#include <GasMeter.h>

Inheritance diagram for dev::eth::jit::GasMeter:

Collaboration diagram for dev::eth::jit::GasMeter:

Public Member Functions
	GasMeter (IRBuilder &_builder, RuntimeManager &_runtimeManager, evm_mode mode)

void	count (Instruction _inst)
	Count step cost of instruction. More...

void	count (llvm::Value _cost, llvm::Value _jmpBuf=nullptr, llvm::Value *_gasPtr=nullptr)
	Count additional cost. More...

void	countSStore (class Ext &_ext, llvm::Value _index, llvm::Value _newValue)
	Calculate & count gas cost for SSTORE instruction. More...

void	countExp (llvm::Value *_exponent)
	Calculate & count additional gas cost for EXP instruction. More...

void	countLogData (llvm::Value *_dataLength)
	Count gas cost of LOG data. More...

void	countSha3Data (llvm::Value *_dataLength)
	Count gas cost of SHA3 data. More...

void	commitCostBlock ()
	Finalize cost-block by checking gas needed for the block before the block. More...

void	giveBack (llvm::Value *_gas)
	Give back an amount of gas not used by a call. More...

void	countMemory (llvm::Value _additionalMemoryInWords, llvm::Value _jmpBuf, llvm::Value *_gasPtr)
	Generate code that checks the cost of additional memory used by program. More...

void	countCopy (llvm::Value *_copyWords)
	Count addional gas cost for memory copy. More...

Private Member Functions
int64_t	getStepCost (Instruction inst) const

Private Attributes
int64_t	m_blockCost = 0
	Cumulative gas cost of a block of instructions Handle overflow. More...

llvm::CallInst *	m_checkCall = nullptr

llvm::Function *	m_gasCheckFunc = nullptr

RuntimeManager &	m_runtimeManager

evm_mode	m_mode
	EVM compatibility mode. More...

Additional Inherited Members
Protected Member Functions inherited from dev::eth::jit::CompilerHelper
	CompilerHelper (IRBuilder &_builder)

	CompilerHelper (const CompilerHelper &)=delete

CompilerHelper &	operator= (CompilerHelper)=delete

llvm::Module *	getModule ()
	Reference to the IR module being compiled. More...

llvm::Function *	getMainFunction ()
	Reference to the main module function. More...

Protected Attributes inherited from dev::eth::jit::CompilerHelper
IRBuilder &	m_builder
	Reference to parent compiler IR builder. More...

Detailed Description

Definition at line 16 of file GasMeter.h.

Constructor & Destructor Documentation

dev::eth::jit::GasMeter::GasMeter	(	IRBuilder &	_builder,
		RuntimeManager &	_runtimeManager,
		evm_mode	mode
	)

Definition at line 18 of file GasMeter.cpp.

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Member Function Documentation

void dev::eth::jit::GasMeter::commitCostBlock ( )

Finalize cost-block by checking gas needed for the block before the block.

Definition at line 135 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::count ( Instruction _inst )

Count step cost of instruction.

Definition at line 56 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::count	(	llvm::Value *	_cost,
		llvm::Value *	_jmpBuf = `nullptr`,
		llvm::Value *	_gasPtr = `nullptr`
	)

Count additional cost.

Definition at line 67 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::countCopy ( llvm::Value * _copyWords )

Count addional gas cost for memory copy.

Definition at line 160 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::countExp ( llvm::Value * _exponent )

Calculate & count additional gas cost for EXP instruction.

Definition at line 81 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::countLogData ( llvm::Value * _dataLength )

Count gas cost of LOG data.

Definition at line 108 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::countMemory	(	llvm::Value *	_additionalMemoryInWords,
		llvm::Value *	_jmpBuf,
		llvm::Value *	_gasPtr
	)

Generate code that checks the cost of additional memory used by program.

Definition at line 154 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::countSha3Data ( llvm::Value * _dataLength )

Count gas cost of SHA3 data.

Definition at line 116 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::countSStore	(	class Ext &	_ext,
		llvm::Value *	_index,
		llvm::Value *	_newValue
	)

Calculate & count gas cost for SSTORE instruction.

Definition at line 97 of file GasMeter.cpp.

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int64_t dev::eth::jit::GasMeter::getStepCost ( Instruction inst ) const

private

Definition at line 166 of file GasMeter.cpp.

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void dev::eth::jit::GasMeter::giveBack ( llvm::Value * _gas )

Give back an amount of gas not used by a call.

Definition at line 129 of file GasMeter.cpp.

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Member Data Documentation

int64_t dev::eth::jit::GasMeter::m_blockCost = 0

private

Cumulative gas cost of a block of instructions Handle overflow.

Definition at line 56 of file GasMeter.h.

llvm::CallInst* dev::eth::jit::GasMeter::m_checkCall = nullptr

private

Definition at line 58 of file GasMeter.h.

llvm::Function* dev::eth::jit::GasMeter::m_gasCheckFunc = nullptr

private

Definition at line 59 of file GasMeter.h.

evm_mode dev::eth::jit::GasMeter::m_mode

private

EVM compatibility mode.

Definition at line 64 of file GasMeter.h.

RuntimeManager& dev::eth::jit::GasMeter::m_runtimeManager

private

Definition at line 61 of file GasMeter.h.

The documentation for this class was generated from the following files:

src/cpp-ethereum/evmjit/libevmjit/GasMeter.h
src/cpp-ethereum/evmjit/libevmjit/GasMeter.cpp

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation