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Add test for SUB with 0 optimisation

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This commit is contained in:
Alex Beregszaszi 2016-11-09 11:28:53 +00:00
parent 3fdef92911
commit 8d0b80f944
1 changed files with 22 additions and 0 deletions
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22
test/libsolidity/SolidityOptimizer.cpp
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@ -1304,6 +1304,28 @@ BOOST_AUTO_TEST_CASE(invalid_state_at_control_flow_join)
compareVersions("test()"); compareVersions("test()");
} }
BOOST_AUTO_TEST_CASE(cse_sub_zero)
{
checkCSE({
u256(0),
u256(5),
Instruction::SUB
}, {
u256(5)
});
checkCSE({
u256(5),
u256(0),
Instruction::SUB
}, {
u256(5),
u256(0),
Instruction::SUB
});
}
BOOST_AUTO_TEST_SUITE_END() BOOST_AUTO_TEST_SUITE_END()
} }