1899 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
| 1900 // int i = 0; | |
| 1901 // int j = n; | |
| 1902 // while (i+1 < j) { | |
| 1903 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
| 1904 // // with Q: for all i: 0 <= i < n: key < a[i] | |
| 1905 // // where a stands for the array and assuming that the (inexisting) | |
| 1906 // // element a[n] is infinitely big. | |
| 1907 // int h = (i + j) >> 1; | |
| 1908 // // i < h < j | |
| 1909 // if (key < array[h].fast_match()) { | |
| 1910 // j = h; | |
| 1911 // } else { | |
| 1912 // i = h; | |
| 1913 // } | |
| 1914 // } | |
| 1915 // // R: a[i] <= key < a[i+1] or Q | |
| 1916 // // (i.e., if key is within array, i is the correct index) | |
| 1917 // return i; | |
| 1918 // } | |
| 1919 | |
| 1920 // register allocation | |
| 1921 assert(Otos_i == O0, "alias checking"); | |
| 1922 const Register Rkey = Otos_i; // already set (tosca) | |
| 1923 const Register Rarray = O1; | |
| 1924 const Register Ri = O2; | |
| 1925 const Register Rj = O3; | |
| 1926 const Register Rh = O4; | |
| 1927 const Register Rscratch = O5; | |
| 1928 | |
| 1929 const int log_entry_size = 3; | |
| 1930 const int entry_size = 1 << log_entry_size; | |
| 1931 | |
| 1932 Label found; | |
| 1933 // Find Array start | |
| 1934 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
| 1935 __ and3(Rarray, -BytesPerInt, Rarray); | |
| 1936 // initialize i & j (in delay slot) | |
| 1937 __ clr( Ri ); | |
| 1938 | |
| 1939 // and start | |
| 1940 Label entry; | |
| 3839 | 1941 __ ba(entry); |
| 0 | 1942 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
| 1943 // (Rj is already in the native byte-ordering.) | |
| 1944 | |
| 1945 // binary search loop | |
| 1946 { Label loop; | |
| 1947 __ bind( loop ); | |
| 1948 // int h = (i + j) >> 1; | |
| 1949 __ sra( Rh, 1, Rh ); | |
| 1950 // if (key < array[h].fast_match()) { | |
| 1951 // j = h; | |
| 1952 // } else { | |
| 1953 // i = h; | |
| 1954 // } | |
| 1955 __ sll( Rh, log_entry_size, Rscratch ); | |
| 1956 __ ld( Rarray, Rscratch, Rscratch ); | |
| 1957 // (Rscratch is already in the native byte-ordering.) | |
| 1958 __ cmp( Rkey, Rscratch ); | |
| 1959 if ( VM_Version::v9_instructions_work() ) { | |
| 1960 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
| 1961 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
| 1962 } | |
| 1963 else { | |
| 1964 Label end_of_if; | |
| 1965 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
| 1966 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
| 1967 __ mov( Rh, Ri ); // else i = h | |
| 1968 __ bind(end_of_if); // } | |
| 1969 } | |
| 1970 | |
| 1971 // while (i+1 < j) | |
| 1972 __ bind( entry ); | |
| 1973 __ add( Ri, 1, Rscratch ); | |
| 1974 __ cmp(Rscratch, Rj); | |
| 1975 __ br( Assembler::less, true, Assembler::pt, loop ); | |
| 1976 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
| 1977 } | |
| 1978 | |
| 1979 // end of binary search, result index is i (must check again!) | |
| 1980 Label default_case; | |
| 1981 Label continue_execution; | |
| 1982 if (ProfileInterpreter) { | |
| 1983 __ mov( Ri, Rh ); // Save index in i for profiling | |
| 1984 } | |
| 1985 __ sll( Ri, log_entry_size, Ri ); | |
| 1986 __ ld( Rarray, Ri, Rscratch ); | |
| 1987 // (Rscratch is already in the native byte-ordering.) | |
| 1988 __ cmp( Rkey, Rscratch ); | |
| 1989 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
| 1990 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
| 1991 | |
| 1992 // entry found -> j = offset | |
| 1993 __ inc( Ri, BytesPerInt ); | |
| 1994 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
| 1995 __ ld( Rarray, Ri, Rj ); | |
| 1996 // (Rj is already in the native byte-ordering.) | |
| 1997 | |
| 1998 if (ProfileInterpreter) { | |
| 3839 | 1999 __ ba_short(continue_execution); |
| 0 | 2000 } |
| 2001 | |
| 2002 __ bind(default_case); // fall through (if not profiling) | |
| 2003 __ profile_switch_default(Ri); | |
| 2004 | |
| 2005 __ bind(continue_execution); | |
| 2006 __ add( Lbcp, Rj, Lbcp ); | |
| 2007 __ dispatch_next( vtos ); | |
| 2008 } | |
| 2009 | |
| 2010 | |
| 2011 void TemplateTable::_return(TosState state) { | |
| 2012 transition(state, state); | |
| 2013 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
| 2014 | |
| 2015 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
| 2016 assert(state == vtos, "only valid state"); | |
| 2017 __ mov(G0, G3_scratch); | |
| 2018 __ access_local_ptr(G3_scratch, Otos_i); | |
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2019 __ load_klass(Otos_i, O2); |
| 0 | 2020 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2021 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
| 0 | 2022 __ andcc(G3, O2, G0); |
| 2023 Label skip_register_finalizer; | |
| 2024 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
| 2025 __ delayed()->nop(); | |
| 2026 | |
| 2027 // Call out to do finalizer registration | |
| 2028 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
| 2029 | |
| 2030 __ bind(skip_register_finalizer); | |
| 2031 } | |
| 2032 | |
| 2033 __ remove_activation(state, /* throw_monitor_exception */ true); | |
| 2034 | |
| 2035 // The caller's SP was adjusted upon method entry to accomodate | |
| 2036 // the callee's non-argument locals. Undo that adjustment. | |
| 2037 __ ret(); // return to caller | |
| 2038 __ delayed()->restore(I5_savedSP, G0, SP); | |
| 2039 } | |
| 2040 | |
| 2041 | |
| 2042 // ---------------------------------------------------------------------------- | |
| 2043 // Volatile variables demand their effects be made known to all CPU's in | |
| 2044 // order. Store buffers on most chips allow reads & writes to reorder; the | |
| 2045 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
| 2046 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
| 2047 // reorder volatile references, the hardware also must not reorder them). | |
| 2048 // | |
| 2049 // According to the new Java Memory Model (JMM): | |
| 2050 // (1) All volatiles are serialized wrt to each other. | |
| 2051 // ALSO reads & writes act as aquire & release, so: | |
| 2052 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
| 2053 // the read float up to before the read. It's OK for non-volatile memory refs | |
| 2054 // that happen before the volatile read to float down below it. | |
| 2055 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
| 2056 // that happen BEFORE the write float down to after the write. It's OK for | |
| 2057 // non-volatile memory refs that happen after the volatile write to float up | |
| 2058 // before it. | |
| 2059 // | |
| 2060 // We only put in barriers around volatile refs (they are expensive), not | |
| 2061 // _between_ memory refs (that would require us to track the flavor of the | |
| 2062 // previous memory refs). Requirements (2) and (3) require some barriers | |
| 2063 // before volatile stores and after volatile loads. These nearly cover | |
| 2064 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
| 2065 // case is placed after volatile-stores although it could just as well go | |
| 2066 // before volatile-loads. | |
| 2067 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
| 2068 // Helper function to insert a is-volatile test and memory barrier | |
| 2069 // All current sparc implementations run in TSO, needing only StoreLoad | |
| 2070 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
| 2071 __ membar( order_constraint ); | |
| 2072 } | |
| 2073 | |
| 2074 // ---------------------------------------------------------------------------- | |
| 1565 | 2075 void TemplateTable::resolve_cache_and_index(int byte_no, |
| 2076 Register Rcache, | |
| 2077 Register index, | |
| 2078 size_t index_size) { | |
| 0 | 2079 // Depends on cpCacheOop layout! |
| 2080 Label resolved; | |
| 2081 | |
| 1565 | 2082 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2083 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2084 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2085 __ br(Assembler::equal, false, Assembler::pt, resolved); |
| 1503 | 2086 __ delayed()->set((int)bytecode(), O1); |
| 0 | 2087 |
| 2088 address entry; | |
| 2089 switch (bytecode()) { | |
| 2090 case Bytecodes::_getstatic : // fall through | |
| 2091 case Bytecodes::_putstatic : // fall through | |
| 2092 case Bytecodes::_getfield : // fall through | |
| 2093 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
| 2094 case Bytecodes::_invokevirtual : // fall through | |
| 2095 case Bytecodes::_invokespecial : // fall through | |
| 2096 case Bytecodes::_invokestatic : // fall through | |
| 2097 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2098 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
| 1503 | 2099 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2100 default: |
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2101 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2102 break; |
| 0 | 2103 } |
| 2104 // first time invocation - must resolve first | |
| 2105 __ call_VM(noreg, entry, O1); | |
| 2106 // Update registers with resolved info | |
| 1565 | 2107 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
| 0 | 2108 __ bind(resolved); |
| 2109 } | |
| 2110 | |
| 2111 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2112 Register method, |
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2113 Register itable_index, |
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2114 Register flags, |
| 0 | 2115 bool is_invokevirtual, |
| 1565 | 2116 bool is_invokevfinal, |
| 2117 bool is_invokedynamic) { | |
| 0 | 2118 // Uses both G3_scratch and G4_scratch |
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2119 Register cache = G3_scratch; |
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2120 Register index = G4_scratch; |
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2121 assert_different_registers(cache, method, itable_index); |
| 0 | 2122 |
| 2123 // determine constant pool cache field offsets | |
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2124 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
| 0 | 2125 const int method_offset = in_bytes( |
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2126 ConstantPoolCache::base_offset() + |
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2127 ((byte_no == f2_byte) |
| 0 | 2128 ? ConstantPoolCacheEntry::f2_offset() |
| 2129 : ConstantPoolCacheEntry::f1_offset() | |
| 2130 ) | |
| 2131 ); | |
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2132 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2133 ConstantPoolCacheEntry::flags_offset()); |
| 2134 // access constant pool cache fields | |
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2135 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
| 0 | 2136 ConstantPoolCacheEntry::f2_offset()); |
| 2137 | |
| 2138 if (is_invokevfinal) { | |
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2139 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2140 __ ld_ptr(Address(cache, method_offset), method); |
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2141 } else { |
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2142 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2143 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2144 __ ld_ptr(Address(cache, method_offset), method); |
| 0 | 2145 } |
| 2146 | |
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2147 if (itable_index != noreg) { |
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2148 // pick up itable or appendix index from f2 also: |
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2149 __ ld_ptr(Address(cache, index_offset), itable_index); |
| 0 | 2150 } |
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2151 __ ld_ptr(Address(cache, flags_offset), flags); |
| 0 | 2152 } |
| 2153 | |
| 2154 // The Rcache register must be set before call | |
| 2155 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
| 2156 Register Rcache, | |
| 2157 Register index, | |
| 2158 Register Roffset, | |
| 2159 Register Rflags, | |
| 2160 bool is_static) { | |
| 2161 assert_different_registers(Rcache, Rflags, Roffset); | |
| 2162 | |
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2163 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2164 |
| 727 | 2165 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 2166 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
| 0 | 2167 if (is_static) { |
| 727 | 2168 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2169 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2170 __ ld_ptr( Robj, mirror_offset, Robj); |
| 0 | 2171 } |
| 2172 } | |
| 2173 | |
| 2174 // The registers Rcache and index expected to be set before call. | |
| 2175 // Correct values of the Rcache and index registers are preserved. | |
| 2176 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
| 2177 Register index, | |
| 2178 bool is_static, | |
| 2179 bool has_tos) { | |
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2180 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2181 |
| 2182 if (JvmtiExport::can_post_field_access()) { | |
| 2183 // Check to see if a field access watch has been set before we take | |
| 2184 // the time to call into the VM. | |
| 2185 Label Label1; | |
| 2186 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2187 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
| 0 | 2188 __ load_contents(get_field_access_count_addr, G1_scratch); |
| 3839 | 2189 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
| 0 | 2190 |
| 2191 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
| 2192 | |
| 2193 if (is_static) { | |
| 2194 __ clr(Otos_i); | |
| 2195 } else { | |
| 2196 if (has_tos) { | |
| 2197 // save object pointer before call_VM() clobbers it | |
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2198 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
| 0 | 2199 } else { |
| 2200 // Load top of stack (do not pop the value off the stack); | |
| 2201 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
| 2202 } | |
| 2203 __ verify_oop(Otos_i); | |
| 2204 } | |
| 2205 // Otos_i: object pointer or NULL if static | |
| 2206 // Rcache: cache entry pointer | |
| 2207 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
| 2208 Otos_i, Rcache); | |
| 2209 if (!is_static && has_tos) { | |
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2210 __ pop_ptr(Otos_i); // restore object pointer |
| 0 | 2211 __ verify_oop(Otos_i); |
| 2212 } | |
| 2213 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2214 __ bind(Label1); | |
| 2215 } | |
| 2216 } | |
| 2217 | |
| 2218 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
| 2219 transition(vtos, vtos); | |
| 2220 | |
| 2221 Register Rcache = G3_scratch; | |
| 2222 Register index = G4_scratch; | |
| 2223 Register Rclass = Rcache; | |
| 2224 Register Roffset= G4_scratch; | |
| 2225 Register Rflags = G1_scratch; | |
|
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2226 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2227 |
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2228 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2229 jvmti_post_field_access(Rcache, index, is_static, false); |
| 2230 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2231 | |
| 2232 if (!is_static) { | |
| 2233 pop_and_check_object(Rclass); | |
| 2234 } else { | |
| 2235 __ verify_oop(Rclass); | |
| 2236 } | |
| 2237 | |
| 2238 Label exit; | |
| 2239 | |
| 2240 Assembler::Membar_mask_bits membar_bits = | |
| 2241 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2242 | |
| 2243 if (__ membar_has_effect(membar_bits)) { | |
| 2244 // Get volatile flag | |
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2245 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2246 __ and3(Rflags, Lscratch, Lscratch); |
| 2247 } | |
| 2248 | |
| 2249 Label checkVolatile; | |
| 2250 | |
| 2251 // compute field type | |
| 2252 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2253 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2254 // Make sure we don't need to mask Rflags after the above shift |
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2255 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2256 |
| 2257 // Check atos before itos for getstatic, more likely (in Queens at least) | |
| 2258 __ cmp(Rflags, atos); | |
| 2259 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
| 2260 __ delayed() ->cmp(Rflags, itos); | |
| 2261 | |
| 2262 // atos | |
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2263 __ load_heap_oop(Rclass, Roffset, Otos_i); |
| 0 | 2264 __ verify_oop(Otos_i); |
| 2265 __ push(atos); | |
| 2266 if (!is_static) { | |
| 2267 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
| 2268 } | |
| 3839 | 2269 __ ba(checkVolatile); |
| 0 | 2270 __ delayed()->tst(Lscratch); |
| 2271 | |
| 2272 __ bind(notObj); | |
| 2273 | |
| 2274 // cmp(Rflags, itos); | |
| 2275 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
| 2276 __ delayed() ->cmp(Rflags, ltos); | |
| 2277 | |
| 2278 // itos | |
| 2279 __ ld(Rclass, Roffset, Otos_i); | |
| 2280 __ push(itos); | |
| 2281 if (!is_static) { | |
| 2282 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
| 2283 } | |
| 3839 | 2284 __ ba(checkVolatile); |
| 0 | 2285 __ delayed()->tst(Lscratch); |
| 2286 | |
| 2287 __ bind(notInt); | |
| 2288 | |
| 2289 // cmp(Rflags, ltos); | |
| 2290 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
| 2291 __ delayed() ->cmp(Rflags, btos); | |
| 2292 | |
| 2293 // ltos | |
| 2294 // load must be atomic | |
| 2295 __ ld_long(Rclass, Roffset, Otos_l); | |
| 2296 __ push(ltos); | |
| 2297 if (!is_static) { | |
| 2298 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
| 2299 } | |
| 3839 | 2300 __ ba(checkVolatile); |
| 0 | 2301 __ delayed()->tst(Lscratch); |
| 2302 | |
| 2303 __ bind(notLong); | |
| 2304 | |
| 2305 // cmp(Rflags, btos); | |
| 2306 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
| 2307 __ delayed() ->cmp(Rflags, ctos); | |
| 2308 | |
| 2309 // btos | |
| 2310 __ ldsb(Rclass, Roffset, Otos_i); | |
| 2311 __ push(itos); | |
| 2312 if (!is_static) { | |
| 2313 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
| 2314 } | |
| 3839 | 2315 __ ba(checkVolatile); |
| 0 | 2316 __ delayed()->tst(Lscratch); |
| 2317 | |
| 2318 __ bind(notByte); | |
| 2319 | |
| 2320 // cmp(Rflags, ctos); | |
| 2321 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
| 2322 __ delayed() ->cmp(Rflags, stos); | |
| 2323 | |
| 2324 // ctos | |
| 2325 __ lduh(Rclass, Roffset, Otos_i); | |
| 2326 __ push(itos); | |
| 2327 if (!is_static) { | |
| 2328 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
| 2329 } | |
| 3839 | 2330 __ ba(checkVolatile); |
| 0 | 2331 __ delayed()->tst(Lscratch); |
| 2332 | |
| 2333 __ bind(notChar); | |
| 2334 | |
| 2335 // cmp(Rflags, stos); | |
| 2336 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
| 2337 __ delayed() ->cmp(Rflags, ftos); | |
| 2338 | |
| 2339 // stos | |
| 2340 __ ldsh(Rclass, Roffset, Otos_i); | |
| 2341 __ push(itos); | |
| 2342 if (!is_static) { | |
| 2343 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
| 2344 } | |
| 3839 | 2345 __ ba(checkVolatile); |
| 0 | 2346 __ delayed()->tst(Lscratch); |
| 2347 | |
| 2348 __ bind(notShort); | |
| 2349 | |
| 2350 | |
| 2351 // cmp(Rflags, ftos); | |
| 2352 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
| 2353 __ delayed() ->tst(Lscratch); | |
| 2354 | |
| 2355 // ftos | |
| 2356 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
| 2357 __ push(ftos); | |
| 2358 if (!is_static) { | |
| 2359 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
| 2360 } | |
| 3839 | 2361 __ ba(checkVolatile); |
| 0 | 2362 __ delayed()->tst(Lscratch); |
| 2363 | |
| 2364 __ bind(notFloat); | |
| 2365 | |
| 2366 | |
| 2367 // dtos | |
| 2368 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
| 2369 __ push(dtos); | |
| 2370 if (!is_static) { | |
| 2371 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
| 2372 } | |
| 2373 | |
| 2374 __ bind(checkVolatile); | |
| 2375 if (__ membar_has_effect(membar_bits)) { | |
| 2376 // __ tst(Lscratch); executed in delay slot | |
| 2377 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2378 __ delayed()->nop(); | |
| 2379 volatile_barrier(membar_bits); | |
| 2380 } | |
| 2381 | |
| 2382 __ bind(exit); | |
| 2383 } | |
| 2384 | |
| 2385 | |
| 2386 void TemplateTable::getfield(int byte_no) { | |
| 2387 getfield_or_static(byte_no, false); | |
| 2388 } | |
| 2389 | |
| 2390 void TemplateTable::getstatic(int byte_no) { | |
| 2391 getfield_or_static(byte_no, true); | |
| 2392 } | |
| 2393 | |
| 2394 | |
| 2395 void TemplateTable::fast_accessfield(TosState state) { | |
| 2396 transition(atos, state); | |
| 2397 Register Rcache = G3_scratch; | |
| 2398 Register index = G4_scratch; | |
| 2399 Register Roffset = G4_scratch; | |
| 2400 Register Rflags = Rcache; | |
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2401 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2402 |
| 2403 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2404 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
| 2405 | |
| 727 | 2406 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2407 |
| 2408 __ null_check(Otos_i); | |
| 2409 __ verify_oop(Otos_i); | |
| 2410 | |
| 2411 Label exit; | |
| 2412 | |
| 2413 Assembler::Membar_mask_bits membar_bits = | |
| 2414 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2415 if (__ membar_has_effect(membar_bits)) { | |
| 2416 // Get volatile flag | |
| 727 | 2417 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2418 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2419 } |
| 2420 | |
| 2421 switch (bytecode()) { | |
| 2422 case Bytecodes::_fast_bgetfield: | |
| 2423 __ ldsb(Otos_i, Roffset, Otos_i); | |
| 2424 break; | |
| 2425 case Bytecodes::_fast_cgetfield: | |
| 2426 __ lduh(Otos_i, Roffset, Otos_i); | |
| 2427 break; | |
| 2428 case Bytecodes::_fast_sgetfield: | |
| 2429 __ ldsh(Otos_i, Roffset, Otos_i); | |
| 2430 break; | |
| 2431 case Bytecodes::_fast_igetfield: | |
| 2432 __ ld(Otos_i, Roffset, Otos_i); | |
| 2433 break; | |
| 2434 case Bytecodes::_fast_lgetfield: | |
| 2435 __ ld_long(Otos_i, Roffset, Otos_l); | |
| 2436 break; | |
| 2437 case Bytecodes::_fast_fgetfield: | |
| 2438 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
| 2439 break; | |
| 2440 case Bytecodes::_fast_dgetfield: | |
| 2441 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
| 2442 break; | |
| 2443 case Bytecodes::_fast_agetfield: | |
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2444 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
| 0 | 2445 break; |
| 2446 default: | |
| 2447 ShouldNotReachHere(); | |
| 2448 } | |
| 2449 | |
| 2450 if (__ membar_has_effect(membar_bits)) { | |
| 2451 __ btst(Lscratch, Rflags); | |
| 2452 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2453 __ delayed()->nop(); | |
| 2454 volatile_barrier(membar_bits); | |
| 2455 __ bind(exit); | |
| 2456 } | |
| 2457 | |
| 2458 if (state == atos) { | |
| 2459 __ verify_oop(Otos_i); // does not blow flags! | |
| 2460 } | |
| 2461 } | |
| 2462 | |
| 2463 void TemplateTable::jvmti_post_fast_field_mod() { | |
| 2464 if (JvmtiExport::can_post_field_modification()) { | |
| 2465 // Check to see if a field modification watch has been set before we take | |
| 2466 // the time to call into the VM. | |
| 2467 Label done; | |
| 727 | 2468 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2469 __ load_contents(get_field_modification_count_addr, G4_scratch); |
| 3839 | 2470 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
| 0 | 2471 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
| 2472 __ verify_oop(G4_scratch); | |
| 2473 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
| 2474 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
| 2475 // Save tos values before call_VM() clobbers them. Since we have | |
| 2476 // to do it for every data type, we use the saved values as the | |
| 2477 // jvalue object. | |
| 2478 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
| 2479 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
| 2480 case Bytecodes::_fast_bputfield: // fall through | |
| 2481 case Bytecodes::_fast_sputfield: // fall through | |
| 2482 case Bytecodes::_fast_cputfield: // fall through | |
| 2483 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
| 2484 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
| 2485 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
| 2486 // get words in right order for use as jvalue object | |
| 2487 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
| 2488 } | |
| 2489 // setup pointer to jvalue object | |
| 2490 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
| 2491 // G4_scratch: object pointer | |
| 2492 // G1_scratch: cache entry pointer | |
| 2493 // G3_scratch: jvalue object on the stack | |
| 2494 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
| 2495 switch (bytecode()) { // restore tos values | |
| 2496 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
| 2497 case Bytecodes::_fast_bputfield: // fall through | |
| 2498 case Bytecodes::_fast_sputfield: // fall through | |
| 2499 case Bytecodes::_fast_cputfield: // fall through | |
| 2500 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
| 2501 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
| 2502 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
| 2503 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
| 2504 } | |
| 2505 __ bind(done); | |
| 2506 } | |
| 2507 } | |
| 2508 | |
| 2509 // The registers Rcache and index expected to be set before call. | |
| 2510 // The function may destroy various registers, just not the Rcache and index registers. | |
| 2511 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2512 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2513 |
| 2514 if (JvmtiExport::can_post_field_modification()) { | |
| 2515 // Check to see if a field modification watch has been set before we take | |
| 2516 // the time to call into the VM. | |
| 2517 Label Label1; | |
| 2518 assert_different_registers(Rcache, index, G1_scratch); | |
| 727 | 2519 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
| 0 | 2520 __ load_contents(get_field_modification_count_addr, G1_scratch); |
| 3839 | 2521 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
| 0 | 2522 |
| 2523 // The Rcache and index registers have been already set. | |
| 2524 // This allows to eliminate this call but the Rcache and index | |
| 2525 // registers must be correspondingly used after this line. | |
| 2526 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
| 2527 | |
| 2528 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
| 2529 if (is_static) { | |
| 2530 // Life is simple. Null out the object pointer. | |
| 2531 __ clr(G4_scratch); | |
| 2532 } else { | |
| 2533 Register Rflags = G1_scratch; | |
| 2534 // Life is harder. The stack holds the value on top, followed by the | |
| 2535 // object. We don't know the size of the value, though; it could be | |
| 2536 // one or two words depending on its type. As a result, we must find | |
| 2537 // the type to determine where the object is. | |
| 2538 | |
| 2539 Label two_word, valsizeknown; | |
| 727 | 2540 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2541 __ mov(Lesp, G4_scratch); |
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2542 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2543 // Make sure we don't need to mask Rflags after the above shift |
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2544 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2545 __ cmp(Rflags, ltos); |
| 2546 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2547 __ delayed()->cmp(Rflags, dtos); | |
| 2548 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
| 2549 __ delayed()->nop(); | |
| 2550 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
| 3839 | 2551 __ ba_short(valsizeknown); |
| 0 | 2552 __ bind(two_word); |
| 2553 | |
| 2554 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
| 2555 | |
| 2556 __ bind(valsizeknown); | |
| 2557 // setup object pointer | |
| 2558 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
| 2559 __ verify_oop(G4_scratch); | |
| 2560 } | |
| 2561 // setup pointer to jvalue object | |
| 2562 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
| 2563 // G4_scratch: object pointer or NULL if static | |
| 2564 // G3_scratch: cache entry pointer | |
| 2565 // G1_scratch: jvalue object on the stack | |
| 2566 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
| 2567 G4_scratch, G3_scratch, G1_scratch); | |
| 2568 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
| 2569 __ bind(Label1); | |
| 2570 } | |
| 2571 } | |
| 2572 | |
| 2573 void TemplateTable::pop_and_check_object(Register r) { | |
| 2574 __ pop_ptr(r); | |
| 2575 __ null_check(r); // for field access must check obj. | |
| 2576 __ verify_oop(r); | |
| 2577 } | |
| 2578 | |
| 2579 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
| 2580 transition(vtos, vtos); | |
| 2581 Register Rcache = G3_scratch; | |
| 2582 Register index = G4_scratch; | |
| 2583 Register Rclass = Rcache; | |
| 2584 Register Roffset= G4_scratch; | |
| 2585 Register Rflags = G1_scratch; | |
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2586 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2587 |
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2588 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
| 0 | 2589 jvmti_post_field_mod(Rcache, index, is_static); |
| 2590 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
| 2591 | |
| 2592 Assembler::Membar_mask_bits read_bits = | |
| 2593 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2594 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2595 | |
| 2596 Label notVolatile, checkVolatile, exit; | |
| 2597 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
|
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2598 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2599 __ and3(Rflags, Lscratch, Lscratch); |
| 2600 | |
| 2601 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2602 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2603 volatile_barrier(read_bits); |
| 2604 __ bind(notVolatile); | |
| 2605 } | |
| 2606 } | |
| 2607 | |
|
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2608 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
|
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2609 // Make sure we don't need to mask Rflags after the above shift |
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2610 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 2611 |
| 2612 // compute field type | |
| 2613 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
| 2614 | |
| 2615 if (is_static) { | |
| 2616 // putstatic with object type most likely, check that first | |
|
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|
2617 __ cmp(Rflags, atos); |
| 0 | 2618 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
|
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|
2619 __ delayed()->cmp(Rflags, itos); |
| 0 | 2620 |
| 2621 // atos | |
|
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|
2622 { |
|
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|
2623 __ pop_ptr(); |
|
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|
2624 __ verify_oop(Otos_i); |
|
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|
2625 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
|
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|
2626 __ ba(checkVolatile); |
|
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|
2627 __ delayed()->tst(Lscratch); |
|
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|
2628 } |
| 0 | 2629 |
| 2630 __ bind(notObj); | |
|
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|
2631 // cmp(Rflags, itos); |
| 0 | 2632 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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2633 __ delayed()->cmp(Rflags, btos); |
| 0 | 2634 |
| 2635 // itos | |
|
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|
2636 { |
|
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|
2637 __ pop_i(); |
|
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|
2638 __ st(Otos_i, Rclass, Roffset); |
|
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|
2639 __ ba(checkVolatile); |
|
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|
2640 __ delayed()->tst(Lscratch); |
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|
2641 } |
| 0 | 2642 |
| 2643 __ bind(notInt); | |
| 2644 } else { | |
| 2645 // putfield with int type most likely, check that first | |
|
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|
2646 __ cmp(Rflags, itos); |
| 0 | 2647 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
|
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|
2648 __ delayed()->cmp(Rflags, atos); |
| 0 | 2649 |
| 2650 // itos | |
|
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|
2651 { |
|
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|
2652 __ pop_i(); |
|
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|
2653 pop_and_check_object(Rclass); |
|
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|
2654 __ st(Otos_i, Rclass, Roffset); |
|
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|
2655 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2656 __ ba(checkVolatile); |
|
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|
2657 __ delayed()->tst(Lscratch); |
|
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|
2658 } |
| 0 | 2659 |
| 2660 __ bind(notInt); | |
|
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|
2661 // cmp(Rflags, atos); |
| 0 | 2662 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
|
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|
2663 __ delayed()->cmp(Rflags, btos); |
| 0 | 2664 |
| 2665 // atos | |
|
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|
2666 { |
|
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|
2667 __ pop_ptr(); |
|
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|
2668 pop_and_check_object(Rclass); |
|
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|
2669 __ verify_oop(Otos_i); |
|
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|
2670 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
|
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|
2671 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2672 __ ba(checkVolatile); |
|
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|
2673 __ delayed()->tst(Lscratch); |
|
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|
2674 } |
| 0 | 2675 |
| 2676 __ bind(notObj); | |
| 2677 } | |
| 2678 | |
|
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|
2679 // cmp(Rflags, btos); |
| 0 | 2680 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
|
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|
2681 __ delayed()->cmp(Rflags, ltos); |
| 0 | 2682 |
| 2683 // btos | |
|
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|
2684 { |
|
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|
2685 __ pop_i(); |
|
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|
2686 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2687 __ stb(Otos_i, Rclass, Roffset); |
|
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|
2688 if (!is_static) { |
|
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|
2689 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2690 } |
|
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|
2691 __ ba(checkVolatile); |
|
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|
2692 __ delayed()->tst(Lscratch); |
| 0 | 2693 } |
| 2694 | |
| 2695 __ bind(notByte); | |
|
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|
2696 // cmp(Rflags, ltos); |
| 0 | 2697 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
|
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|
2698 __ delayed()->cmp(Rflags, ctos); |
| 0 | 2699 |
| 2700 // ltos | |
|
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|
2701 { |
|
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|
2702 __ pop_l(); |
|
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diff
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|
2703 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2704 __ st_long(Otos_l, Rclass, Roffset); |
|
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|
2705 if (!is_static) { |
|
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|
2706 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2707 } |
|
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|
2708 __ ba(checkVolatile); |
|
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|
2709 __ delayed()->tst(Lscratch); |
| 0 | 2710 } |
| 2711 | |
| 2712 __ bind(notLong); | |
|
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|
2713 // cmp(Rflags, ctos); |
| 0 | 2714 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
|
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|
2715 __ delayed()->cmp(Rflags, stos); |
| 0 | 2716 |
| 2717 // ctos (char) | |
|
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|
2718 { |
|
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|
2719 __ pop_i(); |
|
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diff
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|
2720 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2721 __ sth(Otos_i, Rclass, Roffset); |
|
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|
2722 if (!is_static) { |
|
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|
2723 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2724 } |
|
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|
2725 __ ba(checkVolatile); |
|
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|
2726 __ delayed()->tst(Lscratch); |
| 0 | 2727 } |
| 2728 | |
| 2729 __ bind(notChar); | |
|
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|
2730 // cmp(Rflags, stos); |
| 0 | 2731 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
|
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|
2732 __ delayed()->cmp(Rflags, ftos); |
|
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|
2733 |
|
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|
2734 // stos (short) |
|
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|
2735 { |
|
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|
2736 __ pop_i(); |
|
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|
2737 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2738 __ sth(Otos_i, Rclass, Roffset); |
|
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|
2739 if (!is_static) { |
|
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|
2740 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2741 } |
|
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|
2742 __ ba(checkVolatile); |
|
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|
2743 __ delayed()->tst(Lscratch); |
| 0 | 2744 } |
| 2745 | |
| 2746 __ bind(notShort); | |
|
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|
2747 // cmp(Rflags, ftos); |
| 0 | 2748 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
| 2749 __ delayed()->nop(); | |
| 2750 | |
| 2751 // ftos | |
|
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|
2752 { |
|
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|
2753 __ pop_f(); |
|
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|
2754 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2755 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
|
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|
2756 if (!is_static) { |
|
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|
2757 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
|
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|
2758 } |
|
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|
2759 __ ba(checkVolatile); |
|
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|
2760 __ delayed()->tst(Lscratch); |
| 0 | 2761 } |
| 2762 | |
| 2763 __ bind(notFloat); | |
| 2764 | |
| 2765 // dtos | |
|
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|
2766 { |
|
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|
2767 __ pop_d(); |
|
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|
2768 if (!is_static) pop_and_check_object(Rclass); |
|
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|
2769 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
|
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2770 if (!is_static) { |
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2771 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
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2772 } |
| 0 | 2773 } |
| 2774 | |
| 2775 __ bind(checkVolatile); | |
| 2776 __ tst(Lscratch); | |
| 2777 | |
| 2778 if (__ membar_has_effect(write_bits)) { | |
| 2779 // __ tst(Lscratch); in delay slot | |
| 2780 __ br(Assembler::zero, false, Assembler::pt, exit); | |
| 2781 __ delayed()->nop(); | |
| 2782 volatile_barrier(Assembler::StoreLoad); | |
| 2783 __ bind(exit); | |
| 2784 } | |
| 2785 } | |
| 2786 | |
| 2787 void TemplateTable::fast_storefield(TosState state) { | |
| 2788 transition(state, vtos); | |
| 2789 Register Rcache = G3_scratch; | |
| 2790 Register Rclass = Rcache; | |
| 2791 Register Roffset= G4_scratch; | |
| 2792 Register Rflags = G1_scratch; | |
|
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2793 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
| 0 | 2794 |
| 2795 jvmti_post_fast_field_mod(); | |
| 2796 | |
| 2797 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
| 2798 | |
| 2799 Assembler::Membar_mask_bits read_bits = | |
| 2800 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
| 2801 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
| 2802 | |
| 2803 Label notVolatile, checkVolatile, exit; | |
| 2804 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
| 727 | 2805 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
|
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2806 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2807 __ and3(Rflags, Lscratch, Lscratch); |
| 2808 if (__ membar_has_effect(read_bits)) { | |
| 3839 | 2809 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
| 0 | 2810 volatile_barrier(read_bits); |
| 2811 __ bind(notVolatile); | |
| 2812 } | |
| 2813 } | |
| 2814 | |
| 727 | 2815 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2816 pop_and_check_object(Rclass); |
| 2817 | |
| 2818 switch (bytecode()) { | |
| 2819 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
| 2820 case Bytecodes::_fast_cputfield: /* fall through */ | |
| 2821 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
| 2822 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
| 2823 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
| 2824 case Bytecodes::_fast_fputfield: | |
| 2825 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
| 2826 break; | |
| 2827 case Bytecodes::_fast_dputfield: | |
| 2828 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
| 2829 break; | |
| 2830 case Bytecodes::_fast_aputfield: | |
|
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2831 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
| 0 | 2832 break; |
| 2833 default: | |
| 2834 ShouldNotReachHere(); | |
| 2835 } | |
| 2836 | |
| 2837 if (__ membar_has_effect(write_bits)) { | |
| 3839 | 2838 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
| 0 | 2839 volatile_barrier(Assembler::StoreLoad); |
| 2840 __ bind(exit); | |
| 2841 } | |
| 2842 } | |
| 2843 | |
| 2844 | |
| 2845 void TemplateTable::putfield(int byte_no) { | |
| 2846 putfield_or_static(byte_no, false); | |
| 2847 } | |
| 2848 | |
| 2849 void TemplateTable::putstatic(int byte_no) { | |
| 2850 putfield_or_static(byte_no, true); | |
| 2851 } | |
| 2852 | |
| 2853 | |
| 2854 void TemplateTable::fast_xaccess(TosState state) { | |
| 2855 transition(vtos, state); | |
| 2856 Register Rcache = G3_scratch; | |
| 2857 Register Roffset = G4_scratch; | |
| 2858 Register Rflags = G4_scratch; | |
| 2859 Register Rreceiver = Lscratch; | |
| 2860 | |
| 1506 | 2861 __ ld_ptr(Llocals, 0, Rreceiver); |
| 0 | 2862 |
| 2863 // access constant pool cache (is resolved) | |
| 2864 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
|
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2865 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
| 0 | 2866 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
| 2867 | |
| 2868 __ verify_oop(Rreceiver); | |
| 2869 __ null_check(Rreceiver); | |
| 2870 if (state == atos) { | |
|
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2871 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
| 0 | 2872 } else if (state == itos) { |
| 2873 __ ld (Rreceiver, Roffset, Otos_i) ; | |
| 2874 } else if (state == ftos) { | |
| 2875 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
| 2876 } else { | |
| 2877 ShouldNotReachHere(); | |
| 2878 } | |
| 2879 | |
| 2880 Assembler::Membar_mask_bits membar_bits = | |
| 2881 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
| 2882 if (__ membar_has_effect(membar_bits)) { | |
| 2883 | |
| 2884 // Get is_volatile value in Rflags and check if membar is needed | |
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2885 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
| 0 | 2886 |
| 2887 // Test volatile | |
| 2888 Label notVolatile; | |
|
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2889 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
| 0 | 2890 __ btst(Rflags, Lscratch); |
| 2891 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
| 2892 __ delayed()->nop(); | |
| 2893 volatile_barrier(membar_bits); | |
| 2894 __ bind(notVolatile); | |
| 2895 } | |
| 2896 | |
| 2897 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
| 2898 __ sub(Lbcp, 1, Lbcp); | |
| 2899 } | |
| 2900 | |
| 2901 //---------------------------------------------------------------------------------------------------- | |
| 2902 // Calls | |
| 2903 | |
| 2904 void TemplateTable::count_calls(Register method, Register temp) { | |
| 2905 // implemented elsewhere | |
| 2906 ShouldNotReachHere(); | |
| 2907 } | |
| 2908 | |
|
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2909 void TemplateTable::prepare_invoke(int byte_no, |
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2910 Register method, // linked method (or i-klass) |
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2911 Register ra, // return address |
|
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2912 Register index, // itable index, MethodType, etc. |
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2913 Register recv, // if caller wants to see it |
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2914 Register flags // if caller wants to test it |
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2915 ) { |
|
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2916 // determine flags |
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2917 const Bytecodes::Code code = bytecode(); |
|
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2918 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2919 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2920 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2921 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2922 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2923 const bool load_receiver = (recv != noreg); |
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2924 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
|
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2925 assert(recv == noreg || recv == O0, ""); |
|
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2926 assert(flags == noreg || flags == O1, ""); |
|
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2927 |
|
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2928 // setup registers & access constant pool cache |
|
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2929 if (recv == noreg) recv = O0; |
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2930 if (flags == noreg) flags = O1; |
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2931 const Register temp = O2; |
|
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2932 assert_different_registers(method, ra, index, recv, flags, temp); |
|
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2933 |
|
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2934 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
|
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2935 |
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2936 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
|
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2937 |
|
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2938 // maybe push appendix to arguments |
|
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2939 if (is_invokedynamic || is_invokehandle) { |
|
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2940 Label L_no_push; |
|
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2941 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
|
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2942 __ btst(flags, temp); |
|
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2943 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
|
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2944 __ delayed()->nop(); |
|
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2945 // Push the appendix as a trailing parameter. |
|
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2946 // This must be done before we get the receiver, |
|
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|
2947 // since the parameter_size includes it. |
|
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2948 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
|
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2949 __ load_resolved_reference_at_index(temp, index); |
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2950 __ verify_oop(temp); |
|
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2951 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
|
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2952 __ bind(L_no_push); |
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|
2953 } |
|
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2954 |
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2955 // load receiver if needed (after appendix is pushed so parameter size is correct) |
|
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2956 if (load_receiver) { |
|
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2957 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
|
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2958 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
|
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2959 __ verify_oop(recv); |
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|
2960 } |
|
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|
2961 |
|
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2962 // compute return type |
|
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|
2963 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
|
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2964 // Make sure we don't need to mask flags after the above shift |
|
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2965 ConstantPoolCacheEntry::verify_tos_state_shift(); |
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|
2966 // load return address |
|
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|
2967 { |
|
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2968 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
|
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2969 (address)Interpreter::return_5_addrs_by_index_table() : |
|
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2970 (address)Interpreter::return_3_addrs_by_index_table(); |
|
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2971 AddressLiteral table(table_addr); |
|
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2972 __ set(table, temp); |
|
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2973 __ sll(ra, LogBytesPerWord, ra); |
|
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2974 __ ld_ptr(Address(temp, ra), ra); |
|
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|
2975 } |
|
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|
2976 } |
|
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|
2977 |
|
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|
2978 |
| 0 | 2979 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
| 2980 Register Rtemp = G4_scratch; | |
| 2981 Register Rcall = Rindex; | |
| 2982 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 2983 | |
|
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2984 // get target Method* & entry point |
|
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|
2985 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
| 0 | 2986 __ call_from_interpreter(Rcall, Gargs, Rret); |
| 2987 } | |
| 2988 | |
| 2989 void TemplateTable::invokevirtual(int byte_no) { | |
| 2990 transition(vtos, vtos); | |
| 1565 | 2991 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 2992 |
| 2993 Register Rscratch = G3_scratch; | |
|
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2994 Register Rtemp = G4_scratch; |
|
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2995 Register Rret = Lscratch; |
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2996 Register O0_recv = O0; |
| 0 | 2997 Label notFinal; |
| 2998 | |
| 1565 | 2999 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
| 0 | 3000 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3001 | |
| 3002 // Check for vfinal | |
|
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3003 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
| 0 | 3004 __ btst(Rret, G4_scratch); |
| 3005 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 3006 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
| 3007 | |
| 3008 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
| 3009 | |
| 3010 invokevfinal_helper(Rscratch, Rret); | |
| 3011 | |
| 3012 __ bind(notFinal); | |
| 3013 | |
| 3014 __ mov(G5_method, Rscratch); // better scratch register | |
|
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3015 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
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|
3016 // receiver is in O0_recv |
|
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|
3017 __ verify_oop(O0_recv); |
| 0 | 3018 |
| 3019 // get return address | |
| 727 | 3020 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3021 __ set(table, Rtemp); | |
|
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3022 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
|
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3023 // Make sure we don't need to mask Rret after the above shift |
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3024 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3025 __ sll(Rret, LogBytesPerWord, Rret); |
| 3026 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3027 | |
| 3028 // get receiver klass | |
|
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3029 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3030 __ load_klass(O0_recv, O0_recv); |
|
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3031 __ verify_klass_ptr(O0_recv); |
|
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3032 |
|
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3033 __ profile_virtual_call(O0_recv, O4); |
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|
3034 |
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|
3035 generate_vtable_call(O0_recv, Rscratch, Rret); |
| 0 | 3036 } |
| 3037 | |
| 3038 void TemplateTable::fast_invokevfinal(int byte_no) { | |
| 3039 transition(vtos, vtos); | |
| 1565 | 3040 assert(byte_no == f2_byte, "use this argument"); |
| 0 | 3041 |
| 3042 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
| 1565 | 3043 /*is_invokevfinal*/true, false); |
| 0 | 3044 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
| 3045 invokevfinal_helper(G3_scratch, Lscratch); | |
| 3046 } | |
| 3047 | |
| 3048 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
| 3049 Register Rtemp = G4_scratch; | |
| 3050 | |
| 3051 // Load receiver from stack slot | |
|
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3052 __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G4_scratch); |
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3053 __ lduh(G4_scratch, in_bytes(ConstMethod::size_of_parameters_offset()), G4_scratch); |
| 0 | 3054 __ load_receiver(G4_scratch, O0); |
| 3055 | |
| 3056 // receiver NULL check | |
| 3057 __ null_check(O0); | |
| 3058 | |
| 3059 __ profile_final_call(O4); | |
| 3060 | |
| 3061 // get return address | |
| 727 | 3062 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
| 3063 __ set(table, Rtemp); | |
|
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3064 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3065 // Make sure we don't need to mask Rret after the above shift |
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|
3066 ConstantPoolCacheEntry::verify_tos_state_shift(); |
| 0 | 3067 __ sll(Rret, LogBytesPerWord, Rret); |
| 3068 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
| 3069 | |
| 3070 | |
| 3071 // do the call | |
| 3072 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
| 3073 } | |
| 3074 | |
|
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3075 |
| 0 | 3076 void TemplateTable::invokespecial(int byte_no) { |
| 3077 transition(vtos, vtos); | |
| 1565 | 3078 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3079 |
|
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3080 const Register Rret = Lscratch; |
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3081 const Register O0_recv = O0; |
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3082 const Register Rscratch = G3_scratch; |
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|
3083 |
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3084 prepare_invoke(byte_no, G5_method, Rret, noreg, O0_recv); // get receiver also for null check |
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3085 __ null_check(O0_recv); |
| 0 | 3086 |
| 3087 // do the call | |
|
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|
3088 __ profile_call(O4); |
| 0 | 3089 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3090 } | |
| 3091 | |
|
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3092 |
| 0 | 3093 void TemplateTable::invokestatic(int byte_no) { |
| 3094 transition(vtos, vtos); | |
| 1565 | 3095 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3096 |
|
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3097 const Register Rret = Lscratch; |
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3098 const Register Rscratch = G3_scratch; |
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3099 |
|
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3100 prepare_invoke(byte_no, G5_method, Rret); // get f1 Method* |
| 0 | 3101 |
| 3102 // do the call | |
|
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3103 __ profile_call(O4); |
| 0 | 3104 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 3105 } | |
| 3106 | |
|
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3107 void TemplateTable::invokeinterface_object_method(Register RKlass, |
| 0 | 3108 Register Rcall, |
| 3109 Register Rret, | |
| 3110 Register Rflags) { | |
| 3111 Register Rscratch = G4_scratch; | |
| 3112 Register Rindex = Lscratch; | |
| 3113 | |
| 3114 assert_different_registers(Rscratch, Rindex, Rret); | |
| 3115 | |
| 3116 Label notFinal; | |
| 3117 | |
| 3118 // Check for vfinal | |
|
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3119 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), Rscratch); |
| 0 | 3120 __ btst(Rflags, Rscratch); |
| 3121 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
| 3122 __ delayed()->nop(); | |
| 3123 | |
| 3124 __ profile_final_call(O4); | |
| 3125 | |
|
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3126 // do the call - the index (f2) contains the Method* |
| 0 | 3127 assert_different_registers(G5_method, Gargs, Rcall); |
| 3128 __ mov(Rindex, G5_method); | |
| 3129 __ call_from_interpreter(Rcall, Gargs, Rret); | |
| 3130 __ bind(notFinal); | |
| 3131 | |
|
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3132 __ profile_virtual_call(RKlass, O4); |
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3133 generate_vtable_call(RKlass, Rindex, Rret); |
| 0 | 3134 } |
| 3135 | |
| 3136 | |
| 3137 void TemplateTable::invokeinterface(int byte_no) { | |
| 3138 transition(vtos, vtos); | |
| 1565 | 3139 assert(byte_no == f1_byte, "use this argument"); |
| 0 | 3140 |
|
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|
3141 const Register Rinterface = G1_scratch; |
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3142 const Register Rret = G3_scratch; |
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3143 const Register Rindex = Lscratch; |
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3144 const Register O0_recv = O0; |
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3145 const Register O1_flags = O1; |
|
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3146 const Register O2_Klass = O2; |
|
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|
3147 const Register Rscratch = G4_scratch; |
| 0 | 3148 assert_different_registers(Rscratch, G5_method); |
| 3149 | |
|
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|
3150 prepare_invoke(byte_no, Rinterface, Rret, Rindex, O0_recv, O1_flags); |
| 0 | 3151 |
| 3152 // get receiver klass | |
|
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3153 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
|
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|
3154 __ load_klass(O0_recv, O2_Klass); |
| 0 | 3155 |
| 3156 // Special case of invokeinterface called for virtual method of | |
| 3157 // java.lang.Object. See cpCacheOop.cpp for details. | |
| 3158 // This code isn't produced by javac, but could be produced by | |
| 3159 // another compliant java compiler. | |
| 3160 Label notMethod; | |
|
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|
3161 __ set((1 << ConstantPoolCacheEntry::is_forced_virtual_shift), Rscratch); |
|
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|
3162 __ btst(O1_flags, Rscratch); |
| 0 | 3163 __ br(Assembler::zero, false, Assembler::pt, notMethod); |
| 3164 __ delayed()->nop(); | |
| 3165 | |
|
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3166 invokeinterface_object_method(O2_Klass, Rinterface, Rret, O1_flags); |
| 0 | 3167 |
| 3168 __ bind(notMethod); | |
| 3169 | |
|
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3170 __ profile_virtual_call(O2_Klass, O4); |
| 0 | 3171 |
| 3172 // | |
| 3173 // find entry point to call | |
| 3174 // | |
| 3175 | |
| 3176 // compute start of first itableOffsetEntry (which is at end of vtable) | |
|
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3177 const int base = InstanceKlass::vtable_start_offset() * wordSize; |
| 0 | 3178 Label search; |
|
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|
3179 Register Rtemp = O1_flags; |
|
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|
3180 |
|
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3181 __ ld(O2_Klass, InstanceKlass::vtable_length_offset() * wordSize, Rtemp); |
| 0 | 3182 if (align_object_offset(1) > 1) { |
| 3183 __ round_to(Rtemp, align_object_offset(1)); | |
| 3184 } | |
| 3185 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
| 3186 if (Assembler::is_simm13(base)) { | |
| 3187 __ add(Rtemp, base, Rtemp); | |
| 3188 } else { | |
| 3189 __ set(base, Rscratch); | |
| 3190 __ add(Rscratch, Rtemp, Rtemp); | |
| 3191 } | |
|
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3192 __ add(O2_Klass, Rtemp, Rscratch); |
| 0 | 3193 |
| 3194 __ bind(search); | |
| 3195 | |
| 3196 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
| 3197 { | |
| 3198 Label ok; | |
| 3199 | |
| 3200 // Check that entry is non-null. Null entries are probably a bytecode | |
| 605 | 3201 // problem. If the interface isn't implemented by the receiver class, |
| 0 | 3202 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
| 3203 // this too but that's only if the entry isn't already resolved, so we | |
| 3204 // need to check again. | |
| 3839 | 3205 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
| 0 | 3206 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
| 3207 __ should_not_reach_here(); | |
| 3208 __ bind(ok); | |
| 3209 } | |
| 3210 | |
| 3211 __ cmp(Rinterface, Rtemp); | |
| 3212 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
| 3213 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
| 3214 | |
| 3215 // entry found and Rscratch points to it | |
| 3216 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
| 3217 | |
| 3218 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
| 3219 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
| 3220 __ add(Rscratch, Rindex, Rscratch); | |
|
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3221 __ ld_ptr(O2_Klass, Rscratch, G5_method); |
| 0 | 3222 |
| 3223 // Check for abstract method error. | |
| 3224 { | |
| 3225 Label ok; | |
| 3839 | 3226 __ br_notnull_short(G5_method, Assembler::pt, ok); |
| 0 | 3227 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
| 3228 __ should_not_reach_here(); | |
| 3229 __ bind(ok); | |
| 3230 } | |
| 3231 | |
| 3232 Register Rcall = Rinterface; | |
| 3233 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
| 3234 | |
| 3235 __ call_from_interpreter(Rcall, Gargs, Rret); | |
|
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|
3236 } |
|
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3237 |
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|
3238 void TemplateTable::invokehandle(int byte_no) { |
|
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3239 transition(vtos, vtos); |
|
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3240 assert(byte_no == f1_byte, "use this argument"); |
|
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|
3241 |
|
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|
3242 if (!EnableInvokeDynamic) { |
|
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|
3243 // rewriter does not generate this bytecode |
|
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|
3244 __ should_not_reach_here(); |
|
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|
3245 return; |
|
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|
3246 } |
|
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|
3247 |
|
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|
3248 const Register Rret = Lscratch; |
|
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|
3249 const Register G4_mtype = G4_scratch; |
|
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|
3250 const Register O0_recv = O0; |
|
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|
3251 const Register Rscratch = G3_scratch; |
|
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|
3252 |
|
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|
3253 prepare_invoke(byte_no, G5_method, Rret, G4_mtype, O0_recv); |
|
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|
3254 __ null_check(O0_recv); |
|
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|
3255 |
|
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|
3256 // G4: MethodType object (from cpool->resolved_references[f1], if necessary) |
|
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|
3257 // G5: MH.invokeExact_MT method (from f2) |
|
6266
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|
3258 |
|
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|
3259 // Note: G4_mtype is already pushed (if necessary) by prepare_invoke |
|
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|
3260 |
|
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|
3261 // do the call |
|
6725
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|
3262 __ verify_oop(G4_mtype); |
|
6266
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|
3263 __ profile_final_call(O4); // FIXME: profile the LambdaForm also |
|
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|
3264 __ call_from_interpreter(Rscratch, Gargs, Rret); |
| 0 | 3265 } |
| 3266 | |
| 3267 | |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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diff
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|
3268 void TemplateTable::invokedynamic(int byte_no) { |
|
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|
3269 transition(vtos, vtos); |
|
6725
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|
3270 assert(byte_no == f1_byte, "use this argument"); |
|
726
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|
3271 |
|
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6655646: dynamic languages need dynamically linked call sites
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|
3272 if (!EnableInvokeDynamic) { |
|
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|
3273 // We should not encounter this bytecode if !EnableInvokeDynamic. |
|
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6655646: dynamic languages need dynamically linked call sites
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|
3274 // The verifier will stop it. However, if we get past the verifier, |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
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|
3275 // this will stop the thread in a reasonable way, without crashing the JVM. |
|
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|
3276 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
|
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|
3277 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
|
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|
3278 // the call_VM checks for exception, so we should never return here. |
|
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|
3279 __ should_not_reach_here(); |
|
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|
3280 return; |
|
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|
3281 } |
|
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|
3282 |
|
6266
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|
3283 const Register Rret = Lscratch; |
|
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|
3284 const Register G4_callsite = G4_scratch; |
|
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|
3285 const Register Rscratch = G3_scratch; |
|
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|
3286 |
|
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|
3287 prepare_invoke(byte_no, G5_method, Rret, G4_callsite); |
|
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|
3288 |
|
6822
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|
3289 // G4: CallSite object (from cpool->resolved_references[f1]) |
|
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|
3290 // G5: MH.linkToCallSite method (from f2) |
|
6266
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|
3291 |
|
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|
3292 // Note: G4_callsite is already pushed by prepare_invoke |
|
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|
3293 |
|
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|
3294 // %%% should make a type profile for any invokedynamic that takes a ref argument |
| 1503 | 3295 // profile this call |
| 3296 __ profile_call(O4); | |
| 3297 | |
|
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|
3298 // do the call |
|
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|
3299 __ verify_oop(G4_callsite); |
|
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|
3300 __ call_from_interpreter(Rscratch, Gargs, Rret); |
|
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|
3301 } |
|
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|
3302 |
|
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|
3303 |
| 0 | 3304 //---------------------------------------------------------------------------------------------------- |
| 3305 // Allocation | |
| 3306 | |
| 3307 void TemplateTable::_new() { | |
| 3308 transition(vtos, atos); | |
| 3309 | |
| 3310 Label slow_case; | |
| 3311 Label done; | |
| 3312 Label initialize_header; | |
| 3313 Label initialize_object; // including clearing the fields | |
| 3314 | |
| 3315 Register RallocatedObject = Otos_i; | |
| 3316 Register RinstanceKlass = O1; | |
| 3317 Register Roffset = O3; | |
| 3318 Register Rscratch = O4; | |
| 3319 | |
| 3320 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3321 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
| 3322 // make sure the class we're about to instantiate has been resolved | |
|
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|
3323 // This is done before loading InstanceKlass to be consistent with the order |
|
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|
3324 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
|
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|
3325 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3326 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3327 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3328 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
| 3329 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
|
6725
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|
3330 // get InstanceKlass |
| 0 | 3331 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
|
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|
3332 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3333 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); |
| 3334 | |
| 3335 // make sure klass is fully initialized: | |
|
6725
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|
3336 __ ldub(RinstanceKlass, in_bytes(InstanceKlass::init_state_offset()), G3_scratch); |
|
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|
3337 __ cmp(G3_scratch, InstanceKlass::fully_initialized); |
| 0 | 3338 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); |
|
4762
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stefank
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3892
diff
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|
3339 __ delayed()->ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3340 |
|
6725
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|
3341 // get instance_size in InstanceKlass (already aligned) |
|
4762
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diff
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|
3342 //__ ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
| 0 | 3343 |
| 3344 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
| 3345 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
| 3346 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
| 3347 __ delayed()->nop(); | |
| 3348 | |
| 3349 // allocate the instance | |
| 3350 // 1) Try to allocate in the TLAB | |
| 3351 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
| 3352 // 3) if the above fails (or is not applicable), go to a slow case | |
| 3353 // (creates a new TLAB, etc.) | |
| 3354 | |
| 3355 const bool allow_shared_alloc = | |
| 3356 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
| 3357 | |
| 3358 if(UseTLAB) { | |
| 3359 Register RoldTopValue = RallocatedObject; | |
| 3892 | 3360 Register RtlabWasteLimitValue = G3_scratch; |
| 0 | 3361 Register RnewTopValue = G1_scratch; |
| 3362 Register RendValue = Rscratch; | |
| 3363 Register RfreeValue = RnewTopValue; | |
| 3364 | |
| 3365 // check if we can allocate in the TLAB | |
| 3366 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
| 3367 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
| 3368 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3369 | |
| 3370 // if there is enough space, we do not CAS and do not clear | |
| 3371 __ cmp(RnewTopValue, RendValue); | |
| 3372 if(ZeroTLAB) { | |
| 3373 // the fields have already been cleared | |
| 3374 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
| 3375 } else { | |
| 3376 // initialize both the header and fields | |
| 3377 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
| 3378 } | |
| 3379 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
| 3380 | |
| 3381 if (allow_shared_alloc) { | |
|
2100
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diff
changeset
|
3382 // Check if tlab should be discarded (refill_waste_limit >= free) |
|
b1a2afa37ec4
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diff
changeset
|
3383 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); |
|
b1a2afa37ec4
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diff
changeset
|
3384 __ sub(RendValue, RoldTopValue, RfreeValue); |
| 0 | 3385 #ifdef _LP64 |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3386 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3387 #else |
|
2100
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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1972
diff
changeset
|
3388 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
| 0 | 3389 #endif |
| 3839 | 3390 __ cmp_and_brx_short(RtlabWasteLimitValue, RfreeValue, Assembler::greaterEqualUnsigned, Assembler::pt, slow_case); // tlab waste is small |
|
2100
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7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3391 |
|
b1a2afa37ec4
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diff
changeset
|
3392 // increment waste limit to prevent getting stuck on this slow path |
|
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diff
changeset
|
3393 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
|
b1a2afa37ec4
7003271: Hotspot should track cumulative Java heap bytes allocated on a per-thread basis
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diff
changeset
|
3394 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
| 0 | 3395 } else { |
| 3396 // No allocation in the shared eden. | |
| 3839 | 3397 __ ba_short(slow_case); |
| 0 | 3398 } |
| 3399 } | |
| 3400 | |
| 3401 // Allocation in the shared Eden | |
| 3402 if (allow_shared_alloc) { | |
| 3403 Register RoldTopValue = G1_scratch; | |
| 3404 Register RtopAddr = G3_scratch; | |
| 3405 Register RnewTopValue = RallocatedObject; | |
| 3406 Register RendValue = Rscratch; | |
| 3407 | |
| 3408 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
| 3409 | |
| 3410 Label retry; | |
| 3411 __ bind(retry); | |
| 3412 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
| 3413 __ ld_ptr(RendValue, 0, RendValue); | |
| 3414 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
| 3415 __ add(RoldTopValue, Roffset, RnewTopValue); | |
| 3416 | |
| 3417 // RnewTopValue contains the top address after the new object | |
| 3418 // has been allocated. | |
| 3839 | 3419 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
| 0 | 3420 |
| 3421 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
| 3422 VM_Version::v9_instructions_work() ? NULL : | |
| 3423 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
| 3424 | |
| 3425 // if someone beat us on the allocation, try again, otherwise continue | |
| 3839 | 3426 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
|
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|
3427 |
|
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diff
changeset
|
3428 // bump total bytes allocated by this thread |
|
2127
5577848f5923
7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument
phh
parents:
2100
diff
changeset
|
3429 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
|
5577848f5923
7011463: Sparc MacroAssembler::incr_allocated_bytes() needs a RegisterOrConstant argument
phh
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2100
diff
changeset
|
3430 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
| 0 | 3431 } |
| 3432 | |
| 3433 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
| 3434 // clear object fields | |
| 3435 __ bind(initialize_object); | |
| 3436 __ deccc(Roffset, sizeof(oopDesc)); | |
| 3437 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
| 3438 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
| 3439 | |
| 3440 // initialize remaining object fields | |
| 3892 | 3441 if (UseBlockZeroing) { |
| 3442 // Use BIS for zeroing | |
| 3443 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
| 3444 } else { | |
| 3445 Label loop; | |
| 0 | 3446 __ subcc(Roffset, wordSize, Roffset); |
| 3447 __ bind(loop); | |
| 3448 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
| 3449 __ st_ptr(G0, G3_scratch, Roffset); | |
| 3450 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
| 3451 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
| 3452 } | |
| 3839 | 3453 __ ba_short(initialize_header); |
| 0 | 3454 } |
| 3455 | |
| 3456 // slow case | |
| 3457 __ bind(slow_case); | |
| 3458 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3459 __ get_constant_pool(O1); | |
| 3460 | |
| 3461 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
| 3462 | |
| 3839 | 3463 __ ba_short(done); |
| 0 | 3464 |
| 3465 // Initialize the header: mark, klass | |
| 3466 __ bind(initialize_header); | |
| 3467 | |
| 3468 if (UseBiasedLocking) { | |
|
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diff
changeset
|
3469 __ ld_ptr(RinstanceKlass, in_bytes(Klass::prototype_header_offset()), G4_scratch); |
| 0 | 3470 } else { |
| 3471 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
| 3472 } | |
| 3473 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
|
167
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6696264: assert("narrow oop can never be zero") for GCBasher & ParNewGC
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3474 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
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3475 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
| 0 | 3476 |
| 3477 { | |
| 3478 SkipIfEqual skip_if( | |
| 3479 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
| 3480 // Trigger dtrace event | |
| 3481 __ push(atos); | |
| 3482 __ call_VM_leaf(noreg, | |
| 3483 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
| 3484 __ pop(atos); | |
| 3485 } | |
| 3486 | |
| 3487 // continue | |
| 3488 __ bind(done); | |
| 3489 } | |
| 3490 | |
| 3491 | |
| 3492 | |
| 3493 void TemplateTable::newarray() { | |
| 3494 transition(itos, atos); | |
| 3495 __ ldub(Lbcp, 1, O1); | |
| 3496 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
| 3497 } | |
| 3498 | |
| 3499 | |
| 3500 void TemplateTable::anewarray() { | |
| 3501 transition(itos, atos); | |
| 3502 __ get_constant_pool(O1); | |
| 3503 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
| 3504 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
| 3505 } | |
| 3506 | |
| 3507 | |
| 3508 void TemplateTable::arraylength() { | |
| 3509 transition(atos, itos); | |
| 3510 Label ok; | |
| 3511 __ verify_oop(Otos_i); | |
| 3512 __ tst(Otos_i); | |
| 3513 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
| 3514 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
| 3515 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3516 } | |
| 3517 | |
| 3518 | |
| 3519 void TemplateTable::checkcast() { | |
| 3520 transition(atos, atos); | |
| 3521 Label done, is_null, quicked, cast_ok, resolved; | |
| 3522 Register Roffset = G1_scratch; | |
| 3523 Register RobjKlass = O5; | |
| 3524 Register RspecifiedKlass = O4; | |
| 3525 | |
| 3526 // Check for casting a NULL | |
| 3839 | 3527 __ br_null_short(Otos_i, Assembler::pn, is_null); |
| 0 | 3528 |
| 3529 // Get value klass in RobjKlass | |
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3530 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3531 |
| 3532 // Get constant pool tag | |
| 3533 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3534 | |
| 3535 // See if the checkcast has been quickened | |
| 3536 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3537 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3538 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3539 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3540 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3541 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3542 | |
| 3543 __ push_ptr(); // save receiver for result, and for GC | |
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3544 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3545 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3546 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3547 | |
| 3839 | 3548 __ ba_short(resolved); |
| 0 | 3549 |
| 3550 // Extract target class from constant pool | |
| 3551 __ bind(quicked); | |
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3552 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3553 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); |
| 3554 __ bind(resolved); | |
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3555 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3556 |
| 3557 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3558 // failure. Throw exception if failure. | |
| 3559 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
| 3560 | |
| 3561 // Not a subtype; so must throw exception | |
| 3562 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
| 3563 | |
| 3564 __ bind(cast_ok); | |
| 3565 | |
| 3566 if (ProfileInterpreter) { | |
| 3839 | 3567 __ ba_short(done); |
| 0 | 3568 } |
| 3569 __ bind(is_null); | |
| 3570 __ profile_null_seen(G3_scratch); | |
| 3571 __ bind(done); | |
| 3572 } | |
| 3573 | |
| 3574 | |
| 3575 void TemplateTable::instanceof() { | |
| 3576 Label done, is_null, quicked, resolved; | |
| 3577 transition(atos, itos); | |
| 3578 Register Roffset = G1_scratch; | |
| 3579 Register RobjKlass = O5; | |
| 3580 Register RspecifiedKlass = O4; | |
| 3581 | |
| 3582 // Check for casting a NULL | |
| 3839 | 3583 __ br_null_short(Otos_i, Assembler::pt, is_null); |
| 0 | 3584 |
| 3585 // Get value klass in RobjKlass | |
|
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3586 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3587 |
| 3588 // Get constant pool tag | |
| 3589 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
| 3590 | |
| 3591 // See if the checkcast has been quickened | |
| 3592 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3593 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
| 0 | 3594 __ ldub(G3_scratch, Roffset, G3_scratch); |
| 3595 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
| 3596 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
| 3597 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
| 3598 | |
| 3599 __ push_ptr(); // save receiver for result, and for GC | |
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3600 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3601 __ get_vm_result_2(RspecifiedKlass); |
| 0 | 3602 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
| 3603 | |
| 3839 | 3604 __ ba_short(resolved); |
| 0 | 3605 |
| 3606 // Extract target class from constant pool | |
| 3607 __ bind(quicked); | |
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3608 __ add(Roffset, sizeof(ConstantPool), Roffset); |
| 0 | 3609 __ get_constant_pool(Lscratch); |
| 3610 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
| 3611 __ bind(resolved); | |
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3612 __ load_klass(Otos_i, RobjKlass); // get value klass |
| 0 | 3613 |
| 3614 // Generate a fast subtype check. Branch to cast_ok if no | |
| 3615 // failure. Return 0 if failure. | |
| 3616 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
| 3617 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
| 3618 // Not a subtype; return 0; | |
| 3619 __ clr( Otos_i ); | |
| 3620 | |
| 3621 if (ProfileInterpreter) { | |
| 3839 | 3622 __ ba_short(done); |
| 0 | 3623 } |
| 3624 __ bind(is_null); | |
| 3625 __ profile_null_seen(G3_scratch); | |
| 3626 __ bind(done); | |
| 3627 } | |
| 3628 | |
| 3629 void TemplateTable::_breakpoint() { | |
| 3630 | |
| 3631 // Note: We get here even if we are single stepping.. | |
| 3632 // jbug inists on setting breakpoints at every bytecode | |
| 3633 // even if we are in single step mode. | |
| 3634 | |
| 3635 transition(vtos, vtos); | |
| 3636 // get the unpatched byte code | |
| 3637 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
| 3638 __ mov(O0, Lbyte_code); | |
| 3639 | |
| 3640 // post the breakpoint event | |
| 3641 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
| 3642 | |
| 3643 // complete the execution of original bytecode | |
| 3644 __ dispatch_normal(vtos); | |
| 3645 } | |
| 3646 | |
| 3647 | |
| 3648 //---------------------------------------------------------------------------------------------------- | |
| 3649 // Exceptions | |
| 3650 | |
| 3651 void TemplateTable::athrow() { | |
| 3652 transition(atos, vtos); | |
| 3653 | |
| 3654 // This works because exception is cached in Otos_i which is same as O0, | |
| 3655 // which is same as what throw_exception_entry_expects | |
| 3656 assert(Otos_i == Oexception, "see explanation above"); | |
| 3657 | |
| 3658 __ verify_oop(Otos_i); | |
| 3659 __ null_check(Otos_i); | |
| 3660 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
| 3661 } | |
| 3662 | |
| 3663 | |
| 3664 //---------------------------------------------------------------------------------------------------- | |
| 3665 // Synchronization | |
| 3666 | |
| 3667 | |
| 3668 // See frame_sparc.hpp for monitor block layout. | |
| 3669 // Monitor elements are dynamically allocated by growing stack as needed. | |
| 3670 | |
| 3671 void TemplateTable::monitorenter() { | |
| 3672 transition(atos, vtos); | |
| 3673 __ verify_oop(Otos_i); | |
| 3674 // Try to acquire a lock on the object | |
| 3675 // Repeat until succeeded (i.e., until | |
| 3676 // monitorenter returns true). | |
| 3677 | |
| 3678 { Label ok; | |
| 3679 __ tst(Otos_i); | |
| 3680 __ throw_if_not_1_x( Assembler::notZero, ok); | |
| 3681 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
| 3682 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
| 3683 } | |
| 3684 | |
| 3685 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
| 3686 | |
| 3687 // find a free slot in the monitor block | |
| 3688 | |
| 3689 | |
| 3690 // initialize entry pointer | |
| 3691 __ clr(O1); // points to free slot or NULL | |
| 3692 | |
| 3693 { | |
| 3694 Label entry, loop, exit; | |
| 3695 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3696 __ ba( entry ); |
| 0 | 3697 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
| 3698 | |
| 3699 | |
| 3700 __ bind( loop ); | |
| 3701 | |
| 3702 __ verify_oop(O4); // verify each monitor's oop | |
| 3703 __ tst(O4); // is this entry unused? | |
| 3704 if (VM_Version::v9_instructions_work()) | |
| 3705 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
| 3706 else { | |
| 3707 Label L; | |
| 3708 __ br( Assembler::zero, true, Assembler::pn, L ); | |
| 3709 __ delayed()->mov(O3, O1); // rememeber this one if match | |
| 3710 __ bind(L); | |
| 3711 } | |
| 3712 | |
| 3713 __ cmp(O4, O0); // check if current entry is for same object | |
| 3714 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
| 3715 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
| 3716 | |
| 3717 __ bind( entry ); | |
| 3718 | |
| 3719 __ cmp( O3, O2 ); | |
| 3720 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3721 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3722 | |
| 3723 __ bind( exit ); | |
| 3724 } | |
| 3725 | |
| 3726 { Label allocated; | |
| 3727 | |
| 3728 // found free slot? | |
| 3839 | 3729 __ br_notnull_short(O1, Assembler::pn, allocated); |
| 0 | 3730 |
| 3731 __ add_monitor_to_stack( false, O2, O3 ); | |
| 3732 __ mov(Lmonitors, O1); | |
| 3733 | |
| 3734 __ bind(allocated); | |
| 3735 } | |
| 3736 | |
| 3737 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
| 3738 // The object has already been poped from the stack, so the expression stack looks correct. | |
| 3739 __ inc(Lbcp); | |
| 3740 | |
| 3741 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
| 3742 __ lock_object(O1, O0); | |
| 3743 | |
| 3744 // check if there's enough space on the stack for the monitors after locking | |
| 3745 __ generate_stack_overflow_check(0); | |
| 3746 | |
| 3747 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
| 3748 __ dispatch_next(vtos); | |
| 3749 } | |
| 3750 | |
| 3751 | |
| 3752 void TemplateTable::monitorexit() { | |
| 3753 transition(atos, vtos); | |
| 3754 __ verify_oop(Otos_i); | |
| 3755 __ tst(Otos_i); | |
| 3756 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
| 3757 | |
| 3758 assert(O0 == Otos_i, "just checking"); | |
| 3759 | |
| 3760 { Label entry, loop, found; | |
| 3761 __ add( __ top_most_monitor(), O2 ); // last one to check | |
| 3839 | 3762 __ ba(entry); |
| 0 | 3763 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
| 3764 // By using a local it survives the call to the C routine. | |
| 3765 __ delayed()->mov( Lmonitors, Lscratch ); | |
| 3766 | |
| 3767 __ bind( loop ); | |
| 3768 | |
| 3769 __ verify_oop(O4); // verify each monitor's oop | |
| 3770 __ cmp(O4, O0); // check if current entry is for desired object | |
| 3771 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
| 3772 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
| 3773 | |
| 3774 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
| 3775 | |
| 3776 __ bind( entry ); | |
| 3777 | |
| 3778 __ cmp( Lscratch, O2 ); | |
| 3779 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
| 3780 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
| 3781 | |
| 3782 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
| 3783 __ should_not_reach_here(); | |
| 3784 | |
| 3785 __ bind(found); | |
| 3786 } | |
| 3787 __ unlock_object(O1); | |
| 3788 } | |
| 3789 | |
| 3790 | |
| 3791 //---------------------------------------------------------------------------------------------------- | |
| 3792 // Wide instructions | |
| 3793 | |
| 3794 void TemplateTable::wide() { | |
| 3795 transition(vtos, vtos); | |
| 3796 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
| 3797 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
| 727 | 3798 AddressLiteral ep(Interpreter::_wentry_point); |
| 3799 __ set(ep, G4_scratch); | |
| 3800 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
| 0 | 3801 __ jmp(G3_scratch, G0); |
| 3802 __ delayed()->nop(); | |
| 3803 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
| 3804 } | |
| 3805 | |
| 3806 | |
| 3807 //---------------------------------------------------------------------------------------------------- | |
| 3808 // Multi arrays | |
| 3809 | |
| 3810 void TemplateTable::multianewarray() { | |
| 3811 transition(vtos, atos); | |
| 3812 // put ndims * wordSize into Lscratch | |
| 3813 __ ldub( Lbcp, 3, Lscratch); | |
| 1506 | 3814 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
| 0 | 3815 // Lesp points past last_dim, so set to O1 to first_dim address |
| 3816 __ add( Lesp, Lscratch, O1); | |
| 3817 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
| 3818 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
| 3819 } | |
| 3820 #endif /* !CC_INTERP */ |