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| author | chriseth <chris@ethereum.org> | 2016-11-30 21:26:01 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2016-11-30 21:26:01 +0800 |
| commit | e43a8ebc28cec3748ee96af6c32020c12da32f74 (patch) | |
| tree | 39f58108b77e01c74ae38690ada92696bc0629d4 /test | |
| parent | f70f8cf06aea5dcd44b6256b040e05d2a3f7045d (diff) | |
| parent | 9a6a5f219b74097c1a11278aad07df1ffd60ff45 (diff) | |
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Merge pull request #1345 from ethereum/optimiser-rules
More optimiser rules
Diffstat (limited to 'test')
| -rw-r--r-- | test/libsolidity/SolidityOptimizer.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/test/libsolidity/SolidityOptimizer.cpp b/test/libsolidity/SolidityOptimizer.cpp index a53a2638..89c89adc 100644 --- a/test/libsolidity/SolidityOptimizer.cpp +++ b/test/libsolidity/SolidityOptimizer.cpp @@ -1304,6 +1304,29 @@ BOOST_AUTO_TEST_CASE(invalid_state_at_control_flow_join) compareVersions("test()"); } +BOOST_AUTO_TEST_CASE(cse_sub_zero) +{ + checkCSE({ + u256(0), + Instruction::DUP2, + Instruction::SUB + }, { + Instruction::DUP1 + }); + + checkCSE({ + Instruction::DUP1, + u256(0), + Instruction::SUB + }, { + u256(0), + Instruction::DUP2, + Instruction::SWAP1, + Instruction::SUB + }); +} + + BOOST_AUTO_TEST_SUITE_END() } |