vm (original) (raw)

1147 __ ld_ptr( constMethod, RconstMethod ); 1148 __ lduh( size_of_locals, O2 ); 1149 __ lduh( size_of_parameters, O1 ); 1150 __ sll( O2, LogBytesPerWord, O2); 1151 __ sll( O1, LogBytesPerWord, O1 ); 1152 __ ld_ptr(XXX_STATE(_locals), L2_scratch); 1153 __ sub( L2_scratch, O2, O2 ); 1154 __ sub( L2_scratch, O1, O1 ); 1155 1156 __ bind( clear_loop ); 1157 __ inc( O2, wordSize ); 1158 1159 __ cmp( O2, O1 ); 1160 __ br( Assembler::lessEqualUnsigned, true, Assembler::pt, clear_loop ); 1161 __ delayed()->st_ptr( init_value, O2, 0 ); 1162 } 1163 } 1164 } 1165 // Find preallocated monitor and lock method (C++ interpreter) 1166 // 1167 void InterpreterGenerator::lock_method(void) { 1168 // Lock the current method. 1169 // Destroys registers L2_scratch, L3_scratch, O0 1170 // 1171 // Find everything relative to Lstate 1172 1173 #ifdef ASSERT 1174 __ ld_ptr(STATE(_method), L2_scratch); 1175 __ ld(L2_scratch, in_bytes(Method::access_flags_offset()), O0); 1176 1177 { Label ok; 1178 __ btst(JVM_ACC_SYNCHRONIZED, O0); 1179 __ br( Assembler::notZero, false, Assembler::pt, ok); 1180 __ delayed()->nop(); 1181 __ stop("method doesn't need synchronization"); 1182 __ bind(ok); 1183 } 1184 #endif // ASSERT 1185 1186 // monitor is already allocated at stack base 1187 // and the lockee is already present

1147 __ ld_ptr( constMethod, RconstMethod ); 1148 __ lduh( size_of_locals, O2 ); 1149 __ lduh( size_of_parameters, O1 ); 1150 __ sll( O2, LogBytesPerWord, O2); 1151 __ sll( O1, LogBytesPerWord, O1 ); 1152 __ ld_ptr(XXX_STATE(_locals), L2_scratch); 1153 __ sub( L2_scratch, O2, O2 ); 1154 __ sub( L2_scratch, O1, O1 ); 1155 1156 __ bind( clear_loop ); 1157 __ inc( O2, wordSize ); 1158 1159 __ cmp( O2, O1 ); 1160 __ br( Assembler::lessEqualUnsigned, true, Assembler::pt, clear_loop ); 1161 __ delayed()->st_ptr( init_value, O2, 0 ); 1162 } 1163 } 1164 } 1165 // Find preallocated monitor and lock method (C++ interpreter) 1166 // 1167 void InterpreterGenerator::lock_method() { 1168 // Lock the current method. 1169 // Destroys registers L2_scratch, L3_scratch, O0 1170 // 1171 // Find everything relative to Lstate 1172 1173 #ifdef ASSERT 1174 __ ld_ptr(STATE(_method), L2_scratch); 1175 __ ld(L2_scratch, in_bytes(Method::access_flags_offset()), O0); 1176 1177 { Label ok; 1178 __ btst(JVM_ACC_SYNCHRONIZED, O0); 1179 __ br( Assembler::notZero, false, Assembler::pt, ok); 1180 __ delayed()->nop(); 1181 __ stop("method doesn't need synchronization"); 1182 __ bind(ok); 1183 } 1184 #endif // ASSERT 1185 1186 // monitor is already allocated at stack base 1187 // and the lockee is already present