Mercurial > hg > graal-compiler
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 8067:5cd2fac2ae70
6749267: Signal handler should save/restore errno
Summary: Save errno before processing signal, then restore it.
Reviewed-by: acorn, sspitsyn
author | hseigel |
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date | Tue, 19 Feb 2013 08:51:56 -0500 |
parents | db9981fd3124 |
children | f16e75e0cf11 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "interpreter/interpreterRuntime.hpp" | |
28 #include "interpreter/templateTable.hpp" | |
29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
1972 | 31 #include "oops/objArrayKlass.hpp" |
32 #include "oops/oop.inline.hpp" | |
33 #include "prims/methodHandles.hpp" | |
34 #include "runtime/sharedRuntime.hpp" | |
35 #include "runtime/stubRoutines.hpp" | |
36 #include "runtime/synchronizer.hpp" | |
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37 #include "utilities/macros.hpp" |
0 | 38 |
39 #ifndef CC_INTERP | |
40 #define __ _masm-> | |
41 | |
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42 // Misc helpers |
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43 |
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44 // Do an oop store like *(base + index + offset) = val |
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45 // index can be noreg, |
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46 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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47 Register base, |
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48 Register index, |
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49 int offset, |
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50 Register val, |
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51 Register tmp, |
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52 BarrierSet::Name barrier, |
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53 bool precise) { |
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54 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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55 assert(index == noreg || offset == 0, "only one offset"); |
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56 switch (barrier) { |
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57 #if INCLUDE_ALL_GCS |
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 |
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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); | |
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343 __ brx(Assembler::equal, true, Assembler::pt, isString); |
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344 __ delayed()->cmp(O2, JVM_CONSTANT_Object); |
0 | 345 __ brx(Assembler::notEqual, true, Assembler::pt, notString); |
346 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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347 __ bind(isString); |
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348 __ stop("string should be rewritten to fast_aldc"); |
3839 | 349 __ ba_short(exit); |
0 | 350 |
351 __ bind(notString); | |
352 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
353 __ push(ftos); | |
354 | |
355 __ bind(exit); | |
356 } | |
357 | |
1602 | 358 // Fast path for caching oop constants. |
359 // %%% We should use this to handle Class and String constants also. | |
360 // %%% It will simplify the ldc/primitive path considerably. | |
361 void TemplateTable::fast_aldc(bool wide) { | |
362 transition(vtos, atos); | |
363 | |
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364 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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365 Label resolved; |
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366 |
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367 // We are resolved if the resolved reference cache entry contains a |
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368 // non-null object (CallSite, etc.) |
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369 assert_different_registers(Otos_i, G3_scratch); |
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370 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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371 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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372 __ tst(Otos_i); |
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373 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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374 __ delayed()->set((int)bytecode(), O1); |
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375 |
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376 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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377 |
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378 // first time invocation - must resolve first |
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379 __ call_VM(Otos_i, entry, O1); |
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380 __ bind(resolved); |
1602 | 381 __ verify_oop(Otos_i); |
382 } | |
383 | |
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384 |
0 | 385 void TemplateTable::ldc2_w() { |
386 transition(vtos, vtos); | |
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387 Label Long, exit; |
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388 |
0 | 389 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
390 __ get_cpool_and_tags(O0, O2); | |
391 | |
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392 const int base_offset = ConstantPool::header_size() * wordSize; |
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393 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 394 // get type from tags |
395 __ add(O2, tags_offset, O2); | |
396 __ ldub(O2, O1, O2); | |
397 | |
398 __ sll(O1, LogBytesPerWord, O1); | |
399 __ add(O0, O1, G3_scratch); | |
400 | |
3839 | 401 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
0 | 402 // A double can be placed at word-aligned locations in the constant pool. |
403 // Check out Conversions.java for an example. | |
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404 // Also ConstantPool::header_size() is 20, which makes it very difficult |
0 | 405 // to double-align double on the constant pool. SG, 11/7/97 |
406 #ifdef _LP64 | |
407 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
408 #else | |
409 FloatRegister f = Ftos_d; | |
410 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
411 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
412 f->successor()); | |
413 #endif | |
414 __ push(dtos); | |
3839 | 415 __ ba_short(exit); |
0 | 416 |
417 __ bind(Long); | |
418 #ifdef _LP64 | |
419 __ ldx(G3_scratch, base_offset, Otos_l); | |
420 #else | |
421 __ ld(G3_scratch, base_offset, Otos_l); | |
422 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
423 #endif | |
424 __ push(ltos); | |
425 | |
426 __ bind(exit); | |
427 } | |
428 | |
429 | |
430 void TemplateTable::locals_index(Register reg, int offset) { | |
431 __ ldub( at_bcp(offset), reg ); | |
432 } | |
433 | |
434 | |
435 void TemplateTable::locals_index_wide(Register reg) { | |
436 // offset is 2, not 1, because Lbcp points to wide prefix code | |
437 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
438 } | |
439 | |
440 void TemplateTable::iload() { | |
441 transition(vtos, itos); | |
442 // Rewrite iload,iload pair into fast_iload2 | |
443 // iload,caload pair into fast_icaload | |
444 if (RewriteFrequentPairs) { | |
445 Label rewrite, done; | |
446 | |
447 // get next byte | |
448 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
449 | |
450 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
451 // last two iloads in a pair. Comparing against fast_iload means that | |
452 // the next bytecode is neither an iload or a caload, and therefore | |
453 // an iload pair. | |
3839 | 454 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
0 | 455 |
456 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
457 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
458 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
459 | |
460 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
461 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
462 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
463 | |
464 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
465 // rewrite | |
466 // G4_scratch: fast bytecode | |
467 __ bind(rewrite); | |
468 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
469 __ bind(done); | |
470 } | |
471 | |
472 // Get the local value into tos | |
473 locals_index(G3_scratch); | |
474 __ access_local_int( G3_scratch, Otos_i ); | |
475 } | |
476 | |
477 void TemplateTable::fast_iload2() { | |
478 transition(vtos, itos); | |
479 locals_index(G3_scratch); | |
480 __ access_local_int( G3_scratch, Otos_i ); | |
481 __ push_i(); | |
482 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
483 __ access_local_int( G3_scratch, Otos_i ); | |
484 } | |
485 | |
486 void TemplateTable::fast_iload() { | |
487 transition(vtos, itos); | |
488 locals_index(G3_scratch); | |
489 __ access_local_int( G3_scratch, Otos_i ); | |
490 } | |
491 | |
492 void TemplateTable::lload() { | |
493 transition(vtos, ltos); | |
494 locals_index(G3_scratch); | |
495 __ access_local_long( G3_scratch, Otos_l ); | |
496 } | |
497 | |
498 | |
499 void TemplateTable::fload() { | |
500 transition(vtos, ftos); | |
501 locals_index(G3_scratch); | |
502 __ access_local_float( G3_scratch, Ftos_f ); | |
503 } | |
504 | |
505 | |
506 void TemplateTable::dload() { | |
507 transition(vtos, dtos); | |
508 locals_index(G3_scratch); | |
509 __ access_local_double( G3_scratch, Ftos_d ); | |
510 } | |
511 | |
512 | |
513 void TemplateTable::aload() { | |
514 transition(vtos, atos); | |
515 locals_index(G3_scratch); | |
516 __ access_local_ptr( G3_scratch, Otos_i); | |
517 } | |
518 | |
519 | |
520 void TemplateTable::wide_iload() { | |
521 transition(vtos, itos); | |
522 locals_index_wide(G3_scratch); | |
523 __ access_local_int( G3_scratch, Otos_i ); | |
524 } | |
525 | |
526 | |
527 void TemplateTable::wide_lload() { | |
528 transition(vtos, ltos); | |
529 locals_index_wide(G3_scratch); | |
530 __ access_local_long( G3_scratch, Otos_l ); | |
531 } | |
532 | |
533 | |
534 void TemplateTable::wide_fload() { | |
535 transition(vtos, ftos); | |
536 locals_index_wide(G3_scratch); | |
537 __ access_local_float( G3_scratch, Ftos_f ); | |
538 } | |
539 | |
540 | |
541 void TemplateTable::wide_dload() { | |
542 transition(vtos, dtos); | |
543 locals_index_wide(G3_scratch); | |
544 __ access_local_double( G3_scratch, Ftos_d ); | |
545 } | |
546 | |
547 | |
548 void TemplateTable::wide_aload() { | |
549 transition(vtos, atos); | |
550 locals_index_wide(G3_scratch); | |
551 __ access_local_ptr( G3_scratch, Otos_i ); | |
552 __ verify_oop(Otos_i); | |
553 } | |
554 | |
555 | |
556 void TemplateTable::iaload() { | |
557 transition(itos, itos); | |
558 // Otos_i: index | |
559 // tos: array | |
560 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
561 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
562 } | |
563 | |
564 | |
565 void TemplateTable::laload() { | |
566 transition(itos, ltos); | |
567 // Otos_i: index | |
568 // O2: array | |
569 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
570 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
571 } | |
572 | |
573 | |
574 void TemplateTable::faload() { | |
575 transition(itos, ftos); | |
576 // Otos_i: index | |
577 // O2: array | |
578 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
579 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
580 } | |
581 | |
582 | |
583 void TemplateTable::daload() { | |
584 transition(itos, dtos); | |
585 // Otos_i: index | |
586 // O2: array | |
587 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
588 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
589 } | |
590 | |
591 | |
592 void TemplateTable::aaload() { | |
593 transition(itos, atos); | |
594 // Otos_i: index | |
595 // tos: array | |
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596 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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597 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
0 | 598 __ verify_oop(Otos_i); |
599 } | |
600 | |
601 | |
602 void TemplateTable::baload() { | |
603 transition(itos, itos); | |
604 // Otos_i: index | |
605 // tos: array | |
606 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
607 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
608 } | |
609 | |
610 | |
611 void TemplateTable::caload() { | |
612 transition(itos, itos); | |
613 // Otos_i: index | |
614 // tos: array | |
615 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
616 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
617 } | |
618 | |
619 void TemplateTable::fast_icaload() { | |
620 transition(vtos, itos); | |
621 // Otos_i: index | |
622 // tos: array | |
623 locals_index(G3_scratch); | |
624 __ access_local_int( G3_scratch, Otos_i ); | |
625 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
626 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
627 } | |
628 | |
629 | |
630 void TemplateTable::saload() { | |
631 transition(itos, itos); | |
632 // Otos_i: index | |
633 // tos: array | |
634 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
635 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
636 } | |
637 | |
638 | |
639 void TemplateTable::iload(int n) { | |
640 transition(vtos, itos); | |
641 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
642 } | |
643 | |
644 | |
645 void TemplateTable::lload(int n) { | |
646 transition(vtos, ltos); | |
647 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
648 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
649 } | |
650 | |
651 | |
652 void TemplateTable::fload(int n) { | |
653 transition(vtos, ftos); | |
654 assert(n < Argument::n_register_parameters, "would need more code"); | |
655 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
656 } | |
657 | |
658 | |
659 void TemplateTable::dload(int n) { | |
660 transition(vtos, dtos); | |
661 FloatRegister dst = Ftos_d; | |
662 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
663 } | |
664 | |
665 | |
666 void TemplateTable::aload(int n) { | |
667 transition(vtos, atos); | |
668 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
669 } | |
670 | |
671 | |
672 void TemplateTable::aload_0() { | |
673 transition(vtos, atos); | |
674 | |
675 // According to bytecode histograms, the pairs: | |
676 // | |
677 // _aload_0, _fast_igetfield (itos) | |
678 // _aload_0, _fast_agetfield (atos) | |
679 // _aload_0, _fast_fgetfield (ftos) | |
680 // | |
681 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
682 // bytecode checks the next bytecode and then rewrites the current | |
683 // bytecode into a pair bytecode; otherwise it rewrites the current | |
684 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
685 // | |
686 if (RewriteFrequentPairs) { | |
687 Label rewrite, done; | |
688 | |
689 // get next byte | |
690 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
691 | |
692 // do actual aload_0 | |
693 aload(0); | |
694 | |
695 // if _getfield then wait with rewrite | |
3839 | 696 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
0 | 697 |
698 // if _igetfield then rewrite to _fast_iaccess_0 | |
699 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
700 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
701 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
702 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
703 | |
704 // if _agetfield then rewrite to _fast_aaccess_0 | |
705 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
706 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
707 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
708 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
709 | |
710 // if _fgetfield then rewrite to _fast_faccess_0 | |
711 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
712 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
713 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
714 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
715 | |
716 // else rewrite to _fast_aload0 | |
717 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
718 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
719 | |
720 // rewrite | |
721 // G4_scratch: fast bytecode | |
722 __ bind(rewrite); | |
723 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
724 __ bind(done); | |
725 } else { | |
726 aload(0); | |
727 } | |
728 } | |
729 | |
730 | |
731 void TemplateTable::istore() { | |
732 transition(itos, vtos); | |
733 locals_index(G3_scratch); | |
734 __ store_local_int( G3_scratch, Otos_i ); | |
735 } | |
736 | |
737 | |
738 void TemplateTable::lstore() { | |
739 transition(ltos, vtos); | |
740 locals_index(G3_scratch); | |
741 __ store_local_long( G3_scratch, Otos_l ); | |
742 } | |
743 | |
744 | |
745 void TemplateTable::fstore() { | |
746 transition(ftos, vtos); | |
747 locals_index(G3_scratch); | |
748 __ store_local_float( G3_scratch, Ftos_f ); | |
749 } | |
750 | |
751 | |
752 void TemplateTable::dstore() { | |
753 transition(dtos, vtos); | |
754 locals_index(G3_scratch); | |
755 __ store_local_double( G3_scratch, Ftos_d ); | |
756 } | |
757 | |
758 | |
759 void TemplateTable::astore() { | |
760 transition(vtos, vtos); | |
1506 | 761 __ load_ptr(0, Otos_i); |
762 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 763 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
764 locals_index(G3_scratch); | |
1506 | 765 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 766 } |
767 | |
768 | |
769 void TemplateTable::wide_istore() { | |
770 transition(vtos, vtos); | |
771 __ pop_i(); | |
772 locals_index_wide(G3_scratch); | |
773 __ store_local_int( G3_scratch, Otos_i ); | |
774 } | |
775 | |
776 | |
777 void TemplateTable::wide_lstore() { | |
778 transition(vtos, vtos); | |
779 __ pop_l(); | |
780 locals_index_wide(G3_scratch); | |
781 __ store_local_long( G3_scratch, Otos_l ); | |
782 } | |
783 | |
784 | |
785 void TemplateTable::wide_fstore() { | |
786 transition(vtos, vtos); | |
787 __ pop_f(); | |
788 locals_index_wide(G3_scratch); | |
789 __ store_local_float( G3_scratch, Ftos_f ); | |
790 } | |
791 | |
792 | |
793 void TemplateTable::wide_dstore() { | |
794 transition(vtos, vtos); | |
795 __ pop_d(); | |
796 locals_index_wide(G3_scratch); | |
797 __ store_local_double( G3_scratch, Ftos_d ); | |
798 } | |
799 | |
800 | |
801 void TemplateTable::wide_astore() { | |
802 transition(vtos, vtos); | |
1506 | 803 __ load_ptr(0, Otos_i); |
804 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 805 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
806 locals_index_wide(G3_scratch); | |
1506 | 807 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 808 } |
809 | |
810 | |
811 void TemplateTable::iastore() { | |
812 transition(itos, vtos); | |
813 __ pop_i(O2); // index | |
814 // Otos_i: val | |
815 // O3: array | |
816 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
817 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
818 } | |
819 | |
820 | |
821 void TemplateTable::lastore() { | |
822 transition(ltos, vtos); | |
823 __ pop_i(O2); // index | |
824 // Otos_l: val | |
825 // O3: array | |
826 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
827 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
828 } | |
829 | |
830 | |
831 void TemplateTable::fastore() { | |
832 transition(ftos, vtos); | |
833 __ pop_i(O2); // index | |
834 // Ftos_f: val | |
835 // O3: array | |
836 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
837 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
838 } | |
839 | |
840 | |
841 void TemplateTable::dastore() { | |
842 transition(dtos, vtos); | |
843 __ pop_i(O2); // index | |
844 // Fos_d: val | |
845 // O3: array | |
846 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
847 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
848 } | |
849 | |
850 | |
851 void TemplateTable::aastore() { | |
852 Label store_ok, is_null, done; | |
853 transition(vtos, vtos); | |
854 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
855 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
856 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
857 // Otos_i: val | |
858 // O2: index | |
859 // O3: array | |
860 __ verify_oop(Otos_i); | |
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861 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
0 | 862 |
863 // do array store check - check for NULL value first | |
3839 | 864 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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865 |
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866 __ load_klass(O3, O4); // get array klass |
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867 __ load_klass(Otos_i, O5); // get value klass |
0 | 868 |
869 // do fast instanceof cache test | |
870 | |
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871 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
0 | 872 |
873 assert(Otos_i == O0, "just checking"); | |
874 | |
875 // Otos_i: value | |
876 // O1: addr - offset | |
877 // O2: index | |
878 // O3: array | |
879 // O4: array element klass | |
880 // O5: value klass | |
881 | |
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882 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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883 |
0 | 884 // Generate a fast subtype check. Branch to store_ok if no |
885 // failure. Throw if failure. | |
886 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
887 | |
888 // Not a subtype; so must throw exception | |
889 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
890 | |
891 // Store is OK. | |
892 __ bind(store_ok); | |
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893 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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894 |
3839 | 895 __ ba(done); |
1506 | 896 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 897 |
898 __ bind(is_null); | |
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899 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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900 |
0 | 901 __ profile_null_seen(G3_scratch); |
1506 | 902 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 903 __ bind(done); |
904 } | |
905 | |
906 | |
907 void TemplateTable::bastore() { | |
908 transition(itos, vtos); | |
909 __ pop_i(O2); // index | |
910 // Otos_i: val | |
911 // O3: array | |
912 __ index_check(O3, O2, 0, G3_scratch, O2); | |
913 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
914 } | |
915 | |
916 | |
917 void TemplateTable::castore() { | |
918 transition(itos, vtos); | |
919 __ pop_i(O2); // index | |
920 // Otos_i: val | |
921 // O3: array | |
922 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
923 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
924 } | |
925 | |
926 | |
927 void TemplateTable::sastore() { | |
928 // %%%%% Factor across platform | |
929 castore(); | |
930 } | |
931 | |
932 | |
933 void TemplateTable::istore(int n) { | |
934 transition(itos, vtos); | |
935 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
936 } | |
937 | |
938 | |
939 void TemplateTable::lstore(int n) { | |
940 transition(ltos, vtos); | |
941 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
942 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
943 | |
944 } | |
945 | |
946 | |
947 void TemplateTable::fstore(int n) { | |
948 transition(ftos, vtos); | |
949 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
950 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
951 } | |
952 | |
953 | |
954 void TemplateTable::dstore(int n) { | |
955 transition(dtos, vtos); | |
956 FloatRegister src = Ftos_d; | |
957 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
958 } | |
959 | |
960 | |
961 void TemplateTable::astore(int n) { | |
962 transition(vtos, vtos); | |
1506 | 963 __ load_ptr(0, Otos_i); |
964 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 965 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
1506 | 966 __ store_local_ptr(n, Otos_i); |
0 | 967 } |
968 | |
969 | |
970 void TemplateTable::pop() { | |
971 transition(vtos, vtos); | |
1506 | 972 __ inc(Lesp, Interpreter::stackElementSize); |
0 | 973 } |
974 | |
975 | |
976 void TemplateTable::pop2() { | |
977 transition(vtos, vtos); | |
1506 | 978 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
0 | 979 } |
980 | |
981 | |
982 void TemplateTable::dup() { | |
983 transition(vtos, vtos); | |
984 // stack: ..., a | |
985 // load a and tag | |
1506 | 986 __ load_ptr(0, Otos_i); |
987 __ push_ptr(Otos_i); | |
0 | 988 // stack: ..., a, a |
989 } | |
990 | |
991 | |
992 void TemplateTable::dup_x1() { | |
993 transition(vtos, vtos); | |
994 // stack: ..., a, b | |
1506 | 995 __ load_ptr( 1, G3_scratch); // get a |
996 __ load_ptr( 0, Otos_l1); // get b | |
997 __ store_ptr(1, Otos_l1); // put b | |
998 __ store_ptr(0, G3_scratch); // put a - like swap | |
999 __ push_ptr(Otos_l1); // push b | |
0 | 1000 // stack: ..., b, a, b |
1001 } | |
1002 | |
1003 | |
1004 void TemplateTable::dup_x2() { | |
1005 transition(vtos, vtos); | |
1006 // stack: ..., a, b, c | |
1007 // get c and push on stack, reuse registers | |
1506 | 1008 __ load_ptr( 0, G3_scratch); // get c |
1009 __ push_ptr(G3_scratch); // push c with tag | |
0 | 1010 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
1011 // (stack offsets n+1 now) | |
1506 | 1012 __ load_ptr( 3, Otos_l1); // get a |
1013 __ store_ptr(3, G3_scratch); // put c at 3 | |
0 | 1014 // stack: ..., c, b, c, c (a in reg) |
1506 | 1015 __ load_ptr( 2, G3_scratch); // get b |
1016 __ store_ptr(2, Otos_l1); // put a at 2 | |
0 | 1017 // stack: ..., c, a, c, c (b in reg) |
1506 | 1018 __ store_ptr(1, G3_scratch); // put b at 1 |
0 | 1019 // stack: ..., c, a, b, c |
1020 } | |
1021 | |
1022 | |
1023 void TemplateTable::dup2() { | |
1024 transition(vtos, vtos); | |
1506 | 1025 __ load_ptr(1, G3_scratch); // get a |
1026 __ load_ptr(0, Otos_l1); // get b | |
1027 __ push_ptr(G3_scratch); // push a | |
1028 __ push_ptr(Otos_l1); // push b | |
0 | 1029 // stack: ..., a, b, a, b |
1030 } | |
1031 | |
1032 | |
1033 void TemplateTable::dup2_x1() { | |
1034 transition(vtos, vtos); | |
1035 // stack: ..., a, b, c | |
1506 | 1036 __ load_ptr( 1, Lscratch); // get b |
1037 __ load_ptr( 2, Otos_l1); // get a | |
1038 __ store_ptr(2, Lscratch); // put b at a | |
0 | 1039 // stack: ..., b, b, c |
1506 | 1040 __ load_ptr( 0, G3_scratch); // get c |
1041 __ store_ptr(1, G3_scratch); // put c at b | |
0 | 1042 // stack: ..., b, c, c |
1506 | 1043 __ store_ptr(0, Otos_l1); // put a at c |
0 | 1044 // stack: ..., b, c, a |
1506 | 1045 __ push_ptr(Lscratch); // push b |
1046 __ push_ptr(G3_scratch); // push c | |
0 | 1047 // stack: ..., b, c, a, b, c |
1048 } | |
1049 | |
1050 | |
1051 // The spec says that these types can be a mixture of category 1 (1 word) | |
1052 // types and/or category 2 types (long and doubles) | |
1053 void TemplateTable::dup2_x2() { | |
1054 transition(vtos, vtos); | |
1055 // stack: ..., a, b, c, d | |
1506 | 1056 __ load_ptr( 1, Lscratch); // get c |
1057 __ load_ptr( 3, Otos_l1); // get a | |
1058 __ store_ptr(3, Lscratch); // put c at 3 | |
1059 __ store_ptr(1, Otos_l1); // put a at 1 | |
0 | 1060 // stack: ..., c, b, a, d |
1506 | 1061 __ load_ptr( 2, G3_scratch); // get b |
1062 __ load_ptr( 0, Otos_l1); // get d | |
1063 __ store_ptr(0, G3_scratch); // put b at 0 | |
1064 __ store_ptr(2, Otos_l1); // put d at 2 | |
0 | 1065 // stack: ..., c, d, a, b |
1506 | 1066 __ push_ptr(Lscratch); // push c |
1067 __ push_ptr(Otos_l1); // push d | |
0 | 1068 // stack: ..., c, d, a, b, c, d |
1069 } | |
1070 | |
1071 | |
1072 void TemplateTable::swap() { | |
1073 transition(vtos, vtos); | |
1074 // stack: ..., a, b | |
1506 | 1075 __ load_ptr( 1, G3_scratch); // get a |
1076 __ load_ptr( 0, Otos_l1); // get b | |
1077 __ store_ptr(0, G3_scratch); // put b | |
1078 __ store_ptr(1, Otos_l1); // put a | |
0 | 1079 // stack: ..., b, a |
1080 } | |
1081 | |
1082 | |
1083 void TemplateTable::iop2(Operation op) { | |
1084 transition(itos, itos); | |
1085 __ pop_i(O1); | |
1086 switch (op) { | |
1087 case add: __ add(O1, Otos_i, Otos_i); break; | |
1088 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
1089 // %%%%% Mul may not exist: better to call .mul? | |
1090 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
1506 | 1091 case _and: __ and3(O1, Otos_i, Otos_i); break; |
1092 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
1093 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
0 | 1094 case shl: __ sll(O1, Otos_i, Otos_i); break; |
1095 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
1096 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
1097 default: ShouldNotReachHere(); | |
1098 } | |
1099 } | |
1100 | |
1101 | |
1102 void TemplateTable::lop2(Operation op) { | |
1103 transition(ltos, ltos); | |
1104 __ pop_l(O2); | |
1105 switch (op) { | |
1106 #ifdef _LP64 | |
1506 | 1107 case add: __ add(O2, Otos_l, Otos_l); break; |
1108 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
1109 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
1110 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
1111 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
0 | 1112 #else |
1113 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
1114 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
1506 | 1115 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
1116 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
1117 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
0 | 1118 #endif |
1119 default: ShouldNotReachHere(); | |
1120 } | |
1121 } | |
1122 | |
1123 | |
1124 void TemplateTable::idiv() { | |
1125 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
1126 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
1127 | |
1128 transition(itos, itos); | |
1129 __ pop_i(O1); // get 1st op | |
1130 | |
1131 // Y contains upper 32 bits of result, set it to 0 or all ones | |
1132 __ wry(G0); | |
1133 __ mov(~0, G3_scratch); | |
1134 | |
1135 __ tst(O1); | |
1136 Label neg; | |
1137 __ br(Assembler::negative, true, Assembler::pn, neg); | |
1138 __ delayed()->wry(G3_scratch); | |
1139 __ bind(neg); | |
1140 | |
1141 Label ok; | |
1142 __ tst(Otos_i); | |
1143 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
1144 | |
1145 const int min_int = 0x80000000; | |
1146 Label regular; | |
1147 __ cmp(Otos_i, -1); | |
1148 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
1149 #ifdef _LP64 | |
1150 // Don't put set in delay slot | |
1151 // Set will turn into multiple instructions in 64 bit mode | |
1152 __ delayed()->nop(); | |
1153 __ set(min_int, G4_scratch); | |
1154 #else | |
1155 __ delayed()->set(min_int, G4_scratch); | |
1156 #endif | |
1157 Label done; | |
1158 __ cmp(O1, G4_scratch); | |
1159 __ br(Assembler::equal, true, Assembler::pt, done); | |
1160 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
1161 | |
1162 __ bind(regular); | |
1163 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
1164 __ bind(done); | |
1165 } | |
1166 | |
1167 | |
1168 void TemplateTable::irem() { | |
1169 transition(itos, itos); | |
1170 __ mov(Otos_i, O2); // save divisor | |
1171 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
1172 __ smul(Otos_i, O2, Otos_i); | |
1173 __ sub(O1, Otos_i, Otos_i); | |
1174 } | |
1175 | |
1176 | |
1177 void TemplateTable::lmul() { | |
1178 transition(ltos, ltos); | |
1179 __ pop_l(O2); | |
1180 #ifdef _LP64 | |
1181 __ mulx(Otos_l, O2, Otos_l); | |
1182 #else | |
1183 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
1184 #endif | |
1185 | |
1186 } | |
1187 | |
1188 | |
1189 void TemplateTable::ldiv() { | |
1190 transition(ltos, ltos); | |
1191 | |
1192 // check for zero | |
1193 __ pop_l(O2); | |
1194 #ifdef _LP64 | |
1195 __ tst(Otos_l); | |
1196 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1197 __ sdivx(O2, Otos_l, Otos_l); | |
1198 #else | |
1199 __ orcc(Otos_l1, Otos_l2, G0); | |
1200 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1201 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
1202 #endif | |
1203 } | |
1204 | |
1205 | |
1206 void TemplateTable::lrem() { | |
1207 transition(ltos, ltos); | |
1208 | |
1209 // check for zero | |
1210 __ pop_l(O2); | |
1211 #ifdef _LP64 | |
1212 __ tst(Otos_l); | |
1213 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1214 __ sdivx(O2, Otos_l, Otos_l2); | |
1215 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
1216 __ sub (O2, Otos_l2, Otos_l); | |
1217 #else | |
1218 __ orcc(Otos_l1, Otos_l2, G0); | |
1219 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1220 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
1221 #endif | |
1222 } | |
1223 | |
1224 | |
1225 void TemplateTable::lshl() { | |
1226 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
1227 | |
1228 __ pop_l(O2); // shift value in O2, O3 | |
1229 #ifdef _LP64 | |
1230 __ sllx(O2, Otos_i, Otos_l); | |
1231 #else | |
1232 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1233 #endif | |
1234 } | |
1235 | |
1236 | |
1237 void TemplateTable::lshr() { | |
1238 transition(itos, ltos); // %%%% see lshl comment | |
1239 | |
1240 __ pop_l(O2); // shift value in O2, O3 | |
1241 #ifdef _LP64 | |
1242 __ srax(O2, Otos_i, Otos_l); | |
1243 #else | |
1244 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1245 #endif | |
1246 } | |
1247 | |
1248 | |
1249 | |
1250 void TemplateTable::lushr() { | |
1251 transition(itos, ltos); // %%%% see lshl comment | |
1252 | |
1253 __ pop_l(O2); // shift value in O2, O3 | |
1254 #ifdef _LP64 | |
1255 __ srlx(O2, Otos_i, Otos_l); | |
1256 #else | |
1257 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1258 #endif | |
1259 } | |
1260 | |
1261 | |
1262 void TemplateTable::fop2(Operation op) { | |
1263 transition(ftos, ftos); | |
1264 switch (op) { | |
1265 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1266 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1267 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1268 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1269 case rem: | |
1270 assert(Ftos_f == F0, "just checking"); | |
1271 #ifdef _LP64 | |
1272 // LP64 calling conventions use F1, F3 for passing 2 floats | |
1273 __ pop_f(F1); | |
1274 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
1275 #else | |
1276 __ pop_i(O0); | |
1277 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
1278 __ ld( __ d_tmp, O1 ); | |
1279 #endif | |
1280 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
1281 assert( Ftos_f == F0, "fix this code" ); | |
1282 break; | |
1283 | |
1284 default: ShouldNotReachHere(); | |
1285 } | |
1286 } | |
1287 | |
1288 | |
1289 void TemplateTable::dop2(Operation op) { | |
1290 transition(dtos, dtos); | |
1291 switch (op) { | |
1292 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1293 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1294 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1295 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1296 case rem: | |
1297 #ifdef _LP64 | |
1298 // Pass arguments in D0, D2 | |
1299 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
1300 __ pop_d( F0 ); | |
1301 #else | |
1302 // Pass arguments in O0O1, O2O3 | |
1303 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1304 __ ldd( __ d_tmp, O2 ); | |
1305 __ pop_d(Ftos_f); | |
1306 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1307 __ ldd( __ d_tmp, O0 ); | |
1308 #endif | |
1309 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
1310 assert( Ftos_d == F0, "fix this code" ); | |
1311 break; | |
1312 | |
1313 default: ShouldNotReachHere(); | |
1314 } | |
1315 } | |
1316 | |
1317 | |
1318 void TemplateTable::ineg() { | |
1319 transition(itos, itos); | |
1320 __ neg(Otos_i); | |
1321 } | |
1322 | |
1323 | |
1324 void TemplateTable::lneg() { | |
1325 transition(ltos, ltos); | |
1326 #ifdef _LP64 | |
1327 __ sub(G0, Otos_l, Otos_l); | |
1328 #else | |
1329 __ lneg(Otos_l1, Otos_l2); | |
1330 #endif | |
1331 } | |
1332 | |
1333 | |
1334 void TemplateTable::fneg() { | |
1335 transition(ftos, ftos); | |
1336 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
1337 } | |
1338 | |
1339 | |
1340 void TemplateTable::dneg() { | |
1341 transition(dtos, dtos); | |
1342 // v8 has fnegd if source and dest are the same | |
1343 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
1344 } | |
1345 | |
1346 | |
1347 void TemplateTable::iinc() { | |
1348 transition(vtos, vtos); | |
1349 locals_index(G3_scratch); | |
1350 __ ldsb(Lbcp, 2, O2); // load constant | |
1351 __ access_local_int(G3_scratch, Otos_i); | |
1352 __ add(Otos_i, O2, Otos_i); | |
1506 | 1353 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1354 } |
1355 | |
1356 | |
1357 void TemplateTable::wide_iinc() { | |
1358 transition(vtos, vtos); | |
1359 locals_index_wide(G3_scratch); | |
1360 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
1361 __ access_local_int(G3_scratch, Otos_i); | |
1362 __ add(Otos_i, O3, Otos_i); | |
1506 | 1363 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1364 } |
1365 | |
1366 | |
1367 void TemplateTable::convert() { | |
1368 // %%%%% Factor this first part accross platforms | |
1369 #ifdef ASSERT | |
1370 TosState tos_in = ilgl; | |
1371 TosState tos_out = ilgl; | |
1372 switch (bytecode()) { | |
1373 case Bytecodes::_i2l: // fall through | |
1374 case Bytecodes::_i2f: // fall through | |
1375 case Bytecodes::_i2d: // fall through | |
1376 case Bytecodes::_i2b: // fall through | |
1377 case Bytecodes::_i2c: // fall through | |
1378 case Bytecodes::_i2s: tos_in = itos; break; | |
1379 case Bytecodes::_l2i: // fall through | |
1380 case Bytecodes::_l2f: // fall through | |
1381 case Bytecodes::_l2d: tos_in = ltos; break; | |
1382 case Bytecodes::_f2i: // fall through | |
1383 case Bytecodes::_f2l: // fall through | |
1384 case Bytecodes::_f2d: tos_in = ftos; break; | |
1385 case Bytecodes::_d2i: // fall through | |
1386 case Bytecodes::_d2l: // fall through | |
1387 case Bytecodes::_d2f: tos_in = dtos; break; | |
1388 default : ShouldNotReachHere(); | |
1389 } | |
1390 switch (bytecode()) { | |
1391 case Bytecodes::_l2i: // fall through | |
1392 case Bytecodes::_f2i: // fall through | |
1393 case Bytecodes::_d2i: // fall through | |
1394 case Bytecodes::_i2b: // fall through | |
1395 case Bytecodes::_i2c: // fall through | |
1396 case Bytecodes::_i2s: tos_out = itos; break; | |
1397 case Bytecodes::_i2l: // fall through | |
1398 case Bytecodes::_f2l: // fall through | |
1399 case Bytecodes::_d2l: tos_out = ltos; break; | |
1400 case Bytecodes::_i2f: // fall through | |
1401 case Bytecodes::_l2f: // fall through | |
1402 case Bytecodes::_d2f: tos_out = ftos; break; | |
1403 case Bytecodes::_i2d: // fall through | |
1404 case Bytecodes::_l2d: // fall through | |
1405 case Bytecodes::_f2d: tos_out = dtos; break; | |
1406 default : ShouldNotReachHere(); | |
1407 } | |
1408 transition(tos_in, tos_out); | |
1409 #endif | |
1410 | |
1411 | |
1412 // Conversion | |
1413 Label done; | |
1414 switch (bytecode()) { | |
1415 case Bytecodes::_i2l: | |
1416 #ifdef _LP64 | |
1417 // Sign extend the 32 bits | |
1418 __ sra ( Otos_i, 0, Otos_l ); | |
1419 #else | |
1420 __ addcc(Otos_i, 0, Otos_l2); | |
1421 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
1422 __ delayed()->clr(Otos_l1); | |
1423 __ set(~0, Otos_l1); | |
1424 #endif | |
1425 break; | |
1426 | |
1427 case Bytecodes::_i2f: | |
1428 __ st(Otos_i, __ d_tmp ); | |
1429 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1430 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
1431 break; | |
1432 | |
1433 case Bytecodes::_i2d: | |
1434 __ st(Otos_i, __ d_tmp); | |
1435 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1436 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
1437 break; | |
1438 | |
1439 case Bytecodes::_i2b: | |
1440 __ sll(Otos_i, 24, Otos_i); | |
1441 __ sra(Otos_i, 24, Otos_i); | |
1442 break; | |
1443 | |
1444 case Bytecodes::_i2c: | |
1445 __ sll(Otos_i, 16, Otos_i); | |
1446 __ srl(Otos_i, 16, Otos_i); | |
1447 break; | |
1448 | |
1449 case Bytecodes::_i2s: | |
1450 __ sll(Otos_i, 16, Otos_i); | |
1451 __ sra(Otos_i, 16, Otos_i); | |
1452 break; | |
1453 | |
1454 case Bytecodes::_l2i: | |
1455 #ifndef _LP64 | |
1456 __ mov(Otos_l2, Otos_i); | |
1457 #else | |
1458 // Sign-extend into the high 32 bits | |
1459 __ sra(Otos_l, 0, Otos_i); | |
1460 #endif | |
1461 break; | |
1462 | |
1463 case Bytecodes::_l2f: | |
1464 case Bytecodes::_l2d: | |
1465 __ st_long(Otos_l, __ d_tmp); | |
1466 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
1467 | |
1468 if (VM_Version::v9_instructions_work()) { | |
1469 if (bytecode() == Bytecodes::_l2f) { | |
1470 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1471 } else { | |
1472 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
1473 } | |
1474 } else { | |
1475 __ call_VM_leaf( | |
1476 Lscratch, | |
1477 bytecode() == Bytecodes::_l2f | |
1478 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
1479 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
1480 ); | |
1481 } | |
1482 break; | |
1483 | |
1484 case Bytecodes::_f2i: { | |
1485 Label isNaN; | |
1486 // result must be 0 if value is NaN; test by comparing value to itself | |
1487 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
1488 // According to the v8 manual, you have to have a non-fp instruction | |
1489 // between fcmp and fb. | |
1490 if (!VM_Version::v9_instructions_work()) { | |
1491 __ nop(); | |
1492 } | |
1493 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
1494 __ delayed()->clr(Otos_i); // NaN | |
1495 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
1496 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
1497 __ ld(__ d_tmp, Otos_i); | |
1498 __ bind(isNaN); | |
1499 } | |
1500 break; | |
1501 | |
1502 case Bytecodes::_f2l: | |
1503 // must uncache tos | |
1504 __ push_f(); | |
1505 #ifdef _LP64 | |
1506 __ pop_f(F1); | |
1507 #else | |
1508 __ pop_i(O0); | |
1509 #endif | |
1510 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
1511 break; | |
1512 | |
1513 case Bytecodes::_f2d: | |
1514 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
1515 break; | |
1516 | |
1517 case Bytecodes::_d2i: | |
1518 case Bytecodes::_d2l: | |
1519 // must uncache tos | |
1520 __ push_d(); | |
1521 #ifdef _LP64 | |
1522 // LP64 calling conventions pass first double arg in D0 | |
1523 __ pop_d( Ftos_d ); | |
1524 #else | |
1525 __ pop_i( O0 ); | |
1526 __ pop_i( O1 ); | |
1527 #endif | |
1528 __ call_VM_leaf(Lscratch, | |
1529 bytecode() == Bytecodes::_d2i | |
1530 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
1531 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
1532 break; | |
1533 | |
1534 case Bytecodes::_d2f: | |
1535 if (VM_Version::v9_instructions_work()) { | |
1536 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1537 } | |
1538 else { | |
1539 // must uncache tos | |
1540 __ push_d(); | |
1541 __ pop_i(O0); | |
1542 __ pop_i(O1); | |
1543 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
1544 } | |
1545 break; | |
1546 | |
1547 default: ShouldNotReachHere(); | |
1548 } | |
1549 __ bind(done); | |
1550 } | |
1551 | |
1552 | |
1553 void TemplateTable::lcmp() { | |
1554 transition(ltos, itos); | |
1555 | |
1556 #ifdef _LP64 | |
1557 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
1558 __ lcmp( O1, Otos_l, Otos_i ); | |
1559 #else | |
1560 __ pop_l(O2); // cmp O2,3 to O0,1 | |
1561 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
1562 #endif | |
1563 } | |
1564 | |
1565 | |
1566 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1567 | |
1568 if (is_float) __ pop_f(F2); | |
1569 else __ pop_d(F2); | |
1570 | |
1571 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
1572 | |
1573 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
1574 } | |
1575 | |
1576 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1577 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
1578 __ verify_thread(); | |
1579 | |
1580 const Register O2_bumped_count = O2; | |
1581 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
1582 | |
1583 // get (wide) offset to O1_disp | |
1584 const Register O1_disp = O1; | |
1585 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
1586 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
1587 | |
1588 // Handle all the JSR stuff here, then exit. | |
1589 // It's much shorter and cleaner than intermingling with the | |
605 | 1590 // non-JSR normal-branch stuff occurring below. |
0 | 1591 if( is_jsr ) { |
1592 // compute return address as bci in Otos_i | |
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1593 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1594 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1595 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
0 | 1596 |
1597 // Bump Lbcp to target of JSR | |
1598 __ add(Lbcp, O1_disp, Lbcp); | |
1599 // Push returnAddress for "ret" on stack | |
1506 | 1600 __ push_ptr(Otos_i); |
0 | 1601 // And away we go! |
1602 __ dispatch_next(vtos); | |
1603 return; | |
1604 } | |
1605 | |
1606 // Normal (non-jsr) branch handling | |
1607 | |
1608 // Save the current Lbcp | |
1609 const Register O0_cur_bcp = O0; | |
1610 __ mov( Lbcp, O0_cur_bcp ); | |
1611 | |
1783 | 1612 |
0 | 1613 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
1614 if ( increment_invocation_counter_for_backward_branches ) { | |
1615 Label Lforward; | |
1616 // check branch direction | |
1617 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
1618 // Bump bytecode pointer by displacement (take the branch) | |
1619 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
1620 | |
1783 | 1621 if (TieredCompilation) { |
1622 Label Lno_mdo, Loverflow; | |
1623 int increment = InvocationCounter::count_increment; | |
1624 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1625 if (ProfileInterpreter) { | |
1626 // If no method data exists, go to profile_continue. | |
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1627 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
3839 | 1628 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
1783 | 1629 |
1630 // Increment backedge counter in the MDO | |
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1631 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1632 in_bytes(InvocationCounter::counter_offset())); |
1633 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1634 Assembler::notZero, &Lforward); | |
3839 | 1635 __ ba_short(Loverflow); |
0 | 1636 } |
1783 | 1637 |
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1638 // If there's no MDO, increment counter in Method* |
1783 | 1639 __ bind(Lno_mdo); |
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1640 Address backedge_counter(Lmethod, in_bytes(Method::backedge_counter_offset()) + |
1783 | 1641 in_bytes(InvocationCounter::counter_offset())); |
1642 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1643 Assembler::notZero, &Lforward); | |
1644 __ bind(Loverflow); | |
1645 | |
1646 // notify point for loop, pass branch bytecode | |
1647 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
1648 | |
1649 // Was an OSR adapter generated? | |
1650 // O0 = osr nmethod | |
3839 | 1651 __ br_null_short(O0, Assembler::pn, Lforward); |
1783 | 1652 |
1653 // Has the nmethod been invalidated already? | |
1654 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
3839 | 1655 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
1783 | 1656 |
1657 // migrate the interpreter frame off of the stack | |
1658 | |
1659 __ mov(G2_thread, L7); | |
1660 // save nmethod | |
1661 __ mov(O0, L6); | |
1662 __ set_last_Java_frame(SP, noreg); | |
1663 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
1664 __ reset_last_Java_frame(); | |
1665 __ mov(L7, G2_thread); | |
1666 | |
1667 // move OSR nmethod to I1 | |
1668 __ mov(L6, I1); | |
1669 | |
1670 // OSR buffer to I0 | |
1671 __ mov(O0, I0); | |
1672 | |
1673 // remove the interpreter frame | |
1674 __ restore(I5_savedSP, 0, SP); | |
1675 | |
1676 // Jump to the osr code. | |
1677 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
1678 __ jmp(O2, G0); | |
1679 __ delayed()->nop(); | |
1680 | |
0 | 1681 } else { |
1783 | 1682 // Update Backedge branch separately from invocations |
1683 const Register G4_invoke_ctr = G4; | |
1684 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
1685 if (ProfileInterpreter) { | |
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1686 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
1783 | 1687 if (UseOnStackReplacement) { |
1688 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
1689 } | |
1690 } else { | |
1691 if (UseOnStackReplacement) { | |
1692 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
1693 } | |
0 | 1694 } |
1695 } | |
1696 | |
1697 __ bind(Lforward); | |
1698 } else | |
1699 // Bump bytecode pointer by displacement (take the branch) | |
1700 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
1701 | |
1702 // continue with bytecode @ target | |
1703 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
1704 // %%%%% and changing dispatch_next to dispatch_only | |
1705 __ dispatch_next(vtos); | |
1706 } | |
1707 | |
1708 | |
1709 // Note Condition in argument is TemplateTable::Condition | |
1710 // arg scope is within class scope | |
1711 | |
1712 void TemplateTable::if_0cmp(Condition cc) { | |
1713 // no pointers, integer only! | |
1714 transition(itos, vtos); | |
1715 // assume branch is more often taken than not (loops use backward branches) | |
1716 __ cmp( Otos_i, 0); | |
1717 __ if_cmp(ccNot(cc), false); | |
1718 } | |
1719 | |
1720 | |
1721 void TemplateTable::if_icmp(Condition cc) { | |
1722 transition(itos, vtos); | |
1723 __ pop_i(O1); | |
1724 __ cmp(O1, Otos_i); | |
1725 __ if_cmp(ccNot(cc), false); | |
1726 } | |
1727 | |
1728 | |
1729 void TemplateTable::if_nullcmp(Condition cc) { | |
1730 transition(atos, vtos); | |
1731 __ tst(Otos_i); | |
1732 __ if_cmp(ccNot(cc), true); | |
1733 } | |
1734 | |
1735 | |
1736 void TemplateTable::if_acmp(Condition cc) { | |
1737 transition(atos, vtos); | |
1738 __ pop_ptr(O1); | |
1739 __ verify_oop(O1); | |
1740 __ verify_oop(Otos_i); | |
1741 __ cmp(O1, Otos_i); | |
1742 __ if_cmp(ccNot(cc), true); | |
1743 } | |
1744 | |
1745 | |
1746 | |
1747 void TemplateTable::ret() { | |
1748 transition(vtos, vtos); | |
1749 locals_index(G3_scratch); | |
1750 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1751 // Otos_i contains the bci, compute the bcp from that | |
1752 | |
1753 #ifdef _LP64 | |
1754 #ifdef ASSERT | |
1755 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
1756 // the result. The return address (really a BCI) was stored with an | |
1757 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
1758 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
1759 // loaded value. | |
1760 { Label zzz ; | |
1761 __ set (65536, G3_scratch) ; | |
1762 __ cmp (Otos_i, G3_scratch) ; | |
1763 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
1764 __ delayed()->nop(); | |
1765 __ stop("BCI is in the wrong register half?"); | |
1766 __ bind (zzz) ; | |
1767 } | |
1768 #endif | |
1769 #endif | |
1770 | |
1771 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1772 | |
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1773 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1774 __ add(G3_scratch, Otos_i, G3_scratch); |
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1775 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1776 __ dispatch_next(vtos); |
1777 } | |
1778 | |
1779 | |
1780 void TemplateTable::wide_ret() { | |
1781 transition(vtos, vtos); | |
1782 locals_index_wide(G3_scratch); | |
1783 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1784 // Otos_i contains the bci, compute the bcp from that | |
1785 | |
1786 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1787 | |
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1788 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1789 __ add(G3_scratch, Otos_i, G3_scratch); |
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1790 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1791 __ dispatch_next(vtos); |
1792 } | |
1793 | |
1794 | |
1795 void TemplateTable::tableswitch() { | |
1796 transition(itos, vtos); | |
1797 Label default_case, continue_execution; | |
1798 | |
1799 // align bcp | |
1800 __ add(Lbcp, BytesPerInt, O1); | |
1801 __ and3(O1, -BytesPerInt, O1); | |
1802 // load lo, hi | |
1803 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
1804 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
1805 #ifdef _LP64 | |
1806 // Sign extend the 32 bits | |
1807 __ sra ( Otos_i, 0, Otos_i ); | |
1808 #endif /* _LP64 */ | |
1809 | |
1810 // check against lo & hi | |
1811 __ cmp( Otos_i, O2); | |
1812 __ br( Assembler::less, false, Assembler::pn, default_case); | |
1813 __ delayed()->cmp( Otos_i, O3 ); | |
1814 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
1815 // lookup dispatch offset | |
1816 __ delayed()->sub(Otos_i, O2, O2); | |
1817 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
1818 __ sll(O2, LogBytesPerInt, O2); | |
1819 __ add(O2, 3 * BytesPerInt, O2); | |
3839 | 1820 __ ba(continue_execution); |
0 | 1821 __ delayed()->ld(O1, O2, O2); |
1822 // handle default | |
1823 __ bind(default_case); | |
1824 __ profile_switch_default(O3); | |
1825 __ ld(O1, 0, O2); // get default offset | |
1826 // continue execution | |
1827 __ bind(continue_execution); | |
1828 __ add(Lbcp, O2, Lbcp); | |
1829 __ dispatch_next(vtos); | |
1830 } | |
1831 | |
1832 | |
1833 void TemplateTable::lookupswitch() { | |
1834 transition(itos, itos); | |
1835 __ stop("lookupswitch bytecode should have been rewritten"); | |
1836 } | |
1837 | |
1838 void TemplateTable::fast_linearswitch() { | |
1839 transition(itos, vtos); | |
1840 Label loop_entry, loop, found, continue_execution; | |
1841 // align bcp | |
1842 __ add(Lbcp, BytesPerInt, O1); | |
1843 __ and3(O1, -BytesPerInt, O1); | |
1844 // set counter | |
1845 __ ld(O1, BytesPerInt, O2); | |
1846 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
1847 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
3839 | 1848 __ ba(loop_entry); |
0 | 1849 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
1850 | |
1851 // table search | |
1852 __ bind(loop); | |
1853 __ cmp(O4, Otos_i); | |
1854 __ br(Assembler::equal, true, Assembler::pn, found); | |
1855 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
1856 __ inc(O3, 2 * BytesPerInt); | |
1857 | |
1858 __ bind(loop_entry); | |
1859 __ cmp(O2, O3); | |
1860 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
1861 __ delayed()->ld(O3, 0, O4); | |
1862 | |
1863 // default case | |
1864 __ ld(O1, 0, O4); // get default offset | |
1865 if (ProfileInterpreter) { | |
1866 __ profile_switch_default(O3); | |
3839 | 1867 __ ba_short(continue_execution); |
0 | 1868 } |
1869 | |
1870 // entry found -> get offset | |
1871 __ bind(found); | |
1872 if (ProfileInterpreter) { | |
1873 __ sub(O3, O1, O3); | |
1874 __ sub(O3, 2*BytesPerInt, O3); | |
1875 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
1876 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
1877 | |
1878 __ bind(continue_execution); | |
1879 } | |
1880 __ add(Lbcp, O4, Lbcp); | |
1881 __ dispatch_next(vtos); | |
1882 } | |
1883 | |
1884 | |
1885 void TemplateTable::fast_binaryswitch() { | |
1886 transition(itos, vtos); | |
1887 // Implementation using the following core algorithm: (copied from Intel) | |
1888 // | |
1889 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1890 // // Binary search according to "Methodik des Programmierens" by | |
1891 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1892 // int i = 0; | |
1893 // int j = n; | |
1894 // while (i+1 < j) { | |
1895 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1896 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1897 // // where a stands for the array and assuming that the (inexisting) | |
1898 // // element a[n] is infinitely big. | |
1899 // int h = (i + j) >> 1; | |
1900 // // i < h < j | |
1901 // if (key < array[h].fast_match()) { | |
1902 // j = h; | |
1903 // } else { | |
1904 // i = h; | |
1905 // } | |
1906 // } | |
1907 // // R: a[i] <= key < a[i+1] or Q | |
1908 // // (i.e., if key is within array, i is the correct index) | |
1909 // return i; | |
1910 // } | |
1911 | |
1912 // register allocation | |
1913 assert(Otos_i == O0, "alias checking"); | |
1914 const Register Rkey = Otos_i; // already set (tosca) | |
1915 const Register Rarray = O1; | |
1916 const Register Ri = O2; | |
1917 const Register Rj = O3; | |
1918 const Register Rh = O4; | |
1919 const Register Rscratch = O5; | |
1920 | |
1921 const int log_entry_size = 3; | |
1922 const int entry_size = 1 << log_entry_size; | |
1923 | |
1924 Label found; | |
1925 // Find Array start | |
1926 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
1927 __ and3(Rarray, -BytesPerInt, Rarray); | |
1928 // initialize i & j (in delay slot) | |
1929 __ clr( Ri ); | |
1930 | |
1931 // and start | |
1932 Label entry; | |
3839 | 1933 __ ba(entry); |
0 | 1934 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
1935 // (Rj is already in the native byte-ordering.) | |
1936 | |
1937 // binary search loop | |
1938 { Label loop; | |
1939 __ bind( loop ); | |
1940 // int h = (i + j) >> 1; | |
1941 __ sra( Rh, 1, Rh ); | |
1942 // if (key < array[h].fast_match()) { | |
1943 // j = h; | |
1944 // } else { | |
1945 // i = h; | |
1946 // } | |
1947 __ sll( Rh, log_entry_size, Rscratch ); | |
1948 __ ld( Rarray, Rscratch, Rscratch ); | |
1949 // (Rscratch is already in the native byte-ordering.) | |
1950 __ cmp( Rkey, Rscratch ); | |
1951 if ( VM_Version::v9_instructions_work() ) { | |
1952 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
1953 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
1954 } | |
1955 else { | |
1956 Label end_of_if; | |
1957 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
1958 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
1959 __ mov( Rh, Ri ); // else i = h | |
1960 __ bind(end_of_if); // } | |
1961 } | |
1962 | |
1963 // while (i+1 < j) | |
1964 __ bind( entry ); | |
1965 __ add( Ri, 1, Rscratch ); | |
1966 __ cmp(Rscratch, Rj); | |
1967 __ br( Assembler::less, true, Assembler::pt, loop ); | |
1968 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
1969 } | |
1970 | |
1971 // end of binary search, result index is i (must check again!) | |
1972 Label default_case; | |
1973 Label continue_execution; | |
1974 if (ProfileInterpreter) { | |
1975 __ mov( Ri, Rh ); // Save index in i for profiling | |
1976 } | |
1977 __ sll( Ri, log_entry_size, Ri ); | |
1978 __ ld( Rarray, Ri, Rscratch ); | |
1979 // (Rscratch is already in the native byte-ordering.) | |
1980 __ cmp( Rkey, Rscratch ); | |
1981 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
1982 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
1983 | |
1984 // entry found -> j = offset | |
1985 __ inc( Ri, BytesPerInt ); | |
1986 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
1987 __ ld( Rarray, Ri, Rj ); | |
1988 // (Rj is already in the native byte-ordering.) | |
1989 | |
1990 if (ProfileInterpreter) { | |
3839 | 1991 __ ba_short(continue_execution); |
0 | 1992 } |
1993 | |
1994 __ bind(default_case); // fall through (if not profiling) | |
1995 __ profile_switch_default(Ri); | |
1996 | |
1997 __ bind(continue_execution); | |
1998 __ add( Lbcp, Rj, Lbcp ); | |
1999 __ dispatch_next( vtos ); | |
2000 } | |
2001 | |
2002 | |
2003 void TemplateTable::_return(TosState state) { | |
2004 transition(state, state); | |
2005 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
2006 | |
2007 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2008 assert(state == vtos, "only valid state"); | |
2009 __ mov(G0, G3_scratch); | |
2010 __ access_local_ptr(G3_scratch, Otos_i); | |
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2011 __ load_klass(Otos_i, O2); |
0 | 2012 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2013 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
0 | 2014 __ andcc(G3, O2, G0); |
2015 Label skip_register_finalizer; | |
2016 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
2017 __ delayed()->nop(); | |
2018 | |
2019 // Call out to do finalizer registration | |
2020 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
2021 | |
2022 __ bind(skip_register_finalizer); | |
2023 } | |
2024 | |
2025 __ remove_activation(state, /* throw_monitor_exception */ true); | |
2026 | |
2027 // The caller's SP was adjusted upon method entry to accomodate | |
2028 // the callee's non-argument locals. Undo that adjustment. | |
2029 __ ret(); // return to caller | |
2030 __ delayed()->restore(I5_savedSP, G0, SP); | |
2031 } | |
2032 | |
2033 | |
2034 // ---------------------------------------------------------------------------- | |
2035 // Volatile variables demand their effects be made known to all CPU's in | |
2036 // order. Store buffers on most chips allow reads & writes to reorder; the | |
2037 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
2038 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
2039 // reorder volatile references, the hardware also must not reorder them). | |
2040 // | |
2041 // According to the new Java Memory Model (JMM): | |
2042 // (1) All volatiles are serialized wrt to each other. | |
2043 // ALSO reads & writes act as aquire & release, so: | |
2044 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
2045 // the read float up to before the read. It's OK for non-volatile memory refs | |
2046 // that happen before the volatile read to float down below it. | |
2047 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
2048 // that happen BEFORE the write float down to after the write. It's OK for | |
2049 // non-volatile memory refs that happen after the volatile write to float up | |
2050 // before it. | |
2051 // | |
2052 // We only put in barriers around volatile refs (they are expensive), not | |
2053 // _between_ memory refs (that would require us to track the flavor of the | |
2054 // previous memory refs). Requirements (2) and (3) require some barriers | |
2055 // before volatile stores and after volatile loads. These nearly cover | |
2056 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
2057 // case is placed after volatile-stores although it could just as well go | |
2058 // before volatile-loads. | |
2059 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
2060 // Helper function to insert a is-volatile test and memory barrier | |
2061 // All current sparc implementations run in TSO, needing only StoreLoad | |
2062 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
2063 __ membar( order_constraint ); | |
2064 } | |
2065 | |
2066 // ---------------------------------------------------------------------------- | |
1565 | 2067 void TemplateTable::resolve_cache_and_index(int byte_no, |
2068 Register Rcache, | |
2069 Register index, | |
2070 size_t index_size) { | |
0 | 2071 // Depends on cpCacheOop layout! |
2072 Label resolved; | |
2073 | |
1565 | 2074 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2075 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2076 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2077 __ br(Assembler::equal, false, Assembler::pt, resolved); |
1503 | 2078 __ delayed()->set((int)bytecode(), O1); |
0 | 2079 |
2080 address entry; | |
2081 switch (bytecode()) { | |
2082 case Bytecodes::_getstatic : // fall through | |
2083 case Bytecodes::_putstatic : // fall through | |
2084 case Bytecodes::_getfield : // fall through | |
2085 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
2086 case Bytecodes::_invokevirtual : // fall through | |
2087 case Bytecodes::_invokespecial : // fall through | |
2088 case Bytecodes::_invokestatic : // fall through | |
2089 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2090 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
1503 | 2091 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2092 default: |
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2093 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2094 break; |
0 | 2095 } |
2096 // first time invocation - must resolve first | |
2097 __ call_VM(noreg, entry, O1); | |
2098 // Update registers with resolved info | |
1565 | 2099 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2100 __ bind(resolved); |
2101 } | |
2102 | |
2103 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2104 Register method, |
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2105 Register itable_index, |
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2106 Register flags, |
0 | 2107 bool is_invokevirtual, |
1565 | 2108 bool is_invokevfinal, |
2109 bool is_invokedynamic) { | |
0 | 2110 // Uses both G3_scratch and G4_scratch |
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2111 Register cache = G3_scratch; |
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2112 Register index = G4_scratch; |
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2113 assert_different_registers(cache, method, itable_index); |
0 | 2114 |
2115 // determine constant pool cache field offsets | |
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2116 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2117 const int method_offset = in_bytes( |
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2118 ConstantPoolCache::base_offset() + |
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2119 ((byte_no == f2_byte) |
0 | 2120 ? ConstantPoolCacheEntry::f2_offset() |
2121 : ConstantPoolCacheEntry::f1_offset() | |
2122 ) | |
2123 ); | |
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2124 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2125 ConstantPoolCacheEntry::flags_offset()); |
2126 // access constant pool cache fields | |
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2127 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2128 ConstantPoolCacheEntry::f2_offset()); |
2129 | |
2130 if (is_invokevfinal) { | |
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2131 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2132 __ ld_ptr(Address(cache, method_offset), method); |
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2133 } else { |
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2134 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2135 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2136 __ ld_ptr(Address(cache, method_offset), method); |
0 | 2137 } |
2138 | |
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2139 if (itable_index != noreg) { |
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2140 // pick up itable or appendix index from f2 also: |
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2141 __ ld_ptr(Address(cache, index_offset), itable_index); |
0 | 2142 } |
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2143 __ ld_ptr(Address(cache, flags_offset), flags); |
0 | 2144 } |
2145 | |
2146 // The Rcache register must be set before call | |
2147 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
2148 Register Rcache, | |
2149 Register index, | |
2150 Register Roffset, | |
2151 Register Rflags, | |
2152 bool is_static) { | |
2153 assert_different_registers(Rcache, Rflags, Roffset); | |
2154 | |
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2155 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2156 |
727 | 2157 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
2158 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
0 | 2159 if (is_static) { |
727 | 2160 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2161 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2162 __ ld_ptr( Robj, mirror_offset, Robj); |
0 | 2163 } |
2164 } | |
2165 | |
2166 // The registers Rcache and index expected to be set before call. | |
2167 // Correct values of the Rcache and index registers are preserved. | |
2168 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
2169 Register index, | |
2170 bool is_static, | |
2171 bool has_tos) { | |
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2172 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2173 |
2174 if (JvmtiExport::can_post_field_access()) { | |
2175 // Check to see if a field access watch has been set before we take | |
2176 // the time to call into the VM. | |
2177 Label Label1; | |
2178 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2179 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
0 | 2180 __ load_contents(get_field_access_count_addr, G1_scratch); |
3839 | 2181 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
0 | 2182 |
2183 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
2184 | |
2185 if (is_static) { | |
2186 __ clr(Otos_i); | |
2187 } else { | |
2188 if (has_tos) { | |
2189 // save object pointer before call_VM() clobbers it | |
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2190 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
0 | 2191 } else { |
2192 // Load top of stack (do not pop the value off the stack); | |
2193 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
2194 } | |
2195 __ verify_oop(Otos_i); | |
2196 } | |
2197 // Otos_i: object pointer or NULL if static | |
2198 // Rcache: cache entry pointer | |
2199 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
2200 Otos_i, Rcache); | |
2201 if (!is_static && has_tos) { | |
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2202 __ pop_ptr(Otos_i); // restore object pointer |
0 | 2203 __ verify_oop(Otos_i); |
2204 } | |
2205 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2206 __ bind(Label1); | |
2207 } | |
2208 } | |
2209 | |
2210 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2211 transition(vtos, vtos); | |
2212 | |
2213 Register Rcache = G3_scratch; | |
2214 Register index = G4_scratch; | |
2215 Register Rclass = Rcache; | |
2216 Register Roffset= G4_scratch; | |
2217 Register Rflags = G1_scratch; | |
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2218 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2219 |
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2220 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2221 jvmti_post_field_access(Rcache, index, is_static, false); |
2222 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2223 | |
2224 if (!is_static) { | |
2225 pop_and_check_object(Rclass); | |
2226 } else { | |
2227 __ verify_oop(Rclass); | |
2228 } | |
2229 | |
2230 Label exit; | |
2231 | |
2232 Assembler::Membar_mask_bits membar_bits = | |
2233 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2234 | |
2235 if (__ membar_has_effect(membar_bits)) { | |
2236 // Get volatile flag | |
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2237 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2238 __ and3(Rflags, Lscratch, Lscratch); |
2239 } | |
2240 | |
2241 Label checkVolatile; | |
2242 | |
2243 // compute field type | |
2244 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2245 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2246 // Make sure we don't need to mask Rflags after the above shift |
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2247 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2248 |
2249 // Check atos before itos for getstatic, more likely (in Queens at least) | |
2250 __ cmp(Rflags, atos); | |
2251 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
2252 __ delayed() ->cmp(Rflags, itos); | |
2253 | |
2254 // atos | |
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2255 __ load_heap_oop(Rclass, Roffset, Otos_i); |
0 | 2256 __ verify_oop(Otos_i); |
2257 __ push(atos); | |
2258 if (!is_static) { | |
2259 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
2260 } | |
3839 | 2261 __ ba(checkVolatile); |
0 | 2262 __ delayed()->tst(Lscratch); |
2263 | |
2264 __ bind(notObj); | |
2265 | |
2266 // cmp(Rflags, itos); | |
2267 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
2268 __ delayed() ->cmp(Rflags, ltos); | |
2269 | |
2270 // itos | |
2271 __ ld(Rclass, Roffset, Otos_i); | |
2272 __ push(itos); | |
2273 if (!is_static) { | |
2274 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
2275 } | |
3839 | 2276 __ ba(checkVolatile); |
0 | 2277 __ delayed()->tst(Lscratch); |
2278 | |
2279 __ bind(notInt); | |
2280 | |
2281 // cmp(Rflags, ltos); | |
2282 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
2283 __ delayed() ->cmp(Rflags, btos); | |
2284 | |
2285 // ltos | |
2286 // load must be atomic | |
2287 __ ld_long(Rclass, Roffset, Otos_l); | |
2288 __ push(ltos); | |
2289 if (!is_static) { | |
2290 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
2291 } | |
3839 | 2292 __ ba(checkVolatile); |
0 | 2293 __ delayed()->tst(Lscratch); |
2294 | |
2295 __ bind(notLong); | |
2296 | |
2297 // cmp(Rflags, btos); | |
2298 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
2299 __ delayed() ->cmp(Rflags, ctos); | |
2300 | |
2301 // btos | |
2302 __ ldsb(Rclass, Roffset, Otos_i); | |
2303 __ push(itos); | |
2304 if (!is_static) { | |
2305 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
2306 } | |
3839 | 2307 __ ba(checkVolatile); |
0 | 2308 __ delayed()->tst(Lscratch); |
2309 | |
2310 __ bind(notByte); | |
2311 | |
2312 // cmp(Rflags, ctos); | |
2313 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
2314 __ delayed() ->cmp(Rflags, stos); | |
2315 | |
2316 // ctos | |
2317 __ lduh(Rclass, Roffset, Otos_i); | |
2318 __ push(itos); | |
2319 if (!is_static) { | |
2320 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
2321 } | |
3839 | 2322 __ ba(checkVolatile); |
0 | 2323 __ delayed()->tst(Lscratch); |
2324 | |
2325 __ bind(notChar); | |
2326 | |
2327 // cmp(Rflags, stos); | |
2328 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
2329 __ delayed() ->cmp(Rflags, ftos); | |
2330 | |
2331 // stos | |
2332 __ ldsh(Rclass, Roffset, Otos_i); | |
2333 __ push(itos); | |
2334 if (!is_static) { | |
2335 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
2336 } | |
3839 | 2337 __ ba(checkVolatile); |
0 | 2338 __ delayed()->tst(Lscratch); |
2339 | |
2340 __ bind(notShort); | |
2341 | |
2342 | |
2343 // cmp(Rflags, ftos); | |
2344 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
2345 __ delayed() ->tst(Lscratch); | |
2346 | |
2347 // ftos | |
2348 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
2349 __ push(ftos); | |
2350 if (!is_static) { | |
2351 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
2352 } | |
3839 | 2353 __ ba(checkVolatile); |
0 | 2354 __ delayed()->tst(Lscratch); |
2355 | |
2356 __ bind(notFloat); | |
2357 | |
2358 | |
2359 // dtos | |
2360 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
2361 __ push(dtos); | |
2362 if (!is_static) { | |
2363 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
2364 } | |
2365 | |
2366 __ bind(checkVolatile); | |
2367 if (__ membar_has_effect(membar_bits)) { | |
2368 // __ tst(Lscratch); executed in delay slot | |
2369 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2370 __ delayed()->nop(); | |
2371 volatile_barrier(membar_bits); | |
2372 } | |
2373 | |
2374 __ bind(exit); | |
2375 } | |
2376 | |
2377 | |
2378 void TemplateTable::getfield(int byte_no) { | |
2379 getfield_or_static(byte_no, false); | |
2380 } | |
2381 | |
2382 void TemplateTable::getstatic(int byte_no) { | |
2383 getfield_or_static(byte_no, true); | |
2384 } | |
2385 | |
2386 | |
2387 void TemplateTable::fast_accessfield(TosState state) { | |
2388 transition(atos, state); | |
2389 Register Rcache = G3_scratch; | |
2390 Register index = G4_scratch; | |
2391 Register Roffset = G4_scratch; | |
2392 Register Rflags = Rcache; | |
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2393 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2394 |
2395 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2396 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
2397 | |
727 | 2398 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2399 |
2400 __ null_check(Otos_i); | |
2401 __ verify_oop(Otos_i); | |
2402 | |
2403 Label exit; | |
2404 | |
2405 Assembler::Membar_mask_bits membar_bits = | |
2406 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2407 if (__ membar_has_effect(membar_bits)) { | |
2408 // Get volatile flag | |
727 | 2409 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2410 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2411 } |
2412 | |
2413 switch (bytecode()) { | |
2414 case Bytecodes::_fast_bgetfield: | |
2415 __ ldsb(Otos_i, Roffset, Otos_i); | |
2416 break; | |
2417 case Bytecodes::_fast_cgetfield: | |
2418 __ lduh(Otos_i, Roffset, Otos_i); | |
2419 break; | |
2420 case Bytecodes::_fast_sgetfield: | |
2421 __ ldsh(Otos_i, Roffset, Otos_i); | |
2422 break; | |
2423 case Bytecodes::_fast_igetfield: | |
2424 __ ld(Otos_i, Roffset, Otos_i); | |
2425 break; | |
2426 case Bytecodes::_fast_lgetfield: | |
2427 __ ld_long(Otos_i, Roffset, Otos_l); | |
2428 break; | |
2429 case Bytecodes::_fast_fgetfield: | |
2430 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
2431 break; | |
2432 case Bytecodes::_fast_dgetfield: | |
2433 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
2434 break; | |
2435 case Bytecodes::_fast_agetfield: | |
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2436 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
0 | 2437 break; |
2438 default: | |
2439 ShouldNotReachHere(); | |
2440 } | |
2441 | |
2442 if (__ membar_has_effect(membar_bits)) { | |
2443 __ btst(Lscratch, Rflags); | |
2444 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2445 __ delayed()->nop(); | |
2446 volatile_barrier(membar_bits); | |
2447 __ bind(exit); | |
2448 } | |
2449 | |
2450 if (state == atos) { | |
2451 __ verify_oop(Otos_i); // does not blow flags! | |
2452 } | |
2453 } | |
2454 | |
2455 void TemplateTable::jvmti_post_fast_field_mod() { | |
2456 if (JvmtiExport::can_post_field_modification()) { | |
2457 // Check to see if a field modification watch has been set before we take | |
2458 // the time to call into the VM. | |
2459 Label done; | |
727 | 2460 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2461 __ load_contents(get_field_modification_count_addr, G4_scratch); |
3839 | 2462 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
0 | 2463 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
2464 __ verify_oop(G4_scratch); | |
2465 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
2466 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
2467 // Save tos values before call_VM() clobbers them. Since we have | |
2468 // to do it for every data type, we use the saved values as the | |
2469 // jvalue object. | |
2470 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
2471 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
2472 case Bytecodes::_fast_bputfield: // fall through | |
2473 case Bytecodes::_fast_sputfield: // fall through | |
2474 case Bytecodes::_fast_cputfield: // fall through | |
2475 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
2476 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
2477 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
2478 // get words in right order for use as jvalue object | |
2479 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
2480 } | |
2481 // setup pointer to jvalue object | |
2482 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
2483 // G4_scratch: object pointer | |
2484 // G1_scratch: cache entry pointer | |
2485 // G3_scratch: jvalue object on the stack | |
2486 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
2487 switch (bytecode()) { // restore tos values | |
2488 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
2489 case Bytecodes::_fast_bputfield: // fall through | |
2490 case Bytecodes::_fast_sputfield: // fall through | |
2491 case Bytecodes::_fast_cputfield: // fall through | |
2492 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
2493 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
2494 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
2495 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
2496 } | |
2497 __ bind(done); | |
2498 } | |
2499 } | |
2500 | |
2501 // The registers Rcache and index expected to be set before call. | |
2502 // The function may destroy various registers, just not the Rcache and index registers. | |
2503 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2504 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2505 |
2506 if (JvmtiExport::can_post_field_modification()) { | |
2507 // Check to see if a field modification watch has been set before we take | |
2508 // the time to call into the VM. | |
2509 Label Label1; | |
2510 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2511 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2512 __ load_contents(get_field_modification_count_addr, G1_scratch); |
3839 | 2513 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
0 | 2514 |
2515 // The Rcache and index registers have been already set. | |
2516 // This allows to eliminate this call but the Rcache and index | |
2517 // registers must be correspondingly used after this line. | |
2518 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
2519 | |
2520 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
2521 if (is_static) { | |
2522 // Life is simple. Null out the object pointer. | |
2523 __ clr(G4_scratch); | |
2524 } else { | |
2525 Register Rflags = G1_scratch; | |
2526 // Life is harder. The stack holds the value on top, followed by the | |
2527 // object. We don't know the size of the value, though; it could be | |
2528 // one or two words depending on its type. As a result, we must find | |
2529 // the type to determine where the object is. | |
2530 | |
2531 Label two_word, valsizeknown; | |
727 | 2532 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2533 __ mov(Lesp, G4_scratch); |
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2534 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2535 // Make sure we don't need to mask Rflags after the above shift |
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2536 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2537 __ cmp(Rflags, ltos); |
2538 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2539 __ delayed()->cmp(Rflags, dtos); | |
2540 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2541 __ delayed()->nop(); | |
2542 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
3839 | 2543 __ ba_short(valsizeknown); |
0 | 2544 __ bind(two_word); |
2545 | |
2546 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
2547 | |
2548 __ bind(valsizeknown); | |
2549 // setup object pointer | |
2550 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
2551 __ verify_oop(G4_scratch); | |
2552 } | |
2553 // setup pointer to jvalue object | |
2554 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
2555 // G4_scratch: object pointer or NULL if static | |
2556 // G3_scratch: cache entry pointer | |
2557 // G1_scratch: jvalue object on the stack | |
2558 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
2559 G4_scratch, G3_scratch, G1_scratch); | |
2560 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2561 __ bind(Label1); | |
2562 } | |
2563 } | |
2564 | |
2565 void TemplateTable::pop_and_check_object(Register r) { | |
2566 __ pop_ptr(r); | |
2567 __ null_check(r); // for field access must check obj. | |
2568 __ verify_oop(r); | |
2569 } | |
2570 | |
2571 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2572 transition(vtos, vtos); | |
2573 Register Rcache = G3_scratch; | |
2574 Register index = G4_scratch; | |
2575 Register Rclass = Rcache; | |
2576 Register Roffset= G4_scratch; | |
2577 Register Rflags = G1_scratch; | |
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2578 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2579 |
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2580 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2581 jvmti_post_field_mod(Rcache, index, is_static); |
2582 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2583 | |
2584 Assembler::Membar_mask_bits read_bits = | |
2585 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2586 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2587 | |
2588 Label notVolatile, checkVolatile, exit; | |
2589 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
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2590 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2591 __ and3(Rflags, Lscratch, Lscratch); |
2592 | |
2593 if (__ membar_has_effect(read_bits)) { | |
3839 | 2594 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2595 volatile_barrier(read_bits); |
2596 __ bind(notVolatile); | |
2597 } | |
2598 } | |
2599 | |
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2600 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2601 // Make sure we don't need to mask Rflags after the above shift |
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2602 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2603 |
2604 // compute field type | |
2605 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
2606 | |
2607 if (is_static) { | |
2608 // putstatic with object type most likely, check that first | |
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2609 __ cmp(Rflags, atos); |
0 | 2610 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2611 __ delayed()->cmp(Rflags, itos); |
0 | 2612 |
2613 // atos | |
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2614 { |
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2615 __ pop_ptr(); |
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2616 __ verify_oop(Otos_i); |
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2617 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2618 __ ba(checkVolatile); |
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2619 __ delayed()->tst(Lscratch); |
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2620 } |
0 | 2621 |
2622 __ bind(notObj); | |
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2623 // cmp(Rflags, itos); |
0 | 2624 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2625 __ delayed()->cmp(Rflags, btos); |
0 | 2626 |
2627 // itos | |
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2628 { |
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2629 __ pop_i(); |
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2630 __ st(Otos_i, Rclass, Roffset); |
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2631 __ ba(checkVolatile); |
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2632 __ delayed()->tst(Lscratch); |
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2633 } |
0 | 2634 |
2635 __ bind(notInt); | |
2636 } else { | |
2637 // putfield with int type most likely, check that first | |
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2638 __ cmp(Rflags, itos); |
0 | 2639 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2640 __ delayed()->cmp(Rflags, atos); |
0 | 2641 |
2642 // itos | |
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2643 { |
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2644 __ pop_i(); |
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2645 pop_and_check_object(Rclass); |
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2646 __ st(Otos_i, Rclass, Roffset); |
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2647 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
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2648 __ ba(checkVolatile); |
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2649 __ delayed()->tst(Lscratch); |
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2650 } |
0 | 2651 |
2652 __ bind(notInt); | |
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2653 // cmp(Rflags, atos); |
0 | 2654 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2655 __ delayed()->cmp(Rflags, btos); |
0 | 2656 |
2657 // atos | |
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2658 { |
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2659 __ pop_ptr(); |
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2660 pop_and_check_object(Rclass); |
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2661 __ verify_oop(Otos_i); |
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2662 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2663 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
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2664 __ ba(checkVolatile); |
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2665 __ delayed()->tst(Lscratch); |
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2666 } |
0 | 2667 |
2668 __ bind(notObj); | |
2669 } | |
2670 | |
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2671 // cmp(Rflags, btos); |
0 | 2672 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
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2673 __ delayed()->cmp(Rflags, ltos); |
0 | 2674 |
2675 // btos | |
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2676 { |
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2677 __ pop_i(); |
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2678 if (!is_static) pop_and_check_object(Rclass); |
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2679 __ stb(Otos_i, Rclass, Roffset); |
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2680 if (!is_static) { |
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2681 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
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2682 } |
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2683 __ ba(checkVolatile); |
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2684 __ delayed()->tst(Lscratch); |
0 | 2685 } |
2686 | |
2687 __ bind(notByte); | |
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2688 // cmp(Rflags, ltos); |
0 | 2689 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
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2690 __ delayed()->cmp(Rflags, ctos); |
0 | 2691 |
2692 // ltos | |
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2693 { |
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2694 __ pop_l(); |
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2695 if (!is_static) pop_and_check_object(Rclass); |
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2696 __ st_long(Otos_l, Rclass, Roffset); |
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2697 if (!is_static) { |
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2698 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
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2699 } |
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2700 __ ba(checkVolatile); |
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2701 __ delayed()->tst(Lscratch); |
0 | 2702 } |
2703 | |
2704 __ bind(notLong); | |
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2705 // cmp(Rflags, ctos); |
0 | 2706 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
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2707 __ delayed()->cmp(Rflags, stos); |
0 | 2708 |
2709 // ctos (char) | |
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2710 { |
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2711 __ pop_i(); |
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2712 if (!is_static) pop_and_check_object(Rclass); |
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2713 __ sth(Otos_i, Rclass, Roffset); |
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2714 if (!is_static) { |
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2715 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
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2716 } |
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2717 __ ba(checkVolatile); |
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2718 __ delayed()->tst(Lscratch); |
0 | 2719 } |
2720 | |
2721 __ bind(notChar); | |
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2722 // cmp(Rflags, stos); |
0 | 2723 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
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2724 __ delayed()->cmp(Rflags, ftos); |
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2725 |
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2726 // stos (short) |
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2727 { |
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2728 __ pop_i(); |
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2729 if (!is_static) pop_and_check_object(Rclass); |
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2730 __ sth(Otos_i, Rclass, Roffset); |
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2731 if (!is_static) { |
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2732 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
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2733 } |
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2734 __ ba(checkVolatile); |
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2735 __ delayed()->tst(Lscratch); |
0 | 2736 } |
2737 | |
2738 __ bind(notShort); | |
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2739 // cmp(Rflags, ftos); |
0 | 2740 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
2741 __ delayed()->nop(); | |
2742 | |
2743 // ftos | |
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2744 { |
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2745 __ pop_f(); |
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2746 if (!is_static) pop_and_check_object(Rclass); |
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2747 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
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2748 if (!is_static) { |
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2749 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
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2750 } |
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2751 __ ba(checkVolatile); |
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2752 __ delayed()->tst(Lscratch); |
0 | 2753 } |
2754 | |
2755 __ bind(notFloat); | |
2756 | |
2757 // dtos | |
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2758 { |
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2759 __ pop_d(); |
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2760 if (!is_static) pop_and_check_object(Rclass); |
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2761 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
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2762 if (!is_static) { |
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2763 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
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2764 } |
0 | 2765 } |
2766 | |
2767 __ bind(checkVolatile); | |
2768 __ tst(Lscratch); | |
2769 | |
2770 if (__ membar_has_effect(write_bits)) { | |
2771 // __ tst(Lscratch); in delay slot | |
2772 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2773 __ delayed()->nop(); | |
2774 volatile_barrier(Assembler::StoreLoad); | |
2775 __ bind(exit); | |
2776 } | |
2777 } | |
2778 | |
2779 void TemplateTable::fast_storefield(TosState state) { | |
2780 transition(state, vtos); | |
2781 Register Rcache = G3_scratch; | |
2782 Register Rclass = Rcache; | |
2783 Register Roffset= G4_scratch; | |
2784 Register Rflags = G1_scratch; | |
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2785 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2786 |
2787 jvmti_post_fast_field_mod(); | |
2788 | |
2789 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
2790 | |
2791 Assembler::Membar_mask_bits read_bits = | |
2792 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2793 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2794 | |
2795 Label notVolatile, checkVolatile, exit; | |
2796 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
727 | 2797 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
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2798 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2799 __ and3(Rflags, Lscratch, Lscratch); |
2800 if (__ membar_has_effect(read_bits)) { | |
3839 | 2801 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2802 volatile_barrier(read_bits); |
2803 __ bind(notVolatile); | |
2804 } | |
2805 } | |
2806 | |
727 | 2807 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2808 pop_and_check_object(Rclass); |
2809 | |
2810 switch (bytecode()) { | |
2811 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
2812 case Bytecodes::_fast_cputfield: /* fall through */ | |
2813 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
2814 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
2815 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
2816 case Bytecodes::_fast_fputfield: | |
2817 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
2818 break; | |
2819 case Bytecodes::_fast_dputfield: | |
2820 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
2821 break; | |
2822 case Bytecodes::_fast_aputfield: | |
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2823 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
0 | 2824 break; |
2825 default: | |
2826 ShouldNotReachHere(); | |
2827 } | |
2828 | |
2829 if (__ membar_has_effect(write_bits)) { | |
3839 | 2830 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
0 | 2831 volatile_barrier(Assembler::StoreLoad); |
2832 __ bind(exit); | |
2833 } | |
2834 } | |
2835 | |
2836 | |
2837 void TemplateTable::putfield(int byte_no) { | |
2838 putfield_or_static(byte_no, false); | |
2839 } | |
2840 | |
2841 void TemplateTable::putstatic(int byte_no) { | |
2842 putfield_or_static(byte_no, true); | |
2843 } | |
2844 | |
2845 | |
2846 void TemplateTable::fast_xaccess(TosState state) { | |
2847 transition(vtos, state); | |
2848 Register Rcache = G3_scratch; | |
2849 Register Roffset = G4_scratch; | |
2850 Register Rflags = G4_scratch; | |
2851 Register Rreceiver = Lscratch; | |
2852 | |
1506 | 2853 __ ld_ptr(Llocals, 0, Rreceiver); |
0 | 2854 |
2855 // access constant pool cache (is resolved) | |
2856 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
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2857 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2858 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
2859 | |
2860 __ verify_oop(Rreceiver); | |
2861 __ null_check(Rreceiver); | |
2862 if (state == atos) { | |
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2863 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
0 | 2864 } else if (state == itos) { |
2865 __ ld (Rreceiver, Roffset, Otos_i) ; | |
2866 } else if (state == ftos) { | |
2867 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
2868 } else { | |
2869 ShouldNotReachHere(); | |
2870 } | |
2871 | |
2872 Assembler::Membar_mask_bits membar_bits = | |
2873 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2874 if (__ membar_has_effect(membar_bits)) { | |
2875 | |
2876 // Get is_volatile value in Rflags and check if membar is needed | |
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2877 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2878 |
2879 // Test volatile | |
2880 Label notVolatile; | |
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2881 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2882 __ btst(Rflags, Lscratch); |
2883 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
2884 __ delayed()->nop(); | |
2885 volatile_barrier(membar_bits); | |
2886 __ bind(notVolatile); | |
2887 } | |
2888 | |
2889 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
2890 __ sub(Lbcp, 1, Lbcp); | |
2891 } | |
2892 | |
2893 //---------------------------------------------------------------------------------------------------- | |
2894 // Calls | |
2895 | |
2896 void TemplateTable::count_calls(Register method, Register temp) { | |
2897 // implemented elsewhere | |
2898 ShouldNotReachHere(); | |
2899 } | |
2900 | |
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2901 void TemplateTable::prepare_invoke(int byte_no, |
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2902 Register method, // linked method (or i-klass) |
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2903 Register ra, // return address |
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2904 Register index, // itable index, MethodType, etc. |
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2905 Register recv, // if caller wants to see it |
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2906 Register flags // if caller wants to test it |
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2907 ) { |
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2908 // determine flags |
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2909 const Bytecodes::Code code = bytecode(); |
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2910 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2911 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2912 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2913 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2914 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2915 const bool load_receiver = (recv != noreg); |
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2916 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2917 assert(recv == noreg || recv == O0, ""); |
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2918 assert(flags == noreg || flags == O1, ""); |
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2919 |
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2920 // setup registers & access constant pool cache |
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2921 if (recv == noreg) recv = O0; |
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2922 if (flags == noreg) flags = O1; |
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2923 const Register temp = O2; |
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2924 assert_different_registers(method, ra, index, recv, flags, temp); |
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2925 |
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2926 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
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2927 |
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2928 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
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2929 |
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2930 // maybe push appendix to arguments |
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2931 if (is_invokedynamic || is_invokehandle) { |
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2932 Label L_no_push; |
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2933 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
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2934 __ btst(flags, temp); |
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2935 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
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2936 __ delayed()->nop(); |
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2937 // Push the appendix as a trailing parameter. |
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2938 // This must be done before we get the receiver, |
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2939 // since the parameter_size includes it. |
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2940 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2941 __ load_resolved_reference_at_index(temp, index); |
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2942 __ verify_oop(temp); |
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2943 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
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2944 __ bind(L_no_push); |
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2945 } |
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2946 |
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2947 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2948 if (load_receiver) { |
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2949 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
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2950 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
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2951 __ verify_oop(recv); |
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2952 } |
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2953 |
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2954 // compute return type |
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2955 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
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2956 // Make sure we don't need to mask flags after the above shift |
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2957 ConstantPoolCacheEntry::verify_tos_state_shift(); |
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2958 // load return address |
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2959 { |
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2960 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2961 (address)Interpreter::return_5_addrs_by_index_table() : |
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2962 (address)Interpreter::return_3_addrs_by_index_table(); |
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2963 AddressLiteral table(table_addr); |
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2964 __ set(table, temp); |
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2965 __ sll(ra, LogBytesPerWord, ra); |
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2966 __ ld_ptr(Address(temp, ra), ra); |
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2967 } |
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2968 } |
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2969 |
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2970 |
0 | 2971 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
2972 Register Rtemp = G4_scratch; | |
2973 Register Rcall = Rindex; | |
2974 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
2975 | |
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2976 // get target Method* & entry point |
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2977 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
0 | 2978 __ call_from_interpreter(Rcall, Gargs, Rret); |
2979 } | |
2980 | |
2981 void TemplateTable::invokevirtual(int byte_no) { | |
2982 transition(vtos, vtos); | |
1565 | 2983 assert(byte_no == f2_byte, "use this argument"); |
0 | 2984 |
2985 Register Rscratch = G3_scratch; | |
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2986 Register Rtemp = G4_scratch; |
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2987 Register Rret = Lscratch; |
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2988 Register O0_recv = O0; |
0 | 2989 Label notFinal; |
2990 | |
1565 | 2991 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
0 | 2992 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
2993 | |
2994 // Check for vfinal | |
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2995 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
0 | 2996 __ btst(Rret, G4_scratch); |
2997 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
2998 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
2999 | |
3000 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
3001 | |
3002 invokevfinal_helper(Rscratch, Rret); | |
3003 | |
3004 __ bind(notFinal); | |
3005 | |
3006 __ mov(G5_method, Rscratch); // better scratch register | |
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3007 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
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3008 // receiver is in O0_recv |
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3009 __ verify_oop(O0_recv); |
0 | 3010 |
3011 // get return address | |
727 | 3012 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
3013 __ set(table, Rtemp); | |
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3014 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3015 // Make sure we don't need to mask Rret after the above shift |
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3016 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 3017 __ sll(Rret, LogBytesPerWord, Rret); |
3018 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
3019 | |
3020 // get receiver klass | |
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3021 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3022 __ load_klass(O0_recv, O0_recv); |
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3023 __ verify_klass_ptr(O0_recv); |
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3024 |
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3025 __ profile_virtual_call(O0_recv, O4); |
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3026 |
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3027 generate_vtable_call(O0_recv, Rscratch, Rret); |
0 | 3028 } |
3029 | |
3030 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3031 transition(vtos, vtos); | |
1565 | 3032 assert(byte_no == f2_byte, "use this argument"); |
0 | 3033 |
3034 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
1565 | 3035 /*is_invokevfinal*/true, false); |
0 | 3036 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
3037 invokevfinal_helper(G3_scratch, Lscratch); | |
3038 } | |
3039 | |
3040 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
3041 Register Rtemp = G4_scratch; | |
3042 | |
3043 // Load receiver from stack slot | |
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3044 __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G4_scratch); |
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3045 __ lduh(G4_scratch, in_bytes(ConstMethod::size_of_parameters_offset()), G4_scratch); |
0 | 3046 __ load_receiver(G4_scratch, O0); |
3047 | |
3048 // receiver NULL check | |
3049 __ null_check(O0); | |
3050 | |
3051 __ profile_final_call(O4); | |
3052 | |
3053 // get return address | |
727 | 3054 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
3055 __ set(table, Rtemp); | |
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3056 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3057 // Make sure we don't need to mask Rret after the above shift |
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3058 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 3059 __ sll(Rret, LogBytesPerWord, Rret); |
3060 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
3061 | |
3062 | |
3063 // do the call | |
3064 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
3065 } | |
3066 | |
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3067 |
0 | 3068 void TemplateTable::invokespecial(int byte_no) { |
3069 transition(vtos, vtos); | |
1565 | 3070 assert(byte_no == f1_byte, "use this argument"); |
0 | 3071 |
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3072 const Register Rret = Lscratch; |
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3073 const Register O0_recv = O0; |
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3074 const Register Rscratch = G3_scratch; |
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3075 |
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3076 prepare_invoke(byte_no, G5_method, Rret, noreg, O0_recv); // get receiver also for null check |
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3077 __ null_check(O0_recv); |
0 | 3078 |
3079 // do the call | |
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3080 __ profile_call(O4); |
0 | 3081 __ call_from_interpreter(Rscratch, Gargs, Rret); |
3082 } | |
3083 | |
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3084 |
0 | 3085 void TemplateTable::invokestatic(int byte_no) { |
3086 transition(vtos, vtos); | |
1565 | 3087 assert(byte_no == f1_byte, "use this argument"); |
0 | 3088 |
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3089 const Register Rret = Lscratch; |
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3090 const Register Rscratch = G3_scratch; |
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3091 |
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3092 prepare_invoke(byte_no, G5_method, Rret); // get f1 Method* |
0 | 3093 |
3094 // do the call | |
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3095 __ profile_call(O4); |
0 | 3096 __ call_from_interpreter(Rscratch, Gargs, Rret); |
3097 } | |
3098 | |
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3099 void TemplateTable::invokeinterface_object_method(Register RKlass, |
0 | 3100 Register Rcall, |
3101 Register Rret, | |
3102 Register Rflags) { | |
3103 Register Rscratch = G4_scratch; | |
3104 Register Rindex = Lscratch; | |
3105 | |
3106 assert_different_registers(Rscratch, Rindex, Rret); | |
3107 | |
3108 Label notFinal; | |
3109 | |
3110 // Check for vfinal | |
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3111 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), Rscratch); |
0 | 3112 __ btst(Rflags, Rscratch); |
3113 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
3114 __ delayed()->nop(); | |
3115 | |
3116 __ profile_final_call(O4); | |
3117 | |
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3118 // do the call - the index (f2) contains the Method* |
0 | 3119 assert_different_registers(G5_method, Gargs, Rcall); |
3120 __ mov(Rindex, G5_method); | |
3121 __ call_from_interpreter(Rcall, Gargs, Rret); | |
3122 __ bind(notFinal); | |
3123 | |
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3124 __ profile_virtual_call(RKlass, O4); |
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3125 generate_vtable_call(RKlass, Rindex, Rret); |
0 | 3126 } |
3127 | |
3128 | |
3129 void TemplateTable::invokeinterface(int byte_no) { | |
3130 transition(vtos, vtos); | |
1565 | 3131 assert(byte_no == f1_byte, "use this argument"); |
0 | 3132 |
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3133 const Register Rinterface = G1_scratch; |
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3134 const Register Rret = G3_scratch; |
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3135 const Register Rindex = Lscratch; |
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3136 const Register O0_recv = O0; |
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3137 const Register O1_flags = O1; |
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3138 const Register O2_Klass = O2; |
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3139 const Register Rscratch = G4_scratch; |
0 | 3140 assert_different_registers(Rscratch, G5_method); |
3141 | |
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3142 prepare_invoke(byte_no, Rinterface, Rret, Rindex, O0_recv, O1_flags); |
0 | 3143 |
3144 // get receiver klass | |
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3145 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3146 __ load_klass(O0_recv, O2_Klass); |
0 | 3147 |
3148 // Special case of invokeinterface called for virtual method of | |
3149 // java.lang.Object. See cpCacheOop.cpp for details. | |
3150 // This code isn't produced by javac, but could be produced by | |
3151 // another compliant java compiler. | |
3152 Label notMethod; | |
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3153 __ set((1 << ConstantPoolCacheEntry::is_forced_virtual_shift), Rscratch); |
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3154 __ btst(O1_flags, Rscratch); |
0 | 3155 __ br(Assembler::zero, false, Assembler::pt, notMethod); |
3156 __ delayed()->nop(); | |
3157 | |
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3158 invokeinterface_object_method(O2_Klass, Rinterface, Rret, O1_flags); |
0 | 3159 |
3160 __ bind(notMethod); | |
3161 | |
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3162 __ profile_virtual_call(O2_Klass, O4); |
0 | 3163 |
3164 // | |
3165 // find entry point to call | |
3166 // | |
3167 | |
3168 // compute start of first itableOffsetEntry (which is at end of vtable) | |
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3169 const int base = InstanceKlass::vtable_start_offset() * wordSize; |
0 | 3170 Label search; |
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3171 Register Rtemp = O1_flags; |
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3172 |
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3173 __ ld(O2_Klass, InstanceKlass::vtable_length_offset() * wordSize, Rtemp); |
0 | 3174 if (align_object_offset(1) > 1) { |
3175 __ round_to(Rtemp, align_object_offset(1)); | |
3176 } | |
3177 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
3178 if (Assembler::is_simm13(base)) { | |
3179 __ add(Rtemp, base, Rtemp); | |
3180 } else { | |
3181 __ set(base, Rscratch); | |
3182 __ add(Rscratch, Rtemp, Rtemp); | |
3183 } | |
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3184 __ add(O2_Klass, Rtemp, Rscratch); |
0 | 3185 |
3186 __ bind(search); | |
3187 | |
3188 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
3189 { | |
3190 Label ok; | |
3191 | |
3192 // Check that entry is non-null. Null entries are probably a bytecode | |
605 | 3193 // problem. If the interface isn't implemented by the receiver class, |
0 | 3194 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
3195 // this too but that's only if the entry isn't already resolved, so we | |
3196 // need to check again. | |
3839 | 3197 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
0 | 3198 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
3199 __ should_not_reach_here(); | |
3200 __ bind(ok); | |
3201 } | |
3202 | |
3203 __ cmp(Rinterface, Rtemp); | |
3204 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
3205 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
3206 | |
3207 // entry found and Rscratch points to it | |
3208 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
3209 | |
3210 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
3211 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
3212 __ add(Rscratch, Rindex, Rscratch); | |
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3213 __ ld_ptr(O2_Klass, Rscratch, G5_method); |
0 | 3214 |
3215 // Check for abstract method error. | |
3216 { | |
3217 Label ok; | |
3839 | 3218 __ br_notnull_short(G5_method, Assembler::pt, ok); |
0 | 3219 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
3220 __ should_not_reach_here(); | |
3221 __ bind(ok); | |
3222 } | |
3223 | |
3224 Register Rcall = Rinterface; | |
3225 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
3226 | |
3227 __ call_from_interpreter(Rcall, Gargs, Rret); | |
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3228 } |
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3229 |
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3230 void TemplateTable::invokehandle(int byte_no) { |
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3231 transition(vtos, vtos); |
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3232 assert(byte_no == f1_byte, "use this argument"); |
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3233 |
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3234 if (!EnableInvokeDynamic) { |
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3235 // rewriter does not generate this bytecode |
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3236 __ should_not_reach_here(); |
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3237 return; |
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3238 } |
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3239 |
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3240 const Register Rret = Lscratch; |
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3241 const Register G4_mtype = G4_scratch; |
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3242 const Register O0_recv = O0; |
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3243 const Register Rscratch = G3_scratch; |
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3244 |
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3245 prepare_invoke(byte_no, G5_method, Rret, G4_mtype, O0_recv); |
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3246 __ null_check(O0_recv); |
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3247 |
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3248 // G4: MethodType object (from cpool->resolved_references[f1], if necessary) |
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3249 // G5: MH.invokeExact_MT method (from f2) |
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3250 |
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3251 // Note: G4_mtype is already pushed (if necessary) by prepare_invoke |
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3252 |
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3253 // do the call |
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3254 __ verify_oop(G4_mtype); |
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3255 __ profile_final_call(O4); // FIXME: profile the LambdaForm also |
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3256 __ call_from_interpreter(Rscratch, Gargs, Rret); |
0 | 3257 } |
3258 | |
3259 | |
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3260 void TemplateTable::invokedynamic(int byte_no) { |
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3261 transition(vtos, vtos); |
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3262 assert(byte_no == f1_byte, "use this argument"); |
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3263 |
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3264 if (!EnableInvokeDynamic) { |
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3265 // We should not encounter this bytecode if !EnableInvokeDynamic. |
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3266 // The verifier will stop it. However, if we get past the verifier, |
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3267 // this will stop the thread in a reasonable way, without crashing the JVM. |
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3268 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
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3269 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
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3270 // the call_VM checks for exception, so we should never return here. |
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|
3271 __ should_not_reach_here(); |
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3272 return; |
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3273 } |
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3274 |
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3275 const Register Rret = Lscratch; |
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3276 const Register G4_callsite = G4_scratch; |
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3277 const Register Rscratch = G3_scratch; |
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3278 |
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3279 prepare_invoke(byte_no, G5_method, Rret, G4_callsite); |
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3280 |
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3281 // G4: CallSite object (from cpool->resolved_references[f1]) |
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3282 // G5: MH.linkToCallSite method (from f2) |
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3283 |
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3284 // Note: G4_callsite is already pushed by prepare_invoke |
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3285 |
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3286 // %%% should make a type profile for any invokedynamic that takes a ref argument |
1503 | 3287 // profile this call |
3288 __ profile_call(O4); | |
3289 | |
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3290 // do the call |
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3291 __ verify_oop(G4_callsite); |
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3292 __ call_from_interpreter(Rscratch, Gargs, Rret); |
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3293 } |
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|
3294 |
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3295 |
0 | 3296 //---------------------------------------------------------------------------------------------------- |
3297 // Allocation | |
3298 | |
3299 void TemplateTable::_new() { | |
3300 transition(vtos, atos); | |
3301 | |
3302 Label slow_case; | |
3303 Label done; | |
3304 Label initialize_header; | |
3305 Label initialize_object; // including clearing the fields | |
3306 | |
3307 Register RallocatedObject = Otos_i; | |
3308 Register RinstanceKlass = O1; | |
3309 Register Roffset = O3; | |
3310 Register Rscratch = O4; | |
3311 | |
3312 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3313 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
3314 // make sure the class we're about to instantiate has been resolved | |
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3315 // This is done before loading InstanceKlass to be consistent with the order |
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3316 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
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3317 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3318 __ ldub(G3_scratch, Roffset, G3_scratch); |
3319 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3320 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
3321 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
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3322 // get InstanceKlass |
0 | 3323 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
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3324 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3325 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); |
3326 | |
3327 // make sure klass is fully initialized: | |
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3328 __ ldub(RinstanceKlass, in_bytes(InstanceKlass::init_state_offset()), G3_scratch); |
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3329 __ cmp(G3_scratch, InstanceKlass::fully_initialized); |
0 | 3330 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); |
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3331 __ delayed()->ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
0 | 3332 |
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3333 // get instance_size in InstanceKlass (already aligned) |
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3334 //__ ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
0 | 3335 |
3336 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
3337 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
3338 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
3339 __ delayed()->nop(); | |
3340 | |
3341 // allocate the instance | |
3342 // 1) Try to allocate in the TLAB | |
3343 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
3344 // 3) if the above fails (or is not applicable), go to a slow case | |
3345 // (creates a new TLAB, etc.) | |
3346 | |
3347 const bool allow_shared_alloc = | |
3348 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
3349 | |
3350 if(UseTLAB) { | |
3351 Register RoldTopValue = RallocatedObject; | |
3892 | 3352 Register RtlabWasteLimitValue = G3_scratch; |
0 | 3353 Register RnewTopValue = G1_scratch; |
3354 Register RendValue = Rscratch; | |
3355 Register RfreeValue = RnewTopValue; | |
3356 | |
3357 // check if we can allocate in the TLAB | |
3358 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
3359 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
3360 __ add(RoldTopValue, Roffset, RnewTopValue); | |
3361 | |
3362 // if there is enough space, we do not CAS and do not clear | |
3363 __ cmp(RnewTopValue, RendValue); | |
3364 if(ZeroTLAB) { | |
3365 // the fields have already been cleared | |
3366 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
3367 } else { | |
3368 // initialize both the header and fields | |
3369 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
3370 } | |
3371 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
3372 | |
3373 if (allow_shared_alloc) { | |
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3374 // Check if tlab should be discarded (refill_waste_limit >= free) |
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3375 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); |
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3376 __ sub(RendValue, RoldTopValue, RfreeValue); |
0 | 3377 #ifdef _LP64 |
2100
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diff
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3378 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
0 | 3379 #else |
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3380 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
0 | 3381 #endif |
3839 | 3382 __ cmp_and_brx_short(RtlabWasteLimitValue, RfreeValue, Assembler::greaterEqualUnsigned, Assembler::pt, slow_case); // tlab waste is small |
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3383 |
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3384 // increment waste limit to prevent getting stuck on this slow path |
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3385 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
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3386 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
0 | 3387 } else { |
3388 // No allocation in the shared eden. | |
3839 | 3389 __ ba_short(slow_case); |
0 | 3390 } |
3391 } | |
3392 | |
3393 // Allocation in the shared Eden | |
3394 if (allow_shared_alloc) { | |
3395 Register RoldTopValue = G1_scratch; | |
3396 Register RtopAddr = G3_scratch; | |
3397 Register RnewTopValue = RallocatedObject; | |
3398 Register RendValue = Rscratch; | |
3399 | |
3400 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
3401 | |
3402 Label retry; | |
3403 __ bind(retry); | |
3404 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
3405 __ ld_ptr(RendValue, 0, RendValue); | |
3406 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
3407 __ add(RoldTopValue, Roffset, RnewTopValue); | |
3408 | |
3409 // RnewTopValue contains the top address after the new object | |
3410 // has been allocated. | |
3839 | 3411 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
0 | 3412 |
3413 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
3414 VM_Version::v9_instructions_work() ? NULL : | |
3415 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
3416 | |
3417 // if someone beat us on the allocation, try again, otherwise continue | |
3839 | 3418 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
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3419 |
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3420 // bump total bytes allocated by this thread |
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3421 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
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3422 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
0 | 3423 } |
3424 | |
3425 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
3426 // clear object fields | |
3427 __ bind(initialize_object); | |
3428 __ deccc(Roffset, sizeof(oopDesc)); | |
3429 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
3430 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
3431 | |
3432 // initialize remaining object fields | |
3892 | 3433 if (UseBlockZeroing) { |
3434 // Use BIS for zeroing | |
3435 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
3436 } else { | |
3437 Label loop; | |
0 | 3438 __ subcc(Roffset, wordSize, Roffset); |
3439 __ bind(loop); | |
3440 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
3441 __ st_ptr(G0, G3_scratch, Roffset); | |
3442 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
3443 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
3444 } | |
3839 | 3445 __ ba_short(initialize_header); |
0 | 3446 } |
3447 | |
3448 // slow case | |
3449 __ bind(slow_case); | |
3450 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
3451 __ get_constant_pool(O1); | |
3452 | |
3453 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
3454 | |
3839 | 3455 __ ba_short(done); |
0 | 3456 |
3457 // Initialize the header: mark, klass | |
3458 __ bind(initialize_header); | |
3459 | |
3460 if (UseBiasedLocking) { | |
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3461 __ ld_ptr(RinstanceKlass, in_bytes(Klass::prototype_header_offset()), G4_scratch); |
0 | 3462 } else { |
3463 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
3464 } | |
3465 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
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3466 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
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3467 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
0 | 3468 |
3469 { | |
3470 SkipIfEqual skip_if( | |
3471 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
3472 // Trigger dtrace event | |
3473 __ push(atos); | |
3474 __ call_VM_leaf(noreg, | |
3475 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
3476 __ pop(atos); | |
3477 } | |
3478 | |
3479 // continue | |
3480 __ bind(done); | |
3481 } | |
3482 | |
3483 | |
3484 | |
3485 void TemplateTable::newarray() { | |
3486 transition(itos, atos); | |
3487 __ ldub(Lbcp, 1, O1); | |
3488 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
3489 } | |
3490 | |
3491 | |
3492 void TemplateTable::anewarray() { | |
3493 transition(itos, atos); | |
3494 __ get_constant_pool(O1); | |
3495 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
3496 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
3497 } | |
3498 | |
3499 | |
3500 void TemplateTable::arraylength() { | |
3501 transition(atos, itos); | |
3502 Label ok; | |
3503 __ verify_oop(Otos_i); | |
3504 __ tst(Otos_i); | |
3505 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
3506 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
3507 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
3508 } | |
3509 | |
3510 | |
3511 void TemplateTable::checkcast() { | |
3512 transition(atos, atos); | |
3513 Label done, is_null, quicked, cast_ok, resolved; | |
3514 Register Roffset = G1_scratch; | |
3515 Register RobjKlass = O5; | |
3516 Register RspecifiedKlass = O4; | |
3517 | |
3518 // Check for casting a NULL | |
3839 | 3519 __ br_null_short(Otos_i, Assembler::pn, is_null); |
0 | 3520 |
3521 // Get value klass in RobjKlass | |
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3522 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3523 |
3524 // Get constant pool tag | |
3525 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3526 | |
3527 // See if the checkcast has been quickened | |
3528 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3529 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3530 __ ldub(G3_scratch, Roffset, G3_scratch); |
3531 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3532 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
3533 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
3534 | |
3535 __ push_ptr(); // save receiver for result, and for GC | |
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3536 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3537 __ get_vm_result_2(RspecifiedKlass); |
0 | 3538 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
3539 | |
3839 | 3540 __ ba_short(resolved); |
0 | 3541 |
3542 // Extract target class from constant pool | |
3543 __ bind(quicked); | |
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3544 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3545 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); |
3546 __ bind(resolved); | |
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3547 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3548 |
3549 // Generate a fast subtype check. Branch to cast_ok if no | |
3550 // failure. Throw exception if failure. | |
3551 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
3552 | |
3553 // Not a subtype; so must throw exception | |
3554 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
3555 | |
3556 __ bind(cast_ok); | |
3557 | |
3558 if (ProfileInterpreter) { | |
3839 | 3559 __ ba_short(done); |
0 | 3560 } |
3561 __ bind(is_null); | |
3562 __ profile_null_seen(G3_scratch); | |
3563 __ bind(done); | |
3564 } | |
3565 | |
3566 | |
3567 void TemplateTable::instanceof() { | |
3568 Label done, is_null, quicked, resolved; | |
3569 transition(atos, itos); | |
3570 Register Roffset = G1_scratch; | |
3571 Register RobjKlass = O5; | |
3572 Register RspecifiedKlass = O4; | |
3573 | |
3574 // Check for casting a NULL | |
3839 | 3575 __ br_null_short(Otos_i, Assembler::pt, is_null); |
0 | 3576 |
3577 // Get value klass in RobjKlass | |
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diff
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3578 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3579 |
3580 // Get constant pool tag | |
3581 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3582 | |
3583 // See if the checkcast has been quickened | |
3584 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3585 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3586 __ ldub(G3_scratch, Roffset, G3_scratch); |
3587 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3588 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
3589 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
3590 | |
3591 __ push_ptr(); // save receiver for result, and for GC | |
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3592 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3593 __ get_vm_result_2(RspecifiedKlass); |
0 | 3594 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
3595 | |
3839 | 3596 __ ba_short(resolved); |
0 | 3597 |
3598 // Extract target class from constant pool | |
3599 __ bind(quicked); | |
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3600 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3601 __ get_constant_pool(Lscratch); |
3602 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
3603 __ bind(resolved); | |
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3604 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3605 |
3606 // Generate a fast subtype check. Branch to cast_ok if no | |
3607 // failure. Return 0 if failure. | |
3608 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
3609 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
3610 // Not a subtype; return 0; | |
3611 __ clr( Otos_i ); | |
3612 | |
3613 if (ProfileInterpreter) { | |
3839 | 3614 __ ba_short(done); |
0 | 3615 } |
3616 __ bind(is_null); | |
3617 __ profile_null_seen(G3_scratch); | |
3618 __ bind(done); | |
3619 } | |
3620 | |
3621 void TemplateTable::_breakpoint() { | |
3622 | |
3623 // Note: We get here even if we are single stepping.. | |
3624 // jbug inists on setting breakpoints at every bytecode | |
3625 // even if we are in single step mode. | |
3626 | |
3627 transition(vtos, vtos); | |
3628 // get the unpatched byte code | |
3629 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
3630 __ mov(O0, Lbyte_code); | |
3631 | |
3632 // post the breakpoint event | |
3633 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
3634 | |
3635 // complete the execution of original bytecode | |
3636 __ dispatch_normal(vtos); | |
3637 } | |
3638 | |
3639 | |
3640 //---------------------------------------------------------------------------------------------------- | |
3641 // Exceptions | |
3642 | |
3643 void TemplateTable::athrow() { | |
3644 transition(atos, vtos); | |
3645 | |
3646 // This works because exception is cached in Otos_i which is same as O0, | |
3647 // which is same as what throw_exception_entry_expects | |
3648 assert(Otos_i == Oexception, "see explanation above"); | |
3649 | |
3650 __ verify_oop(Otos_i); | |
3651 __ null_check(Otos_i); | |
3652 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
3653 } | |
3654 | |
3655 | |
3656 //---------------------------------------------------------------------------------------------------- | |
3657 // Synchronization | |
3658 | |
3659 | |
3660 // See frame_sparc.hpp for monitor block layout. | |
3661 // Monitor elements are dynamically allocated by growing stack as needed. | |
3662 | |
3663 void TemplateTable::monitorenter() { | |
3664 transition(atos, vtos); | |
3665 __ verify_oop(Otos_i); | |
3666 // Try to acquire a lock on the object | |
3667 // Repeat until succeeded (i.e., until | |
3668 // monitorenter returns true). | |
3669 | |
3670 { Label ok; | |
3671 __ tst(Otos_i); | |
3672 __ throw_if_not_1_x( Assembler::notZero, ok); | |
3673 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
3674 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
3675 } | |
3676 | |
3677 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
3678 | |
3679 // find a free slot in the monitor block | |
3680 | |
3681 | |
3682 // initialize entry pointer | |
3683 __ clr(O1); // points to free slot or NULL | |
3684 | |
3685 { | |
3686 Label entry, loop, exit; | |
3687 __ add( __ top_most_monitor(), O2 ); // last one to check | |
3839 | 3688 __ ba( entry ); |
0 | 3689 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
3690 | |
3691 | |
3692 __ bind( loop ); | |
3693 | |
3694 __ verify_oop(O4); // verify each monitor's oop | |
3695 __ tst(O4); // is this entry unused? | |
3696 if (VM_Version::v9_instructions_work()) | |
3697 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
3698 else { | |
3699 Label L; | |
3700 __ br( Assembler::zero, true, Assembler::pn, L ); | |
3701 __ delayed()->mov(O3, O1); // rememeber this one if match | |
3702 __ bind(L); | |
3703 } | |
3704 | |
3705 __ cmp(O4, O0); // check if current entry is for same object | |
3706 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
3707 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
3708 | |
3709 __ bind( entry ); | |
3710 | |
3711 __ cmp( O3, O2 ); | |
3712 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
3713 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
3714 | |
3715 __ bind( exit ); | |
3716 } | |
3717 | |
3718 { Label allocated; | |
3719 | |
3720 // found free slot? | |
3839 | 3721 __ br_notnull_short(O1, Assembler::pn, allocated); |
0 | 3722 |
3723 __ add_monitor_to_stack( false, O2, O3 ); | |
3724 __ mov(Lmonitors, O1); | |
3725 | |
3726 __ bind(allocated); | |
3727 } | |
3728 | |
3729 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
3730 // The object has already been poped from the stack, so the expression stack looks correct. | |
3731 __ inc(Lbcp); | |
3732 | |
3733 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
3734 __ lock_object(O1, O0); | |
3735 | |
3736 // check if there's enough space on the stack for the monitors after locking | |
3737 __ generate_stack_overflow_check(0); | |
3738 | |
3739 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
3740 __ dispatch_next(vtos); | |
3741 } | |
3742 | |
3743 | |
3744 void TemplateTable::monitorexit() { | |
3745 transition(atos, vtos); | |
3746 __ verify_oop(Otos_i); | |
3747 __ tst(Otos_i); | |
3748 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
3749 | |
3750 assert(O0 == Otos_i, "just checking"); | |
3751 | |
3752 { Label entry, loop, found; | |
3753 __ add( __ top_most_monitor(), O2 ); // last one to check | |
3839 | 3754 __ ba(entry); |
0 | 3755 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
3756 // By using a local it survives the call to the C routine. | |
3757 __ delayed()->mov( Lmonitors, Lscratch ); | |
3758 | |
3759 __ bind( loop ); | |
3760 | |
3761 __ verify_oop(O4); // verify each monitor's oop | |
3762 __ cmp(O4, O0); // check if current entry is for desired object | |
3763 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
3764 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
3765 | |
3766 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
3767 | |
3768 __ bind( entry ); | |
3769 | |
3770 __ cmp( Lscratch, O2 ); | |
3771 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
3772 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
3773 | |
3774 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
3775 __ should_not_reach_here(); | |
3776 | |
3777 __ bind(found); | |
3778 } | |
3779 __ unlock_object(O1); | |
3780 } | |
3781 | |
3782 | |
3783 //---------------------------------------------------------------------------------------------------- | |
3784 // Wide instructions | |
3785 | |
3786 void TemplateTable::wide() { | |
3787 transition(vtos, vtos); | |
3788 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
3789 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
727 | 3790 AddressLiteral ep(Interpreter::_wentry_point); |
3791 __ set(ep, G4_scratch); | |
3792 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
0 | 3793 __ jmp(G3_scratch, G0); |
3794 __ delayed()->nop(); | |
3795 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
3796 } | |
3797 | |
3798 | |
3799 //---------------------------------------------------------------------------------------------------- | |
3800 // Multi arrays | |
3801 | |
3802 void TemplateTable::multianewarray() { | |
3803 transition(vtos, atos); | |
3804 // put ndims * wordSize into Lscratch | |
3805 __ ldub( Lbcp, 3, Lscratch); | |
1506 | 3806 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
0 | 3807 // Lesp points past last_dim, so set to O1 to first_dim address |
3808 __ add( Lesp, Lscratch, O1); | |
3809 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
3810 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
3811 } | |
3812 #endif /* !CC_INTERP */ |