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| author | chriseth <chris@ethereum.org> | 2016-09-17 18:30:41 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-09-17 18:30:41 +0800 |
| commit | 212e01609144ebd82bd6a4884b924fc97f31a1b4 (patch) | |
| tree | cb2373739001771bd7dbd32fa325285cdcd3b4a0 /test/libsolidity/SolidityEndToEndTest.cpp | |
| parent | 60f432e869c3d49a0a68f707b9377335e7427159 (diff) | |
| parent | a4f6e5b16c7b9a9ba94c63b6042c20a988219e8e (diff) | |
| download | dexon-solidity-212e01609144ebd82bd6a4884b924fc97f31a1b4.tar.gz dexon-solidity-212e01609144ebd82bd6a4884b924fc97f31a1b4.tar.zst dexon-solidity-212e01609144ebd82bd6a4884b924fc97f31a1b4.zip | |
Merge pull request #1104 from ethereum/fixmemcosts
Fix memory resize costs during call
Diffstat (limited to 'test/libsolidity/SolidityEndToEndTest.cpp')
| -rw-r--r-- | test/libsolidity/SolidityEndToEndTest.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp index 3c949e9a..23bd2abc 100644 --- a/test/libsolidity/SolidityEndToEndTest.cpp +++ b/test/libsolidity/SolidityEndToEndTest.cpp @@ -7203,6 +7203,33 @@ BOOST_AUTO_TEST_CASE(no_nonpayable_circumvention_by_modifier) BOOST_CHECK_EQUAL(balanceAt(m_contractAddress), 0); } +BOOST_AUTO_TEST_CASE(mem_resize_is_not_paid_at_call) +{ + // This tests that memory resize for return values is not paid during the call, which would + // make the gas calculation overly complex. We access the end of the output area before + // the call is made. + // Tests that this also survives the optimizer. + char const* sourceCode = R"( + contract C { + function f() returns (uint[200]) {} + } + contract D { + function f(C c) returns (uint) { c.f(); return 7; } + } + )"; + + compileAndRun(sourceCode, 0, "C"); + u160 cAddr = m_contractAddress; + compileAndRun(sourceCode, 0, "D"); + BOOST_CHECK(callContractFunction("f(address)", cAddr) == encodeArgs(u256(7))); + + m_optimize = true; + + compileAndRun(sourceCode, 0, "C"); + u160 cAddrOpt = m_contractAddress; + compileAndRun(sourceCode, 0, "D"); + BOOST_CHECK(callContractFunction("f(address)", cAddrOpt) == encodeArgs(u256(7))); +} BOOST_AUTO_TEST_SUITE_END() |