diff options
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() } |