diff options
Diffstat (limited to 'deps/v8/src/maglev/maglev-regalloc.h')
| -rw-r--r-- | deps/v8/src/maglev/maglev-regalloc.h | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/deps/v8/src/maglev/maglev-regalloc.h b/deps/v8/src/maglev/maglev-regalloc.h index 120f5cfa6d..e02b914424 100644 --- a/deps/v8/src/maglev/maglev-regalloc.h +++ b/deps/v8/src/maglev/maglev-regalloc.h @@ -124,8 +124,13 @@ class RegisterFrameState { bool is_blocked(RegisterT reg) { return blocked_.has(reg); } void clear_blocked() { blocked_ = kEmptyRegList; } - compiler::AllocatedOperand ChooseInputRegister(ValueNode* node); - compiler::AllocatedOperand AllocateRegister(ValueNode* node); + compiler::InstructionOperand TryChooseInputRegister( + ValueNode* node, const compiler::InstructionOperand& hint = + compiler::InstructionOperand()); + compiler::InstructionOperand TryChooseUnblockedInputRegister(ValueNode* node); + compiler::AllocatedOperand AllocateRegister( + ValueNode* node, const compiler::InstructionOperand& hint = + compiler::InstructionOperand()); private: ValueNode* values_[RegisterT::kNumRegisters]; @@ -165,8 +170,6 @@ class StraightForwardRegisterAllocator { void UpdateUse(Input* input) { return UpdateUse(input->node(), input); } void UpdateUse(ValueNode* node, InputLocation* input_location); - void UpdateUse(const EagerDeoptInfo& deopt_info); - void UpdateUse(const LazyDeoptInfo& deopt_info); void MarkAsClobbered(ValueNode* node, const compiler::AllocatedOperand& location); @@ -174,8 +177,10 @@ class StraightForwardRegisterAllocator { void AllocateControlNode(ControlNode* node, BasicBlock* block); void AllocateNode(Node* node); void AllocateNodeResult(ValueNode* node); + void AllocateEagerDeopt(const EagerDeoptInfo& deopt_info); + void AllocateLazyDeopt(const LazyDeoptInfo& deopt_info); void AssignFixedInput(Input& input); - void AssignArbitraryRegisterInput(Input& input); + void AssignArbitraryRegisterInput(NodeBase* result_node, Input& input); void AssignAnyInput(Input& input); void AssignInputs(NodeBase* node); template <typename RegisterT> @@ -186,6 +191,8 @@ class StraightForwardRegisterAllocator { void AssignArbitraryTemporaries(RegisterFrameState<RegisterT>& registers, NodeBase* node); void AssignArbitraryTemporaries(NodeBase* node); + template <typename RegisterT> + void SetLoopPhiRegisterHint(Phi* phi, RegisterT reg); void TryAllocateToInput(Phi* phi); void VerifyInputs(NodeBase* node); @@ -207,7 +214,8 @@ class StraightForwardRegisterAllocator { void FreeRegistersUsedBy(ValueNode* node); template <typename RegisterT> - RegisterT FreeUnblockedRegister(); + RegisterT FreeUnblockedRegister( + RegListBase<RegisterT> reserved = RegListBase<RegisterT>()); template <typename RegisterT> RegisterT PickRegisterToFree(RegListBase<RegisterT> reserved); @@ -222,8 +230,10 @@ class StraightForwardRegisterAllocator { template <typename RegisterT> void DropRegisterValueAtEnd(RegisterT reg); + bool IsCurrentNodeLastUseOf(ValueNode* node); template <typename RegisterT> - void EnsureFreeRegisterAtEnd(); + void EnsureFreeRegisterAtEnd(const compiler::InstructionOperand& hint = + compiler::InstructionOperand()); compiler::AllocatedOperand AllocateRegisterAtEnd(ValueNode* node); template <typename RegisterT> @@ -232,7 +242,9 @@ class StraightForwardRegisterAllocator { void DropRegisterValue(Register reg); void DropRegisterValue(DoubleRegister reg); - compiler::AllocatedOperand AllocateRegister(ValueNode* node); + compiler::AllocatedOperand AllocateRegister( + ValueNode* node, const compiler::InstructionOperand& hint = + compiler::InstructionOperand()); template <typename RegisterT> compiler::AllocatedOperand ForceAllocate( @@ -249,6 +261,8 @@ class StraightForwardRegisterAllocator { void InitializeRegisterValues(MergePointRegisterState& target_state); #ifdef DEBUG bool IsInRegister(MergePointRegisterState& target_state, ValueNode* incoming); + bool IsForwardReachable(BasicBlock* start_block, NodeIdT first_id, + NodeIdT last_id); #endif void InitializeBranchTargetRegisterValues(ControlNode* source, |