Mercurial > hg > truffle
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 9433:45a73cd19baa
Use the correct move instruction for register saving and restoring.
author | Roland Schatz <roland.schatz@oracle.com> |
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date | Tue, 30 Apr 2013 19:25:08 +0200 |
parents | f16e75e0cf11 |
children | f2e682ef3156 aeaca88565e6 |
rev | line source |
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0 | 1 /* |
8104 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "interpreter/interpreterRuntime.hpp" | |
28 #include "interpreter/templateTable.hpp" | |
29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
1972 | 31 #include "oops/objArrayKlass.hpp" |
32 #include "oops/oop.inline.hpp" | |
33 #include "prims/methodHandles.hpp" | |
34 #include "runtime/sharedRuntime.hpp" | |
35 #include "runtime/stubRoutines.hpp" | |
36 #include "runtime/synchronizer.hpp" | |
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37 #include "utilities/macros.hpp" |
0 | 38 |
39 #ifndef CC_INTERP | |
40 #define __ _masm-> | |
41 | |
342
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42 // Misc helpers |
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43 |
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44 // Do an oop store like *(base + index + offset) = val |
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45 // index can be noreg, |
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46 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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47 Register base, |
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48 Register index, |
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49 int offset, |
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50 Register val, |
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51 Register tmp, |
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52 BarrierSet::Name barrier, |
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53 bool precise) { |
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54 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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55 assert(index == noreg || offset == 0, "only one offset"); |
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56 switch (barrier) { |
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57 #if INCLUDE_ALL_GCS |
342
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58 case BarrierSet::G1SATBCT: |
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59 case BarrierSet::G1SATBCTLogging: |
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60 { |
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61 // Load and record the previous value. |
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62 __ g1_write_barrier_pre(base, index, offset, |
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63 noreg /* pre_val */, |
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64 tmp, true /*preserve_o_regs*/); |
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65 |
342
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66 if (index == noreg ) { |
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67 assert(Assembler::is_simm13(offset), "fix this code"); |
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68 __ store_heap_oop(val, base, offset); |
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69 } else { |
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70 __ store_heap_oop(val, base, index); |
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71 } |
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72 |
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73 // No need for post barrier if storing NULL |
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74 if (val != G0) { |
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75 if (precise) { |
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76 if (index == noreg) { |
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77 __ add(base, offset, base); |
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78 } else { |
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79 __ add(base, index, base); |
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80 } |
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81 } |
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82 __ g1_write_barrier_post(base, val, tmp); |
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83 } |
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84 } |
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85 break; |
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86 #endif // INCLUDE_ALL_GCS |
342
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87 case BarrierSet::CardTableModRef: |
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88 case BarrierSet::CardTableExtension: |
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89 { |
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90 if (index == noreg ) { |
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91 assert(Assembler::is_simm13(offset), "fix this code"); |
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92 __ store_heap_oop(val, base, offset); |
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93 } else { |
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94 __ store_heap_oop(val, base, index); |
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95 } |
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96 // No need for post barrier if storing NULL |
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97 if (val != G0) { |
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98 if (precise) { |
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99 if (index == noreg) { |
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100 __ add(base, offset, base); |
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101 } else { |
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102 __ add(base, index, base); |
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103 } |
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104 } |
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105 __ card_write_barrier_post(base, val, tmp); |
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106 } |
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107 } |
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108 break; |
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109 case BarrierSet::ModRef: |
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110 case BarrierSet::Other: |
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111 ShouldNotReachHere(); |
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112 break; |
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113 default : |
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114 ShouldNotReachHere(); |
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115 |
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116 } |
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117 } |
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118 |
0 | 119 |
120 //---------------------------------------------------------------------------------------------------- | |
121 // Platform-dependent initialization | |
122 | |
123 void TemplateTable::pd_initialize() { | |
124 // (none) | |
125 } | |
126 | |
127 | |
128 //---------------------------------------------------------------------------------------------------- | |
129 // Condition conversion | |
130 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
131 switch (cc) { | |
132 case TemplateTable::equal : return Assembler::notEqual; | |
133 case TemplateTable::not_equal : return Assembler::equal; | |
134 case TemplateTable::less : return Assembler::greaterEqual; | |
135 case TemplateTable::less_equal : return Assembler::greater; | |
136 case TemplateTable::greater : return Assembler::lessEqual; | |
137 case TemplateTable::greater_equal: return Assembler::less; | |
138 } | |
139 ShouldNotReachHere(); | |
140 return Assembler::zero; | |
141 } | |
142 | |
143 //---------------------------------------------------------------------------------------------------- | |
144 // Miscelaneous helper routines | |
145 | |
146 | |
147 Address TemplateTable::at_bcp(int offset) { | |
148 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
727 | 149 return Address(Lbcp, offset); |
0 | 150 } |
151 | |
152 | |
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153 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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154 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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155 int byte_no) { |
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156 // With sharing on, may need to test Method* flag. |
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157 if (!RewriteBytecodes) return; |
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158 Label L_patch_done; |
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159 |
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160 switch (bc) { |
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161 case Bytecodes::_fast_aputfield: |
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162 case Bytecodes::_fast_bputfield: |
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163 case Bytecodes::_fast_cputfield: |
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164 case Bytecodes::_fast_dputfield: |
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165 case Bytecodes::_fast_fputfield: |
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166 case Bytecodes::_fast_iputfield: |
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167 case Bytecodes::_fast_lputfield: |
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168 case Bytecodes::_fast_sputfield: |
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169 { |
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170 // We skip bytecode quickening for putfield instructions when |
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171 // the put_code written to the constant pool cache is zero. |
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172 // This is required so that every execution of this instruction |
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173 // calls out to InterpreterRuntime::resolve_get_put to do |
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174 // additional, required work. |
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175 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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176 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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177 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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178 __ set(bc, bc_reg); |
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179 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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180 } |
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181 break; |
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182 default: |
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183 assert(byte_no == -1, "sanity"); |
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184 if (load_bc_into_bc_reg) { |
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185 __ set(bc, bc_reg); |
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186 } |
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187 } |
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188 |
0 | 189 if (JvmtiExport::can_post_breakpoint()) { |
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190 Label L_fast_patch; |
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191 __ ldub(at_bcp(0), temp_reg); |
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192 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
0 | 193 // perform the quickening, slowly, in the bowels of the breakpoint table |
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194 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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195 __ ba_short(L_patch_done); |
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196 __ bind(L_fast_patch); |
0 | 197 } |
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198 |
0 | 199 #ifdef ASSERT |
200 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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201 Label L_okay; |
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202 __ ldub(at_bcp(0), temp_reg); |
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203 __ cmp(temp_reg, orig_bytecode); |
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204 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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205 __ delayed()->cmp(temp_reg, bc_reg); |
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206 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
0 | 207 __ delayed()->nop(); |
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208 __ stop("patching the wrong bytecode"); |
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209 __ bind(L_okay); |
0 | 210 #endif |
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211 |
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212 // patch bytecode |
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213 __ stb(bc_reg, at_bcp(0)); |
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214 __ bind(L_patch_done); |
0 | 215 } |
216 | |
217 //---------------------------------------------------------------------------------------------------- | |
218 // Individual instructions | |
219 | |
220 void TemplateTable::nop() { | |
221 transition(vtos, vtos); | |
222 // nothing to do | |
223 } | |
224 | |
225 void TemplateTable::shouldnotreachhere() { | |
226 transition(vtos, vtos); | |
227 __ stop("shouldnotreachhere bytecode"); | |
228 } | |
229 | |
230 void TemplateTable::aconst_null() { | |
231 transition(vtos, atos); | |
232 __ clr(Otos_i); | |
233 } | |
234 | |
235 | |
236 void TemplateTable::iconst(int value) { | |
237 transition(vtos, itos); | |
238 __ set(value, Otos_i); | |
239 } | |
240 | |
241 | |
242 void TemplateTable::lconst(int value) { | |
243 transition(vtos, ltos); | |
244 assert(value >= 0, "check this code"); | |
245 #ifdef _LP64 | |
246 __ set(value, Otos_l); | |
247 #else | |
248 __ set(value, Otos_l2); | |
249 __ clr( Otos_l1); | |
250 #endif | |
251 } | |
252 | |
253 | |
254 void TemplateTable::fconst(int value) { | |
255 transition(vtos, ftos); | |
256 static float zero = 0.0, one = 1.0, two = 2.0; | |
257 float* p; | |
258 switch( value ) { | |
259 default: ShouldNotReachHere(); | |
260 case 0: p = &zero; break; | |
261 case 1: p = &one; break; | |
262 case 2: p = &two; break; | |
263 } | |
727 | 264 AddressLiteral a(p); |
265 __ sethi(a, G3_scratch); | |
266 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
0 | 267 } |
268 | |
269 | |
270 void TemplateTable::dconst(int value) { | |
271 transition(vtos, dtos); | |
272 static double zero = 0.0, one = 1.0; | |
273 double* p; | |
274 switch( value ) { | |
275 default: ShouldNotReachHere(); | |
276 case 0: p = &zero; break; | |
277 case 1: p = &one; break; | |
278 } | |
727 | 279 AddressLiteral a(p); |
280 __ sethi(a, G3_scratch); | |
281 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
0 | 282 } |
283 | |
284 | |
285 // %%%%% Should factore most snippet templates across platforms | |
286 | |
287 void TemplateTable::bipush() { | |
288 transition(vtos, itos); | |
289 __ ldsb( at_bcp(1), Otos_i ); | |
290 } | |
291 | |
292 void TemplateTable::sipush() { | |
293 transition(vtos, itos); | |
294 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
295 } | |
296 | |
297 void TemplateTable::ldc(bool wide) { | |
298 transition(vtos, vtos); | |
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299 Label call_ldc, notInt, isString, notString, notClass, exit; |
0 | 300 |
301 if (wide) { | |
302 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
303 } else { | |
304 __ ldub(Lbcp, 1, O1); | |
305 } | |
306 __ get_cpool_and_tags(O0, O2); | |
307 | |
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308 const int base_offset = ConstantPool::header_size() * wordSize; |
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309 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 310 |
311 // get type from tags | |
312 __ add(O2, tags_offset, O2); | |
313 __ ldub(O2, O1, O2); | |
3839 | 314 |
315 // unresolved class? If so, must resolve | |
316 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
317 | |
318 // unresolved class in error state | |
319 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
0 | 320 |
321 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
322 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
323 __ delayed()->add(O0, base_offset, O0); | |
324 | |
325 __ bind(call_ldc); | |
326 __ set(wide, O1); | |
327 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
328 __ push(atos); | |
3839 | 329 __ ba_short(exit); |
0 | 330 |
331 __ bind(notClass); | |
332 // __ add(O0, base_offset, O0); | |
333 __ sll(O1, LogBytesPerWord, O1); | |
334 __ cmp(O2, JVM_CONSTANT_Integer); | |
335 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
336 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
337 __ ld(O0, O1, Otos_i); | |
338 __ push(itos); | |
3839 | 339 __ ba_short(exit); |
0 | 340 |
341 __ bind(notInt); | |
342 // __ cmp(O2, JVM_CONSTANT_String); | |
343 __ brx(Assembler::notEqual, true, Assembler::pt, notString); | |
344 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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345 __ bind(isString); |
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346 __ stop("string should be rewritten to fast_aldc"); |
3839 | 347 __ ba_short(exit); |
0 | 348 |
349 __ bind(notString); | |
350 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
351 __ push(ftos); | |
352 | |
353 __ bind(exit); | |
354 } | |
355 | |
1602 | 356 // Fast path for caching oop constants. |
357 // %%% We should use this to handle Class and String constants also. | |
358 // %%% It will simplify the ldc/primitive path considerably. | |
359 void TemplateTable::fast_aldc(bool wide) { | |
360 transition(vtos, atos); | |
361 | |
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362 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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363 Label resolved; |
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364 |
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365 // We are resolved if the resolved reference cache entry contains a |
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366 // non-null object (CallSite, etc.) |
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367 assert_different_registers(Otos_i, G3_scratch); |
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368 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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369 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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370 __ tst(Otos_i); |
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371 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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372 __ delayed()->set((int)bytecode(), O1); |
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373 |
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374 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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375 |
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376 // first time invocation - must resolve first |
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377 __ call_VM(Otos_i, entry, O1); |
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378 __ bind(resolved); |
1602 | 379 __ verify_oop(Otos_i); |
380 } | |
381 | |
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382 |
0 | 383 void TemplateTable::ldc2_w() { |
384 transition(vtos, vtos); | |
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385 Label Long, exit; |
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386 |
0 | 387 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
388 __ get_cpool_and_tags(O0, O2); | |
389 | |
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390 const int base_offset = ConstantPool::header_size() * wordSize; |
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391 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 392 // get type from tags |
393 __ add(O2, tags_offset, O2); | |
394 __ ldub(O2, O1, O2); | |
395 | |
396 __ sll(O1, LogBytesPerWord, O1); | |
397 __ add(O0, O1, G3_scratch); | |
398 | |
3839 | 399 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
0 | 400 // A double can be placed at word-aligned locations in the constant pool. |
401 // Check out Conversions.java for an example. | |
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402 // Also ConstantPool::header_size() is 20, which makes it very difficult |
0 | 403 // to double-align double on the constant pool. SG, 11/7/97 |
404 #ifdef _LP64 | |
405 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
406 #else | |
407 FloatRegister f = Ftos_d; | |
408 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
409 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
410 f->successor()); | |
411 #endif | |
412 __ push(dtos); | |
3839 | 413 __ ba_short(exit); |
0 | 414 |
415 __ bind(Long); | |
416 #ifdef _LP64 | |
417 __ ldx(G3_scratch, base_offset, Otos_l); | |
418 #else | |
419 __ ld(G3_scratch, base_offset, Otos_l); | |
420 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
421 #endif | |
422 __ push(ltos); | |
423 | |
424 __ bind(exit); | |
425 } | |
426 | |
427 | |
428 void TemplateTable::locals_index(Register reg, int offset) { | |
429 __ ldub( at_bcp(offset), reg ); | |
430 } | |
431 | |
432 | |
433 void TemplateTable::locals_index_wide(Register reg) { | |
434 // offset is 2, not 1, because Lbcp points to wide prefix code | |
435 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
436 } | |
437 | |
438 void TemplateTable::iload() { | |
439 transition(vtos, itos); | |
440 // Rewrite iload,iload pair into fast_iload2 | |
441 // iload,caload pair into fast_icaload | |
442 if (RewriteFrequentPairs) { | |
443 Label rewrite, done; | |
444 | |
445 // get next byte | |
446 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
447 | |
448 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
449 // last two iloads in a pair. Comparing against fast_iload means that | |
450 // the next bytecode is neither an iload or a caload, and therefore | |
451 // an iload pair. | |
3839 | 452 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
0 | 453 |
454 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
455 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
456 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
457 | |
458 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
459 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
460 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
461 | |
462 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
463 // rewrite | |
464 // G4_scratch: fast bytecode | |
465 __ bind(rewrite); | |
466 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
467 __ bind(done); | |
468 } | |
469 | |
470 // Get the local value into tos | |
471 locals_index(G3_scratch); | |
472 __ access_local_int( G3_scratch, Otos_i ); | |
473 } | |
474 | |
475 void TemplateTable::fast_iload2() { | |
476 transition(vtos, itos); | |
477 locals_index(G3_scratch); | |
478 __ access_local_int( G3_scratch, Otos_i ); | |
479 __ push_i(); | |
480 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
481 __ access_local_int( G3_scratch, Otos_i ); | |
482 } | |
483 | |
484 void TemplateTable::fast_iload() { | |
485 transition(vtos, itos); | |
486 locals_index(G3_scratch); | |
487 __ access_local_int( G3_scratch, Otos_i ); | |
488 } | |
489 | |
490 void TemplateTable::lload() { | |
491 transition(vtos, ltos); | |
492 locals_index(G3_scratch); | |
493 __ access_local_long( G3_scratch, Otos_l ); | |
494 } | |
495 | |
496 | |
497 void TemplateTable::fload() { | |
498 transition(vtos, ftos); | |
499 locals_index(G3_scratch); | |
500 __ access_local_float( G3_scratch, Ftos_f ); | |
501 } | |
502 | |
503 | |
504 void TemplateTable::dload() { | |
505 transition(vtos, dtos); | |
506 locals_index(G3_scratch); | |
507 __ access_local_double( G3_scratch, Ftos_d ); | |
508 } | |
509 | |
510 | |
511 void TemplateTable::aload() { | |
512 transition(vtos, atos); | |
513 locals_index(G3_scratch); | |
514 __ access_local_ptr( G3_scratch, Otos_i); | |
515 } | |
516 | |
517 | |
518 void TemplateTable::wide_iload() { | |
519 transition(vtos, itos); | |
520 locals_index_wide(G3_scratch); | |
521 __ access_local_int( G3_scratch, Otos_i ); | |
522 } | |
523 | |
524 | |
525 void TemplateTable::wide_lload() { | |
526 transition(vtos, ltos); | |
527 locals_index_wide(G3_scratch); | |
528 __ access_local_long( G3_scratch, Otos_l ); | |
529 } | |
530 | |
531 | |
532 void TemplateTable::wide_fload() { | |
533 transition(vtos, ftos); | |
534 locals_index_wide(G3_scratch); | |
535 __ access_local_float( G3_scratch, Ftos_f ); | |
536 } | |
537 | |
538 | |
539 void TemplateTable::wide_dload() { | |
540 transition(vtos, dtos); | |
541 locals_index_wide(G3_scratch); | |
542 __ access_local_double( G3_scratch, Ftos_d ); | |
543 } | |
544 | |
545 | |
546 void TemplateTable::wide_aload() { | |
547 transition(vtos, atos); | |
548 locals_index_wide(G3_scratch); | |
549 __ access_local_ptr( G3_scratch, Otos_i ); | |
550 __ verify_oop(Otos_i); | |
551 } | |
552 | |
553 | |
554 void TemplateTable::iaload() { | |
555 transition(itos, itos); | |
556 // Otos_i: index | |
557 // tos: array | |
558 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
559 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
560 } | |
561 | |
562 | |
563 void TemplateTable::laload() { | |
564 transition(itos, ltos); | |
565 // Otos_i: index | |
566 // O2: array | |
567 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
568 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
569 } | |
570 | |
571 | |
572 void TemplateTable::faload() { | |
573 transition(itos, ftos); | |
574 // Otos_i: index | |
575 // O2: array | |
576 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
577 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
578 } | |
579 | |
580 | |
581 void TemplateTable::daload() { | |
582 transition(itos, dtos); | |
583 // Otos_i: index | |
584 // O2: array | |
585 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
586 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
587 } | |
588 | |
589 | |
590 void TemplateTable::aaload() { | |
591 transition(itos, atos); | |
592 // Otos_i: index | |
593 // tos: array | |
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594 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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595 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
0 | 596 __ verify_oop(Otos_i); |
597 } | |
598 | |
599 | |
600 void TemplateTable::baload() { | |
601 transition(itos, itos); | |
602 // Otos_i: index | |
603 // tos: array | |
604 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
605 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
606 } | |
607 | |
608 | |
609 void TemplateTable::caload() { | |
610 transition(itos, itos); | |
611 // Otos_i: index | |
612 // tos: array | |
613 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
614 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
615 } | |
616 | |
617 void TemplateTable::fast_icaload() { | |
618 transition(vtos, itos); | |
619 // Otos_i: index | |
620 // tos: array | |
621 locals_index(G3_scratch); | |
622 __ access_local_int( G3_scratch, Otos_i ); | |
623 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
624 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
625 } | |
626 | |
627 | |
628 void TemplateTable::saload() { | |
629 transition(itos, itos); | |
630 // Otos_i: index | |
631 // tos: array | |
632 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
633 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
634 } | |
635 | |
636 | |
637 void TemplateTable::iload(int n) { | |
638 transition(vtos, itos); | |
639 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
640 } | |
641 | |
642 | |
643 void TemplateTable::lload(int n) { | |
644 transition(vtos, ltos); | |
645 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
646 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
647 } | |
648 | |
649 | |
650 void TemplateTable::fload(int n) { | |
651 transition(vtos, ftos); | |
652 assert(n < Argument::n_register_parameters, "would need more code"); | |
653 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
654 } | |
655 | |
656 | |
657 void TemplateTable::dload(int n) { | |
658 transition(vtos, dtos); | |
659 FloatRegister dst = Ftos_d; | |
660 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
661 } | |
662 | |
663 | |
664 void TemplateTable::aload(int n) { | |
665 transition(vtos, atos); | |
666 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
667 } | |
668 | |
669 | |
670 void TemplateTable::aload_0() { | |
671 transition(vtos, atos); | |
672 | |
673 // According to bytecode histograms, the pairs: | |
674 // | |
675 // _aload_0, _fast_igetfield (itos) | |
676 // _aload_0, _fast_agetfield (atos) | |
677 // _aload_0, _fast_fgetfield (ftos) | |
678 // | |
679 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
680 // bytecode checks the next bytecode and then rewrites the current | |
681 // bytecode into a pair bytecode; otherwise it rewrites the current | |
682 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
683 // | |
684 if (RewriteFrequentPairs) { | |
685 Label rewrite, done; | |
686 | |
687 // get next byte | |
688 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
689 | |
690 // do actual aload_0 | |
691 aload(0); | |
692 | |
693 // if _getfield then wait with rewrite | |
3839 | 694 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
0 | 695 |
696 // if _igetfield then rewrite to _fast_iaccess_0 | |
697 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
698 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
699 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
700 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
701 | |
702 // if _agetfield then rewrite to _fast_aaccess_0 | |
703 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
704 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
705 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
706 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
707 | |
708 // if _fgetfield then rewrite to _fast_faccess_0 | |
709 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
710 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
711 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
712 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
713 | |
714 // else rewrite to _fast_aload0 | |
715 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
716 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
717 | |
718 // rewrite | |
719 // G4_scratch: fast bytecode | |
720 __ bind(rewrite); | |
721 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
722 __ bind(done); | |
723 } else { | |
724 aload(0); | |
725 } | |
726 } | |
727 | |
728 | |
729 void TemplateTable::istore() { | |
730 transition(itos, vtos); | |
731 locals_index(G3_scratch); | |
732 __ store_local_int( G3_scratch, Otos_i ); | |
733 } | |
734 | |
735 | |
736 void TemplateTable::lstore() { | |
737 transition(ltos, vtos); | |
738 locals_index(G3_scratch); | |
739 __ store_local_long( G3_scratch, Otos_l ); | |
740 } | |
741 | |
742 | |
743 void TemplateTable::fstore() { | |
744 transition(ftos, vtos); | |
745 locals_index(G3_scratch); | |
746 __ store_local_float( G3_scratch, Ftos_f ); | |
747 } | |
748 | |
749 | |
750 void TemplateTable::dstore() { | |
751 transition(dtos, vtos); | |
752 locals_index(G3_scratch); | |
753 __ store_local_double( G3_scratch, Ftos_d ); | |
754 } | |
755 | |
756 | |
757 void TemplateTable::astore() { | |
758 transition(vtos, vtos); | |
1506 | 759 __ load_ptr(0, Otos_i); |
760 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 761 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
762 locals_index(G3_scratch); | |
1506 | 763 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 764 } |
765 | |
766 | |
767 void TemplateTable::wide_istore() { | |
768 transition(vtos, vtos); | |
769 __ pop_i(); | |
770 locals_index_wide(G3_scratch); | |
771 __ store_local_int( G3_scratch, Otos_i ); | |
772 } | |
773 | |
774 | |
775 void TemplateTable::wide_lstore() { | |
776 transition(vtos, vtos); | |
777 __ pop_l(); | |
778 locals_index_wide(G3_scratch); | |
779 __ store_local_long( G3_scratch, Otos_l ); | |
780 } | |
781 | |
782 | |
783 void TemplateTable::wide_fstore() { | |
784 transition(vtos, vtos); | |
785 __ pop_f(); | |
786 locals_index_wide(G3_scratch); | |
787 __ store_local_float( G3_scratch, Ftos_f ); | |
788 } | |
789 | |
790 | |
791 void TemplateTable::wide_dstore() { | |
792 transition(vtos, vtos); | |
793 __ pop_d(); | |
794 locals_index_wide(G3_scratch); | |
795 __ store_local_double( G3_scratch, Ftos_d ); | |
796 } | |
797 | |
798 | |
799 void TemplateTable::wide_astore() { | |
800 transition(vtos, vtos); | |
1506 | 801 __ load_ptr(0, Otos_i); |
802 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 803 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
804 locals_index_wide(G3_scratch); | |
1506 | 805 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 806 } |
807 | |
808 | |
809 void TemplateTable::iastore() { | |
810 transition(itos, vtos); | |
811 __ pop_i(O2); // index | |
812 // Otos_i: val | |
813 // O3: array | |
814 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
815 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
816 } | |
817 | |
818 | |
819 void TemplateTable::lastore() { | |
820 transition(ltos, vtos); | |
821 __ pop_i(O2); // index | |
822 // Otos_l: val | |
823 // O3: array | |
824 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
825 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
826 } | |
827 | |
828 | |
829 void TemplateTable::fastore() { | |
830 transition(ftos, vtos); | |
831 __ pop_i(O2); // index | |
832 // Ftos_f: val | |
833 // O3: array | |
834 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
835 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
836 } | |
837 | |
838 | |
839 void TemplateTable::dastore() { | |
840 transition(dtos, vtos); | |
841 __ pop_i(O2); // index | |
842 // Fos_d: val | |
843 // O3: array | |
844 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
845 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
846 } | |
847 | |
848 | |
849 void TemplateTable::aastore() { | |
850 Label store_ok, is_null, done; | |
851 transition(vtos, vtos); | |
852 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
853 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
854 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
855 // Otos_i: val | |
856 // O2: index | |
857 // O3: array | |
858 __ verify_oop(Otos_i); | |
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859 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
0 | 860 |
861 // do array store check - check for NULL value first | |
3839 | 862 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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863 |
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864 __ load_klass(O3, O4); // get array klass |
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865 __ load_klass(Otos_i, O5); // get value klass |
0 | 866 |
867 // do fast instanceof cache test | |
868 | |
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869 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
0 | 870 |
871 assert(Otos_i == O0, "just checking"); | |
872 | |
873 // Otos_i: value | |
874 // O1: addr - offset | |
875 // O2: index | |
876 // O3: array | |
877 // O4: array element klass | |
878 // O5: value klass | |
879 | |
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880 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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881 |
0 | 882 // Generate a fast subtype check. Branch to store_ok if no |
883 // failure. Throw if failure. | |
884 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
885 | |
886 // Not a subtype; so must throw exception | |
887 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
888 | |
889 // Store is OK. | |
890 __ bind(store_ok); | |
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891 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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892 |
3839 | 893 __ ba(done); |
1506 | 894 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 895 |
896 __ bind(is_null); | |
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897 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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898 |
0 | 899 __ profile_null_seen(G3_scratch); |
1506 | 900 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 901 __ bind(done); |
902 } | |
903 | |
904 | |
905 void TemplateTable::bastore() { | |
906 transition(itos, vtos); | |
907 __ pop_i(O2); // index | |
908 // Otos_i: val | |
909 // O3: array | |
910 __ index_check(O3, O2, 0, G3_scratch, O2); | |
911 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
912 } | |
913 | |
914 | |
915 void TemplateTable::castore() { | |
916 transition(itos, vtos); | |
917 __ pop_i(O2); // index | |
918 // Otos_i: val | |
919 // O3: array | |
920 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
921 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
922 } | |
923 | |
924 | |
925 void TemplateTable::sastore() { | |
926 // %%%%% Factor across platform | |
927 castore(); | |
928 } | |
929 | |
930 | |
931 void TemplateTable::istore(int n) { | |
932 transition(itos, vtos); | |
933 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
934 } | |
935 | |
936 | |
937 void TemplateTable::lstore(int n) { | |
938 transition(ltos, vtos); | |
939 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
940 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
941 | |
942 } | |
943 | |
944 | |
945 void TemplateTable::fstore(int n) { | |
946 transition(ftos, vtos); | |
947 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
948 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
949 } | |
950 | |
951 | |
952 void TemplateTable::dstore(int n) { | |
953 transition(dtos, vtos); | |
954 FloatRegister src = Ftos_d; | |
955 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
956 } | |
957 | |
958 | |
959 void TemplateTable::astore(int n) { | |
960 transition(vtos, vtos); | |
1506 | 961 __ load_ptr(0, Otos_i); |
962 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 963 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
1506 | 964 __ store_local_ptr(n, Otos_i); |
0 | 965 } |
966 | |
967 | |
968 void TemplateTable::pop() { | |
969 transition(vtos, vtos); | |
1506 | 970 __ inc(Lesp, Interpreter::stackElementSize); |
0 | 971 } |
972 | |
973 | |
974 void TemplateTable::pop2() { | |
975 transition(vtos, vtos); | |
1506 | 976 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
0 | 977 } |
978 | |
979 | |
980 void TemplateTable::dup() { | |
981 transition(vtos, vtos); | |
982 // stack: ..., a | |
983 // load a and tag | |
1506 | 984 __ load_ptr(0, Otos_i); |
985 __ push_ptr(Otos_i); | |
0 | 986 // stack: ..., a, a |
987 } | |
988 | |
989 | |
990 void TemplateTable::dup_x1() { | |
991 transition(vtos, vtos); | |
992 // stack: ..., a, b | |
1506 | 993 __ load_ptr( 1, G3_scratch); // get a |
994 __ load_ptr( 0, Otos_l1); // get b | |
995 __ store_ptr(1, Otos_l1); // put b | |
996 __ store_ptr(0, G3_scratch); // put a - like swap | |
997 __ push_ptr(Otos_l1); // push b | |
0 | 998 // stack: ..., b, a, b |
999 } | |
1000 | |
1001 | |
1002 void TemplateTable::dup_x2() { | |
1003 transition(vtos, vtos); | |
1004 // stack: ..., a, b, c | |
1005 // get c and push on stack, reuse registers | |
1506 | 1006 __ load_ptr( 0, G3_scratch); // get c |
1007 __ push_ptr(G3_scratch); // push c with tag | |
0 | 1008 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
1009 // (stack offsets n+1 now) | |
1506 | 1010 __ load_ptr( 3, Otos_l1); // get a |
1011 __ store_ptr(3, G3_scratch); // put c at 3 | |
0 | 1012 // stack: ..., c, b, c, c (a in reg) |
1506 | 1013 __ load_ptr( 2, G3_scratch); // get b |
1014 __ store_ptr(2, Otos_l1); // put a at 2 | |
0 | 1015 // stack: ..., c, a, c, c (b in reg) |
1506 | 1016 __ store_ptr(1, G3_scratch); // put b at 1 |
0 | 1017 // stack: ..., c, a, b, c |
1018 } | |
1019 | |
1020 | |
1021 void TemplateTable::dup2() { | |
1022 transition(vtos, vtos); | |
1506 | 1023 __ load_ptr(1, G3_scratch); // get a |
1024 __ load_ptr(0, Otos_l1); // get b | |
1025 __ push_ptr(G3_scratch); // push a | |
1026 __ push_ptr(Otos_l1); // push b | |
0 | 1027 // stack: ..., a, b, a, b |
1028 } | |
1029 | |
1030 | |
1031 void TemplateTable::dup2_x1() { | |
1032 transition(vtos, vtos); | |
1033 // stack: ..., a, b, c | |
1506 | 1034 __ load_ptr( 1, Lscratch); // get b |
1035 __ load_ptr( 2, Otos_l1); // get a | |
1036 __ store_ptr(2, Lscratch); // put b at a | |
0 | 1037 // stack: ..., b, b, c |
1506 | 1038 __ load_ptr( 0, G3_scratch); // get c |
1039 __ store_ptr(1, G3_scratch); // put c at b | |
0 | 1040 // stack: ..., b, c, c |
1506 | 1041 __ store_ptr(0, Otos_l1); // put a at c |
0 | 1042 // stack: ..., b, c, a |
1506 | 1043 __ push_ptr(Lscratch); // push b |
1044 __ push_ptr(G3_scratch); // push c | |
0 | 1045 // stack: ..., b, c, a, b, c |
1046 } | |
1047 | |
1048 | |
1049 // The spec says that these types can be a mixture of category 1 (1 word) | |
1050 // types and/or category 2 types (long and doubles) | |
1051 void TemplateTable::dup2_x2() { | |
1052 transition(vtos, vtos); | |
1053 // stack: ..., a, b, c, d | |
1506 | 1054 __ load_ptr( 1, Lscratch); // get c |
1055 __ load_ptr( 3, Otos_l1); // get a | |
1056 __ store_ptr(3, Lscratch); // put c at 3 | |
1057 __ store_ptr(1, Otos_l1); // put a at 1 | |
0 | 1058 // stack: ..., c, b, a, d |
1506 | 1059 __ load_ptr( 2, G3_scratch); // get b |
1060 __ load_ptr( 0, Otos_l1); // get d | |
1061 __ store_ptr(0, G3_scratch); // put b at 0 | |
1062 __ store_ptr(2, Otos_l1); // put d at 2 | |
0 | 1063 // stack: ..., c, d, a, b |
1506 | 1064 __ push_ptr(Lscratch); // push c |
1065 __ push_ptr(Otos_l1); // push d | |
0 | 1066 // stack: ..., c, d, a, b, c, d |
1067 } | |
1068 | |
1069 | |
1070 void TemplateTable::swap() { | |
1071 transition(vtos, vtos); | |
1072 // stack: ..., a, b | |
1506 | 1073 __ load_ptr( 1, G3_scratch); // get a |
1074 __ load_ptr( 0, Otos_l1); // get b | |
1075 __ store_ptr(0, G3_scratch); // put b | |
1076 __ store_ptr(1, Otos_l1); // put a | |
0 | 1077 // stack: ..., b, a |
1078 } | |
1079 | |
1080 | |
1081 void TemplateTable::iop2(Operation op) { | |
1082 transition(itos, itos); | |
1083 __ pop_i(O1); | |
1084 switch (op) { | |
1085 case add: __ add(O1, Otos_i, Otos_i); break; | |
1086 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
1087 // %%%%% Mul may not exist: better to call .mul? | |
1088 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
1506 | 1089 case _and: __ and3(O1, Otos_i, Otos_i); break; |
1090 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
1091 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
0 | 1092 case shl: __ sll(O1, Otos_i, Otos_i); break; |
1093 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
1094 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
1095 default: ShouldNotReachHere(); | |
1096 } | |
1097 } | |
1098 | |
1099 | |
1100 void TemplateTable::lop2(Operation op) { | |
1101 transition(ltos, ltos); | |
1102 __ pop_l(O2); | |
1103 switch (op) { | |
1104 #ifdef _LP64 | |
1506 | 1105 case add: __ add(O2, Otos_l, Otos_l); break; |
1106 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
1107 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
1108 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
1109 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
0 | 1110 #else |
1111 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
1112 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
1506 | 1113 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
1114 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
1115 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
0 | 1116 #endif |
1117 default: ShouldNotReachHere(); | |
1118 } | |
1119 } | |
1120 | |
1121 | |
1122 void TemplateTable::idiv() { | |
1123 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
1124 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
1125 | |
1126 transition(itos, itos); | |
1127 __ pop_i(O1); // get 1st op | |
1128 | |
1129 // Y contains upper 32 bits of result, set it to 0 or all ones | |
1130 __ wry(G0); | |
1131 __ mov(~0, G3_scratch); | |
1132 | |
1133 __ tst(O1); | |
1134 Label neg; | |
1135 __ br(Assembler::negative, true, Assembler::pn, neg); | |
1136 __ delayed()->wry(G3_scratch); | |
1137 __ bind(neg); | |
1138 | |
1139 Label ok; | |
1140 __ tst(Otos_i); | |
1141 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
1142 | |
1143 const int min_int = 0x80000000; | |
1144 Label regular; | |
1145 __ cmp(Otos_i, -1); | |
1146 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
1147 #ifdef _LP64 | |
1148 // Don't put set in delay slot | |
1149 // Set will turn into multiple instructions in 64 bit mode | |
1150 __ delayed()->nop(); | |
1151 __ set(min_int, G4_scratch); | |
1152 #else | |
1153 __ delayed()->set(min_int, G4_scratch); | |
1154 #endif | |
1155 Label done; | |
1156 __ cmp(O1, G4_scratch); | |
1157 __ br(Assembler::equal, true, Assembler::pt, done); | |
1158 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
1159 | |
1160 __ bind(regular); | |
1161 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
1162 __ bind(done); | |
1163 } | |
1164 | |
1165 | |
1166 void TemplateTable::irem() { | |
1167 transition(itos, itos); | |
1168 __ mov(Otos_i, O2); // save divisor | |
1169 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
1170 __ smul(Otos_i, O2, Otos_i); | |
1171 __ sub(O1, Otos_i, Otos_i); | |
1172 } | |
1173 | |
1174 | |
1175 void TemplateTable::lmul() { | |
1176 transition(ltos, ltos); | |
1177 __ pop_l(O2); | |
1178 #ifdef _LP64 | |
1179 __ mulx(Otos_l, O2, Otos_l); | |
1180 #else | |
1181 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
1182 #endif | |
1183 | |
1184 } | |
1185 | |
1186 | |
1187 void TemplateTable::ldiv() { | |
1188 transition(ltos, ltos); | |
1189 | |
1190 // check for zero | |
1191 __ pop_l(O2); | |
1192 #ifdef _LP64 | |
1193 __ tst(Otos_l); | |
1194 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1195 __ sdivx(O2, Otos_l, Otos_l); | |
1196 #else | |
1197 __ orcc(Otos_l1, Otos_l2, G0); | |
1198 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1199 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
1200 #endif | |
1201 } | |
1202 | |
1203 | |
1204 void TemplateTable::lrem() { | |
1205 transition(ltos, ltos); | |
1206 | |
1207 // check for zero | |
1208 __ pop_l(O2); | |
1209 #ifdef _LP64 | |
1210 __ tst(Otos_l); | |
1211 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1212 __ sdivx(O2, Otos_l, Otos_l2); | |
1213 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
1214 __ sub (O2, Otos_l2, Otos_l); | |
1215 #else | |
1216 __ orcc(Otos_l1, Otos_l2, G0); | |
1217 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1218 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
1219 #endif | |
1220 } | |
1221 | |
1222 | |
1223 void TemplateTable::lshl() { | |
1224 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
1225 | |
1226 __ pop_l(O2); // shift value in O2, O3 | |
1227 #ifdef _LP64 | |
1228 __ sllx(O2, Otos_i, Otos_l); | |
1229 #else | |
1230 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1231 #endif | |
1232 } | |
1233 | |
1234 | |
1235 void TemplateTable::lshr() { | |
1236 transition(itos, ltos); // %%%% see lshl comment | |
1237 | |
1238 __ pop_l(O2); // shift value in O2, O3 | |
1239 #ifdef _LP64 | |
1240 __ srax(O2, Otos_i, Otos_l); | |
1241 #else | |
1242 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1243 #endif | |
1244 } | |
1245 | |
1246 | |
1247 | |
1248 void TemplateTable::lushr() { | |
1249 transition(itos, ltos); // %%%% see lshl comment | |
1250 | |
1251 __ pop_l(O2); // shift value in O2, O3 | |
1252 #ifdef _LP64 | |
1253 __ srlx(O2, Otos_i, Otos_l); | |
1254 #else | |
1255 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1256 #endif | |
1257 } | |
1258 | |
1259 | |
1260 void TemplateTable::fop2(Operation op) { | |
1261 transition(ftos, ftos); | |
1262 switch (op) { | |
1263 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1264 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1265 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1266 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1267 case rem: | |
1268 assert(Ftos_f == F0, "just checking"); | |
1269 #ifdef _LP64 | |
1270 // LP64 calling conventions use F1, F3 for passing 2 floats | |
1271 __ pop_f(F1); | |
1272 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
1273 #else | |
1274 __ pop_i(O0); | |
1275 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
1276 __ ld( __ d_tmp, O1 ); | |
1277 #endif | |
1278 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
1279 assert( Ftos_f == F0, "fix this code" ); | |
1280 break; | |
1281 | |
1282 default: ShouldNotReachHere(); | |
1283 } | |
1284 } | |
1285 | |
1286 | |
1287 void TemplateTable::dop2(Operation op) { | |
1288 transition(dtos, dtos); | |
1289 switch (op) { | |
1290 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1291 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1292 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1293 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1294 case rem: | |
1295 #ifdef _LP64 | |
1296 // Pass arguments in D0, D2 | |
1297 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
1298 __ pop_d( F0 ); | |
1299 #else | |
1300 // Pass arguments in O0O1, O2O3 | |
1301 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1302 __ ldd( __ d_tmp, O2 ); | |
1303 __ pop_d(Ftos_f); | |
1304 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1305 __ ldd( __ d_tmp, O0 ); | |
1306 #endif | |
1307 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
1308 assert( Ftos_d == F0, "fix this code" ); | |
1309 break; | |
1310 | |
1311 default: ShouldNotReachHere(); | |
1312 } | |
1313 } | |
1314 | |
1315 | |
1316 void TemplateTable::ineg() { | |
1317 transition(itos, itos); | |
1318 __ neg(Otos_i); | |
1319 } | |
1320 | |
1321 | |
1322 void TemplateTable::lneg() { | |
1323 transition(ltos, ltos); | |
1324 #ifdef _LP64 | |
1325 __ sub(G0, Otos_l, Otos_l); | |
1326 #else | |
1327 __ lneg(Otos_l1, Otos_l2); | |
1328 #endif | |
1329 } | |
1330 | |
1331 | |
1332 void TemplateTable::fneg() { | |
1333 transition(ftos, ftos); | |
1334 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
1335 } | |
1336 | |
1337 | |
1338 void TemplateTable::dneg() { | |
1339 transition(dtos, dtos); | |
1340 // v8 has fnegd if source and dest are the same | |
1341 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
1342 } | |
1343 | |
1344 | |
1345 void TemplateTable::iinc() { | |
1346 transition(vtos, vtos); | |
1347 locals_index(G3_scratch); | |
1348 __ ldsb(Lbcp, 2, O2); // load constant | |
1349 __ access_local_int(G3_scratch, Otos_i); | |
1350 __ add(Otos_i, O2, Otos_i); | |
1506 | 1351 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1352 } |
1353 | |
1354 | |
1355 void TemplateTable::wide_iinc() { | |
1356 transition(vtos, vtos); | |
1357 locals_index_wide(G3_scratch); | |
1358 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
1359 __ access_local_int(G3_scratch, Otos_i); | |
1360 __ add(Otos_i, O3, Otos_i); | |
1506 | 1361 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1362 } |
1363 | |
1364 | |
1365 void TemplateTable::convert() { | |
1366 // %%%%% Factor this first part accross platforms | |
1367 #ifdef ASSERT | |
1368 TosState tos_in = ilgl; | |
1369 TosState tos_out = ilgl; | |
1370 switch (bytecode()) { | |
1371 case Bytecodes::_i2l: // fall through | |
1372 case Bytecodes::_i2f: // fall through | |
1373 case Bytecodes::_i2d: // fall through | |
1374 case Bytecodes::_i2b: // fall through | |
1375 case Bytecodes::_i2c: // fall through | |
1376 case Bytecodes::_i2s: tos_in = itos; break; | |
1377 case Bytecodes::_l2i: // fall through | |
1378 case Bytecodes::_l2f: // fall through | |
1379 case Bytecodes::_l2d: tos_in = ltos; break; | |
1380 case Bytecodes::_f2i: // fall through | |
1381 case Bytecodes::_f2l: // fall through | |
1382 case Bytecodes::_f2d: tos_in = ftos; break; | |
1383 case Bytecodes::_d2i: // fall through | |
1384 case Bytecodes::_d2l: // fall through | |
1385 case Bytecodes::_d2f: tos_in = dtos; break; | |
1386 default : ShouldNotReachHere(); | |
1387 } | |
1388 switch (bytecode()) { | |
1389 case Bytecodes::_l2i: // fall through | |
1390 case Bytecodes::_f2i: // fall through | |
1391 case Bytecodes::_d2i: // fall through | |
1392 case Bytecodes::_i2b: // fall through | |
1393 case Bytecodes::_i2c: // fall through | |
1394 case Bytecodes::_i2s: tos_out = itos; break; | |
1395 case Bytecodes::_i2l: // fall through | |
1396 case Bytecodes::_f2l: // fall through | |
1397 case Bytecodes::_d2l: tos_out = ltos; break; | |
1398 case Bytecodes::_i2f: // fall through | |
1399 case Bytecodes::_l2f: // fall through | |
1400 case Bytecodes::_d2f: tos_out = ftos; break; | |
1401 case Bytecodes::_i2d: // fall through | |
1402 case Bytecodes::_l2d: // fall through | |
1403 case Bytecodes::_f2d: tos_out = dtos; break; | |
1404 default : ShouldNotReachHere(); | |
1405 } | |
1406 transition(tos_in, tos_out); | |
1407 #endif | |
1408 | |
1409 | |
1410 // Conversion | |
1411 Label done; | |
1412 switch (bytecode()) { | |
1413 case Bytecodes::_i2l: | |
1414 #ifdef _LP64 | |
1415 // Sign extend the 32 bits | |
1416 __ sra ( Otos_i, 0, Otos_l ); | |
1417 #else | |
1418 __ addcc(Otos_i, 0, Otos_l2); | |
1419 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
1420 __ delayed()->clr(Otos_l1); | |
1421 __ set(~0, Otos_l1); | |
1422 #endif | |
1423 break; | |
1424 | |
1425 case Bytecodes::_i2f: | |
1426 __ st(Otos_i, __ d_tmp ); | |
1427 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1428 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
1429 break; | |
1430 | |
1431 case Bytecodes::_i2d: | |
1432 __ st(Otos_i, __ d_tmp); | |
1433 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1434 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
1435 break; | |
1436 | |
1437 case Bytecodes::_i2b: | |
1438 __ sll(Otos_i, 24, Otos_i); | |
1439 __ sra(Otos_i, 24, Otos_i); | |
1440 break; | |
1441 | |
1442 case Bytecodes::_i2c: | |
1443 __ sll(Otos_i, 16, Otos_i); | |
1444 __ srl(Otos_i, 16, Otos_i); | |
1445 break; | |
1446 | |
1447 case Bytecodes::_i2s: | |
1448 __ sll(Otos_i, 16, Otos_i); | |
1449 __ sra(Otos_i, 16, Otos_i); | |
1450 break; | |
1451 | |
1452 case Bytecodes::_l2i: | |
1453 #ifndef _LP64 | |
1454 __ mov(Otos_l2, Otos_i); | |
1455 #else | |
1456 // Sign-extend into the high 32 bits | |
1457 __ sra(Otos_l, 0, Otos_i); | |
1458 #endif | |
1459 break; | |
1460 | |
1461 case Bytecodes::_l2f: | |
1462 case Bytecodes::_l2d: | |
1463 __ st_long(Otos_l, __ d_tmp); | |
1464 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
1465 | |
1466 if (VM_Version::v9_instructions_work()) { | |
1467 if (bytecode() == Bytecodes::_l2f) { | |
1468 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1469 } else { | |
1470 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
1471 } | |
1472 } else { | |
1473 __ call_VM_leaf( | |
1474 Lscratch, | |
1475 bytecode() == Bytecodes::_l2f | |
1476 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
1477 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
1478 ); | |
1479 } | |
1480 break; | |
1481 | |
1482 case Bytecodes::_f2i: { | |
1483 Label isNaN; | |
1484 // result must be 0 if value is NaN; test by comparing value to itself | |
1485 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
1486 // According to the v8 manual, you have to have a non-fp instruction | |
1487 // between fcmp and fb. | |
1488 if (!VM_Version::v9_instructions_work()) { | |
1489 __ nop(); | |
1490 } | |
1491 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
1492 __ delayed()->clr(Otos_i); // NaN | |
1493 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
1494 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
1495 __ ld(__ d_tmp, Otos_i); | |
1496 __ bind(isNaN); | |
1497 } | |
1498 break; | |
1499 | |
1500 case Bytecodes::_f2l: | |
1501 // must uncache tos | |
1502 __ push_f(); | |
1503 #ifdef _LP64 | |
1504 __ pop_f(F1); | |
1505 #else | |
1506 __ pop_i(O0); | |
1507 #endif | |
1508 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
1509 break; | |
1510 | |
1511 case Bytecodes::_f2d: | |
1512 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
1513 break; | |
1514 | |
1515 case Bytecodes::_d2i: | |
1516 case Bytecodes::_d2l: | |
1517 // must uncache tos | |
1518 __ push_d(); | |
1519 #ifdef _LP64 | |
1520 // LP64 calling conventions pass first double arg in D0 | |
1521 __ pop_d( Ftos_d ); | |
1522 #else | |
1523 __ pop_i( O0 ); | |
1524 __ pop_i( O1 ); | |
1525 #endif | |
1526 __ call_VM_leaf(Lscratch, | |
1527 bytecode() == Bytecodes::_d2i | |
1528 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
1529 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
1530 break; | |
1531 | |
1532 case Bytecodes::_d2f: | |
1533 if (VM_Version::v9_instructions_work()) { | |
1534 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1535 } | |
1536 else { | |
1537 // must uncache tos | |
1538 __ push_d(); | |
1539 __ pop_i(O0); | |
1540 __ pop_i(O1); | |
1541 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
1542 } | |
1543 break; | |
1544 | |
1545 default: ShouldNotReachHere(); | |
1546 } | |
1547 __ bind(done); | |
1548 } | |
1549 | |
1550 | |
1551 void TemplateTable::lcmp() { | |
1552 transition(ltos, itos); | |
1553 | |
1554 #ifdef _LP64 | |
1555 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
1556 __ lcmp( O1, Otos_l, Otos_i ); | |
1557 #else | |
1558 __ pop_l(O2); // cmp O2,3 to O0,1 | |
1559 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
1560 #endif | |
1561 } | |
1562 | |
1563 | |
1564 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1565 | |
1566 if (is_float) __ pop_f(F2); | |
1567 else __ pop_d(F2); | |
1568 | |
1569 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
1570 | |
1571 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
1572 } | |
1573 | |
1574 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1575 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
1576 __ verify_thread(); | |
1577 | |
1578 const Register O2_bumped_count = O2; | |
1579 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
1580 | |
1581 // get (wide) offset to O1_disp | |
1582 const Register O1_disp = O1; | |
1583 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
1584 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
1585 | |
1586 // Handle all the JSR stuff here, then exit. | |
1587 // It's much shorter and cleaner than intermingling with the | |
605 | 1588 // non-JSR normal-branch stuff occurring below. |
0 | 1589 if( is_jsr ) { |
1590 // compute return address as bci in Otos_i | |
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1591 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1592 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1593 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
0 | 1594 |
1595 // Bump Lbcp to target of JSR | |
1596 __ add(Lbcp, O1_disp, Lbcp); | |
1597 // Push returnAddress for "ret" on stack | |
1506 | 1598 __ push_ptr(Otos_i); |
0 | 1599 // And away we go! |
1600 __ dispatch_next(vtos); | |
1601 return; | |
1602 } | |
1603 | |
1604 // Normal (non-jsr) branch handling | |
1605 | |
1606 // Save the current Lbcp | |
1607 const Register O0_cur_bcp = O0; | |
1608 __ mov( Lbcp, O0_cur_bcp ); | |
1609 | |
1783 | 1610 |
0 | 1611 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
1612 if ( increment_invocation_counter_for_backward_branches ) { | |
1613 Label Lforward; | |
1614 // check branch direction | |
1615 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
1616 // Bump bytecode pointer by displacement (take the branch) | |
1617 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
1618 | |
1783 | 1619 if (TieredCompilation) { |
1620 Label Lno_mdo, Loverflow; | |
1621 int increment = InvocationCounter::count_increment; | |
1622 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1623 if (ProfileInterpreter) { | |
1624 // If no method data exists, go to profile_continue. | |
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1625 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
3839 | 1626 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
1783 | 1627 |
1628 // Increment backedge counter in the MDO | |
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1629 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1630 in_bytes(InvocationCounter::counter_offset())); |
1631 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1632 Assembler::notZero, &Lforward); | |
3839 | 1633 __ ba_short(Loverflow); |
0 | 1634 } |
1783 | 1635 |
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1636 // If there's no MDO, increment counter in Method* |
1783 | 1637 __ bind(Lno_mdo); |
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1638 Address backedge_counter(Lmethod, in_bytes(Method::backedge_counter_offset()) + |
1783 | 1639 in_bytes(InvocationCounter::counter_offset())); |
1640 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1641 Assembler::notZero, &Lforward); | |
1642 __ bind(Loverflow); | |
1643 | |
1644 // notify point for loop, pass branch bytecode | |
1645 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
1646 | |
1647 // Was an OSR adapter generated? | |
1648 // O0 = osr nmethod | |
3839 | 1649 __ br_null_short(O0, Assembler::pn, Lforward); |
1783 | 1650 |
1651 // Has the nmethod been invalidated already? | |
1652 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
3839 | 1653 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
1783 | 1654 |
1655 // migrate the interpreter frame off of the stack | |
1656 | |
1657 __ mov(G2_thread, L7); | |
1658 // save nmethod | |
1659 __ mov(O0, L6); | |
1660 __ set_last_Java_frame(SP, noreg); | |
1661 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
1662 __ reset_last_Java_frame(); | |
1663 __ mov(L7, G2_thread); | |
1664 | |
1665 // move OSR nmethod to I1 | |
1666 __ mov(L6, I1); | |
1667 | |
1668 // OSR buffer to I0 | |
1669 __ mov(O0, I0); | |
1670 | |
1671 // remove the interpreter frame | |
1672 __ restore(I5_savedSP, 0, SP); | |
1673 | |
1674 // Jump to the osr code. | |
1675 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
1676 __ jmp(O2, G0); | |
1677 __ delayed()->nop(); | |
1678 | |
0 | 1679 } else { |
1783 | 1680 // Update Backedge branch separately from invocations |
1681 const Register G4_invoke_ctr = G4; | |
1682 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
1683 if (ProfileInterpreter) { | |
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1684 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
1783 | 1685 if (UseOnStackReplacement) { |
1686 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
1687 } | |
1688 } else { | |
1689 if (UseOnStackReplacement) { | |
1690 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
1691 } | |
0 | 1692 } |
1693 } | |
1694 | |
1695 __ bind(Lforward); | |
1696 } else | |
1697 // Bump bytecode pointer by displacement (take the branch) | |
1698 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
1699 | |
1700 // continue with bytecode @ target | |
1701 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
1702 // %%%%% and changing dispatch_next to dispatch_only | |
1703 __ dispatch_next(vtos); | |
1704 } | |
1705 | |
1706 | |
1707 // Note Condition in argument is TemplateTable::Condition | |
1708 // arg scope is within class scope | |
1709 | |
1710 void TemplateTable::if_0cmp(Condition cc) { | |
1711 // no pointers, integer only! | |
1712 transition(itos, vtos); | |
1713 // assume branch is more often taken than not (loops use backward branches) | |
1714 __ cmp( Otos_i, 0); | |
1715 __ if_cmp(ccNot(cc), false); | |
1716 } | |
1717 | |
1718 | |
1719 void TemplateTable::if_icmp(Condition cc) { | |
1720 transition(itos, vtos); | |
1721 __ pop_i(O1); | |
1722 __ cmp(O1, Otos_i); | |
1723 __ if_cmp(ccNot(cc), false); | |
1724 } | |
1725 | |
1726 | |
1727 void TemplateTable::if_nullcmp(Condition cc) { | |
1728 transition(atos, vtos); | |
1729 __ tst(Otos_i); | |
1730 __ if_cmp(ccNot(cc), true); | |
1731 } | |
1732 | |
1733 | |
1734 void TemplateTable::if_acmp(Condition cc) { | |
1735 transition(atos, vtos); | |
1736 __ pop_ptr(O1); | |
1737 __ verify_oop(O1); | |
1738 __ verify_oop(Otos_i); | |
1739 __ cmp(O1, Otos_i); | |
1740 __ if_cmp(ccNot(cc), true); | |
1741 } | |
1742 | |
1743 | |
1744 | |
1745 void TemplateTable::ret() { | |
1746 transition(vtos, vtos); | |
1747 locals_index(G3_scratch); | |
1748 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1749 // Otos_i contains the bci, compute the bcp from that | |
1750 | |
1751 #ifdef _LP64 | |
1752 #ifdef ASSERT | |
1753 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
1754 // the result. The return address (really a BCI) was stored with an | |
1755 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
1756 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
1757 // loaded value. | |
1758 { Label zzz ; | |
1759 __ set (65536, G3_scratch) ; | |
1760 __ cmp (Otos_i, G3_scratch) ; | |
1761 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
1762 __ delayed()->nop(); | |
1763 __ stop("BCI is in the wrong register half?"); | |
1764 __ bind (zzz) ; | |
1765 } | |
1766 #endif | |
1767 #endif | |
1768 | |
1769 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1770 | |
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1771 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1772 __ add(G3_scratch, Otos_i, G3_scratch); |
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1773 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1774 __ dispatch_next(vtos); |
1775 } | |
1776 | |
1777 | |
1778 void TemplateTable::wide_ret() { | |
1779 transition(vtos, vtos); | |
1780 locals_index_wide(G3_scratch); | |
1781 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1782 // Otos_i contains the bci, compute the bcp from that | |
1783 | |
1784 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1785 | |
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1786 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1787 __ add(G3_scratch, Otos_i, G3_scratch); |
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1788 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1789 __ dispatch_next(vtos); |
1790 } | |
1791 | |
1792 | |
1793 void TemplateTable::tableswitch() { | |
1794 transition(itos, vtos); | |
1795 Label default_case, continue_execution; | |
1796 | |
1797 // align bcp | |
1798 __ add(Lbcp, BytesPerInt, O1); | |
1799 __ and3(O1, -BytesPerInt, O1); | |
1800 // load lo, hi | |
1801 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
1802 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
1803 #ifdef _LP64 | |
1804 // Sign extend the 32 bits | |
1805 __ sra ( Otos_i, 0, Otos_i ); | |
1806 #endif /* _LP64 */ | |
1807 | |
1808 // check against lo & hi | |
1809 __ cmp( Otos_i, O2); | |
1810 __ br( Assembler::less, false, Assembler::pn, default_case); | |
1811 __ delayed()->cmp( Otos_i, O3 ); | |
1812 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
1813 // lookup dispatch offset | |
1814 __ delayed()->sub(Otos_i, O2, O2); | |
1815 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
1816 __ sll(O2, LogBytesPerInt, O2); | |
1817 __ add(O2, 3 * BytesPerInt, O2); | |
3839 | 1818 __ ba(continue_execution); |
0 | 1819 __ delayed()->ld(O1, O2, O2); |
1820 // handle default | |
1821 __ bind(default_case); | |
1822 __ profile_switch_default(O3); | |
1823 __ ld(O1, 0, O2); // get default offset | |
1824 // continue execution | |
1825 __ bind(continue_execution); | |
1826 __ add(Lbcp, O2, Lbcp); | |
1827 __ dispatch_next(vtos); | |
1828 } | |
1829 | |
1830 | |
1831 void TemplateTable::lookupswitch() { | |
1832 transition(itos, itos); | |
1833 __ stop("lookupswitch bytecode should have been rewritten"); | |
1834 } | |
1835 | |
1836 void TemplateTable::fast_linearswitch() { | |
1837 transition(itos, vtos); | |
1838 Label loop_entry, loop, found, continue_execution; | |
1839 // align bcp | |
1840 __ add(Lbcp, BytesPerInt, O1); | |
1841 __ and3(O1, -BytesPerInt, O1); | |
1842 // set counter | |
1843 __ ld(O1, BytesPerInt, O2); | |
1844 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
1845 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
3839 | 1846 __ ba(loop_entry); |
0 | 1847 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
1848 | |
1849 // table search | |
1850 __ bind(loop); | |
1851 __ cmp(O4, Otos_i); | |
1852 __ br(Assembler::equal, true, Assembler::pn, found); | |
1853 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
1854 __ inc(O3, 2 * BytesPerInt); | |
1855 | |
1856 __ bind(loop_entry); | |
1857 __ cmp(O2, O3); | |
1858 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
1859 __ delayed()->ld(O3, 0, O4); | |
1860 | |
1861 // default case | |
1862 __ ld(O1, 0, O4); // get default offset | |
1863 if (ProfileInterpreter) { | |
1864 __ profile_switch_default(O3); | |
3839 | 1865 __ ba_short(continue_execution); |
0 | 1866 } |
1867 | |
1868 // entry found -> get offset | |
1869 __ bind(found); | |
1870 if (ProfileInterpreter) { | |
1871 __ sub(O3, O1, O3); | |
1872 __ sub(O3, 2*BytesPerInt, O3); | |
1873 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
1874 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
1875 | |
1876 __ bind(continue_execution); | |
1877 } | |
1878 __ add(Lbcp, O4, Lbcp); | |
1879 __ dispatch_next(vtos); | |
1880 } | |
1881 | |
1882 | |
1883 void TemplateTable::fast_binaryswitch() { | |
1884 transition(itos, vtos); | |
1885 // Implementation using the following core algorithm: (copied from Intel) | |
1886 // | |
1887 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1888 // // Binary search according to "Methodik des Programmierens" by | |
1889 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1890 // int i = 0; | |
1891 // int j = n; | |
1892 // while (i+1 < j) { | |
1893 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1894 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1895 // // where a stands for the array and assuming that the (inexisting) | |
1896 // // element a[n] is infinitely big. | |
1897 // int h = (i + j) >> 1; | |
1898 // // i < h < j | |
1899 // if (key < array[h].fast_match()) { | |
1900 // j = h; | |
1901 // } else { | |
1902 // i = h; | |
1903 // } | |
1904 // } | |
1905 // // R: a[i] <= key < a[i+1] or Q | |
1906 // // (i.e., if key is within array, i is the correct index) | |
1907 // return i; | |
1908 // } | |
1909 | |
1910 // register allocation | |
1911 assert(Otos_i == O0, "alias checking"); | |
1912 const Register Rkey = Otos_i; // already set (tosca) | |
1913 const Register Rarray = O1; | |
1914 const Register Ri = O2; | |
1915 const Register Rj = O3; | |
1916 const Register Rh = O4; | |
1917 const Register Rscratch = O5; | |
1918 | |
1919 const int log_entry_size = 3; | |
1920 const int entry_size = 1 << log_entry_size; | |
1921 | |
1922 Label found; | |
1923 // Find Array start | |
1924 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
1925 __ and3(Rarray, -BytesPerInt, Rarray); | |
1926 // initialize i & j (in delay slot) | |
1927 __ clr( Ri ); | |
1928 | |
1929 // and start | |
1930 Label entry; | |
3839 | 1931 __ ba(entry); |
0 | 1932 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
1933 // (Rj is already in the native byte-ordering.) | |
1934 | |
1935 // binary search loop | |
1936 { Label loop; | |
1937 __ bind( loop ); | |
1938 // int h = (i + j) >> 1; | |
1939 __ sra( Rh, 1, Rh ); | |
1940 // if (key < array[h].fast_match()) { | |
1941 // j = h; | |
1942 // } else { | |
1943 // i = h; | |
1944 // } | |
1945 __ sll( Rh, log_entry_size, Rscratch ); | |
1946 __ ld( Rarray, Rscratch, Rscratch ); | |
1947 // (Rscratch is already in the native byte-ordering.) | |
1948 __ cmp( Rkey, Rscratch ); | |
1949 if ( VM_Version::v9_instructions_work() ) { | |
1950 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
1951 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
1952 } | |
1953 else { | |
1954 Label end_of_if; | |
1955 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
1956 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
1957 __ mov( Rh, Ri ); // else i = h | |
1958 __ bind(end_of_if); // } | |
1959 } | |
1960 | |
1961 // while (i+1 < j) | |
1962 __ bind( entry ); | |
1963 __ add( Ri, 1, Rscratch ); | |
1964 __ cmp(Rscratch, Rj); | |
1965 __ br( Assembler::less, true, Assembler::pt, loop ); | |
1966 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
1967 } | |
1968 | |
1969 // end of binary search, result index is i (must check again!) | |
1970 Label default_case; | |
1971 Label continue_execution; | |
1972 if (ProfileInterpreter) { | |
1973 __ mov( Ri, Rh ); // Save index in i for profiling | |
1974 } | |
1975 __ sll( Ri, log_entry_size, Ri ); | |
1976 __ ld( Rarray, Ri, Rscratch ); | |
1977 // (Rscratch is already in the native byte-ordering.) | |
1978 __ cmp( Rkey, Rscratch ); | |
1979 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
1980 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
1981 | |
1982 // entry found -> j = offset | |
1983 __ inc( Ri, BytesPerInt ); | |
1984 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
1985 __ ld( Rarray, Ri, Rj ); | |
1986 // (Rj is already in the native byte-ordering.) | |
1987 | |
1988 if (ProfileInterpreter) { | |
3839 | 1989 __ ba_short(continue_execution); |
0 | 1990 } |
1991 | |
1992 __ bind(default_case); // fall through (if not profiling) | |
1993 __ profile_switch_default(Ri); | |
1994 | |
1995 __ bind(continue_execution); | |
1996 __ add( Lbcp, Rj, Lbcp ); | |
1997 __ dispatch_next( vtos ); | |
1998 } | |
1999 | |
2000 | |
2001 void TemplateTable::_return(TosState state) { | |
2002 transition(state, state); | |
2003 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
2004 | |
2005 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2006 assert(state == vtos, "only valid state"); | |
2007 __ mov(G0, G3_scratch); | |
2008 __ access_local_ptr(G3_scratch, Otos_i); | |
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2009 __ load_klass(Otos_i, O2); |
0 | 2010 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2011 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
0 | 2012 __ andcc(G3, O2, G0); |
2013 Label skip_register_finalizer; | |
2014 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
2015 __ delayed()->nop(); | |
2016 | |
2017 // Call out to do finalizer registration | |
2018 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
2019 | |
2020 __ bind(skip_register_finalizer); | |
2021 } | |
2022 | |
2023 __ remove_activation(state, /* throw_monitor_exception */ true); | |
2024 | |
2025 // The caller's SP was adjusted upon method entry to accomodate | |
2026 // the callee's non-argument locals. Undo that adjustment. | |
2027 __ ret(); // return to caller | |
2028 __ delayed()->restore(I5_savedSP, G0, SP); | |
2029 } | |
2030 | |
2031 | |
2032 // ---------------------------------------------------------------------------- | |
2033 // Volatile variables demand their effects be made known to all CPU's in | |
2034 // order. Store buffers on most chips allow reads & writes to reorder; the | |
2035 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
2036 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
2037 // reorder volatile references, the hardware also must not reorder them). | |
2038 // | |
2039 // According to the new Java Memory Model (JMM): | |
2040 // (1) All volatiles are serialized wrt to each other. | |
2041 // ALSO reads & writes act as aquire & release, so: | |
2042 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
2043 // the read float up to before the read. It's OK for non-volatile memory refs | |
2044 // that happen before the volatile read to float down below it. | |
2045 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
2046 // that happen BEFORE the write float down to after the write. It's OK for | |
2047 // non-volatile memory refs that happen after the volatile write to float up | |
2048 // before it. | |
2049 // | |
2050 // We only put in barriers around volatile refs (they are expensive), not | |
2051 // _between_ memory refs (that would require us to track the flavor of the | |
2052 // previous memory refs). Requirements (2) and (3) require some barriers | |
2053 // before volatile stores and after volatile loads. These nearly cover | |
2054 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
2055 // case is placed after volatile-stores although it could just as well go | |
2056 // before volatile-loads. | |
2057 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
2058 // Helper function to insert a is-volatile test and memory barrier | |
2059 // All current sparc implementations run in TSO, needing only StoreLoad | |
2060 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
2061 __ membar( order_constraint ); | |
2062 } | |
2063 | |
2064 // ---------------------------------------------------------------------------- | |
1565 | 2065 void TemplateTable::resolve_cache_and_index(int byte_no, |
2066 Register Rcache, | |
2067 Register index, | |
2068 size_t index_size) { | |
0 | 2069 // Depends on cpCacheOop layout! |
2070 Label resolved; | |
2071 | |
1565 | 2072 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2073 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2074 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2075 __ br(Assembler::equal, false, Assembler::pt, resolved); |
1503 | 2076 __ delayed()->set((int)bytecode(), O1); |
0 | 2077 |
2078 address entry; | |
2079 switch (bytecode()) { | |
2080 case Bytecodes::_getstatic : // fall through | |
2081 case Bytecodes::_putstatic : // fall through | |
2082 case Bytecodes::_getfield : // fall through | |
2083 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
2084 case Bytecodes::_invokevirtual : // fall through | |
2085 case Bytecodes::_invokespecial : // fall through | |
2086 case Bytecodes::_invokestatic : // fall through | |
2087 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2088 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
1503 | 2089 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2090 default: |
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2091 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2092 break; |
0 | 2093 } |
2094 // first time invocation - must resolve first | |
2095 __ call_VM(noreg, entry, O1); | |
2096 // Update registers with resolved info | |
1565 | 2097 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2098 __ bind(resolved); |
2099 } | |
2100 | |
2101 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2102 Register method, |
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2103 Register itable_index, |
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2104 Register flags, |
0 | 2105 bool is_invokevirtual, |
1565 | 2106 bool is_invokevfinal, |
2107 bool is_invokedynamic) { | |
0 | 2108 // Uses both G3_scratch and G4_scratch |
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2109 Register cache = G3_scratch; |
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2110 Register index = G4_scratch; |
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2111 assert_different_registers(cache, method, itable_index); |
0 | 2112 |
2113 // determine constant pool cache field offsets | |
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2114 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2115 const int method_offset = in_bytes( |
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2116 ConstantPoolCache::base_offset() + |
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2117 ((byte_no == f2_byte) |
0 | 2118 ? ConstantPoolCacheEntry::f2_offset() |
2119 : ConstantPoolCacheEntry::f1_offset() | |
2120 ) | |
2121 ); | |
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2122 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2123 ConstantPoolCacheEntry::flags_offset()); |
2124 // access constant pool cache fields | |
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2125 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2126 ConstantPoolCacheEntry::f2_offset()); |
2127 | |
2128 if (is_invokevfinal) { | |
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2129 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2130 __ ld_ptr(Address(cache, method_offset), method); |
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2131 } else { |
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2132 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2133 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2134 __ ld_ptr(Address(cache, method_offset), method); |
0 | 2135 } |
2136 | |
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2137 if (itable_index != noreg) { |
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2138 // pick up itable or appendix index from f2 also: |
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2139 __ ld_ptr(Address(cache, index_offset), itable_index); |
0 | 2140 } |
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2141 __ ld_ptr(Address(cache, flags_offset), flags); |
0 | 2142 } |
2143 | |
2144 // The Rcache register must be set before call | |
2145 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
2146 Register Rcache, | |
2147 Register index, | |
2148 Register Roffset, | |
2149 Register Rflags, | |
2150 bool is_static) { | |
2151 assert_different_registers(Rcache, Rflags, Roffset); | |
2152 | |
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2153 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2154 |
727 | 2155 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
2156 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
0 | 2157 if (is_static) { |
727 | 2158 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2159 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2160 __ ld_ptr( Robj, mirror_offset, Robj); |
0 | 2161 } |
2162 } | |
2163 | |
2164 // The registers Rcache and index expected to be set before call. | |
2165 // Correct values of the Rcache and index registers are preserved. | |
2166 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
2167 Register index, | |
2168 bool is_static, | |
2169 bool has_tos) { | |
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2170 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2171 |
2172 if (JvmtiExport::can_post_field_access()) { | |
2173 // Check to see if a field access watch has been set before we take | |
2174 // the time to call into the VM. | |
2175 Label Label1; | |
2176 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2177 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
0 | 2178 __ load_contents(get_field_access_count_addr, G1_scratch); |
3839 | 2179 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
0 | 2180 |
2181 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
2182 | |
2183 if (is_static) { | |
2184 __ clr(Otos_i); | |
2185 } else { | |
2186 if (has_tos) { | |
2187 // save object pointer before call_VM() clobbers it | |
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2188 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
0 | 2189 } else { |
2190 // Load top of stack (do not pop the value off the stack); | |
2191 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
2192 } | |
2193 __ verify_oop(Otos_i); | |
2194 } | |
2195 // Otos_i: object pointer or NULL if static | |
2196 // Rcache: cache entry pointer | |
2197 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
2198 Otos_i, Rcache); | |
2199 if (!is_static && has_tos) { | |
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2200 __ pop_ptr(Otos_i); // restore object pointer |
0 | 2201 __ verify_oop(Otos_i); |
2202 } | |
2203 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2204 __ bind(Label1); | |
2205 } | |
2206 } | |
2207 | |
2208 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2209 transition(vtos, vtos); | |
2210 | |
2211 Register Rcache = G3_scratch; | |
2212 Register index = G4_scratch; | |
2213 Register Rclass = Rcache; | |
2214 Register Roffset= G4_scratch; | |
2215 Register Rflags = G1_scratch; | |
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2216 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2217 |
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2218 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2219 jvmti_post_field_access(Rcache, index, is_static, false); |
2220 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2221 | |
2222 if (!is_static) { | |
2223 pop_and_check_object(Rclass); | |
2224 } else { | |
2225 __ verify_oop(Rclass); | |
2226 } | |
2227 | |
2228 Label exit; | |
2229 | |
2230 Assembler::Membar_mask_bits membar_bits = | |
2231 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2232 | |
2233 if (__ membar_has_effect(membar_bits)) { | |
2234 // Get volatile flag | |
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2235 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2236 __ and3(Rflags, Lscratch, Lscratch); |
2237 } | |
2238 | |
2239 Label checkVolatile; | |
2240 | |
2241 // compute field type | |
2242 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2243 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2244 // Make sure we don't need to mask Rflags after the above shift |
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2245 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2246 |
2247 // Check atos before itos for getstatic, more likely (in Queens at least) | |
2248 __ cmp(Rflags, atos); | |
2249 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
2250 __ delayed() ->cmp(Rflags, itos); | |
2251 | |
2252 // atos | |
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2253 __ load_heap_oop(Rclass, Roffset, Otos_i); |
0 | 2254 __ verify_oop(Otos_i); |
2255 __ push(atos); | |
2256 if (!is_static) { | |
2257 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
2258 } | |
3839 | 2259 __ ba(checkVolatile); |
0 | 2260 __ delayed()->tst(Lscratch); |
2261 | |
2262 __ bind(notObj); | |
2263 | |
2264 // cmp(Rflags, itos); | |
2265 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
2266 __ delayed() ->cmp(Rflags, ltos); | |
2267 | |
2268 // itos | |
2269 __ ld(Rclass, Roffset, Otos_i); | |
2270 __ push(itos); | |
2271 if (!is_static) { | |
2272 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
2273 } | |
3839 | 2274 __ ba(checkVolatile); |
0 | 2275 __ delayed()->tst(Lscratch); |
2276 | |
2277 __ bind(notInt); | |
2278 | |
2279 // cmp(Rflags, ltos); | |
2280 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
2281 __ delayed() ->cmp(Rflags, btos); | |
2282 | |
2283 // ltos | |
2284 // load must be atomic | |
2285 __ ld_long(Rclass, Roffset, Otos_l); | |
2286 __ push(ltos); | |
2287 if (!is_static) { | |
2288 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
2289 } | |
3839 | 2290 __ ba(checkVolatile); |
0 | 2291 __ delayed()->tst(Lscratch); |
2292 | |
2293 __ bind(notLong); | |
2294 | |
2295 // cmp(Rflags, btos); | |
2296 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
2297 __ delayed() ->cmp(Rflags, ctos); | |
2298 | |
2299 // btos | |
2300 __ ldsb(Rclass, Roffset, Otos_i); | |
2301 __ push(itos); | |
2302 if (!is_static) { | |
2303 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
2304 } | |
3839 | 2305 __ ba(checkVolatile); |
0 | 2306 __ delayed()->tst(Lscratch); |
2307 | |
2308 __ bind(notByte); | |
2309 | |
2310 // cmp(Rflags, ctos); | |
2311 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
2312 __ delayed() ->cmp(Rflags, stos); | |
2313 | |
2314 // ctos | |
2315 __ lduh(Rclass, Roffset, Otos_i); | |
2316 __ push(itos); | |
2317 if (!is_static) { | |
2318 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
2319 } | |
3839 | 2320 __ ba(checkVolatile); |
0 | 2321 __ delayed()->tst(Lscratch); |
2322 | |
2323 __ bind(notChar); | |
2324 | |
2325 // cmp(Rflags, stos); | |
2326 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
2327 __ delayed() ->cmp(Rflags, ftos); | |
2328 | |
2329 // stos | |
2330 __ ldsh(Rclass, Roffset, Otos_i); | |
2331 __ push(itos); | |
2332 if (!is_static) { | |
2333 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
2334 } | |
3839 | 2335 __ ba(checkVolatile); |
0 | 2336 __ delayed()->tst(Lscratch); |
2337 | |
2338 __ bind(notShort); | |
2339 | |
2340 | |
2341 // cmp(Rflags, ftos); | |
2342 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
2343 __ delayed() ->tst(Lscratch); | |
2344 | |
2345 // ftos | |
2346 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
2347 __ push(ftos); | |
2348 if (!is_static) { | |
2349 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
2350 } | |
3839 | 2351 __ ba(checkVolatile); |
0 | 2352 __ delayed()->tst(Lscratch); |
2353 | |
2354 __ bind(notFloat); | |
2355 | |
2356 | |
2357 // dtos | |
2358 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
2359 __ push(dtos); | |
2360 if (!is_static) { | |
2361 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
2362 } | |
2363 | |
2364 __ bind(checkVolatile); | |
2365 if (__ membar_has_effect(membar_bits)) { | |
2366 // __ tst(Lscratch); executed in delay slot | |
2367 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2368 __ delayed()->nop(); | |
2369 volatile_barrier(membar_bits); | |
2370 } | |
2371 | |
2372 __ bind(exit); | |
2373 } | |
2374 | |
2375 | |
2376 void TemplateTable::getfield(int byte_no) { | |
2377 getfield_or_static(byte_no, false); | |
2378 } | |
2379 | |
2380 void TemplateTable::getstatic(int byte_no) { | |
2381 getfield_or_static(byte_no, true); | |
2382 } | |
2383 | |
2384 | |
2385 void TemplateTable::fast_accessfield(TosState state) { | |
2386 transition(atos, state); | |
2387 Register Rcache = G3_scratch; | |
2388 Register index = G4_scratch; | |
2389 Register Roffset = G4_scratch; | |
2390 Register Rflags = Rcache; | |
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2391 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2392 |
2393 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2394 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
2395 | |
727 | 2396 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2397 |
2398 __ null_check(Otos_i); | |
2399 __ verify_oop(Otos_i); | |
2400 | |
2401 Label exit; | |
2402 | |
2403 Assembler::Membar_mask_bits membar_bits = | |
2404 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2405 if (__ membar_has_effect(membar_bits)) { | |
2406 // Get volatile flag | |
727 | 2407 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2408 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2409 } |
2410 | |
2411 switch (bytecode()) { | |
2412 case Bytecodes::_fast_bgetfield: | |
2413 __ ldsb(Otos_i, Roffset, Otos_i); | |
2414 break; | |
2415 case Bytecodes::_fast_cgetfield: | |
2416 __ lduh(Otos_i, Roffset, Otos_i); | |
2417 break; | |
2418 case Bytecodes::_fast_sgetfield: | |
2419 __ ldsh(Otos_i, Roffset, Otos_i); | |
2420 break; | |
2421 case Bytecodes::_fast_igetfield: | |
2422 __ ld(Otos_i, Roffset, Otos_i); | |
2423 break; | |
2424 case Bytecodes::_fast_lgetfield: | |
2425 __ ld_long(Otos_i, Roffset, Otos_l); | |
2426 break; | |
2427 case Bytecodes::_fast_fgetfield: | |
2428 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
2429 break; | |
2430 case Bytecodes::_fast_dgetfield: | |
2431 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
2432 break; | |
2433 case Bytecodes::_fast_agetfield: | |
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2434 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
0 | 2435 break; |
2436 default: | |
2437 ShouldNotReachHere(); | |
2438 } | |
2439 | |
2440 if (__ membar_has_effect(membar_bits)) { | |
2441 __ btst(Lscratch, Rflags); | |
2442 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2443 __ delayed()->nop(); | |
2444 volatile_barrier(membar_bits); | |
2445 __ bind(exit); | |
2446 } | |
2447 | |
2448 if (state == atos) { | |
2449 __ verify_oop(Otos_i); // does not blow flags! | |
2450 } | |
2451 } | |
2452 | |
2453 void TemplateTable::jvmti_post_fast_field_mod() { | |
2454 if (JvmtiExport::can_post_field_modification()) { | |
2455 // Check to see if a field modification watch has been set before we take | |
2456 // the time to call into the VM. | |
2457 Label done; | |
727 | 2458 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2459 __ load_contents(get_field_modification_count_addr, G4_scratch); |
3839 | 2460 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
0 | 2461 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
2462 __ verify_oop(G4_scratch); | |
2463 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
2464 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
2465 // Save tos values before call_VM() clobbers them. Since we have | |
2466 // to do it for every data type, we use the saved values as the | |
2467 // jvalue object. | |
2468 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
2469 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
2470 case Bytecodes::_fast_bputfield: // fall through | |
2471 case Bytecodes::_fast_sputfield: // fall through | |
2472 case Bytecodes::_fast_cputfield: // fall through | |
2473 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
2474 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
2475 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
2476 // get words in right order for use as jvalue object | |
2477 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
2478 } | |
2479 // setup pointer to jvalue object | |
2480 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
2481 // G4_scratch: object pointer | |
2482 // G1_scratch: cache entry pointer | |
2483 // G3_scratch: jvalue object on the stack | |
2484 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
2485 switch (bytecode()) { // restore tos values | |
2486 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
2487 case Bytecodes::_fast_bputfield: // fall through | |
2488 case Bytecodes::_fast_sputfield: // fall through | |
2489 case Bytecodes::_fast_cputfield: // fall through | |
2490 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
2491 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
2492 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
2493 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
2494 } | |
2495 __ bind(done); | |
2496 } | |
2497 } | |
2498 | |
2499 // The registers Rcache and index expected to be set before call. | |
2500 // The function may destroy various registers, just not the Rcache and index registers. | |
2501 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2502 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2503 |
2504 if (JvmtiExport::can_post_field_modification()) { | |
2505 // Check to see if a field modification watch has been set before we take | |
2506 // the time to call into the VM. | |
2507 Label Label1; | |
2508 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2509 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2510 __ load_contents(get_field_modification_count_addr, G1_scratch); |
3839 | 2511 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
0 | 2512 |
2513 // The Rcache and index registers have been already set. | |
2514 // This allows to eliminate this call but the Rcache and index | |
2515 // registers must be correspondingly used after this line. | |
2516 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
2517 | |
2518 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
2519 if (is_static) { | |
2520 // Life is simple. Null out the object pointer. | |
2521 __ clr(G4_scratch); | |
2522 } else { | |
2523 Register Rflags = G1_scratch; | |
2524 // Life is harder. The stack holds the value on top, followed by the | |
2525 // object. We don't know the size of the value, though; it could be | |
2526 // one or two words depending on its type. As a result, we must find | |
2527 // the type to determine where the object is. | |
2528 | |
2529 Label two_word, valsizeknown; | |
727 | 2530 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2531 __ mov(Lesp, G4_scratch); |
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2532 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2533 // Make sure we don't need to mask Rflags after the above shift |
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2534 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2535 __ cmp(Rflags, ltos); |
2536 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2537 __ delayed()->cmp(Rflags, dtos); | |
2538 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2539 __ delayed()->nop(); | |
2540 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
3839 | 2541 __ ba_short(valsizeknown); |
0 | 2542 __ bind(two_word); |
2543 | |
2544 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
2545 | |
2546 __ bind(valsizeknown); | |
2547 // setup object pointer | |
2548 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
2549 __ verify_oop(G4_scratch); | |
2550 } | |
2551 // setup pointer to jvalue object | |
2552 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
2553 // G4_scratch: object pointer or NULL if static | |
2554 // G3_scratch: cache entry pointer | |
2555 // G1_scratch: jvalue object on the stack | |
2556 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
2557 G4_scratch, G3_scratch, G1_scratch); | |
2558 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2559 __ bind(Label1); | |
2560 } | |
2561 } | |
2562 | |
2563 void TemplateTable::pop_and_check_object(Register r) { | |
2564 __ pop_ptr(r); | |
2565 __ null_check(r); // for field access must check obj. | |
2566 __ verify_oop(r); | |
2567 } | |
2568 | |
2569 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2570 transition(vtos, vtos); | |
2571 Register Rcache = G3_scratch; | |
2572 Register index = G4_scratch; | |
2573 Register Rclass = Rcache; | |
2574 Register Roffset= G4_scratch; | |
2575 Register Rflags = G1_scratch; | |
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2576 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2577 |
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2578 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2579 jvmti_post_field_mod(Rcache, index, is_static); |
2580 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2581 | |
2582 Assembler::Membar_mask_bits read_bits = | |
2583 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2584 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2585 | |
2586 Label notVolatile, checkVolatile, exit; | |
2587 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
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2588 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2589 __ and3(Rflags, Lscratch, Lscratch); |
2590 | |
2591 if (__ membar_has_effect(read_bits)) { | |
3839 | 2592 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2593 volatile_barrier(read_bits); |
2594 __ bind(notVolatile); | |
2595 } | |
2596 } | |
2597 | |
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2598 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2599 // Make sure we don't need to mask Rflags after the above shift |
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2600 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2601 |
2602 // compute field type | |
2603 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
2604 | |
2605 if (is_static) { | |
2606 // putstatic with object type most likely, check that first | |
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2607 __ cmp(Rflags, atos); |
0 | 2608 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2609 __ delayed()->cmp(Rflags, itos); |
0 | 2610 |
2611 // atos | |
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2612 { |
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2613 __ pop_ptr(); |
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2614 __ verify_oop(Otos_i); |
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2615 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2616 __ ba(checkVolatile); |
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2617 __ delayed()->tst(Lscratch); |
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2618 } |
0 | 2619 |
2620 __ bind(notObj); | |
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2621 // cmp(Rflags, itos); |
0 | 2622 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2623 __ delayed()->cmp(Rflags, btos); |
0 | 2624 |
2625 // itos | |
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2626 { |
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2627 __ pop_i(); |
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2628 __ st(Otos_i, Rclass, Roffset); |
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2629 __ ba(checkVolatile); |
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2630 __ delayed()->tst(Lscratch); |
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2631 } |
0 | 2632 |
2633 __ bind(notInt); | |
2634 } else { | |
2635 // putfield with int type most likely, check that first | |
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2636 __ cmp(Rflags, itos); |
0 | 2637 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2638 __ delayed()->cmp(Rflags, atos); |
0 | 2639 |
2640 // itos | |
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2641 { |
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2642 __ pop_i(); |
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2643 pop_and_check_object(Rclass); |
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2644 __ st(Otos_i, Rclass, Roffset); |
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2645 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
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2646 __ ba(checkVolatile); |
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2647 __ delayed()->tst(Lscratch); |
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2648 } |
0 | 2649 |
2650 __ bind(notInt); | |
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2651 // cmp(Rflags, atos); |
0 | 2652 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2653 __ delayed()->cmp(Rflags, btos); |
0 | 2654 |
2655 // atos | |
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2656 { |
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2657 __ pop_ptr(); |
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2658 pop_and_check_object(Rclass); |
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2659 __ verify_oop(Otos_i); |
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2660 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2661 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
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2662 __ ba(checkVolatile); |
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2663 __ delayed()->tst(Lscratch); |
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2664 } |
0 | 2665 |
2666 __ bind(notObj); | |
2667 } | |
2668 | |
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2669 // cmp(Rflags, btos); |
0 | 2670 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
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2671 __ delayed()->cmp(Rflags, ltos); |
0 | 2672 |
2673 // btos | |
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2674 { |
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2675 __ pop_i(); |
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2676 if (!is_static) pop_and_check_object(Rclass); |
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2677 __ stb(Otos_i, Rclass, Roffset); |
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2678 if (!is_static) { |
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2679 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
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2680 } |
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2681 __ ba(checkVolatile); |
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2682 __ delayed()->tst(Lscratch); |
0 | 2683 } |
2684 | |
2685 __ bind(notByte); | |
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2686 // cmp(Rflags, ltos); |
0 | 2687 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
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2688 __ delayed()->cmp(Rflags, ctos); |
0 | 2689 |
2690 // ltos | |
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2691 { |
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2692 __ pop_l(); |
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2693 if (!is_static) pop_and_check_object(Rclass); |
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2694 __ st_long(Otos_l, Rclass, Roffset); |
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2695 if (!is_static) { |
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2696 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
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2697 } |
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2698 __ ba(checkVolatile); |
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2699 __ delayed()->tst(Lscratch); |
0 | 2700 } |
2701 | |
2702 __ bind(notLong); | |
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2703 // cmp(Rflags, ctos); |
0 | 2704 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
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2705 __ delayed()->cmp(Rflags, stos); |
0 | 2706 |
2707 // ctos (char) | |
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2708 { |
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2709 __ pop_i(); |
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2710 if (!is_static) pop_and_check_object(Rclass); |
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2711 __ sth(Otos_i, Rclass, Roffset); |
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2712 if (!is_static) { |
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2713 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
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2714 } |
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2715 __ ba(checkVolatile); |
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2716 __ delayed()->tst(Lscratch); |
0 | 2717 } |
2718 | |
2719 __ bind(notChar); | |
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2720 // cmp(Rflags, stos); |
0 | 2721 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
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2722 __ delayed()->cmp(Rflags, ftos); |
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2723 |
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2724 // stos (short) |
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2725 { |
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2726 __ pop_i(); |
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2727 if (!is_static) pop_and_check_object(Rclass); |
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2728 __ sth(Otos_i, Rclass, Roffset); |
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2729 if (!is_static) { |
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2730 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
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2731 } |
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2732 __ ba(checkVolatile); |
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2733 __ delayed()->tst(Lscratch); |
0 | 2734 } |
2735 | |
2736 __ bind(notShort); | |
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2737 // cmp(Rflags, ftos); |
0 | 2738 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
2739 __ delayed()->nop(); | |
2740 | |
2741 // ftos | |
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2742 { |
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2743 __ pop_f(); |
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2744 if (!is_static) pop_and_check_object(Rclass); |
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2745 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
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2746 if (!is_static) { |
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2747 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
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2748 } |
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2749 __ ba(checkVolatile); |
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2750 __ delayed()->tst(Lscratch); |
0 | 2751 } |
2752 | |
2753 __ bind(notFloat); | |
2754 | |
2755 // dtos | |
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2756 { |
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2757 __ pop_d(); |
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2758 if (!is_static) pop_and_check_object(Rclass); |
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2759 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
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2760 if (!is_static) { |
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2761 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
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2762 } |
0 | 2763 } |
2764 | |
2765 __ bind(checkVolatile); | |
2766 __ tst(Lscratch); | |
2767 | |
2768 if (__ membar_has_effect(write_bits)) { | |
2769 // __ tst(Lscratch); in delay slot | |
2770 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2771 __ delayed()->nop(); | |
2772 volatile_barrier(Assembler::StoreLoad); | |
2773 __ bind(exit); | |
2774 } | |
2775 } | |
2776 | |
2777 void TemplateTable::fast_storefield(TosState state) { | |
2778 transition(state, vtos); | |
2779 Register Rcache = G3_scratch; | |
2780 Register Rclass = Rcache; | |
2781 Register Roffset= G4_scratch; | |
2782 Register Rflags = G1_scratch; | |
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2783 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2784 |
2785 jvmti_post_fast_field_mod(); | |
2786 | |
2787 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
2788 | |
2789 Assembler::Membar_mask_bits read_bits = | |
2790 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2791 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2792 | |
2793 Label notVolatile, checkVolatile, exit; | |
2794 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
727 | 2795 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
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2796 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2797 __ and3(Rflags, Lscratch, Lscratch); |
2798 if (__ membar_has_effect(read_bits)) { | |
3839 | 2799 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2800 volatile_barrier(read_bits); |
2801 __ bind(notVolatile); | |
2802 } | |
2803 } | |
2804 | |
727 | 2805 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2806 pop_and_check_object(Rclass); |
2807 | |
2808 switch (bytecode()) { | |
2809 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
2810 case Bytecodes::_fast_cputfield: /* fall through */ | |
2811 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
2812 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
2813 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
2814 case Bytecodes::_fast_fputfield: | |
2815 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
2816 break; | |
2817 case Bytecodes::_fast_dputfield: | |
2818 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
2819 break; | |
2820 case Bytecodes::_fast_aputfield: | |
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2821 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
0 | 2822 break; |
2823 default: | |
2824 ShouldNotReachHere(); | |
2825 } | |
2826 | |
2827 if (__ membar_has_effect(write_bits)) { | |
3839 | 2828 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
0 | 2829 volatile_barrier(Assembler::StoreLoad); |
2830 __ bind(exit); | |
2831 } | |
2832 } | |
2833 | |
2834 | |
2835 void TemplateTable::putfield(int byte_no) { | |
2836 putfield_or_static(byte_no, false); | |
2837 } | |
2838 | |
2839 void TemplateTable::putstatic(int byte_no) { | |
2840 putfield_or_static(byte_no, true); | |
2841 } | |
2842 | |
2843 | |
2844 void TemplateTable::fast_xaccess(TosState state) { | |
2845 transition(vtos, state); | |
2846 Register Rcache = G3_scratch; | |
2847 Register Roffset = G4_scratch; | |
2848 Register Rflags = G4_scratch; | |
2849 Register Rreceiver = Lscratch; | |
2850 | |
1506 | 2851 __ ld_ptr(Llocals, 0, Rreceiver); |
0 | 2852 |
2853 // access constant pool cache (is resolved) | |
2854 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
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2855 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2856 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
2857 | |
2858 __ verify_oop(Rreceiver); | |
2859 __ null_check(Rreceiver); | |
2860 if (state == atos) { | |
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2861 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
0 | 2862 } else if (state == itos) { |
2863 __ ld (Rreceiver, Roffset, Otos_i) ; | |
2864 } else if (state == ftos) { | |
2865 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
2866 } else { | |
2867 ShouldNotReachHere(); | |
2868 } | |
2869 | |
2870 Assembler::Membar_mask_bits membar_bits = | |
2871 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2872 if (__ membar_has_effect(membar_bits)) { | |
2873 | |
2874 // Get is_volatile value in Rflags and check if membar is needed | |
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2875 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2876 |
2877 // Test volatile | |
2878 Label notVolatile; | |
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2879 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2880 __ btst(Rflags, Lscratch); |
2881 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
2882 __ delayed()->nop(); | |
2883 volatile_barrier(membar_bits); | |
2884 __ bind(notVolatile); | |
2885 } | |
2886 | |
2887 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
2888 __ sub(Lbcp, 1, Lbcp); | |
2889 } | |
2890 | |
2891 //---------------------------------------------------------------------------------------------------- | |
2892 // Calls | |
2893 | |
2894 void TemplateTable::count_calls(Register method, Register temp) { | |
2895 // implemented elsewhere | |
2896 ShouldNotReachHere(); | |
2897 } | |
2898 | |
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2899 void TemplateTable::prepare_invoke(int byte_no, |
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2900 Register method, // linked method (or i-klass) |
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2901 Register ra, // return address |
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2902 Register index, // itable index, MethodType, etc. |
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2903 Register recv, // if caller wants to see it |
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2904 Register flags // if caller wants to test it |
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2905 ) { |
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2906 // determine flags |
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2907 const Bytecodes::Code code = bytecode(); |
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2908 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2909 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2910 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2911 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2912 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2913 const bool load_receiver = (recv != noreg); |
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2914 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2915 assert(recv == noreg || recv == O0, ""); |
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2916 assert(flags == noreg || flags == O1, ""); |
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2917 |
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2918 // setup registers & access constant pool cache |
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2919 if (recv == noreg) recv = O0; |
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2920 if (flags == noreg) flags = O1; |
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2921 const Register temp = O2; |
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2922 assert_different_registers(method, ra, index, recv, flags, temp); |
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2923 |
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2924 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
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2925 |
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2926 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
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2927 |
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2928 // maybe push appendix to arguments |
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2929 if (is_invokedynamic || is_invokehandle) { |
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2930 Label L_no_push; |
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2931 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
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2932 __ btst(flags, temp); |
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2933 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
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2934 __ delayed()->nop(); |
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2935 // Push the appendix as a trailing parameter. |
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2936 // This must be done before we get the receiver, |
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2937 // since the parameter_size includes it. |
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2938 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2939 __ load_resolved_reference_at_index(temp, index); |
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2940 __ verify_oop(temp); |
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2941 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
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2942 __ bind(L_no_push); |
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2943 } |
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2944 |
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2945 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2946 if (load_receiver) { |
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2947 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
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2948 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
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2949 __ verify_oop(recv); |
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2950 } |
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2951 |
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2952 // compute return type |
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2953 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
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2954 // Make sure we don't need to mask flags after the above shift |
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2955 ConstantPoolCacheEntry::verify_tos_state_shift(); |
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2956 // load return address |
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2957 { |
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2958 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2959 (address)Interpreter::return_5_addrs_by_index_table() : |
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2960 (address)Interpreter::return_3_addrs_by_index_table(); |
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2961 AddressLiteral table(table_addr); |
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2962 __ set(table, temp); |
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2963 __ sll(ra, LogBytesPerWord, ra); |
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2964 __ ld_ptr(Address(temp, ra), ra); |
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2965 } |
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2966 } |
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2967 |
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2968 |
0 | 2969 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
2970 Register Rtemp = G4_scratch; | |
2971 Register Rcall = Rindex; | |
2972 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
2973 | |
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2974 // get target Method* & entry point |
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2975 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
0 | 2976 __ call_from_interpreter(Rcall, Gargs, Rret); |
2977 } | |
2978 | |
2979 void TemplateTable::invokevirtual(int byte_no) { | |
2980 transition(vtos, vtos); | |
1565 | 2981 assert(byte_no == f2_byte, "use this argument"); |
0 | 2982 |
2983 Register Rscratch = G3_scratch; | |
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2984 Register Rtemp = G4_scratch; |
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2985 Register Rret = Lscratch; |
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2986 Register O0_recv = O0; |
0 | 2987 Label notFinal; |
2988 | |
1565 | 2989 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
0 | 2990 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
2991 | |
2992 // Check for vfinal | |
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2993 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
0 | 2994 __ btst(Rret, G4_scratch); |
2995 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
2996 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
2997 | |
2998 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
2999 | |
3000 invokevfinal_helper(Rscratch, Rret); | |
3001 | |
3002 __ bind(notFinal); | |
3003 | |
3004 __ mov(G5_method, Rscratch); // better scratch register | |
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3005 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
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3006 // receiver is in O0_recv |
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3007 __ verify_oop(O0_recv); |
0 | 3008 |
3009 // get return address | |
727 | 3010 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
3011 __ set(table, Rtemp); | |
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3012 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3013 // Make sure we don't need to mask Rret after the above shift |
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3014 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 3015 __ sll(Rret, LogBytesPerWord, Rret); |
3016 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
3017 | |
3018 // get receiver klass | |
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3019 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3020 __ load_klass(O0_recv, O0_recv); |
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3021 __ verify_klass_ptr(O0_recv); |
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3022 |
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3023 __ profile_virtual_call(O0_recv, O4); |
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3024 |
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3025 generate_vtable_call(O0_recv, Rscratch, Rret); |
0 | 3026 } |
3027 | |
3028 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3029 transition(vtos, vtos); | |
1565 | 3030 assert(byte_no == f2_byte, "use this argument"); |
0 | 3031 |
3032 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
1565 | 3033 /*is_invokevfinal*/true, false); |
0 | 3034 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
3035 invokevfinal_helper(G3_scratch, Lscratch); | |
3036 } | |
3037 | |
3038 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
3039 Register Rtemp = G4_scratch; | |
3040 | |
3041 // Load receiver from stack slot | |
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3042 __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G4_scratch); |
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3043 __ lduh(G4_scratch, in_bytes(ConstMethod::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) |
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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 */ |