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| author | chriseth <c@ethdev.com> | 2015-05-28 20:43:46 +0800 |
|---|---|---|
| committer | chriseth <c@ethdev.com> | 2015-05-28 20:48:07 +0800 |
| commit | f3d95236517ee03176275aa41b44b181a9f1b46a (patch) | |
| tree | 059bdbfa8cbf13d1c96873cfd53d737e0a4fcbd0 /libsolidity | |
| parent | cfaa99727a5f55759e1f78349737a9dc07735984 (diff) | |
| download | dexon-solidity-f3d95236517ee03176275aa41b44b181a9f1b46a.tar.gz dexon-solidity-f3d95236517ee03176275aa41b44b181a9f1b46a.tar.zst dexon-solidity-f3d95236517ee03176275aa41b44b181a9f1b46a.zip | |
Allow duplicate code removal for loops.
Diffstat (limited to 'libsolidity')
| -rw-r--r-- | libsolidity/SolidityOptimizer.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libsolidity/SolidityOptimizer.cpp b/libsolidity/SolidityOptimizer.cpp index 744fc48a..827d8833 100644 --- a/libsolidity/SolidityOptimizer.cpp +++ b/libsolidity/SolidityOptimizer.cpp @@ -1004,6 +1004,38 @@ BOOST_AUTO_TEST_CASE(block_deduplicator) BOOST_CHECK_EQUAL(pushTags.size(), 2); } +BOOST_AUTO_TEST_CASE(block_deduplicator_loops) +{ + AssemblyItems input{ + u256(0), + eth::Instruction::SLOAD, + AssemblyItem(PushTag, 1), + AssemblyItem(PushTag, 2), + eth::Instruction::JUMPI, + eth::Instruction::JUMP, + AssemblyItem(Tag, 1), + u256(5), + u256(6), + eth::Instruction::SSTORE, + AssemblyItem(PushTag, 1), + eth::Instruction::JUMP, + AssemblyItem(Tag, 2), + u256(5), + u256(6), + eth::Instruction::SSTORE, + AssemblyItem(PushTag, 2), + eth::Instruction::JUMP, + }; + BlockDeduplicator dedup(input); + dedup.deduplicate(); + + set<u256> pushTags; + for (AssemblyItem const& item: input) + if (item.type() == PushTag) + pushTags.insert(item.data()); + BOOST_CHECK_EQUAL(pushTags.size(), 1); +} + BOOST_AUTO_TEST_SUITE_END() } |