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Merge pull request #2027 from chriseth/sol_dupRemForLoops

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Allow duplicate code removal for loops.
This commit is contained in:
chriseth 2015-06-01 15:09:16 +02:00
commit 604a2d89d2
1 changed files with 32 additions and 0 deletions
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32
libsolidity/SolidityOptimizer.cpp
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@ -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()
}