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Test for optimizer bug caused by not incrementing the sequence counter.

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chriseth 2016-03-11 16:14:21 +01:00
parent ee0ba31c2b
commit 3b9969baaa
1 changed files with 14 additions and 0 deletions
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14
test/libsolidity/SolidityOptimizer.cpp
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@ -390,6 +390,20 @@ BOOST_AUTO_TEST_CASE(incorrect_storage_access_bug)
compareVersions("f()");
}
BOOST_AUTO_TEST_CASE(sequence_number_for_calls)
{
// This is a test for a bug that was present because we did not increment the sequence
// number for CALLs - CALLs can read and write from memory (and DELEGATECALLs can do the same
// to storage), so the sequence number should be incremented.
char const* sourceCode = R"(
contract test {
function f(string a, string b) returns (bool) { return sha256(a) == sha256(b); }
}
)";
compileBothVersions(sourceCode);
compareVersions("f(string,string)", 0x40, 0x80, 3, "abc", 3, "def");
}
BOOST_AUTO_TEST_CASE(cse_intermediate_swap)
{
eth::KnownState state;