jniFastGetField_sparc.cpp revision 13005:d73a8d6f9bc1
1/* 2 * Copyright (c) 2004, 2017, 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 "asm/macroAssembler.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 __ andn (O1, JNIHandles::weak_tag_mask, O1); 72 __ ld_ptr (O1, 0, O5); 73 74 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); 75 speculative_load_pclist[count] = __ pc(); 76 switch (type) { 77 case T_BOOLEAN: __ ldub (O5, O4, G3); break; 78 case T_BYTE: __ ldsb (O5, O4, G3); break; 79 case T_CHAR: __ lduh (O5, O4, G3); break; 80 case T_SHORT: __ ldsh (O5, O4, G3); break; 81 case T_INT: __ ld (O5, O4, G3); break; 82 default: ShouldNotReachHere(); 83 } 84 85 __ ld (cnt_addr, O5); 86 __ cmp (O5, G4); 87 __ br (Assembler::notEqual, false, Assembler::pn, label2); 88 __ delayed()->mov (O7, G1); 89 __ retl (); 90 __ delayed()->mov (G3, O0); 91 92 slowcase_entry_pclist[count++] = __ pc(); 93 __ bind (label1); 94 __ mov (O7, G1); 95 96 address slow_case_addr; 97 switch (type) { 98 case T_BOOLEAN: slow_case_addr = jni_GetBooleanField_addr(); break; 99 case T_BYTE: slow_case_addr = jni_GetByteField_addr(); break; 100 case T_CHAR: slow_case_addr = jni_GetCharField_addr(); break; 101 case T_SHORT: slow_case_addr = jni_GetShortField_addr(); break; 102 case T_INT: slow_case_addr = jni_GetIntField_addr(); break; 103 default: ShouldNotReachHere(); 104 } 105 __ bind (label2); 106 __ call (slow_case_addr, relocInfo::none); 107 __ delayed()->mov (G1, O7); 108 109 __ flush (); 110 111 return fast_entry; 112} 113 114address JNI_FastGetField::generate_fast_get_boolean_field() { 115 return generate_fast_get_int_field0(T_BOOLEAN); 116} 117 118address JNI_FastGetField::generate_fast_get_byte_field() { 119 return generate_fast_get_int_field0(T_BYTE); 120} 121 122address JNI_FastGetField::generate_fast_get_char_field() { 123 return generate_fast_get_int_field0(T_CHAR); 124} 125 126address JNI_FastGetField::generate_fast_get_short_field() { 127 return generate_fast_get_int_field0(T_SHORT); 128} 129 130address JNI_FastGetField::generate_fast_get_int_field() { 131 return generate_fast_get_int_field0(T_INT); 132} 133 134address JNI_FastGetField::generate_fast_get_long_field() { 135 const char *name = "jni_fast_GetLongField"; 136 ResourceMark rm; 137 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); 138 CodeBuffer cbuf(blob); 139 MacroAssembler* masm = new MacroAssembler(&cbuf); 140 address fast_entry = __ pc(); 141 142 Label label1, label2; 143 144 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); 145 __ sethi (cnt_addrlit, G3); 146 Address cnt_addr(G3, cnt_addrlit.low10()); 147 __ ld (cnt_addr, G4); 148 __ andcc (G4, 1, G0); 149 __ br (Assembler::notZero, false, Assembler::pn, label1); 150 __ delayed()->srl (O2, 2, O4); 151 __ andn (O1, JNIHandles::weak_tag_mask, O1); 152 __ ld_ptr (O1, 0, O5); 153 __ add (O5, O4, O5); 154 155 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); 156 speculative_load_pclist[count] = __ pc(); 157 __ ldx (O5, 0, O3); 158 159 __ ld (cnt_addr, G1); 160 __ cmp (G1, G4); 161 __ br (Assembler::notEqual, false, Assembler::pn, label2); 162 __ delayed()->mov (O7, G1); 163 164 __ retl (); 165 __ delayed()->mov (O3, O0); 166 167 slowcase_entry_pclist[count++] = __ pc(); 168 169 __ bind (label1); 170 __ mov (O7, G1); 171 172 address slow_case_addr = jni_GetLongField_addr(); 173 __ bind (label2); 174 __ call (slow_case_addr, relocInfo::none); 175 __ delayed()->mov (G1, O7); 176 177 __ flush (); 178 179 return fast_entry; 180} 181 182address JNI_FastGetField::generate_fast_get_float_field0(BasicType type) { 183 const char *name; 184 switch (type) { 185 case T_FLOAT: name = "jni_fast_GetFloatField"; break; 186 case T_DOUBLE: name = "jni_fast_GetDoubleField"; break; 187 default: ShouldNotReachHere(); 188 } 189 ResourceMark rm; 190 BufferBlob* blob = BufferBlob::create(name, BUFFER_SIZE*wordSize); 191 CodeBuffer cbuf(blob); 192 MacroAssembler* masm = new MacroAssembler(&cbuf); 193 address fast_entry = __ pc(); 194 195 Label label1, label2; 196 197 AddressLiteral cnt_addrlit(SafepointSynchronize::safepoint_counter_addr()); 198 __ sethi (cnt_addrlit, O3); 199 Address cnt_addr(O3, cnt_addrlit.low10()); 200 __ ld (cnt_addr, G4); 201 __ andcc (G4, 1, G0); 202 __ br (Assembler::notZero, false, Assembler::pn, label1); 203 __ delayed()->srl (O2, 2, O4); 204 __ andn (O1, JNIHandles::weak_tag_mask, O1); 205 __ ld_ptr (O1, 0, O5); 206 207 assert(count < LIST_CAPACITY, "LIST_CAPACITY too small"); 208 speculative_load_pclist[count] = __ pc(); 209 switch (type) { 210 case T_FLOAT: __ ldf (FloatRegisterImpl::S, O5, O4, F0); break; 211 case T_DOUBLE: __ ldf (FloatRegisterImpl::D, O5, O4, F0); break; 212 default: ShouldNotReachHere(); 213 } 214 215 __ ld (cnt_addr, O5); 216 __ cmp (O5, G4); 217 __ br (Assembler::notEqual, false, Assembler::pn, label2); 218 __ delayed()->mov (O7, G1); 219 220 __ retl (); 221 __ delayed()-> nop (); 222 223 slowcase_entry_pclist[count++] = __ pc(); 224 __ bind (label1); 225 __ mov (O7, G1); 226 227 address slow_case_addr; 228 switch (type) { 229 case T_FLOAT: slow_case_addr = jni_GetFloatField_addr(); break; 230 case T_DOUBLE: slow_case_addr = jni_GetDoubleField_addr(); break; 231 default: ShouldNotReachHere(); 232 } 233 __ bind (label2); 234 __ call (slow_case_addr, relocInfo::none); 235 __ delayed()->mov (G1, O7); 236 237 __ flush (); 238 239 return fast_entry; 240} 241 242address JNI_FastGetField::generate_fast_get_float_field() { 243 return generate_fast_get_float_field0(T_FLOAT); 244} 245 246address JNI_FastGetField::generate_fast_get_double_field() { 247 return generate_fast_get_float_field0(T_DOUBLE); 248} 249