jniFastGetField_sparc.cpp revision 1879:f95d63e2154a
1/* 2 * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. 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 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25#include "precompiled.hpp" 26#include "assembler_sparc.inline.hpp" 27#include "memory/resourceArea.hpp" 28#include "prims/jniFastGetField.hpp" 29#include "prims/jvm_misc.hpp" 30#include "runtime/safepoint.hpp" 31 32// TSO ensures that loads are blocking and ordered with respect to 33// to earlier loads, so we don't need LoadLoad membars. 34 35#define __ masm-> 36 37#define BUFFER_SIZE 30*sizeof(jint) 38 39// Common register usage: 40// O0: env 41// O1: obj 42// O2: jfieldID 43// O4: offset (O2 >> 2) 44// G4: old safepoint counter 45 46address JNI_FastGetField::generate_fast_get_int_field0(BasicType type) { 47 const char *name; 48 switch (type) { 49 case T_BOOLEAN: name = "jni_fast_GetBooleanField"; break; 50 case T_BYTE: name = "jni_fast_GetByteField"; break; 51 case T_CHAR: name = "jni_fast_GetCharField"; break; 52 case T_SHORT: name = "jni_fast_GetShortField"; break; 53 case T_INT: name = "jni_fast_GetIntField"; break; 54 default: ShouldNotReachHere(); 55 } 56 ResourceMark rm; 57 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); 58 CodeBuffer cbuf(blob); 59 MacroAssembler* masm = new MacroAssembler(&cbuf); 60 address fast_entry = __ pc(); 61 62 Label label1, label2; 63 64 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); 65 __ sethi (cnt_addrlit, O3); 66 Address cnt_addr(O3, cnt_addrlit.low10()); 67 __ ld (cnt_addr, G4); 68 __ andcc (G4, 1, G0); 69 __ br (Assembler::notZero, false, Assembler::pn, label1); 70 __ delayed()->srl (O2, 2, O4); 71 __ ld_ptr (O1, 0, O5); 72 73 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); 74 speculative_load_pclist[count] = __ pc(); 75 switch (type) { 76 case T_BOOLEAN: __ ldub (O5, O4, G3); break; 77 case T_BYTE: __ ldsb (O5, O4, G3); break; 78 case T_CHAR: __ lduh (O5, O4, G3); break; 79 case T_SHORT: __ ldsh (O5, O4, G3); break; 80 case T_INT: __ ld (O5, O4, G3); break; 81 default: ShouldNotReachHere(); 82 } 83 84 __ ld (cnt_addr, O5); 85 __ cmp (O5, G4); 86 __ br (Assembler::notEqual, false, Assembler::pn, label2); 87 __ delayed()->mov (O7, G1); 88 __ retl (); 89 __ delayed()->mov (G3, O0); 90 91 slowcase_entry_pclist[count++] = __ pc(); 92 __ bind (label1); 93 __ mov (O7, G1); 94 95 address slow_case_addr; 96 switch (type) { 97 case T_BOOLEAN: slow_case_addr = jni_GetBooleanField_addr(); break; 98 case T_BYTE: slow_case_addr = jni_GetByteField_addr(); break; 99 case T_CHAR: slow_case_addr = jni_GetCharField_addr(); break; 100 case T_SHORT: slow_case_addr = jni_GetShortField_addr(); break; 101 case T_INT: slow_case_addr = jni_GetIntField_addr(); break; 102 default: ShouldNotReachHere(); 103 } 104 __ bind (label2); 105 __ call (slow_case_addr, relocInfo::none); 106 __ delayed()->mov (G1, O7); 107 108 __ flush (); 109 110 return fast_entry; 111} 112 113address JNI_FastGetField::generate_fast_get_boolean_field() { 114 return generate_fast_get_int_field0(T_BOOLEAN); 115} 116 117address JNI_FastGetField::generate_fast_get_byte_field() { 118 return generate_fast_get_int_field0(T_BYTE); 119} 120 121address JNI_FastGetField::generate_fast_get_char_field() { 122 return generate_fast_get_int_field0(T_CHAR); 123} 124 125address JNI_FastGetField::generate_fast_get_short_field() { 126 return generate_fast_get_int_field0(T_SHORT); 127} 128 129address JNI_FastGetField::generate_fast_get_int_field() { 130 return generate_fast_get_int_field0(T_INT); 131} 132 133address JNI_FastGetField::generate_fast_get_long_field() { 134 const char *name = "jni_fast_GetLongField"; 135 ResourceMark rm; 136 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); 137 CodeBuffer cbuf(blob); 138 MacroAssembler* masm = new MacroAssembler(&cbuf); 139 address fast_entry = __ pc(); 140 141 Label label1, label2; 142 143 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); 144 __ sethi (cnt_addrlit, G3); 145 Address cnt_addr(G3, cnt_addrlit.low10()); 146 __ ld (cnt_addr, G4); 147 __ andcc (G4, 1, G0); 148 __ br (Assembler::notZero, false, Assembler::pn, label1); 149 __ delayed()->srl (O2, 2, O4); 150 __ ld_ptr (O1, 0, O5); 151 __ add (O5, O4, O5); 152 153#ifndef _LP64 154 assert(count < LIST_CAPACITY-1, "LIST_CAPACITY too small"); 155 speculative_load_pclist[count++] = __ pc(); 156 __ ld (O5, 0, G2); 157 158 speculative_load_pclist[count] = __ pc(); 159 __ ld (O5, 4, O3); 160#else 161 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); 162 speculative_load_pclist[count] = __ pc(); 163 __ ldx (O5, 0, O3); 164#endif 165 166 __ ld (cnt_addr, G1); 167 __ cmp (G1, G4); 168 __ br (Assembler::notEqual, false, Assembler::pn, label2); 169 __ delayed()->mov (O7, G1); 170 171#ifndef _LP64 172 __ mov (G2, O0); 173 __ retl (); 174 __ delayed()->mov (O3, O1); 175#else 176 __ retl (); 177 __ delayed()->mov (O3, O0); 178#endif 179 180#ifndef _LP64 181 slowcase_entry_pclist[count-1] = __ pc(); 182 slowcase_entry_pclist[count++] = __ pc() ; 183#else 184 slowcase_entry_pclist[count++] = __ pc(); 185#endif 186 187 __ bind (label1); 188 __ mov (O7, G1); 189 190 address slow_case_addr = jni_GetLongField_addr(); 191 __ bind (label2); 192 __ call (slow_case_addr, relocInfo::none); 193 __ delayed()->mov (G1, O7); 194 195 __ flush (); 196 197 return fast_entry; 198} 199 200address JNI_FastGetField::generate_fast_get_float_field0(BasicType type) { 201 const char *name; 202 switch (type) { 203 case T_FLOAT: name = "jni_fast_GetFloatField"; break; 204 case T_DOUBLE: name = "jni_fast_GetDoubleField"; break; 205 default: ShouldNotReachHere(); 206 } 207 ResourceMark rm; 208 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); 209 CodeBuffer cbuf(blob); 210 MacroAssembler* masm = new MacroAssembler(&cbuf); 211 address fast_entry = __ pc(); 212 213 Label label1, label2; 214 215 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); 216 __ sethi (cnt_addrlit, O3); 217 Address cnt_addr(O3, cnt_addrlit.low10()); 218 __ ld (cnt_addr, G4); 219 __ andcc (G4, 1, G0); 220 __ br (Assembler::notZero, false, Assembler::pn, label1); 221 __ delayed()->srl (O2, 2, O4); 222 __ ld_ptr (O1, 0, O5); 223 224 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); 225 speculative_load_pclist[count] = __ pc(); 226 switch (type) { 227 case T_FLOAT: __ ldf (FloatRegisterImpl::S, O5, O4, F0); break; 228 case T_DOUBLE: __ ldf (FloatRegisterImpl::D, O5, O4, F0); break; 229 default: ShouldNotReachHere(); 230 } 231 232 __ ld (cnt_addr, O5); 233 __ cmp (O5, G4); 234 __ br (Assembler::notEqual, false, Assembler::pn, label2); 235 __ delayed()->mov (O7, G1); 236 237 __ retl (); 238 __ delayed()-> nop (); 239 240 slowcase_entry_pclist[count++] = __ pc(); 241 __ bind (label1); 242 __ mov (O7, G1); 243 244 address slow_case_addr; 245 switch (type) { 246 case T_FLOAT: slow_case_addr = jni_GetFloatField_addr(); break; 247 case T_DOUBLE: slow_case_addr = jni_GetDoubleField_addr(); break; 248 default: ShouldNotReachHere(); 249 } 250 __ bind (label2); 251 __ call (slow_case_addr, relocInfo::none); 252 __ delayed()->mov (G1, O7); 253 254 __ flush (); 255 256 return fast_entry; 257} 258 259address JNI_FastGetField::generate_fast_get_float_field() { 260 return generate_fast_get_float_field0(T_FLOAT); 261} 262 263address JNI_FastGetField::generate_fast_get_double_field() { 264 return generate_fast_get_float_field0(T_DOUBLE); 265} 266