Mercurial > hg > truffle
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 7274:19f5c9b96fa7
Merge.
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 18 Dec 2012 17:59:32 +0100 |
parents | 6e5a59a8e4a7 |
children | fd74228fd5ca |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "interpreter/interpreterRuntime.hpp" | |
28 #include "interpreter/templateTable.hpp" | |
29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
1972 | 31 #include "oops/objArrayKlass.hpp" |
32 #include "oops/oop.inline.hpp" | |
33 #include "prims/methodHandles.hpp" | |
34 #include "runtime/sharedRuntime.hpp" | |
35 #include "runtime/stubRoutines.hpp" | |
36 #include "runtime/synchronizer.hpp" | |
0 | 37 |
38 #ifndef CC_INTERP | |
39 #define __ _masm-> | |
40 | |
342
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41 // Misc helpers |
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42 |
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43 // Do an oop store like *(base + index + offset) = val |
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44 // index can be noreg, |
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45 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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46 Register base, |
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47 Register index, |
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48 int offset, |
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49 Register val, |
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50 Register tmp, |
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51 BarrierSet::Name barrier, |
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52 bool precise) { |
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53 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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54 assert(index == noreg || offset == 0, "only one offset"); |
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55 switch (barrier) { |
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56 #ifndef SERIALGC |
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57 case BarrierSet::G1SATBCT: |
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58 case BarrierSet::G1SATBCTLogging: |
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59 { |
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60 // Load and record the previous value. |
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61 __ g1_write_barrier_pre(base, index, offset, |
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62 noreg /* pre_val */, |
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63 tmp, true /*preserve_o_regs*/); |
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64 |
342
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65 if (index == noreg ) { |
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66 assert(Assembler::is_simm13(offset), "fix this code"); |
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67 __ store_heap_oop(val, base, offset); |
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68 } else { |
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69 __ store_heap_oop(val, base, index); |
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70 } |
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71 |
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72 // No need for post barrier if storing NULL |
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73 if (val != G0) { |
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74 if (precise) { |
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75 if (index == noreg) { |
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76 __ add(base, offset, base); |
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77 } else { |
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78 __ add(base, index, base); |
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79 } |
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80 } |
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81 __ g1_write_barrier_post(base, val, tmp); |
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82 } |
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83 } |
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84 break; |
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85 #endif // SERIALGC |
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86 case BarrierSet::CardTableModRef: |
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87 case BarrierSet::CardTableExtension: |
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88 { |
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89 if (index == noreg ) { |
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90 assert(Assembler::is_simm13(offset), "fix this code"); |
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91 __ store_heap_oop(val, base, offset); |
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92 } else { |
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93 __ store_heap_oop(val, base, index); |
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94 } |
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95 // No need for post barrier if storing NULL |
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96 if (val != G0) { |
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97 if (precise) { |
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98 if (index == noreg) { |
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99 __ add(base, offset, base); |
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100 } else { |
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101 __ add(base, index, base); |
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102 } |
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103 } |
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104 __ card_write_barrier_post(base, val, tmp); |
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105 } |
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106 } |
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107 break; |
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108 case BarrierSet::ModRef: |
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109 case BarrierSet::Other: |
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110 ShouldNotReachHere(); |
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111 break; |
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112 default : |
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113 ShouldNotReachHere(); |
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114 |
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115 } |
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116 } |
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117 |
0 | 118 |
119 //---------------------------------------------------------------------------------------------------- | |
120 // Platform-dependent initialization | |
121 | |
122 void TemplateTable::pd_initialize() { | |
123 // (none) | |
124 } | |
125 | |
126 | |
127 //---------------------------------------------------------------------------------------------------- | |
128 // Condition conversion | |
129 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
130 switch (cc) { | |
131 case TemplateTable::equal : return Assembler::notEqual; | |
132 case TemplateTable::not_equal : return Assembler::equal; | |
133 case TemplateTable::less : return Assembler::greaterEqual; | |
134 case TemplateTable::less_equal : return Assembler::greater; | |
135 case TemplateTable::greater : return Assembler::lessEqual; | |
136 case TemplateTable::greater_equal: return Assembler::less; | |
137 } | |
138 ShouldNotReachHere(); | |
139 return Assembler::zero; | |
140 } | |
141 | |
142 //---------------------------------------------------------------------------------------------------- | |
143 // Miscelaneous helper routines | |
144 | |
145 | |
146 Address TemplateTable::at_bcp(int offset) { | |
147 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
727 | 148 return Address(Lbcp, offset); |
0 | 149 } |
150 | |
151 | |
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152 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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153 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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154 int byte_no) { |
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155 // With sharing on, may need to test Method* flag. |
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156 if (!RewriteBytecodes) return; |
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157 Label L_patch_done; |
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158 |
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159 switch (bc) { |
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160 case Bytecodes::_fast_aputfield: |
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161 case Bytecodes::_fast_bputfield: |
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162 case Bytecodes::_fast_cputfield: |
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163 case Bytecodes::_fast_dputfield: |
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164 case Bytecodes::_fast_fputfield: |
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165 case Bytecodes::_fast_iputfield: |
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166 case Bytecodes::_fast_lputfield: |
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167 case Bytecodes::_fast_sputfield: |
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168 { |
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169 // We skip bytecode quickening for putfield instructions when |
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170 // the put_code written to the constant pool cache is zero. |
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171 // This is required so that every execution of this instruction |
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172 // calls out to InterpreterRuntime::resolve_get_put to do |
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173 // additional, required work. |
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174 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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175 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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176 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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177 __ set(bc, bc_reg); |
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178 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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179 } |
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180 break; |
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181 default: |
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182 assert(byte_no == -1, "sanity"); |
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183 if (load_bc_into_bc_reg) { |
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184 __ set(bc, bc_reg); |
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185 } |
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186 } |
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187 |
0 | 188 if (JvmtiExport::can_post_breakpoint()) { |
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189 Label L_fast_patch; |
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190 __ ldub(at_bcp(0), temp_reg); |
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191 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
0 | 192 // perform the quickening, slowly, in the bowels of the breakpoint table |
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193 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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194 __ ba_short(L_patch_done); |
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195 __ bind(L_fast_patch); |
0 | 196 } |
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197 |
0 | 198 #ifdef ASSERT |
199 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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200 Label L_okay; |
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201 __ ldub(at_bcp(0), temp_reg); |
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202 __ cmp(temp_reg, orig_bytecode); |
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203 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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204 __ delayed()->cmp(temp_reg, bc_reg); |
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205 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
0 | 206 __ delayed()->nop(); |
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207 __ stop("patching the wrong bytecode"); |
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208 __ bind(L_okay); |
0 | 209 #endif |
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210 |
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211 // patch bytecode |
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212 __ stb(bc_reg, at_bcp(0)); |
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213 __ bind(L_patch_done); |
0 | 214 } |
215 | |
216 //---------------------------------------------------------------------------------------------------- | |
217 // Individual instructions | |
218 | |
219 void TemplateTable::nop() { | |
220 transition(vtos, vtos); | |
221 // nothing to do | |
222 } | |
223 | |
224 void TemplateTable::shouldnotreachhere() { | |
225 transition(vtos, vtos); | |
226 __ stop("shouldnotreachhere bytecode"); | |
227 } | |
228 | |
229 void TemplateTable::aconst_null() { | |
230 transition(vtos, atos); | |
231 __ clr(Otos_i); | |
232 } | |
233 | |
234 | |
235 void TemplateTable::iconst(int value) { | |
236 transition(vtos, itos); | |
237 __ set(value, Otos_i); | |
238 } | |
239 | |
240 | |
241 void TemplateTable::lconst(int value) { | |
242 transition(vtos, ltos); | |
243 assert(value >= 0, "check this code"); | |
244 #ifdef _LP64 | |
245 __ set(value, Otos_l); | |
246 #else | |
247 __ set(value, Otos_l2); | |
248 __ clr( Otos_l1); | |
249 #endif | |
250 } | |
251 | |
252 | |
253 void TemplateTable::fconst(int value) { | |
254 transition(vtos, ftos); | |
255 static float zero = 0.0, one = 1.0, two = 2.0; | |
256 float* p; | |
257 switch( value ) { | |
258 default: ShouldNotReachHere(); | |
259 case 0: p = &zero; break; | |
260 case 1: p = &one; break; | |
261 case 2: p = &two; break; | |
262 } | |
727 | 263 AddressLiteral a(p); |
264 __ sethi(a, G3_scratch); | |
265 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
0 | 266 } |
267 | |
268 | |
269 void TemplateTable::dconst(int value) { | |
270 transition(vtos, dtos); | |
271 static double zero = 0.0, one = 1.0; | |
272 double* p; | |
273 switch( value ) { | |
274 default: ShouldNotReachHere(); | |
275 case 0: p = &zero; break; | |
276 case 1: p = &one; break; | |
277 } | |
727 | 278 AddressLiteral a(p); |
279 __ sethi(a, G3_scratch); | |
280 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
0 | 281 } |
282 | |
283 | |
284 // %%%%% Should factore most snippet templates across platforms | |
285 | |
286 void TemplateTable::bipush() { | |
287 transition(vtos, itos); | |
288 __ ldsb( at_bcp(1), Otos_i ); | |
289 } | |
290 | |
291 void TemplateTable::sipush() { | |
292 transition(vtos, itos); | |
293 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
294 } | |
295 | |
296 void TemplateTable::ldc(bool wide) { | |
297 transition(vtos, vtos); | |
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298 Label call_ldc, notInt, isString, notString, notClass, exit; |
0 | 299 |
300 if (wide) { | |
301 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
302 } else { | |
303 __ ldub(Lbcp, 1, O1); | |
304 } | |
305 __ get_cpool_and_tags(O0, O2); | |
306 | |
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307 const int base_offset = ConstantPool::header_size() * wordSize; |
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308 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 309 |
310 // get type from tags | |
311 __ add(O2, tags_offset, O2); | |
312 __ ldub(O2, O1, O2); | |
3839 | 313 |
314 // unresolved class? If so, must resolve | |
315 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
316 | |
317 // unresolved class in error state | |
318 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
0 | 319 |
320 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
321 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
322 __ delayed()->add(O0, base_offset, O0); | |
323 | |
324 __ bind(call_ldc); | |
325 __ set(wide, O1); | |
326 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
327 __ push(atos); | |
3839 | 328 __ ba_short(exit); |
0 | 329 |
330 __ bind(notClass); | |
331 // __ add(O0, base_offset, O0); | |
332 __ sll(O1, LogBytesPerWord, O1); | |
333 __ cmp(O2, JVM_CONSTANT_Integer); | |
334 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
335 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
336 __ ld(O0, O1, Otos_i); | |
337 __ push(itos); | |
3839 | 338 __ ba_short(exit); |
0 | 339 |
340 __ bind(notInt); | |
341 // __ cmp(O2, JVM_CONSTANT_String); | |
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342 __ brx(Assembler::equal, true, Assembler::pt, isString); |
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343 __ delayed()->cmp(O2, JVM_CONSTANT_Object); |
0 | 344 __ brx(Assembler::notEqual, true, Assembler::pt, notString); |
345 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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346 __ bind(isString); |
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347 __ stop("string should be rewritten to fast_aldc"); |
3839 | 348 __ ba_short(exit); |
0 | 349 |
350 __ bind(notString); | |
351 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
352 __ push(ftos); | |
353 | |
354 __ bind(exit); | |
355 } | |
356 | |
1602 | 357 // Fast path for caching oop constants. |
358 // %%% We should use this to handle Class and String constants also. | |
359 // %%% It will simplify the ldc/primitive path considerably. | |
360 void TemplateTable::fast_aldc(bool wide) { | |
361 transition(vtos, atos); | |
362 | |
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363 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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364 Label resolved; |
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365 |
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366 // We are resolved if the resolved reference cache entry contains a |
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367 // non-null object (CallSite, etc.) |
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368 assert_different_registers(Otos_i, G3_scratch); |
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369 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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370 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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371 __ tst(Otos_i); |
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372 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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373 __ delayed()->set((int)bytecode(), O1); |
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374 |
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375 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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376 |
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377 // first time invocation - must resolve first |
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378 __ call_VM(Otos_i, entry, O1); |
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379 __ bind(resolved); |
1602 | 380 __ verify_oop(Otos_i); |
381 } | |
382 | |
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383 |
0 | 384 void TemplateTable::ldc2_w() { |
385 transition(vtos, vtos); | |
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386 Label Long, exit; |
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387 |
0 | 388 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
389 __ get_cpool_and_tags(O0, O2); | |
390 | |
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391 const int base_offset = ConstantPool::header_size() * wordSize; |
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392 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 393 // get type from tags |
394 __ add(O2, tags_offset, O2); | |
395 __ ldub(O2, O1, O2); | |
396 | |
397 __ sll(O1, LogBytesPerWord, O1); | |
398 __ add(O0, O1, G3_scratch); | |
399 | |
3839 | 400 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
0 | 401 // A double can be placed at word-aligned locations in the constant pool. |
402 // Check out Conversions.java for an example. | |
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403 // Also ConstantPool::header_size() is 20, which makes it very difficult |
0 | 404 // to double-align double on the constant pool. SG, 11/7/97 |
405 #ifdef _LP64 | |
406 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
407 #else | |
408 FloatRegister f = Ftos_d; | |
409 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
410 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
411 f->successor()); | |
412 #endif | |
413 __ push(dtos); | |
3839 | 414 __ ba_short(exit); |
0 | 415 |
416 __ bind(Long); | |
417 #ifdef _LP64 | |
418 __ ldx(G3_scratch, base_offset, Otos_l); | |
419 #else | |
420 __ ld(G3_scratch, base_offset, Otos_l); | |
421 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
422 #endif | |
423 __ push(ltos); | |
424 | |
425 __ bind(exit); | |
426 } | |
427 | |
428 | |
429 void TemplateTable::locals_index(Register reg, int offset) { | |
430 __ ldub( at_bcp(offset), reg ); | |
431 } | |
432 | |
433 | |
434 void TemplateTable::locals_index_wide(Register reg) { | |
435 // offset is 2, not 1, because Lbcp points to wide prefix code | |
436 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
437 } | |
438 | |
439 void TemplateTable::iload() { | |
440 transition(vtos, itos); | |
441 // Rewrite iload,iload pair into fast_iload2 | |
442 // iload,caload pair into fast_icaload | |
443 if (RewriteFrequentPairs) { | |
444 Label rewrite, done; | |
445 | |
446 // get next byte | |
447 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
448 | |
449 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
450 // last two iloads in a pair. Comparing against fast_iload means that | |
451 // the next bytecode is neither an iload or a caload, and therefore | |
452 // an iload pair. | |
3839 | 453 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
0 | 454 |
455 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
456 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
457 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
458 | |
459 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
460 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
461 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
462 | |
463 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
464 // rewrite | |
465 // G4_scratch: fast bytecode | |
466 __ bind(rewrite); | |
467 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
468 __ bind(done); | |
469 } | |
470 | |
471 // Get the local value into tos | |
472 locals_index(G3_scratch); | |
473 __ access_local_int( G3_scratch, Otos_i ); | |
474 } | |
475 | |
476 void TemplateTable::fast_iload2() { | |
477 transition(vtos, itos); | |
478 locals_index(G3_scratch); | |
479 __ access_local_int( G3_scratch, Otos_i ); | |
480 __ push_i(); | |
481 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
482 __ access_local_int( G3_scratch, Otos_i ); | |
483 } | |
484 | |
485 void TemplateTable::fast_iload() { | |
486 transition(vtos, itos); | |
487 locals_index(G3_scratch); | |
488 __ access_local_int( G3_scratch, Otos_i ); | |
489 } | |
490 | |
491 void TemplateTable::lload() { | |
492 transition(vtos, ltos); | |
493 locals_index(G3_scratch); | |
494 __ access_local_long( G3_scratch, Otos_l ); | |
495 } | |
496 | |
497 | |
498 void TemplateTable::fload() { | |
499 transition(vtos, ftos); | |
500 locals_index(G3_scratch); | |
501 __ access_local_float( G3_scratch, Ftos_f ); | |
502 } | |
503 | |
504 | |
505 void TemplateTable::dload() { | |
506 transition(vtos, dtos); | |
507 locals_index(G3_scratch); | |
508 __ access_local_double( G3_scratch, Ftos_d ); | |
509 } | |
510 | |
511 | |
512 void TemplateTable::aload() { | |
513 transition(vtos, atos); | |
514 locals_index(G3_scratch); | |
515 __ access_local_ptr( G3_scratch, Otos_i); | |
516 } | |
517 | |
518 | |
519 void TemplateTable::wide_iload() { | |
520 transition(vtos, itos); | |
521 locals_index_wide(G3_scratch); | |
522 __ access_local_int( G3_scratch, Otos_i ); | |
523 } | |
524 | |
525 | |
526 void TemplateTable::wide_lload() { | |
527 transition(vtos, ltos); | |
528 locals_index_wide(G3_scratch); | |
529 __ access_local_long( G3_scratch, Otos_l ); | |
530 } | |
531 | |
532 | |
533 void TemplateTable::wide_fload() { | |
534 transition(vtos, ftos); | |
535 locals_index_wide(G3_scratch); | |
536 __ access_local_float( G3_scratch, Ftos_f ); | |
537 } | |
538 | |
539 | |
540 void TemplateTable::wide_dload() { | |
541 transition(vtos, dtos); | |
542 locals_index_wide(G3_scratch); | |
543 __ access_local_double( G3_scratch, Ftos_d ); | |
544 } | |
545 | |
546 | |
547 void TemplateTable::wide_aload() { | |
548 transition(vtos, atos); | |
549 locals_index_wide(G3_scratch); | |
550 __ access_local_ptr( G3_scratch, Otos_i ); | |
551 __ verify_oop(Otos_i); | |
552 } | |
553 | |
554 | |
555 void TemplateTable::iaload() { | |
556 transition(itos, itos); | |
557 // Otos_i: index | |
558 // tos: array | |
559 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
560 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
561 } | |
562 | |
563 | |
564 void TemplateTable::laload() { | |
565 transition(itos, ltos); | |
566 // Otos_i: index | |
567 // O2: array | |
568 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
569 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
570 } | |
571 | |
572 | |
573 void TemplateTable::faload() { | |
574 transition(itos, ftos); | |
575 // Otos_i: index | |
576 // O2: array | |
577 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
578 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
579 } | |
580 | |
581 | |
582 void TemplateTable::daload() { | |
583 transition(itos, dtos); | |
584 // Otos_i: index | |
585 // O2: array | |
586 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
587 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
588 } | |
589 | |
590 | |
591 void TemplateTable::aaload() { | |
592 transition(itos, atos); | |
593 // Otos_i: index | |
594 // tos: array | |
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595 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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596 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
0 | 597 __ verify_oop(Otos_i); |
598 } | |
599 | |
600 | |
601 void TemplateTable::baload() { | |
602 transition(itos, itos); | |
603 // Otos_i: index | |
604 // tos: array | |
605 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
606 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
607 } | |
608 | |
609 | |
610 void TemplateTable::caload() { | |
611 transition(itos, itos); | |
612 // Otos_i: index | |
613 // tos: array | |
614 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
615 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
616 } | |
617 | |
618 void TemplateTable::fast_icaload() { | |
619 transition(vtos, itos); | |
620 // Otos_i: index | |
621 // tos: array | |
622 locals_index(G3_scratch); | |
623 __ access_local_int( G3_scratch, Otos_i ); | |
624 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
625 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
626 } | |
627 | |
628 | |
629 void TemplateTable::saload() { | |
630 transition(itos, itos); | |
631 // Otos_i: index | |
632 // tos: array | |
633 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
634 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
635 } | |
636 | |
637 | |
638 void TemplateTable::iload(int n) { | |
639 transition(vtos, itos); | |
640 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
641 } | |
642 | |
643 | |
644 void TemplateTable::lload(int n) { | |
645 transition(vtos, ltos); | |
646 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
647 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
648 } | |
649 | |
650 | |
651 void TemplateTable::fload(int n) { | |
652 transition(vtos, ftos); | |
653 assert(n < Argument::n_register_parameters, "would need more code"); | |
654 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
655 } | |
656 | |
657 | |
658 void TemplateTable::dload(int n) { | |
659 transition(vtos, dtos); | |
660 FloatRegister dst = Ftos_d; | |
661 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
662 } | |
663 | |
664 | |
665 void TemplateTable::aload(int n) { | |
666 transition(vtos, atos); | |
667 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
668 } | |
669 | |
670 | |
671 void TemplateTable::aload_0() { | |
672 transition(vtos, atos); | |
673 | |
674 // According to bytecode histograms, the pairs: | |
675 // | |
676 // _aload_0, _fast_igetfield (itos) | |
677 // _aload_0, _fast_agetfield (atos) | |
678 // _aload_0, _fast_fgetfield (ftos) | |
679 // | |
680 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
681 // bytecode checks the next bytecode and then rewrites the current | |
682 // bytecode into a pair bytecode; otherwise it rewrites the current | |
683 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
684 // | |
685 if (RewriteFrequentPairs) { | |
686 Label rewrite, done; | |
687 | |
688 // get next byte | |
689 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
690 | |
691 // do actual aload_0 | |
692 aload(0); | |
693 | |
694 // if _getfield then wait with rewrite | |
3839 | 695 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
0 | 696 |
697 // if _igetfield then rewrite to _fast_iaccess_0 | |
698 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
699 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
700 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
701 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
702 | |
703 // if _agetfield then rewrite to _fast_aaccess_0 | |
704 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
705 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
706 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
707 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
708 | |
709 // if _fgetfield then rewrite to _fast_faccess_0 | |
710 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
711 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
712 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
713 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
714 | |
715 // else rewrite to _fast_aload0 | |
716 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
717 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
718 | |
719 // rewrite | |
720 // G4_scratch: fast bytecode | |
721 __ bind(rewrite); | |
722 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
723 __ bind(done); | |
724 } else { | |
725 aload(0); | |
726 } | |
727 } | |
728 | |
729 | |
730 void TemplateTable::istore() { | |
731 transition(itos, vtos); | |
732 locals_index(G3_scratch); | |
733 __ store_local_int( G3_scratch, Otos_i ); | |
734 } | |
735 | |
736 | |
737 void TemplateTable::lstore() { | |
738 transition(ltos, vtos); | |
739 locals_index(G3_scratch); | |
740 __ store_local_long( G3_scratch, Otos_l ); | |
741 } | |
742 | |
743 | |
744 void TemplateTable::fstore() { | |
745 transition(ftos, vtos); | |
746 locals_index(G3_scratch); | |
747 __ store_local_float( G3_scratch, Ftos_f ); | |
748 } | |
749 | |
750 | |
751 void TemplateTable::dstore() { | |
752 transition(dtos, vtos); | |
753 locals_index(G3_scratch); | |
754 __ store_local_double( G3_scratch, Ftos_d ); | |
755 } | |
756 | |
757 | |
758 void TemplateTable::astore() { | |
759 transition(vtos, vtos); | |
1506 | 760 __ load_ptr(0, Otos_i); |
761 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 762 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
763 locals_index(G3_scratch); | |
1506 | 764 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 765 } |
766 | |
767 | |
768 void TemplateTable::wide_istore() { | |
769 transition(vtos, vtos); | |
770 __ pop_i(); | |
771 locals_index_wide(G3_scratch); | |
772 __ store_local_int( G3_scratch, Otos_i ); | |
773 } | |
774 | |
775 | |
776 void TemplateTable::wide_lstore() { | |
777 transition(vtos, vtos); | |
778 __ pop_l(); | |
779 locals_index_wide(G3_scratch); | |
780 __ store_local_long( G3_scratch, Otos_l ); | |
781 } | |
782 | |
783 | |
784 void TemplateTable::wide_fstore() { | |
785 transition(vtos, vtos); | |
786 __ pop_f(); | |
787 locals_index_wide(G3_scratch); | |
788 __ store_local_float( G3_scratch, Ftos_f ); | |
789 } | |
790 | |
791 | |
792 void TemplateTable::wide_dstore() { | |
793 transition(vtos, vtos); | |
794 __ pop_d(); | |
795 locals_index_wide(G3_scratch); | |
796 __ store_local_double( G3_scratch, Ftos_d ); | |
797 } | |
798 | |
799 | |
800 void TemplateTable::wide_astore() { | |
801 transition(vtos, vtos); | |
1506 | 802 __ load_ptr(0, Otos_i); |
803 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 804 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
805 locals_index_wide(G3_scratch); | |
1506 | 806 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 807 } |
808 | |
809 | |
810 void TemplateTable::iastore() { | |
811 transition(itos, vtos); | |
812 __ pop_i(O2); // index | |
813 // Otos_i: val | |
814 // O3: array | |
815 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
816 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
817 } | |
818 | |
819 | |
820 void TemplateTable::lastore() { | |
821 transition(ltos, vtos); | |
822 __ pop_i(O2); // index | |
823 // Otos_l: val | |
824 // O3: array | |
825 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
826 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
827 } | |
828 | |
829 | |
830 void TemplateTable::fastore() { | |
831 transition(ftos, vtos); | |
832 __ pop_i(O2); // index | |
833 // Ftos_f: val | |
834 // O3: array | |
835 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
836 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
837 } | |
838 | |
839 | |
840 void TemplateTable::dastore() { | |
841 transition(dtos, vtos); | |
842 __ pop_i(O2); // index | |
843 // Fos_d: val | |
844 // O3: array | |
845 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
846 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
847 } | |
848 | |
849 | |
850 void TemplateTable::aastore() { | |
851 Label store_ok, is_null, done; | |
852 transition(vtos, vtos); | |
853 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
854 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
855 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
856 // Otos_i: val | |
857 // O2: index | |
858 // O3: array | |
859 __ verify_oop(Otos_i); | |
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860 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
0 | 861 |
862 // do array store check - check for NULL value first | |
3839 | 863 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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864 |
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865 __ load_klass(O3, O4); // get array klass |
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866 __ load_klass(Otos_i, O5); // get value klass |
0 | 867 |
868 // do fast instanceof cache test | |
869 | |
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870 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
0 | 871 |
872 assert(Otos_i == O0, "just checking"); | |
873 | |
874 // Otos_i: value | |
875 // O1: addr - offset | |
876 // O2: index | |
877 // O3: array | |
878 // O4: array element klass | |
879 // O5: value klass | |
880 | |
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881 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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882 |
0 | 883 // Generate a fast subtype check. Branch to store_ok if no |
884 // failure. Throw if failure. | |
885 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
886 | |
887 // Not a subtype; so must throw exception | |
888 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
889 | |
890 // Store is OK. | |
891 __ bind(store_ok); | |
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892 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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893 |
3839 | 894 __ ba(done); |
1506 | 895 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 896 |
897 __ bind(is_null); | |
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898 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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899 |
0 | 900 __ profile_null_seen(G3_scratch); |
1506 | 901 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 902 __ bind(done); |
903 } | |
904 | |
905 | |
906 void TemplateTable::bastore() { | |
907 transition(itos, vtos); | |
908 __ pop_i(O2); // index | |
909 // Otos_i: val | |
910 // O3: array | |
911 __ index_check(O3, O2, 0, G3_scratch, O2); | |
912 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
913 } | |
914 | |
915 | |
916 void TemplateTable::castore() { | |
917 transition(itos, vtos); | |
918 __ pop_i(O2); // index | |
919 // Otos_i: val | |
920 // O3: array | |
921 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
922 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
923 } | |
924 | |
925 | |
926 void TemplateTable::sastore() { | |
927 // %%%%% Factor across platform | |
928 castore(); | |
929 } | |
930 | |
931 | |
932 void TemplateTable::istore(int n) { | |
933 transition(itos, vtos); | |
934 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
935 } | |
936 | |
937 | |
938 void TemplateTable::lstore(int n) { | |
939 transition(ltos, vtos); | |
940 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
941 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
942 | |
943 } | |
944 | |
945 | |
946 void TemplateTable::fstore(int n) { | |
947 transition(ftos, vtos); | |
948 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
949 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
950 } | |
951 | |
952 | |
953 void TemplateTable::dstore(int n) { | |
954 transition(dtos, vtos); | |
955 FloatRegister src = Ftos_d; | |
956 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
957 } | |
958 | |
959 | |
960 void TemplateTable::astore(int n) { | |
961 transition(vtos, vtos); | |
1506 | 962 __ load_ptr(0, Otos_i); |
963 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 964 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
1506 | 965 __ store_local_ptr(n, Otos_i); |
0 | 966 } |
967 | |
968 | |
969 void TemplateTable::pop() { | |
970 transition(vtos, vtos); | |
1506 | 971 __ inc(Lesp, Interpreter::stackElementSize); |
0 | 972 } |
973 | |
974 | |
975 void TemplateTable::pop2() { | |
976 transition(vtos, vtos); | |
1506 | 977 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
0 | 978 } |
979 | |
980 | |
981 void TemplateTable::dup() { | |
982 transition(vtos, vtos); | |
983 // stack: ..., a | |
984 // load a and tag | |
1506 | 985 __ load_ptr(0, Otos_i); |
986 __ push_ptr(Otos_i); | |
0 | 987 // stack: ..., a, a |
988 } | |
989 | |
990 | |
991 void TemplateTable::dup_x1() { | |
992 transition(vtos, vtos); | |
993 // stack: ..., a, b | |
1506 | 994 __ load_ptr( 1, G3_scratch); // get a |
995 __ load_ptr( 0, Otos_l1); // get b | |
996 __ store_ptr(1, Otos_l1); // put b | |
997 __ store_ptr(0, G3_scratch); // put a - like swap | |
998 __ push_ptr(Otos_l1); // push b | |
0 | 999 // stack: ..., b, a, b |
1000 } | |
1001 | |
1002 | |
1003 void TemplateTable::dup_x2() { | |
1004 transition(vtos, vtos); | |
1005 // stack: ..., a, b, c | |
1006 // get c and push on stack, reuse registers | |
1506 | 1007 __ load_ptr( 0, G3_scratch); // get c |
1008 __ push_ptr(G3_scratch); // push c with tag | |
0 | 1009 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
1010 // (stack offsets n+1 now) | |
1506 | 1011 __ load_ptr( 3, Otos_l1); // get a |
1012 __ store_ptr(3, G3_scratch); // put c at 3 | |
0 | 1013 // stack: ..., c, b, c, c (a in reg) |
1506 | 1014 __ load_ptr( 2, G3_scratch); // get b |
1015 __ store_ptr(2, Otos_l1); // put a at 2 | |
0 | 1016 // stack: ..., c, a, c, c (b in reg) |
1506 | 1017 __ store_ptr(1, G3_scratch); // put b at 1 |
0 | 1018 // stack: ..., c, a, b, c |
1019 } | |
1020 | |
1021 | |
1022 void TemplateTable::dup2() { | |
1023 transition(vtos, vtos); | |
1506 | 1024 __ load_ptr(1, G3_scratch); // get a |
1025 __ load_ptr(0, Otos_l1); // get b | |
1026 __ push_ptr(G3_scratch); // push a | |
1027 __ push_ptr(Otos_l1); // push b | |
0 | 1028 // stack: ..., a, b, a, b |
1029 } | |
1030 | |
1031 | |
1032 void TemplateTable::dup2_x1() { | |
1033 transition(vtos, vtos); | |
1034 // stack: ..., a, b, c | |
1506 | 1035 __ load_ptr( 1, Lscratch); // get b |
1036 __ load_ptr( 2, Otos_l1); // get a | |
1037 __ store_ptr(2, Lscratch); // put b at a | |
0 | 1038 // stack: ..., b, b, c |
1506 | 1039 __ load_ptr( 0, G3_scratch); // get c |
1040 __ store_ptr(1, G3_scratch); // put c at b | |
0 | 1041 // stack: ..., b, c, c |
1506 | 1042 __ store_ptr(0, Otos_l1); // put a at c |
0 | 1043 // stack: ..., b, c, a |
1506 | 1044 __ push_ptr(Lscratch); // push b |
1045 __ push_ptr(G3_scratch); // push c | |
0 | 1046 // stack: ..., b, c, a, b, c |
1047 } | |
1048 | |
1049 | |
1050 // The spec says that these types can be a mixture of category 1 (1 word) | |
1051 // types and/or category 2 types (long and doubles) | |
1052 void TemplateTable::dup2_x2() { | |
1053 transition(vtos, vtos); | |
1054 // stack: ..., a, b, c, d | |
1506 | 1055 __ load_ptr( 1, Lscratch); // get c |
1056 __ load_ptr( 3, Otos_l1); // get a | |
1057 __ store_ptr(3, Lscratch); // put c at 3 | |
1058 __ store_ptr(1, Otos_l1); // put a at 1 | |
0 | 1059 // stack: ..., c, b, a, d |
1506 | 1060 __ load_ptr( 2, G3_scratch); // get b |
1061 __ load_ptr( 0, Otos_l1); // get d | |
1062 __ store_ptr(0, G3_scratch); // put b at 0 | |
1063 __ store_ptr(2, Otos_l1); // put d at 2 | |
0 | 1064 // stack: ..., c, d, a, b |
1506 | 1065 __ push_ptr(Lscratch); // push c |
1066 __ push_ptr(Otos_l1); // push d | |
0 | 1067 // stack: ..., c, d, a, b, c, d |
1068 } | |
1069 | |
1070 | |
1071 void TemplateTable::swap() { | |
1072 transition(vtos, vtos); | |
1073 // stack: ..., a, b | |
1506 | 1074 __ load_ptr( 1, G3_scratch); // get a |
1075 __ load_ptr( 0, Otos_l1); // get b | |
1076 __ store_ptr(0, G3_scratch); // put b | |
1077 __ store_ptr(1, Otos_l1); // put a | |
0 | 1078 // stack: ..., b, a |
1079 } | |
1080 | |
1081 | |
1082 void TemplateTable::iop2(Operation op) { | |
1083 transition(itos, itos); | |
1084 __ pop_i(O1); | |
1085 switch (op) { | |
1086 case add: __ add(O1, Otos_i, Otos_i); break; | |
1087 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
1088 // %%%%% Mul may not exist: better to call .mul? | |
1089 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
1506 | 1090 case _and: __ and3(O1, Otos_i, Otos_i); break; |
1091 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
1092 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
0 | 1093 case shl: __ sll(O1, Otos_i, Otos_i); break; |
1094 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
1095 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
1096 default: ShouldNotReachHere(); | |
1097 } | |
1098 } | |
1099 | |
1100 | |
1101 void TemplateTable::lop2(Operation op) { | |
1102 transition(ltos, ltos); | |
1103 __ pop_l(O2); | |
1104 switch (op) { | |
1105 #ifdef _LP64 | |
1506 | 1106 case add: __ add(O2, Otos_l, Otos_l); break; |
1107 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
1108 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
1109 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
1110 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
0 | 1111 #else |
1112 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
1113 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
1506 | 1114 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
1115 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
1116 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
0 | 1117 #endif |
1118 default: ShouldNotReachHere(); | |
1119 } | |
1120 } | |
1121 | |
1122 | |
1123 void TemplateTable::idiv() { | |
1124 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
1125 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
1126 | |
1127 transition(itos, itos); | |
1128 __ pop_i(O1); // get 1st op | |
1129 | |
1130 // Y contains upper 32 bits of result, set it to 0 or all ones | |
1131 __ wry(G0); | |
1132 __ mov(~0, G3_scratch); | |
1133 | |
1134 __ tst(O1); | |
1135 Label neg; | |
1136 __ br(Assembler::negative, true, Assembler::pn, neg); | |
1137 __ delayed()->wry(G3_scratch); | |
1138 __ bind(neg); | |
1139 | |
1140 Label ok; | |
1141 __ tst(Otos_i); | |
1142 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
1143 | |
1144 const int min_int = 0x80000000; | |
1145 Label regular; | |
1146 __ cmp(Otos_i, -1); | |
1147 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
1148 #ifdef _LP64 | |
1149 // Don't put set in delay slot | |
1150 // Set will turn into multiple instructions in 64 bit mode | |
1151 __ delayed()->nop(); | |
1152 __ set(min_int, G4_scratch); | |
1153 #else | |
1154 __ delayed()->set(min_int, G4_scratch); | |
1155 #endif | |
1156 Label done; | |
1157 __ cmp(O1, G4_scratch); | |
1158 __ br(Assembler::equal, true, Assembler::pt, done); | |
1159 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
1160 | |
1161 __ bind(regular); | |
1162 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
1163 __ bind(done); | |
1164 } | |
1165 | |
1166 | |
1167 void TemplateTable::irem() { | |
1168 transition(itos, itos); | |
1169 __ mov(Otos_i, O2); // save divisor | |
1170 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
1171 __ smul(Otos_i, O2, Otos_i); | |
1172 __ sub(O1, Otos_i, Otos_i); | |
1173 } | |
1174 | |
1175 | |
1176 void TemplateTable::lmul() { | |
1177 transition(ltos, ltos); | |
1178 __ pop_l(O2); | |
1179 #ifdef _LP64 | |
1180 __ mulx(Otos_l, O2, Otos_l); | |
1181 #else | |
1182 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
1183 #endif | |
1184 | |
1185 } | |
1186 | |
1187 | |
1188 void TemplateTable::ldiv() { | |
1189 transition(ltos, ltos); | |
1190 | |
1191 // check for zero | |
1192 __ pop_l(O2); | |
1193 #ifdef _LP64 | |
1194 __ tst(Otos_l); | |
1195 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1196 __ sdivx(O2, Otos_l, Otos_l); | |
1197 #else | |
1198 __ orcc(Otos_l1, Otos_l2, G0); | |
1199 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1200 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
1201 #endif | |
1202 } | |
1203 | |
1204 | |
1205 void TemplateTable::lrem() { | |
1206 transition(ltos, ltos); | |
1207 | |
1208 // check for zero | |
1209 __ pop_l(O2); | |
1210 #ifdef _LP64 | |
1211 __ tst(Otos_l); | |
1212 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1213 __ sdivx(O2, Otos_l, Otos_l2); | |
1214 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
1215 __ sub (O2, Otos_l2, Otos_l); | |
1216 #else | |
1217 __ orcc(Otos_l1, Otos_l2, G0); | |
1218 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1219 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
1220 #endif | |
1221 } | |
1222 | |
1223 | |
1224 void TemplateTable::lshl() { | |
1225 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
1226 | |
1227 __ pop_l(O2); // shift value in O2, O3 | |
1228 #ifdef _LP64 | |
1229 __ sllx(O2, Otos_i, Otos_l); | |
1230 #else | |
1231 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1232 #endif | |
1233 } | |
1234 | |
1235 | |
1236 void TemplateTable::lshr() { | |
1237 transition(itos, ltos); // %%%% see lshl comment | |
1238 | |
1239 __ pop_l(O2); // shift value in O2, O3 | |
1240 #ifdef _LP64 | |
1241 __ srax(O2, Otos_i, Otos_l); | |
1242 #else | |
1243 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1244 #endif | |
1245 } | |
1246 | |
1247 | |
1248 | |
1249 void TemplateTable::lushr() { | |
1250 transition(itos, ltos); // %%%% see lshl comment | |
1251 | |
1252 __ pop_l(O2); // shift value in O2, O3 | |
1253 #ifdef _LP64 | |
1254 __ srlx(O2, Otos_i, Otos_l); | |
1255 #else | |
1256 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1257 #endif | |
1258 } | |
1259 | |
1260 | |
1261 void TemplateTable::fop2(Operation op) { | |
1262 transition(ftos, ftos); | |
1263 switch (op) { | |
1264 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1265 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1266 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1267 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1268 case rem: | |
1269 assert(Ftos_f == F0, "just checking"); | |
1270 #ifdef _LP64 | |
1271 // LP64 calling conventions use F1, F3 for passing 2 floats | |
1272 __ pop_f(F1); | |
1273 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
1274 #else | |
1275 __ pop_i(O0); | |
1276 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
1277 __ ld( __ d_tmp, O1 ); | |
1278 #endif | |
1279 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
1280 assert( Ftos_f == F0, "fix this code" ); | |
1281 break; | |
1282 | |
1283 default: ShouldNotReachHere(); | |
1284 } | |
1285 } | |
1286 | |
1287 | |
1288 void TemplateTable::dop2(Operation op) { | |
1289 transition(dtos, dtos); | |
1290 switch (op) { | |
1291 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1292 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1293 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1294 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1295 case rem: | |
1296 #ifdef _LP64 | |
1297 // Pass arguments in D0, D2 | |
1298 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
1299 __ pop_d( F0 ); | |
1300 #else | |
1301 // Pass arguments in O0O1, O2O3 | |
1302 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1303 __ ldd( __ d_tmp, O2 ); | |
1304 __ pop_d(Ftos_f); | |
1305 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1306 __ ldd( __ d_tmp, O0 ); | |
1307 #endif | |
1308 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
1309 assert( Ftos_d == F0, "fix this code" ); | |
1310 break; | |
1311 | |
1312 default: ShouldNotReachHere(); | |
1313 } | |
1314 } | |
1315 | |
1316 | |
1317 void TemplateTable::ineg() { | |
1318 transition(itos, itos); | |
1319 __ neg(Otos_i); | |
1320 } | |
1321 | |
1322 | |
1323 void TemplateTable::lneg() { | |
1324 transition(ltos, ltos); | |
1325 #ifdef _LP64 | |
1326 __ sub(G0, Otos_l, Otos_l); | |
1327 #else | |
1328 __ lneg(Otos_l1, Otos_l2); | |
1329 #endif | |
1330 } | |
1331 | |
1332 | |
1333 void TemplateTable::fneg() { | |
1334 transition(ftos, ftos); | |
1335 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
1336 } | |
1337 | |
1338 | |
1339 void TemplateTable::dneg() { | |
1340 transition(dtos, dtos); | |
1341 // v8 has fnegd if source and dest are the same | |
1342 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
1343 } | |
1344 | |
1345 | |
1346 void TemplateTable::iinc() { | |
1347 transition(vtos, vtos); | |
1348 locals_index(G3_scratch); | |
1349 __ ldsb(Lbcp, 2, O2); // load constant | |
1350 __ access_local_int(G3_scratch, Otos_i); | |
1351 __ add(Otos_i, O2, Otos_i); | |
1506 | 1352 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1353 } |
1354 | |
1355 | |
1356 void TemplateTable::wide_iinc() { | |
1357 transition(vtos, vtos); | |
1358 locals_index_wide(G3_scratch); | |
1359 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
1360 __ access_local_int(G3_scratch, Otos_i); | |
1361 __ add(Otos_i, O3, Otos_i); | |
1506 | 1362 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1363 } |
1364 | |
1365 | |
1366 void TemplateTable::convert() { | |
1367 // %%%%% Factor this first part accross platforms | |
1368 #ifdef ASSERT | |
1369 TosState tos_in = ilgl; | |
1370 TosState tos_out = ilgl; | |
1371 switch (bytecode()) { | |
1372 case Bytecodes::_i2l: // fall through | |
1373 case Bytecodes::_i2f: // fall through | |
1374 case Bytecodes::_i2d: // fall through | |
1375 case Bytecodes::_i2b: // fall through | |
1376 case Bytecodes::_i2c: // fall through | |
1377 case Bytecodes::_i2s: tos_in = itos; break; | |
1378 case Bytecodes::_l2i: // fall through | |
1379 case Bytecodes::_l2f: // fall through | |
1380 case Bytecodes::_l2d: tos_in = ltos; break; | |
1381 case Bytecodes::_f2i: // fall through | |
1382 case Bytecodes::_f2l: // fall through | |
1383 case Bytecodes::_f2d: tos_in = ftos; break; | |
1384 case Bytecodes::_d2i: // fall through | |
1385 case Bytecodes::_d2l: // fall through | |
1386 case Bytecodes::_d2f: tos_in = dtos; break; | |
1387 default : ShouldNotReachHere(); | |
1388 } | |
1389 switch (bytecode()) { | |
1390 case Bytecodes::_l2i: // fall through | |
1391 case Bytecodes::_f2i: // fall through | |
1392 case Bytecodes::_d2i: // fall through | |
1393 case Bytecodes::_i2b: // fall through | |
1394 case Bytecodes::_i2c: // fall through | |
1395 case Bytecodes::_i2s: tos_out = itos; break; | |
1396 case Bytecodes::_i2l: // fall through | |
1397 case Bytecodes::_f2l: // fall through | |
1398 case Bytecodes::_d2l: tos_out = ltos; break; | |
1399 case Bytecodes::_i2f: // fall through | |
1400 case Bytecodes::_l2f: // fall through | |
1401 case Bytecodes::_d2f: tos_out = ftos; break; | |
1402 case Bytecodes::_i2d: // fall through | |
1403 case Bytecodes::_l2d: // fall through | |
1404 case Bytecodes::_f2d: tos_out = dtos; break; | |
1405 default : ShouldNotReachHere(); | |
1406 } | |
1407 transition(tos_in, tos_out); | |
1408 #endif | |
1409 | |
1410 | |
1411 // Conversion | |
1412 Label done; | |
1413 switch (bytecode()) { | |
1414 case Bytecodes::_i2l: | |
1415 #ifdef _LP64 | |
1416 // Sign extend the 32 bits | |
1417 __ sra ( Otos_i, 0, Otos_l ); | |
1418 #else | |
1419 __ addcc(Otos_i, 0, Otos_l2); | |
1420 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
1421 __ delayed()->clr(Otos_l1); | |
1422 __ set(~0, Otos_l1); | |
1423 #endif | |
1424 break; | |
1425 | |
1426 case Bytecodes::_i2f: | |
1427 __ st(Otos_i, __ d_tmp ); | |
1428 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1429 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
1430 break; | |
1431 | |
1432 case Bytecodes::_i2d: | |
1433 __ st(Otos_i, __ d_tmp); | |
1434 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1435 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
1436 break; | |
1437 | |
1438 case Bytecodes::_i2b: | |
1439 __ sll(Otos_i, 24, Otos_i); | |
1440 __ sra(Otos_i, 24, Otos_i); | |
1441 break; | |
1442 | |
1443 case Bytecodes::_i2c: | |
1444 __ sll(Otos_i, 16, Otos_i); | |
1445 __ srl(Otos_i, 16, Otos_i); | |
1446 break; | |
1447 | |
1448 case Bytecodes::_i2s: | |
1449 __ sll(Otos_i, 16, Otos_i); | |
1450 __ sra(Otos_i, 16, Otos_i); | |
1451 break; | |
1452 | |
1453 case Bytecodes::_l2i: | |
1454 #ifndef _LP64 | |
1455 __ mov(Otos_l2, Otos_i); | |
1456 #else | |
1457 // Sign-extend into the high 32 bits | |
1458 __ sra(Otos_l, 0, Otos_i); | |
1459 #endif | |
1460 break; | |
1461 | |
1462 case Bytecodes::_l2f: | |
1463 case Bytecodes::_l2d: | |
1464 __ st_long(Otos_l, __ d_tmp); | |
1465 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
1466 | |
1467 if (VM_Version::v9_instructions_work()) { | |
1468 if (bytecode() == Bytecodes::_l2f) { | |
1469 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1470 } else { | |
1471 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
1472 } | |
1473 } else { | |
1474 __ call_VM_leaf( | |
1475 Lscratch, | |
1476 bytecode() == Bytecodes::_l2f | |
1477 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
1478 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
1479 ); | |
1480 } | |
1481 break; | |
1482 | |
1483 case Bytecodes::_f2i: { | |
1484 Label isNaN; | |
1485 // result must be 0 if value is NaN; test by comparing value to itself | |
1486 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
1487 // According to the v8 manual, you have to have a non-fp instruction | |
1488 // between fcmp and fb. | |
1489 if (!VM_Version::v9_instructions_work()) { | |
1490 __ nop(); | |
1491 } | |
1492 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
1493 __ delayed()->clr(Otos_i); // NaN | |
1494 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
1495 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
1496 __ ld(__ d_tmp, Otos_i); | |
1497 __ bind(isNaN); | |
1498 } | |
1499 break; | |
1500 | |
1501 case Bytecodes::_f2l: | |
1502 // must uncache tos | |
1503 __ push_f(); | |
1504 #ifdef _LP64 | |
1505 __ pop_f(F1); | |
1506 #else | |
1507 __ pop_i(O0); | |
1508 #endif | |
1509 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
1510 break; | |
1511 | |
1512 case Bytecodes::_f2d: | |
1513 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
1514 break; | |
1515 | |
1516 case Bytecodes::_d2i: | |
1517 case Bytecodes::_d2l: | |
1518 // must uncache tos | |
1519 __ push_d(); | |
1520 #ifdef _LP64 | |
1521 // LP64 calling conventions pass first double arg in D0 | |
1522 __ pop_d( Ftos_d ); | |
1523 #else | |
1524 __ pop_i( O0 ); | |
1525 __ pop_i( O1 ); | |
1526 #endif | |
1527 __ call_VM_leaf(Lscratch, | |
1528 bytecode() == Bytecodes::_d2i | |
1529 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
1530 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
1531 break; | |
1532 | |
1533 case Bytecodes::_d2f: | |
1534 if (VM_Version::v9_instructions_work()) { | |
1535 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1536 } | |
1537 else { | |
1538 // must uncache tos | |
1539 __ push_d(); | |
1540 __ pop_i(O0); | |
1541 __ pop_i(O1); | |
1542 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
1543 } | |
1544 break; | |
1545 | |
1546 default: ShouldNotReachHere(); | |
1547 } | |
1548 __ bind(done); | |
1549 } | |
1550 | |
1551 | |
1552 void TemplateTable::lcmp() { | |
1553 transition(ltos, itos); | |
1554 | |
1555 #ifdef _LP64 | |
1556 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
1557 __ lcmp( O1, Otos_l, Otos_i ); | |
1558 #else | |
1559 __ pop_l(O2); // cmp O2,3 to O0,1 | |
1560 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
1561 #endif | |
1562 } | |
1563 | |
1564 | |
1565 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1566 | |
1567 if (is_float) __ pop_f(F2); | |
1568 else __ pop_d(F2); | |
1569 | |
1570 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
1571 | |
1572 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
1573 } | |
1574 | |
1575 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1576 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
1577 __ verify_thread(); | |
1578 | |
1579 const Register O2_bumped_count = O2; | |
1580 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
1581 | |
1582 // get (wide) offset to O1_disp | |
1583 const Register O1_disp = O1; | |
1584 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
1585 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
1586 | |
1587 // Handle all the JSR stuff here, then exit. | |
1588 // It's much shorter and cleaner than intermingling with the | |
605 | 1589 // non-JSR normal-branch stuff occurring below. |
0 | 1590 if( is_jsr ) { |
1591 // compute return address as bci in Otos_i | |
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1592 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1593 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1594 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
0 | 1595 |
1596 // Bump Lbcp to target of JSR | |
1597 __ add(Lbcp, O1_disp, Lbcp); | |
1598 // Push returnAddress for "ret" on stack | |
1506 | 1599 __ push_ptr(Otos_i); |
0 | 1600 // And away we go! |
1601 __ dispatch_next(vtos); | |
1602 return; | |
1603 } | |
1604 | |
1605 // Normal (non-jsr) branch handling | |
1606 | |
1607 // Save the current Lbcp | |
1608 const Register O0_cur_bcp = O0; | |
1609 __ mov( Lbcp, O0_cur_bcp ); | |
1610 | |
1783 | 1611 |
0 | 1612 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
1613 if ( increment_invocation_counter_for_backward_branches ) { | |
1614 Label Lforward; | |
1615 // check branch direction | |
1616 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
1617 // Bump bytecode pointer by displacement (take the branch) | |
1618 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
1619 | |
1783 | 1620 if (TieredCompilation) { |
1621 Label Lno_mdo, Loverflow; | |
1622 int increment = InvocationCounter::count_increment; | |
1623 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1624 if (ProfileInterpreter) { | |
1625 // If no method data exists, go to profile_continue. | |
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1626 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
3839 | 1627 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
1783 | 1628 |
1629 // Increment backedge counter in the MDO | |
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1630 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1631 in_bytes(InvocationCounter::counter_offset())); |
1632 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1633 Assembler::notZero, &Lforward); | |
3839 | 1634 __ ba_short(Loverflow); |
0 | 1635 } |
1783 | 1636 |
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1637 // If there's no MDO, increment counter in Method* |
1783 | 1638 __ bind(Lno_mdo); |
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1639 Address backedge_counter(Lmethod, in_bytes(Method::backedge_counter_offset()) + |
1783 | 1640 in_bytes(InvocationCounter::counter_offset())); |
1641 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1642 Assembler::notZero, &Lforward); | |
1643 __ bind(Loverflow); | |
1644 | |
1645 // notify point for loop, pass branch bytecode | |
1646 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
1647 | |
1648 // Was an OSR adapter generated? | |
1649 // O0 = osr nmethod | |
3839 | 1650 __ br_null_short(O0, Assembler::pn, Lforward); |
1783 | 1651 |
1652 // Has the nmethod been invalidated already? | |
1653 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
3839 | 1654 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
1783 | 1655 |
1656 // migrate the interpreter frame off of the stack | |
1657 | |
1658 __ mov(G2_thread, L7); | |
1659 // save nmethod | |
1660 __ mov(O0, L6); | |
1661 __ set_last_Java_frame(SP, noreg); | |
1662 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
1663 __ reset_last_Java_frame(); | |
1664 __ mov(L7, G2_thread); | |
1665 | |
1666 // move OSR nmethod to I1 | |
1667 __ mov(L6, I1); | |
1668 | |
1669 // OSR buffer to I0 | |
1670 __ mov(O0, I0); | |
1671 | |
1672 // remove the interpreter frame | |
1673 __ restore(I5_savedSP, 0, SP); | |
1674 | |
1675 // Jump to the osr code. | |
1676 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
1677 __ jmp(O2, G0); | |
1678 __ delayed()->nop(); | |
1679 | |
0 | 1680 } else { |
1783 | 1681 // Update Backedge branch separately from invocations |
1682 const Register G4_invoke_ctr = G4; | |
1683 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
1684 if (ProfileInterpreter) { | |
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1685 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
1783 | 1686 if (UseOnStackReplacement) { |
1687 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
1688 } | |
1689 } else { | |
1690 if (UseOnStackReplacement) { | |
1691 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
1692 } | |
0 | 1693 } |
1694 } | |
1695 | |
1696 __ bind(Lforward); | |
1697 } else | |
1698 // Bump bytecode pointer by displacement (take the branch) | |
1699 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
1700 | |
1701 // continue with bytecode @ target | |
1702 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
1703 // %%%%% and changing dispatch_next to dispatch_only | |
1704 __ dispatch_next(vtos); | |
1705 } | |
1706 | |
1707 | |
1708 // Note Condition in argument is TemplateTable::Condition | |
1709 // arg scope is within class scope | |
1710 | |
1711 void TemplateTable::if_0cmp(Condition cc) { | |
1712 // no pointers, integer only! | |
1713 transition(itos, vtos); | |
1714 // assume branch is more often taken than not (loops use backward branches) | |
1715 __ cmp( Otos_i, 0); | |
1716 __ if_cmp(ccNot(cc), false); | |
1717 } | |
1718 | |
1719 | |
1720 void TemplateTable::if_icmp(Condition cc) { | |
1721 transition(itos, vtos); | |
1722 __ pop_i(O1); | |
1723 __ cmp(O1, Otos_i); | |
1724 __ if_cmp(ccNot(cc), false); | |
1725 } | |
1726 | |
1727 | |
1728 void TemplateTable::if_nullcmp(Condition cc) { | |
1729 transition(atos, vtos); | |
1730 __ tst(Otos_i); | |
1731 __ if_cmp(ccNot(cc), true); | |
1732 } | |
1733 | |
1734 | |
1735 void TemplateTable::if_acmp(Condition cc) { | |
1736 transition(atos, vtos); | |
1737 __ pop_ptr(O1); | |
1738 __ verify_oop(O1); | |
1739 __ verify_oop(Otos_i); | |
1740 __ cmp(O1, Otos_i); | |
1741 __ if_cmp(ccNot(cc), true); | |
1742 } | |
1743 | |
1744 | |
1745 | |
1746 void TemplateTable::ret() { | |
1747 transition(vtos, vtos); | |
1748 locals_index(G3_scratch); | |
1749 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1750 // Otos_i contains the bci, compute the bcp from that | |
1751 | |
1752 #ifdef _LP64 | |
1753 #ifdef ASSERT | |
1754 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
1755 // the result. The return address (really a BCI) was stored with an | |
1756 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
1757 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
1758 // loaded value. | |
1759 { Label zzz ; | |
1760 __ set (65536, G3_scratch) ; | |
1761 __ cmp (Otos_i, G3_scratch) ; | |
1762 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
1763 __ delayed()->nop(); | |
1764 __ stop("BCI is in the wrong register half?"); | |
1765 __ bind (zzz) ; | |
1766 } | |
1767 #endif | |
1768 #endif | |
1769 | |
1770 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1771 | |
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1772 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1773 __ add(G3_scratch, Otos_i, G3_scratch); |
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1774 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1775 __ dispatch_next(vtos); |
1776 } | |
1777 | |
1778 | |
1779 void TemplateTable::wide_ret() { | |
1780 transition(vtos, vtos); | |
1781 locals_index_wide(G3_scratch); | |
1782 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1783 // Otos_i contains the bci, compute the bcp from that | |
1784 | |
1785 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1786 | |
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1787 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1788 __ add(G3_scratch, Otos_i, G3_scratch); |
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1789 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1790 __ dispatch_next(vtos); |
1791 } | |
1792 | |
1793 | |
1794 void TemplateTable::tableswitch() { | |
1795 transition(itos, vtos); | |
1796 Label default_case, continue_execution; | |
1797 | |
1798 // align bcp | |
1799 __ add(Lbcp, BytesPerInt, O1); | |
1800 __ and3(O1, -BytesPerInt, O1); | |
1801 // load lo, hi | |
1802 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
1803 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
1804 #ifdef _LP64 | |
1805 // Sign extend the 32 bits | |
1806 __ sra ( Otos_i, 0, Otos_i ); | |
1807 #endif /* _LP64 */ | |
1808 | |
1809 // check against lo & hi | |
1810 __ cmp( Otos_i, O2); | |
1811 __ br( Assembler::less, false, Assembler::pn, default_case); | |
1812 __ delayed()->cmp( Otos_i, O3 ); | |
1813 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
1814 // lookup dispatch offset | |
1815 __ delayed()->sub(Otos_i, O2, O2); | |
1816 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
1817 __ sll(O2, LogBytesPerInt, O2); | |
1818 __ add(O2, 3 * BytesPerInt, O2); | |
3839 | 1819 __ ba(continue_execution); |
0 | 1820 __ delayed()->ld(O1, O2, O2); |
1821 // handle default | |
1822 __ bind(default_case); | |
1823 __ profile_switch_default(O3); | |
1824 __ ld(O1, 0, O2); // get default offset | |
1825 // continue execution | |
1826 __ bind(continue_execution); | |
1827 __ add(Lbcp, O2, Lbcp); | |
1828 __ dispatch_next(vtos); | |
1829 } | |
1830 | |
1831 | |
1832 void TemplateTable::lookupswitch() { | |
1833 transition(itos, itos); | |
1834 __ stop("lookupswitch bytecode should have been rewritten"); | |
1835 } | |
1836 | |
1837 void TemplateTable::fast_linearswitch() { | |
1838 transition(itos, vtos); | |
1839 Label loop_entry, loop, found, continue_execution; | |
1840 // align bcp | |
1841 __ add(Lbcp, BytesPerInt, O1); | |
1842 __ and3(O1, -BytesPerInt, O1); | |
1843 // set counter | |
1844 __ ld(O1, BytesPerInt, O2); | |
1845 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
1846 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
3839 | 1847 __ ba(loop_entry); |
0 | 1848 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
1849 | |
1850 // table search | |
1851 __ bind(loop); | |
1852 __ cmp(O4, Otos_i); | |
1853 __ br(Assembler::equal, true, Assembler::pn, found); | |
1854 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
1855 __ inc(O3, 2 * BytesPerInt); | |
1856 | |
1857 __ bind(loop_entry); | |
1858 __ cmp(O2, O3); | |
1859 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
1860 __ delayed()->ld(O3, 0, O4); | |
1861 | |
1862 // default case | |
1863 __ ld(O1, 0, O4); // get default offset | |
1864 if (ProfileInterpreter) { | |
1865 __ profile_switch_default(O3); | |
3839 | 1866 __ ba_short(continue_execution); |
0 | 1867 } |
1868 | |
1869 // entry found -> get offset | |
1870 __ bind(found); | |
1871 if (ProfileInterpreter) { | |
1872 __ sub(O3, O1, O3); | |
1873 __ sub(O3, 2*BytesPerInt, O3); | |
1874 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
1875 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
1876 | |
1877 __ bind(continue_execution); | |
1878 } | |
1879 __ add(Lbcp, O4, Lbcp); | |
1880 __ dispatch_next(vtos); | |
1881 } | |
1882 | |
1883 | |
1884 void TemplateTable::fast_binaryswitch() { | |
1885 transition(itos, vtos); | |
1886 // Implementation using the following core algorithm: (copied from Intel) | |
1887 // | |
1888 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1889 // // Binary search according to "Methodik des Programmierens" by | |
1890 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1891 // int i = 0; | |
1892 // int j = n; | |
1893 // while (i+1 < j) { | |
1894 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1895 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1896 // // where a stands for the array and assuming that the (inexisting) | |
1897 // // element a[n] is infinitely big. | |
1898 // int h = (i + j) >> 1; | |
1899 // // i < h < j | |
1900 // if (key < array[h].fast_match()) { | |
1901 // j = h; | |
1902 // } else { | |
1903 // i = h; | |
1904 // } | |
1905 // } | |
1906 // // R: a[i] <= key < a[i+1] or Q | |
1907 // // (i.e., if key is within array, i is the correct index) | |
1908 // return i; | |
1909 // } | |
1910 | |
1911 // register allocation | |
1912 assert(Otos_i == O0, "alias checking"); | |
1913 const Register Rkey = Otos_i; // already set (tosca) | |
1914 const Register Rarray = O1; | |
1915 const Register Ri = O2; | |
1916 const Register Rj = O3; | |
1917 const Register Rh = O4; | |
1918 const Register Rscratch = O5; | |
1919 | |
1920 const int log_entry_size = 3; | |
1921 const int entry_size = 1 << log_entry_size; | |
1922 | |
1923 Label found; | |
1924 // Find Array start | |
1925 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
1926 __ and3(Rarray, -BytesPerInt, Rarray); | |
1927 // initialize i & j (in delay slot) | |
1928 __ clr( Ri ); | |
1929 | |
1930 // and start | |
1931 Label entry; | |
3839 | 1932 __ ba(entry); |
0 | 1933 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
1934 // (Rj is already in the native byte-ordering.) | |
1935 | |
1936 // binary search loop | |
1937 { Label loop; | |
1938 __ bind( loop ); | |
1939 // int h = (i + j) >> 1; | |
1940 __ sra( Rh, 1, Rh ); | |
1941 // if (key < array[h].fast_match()) { | |
1942 // j = h; | |
1943 // } else { | |
1944 // i = h; | |
1945 // } | |
1946 __ sll( Rh, log_entry_size, Rscratch ); | |
1947 __ ld( Rarray, Rscratch, Rscratch ); | |
1948 // (Rscratch is already in the native byte-ordering.) | |
1949 __ cmp( Rkey, Rscratch ); | |
1950 if ( VM_Version::v9_instructions_work() ) { | |
1951 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
1952 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
1953 } | |
1954 else { | |
1955 Label end_of_if; | |
1956 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
1957 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
1958 __ mov( Rh, Ri ); // else i = h | |
1959 __ bind(end_of_if); // } | |
1960 } | |
1961 | |
1962 // while (i+1 < j) | |
1963 __ bind( entry ); | |
1964 __ add( Ri, 1, Rscratch ); | |
1965 __ cmp(Rscratch, Rj); | |
1966 __ br( Assembler::less, true, Assembler::pt, loop ); | |
1967 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
1968 } | |
1969 | |
1970 // end of binary search, result index is i (must check again!) | |
1971 Label default_case; | |
1972 Label continue_execution; | |
1973 if (ProfileInterpreter) { | |
1974 __ mov( Ri, Rh ); // Save index in i for profiling | |
1975 } | |
1976 __ sll( Ri, log_entry_size, Ri ); | |
1977 __ ld( Rarray, Ri, Rscratch ); | |
1978 // (Rscratch is already in the native byte-ordering.) | |
1979 __ cmp( Rkey, Rscratch ); | |
1980 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
1981 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
1982 | |
1983 // entry found -> j = offset | |
1984 __ inc( Ri, BytesPerInt ); | |
1985 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
1986 __ ld( Rarray, Ri, Rj ); | |
1987 // (Rj is already in the native byte-ordering.) | |
1988 | |
1989 if (ProfileInterpreter) { | |
3839 | 1990 __ ba_short(continue_execution); |
0 | 1991 } |
1992 | |
1993 __ bind(default_case); // fall through (if not profiling) | |
1994 __ profile_switch_default(Ri); | |
1995 | |
1996 __ bind(continue_execution); | |
1997 __ add( Lbcp, Rj, Lbcp ); | |
1998 __ dispatch_next( vtos ); | |
1999 } | |
2000 | |
2001 | |
2002 void TemplateTable::_return(TosState state) { | |
2003 transition(state, state); | |
2004 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
2005 | |
2006 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2007 assert(state == vtos, "only valid state"); | |
2008 __ mov(G0, G3_scratch); | |
2009 __ access_local_ptr(G3_scratch, Otos_i); | |
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2010 __ load_klass(Otos_i, O2); |
0 | 2011 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2012 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
0 | 2013 __ andcc(G3, O2, G0); |
2014 Label skip_register_finalizer; | |
2015 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
2016 __ delayed()->nop(); | |
2017 | |
2018 // Call out to do finalizer registration | |
2019 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
2020 | |
2021 __ bind(skip_register_finalizer); | |
2022 } | |
2023 | |
2024 __ remove_activation(state, /* throw_monitor_exception */ true); | |
2025 | |
2026 // The caller's SP was adjusted upon method entry to accomodate | |
2027 // the callee's non-argument locals. Undo that adjustment. | |
2028 __ ret(); // return to caller | |
2029 __ delayed()->restore(I5_savedSP, G0, SP); | |
2030 } | |
2031 | |
2032 | |
2033 // ---------------------------------------------------------------------------- | |
2034 // Volatile variables demand their effects be made known to all CPU's in | |
2035 // order. Store buffers on most chips allow reads & writes to reorder; the | |
2036 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
2037 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
2038 // reorder volatile references, the hardware also must not reorder them). | |
2039 // | |
2040 // According to the new Java Memory Model (JMM): | |
2041 // (1) All volatiles are serialized wrt to each other. | |
2042 // ALSO reads & writes act as aquire & release, so: | |
2043 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
2044 // the read float up to before the read. It's OK for non-volatile memory refs | |
2045 // that happen before the volatile read to float down below it. | |
2046 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
2047 // that happen BEFORE the write float down to after the write. It's OK for | |
2048 // non-volatile memory refs that happen after the volatile write to float up | |
2049 // before it. | |
2050 // | |
2051 // We only put in barriers around volatile refs (they are expensive), not | |
2052 // _between_ memory refs (that would require us to track the flavor of the | |
2053 // previous memory refs). Requirements (2) and (3) require some barriers | |
2054 // before volatile stores and after volatile loads. These nearly cover | |
2055 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
2056 // case is placed after volatile-stores although it could just as well go | |
2057 // before volatile-loads. | |
2058 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
2059 // Helper function to insert a is-volatile test and memory barrier | |
2060 // All current sparc implementations run in TSO, needing only StoreLoad | |
2061 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
2062 __ membar( order_constraint ); | |
2063 } | |
2064 | |
2065 // ---------------------------------------------------------------------------- | |
1565 | 2066 void TemplateTable::resolve_cache_and_index(int byte_no, |
2067 Register Rcache, | |
2068 Register index, | |
2069 size_t index_size) { | |
0 | 2070 // Depends on cpCacheOop layout! |
2071 Label resolved; | |
2072 | |
1565 | 2073 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2074 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2075 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2076 __ br(Assembler::equal, false, Assembler::pt, resolved); |
1503 | 2077 __ delayed()->set((int)bytecode(), O1); |
0 | 2078 |
2079 address entry; | |
2080 switch (bytecode()) { | |
2081 case Bytecodes::_getstatic : // fall through | |
2082 case Bytecodes::_putstatic : // fall through | |
2083 case Bytecodes::_getfield : // fall through | |
2084 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
2085 case Bytecodes::_invokevirtual : // fall through | |
2086 case Bytecodes::_invokespecial : // fall through | |
2087 case Bytecodes::_invokestatic : // fall through | |
2088 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2089 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
1503 | 2090 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2091 default: |
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2092 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2093 break; |
0 | 2094 } |
2095 // first time invocation - must resolve first | |
2096 __ call_VM(noreg, entry, O1); | |
2097 // Update registers with resolved info | |
1565 | 2098 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2099 __ bind(resolved); |
2100 } | |
2101 | |
2102 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2103 Register method, |
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2104 Register itable_index, |
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2105 Register flags, |
0 | 2106 bool is_invokevirtual, |
1565 | 2107 bool is_invokevfinal, |
2108 bool is_invokedynamic) { | |
0 | 2109 // Uses both G3_scratch and G4_scratch |
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2110 Register cache = G3_scratch; |
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2111 Register index = G4_scratch; |
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2112 assert_different_registers(cache, method, itable_index); |
0 | 2113 |
2114 // determine constant pool cache field offsets | |
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2115 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2116 const int method_offset = in_bytes( |
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2117 ConstantPoolCache::base_offset() + |
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2118 ((byte_no == f2_byte) |
0 | 2119 ? ConstantPoolCacheEntry::f2_offset() |
2120 : ConstantPoolCacheEntry::f1_offset() | |
2121 ) | |
2122 ); | |
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2123 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2124 ConstantPoolCacheEntry::flags_offset()); |
2125 // access constant pool cache fields | |
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2126 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2127 ConstantPoolCacheEntry::f2_offset()); |
2128 | |
2129 if (is_invokevfinal) { | |
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2130 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2131 __ ld_ptr(Address(cache, method_offset), method); |
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2132 } else { |
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2133 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2134 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2135 __ ld_ptr(Address(cache, method_offset), method); |
0 | 2136 } |
2137 | |
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2138 if (itable_index != noreg) { |
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2139 // pick up itable or appendix index from f2 also: |
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2140 __ ld_ptr(Address(cache, index_offset), itable_index); |
0 | 2141 } |
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2142 __ ld_ptr(Address(cache, flags_offset), flags); |
0 | 2143 } |
2144 | |
2145 // The Rcache register must be set before call | |
2146 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
2147 Register Rcache, | |
2148 Register index, | |
2149 Register Roffset, | |
2150 Register Rflags, | |
2151 bool is_static) { | |
2152 assert_different_registers(Rcache, Rflags, Roffset); | |
2153 | |
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2154 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2155 |
727 | 2156 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
2157 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
0 | 2158 if (is_static) { |
727 | 2159 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2160 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2161 __ ld_ptr( Robj, mirror_offset, Robj); |
0 | 2162 } |
2163 } | |
2164 | |
2165 // The registers Rcache and index expected to be set before call. | |
2166 // Correct values of the Rcache and index registers are preserved. | |
2167 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
2168 Register index, | |
2169 bool is_static, | |
2170 bool has_tos) { | |
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2171 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2172 |
2173 if (JvmtiExport::can_post_field_access()) { | |
2174 // Check to see if a field access watch has been set before we take | |
2175 // the time to call into the VM. | |
2176 Label Label1; | |
2177 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2178 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
0 | 2179 __ load_contents(get_field_access_count_addr, G1_scratch); |
3839 | 2180 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
0 | 2181 |
2182 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
2183 | |
2184 if (is_static) { | |
2185 __ clr(Otos_i); | |
2186 } else { | |
2187 if (has_tos) { | |
2188 // save object pointer before call_VM() clobbers it | |
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2189 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
0 | 2190 } else { |
2191 // Load top of stack (do not pop the value off the stack); | |
2192 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
2193 } | |
2194 __ verify_oop(Otos_i); | |
2195 } | |
2196 // Otos_i: object pointer or NULL if static | |
2197 // Rcache: cache entry pointer | |
2198 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
2199 Otos_i, Rcache); | |
2200 if (!is_static && has_tos) { | |
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2201 __ pop_ptr(Otos_i); // restore object pointer |
0 | 2202 __ verify_oop(Otos_i); |
2203 } | |
2204 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2205 __ bind(Label1); | |
2206 } | |
2207 } | |
2208 | |
2209 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2210 transition(vtos, vtos); | |
2211 | |
2212 Register Rcache = G3_scratch; | |
2213 Register index = G4_scratch; | |
2214 Register Rclass = Rcache; | |
2215 Register Roffset= G4_scratch; | |
2216 Register Rflags = G1_scratch; | |
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2217 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2218 |
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2219 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2220 jvmti_post_field_access(Rcache, index, is_static, false); |
2221 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2222 | |
2223 if (!is_static) { | |
2224 pop_and_check_object(Rclass); | |
2225 } else { | |
2226 __ verify_oop(Rclass); | |
2227 } | |
2228 | |
2229 Label exit; | |
2230 | |
2231 Assembler::Membar_mask_bits membar_bits = | |
2232 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2233 | |
2234 if (__ membar_has_effect(membar_bits)) { | |
2235 // Get volatile flag | |
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2236 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2237 __ and3(Rflags, Lscratch, Lscratch); |
2238 } | |
2239 | |
2240 Label checkVolatile; | |
2241 | |
2242 // compute field type | |
2243 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2244 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2245 // Make sure we don't need to mask Rflags after the above shift |
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2246 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2247 |
2248 // Check atos before itos for getstatic, more likely (in Queens at least) | |
2249 __ cmp(Rflags, atos); | |
2250 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
2251 __ delayed() ->cmp(Rflags, itos); | |
2252 | |
2253 // atos | |
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2254 __ load_heap_oop(Rclass, Roffset, Otos_i); |
0 | 2255 __ verify_oop(Otos_i); |
2256 __ push(atos); | |
2257 if (!is_static) { | |
2258 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
2259 } | |
3839 | 2260 __ ba(checkVolatile); |
0 | 2261 __ delayed()->tst(Lscratch); |
2262 | |
2263 __ bind(notObj); | |
2264 | |
2265 // cmp(Rflags, itos); | |
2266 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
2267 __ delayed() ->cmp(Rflags, ltos); | |
2268 | |
2269 // itos | |
2270 __ ld(Rclass, Roffset, Otos_i); | |
2271 __ push(itos); | |
2272 if (!is_static) { | |
2273 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
2274 } | |
3839 | 2275 __ ba(checkVolatile); |
0 | 2276 __ delayed()->tst(Lscratch); |
2277 | |
2278 __ bind(notInt); | |
2279 | |
2280 // cmp(Rflags, ltos); | |
2281 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
2282 __ delayed() ->cmp(Rflags, btos); | |
2283 | |
2284 // ltos | |
2285 // load must be atomic | |
2286 __ ld_long(Rclass, Roffset, Otos_l); | |
2287 __ push(ltos); | |
2288 if (!is_static) { | |
2289 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
2290 } | |
3839 | 2291 __ ba(checkVolatile); |
0 | 2292 __ delayed()->tst(Lscratch); |
2293 | |
2294 __ bind(notLong); | |
2295 | |
2296 // cmp(Rflags, btos); | |
2297 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
2298 __ delayed() ->cmp(Rflags, ctos); | |
2299 | |
2300 // btos | |
2301 __ ldsb(Rclass, Roffset, Otos_i); | |
2302 __ push(itos); | |
2303 if (!is_static) { | |
2304 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
2305 } | |
3839 | 2306 __ ba(checkVolatile); |
0 | 2307 __ delayed()->tst(Lscratch); |
2308 | |
2309 __ bind(notByte); | |
2310 | |
2311 // cmp(Rflags, ctos); | |
2312 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
2313 __ delayed() ->cmp(Rflags, stos); | |
2314 | |
2315 // ctos | |
2316 __ lduh(Rclass, Roffset, Otos_i); | |
2317 __ push(itos); | |
2318 if (!is_static) { | |
2319 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
2320 } | |
3839 | 2321 __ ba(checkVolatile); |
0 | 2322 __ delayed()->tst(Lscratch); |
2323 | |
2324 __ bind(notChar); | |
2325 | |
2326 // cmp(Rflags, stos); | |
2327 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
2328 __ delayed() ->cmp(Rflags, ftos); | |
2329 | |
2330 // stos | |
2331 __ ldsh(Rclass, Roffset, Otos_i); | |
2332 __ push(itos); | |
2333 if (!is_static) { | |
2334 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
2335 } | |
3839 | 2336 __ ba(checkVolatile); |
0 | 2337 __ delayed()->tst(Lscratch); |
2338 | |
2339 __ bind(notShort); | |
2340 | |
2341 | |
2342 // cmp(Rflags, ftos); | |
2343 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
2344 __ delayed() ->tst(Lscratch); | |
2345 | |
2346 // ftos | |
2347 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
2348 __ push(ftos); | |
2349 if (!is_static) { | |
2350 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
2351 } | |
3839 | 2352 __ ba(checkVolatile); |
0 | 2353 __ delayed()->tst(Lscratch); |
2354 | |
2355 __ bind(notFloat); | |
2356 | |
2357 | |
2358 // dtos | |
2359 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
2360 __ push(dtos); | |
2361 if (!is_static) { | |
2362 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
2363 } | |
2364 | |
2365 __ bind(checkVolatile); | |
2366 if (__ membar_has_effect(membar_bits)) { | |
2367 // __ tst(Lscratch); executed in delay slot | |
2368 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2369 __ delayed()->nop(); | |
2370 volatile_barrier(membar_bits); | |
2371 } | |
2372 | |
2373 __ bind(exit); | |
2374 } | |
2375 | |
2376 | |
2377 void TemplateTable::getfield(int byte_no) { | |
2378 getfield_or_static(byte_no, false); | |
2379 } | |
2380 | |
2381 void TemplateTable::getstatic(int byte_no) { | |
2382 getfield_or_static(byte_no, true); | |
2383 } | |
2384 | |
2385 | |
2386 void TemplateTable::fast_accessfield(TosState state) { | |
2387 transition(atos, state); | |
2388 Register Rcache = G3_scratch; | |
2389 Register index = G4_scratch; | |
2390 Register Roffset = G4_scratch; | |
2391 Register Rflags = Rcache; | |
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2392 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2393 |
2394 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2395 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
2396 | |
727 | 2397 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2398 |
2399 __ null_check(Otos_i); | |
2400 __ verify_oop(Otos_i); | |
2401 | |
2402 Label exit; | |
2403 | |
2404 Assembler::Membar_mask_bits membar_bits = | |
2405 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2406 if (__ membar_has_effect(membar_bits)) { | |
2407 // Get volatile flag | |
727 | 2408 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2409 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2410 } |
2411 | |
2412 switch (bytecode()) { | |
2413 case Bytecodes::_fast_bgetfield: | |
2414 __ ldsb(Otos_i, Roffset, Otos_i); | |
2415 break; | |
2416 case Bytecodes::_fast_cgetfield: | |
2417 __ lduh(Otos_i, Roffset, Otos_i); | |
2418 break; | |
2419 case Bytecodes::_fast_sgetfield: | |
2420 __ ldsh(Otos_i, Roffset, Otos_i); | |
2421 break; | |
2422 case Bytecodes::_fast_igetfield: | |
2423 __ ld(Otos_i, Roffset, Otos_i); | |
2424 break; | |
2425 case Bytecodes::_fast_lgetfield: | |
2426 __ ld_long(Otos_i, Roffset, Otos_l); | |
2427 break; | |
2428 case Bytecodes::_fast_fgetfield: | |
2429 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
2430 break; | |
2431 case Bytecodes::_fast_dgetfield: | |
2432 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
2433 break; | |
2434 case Bytecodes::_fast_agetfield: | |
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2435 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
0 | 2436 break; |
2437 default: | |
2438 ShouldNotReachHere(); | |
2439 } | |
2440 | |
2441 if (__ membar_has_effect(membar_bits)) { | |
2442 __ btst(Lscratch, Rflags); | |
2443 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2444 __ delayed()->nop(); | |
2445 volatile_barrier(membar_bits); | |
2446 __ bind(exit); | |
2447 } | |
2448 | |
2449 if (state == atos) { | |
2450 __ verify_oop(Otos_i); // does not blow flags! | |
2451 } | |
2452 } | |
2453 | |
2454 void TemplateTable::jvmti_post_fast_field_mod() { | |
2455 if (JvmtiExport::can_post_field_modification()) { | |
2456 // Check to see if a field modification watch has been set before we take | |
2457 // the time to call into the VM. | |
2458 Label done; | |
727 | 2459 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2460 __ load_contents(get_field_modification_count_addr, G4_scratch); |
3839 | 2461 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
0 | 2462 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
2463 __ verify_oop(G4_scratch); | |
2464 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
2465 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
2466 // Save tos values before call_VM() clobbers them. Since we have | |
2467 // to do it for every data type, we use the saved values as the | |
2468 // jvalue object. | |
2469 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
2470 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
2471 case Bytecodes::_fast_bputfield: // fall through | |
2472 case Bytecodes::_fast_sputfield: // fall through | |
2473 case Bytecodes::_fast_cputfield: // fall through | |
2474 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
2475 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
2476 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
2477 // get words in right order for use as jvalue object | |
2478 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
2479 } | |
2480 // setup pointer to jvalue object | |
2481 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
2482 // G4_scratch: object pointer | |
2483 // G1_scratch: cache entry pointer | |
2484 // G3_scratch: jvalue object on the stack | |
2485 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
2486 switch (bytecode()) { // restore tos values | |
2487 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
2488 case Bytecodes::_fast_bputfield: // fall through | |
2489 case Bytecodes::_fast_sputfield: // fall through | |
2490 case Bytecodes::_fast_cputfield: // fall through | |
2491 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
2492 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
2493 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
2494 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
2495 } | |
2496 __ bind(done); | |
2497 } | |
2498 } | |
2499 | |
2500 // The registers Rcache and index expected to be set before call. | |
2501 // The function may destroy various registers, just not the Rcache and index registers. | |
2502 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2503 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2504 |
2505 if (JvmtiExport::can_post_field_modification()) { | |
2506 // Check to see if a field modification watch has been set before we take | |
2507 // the time to call into the VM. | |
2508 Label Label1; | |
2509 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2510 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2511 __ load_contents(get_field_modification_count_addr, G1_scratch); |
3839 | 2512 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
0 | 2513 |
2514 // The Rcache and index registers have been already set. | |
2515 // This allows to eliminate this call but the Rcache and index | |
2516 // registers must be correspondingly used after this line. | |
2517 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
2518 | |
2519 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
2520 if (is_static) { | |
2521 // Life is simple. Null out the object pointer. | |
2522 __ clr(G4_scratch); | |
2523 } else { | |
2524 Register Rflags = G1_scratch; | |
2525 // Life is harder. The stack holds the value on top, followed by the | |
2526 // object. We don't know the size of the value, though; it could be | |
2527 // one or two words depending on its type. As a result, we must find | |
2528 // the type to determine where the object is. | |
2529 | |
2530 Label two_word, valsizeknown; | |
727 | 2531 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2532 __ mov(Lesp, G4_scratch); |
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2533 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2534 // Make sure we don't need to mask Rflags after the above shift |
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2535 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2536 __ cmp(Rflags, ltos); |
2537 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2538 __ delayed()->cmp(Rflags, dtos); | |
2539 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2540 __ delayed()->nop(); | |
2541 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
3839 | 2542 __ ba_short(valsizeknown); |
0 | 2543 __ bind(two_word); |
2544 | |
2545 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
2546 | |
2547 __ bind(valsizeknown); | |
2548 // setup object pointer | |
2549 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
2550 __ verify_oop(G4_scratch); | |
2551 } | |
2552 // setup pointer to jvalue object | |
2553 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
2554 // G4_scratch: object pointer or NULL if static | |
2555 // G3_scratch: cache entry pointer | |
2556 // G1_scratch: jvalue object on the stack | |
2557 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
2558 G4_scratch, G3_scratch, G1_scratch); | |
2559 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2560 __ bind(Label1); | |
2561 } | |
2562 } | |
2563 | |
2564 void TemplateTable::pop_and_check_object(Register r) { | |
2565 __ pop_ptr(r); | |
2566 __ null_check(r); // for field access must check obj. | |
2567 __ verify_oop(r); | |
2568 } | |
2569 | |
2570 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2571 transition(vtos, vtos); | |
2572 Register Rcache = G3_scratch; | |
2573 Register index = G4_scratch; | |
2574 Register Rclass = Rcache; | |
2575 Register Roffset= G4_scratch; | |
2576 Register Rflags = G1_scratch; | |
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2577 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2578 |
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2579 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2580 jvmti_post_field_mod(Rcache, index, is_static); |
2581 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2582 | |
2583 Assembler::Membar_mask_bits read_bits = | |
2584 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2585 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2586 | |
2587 Label notVolatile, checkVolatile, exit; | |
2588 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
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2589 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2590 __ and3(Rflags, Lscratch, Lscratch); |
2591 | |
2592 if (__ membar_has_effect(read_bits)) { | |
3839 | 2593 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2594 volatile_barrier(read_bits); |
2595 __ bind(notVolatile); | |
2596 } | |
2597 } | |
2598 | |
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2599 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2600 // Make sure we don't need to mask Rflags after the above shift |
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2601 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2602 |
2603 // compute field type | |
2604 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
2605 | |
2606 if (is_static) { | |
2607 // putstatic with object type most likely, check that first | |
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2608 __ cmp(Rflags, atos); |
0 | 2609 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2610 __ delayed()->cmp(Rflags, itos); |
0 | 2611 |
2612 // atos | |
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2613 { |
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2614 __ pop_ptr(); |
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2615 __ verify_oop(Otos_i); |
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2616 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2617 __ ba(checkVolatile); |
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2618 __ delayed()->tst(Lscratch); |
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2619 } |
0 | 2620 |
2621 __ bind(notObj); | |
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2622 // cmp(Rflags, itos); |
0 | 2623 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2624 __ delayed()->cmp(Rflags, btos); |
0 | 2625 |
2626 // itos | |
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2627 { |
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2628 __ pop_i(); |
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2629 __ st(Otos_i, Rclass, Roffset); |
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2630 __ ba(checkVolatile); |
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2631 __ delayed()->tst(Lscratch); |
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2632 } |
0 | 2633 |
2634 __ bind(notInt); | |
2635 } else { | |
2636 // putfield with int type most likely, check that first | |
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2637 __ cmp(Rflags, itos); |
0 | 2638 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2639 __ delayed()->cmp(Rflags, atos); |
0 | 2640 |
2641 // itos | |
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2642 { |
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2643 __ pop_i(); |
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2644 pop_and_check_object(Rclass); |
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2645 __ st(Otos_i, Rclass, Roffset); |
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2646 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
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2647 __ ba(checkVolatile); |
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2648 __ delayed()->tst(Lscratch); |
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2649 } |
0 | 2650 |
2651 __ bind(notInt); | |
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2652 // cmp(Rflags, atos); |
0 | 2653 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2654 __ delayed()->cmp(Rflags, btos); |
0 | 2655 |
2656 // atos | |
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2657 { |
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2658 __ pop_ptr(); |
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2659 pop_and_check_object(Rclass); |
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2660 __ verify_oop(Otos_i); |
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2661 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2662 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
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2663 __ ba(checkVolatile); |
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2664 __ delayed()->tst(Lscratch); |
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2665 } |
0 | 2666 |
2667 __ bind(notObj); | |
2668 } | |
2669 | |
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2670 // cmp(Rflags, btos); |
0 | 2671 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
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2672 __ delayed()->cmp(Rflags, ltos); |
0 | 2673 |
2674 // btos | |
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2675 { |
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2676 __ pop_i(); |
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2677 if (!is_static) pop_and_check_object(Rclass); |
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2678 __ stb(Otos_i, Rclass, Roffset); |
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2679 if (!is_static) { |
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2680 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
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2681 } |
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2682 __ ba(checkVolatile); |
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2683 __ delayed()->tst(Lscratch); |
0 | 2684 } |
2685 | |
2686 __ bind(notByte); | |
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2687 // cmp(Rflags, ltos); |
0 | 2688 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
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2689 __ delayed()->cmp(Rflags, ctos); |
0 | 2690 |
2691 // ltos | |
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2692 { |
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2693 __ pop_l(); |
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2694 if (!is_static) pop_and_check_object(Rclass); |
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2695 __ st_long(Otos_l, Rclass, Roffset); |
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2696 if (!is_static) { |
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2697 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
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2698 } |
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2699 __ ba(checkVolatile); |
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2700 __ delayed()->tst(Lscratch); |
0 | 2701 } |
2702 | |
2703 __ bind(notLong); | |
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2704 // cmp(Rflags, ctos); |
0 | 2705 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
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2706 __ delayed()->cmp(Rflags, stos); |
0 | 2707 |
2708 // ctos (char) | |
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2709 { |
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2710 __ pop_i(); |
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2711 if (!is_static) pop_and_check_object(Rclass); |
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2712 __ sth(Otos_i, Rclass, Roffset); |
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2713 if (!is_static) { |
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2714 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
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2715 } |
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2716 __ ba(checkVolatile); |
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2717 __ delayed()->tst(Lscratch); |
0 | 2718 } |
2719 | |
2720 __ bind(notChar); | |
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2721 // cmp(Rflags, stos); |
0 | 2722 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
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2723 __ delayed()->cmp(Rflags, ftos); |
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2724 |
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2725 // stos (short) |
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2726 { |
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2727 __ pop_i(); |
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2728 if (!is_static) pop_and_check_object(Rclass); |
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2729 __ sth(Otos_i, Rclass, Roffset); |
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2730 if (!is_static) { |
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2731 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
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2732 } |
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2733 __ ba(checkVolatile); |
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2734 __ delayed()->tst(Lscratch); |
0 | 2735 } |
2736 | |
2737 __ bind(notShort); | |
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2738 // cmp(Rflags, ftos); |
0 | 2739 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
2740 __ delayed()->nop(); | |
2741 | |
2742 // ftos | |
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2743 { |
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2744 __ pop_f(); |
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2745 if (!is_static) pop_and_check_object(Rclass); |
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2746 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
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2747 if (!is_static) { |
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2748 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
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2749 } |
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2750 __ ba(checkVolatile); |
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2751 __ delayed()->tst(Lscratch); |
0 | 2752 } |
2753 | |
2754 __ bind(notFloat); | |
2755 | |
2756 // dtos | |
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2757 { |
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2758 __ pop_d(); |
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2759 if (!is_static) pop_and_check_object(Rclass); |
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2760 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
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2761 if (!is_static) { |
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2762 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
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2763 } |
0 | 2764 } |
2765 | |
2766 __ bind(checkVolatile); | |
2767 __ tst(Lscratch); | |
2768 | |
2769 if (__ membar_has_effect(write_bits)) { | |
2770 // __ tst(Lscratch); in delay slot | |
2771 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2772 __ delayed()->nop(); | |
2773 volatile_barrier(Assembler::StoreLoad); | |
2774 __ bind(exit); | |
2775 } | |
2776 } | |
2777 | |
2778 void TemplateTable::fast_storefield(TosState state) { | |
2779 transition(state, vtos); | |
2780 Register Rcache = G3_scratch; | |
2781 Register Rclass = Rcache; | |
2782 Register Roffset= G4_scratch; | |
2783 Register Rflags = G1_scratch; | |
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2784 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2785 |
2786 jvmti_post_fast_field_mod(); | |
2787 | |
2788 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
2789 | |
2790 Assembler::Membar_mask_bits read_bits = | |
2791 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2792 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2793 | |
2794 Label notVolatile, checkVolatile, exit; | |
2795 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
727 | 2796 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
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2797 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2798 __ and3(Rflags, Lscratch, Lscratch); |
2799 if (__ membar_has_effect(read_bits)) { | |
3839 | 2800 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2801 volatile_barrier(read_bits); |
2802 __ bind(notVolatile); | |
2803 } | |
2804 } | |
2805 | |
727 | 2806 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2807 pop_and_check_object(Rclass); |
2808 | |
2809 switch (bytecode()) { | |
2810 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
2811 case Bytecodes::_fast_cputfield: /* fall through */ | |
2812 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
2813 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
2814 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
2815 case Bytecodes::_fast_fputfield: | |
2816 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
2817 break; | |
2818 case Bytecodes::_fast_dputfield: | |
2819 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
2820 break; | |
2821 case Bytecodes::_fast_aputfield: | |
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2822 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
0 | 2823 break; |
2824 default: | |
2825 ShouldNotReachHere(); | |
2826 } | |
2827 | |
2828 if (__ membar_has_effect(write_bits)) { | |
3839 | 2829 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
0 | 2830 volatile_barrier(Assembler::StoreLoad); |
2831 __ bind(exit); | |
2832 } | |
2833 } | |
2834 | |
2835 | |
2836 void TemplateTable::putfield(int byte_no) { | |
2837 putfield_or_static(byte_no, false); | |
2838 } | |
2839 | |
2840 void TemplateTable::putstatic(int byte_no) { | |
2841 putfield_or_static(byte_no, true); | |
2842 } | |
2843 | |
2844 | |
2845 void TemplateTable::fast_xaccess(TosState state) { | |
2846 transition(vtos, state); | |
2847 Register Rcache = G3_scratch; | |
2848 Register Roffset = G4_scratch; | |
2849 Register Rflags = G4_scratch; | |
2850 Register Rreceiver = Lscratch; | |
2851 | |
1506 | 2852 __ ld_ptr(Llocals, 0, Rreceiver); |
0 | 2853 |
2854 // access constant pool cache (is resolved) | |
2855 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
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2856 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2857 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
2858 | |
2859 __ verify_oop(Rreceiver); | |
2860 __ null_check(Rreceiver); | |
2861 if (state == atos) { | |
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2862 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
0 | 2863 } else if (state == itos) { |
2864 __ ld (Rreceiver, Roffset, Otos_i) ; | |
2865 } else if (state == ftos) { | |
2866 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
2867 } else { | |
2868 ShouldNotReachHere(); | |
2869 } | |
2870 | |
2871 Assembler::Membar_mask_bits membar_bits = | |
2872 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2873 if (__ membar_has_effect(membar_bits)) { | |
2874 | |
2875 // Get is_volatile value in Rflags and check if membar is needed | |
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2876 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2877 |
2878 // Test volatile | |
2879 Label notVolatile; | |
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2880 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2881 __ btst(Rflags, Lscratch); |
2882 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
2883 __ delayed()->nop(); | |
2884 volatile_barrier(membar_bits); | |
2885 __ bind(notVolatile); | |
2886 } | |
2887 | |
2888 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
2889 __ sub(Lbcp, 1, Lbcp); | |
2890 } | |
2891 | |
2892 //---------------------------------------------------------------------------------------------------- | |
2893 // Calls | |
2894 | |
2895 void TemplateTable::count_calls(Register method, Register temp) { | |
2896 // implemented elsewhere | |
2897 ShouldNotReachHere(); | |
2898 } | |
2899 | |
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2900 void TemplateTable::prepare_invoke(int byte_no, |
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2901 Register method, // linked method (or i-klass) |
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2902 Register ra, // return address |
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2903 Register index, // itable index, MethodType, etc. |
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2904 Register recv, // if caller wants to see it |
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2905 Register flags // if caller wants to test it |
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2906 ) { |
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2907 // determine flags |
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2908 const Bytecodes::Code code = bytecode(); |
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2909 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2910 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2911 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2912 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2913 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2914 const bool load_receiver = (recv != noreg); |
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2915 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2916 assert(recv == noreg || recv == O0, ""); |
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2917 assert(flags == noreg || flags == O1, ""); |
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2918 |
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2919 // setup registers & access constant pool cache |
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2920 if (recv == noreg) recv = O0; |
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2921 if (flags == noreg) flags = O1; |
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2922 const Register temp = O2; |
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2923 assert_different_registers(method, ra, index, recv, flags, temp); |
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2924 |
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2925 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
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2926 |
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2927 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
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2928 |
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2929 // maybe push appendix to arguments |
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2930 if (is_invokedynamic || is_invokehandle) { |
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|
2931 Label L_no_push; |
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2932 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
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2933 __ btst(flags, temp); |
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2934 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
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2935 __ delayed()->nop(); |
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2936 // Push the appendix as a trailing parameter. |
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2937 // This must be done before we get the receiver, |
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2938 // since the parameter_size includes it. |
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2939 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2940 __ load_resolved_reference_at_index(temp, index); |
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2941 __ verify_oop(temp); |
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2942 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
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2943 __ bind(L_no_push); |
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2944 } |
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2945 |
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2946 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2947 if (load_receiver) { |
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2948 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
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2949 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
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2950 __ verify_oop(recv); |
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2951 } |
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2952 |
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2953 // compute return type |
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2954 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
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2955 // Make sure we don't need to mask flags after the above shift |
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2956 ConstantPoolCacheEntry::verify_tos_state_shift(); |
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2957 // load return address |
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2958 { |
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2959 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2960 (address)Interpreter::return_5_addrs_by_index_table() : |
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2961 (address)Interpreter::return_3_addrs_by_index_table(); |
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2962 AddressLiteral table(table_addr); |
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2963 __ set(table, temp); |
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2964 __ sll(ra, LogBytesPerWord, ra); |
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2965 __ ld_ptr(Address(temp, ra), ra); |
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2966 } |
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2967 } |
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2968 |
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2969 |
0 | 2970 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
2971 Register Rtemp = G4_scratch; | |
2972 Register Rcall = Rindex; | |
2973 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
2974 | |
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2975 // get target Method* & entry point |
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2976 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
0 | 2977 __ call_from_interpreter(Rcall, Gargs, Rret); |
2978 } | |
2979 | |
2980 void TemplateTable::invokevirtual(int byte_no) { | |
2981 transition(vtos, vtos); | |
1565 | 2982 assert(byte_no == f2_byte, "use this argument"); |
0 | 2983 |
2984 Register Rscratch = G3_scratch; | |
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2985 Register Rtemp = G4_scratch; |
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2986 Register Rret = Lscratch; |
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2987 Register O0_recv = O0; |
0 | 2988 Label notFinal; |
2989 | |
1565 | 2990 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
0 | 2991 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
2992 | |
2993 // Check for vfinal | |
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2994 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
0 | 2995 __ btst(Rret, G4_scratch); |
2996 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
2997 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
2998 | |
2999 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
3000 | |
3001 invokevfinal_helper(Rscratch, Rret); | |
3002 | |
3003 __ bind(notFinal); | |
3004 | |
3005 __ mov(G5_method, Rscratch); // better scratch register | |
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3006 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
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3007 // receiver is in O0_recv |
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3008 __ verify_oop(O0_recv); |
0 | 3009 |
3010 // get return address | |
727 | 3011 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
3012 __ set(table, Rtemp); | |
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3013 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3014 // Make sure we don't need to mask Rret after the above shift |
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3015 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 3016 __ sll(Rret, LogBytesPerWord, Rret); |
3017 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
3018 | |
3019 // get receiver klass | |
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3020 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3021 __ load_klass(O0_recv, O0_recv); |
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3022 __ verify_klass_ptr(O0_recv); |
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3023 |
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3024 __ profile_virtual_call(O0_recv, O4); |
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3025 |
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3026 generate_vtable_call(O0_recv, Rscratch, Rret); |
0 | 3027 } |
3028 | |
3029 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3030 transition(vtos, vtos); | |
1565 | 3031 assert(byte_no == f2_byte, "use this argument"); |
0 | 3032 |
3033 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
1565 | 3034 /*is_invokevfinal*/true, false); |
0 | 3035 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
3036 invokevfinal_helper(G3_scratch, Lscratch); | |
3037 } | |
3038 | |
3039 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
3040 Register Rtemp = G4_scratch; | |
3041 | |
3042 // Load receiver from stack slot | |
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3043 __ lduh(G5_method, in_bytes(Method::size_of_parameters_offset()), G4_scratch); |
0 | 3044 __ load_receiver(G4_scratch, O0); |
3045 | |
3046 // receiver NULL check | |
3047 __ null_check(O0); | |
3048 | |
3049 __ profile_final_call(O4); | |
3050 | |
3051 // get return address | |
727 | 3052 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
3053 __ set(table, Rtemp); | |
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3054 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3055 // Make sure we don't need to mask Rret after the above shift |
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3056 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 3057 __ sll(Rret, LogBytesPerWord, Rret); |
3058 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
3059 | |
3060 | |
3061 // do the call | |
3062 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
3063 } | |
3064 | |
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3065 |
0 | 3066 void TemplateTable::invokespecial(int byte_no) { |
3067 transition(vtos, vtos); | |
1565 | 3068 assert(byte_no == f1_byte, "use this argument"); |
0 | 3069 |
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3070 const Register Rret = Lscratch; |
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3071 const Register O0_recv = O0; |
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3072 const Register Rscratch = G3_scratch; |
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3073 |
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3074 prepare_invoke(byte_no, G5_method, Rret, noreg, O0_recv); // get receiver also for null check |
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3075 __ null_check(O0_recv); |
0 | 3076 |
3077 // do the call | |
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3078 __ profile_call(O4); |
0 | 3079 __ call_from_interpreter(Rscratch, Gargs, Rret); |
3080 } | |
3081 | |
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3082 |
0 | 3083 void TemplateTable::invokestatic(int byte_no) { |
3084 transition(vtos, vtos); | |
1565 | 3085 assert(byte_no == f1_byte, "use this argument"); |
0 | 3086 |
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3087 const Register Rret = Lscratch; |
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3088 const Register Rscratch = G3_scratch; |
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3089 |
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3090 prepare_invoke(byte_no, G5_method, Rret); // get f1 Method* |
0 | 3091 |
3092 // do the call | |
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3093 __ profile_call(O4); |
0 | 3094 __ call_from_interpreter(Rscratch, Gargs, Rret); |
3095 } | |
3096 | |
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3097 void TemplateTable::invokeinterface_object_method(Register RKlass, |
0 | 3098 Register Rcall, |
3099 Register Rret, | |
3100 Register Rflags) { | |
3101 Register Rscratch = G4_scratch; | |
3102 Register Rindex = Lscratch; | |
3103 | |
3104 assert_different_registers(Rscratch, Rindex, Rret); | |
3105 | |
3106 Label notFinal; | |
3107 | |
3108 // Check for vfinal | |
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3109 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), Rscratch); |
0 | 3110 __ btst(Rflags, Rscratch); |
3111 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
3112 __ delayed()->nop(); | |
3113 | |
3114 __ profile_final_call(O4); | |
3115 | |
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3116 // do the call - the index (f2) contains the Method* |
0 | 3117 assert_different_registers(G5_method, Gargs, Rcall); |
3118 __ mov(Rindex, G5_method); | |
3119 __ call_from_interpreter(Rcall, Gargs, Rret); | |
3120 __ bind(notFinal); | |
3121 | |
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3122 __ profile_virtual_call(RKlass, O4); |
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3123 generate_vtable_call(RKlass, Rindex, Rret); |
0 | 3124 } |
3125 | |
3126 | |
3127 void TemplateTable::invokeinterface(int byte_no) { | |
3128 transition(vtos, vtos); | |
1565 | 3129 assert(byte_no == f1_byte, "use this argument"); |
0 | 3130 |
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3131 const Register Rinterface = G1_scratch; |
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3132 const Register Rret = G3_scratch; |
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3133 const Register Rindex = Lscratch; |
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3134 const Register O0_recv = O0; |
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3135 const Register O1_flags = O1; |
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3136 const Register O2_Klass = O2; |
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3137 const Register Rscratch = G4_scratch; |
0 | 3138 assert_different_registers(Rscratch, G5_method); |
3139 | |
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3140 prepare_invoke(byte_no, Rinterface, Rret, Rindex, O0_recv, O1_flags); |
0 | 3141 |
3142 // get receiver klass | |
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3143 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3144 __ load_klass(O0_recv, O2_Klass); |
0 | 3145 |
3146 // Special case of invokeinterface called for virtual method of | |
3147 // java.lang.Object. See cpCacheOop.cpp for details. | |
3148 // This code isn't produced by javac, but could be produced by | |
3149 // another compliant java compiler. | |
3150 Label notMethod; | |
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3151 __ set((1 << ConstantPoolCacheEntry::is_forced_virtual_shift), Rscratch); |
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3152 __ btst(O1_flags, Rscratch); |
0 | 3153 __ br(Assembler::zero, false, Assembler::pt, notMethod); |
3154 __ delayed()->nop(); | |
3155 | |
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3156 invokeinterface_object_method(O2_Klass, Rinterface, Rret, O1_flags); |
0 | 3157 |
3158 __ bind(notMethod); | |
3159 | |
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3160 __ profile_virtual_call(O2_Klass, O4); |
0 | 3161 |
3162 // | |
3163 // find entry point to call | |
3164 // | |
3165 | |
3166 // compute start of first itableOffsetEntry (which is at end of vtable) | |
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3167 const int base = InstanceKlass::vtable_start_offset() * wordSize; |
0 | 3168 Label search; |
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3169 Register Rtemp = O1_flags; |
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3170 |
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3171 __ ld(O2_Klass, InstanceKlass::vtable_length_offset() * wordSize, Rtemp); |
0 | 3172 if (align_object_offset(1) > 1) { |
3173 __ round_to(Rtemp, align_object_offset(1)); | |
3174 } | |
3175 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
3176 if (Assembler::is_simm13(base)) { | |
3177 __ add(Rtemp, base, Rtemp); | |
3178 } else { | |
3179 __ set(base, Rscratch); | |
3180 __ add(Rscratch, Rtemp, Rtemp); | |
3181 } | |
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3182 __ add(O2_Klass, Rtemp, Rscratch); |
0 | 3183 |
3184 __ bind(search); | |
3185 | |
3186 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
3187 { | |
3188 Label ok; | |
3189 | |
3190 // Check that entry is non-null. Null entries are probably a bytecode | |
605 | 3191 // problem. If the interface isn't implemented by the receiver class, |
0 | 3192 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
3193 // this too but that's only if the entry isn't already resolved, so we | |
3194 // need to check again. | |
3839 | 3195 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
0 | 3196 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
3197 __ should_not_reach_here(); | |
3198 __ bind(ok); | |
3199 } | |
3200 | |
3201 __ cmp(Rinterface, Rtemp); | |
3202 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
3203 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
3204 | |
3205 // entry found and Rscratch points to it | |
3206 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
3207 | |
3208 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
3209 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
3210 __ add(Rscratch, Rindex, Rscratch); | |
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3211 __ ld_ptr(O2_Klass, Rscratch, G5_method); |
0 | 3212 |
3213 // Check for abstract method error. | |
3214 { | |
3215 Label ok; | |
3839 | 3216 __ br_notnull_short(G5_method, Assembler::pt, ok); |
0 | 3217 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
3218 __ should_not_reach_here(); | |
3219 __ bind(ok); | |
3220 } | |
3221 | |
3222 Register Rcall = Rinterface; | |
3223 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
3224 | |
3225 __ call_from_interpreter(Rcall, Gargs, Rret); | |
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3226 } |
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3227 |
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3228 void TemplateTable::invokehandle(int byte_no) { |
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3229 transition(vtos, vtos); |
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3230 assert(byte_no == f1_byte, "use this argument"); |
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3231 |
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3232 if (!EnableInvokeDynamic) { |
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3233 // rewriter does not generate this bytecode |
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3234 __ should_not_reach_here(); |
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3235 return; |
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|
3236 } |
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|
3237 |
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3238 const Register Rret = Lscratch; |
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3239 const Register G4_mtype = G4_scratch; |
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3240 const Register O0_recv = O0; |
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3241 const Register Rscratch = G3_scratch; |
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3242 |
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3243 prepare_invoke(byte_no, G5_method, Rret, G4_mtype, O0_recv); |
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3244 __ null_check(O0_recv); |
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3245 |
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3246 // G4: MethodType object (from cpool->resolved_references[f1], if necessary) |
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3247 // G5: MH.invokeExact_MT method (from f2) |
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3248 |
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3249 // Note: G4_mtype is already pushed (if necessary) by prepare_invoke |
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3250 |
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3251 // do the call |
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3252 __ verify_oop(G4_mtype); |
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3253 __ profile_final_call(O4); // FIXME: profile the LambdaForm also |
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3254 __ call_from_interpreter(Rscratch, Gargs, Rret); |
0 | 3255 } |
3256 | |
3257 | |
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3258 void TemplateTable::invokedynamic(int byte_no) { |
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3259 transition(vtos, vtos); |
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3260 assert(byte_no == f1_byte, "use this argument"); |
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3261 |
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3262 if (!EnableInvokeDynamic) { |
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3263 // We should not encounter this bytecode if !EnableInvokeDynamic. |
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3264 // The verifier will stop it. However, if we get past the verifier, |
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3265 // this will stop the thread in a reasonable way, without crashing the JVM. |
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3266 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
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|
3267 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
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|
3268 // the call_VM checks for exception, so we should never return here. |
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|
3269 __ should_not_reach_here(); |
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|
3270 return; |
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|
3271 } |
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|
3272 |
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3273 const Register Rret = Lscratch; |
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3274 const Register G4_callsite = G4_scratch; |
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3275 const Register Rscratch = G3_scratch; |
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3276 |
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3277 prepare_invoke(byte_no, G5_method, Rret, G4_callsite); |
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3278 |
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3279 // G4: CallSite object (from cpool->resolved_references[f1]) |
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3280 // G5: MH.linkToCallSite method (from f2) |
6266
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3281 |
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3282 // Note: G4_callsite is already pushed by prepare_invoke |
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3283 |
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|
3284 // %%% should make a type profile for any invokedynamic that takes a ref argument |
1503 | 3285 // profile this call |
3286 __ profile_call(O4); | |
3287 | |
6266
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3288 // do the call |
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3289 __ verify_oop(G4_callsite); |
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3290 __ call_from_interpreter(Rscratch, Gargs, Rret); |
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|
3291 } |
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|
3292 |
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|
3293 |
0 | 3294 //---------------------------------------------------------------------------------------------------- |
3295 // Allocation | |
3296 | |
3297 void TemplateTable::_new() { | |
3298 transition(vtos, atos); | |
3299 | |
3300 Label slow_case; | |
3301 Label done; | |
3302 Label initialize_header; | |
3303 Label initialize_object; // including clearing the fields | |
3304 | |
3305 Register RallocatedObject = Otos_i; | |
3306 Register RinstanceKlass = O1; | |
3307 Register Roffset = O3; | |
3308 Register Rscratch = O4; | |
3309 | |
3310 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3311 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
3312 // make sure the class we're about to instantiate has been resolved | |
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3313 // This is done before loading InstanceKlass to be consistent with the order |
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3314 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
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3315 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3316 __ ldub(G3_scratch, Roffset, G3_scratch); |
3317 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3318 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
3319 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
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3320 // get InstanceKlass |
0 | 3321 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
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3322 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3323 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); |
3324 | |
3325 // make sure klass is fully initialized: | |
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3326 __ ldub(RinstanceKlass, in_bytes(InstanceKlass::init_state_offset()), G3_scratch); |
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3327 __ cmp(G3_scratch, InstanceKlass::fully_initialized); |
0 | 3328 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); |
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|
3329 __ delayed()->ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
0 | 3330 |
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3331 // get instance_size in InstanceKlass (already aligned) |
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3332 //__ ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
0 | 3333 |
3334 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
3335 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
3336 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
3337 __ delayed()->nop(); | |
3338 | |
3339 // allocate the instance | |
3340 // 1) Try to allocate in the TLAB | |
3341 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
3342 // 3) if the above fails (or is not applicable), go to a slow case | |
3343 // (creates a new TLAB, etc.) | |
3344 | |
3345 const bool allow_shared_alloc = | |
3346 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
3347 | |
3348 if(UseTLAB) { | |
3349 Register RoldTopValue = RallocatedObject; | |
3892 | 3350 Register RtlabWasteLimitValue = G3_scratch; |
0 | 3351 Register RnewTopValue = G1_scratch; |
3352 Register RendValue = Rscratch; | |
3353 Register RfreeValue = RnewTopValue; | |
3354 | |
3355 // check if we can allocate in the TLAB | |
3356 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
3357 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
3358 __ add(RoldTopValue, Roffset, RnewTopValue); | |
3359 | |
3360 // if there is enough space, we do not CAS and do not clear | |
3361 __ cmp(RnewTopValue, RendValue); | |
3362 if(ZeroTLAB) { | |
3363 // the fields have already been cleared | |
3364 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
3365 } else { | |
3366 // initialize both the header and fields | |
3367 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
3368 } | |
3369 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
3370 | |
3371 if (allow_shared_alloc) { | |
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3372 // Check if tlab should be discarded (refill_waste_limit >= free) |
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3373 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); |
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3374 __ sub(RendValue, RoldTopValue, RfreeValue); |
0 | 3375 #ifdef _LP64 |
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3376 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
0 | 3377 #else |
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|
3378 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
0 | 3379 #endif |
3839 | 3380 __ cmp_and_brx_short(RtlabWasteLimitValue, RfreeValue, Assembler::greaterEqualUnsigned, Assembler::pt, slow_case); // tlab waste is small |
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3381 |
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3382 // increment waste limit to prevent getting stuck on this slow path |
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3383 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
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3384 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
0 | 3385 } else { |
3386 // No allocation in the shared eden. | |
3839 | 3387 __ ba_short(slow_case); |
0 | 3388 } |
3389 } | |
3390 | |
3391 // Allocation in the shared Eden | |
3392 if (allow_shared_alloc) { | |
3393 Register RoldTopValue = G1_scratch; | |
3394 Register RtopAddr = G3_scratch; | |
3395 Register RnewTopValue = RallocatedObject; | |
3396 Register RendValue = Rscratch; | |
3397 | |
3398 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
3399 | |
3400 Label retry; | |
3401 __ bind(retry); | |
3402 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
3403 __ ld_ptr(RendValue, 0, RendValue); | |
3404 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
3405 __ add(RoldTopValue, Roffset, RnewTopValue); | |
3406 | |
3407 // RnewTopValue contains the top address after the new object | |
3408 // has been allocated. | |
3839 | 3409 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
0 | 3410 |
3411 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
3412 VM_Version::v9_instructions_work() ? NULL : | |
3413 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
3414 | |
3415 // if someone beat us on the allocation, try again, otherwise continue | |
3839 | 3416 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
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3417 |
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3418 // bump total bytes allocated by this thread |
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3419 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
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3420 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
0 | 3421 } |
3422 | |
3423 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
3424 // clear object fields | |
3425 __ bind(initialize_object); | |
3426 __ deccc(Roffset, sizeof(oopDesc)); | |
3427 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
3428 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
3429 | |
3430 // initialize remaining object fields | |
3892 | 3431 if (UseBlockZeroing) { |
3432 // Use BIS for zeroing | |
3433 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
3434 } else { | |
3435 Label loop; | |
0 | 3436 __ subcc(Roffset, wordSize, Roffset); |
3437 __ bind(loop); | |
3438 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
3439 __ st_ptr(G0, G3_scratch, Roffset); | |
3440 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
3441 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
3442 } | |
3839 | 3443 __ ba_short(initialize_header); |
0 | 3444 } |
3445 | |
3446 // slow case | |
3447 __ bind(slow_case); | |
3448 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
3449 __ get_constant_pool(O1); | |
3450 | |
3451 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
3452 | |
3839 | 3453 __ ba_short(done); |
0 | 3454 |
3455 // Initialize the header: mark, klass | |
3456 __ bind(initialize_header); | |
3457 | |
3458 if (UseBiasedLocking) { | |
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3459 __ ld_ptr(RinstanceKlass, in_bytes(Klass::prototype_header_offset()), G4_scratch); |
0 | 3460 } else { |
3461 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
3462 } | |
3463 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
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3464 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
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3465 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
0 | 3466 |
3467 { | |
3468 SkipIfEqual skip_if( | |
3469 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
3470 // Trigger dtrace event | |
3471 __ push(atos); | |
3472 __ call_VM_leaf(noreg, | |
3473 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
3474 __ pop(atos); | |
3475 } | |
3476 | |
3477 // continue | |
3478 __ bind(done); | |
3479 } | |
3480 | |
3481 | |
3482 | |
3483 void TemplateTable::newarray() { | |
3484 transition(itos, atos); | |
3485 __ ldub(Lbcp, 1, O1); | |
3486 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
3487 } | |
3488 | |
3489 | |
3490 void TemplateTable::anewarray() { | |
3491 transition(itos, atos); | |
3492 __ get_constant_pool(O1); | |
3493 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
3494 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
3495 } | |
3496 | |
3497 | |
3498 void TemplateTable::arraylength() { | |
3499 transition(atos, itos); | |
3500 Label ok; | |
3501 __ verify_oop(Otos_i); | |
3502 __ tst(Otos_i); | |
3503 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
3504 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
3505 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
3506 } | |
3507 | |
3508 | |
3509 void TemplateTable::checkcast() { | |
3510 transition(atos, atos); | |
3511 Label done, is_null, quicked, cast_ok, resolved; | |
3512 Register Roffset = G1_scratch; | |
3513 Register RobjKlass = O5; | |
3514 Register RspecifiedKlass = O4; | |
3515 | |
3516 // Check for casting a NULL | |
3839 | 3517 __ br_null_short(Otos_i, Assembler::pn, is_null); |
0 | 3518 |
3519 // Get value klass in RobjKlass | |
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3520 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3521 |
3522 // Get constant pool tag | |
3523 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3524 | |
3525 // See if the checkcast has been quickened | |
3526 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3527 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3528 __ ldub(G3_scratch, Roffset, G3_scratch); |
3529 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3530 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
3531 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
3532 | |
3533 __ push_ptr(); // save receiver for result, and for GC | |
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3534 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3535 __ get_vm_result_2(RspecifiedKlass); |
0 | 3536 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
3537 | |
3839 | 3538 __ ba_short(resolved); |
0 | 3539 |
3540 // Extract target class from constant pool | |
3541 __ bind(quicked); | |
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3542 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3543 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); |
3544 __ bind(resolved); | |
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3545 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3546 |
3547 // Generate a fast subtype check. Branch to cast_ok if no | |
3548 // failure. Throw exception if failure. | |
3549 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
3550 | |
3551 // Not a subtype; so must throw exception | |
3552 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
3553 | |
3554 __ bind(cast_ok); | |
3555 | |
3556 if (ProfileInterpreter) { | |
3839 | 3557 __ ba_short(done); |
0 | 3558 } |
3559 __ bind(is_null); | |
3560 __ profile_null_seen(G3_scratch); | |
3561 __ bind(done); | |
3562 } | |
3563 | |
3564 | |
3565 void TemplateTable::instanceof() { | |
3566 Label done, is_null, quicked, resolved; | |
3567 transition(atos, itos); | |
3568 Register Roffset = G1_scratch; | |
3569 Register RobjKlass = O5; | |
3570 Register RspecifiedKlass = O4; | |
3571 | |
3572 // Check for casting a NULL | |
3839 | 3573 __ br_null_short(Otos_i, Assembler::pt, is_null); |
0 | 3574 |
3575 // Get value klass in RobjKlass | |
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3576 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3577 |
3578 // Get constant pool tag | |
3579 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3580 | |
3581 // See if the checkcast has been quickened | |
3582 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3583 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3584 __ ldub(G3_scratch, Roffset, G3_scratch); |
3585 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3586 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
3587 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
3588 | |
3589 __ push_ptr(); // save receiver for result, and for GC | |
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3590 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3591 __ get_vm_result_2(RspecifiedKlass); |
0 | 3592 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
3593 | |
3839 | 3594 __ ba_short(resolved); |
0 | 3595 |
3596 // Extract target class from constant pool | |
3597 __ bind(quicked); | |
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3598 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3599 __ get_constant_pool(Lscratch); |
3600 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
3601 __ bind(resolved); | |
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3602 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3603 |
3604 // Generate a fast subtype check. Branch to cast_ok if no | |
3605 // failure. Return 0 if failure. | |
3606 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
3607 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
3608 // Not a subtype; return 0; | |
3609 __ clr( Otos_i ); | |
3610 | |
3611 if (ProfileInterpreter) { | |
3839 | 3612 __ ba_short(done); |
0 | 3613 } |
3614 __ bind(is_null); | |
3615 __ profile_null_seen(G3_scratch); | |
3616 __ bind(done); | |
3617 } | |
3618 | |
3619 void TemplateTable::_breakpoint() { | |
3620 | |
3621 // Note: We get here even if we are single stepping.. | |
3622 // jbug inists on setting breakpoints at every bytecode | |
3623 // even if we are in single step mode. | |
3624 | |
3625 transition(vtos, vtos); | |
3626 // get the unpatched byte code | |
3627 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
3628 __ mov(O0, Lbyte_code); | |
3629 | |
3630 // post the breakpoint event | |
3631 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
3632 | |
3633 // complete the execution of original bytecode | |
3634 __ dispatch_normal(vtos); | |
3635 } | |
3636 | |
3637 | |
3638 //---------------------------------------------------------------------------------------------------- | |
3639 // Exceptions | |
3640 | |
3641 void TemplateTable::athrow() { | |
3642 transition(atos, vtos); | |
3643 | |
3644 // This works because exception is cached in Otos_i which is same as O0, | |
3645 // which is same as what throw_exception_entry_expects | |
3646 assert(Otos_i == Oexception, "see explanation above"); | |
3647 | |
3648 __ verify_oop(Otos_i); | |
3649 __ null_check(Otos_i); | |
3650 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
3651 } | |
3652 | |
3653 | |
3654 //---------------------------------------------------------------------------------------------------- | |
3655 // Synchronization | |
3656 | |
3657 | |
3658 // See frame_sparc.hpp for monitor block layout. | |
3659 // Monitor elements are dynamically allocated by growing stack as needed. | |
3660 | |
3661 void TemplateTable::monitorenter() { | |
3662 transition(atos, vtos); | |
3663 __ verify_oop(Otos_i); | |
3664 // Try to acquire a lock on the object | |
3665 // Repeat until succeeded (i.e., until | |
3666 // monitorenter returns true). | |
3667 | |
3668 { Label ok; | |
3669 __ tst(Otos_i); | |
3670 __ throw_if_not_1_x( Assembler::notZero, ok); | |
3671 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
3672 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
3673 } | |
3674 | |
3675 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
3676 | |
3677 // find a free slot in the monitor block | |
3678 | |
3679 | |
3680 // initialize entry pointer | |
3681 __ clr(O1); // points to free slot or NULL | |
3682 | |
3683 { | |
3684 Label entry, loop, exit; | |
3685 __ add( __ top_most_monitor(), O2 ); // last one to check | |
3839 | 3686 __ ba( entry ); |
0 | 3687 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
3688 | |
3689 | |
3690 __ bind( loop ); | |
3691 | |
3692 __ verify_oop(O4); // verify each monitor's oop | |
3693 __ tst(O4); // is this entry unused? | |
3694 if (VM_Version::v9_instructions_work()) | |
3695 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
3696 else { | |
3697 Label L; | |
3698 __ br( Assembler::zero, true, Assembler::pn, L ); | |
3699 __ delayed()->mov(O3, O1); // rememeber this one if match | |
3700 __ bind(L); | |
3701 } | |
3702 | |
3703 __ cmp(O4, O0); // check if current entry is for same object | |
3704 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
3705 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
3706 | |
3707 __ bind( entry ); | |
3708 | |
3709 __ cmp( O3, O2 ); | |
3710 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
3711 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
3712 | |
3713 __ bind( exit ); | |
3714 } | |
3715 | |
3716 { Label allocated; | |
3717 | |
3718 // found free slot? | |
3839 | 3719 __ br_notnull_short(O1, Assembler::pn, allocated); |
0 | 3720 |
3721 __ add_monitor_to_stack( false, O2, O3 ); | |
3722 __ mov(Lmonitors, O1); | |
3723 | |
3724 __ bind(allocated); | |
3725 } | |
3726 | |
3727 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
3728 // The object has already been poped from the stack, so the expression stack looks correct. | |
3729 __ inc(Lbcp); | |
3730 | |
3731 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
3732 __ lock_object(O1, O0); | |
3733 | |
3734 // check if there's enough space on the stack for the monitors after locking | |
3735 __ generate_stack_overflow_check(0); | |
3736 | |
3737 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
3738 __ dispatch_next(vtos); | |
3739 } | |
3740 | |
3741 | |
3742 void TemplateTable::monitorexit() { | |
3743 transition(atos, vtos); | |
3744 __ verify_oop(Otos_i); | |
3745 __ tst(Otos_i); | |
3746 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
3747 | |
3748 assert(O0 == Otos_i, "just checking"); | |
3749 | |
3750 { Label entry, loop, found; | |
3751 __ add( __ top_most_monitor(), O2 ); // last one to check | |
3839 | 3752 __ ba(entry); |
0 | 3753 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
3754 // By using a local it survives the call to the C routine. | |
3755 __ delayed()->mov( Lmonitors, Lscratch ); | |
3756 | |
3757 __ bind( loop ); | |
3758 | |
3759 __ verify_oop(O4); // verify each monitor's oop | |
3760 __ cmp(O4, O0); // check if current entry is for desired object | |
3761 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
3762 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
3763 | |
3764 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
3765 | |
3766 __ bind( entry ); | |
3767 | |
3768 __ cmp( Lscratch, O2 ); | |
3769 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
3770 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
3771 | |
3772 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
3773 __ should_not_reach_here(); | |
3774 | |
3775 __ bind(found); | |
3776 } | |
3777 __ unlock_object(O1); | |
3778 } | |
3779 | |
3780 | |
3781 //---------------------------------------------------------------------------------------------------- | |
3782 // Wide instructions | |
3783 | |
3784 void TemplateTable::wide() { | |
3785 transition(vtos, vtos); | |
3786 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
3787 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
727 | 3788 AddressLiteral ep(Interpreter::_wentry_point); |
3789 __ set(ep, G4_scratch); | |
3790 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
0 | 3791 __ jmp(G3_scratch, G0); |
3792 __ delayed()->nop(); | |
3793 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
3794 } | |
3795 | |
3796 | |
3797 //---------------------------------------------------------------------------------------------------- | |
3798 // Multi arrays | |
3799 | |
3800 void TemplateTable::multianewarray() { | |
3801 transition(vtos, atos); | |
3802 // put ndims * wordSize into Lscratch | |
3803 __ ldub( Lbcp, 3, Lscratch); | |
1506 | 3804 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
0 | 3805 // Lesp points past last_dim, so set to O1 to first_dim address |
3806 __ add( Lesp, Lscratch, O1); | |
3807 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
3808 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
3809 } | |
3810 #endif /* !CC_INTERP */ |