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-rw-r--r--libevmasm/Assembly.cpp4
-rw-r--r--libevmasm/ConstantOptimiser.cpp3
-rw-r--r--libevmasm/ConstantOptimiser.h2
3 files changed, 4 insertions, 5 deletions
diff --git a/libevmasm/Assembly.cpp b/libevmasm/Assembly.cpp
index 28ae9577..e49e675d 100644
--- a/libevmasm/Assembly.cpp
+++ b/libevmasm/Assembly.cpp
@@ -617,8 +617,8 @@ LinkerObject const& Assembly::assemble() const
}
if (!m_subs.empty() || !m_data.empty() || !m_auxiliaryData.empty())
- // Append a STOP just to be sure.
- ret.bytecode.push_back(0);
+ // Append an INVALID here to help tests find miscompilation.
+ ret.bytecode.push_back(byte(Instruction::INVALID));
for (size_t i = 0; i < m_subs.size(); ++i)
{
diff --git a/libevmasm/ConstantOptimiser.cpp b/libevmasm/ConstantOptimiser.cpp
index d0b6843c..07ece12c 100644
--- a/libevmasm/ConstantOptimiser.cpp
+++ b/libevmasm/ConstantOptimiser.cpp
@@ -93,6 +93,7 @@ bigint ConstantOptimisationMethod::simpleRunGas(AssemblyItems const& _items)
bigint ConstantOptimisationMethod::dataGas(bytes const& _data) const
{
+ assertThrow(_data.size() > 0, OptimizerException, "Empty bytecode generated.");
if (m_params.isCreation)
{
bigint gas;
@@ -101,7 +102,7 @@ bigint ConstantOptimisationMethod::dataGas(bytes const& _data) const
return gas;
}
else
- return GasCosts::createDataGas * dataSize();
+ return GasCosts::createDataGas * _data.size();
}
size_t ConstantOptimisationMethod::bytesRequired(AssemblyItems const& _items)
diff --git a/libevmasm/ConstantOptimiser.h b/libevmasm/ConstantOptimiser.h
index f0deb387..2c753fa8 100644
--- a/libevmasm/ConstantOptimiser.h
+++ b/libevmasm/ConstantOptimiser.h
@@ -75,8 +75,6 @@ public:
virtual AssemblyItems execute(Assembly& _assembly) const = 0;
protected:
- size_t dataSize() const { return std::max<size_t>(1, dev::bytesRequired(m_value)); }
-
/// @returns the run gas for the given items ignoring special gas costs
static bigint simpleRunGas(AssemblyItems const& _items);
/// @returns the gas needed to store the given data literally