| /* |
| * Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_CI_CIMETHODDATA_HPP |
| #define SHARE_VM_CI_CIMETHODDATA_HPP |
| |
| #include "ci/ciClassList.hpp" |
| #include "ci/ciKlass.hpp" |
| #include "ci/ciObject.hpp" |
| #include "ci/ciUtilities.hpp" |
| #include "oops/methodData.hpp" |
| #include "oops/oop.hpp" |
| #include "runtime/deoptimization.hpp" |
| |
| class ciBitData; |
| class ciCounterData; |
| class ciJumpData; |
| class ciReceiverTypeData; |
| class ciRetData; |
| class ciBranchData; |
| class ciArrayData; |
| class ciMultiBranchData; |
| class ciArgInfoData; |
| class ciCallTypeData; |
| class ciVirtualCallTypeData; |
| class ciParametersTypeData; |
| class ciSpeculativeTrapData; |
| |
| typedef ProfileData ciProfileData; |
| |
| class ciBitData : public BitData { |
| public: |
| ciBitData(DataLayout* layout) : BitData(layout) {}; |
| }; |
| |
| class ciCounterData : public CounterData { |
| public: |
| ciCounterData(DataLayout* layout) : CounterData(layout) {}; |
| }; |
| |
| class ciJumpData : public JumpData { |
| public: |
| ciJumpData(DataLayout* layout) : JumpData(layout) {}; |
| }; |
| |
| class ciTypeEntries { |
| protected: |
| static intptr_t translate_klass(intptr_t k) { |
| Klass* v = TypeEntries::valid_klass(k); |
| if (v != NULL) { |
| ciKlass* klass = CURRENT_ENV->get_klass(v); |
| CURRENT_ENV->ensure_metadata_alive(klass); |
| return with_status(klass, k); |
| } |
| return with_status(NULL, k); |
| } |
| |
| public: |
| static ciKlass* valid_ciklass(intptr_t k) { |
| if (!TypeEntries::is_type_none(k) && |
| !TypeEntries::is_type_unknown(k)) { |
| ciKlass* res = (ciKlass*)TypeEntries::klass_part(k); |
| assert(res != NULL, "invalid"); |
| return res; |
| } else { |
| return NULL; |
| } |
| } |
| |
| static ProfilePtrKind ptr_kind(intptr_t v) { |
| bool maybe_null = TypeEntries::was_null_seen(v); |
| if (!maybe_null) { |
| return ProfileNeverNull; |
| } else if (TypeEntries::is_type_none(v)) { |
| return ProfileAlwaysNull; |
| } else { |
| return ProfileMaybeNull; |
| } |
| } |
| |
| static intptr_t with_status(ciKlass* k, intptr_t in) { |
| return TypeEntries::with_status((intptr_t)k, in); |
| } |
| |
| #ifndef PRODUCT |
| static void print_ciklass(outputStream* st, intptr_t k); |
| #endif |
| }; |
| |
| class ciTypeStackSlotEntries : public TypeStackSlotEntries, ciTypeEntries { |
| public: |
| void translate_type_data_from(const TypeStackSlotEntries* args); |
| |
| ciKlass* valid_type(int i) const { |
| return valid_ciklass(type(i)); |
| } |
| |
| ProfilePtrKind ptr_kind(int i) const { |
| return ciTypeEntries::ptr_kind(type(i)); |
| } |
| |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st) const; |
| #endif |
| }; |
| |
| class ciReturnTypeEntry : public ReturnTypeEntry, ciTypeEntries { |
| public: |
| void translate_type_data_from(const ReturnTypeEntry* ret); |
| |
| ciKlass* valid_type() const { |
| return valid_ciklass(type()); |
| } |
| |
| ProfilePtrKind ptr_kind() const { |
| return ciTypeEntries::ptr_kind(type()); |
| } |
| |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st) const; |
| #endif |
| }; |
| |
| class ciCallTypeData : public CallTypeData { |
| public: |
| ciCallTypeData(DataLayout* layout) : CallTypeData(layout) {} |
| |
| ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)CallTypeData::args(); } |
| ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)CallTypeData::ret(); } |
| |
| void translate_from(const ProfileData* data) { |
| if (has_arguments()) { |
| args()->translate_type_data_from(data->as_CallTypeData()->args()); |
| } |
| if (has_return()) { |
| ret()->translate_type_data_from(data->as_CallTypeData()->ret()); |
| } |
| } |
| |
| intptr_t argument_type(int i) const { |
| assert(has_arguments(), "no arg type profiling data"); |
| return args()->type(i); |
| } |
| |
| ciKlass* valid_argument_type(int i) const { |
| assert(has_arguments(), "no arg type profiling data"); |
| return args()->valid_type(i); |
| } |
| |
| intptr_t return_type() const { |
| assert(has_return(), "no ret type profiling data"); |
| return ret()->type(); |
| } |
| |
| ciKlass* valid_return_type() const { |
| assert(has_return(), "no ret type profiling data"); |
| return ret()->valid_type(); |
| } |
| |
| ProfilePtrKind argument_ptr_kind(int i) const { |
| return args()->ptr_kind(i); |
| } |
| |
| ProfilePtrKind return_ptr_kind() const { |
| return ret()->ptr_kind(); |
| } |
| |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st, const char* extra = NULL) const; |
| #endif |
| }; |
| |
| class ciReceiverTypeData : public ReceiverTypeData { |
| public: |
| ciReceiverTypeData(DataLayout* layout) : ReceiverTypeData(layout) {}; |
| |
| void set_receiver(uint row, ciKlass* recv) { |
| assert((uint)row < row_limit(), "oob"); |
| set_intptr_at(receiver0_offset + row * receiver_type_row_cell_count, |
| (intptr_t) recv); |
| } |
| |
| ciKlass* receiver(uint row) const { |
| assert((uint)row < row_limit(), "oob"); |
| ciKlass* recv = (ciKlass*)intptr_at(receiver0_offset + row * receiver_type_row_cell_count); |
| assert(recv == NULL || recv->is_klass(), "wrong type"); |
| return recv; |
| } |
| |
| // Copy & translate from oop based ReceiverTypeData |
| virtual void translate_from(const ProfileData* data) { |
| translate_receiver_data_from(data); |
| } |
| void translate_receiver_data_from(const ProfileData* data); |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st, const char* extra = NULL) const; |
| void print_receiver_data_on(outputStream* st) const; |
| #endif |
| }; |
| |
| class ciVirtualCallData : public VirtualCallData { |
| // Fake multiple inheritance... It's a ciReceiverTypeData also. |
| ciReceiverTypeData* rtd_super() const { return (ciReceiverTypeData*) this; } |
| |
| public: |
| ciVirtualCallData(DataLayout* layout) : VirtualCallData(layout) {}; |
| |
| void set_receiver(uint row, ciKlass* recv) { |
| rtd_super()->set_receiver(row, recv); |
| } |
| |
| ciKlass* receiver(uint row) { |
| return rtd_super()->receiver(row); |
| } |
| |
| // Copy & translate from oop based VirtualCallData |
| virtual void translate_from(const ProfileData* data) { |
| rtd_super()->translate_receiver_data_from(data); |
| } |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st, const char* extra = NULL) const; |
| #endif |
| }; |
| |
| class ciVirtualCallTypeData : public VirtualCallTypeData { |
| private: |
| // Fake multiple inheritance... It's a ciReceiverTypeData also. |
| ciReceiverTypeData* rtd_super() const { return (ciReceiverTypeData*) this; } |
| public: |
| ciVirtualCallTypeData(DataLayout* layout) : VirtualCallTypeData(layout) {} |
| |
| void set_receiver(uint row, ciKlass* recv) { |
| rtd_super()->set_receiver(row, recv); |
| } |
| |
| ciKlass* receiver(uint row) const { |
| return rtd_super()->receiver(row); |
| } |
| |
| ciTypeStackSlotEntries* args() const { return (ciTypeStackSlotEntries*)VirtualCallTypeData::args(); } |
| ciReturnTypeEntry* ret() const { return (ciReturnTypeEntry*)VirtualCallTypeData::ret(); } |
| |
| // Copy & translate from oop based VirtualCallData |
| virtual void translate_from(const ProfileData* data) { |
| rtd_super()->translate_receiver_data_from(data); |
| if (has_arguments()) { |
| args()->translate_type_data_from(data->as_VirtualCallTypeData()->args()); |
| } |
| if (has_return()) { |
| ret()->translate_type_data_from(data->as_VirtualCallTypeData()->ret()); |
| } |
| } |
| |
| intptr_t argument_type(int i) const { |
| assert(has_arguments(), "no arg type profiling data"); |
| return args()->type(i); |
| } |
| |
| ciKlass* valid_argument_type(int i) const { |
| assert(has_arguments(), "no arg type profiling data"); |
| return args()->valid_type(i); |
| } |
| |
| intptr_t return_type() const { |
| assert(has_return(), "no ret type profiling data"); |
| return ret()->type(); |
| } |
| |
| ciKlass* valid_return_type() const { |
| assert(has_return(), "no ret type profiling data"); |
| return ret()->valid_type(); |
| } |
| |
| ProfilePtrKind argument_ptr_kind(int i) const { |
| return args()->ptr_kind(i); |
| } |
| |
| ProfilePtrKind return_ptr_kind() const { |
| return ret()->ptr_kind(); |
| } |
| |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st, const char* extra = NULL) const; |
| #endif |
| }; |
| |
| |
| class ciRetData : public RetData { |
| public: |
| ciRetData(DataLayout* layout) : RetData(layout) {}; |
| }; |
| |
| class ciBranchData : public BranchData { |
| public: |
| ciBranchData(DataLayout* layout) : BranchData(layout) {}; |
| }; |
| |
| class ciArrayData : public ArrayData { |
| public: |
| ciArrayData(DataLayout* layout) : ArrayData(layout) {}; |
| }; |
| |
| class ciMultiBranchData : public MultiBranchData { |
| public: |
| ciMultiBranchData(DataLayout* layout) : MultiBranchData(layout) {}; |
| }; |
| |
| class ciArgInfoData : public ArgInfoData { |
| public: |
| ciArgInfoData(DataLayout* layout) : ArgInfoData(layout) {}; |
| }; |
| |
| class ciParametersTypeData : public ParametersTypeData { |
| public: |
| ciParametersTypeData(DataLayout* layout) : ParametersTypeData(layout) {} |
| |
| virtual void translate_from(const ProfileData* data) { |
| parameters()->translate_type_data_from(data->as_ParametersTypeData()->parameters()); |
| } |
| |
| ciTypeStackSlotEntries* parameters() const { return (ciTypeStackSlotEntries*)ParametersTypeData::parameters(); } |
| |
| ciKlass* valid_parameter_type(int i) const { |
| return parameters()->valid_type(i); |
| } |
| |
| ProfilePtrKind parameter_ptr_kind(int i) const { |
| return parameters()->ptr_kind(i); |
| } |
| |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st, const char* extra = NULL) const; |
| #endif |
| }; |
| |
| class ciSpeculativeTrapData : public SpeculativeTrapData { |
| public: |
| ciSpeculativeTrapData(DataLayout* layout) : SpeculativeTrapData(layout) {} |
| |
| virtual void translate_from(const ProfileData* data); |
| |
| ciMethod* method() const { |
| return (ciMethod*)intptr_at(speculative_trap_method); |
| } |
| |
| void set_method(ciMethod* m) { |
| set_intptr_at(speculative_trap_method, (intptr_t)m); |
| } |
| |
| #ifndef PRODUCT |
| void print_data_on(outputStream* st, const char* extra = NULL) const; |
| #endif |
| }; |
| |
| // ciMethodData |
| // |
| // This class represents a MethodData* in the HotSpot virtual |
| // machine. |
| |
| class ciMethodData : public ciMetadata { |
| CI_PACKAGE_ACCESS |
| friend class ciReplay; |
| |
| private: |
| // Size in bytes |
| int _data_size; |
| int _extra_data_size; |
| |
| // Data entries |
| intptr_t* _data; |
| |
| // Cached hint for data_before() |
| int _hint_di; |
| |
| // Is data attached? And is it mature? |
| enum { empty_state, immature_state, mature_state }; |
| u_char _state; |
| |
| // Set this true if empty extra_data slots are ever witnessed. |
| u_char _saw_free_extra_data; |
| |
| // Support for interprocedural escape analysis |
| intx _eflags; // flags on escape information |
| intx _arg_local; // bit set of non-escaping arguments |
| intx _arg_stack; // bit set of stack-allocatable arguments |
| intx _arg_returned; // bit set of returned arguments |
| |
| // Maturity of the oop when the snapshot is taken. |
| int _current_mileage; |
| |
| // These counters hold the age of MDO in tiered. In tiered we can have the same method |
| // running at different compilation levels concurrently. So, in order to precisely measure |
| // its maturity we need separate counters. |
| int _invocation_counter; |
| int _backedge_counter; |
| |
| // Coherent snapshot of original header. |
| MethodData _orig; |
| |
| // Area dedicated to parameters. NULL if no parameter profiling for |
| // this method. |
| DataLayout* _parameters; |
| int parameters_size() const { |
| return _parameters == NULL ? 0 : parameters_type_data()->size_in_bytes(); |
| } |
| |
| ciMethodData(MethodData* md); |
| ciMethodData(); |
| |
| // Accessors |
| int data_size() const { return _data_size; } |
| int extra_data_size() const { return _extra_data_size; } |
| intptr_t * data() const { return _data; } |
| |
| MethodData* get_MethodData() const { |
| return (MethodData*)_metadata; |
| } |
| |
| const char* type_string() { return "ciMethodData"; } |
| |
| void print_impl(outputStream* st); |
| |
| DataLayout* data_layout_at(int data_index) const { |
| assert(data_index % sizeof(intptr_t) == 0, "unaligned"); |
| return (DataLayout*) (((address)_data) + data_index); |
| } |
| |
| bool out_of_bounds(int data_index) { |
| return data_index >= data_size(); |
| } |
| |
| // hint accessors |
| int hint_di() const { return _hint_di; } |
| void set_hint_di(int di) { |
| assert(!out_of_bounds(di), "hint_di out of bounds"); |
| _hint_di = di; |
| } |
| ciProfileData* data_before(int bci) { |
| // avoid SEGV on this edge case |
| if (data_size() == 0) |
| return NULL; |
| int hint = hint_di(); |
| if (data_layout_at(hint)->bci() <= bci) |
| return data_at(hint); |
| return first_data(); |
| } |
| |
| |
| // What is the index of the first data entry? |
| int first_di() { return 0; } |
| |
| ciArgInfoData *arg_info() const; |
| |
| address data_base() const { |
| return (address) _data; |
| } |
| |
| void load_extra_data(); |
| ciProfileData* bci_to_extra_data(int bci, ciMethod* m, bool& two_free_slots); |
| |
| void dump_replay_data_type_helper(outputStream* out, int round, int& count, ProfileData* pdata, ByteSize offset, ciKlass* k); |
| template<class T> void dump_replay_data_call_type_helper(outputStream* out, int round, int& count, T* call_type_data); |
| template<class T> void dump_replay_data_receiver_type_helper(outputStream* out, int round, int& count, T* call_type_data); |
| void dump_replay_data_extra_data_helper(outputStream* out, int round, int& count); |
| |
| public: |
| bool is_method_data() const { return true; } |
| |
| bool is_empty() { return _state == empty_state; } |
| bool is_mature() { return _state == mature_state; } |
| |
| int creation_mileage() { return _orig.creation_mileage(); } |
| int current_mileage() { return _current_mileage; } |
| |
| int invocation_count() { return _invocation_counter; } |
| int backedge_count() { return _backedge_counter; } |
| |
| #if INCLUDE_RTM_OPT |
| // return cached value |
| int rtm_state() { |
| if (is_empty()) { |
| return NoRTM; |
| } else { |
| return get_MethodData()->rtm_state(); |
| } |
| } |
| #endif |
| |
| // Transfer information about the method to MethodData*. |
| // would_profile means we would like to profile this method, |
| // meaning it's not trivial. |
| void set_would_profile(bool p); |
| // Also set the numer of loops and blocks in the method. |
| // Again, this is used to determine if a method is trivial. |
| void set_compilation_stats(short loops, short blocks); |
| // If the compiler finds a profiled type that is known statically |
| // for sure, set it in the MethodData |
| void set_argument_type(int bci, int i, ciKlass* k); |
| void set_parameter_type(int i, ciKlass* k); |
| void set_return_type(int bci, ciKlass* k); |
| |
| void load_data(); |
| |
| // Convert a dp (data pointer) to a di (data index). |
| int dp_to_di(address dp) { |
| return dp - ((address)_data); |
| } |
| |
| // Get the data at an arbitrary (sort of) data index. |
| ciProfileData* data_at(int data_index); |
| |
| // Walk through the data in order. |
| ciProfileData* first_data() { return data_at(first_di()); } |
| ciProfileData* next_data(ciProfileData* current); |
| bool is_valid(ciProfileData* current) { return current != NULL; } |
| |
| DataLayout* extra_data_base() const { return data_layout_at(data_size()); } |
| DataLayout* args_data_limit() const { return data_layout_at(data_size() + extra_data_size() - |
| parameters_size()); } |
| |
| // Get the data at an arbitrary bci, or NULL if there is none. If m |
| // is not NULL look for a SpeculativeTrapData if any first. |
| ciProfileData* bci_to_data(int bci, ciMethod* m = NULL); |
| |
| uint overflow_trap_count() const { |
| return _orig.overflow_trap_count(); |
| } |
| uint overflow_recompile_count() const { |
| return _orig.overflow_recompile_count(); |
| } |
| uint decompile_count() const { |
| return _orig.decompile_count(); |
| } |
| uint trap_count(int reason) const { |
| return _orig.trap_count(reason); |
| } |
| uint trap_reason_limit() const { return _orig.trap_reason_limit(); } |
| uint trap_count_limit() const { return _orig.trap_count_limit(); } |
| |
| // Helpful query functions that decode trap_state. |
| int has_trap_at(ciProfileData* data, int reason); |
| int has_trap_at(int bci, ciMethod* m, int reason) { |
| assert((m != NULL) == Deoptimization::reason_is_speculate(reason), "inconsistent method/reason"); |
| return has_trap_at(bci_to_data(bci, m), reason); |
| } |
| int trap_recompiled_at(ciProfileData* data); |
| int trap_recompiled_at(int bci, ciMethod* m) { |
| return trap_recompiled_at(bci_to_data(bci, m)); |
| } |
| |
| void clear_escape_info(); |
| bool has_escape_info(); |
| void update_escape_info(); |
| |
| void set_eflag(MethodData::EscapeFlag f); |
| void clear_eflag(MethodData::EscapeFlag f); |
| bool eflag_set(MethodData::EscapeFlag f) const; |
| |
| void set_arg_local(int i); |
| void set_arg_stack(int i); |
| void set_arg_returned(int i); |
| void set_arg_modified(int arg, uint val); |
| |
| bool is_arg_local(int i) const; |
| bool is_arg_stack(int i) const; |
| bool is_arg_returned(int i) const; |
| uint arg_modified(int arg) const; |
| |
| ciParametersTypeData* parameters_type_data() const { |
| return _parameters != NULL ? new ciParametersTypeData(_parameters) : NULL; |
| } |
| |
| // Code generation helper |
| ByteSize offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data); |
| int byte_offset_of_slot(ciProfileData* data, ByteSize slot_offset_in_data) { return in_bytes(offset_of_slot(data, slot_offset_in_data)); } |
| |
| #ifndef PRODUCT |
| // printing support for method data |
| void print(); |
| void print_data_on(outputStream* st); |
| #endif |
| void dump_replay_data(outputStream* out); |
| }; |
| |
| #endif // SHARE_VM_CI_CIMETHODDATA_HPP |