hyperledger-solang_solang/tests/codegen_testcases/solidity/unused_variable_elimination.sol

// RUN: --target substrate --emit cfg

contract c2 {
    int public cd;
    function sum(int32 a, int32 b) public pure returns (int32) {
        return a+b;
    }
// BEGIN-CHECK: function::doSomething
    function doSomething() public returns (int, int) {
        cd=2;
// CHECK: store storage slot(uint256 0) ty:int256 =
        return (1, 2);
    }
}

contract c {
    int32 g;
// BEGIN-CHECK: c::function::test
	function test() public returns (int32) {
		int32 x = 102;
        g = 3;
		return 5;
// NOT-CHECK: ty:int32 %x = int32 102

	}

// BEGIN-CHECK: c::function::test2
	function test2() public view returns (int32) {
		int32 x = 102;
        int32 y = 93;
        int32 t = 9;
        x = 102 + t*y/(t+5*y) + g;
		return 2;
// NOT-CHECK: ty:int32 %x = int32 102
// NOT-CHECK: ty:int32 %x = (int32 103 + %temp.6)
	}

// BEGIN-CHECK: c::function::test3
	function test3() public view returns (int32) {
		int32 x;
        int32 y = 93;
        int32 t = 9;
        x = 102 + t*y/(t+5*y) + g;
		return 2;
// NOT-CHECK: ty:int32 %x = (int32 103 + %temp.6)
	}

// BEGIN-CHECK: c::function::test4
	function test4() public view returns (int32) {
		int32 x;
        int32 y = 93;
        int32 t = 9;
        x = 102 + t*y/(t+5*y) + g + test3();
		return 2;
// NOT-CHECK: ty:int32 %x = (int32 103 + %temp.6)
// CHECK: call c::c::function::test3
	}

// BEGIN-CHECK: c::function::test5
    function test5() public returns (int32) {
		int32 x;
        int32[] vec;
        int32 y = 93;
        int32 t = 9;
        c2 ct = new c2();
        x = 102 + t*y/(t+5*y) + g + test3() - vec.push(2) + ct.sum(1, 2);
		return 2;
// CHECK: push array ty:int32[] value:int32 2
// CHECK: _ = external call::regular address:%ct payload:%abi_encoded.temp.75 value:uint128 0 gas:uint64 0 accounts: seeds:
}

}

contract c3 {
// BEGIN-CHECK: c3::function::test6
    function test6() public returns (int32) {
        c2 ct = new c2();

        return 3;
// CHECK: constructor salt: value: gas:uint64 0 address: seeds: c2 (encoded buffer: %abi_encoded.temp.80, buffer len: uint32 4)
    }

// BEGIN-CHECK: c3::function::test7
    function test7() public returns (int32) {
        c2 ct = new c2();
// constructor salt: value: gas:uint64 0 address: seeds: c2 (encoded buffer: %abi_encoded.temp.82, buffer len: uint32 4)
        address ad = address(ct);
        (bool p, ) = ad.call(hex'ba');
// CHECK: external call::regular address:%ad payload:(alloc bytes uint32 1 hex"ba") value:uint128 0 gas:uint64 0
// NOT-CHECk: ty:bool %p = %success.temp.30
return 3;
    }


    struct testStruct {
        int a;
        int b;
    }

    testStruct t1;
    int public it1;
    int private it2;


// BEGIN-CHECK: c3::function::test8
    function test8() public returns (int){
        testStruct storage t2 = t1;
        t2.a = 5;

        it1 = 2;
        testStruct memory t3 = testStruct(1, 2);

        int[] memory vec = new int[](5);
        vec[0] = 3;
        it2 = 1;

        return 2;
// CHECK: store storage slot((unchecked %t2 + uint256 0)) ty:int256 =
// CHECK: store storage slot(uint256 2) ty:int256 =
// NOT-CHECK: ty:struct c1.testStruct %t3 = struct { int256 1, int256 2 }
// NOT-CHECK: alloc int256[] len uint32 5
// NOT-CHECK: store storage slot(uint256 3) ty:int256
    }

// BEGIN-CHECK: c3::function::test9
    function test9() public view returns (int) {
        int f = 4;

        int c = 32 +4 *(f = it1+it2);
//CHECK: ty:int256 %f =
        return f;
    }

// BEGIN-CHECK: c3::function::test10
    function test10() public view returns (int) {
        int f = 4;

        int c = 32 +4 *(f = it1+it2);
// CHECK: ty:int256 %c = (int256 32 + (sext int256 (int64 4 * (trunc int64 (%temp.89 + %temp.90)))))
// NOT-CHECK: ty:int256 %f = (%temp.10 + %temp.11)
        return c;
    }

// BEGIN-CHECK: c3::function::test11
    function test11() public returns (int) {
        c2 ct = new c2();
        (int a, int b) = ct.doSomething();
// CHECK: ty:int256 %b =
// NOT-CHECK: ty:int256 %a =
        return b;
    }

// BEGIN-CHECK: c3::function::test12
    function test12() public returns (int) {
        c2 ct = new c2();
        int a = 1;
        int b = 2;
        (a, b) = ct.doSomething();
        // CHECK: ty:int256 %a =
        // NOT-CHECK: ty:int256 %b =
        return a;
    }

// BEGIN-CHECK: c3::function::test13
    function test13() public returns (int){

        int[] memory vec = new int[](5);
        // CHECK: alloc int256[] len uint32 5
        vec[0] = 3;

        return vec[1];
    }

    int[] testArr;

// BEGIN-CHECK: c3::function::test14
    function test14() public returns (int) {
        int[] storage ptrArr = testArr;

// CHECK: store storage slot(%temp.109) ty:int256 storage = int256 3
        ptrArr.push(3);

        return ptrArr[0];
    }

// BEGIN-CHECK: c3::function::test15
    function test15() public returns (int) {
        int[4] memory arr = [1, 2, 3, 4];
// CHECK: ty:int256[4] %arr = [4] [ int256 1, int256 2, int256 3, int256 4 ]
        return arr[2];
    }

// BEGIN-CHECK: c3::function::test16
    function test16() public returns (int) {
        int[4] memory arr = [1, 2, 3, 4];
// NOT-CHECK: ty:int256[4] %arr = [4] [ int256 1, int256 2, int256 3, int256 4 ]
        return 2;
    }

// BEGIN-CHECK: c3::function::test17
    function test17() public pure returns (int) {
        int x;
// NOT-CHECK: ty:int256 %x
        int[] vec = new int[](2);
        x = 5*vec.pop();
        return 0;
// CHECK: pop array ty:int256[]
    }
// BEGIN-CHECK: c3::function::test18
    function test18(address payable addr) public returns (bool) {
        bool p;
        p = false || addr.send(msg.value);
        // CHECK: value transfer address
        return true;
    }

    int[] arrt;
// BEGIN-CHECK: c3::function::test19
    function test19() public returns (int) {
        int x;
    // NOT-CHECK: ty:int256 %x
        int y;
        x = y + arrt.pop();
        // NOT-CHECK: clear storage slot
        return 0;
    }

bytes bar;
// BEGIN-CHECK: c3::function::test20
    function test20() public {
        bytes1 x = bar.push();
// NOT-CHECK: ty:bytes1 %x
// CHECK: push storage ty:bytes1 slot
    }

}