26 #include "interp_masm_sparc.hpp" |
26 #include "interp_masm_sparc.hpp" |
27 #include "interpreter/interpreter.hpp" |
27 #include "interpreter/interpreter.hpp" |
28 #include "interpreter/interpreterRuntime.hpp" |
28 #include "interpreter/interpreterRuntime.hpp" |
29 #include "oops/arrayOop.hpp" |
29 #include "oops/arrayOop.hpp" |
30 #include "oops/markOop.hpp" |
30 #include "oops/markOop.hpp" |
31 #include "oops/methodDataOop.hpp" |
31 #include "oops/methodData.hpp" |
32 #include "oops/methodOop.hpp" |
32 #include "oops/method.hpp" |
33 #include "prims/jvmtiExport.hpp" |
33 #include "prims/jvmtiExport.hpp" |
34 #include "prims/jvmtiRedefineClassesTrace.hpp" |
34 #include "prims/jvmtiRedefineClassesTrace.hpp" |
35 #include "prims/jvmtiThreadState.hpp" |
35 #include "prims/jvmtiThreadState.hpp" |
36 #include "runtime/basicLock.hpp" |
36 #include "runtime/basicLock.hpp" |
37 #include "runtime/biasedLocking.hpp" |
37 #include "runtime/biasedLocking.hpp" |
512 // Reset Lesp. |
512 // Reset Lesp. |
513 sub( Lmonitors, wordSize, Lesp ); |
513 sub( Lmonitors, wordSize, Lesp ); |
514 |
514 |
515 // Reset SP by subtracting more space from Lesp. |
515 // Reset SP by subtracting more space from Lesp. |
516 Label done; |
516 Label done; |
517 verify_oop(Lmethod); |
|
518 assert(G4_scratch != Gframe_size, "Only you can prevent register aliasing!"); |
517 assert(G4_scratch != Gframe_size, "Only you can prevent register aliasing!"); |
519 |
518 |
520 // A native does not need to do this, since its callee does not change SP. |
519 // A native does not need to do this, since its callee does not change SP. |
521 ld(Lmethod, methodOopDesc::access_flags_offset(), Gframe_size); // Load access flags. |
520 ld(Lmethod, Method::access_flags_offset(), Gframe_size); // Load access flags. |
522 btst(JVM_ACC_NATIVE, Gframe_size); |
521 btst(JVM_ACC_NATIVE, Gframe_size); |
523 br(Assembler::notZero, false, Assembler::pt, done); |
522 br(Assembler::notZero, false, Assembler::pt, done); |
524 delayed()->nop(); |
523 delayed()->nop(); |
525 |
524 |
526 // Compute max expression stack+register save area |
525 // Compute max expression stack+register save area |
527 lduh(Lmethod, in_bytes(methodOopDesc::max_stack_offset()), Gframe_size); // Load max stack. |
526 lduh(Lmethod, in_bytes(Method::max_stack_offset()), Gframe_size); // Load max stack. |
528 add( Gframe_size, frame::memory_parameter_word_sp_offset, Gframe_size ); |
527 add( Gframe_size, frame::memory_parameter_word_sp_offset, Gframe_size ); |
529 |
528 |
530 // |
529 // |
531 // now set up a stack frame with the size computed above |
530 // now set up a stack frame with the size computed above |
532 // |
531 // |
608 // If jvmti single stepping is on for a thread we must not call compiled code. |
607 // If jvmti single stepping is on for a thread we must not call compiled code. |
609 void InterpreterMacroAssembler::call_from_interpreter(Register target, Register scratch, Register Rret) { |
608 void InterpreterMacroAssembler::call_from_interpreter(Register target, Register scratch, Register Rret) { |
610 |
609 |
611 // Assume we want to go compiled if available |
610 // Assume we want to go compiled if available |
612 |
611 |
613 ld_ptr(G5_method, in_bytes(methodOopDesc::from_interpreted_offset()), target); |
612 ld_ptr(G5_method, in_bytes(Method::from_interpreted_offset()), target); |
614 |
613 |
615 if (JvmtiExport::can_post_interpreter_events()) { |
614 if (JvmtiExport::can_post_interpreter_events()) { |
616 // JVMTI events, such as single-stepping, are implemented partly by avoiding running |
615 // JVMTI events, such as single-stepping, are implemented partly by avoiding running |
617 // compiled code in threads for which the event is enabled. Check here for |
616 // compiled code in threads for which the event is enabled. Check here for |
618 // interp_only_mode if these events CAN be enabled. |
617 // interp_only_mode if these events CAN be enabled. |
620 Label skip_compiled_code; |
619 Label skip_compiled_code; |
621 |
620 |
622 const Address interp_only(G2_thread, JavaThread::interp_only_mode_offset()); |
621 const Address interp_only(G2_thread, JavaThread::interp_only_mode_offset()); |
623 ld(interp_only, scratch); |
622 ld(interp_only, scratch); |
624 cmp_zero_and_br(Assembler::notZero, scratch, skip_compiled_code, true, Assembler::pn); |
623 cmp_zero_and_br(Assembler::notZero, scratch, skip_compiled_code, true, Assembler::pn); |
625 delayed()->ld_ptr(G5_method, in_bytes(methodOopDesc::interpreter_entry_offset()), target); |
624 delayed()->ld_ptr(G5_method, in_bytes(Method::interpreter_entry_offset()), target); |
626 bind(skip_compiled_code); |
625 bind(skip_compiled_code); |
627 } |
626 } |
628 |
627 |
629 // the i2c_adapters need methodOop in G5_method (right? %%%) |
628 // the i2c_adapters need Method* in G5_method (right? %%%) |
630 // do the call |
629 // do the call |
631 #ifdef ASSERT |
630 #ifdef ASSERT |
632 { |
631 { |
633 Label ok; |
632 Label ok; |
634 br_notnull_short(target, Assembler::pt, ok); |
633 br_notnull_short(target, Assembler::pt, ok); |
723 |
722 |
724 bind(aligned); |
723 bind(aligned); |
725 if (should_set_CC == set_CC) tst(Rdst); |
724 if (should_set_CC == set_CC) tst(Rdst); |
726 } |
725 } |
727 |
726 |
728 |
727 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register temp, Register index, |
729 void InterpreterMacroAssembler::get_cache_index_at_bcp(Register cache, Register tmp, |
|
730 int bcp_offset, size_t index_size) { |
728 int bcp_offset, size_t index_size) { |
731 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
729 assert(bcp_offset > 0, "bcp is still pointing to start of bytecode"); |
732 if (index_size == sizeof(u2)) { |
730 if (index_size == sizeof(u2)) { |
733 get_2_byte_integer_at_bcp(bcp_offset, cache, tmp, Unsigned); |
731 get_2_byte_integer_at_bcp(bcp_offset, temp, index, Unsigned); |
734 } else if (index_size == sizeof(u4)) { |
732 } else if (index_size == sizeof(u4)) { |
735 assert(EnableInvokeDynamic, "giant index used only for JSR 292"); |
733 assert(EnableInvokeDynamic, "giant index used only for JSR 292"); |
736 get_4_byte_integer_at_bcp(bcp_offset, cache, tmp); |
734 get_4_byte_integer_at_bcp(bcp_offset, temp, index); |
737 assert(constantPoolCacheOopDesc::decode_secondary_index(~123) == 123, "else change next line"); |
735 assert(ConstantPool::decode_invokedynamic_index(~123) == 123, "else change next line"); |
738 xor3(tmp, -1, tmp); // convert to plain index |
736 xor3(index, -1, index); // convert to plain index |
739 } else if (index_size == sizeof(u1)) { |
737 } else if (index_size == sizeof(u1)) { |
740 assert(EnableInvokeDynamic, "tiny index used only for JSR 292"); |
738 ldub(Lbcp, bcp_offset, index); |
741 ldub(Lbcp, bcp_offset, tmp); |
|
742 } else { |
739 } else { |
743 ShouldNotReachHere(); |
740 ShouldNotReachHere(); |
744 } |
741 } |
745 } |
742 } |
746 |
743 |
763 Register bytecode, |
760 Register bytecode, |
764 int byte_no, |
761 int byte_no, |
765 int bcp_offset, |
762 int bcp_offset, |
766 size_t index_size) { |
763 size_t index_size) { |
767 get_cache_and_index_at_bcp(cache, temp, bcp_offset, index_size); |
764 get_cache_and_index_at_bcp(cache, temp, bcp_offset, index_size); |
768 ld_ptr(cache, constantPoolCacheOopDesc::base_offset() + ConstantPoolCacheEntry::indices_offset(), bytecode); |
765 ld_ptr(cache, ConstantPoolCache::base_offset() + ConstantPoolCacheEntry::indices_offset(), bytecode); |
769 const int shift_count = (1 + byte_no) * BitsPerByte; |
766 const int shift_count = (1 + byte_no) * BitsPerByte; |
770 assert((byte_no == TemplateTable::f1_byte && shift_count == ConstantPoolCacheEntry::bytecode_1_shift) || |
767 assert((byte_no == TemplateTable::f1_byte && shift_count == ConstantPoolCacheEntry::bytecode_1_shift) || |
771 (byte_no == TemplateTable::f2_byte && shift_count == ConstantPoolCacheEntry::bytecode_2_shift), |
768 (byte_no == TemplateTable::f2_byte && shift_count == ConstantPoolCacheEntry::bytecode_2_shift), |
772 "correct shift count"); |
769 "correct shift count"); |
773 srl(bytecode, shift_count, bytecode); |
770 srl(bytecode, shift_count, bytecode); |
788 } |
785 } |
789 // convert from field index to ConstantPoolCacheEntry index |
786 // convert from field index to ConstantPoolCacheEntry index |
790 // and from word index to byte offset |
787 // and from word index to byte offset |
791 sll(tmp, exact_log2(in_words(ConstantPoolCacheEntry::size()) * BytesPerWord), tmp); |
788 sll(tmp, exact_log2(in_words(ConstantPoolCacheEntry::size()) * BytesPerWord), tmp); |
792 // skip past the header |
789 // skip past the header |
793 add(tmp, in_bytes(constantPoolCacheOopDesc::base_offset()), tmp); |
790 add(tmp, in_bytes(ConstantPoolCache::base_offset()), tmp); |
794 // construct pointer to cache entry |
791 // construct pointer to cache entry |
795 add(LcpoolCache, tmp, cache); |
792 add(LcpoolCache, tmp, cache); |
|
793 } |
|
794 |
|
795 |
|
796 // Load object from cpool->resolved_references(index) |
|
797 void InterpreterMacroAssembler::load_resolved_reference_at_index( |
|
798 Register result, Register index) { |
|
799 assert_different_registers(result, index); |
|
800 assert_not_delayed(); |
|
801 // convert from field index to resolved_references() index and from |
|
802 // word index to byte offset. Since this is a java object, it can be compressed |
|
803 Register tmp = index; // reuse |
|
804 sll(index, LogBytesPerHeapOop, tmp); |
|
805 get_constant_pool(result); |
|
806 // load pointer for resolved_references[] objArray |
|
807 ld_ptr(result, ConstantPool::resolved_references_offset_in_bytes(), result); |
|
808 // JNIHandles::resolve(result) |
|
809 ld_ptr(result, 0, result); |
|
810 // Add in the index |
|
811 add(result, tmp, result); |
|
812 load_heap_oop(result, arrayOopDesc::base_offset_in_bytes(T_OBJECT), result); |
796 } |
813 } |
797 |
814 |
798 |
815 |
799 // Generate a subtype check: branch to ok_is_subtype if sub_klass is |
816 // Generate a subtype check: branch to ok_is_subtype if sub_klass is |
800 // a subtype of super_klass. Blows registers Rsuper_klass, Rsub_klass, tmp1, tmp2. |
817 // a subtype of super_klass. Blows registers Rsuper_klass, Rsub_klass, tmp1, tmp2. |
937 index_check_without_pop(array, index, index_shift, tmp, res); |
954 index_check_without_pop(array, index, index_shift, tmp, res); |
938 } |
955 } |
939 |
956 |
940 |
957 |
941 void InterpreterMacroAssembler::get_const(Register Rdst) { |
958 void InterpreterMacroAssembler::get_const(Register Rdst) { |
942 ld_ptr(Lmethod, in_bytes(methodOopDesc::const_offset()), Rdst); |
959 ld_ptr(Lmethod, in_bytes(Method::const_offset()), Rdst); |
943 } |
960 } |
944 |
961 |
945 |
962 |
946 void InterpreterMacroAssembler::get_constant_pool(Register Rdst) { |
963 void InterpreterMacroAssembler::get_constant_pool(Register Rdst) { |
947 get_const(Rdst); |
964 get_const(Rdst); |
948 ld_ptr(Rdst, in_bytes(constMethodOopDesc::constants_offset()), Rdst); |
965 ld_ptr(Rdst, in_bytes(ConstMethod::constants_offset()), Rdst); |
949 } |
966 } |
950 |
967 |
951 |
968 |
952 void InterpreterMacroAssembler::get_constant_pool_cache(Register Rdst) { |
969 void InterpreterMacroAssembler::get_constant_pool_cache(Register Rdst) { |
953 get_constant_pool(Rdst); |
970 get_constant_pool(Rdst); |
954 ld_ptr(Rdst, constantPoolOopDesc::cache_offset_in_bytes(), Rdst); |
971 ld_ptr(Rdst, ConstantPool::cache_offset_in_bytes(), Rdst); |
955 } |
972 } |
956 |
973 |
957 |
974 |
958 void InterpreterMacroAssembler::get_cpool_and_tags(Register Rcpool, Register Rtags) { |
975 void InterpreterMacroAssembler::get_cpool_and_tags(Register Rcpool, Register Rtags) { |
959 get_constant_pool(Rcpool); |
976 get_constant_pool(Rcpool); |
960 ld_ptr(Rcpool, constantPoolOopDesc::tags_offset_in_bytes(), Rtags); |
977 ld_ptr(Rcpool, ConstantPool::tags_offset_in_bytes(), Rtags); |
961 } |
978 } |
962 |
979 |
963 |
980 |
964 // unlock if synchronized method |
981 // unlock if synchronized method |
965 // |
982 // |
983 JavaThread::do_not_unlock_if_synchronized_offset()); |
1000 JavaThread::do_not_unlock_if_synchronized_offset()); |
984 ldbool(do_not_unlock_if_synchronized, G1_scratch); |
1001 ldbool(do_not_unlock_if_synchronized, G1_scratch); |
985 stbool(G0, do_not_unlock_if_synchronized); // reset the flag |
1002 stbool(G0, do_not_unlock_if_synchronized); // reset the flag |
986 |
1003 |
987 // check if synchronized method |
1004 // check if synchronized method |
988 const Address access_flags(Lmethod, methodOopDesc::access_flags_offset()); |
1005 const Address access_flags(Lmethod, Method::access_flags_offset()); |
989 interp_verify_oop(Otos_i, state, __FILE__, __LINE__); |
1006 interp_verify_oop(Otos_i, state, __FILE__, __LINE__); |
990 push(state); // save tos |
1007 push(state); // save tos |
991 ld(access_flags, G3_scratch); // Load access flags. |
1008 ld(access_flags, G3_scratch); // Load access flags. |
992 btst(JVM_ACC_SYNCHRONIZED, G3_scratch); |
1009 btst(JVM_ACC_SYNCHRONIZED, G3_scratch); |
993 br(zero, false, pt, unlocked); |
1010 br(zero, false, pt, unlocked); |
1119 |
1136 |
1120 // save result (push state before jvmti call and pop it afterwards) and notify jvmti |
1137 // save result (push state before jvmti call and pop it afterwards) and notify jvmti |
1121 notify_method_exit(false, state, NotifyJVMTI); |
1138 notify_method_exit(false, state, NotifyJVMTI); |
1122 |
1139 |
1123 interp_verify_oop(Otos_i, state, __FILE__, __LINE__); |
1140 interp_verify_oop(Otos_i, state, __FILE__, __LINE__); |
1124 verify_oop(Lmethod); |
|
1125 verify_thread(); |
1141 verify_thread(); |
1126 |
1142 |
1127 // return tos |
1143 // return tos |
1128 assert(Otos_l1 == Otos_i, "adjust code below"); |
1144 assert(Otos_l1 == Otos_i, "adjust code below"); |
1129 switch (state) { |
1145 switch (state) { |
1293 } |
1309 } |
1294 } |
1310 } |
1295 |
1311 |
1296 #ifndef CC_INTERP |
1312 #ifndef CC_INTERP |
1297 |
1313 |
1298 // Get the method data pointer from the methodOop and set the |
1314 // Get the method data pointer from the Method* and set the |
1299 // specified register to its value. |
1315 // specified register to its value. |
1300 |
1316 |
1301 void InterpreterMacroAssembler::set_method_data_pointer() { |
1317 void InterpreterMacroAssembler::set_method_data_pointer() { |
1302 assert(ProfileInterpreter, "must be profiling interpreter"); |
1318 assert(ProfileInterpreter, "must be profiling interpreter"); |
1303 Label get_continue; |
1319 Label get_continue; |
1304 |
1320 |
1305 ld_ptr(Lmethod, in_bytes(methodOopDesc::method_data_offset()), ImethodDataPtr); |
1321 ld_ptr(Lmethod, in_bytes(Method::method_data_offset()), ImethodDataPtr); |
1306 test_method_data_pointer(get_continue); |
1322 test_method_data_pointer(get_continue); |
1307 add(ImethodDataPtr, in_bytes(methodDataOopDesc::data_offset()), ImethodDataPtr); |
1323 add(ImethodDataPtr, in_bytes(MethodData::data_offset()), ImethodDataPtr); |
1308 bind(get_continue); |
1324 bind(get_continue); |
1309 } |
1325 } |
1310 |
1326 |
1311 // Set the method data pointer for the current bcp. |
1327 // Set the method data pointer for the current bcp. |
1312 |
1328 |
1313 void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() { |
1329 void InterpreterMacroAssembler::set_method_data_pointer_for_bcp() { |
1314 assert(ProfileInterpreter, "must be profiling interpreter"); |
1330 assert(ProfileInterpreter, "must be profiling interpreter"); |
1315 Label zero_continue; |
1331 Label zero_continue; |
1316 |
1332 |
1317 // Test MDO to avoid the call if it is NULL. |
1333 // Test MDO to avoid the call if it is NULL. |
1318 ld_ptr(Lmethod, in_bytes(methodOopDesc::method_data_offset()), ImethodDataPtr); |
1334 ld_ptr(Lmethod, in_bytes(Method::method_data_offset()), ImethodDataPtr); |
1319 test_method_data_pointer(zero_continue); |
1335 test_method_data_pointer(zero_continue); |
1320 call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), Lmethod, Lbcp); |
1336 call_VM_leaf(noreg, CAST_FROM_FN_PTR(address, InterpreterRuntime::bcp_to_di), Lmethod, Lbcp); |
1321 add(ImethodDataPtr, in_bytes(methodDataOopDesc::data_offset()), ImethodDataPtr); |
1337 add(ImethodDataPtr, in_bytes(MethodData::data_offset()), ImethodDataPtr); |
1322 add(ImethodDataPtr, O0, ImethodDataPtr); |
1338 add(ImethodDataPtr, O0, ImethodDataPtr); |
1323 bind(zero_continue); |
1339 bind(zero_continue); |
1324 } |
1340 } |
1325 |
1341 |
1326 // Test ImethodDataPtr. If it is null, continue at the specified label |
1342 // Test ImethodDataPtr. If it is null, continue at the specified label |
1337 test_method_data_pointer(verify_continue); |
1353 test_method_data_pointer(verify_continue); |
1338 |
1354 |
1339 // If the mdp is valid, it will point to a DataLayout header which is |
1355 // If the mdp is valid, it will point to a DataLayout header which is |
1340 // consistent with the bcp. The converse is highly probable also. |
1356 // consistent with the bcp. The converse is highly probable also. |
1341 lduh(ImethodDataPtr, in_bytes(DataLayout::bci_offset()), G3_scratch); |
1357 lduh(ImethodDataPtr, in_bytes(DataLayout::bci_offset()), G3_scratch); |
1342 ld_ptr(Lmethod, methodOopDesc::const_offset(), O5); |
1358 ld_ptr(Lmethod, Method::const_offset(), O5); |
1343 add(G3_scratch, in_bytes(constMethodOopDesc::codes_offset()), G3_scratch); |
1359 add(G3_scratch, in_bytes(ConstMethod::codes_offset()), G3_scratch); |
1344 add(G3_scratch, O5, G3_scratch); |
1360 add(G3_scratch, O5, G3_scratch); |
1345 cmp(Lbcp, G3_scratch); |
1361 cmp(Lbcp, G3_scratch); |
1346 brx(Assembler::equal, false, Assembler::pt, verify_continue); |
1362 brx(Assembler::equal, false, Assembler::pt, verify_continue); |
1347 |
1363 |
1348 Register temp_reg = O5; |
1364 Register temp_reg = O5; |
2070 #endif /* CC_INTERP */ |
2086 #endif /* CC_INTERP */ |
2071 |
2087 |
2072 void InterpreterMacroAssembler::increment_invocation_counter( Register Rtmp, Register Rtmp2 ) { |
2088 void InterpreterMacroAssembler::increment_invocation_counter( Register Rtmp, Register Rtmp2 ) { |
2073 assert(UseCompiler, "incrementing must be useful"); |
2089 assert(UseCompiler, "incrementing must be useful"); |
2074 #ifdef CC_INTERP |
2090 #ifdef CC_INTERP |
2075 Address inv_counter(G5_method, methodOopDesc::invocation_counter_offset() + |
2091 Address inv_counter(G5_method, Method::invocation_counter_offset() + |
2076 InvocationCounter::counter_offset()); |
2092 InvocationCounter::counter_offset()); |
2077 Address be_counter (G5_method, methodOopDesc::backedge_counter_offset() + |
2093 Address be_counter (G5_method, Method::backedge_counter_offset() + |
2078 InvocationCounter::counter_offset()); |
2094 InvocationCounter::counter_offset()); |
2079 #else |
2095 #else |
2080 Address inv_counter(Lmethod, methodOopDesc::invocation_counter_offset() + |
2096 Address inv_counter(Lmethod, Method::invocation_counter_offset() + |
2081 InvocationCounter::counter_offset()); |
2097 InvocationCounter::counter_offset()); |
2082 Address be_counter (Lmethod, methodOopDesc::backedge_counter_offset() + |
2098 Address be_counter (Lmethod, Method::backedge_counter_offset() + |
2083 InvocationCounter::counter_offset()); |
2099 InvocationCounter::counter_offset()); |
2084 #endif /* CC_INTERP */ |
2100 #endif /* CC_INTERP */ |
2085 int delta = InvocationCounter::count_increment; |
2101 int delta = InvocationCounter::count_increment; |
2086 |
2102 |
2087 // Load each counter in a register |
2103 // Load each counter in a register |
2106 } |
2122 } |
2107 |
2123 |
2108 void InterpreterMacroAssembler::increment_backedge_counter( Register Rtmp, Register Rtmp2 ) { |
2124 void InterpreterMacroAssembler::increment_backedge_counter( Register Rtmp, Register Rtmp2 ) { |
2109 assert(UseCompiler, "incrementing must be useful"); |
2125 assert(UseCompiler, "incrementing must be useful"); |
2110 #ifdef CC_INTERP |
2126 #ifdef CC_INTERP |
2111 Address be_counter (G5_method, methodOopDesc::backedge_counter_offset() + |
2127 Address be_counter (G5_method, Method::backedge_counter_offset() + |
2112 InvocationCounter::counter_offset()); |
2128 InvocationCounter::counter_offset()); |
2113 Address inv_counter(G5_method, methodOopDesc::invocation_counter_offset() + |
2129 Address inv_counter(G5_method, Method::invocation_counter_offset() + |
2114 InvocationCounter::counter_offset()); |
2130 InvocationCounter::counter_offset()); |
2115 #else |
2131 #else |
2116 Address be_counter (Lmethod, methodOopDesc::backedge_counter_offset() + |
2132 Address be_counter (Lmethod, Method::backedge_counter_offset() + |
2117 InvocationCounter::counter_offset()); |
2133 InvocationCounter::counter_offset()); |
2118 Address inv_counter(Lmethod, methodOopDesc::invocation_counter_offset() + |
2134 Address inv_counter(Lmethod, Method::invocation_counter_offset() + |
2119 InvocationCounter::counter_offset()); |
2135 InvocationCounter::counter_offset()); |
2120 #endif /* CC_INTERP */ |
2136 #endif /* CC_INTERP */ |
2121 int delta = InvocationCounter::count_increment; |
2137 int delta = InvocationCounter::count_increment; |
2122 // Load each counter in a register |
2138 // Load each counter in a register |
2123 ld( be_counter, Rtmp ); |
2139 ld( be_counter, Rtmp ); |
2150 AddressLiteral limit(&InvocationCounter::InterpreterBackwardBranchLimit); |
2166 AddressLiteral limit(&InvocationCounter::InterpreterBackwardBranchLimit); |
2151 load_contents(limit, Rtmp); |
2167 load_contents(limit, Rtmp); |
2152 cmp_and_br_short(backedge_count, Rtmp, Assembler::lessUnsigned, Assembler::pt, did_not_overflow); |
2168 cmp_and_br_short(backedge_count, Rtmp, Assembler::lessUnsigned, Assembler::pt, did_not_overflow); |
2153 |
2169 |
2154 // When ProfileInterpreter is on, the backedge_count comes from the |
2170 // When ProfileInterpreter is on, the backedge_count comes from the |
2155 // methodDataOop, which value does not get reset on the call to |
2171 // MethodData*, which value does not get reset on the call to |
2156 // frequency_counter_overflow(). To avoid excessive calls to the overflow |
2172 // frequency_counter_overflow(). To avoid excessive calls to the overflow |
2157 // routine while the method is being compiled, add a second test to make sure |
2173 // routine while the method is being compiled, add a second test to make sure |
2158 // the overflow function is called only once every overflow_frequency. |
2174 // the overflow function is called only once every overflow_frequency. |
2159 if (ProfileInterpreter) { |
2175 if (ProfileInterpreter) { |
2160 const int overflow_frequency = 1024; |
2176 const int overflow_frequency = 1024; |
2210 if (state == atos) { MacroAssembler::_verify_oop(reg, "broken oop ", file, line); } |
2226 if (state == atos) { MacroAssembler::_verify_oop(reg, "broken oop ", file, line); } |
2211 } |
2227 } |
2212 |
2228 |
2213 |
2229 |
2214 // local helper function for the verify_oop_or_return_address macro |
2230 // local helper function for the verify_oop_or_return_address macro |
2215 static bool verify_return_address(methodOopDesc* m, int bci) { |
2231 static bool verify_return_address(Method* m, int bci) { |
2216 #ifndef PRODUCT |
2232 #ifndef PRODUCT |
2217 address pc = (address)(m->constMethod()) |
2233 address pc = (address)(m->constMethod()) |
2218 + in_bytes(constMethodOopDesc::codes_offset()) + bci; |
2234 + in_bytes(ConstMethod::codes_offset()) + bci; |
2219 // assume it is a valid return address if it is inside m and is preceded by a jsr |
2235 // assume it is a valid return address if it is inside m and is preceded by a jsr |
2220 if (!m->contains(pc)) return false; |
2236 if (!m->contains(pc)) return false; |
2221 address jsr_pc; |
2237 address jsr_pc; |
2222 jsr_pc = pc - Bytecodes::length_for(Bytecodes::_jsr); |
2238 jsr_pc = pc - Bytecodes::length_for(Bytecodes::_jsr); |
2223 if (*jsr_pc == Bytecodes::_jsr && jsr_pc >= m->code_base()) return true; |
2239 if (*jsr_pc == Bytecodes::_jsr && jsr_pc >= m->code_base()) return true; |