compiler/optimizing/suspend_check_test.cc \
compiler/utils/arena_allocator_test.cc \
compiler/utils/dedupe_set_test.cc \
+ compiler/utils/intrusive_forward_list_test.cc \
compiler/utils/swap_space_test.cc \
compiler/utils/test_dex_file_builder_test.cc \
GetGraph()->GetArena()->Adapter(kArenaAllocBoundsCheckElimination));
ArenaVector<HBoundsCheck*> standby(
GetGraph()->GetArena()->Adapter(kArenaAllocBoundsCheckElimination));
- for (HUseIterator<HInstruction*> it2(array_length->GetUses()); !it2.Done(); it2.Advance()) {
+ for (const HUseListNode<HInstruction*>& use : array_length->GetUses()) {
// Another bounds check in same or dominated block?
- HInstruction* user = it2.Current()->GetUser();
+ HInstruction* user = use.GetUser();
HBasicBlock* other_block = user->GetBlock();
if (user->IsBoundsCheck() && block->Dominates(other_block)) {
HBoundsCheck* other_bounds_check = user->AsBoundsCheck();
Primitive::Type type = instruction->GetType();
HPhi* phi = nullptr;
// Scan all uses of an instruction and replace each later use with a phi node.
- for (HUseIterator<HInstruction*> it2(instruction->GetUses());
- !it2.Done();
- it2.Advance()) {
- HInstruction* user = it2.Current()->GetUser();
+ const HUseList<HInstruction*>& uses = instruction->GetUses();
+ for (auto it2 = uses.begin(), end2 = uses.end(); it2 != end2; /* ++it2 below */) {
+ HInstruction* user = it2->GetUser();
+ size_t index = it2->GetIndex();
+ // Increment `it2` now because `*it2` may disappear thanks to user->ReplaceInput().
+ ++it2;
if (user->GetBlock() != true_block) {
if (phi == nullptr) {
phi = NewPhi(new_preheader, instruction, type);
}
- user->ReplaceInput(phi, it2.Current()->GetIndex());
+ user->ReplaceInput(phi, index); // Removes the use node from the list.
}
}
// Scan all environment uses of an instruction and replace each later use with a phi node.
- for (HUseIterator<HEnvironment*> it2(instruction->GetEnvUses());
- !it2.Done();
- it2.Advance()) {
- HEnvironment* user = it2.Current()->GetUser();
+ const HUseList<HEnvironment*>& env_uses = instruction->GetEnvUses();
+ for (auto it2 = env_uses.begin(), end2 = env_uses.end(); it2 != end2; /* ++it2 below */) {
+ HEnvironment* user = it2->GetUser();
+ size_t index = it2->GetIndex();
+ // Increment `it2` now because `*it2` may disappear thanks to user->RemoveAsUserOfInput().
+ ++it2;
if (user->GetHolder()->GetBlock() != true_block) {
if (phi == nullptr) {
phi = NewPhi(new_preheader, instruction, type);
}
- user->RemoveAsUserOfInput(it2.Current()->GetIndex());
- user->SetRawEnvAt(it2.Current()->GetIndex(), phi);
- phi->AddEnvUseAt(user, it2.Current()->GetIndex());
+ user->RemoveAsUserOfInput(index);
+ user->SetRawEnvAt(index, phi);
+ phi->AddEnvUseAt(user, index);
}
}
}
// For single uses we let VIXL handle the constant generation since it will
// use registers that are not managed by the register allocator (wip0, wip1).
- if (constant->GetUses().HasOnlyOneUse()) {
+ if (constant->GetUses().HasExactlyOneElement()) {
return true;
}
// Ensure the uses of `instruction` are defined in a block of the graph,
// and the entry in the use list is consistent.
- for (HUseIterator<HInstruction*> use_it(instruction->GetUses());
- !use_it.Done(); use_it.Advance()) {
- HInstruction* use = use_it.Current()->GetUser();
- const HInstructionList& list = use->IsPhi()
- ? use->GetBlock()->GetPhis()
- : use->GetBlock()->GetInstructions();
- if (!list.Contains(use)) {
+ for (const HUseListNode<HInstruction*>& use : instruction->GetUses()) {
+ HInstruction* user = use.GetUser();
+ const HInstructionList& list = user->IsPhi()
+ ? user->GetBlock()->GetPhis()
+ : user->GetBlock()->GetInstructions();
+ if (!list.Contains(user)) {
AddError(StringPrintf("User %s:%d of instruction %d is not defined "
"in a basic block of the control-flow graph.",
- use->DebugName(),
- use->GetId(),
+ user->DebugName(),
+ user->GetId(),
instruction->GetId()));
}
- size_t use_index = use_it.Current()->GetIndex();
- if ((use_index >= use->InputCount()) || (use->InputAt(use_index) != instruction)) {
+ size_t use_index = use.GetIndex();
+ if ((use_index >= user->InputCount()) || (user->InputAt(use_index) != instruction)) {
AddError(StringPrintf("User %s:%d of instruction %s:%d has a wrong "
"UseListNode index.",
- use->DebugName(),
- use->GetId(),
+ user->DebugName(),
+ user->GetId(),
instruction->DebugName(),
instruction->GetId()));
}
}
// Ensure the environment uses entries are consistent.
- for (HUseIterator<HEnvironment*> use_it(instruction->GetEnvUses());
- !use_it.Done(); use_it.Advance()) {
- HEnvironment* use = use_it.Current()->GetUser();
- size_t use_index = use_it.Current()->GetIndex();
- if ((use_index >= use->Size()) || (use->GetInstructionAt(use_index) != instruction)) {
+ for (const HUseListNode<HEnvironment*>& use : instruction->GetEnvUses()) {
+ HEnvironment* user = use.GetUser();
+ size_t use_index = use.GetIndex();
+ if ((use_index >= user->Size()) || (user->GetInstructionAt(use_index) != instruction)) {
AddError(StringPrintf("Environment user of %s:%d has a wrong "
"UseListNode index.",
instruction->DebugName(),
for (size_t i = 0, e = instruction->InputCount(); i < e; ++i) {
HUserRecord<HInstruction*> input_record = instruction->InputRecordAt(i);
HInstruction* input = input_record.GetInstruction();
- HUseListNode<HInstruction*>* use_node = input_record.GetUseNode();
- size_t use_index = use_node->GetIndex();
- if ((use_node == nullptr)
- || !input->GetUses().Contains(use_node)
- || (use_index >= e)
- || (use_index != i)) {
- AddError(StringPrintf("Instruction %s:%d has an invalid pointer to use entry "
+ if ((input_record.GetBeforeUseNode() == input->GetUses().end()) ||
+ (input_record.GetUseNode() == input->GetUses().end()) ||
+ !input->GetUses().ContainsNode(*input_record.GetUseNode()) ||
+ (input_record.GetUseNode()->GetIndex() != i)) {
+ AddError(StringPrintf("Instruction %s:%d has an invalid iterator before use entry "
"at input %u (%s:%d).",
instruction->DebugName(),
instruction->GetId(),
}
// Ensure an instruction dominates all its uses.
- for (HUseIterator<HInstruction*> use_it(instruction->GetUses());
- !use_it.Done(); use_it.Advance()) {
- HInstruction* use = use_it.Current()->GetUser();
- if (!use->IsPhi() && !instruction->StrictlyDominates(use)) {
+ for (const HUseListNode<HInstruction*>& use : instruction->GetUses()) {
+ HInstruction* user = use.GetUser();
+ if (!user->IsPhi() && !instruction->StrictlyDominates(user)) {
AddError(StringPrintf("Instruction %s:%d in block %d does not dominate "
"use %s:%d in block %d.",
instruction->DebugName(),
instruction->GetId(),
current_block_->GetBlockId(),
- use->DebugName(),
- use->GetId(),
- use->GetBlock()->GetBlockId()));
+ user->DebugName(),
+ user->GetId(),
+ user->GetBlock()->GetBlockId()));
}
}
for (HInstructionIterator it(list); !it.Done(); it.Advance()) {
HInstruction* instruction = it.Current();
int bci = 0;
- size_t num_uses = 0;
- for (HUseIterator<HInstruction*> use_it(instruction->GetUses());
- !use_it.Done();
- use_it.Advance()) {
- ++num_uses;
- }
+ size_t num_uses = instruction->GetUses().SizeSlow();
AddIndent();
output_ << bci << " " << num_uses << " "
<< GetTypeId(instruction->GetType()) << instruction->GetId() << " ";
return true;
}
- for (HUseIterator<HInstruction*> it(input->GetUses()); !it.Done(); it.Advance()) {
- HInstruction* use = it.Current()->GetUser();
- if (use->IsNullCheck() && use->StrictlyDominates(at)) {
+ for (const HUseListNode<HInstruction*>& use : input->GetUses()) {
+ HInstruction* user = use.GetUser();
+ if (user->IsNullCheck() && user->StrictlyDominates(at)) {
return true;
}
}
}
// Is the Compare only used for this purpose?
- if (!left->GetUses().HasOnlyOneUse()) {
+ if (!left->GetUses().HasExactlyOneElement()) {
// Someone else also wants the result of the compare.
return;
}
- if (!left->GetEnvUses().IsEmpty()) {
+ if (!left->GetEnvUses().empty()) {
// There is a reference to the compare result in an environment. Do we really need it?
if (GetGraph()->IsDebuggable()) {
return;
shift_amount,
use->GetDexPc());
use->GetBlock()->ReplaceAndRemoveInstructionWith(use, alu_with_op);
- if (bitfield_op->GetUses().IsEmpty()) {
+ if (bitfield_op->GetUses().empty()) {
bitfield_op->GetBlock()->RemoveInstruction(bitfield_op);
}
RecordSimplification();
const HUseList<HInstruction*>& uses = bitfield_op->GetUses();
// Check whether we can merge the instruction in all its users' shifter operand.
- for (HUseIterator<HInstruction*> it_use(uses); !it_use.Done(); it_use.Advance()) {
- HInstruction* use = it_use.Current()->GetUser();
- if (!HasShifterOperand(use)) {
+ for (const HUseListNode<HInstruction*>& use : uses) {
+ HInstruction* user = use.GetUser();
+ if (!HasShifterOperand(user)) {
return false;
}
- if (!CanMergeIntoShifterOperand(use, bitfield_op)) {
+ if (!CanMergeIntoShifterOperand(user, bitfield_op)) {
return false;
}
}
// Merge the instruction into its uses.
- for (HUseIterator<HInstruction*> it_use(uses); !it_use.Done(); it_use.Advance()) {
- HInstruction* use = it_use.Current()->GetUser();
- bool merged = MergeIntoShifterOperand(use, bitfield_op);
+ for (auto it = uses.begin(), end = uses.end(); it != end; /* ++it below */) {
+ HInstruction* user = it->GetUser();
+ // Increment `it` now because `*it` will disappear thanks to MergeIntoShifterOperand().
+ ++it;
+ bool merged = MergeIntoShifterOperand(user, bitfield_op);
DCHECK(merged);
}
return false;
}
- HInstruction* use = mul->HasNonEnvironmentUses()
- ? mul->GetUses().GetFirst()->GetUser()
- : nullptr;
-
ArenaAllocator* arena = mul->GetBlock()->GetGraph()->GetArena();
if (mul->HasOnlyOneNonEnvironmentUse()) {
+ HInstruction* use = mul->GetUses().front().GetUser();
if (use->IsAdd() || use->IsSub()) {
// Replace code looking like
// MUL tmp, x, y
ASSERT_TRUE(range->GetNext() == nullptr);
HPhi* phi = liveness.GetInstructionFromSsaIndex(4)->AsPhi();
- ASSERT_TRUE(phi->GetUses().HasOnlyOneUse());
+ ASSERT_TRUE(phi->GetUses().HasExactlyOneElement());
interval = phi->GetLiveInterval();
range = interval->GetFirstRange();
ASSERT_EQ(26u, range->GetStart());
// Visit all uses to determine if this reference can spread into the heap,
// a method call, etc.
- for (HUseIterator<HInstruction*> use_it(reference_->GetUses());
- !use_it.Done();
- use_it.Advance()) {
- HInstruction* use = use_it.Current()->GetUser();
- DCHECK(!use->IsNullCheck()) << "NullCheck should have been eliminated";
- if (use->IsBoundType()) {
+ for (const HUseListNode<HInstruction*>& use : reference_->GetUses()) {
+ HInstruction* user = use.GetUser();
+ DCHECK(!user->IsNullCheck()) << "NullCheck should have been eliminated";
+ if (user->IsBoundType()) {
// BoundType shouldn't normally be necessary for a NewInstance.
// Just be conservative for the uncommon cases.
is_singleton_ = false;
is_singleton_and_not_returned_ = false;
return;
}
- if (use->IsPhi() || use->IsSelect() || use->IsInvoke() ||
- (use->IsInstanceFieldSet() && (reference_ == use->InputAt(1))) ||
- (use->IsUnresolvedInstanceFieldSet() && (reference_ == use->InputAt(1))) ||
- (use->IsStaticFieldSet() && (reference_ == use->InputAt(1))) ||
- (use->IsUnresolvedStaticFieldSet() && (reference_ == use->InputAt(0))) ||
- (use->IsArraySet() && (reference_ == use->InputAt(2)))) {
+ if (user->IsPhi() || user->IsSelect() || user->IsInvoke() ||
+ (user->IsInstanceFieldSet() && (reference_ == user->InputAt(1))) ||
+ (user->IsUnresolvedInstanceFieldSet() && (reference_ == user->InputAt(1))) ||
+ (user->IsStaticFieldSet() && (reference_ == user->InputAt(1))) ||
+ (user->IsUnresolvedStaticFieldSet() && (reference_ == user->InputAt(0))) ||
+ (user->IsArraySet() && (reference_ == user->InputAt(2)))) {
// reference_ is merged to HPhi/HSelect, passed to a callee, or stored to heap.
// reference_ isn't the only name that can refer to its value anymore.
is_singleton_ = false;
is_singleton_and_not_returned_ = false;
return;
}
- if (use->IsReturn()) {
+ if (user->IsReturn()) {
is_singleton_and_not_returned_ = false;
}
}
DCHECK_EQ(replacement->GetType(), Primitive::kPrimVoid);
DCHECK_EQ(initial->GetBlock(), this);
DCHECK_EQ(initial->GetType(), Primitive::kPrimVoid);
- DCHECK(initial->GetUses().IsEmpty());
- DCHECK(initial->GetEnvUses().IsEmpty());
+ DCHECK(initial->GetUses().empty());
+ DCHECK(initial->GetEnvUses().empty());
replacement->SetBlock(this);
replacement->SetId(GetGraph()->GetNextInstructionId());
instructions_.InsertInstructionBefore(replacement, initial);
instruction->SetBlock(nullptr);
instruction_list->RemoveInstruction(instruction);
if (ensure_safety) {
- DCHECK(instruction->GetUses().IsEmpty());
- DCHECK(instruction->GetEnvUses().IsEmpty());
+ DCHECK(instruction->GetUses().empty());
+ DCHECK(instruction->GetEnvUses().empty());
RemoveAsUser(instruction);
}
}
}
void HEnvironment::RemoveAsUserOfInput(size_t index) const {
- const HUserRecord<HEnvironment*>& user_record = vregs_[index];
- user_record.GetInstruction()->RemoveEnvironmentUser(user_record.GetUseNode());
+ const HUserRecord<HEnvironment*>& env_use = vregs_[index];
+ HInstruction* user = env_use.GetInstruction();
+ auto before_env_use_node = env_use.GetBeforeUseNode();
+ user->env_uses_.erase_after(before_env_use_node);
+ user->FixUpUserRecordsAfterEnvUseRemoval(before_env_use_node);
}
HInstruction::InstructionKind HInstruction::GetKind() const {
void HInstruction::ReplaceWith(HInstruction* other) {
DCHECK(other != nullptr);
- for (HUseIterator<HInstruction*> it(GetUses()); !it.Done(); it.Advance()) {
- HUseListNode<HInstruction*>* current = it.Current();
- HInstruction* user = current->GetUser();
- size_t input_index = current->GetIndex();
+ for (const HUseListNode<HInstruction*>& use : GetUses()) {
+ HInstruction* user = use.GetUser();
+ size_t input_index = use.GetIndex();
user->SetRawInputAt(input_index, other);
other->AddUseAt(user, input_index);
}
- for (HUseIterator<HEnvironment*> it(GetEnvUses()); !it.Done(); it.Advance()) {
- HUseListNode<HEnvironment*>* current = it.Current();
- HEnvironment* user = current->GetUser();
- size_t input_index = current->GetIndex();
+ for (const HUseListNode<HEnvironment*>& use : GetEnvUses()) {
+ HEnvironment* user = use.GetUser();
+ size_t input_index = use.GetIndex();
user->SetRawEnvAt(input_index, other);
other->AddEnvUseAt(user, input_index);
}
- uses_.Clear();
- env_uses_.Clear();
+ uses_.clear();
+ env_uses_.clear();
}
void HInstruction::ReplaceInput(HInstruction* replacement, size_t index) {
DCHECK_EQ(InputCount(), 0u);
// Find the target block.
- HUseIterator<HInstruction*> uses_it(GetUses());
- HBasicBlock* target_block = uses_it.Current()->GetUser()->GetBlock();
- uses_it.Advance();
- while (!uses_it.Done() && uses_it.Current()->GetUser()->GetBlock() == target_block) {
- uses_it.Advance();
- }
- if (!uses_it.Done()) {
+ auto uses_it = GetUses().begin();
+ auto uses_end = GetUses().end();
+ HBasicBlock* target_block = uses_it->GetUser()->GetBlock();
+ ++uses_it;
+ while (uses_it != uses_end && uses_it->GetUser()->GetBlock() == target_block) {
+ ++uses_it;
+ }
+ if (uses_it != uses_end) {
// This instruction has uses in two or more blocks. Find the common dominator.
CommonDominator finder(target_block);
- for (; !uses_it.Done(); uses_it.Advance()) {
- finder.Update(uses_it.Current()->GetUser()->GetBlock());
+ for (; uses_it != uses_end; ++uses_it) {
+ finder.Update(uses_it->GetUser()->GetBlock());
}
target_block = finder.Get();
DCHECK(target_block != nullptr);
// Find insertion position.
HInstruction* insert_pos = nullptr;
- for (HUseIterator<HInstruction*> uses_it2(GetUses()); !uses_it2.Done(); uses_it2.Advance()) {
- if (uses_it2.Current()->GetUser()->GetBlock() == target_block &&
- (insert_pos == nullptr || uses_it2.Current()->GetUser()->StrictlyDominates(insert_pos))) {
- insert_pos = uses_it2.Current()->GetUser();
+ for (const HUseListNode<HInstruction*>& use : GetUses()) {
+ if (use.GetUser()->GetBlock() == target_block &&
+ (insert_pos == nullptr || use.GetUser()->StrictlyDominates(insert_pos))) {
+ insert_pos = use.GetUser();
}
}
if (insert_pos == nullptr) {
static void RemoveUsesOfDeadInstruction(HInstruction* insn) {
DCHECK(!insn->HasEnvironmentUses());
while (insn->HasNonEnvironmentUses()) {
- HUseListNode<HInstruction*>* use = insn->GetUses().GetFirst();
- size_t use_index = use->GetIndex();
- HBasicBlock* user_block = use->GetUser()->GetBlock();
- DCHECK(use->GetUser()->IsPhi() && user_block->IsCatchBlock());
+ const HUseListNode<HInstruction*>& use = insn->GetUses().front();
+ size_t use_index = use.GetIndex();
+ HBasicBlock* user_block = use.GetUser()->GetBlock();
+ DCHECK(use.GetUser()->IsPhi() && user_block->IsCatchBlock());
for (HInstructionIterator phi_it(user_block->GetPhis()); !phi_it.Done(); phi_it.Advance()) {
phi_it.Current()->AsPhi()->RemoveInputAt(use_index);
}
}
void HInstruction::RemoveEnvironmentUsers() {
- for (HUseIterator<HEnvironment*> use_it(GetEnvUses()); !use_it.Done(); use_it.Advance()) {
- HUseListNode<HEnvironment*>* user_node = use_it.Current();
- HEnvironment* user = user_node->GetUser();
- user->SetRawEnvAt(user_node->GetIndex(), nullptr);
+ for (const HUseListNode<HEnvironment*>& use : GetEnvUses()) {
+ HEnvironment* user = use.GetUser();
+ user->SetRawEnvAt(use.GetIndex(), nullptr);
}
- env_uses_.Clear();
+ env_uses_.clear();
}
// Returns an instruction with the opposite Boolean value from 'cond'.
#include "offsets.h"
#include "primitive.h"
#include "utils/array_ref.h"
+#include "utils/intrusive_forward_list.h"
namespace art {
const H##type* As##type() const { return this; } \
H##type* As##type() { return this; }
-template <typename T> class HUseList;
-
template <typename T>
class HUseListNode : public ArenaObject<kArenaAllocUseListNode> {
public:
- HUseListNode* GetPrevious() const { return prev_; }
- HUseListNode* GetNext() const { return next_; }
T GetUser() const { return user_; }
size_t GetIndex() const { return index_; }
void SetIndex(size_t index) { index_ = index; }
+ // Hook for the IntrusiveForwardList<>.
+ // TODO: Hide this better.
+ IntrusiveForwardListHook hook;
+
private:
HUseListNode(T user, size_t index)
- : user_(user), index_(index), prev_(nullptr), next_(nullptr) {}
+ : user_(user), index_(index) {}
T const user_;
size_t index_;
- HUseListNode<T>* prev_;
- HUseListNode<T>* next_;
- friend class HUseList<T>;
+ friend class HInstruction;
DISALLOW_COPY_AND_ASSIGN(HUseListNode);
};
template <typename T>
-class HUseList : public ValueObject {
- public:
- HUseList() : first_(nullptr) {}
-
- void Clear() {
- first_ = nullptr;
- }
-
- // Adds a new entry at the beginning of the use list and returns
- // the newly created node.
- HUseListNode<T>* AddUse(T user, size_t index, ArenaAllocator* arena) {
- HUseListNode<T>* new_node = new (arena) HUseListNode<T>(user, index);
- if (IsEmpty()) {
- first_ = new_node;
- } else {
- first_->prev_ = new_node;
- new_node->next_ = first_;
- first_ = new_node;
- }
- return new_node;
- }
-
- HUseListNode<T>* GetFirst() const {
- return first_;
- }
-
- void Remove(HUseListNode<T>* node) {
- DCHECK(node != nullptr);
- DCHECK(Contains(node));
-
- if (node->prev_ != nullptr) {
- node->prev_->next_ = node->next_;
- }
- if (node->next_ != nullptr) {
- node->next_->prev_ = node->prev_;
- }
- if (node == first_) {
- first_ = node->next_;
- }
- }
-
- bool Contains(const HUseListNode<T>* node) const {
- if (node == nullptr) {
- return false;
- }
- for (HUseListNode<T>* current = first_; current != nullptr; current = current->GetNext()) {
- if (current == node) {
- return true;
- }
- }
- return false;
- }
-
- bool IsEmpty() const {
- return first_ == nullptr;
- }
-
- bool HasOnlyOneUse() const {
- return first_ != nullptr && first_->next_ == nullptr;
- }
-
- size_t SizeSlow() const {
- size_t count = 0;
- for (HUseListNode<T>* current = first_; current != nullptr; current = current->GetNext()) {
- ++count;
- }
- return count;
- }
-
- private:
- HUseListNode<T>* first_;
-};
-
-template<typename T>
-class HUseIterator : public ValueObject {
- public:
- explicit HUseIterator(const HUseList<T>& uses) : current_(uses.GetFirst()) {}
-
- bool Done() const { return current_ == nullptr; }
-
- void Advance() {
- DCHECK(!Done());
- current_ = current_->GetNext();
- }
-
- HUseListNode<T>* Current() const {
- DCHECK(!Done());
- return current_;
- }
-
- private:
- HUseListNode<T>* current_;
-
- friend class HValue;
-};
+using HUseList = IntrusiveForwardList<HUseListNode<T>>;
// This class is used by HEnvironment and HInstruction classes to record the
// instructions they use and pointers to the corresponding HUseListNodes kept
template <typename T>
class HUserRecord : public ValueObject {
public:
- HUserRecord() : instruction_(nullptr), use_node_(nullptr) {}
- explicit HUserRecord(HInstruction* instruction) : instruction_(instruction), use_node_(nullptr) {}
+ HUserRecord() : instruction_(nullptr), before_use_node_() {}
+ explicit HUserRecord(HInstruction* instruction) : instruction_(instruction), before_use_node_() {}
- HUserRecord(const HUserRecord<T>& old_record, HUseListNode<T>* use_node)
- : instruction_(old_record.instruction_), use_node_(use_node) {
+ HUserRecord(const HUserRecord<T>& old_record, typename HUseList<T>::iterator before_use_node)
+ : HUserRecord(old_record.instruction_, before_use_node) {}
+ HUserRecord(HInstruction* instruction, typename HUseList<T>::iterator before_use_node)
+ : instruction_(instruction), before_use_node_(before_use_node) {
DCHECK(instruction_ != nullptr);
- DCHECK(use_node_ != nullptr);
- DCHECK(old_record.use_node_ == nullptr);
}
HInstruction* GetInstruction() const { return instruction_; }
- HUseListNode<T>* GetUseNode() const { return use_node_; }
+ typename HUseList<T>::iterator GetBeforeUseNode() const { return before_use_node_; }
+ typename HUseList<T>::iterator GetUseNode() const { return ++GetBeforeUseNode(); }
private:
// Instruction used by the user.
HInstruction* instruction_;
- // Corresponding entry in the use list kept by 'instruction_'.
- HUseListNode<T>* use_node_;
+ // Iterator before the corresponding entry in the use list kept by 'instruction_'.
+ typename HUseList<T>::iterator before_use_node_;
};
/**
}
private:
- // Record instructions' use entries of this environment for constant-time removal.
- // It should only be called by HInstruction when a new environment use is added.
- void RecordEnvUse(HUseListNode<HEnvironment*>* env_use) {
- DCHECK(env_use->GetUser() == this);
- size_t index = env_use->GetIndex();
- vregs_[index] = HUserRecord<HEnvironment*>(vregs_[index], env_use);
- }
-
ArenaVector<HUserRecord<HEnvironment*>> vregs_;
ArenaVector<Location> locations_;
HEnvironment* parent_;
void AddUseAt(HInstruction* user, size_t index) {
DCHECK(user != nullptr);
- HUseListNode<HInstruction*>* use =
- uses_.AddUse(user, index, GetBlock()->GetGraph()->GetArena());
- user->SetRawInputRecordAt(index, HUserRecord<HInstruction*>(user->InputRecordAt(index), use));
+ // Note: fixup_end remains valid across push_front().
+ auto fixup_end = uses_.empty() ? uses_.begin() : ++uses_.begin();
+ HUseListNode<HInstruction*>* new_node =
+ new (GetBlock()->GetGraph()->GetArena()) HUseListNode<HInstruction*>(user, index);
+ uses_.push_front(*new_node);
+ FixUpUserRecordsAfterUseInsertion(fixup_end);
}
void AddEnvUseAt(HEnvironment* user, size_t index) {
DCHECK(user != nullptr);
- HUseListNode<HEnvironment*>* env_use =
- env_uses_.AddUse(user, index, GetBlock()->GetGraph()->GetArena());
- user->RecordEnvUse(env_use);
+ // Note: env_fixup_end remains valid across push_front().
+ auto env_fixup_end = env_uses_.empty() ? env_uses_.begin() : ++env_uses_.begin();
+ HUseListNode<HEnvironment*>* new_node =
+ new (GetBlock()->GetGraph()->GetArena()) HUseListNode<HEnvironment*>(user, index);
+ env_uses_.push_front(*new_node);
+ FixUpUserRecordsAfterEnvUseInsertion(env_fixup_end);
}
void RemoveAsUserOfInput(size_t input) {
HUserRecord<HInstruction*> input_use = InputRecordAt(input);
- input_use.GetInstruction()->uses_.Remove(input_use.GetUseNode());
+ HUseList<HInstruction*>::iterator before_use_node = input_use.GetBeforeUseNode();
+ input_use.GetInstruction()->uses_.erase_after(before_use_node);
+ input_use.GetInstruction()->FixUpUserRecordsAfterUseRemoval(before_use_node);
}
const HUseList<HInstruction*>& GetUses() const { return uses_; }
const HUseList<HEnvironment*>& GetEnvUses() const { return env_uses_; }
- bool HasUses() const { return !uses_.IsEmpty() || !env_uses_.IsEmpty(); }
- bool HasEnvironmentUses() const { return !env_uses_.IsEmpty(); }
- bool HasNonEnvironmentUses() const { return !uses_.IsEmpty(); }
+ bool HasUses() const { return !uses_.empty() || !env_uses_.empty(); }
+ bool HasEnvironmentUses() const { return !env_uses_.empty(); }
+ bool HasNonEnvironmentUses() const { return !uses_.empty(); }
bool HasOnlyOneNonEnvironmentUse() const {
- return !HasEnvironmentUses() && GetUses().HasOnlyOneUse();
+ return !HasEnvironmentUses() && GetUses().HasExactlyOneElement();
}
// Does this instruction strictly dominate `other_instruction`?
}
private:
- void RemoveEnvironmentUser(HUseListNode<HEnvironment*>* use_node) { env_uses_.Remove(use_node); }
+ void FixUpUserRecordsAfterUseInsertion(HUseList<HInstruction*>::iterator fixup_end) {
+ auto before_use_node = uses_.before_begin();
+ for (auto use_node = uses_.begin(); use_node != fixup_end; ++use_node) {
+ HInstruction* user = use_node->GetUser();
+ size_t input_index = use_node->GetIndex();
+ user->SetRawInputRecordAt(input_index, HUserRecord<HInstruction*>(this, before_use_node));
+ before_use_node = use_node;
+ }
+ }
+
+ void FixUpUserRecordsAfterUseRemoval(HUseList<HInstruction*>::iterator before_use_node) {
+ auto next = ++HUseList<HInstruction*>::iterator(before_use_node);
+ if (next != uses_.end()) {
+ HInstruction* next_user = next->GetUser();
+ size_t next_index = next->GetIndex();
+ DCHECK(next_user->InputRecordAt(next_index).GetInstruction() == this);
+ next_user->SetRawInputRecordAt(next_index, HUserRecord<HInstruction*>(this, before_use_node));
+ }
+ }
+
+ void FixUpUserRecordsAfterEnvUseInsertion(HUseList<HEnvironment*>::iterator env_fixup_end) {
+ auto before_env_use_node = env_uses_.before_begin();
+ for (auto env_use_node = env_uses_.begin(); env_use_node != env_fixup_end; ++env_use_node) {
+ HEnvironment* user = env_use_node->GetUser();
+ size_t input_index = env_use_node->GetIndex();
+ user->vregs_[input_index] = HUserRecord<HEnvironment*>(this, before_env_use_node);
+ before_env_use_node = env_use_node;
+ }
+ }
+
+ void FixUpUserRecordsAfterEnvUseRemoval(HUseList<HEnvironment*>::iterator before_env_use_node) {
+ auto next = ++HUseList<HEnvironment*>::iterator(before_env_use_node);
+ if (next != env_uses_.end()) {
+ HEnvironment* next_user = next->GetUser();
+ size_t next_index = next->GetIndex();
+ DCHECK(next_user->vregs_[next_index].GetInstruction() == this);
+ next_user->vregs_[next_index] = HUserRecord<HEnvironment*>(this, before_env_use_node);
+ }
+ }
HInstruction* previous_;
HInstruction* next_;
entry->InsertInstructionBefore(to_insert, parameter2);
ASSERT_TRUE(parameter1->HasUses());
- ASSERT_TRUE(parameter1->GetUses().HasOnlyOneUse());
+ ASSERT_TRUE(parameter1->GetUses().HasExactlyOneElement());
}
/**
entry->AddInstruction(to_add);
ASSERT_TRUE(parameter->HasUses());
- ASSERT_TRUE(parameter->GetUses().HasOnlyOneUse());
+ ASSERT_TRUE(parameter->GetUses().HasExactlyOneElement());
}
TEST(Node, ParentEnvironment) {
entry->AddInstruction(new (&allocator) HExit());
ASSERT_TRUE(parameter1->HasUses());
- ASSERT_TRUE(parameter1->GetUses().HasOnlyOneUse());
+ ASSERT_TRUE(parameter1->GetUses().HasExactlyOneElement());
HEnvironment* environment = new (&allocator) HEnvironment(
&allocator, 1, graph->GetDexFile(), graph->GetMethodIdx(), 0, kStatic, with_environment);
with_environment->SetRawEnvironment(environment);
ASSERT_TRUE(parameter1->HasEnvironmentUses());
- ASSERT_TRUE(parameter1->GetEnvUses().HasOnlyOneUse());
+ ASSERT_TRUE(parameter1->GetEnvUses().HasExactlyOneElement());
HEnvironment* parent1 = new (&allocator) HEnvironment(
&allocator, 1, graph->GetDexFile(), graph->GetMethodIdx(), 0, kStatic, nullptr);
void PrepareForRegisterAllocation::VisitClinitCheck(HClinitCheck* check) {
// Try to find a static invoke or a new-instance from which this check originated.
HInstruction* implicit_clinit = nullptr;
- for (HUseIterator<HInstruction*> it(check->GetUses()); !it.Done(); it.Advance()) {
- HInstruction* user = it.Current()->GetUser();
+ for (const HUseListNode<HInstruction*>& use : check->GetUses()) {
+ HInstruction* user = use.GetUser();
if ((user->IsInvokeStaticOrDirect() || user->IsNewInstance()) &&
CanMoveClinitCheck(check, user)) {
implicit_clinit = user;
// If we found a static invoke or new-instance for merging, remove the check
// from dominated static invokes.
if (implicit_clinit != nullptr) {
- for (HUseIterator<HInstruction*> it(check->GetUses()); !it.Done(); ) {
- HInstruction* user = it.Current()->GetUser();
+ const HUseList<HInstruction*>& uses = check->GetUses();
+ for (auto it = uses.begin(), end = uses.end(); it != end; /* ++it below */) {
+ HInstruction* user = it->GetUser();
// All other uses must be dominated.
DCHECK(implicit_clinit->StrictlyDominates(user) || (implicit_clinit == user));
- it.Advance(); // Advance before we remove the node, reference to the next node is preserved.
+ ++it; // Advance before we remove the node, reference to the next node is preserved.
if (user->IsInvokeStaticOrDirect()) {
user->AsInvokeStaticOrDirect()->RemoveExplicitClinitCheck(
HInvokeStaticOrDirect::ClinitCheckRequirement::kNone);
void PrepareForRegisterAllocation::VisitCondition(HCondition* condition) {
if (condition->HasOnlyOneNonEnvironmentUse()) {
- HInstruction* user = condition->GetUses().GetFirst()->GetUser();
+ HInstruction* user = condition->GetUses().front().GetUser();
if (CanEmitConditionAt(condition, user)) {
condition->MarkEmittedAtUseSite();
}
if (instruction->HasUses()) {
PrintString(" [");
bool first = true;
- for (HUseIterator<HInstruction*> it(instruction->GetUses()); !it.Done(); it.Advance()) {
+ for (const HUseListNode<HInstruction*>& use : instruction->GetUses()) {
if (first) {
first = false;
} else {
PrintString(", ");
}
- PrintInt(it.Current()->GetUser()->GetId());
+ PrintInt(use.GetUser()->GetId());
}
PrintString("]");
}
if (existing_bound_type->GetUpperBound().IsSupertypeOf(upper_bound)) {
if (kIsDebugBuild) {
// Check that the existing HBoundType dominates all the uses.
- for (HUseIterator<HInstruction*> it(obj->GetUses()); !it.Done(); it.Advance()) {
- HInstruction* user = it.Current()->GetUser();
+ for (const HUseListNode<HInstruction*>& use : obj->GetUses()) {
+ HInstruction* user = use.GetUser();
if (dominator_instr != nullptr) {
DCHECK(!dominator_instr->StrictlyDominates(user)
|| user == existing_bound_type
? ifInstruction->IfTrueSuccessor()
: ifInstruction->IfFalseSuccessor();
- for (HUseIterator<HInstruction*> it(obj->GetUses()); !it.Done(); it.Advance()) {
- HInstruction* user = it.Current()->GetUser();
+ const HUseList<HInstruction*>& uses = obj->GetUses();
+ for (auto it = uses.begin(), end = uses.end(); it != end; /* ++it below */) {
+ HInstruction* user = it->GetUser();
+ size_t index = it->GetIndex();
+ // Increment `it` now because `*it` may disappear thanks to user->ReplaceInput().
+ ++it;
if (notNullBlock->Dominates(user->GetBlock())) {
if (bound_type == nullptr) {
ScopedObjectAccess soa(Thread::Current());
break;
}
}
- user->ReplaceInput(bound_type, it.Current()->GetIndex());
+ user->ReplaceInput(bound_type, index);
}
}
}
return;
}
DCHECK(!obj->IsLoadClass()) << "We should not replace HLoadClass instructions";
- for (HUseIterator<HInstruction*> it(obj->GetUses()); !it.Done(); it.Advance()) {
- HInstruction* user = it.Current()->GetUser();
+ const HUseList<HInstruction*>& uses = obj->GetUses();
+ for (auto it = uses.begin(), end = uses.end(); it != end; /* ++it below */) {
+ HInstruction* user = it->GetUser();
+ size_t index = it->GetIndex();
+ // Increment `it` now because `*it` may disappear thanks to user->ReplaceInput().
+ ++it;
if (instanceOfTrueBlock->Dominates(user->GetBlock())) {
if (bound_type == nullptr) {
ScopedObjectAccess soa(Thread::Current());
break;
}
}
- user->ReplaceInput(bound_type, it.Current()->GetIndex());
+ user->ReplaceInput(bound_type, index);
}
}
}
}
void ReferenceTypePropagation::AddDependentInstructionsToWorklist(HInstruction* instruction) {
- for (HUseIterator<HInstruction*> it(instruction->GetUses()); !it.Done(); it.Advance()) {
- HInstruction* user = it.Current()->GetUser();
+ for (const HUseListNode<HInstruction*>& use : instruction->GetUses()) {
+ HInstruction* user = use.GetUser();
if ((user->IsPhi() && user->AsPhi()->IsLive())
|| user->IsBoundType()
|| user->IsNullCheck()
// marked dead/conflicting too, so we add them to the worklist. Otherwise we
// add users whose type does not match and needs to be updated.
bool add_all_live_phis = instruction->IsPhi() && instruction->AsPhi()->IsDead();
- for (HUseIterator<HInstruction*> it(instruction->GetUses()); !it.Done(); it.Advance()) {
- HInstruction* user = it.Current()->GetUser();
+ for (const HUseListNode<HInstruction*>& use : instruction->GetUses()) {
+ HInstruction* user = use.GetUser();
if (user->IsPhi() && user->AsPhi()->IsLive()) {
if (add_all_live_phis || user->GetType() != instruction->GetType()) {
worklist->push_back(user->AsPhi());
}
static bool HasAliasInEnvironments(HInstruction* instruction) {
- for (HUseIterator<HEnvironment*> use_it(instruction->GetEnvUses());
- !use_it.Done();
- use_it.Advance()) {
- HEnvironment* use = use_it.Current()->GetUser();
- HUseListNode<HEnvironment*>* next = use_it.Current()->GetNext();
- if (next != nullptr && next->GetUser() == use) {
+ HEnvironment* last_user = nullptr;
+ for (const HUseListNode<HEnvironment*>& use : instruction->GetEnvUses()) {
+ DCHECK(use.GetUser() != nullptr);
+ // Note: The first comparison (== null) always fails.
+ if (use.GetUser() == last_user) {
return true;
}
+ last_user = use.GetUser();
}
if (kIsDebugBuild) {
// Do a quadratic search to ensure same environment uses are next
// to each other.
- for (HUseIterator<HEnvironment*> use_it(instruction->GetEnvUses());
- !use_it.Done();
- use_it.Advance()) {
- HUseListNode<HEnvironment*>* current = use_it.Current();
- HUseListNode<HEnvironment*>* next = current->GetNext();
- while (next != nullptr) {
+ const HUseList<HEnvironment*>& env_uses = instruction->GetEnvUses();
+ for (auto current = env_uses.begin(), end = env_uses.end(); current != end; ++current) {
+ auto next = current;
+ for (++next; next != end; ++next) {
DCHECK(next->GetUser() != current->GetUser());
- next = next->GetNext();
}
}
}
if (current->IsEmittedAtUseSite()) {
if (kIsDebugBuild) {
DCHECK(!current->GetLocations()->Out().IsValid());
- for (HUseIterator<HInstruction*> use_it(current->GetUses());
- !use_it.Done();
- use_it.Advance()) {
- HInstruction* user = use_it.Current()->GetUser();
- size_t index = use_it.Current()->GetIndex();
+ for (const HUseListNode<HInstruction*>& use : current->GetUses()) {
+ HInstruction* user = use.GetUser();
+ size_t index = use.GetIndex();
DCHECK(!user->GetLocations()->InAt(index).IsValid());
}
DCHECK(!current->HasEnvironmentUses());
bool keep_alive = (graph_->IsDebuggable() && phi->HasEnvironmentUses());
if (!keep_alive) {
- for (HUseIterator<HInstruction*> use_it(phi->GetUses()); !use_it.Done(); use_it.Advance()) {
- if (!use_it.Current()->GetUser()->IsPhi()) {
+ for (const HUseListNode<HInstruction*>& use : phi->GetUses()) {
+ if (!use.GetUser()->IsPhi()) {
keep_alive = true;
break;
}
if (phi->IsDead()) {
// Make sure the phi is only used by other dead phis.
if (kIsDebugBuild) {
- for (HUseIterator<HInstruction*> use_it(phi->GetUses()); !use_it.Done();
- use_it.Advance()) {
- HInstruction* user = use_it.Current()->GetUser();
+ for (const HUseListNode<HInstruction*>& use : phi->GetUses()) {
+ HInstruction* user = use.GetUser();
DCHECK(user->IsLoopHeaderPhi());
DCHECK(user->AsPhi()->IsDead());
}
phi->RemoveAsUserOfInput(i);
}
// Remove the phi from environments that use it.
- for (HUseIterator<HEnvironment*> use_it(phi->GetEnvUses()); !use_it.Done();
- use_it.Advance()) {
- HUseListNode<HEnvironment*>* user_node = use_it.Current();
- HEnvironment* user = user_node->GetUser();
- user->SetRawEnvAt(user_node->GetIndex(), nullptr);
+ for (const HUseListNode<HEnvironment*>& use : phi->GetEnvUses()) {
+ HEnvironment* user = use.GetUser();
+ user->SetRawEnvAt(use.GetIndex(), nullptr);
}
// Delete it from the instruction list.
block->RemovePhi(phi, /*ensure_safety=*/ false);
// Because we're updating the users of this phi, we may have new candidates
// for elimination. Add phis that use this phi to the worklist.
- for (HUseIterator<HInstruction*> it(current->GetUses()); !it.Done(); it.Advance()) {
- HUseListNode<HInstruction*>* use = it.Current();
- HInstruction* user = use->GetUser();
+ for (const HUseListNode<HInstruction*>& use : current->GetUses()) {
+ HInstruction* user = use.GetUser();
if (user->IsPhi() && !ContainsElement(visited_phis_in_cycle, user->GetId())) {
worklist_.push_back(user->AsPhi());
}
--- /dev/null
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_COMPILER_UTILS_INTRUSIVE_FORWARD_LIST_H_
+#define ART_COMPILER_UTILS_INTRUSIVE_FORWARD_LIST_H_
+
+#include <stdint.h>
+#include <functional>
+#include <iterator>
+#include <memory>
+#include <type_traits>
+
+#include "base/logging.h"
+#include "base/macros.h"
+
+namespace art {
+
+struct IntrusiveForwardListHook {
+ IntrusiveForwardListHook() : next_hook(nullptr) { }
+ explicit IntrusiveForwardListHook(const IntrusiveForwardListHook* hook) : next_hook(hook) { }
+
+ // Allow copyable values but do not copy the hook, it is not part of the value.
+ IntrusiveForwardListHook(const IntrusiveForwardListHook& other ATTRIBUTE_UNUSED)
+ : next_hook(nullptr) { }
+ IntrusiveForwardListHook& operator=(const IntrusiveForwardListHook& src ATTRIBUTE_UNUSED) {
+ return *this;
+ }
+
+ mutable const IntrusiveForwardListHook* next_hook;
+};
+
+template <typename T, IntrusiveForwardListHook T::* NextPtr = &T::hook>
+class IntrusiveForwardListMemberHook;
+
+template <typename T, typename HookTraits = IntrusiveForwardListMemberHook<T>>
+class IntrusiveForwardList;
+
+template <typename T, typename HookTraits>
+class IntrusiveForwardListIterator : public std::iterator<std::forward_iterator_tag, T> {
+ public:
+ // Construct/copy/destroy (except the private constructor used by IntrusiveForwardList<>).
+ IntrusiveForwardListIterator() : hook_(nullptr) { }
+ IntrusiveForwardListIterator(const IntrusiveForwardListIterator& src) = default;
+ IntrusiveForwardListIterator& operator=(const IntrusiveForwardListIterator& src) = default;
+
+ // Conversion from iterator to const_iterator.
+ template <typename OtherT,
+ typename = typename std::enable_if<std::is_same<T, const OtherT>::value>::type>
+ IntrusiveForwardListIterator(const IntrusiveForwardListIterator<OtherT, HookTraits>& src)
+ : hook_(src.hook_) { }
+
+ // Iteration.
+ IntrusiveForwardListIterator& operator++() {
+ DCHECK(hook_ != nullptr);
+ hook_ = hook_->next_hook;
+ return *this;
+ }
+ IntrusiveForwardListIterator operator++(int) {
+ IntrusiveForwardListIterator tmp(*this);
+ ++*this;
+ return tmp;
+ }
+
+ // Dereference
+ T& operator*() const {
+ DCHECK(hook_ != nullptr);
+ return *HookTraits::GetValue(hook_);
+ }
+ T* operator->() const {
+ return &**this;
+ }
+
+ private:
+ explicit IntrusiveForwardListIterator(const IntrusiveForwardListHook* hook) : hook_(hook) { }
+
+ const IntrusiveForwardListHook* hook_;
+
+ template <typename OtherT, typename OtherTraits>
+ friend class IntrusiveForwardListIterator;
+
+ template <typename OtherT, typename OtherTraits>
+ friend class IntrusiveForwardList;
+
+ template <typename OtherT1, typename OtherT2, typename OtherTraits>
+ friend typename std::enable_if<std::is_same<const OtherT1, const OtherT2>::value, bool>::type
+ operator==(const IntrusiveForwardListIterator<OtherT1, OtherTraits>& lhs,
+ const IntrusiveForwardListIterator<OtherT2, OtherTraits>& rhs);
+};
+
+template <typename T, typename OtherT, typename HookTraits>
+typename std::enable_if<std::is_same<const T, const OtherT>::value, bool>::type operator==(
+ const IntrusiveForwardListIterator<T, HookTraits>& lhs,
+ const IntrusiveForwardListIterator<OtherT, HookTraits>& rhs) {
+ return lhs.hook_ == rhs.hook_;
+}
+
+template <typename T, typename OtherT, typename HookTraits>
+typename std::enable_if<std::is_same<const T, const OtherT>::value, bool>::type operator!=(
+ const IntrusiveForwardListIterator<T, HookTraits>& lhs,
+ const IntrusiveForwardListIterator<OtherT, HookTraits>& rhs) {
+ return !(lhs == rhs);
+}
+
+// Intrusive version of std::forward_list<>. See also slist<> in Boost.Intrusive.
+//
+// This class template provides the same interface as std::forward_list<> as long
+// as the functions are meaningful for an intrusive container; this excludes emplace
+// functions and functions taking an std::initializer_list<> as the container does
+// not construct elements.
+template <typename T, typename HookTraits>
+class IntrusiveForwardList {
+ public:
+ typedef HookTraits hook_traits;
+ typedef T value_type;
+ typedef T& reference;
+ typedef const T& const_reference;
+ typedef T* pointer;
+ typedef const T* const_pointer;
+ typedef IntrusiveForwardListIterator< T, hook_traits> iterator;
+ typedef IntrusiveForwardListIterator<const T, hook_traits> const_iterator;
+
+ // Construct/copy/destroy.
+ IntrusiveForwardList() = default;
+ template <typename InputIterator>
+ IntrusiveForwardList(InputIterator first, InputIterator last) : IntrusiveForwardList() {
+ insert_after(before_begin(), first, last);
+ }
+ IntrusiveForwardList(IntrusiveForwardList&& src) : first_(src.first_.next_hook) {
+ src.first_.next_hook = nullptr;
+ }
+ IntrusiveForwardList& operator=(const IntrusiveForwardList& src) = delete;
+ IntrusiveForwardList& operator=(IntrusiveForwardList&& src) {
+ IntrusiveForwardList tmp(std::move(src));
+ tmp.swap(*this);
+ return *this;
+ }
+ ~IntrusiveForwardList() = default;
+
+ // Iterators.
+ iterator before_begin() { return iterator(&first_); }
+ const_iterator before_begin() const { return const_iterator(&first_); }
+ iterator begin() { return iterator(first_.next_hook); }
+ const_iterator begin() const { return const_iterator(first_.next_hook); }
+ iterator end() { return iterator(nullptr); }
+ const_iterator end() const { return const_iterator(nullptr); }
+ const_iterator cbefore_begin() const { return const_iterator(&first_); }
+ const_iterator cbegin() const { return const_iterator(first_.next_hook); }
+ const_iterator cend() const { return const_iterator(nullptr); }
+
+ // Capacity.
+ bool empty() const { return begin() == end(); }
+ size_t max_size() { return static_cast<size_t>(-1); }
+
+ // Element access.
+ reference front() { return *begin(); }
+ const_reference front() const { return *begin(); }
+
+ // Modifiers.
+ template <typename InputIterator>
+ void assign(InputIterator first, InputIterator last) {
+ IntrusiveForwardList tmp(first, last);
+ tmp.swap(*this);
+ }
+ void push_front(value_type& value) {
+ insert_after(before_begin(), value);
+ }
+ void pop_front() {
+ DCHECK(!empty());
+ erase_after(before_begin());
+ }
+ iterator insert_after(const_iterator position, value_type& value) {
+ const IntrusiveForwardListHook* new_hook = hook_traits::GetHook(&value);
+ new_hook->next_hook = position.hook_->next_hook;
+ position.hook_->next_hook = new_hook;
+ return iterator(new_hook);
+ }
+ template <typename InputIterator>
+ iterator insert_after(const_iterator position, InputIterator first, InputIterator last) {
+ while (first != last) {
+ position = insert_after(position, *first++);
+ }
+ return iterator(position.hook_);
+ }
+ iterator erase_after(const_iterator position) {
+ const_iterator last = position;
+ std::advance(last, 2);
+ return erase_after(position, last);
+ }
+ iterator erase_after(const_iterator position, const_iterator last) {
+ DCHECK(position != last);
+ position.hook_->next_hook = last.hook_;
+ return iterator(last.hook_);
+ }
+ void swap(IntrusiveForwardList& other) {
+ std::swap(first_.next_hook, other.first_.next_hook);
+ }
+ void clear() {
+ first_.next_hook = nullptr;
+ }
+
+ // Operations.
+ void splice_after(const_iterator position, IntrusiveForwardList& src) {
+ DCHECK(position != end());
+ splice_after(position, src, src.before_begin(), src.end());
+ }
+ void splice_after(const_iterator position, IntrusiveForwardList&& src) {
+ splice_after(position, src); // Use l-value overload.
+ }
+ // Splice the element after `i`.
+ void splice_after(const_iterator position, IntrusiveForwardList& src, const_iterator i) {
+ const_iterator last = i;
+ std::advance(last, 2);
+ splice_after(position, src, i, last);
+ }
+ // Splice the element after `i`.
+ void splice_after(const_iterator position, IntrusiveForwardList&& src, const_iterator i) {
+ splice_after(position, src, i); // Use l-value overload.
+ }
+ // Splice elements between `first` and `last`, i.e. open range `(first, last)`.
+ void splice_after(const_iterator position,
+ IntrusiveForwardList& src,
+ const_iterator first,
+ const_iterator last) {
+ DCHECK(position != end());
+ DCHECK(first != last);
+ if (++const_iterator(first) == last) {
+ // Nothing to do.
+ return;
+ }
+ // If position is just before end() and last is src.end(), we can finish this quickly.
+ if (++const_iterator(position) == end() && last == src.end()) {
+ position.hook_->next_hook = first.hook_->next_hook;
+ first.hook_->next_hook = nullptr;
+ return;
+ }
+ // Otherwise we need to find the position before last to fix up the hook.
+ const_iterator before_last = first;
+ while (++const_iterator(before_last) != last) {
+ ++before_last;
+ }
+ // Detach (first, last).
+ const IntrusiveForwardListHook* first_taken = first.hook_->next_hook;
+ first.hook_->next_hook = last.hook_;
+ // Attach the sequence to the new position.
+ before_last.hook_->next_hook = position.hook_->next_hook;
+ position.hook_->next_hook = first_taken;
+ }
+ // Splice elements between `first` and `last`, i.e. open range `(first, last)`.
+ void splice_after(const_iterator position,
+ IntrusiveForwardList&& src,
+ const_iterator first,
+ const_iterator last) {
+ splice_after(position, src, first, last); // Use l-value overload.
+ }
+ void remove(const value_type& value) {
+ remove_if([value](const value_type& v) { return value == v; });
+ }
+ template <typename Predicate>
+ void remove_if(Predicate pred) {
+ iterator prev = before_begin();
+ for (iterator current = begin(); current != end(); ++current) {
+ if (pred(*current)) {
+ erase_after(prev);
+ current = prev;
+ } else {
+ prev = current;
+ }
+ }
+ }
+ void unique() {
+ unique(std::equal_to<value_type>());
+ }
+ template <typename BinaryPredicate>
+ void unique(BinaryPredicate pred) {
+ if (!empty()) {
+ iterator prev = begin();
+ iterator current = prev;
+ ++current;
+ for (; current != end(); ++current) {
+ if (pred(*prev, *current)) {
+ erase_after(prev);
+ current = prev;
+ } else {
+ prev = current;
+ }
+ }
+ }
+ }
+ void merge(IntrusiveForwardList& other) {
+ merge(other, std::less<value_type>());
+ }
+ void merge(IntrusiveForwardList&& other) {
+ merge(other); // Use l-value overload.
+ }
+ template <typename Compare>
+ void merge(IntrusiveForwardList& other, Compare cmp) {
+ iterator prev = before_begin();
+ iterator current = begin();
+ iterator other_prev = other.before_begin();
+ iterator other_current = other.begin();
+ while (current != end() && other_current != other.end()) {
+ if (cmp(*other_current, *current)) {
+ ++other_current;
+ splice_after(prev, other, other_prev);
+ ++prev;
+ } else {
+ prev = current;
+ ++current;
+ }
+ DCHECK(++const_iterator(prev) == current);
+ DCHECK(++const_iterator(other_prev) == other_current);
+ }
+ splice_after(prev, other);
+ }
+ template <typename Compare>
+ void merge(IntrusiveForwardList&& other, Compare cmp) {
+ merge(other, cmp); // Use l-value overload.
+ }
+ void sort() {
+ sort(std::less<value_type>());
+ }
+ template <typename Compare>
+ void sort(Compare cmp) {
+ size_t n = std::distance(begin(), end());
+ if (n >= 2u) {
+ const_iterator middle = before_begin();
+ std::advance(middle, n / 2u);
+ IntrusiveForwardList second_half;
+ second_half.splice_after(second_half.before_begin(), *this, middle, end());
+ sort(cmp);
+ second_half.sort(cmp);
+ merge(second_half, cmp);
+ }
+ }
+ void reverse() {
+ IntrusiveForwardList reversed;
+ while (!empty()) {
+ value_type& value = front();
+ erase_after(before_begin());
+ reversed.insert_after(reversed.before_begin(), value);
+ }
+ reversed.swap(*this);
+ }
+
+ // Extensions.
+ bool HasExactlyOneElement() const {
+ return !empty() && ++begin() == end();
+ }
+ size_t SizeSlow() const {
+ return std::distance(begin(), end());
+ }
+ bool ContainsNode(const_reference node) const {
+ for (auto&& n : *this) {
+ if (std::addressof(n) == std::addressof(node)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ private:
+ static IntrusiveForwardListHook* ModifiableHook(const IntrusiveForwardListHook* hook) {
+ return const_cast<IntrusiveForwardListHook*>(hook);
+ }
+
+ IntrusiveForwardListHook first_;
+};
+
+template <typename T, typename HookTraits>
+void swap(IntrusiveForwardList<T, HookTraits>& lhs, IntrusiveForwardList<T, HookTraits>& rhs) {
+ lhs.swap(rhs);
+}
+
+template <typename T, typename HookTraits>
+bool operator==(const IntrusiveForwardList<T, HookTraits>& lhs,
+ const IntrusiveForwardList<T, HookTraits>& rhs) {
+ auto lit = lhs.begin();
+ auto rit = rhs.begin();
+ for (; lit != lhs.end() && rit != rhs.end(); ++lit, ++rit) {
+ if (*lit != *rit) {
+ return false;
+ }
+ }
+ return lit == lhs.end() && rit == rhs.end();
+}
+
+template <typename T, typename HookTraits>
+bool operator!=(const IntrusiveForwardList<T, HookTraits>& lhs,
+ const IntrusiveForwardList<T, HookTraits>& rhs) {
+ return !(lhs == rhs);
+}
+
+template <typename T, typename HookTraits>
+bool operator<(const IntrusiveForwardList<T, HookTraits>& lhs,
+ const IntrusiveForwardList<T, HookTraits>& rhs) {
+ return std::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
+}
+
+template <typename T, typename HookTraits>
+bool operator>(const IntrusiveForwardList<T, HookTraits>& lhs,
+ const IntrusiveForwardList<T, HookTraits>& rhs) {
+ return rhs < lhs;
+}
+
+template <typename T, typename HookTraits>
+bool operator<=(const IntrusiveForwardList<T, HookTraits>& lhs,
+ const IntrusiveForwardList<T, HookTraits>& rhs) {
+ return !(rhs < lhs);
+}
+
+template <typename T, typename HookTraits>
+bool operator>=(const IntrusiveForwardList<T, HookTraits>& lhs,
+ const IntrusiveForwardList<T, HookTraits>& rhs) {
+ return !(lhs < rhs);
+}
+
+template <typename T, IntrusiveForwardListHook T::* NextPtr>
+class IntrusiveForwardListMemberHook {
+ public:
+ static const IntrusiveForwardListHook* GetHook(const T* value) {
+ return &(value->*NextPtr);
+ }
+
+ static T* GetValue(const IntrusiveForwardListHook* hook) {
+ return reinterpret_cast<T*>(
+ reinterpret_cast<uintptr_t>(hook) - OFFSETOF_MEMBERPTR(T, NextPtr));
+ }
+};
+
+} // namespace art
+
+#endif // ART_COMPILER_UTILS_INTRUSIVE_FORWARD_LIST_H_
--- /dev/null
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <algorithm>
+#include <forward_list>
+#include <vector>
+
+#include "gtest/gtest.h"
+#include "intrusive_forward_list.h"
+
+namespace art {
+
+struct IFLTestValue {
+ // Deliberately not explicit.
+ IFLTestValue(int v) : hook(), value(v) { } // NOLINT(runtime/explicit)
+
+ IntrusiveForwardListHook hook;
+ int value;
+};
+
+bool operator==(const IFLTestValue& lhs, const IFLTestValue& rhs) {
+ return lhs.value == rhs.value;
+}
+
+bool operator<(const IFLTestValue& lhs, const IFLTestValue& rhs) {
+ return lhs.value < rhs.value;
+}
+
+#define ASSERT_LISTS_EQUAL(expected, value) \
+ do { \
+ ASSERT_EQ(expected.empty(), value.empty()); \
+ ASSERT_EQ(std::distance(expected.begin(), expected.end()), \
+ std::distance(value.begin(), value.end())); \
+ ASSERT_TRUE(std::equal(expected.begin(), expected.end(), value.begin())); \
+ } while (false)
+
+TEST(IntrusiveForwardList, IteratorToConstIterator) {
+ IntrusiveForwardList<IFLTestValue> ifl;
+ IntrusiveForwardList<IFLTestValue>::iterator begin = ifl.begin();
+ IntrusiveForwardList<IFLTestValue>::const_iterator cbegin = ifl.cbegin();
+ IntrusiveForwardList<IFLTestValue>::const_iterator converted_begin = begin;
+ ASSERT_TRUE(converted_begin == cbegin);
+}
+
+TEST(IntrusiveForwardList, IteratorOperators) {
+ IntrusiveForwardList<IFLTestValue> ifl;
+ ASSERT_TRUE(ifl.begin() == ifl.cbegin());
+ ASSERT_FALSE(ifl.begin() != ifl.cbegin());
+ ASSERT_TRUE(ifl.end() == ifl.cend());
+ ASSERT_FALSE(ifl.end() != ifl.cend());
+
+ ASSERT_TRUE(ifl.begin() == ifl.end()); // Empty.
+ ASSERT_FALSE(ifl.begin() != ifl.end()); // Empty.
+
+ IFLTestValue value(1);
+ ifl.insert_after(ifl.cbefore_begin(), value);
+
+ ASSERT_FALSE(ifl.begin() == ifl.end()); // Not empty.
+ ASSERT_TRUE(ifl.begin() != ifl.end()); // Not empty.
+}
+
+TEST(IntrusiveForwardList, ConstructRange) {
+ std::forward_list<int> ref({ 1, 2, 7 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+}
+
+TEST(IntrusiveForwardList, Assign) {
+ std::forward_list<int> ref1({ 2, 8, 5 });
+ std::vector<IFLTestValue> storage1(ref1.begin(), ref1.end());
+ IntrusiveForwardList<IFLTestValue> ifl;
+ ifl.assign(storage1.begin(), storage1.end());
+ ASSERT_LISTS_EQUAL(ref1, ifl);
+ std::forward_list<int> ref2({ 7, 1, 3 });
+ std::vector<IFLTestValue> storage2(ref2.begin(), ref2.end());
+ ifl.assign(storage2.begin(), storage2.end());
+ ASSERT_LISTS_EQUAL(ref2, ifl);
+}
+
+TEST(IntrusiveForwardList, PushPop) {
+ IFLTestValue value3(3);
+ IFLTestValue value7(7);
+ std::forward_list<int> ref;
+ IntrusiveForwardList<IFLTestValue> ifl;
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ref.push_front(3);
+ ifl.push_front(value3);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(3, ifl.front());
+ ref.push_front(7);
+ ifl.push_front(value7);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(7, ifl.front());
+ ref.pop_front();
+ ifl.pop_front();
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(3, ifl.front());
+ ref.pop_front();
+ ifl.pop_front();
+ ASSERT_LISTS_EQUAL(ref, ifl);
+}
+
+TEST(IntrusiveForwardList, InsertAfter1) {
+ IFLTestValue value4(4);
+ IFLTestValue value8(8);
+ IFLTestValue value5(5);
+ IFLTestValue value3(3);
+ std::forward_list<int> ref;
+ IntrusiveForwardList<IFLTestValue> ifl;
+
+ auto ref_it = ref.insert_after(ref.before_begin(), 4);
+ auto ifl_it = ifl.insert_after(ifl.before_begin(), value4);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(*ref_it, *ifl_it);
+ CHECK(ref_it == ref.begin());
+ ASSERT_TRUE(ifl_it == ifl.begin());
+
+ ref_it = ref.insert_after(ref.begin(), 8);
+ ifl_it = ifl.insert_after(ifl.begin(), value8);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(*ref_it, *ifl_it);
+ CHECK(ref_it != ref.end());
+ ASSERT_TRUE(ifl_it != ifl.end());
+ CHECK(++ref_it == ref.end());
+ ASSERT_TRUE(++ifl_it == ifl.end());
+
+ ref_it = ref.insert_after(ref.begin(), 5);
+ ifl_it = ifl.insert_after(ifl.begin(), value5);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(*ref_it, *ifl_it);
+
+ ref_it = ref.insert_after(ref_it, 3);
+ ifl_it = ifl.insert_after(ifl_it, value3);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(*ref_it, *ifl_it);
+}
+
+TEST(IntrusiveForwardList, InsertAfter2) {
+ std::forward_list<int> ref;
+ IntrusiveForwardList<IFLTestValue> ifl;
+
+ auto ref_it = ref.insert_after(ref.before_begin(), { 2, 8, 5 });
+ std::vector<IFLTestValue> storage1({ { 2 }, { 8 }, { 5 } });
+ auto ifl_it = ifl.insert_after(ifl.before_begin(), storage1.begin(), storage1.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(*ref_it, *ifl_it);
+
+ std::vector<IFLTestValue> storage2({ { 7 }, { 2 } });
+ ref_it = ref.insert_after(ref.begin(), { 7, 2 });
+ ifl_it = ifl.insert_after(ifl.begin(), storage2.begin(), storage2.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(*ref_it, *ifl_it);
+
+ std::vector<IFLTestValue> storage3({ { 1 }, { 3 }, { 4 }, { 9 } });
+ ref_it = ref.begin();
+ ifl_it = ifl.begin();
+ std::advance(ref_it, std::distance(ref.begin(), ref.end()) - 1);
+ std::advance(ifl_it, std::distance(ifl.begin(), ifl.end()) - 1);
+ ref_it = ref.insert_after(ref_it, { 1, 3, 4, 9 });
+ ifl_it = ifl.insert_after(ifl_it, storage3.begin(), storage3.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+}
+
+TEST(IntrusiveForwardList, EraseAfter1) {
+ std::forward_list<int> ref({ 1, 2, 7, 4, 5 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 5);
+
+ auto ref_it = ref.begin();
+ auto ifl_it = ifl.begin();
+ std::advance(ref_it, 2);
+ std::advance(ifl_it, 2);
+ ref_it = ref.erase_after(ref_it);
+ ifl_it = ifl.erase_after(ifl_it);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 4);
+ CHECK(ref_it != ref.end());
+ ASSERT_TRUE(ifl_it != ifl.end());
+ CHECK(++ref_it == ref.end());
+ ASSERT_TRUE(++ifl_it == ifl.end());
+
+ ref_it = ref.begin();
+ ifl_it = ifl.begin();
+ std::advance(ref_it, 2);
+ std::advance(ifl_it, 2);
+ ref_it = ref.erase_after(ref_it);
+ ifl_it = ifl.erase_after(ifl_it);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 3);
+ CHECK(ref_it == ref.end());
+ ASSERT_TRUE(ifl_it == ifl.end());
+
+ ref_it = ref.erase_after(ref.begin());
+ ifl_it = ifl.erase_after(ifl.begin());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 2);
+ CHECK(ref_it != ref.end());
+ ASSERT_TRUE(ifl_it != ifl.end());
+ CHECK(++ref_it == ref.end());
+ ASSERT_TRUE(++ifl_it == ifl.end());
+
+ ref_it = ref.erase_after(ref.before_begin());
+ ifl_it = ifl.erase_after(ifl.before_begin());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 1);
+ CHECK(ref_it == ref.begin());
+ ASSERT_TRUE(ifl_it == ifl.begin());
+
+ ref_it = ref.erase_after(ref.before_begin());
+ ifl_it = ifl.erase_after(ifl.before_begin());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 0);
+ CHECK(ref_it == ref.begin());
+ ASSERT_TRUE(ifl_it == ifl.begin());
+}
+
+TEST(IntrusiveForwardList, EraseAfter2) {
+ std::forward_list<int> ref({ 1, 2, 7, 4, 5, 3, 2, 8, 9 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 9);
+
+ auto ref_it = ref.begin();
+ auto ifl_it = ifl.begin();
+ std::advance(ref_it, 3);
+ std::advance(ifl_it, 3);
+ ref_it = ref.erase_after(ref.begin(), ref_it);
+ ifl_it = ifl.erase_after(ifl.begin(), ifl_it);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ASSERT_EQ(std::distance(ref.begin(), ref_it), std::distance(ifl.begin(), ifl_it));
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 7);
+
+ ref_it = ref.erase_after(ref_it, ref.end());
+ ifl_it = ifl.erase_after(ifl_it, ifl.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK(ref_it == ref.end());
+ ASSERT_TRUE(ifl_it == ifl.end());
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 2);
+
+ ref_it = ref.erase_after(ref.before_begin(), ref.end());
+ ifl_it = ifl.erase_after(ifl.before_begin(), ifl.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK(ref_it == ref.end());
+ ASSERT_TRUE(ifl_it == ifl.end());
+ CHECK_EQ(std::distance(ref.begin(), ref.end()), 0);
+}
+
+TEST(IntrusiveForwardList, SwapClear) {
+ std::forward_list<int> ref1({ 1, 2, 7 });
+ std::vector<IFLTestValue> storage1(ref1.begin(), ref1.end());
+ IntrusiveForwardList<IFLTestValue> ifl1(storage1.begin(), storage1.end());
+ std::forward_list<int> ref2({ 3, 8, 6 });
+ std::vector<IFLTestValue> storage2(ref2.begin(), ref2.end());
+ IntrusiveForwardList<IFLTestValue> ifl2(storage2.begin(), storage2.end());
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+ ref1.swap(ref2);
+ ifl1.swap(ifl2);
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+ ref1.clear();
+ ifl1.clear();
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+ swap(ref1, ref2);
+ swap(ifl1, ifl2);
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+ ref1.clear();
+ ifl1.clear();
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+}
+
+TEST(IntrusiveForwardList, SpliceAfter) {
+ std::forward_list<int> ref1({ 3, 1, 2, 7, 4, 5, 4, 8, 7 });
+ std::forward_list<int> ref2;
+ std::vector<IFLTestValue> storage(ref1.begin(), ref1.end());
+ IntrusiveForwardList<IFLTestValue> ifl1(storage.begin(), storage.end());
+ IntrusiveForwardList<IFLTestValue> ifl2;
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ // Move everything to ref2/ifl2.
+ ref2.splice_after(ref2.before_begin(), ref1);
+ ifl2.splice_after(ifl2.before_begin(), ifl1);
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ // Move first element (3) to ref1/ifl1.
+ ref1.splice_after(ref1.before_begin(), ref2, ref2.before_begin());
+ ifl1.splice_after(ifl1.before_begin(), ifl2, ifl2.before_begin());
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ // Move second element (2) to ref1/ifl1 after the first element (3).
+ ref1.splice_after(ref1.begin(), ref2, ref2.begin());
+ ifl1.splice_after(ifl1.begin(), ifl2, ifl2.begin());
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ // Move everything from ref2/ifl2 between the 2 elements now in ref1/ifl1.
+ ref1.splice_after(ref1.begin(), ref2);
+ ifl1.splice_after(ifl1.begin(), ifl2);
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ std::forward_list<int> check({ 3, 1, 7, 4, 5, 4, 8, 7, 2 });
+ ASSERT_LISTS_EQUAL(check, ifl1);
+ ASSERT_TRUE(ifl2.empty());
+
+ // Empty splice_after().
+ ref2.splice_after(
+ ref2.before_begin(), ref1, ref1.before_begin(), ref1.begin());
+ ifl2.splice_after(ifl2.before_begin(), ifl1, ifl1.before_begin(), ifl1.begin());
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ // Move { 1, 7 } to ref2/ifl2.
+ auto ref_it = ref1.begin();
+ auto ifl_it = ifl1.begin();
+ std::advance(ref_it, 3);
+ std::advance(ifl_it, 3);
+ ref2.splice_after(ref2.before_begin(), ref1, ref1.begin(), ref_it);
+ ifl2.splice_after(ifl2.before_begin(), ifl1, ifl1.begin(), ifl_it);
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ // Move { 8, 7, 2 } to the beginning of ref1/ifl1.
+ ref_it = ref1.begin();
+ ifl_it = ifl1.begin();
+ std::advance(ref_it, 3);
+ std::advance(ifl_it, 3);
+ ref1.splice_after(ref1.before_begin(), ref1, ref_it, ref1.end());
+ ifl1.splice_after(ifl1.before_begin(), ifl1, ifl_it, ifl1.end());
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+
+ check.assign({ 8, 7, 2, 3, 4, 5, 4 });
+ ASSERT_LISTS_EQUAL(check, ifl1);
+ check.assign({ 1, 7 });
+ ASSERT_LISTS_EQUAL(check, ifl2);
+
+ // Move all but the first element to ref2/ifl2.
+ ref_it = ref2.begin();
+ ifl_it = ifl2.begin();
+ std::advance(ref_it, 1);
+ std::advance(ifl_it, 1);
+ ref2.splice_after(ref_it, ref1, ref1.begin(), ref1.end());
+ ifl2.splice_after(ifl_it, ifl1, ifl1.begin(), ifl1.end());
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+
+ check.assign({8});
+ ASSERT_LISTS_EQUAL(check, ifl1);
+ check.assign({ 1, 7, 7, 2, 3, 4, 5, 4 });
+ ASSERT_LISTS_EQUAL(check, ifl2);
+}
+
+TEST(IntrusiveForwardList, Remove) {
+ std::forward_list<int> ref({ 3, 1, 2, 7, 4, 5, 4, 8, 7 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ref.remove(1);
+ ifl.remove(1);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ref.remove(4);
+ ifl.remove(4);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ auto odd = [](IFLTestValue value) { return (value.value & 1) != 0; }; // NOLINT(readability/braces)
+ ref.remove_if(odd);
+ ifl.remove_if(odd);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ auto all = [](IFLTestValue value ATTRIBUTE_UNUSED) { return true; }; // NOLINT(readability/braces)
+ ref.remove_if(all);
+ ifl.remove_if(all);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+}
+
+TEST(IntrusiveForwardList, Unique) {
+ std::forward_list<int> ref({ 3, 1, 1, 2, 3, 3, 7, 7, 4, 4, 5, 7 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ ref.unique();
+ ifl.unique();
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ std::forward_list<int> check({ 3, 1, 2, 3, 7, 4, 5, 7 });
+ ASSERT_LISTS_EQUAL(check, ifl);
+
+ auto bin_pred = [](IFLTestValue lhs, IFLTestValue rhs) {
+ return (lhs.value & ~1) == (rhs.value & ~1);
+ };
+ ref.unique(bin_pred);
+ ifl.unique(bin_pred);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ check.assign({ 3, 1, 2, 7, 4, 7 });
+ ASSERT_LISTS_EQUAL(check, ifl);
+}
+
+TEST(IntrusiveForwardList, Merge) {
+ std::forward_list<int> ref1({ 1, 4, 8, 8, 12 });
+ std::vector<IFLTestValue> storage1(ref1.begin(), ref1.end());
+ IntrusiveForwardList<IFLTestValue> ifl1(storage1.begin(), storage1.end());
+ std::forward_list<int> ref2({ 3, 5, 6, 7, 9 });
+ std::vector<IFLTestValue> storage2(ref2.begin(), ref2.end());
+ IntrusiveForwardList<IFLTestValue> ifl2(storage2.begin(), storage2.end());
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+ CHECK(std::is_sorted(ref1.begin(), ref1.end()));
+ CHECK(std::is_sorted(ref2.begin(), ref2.end()));
+ ref1.merge(ref2);
+ ifl1.merge(ifl2);
+ ASSERT_LISTS_EQUAL(ref1, ifl1);
+ ASSERT_LISTS_EQUAL(ref2, ifl2);
+ CHECK(ref2.empty());
+ std::forward_list<int> check({ 1, 3, 4, 5, 6, 7, 8, 8, 9, 12 });
+ ASSERT_LISTS_EQUAL(check, ifl1);
+}
+
+TEST(IntrusiveForwardList, Sort1) {
+ std::forward_list<int> ref({ 2, 9, 8, 3, 7, 4, 1, 5, 3, 0 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK(!std::is_sorted(ref.begin(), ref.end()));
+ ref.sort();
+ ifl.sort();
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ std::forward_list<int> check({ 0, 1, 2, 3, 3, 4, 5, 7, 8, 9 });
+ ASSERT_LISTS_EQUAL(check, ifl);
+}
+
+TEST(IntrusiveForwardList, Sort2) {
+ std::forward_list<int> ref({ 2, 9, 8, 3, 7, 4, 1, 5, 3, 0 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ auto cmp = [](IFLTestValue lhs, IFLTestValue rhs) {
+ return (lhs.value & ~1) < (rhs.value & ~1);
+ };
+ CHECK(!std::is_sorted(ref.begin(), ref.end(), cmp));
+ ref.sort(cmp);
+ ifl.sort(cmp);
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ std::forward_list<int> check({ 1, 0, 2, 3, 3, 4, 5, 7, 9, 8 });
+ ASSERT_LISTS_EQUAL(check, ifl);
+}
+
+TEST(IntrusiveForwardList, Reverse) {
+ std::forward_list<int> ref({ 8, 3, 5, 4, 1, 3 });
+ std::vector<IFLTestValue> storage(ref.begin(), ref.end());
+ IntrusiveForwardList<IFLTestValue> ifl(storage.begin(), storage.end());
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ CHECK(!std::is_sorted(ref.begin(), ref.end()));
+ ref.reverse();
+ ifl.reverse();
+ ASSERT_LISTS_EQUAL(ref, ifl);
+ std::forward_list<int> check({ 3, 1, 4, 5, 3, 8 });
+ ASSERT_LISTS_EQUAL(check, ifl);
+}
+
+} // namespace art
#define SIZEOF_MEMBER(t, f) sizeof((reinterpret_cast<t*>(4096))->f)
#define OFFSETOF_MEMBER(t, f) \
- (reinterpret_cast<const char*>(&reinterpret_cast<t*>(16)->f) - reinterpret_cast<const char*>(16)) // NOLINT
+ (reinterpret_cast<uintptr_t>(&reinterpret_cast<t*>(16)->f) - static_cast<uintptr_t>(16u)) // NOLINT
-#define OFFSETOF_VOLATILE_MEMBER(t, f) \
- (reinterpret_cast<volatile char*>(&reinterpret_cast<t*>(16)->f) - reinterpret_cast<volatile char*>(16)) // NOLINT
+#define OFFSETOF_MEMBERPTR(t, f) \
+ (reinterpret_cast<uintptr_t>(&(reinterpret_cast<t*>(16)->*f)) - static_cast<uintptr_t>(16)) // NOLINT
#define PACKED(x) __attribute__ ((__aligned__(x), __packed__))
// Test the offset computation of JNIEnvExt offsets. b/26071368.
TEST_F(JniInternalTest, JNIEnvExtOffsets) {
EXPECT_EQ(OFFSETOF_MEMBER(JNIEnvExt, local_ref_cookie),
- JNIEnvExt::LocalRefCookieOffset(sizeof(void*)).Int32Value());
+ JNIEnvExt::LocalRefCookieOffset(sizeof(void*)).Uint32Value());
- EXPECT_EQ(OFFSETOF_MEMBER(JNIEnvExt, self), JNIEnvExt::SelfOffset(sizeof(void*)).Int32Value());
+ EXPECT_EQ(OFFSETOF_MEMBER(JNIEnvExt, self), JNIEnvExt::SelfOffset(sizeof(void*)).Uint32Value());
// segment_state_ is private in the IndirectReferenceTable. So this test isn't as good as we'd
// hope it to be.
- int32_t segment_state_now =
+ uint32_t segment_state_now =
OFFSETOF_MEMBER(JNIEnvExt, locals) +
- IndirectReferenceTable::SegmentStateOffset(sizeof(void*)).Int32Value();
- int32_t segment_state_computed = JNIEnvExt::SegmentStateOffset(sizeof(void*)).Int32Value();
+ IndirectReferenceTable::SegmentStateOffset(sizeof(void*)).Uint32Value();
+ uint32_t segment_state_computed = JNIEnvExt::SegmentStateOffset(sizeof(void*)).Uint32Value();
EXPECT_EQ(segment_state_now, segment_state_computed);
}
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