Mercurial > hg > truffle
annotate src/cpu/sparc/vm/templateTable_sparc.cpp @ 10102:f2e682ef3156
8012335: G1: Fix bug with compressed oops in template interpreter on x86 and sparc.
Summary: In do_oop_store the uncompressed value of the oop being stored needs to be preserved and passed to g1_write_barrier_post. This is necessary for the heap region cross check to work correctly.
Reviewed-by: coleenp, johnc
Contributed-by: Martin Doerr <martin.doerr@sap.com>
author | johnc |
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date | Wed, 17 Apr 2013 10:57:02 -0700 |
parents | f16e75e0cf11 |
children | 9500809ceead |
rev | line source |
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0 | 1 /* |
8104 | 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "interpreter/interpreter.hpp" | |
27 #include "interpreter/interpreterRuntime.hpp" | |
28 #include "interpreter/templateTable.hpp" | |
29 #include "memory/universe.inline.hpp" | |
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30 #include "oops/methodData.hpp" |
1972 | 31 #include "oops/objArrayKlass.hpp" |
32 #include "oops/oop.inline.hpp" | |
33 #include "prims/methodHandles.hpp" | |
34 #include "runtime/sharedRuntime.hpp" | |
35 #include "runtime/stubRoutines.hpp" | |
36 #include "runtime/synchronizer.hpp" | |
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37 #include "utilities/macros.hpp" |
0 | 38 |
39 #ifndef CC_INTERP | |
40 #define __ _masm-> | |
41 | |
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42 // Misc helpers |
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43 |
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44 // Do an oop store like *(base + index + offset) = val |
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45 // index can be noreg, |
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46 static void do_oop_store(InterpreterMacroAssembler* _masm, |
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47 Register base, |
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48 Register index, |
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49 int offset, |
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50 Register val, |
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51 Register tmp, |
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52 BarrierSet::Name barrier, |
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53 bool precise) { |
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54 assert(tmp != val && tmp != base && tmp != index, "register collision"); |
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55 assert(index == noreg || offset == 0, "only one offset"); |
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56 switch (barrier) { |
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57 #if INCLUDE_ALL_GCS |
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58 case BarrierSet::G1SATBCT: |
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59 case BarrierSet::G1SATBCTLogging: |
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60 { |
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61 // Load and record the previous value. |
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62 __ g1_write_barrier_pre(base, index, offset, |
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63 noreg /* pre_val */, |
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64 tmp, true /*preserve_o_regs*/); |
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65 |
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66 // G1 barrier needs uncompressed oop for region cross check. |
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67 Register new_val = val; |
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68 if (UseCompressedOops && val != G0) { |
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69 new_val = tmp; |
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70 __ mov(val, new_val); |
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71 } |
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72 |
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73 if (index == noreg ) { |
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74 assert(Assembler::is_simm13(offset), "fix this code"); |
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75 __ store_heap_oop(val, base, offset); |
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76 } else { |
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77 __ store_heap_oop(val, base, index); |
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78 } |
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79 |
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80 // No need for post barrier if storing NULL |
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81 if (val != G0) { |
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82 if (precise) { |
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83 if (index == noreg) { |
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84 __ add(base, offset, base); |
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85 } else { |
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86 __ add(base, index, base); |
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87 } |
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88 } |
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89 __ g1_write_barrier_post(base, new_val, tmp); |
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90 } |
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91 } |
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92 break; |
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93 #endif // INCLUDE_ALL_GCS |
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94 case BarrierSet::CardTableModRef: |
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95 case BarrierSet::CardTableExtension: |
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96 { |
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97 if (index == noreg ) { |
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98 assert(Assembler::is_simm13(offset), "fix this code"); |
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99 __ store_heap_oop(val, base, offset); |
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100 } else { |
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101 __ store_heap_oop(val, base, index); |
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102 } |
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103 // No need for post barrier if storing NULL |
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104 if (val != G0) { |
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105 if (precise) { |
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106 if (index == noreg) { |
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107 __ add(base, offset, base); |
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108 } else { |
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109 __ add(base, index, base); |
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110 } |
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111 } |
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112 __ card_write_barrier_post(base, val, tmp); |
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113 } |
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114 } |
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115 break; |
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116 case BarrierSet::ModRef: |
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117 case BarrierSet::Other: |
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118 ShouldNotReachHere(); |
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119 break; |
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120 default : |
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121 ShouldNotReachHere(); |
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122 |
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123 } |
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124 } |
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125 |
0 | 126 |
127 //---------------------------------------------------------------------------------------------------- | |
128 // Platform-dependent initialization | |
129 | |
130 void TemplateTable::pd_initialize() { | |
131 // (none) | |
132 } | |
133 | |
134 | |
135 //---------------------------------------------------------------------------------------------------- | |
136 // Condition conversion | |
137 Assembler::Condition ccNot(TemplateTable::Condition cc) { | |
138 switch (cc) { | |
139 case TemplateTable::equal : return Assembler::notEqual; | |
140 case TemplateTable::not_equal : return Assembler::equal; | |
141 case TemplateTable::less : return Assembler::greaterEqual; | |
142 case TemplateTable::less_equal : return Assembler::greater; | |
143 case TemplateTable::greater : return Assembler::lessEqual; | |
144 case TemplateTable::greater_equal: return Assembler::less; | |
145 } | |
146 ShouldNotReachHere(); | |
147 return Assembler::zero; | |
148 } | |
149 | |
150 //---------------------------------------------------------------------------------------------------- | |
151 // Miscelaneous helper routines | |
152 | |
153 | |
154 Address TemplateTable::at_bcp(int offset) { | |
155 assert(_desc->uses_bcp(), "inconsistent uses_bcp information"); | |
727 | 156 return Address(Lbcp, offset); |
0 | 157 } |
158 | |
159 | |
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160 void TemplateTable::patch_bytecode(Bytecodes::Code bc, Register bc_reg, |
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161 Register temp_reg, bool load_bc_into_bc_reg/*=true*/, |
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162 int byte_no) { |
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163 // With sharing on, may need to test Method* flag. |
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164 if (!RewriteBytecodes) return; |
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165 Label L_patch_done; |
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166 |
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167 switch (bc) { |
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168 case Bytecodes::_fast_aputfield: |
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169 case Bytecodes::_fast_bputfield: |
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170 case Bytecodes::_fast_cputfield: |
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171 case Bytecodes::_fast_dputfield: |
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172 case Bytecodes::_fast_fputfield: |
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173 case Bytecodes::_fast_iputfield: |
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174 case Bytecodes::_fast_lputfield: |
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175 case Bytecodes::_fast_sputfield: |
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176 { |
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177 // We skip bytecode quickening for putfield instructions when |
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178 // the put_code written to the constant pool cache is zero. |
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179 // This is required so that every execution of this instruction |
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180 // calls out to InterpreterRuntime::resolve_get_put to do |
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181 // additional, required work. |
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182 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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183 assert(load_bc_into_bc_reg, "we use bc_reg as temp"); |
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184 __ get_cache_and_index_and_bytecode_at_bcp(bc_reg, temp_reg, temp_reg, byte_no, 1); |
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185 __ set(bc, bc_reg); |
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186 __ cmp_and_br_short(temp_reg, 0, Assembler::equal, Assembler::pn, L_patch_done); // don't patch |
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187 } |
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188 break; |
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189 default: |
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190 assert(byte_no == -1, "sanity"); |
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191 if (load_bc_into_bc_reg) { |
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192 __ set(bc, bc_reg); |
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193 } |
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194 } |
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195 |
0 | 196 if (JvmtiExport::can_post_breakpoint()) { |
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197 Label L_fast_patch; |
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198 __ ldub(at_bcp(0), temp_reg); |
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199 __ cmp_and_br_short(temp_reg, Bytecodes::_breakpoint, Assembler::notEqual, Assembler::pt, L_fast_patch); |
0 | 200 // perform the quickening, slowly, in the bowels of the breakpoint table |
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201 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::set_original_bytecode_at), Lmethod, Lbcp, bc_reg); |
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202 __ ba_short(L_patch_done); |
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203 __ bind(L_fast_patch); |
0 | 204 } |
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205 |
0 | 206 #ifdef ASSERT |
207 Bytecodes::Code orig_bytecode = Bytecodes::java_code(bc); | |
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208 Label L_okay; |
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209 __ ldub(at_bcp(0), temp_reg); |
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210 __ cmp(temp_reg, orig_bytecode); |
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211 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
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212 __ delayed()->cmp(temp_reg, bc_reg); |
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213 __ br(Assembler::equal, false, Assembler::pt, L_okay); |
0 | 214 __ delayed()->nop(); |
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215 __ stop("patching the wrong bytecode"); |
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216 __ bind(L_okay); |
0 | 217 #endif |
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218 |
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219 // patch bytecode |
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220 __ stb(bc_reg, at_bcp(0)); |
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221 __ bind(L_patch_done); |
0 | 222 } |
223 | |
224 //---------------------------------------------------------------------------------------------------- | |
225 // Individual instructions | |
226 | |
227 void TemplateTable::nop() { | |
228 transition(vtos, vtos); | |
229 // nothing to do | |
230 } | |
231 | |
232 void TemplateTable::shouldnotreachhere() { | |
233 transition(vtos, vtos); | |
234 __ stop("shouldnotreachhere bytecode"); | |
235 } | |
236 | |
237 void TemplateTable::aconst_null() { | |
238 transition(vtos, atos); | |
239 __ clr(Otos_i); | |
240 } | |
241 | |
242 | |
243 void TemplateTable::iconst(int value) { | |
244 transition(vtos, itos); | |
245 __ set(value, Otos_i); | |
246 } | |
247 | |
248 | |
249 void TemplateTable::lconst(int value) { | |
250 transition(vtos, ltos); | |
251 assert(value >= 0, "check this code"); | |
252 #ifdef _LP64 | |
253 __ set(value, Otos_l); | |
254 #else | |
255 __ set(value, Otos_l2); | |
256 __ clr( Otos_l1); | |
257 #endif | |
258 } | |
259 | |
260 | |
261 void TemplateTable::fconst(int value) { | |
262 transition(vtos, ftos); | |
263 static float zero = 0.0, one = 1.0, two = 2.0; | |
264 float* p; | |
265 switch( value ) { | |
266 default: ShouldNotReachHere(); | |
267 case 0: p = &zero; break; | |
268 case 1: p = &one; break; | |
269 case 2: p = &two; break; | |
270 } | |
727 | 271 AddressLiteral a(p); |
272 __ sethi(a, G3_scratch); | |
273 __ ldf(FloatRegisterImpl::S, G3_scratch, a.low10(), Ftos_f); | |
0 | 274 } |
275 | |
276 | |
277 void TemplateTable::dconst(int value) { | |
278 transition(vtos, dtos); | |
279 static double zero = 0.0, one = 1.0; | |
280 double* p; | |
281 switch( value ) { | |
282 default: ShouldNotReachHere(); | |
283 case 0: p = &zero; break; | |
284 case 1: p = &one; break; | |
285 } | |
727 | 286 AddressLiteral a(p); |
287 __ sethi(a, G3_scratch); | |
288 __ ldf(FloatRegisterImpl::D, G3_scratch, a.low10(), Ftos_d); | |
0 | 289 } |
290 | |
291 | |
292 // %%%%% Should factore most snippet templates across platforms | |
293 | |
294 void TemplateTable::bipush() { | |
295 transition(vtos, itos); | |
296 __ ldsb( at_bcp(1), Otos_i ); | |
297 } | |
298 | |
299 void TemplateTable::sipush() { | |
300 transition(vtos, itos); | |
301 __ get_2_byte_integer_at_bcp(1, G3_scratch, Otos_i, InterpreterMacroAssembler::Signed); | |
302 } | |
303 | |
304 void TemplateTable::ldc(bool wide) { | |
305 transition(vtos, vtos); | |
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306 Label call_ldc, notInt, isString, notString, notClass, exit; |
0 | 307 |
308 if (wide) { | |
309 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); | |
310 } else { | |
311 __ ldub(Lbcp, 1, O1); | |
312 } | |
313 __ get_cpool_and_tags(O0, O2); | |
314 | |
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315 const int base_offset = ConstantPool::header_size() * wordSize; |
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316 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 317 |
318 // get type from tags | |
319 __ add(O2, tags_offset, O2); | |
320 __ ldub(O2, O1, O2); | |
3839 | 321 |
322 // unresolved class? If so, must resolve | |
323 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClass, Assembler::equal, Assembler::pt, call_ldc); | |
324 | |
325 // unresolved class in error state | |
326 __ cmp_and_brx_short(O2, JVM_CONSTANT_UnresolvedClassInError, Assembler::equal, Assembler::pn, call_ldc); | |
0 | 327 |
328 __ cmp(O2, JVM_CONSTANT_Class); // need to call vm to get java mirror of the class | |
329 __ brx(Assembler::notEqual, true, Assembler::pt, notClass); | |
330 __ delayed()->add(O0, base_offset, O0); | |
331 | |
332 __ bind(call_ldc); | |
333 __ set(wide, O1); | |
334 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::ldc), O1); | |
335 __ push(atos); | |
3839 | 336 __ ba_short(exit); |
0 | 337 |
338 __ bind(notClass); | |
339 // __ add(O0, base_offset, O0); | |
340 __ sll(O1, LogBytesPerWord, O1); | |
341 __ cmp(O2, JVM_CONSTANT_Integer); | |
342 __ brx(Assembler::notEqual, true, Assembler::pt, notInt); | |
343 __ delayed()->cmp(O2, JVM_CONSTANT_String); | |
344 __ ld(O0, O1, Otos_i); | |
345 __ push(itos); | |
3839 | 346 __ ba_short(exit); |
0 | 347 |
348 __ bind(notInt); | |
349 // __ cmp(O2, JVM_CONSTANT_String); | |
350 __ brx(Assembler::notEqual, true, Assembler::pt, notString); | |
351 __ delayed()->ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
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352 __ bind(isString); |
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353 __ stop("string should be rewritten to fast_aldc"); |
3839 | 354 __ ba_short(exit); |
0 | 355 |
356 __ bind(notString); | |
357 // __ ldf(FloatRegisterImpl::S, O0, O1, Ftos_f); | |
358 __ push(ftos); | |
359 | |
360 __ bind(exit); | |
361 } | |
362 | |
1602 | 363 // Fast path for caching oop constants. |
364 // %%% We should use this to handle Class and String constants also. | |
365 // %%% It will simplify the ldc/primitive path considerably. | |
366 void TemplateTable::fast_aldc(bool wide) { | |
367 transition(vtos, atos); | |
368 | |
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369 int index_size = wide ? sizeof(u2) : sizeof(u1); |
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370 Label resolved; |
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371 |
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372 // We are resolved if the resolved reference cache entry contains a |
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373 // non-null object (CallSite, etc.) |
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374 assert_different_registers(Otos_i, G3_scratch); |
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375 __ get_cache_index_at_bcp(Otos_i, G3_scratch, 1, index_size); // load index => G3_scratch |
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376 __ load_resolved_reference_at_index(Otos_i, G3_scratch); |
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377 __ tst(Otos_i); |
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378 __ br(Assembler::notEqual, false, Assembler::pt, resolved); |
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379 __ delayed()->set((int)bytecode(), O1); |
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380 |
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381 address entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_ldc); |
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382 |
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383 // first time invocation - must resolve first |
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384 __ call_VM(Otos_i, entry, O1); |
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385 __ bind(resolved); |
1602 | 386 __ verify_oop(Otos_i); |
387 } | |
388 | |
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389 |
0 | 390 void TemplateTable::ldc2_w() { |
391 transition(vtos, vtos); | |
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392 Label Long, exit; |
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393 |
0 | 394 __ get_2_byte_integer_at_bcp(1, G3_scratch, O1, InterpreterMacroAssembler::Unsigned); |
395 __ get_cpool_and_tags(O0, O2); | |
396 | |
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397 const int base_offset = ConstantPool::header_size() * wordSize; |
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398 const int tags_offset = Array<u1>::base_offset_in_bytes(); |
0 | 399 // get type from tags |
400 __ add(O2, tags_offset, O2); | |
401 __ ldub(O2, O1, O2); | |
402 | |
403 __ sll(O1, LogBytesPerWord, O1); | |
404 __ add(O0, O1, G3_scratch); | |
405 | |
3839 | 406 __ cmp_and_brx_short(O2, JVM_CONSTANT_Double, Assembler::notEqual, Assembler::pt, Long); |
0 | 407 // A double can be placed at word-aligned locations in the constant pool. |
408 // Check out Conversions.java for an example. | |
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409 // Also ConstantPool::header_size() is 20, which makes it very difficult |
0 | 410 // to double-align double on the constant pool. SG, 11/7/97 |
411 #ifdef _LP64 | |
412 __ ldf(FloatRegisterImpl::D, G3_scratch, base_offset, Ftos_d); | |
413 #else | |
414 FloatRegister f = Ftos_d; | |
415 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset, f); | |
416 __ ldf(FloatRegisterImpl::S, G3_scratch, base_offset + sizeof(jdouble)/2, | |
417 f->successor()); | |
418 #endif | |
419 __ push(dtos); | |
3839 | 420 __ ba_short(exit); |
0 | 421 |
422 __ bind(Long); | |
423 #ifdef _LP64 | |
424 __ ldx(G3_scratch, base_offset, Otos_l); | |
425 #else | |
426 __ ld(G3_scratch, base_offset, Otos_l); | |
427 __ ld(G3_scratch, base_offset + sizeof(jlong)/2, Otos_l->successor()); | |
428 #endif | |
429 __ push(ltos); | |
430 | |
431 __ bind(exit); | |
432 } | |
433 | |
434 | |
435 void TemplateTable::locals_index(Register reg, int offset) { | |
436 __ ldub( at_bcp(offset), reg ); | |
437 } | |
438 | |
439 | |
440 void TemplateTable::locals_index_wide(Register reg) { | |
441 // offset is 2, not 1, because Lbcp points to wide prefix code | |
442 __ get_2_byte_integer_at_bcp(2, G4_scratch, reg, InterpreterMacroAssembler::Unsigned); | |
443 } | |
444 | |
445 void TemplateTable::iload() { | |
446 transition(vtos, itos); | |
447 // Rewrite iload,iload pair into fast_iload2 | |
448 // iload,caload pair into fast_icaload | |
449 if (RewriteFrequentPairs) { | |
450 Label rewrite, done; | |
451 | |
452 // get next byte | |
453 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_iload)), G3_scratch); | |
454 | |
455 // if _iload, wait to rewrite to iload2. We only want to rewrite the | |
456 // last two iloads in a pair. Comparing against fast_iload means that | |
457 // the next bytecode is neither an iload or a caload, and therefore | |
458 // an iload pair. | |
3839 | 459 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_iload, Assembler::equal, Assembler::pn, done); |
0 | 460 |
461 __ cmp(G3_scratch, (int)Bytecodes::_fast_iload); | |
462 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
463 __ delayed()->set(Bytecodes::_fast_iload2, G4_scratch); | |
464 | |
465 __ cmp(G3_scratch, (int)Bytecodes::_caload); | |
466 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
467 __ delayed()->set(Bytecodes::_fast_icaload, G4_scratch); | |
468 | |
469 __ set(Bytecodes::_fast_iload, G4_scratch); // don't check again | |
470 // rewrite | |
471 // G4_scratch: fast bytecode | |
472 __ bind(rewrite); | |
473 patch_bytecode(Bytecodes::_iload, G4_scratch, G3_scratch, false); | |
474 __ bind(done); | |
475 } | |
476 | |
477 // Get the local value into tos | |
478 locals_index(G3_scratch); | |
479 __ access_local_int( G3_scratch, Otos_i ); | |
480 } | |
481 | |
482 void TemplateTable::fast_iload2() { | |
483 transition(vtos, itos); | |
484 locals_index(G3_scratch); | |
485 __ access_local_int( G3_scratch, Otos_i ); | |
486 __ push_i(); | |
487 locals_index(G3_scratch, 3); // get next bytecode's local index. | |
488 __ access_local_int( G3_scratch, Otos_i ); | |
489 } | |
490 | |
491 void TemplateTable::fast_iload() { | |
492 transition(vtos, itos); | |
493 locals_index(G3_scratch); | |
494 __ access_local_int( G3_scratch, Otos_i ); | |
495 } | |
496 | |
497 void TemplateTable::lload() { | |
498 transition(vtos, ltos); | |
499 locals_index(G3_scratch); | |
500 __ access_local_long( G3_scratch, Otos_l ); | |
501 } | |
502 | |
503 | |
504 void TemplateTable::fload() { | |
505 transition(vtos, ftos); | |
506 locals_index(G3_scratch); | |
507 __ access_local_float( G3_scratch, Ftos_f ); | |
508 } | |
509 | |
510 | |
511 void TemplateTable::dload() { | |
512 transition(vtos, dtos); | |
513 locals_index(G3_scratch); | |
514 __ access_local_double( G3_scratch, Ftos_d ); | |
515 } | |
516 | |
517 | |
518 void TemplateTable::aload() { | |
519 transition(vtos, atos); | |
520 locals_index(G3_scratch); | |
521 __ access_local_ptr( G3_scratch, Otos_i); | |
522 } | |
523 | |
524 | |
525 void TemplateTable::wide_iload() { | |
526 transition(vtos, itos); | |
527 locals_index_wide(G3_scratch); | |
528 __ access_local_int( G3_scratch, Otos_i ); | |
529 } | |
530 | |
531 | |
532 void TemplateTable::wide_lload() { | |
533 transition(vtos, ltos); | |
534 locals_index_wide(G3_scratch); | |
535 __ access_local_long( G3_scratch, Otos_l ); | |
536 } | |
537 | |
538 | |
539 void TemplateTable::wide_fload() { | |
540 transition(vtos, ftos); | |
541 locals_index_wide(G3_scratch); | |
542 __ access_local_float( G3_scratch, Ftos_f ); | |
543 } | |
544 | |
545 | |
546 void TemplateTable::wide_dload() { | |
547 transition(vtos, dtos); | |
548 locals_index_wide(G3_scratch); | |
549 __ access_local_double( G3_scratch, Ftos_d ); | |
550 } | |
551 | |
552 | |
553 void TemplateTable::wide_aload() { | |
554 transition(vtos, atos); | |
555 locals_index_wide(G3_scratch); | |
556 __ access_local_ptr( G3_scratch, Otos_i ); | |
557 __ verify_oop(Otos_i); | |
558 } | |
559 | |
560 | |
561 void TemplateTable::iaload() { | |
562 transition(itos, itos); | |
563 // Otos_i: index | |
564 // tos: array | |
565 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
566 __ ld(O3, arrayOopDesc::base_offset_in_bytes(T_INT), Otos_i); | |
567 } | |
568 | |
569 | |
570 void TemplateTable::laload() { | |
571 transition(itos, ltos); | |
572 // Otos_i: index | |
573 // O2: array | |
574 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
575 __ ld_long(O3, arrayOopDesc::base_offset_in_bytes(T_LONG), Otos_l); | |
576 } | |
577 | |
578 | |
579 void TemplateTable::faload() { | |
580 transition(itos, ftos); | |
581 // Otos_i: index | |
582 // O2: array | |
583 __ index_check(O2, Otos_i, LogBytesPerInt, G3_scratch, O3); | |
584 __ ldf(FloatRegisterImpl::S, O3, arrayOopDesc::base_offset_in_bytes(T_FLOAT), Ftos_f); | |
585 } | |
586 | |
587 | |
588 void TemplateTable::daload() { | |
589 transition(itos, dtos); | |
590 // Otos_i: index | |
591 // O2: array | |
592 __ index_check(O2, Otos_i, LogBytesPerLong, G3_scratch, O3); | |
593 __ ldf(FloatRegisterImpl::D, O3, arrayOopDesc::base_offset_in_bytes(T_DOUBLE), Ftos_d); | |
594 } | |
595 | |
596 | |
597 void TemplateTable::aaload() { | |
598 transition(itos, atos); | |
599 // Otos_i: index | |
600 // tos: array | |
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601 __ index_check(O2, Otos_i, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O3); |
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602 __ load_heap_oop(O3, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i); |
0 | 603 __ verify_oop(Otos_i); |
604 } | |
605 | |
606 | |
607 void TemplateTable::baload() { | |
608 transition(itos, itos); | |
609 // Otos_i: index | |
610 // tos: array | |
611 __ index_check(O2, Otos_i, 0, G3_scratch, O3); | |
612 __ ldsb(O3, arrayOopDesc::base_offset_in_bytes(T_BYTE), Otos_i); | |
613 } | |
614 | |
615 | |
616 void TemplateTable::caload() { | |
617 transition(itos, itos); | |
618 // Otos_i: index | |
619 // tos: array | |
620 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
621 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
622 } | |
623 | |
624 void TemplateTable::fast_icaload() { | |
625 transition(vtos, itos); | |
626 // Otos_i: index | |
627 // tos: array | |
628 locals_index(G3_scratch); | |
629 __ access_local_int( G3_scratch, Otos_i ); | |
630 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
631 __ lduh(O3, arrayOopDesc::base_offset_in_bytes(T_CHAR), Otos_i); | |
632 } | |
633 | |
634 | |
635 void TemplateTable::saload() { | |
636 transition(itos, itos); | |
637 // Otos_i: index | |
638 // tos: array | |
639 __ index_check(O2, Otos_i, LogBytesPerShort, G3_scratch, O3); | |
640 __ ldsh(O3, arrayOopDesc::base_offset_in_bytes(T_SHORT), Otos_i); | |
641 } | |
642 | |
643 | |
644 void TemplateTable::iload(int n) { | |
645 transition(vtos, itos); | |
646 __ ld( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
647 } | |
648 | |
649 | |
650 void TemplateTable::lload(int n) { | |
651 transition(vtos, ltos); | |
652 assert(n+1 < Argument::n_register_parameters, "would need more code"); | |
653 __ load_unaligned_long(Llocals, Interpreter::local_offset_in_bytes(n+1), Otos_l); | |
654 } | |
655 | |
656 | |
657 void TemplateTable::fload(int n) { | |
658 transition(vtos, ftos); | |
659 assert(n < Argument::n_register_parameters, "would need more code"); | |
660 __ ldf( FloatRegisterImpl::S, Llocals, Interpreter::local_offset_in_bytes(n), Ftos_f ); | |
661 } | |
662 | |
663 | |
664 void TemplateTable::dload(int n) { | |
665 transition(vtos, dtos); | |
666 FloatRegister dst = Ftos_d; | |
667 __ load_unaligned_double(Llocals, Interpreter::local_offset_in_bytes(n+1), dst); | |
668 } | |
669 | |
670 | |
671 void TemplateTable::aload(int n) { | |
672 transition(vtos, atos); | |
673 __ ld_ptr( Llocals, Interpreter::local_offset_in_bytes(n), Otos_i ); | |
674 } | |
675 | |
676 | |
677 void TemplateTable::aload_0() { | |
678 transition(vtos, atos); | |
679 | |
680 // According to bytecode histograms, the pairs: | |
681 // | |
682 // _aload_0, _fast_igetfield (itos) | |
683 // _aload_0, _fast_agetfield (atos) | |
684 // _aload_0, _fast_fgetfield (ftos) | |
685 // | |
686 // occur frequently. If RewriteFrequentPairs is set, the (slow) _aload_0 | |
687 // bytecode checks the next bytecode and then rewrites the current | |
688 // bytecode into a pair bytecode; otherwise it rewrites the current | |
689 // bytecode into _fast_aload_0 that doesn't do the pair check anymore. | |
690 // | |
691 if (RewriteFrequentPairs) { | |
692 Label rewrite, done; | |
693 | |
694 // get next byte | |
695 __ ldub(at_bcp(Bytecodes::length_for(Bytecodes::_aload_0)), G3_scratch); | |
696 | |
697 // do actual aload_0 | |
698 aload(0); | |
699 | |
700 // if _getfield then wait with rewrite | |
3839 | 701 __ cmp_and_br_short(G3_scratch, (int)Bytecodes::_getfield, Assembler::equal, Assembler::pn, done); |
0 | 702 |
703 // if _igetfield then rewrite to _fast_iaccess_0 | |
704 assert(Bytecodes::java_code(Bytecodes::_fast_iaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
705 __ cmp(G3_scratch, (int)Bytecodes::_fast_igetfield); | |
706 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
707 __ delayed()->set(Bytecodes::_fast_iaccess_0, G4_scratch); | |
708 | |
709 // if _agetfield then rewrite to _fast_aaccess_0 | |
710 assert(Bytecodes::java_code(Bytecodes::_fast_aaccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
711 __ cmp(G3_scratch, (int)Bytecodes::_fast_agetfield); | |
712 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
713 __ delayed()->set(Bytecodes::_fast_aaccess_0, G4_scratch); | |
714 | |
715 // if _fgetfield then rewrite to _fast_faccess_0 | |
716 assert(Bytecodes::java_code(Bytecodes::_fast_faccess_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
717 __ cmp(G3_scratch, (int)Bytecodes::_fast_fgetfield); | |
718 __ br(Assembler::equal, false, Assembler::pn, rewrite); | |
719 __ delayed()->set(Bytecodes::_fast_faccess_0, G4_scratch); | |
720 | |
721 // else rewrite to _fast_aload0 | |
722 assert(Bytecodes::java_code(Bytecodes::_fast_aload_0) == Bytecodes::_aload_0, "adjust fast bytecode def"); | |
723 __ set(Bytecodes::_fast_aload_0, G4_scratch); | |
724 | |
725 // rewrite | |
726 // G4_scratch: fast bytecode | |
727 __ bind(rewrite); | |
728 patch_bytecode(Bytecodes::_aload_0, G4_scratch, G3_scratch, false); | |
729 __ bind(done); | |
730 } else { | |
731 aload(0); | |
732 } | |
733 } | |
734 | |
735 | |
736 void TemplateTable::istore() { | |
737 transition(itos, vtos); | |
738 locals_index(G3_scratch); | |
739 __ store_local_int( G3_scratch, Otos_i ); | |
740 } | |
741 | |
742 | |
743 void TemplateTable::lstore() { | |
744 transition(ltos, vtos); | |
745 locals_index(G3_scratch); | |
746 __ store_local_long( G3_scratch, Otos_l ); | |
747 } | |
748 | |
749 | |
750 void TemplateTable::fstore() { | |
751 transition(ftos, vtos); | |
752 locals_index(G3_scratch); | |
753 __ store_local_float( G3_scratch, Ftos_f ); | |
754 } | |
755 | |
756 | |
757 void TemplateTable::dstore() { | |
758 transition(dtos, vtos); | |
759 locals_index(G3_scratch); | |
760 __ store_local_double( G3_scratch, Ftos_d ); | |
761 } | |
762 | |
763 | |
764 void TemplateTable::astore() { | |
765 transition(vtos, vtos); | |
1506 | 766 __ load_ptr(0, Otos_i); |
767 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 768 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
769 locals_index(G3_scratch); | |
1506 | 770 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 771 } |
772 | |
773 | |
774 void TemplateTable::wide_istore() { | |
775 transition(vtos, vtos); | |
776 __ pop_i(); | |
777 locals_index_wide(G3_scratch); | |
778 __ store_local_int( G3_scratch, Otos_i ); | |
779 } | |
780 | |
781 | |
782 void TemplateTable::wide_lstore() { | |
783 transition(vtos, vtos); | |
784 __ pop_l(); | |
785 locals_index_wide(G3_scratch); | |
786 __ store_local_long( G3_scratch, Otos_l ); | |
787 } | |
788 | |
789 | |
790 void TemplateTable::wide_fstore() { | |
791 transition(vtos, vtos); | |
792 __ pop_f(); | |
793 locals_index_wide(G3_scratch); | |
794 __ store_local_float( G3_scratch, Ftos_f ); | |
795 } | |
796 | |
797 | |
798 void TemplateTable::wide_dstore() { | |
799 transition(vtos, vtos); | |
800 __ pop_d(); | |
801 locals_index_wide(G3_scratch); | |
802 __ store_local_double( G3_scratch, Ftos_d ); | |
803 } | |
804 | |
805 | |
806 void TemplateTable::wide_astore() { | |
807 transition(vtos, vtos); | |
1506 | 808 __ load_ptr(0, Otos_i); |
809 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 810 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
811 locals_index_wide(G3_scratch); | |
1506 | 812 __ store_local_ptr(G3_scratch, Otos_i); |
0 | 813 } |
814 | |
815 | |
816 void TemplateTable::iastore() { | |
817 transition(itos, vtos); | |
818 __ pop_i(O2); // index | |
819 // Otos_i: val | |
820 // O3: array | |
821 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
822 __ st(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_INT)); | |
823 } | |
824 | |
825 | |
826 void TemplateTable::lastore() { | |
827 transition(ltos, vtos); | |
828 __ pop_i(O2); // index | |
829 // Otos_l: val | |
830 // O3: array | |
831 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
832 __ st_long(Otos_l, O2, arrayOopDesc::base_offset_in_bytes(T_LONG)); | |
833 } | |
834 | |
835 | |
836 void TemplateTable::fastore() { | |
837 transition(ftos, vtos); | |
838 __ pop_i(O2); // index | |
839 // Ftos_f: val | |
840 // O3: array | |
841 __ index_check(O3, O2, LogBytesPerInt, G3_scratch, O2); | |
842 __ stf(FloatRegisterImpl::S, Ftos_f, O2, arrayOopDesc::base_offset_in_bytes(T_FLOAT)); | |
843 } | |
844 | |
845 | |
846 void TemplateTable::dastore() { | |
847 transition(dtos, vtos); | |
848 __ pop_i(O2); // index | |
849 // Fos_d: val | |
850 // O3: array | |
851 __ index_check(O3, O2, LogBytesPerLong, G3_scratch, O2); | |
852 __ stf(FloatRegisterImpl::D, Ftos_d, O2, arrayOopDesc::base_offset_in_bytes(T_DOUBLE)); | |
853 } | |
854 | |
855 | |
856 void TemplateTable::aastore() { | |
857 Label store_ok, is_null, done; | |
858 transition(vtos, vtos); | |
859 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
860 __ ld(Lesp, Interpreter::expr_offset_in_bytes(1), O2); // get index | |
861 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(2), O3); // get array | |
862 // Otos_i: val | |
863 // O2: index | |
864 // O3: array | |
865 __ verify_oop(Otos_i); | |
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866 __ index_check_without_pop(O3, O2, UseCompressedOops ? 2 : LogBytesPerWord, G3_scratch, O1); |
0 | 867 |
868 // do array store check - check for NULL value first | |
3839 | 869 __ br_null_short( Otos_i, Assembler::pn, is_null ); |
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870 |
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871 __ load_klass(O3, O4); // get array klass |
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872 __ load_klass(Otos_i, O5); // get value klass |
0 | 873 |
874 // do fast instanceof cache test | |
875 | |
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876 __ ld_ptr(O4, in_bytes(ObjArrayKlass::element_klass_offset()), O4); |
0 | 877 |
878 assert(Otos_i == O0, "just checking"); | |
879 | |
880 // Otos_i: value | |
881 // O1: addr - offset | |
882 // O2: index | |
883 // O3: array | |
884 // O4: array element klass | |
885 // O5: value klass | |
886 | |
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887 // Address element(O1, 0, arrayOopDesc::base_offset_in_bytes(T_OBJECT)); |
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888 |
0 | 889 // Generate a fast subtype check. Branch to store_ok if no |
890 // failure. Throw if failure. | |
891 __ gen_subtype_check( O5, O4, G3_scratch, G4_scratch, G1_scratch, store_ok ); | |
892 | |
893 // Not a subtype; so must throw exception | |
894 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ArrayStoreException_entry, G3_scratch ); | |
895 | |
896 // Store is OK. | |
897 __ bind(store_ok); | |
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898 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), Otos_i, G3_scratch, _bs->kind(), true); |
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899 |
3839 | 900 __ ba(done); |
1506 | 901 __ delayed()->inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 902 |
903 __ bind(is_null); | |
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904 do_oop_store(_masm, O1, noreg, arrayOopDesc::base_offset_in_bytes(T_OBJECT), G0, G4_scratch, _bs->kind(), true); |
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905 |
0 | 906 __ profile_null_seen(G3_scratch); |
1506 | 907 __ inc(Lesp, 3* Interpreter::stackElementSize); // adj sp (pops array, index and value) |
0 | 908 __ bind(done); |
909 } | |
910 | |
911 | |
912 void TemplateTable::bastore() { | |
913 transition(itos, vtos); | |
914 __ pop_i(O2); // index | |
915 // Otos_i: val | |
916 // O3: array | |
917 __ index_check(O3, O2, 0, G3_scratch, O2); | |
918 __ stb(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_BYTE)); | |
919 } | |
920 | |
921 | |
922 void TemplateTable::castore() { | |
923 transition(itos, vtos); | |
924 __ pop_i(O2); // index | |
925 // Otos_i: val | |
926 // O3: array | |
927 __ index_check(O3, O2, LogBytesPerShort, G3_scratch, O2); | |
928 __ sth(Otos_i, O2, arrayOopDesc::base_offset_in_bytes(T_CHAR)); | |
929 } | |
930 | |
931 | |
932 void TemplateTable::sastore() { | |
933 // %%%%% Factor across platform | |
934 castore(); | |
935 } | |
936 | |
937 | |
938 void TemplateTable::istore(int n) { | |
939 transition(itos, vtos); | |
940 __ st(Otos_i, Llocals, Interpreter::local_offset_in_bytes(n)); | |
941 } | |
942 | |
943 | |
944 void TemplateTable::lstore(int n) { | |
945 transition(ltos, vtos); | |
946 assert(n+1 < Argument::n_register_parameters, "only handle register cases"); | |
947 __ store_unaligned_long(Otos_l, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
948 | |
949 } | |
950 | |
951 | |
952 void TemplateTable::fstore(int n) { | |
953 transition(ftos, vtos); | |
954 assert(n < Argument::n_register_parameters, "only handle register cases"); | |
955 __ stf(FloatRegisterImpl::S, Ftos_f, Llocals, Interpreter::local_offset_in_bytes(n)); | |
956 } | |
957 | |
958 | |
959 void TemplateTable::dstore(int n) { | |
960 transition(dtos, vtos); | |
961 FloatRegister src = Ftos_d; | |
962 __ store_unaligned_double(src, Llocals, Interpreter::local_offset_in_bytes(n+1)); | |
963 } | |
964 | |
965 | |
966 void TemplateTable::astore(int n) { | |
967 transition(vtos, vtos); | |
1506 | 968 __ load_ptr(0, Otos_i); |
969 __ inc(Lesp, Interpreter::stackElementSize); | |
0 | 970 __ verify_oop_or_return_address(Otos_i, G3_scratch); |
1506 | 971 __ store_local_ptr(n, Otos_i); |
0 | 972 } |
973 | |
974 | |
975 void TemplateTable::pop() { | |
976 transition(vtos, vtos); | |
1506 | 977 __ inc(Lesp, Interpreter::stackElementSize); |
0 | 978 } |
979 | |
980 | |
981 void TemplateTable::pop2() { | |
982 transition(vtos, vtos); | |
1506 | 983 __ inc(Lesp, 2 * Interpreter::stackElementSize); |
0 | 984 } |
985 | |
986 | |
987 void TemplateTable::dup() { | |
988 transition(vtos, vtos); | |
989 // stack: ..., a | |
990 // load a and tag | |
1506 | 991 __ load_ptr(0, Otos_i); |
992 __ push_ptr(Otos_i); | |
0 | 993 // stack: ..., a, a |
994 } | |
995 | |
996 | |
997 void TemplateTable::dup_x1() { | |
998 transition(vtos, vtos); | |
999 // stack: ..., a, b | |
1506 | 1000 __ load_ptr( 1, G3_scratch); // get a |
1001 __ load_ptr( 0, Otos_l1); // get b | |
1002 __ store_ptr(1, Otos_l1); // put b | |
1003 __ store_ptr(0, G3_scratch); // put a - like swap | |
1004 __ push_ptr(Otos_l1); // push b | |
0 | 1005 // stack: ..., b, a, b |
1006 } | |
1007 | |
1008 | |
1009 void TemplateTable::dup_x2() { | |
1010 transition(vtos, vtos); | |
1011 // stack: ..., a, b, c | |
1012 // get c and push on stack, reuse registers | |
1506 | 1013 __ load_ptr( 0, G3_scratch); // get c |
1014 __ push_ptr(G3_scratch); // push c with tag | |
0 | 1015 // stack: ..., a, b, c, c (c in reg) (Lesp - 4) |
1016 // (stack offsets n+1 now) | |
1506 | 1017 __ load_ptr( 3, Otos_l1); // get a |
1018 __ store_ptr(3, G3_scratch); // put c at 3 | |
0 | 1019 // stack: ..., c, b, c, c (a in reg) |
1506 | 1020 __ load_ptr( 2, G3_scratch); // get b |
1021 __ store_ptr(2, Otos_l1); // put a at 2 | |
0 | 1022 // stack: ..., c, a, c, c (b in reg) |
1506 | 1023 __ store_ptr(1, G3_scratch); // put b at 1 |
0 | 1024 // stack: ..., c, a, b, c |
1025 } | |
1026 | |
1027 | |
1028 void TemplateTable::dup2() { | |
1029 transition(vtos, vtos); | |
1506 | 1030 __ load_ptr(1, G3_scratch); // get a |
1031 __ load_ptr(0, Otos_l1); // get b | |
1032 __ push_ptr(G3_scratch); // push a | |
1033 __ push_ptr(Otos_l1); // push b | |
0 | 1034 // stack: ..., a, b, a, b |
1035 } | |
1036 | |
1037 | |
1038 void TemplateTable::dup2_x1() { | |
1039 transition(vtos, vtos); | |
1040 // stack: ..., a, b, c | |
1506 | 1041 __ load_ptr( 1, Lscratch); // get b |
1042 __ load_ptr( 2, Otos_l1); // get a | |
1043 __ store_ptr(2, Lscratch); // put b at a | |
0 | 1044 // stack: ..., b, b, c |
1506 | 1045 __ load_ptr( 0, G3_scratch); // get c |
1046 __ store_ptr(1, G3_scratch); // put c at b | |
0 | 1047 // stack: ..., b, c, c |
1506 | 1048 __ store_ptr(0, Otos_l1); // put a at c |
0 | 1049 // stack: ..., b, c, a |
1506 | 1050 __ push_ptr(Lscratch); // push b |
1051 __ push_ptr(G3_scratch); // push c | |
0 | 1052 // stack: ..., b, c, a, b, c |
1053 } | |
1054 | |
1055 | |
1056 // The spec says that these types can be a mixture of category 1 (1 word) | |
1057 // types and/or category 2 types (long and doubles) | |
1058 void TemplateTable::dup2_x2() { | |
1059 transition(vtos, vtos); | |
1060 // stack: ..., a, b, c, d | |
1506 | 1061 __ load_ptr( 1, Lscratch); // get c |
1062 __ load_ptr( 3, Otos_l1); // get a | |
1063 __ store_ptr(3, Lscratch); // put c at 3 | |
1064 __ store_ptr(1, Otos_l1); // put a at 1 | |
0 | 1065 // stack: ..., c, b, a, d |
1506 | 1066 __ load_ptr( 2, G3_scratch); // get b |
1067 __ load_ptr( 0, Otos_l1); // get d | |
1068 __ store_ptr(0, G3_scratch); // put b at 0 | |
1069 __ store_ptr(2, Otos_l1); // put d at 2 | |
0 | 1070 // stack: ..., c, d, a, b |
1506 | 1071 __ push_ptr(Lscratch); // push c |
1072 __ push_ptr(Otos_l1); // push d | |
0 | 1073 // stack: ..., c, d, a, b, c, d |
1074 } | |
1075 | |
1076 | |
1077 void TemplateTable::swap() { | |
1078 transition(vtos, vtos); | |
1079 // stack: ..., a, b | |
1506 | 1080 __ load_ptr( 1, G3_scratch); // get a |
1081 __ load_ptr( 0, Otos_l1); // get b | |
1082 __ store_ptr(0, G3_scratch); // put b | |
1083 __ store_ptr(1, Otos_l1); // put a | |
0 | 1084 // stack: ..., b, a |
1085 } | |
1086 | |
1087 | |
1088 void TemplateTable::iop2(Operation op) { | |
1089 transition(itos, itos); | |
1090 __ pop_i(O1); | |
1091 switch (op) { | |
1092 case add: __ add(O1, Otos_i, Otos_i); break; | |
1093 case sub: __ sub(O1, Otos_i, Otos_i); break; | |
1094 // %%%%% Mul may not exist: better to call .mul? | |
1095 case mul: __ smul(O1, Otos_i, Otos_i); break; | |
1506 | 1096 case _and: __ and3(O1, Otos_i, Otos_i); break; |
1097 case _or: __ or3(O1, Otos_i, Otos_i); break; | |
1098 case _xor: __ xor3(O1, Otos_i, Otos_i); break; | |
0 | 1099 case shl: __ sll(O1, Otos_i, Otos_i); break; |
1100 case shr: __ sra(O1, Otos_i, Otos_i); break; | |
1101 case ushr: __ srl(O1, Otos_i, Otos_i); break; | |
1102 default: ShouldNotReachHere(); | |
1103 } | |
1104 } | |
1105 | |
1106 | |
1107 void TemplateTable::lop2(Operation op) { | |
1108 transition(ltos, ltos); | |
1109 __ pop_l(O2); | |
1110 switch (op) { | |
1111 #ifdef _LP64 | |
1506 | 1112 case add: __ add(O2, Otos_l, Otos_l); break; |
1113 case sub: __ sub(O2, Otos_l, Otos_l); break; | |
1114 case _and: __ and3(O2, Otos_l, Otos_l); break; | |
1115 case _or: __ or3(O2, Otos_l, Otos_l); break; | |
1116 case _xor: __ xor3(O2, Otos_l, Otos_l); break; | |
0 | 1117 #else |
1118 case add: __ addcc(O3, Otos_l2, Otos_l2); __ addc(O2, Otos_l1, Otos_l1); break; | |
1119 case sub: __ subcc(O3, Otos_l2, Otos_l2); __ subc(O2, Otos_l1, Otos_l1); break; | |
1506 | 1120 case _and: __ and3(O3, Otos_l2, Otos_l2); __ and3(O2, Otos_l1, Otos_l1); break; |
1121 case _or: __ or3(O3, Otos_l2, Otos_l2); __ or3(O2, Otos_l1, Otos_l1); break; | |
1122 case _xor: __ xor3(O3, Otos_l2, Otos_l2); __ xor3(O2, Otos_l1, Otos_l1); break; | |
0 | 1123 #endif |
1124 default: ShouldNotReachHere(); | |
1125 } | |
1126 } | |
1127 | |
1128 | |
1129 void TemplateTable::idiv() { | |
1130 // %%%%% Later: ForSPARC/V7 call .sdiv library routine, | |
1131 // %%%%% Use ldsw...sdivx on pure V9 ABI. 64 bit safe. | |
1132 | |
1133 transition(itos, itos); | |
1134 __ pop_i(O1); // get 1st op | |
1135 | |
1136 // Y contains upper 32 bits of result, set it to 0 or all ones | |
1137 __ wry(G0); | |
1138 __ mov(~0, G3_scratch); | |
1139 | |
1140 __ tst(O1); | |
1141 Label neg; | |
1142 __ br(Assembler::negative, true, Assembler::pn, neg); | |
1143 __ delayed()->wry(G3_scratch); | |
1144 __ bind(neg); | |
1145 | |
1146 Label ok; | |
1147 __ tst(Otos_i); | |
1148 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch ); | |
1149 | |
1150 const int min_int = 0x80000000; | |
1151 Label regular; | |
1152 __ cmp(Otos_i, -1); | |
1153 __ br(Assembler::notEqual, false, Assembler::pt, regular); | |
1154 #ifdef _LP64 | |
1155 // Don't put set in delay slot | |
1156 // Set will turn into multiple instructions in 64 bit mode | |
1157 __ delayed()->nop(); | |
1158 __ set(min_int, G4_scratch); | |
1159 #else | |
1160 __ delayed()->set(min_int, G4_scratch); | |
1161 #endif | |
1162 Label done; | |
1163 __ cmp(O1, G4_scratch); | |
1164 __ br(Assembler::equal, true, Assembler::pt, done); | |
1165 __ delayed()->mov(O1, Otos_i); // (mov only executed if branch taken) | |
1166 | |
1167 __ bind(regular); | |
1168 __ sdiv(O1, Otos_i, Otos_i); // note: irem uses O1 after this instruction! | |
1169 __ bind(done); | |
1170 } | |
1171 | |
1172 | |
1173 void TemplateTable::irem() { | |
1174 transition(itos, itos); | |
1175 __ mov(Otos_i, O2); // save divisor | |
1176 idiv(); // %%%% Hack: exploits fact that idiv leaves dividend in O1 | |
1177 __ smul(Otos_i, O2, Otos_i); | |
1178 __ sub(O1, Otos_i, Otos_i); | |
1179 } | |
1180 | |
1181 | |
1182 void TemplateTable::lmul() { | |
1183 transition(ltos, ltos); | |
1184 __ pop_l(O2); | |
1185 #ifdef _LP64 | |
1186 __ mulx(Otos_l, O2, Otos_l); | |
1187 #else | |
1188 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lmul)); | |
1189 #endif | |
1190 | |
1191 } | |
1192 | |
1193 | |
1194 void TemplateTable::ldiv() { | |
1195 transition(ltos, ltos); | |
1196 | |
1197 // check for zero | |
1198 __ pop_l(O2); | |
1199 #ifdef _LP64 | |
1200 __ tst(Otos_l); | |
1201 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1202 __ sdivx(O2, Otos_l, Otos_l); | |
1203 #else | |
1204 __ orcc(Otos_l1, Otos_l2, G0); | |
1205 __ throw_if_not_icc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1206 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::ldiv)); | |
1207 #endif | |
1208 } | |
1209 | |
1210 | |
1211 void TemplateTable::lrem() { | |
1212 transition(ltos, ltos); | |
1213 | |
1214 // check for zero | |
1215 __ pop_l(O2); | |
1216 #ifdef _LP64 | |
1217 __ tst(Otos_l); | |
1218 __ throw_if_not_xcc( Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1219 __ sdivx(O2, Otos_l, Otos_l2); | |
1220 __ mulx (Otos_l2, Otos_l, Otos_l2); | |
1221 __ sub (O2, Otos_l2, Otos_l); | |
1222 #else | |
1223 __ orcc(Otos_l1, Otos_l2, G0); | |
1224 __ throw_if_not_icc(Assembler::notZero, Interpreter::_throw_ArithmeticException_entry, G3_scratch); | |
1225 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::lrem)); | |
1226 #endif | |
1227 } | |
1228 | |
1229 | |
1230 void TemplateTable::lshl() { | |
1231 transition(itos, ltos); // %%%% could optimize, fill delay slot or opt for ultra | |
1232 | |
1233 __ pop_l(O2); // shift value in O2, O3 | |
1234 #ifdef _LP64 | |
1235 __ sllx(O2, Otos_i, Otos_l); | |
1236 #else | |
1237 __ lshl(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1238 #endif | |
1239 } | |
1240 | |
1241 | |
1242 void TemplateTable::lshr() { | |
1243 transition(itos, ltos); // %%%% see lshl comment | |
1244 | |
1245 __ pop_l(O2); // shift value in O2, O3 | |
1246 #ifdef _LP64 | |
1247 __ srax(O2, Otos_i, Otos_l); | |
1248 #else | |
1249 __ lshr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1250 #endif | |
1251 } | |
1252 | |
1253 | |
1254 | |
1255 void TemplateTable::lushr() { | |
1256 transition(itos, ltos); // %%%% see lshl comment | |
1257 | |
1258 __ pop_l(O2); // shift value in O2, O3 | |
1259 #ifdef _LP64 | |
1260 __ srlx(O2, Otos_i, Otos_l); | |
1261 #else | |
1262 __ lushr(O2, O3, Otos_i, Otos_l1, Otos_l2, O4); | |
1263 #endif | |
1264 } | |
1265 | |
1266 | |
1267 void TemplateTable::fop2(Operation op) { | |
1268 transition(ftos, ftos); | |
1269 switch (op) { | |
1270 case add: __ pop_f(F4); __ fadd(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1271 case sub: __ pop_f(F4); __ fsub(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1272 case mul: __ pop_f(F4); __ fmul(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1273 case div: __ pop_f(F4); __ fdiv(FloatRegisterImpl::S, F4, Ftos_f, Ftos_f); break; | |
1274 case rem: | |
1275 assert(Ftos_f == F0, "just checking"); | |
1276 #ifdef _LP64 | |
1277 // LP64 calling conventions use F1, F3 for passing 2 floats | |
1278 __ pop_f(F1); | |
1279 __ fmov(FloatRegisterImpl::S, Ftos_f, F3); | |
1280 #else | |
1281 __ pop_i(O0); | |
1282 __ stf(FloatRegisterImpl::S, Ftos_f, __ d_tmp); | |
1283 __ ld( __ d_tmp, O1 ); | |
1284 #endif | |
1285 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::frem)); | |
1286 assert( Ftos_f == F0, "fix this code" ); | |
1287 break; | |
1288 | |
1289 default: ShouldNotReachHere(); | |
1290 } | |
1291 } | |
1292 | |
1293 | |
1294 void TemplateTable::dop2(Operation op) { | |
1295 transition(dtos, dtos); | |
1296 switch (op) { | |
1297 case add: __ pop_d(F4); __ fadd(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1298 case sub: __ pop_d(F4); __ fsub(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1299 case mul: __ pop_d(F4); __ fmul(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1300 case div: __ pop_d(F4); __ fdiv(FloatRegisterImpl::D, F4, Ftos_d, Ftos_d); break; | |
1301 case rem: | |
1302 #ifdef _LP64 | |
1303 // Pass arguments in D0, D2 | |
1304 __ fmov(FloatRegisterImpl::D, Ftos_f, F2 ); | |
1305 __ pop_d( F0 ); | |
1306 #else | |
1307 // Pass arguments in O0O1, O2O3 | |
1308 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1309 __ ldd( __ d_tmp, O2 ); | |
1310 __ pop_d(Ftos_f); | |
1311 __ stf(FloatRegisterImpl::D, Ftos_f, __ d_tmp); | |
1312 __ ldd( __ d_tmp, O0 ); | |
1313 #endif | |
1314 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::drem)); | |
1315 assert( Ftos_d == F0, "fix this code" ); | |
1316 break; | |
1317 | |
1318 default: ShouldNotReachHere(); | |
1319 } | |
1320 } | |
1321 | |
1322 | |
1323 void TemplateTable::ineg() { | |
1324 transition(itos, itos); | |
1325 __ neg(Otos_i); | |
1326 } | |
1327 | |
1328 | |
1329 void TemplateTable::lneg() { | |
1330 transition(ltos, ltos); | |
1331 #ifdef _LP64 | |
1332 __ sub(G0, Otos_l, Otos_l); | |
1333 #else | |
1334 __ lneg(Otos_l1, Otos_l2); | |
1335 #endif | |
1336 } | |
1337 | |
1338 | |
1339 void TemplateTable::fneg() { | |
1340 transition(ftos, ftos); | |
1341 __ fneg(FloatRegisterImpl::S, Ftos_f); | |
1342 } | |
1343 | |
1344 | |
1345 void TemplateTable::dneg() { | |
1346 transition(dtos, dtos); | |
1347 // v8 has fnegd if source and dest are the same | |
1348 __ fneg(FloatRegisterImpl::D, Ftos_f); | |
1349 } | |
1350 | |
1351 | |
1352 void TemplateTable::iinc() { | |
1353 transition(vtos, vtos); | |
1354 locals_index(G3_scratch); | |
1355 __ ldsb(Lbcp, 2, O2); // load constant | |
1356 __ access_local_int(G3_scratch, Otos_i); | |
1357 __ add(Otos_i, O2, Otos_i); | |
1506 | 1358 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1359 } |
1360 | |
1361 | |
1362 void TemplateTable::wide_iinc() { | |
1363 transition(vtos, vtos); | |
1364 locals_index_wide(G3_scratch); | |
1365 __ get_2_byte_integer_at_bcp( 4, O2, O3, InterpreterMacroAssembler::Signed); | |
1366 __ access_local_int(G3_scratch, Otos_i); | |
1367 __ add(Otos_i, O3, Otos_i); | |
1506 | 1368 __ st(Otos_i, G3_scratch, 0); // access_local_int puts E.A. in G3_scratch |
0 | 1369 } |
1370 | |
1371 | |
1372 void TemplateTable::convert() { | |
1373 // %%%%% Factor this first part accross platforms | |
1374 #ifdef ASSERT | |
1375 TosState tos_in = ilgl; | |
1376 TosState tos_out = ilgl; | |
1377 switch (bytecode()) { | |
1378 case Bytecodes::_i2l: // fall through | |
1379 case Bytecodes::_i2f: // fall through | |
1380 case Bytecodes::_i2d: // fall through | |
1381 case Bytecodes::_i2b: // fall through | |
1382 case Bytecodes::_i2c: // fall through | |
1383 case Bytecodes::_i2s: tos_in = itos; break; | |
1384 case Bytecodes::_l2i: // fall through | |
1385 case Bytecodes::_l2f: // fall through | |
1386 case Bytecodes::_l2d: tos_in = ltos; break; | |
1387 case Bytecodes::_f2i: // fall through | |
1388 case Bytecodes::_f2l: // fall through | |
1389 case Bytecodes::_f2d: tos_in = ftos; break; | |
1390 case Bytecodes::_d2i: // fall through | |
1391 case Bytecodes::_d2l: // fall through | |
1392 case Bytecodes::_d2f: tos_in = dtos; break; | |
1393 default : ShouldNotReachHere(); | |
1394 } | |
1395 switch (bytecode()) { | |
1396 case Bytecodes::_l2i: // fall through | |
1397 case Bytecodes::_f2i: // fall through | |
1398 case Bytecodes::_d2i: // fall through | |
1399 case Bytecodes::_i2b: // fall through | |
1400 case Bytecodes::_i2c: // fall through | |
1401 case Bytecodes::_i2s: tos_out = itos; break; | |
1402 case Bytecodes::_i2l: // fall through | |
1403 case Bytecodes::_f2l: // fall through | |
1404 case Bytecodes::_d2l: tos_out = ltos; break; | |
1405 case Bytecodes::_i2f: // fall through | |
1406 case Bytecodes::_l2f: // fall through | |
1407 case Bytecodes::_d2f: tos_out = ftos; break; | |
1408 case Bytecodes::_i2d: // fall through | |
1409 case Bytecodes::_l2d: // fall through | |
1410 case Bytecodes::_f2d: tos_out = dtos; break; | |
1411 default : ShouldNotReachHere(); | |
1412 } | |
1413 transition(tos_in, tos_out); | |
1414 #endif | |
1415 | |
1416 | |
1417 // Conversion | |
1418 Label done; | |
1419 switch (bytecode()) { | |
1420 case Bytecodes::_i2l: | |
1421 #ifdef _LP64 | |
1422 // Sign extend the 32 bits | |
1423 __ sra ( Otos_i, 0, Otos_l ); | |
1424 #else | |
1425 __ addcc(Otos_i, 0, Otos_l2); | |
1426 __ br(Assembler::greaterEqual, true, Assembler::pt, done); | |
1427 __ delayed()->clr(Otos_l1); | |
1428 __ set(~0, Otos_l1); | |
1429 #endif | |
1430 break; | |
1431 | |
1432 case Bytecodes::_i2f: | |
1433 __ st(Otos_i, __ d_tmp ); | |
1434 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1435 __ fitof(FloatRegisterImpl::S, F0, Ftos_f); | |
1436 break; | |
1437 | |
1438 case Bytecodes::_i2d: | |
1439 __ st(Otos_i, __ d_tmp); | |
1440 __ ldf(FloatRegisterImpl::S, __ d_tmp, F0); | |
1441 __ fitof(FloatRegisterImpl::D, F0, Ftos_f); | |
1442 break; | |
1443 | |
1444 case Bytecodes::_i2b: | |
1445 __ sll(Otos_i, 24, Otos_i); | |
1446 __ sra(Otos_i, 24, Otos_i); | |
1447 break; | |
1448 | |
1449 case Bytecodes::_i2c: | |
1450 __ sll(Otos_i, 16, Otos_i); | |
1451 __ srl(Otos_i, 16, Otos_i); | |
1452 break; | |
1453 | |
1454 case Bytecodes::_i2s: | |
1455 __ sll(Otos_i, 16, Otos_i); | |
1456 __ sra(Otos_i, 16, Otos_i); | |
1457 break; | |
1458 | |
1459 case Bytecodes::_l2i: | |
1460 #ifndef _LP64 | |
1461 __ mov(Otos_l2, Otos_i); | |
1462 #else | |
1463 // Sign-extend into the high 32 bits | |
1464 __ sra(Otos_l, 0, Otos_i); | |
1465 #endif | |
1466 break; | |
1467 | |
1468 case Bytecodes::_l2f: | |
1469 case Bytecodes::_l2d: | |
1470 __ st_long(Otos_l, __ d_tmp); | |
1471 __ ldf(FloatRegisterImpl::D, __ d_tmp, Ftos_d); | |
1472 | |
1473 if (VM_Version::v9_instructions_work()) { | |
1474 if (bytecode() == Bytecodes::_l2f) { | |
1475 __ fxtof(FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1476 } else { | |
1477 __ fxtof(FloatRegisterImpl::D, Ftos_d, Ftos_d); | |
1478 } | |
1479 } else { | |
1480 __ call_VM_leaf( | |
1481 Lscratch, | |
1482 bytecode() == Bytecodes::_l2f | |
1483 ? CAST_FROM_FN_PTR(address, SharedRuntime::l2f) | |
1484 : CAST_FROM_FN_PTR(address, SharedRuntime::l2d) | |
1485 ); | |
1486 } | |
1487 break; | |
1488 | |
1489 case Bytecodes::_f2i: { | |
1490 Label isNaN; | |
1491 // result must be 0 if value is NaN; test by comparing value to itself | |
1492 __ fcmp(FloatRegisterImpl::S, Assembler::fcc0, Ftos_f, Ftos_f); | |
1493 // According to the v8 manual, you have to have a non-fp instruction | |
1494 // between fcmp and fb. | |
1495 if (!VM_Version::v9_instructions_work()) { | |
1496 __ nop(); | |
1497 } | |
1498 __ fb(Assembler::f_unordered, true, Assembler::pn, isNaN); | |
1499 __ delayed()->clr(Otos_i); // NaN | |
1500 __ ftoi(FloatRegisterImpl::S, Ftos_f, F30); | |
1501 __ stf(FloatRegisterImpl::S, F30, __ d_tmp); | |
1502 __ ld(__ d_tmp, Otos_i); | |
1503 __ bind(isNaN); | |
1504 } | |
1505 break; | |
1506 | |
1507 case Bytecodes::_f2l: | |
1508 // must uncache tos | |
1509 __ push_f(); | |
1510 #ifdef _LP64 | |
1511 __ pop_f(F1); | |
1512 #else | |
1513 __ pop_i(O0); | |
1514 #endif | |
1515 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::f2l)); | |
1516 break; | |
1517 | |
1518 case Bytecodes::_f2d: | |
1519 __ ftof( FloatRegisterImpl::S, FloatRegisterImpl::D, Ftos_f, Ftos_f); | |
1520 break; | |
1521 | |
1522 case Bytecodes::_d2i: | |
1523 case Bytecodes::_d2l: | |
1524 // must uncache tos | |
1525 __ push_d(); | |
1526 #ifdef _LP64 | |
1527 // LP64 calling conventions pass first double arg in D0 | |
1528 __ pop_d( Ftos_d ); | |
1529 #else | |
1530 __ pop_i( O0 ); | |
1531 __ pop_i( O1 ); | |
1532 #endif | |
1533 __ call_VM_leaf(Lscratch, | |
1534 bytecode() == Bytecodes::_d2i | |
1535 ? CAST_FROM_FN_PTR(address, SharedRuntime::d2i) | |
1536 : CAST_FROM_FN_PTR(address, SharedRuntime::d2l)); | |
1537 break; | |
1538 | |
1539 case Bytecodes::_d2f: | |
1540 if (VM_Version::v9_instructions_work()) { | |
1541 __ ftof( FloatRegisterImpl::D, FloatRegisterImpl::S, Ftos_d, Ftos_f); | |
1542 } | |
1543 else { | |
1544 // must uncache tos | |
1545 __ push_d(); | |
1546 __ pop_i(O0); | |
1547 __ pop_i(O1); | |
1548 __ call_VM_leaf(Lscratch, CAST_FROM_FN_PTR(address, SharedRuntime::d2f)); | |
1549 } | |
1550 break; | |
1551 | |
1552 default: ShouldNotReachHere(); | |
1553 } | |
1554 __ bind(done); | |
1555 } | |
1556 | |
1557 | |
1558 void TemplateTable::lcmp() { | |
1559 transition(ltos, itos); | |
1560 | |
1561 #ifdef _LP64 | |
1562 __ pop_l(O1); // pop off value 1, value 2 is in O0 | |
1563 __ lcmp( O1, Otos_l, Otos_i ); | |
1564 #else | |
1565 __ pop_l(O2); // cmp O2,3 to O0,1 | |
1566 __ lcmp( O2, O3, Otos_l1, Otos_l2, Otos_i ); | |
1567 #endif | |
1568 } | |
1569 | |
1570 | |
1571 void TemplateTable::float_cmp(bool is_float, int unordered_result) { | |
1572 | |
1573 if (is_float) __ pop_f(F2); | |
1574 else __ pop_d(F2); | |
1575 | |
1576 assert(Ftos_f == F0 && Ftos_d == F0, "alias checking:"); | |
1577 | |
1578 __ float_cmp( is_float, unordered_result, F2, F0, Otos_i ); | |
1579 } | |
1580 | |
1581 void TemplateTable::branch(bool is_jsr, bool is_wide) { | |
1582 // Note: on SPARC, we use InterpreterMacroAssembler::if_cmp also. | |
1583 __ verify_thread(); | |
1584 | |
1585 const Register O2_bumped_count = O2; | |
1586 __ profile_taken_branch(G3_scratch, O2_bumped_count); | |
1587 | |
1588 // get (wide) offset to O1_disp | |
1589 const Register O1_disp = O1; | |
1590 if (is_wide) __ get_4_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::set_CC); | |
1591 else __ get_2_byte_integer_at_bcp( 1, G4_scratch, O1_disp, InterpreterMacroAssembler::Signed, InterpreterMacroAssembler::set_CC); | |
1592 | |
1593 // Handle all the JSR stuff here, then exit. | |
1594 // It's much shorter and cleaner than intermingling with the | |
605 | 1595 // non-JSR normal-branch stuff occurring below. |
0 | 1596 if( is_jsr ) { |
1597 // compute return address as bci in Otos_i | |
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1598 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1599 __ sub(Lbcp, G3_scratch, G3_scratch); |
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1600 __ sub(G3_scratch, in_bytes(ConstMethod::codes_offset()) - (is_wide ? 5 : 3), Otos_i); |
0 | 1601 |
1602 // Bump Lbcp to target of JSR | |
1603 __ add(Lbcp, O1_disp, Lbcp); | |
1604 // Push returnAddress for "ret" on stack | |
1506 | 1605 __ push_ptr(Otos_i); |
0 | 1606 // And away we go! |
1607 __ dispatch_next(vtos); | |
1608 return; | |
1609 } | |
1610 | |
1611 // Normal (non-jsr) branch handling | |
1612 | |
1613 // Save the current Lbcp | |
1614 const Register O0_cur_bcp = O0; | |
1615 __ mov( Lbcp, O0_cur_bcp ); | |
1616 | |
1783 | 1617 |
0 | 1618 bool increment_invocation_counter_for_backward_branches = UseCompiler && UseLoopCounter; |
1619 if ( increment_invocation_counter_for_backward_branches ) { | |
1620 Label Lforward; | |
1621 // check branch direction | |
1622 __ br( Assembler::positive, false, Assembler::pn, Lforward ); | |
1623 // Bump bytecode pointer by displacement (take the branch) | |
1624 __ delayed()->add( O1_disp, Lbcp, Lbcp ); // add to bc addr | |
1625 | |
1783 | 1626 if (TieredCompilation) { |
1627 Label Lno_mdo, Loverflow; | |
1628 int increment = InvocationCounter::count_increment; | |
1629 int mask = ((1 << Tier0BackedgeNotifyFreqLog) - 1) << InvocationCounter::count_shift; | |
1630 if (ProfileInterpreter) { | |
1631 // If no method data exists, go to profile_continue. | |
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1632 __ ld_ptr(Lmethod, Method::method_data_offset(), G4_scratch); |
3839 | 1633 __ br_null_short(G4_scratch, Assembler::pn, Lno_mdo); |
1783 | 1634 |
1635 // Increment backedge counter in the MDO | |
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1636 Address mdo_backedge_counter(G4_scratch, in_bytes(MethodData::backedge_counter_offset()) + |
1783 | 1637 in_bytes(InvocationCounter::counter_offset())); |
1638 __ increment_mask_and_jump(mdo_backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1639 Assembler::notZero, &Lforward); | |
3839 | 1640 __ ba_short(Loverflow); |
0 | 1641 } |
1783 | 1642 |
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1643 // If there's no MDO, increment counter in Method* |
1783 | 1644 __ bind(Lno_mdo); |
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1645 Address backedge_counter(Lmethod, in_bytes(Method::backedge_counter_offset()) + |
1783 | 1646 in_bytes(InvocationCounter::counter_offset())); |
1647 __ increment_mask_and_jump(backedge_counter, increment, mask, G3_scratch, Lscratch, | |
1648 Assembler::notZero, &Lforward); | |
1649 __ bind(Loverflow); | |
1650 | |
1651 // notify point for loop, pass branch bytecode | |
1652 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::frequency_counter_overflow), O0_cur_bcp); | |
1653 | |
1654 // Was an OSR adapter generated? | |
1655 // O0 = osr nmethod | |
3839 | 1656 __ br_null_short(O0, Assembler::pn, Lforward); |
1783 | 1657 |
1658 // Has the nmethod been invalidated already? | |
1659 __ ld(O0, nmethod::entry_bci_offset(), O2); | |
3839 | 1660 __ cmp_and_br_short(O2, InvalidOSREntryBci, Assembler::equal, Assembler::pn, Lforward); |
1783 | 1661 |
1662 // migrate the interpreter frame off of the stack | |
1663 | |
1664 __ mov(G2_thread, L7); | |
1665 // save nmethod | |
1666 __ mov(O0, L6); | |
1667 __ set_last_Java_frame(SP, noreg); | |
1668 __ call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, SharedRuntime::OSR_migration_begin), L7); | |
1669 __ reset_last_Java_frame(); | |
1670 __ mov(L7, G2_thread); | |
1671 | |
1672 // move OSR nmethod to I1 | |
1673 __ mov(L6, I1); | |
1674 | |
1675 // OSR buffer to I0 | |
1676 __ mov(O0, I0); | |
1677 | |
1678 // remove the interpreter frame | |
1679 __ restore(I5_savedSP, 0, SP); | |
1680 | |
1681 // Jump to the osr code. | |
1682 __ ld_ptr(O1, nmethod::osr_entry_point_offset(), O2); | |
1683 __ jmp(O2, G0); | |
1684 __ delayed()->nop(); | |
1685 | |
0 | 1686 } else { |
1783 | 1687 // Update Backedge branch separately from invocations |
1688 const Register G4_invoke_ctr = G4; | |
1689 __ increment_backedge_counter(G4_invoke_ctr, G1_scratch); | |
1690 if (ProfileInterpreter) { | |
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1691 __ test_invocation_counter_for_mdp(G4_invoke_ctr, G3_scratch, Lforward); |
1783 | 1692 if (UseOnStackReplacement) { |
1693 __ test_backedge_count_for_osr(O2_bumped_count, O0_cur_bcp, G3_scratch); | |
1694 } | |
1695 } else { | |
1696 if (UseOnStackReplacement) { | |
1697 __ test_backedge_count_for_osr(G4_invoke_ctr, O0_cur_bcp, G3_scratch); | |
1698 } | |
0 | 1699 } |
1700 } | |
1701 | |
1702 __ bind(Lforward); | |
1703 } else | |
1704 // Bump bytecode pointer by displacement (take the branch) | |
1705 __ add( O1_disp, Lbcp, Lbcp );// add to bc addr | |
1706 | |
1707 // continue with bytecode @ target | |
1708 // %%%%% Like Intel, could speed things up by moving bytecode fetch to code above, | |
1709 // %%%%% and changing dispatch_next to dispatch_only | |
1710 __ dispatch_next(vtos); | |
1711 } | |
1712 | |
1713 | |
1714 // Note Condition in argument is TemplateTable::Condition | |
1715 // arg scope is within class scope | |
1716 | |
1717 void TemplateTable::if_0cmp(Condition cc) { | |
1718 // no pointers, integer only! | |
1719 transition(itos, vtos); | |
1720 // assume branch is more often taken than not (loops use backward branches) | |
1721 __ cmp( Otos_i, 0); | |
1722 __ if_cmp(ccNot(cc), false); | |
1723 } | |
1724 | |
1725 | |
1726 void TemplateTable::if_icmp(Condition cc) { | |
1727 transition(itos, vtos); | |
1728 __ pop_i(O1); | |
1729 __ cmp(O1, Otos_i); | |
1730 __ if_cmp(ccNot(cc), false); | |
1731 } | |
1732 | |
1733 | |
1734 void TemplateTable::if_nullcmp(Condition cc) { | |
1735 transition(atos, vtos); | |
1736 __ tst(Otos_i); | |
1737 __ if_cmp(ccNot(cc), true); | |
1738 } | |
1739 | |
1740 | |
1741 void TemplateTable::if_acmp(Condition cc) { | |
1742 transition(atos, vtos); | |
1743 __ pop_ptr(O1); | |
1744 __ verify_oop(O1); | |
1745 __ verify_oop(Otos_i); | |
1746 __ cmp(O1, Otos_i); | |
1747 __ if_cmp(ccNot(cc), true); | |
1748 } | |
1749 | |
1750 | |
1751 | |
1752 void TemplateTable::ret() { | |
1753 transition(vtos, vtos); | |
1754 locals_index(G3_scratch); | |
1755 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1756 // Otos_i contains the bci, compute the bcp from that | |
1757 | |
1758 #ifdef _LP64 | |
1759 #ifdef ASSERT | |
1760 // jsr result was labeled as an 'itos' not an 'atos' because we cannot GC | |
1761 // the result. The return address (really a BCI) was stored with an | |
1762 // 'astore' because JVM specs claim it's a pointer-sized thing. Hence in | |
1763 // the 64-bit build the 32-bit BCI is actually in the low bits of a 64-bit | |
1764 // loaded value. | |
1765 { Label zzz ; | |
1766 __ set (65536, G3_scratch) ; | |
1767 __ cmp (Otos_i, G3_scratch) ; | |
1768 __ bp( Assembler::lessEqualUnsigned, false, Assembler::xcc, Assembler::pn, zzz); | |
1769 __ delayed()->nop(); | |
1770 __ stop("BCI is in the wrong register half?"); | |
1771 __ bind (zzz) ; | |
1772 } | |
1773 #endif | |
1774 #endif | |
1775 | |
1776 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1777 | |
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1778 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1779 __ add(G3_scratch, Otos_i, G3_scratch); |
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1780 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1781 __ dispatch_next(vtos); |
1782 } | |
1783 | |
1784 | |
1785 void TemplateTable::wide_ret() { | |
1786 transition(vtos, vtos); | |
1787 locals_index_wide(G3_scratch); | |
1788 __ access_local_returnAddress(G3_scratch, Otos_i); | |
1789 // Otos_i contains the bci, compute the bcp from that | |
1790 | |
1791 __ profile_ret(vtos, Otos_i, G4_scratch); | |
1792 | |
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1793 __ ld_ptr(Lmethod, Method::const_offset(), G3_scratch); |
0 | 1794 __ add(G3_scratch, Otos_i, G3_scratch); |
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1795 __ add(G3_scratch, in_bytes(ConstMethod::codes_offset()), Lbcp); |
0 | 1796 __ dispatch_next(vtos); |
1797 } | |
1798 | |
1799 | |
1800 void TemplateTable::tableswitch() { | |
1801 transition(itos, vtos); | |
1802 Label default_case, continue_execution; | |
1803 | |
1804 // align bcp | |
1805 __ add(Lbcp, BytesPerInt, O1); | |
1806 __ and3(O1, -BytesPerInt, O1); | |
1807 // load lo, hi | |
1808 __ ld(O1, 1 * BytesPerInt, O2); // Low Byte | |
1809 __ ld(O1, 2 * BytesPerInt, O3); // High Byte | |
1810 #ifdef _LP64 | |
1811 // Sign extend the 32 bits | |
1812 __ sra ( Otos_i, 0, Otos_i ); | |
1813 #endif /* _LP64 */ | |
1814 | |
1815 // check against lo & hi | |
1816 __ cmp( Otos_i, O2); | |
1817 __ br( Assembler::less, false, Assembler::pn, default_case); | |
1818 __ delayed()->cmp( Otos_i, O3 ); | |
1819 __ br( Assembler::greater, false, Assembler::pn, default_case); | |
1820 // lookup dispatch offset | |
1821 __ delayed()->sub(Otos_i, O2, O2); | |
1822 __ profile_switch_case(O2, O3, G3_scratch, G4_scratch); | |
1823 __ sll(O2, LogBytesPerInt, O2); | |
1824 __ add(O2, 3 * BytesPerInt, O2); | |
3839 | 1825 __ ba(continue_execution); |
0 | 1826 __ delayed()->ld(O1, O2, O2); |
1827 // handle default | |
1828 __ bind(default_case); | |
1829 __ profile_switch_default(O3); | |
1830 __ ld(O1, 0, O2); // get default offset | |
1831 // continue execution | |
1832 __ bind(continue_execution); | |
1833 __ add(Lbcp, O2, Lbcp); | |
1834 __ dispatch_next(vtos); | |
1835 } | |
1836 | |
1837 | |
1838 void TemplateTable::lookupswitch() { | |
1839 transition(itos, itos); | |
1840 __ stop("lookupswitch bytecode should have been rewritten"); | |
1841 } | |
1842 | |
1843 void TemplateTable::fast_linearswitch() { | |
1844 transition(itos, vtos); | |
1845 Label loop_entry, loop, found, continue_execution; | |
1846 // align bcp | |
1847 __ add(Lbcp, BytesPerInt, O1); | |
1848 __ and3(O1, -BytesPerInt, O1); | |
1849 // set counter | |
1850 __ ld(O1, BytesPerInt, O2); | |
1851 __ sll(O2, LogBytesPerInt + 1, O2); // in word-pairs | |
1852 __ add(O1, 2 * BytesPerInt, O3); // set first pair addr | |
3839 | 1853 __ ba(loop_entry); |
0 | 1854 __ delayed()->add(O3, O2, O2); // counter now points past last pair |
1855 | |
1856 // table search | |
1857 __ bind(loop); | |
1858 __ cmp(O4, Otos_i); | |
1859 __ br(Assembler::equal, true, Assembler::pn, found); | |
1860 __ delayed()->ld(O3, BytesPerInt, O4); // offset -> O4 | |
1861 __ inc(O3, 2 * BytesPerInt); | |
1862 | |
1863 __ bind(loop_entry); | |
1864 __ cmp(O2, O3); | |
1865 __ brx(Assembler::greaterUnsigned, true, Assembler::pt, loop); | |
1866 __ delayed()->ld(O3, 0, O4); | |
1867 | |
1868 // default case | |
1869 __ ld(O1, 0, O4); // get default offset | |
1870 if (ProfileInterpreter) { | |
1871 __ profile_switch_default(O3); | |
3839 | 1872 __ ba_short(continue_execution); |
0 | 1873 } |
1874 | |
1875 // entry found -> get offset | |
1876 __ bind(found); | |
1877 if (ProfileInterpreter) { | |
1878 __ sub(O3, O1, O3); | |
1879 __ sub(O3, 2*BytesPerInt, O3); | |
1880 __ srl(O3, LogBytesPerInt + 1, O3); // in word-pairs | |
1881 __ profile_switch_case(O3, O1, O2, G3_scratch); | |
1882 | |
1883 __ bind(continue_execution); | |
1884 } | |
1885 __ add(Lbcp, O4, Lbcp); | |
1886 __ dispatch_next(vtos); | |
1887 } | |
1888 | |
1889 | |
1890 void TemplateTable::fast_binaryswitch() { | |
1891 transition(itos, vtos); | |
1892 // Implementation using the following core algorithm: (copied from Intel) | |
1893 // | |
1894 // int binary_search(int key, LookupswitchPair* array, int n) { | |
1895 // // Binary search according to "Methodik des Programmierens" by | |
1896 // // Edsger W. Dijkstra and W.H.J. Feijen, Addison Wesley Germany 1985. | |
1897 // int i = 0; | |
1898 // int j = n; | |
1899 // while (i+1 < j) { | |
1900 // // invariant P: 0 <= i < j <= n and (a[i] <= key < a[j] or Q) | |
1901 // // with Q: for all i: 0 <= i < n: key < a[i] | |
1902 // // where a stands for the array and assuming that the (inexisting) | |
1903 // // element a[n] is infinitely big. | |
1904 // int h = (i + j) >> 1; | |
1905 // // i < h < j | |
1906 // if (key < array[h].fast_match()) { | |
1907 // j = h; | |
1908 // } else { | |
1909 // i = h; | |
1910 // } | |
1911 // } | |
1912 // // R: a[i] <= key < a[i+1] or Q | |
1913 // // (i.e., if key is within array, i is the correct index) | |
1914 // return i; | |
1915 // } | |
1916 | |
1917 // register allocation | |
1918 assert(Otos_i == O0, "alias checking"); | |
1919 const Register Rkey = Otos_i; // already set (tosca) | |
1920 const Register Rarray = O1; | |
1921 const Register Ri = O2; | |
1922 const Register Rj = O3; | |
1923 const Register Rh = O4; | |
1924 const Register Rscratch = O5; | |
1925 | |
1926 const int log_entry_size = 3; | |
1927 const int entry_size = 1 << log_entry_size; | |
1928 | |
1929 Label found; | |
1930 // Find Array start | |
1931 __ add(Lbcp, 3 * BytesPerInt, Rarray); | |
1932 __ and3(Rarray, -BytesPerInt, Rarray); | |
1933 // initialize i & j (in delay slot) | |
1934 __ clr( Ri ); | |
1935 | |
1936 // and start | |
1937 Label entry; | |
3839 | 1938 __ ba(entry); |
0 | 1939 __ delayed()->ld( Rarray, -BytesPerInt, Rj); |
1940 // (Rj is already in the native byte-ordering.) | |
1941 | |
1942 // binary search loop | |
1943 { Label loop; | |
1944 __ bind( loop ); | |
1945 // int h = (i + j) >> 1; | |
1946 __ sra( Rh, 1, Rh ); | |
1947 // if (key < array[h].fast_match()) { | |
1948 // j = h; | |
1949 // } else { | |
1950 // i = h; | |
1951 // } | |
1952 __ sll( Rh, log_entry_size, Rscratch ); | |
1953 __ ld( Rarray, Rscratch, Rscratch ); | |
1954 // (Rscratch is already in the native byte-ordering.) | |
1955 __ cmp( Rkey, Rscratch ); | |
1956 if ( VM_Version::v9_instructions_work() ) { | |
1957 __ movcc( Assembler::less, false, Assembler::icc, Rh, Rj ); // j = h if (key < array[h].fast_match()) | |
1958 __ movcc( Assembler::greaterEqual, false, Assembler::icc, Rh, Ri ); // i = h if (key >= array[h].fast_match()) | |
1959 } | |
1960 else { | |
1961 Label end_of_if; | |
1962 __ br( Assembler::less, true, Assembler::pt, end_of_if ); | |
1963 __ delayed()->mov( Rh, Rj ); // if (<) Rj = Rh | |
1964 __ mov( Rh, Ri ); // else i = h | |
1965 __ bind(end_of_if); // } | |
1966 } | |
1967 | |
1968 // while (i+1 < j) | |
1969 __ bind( entry ); | |
1970 __ add( Ri, 1, Rscratch ); | |
1971 __ cmp(Rscratch, Rj); | |
1972 __ br( Assembler::less, true, Assembler::pt, loop ); | |
1973 __ delayed()->add( Ri, Rj, Rh ); // start h = i + j >> 1; | |
1974 } | |
1975 | |
1976 // end of binary search, result index is i (must check again!) | |
1977 Label default_case; | |
1978 Label continue_execution; | |
1979 if (ProfileInterpreter) { | |
1980 __ mov( Ri, Rh ); // Save index in i for profiling | |
1981 } | |
1982 __ sll( Ri, log_entry_size, Ri ); | |
1983 __ ld( Rarray, Ri, Rscratch ); | |
1984 // (Rscratch is already in the native byte-ordering.) | |
1985 __ cmp( Rkey, Rscratch ); | |
1986 __ br( Assembler::notEqual, true, Assembler::pn, default_case ); | |
1987 __ delayed()->ld( Rarray, -2 * BytesPerInt, Rj ); // load default offset -> j | |
1988 | |
1989 // entry found -> j = offset | |
1990 __ inc( Ri, BytesPerInt ); | |
1991 __ profile_switch_case(Rh, Rj, Rscratch, Rkey); | |
1992 __ ld( Rarray, Ri, Rj ); | |
1993 // (Rj is already in the native byte-ordering.) | |
1994 | |
1995 if (ProfileInterpreter) { | |
3839 | 1996 __ ba_short(continue_execution); |
0 | 1997 } |
1998 | |
1999 __ bind(default_case); // fall through (if not profiling) | |
2000 __ profile_switch_default(Ri); | |
2001 | |
2002 __ bind(continue_execution); | |
2003 __ add( Lbcp, Rj, Lbcp ); | |
2004 __ dispatch_next( vtos ); | |
2005 } | |
2006 | |
2007 | |
2008 void TemplateTable::_return(TosState state) { | |
2009 transition(state, state); | |
2010 assert(_desc->calls_vm(), "inconsistent calls_vm information"); | |
2011 | |
2012 if (_desc->bytecode() == Bytecodes::_return_register_finalizer) { | |
2013 assert(state == vtos, "only valid state"); | |
2014 __ mov(G0, G3_scratch); | |
2015 __ access_local_ptr(G3_scratch, Otos_i); | |
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2016 __ load_klass(Otos_i, O2); |
0 | 2017 __ set(JVM_ACC_HAS_FINALIZER, G3); |
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2018 __ ld(O2, in_bytes(Klass::access_flags_offset()), O2); |
0 | 2019 __ andcc(G3, O2, G0); |
2020 Label skip_register_finalizer; | |
2021 __ br(Assembler::zero, false, Assembler::pn, skip_register_finalizer); | |
2022 __ delayed()->nop(); | |
2023 | |
2024 // Call out to do finalizer registration | |
2025 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::register_finalizer), Otos_i); | |
2026 | |
2027 __ bind(skip_register_finalizer); | |
2028 } | |
2029 | |
2030 __ remove_activation(state, /* throw_monitor_exception */ true); | |
2031 | |
2032 // The caller's SP was adjusted upon method entry to accomodate | |
2033 // the callee's non-argument locals. Undo that adjustment. | |
2034 __ ret(); // return to caller | |
2035 __ delayed()->restore(I5_savedSP, G0, SP); | |
2036 } | |
2037 | |
2038 | |
2039 // ---------------------------------------------------------------------------- | |
2040 // Volatile variables demand their effects be made known to all CPU's in | |
2041 // order. Store buffers on most chips allow reads & writes to reorder; the | |
2042 // JMM's ReadAfterWrite.java test fails in -Xint mode without some kind of | |
2043 // memory barrier (i.e., it's not sufficient that the interpreter does not | |
2044 // reorder volatile references, the hardware also must not reorder them). | |
2045 // | |
2046 // According to the new Java Memory Model (JMM): | |
2047 // (1) All volatiles are serialized wrt to each other. | |
2048 // ALSO reads & writes act as aquire & release, so: | |
2049 // (2) A read cannot let unrelated NON-volatile memory refs that happen after | |
2050 // the read float up to before the read. It's OK for non-volatile memory refs | |
2051 // that happen before the volatile read to float down below it. | |
2052 // (3) Similar a volatile write cannot let unrelated NON-volatile memory refs | |
2053 // that happen BEFORE the write float down to after the write. It's OK for | |
2054 // non-volatile memory refs that happen after the volatile write to float up | |
2055 // before it. | |
2056 // | |
2057 // We only put in barriers around volatile refs (they are expensive), not | |
2058 // _between_ memory refs (that would require us to track the flavor of the | |
2059 // previous memory refs). Requirements (2) and (3) require some barriers | |
2060 // before volatile stores and after volatile loads. These nearly cover | |
2061 // requirement (1) but miss the volatile-store-volatile-load case. This final | |
2062 // case is placed after volatile-stores although it could just as well go | |
2063 // before volatile-loads. | |
2064 void TemplateTable::volatile_barrier(Assembler::Membar_mask_bits order_constraint) { | |
2065 // Helper function to insert a is-volatile test and memory barrier | |
2066 // All current sparc implementations run in TSO, needing only StoreLoad | |
2067 if ((order_constraint & Assembler::StoreLoad) == 0) return; | |
2068 __ membar( order_constraint ); | |
2069 } | |
2070 | |
2071 // ---------------------------------------------------------------------------- | |
1565 | 2072 void TemplateTable::resolve_cache_and_index(int byte_no, |
2073 Register Rcache, | |
2074 Register index, | |
2075 size_t index_size) { | |
0 | 2076 // Depends on cpCacheOop layout! |
2077 Label resolved; | |
2078 | |
1565 | 2079 assert(byte_no == f1_byte || byte_no == f2_byte, "byte_no out of range"); |
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2080 __ get_cache_and_index_and_bytecode_at_bcp(Rcache, index, Lbyte_code, byte_no, 1, index_size); |
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2081 __ cmp(Lbyte_code, (int) bytecode()); // have we resolved this bytecode? |
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2082 __ br(Assembler::equal, false, Assembler::pt, resolved); |
1503 | 2083 __ delayed()->set((int)bytecode(), O1); |
0 | 2084 |
2085 address entry; | |
2086 switch (bytecode()) { | |
2087 case Bytecodes::_getstatic : // fall through | |
2088 case Bytecodes::_putstatic : // fall through | |
2089 case Bytecodes::_getfield : // fall through | |
2090 case Bytecodes::_putfield : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_get_put); break; | |
2091 case Bytecodes::_invokevirtual : // fall through | |
2092 case Bytecodes::_invokespecial : // fall through | |
2093 case Bytecodes::_invokestatic : // fall through | |
2094 case Bytecodes::_invokeinterface: entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invoke); break; | |
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2095 case Bytecodes::_invokehandle : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokehandle); break; |
1503 | 2096 case Bytecodes::_invokedynamic : entry = CAST_FROM_FN_PTR(address, InterpreterRuntime::resolve_invokedynamic); break; |
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2097 default: |
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2098 fatal(err_msg("unexpected bytecode: %s", Bytecodes::name(bytecode()))); |
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2099 break; |
0 | 2100 } |
2101 // first time invocation - must resolve first | |
2102 __ call_VM(noreg, entry, O1); | |
2103 // Update registers with resolved info | |
1565 | 2104 __ get_cache_and_index_at_bcp(Rcache, index, 1, index_size); |
0 | 2105 __ bind(resolved); |
2106 } | |
2107 | |
2108 void TemplateTable::load_invoke_cp_cache_entry(int byte_no, | |
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2109 Register method, |
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2110 Register itable_index, |
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2111 Register flags, |
0 | 2112 bool is_invokevirtual, |
1565 | 2113 bool is_invokevfinal, |
2114 bool is_invokedynamic) { | |
0 | 2115 // Uses both G3_scratch and G4_scratch |
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2116 Register cache = G3_scratch; |
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2117 Register index = G4_scratch; |
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2118 assert_different_registers(cache, method, itable_index); |
0 | 2119 |
2120 // determine constant pool cache field offsets | |
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2121 assert(is_invokevirtual == (byte_no == f2_byte), "is_invokevirtual flag redundant"); |
0 | 2122 const int method_offset = in_bytes( |
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2123 ConstantPoolCache::base_offset() + |
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2124 ((byte_no == f2_byte) |
0 | 2125 ? ConstantPoolCacheEntry::f2_offset() |
2126 : ConstantPoolCacheEntry::f1_offset() | |
2127 ) | |
2128 ); | |
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2129 const int flags_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2130 ConstantPoolCacheEntry::flags_offset()); |
2131 // access constant pool cache fields | |
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2132 const int index_offset = in_bytes(ConstantPoolCache::base_offset() + |
0 | 2133 ConstantPoolCacheEntry::f2_offset()); |
2134 | |
2135 if (is_invokevfinal) { | |
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2136 __ get_cache_and_index_at_bcp(cache, index, 1); |
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2137 __ ld_ptr(Address(cache, method_offset), method); |
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2138 } else { |
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2139 size_t index_size = (is_invokedynamic ? sizeof(u4) : sizeof(u2)); |
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2140 resolve_cache_and_index(byte_no, cache, index, index_size); |
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2141 __ ld_ptr(Address(cache, method_offset), method); |
0 | 2142 } |
2143 | |
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2144 if (itable_index != noreg) { |
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2145 // pick up itable or appendix index from f2 also: |
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2146 __ ld_ptr(Address(cache, index_offset), itable_index); |
0 | 2147 } |
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2148 __ ld_ptr(Address(cache, flags_offset), flags); |
0 | 2149 } |
2150 | |
2151 // The Rcache register must be set before call | |
2152 void TemplateTable::load_field_cp_cache_entry(Register Robj, | |
2153 Register Rcache, | |
2154 Register index, | |
2155 Register Roffset, | |
2156 Register Rflags, | |
2157 bool is_static) { | |
2158 assert_different_registers(Rcache, Rflags, Roffset); | |
2159 | |
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2160 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2161 |
727 | 2162 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
2163 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); | |
0 | 2164 if (is_static) { |
727 | 2165 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f1_offset(), Robj); |
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2166 const int mirror_offset = in_bytes(Klass::java_mirror_offset()); |
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2167 __ ld_ptr( Robj, mirror_offset, Robj); |
0 | 2168 } |
2169 } | |
2170 | |
2171 // The registers Rcache and index expected to be set before call. | |
2172 // Correct values of the Rcache and index registers are preserved. | |
2173 void TemplateTable::jvmti_post_field_access(Register Rcache, | |
2174 Register index, | |
2175 bool is_static, | |
2176 bool has_tos) { | |
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2177 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2178 |
2179 if (JvmtiExport::can_post_field_access()) { | |
2180 // Check to see if a field access watch has been set before we take | |
2181 // the time to call into the VM. | |
2182 Label Label1; | |
2183 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2184 AddressLiteral get_field_access_count_addr(JvmtiExport::get_field_access_count_addr()); |
0 | 2185 __ load_contents(get_field_access_count_addr, G1_scratch); |
3839 | 2186 __ cmp_and_br_short(G1_scratch, 0, Assembler::equal, Assembler::pt, Label1); |
0 | 2187 |
2188 __ add(Rcache, in_bytes(cp_base_offset), Rcache); | |
2189 | |
2190 if (is_static) { | |
2191 __ clr(Otos_i); | |
2192 } else { | |
2193 if (has_tos) { | |
2194 // save object pointer before call_VM() clobbers it | |
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2195 __ push_ptr(Otos_i); // put object on tos where GC wants it. |
0 | 2196 } else { |
2197 // Load top of stack (do not pop the value off the stack); | |
2198 __ ld_ptr(Lesp, Interpreter::expr_offset_in_bytes(0), Otos_i); | |
2199 } | |
2200 __ verify_oop(Otos_i); | |
2201 } | |
2202 // Otos_i: object pointer or NULL if static | |
2203 // Rcache: cache entry pointer | |
2204 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_access), | |
2205 Otos_i, Rcache); | |
2206 if (!is_static && has_tos) { | |
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2207 __ pop_ptr(Otos_i); // restore object pointer |
0 | 2208 __ verify_oop(Otos_i); |
2209 } | |
2210 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2211 __ bind(Label1); | |
2212 } | |
2213 } | |
2214 | |
2215 void TemplateTable::getfield_or_static(int byte_no, bool is_static) { | |
2216 transition(vtos, vtos); | |
2217 | |
2218 Register Rcache = G3_scratch; | |
2219 Register index = G4_scratch; | |
2220 Register Rclass = Rcache; | |
2221 Register Roffset= G4_scratch; | |
2222 Register Rflags = G1_scratch; | |
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2223 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2224 |
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2225 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2226 jvmti_post_field_access(Rcache, index, is_static, false); |
2227 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2228 | |
2229 if (!is_static) { | |
2230 pop_and_check_object(Rclass); | |
2231 } else { | |
2232 __ verify_oop(Rclass); | |
2233 } | |
2234 | |
2235 Label exit; | |
2236 | |
2237 Assembler::Membar_mask_bits membar_bits = | |
2238 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2239 | |
2240 if (__ membar_has_effect(membar_bits)) { | |
2241 // Get volatile flag | |
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2242 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2243 __ and3(Rflags, Lscratch, Lscratch); |
2244 } | |
2245 | |
2246 Label checkVolatile; | |
2247 | |
2248 // compute field type | |
2249 Label notByte, notInt, notShort, notChar, notLong, notFloat, notObj; | |
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2250 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2251 // Make sure we don't need to mask Rflags after the above shift |
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2252 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2253 |
2254 // Check atos before itos for getstatic, more likely (in Queens at least) | |
2255 __ cmp(Rflags, atos); | |
2256 __ br(Assembler::notEqual, false, Assembler::pt, notObj); | |
2257 __ delayed() ->cmp(Rflags, itos); | |
2258 | |
2259 // atos | |
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2260 __ load_heap_oop(Rclass, Roffset, Otos_i); |
0 | 2261 __ verify_oop(Otos_i); |
2262 __ push(atos); | |
2263 if (!is_static) { | |
2264 patch_bytecode(Bytecodes::_fast_agetfield, G3_scratch, G4_scratch); | |
2265 } | |
3839 | 2266 __ ba(checkVolatile); |
0 | 2267 __ delayed()->tst(Lscratch); |
2268 | |
2269 __ bind(notObj); | |
2270 | |
2271 // cmp(Rflags, itos); | |
2272 __ br(Assembler::notEqual, false, Assembler::pt, notInt); | |
2273 __ delayed() ->cmp(Rflags, ltos); | |
2274 | |
2275 // itos | |
2276 __ ld(Rclass, Roffset, Otos_i); | |
2277 __ push(itos); | |
2278 if (!is_static) { | |
2279 patch_bytecode(Bytecodes::_fast_igetfield, G3_scratch, G4_scratch); | |
2280 } | |
3839 | 2281 __ ba(checkVolatile); |
0 | 2282 __ delayed()->tst(Lscratch); |
2283 | |
2284 __ bind(notInt); | |
2285 | |
2286 // cmp(Rflags, ltos); | |
2287 __ br(Assembler::notEqual, false, Assembler::pt, notLong); | |
2288 __ delayed() ->cmp(Rflags, btos); | |
2289 | |
2290 // ltos | |
2291 // load must be atomic | |
2292 __ ld_long(Rclass, Roffset, Otos_l); | |
2293 __ push(ltos); | |
2294 if (!is_static) { | |
2295 patch_bytecode(Bytecodes::_fast_lgetfield, G3_scratch, G4_scratch); | |
2296 } | |
3839 | 2297 __ ba(checkVolatile); |
0 | 2298 __ delayed()->tst(Lscratch); |
2299 | |
2300 __ bind(notLong); | |
2301 | |
2302 // cmp(Rflags, btos); | |
2303 __ br(Assembler::notEqual, false, Assembler::pt, notByte); | |
2304 __ delayed() ->cmp(Rflags, ctos); | |
2305 | |
2306 // btos | |
2307 __ ldsb(Rclass, Roffset, Otos_i); | |
2308 __ push(itos); | |
2309 if (!is_static) { | |
2310 patch_bytecode(Bytecodes::_fast_bgetfield, G3_scratch, G4_scratch); | |
2311 } | |
3839 | 2312 __ ba(checkVolatile); |
0 | 2313 __ delayed()->tst(Lscratch); |
2314 | |
2315 __ bind(notByte); | |
2316 | |
2317 // cmp(Rflags, ctos); | |
2318 __ br(Assembler::notEqual, false, Assembler::pt, notChar); | |
2319 __ delayed() ->cmp(Rflags, stos); | |
2320 | |
2321 // ctos | |
2322 __ lduh(Rclass, Roffset, Otos_i); | |
2323 __ push(itos); | |
2324 if (!is_static) { | |
2325 patch_bytecode(Bytecodes::_fast_cgetfield, G3_scratch, G4_scratch); | |
2326 } | |
3839 | 2327 __ ba(checkVolatile); |
0 | 2328 __ delayed()->tst(Lscratch); |
2329 | |
2330 __ bind(notChar); | |
2331 | |
2332 // cmp(Rflags, stos); | |
2333 __ br(Assembler::notEqual, false, Assembler::pt, notShort); | |
2334 __ delayed() ->cmp(Rflags, ftos); | |
2335 | |
2336 // stos | |
2337 __ ldsh(Rclass, Roffset, Otos_i); | |
2338 __ push(itos); | |
2339 if (!is_static) { | |
2340 patch_bytecode(Bytecodes::_fast_sgetfield, G3_scratch, G4_scratch); | |
2341 } | |
3839 | 2342 __ ba(checkVolatile); |
0 | 2343 __ delayed()->tst(Lscratch); |
2344 | |
2345 __ bind(notShort); | |
2346 | |
2347 | |
2348 // cmp(Rflags, ftos); | |
2349 __ br(Assembler::notEqual, false, Assembler::pt, notFloat); | |
2350 __ delayed() ->tst(Lscratch); | |
2351 | |
2352 // ftos | |
2353 __ ldf(FloatRegisterImpl::S, Rclass, Roffset, Ftos_f); | |
2354 __ push(ftos); | |
2355 if (!is_static) { | |
2356 patch_bytecode(Bytecodes::_fast_fgetfield, G3_scratch, G4_scratch); | |
2357 } | |
3839 | 2358 __ ba(checkVolatile); |
0 | 2359 __ delayed()->tst(Lscratch); |
2360 | |
2361 __ bind(notFloat); | |
2362 | |
2363 | |
2364 // dtos | |
2365 __ ldf(FloatRegisterImpl::D, Rclass, Roffset, Ftos_d); | |
2366 __ push(dtos); | |
2367 if (!is_static) { | |
2368 patch_bytecode(Bytecodes::_fast_dgetfield, G3_scratch, G4_scratch); | |
2369 } | |
2370 | |
2371 __ bind(checkVolatile); | |
2372 if (__ membar_has_effect(membar_bits)) { | |
2373 // __ tst(Lscratch); executed in delay slot | |
2374 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2375 __ delayed()->nop(); | |
2376 volatile_barrier(membar_bits); | |
2377 } | |
2378 | |
2379 __ bind(exit); | |
2380 } | |
2381 | |
2382 | |
2383 void TemplateTable::getfield(int byte_no) { | |
2384 getfield_or_static(byte_no, false); | |
2385 } | |
2386 | |
2387 void TemplateTable::getstatic(int byte_no) { | |
2388 getfield_or_static(byte_no, true); | |
2389 } | |
2390 | |
2391 | |
2392 void TemplateTable::fast_accessfield(TosState state) { | |
2393 transition(atos, state); | |
2394 Register Rcache = G3_scratch; | |
2395 Register index = G4_scratch; | |
2396 Register Roffset = G4_scratch; | |
2397 Register Rflags = Rcache; | |
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2398 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2399 |
2400 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2401 jvmti_post_field_access(Rcache, index, /*is_static*/false, /*has_tos*/true); | |
2402 | |
727 | 2403 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2404 |
2405 __ null_check(Otos_i); | |
2406 __ verify_oop(Otos_i); | |
2407 | |
2408 Label exit; | |
2409 | |
2410 Assembler::Membar_mask_bits membar_bits = | |
2411 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2412 if (__ membar_has_effect(membar_bits)) { | |
2413 // Get volatile flag | |
727 | 2414 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Rflags); |
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2415 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2416 } |
2417 | |
2418 switch (bytecode()) { | |
2419 case Bytecodes::_fast_bgetfield: | |
2420 __ ldsb(Otos_i, Roffset, Otos_i); | |
2421 break; | |
2422 case Bytecodes::_fast_cgetfield: | |
2423 __ lduh(Otos_i, Roffset, Otos_i); | |
2424 break; | |
2425 case Bytecodes::_fast_sgetfield: | |
2426 __ ldsh(Otos_i, Roffset, Otos_i); | |
2427 break; | |
2428 case Bytecodes::_fast_igetfield: | |
2429 __ ld(Otos_i, Roffset, Otos_i); | |
2430 break; | |
2431 case Bytecodes::_fast_lgetfield: | |
2432 __ ld_long(Otos_i, Roffset, Otos_l); | |
2433 break; | |
2434 case Bytecodes::_fast_fgetfield: | |
2435 __ ldf(FloatRegisterImpl::S, Otos_i, Roffset, Ftos_f); | |
2436 break; | |
2437 case Bytecodes::_fast_dgetfield: | |
2438 __ ldf(FloatRegisterImpl::D, Otos_i, Roffset, Ftos_d); | |
2439 break; | |
2440 case Bytecodes::_fast_agetfield: | |
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2441 __ load_heap_oop(Otos_i, Roffset, Otos_i); |
0 | 2442 break; |
2443 default: | |
2444 ShouldNotReachHere(); | |
2445 } | |
2446 | |
2447 if (__ membar_has_effect(membar_bits)) { | |
2448 __ btst(Lscratch, Rflags); | |
2449 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2450 __ delayed()->nop(); | |
2451 volatile_barrier(membar_bits); | |
2452 __ bind(exit); | |
2453 } | |
2454 | |
2455 if (state == atos) { | |
2456 __ verify_oop(Otos_i); // does not blow flags! | |
2457 } | |
2458 } | |
2459 | |
2460 void TemplateTable::jvmti_post_fast_field_mod() { | |
2461 if (JvmtiExport::can_post_field_modification()) { | |
2462 // Check to see if a field modification watch has been set before we take | |
2463 // the time to call into the VM. | |
2464 Label done; | |
727 | 2465 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2466 __ load_contents(get_field_modification_count_addr, G4_scratch); |
3839 | 2467 __ cmp_and_br_short(G4_scratch, 0, Assembler::equal, Assembler::pt, done); |
0 | 2468 __ pop_ptr(G4_scratch); // copy the object pointer from tos |
2469 __ verify_oop(G4_scratch); | |
2470 __ push_ptr(G4_scratch); // put the object pointer back on tos | |
2471 __ get_cache_entry_pointer_at_bcp(G1_scratch, G3_scratch, 1); | |
2472 // Save tos values before call_VM() clobbers them. Since we have | |
2473 // to do it for every data type, we use the saved values as the | |
2474 // jvalue object. | |
2475 switch (bytecode()) { // save tos values before call_VM() clobbers them | |
2476 case Bytecodes::_fast_aputfield: __ push_ptr(Otos_i); break; | |
2477 case Bytecodes::_fast_bputfield: // fall through | |
2478 case Bytecodes::_fast_sputfield: // fall through | |
2479 case Bytecodes::_fast_cputfield: // fall through | |
2480 case Bytecodes::_fast_iputfield: __ push_i(Otos_i); break; | |
2481 case Bytecodes::_fast_dputfield: __ push_d(Ftos_d); break; | |
2482 case Bytecodes::_fast_fputfield: __ push_f(Ftos_f); break; | |
2483 // get words in right order for use as jvalue object | |
2484 case Bytecodes::_fast_lputfield: __ push_l(Otos_l); break; | |
2485 } | |
2486 // setup pointer to jvalue object | |
2487 __ mov(Lesp, G3_scratch); __ inc(G3_scratch, wordSize); | |
2488 // G4_scratch: object pointer | |
2489 // G1_scratch: cache entry pointer | |
2490 // G3_scratch: jvalue object on the stack | |
2491 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), G4_scratch, G1_scratch, G3_scratch); | |
2492 switch (bytecode()) { // restore tos values | |
2493 case Bytecodes::_fast_aputfield: __ pop_ptr(Otos_i); break; | |
2494 case Bytecodes::_fast_bputfield: // fall through | |
2495 case Bytecodes::_fast_sputfield: // fall through | |
2496 case Bytecodes::_fast_cputfield: // fall through | |
2497 case Bytecodes::_fast_iputfield: __ pop_i(Otos_i); break; | |
2498 case Bytecodes::_fast_dputfield: __ pop_d(Ftos_d); break; | |
2499 case Bytecodes::_fast_fputfield: __ pop_f(Ftos_f); break; | |
2500 case Bytecodes::_fast_lputfield: __ pop_l(Otos_l); break; | |
2501 } | |
2502 __ bind(done); | |
2503 } | |
2504 } | |
2505 | |
2506 // The registers Rcache and index expected to be set before call. | |
2507 // The function may destroy various registers, just not the Rcache and index registers. | |
2508 void TemplateTable::jvmti_post_field_mod(Register Rcache, Register index, bool is_static) { | |
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2509 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2510 |
2511 if (JvmtiExport::can_post_field_modification()) { | |
2512 // Check to see if a field modification watch has been set before we take | |
2513 // the time to call into the VM. | |
2514 Label Label1; | |
2515 assert_different_registers(Rcache, index, G1_scratch); | |
727 | 2516 AddressLiteral get_field_modification_count_addr(JvmtiExport::get_field_modification_count_addr()); |
0 | 2517 __ load_contents(get_field_modification_count_addr, G1_scratch); |
3839 | 2518 __ cmp_and_br_short(G1_scratch, 0, Assembler::zero, Assembler::pt, Label1); |
0 | 2519 |
2520 // The Rcache and index registers have been already set. | |
2521 // This allows to eliminate this call but the Rcache and index | |
2522 // registers must be correspondingly used after this line. | |
2523 __ get_cache_and_index_at_bcp(G1_scratch, G4_scratch, 1); | |
2524 | |
2525 __ add(G1_scratch, in_bytes(cp_base_offset), G3_scratch); | |
2526 if (is_static) { | |
2527 // Life is simple. Null out the object pointer. | |
2528 __ clr(G4_scratch); | |
2529 } else { | |
2530 Register Rflags = G1_scratch; | |
2531 // Life is harder. The stack holds the value on top, followed by the | |
2532 // object. We don't know the size of the value, though; it could be | |
2533 // one or two words depending on its type. As a result, we must find | |
2534 // the type to determine where the object is. | |
2535 | |
2536 Label two_word, valsizeknown; | |
727 | 2537 __ ld_ptr(G1_scratch, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2538 __ mov(Lesp, G4_scratch); |
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2539 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2540 // Make sure we don't need to mask Rflags after the above shift |
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2541 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2542 __ cmp(Rflags, ltos); |
2543 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2544 __ delayed()->cmp(Rflags, dtos); | |
2545 __ br(Assembler::equal, false, Assembler::pt, two_word); | |
2546 __ delayed()->nop(); | |
2547 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(1)); | |
3839 | 2548 __ ba_short(valsizeknown); |
0 | 2549 __ bind(two_word); |
2550 | |
2551 __ inc(G4_scratch, Interpreter::expr_offset_in_bytes(2)); | |
2552 | |
2553 __ bind(valsizeknown); | |
2554 // setup object pointer | |
2555 __ ld_ptr(G4_scratch, 0, G4_scratch); | |
2556 __ verify_oop(G4_scratch); | |
2557 } | |
2558 // setup pointer to jvalue object | |
2559 __ mov(Lesp, G1_scratch); __ inc(G1_scratch, wordSize); | |
2560 // G4_scratch: object pointer or NULL if static | |
2561 // G3_scratch: cache entry pointer | |
2562 // G1_scratch: jvalue object on the stack | |
2563 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::post_field_modification), | |
2564 G4_scratch, G3_scratch, G1_scratch); | |
2565 __ get_cache_and_index_at_bcp(Rcache, index, 1); | |
2566 __ bind(Label1); | |
2567 } | |
2568 } | |
2569 | |
2570 void TemplateTable::pop_and_check_object(Register r) { | |
2571 __ pop_ptr(r); | |
2572 __ null_check(r); // for field access must check obj. | |
2573 __ verify_oop(r); | |
2574 } | |
2575 | |
2576 void TemplateTable::putfield_or_static(int byte_no, bool is_static) { | |
2577 transition(vtos, vtos); | |
2578 Register Rcache = G3_scratch; | |
2579 Register index = G4_scratch; | |
2580 Register Rclass = Rcache; | |
2581 Register Roffset= G4_scratch; | |
2582 Register Rflags = G1_scratch; | |
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2583 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
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2584 |
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2585 resolve_cache_and_index(byte_no, Rcache, index, sizeof(u2)); |
0 | 2586 jvmti_post_field_mod(Rcache, index, is_static); |
2587 load_field_cp_cache_entry(Rclass, Rcache, index, Roffset, Rflags, is_static); | |
2588 | |
2589 Assembler::Membar_mask_bits read_bits = | |
2590 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2591 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2592 | |
2593 Label notVolatile, checkVolatile, exit; | |
2594 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
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2595 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2596 __ and3(Rflags, Lscratch, Lscratch); |
2597 | |
2598 if (__ membar_has_effect(read_bits)) { | |
3839 | 2599 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2600 volatile_barrier(read_bits); |
2601 __ bind(notVolatile); | |
2602 } | |
2603 } | |
2604 | |
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2605 __ srl(Rflags, ConstantPoolCacheEntry::tos_state_shift, Rflags); |
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2606 // Make sure we don't need to mask Rflags after the above shift |
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2607 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 2608 |
2609 // compute field type | |
2610 Label notInt, notShort, notChar, notObj, notByte, notLong, notFloat; | |
2611 | |
2612 if (is_static) { | |
2613 // putstatic with object type most likely, check that first | |
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2614 __ cmp(Rflags, atos); |
0 | 2615 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2616 __ delayed()->cmp(Rflags, itos); |
0 | 2617 |
2618 // atos | |
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2619 { |
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2620 __ pop_ptr(); |
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2621 __ verify_oop(Otos_i); |
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2622 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2623 __ ba(checkVolatile); |
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2624 __ delayed()->tst(Lscratch); |
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2625 } |
0 | 2626 |
2627 __ bind(notObj); | |
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2628 // cmp(Rflags, itos); |
0 | 2629 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2630 __ delayed()->cmp(Rflags, btos); |
0 | 2631 |
2632 // itos | |
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2633 { |
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2634 __ pop_i(); |
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2635 __ st(Otos_i, Rclass, Roffset); |
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2636 __ ba(checkVolatile); |
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2637 __ delayed()->tst(Lscratch); |
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2638 } |
0 | 2639 |
2640 __ bind(notInt); | |
2641 } else { | |
2642 // putfield with int type most likely, check that first | |
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2643 __ cmp(Rflags, itos); |
0 | 2644 __ br(Assembler::notEqual, false, Assembler::pt, notInt); |
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2645 __ delayed()->cmp(Rflags, atos); |
0 | 2646 |
2647 // itos | |
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2648 { |
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2649 __ pop_i(); |
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2650 pop_and_check_object(Rclass); |
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2651 __ st(Otos_i, Rclass, Roffset); |
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2652 patch_bytecode(Bytecodes::_fast_iputfield, G3_scratch, G4_scratch, true, byte_no); |
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2653 __ ba(checkVolatile); |
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2654 __ delayed()->tst(Lscratch); |
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2655 } |
0 | 2656 |
2657 __ bind(notInt); | |
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2658 // cmp(Rflags, atos); |
0 | 2659 __ br(Assembler::notEqual, false, Assembler::pt, notObj); |
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2660 __ delayed()->cmp(Rflags, btos); |
0 | 2661 |
2662 // atos | |
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2663 { |
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2664 __ pop_ptr(); |
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2665 pop_and_check_object(Rclass); |
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2666 __ verify_oop(Otos_i); |
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2667 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
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2668 patch_bytecode(Bytecodes::_fast_aputfield, G3_scratch, G4_scratch, true, byte_no); |
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2669 __ ba(checkVolatile); |
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2670 __ delayed()->tst(Lscratch); |
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2671 } |
0 | 2672 |
2673 __ bind(notObj); | |
2674 } | |
2675 | |
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2676 // cmp(Rflags, btos); |
0 | 2677 __ br(Assembler::notEqual, false, Assembler::pt, notByte); |
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2678 __ delayed()->cmp(Rflags, ltos); |
0 | 2679 |
2680 // btos | |
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2681 { |
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2682 __ pop_i(); |
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2683 if (!is_static) pop_and_check_object(Rclass); |
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2684 __ stb(Otos_i, Rclass, Roffset); |
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2685 if (!is_static) { |
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2686 patch_bytecode(Bytecodes::_fast_bputfield, G3_scratch, G4_scratch, true, byte_no); |
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2687 } |
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2688 __ ba(checkVolatile); |
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2689 __ delayed()->tst(Lscratch); |
0 | 2690 } |
2691 | |
2692 __ bind(notByte); | |
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2693 // cmp(Rflags, ltos); |
0 | 2694 __ br(Assembler::notEqual, false, Assembler::pt, notLong); |
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2695 __ delayed()->cmp(Rflags, ctos); |
0 | 2696 |
2697 // ltos | |
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2698 { |
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2699 __ pop_l(); |
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2700 if (!is_static) pop_and_check_object(Rclass); |
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2701 __ st_long(Otos_l, Rclass, Roffset); |
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2702 if (!is_static) { |
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2703 patch_bytecode(Bytecodes::_fast_lputfield, G3_scratch, G4_scratch, true, byte_no); |
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2704 } |
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2705 __ ba(checkVolatile); |
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2706 __ delayed()->tst(Lscratch); |
0 | 2707 } |
2708 | |
2709 __ bind(notLong); | |
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2710 // cmp(Rflags, ctos); |
0 | 2711 __ br(Assembler::notEqual, false, Assembler::pt, notChar); |
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2712 __ delayed()->cmp(Rflags, stos); |
0 | 2713 |
2714 // ctos (char) | |
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2715 { |
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2716 __ pop_i(); |
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2717 if (!is_static) pop_and_check_object(Rclass); |
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2718 __ sth(Otos_i, Rclass, Roffset); |
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2719 if (!is_static) { |
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2720 patch_bytecode(Bytecodes::_fast_cputfield, G3_scratch, G4_scratch, true, byte_no); |
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2721 } |
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2722 __ ba(checkVolatile); |
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2723 __ delayed()->tst(Lscratch); |
0 | 2724 } |
2725 | |
2726 __ bind(notChar); | |
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2727 // cmp(Rflags, stos); |
0 | 2728 __ br(Assembler::notEqual, false, Assembler::pt, notShort); |
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2729 __ delayed()->cmp(Rflags, ftos); |
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2730 |
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2731 // stos (short) |
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2732 { |
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2733 __ pop_i(); |
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2734 if (!is_static) pop_and_check_object(Rclass); |
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2735 __ sth(Otos_i, Rclass, Roffset); |
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2736 if (!is_static) { |
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2737 patch_bytecode(Bytecodes::_fast_sputfield, G3_scratch, G4_scratch, true, byte_no); |
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2738 } |
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2739 __ ba(checkVolatile); |
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2740 __ delayed()->tst(Lscratch); |
0 | 2741 } |
2742 | |
2743 __ bind(notShort); | |
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2744 // cmp(Rflags, ftos); |
0 | 2745 __ br(Assembler::notZero, false, Assembler::pt, notFloat); |
2746 __ delayed()->nop(); | |
2747 | |
2748 // ftos | |
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2749 { |
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2750 __ pop_f(); |
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2751 if (!is_static) pop_and_check_object(Rclass); |
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2752 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); |
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2753 if (!is_static) { |
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2754 patch_bytecode(Bytecodes::_fast_fputfield, G3_scratch, G4_scratch, true, byte_no); |
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2755 } |
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2756 __ ba(checkVolatile); |
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2757 __ delayed()->tst(Lscratch); |
0 | 2758 } |
2759 | |
2760 __ bind(notFloat); | |
2761 | |
2762 // dtos | |
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2763 { |
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2764 __ pop_d(); |
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2765 if (!is_static) pop_and_check_object(Rclass); |
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2766 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); |
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2767 if (!is_static) { |
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2768 patch_bytecode(Bytecodes::_fast_dputfield, G3_scratch, G4_scratch, true, byte_no); |
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2769 } |
0 | 2770 } |
2771 | |
2772 __ bind(checkVolatile); | |
2773 __ tst(Lscratch); | |
2774 | |
2775 if (__ membar_has_effect(write_bits)) { | |
2776 // __ tst(Lscratch); in delay slot | |
2777 __ br(Assembler::zero, false, Assembler::pt, exit); | |
2778 __ delayed()->nop(); | |
2779 volatile_barrier(Assembler::StoreLoad); | |
2780 __ bind(exit); | |
2781 } | |
2782 } | |
2783 | |
2784 void TemplateTable::fast_storefield(TosState state) { | |
2785 transition(state, vtos); | |
2786 Register Rcache = G3_scratch; | |
2787 Register Rclass = Rcache; | |
2788 Register Roffset= G4_scratch; | |
2789 Register Rflags = G1_scratch; | |
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2790 ByteSize cp_base_offset = ConstantPoolCache::base_offset(); |
0 | 2791 |
2792 jvmti_post_fast_field_mod(); | |
2793 | |
2794 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 1); | |
2795 | |
2796 Assembler::Membar_mask_bits read_bits = | |
2797 Assembler::Membar_mask_bits(Assembler::LoadStore | Assembler::StoreStore); | |
2798 Assembler::Membar_mask_bits write_bits = Assembler::StoreLoad; | |
2799 | |
2800 Label notVolatile, checkVolatile, exit; | |
2801 if (__ membar_has_effect(read_bits) || __ membar_has_effect(write_bits)) { | |
727 | 2802 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::flags_offset(), Rflags); |
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2803 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2804 __ and3(Rflags, Lscratch, Lscratch); |
2805 if (__ membar_has_effect(read_bits)) { | |
3839 | 2806 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, notVolatile); |
0 | 2807 volatile_barrier(read_bits); |
2808 __ bind(notVolatile); | |
2809 } | |
2810 } | |
2811 | |
727 | 2812 __ ld_ptr(Rcache, cp_base_offset + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2813 pop_and_check_object(Rclass); |
2814 | |
2815 switch (bytecode()) { | |
2816 case Bytecodes::_fast_bputfield: __ stb(Otos_i, Rclass, Roffset); break; | |
2817 case Bytecodes::_fast_cputfield: /* fall through */ | |
2818 case Bytecodes::_fast_sputfield: __ sth(Otos_i, Rclass, Roffset); break; | |
2819 case Bytecodes::_fast_iputfield: __ st(Otos_i, Rclass, Roffset); break; | |
2820 case Bytecodes::_fast_lputfield: __ st_long(Otos_l, Rclass, Roffset); break; | |
2821 case Bytecodes::_fast_fputfield: | |
2822 __ stf(FloatRegisterImpl::S, Ftos_f, Rclass, Roffset); | |
2823 break; | |
2824 case Bytecodes::_fast_dputfield: | |
2825 __ stf(FloatRegisterImpl::D, Ftos_d, Rclass, Roffset); | |
2826 break; | |
2827 case Bytecodes::_fast_aputfield: | |
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2828 do_oop_store(_masm, Rclass, Roffset, 0, Otos_i, G1_scratch, _bs->kind(), false); |
0 | 2829 break; |
2830 default: | |
2831 ShouldNotReachHere(); | |
2832 } | |
2833 | |
2834 if (__ membar_has_effect(write_bits)) { | |
3839 | 2835 __ cmp_and_br_short(Lscratch, 0, Assembler::equal, Assembler::pt, exit); |
0 | 2836 volatile_barrier(Assembler::StoreLoad); |
2837 __ bind(exit); | |
2838 } | |
2839 } | |
2840 | |
2841 | |
2842 void TemplateTable::putfield(int byte_no) { | |
2843 putfield_or_static(byte_no, false); | |
2844 } | |
2845 | |
2846 void TemplateTable::putstatic(int byte_no) { | |
2847 putfield_or_static(byte_no, true); | |
2848 } | |
2849 | |
2850 | |
2851 void TemplateTable::fast_xaccess(TosState state) { | |
2852 transition(vtos, state); | |
2853 Register Rcache = G3_scratch; | |
2854 Register Roffset = G4_scratch; | |
2855 Register Rflags = G4_scratch; | |
2856 Register Rreceiver = Lscratch; | |
2857 | |
1506 | 2858 __ ld_ptr(Llocals, 0, Rreceiver); |
0 | 2859 |
2860 // access constant pool cache (is resolved) | |
2861 __ get_cache_and_index_at_bcp(Rcache, G4_scratch, 2); | |
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2862 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::f2_offset(), Roffset); |
0 | 2863 __ add(Lbcp, 1, Lbcp); // needed to report exception at the correct bcp |
2864 | |
2865 __ verify_oop(Rreceiver); | |
2866 __ null_check(Rreceiver); | |
2867 if (state == atos) { | |
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2868 __ load_heap_oop(Rreceiver, Roffset, Otos_i); |
0 | 2869 } else if (state == itos) { |
2870 __ ld (Rreceiver, Roffset, Otos_i) ; | |
2871 } else if (state == ftos) { | |
2872 __ ldf(FloatRegisterImpl::S, Rreceiver, Roffset, Ftos_f); | |
2873 } else { | |
2874 ShouldNotReachHere(); | |
2875 } | |
2876 | |
2877 Assembler::Membar_mask_bits membar_bits = | |
2878 Assembler::Membar_mask_bits(Assembler::LoadLoad | Assembler::LoadStore); | |
2879 if (__ membar_has_effect(membar_bits)) { | |
2880 | |
2881 // Get is_volatile value in Rflags and check if membar is needed | |
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2882 __ ld_ptr(Rcache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::flags_offset(), Rflags); |
0 | 2883 |
2884 // Test volatile | |
2885 Label notVolatile; | |
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2886 __ set((1 << ConstantPoolCacheEntry::is_volatile_shift), Lscratch); |
0 | 2887 __ btst(Rflags, Lscratch); |
2888 __ br(Assembler::zero, false, Assembler::pt, notVolatile); | |
2889 __ delayed()->nop(); | |
2890 volatile_barrier(membar_bits); | |
2891 __ bind(notVolatile); | |
2892 } | |
2893 | |
2894 __ interp_verify_oop(Otos_i, state, __FILE__, __LINE__); | |
2895 __ sub(Lbcp, 1, Lbcp); | |
2896 } | |
2897 | |
2898 //---------------------------------------------------------------------------------------------------- | |
2899 // Calls | |
2900 | |
2901 void TemplateTable::count_calls(Register method, Register temp) { | |
2902 // implemented elsewhere | |
2903 ShouldNotReachHere(); | |
2904 } | |
2905 | |
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2906 void TemplateTable::prepare_invoke(int byte_no, |
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2907 Register method, // linked method (or i-klass) |
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2908 Register ra, // return address |
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2909 Register index, // itable index, MethodType, etc. |
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2910 Register recv, // if caller wants to see it |
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2911 Register flags // if caller wants to test it |
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2912 ) { |
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2913 // determine flags |
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2914 const Bytecodes::Code code = bytecode(); |
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2915 const bool is_invokeinterface = code == Bytecodes::_invokeinterface; |
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2916 const bool is_invokedynamic = code == Bytecodes::_invokedynamic; |
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2917 const bool is_invokehandle = code == Bytecodes::_invokehandle; |
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2918 const bool is_invokevirtual = code == Bytecodes::_invokevirtual; |
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2919 const bool is_invokespecial = code == Bytecodes::_invokespecial; |
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2920 const bool load_receiver = (recv != noreg); |
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2921 assert(load_receiver == (code != Bytecodes::_invokestatic && code != Bytecodes::_invokedynamic), ""); |
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2922 assert(recv == noreg || recv == O0, ""); |
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2923 assert(flags == noreg || flags == O1, ""); |
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2924 |
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2925 // setup registers & access constant pool cache |
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2926 if (recv == noreg) recv = O0; |
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2927 if (flags == noreg) flags = O1; |
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2928 const Register temp = O2; |
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2929 assert_different_registers(method, ra, index, recv, flags, temp); |
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2930 |
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2931 load_invoke_cp_cache_entry(byte_no, method, index, flags, is_invokevirtual, false, is_invokedynamic); |
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2932 |
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2933 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
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2934 |
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2935 // maybe push appendix to arguments |
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2936 if (is_invokedynamic || is_invokehandle) { |
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2937 Label L_no_push; |
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2938 __ set((1 << ConstantPoolCacheEntry::has_appendix_shift), temp); |
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2939 __ btst(flags, temp); |
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2940 __ br(Assembler::zero, false, Assembler::pt, L_no_push); |
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2941 __ delayed()->nop(); |
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2942 // Push the appendix as a trailing parameter. |
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2943 // This must be done before we get the receiver, |
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2944 // since the parameter_size includes it. |
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2945 assert(ConstantPoolCacheEntry::_indy_resolved_references_appendix_offset == 0, "appendix expected at index+0"); |
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2946 __ load_resolved_reference_at_index(temp, index); |
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2947 __ verify_oop(temp); |
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2948 __ push_ptr(temp); // push appendix (MethodType, CallSite, etc.) |
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2949 __ bind(L_no_push); |
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2950 } |
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2951 |
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2952 // load receiver if needed (after appendix is pushed so parameter size is correct) |
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2953 if (load_receiver) { |
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2954 __ and3(flags, ConstantPoolCacheEntry::parameter_size_mask, temp); // get parameter size |
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2955 __ load_receiver(temp, recv); // __ argument_address uses Gargs but we need Lesp |
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2956 __ verify_oop(recv); |
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2957 } |
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2958 |
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2959 // compute return type |
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2960 __ srl(flags, ConstantPoolCacheEntry::tos_state_shift, ra); |
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2961 // Make sure we don't need to mask flags after the above shift |
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2962 ConstantPoolCacheEntry::verify_tos_state_shift(); |
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2963 // load return address |
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2964 { |
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2965 const address table_addr = (is_invokeinterface || is_invokedynamic) ? |
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2966 (address)Interpreter::return_5_addrs_by_index_table() : |
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2967 (address)Interpreter::return_3_addrs_by_index_table(); |
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2968 AddressLiteral table(table_addr); |
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2969 __ set(table, temp); |
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2970 __ sll(ra, LogBytesPerWord, ra); |
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2971 __ ld_ptr(Address(temp, ra), ra); |
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2972 } |
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2973 } |
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2974 |
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2975 |
0 | 2976 void TemplateTable::generate_vtable_call(Register Rrecv, Register Rindex, Register Rret) { |
2977 Register Rtemp = G4_scratch; | |
2978 Register Rcall = Rindex; | |
2979 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
2980 | |
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2981 // get target Method* & entry point |
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2982 __ lookup_virtual_method(Rrecv, Rindex, G5_method); |
0 | 2983 __ call_from_interpreter(Rcall, Gargs, Rret); |
2984 } | |
2985 | |
2986 void TemplateTable::invokevirtual(int byte_no) { | |
2987 transition(vtos, vtos); | |
1565 | 2988 assert(byte_no == f2_byte, "use this argument"); |
0 | 2989 |
2990 Register Rscratch = G3_scratch; | |
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2991 Register Rtemp = G4_scratch; |
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2992 Register Rret = Lscratch; |
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2993 Register O0_recv = O0; |
0 | 2994 Label notFinal; |
2995 | |
1565 | 2996 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Rret, true, false, false); |
0 | 2997 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
2998 | |
2999 // Check for vfinal | |
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3000 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), G4_scratch); |
0 | 3001 __ btst(Rret, G4_scratch); |
3002 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
3003 __ delayed()->and3(Rret, 0xFF, G4_scratch); // gets number of parameters | |
3004 | |
3005 patch_bytecode(Bytecodes::_fast_invokevfinal, Rscratch, Rtemp); | |
3006 | |
3007 invokevfinal_helper(Rscratch, Rret); | |
3008 | |
3009 __ bind(notFinal); | |
3010 | |
3011 __ mov(G5_method, Rscratch); // better scratch register | |
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3012 __ load_receiver(G4_scratch, O0_recv); // gets receiverOop |
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3013 // receiver is in O0_recv |
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3014 __ verify_oop(O0_recv); |
0 | 3015 |
3016 // get return address | |
727 | 3017 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
3018 __ set(table, Rtemp); | |
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3019 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3020 // Make sure we don't need to mask Rret after the above shift |
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3021 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 3022 __ sll(Rret, LogBytesPerWord, Rret); |
3023 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
3024 | |
3025 // get receiver klass | |
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3026 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3027 __ load_klass(O0_recv, O0_recv); |
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3028 __ verify_klass_ptr(O0_recv); |
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3029 |
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3030 __ profile_virtual_call(O0_recv, O4); |
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3031 |
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3032 generate_vtable_call(O0_recv, Rscratch, Rret); |
0 | 3033 } |
3034 | |
3035 void TemplateTable::fast_invokevfinal(int byte_no) { | |
3036 transition(vtos, vtos); | |
1565 | 3037 assert(byte_no == f2_byte, "use this argument"); |
0 | 3038 |
3039 load_invoke_cp_cache_entry(byte_no, G5_method, noreg, Lscratch, true, | |
1565 | 3040 /*is_invokevfinal*/true, false); |
0 | 3041 __ mov(SP, O5_savedSP); // record SP that we wanted the callee to restore |
3042 invokevfinal_helper(G3_scratch, Lscratch); | |
3043 } | |
3044 | |
3045 void TemplateTable::invokevfinal_helper(Register Rscratch, Register Rret) { | |
3046 Register Rtemp = G4_scratch; | |
3047 | |
3048 // Load receiver from stack slot | |
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3049 __ ld_ptr(G5_method, in_bytes(Method::const_offset()), G4_scratch); |
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3050 __ lduh(G4_scratch, in_bytes(ConstMethod::size_of_parameters_offset()), G4_scratch); |
0 | 3051 __ load_receiver(G4_scratch, O0); |
3052 | |
3053 // receiver NULL check | |
3054 __ null_check(O0); | |
3055 | |
3056 __ profile_final_call(O4); | |
3057 | |
3058 // get return address | |
727 | 3059 AddressLiteral table(Interpreter::return_3_addrs_by_index_table()); |
3060 __ set(table, Rtemp); | |
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3061 __ srl(Rret, ConstantPoolCacheEntry::tos_state_shift, Rret); // get return type |
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3062 // Make sure we don't need to mask Rret after the above shift |
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3063 ConstantPoolCacheEntry::verify_tos_state_shift(); |
0 | 3064 __ sll(Rret, LogBytesPerWord, Rret); |
3065 __ ld_ptr(Rtemp, Rret, Rret); // get return address | |
3066 | |
3067 | |
3068 // do the call | |
3069 __ call_from_interpreter(Rscratch, Gargs, Rret); | |
3070 } | |
3071 | |
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3072 |
0 | 3073 void TemplateTable::invokespecial(int byte_no) { |
3074 transition(vtos, vtos); | |
1565 | 3075 assert(byte_no == f1_byte, "use this argument"); |
0 | 3076 |
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3077 const Register Rret = Lscratch; |
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3078 const Register O0_recv = O0; |
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3079 const Register Rscratch = G3_scratch; |
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3080 |
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3081 prepare_invoke(byte_no, G5_method, Rret, noreg, O0_recv); // get receiver also for null check |
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3082 __ null_check(O0_recv); |
0 | 3083 |
3084 // do the call | |
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3085 __ profile_call(O4); |
0 | 3086 __ call_from_interpreter(Rscratch, Gargs, Rret); |
3087 } | |
3088 | |
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3089 |
0 | 3090 void TemplateTable::invokestatic(int byte_no) { |
3091 transition(vtos, vtos); | |
1565 | 3092 assert(byte_no == f1_byte, "use this argument"); |
0 | 3093 |
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3094 const Register Rret = Lscratch; |
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3095 const Register Rscratch = G3_scratch; |
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3096 |
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3097 prepare_invoke(byte_no, G5_method, Rret); // get f1 Method* |
0 | 3098 |
3099 // do the call | |
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3100 __ profile_call(O4); |
0 | 3101 __ call_from_interpreter(Rscratch, Gargs, Rret); |
3102 } | |
3103 | |
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3104 void TemplateTable::invokeinterface_object_method(Register RKlass, |
0 | 3105 Register Rcall, |
3106 Register Rret, | |
3107 Register Rflags) { | |
3108 Register Rscratch = G4_scratch; | |
3109 Register Rindex = Lscratch; | |
3110 | |
3111 assert_different_registers(Rscratch, Rindex, Rret); | |
3112 | |
3113 Label notFinal; | |
3114 | |
3115 // Check for vfinal | |
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3116 __ set((1 << ConstantPoolCacheEntry::is_vfinal_shift), Rscratch); |
0 | 3117 __ btst(Rflags, Rscratch); |
3118 __ br(Assembler::zero, false, Assembler::pt, notFinal); | |
3119 __ delayed()->nop(); | |
3120 | |
3121 __ profile_final_call(O4); | |
3122 | |
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3123 // do the call - the index (f2) contains the Method* |
0 | 3124 assert_different_registers(G5_method, Gargs, Rcall); |
3125 __ mov(Rindex, G5_method); | |
3126 __ call_from_interpreter(Rcall, Gargs, Rret); | |
3127 __ bind(notFinal); | |
3128 | |
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3129 __ profile_virtual_call(RKlass, O4); |
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3130 generate_vtable_call(RKlass, Rindex, Rret); |
0 | 3131 } |
3132 | |
3133 | |
3134 void TemplateTable::invokeinterface(int byte_no) { | |
3135 transition(vtos, vtos); | |
1565 | 3136 assert(byte_no == f1_byte, "use this argument"); |
0 | 3137 |
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3138 const Register Rinterface = G1_scratch; |
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3139 const Register Rret = G3_scratch; |
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3140 const Register Rindex = Lscratch; |
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3141 const Register O0_recv = O0; |
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3142 const Register O1_flags = O1; |
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3143 const Register O2_Klass = O2; |
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3144 const Register Rscratch = G4_scratch; |
0 | 3145 assert_different_registers(Rscratch, G5_method); |
3146 | |
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3147 prepare_invoke(byte_no, Rinterface, Rret, Rindex, O0_recv, O1_flags); |
0 | 3148 |
3149 // get receiver klass | |
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3150 __ null_check(O0_recv, oopDesc::klass_offset_in_bytes()); |
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3151 __ load_klass(O0_recv, O2_Klass); |
0 | 3152 |
3153 // Special case of invokeinterface called for virtual method of | |
3154 // java.lang.Object. See cpCacheOop.cpp for details. | |
3155 // This code isn't produced by javac, but could be produced by | |
3156 // another compliant java compiler. | |
3157 Label notMethod; | |
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3158 __ set((1 << ConstantPoolCacheEntry::is_forced_virtual_shift), Rscratch); |
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3159 __ btst(O1_flags, Rscratch); |
0 | 3160 __ br(Assembler::zero, false, Assembler::pt, notMethod); |
3161 __ delayed()->nop(); | |
3162 | |
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3163 invokeinterface_object_method(O2_Klass, Rinterface, Rret, O1_flags); |
0 | 3164 |
3165 __ bind(notMethod); | |
3166 | |
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3167 __ profile_virtual_call(O2_Klass, O4); |
0 | 3168 |
3169 // | |
3170 // find entry point to call | |
3171 // | |
3172 | |
3173 // compute start of first itableOffsetEntry (which is at end of vtable) | |
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3174 const int base = InstanceKlass::vtable_start_offset() * wordSize; |
0 | 3175 Label search; |
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3176 Register Rtemp = O1_flags; |
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3177 |
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3178 __ ld(O2_Klass, InstanceKlass::vtable_length_offset() * wordSize, Rtemp); |
0 | 3179 if (align_object_offset(1) > 1) { |
3180 __ round_to(Rtemp, align_object_offset(1)); | |
3181 } | |
3182 __ sll(Rtemp, LogBytesPerWord, Rtemp); // Rscratch *= 4; | |
3183 if (Assembler::is_simm13(base)) { | |
3184 __ add(Rtemp, base, Rtemp); | |
3185 } else { | |
3186 __ set(base, Rscratch); | |
3187 __ add(Rscratch, Rtemp, Rtemp); | |
3188 } | |
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3189 __ add(O2_Klass, Rtemp, Rscratch); |
0 | 3190 |
3191 __ bind(search); | |
3192 | |
3193 __ ld_ptr(Rscratch, itableOffsetEntry::interface_offset_in_bytes(), Rtemp); | |
3194 { | |
3195 Label ok; | |
3196 | |
3197 // Check that entry is non-null. Null entries are probably a bytecode | |
605 | 3198 // problem. If the interface isn't implemented by the receiver class, |
0 | 3199 // the VM should throw IncompatibleClassChangeError. linkResolver checks |
3200 // this too but that's only if the entry isn't already resolved, so we | |
3201 // need to check again. | |
3839 | 3202 __ br_notnull_short( Rtemp, Assembler::pt, ok); |
0 | 3203 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_IncompatibleClassChangeError)); |
3204 __ should_not_reach_here(); | |
3205 __ bind(ok); | |
3206 } | |
3207 | |
3208 __ cmp(Rinterface, Rtemp); | |
3209 __ brx(Assembler::notEqual, true, Assembler::pn, search); | |
3210 __ delayed()->add(Rscratch, itableOffsetEntry::size() * wordSize, Rscratch); | |
3211 | |
3212 // entry found and Rscratch points to it | |
3213 __ ld(Rscratch, itableOffsetEntry::offset_offset_in_bytes(), Rscratch); | |
3214 | |
3215 assert(itableMethodEntry::method_offset_in_bytes() == 0, "adjust instruction below"); | |
3216 __ sll(Rindex, exact_log2(itableMethodEntry::size() * wordSize), Rindex); // Rindex *= 8; | |
3217 __ add(Rscratch, Rindex, Rscratch); | |
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3218 __ ld_ptr(O2_Klass, Rscratch, G5_method); |
0 | 3219 |
3220 // Check for abstract method error. | |
3221 { | |
3222 Label ok; | |
3839 | 3223 __ br_notnull_short(G5_method, Assembler::pt, ok); |
0 | 3224 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_AbstractMethodError)); |
3225 __ should_not_reach_here(); | |
3226 __ bind(ok); | |
3227 } | |
3228 | |
3229 Register Rcall = Rinterface; | |
3230 assert_different_registers(Rcall, G5_method, Gargs, Rret); | |
3231 | |
3232 __ call_from_interpreter(Rcall, Gargs, Rret); | |
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3233 } |
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3234 |
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3235 void TemplateTable::invokehandle(int byte_no) { |
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3236 transition(vtos, vtos); |
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3237 assert(byte_no == f1_byte, "use this argument"); |
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3238 |
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3239 if (!EnableInvokeDynamic) { |
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3240 // rewriter does not generate this bytecode |
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|
3241 __ should_not_reach_here(); |
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3242 return; |
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|
3243 } |
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|
3244 |
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3245 const Register Rret = Lscratch; |
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3246 const Register G4_mtype = G4_scratch; |
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3247 const Register O0_recv = O0; |
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3248 const Register Rscratch = G3_scratch; |
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3249 |
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3250 prepare_invoke(byte_no, G5_method, Rret, G4_mtype, O0_recv); |
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3251 __ null_check(O0_recv); |
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3252 |
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3253 // G4: MethodType object (from cpool->resolved_references[f1], if necessary) |
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3254 // G5: MH.invokeExact_MT method (from f2) |
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3255 |
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3256 // Note: G4_mtype is already pushed (if necessary) by prepare_invoke |
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3257 |
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3258 // do the call |
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3259 __ verify_oop(G4_mtype); |
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3260 __ profile_final_call(O4); // FIXME: profile the LambdaForm also |
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3261 __ call_from_interpreter(Rscratch, Gargs, Rret); |
0 | 3262 } |
3263 | |
3264 | |
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3265 void TemplateTable::invokedynamic(int byte_no) { |
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3266 transition(vtos, vtos); |
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3267 assert(byte_no == f1_byte, "use this argument"); |
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|
3268 |
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3269 if (!EnableInvokeDynamic) { |
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3270 // We should not encounter this bytecode if !EnableInvokeDynamic. |
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3271 // The verifier will stop it. However, if we get past the verifier, |
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|
3272 // this will stop the thread in a reasonable way, without crashing the JVM. |
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|
3273 __ call_VM(noreg, CAST_FROM_FN_PTR(address, |
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|
3274 InterpreterRuntime::throw_IncompatibleClassChangeError)); |
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|
3275 // the call_VM checks for exception, so we should never return here. |
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|
3276 __ should_not_reach_here(); |
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|
3277 return; |
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|
3278 } |
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|
3279 |
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3280 const Register Rret = Lscratch; |
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3281 const Register G4_callsite = G4_scratch; |
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3282 const Register Rscratch = G3_scratch; |
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3283 |
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3284 prepare_invoke(byte_no, G5_method, Rret, G4_callsite); |
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3285 |
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3286 // G4: CallSite object (from cpool->resolved_references[f1]) |
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3287 // G5: MH.linkToCallSite method (from f2) |
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3288 |
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3289 // Note: G4_callsite is already pushed by prepare_invoke |
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3290 |
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|
3291 // %%% should make a type profile for any invokedynamic that takes a ref argument |
1503 | 3292 // profile this call |
3293 __ profile_call(O4); | |
3294 | |
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3295 // do the call |
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3296 __ verify_oop(G4_callsite); |
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3297 __ call_from_interpreter(Rscratch, Gargs, Rret); |
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|
3298 } |
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|
3299 |
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|
3300 |
0 | 3301 //---------------------------------------------------------------------------------------------------- |
3302 // Allocation | |
3303 | |
3304 void TemplateTable::_new() { | |
3305 transition(vtos, atos); | |
3306 | |
3307 Label slow_case; | |
3308 Label done; | |
3309 Label initialize_header; | |
3310 Label initialize_object; // including clearing the fields | |
3311 | |
3312 Register RallocatedObject = Otos_i; | |
3313 Register RinstanceKlass = O1; | |
3314 Register Roffset = O3; | |
3315 Register Rscratch = O4; | |
3316 | |
3317 __ get_2_byte_integer_at_bcp(1, Rscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3318 __ get_cpool_and_tags(Rscratch, G3_scratch); | |
3319 // make sure the class we're about to instantiate has been resolved | |
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3320 // This is done before loading InstanceKlass to be consistent with the order |
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3321 // how Constant Pool is updated (see ConstantPool::klass_at_put) |
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3322 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3323 __ ldub(G3_scratch, Roffset, G3_scratch); |
3324 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3325 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); | |
3326 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
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3327 // get InstanceKlass |
0 | 3328 //__ sll(Roffset, LogBytesPerWord, Roffset); // executed in delay slot |
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3329 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3330 __ ld_ptr(Rscratch, Roffset, RinstanceKlass); |
3331 | |
3332 // make sure klass is fully initialized: | |
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3333 __ ldub(RinstanceKlass, in_bytes(InstanceKlass::init_state_offset()), G3_scratch); |
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3334 __ cmp(G3_scratch, InstanceKlass::fully_initialized); |
0 | 3335 __ br(Assembler::notEqual, false, Assembler::pn, slow_case); |
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|
3336 __ delayed()->ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
0 | 3337 |
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3338 // get instance_size in InstanceKlass (already aligned) |
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3339 //__ ld(RinstanceKlass, in_bytes(Klass::layout_helper_offset()), Roffset); |
0 | 3340 |
3341 // make sure klass does not have has_finalizer, or is abstract, or interface or java/lang/Class | |
3342 __ btst(Klass::_lh_instance_slow_path_bit, Roffset); | |
3343 __ br(Assembler::notZero, false, Assembler::pn, slow_case); | |
3344 __ delayed()->nop(); | |
3345 | |
3346 // allocate the instance | |
3347 // 1) Try to allocate in the TLAB | |
3348 // 2) if fail, and the TLAB is not full enough to discard, allocate in the shared Eden | |
3349 // 3) if the above fails (or is not applicable), go to a slow case | |
3350 // (creates a new TLAB, etc.) | |
3351 | |
3352 const bool allow_shared_alloc = | |
3353 Universe::heap()->supports_inline_contig_alloc() && !CMSIncrementalMode; | |
3354 | |
3355 if(UseTLAB) { | |
3356 Register RoldTopValue = RallocatedObject; | |
3892 | 3357 Register RtlabWasteLimitValue = G3_scratch; |
0 | 3358 Register RnewTopValue = G1_scratch; |
3359 Register RendValue = Rscratch; | |
3360 Register RfreeValue = RnewTopValue; | |
3361 | |
3362 // check if we can allocate in the TLAB | |
3363 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_top_offset()), RoldTopValue); // sets up RalocatedObject | |
3364 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_end_offset()), RendValue); | |
3365 __ add(RoldTopValue, Roffset, RnewTopValue); | |
3366 | |
3367 // if there is enough space, we do not CAS and do not clear | |
3368 __ cmp(RnewTopValue, RendValue); | |
3369 if(ZeroTLAB) { | |
3370 // the fields have already been cleared | |
3371 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_header); | |
3372 } else { | |
3373 // initialize both the header and fields | |
3374 __ brx(Assembler::lessEqualUnsigned, true, Assembler::pt, initialize_object); | |
3375 } | |
3376 __ delayed()->st_ptr(RnewTopValue, G2_thread, in_bytes(JavaThread::tlab_top_offset())); | |
3377 | |
3378 if (allow_shared_alloc) { | |
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3379 // Check if tlab should be discarded (refill_waste_limit >= free) |
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3380 __ ld_ptr(G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset()), RtlabWasteLimitValue); |
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3381 __ sub(RendValue, RoldTopValue, RfreeValue); |
0 | 3382 #ifdef _LP64 |
2100
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3383 __ srlx(RfreeValue, LogHeapWordSize, RfreeValue); |
0 | 3384 #else |
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3385 __ srl(RfreeValue, LogHeapWordSize, RfreeValue); |
0 | 3386 #endif |
3839 | 3387 __ cmp_and_brx_short(RtlabWasteLimitValue, RfreeValue, Assembler::greaterEqualUnsigned, Assembler::pt, slow_case); // tlab waste is small |
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|
3388 |
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3389 // increment waste limit to prevent getting stuck on this slow path |
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3390 __ add(RtlabWasteLimitValue, ThreadLocalAllocBuffer::refill_waste_limit_increment(), RtlabWasteLimitValue); |
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3391 __ st_ptr(RtlabWasteLimitValue, G2_thread, in_bytes(JavaThread::tlab_refill_waste_limit_offset())); |
0 | 3392 } else { |
3393 // No allocation in the shared eden. | |
3839 | 3394 __ ba_short(slow_case); |
0 | 3395 } |
3396 } | |
3397 | |
3398 // Allocation in the shared Eden | |
3399 if (allow_shared_alloc) { | |
3400 Register RoldTopValue = G1_scratch; | |
3401 Register RtopAddr = G3_scratch; | |
3402 Register RnewTopValue = RallocatedObject; | |
3403 Register RendValue = Rscratch; | |
3404 | |
3405 __ set((intptr_t)Universe::heap()->top_addr(), RtopAddr); | |
3406 | |
3407 Label retry; | |
3408 __ bind(retry); | |
3409 __ set((intptr_t)Universe::heap()->end_addr(), RendValue); | |
3410 __ ld_ptr(RendValue, 0, RendValue); | |
3411 __ ld_ptr(RtopAddr, 0, RoldTopValue); | |
3412 __ add(RoldTopValue, Roffset, RnewTopValue); | |
3413 | |
3414 // RnewTopValue contains the top address after the new object | |
3415 // has been allocated. | |
3839 | 3416 __ cmp_and_brx_short(RnewTopValue, RendValue, Assembler::greaterUnsigned, Assembler::pn, slow_case); |
0 | 3417 |
3418 __ casx_under_lock(RtopAddr, RoldTopValue, RnewTopValue, | |
3419 VM_Version::v9_instructions_work() ? NULL : | |
3420 (address)StubRoutines::Sparc::atomic_memory_operation_lock_addr()); | |
3421 | |
3422 // if someone beat us on the allocation, try again, otherwise continue | |
3839 | 3423 __ cmp_and_brx_short(RoldTopValue, RnewTopValue, Assembler::notEqual, Assembler::pn, retry); |
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3424 |
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3425 // bump total bytes allocated by this thread |
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3426 // RoldTopValue and RtopAddr are dead, so can use G1 and G3 |
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3427 __ incr_allocated_bytes(Roffset, G1_scratch, G3_scratch); |
0 | 3428 } |
3429 | |
3430 if (UseTLAB || Universe::heap()->supports_inline_contig_alloc()) { | |
3431 // clear object fields | |
3432 __ bind(initialize_object); | |
3433 __ deccc(Roffset, sizeof(oopDesc)); | |
3434 __ br(Assembler::zero, false, Assembler::pt, initialize_header); | |
3435 __ delayed()->add(RallocatedObject, sizeof(oopDesc), G3_scratch); | |
3436 | |
3437 // initialize remaining object fields | |
3892 | 3438 if (UseBlockZeroing) { |
3439 // Use BIS for zeroing | |
3440 __ bis_zeroing(G3_scratch, Roffset, G1_scratch, initialize_header); | |
3441 } else { | |
3442 Label loop; | |
0 | 3443 __ subcc(Roffset, wordSize, Roffset); |
3444 __ bind(loop); | |
3445 //__ subcc(Roffset, wordSize, Roffset); // executed above loop or in delay slot | |
3446 __ st_ptr(G0, G3_scratch, Roffset); | |
3447 __ br(Assembler::notEqual, false, Assembler::pt, loop); | |
3448 __ delayed()->subcc(Roffset, wordSize, Roffset); | |
3449 } | |
3839 | 3450 __ ba_short(initialize_header); |
0 | 3451 } |
3452 | |
3453 // slow case | |
3454 __ bind(slow_case); | |
3455 __ get_2_byte_integer_at_bcp(1, G3_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
3456 __ get_constant_pool(O1); | |
3457 | |
3458 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::_new), O1, O2); | |
3459 | |
3839 | 3460 __ ba_short(done); |
0 | 3461 |
3462 // Initialize the header: mark, klass | |
3463 __ bind(initialize_header); | |
3464 | |
3465 if (UseBiasedLocking) { | |
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3466 __ ld_ptr(RinstanceKlass, in_bytes(Klass::prototype_header_offset()), G4_scratch); |
0 | 3467 } else { |
3468 __ set((intptr_t)markOopDesc::prototype(), G4_scratch); | |
3469 } | |
3470 __ st_ptr(G4_scratch, RallocatedObject, oopDesc::mark_offset_in_bytes()); // mark | |
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3471 __ store_klass_gap(G0, RallocatedObject); // klass gap if compressed |
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3472 __ store_klass(RinstanceKlass, RallocatedObject); // klass (last for cms) |
0 | 3473 |
3474 { | |
3475 SkipIfEqual skip_if( | |
3476 _masm, G4_scratch, &DTraceAllocProbes, Assembler::zero); | |
3477 // Trigger dtrace event | |
3478 __ push(atos); | |
3479 __ call_VM_leaf(noreg, | |
3480 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_object_alloc), O0); | |
3481 __ pop(atos); | |
3482 } | |
3483 | |
3484 // continue | |
3485 __ bind(done); | |
3486 } | |
3487 | |
3488 | |
3489 | |
3490 void TemplateTable::newarray() { | |
3491 transition(itos, atos); | |
3492 __ ldub(Lbcp, 1, O1); | |
3493 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::newarray), O1, Otos_i); | |
3494 } | |
3495 | |
3496 | |
3497 void TemplateTable::anewarray() { | |
3498 transition(itos, atos); | |
3499 __ get_constant_pool(O1); | |
3500 __ get_2_byte_integer_at_bcp(1, G4_scratch, O2, InterpreterMacroAssembler::Unsigned); | |
3501 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::anewarray), O1, O2, Otos_i); | |
3502 } | |
3503 | |
3504 | |
3505 void TemplateTable::arraylength() { | |
3506 transition(atos, itos); | |
3507 Label ok; | |
3508 __ verify_oop(Otos_i); | |
3509 __ tst(Otos_i); | |
3510 __ throw_if_not_1_x( Assembler::notZero, ok ); | |
3511 __ delayed()->ld(Otos_i, arrayOopDesc::length_offset_in_bytes(), Otos_i); | |
3512 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
3513 } | |
3514 | |
3515 | |
3516 void TemplateTable::checkcast() { | |
3517 transition(atos, atos); | |
3518 Label done, is_null, quicked, cast_ok, resolved; | |
3519 Register Roffset = G1_scratch; | |
3520 Register RobjKlass = O5; | |
3521 Register RspecifiedKlass = O4; | |
3522 | |
3523 // Check for casting a NULL | |
3839 | 3524 __ br_null_short(Otos_i, Assembler::pn, is_null); |
0 | 3525 |
3526 // Get value klass in RobjKlass | |
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3527 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3528 |
3529 // Get constant pool tag | |
3530 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3531 | |
3532 // See if the checkcast has been quickened | |
3533 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3534 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3535 __ ldub(G3_scratch, Roffset, G3_scratch); |
3536 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3537 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
3538 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
3539 | |
3540 __ push_ptr(); // save receiver for result, and for GC | |
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3541 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3542 __ get_vm_result_2(RspecifiedKlass); |
0 | 3543 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
3544 | |
3839 | 3545 __ ba_short(resolved); |
0 | 3546 |
3547 // Extract target class from constant pool | |
3548 __ bind(quicked); | |
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3549 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3550 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); |
3551 __ bind(resolved); | |
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3552 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3553 |
3554 // Generate a fast subtype check. Branch to cast_ok if no | |
3555 // failure. Throw exception if failure. | |
3556 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, cast_ok ); | |
3557 | |
3558 // Not a subtype; so must throw exception | |
3559 __ throw_if_not_x( Assembler::never, Interpreter::_throw_ClassCastException_entry, G3_scratch ); | |
3560 | |
3561 __ bind(cast_ok); | |
3562 | |
3563 if (ProfileInterpreter) { | |
3839 | 3564 __ ba_short(done); |
0 | 3565 } |
3566 __ bind(is_null); | |
3567 __ profile_null_seen(G3_scratch); | |
3568 __ bind(done); | |
3569 } | |
3570 | |
3571 | |
3572 void TemplateTable::instanceof() { | |
3573 Label done, is_null, quicked, resolved; | |
3574 transition(atos, itos); | |
3575 Register Roffset = G1_scratch; | |
3576 Register RobjKlass = O5; | |
3577 Register RspecifiedKlass = O4; | |
3578 | |
3579 // Check for casting a NULL | |
3839 | 3580 __ br_null_short(Otos_i, Assembler::pt, is_null); |
0 | 3581 |
3582 // Get value klass in RobjKlass | |
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3583 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3584 |
3585 // Get constant pool tag | |
3586 __ get_2_byte_integer_at_bcp(1, Lscratch, Roffset, InterpreterMacroAssembler::Unsigned); | |
3587 | |
3588 // See if the checkcast has been quickened | |
3589 __ get_cpool_and_tags(Lscratch, G3_scratch); | |
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3590 __ add(G3_scratch, Array<u1>::base_offset_in_bytes(), G3_scratch); |
0 | 3591 __ ldub(G3_scratch, Roffset, G3_scratch); |
3592 __ cmp(G3_scratch, JVM_CONSTANT_Class); | |
3593 __ br(Assembler::equal, true, Assembler::pt, quicked); | |
3594 __ delayed()->sll(Roffset, LogBytesPerWord, Roffset); | |
3595 | |
3596 __ push_ptr(); // save receiver for result, and for GC | |
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3597 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::quicken_io_cc) ); |
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3598 __ get_vm_result_2(RspecifiedKlass); |
0 | 3599 __ pop_ptr(Otos_i, G3_scratch); // restore receiver |
3600 | |
3839 | 3601 __ ba_short(resolved); |
0 | 3602 |
3603 // Extract target class from constant pool | |
3604 __ bind(quicked); | |
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3605 __ add(Roffset, sizeof(ConstantPool), Roffset); |
0 | 3606 __ get_constant_pool(Lscratch); |
3607 __ ld_ptr(Lscratch, Roffset, RspecifiedKlass); | |
3608 __ bind(resolved); | |
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3609 __ load_klass(Otos_i, RobjKlass); // get value klass |
0 | 3610 |
3611 // Generate a fast subtype check. Branch to cast_ok if no | |
3612 // failure. Return 0 if failure. | |
3613 __ or3(G0, 1, Otos_i); // set result assuming quick tests succeed | |
3614 __ gen_subtype_check( RobjKlass, RspecifiedKlass, G3_scratch, G4_scratch, G1_scratch, done ); | |
3615 // Not a subtype; return 0; | |
3616 __ clr( Otos_i ); | |
3617 | |
3618 if (ProfileInterpreter) { | |
3839 | 3619 __ ba_short(done); |
0 | 3620 } |
3621 __ bind(is_null); | |
3622 __ profile_null_seen(G3_scratch); | |
3623 __ bind(done); | |
3624 } | |
3625 | |
3626 void TemplateTable::_breakpoint() { | |
3627 | |
3628 // Note: We get here even if we are single stepping.. | |
3629 // jbug inists on setting breakpoints at every bytecode | |
3630 // even if we are in single step mode. | |
3631 | |
3632 transition(vtos, vtos); | |
3633 // get the unpatched byte code | |
3634 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::get_original_bytecode_at), Lmethod, Lbcp); | |
3635 __ mov(O0, Lbyte_code); | |
3636 | |
3637 // post the breakpoint event | |
3638 __ call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::_breakpoint), Lmethod, Lbcp); | |
3639 | |
3640 // complete the execution of original bytecode | |
3641 __ dispatch_normal(vtos); | |
3642 } | |
3643 | |
3644 | |
3645 //---------------------------------------------------------------------------------------------------- | |
3646 // Exceptions | |
3647 | |
3648 void TemplateTable::athrow() { | |
3649 transition(atos, vtos); | |
3650 | |
3651 // This works because exception is cached in Otos_i which is same as O0, | |
3652 // which is same as what throw_exception_entry_expects | |
3653 assert(Otos_i == Oexception, "see explanation above"); | |
3654 | |
3655 __ verify_oop(Otos_i); | |
3656 __ null_check(Otos_i); | |
3657 __ throw_if_not_x(Assembler::never, Interpreter::throw_exception_entry(), G3_scratch); | |
3658 } | |
3659 | |
3660 | |
3661 //---------------------------------------------------------------------------------------------------- | |
3662 // Synchronization | |
3663 | |
3664 | |
3665 // See frame_sparc.hpp for monitor block layout. | |
3666 // Monitor elements are dynamically allocated by growing stack as needed. | |
3667 | |
3668 void TemplateTable::monitorenter() { | |
3669 transition(atos, vtos); | |
3670 __ verify_oop(Otos_i); | |
3671 // Try to acquire a lock on the object | |
3672 // Repeat until succeeded (i.e., until | |
3673 // monitorenter returns true). | |
3674 | |
3675 { Label ok; | |
3676 __ tst(Otos_i); | |
3677 __ throw_if_not_1_x( Assembler::notZero, ok); | |
3678 __ delayed()->mov(Otos_i, Lscratch); // save obj | |
3679 __ throw_if_not_2( Interpreter::_throw_NullPointerException_entry, G3_scratch, ok); | |
3680 } | |
3681 | |
3682 assert(O0 == Otos_i, "Be sure where the object to lock is"); | |
3683 | |
3684 // find a free slot in the monitor block | |
3685 | |
3686 | |
3687 // initialize entry pointer | |
3688 __ clr(O1); // points to free slot or NULL | |
3689 | |
3690 { | |
3691 Label entry, loop, exit; | |
3692 __ add( __ top_most_monitor(), O2 ); // last one to check | |
3839 | 3693 __ ba( entry ); |
0 | 3694 __ delayed()->mov( Lmonitors, O3 ); // first one to check |
3695 | |
3696 | |
3697 __ bind( loop ); | |
3698 | |
3699 __ verify_oop(O4); // verify each monitor's oop | |
3700 __ tst(O4); // is this entry unused? | |
3701 if (VM_Version::v9_instructions_work()) | |
3702 __ movcc( Assembler::zero, false, Assembler::ptr_cc, O3, O1); | |
3703 else { | |
3704 Label L; | |
3705 __ br( Assembler::zero, true, Assembler::pn, L ); | |
3706 __ delayed()->mov(O3, O1); // rememeber this one if match | |
3707 __ bind(L); | |
3708 } | |
3709 | |
3710 __ cmp(O4, O0); // check if current entry is for same object | |
3711 __ brx( Assembler::equal, false, Assembler::pn, exit ); | |
3712 __ delayed()->inc( O3, frame::interpreter_frame_monitor_size() * wordSize ); // check next one | |
3713 | |
3714 __ bind( entry ); | |
3715 | |
3716 __ cmp( O3, O2 ); | |
3717 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
3718 __ delayed()->ld_ptr(O3, BasicObjectLock::obj_offset_in_bytes(), O4); | |
3719 | |
3720 __ bind( exit ); | |
3721 } | |
3722 | |
3723 { Label allocated; | |
3724 | |
3725 // found free slot? | |
3839 | 3726 __ br_notnull_short(O1, Assembler::pn, allocated); |
0 | 3727 |
3728 __ add_monitor_to_stack( false, O2, O3 ); | |
3729 __ mov(Lmonitors, O1); | |
3730 | |
3731 __ bind(allocated); | |
3732 } | |
3733 | |
3734 // Increment bcp to point to the next bytecode, so exception handling for async. exceptions work correctly. | |
3735 // The object has already been poped from the stack, so the expression stack looks correct. | |
3736 __ inc(Lbcp); | |
3737 | |
3738 __ st_ptr(O0, O1, BasicObjectLock::obj_offset_in_bytes()); // store object | |
3739 __ lock_object(O1, O0); | |
3740 | |
3741 // check if there's enough space on the stack for the monitors after locking | |
3742 __ generate_stack_overflow_check(0); | |
3743 | |
3744 // The bcp has already been incremented. Just need to dispatch to next instruction. | |
3745 __ dispatch_next(vtos); | |
3746 } | |
3747 | |
3748 | |
3749 void TemplateTable::monitorexit() { | |
3750 transition(atos, vtos); | |
3751 __ verify_oop(Otos_i); | |
3752 __ tst(Otos_i); | |
3753 __ throw_if_not_x( Assembler::notZero, Interpreter::_throw_NullPointerException_entry, G3_scratch ); | |
3754 | |
3755 assert(O0 == Otos_i, "just checking"); | |
3756 | |
3757 { Label entry, loop, found; | |
3758 __ add( __ top_most_monitor(), O2 ); // last one to check | |
3839 | 3759 __ ba(entry); |
0 | 3760 // use Lscratch to hold monitor elem to check, start with most recent monitor, |
3761 // By using a local it survives the call to the C routine. | |
3762 __ delayed()->mov( Lmonitors, Lscratch ); | |
3763 | |
3764 __ bind( loop ); | |
3765 | |
3766 __ verify_oop(O4); // verify each monitor's oop | |
3767 __ cmp(O4, O0); // check if current entry is for desired object | |
3768 __ brx( Assembler::equal, true, Assembler::pt, found ); | |
3769 __ delayed()->mov(Lscratch, O1); // pass found entry as argument to monitorexit | |
3770 | |
3771 __ inc( Lscratch, frame::interpreter_frame_monitor_size() * wordSize ); // advance to next | |
3772 | |
3773 __ bind( entry ); | |
3774 | |
3775 __ cmp( Lscratch, O2 ); | |
3776 __ brx( Assembler::lessEqualUnsigned, true, Assembler::pt, loop ); | |
3777 __ delayed()->ld_ptr(Lscratch, BasicObjectLock::obj_offset_in_bytes(), O4); | |
3778 | |
3779 call_VM(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::throw_illegal_monitor_state_exception)); | |
3780 __ should_not_reach_here(); | |
3781 | |
3782 __ bind(found); | |
3783 } | |
3784 __ unlock_object(O1); | |
3785 } | |
3786 | |
3787 | |
3788 //---------------------------------------------------------------------------------------------------- | |
3789 // Wide instructions | |
3790 | |
3791 void TemplateTable::wide() { | |
3792 transition(vtos, vtos); | |
3793 __ ldub(Lbcp, 1, G3_scratch);// get next bc | |
3794 __ sll(G3_scratch, LogBytesPerWord, G3_scratch); | |
727 | 3795 AddressLiteral ep(Interpreter::_wentry_point); |
3796 __ set(ep, G4_scratch); | |
3797 __ ld_ptr(G4_scratch, G3_scratch, G3_scratch); | |
0 | 3798 __ jmp(G3_scratch, G0); |
3799 __ delayed()->nop(); | |
3800 // Note: the Lbcp increment step is part of the individual wide bytecode implementations | |
3801 } | |
3802 | |
3803 | |
3804 //---------------------------------------------------------------------------------------------------- | |
3805 // Multi arrays | |
3806 | |
3807 void TemplateTable::multianewarray() { | |
3808 transition(vtos, atos); | |
3809 // put ndims * wordSize into Lscratch | |
3810 __ ldub( Lbcp, 3, Lscratch); | |
1506 | 3811 __ sll( Lscratch, Interpreter::logStackElementSize, Lscratch); |
0 | 3812 // Lesp points past last_dim, so set to O1 to first_dim address |
3813 __ add( Lesp, Lscratch, O1); | |
3814 call_VM(Otos_i, CAST_FROM_FN_PTR(address, InterpreterRuntime::multianewarray), O1); | |
3815 __ add( Lesp, Lscratch, Lesp); // pop all dimensions off the stack | |
3816 } | |
3817 #endif /* !CC_INTERP */ |