From 8dc9113e370a2edd42213c2c0cca811a3dbd8dd4 Mon Sep 17 00:00:00 2001 From: Alex Beregszaszi Date: Thu, 5 Apr 2018 10:41:43 +0200 Subject: Add end-to-end test for SwapComparison and CommutativeSwap peephole optimisers --- test/libsolidity/SolidityEndToEndTest.cpp | 44 +++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'test/libsolidity') diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp index b58ebee4..4b4fc2af 100644 --- a/test/libsolidity/SolidityEndToEndTest.cpp +++ b/test/libsolidity/SolidityEndToEndTest.cpp @@ -11032,6 +11032,50 @@ BOOST_AUTO_TEST_CASE(staticcall_for_view_and_pure) } } +BOOST_AUTO_TEST_CASE(swap_peephole_optimisation) +{ + char const* sourceCode = R"( + contract C { + function lt(uint a, uint b) returns (bool c) { + assembly { + a + b + swap1 + lt + =: c + } + } + function add(uint a, uint b) returns (uint c) { + assembly { + a + b + swap1 + add + =: c + } + } + function div(uint a, uint b) returns (uint c) { + assembly { + a + b + swap1 + div + =: c + } + } + } + )"; + compileAndRun(sourceCode); + BOOST_CHECK(callContractFunction("lt(uint256,uint256)", u256(1), u256(2)) == encodeArgs(u256(1))); + BOOST_CHECK(callContractFunction("lt(uint256,uint256)", u256(2), u256(1)) == encodeArgs(u256(0))); + BOOST_CHECK(callContractFunction("add(uint256,uint256)", u256(1), u256(2)) == encodeArgs(u256(3))); + BOOST_CHECK(callContractFunction("add(uint256,uint256)", u256(100), u256(200)) == encodeArgs(u256(300))); + BOOST_CHECK(callContractFunction("div(uint256,uint256)", u256(2), u256(1)) == encodeArgs(u256(2))); + BOOST_CHECK(callContractFunction("div(uint256,uint256)", u256(200), u256(10)) == encodeArgs(u256(20))); + BOOST_CHECK(callContractFunction("div(uint256,uint256)", u256(1), u256(0)) == encodeArgs(u256(0))); + BOOST_CHECK(callContractFunction("div(uint256,uint256)", u256(0), u256(1)) == encodeArgs(u256(0))); +} + BOOST_AUTO_TEST_SUITE_END() } -- cgit