diff options
Diffstat (limited to 'libevmasm/Assembly.h')
| -rw-r--r-- | libevmasm/Assembly.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/libevmasm/Assembly.h b/libevmasm/Assembly.h index 0d40abcf..451b4ea0 100644 --- a/libevmasm/Assembly.h +++ b/libevmasm/Assembly.h @@ -97,12 +97,28 @@ public: LinkerObject const& assemble() const; bytes const& data(h256 const& _i) const { return m_data.at(_i); } + struct OptimiserSettings + { + bool isCreation = false; + bool runPeephole = false; + bool runDeduplicate = false; + bool runCSE = false; + bool runConstantOptimiser = false; + /// This specifies an estimate on how often each opcode in this assembly will be executed, + /// i.e. use a small value to optimise for size and a large value to optimise for runtime gas usage. + size_t expectedExecutionsPerDeployment = 200; + }; + + /// Execute optimisation passes as defined by @a _settings and return the optimised assembly. + Assembly& optimise(OptimiserSettings _settings); + /// Modify (if @a _enable is set) and return the current assembly such that creation and /// execution gas usage is optimised. @a _isCreation should be true for the top-level assembly. /// @a _runs specifes an estimate on how often each opcode in this assembly will be executed, /// i.e. use a small value to optimise for size and a large value to optimise for runtime. /// If @a _enable is not set, will perform some simple peephole optimizations. Assembly& optimise(bool _enable, bool _isCreation = true, size_t _runs = 200); + Json::Value stream( std::ostream& _out, std::string const& _prefix = "", @@ -113,7 +129,7 @@ public: protected: /// Does the same operations as @a optimise, but should only be applied to a sub and /// returns the replaced tags. - std::map<u256, u256> optimiseInternal(bool _enable, bool _isCreation, size_t _runs); + std::map<u256, u256> optimiseInternal(OptimiserSettings _settings); unsigned bytesRequired(unsigned subTagSize) const; |