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-rw-r--r--test/libsolidity/SolidityOptimizer.cpp28
1 files changed, 26 insertions, 2 deletions
diff --git a/test/libsolidity/SolidityOptimizer.cpp b/test/libsolidity/SolidityOptimizer.cpp
index cf4550c7..5326feaf 100644
--- a/test/libsolidity/SolidityOptimizer.cpp
+++ b/test/libsolidity/SolidityOptimizer.cpp
@@ -93,8 +93,10 @@ public:
{
m_contractAddress = m_nonOptimizedContract;
bytes nonOptimizedOutput = callContractFunction(_sig, _arguments...);
+ m_gasUsedNonOptimized = m_gasUsed;
m_contractAddress = m_optimizedContract;
bytes optimizedOutput = callContractFunction(_sig, _arguments...);
+ m_gasUsedOptimized = m_gasUsed;
BOOST_CHECK_MESSAGE(!optimizedOutput.empty(), "No optimized output for " + _sig);
BOOST_CHECK_MESSAGE(!nonOptimizedOutput.empty(), "No un-optimized output for " + _sig);
BOOST_CHECK_MESSAGE(nonOptimizedOutput == optimizedOutput, "Computed values do not match."
@@ -120,6 +122,8 @@ public:
}
protected:
+ u256 m_gasUsedOptimized;
+ u256 m_gasUsedNonOptimized;
bytes m_nonOptimizedBytecode;
bytes m_optimizedBytecode;
Address m_optimizedContract;
@@ -584,6 +588,26 @@ BOOST_AUTO_TEST_CASE(invalid_state_at_control_flow_join)
compareVersions("test()");
}
+BOOST_AUTO_TEST_CASE(init_empty_dynamic_arrays)
+{
+ // This is not so much an optimizer test, but rather a test
+ // that allocating empty arrays is implemented efficiently.
+ // In particular, initializing a dynamic memory array does
+ // not use any memory.
+ char const* sourceCode = R"(
+ contract Test {
+ function f() pure returns (uint r) {
+ uint[][] memory x = new uint[][](20000);
+ return x.length;
+ }
+ }
+ )";
+ compileBothVersions(sourceCode);
+ compareVersions("f()");
+ BOOST_CHECK_LE(m_gasUsedNonOptimized, 1900000);
+ BOOST_CHECK_LE(1600000, m_gasUsedNonOptimized);
+}
+
BOOST_AUTO_TEST_CASE(optimise_multi_stores)
{
char const* sourceCode = R"(
@@ -603,8 +627,8 @@ BOOST_AUTO_TEST_CASE(optimise_multi_stores)
)";
compileBothVersions(sourceCode);
compareVersions("f()");
- BOOST_CHECK_EQUAL(numInstructions(m_nonOptimizedBytecode, Instruction::SSTORE), 13);
- BOOST_CHECK_EQUAL(numInstructions(m_optimizedBytecode, Instruction::SSTORE), 11);
+ BOOST_CHECK_EQUAL(numInstructions(m_nonOptimizedBytecode, Instruction::SSTORE), 9);
+ BOOST_CHECK_EQUAL(numInstructions(m_optimizedBytecode, Instruction::SSTORE), 8);
}
BOOST_AUTO_TEST_SUITE_END()