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31 lines
552 B
31 lines
552 B
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#pragma once
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#include <llvm/IR/IRBuilder.h>
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#include <libevmface/Instruction.h>
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namespace evmcc
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{
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class GasMeter
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{
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public:
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GasMeter(llvm::IRBuilder<>& _builder, llvm::Module* module);
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GasMeter(const GasMeter&) = delete;
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void operator=(GasMeter) = delete;
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void check(dev::eth::Instruction _inst);
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private:
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/// Cumulative gas cost of a block of instructions
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/// @TODO Handle overflow
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uint64_t m_blockCost = 0;
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llvm::IRBuilder<>& m_builder;
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llvm::CallInst* m_checkCall;
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llvm::GlobalVariable* m_gas;
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llvm::Function* m_gasCheckFunc;
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};
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}
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