Merge pull request #5333 from ethereum/joinPerformance

[Yul] Use map join algorithm for performance.

3 files changed, 718 insertions, 20 deletions

diff --git a/libyul/optimiser/RedundantAssignEliminator.cpp b/libyul/optimiser/RedundantAssignEliminator.cpp
index 775b7673..b7217074 100644
--- a/libyul/optimiser/RedundantAssignEliminator.cpp
+++ b/libyul/optimiser/RedundantAssignEliminator.cpp
@@ -96,9 +96,15 @@ void RedundantAssignEliminator::operator()(FunctionDefinition const& _functionDe
 	(*this)(_functionDefinition.body);
 
 	for (auto const& param: _functionDefinition.parameters)
+	{
 		changeUndecidedTo(param.name, State::Unused);
+		finalize(param.name);
+	}
 	for (auto const& retParam: _functionDefinition.returnVariables)
+	{
 		changeUndecidedTo(retParam.name, State::Used);
+		finalize(retParam.name);
+	}
 }
 
 void RedundantAssignEliminator::operator()(ForLoop const& _forLoop)
@@ -150,30 +156,48 @@ void RedundantAssignEliminator::run(Block& _ast)
 	RedundantAssignEliminator rae;
 	rae(_ast);
 
-	std::set<Assignment const*> assignmentsToRemove;
-	for (auto const& variables: rae.m_assignments)
-		for (auto const& assignment: variables.second)
-		{
-			assertThrow(assignment.second != State::Undecided, OptimizerException, "");
-			if (assignment.second == State::Unused && MovableChecker{*assignment.first->value}.movable())
-				assignmentsToRemove.emplace(assignment.first);
-		}
-
-	AssignmentRemover remover{assignmentsToRemove};
+	AssignmentRemover remover{rae.m_assignmentsToRemove};
 	remover(_ast);
 }
 
-void RedundantAssignEliminator::join(RedundantAssignEliminator& _other)
+template <class K, class V, class F>
+void joinMap(std::map<K, V>& _a, std::map<K, V>&& _b, F _conflictSolver)
 {
-	for (auto& var: _other.m_assignments)
-		if (m_assignments.count(var.first))
+	// TODO Perhaps it is better to just create a sorted list
+	// and then use insert(begin, end)
+
+	auto ita = _a.begin();
+	auto aend = _a.end();
+	auto itb = _b.begin();
+	auto bend = _b.end();
+
+	for (; itb != bend; ++ita)
+	{
+		if (ita == aend)
+			ita = _a.insert(ita, std::move(*itb++));
+		else if (ita->first < itb->first)
+			continue;
+		else if (itb->first < ita->first)
+			ita = _a.insert(ita, std::move(*itb++));
+		else
 		{
-			map<Assignment const*, State>& assignmentsHere = m_assignments[var.first];
-			for (auto& assignment: var.second)
-				assignmentsHere[assignment.first].join(assignment.second);
+			_conflictSolver(ita->second, std::move(itb->second));
+			++itb;
 		}
-		else
-			m_assignments[var.first] = std::move(var.second);
+	}
+}
+
+void RedundantAssignEliminator::join(RedundantAssignEliminator& _other)
+{
+	m_assignmentsToRemove.insert(begin(_other.m_assignmentsToRemove), end(_other.m_assignmentsToRemove));
+
+	joinMap(m_assignments, std::move(_other.m_assignments), [](
+		map<Assignment const*, State>& _assignmentHere,
+		map<Assignment const*, State>&& _assignmentThere
+	)
+	{
+		return joinMap(_assignmentHere, std::move(_assignmentThere), State::join);
+	});
 }
 
 void RedundantAssignEliminator::changeUndecidedTo(YulString _variable, RedundantAssignEliminator::State _newState)
@@ -183,6 +207,19 @@ void RedundantAssignEliminator::changeUndecidedTo(YulString _variable, Redundant
 			assignment.second = _newState;
 }
 
+void RedundantAssignEliminator::finalize(YulString _variable)
+{
+	for (auto& assignment: m_assignments[_variable])
+	{
+		assertThrow(assignment.second != State::Undecided, OptimizerException, "");
+		if (assignment.second == State{State::Unused} && MovableChecker{*assignment.first->value}.movable())
+			// TODO the only point where we actually need this
+			// to be a set is for the for loop
+			m_assignmentsToRemove.insert(assignment.first);
+	}
+	m_assignments.erase(_variable);
+}
+
 void AssignmentRemover::operator()(Block& _block)
 {
 	boost::range::remove_erase_if(_block.statements, [=](Statement const& _statement) -> bool {
diff --git a/libyul/optimiser/RedundantAssignEliminator.h b/libyul/optimiser/RedundantAssignEliminator.h
index 805a1f63..76106aae 100644
--- a/libyul/optimiser/RedundantAssignEliminator.h
+++ b/libyul/optimiser/RedundantAssignEliminator.h
@@ -127,10 +127,10 @@ private:
 		State(Value _value = Undecided): m_value(_value) {}
 		inline bool operator==(State _other) const { return m_value == _other.m_value; }
 		inline bool operator!=(State _other) const { return !operator==(_other); }
-		inline void join(State const& _other)
+		static inline void join(State& _a, State const& _b)
 		{
 			// Using "max" works here because of the order of the values in the enum.
-			m_value = Value(std::max(int(_other.m_value), int(m_value)));
+			_a.m_value =  Value(std::max(int(_a.m_value), int(_b.m_value)));
 		}
 	private:
 		Value m_value = Undecided;
@@ -149,8 +149,12 @@ private:
 		}
 		~BlockScope()
 		{
+			// This should actually store all declared variables
+			// into a different mapping
 			for (auto const& var: m_rae.m_declaredVariables)
 				m_rae.changeUndecidedTo(var, State::Unused);
+			for (auto const& var: m_rae.m_declaredVariables)
+				m_rae.finalize(var);
 			swap(m_rae.m_declaredVariables, m_outerDeclaredVariables);
 		}
 
@@ -164,10 +168,13 @@ private:
 	/// Will destroy @a _other.
 	void join(RedundantAssignEliminator& _other);
 	void changeUndecidedTo(YulString _variable, State _newState);
+	void finalize(YulString _variable);
 
 	std::set<YulString> m_declaredVariables;
 	// TODO check that this does not cause nondeterminism!
+	// This could also be a pseudo-map from state to assignment.
 	std::map<YulString, std::map<Assignment const*, State>> m_assignments;
+	std::set<Assignment const*> m_assignmentsToRemove;
 };
 
 class AssignmentRemover: public ASTModifier
diff --git a/test/libyul/yulOptimizerTests/fullSuite/abi_example1.yul b/test/libyul/yulOptimizerTests/fullSuite/abi_example1.yul
new file mode 100644
index 00000000..cc6044d3
--- /dev/null
+++ b/test/libyul/yulOptimizerTests/fullSuite/abi_example1.yul
@@ -0,0 +1,654 @@
+{
+    let x := abi_encode_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr_to_t_array$_t_array$_t_address_$3_memory_$dyn_memory_ptr(mload(0), 0x20)
+    let a, b, c, d := abi_decode_tuple_t_uint256t_uint256t_array$_t_uint256_$dyn_memory_ptrt_array$_t_array$_t_uint256_$2_memory_$dyn_memory_ptr(mload(0x20), mload(0x40))
+    sstore(a, b)
+    sstore(c, d)
+    sstore(0, x)
+
+    function abi_decode_t_address(offset, end) -> value
+    {
+        value := cleanup_revert_t_address(calldataload(offset))
+    }
+    function abi_decode_t_array$_t_address_$dyn_memory(offset, end) -> array
+    {
+        if iszero(slt(add(offset, 0x1f), end))
+        {
+            revert(0, 0)
+        }
+        let length := calldataload(offset)
+        array := allocateMemory(array_allocation_size_t_array$_t_address_$dyn_memory(length))
+        let dst := array
+        mstore(array, length)
+        offset := add(offset, 0x20)
+        dst := add(dst, 0x20)
+        let src := offset
+        if gt(add(src, mul(length, 0x20)), end)
+        {
+            revert(0, 0)
+        }
+        for {
+            let i := 0
+        }
+        lt(i, length)
+        {
+            i := add(i, 1)
+        }
+        {
+            let elementPos := src
+            mstore(dst, abi_decode_t_address(elementPos, end))
+            dst := add(dst, 0x20)
+            src := add(src, 0x20)
+        }
+    }
+    function abi_decode_t_array$_t_array$_t_uint256_$2_memory_$dyn_memory_ptr(offset, end) -> array
+    {
+        if iszero(slt(add(offset, 0x1f), end))
+        {
+            revert(0, 0)
+        }
+        let length := calldataload(offset)
+        array := allocateMemory(array_allocation_size_t_array$_t_array$_t_uint256_$2_memory_$dyn_memory_ptr(length))
+        let dst := array
+        mstore(array, length)
+        offset := add(offset, 0x20)
+        dst := add(dst, 0x20)
+        let src := offset
+        if gt(add(src, mul(length, 0x40)), end)
+        {
+            revert(0, 0)
+        }
+        for {
+            let i := 0
+        }
+        lt(i, length)
+        {
+            i := add(i, 1)
+        }
+        {
+            let elementPos := src
+            mstore(dst, abi_decode_t_array$_t_uint256_$2_memory(elementPos, end))
+            dst := add(dst, 0x20)
+            src := add(src, 0x40)
+        }
+    }
+    function abi_decode_t_array$_t_uint256_$2_memory(offset, end) -> array
+    {
+        if iszero(slt(add(offset, 0x1f), end))
+        {
+            revert(0, 0)
+        }
+        let length := 0x2
+        array := allocateMemory(array_allocation_size_t_array$_t_uint256_$2_memory(length))
+        let dst := array
+        let src := offset
+        if gt(add(src, mul(length, 0x20)), end)
+        {
+            revert(0, 0)
+        }
+        for {
+            let i := 0
+        }
+        lt(i, length)
+        {
+            i := add(i, 1)
+        }
+        {
+            let elementPos := src
+            mstore(dst, abi_decode_t_uint256(elementPos, end))
+            dst := add(dst, 0x20)
+            src := add(src, 0x20)
+        }
+    }
+    function abi_decode_t_array$_t_uint256_$dyn_memory(offset, end) -> array
+    {
+        if iszero(slt(add(offset, 0x1f), end))
+        {
+            revert(0, 0)
+        }
+        let length := calldataload(offset)
+        array := allocateMemory(array_allocation_size_t_array$_t_uint256_$dyn_memory(length))
+        let dst := array
+        mstore(array, length)
+        offset := add(offset, 0x20)
+        dst := add(dst, 0x20)
+        let src := offset
+        if gt(add(src, mul(length, 0x20)), end)
+        {
+            revert(0, 0)
+        }
+        for {
+            let i := 0
+        }
+        lt(i, length)
+        {
+            i := add(i, 1)
+        }
+        {
+            let elementPos := src
+            mstore(dst, abi_decode_t_uint256(elementPos, end))
+            dst := add(dst, 0x20)
+            src := add(src, 0x20)
+        }
+    }
+    function abi_decode_t_array$_t_uint256_$dyn_memory_ptr(offset, end) -> array
+    {
+        if iszero(slt(add(offset, 0x1f), end))
+        {
+            revert(0, 0)
+        }
+        let length := calldataload(offset)
+        array := allocateMemory(array_allocation_size_t_array$_t_uint256_$dyn_memory_ptr(length))
+        let dst := array
+        mstore(array, length)
+        offset := add(offset, 0x20)
+        dst := add(dst, 0x20)
+        let src := offset
+        if gt(add(src, mul(length, 0x20)), end)
+        {
+            revert(0, 0)
+        }
+        for {
+            let i := 0
+        }
+        lt(i, length)
+        {
+            i := add(i, 1)
+        }
+        {
+            let elementPos := src
+            mstore(dst, abi_decode_t_uint256(elementPos, end))
+            dst := add(dst, 0x20)
+            src := add(src, 0x20)
+        }
+    }
+    function abi_decode_t_contract$_C_$55(offset, end) -> value
+    {
+        value := cleanup_revert_t_contract$_C_$55(calldataload(offset))
+    }
+    function abi_decode_t_struct$_S_$11_memory_ptr(headStart, end) -> value
+    {
+        if slt(sub(end, headStart), 0x60)
+        {
+            revert(0, 0)
+        }
+        value := allocateMemory(0x60)
+        {
+            let offset := 0
+            mstore(add(value, 0x0), abi_decode_t_uint256(add(headStart, offset), end))
+        }
+        {
+            let offset := calldataload(add(headStart, 32))
+            if gt(offset, 0xffffffffffffffff)
+            {
+                revert(0, 0)
+            }
+            mstore(add(value, 0x20), abi_decode_t_array$_t_uint256_$dyn_memory(add(headStart, offset), end))
+        }
+        {
+            let offset := calldataload(add(headStart, 64))
+            if gt(offset, 0xffffffffffffffff)
+            {
+                revert(0, 0)
+            }
+            mstore(add(value, 0x40), abi_decode_t_array$_t_address_$dyn_memory(add(headStart, offset), end))
+        }
+    }
+    function abi_decode_t_uint256(offset, end) -> value
+    {
+        value := cleanup_revert_t_uint256(calldataload(offset))
+    }
+    function abi_decode_t_uint8(offset, end) -> value
+    {
+        value := cleanup_revert_t_uint8(calldataload(offset))
+    }
+    function abi_decode_tuple_t_contract$_C_$55t_uint8(headStart, dataEnd) -> value0, value1
+    {
+        if slt(sub(dataEnd, headStart), 64)
+        {
+            revert(0, 0)
+        }
+        {
+            let offset := 0
+            value0 := abi_decode_t_contract$_C_$55(add(headStart, offset), dataEnd)
+        }
+        {
+            let offset := 32
+            value1 := abi_decode_t_uint8(add(headStart, offset), dataEnd)
+        }
+    }
+    function abi_decode_tuple_t_struct$_S_$11_memory_ptrt_uint256(headStart, dataEnd) -> value0, value1
+    {
+        if slt(sub(dataEnd, headStart), 64)
+        {
+            revert(0, 0)
+        }
+        {
+            let offset := calldataload(add(headStart, 0))
+            if gt(offset, 0xffffffffffffffff)
+            {
+                revert(0, 0)
+            }
+            value0 := abi_decode_t_struct$_S_$11_memory_ptr(add(headStart, offset), dataEnd)
+        }
+        {
+            let offset := 32
+            value1 := abi_decode_t_uint256(add(headStart, offset), dataEnd)
+        }
+    }
+    function abi_decode_tuple_t_uint256t_uint256t_array$_t_uint256_$dyn_memory_ptrt_array$_t_array$_t_uint256_$2_memory_$dyn_memory_ptr(headStart, dataEnd) -> value0, value1, value2, value3
+    {
+        if slt(sub(dataEnd, headStart), 128)
+        {
+            revert(0, 0)
+        }
+        {
+            let offset := 0
+            value0 := abi_decode_t_uint256(add(headStart, offset), dataEnd)
+        }
+        {
+            let offset := 32
+            value1 := abi_decode_t_uint256(add(headStart, offset), dataEnd)
+        }
+        {
+            let offset := calldataload(add(headStart, 64))
+            if gt(offset, 0xffffffffffffffff)
+            {
+                revert(0, 0)
+            }
+            value2 := abi_decode_t_array$_t_uint256_$dyn_memory_ptr(add(headStart, offset), dataEnd)
+        }
+        {
+            let offset := calldataload(add(headStart, 96))
+            if gt(offset, 0xffffffffffffffff)
+            {
+                revert(0, 0)
+            }
+            value3 := abi_decode_t_array$_t_array$_t_uint256_$2_memory_$dyn_memory_ptr(add(headStart, offset), dataEnd)
+        }
+    }
+    function abi_encode_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr_to_t_array$_t_array$_t_address_$3_memory_$dyn_memory_ptr(value, pos) -> end
+    {
+        let length := array_length_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr(value)
+        mstore(pos, length)
+        pos := add(pos, 0x20)
+        let srcPtr := array_dataslot_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr(value)
+        for {
+            let i := 0
+        }
+        lt(i, length)
+        {
+            i := add(i, 1)
+        }
+        {
+            abi_encode_t_array$_t_contract$_C_$55_$3_memory_to_t_array$_t_address_$3_memory_ptr(mload(srcPtr), pos)
+            srcPtr := array_nextElement_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr(srcPtr)
+            pos := add(pos, 0x60)
+        }
+        end := pos
+    }
+    function abi_encode_t_array$_t_contract$_C_$55_$3_memory_to_t_array$_t_address_$3_memory_ptr(value, pos)
+    {
+        let length := array_length_t_array$_t_contract$_C_$55_$3_memory(value)
+        let srcPtr := array_dataslot_t_array$_t_contract$_C_$55_$3_memory(value)
+        for {
+            let i := 0
+        }
+        lt(i, length)
+        {
+            i := add(i, 1)
+        }
+        {
+            abi_encode_t_contract$_C_$55_to_t_address(mload(srcPtr), pos)
+            srcPtr := array_nextElement_t_array$_t_contract$_C_$55_$3_memory(srcPtr)
+            pos := add(pos, 0x20)
+        }
+    }
+    function abi_encode_t_bool_to_t_bool(value, pos)
+    {
+        mstore(pos, cleanup_assert_t_bool(value))
+    }
+    function abi_encode_t_contract$_C_$55_to_t_address(value, pos)
+    {
+        mstore(pos, convert_t_contract$_C_$55_to_t_address(value))
+    }
+    function abi_encode_t_uint16_to_t_uint16(value, pos)
+    {
+        mstore(pos, cleanup_assert_t_uint16(value))
+    }
+    function abi_encode_t_uint24_to_t_uint24(value, pos)
+    {
+        mstore(pos, cleanup_assert_t_uint24(value))
+    }
+    function abi_encode_tuple_t_bool__to_t_bool_(headStart, value0) -> tail
+    {
+        tail := add(headStart, 32)
+        abi_encode_t_bool_to_t_bool(value0, add(headStart, 0))
+    }
+    function abi_encode_tuple_t_uint16_t_uint24_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr__to_t_uint16_t_uint24_t_array$_t_array$_t_address_$3_memory_$dyn_memory_ptr_(headStart, value2, value1, value0) -> tail
+    {
+        tail := add(headStart, 96)
+        abi_encode_t_uint16_to_t_uint16(value0, add(headStart, 0))
+        abi_encode_t_uint24_to_t_uint24(value1, add(headStart, 32))
+        mstore(add(headStart, 64), sub(tail, headStart))
+        tail := abi_encode_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr_to_t_array$_t_array$_t_address_$3_memory_$dyn_memory_ptr(value2, tail)
+    }
+    function allocateMemory(size) -> memPtr
+    {
+        memPtr := mload(64)
+        let newFreePtr := add(memPtr, size)
+        if or(gt(newFreePtr, 0xffffffffffffffff), lt(newFreePtr, memPtr))
+        {
+            revert(0, 0)
+        }
+        mstore(64, newFreePtr)
+    }
+    function array_allocation_size_t_array$_t_address_$dyn_memory(length) -> size
+    {
+        if gt(length, 0xffffffffffffffff)
+        {
+            revert(0, 0)
+        }
+        size := mul(length, 0x20)
+        size := add(size, 0x20)
+    }
+    function array_allocation_size_t_array$_t_array$_t_uint256_$2_memory_$dyn_memory_ptr(length) -> size
+    {
+        if gt(length, 0xffffffffffffffff)
+        {
+            revert(0, 0)
+        }
+        size := mul(length, 0x20)
+        size := add(size, 0x20)
+    }
+    function array_allocation_size_t_array$_t_uint256_$2_memory(length) -> size
+    {
+        if gt(length, 0xffffffffffffffff)
+        {
+            revert(0, 0)
+        }
+        size := mul(length, 0x20)
+    }
+    function array_allocation_size_t_array$_t_uint256_$dyn_memory(length) -> size
+    {
+        if gt(length, 0xffffffffffffffff)
+        {
+            revert(0, 0)
+        }
+        size := mul(length, 0x20)
+        size := add(size, 0x20)
+    }
+    function array_allocation_size_t_array$_t_uint256_$dyn_memory_ptr(length) -> size
+    {
+        if gt(length, 0xffffffffffffffff)
+        {
+            revert(0, 0)
+        }
+        size := mul(length, 0x20)
+        size := add(size, 0x20)
+    }
+    function array_dataslot_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr(memPtr) -> dataPtr
+    {
+        dataPtr := add(memPtr, 0x20)
+    }
+    function array_dataslot_t_array$_t_contract$_C_$55_$3_memory(memPtr) -> dataPtr
+    {
+        dataPtr := memPtr
+    }
+    function array_length_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr(value) -> length
+    {
+        length := mload(value)
+    }
+    function array_length_t_array$_t_contract$_C_$55_$3_memory(value) -> length
+    {
+        length := 0x3
+    }
+    function array_nextElement_t_array$_t_array$_t_contract$_C_$55_$3_memory_$dyn_memory_ptr(memPtr) -> nextPtr
+    {
+        nextPtr := add(memPtr, 0x20)
+    }
+    function array_nextElement_t_array$_t_contract$_C_$55_$3_memory(memPtr) -> nextPtr
+    {
+        nextPtr := add(memPtr, 0x20)
+    }
+    function cleanup_assert_t_address(value) -> cleaned
+    {
+        cleaned := cleanup_assert_t_uint160(value)
+    }
+    function cleanup_assert_t_bool(value) -> cleaned
+    {
+        cleaned := iszero(iszero(value))
+    }
+    function cleanup_assert_t_uint16(value) -> cleaned
+    {
+        cleaned := and(value, 0xFFFF)
+    }
+    function cleanup_assert_t_uint160(value) -> cleaned
+    {
+        cleaned := and(value, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)
+    }
+    function cleanup_assert_t_uint24(value) -> cleaned
+    {
+        cleaned := and(value, 0xFFFFFF)
+    }
+    function cleanup_revert_t_address(value) -> cleaned
+    {
+        cleaned := cleanup_assert_t_uint160(value)
+    }
+    function cleanup_revert_t_contract$_C_$55(value) -> cleaned
+    {
+        cleaned := cleanup_assert_t_address(value)
+    }
+    function cleanup_revert_t_uint256(value) -> cleaned
+    {
+        cleaned := value
+    }
+    function cleanup_revert_t_uint8(value) -> cleaned
+    {
+        cleaned := and(value, 0xFF)
+    }
+    function convert_t_contract$_C_$55_to_t_address(value) -> converted
+    {
+        converted := convert_t_contract$_C_$55_to_t_uint160(value)
+    }
+    function convert_t_contract$_C_$55_to_t_uint160(value) -> converted
+    {
+        converted := cleanup_assert_t_uint160(value)
+    }
+}
+// ----
+// fullSuite
+// {
+//     {
+//         let _1 := 0x20
+//         let _2 := 0
+//         let _485 := mload(_2)
+//         let abi_encode_pos := _1
+//         let abi_encode_length_68 := mload(_485)
+//         mstore(_1, abi_encode_length_68)
+//         let abi_encode_pos_590 := 64
+//         abi_encode_pos := abi_encode_pos_590
+//         let abi_encode_srcPtr := add(_485, _1)
+//         for {
+//             let abi_encode_i_69 := _2
+//         }
+//         lt(abi_encode_i_69, abi_encode_length_68)
+//         {
+//             abi_encode_i_69 := add(abi_encode_i_69, 1)
+//         }
+//         {
+//             let _922 := mload(abi_encode_srcPtr)
+//             let abi_encode_pos_71_1029 := abi_encode_pos
+//             let abi_encode_length_72_1030 := 0x3
+//             let abi_encode_srcPtr_73_1031 := _922
+//             for {
+//                 let abi_encode_i_74_1032 := _2
+//             }
+//             lt(abi_encode_i_74_1032, abi_encode_length_72_1030)
+//             {
+//                 abi_encode_i_74_1032 := add(abi_encode_i_74_1032, 1)
+//             }
+//             {
+//                 mstore(abi_encode_pos_71_1029, and(mload(abi_encode_srcPtr_73_1031), 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF))
+//                 abi_encode_srcPtr_73_1031 := add(abi_encode_srcPtr_73_1031, _1)
+//                 abi_encode_pos_71_1029 := add(abi_encode_pos_71_1029, _1)
+//             }
+//             abi_encode_srcPtr := add(abi_encode_srcPtr, _1)
+//             abi_encode_pos := add(abi_encode_pos, 0x60)
+//         }
+//         let _924 := 0x40
+//         let _487 := mload(_924)
+//         let _488 := mload(_1)
+//         let abi_decode_value0_60_618
+//         let abi_decode_value0_60 := abi_decode_value0_60_618
+//         let abi_decode_value1_61_619
+//         let abi_decode_value1_61 := abi_decode_value1_61_619
+//         let abi_decode_value2_620
+//         let abi_decode_value2 := abi_decode_value2_620
+//         let abi_decode_value3_621
+//         let abi_decode_value3 := abi_decode_value3_621
+//         if slt(sub(_487, _488), 128)
+//         {
+//             revert(_2, _2)
+//         }
+//         {
+//             abi_decode_value0_60 := calldataload(_488)
+//         }
+//         {
+//             abi_decode_value1_61 := calldataload(add(_488, 32))
+//         }
+//         {
+//             let abi_decode_offset_64 := calldataload(add(_488, abi_encode_pos_590))
+//             let _931 := 0xffffffffffffffff
+//             if gt(abi_decode_offset_64, _931)
+//             {
+//                 revert(_2, _2)
+//             }
+//             let _933 := add(_488, abi_decode_offset_64)
+//             if iszero(slt(add(_933, 0x1f), _487))
+//             {
+//                 revert(_2, _2)
+//             }
+//             let abi_decode_length_30_1038 := calldataload(_933)
+//             if gt(abi_decode_length_30_1038, _931)
+//             {
+//                 revert(_2, _2)
+//             }
+//             let abi_decode_array_allo__561 := mul(abi_decode_length_30_1038, _1)
+//             let abi_decode_array_29_279_1039 := allocateMemory(add(abi_decode_array_allo__561, _1))
+//             let abi_decode_dst_31_1040 := abi_decode_array_29_279_1039
+//             mstore(abi_decode_array_29_279_1039, abi_decode_length_30_1038)
+//             let abi_decode_offset_27_281_1041 := add(_933, _1)
+//             abi_decode_dst_31_1040 := add(abi_decode_array_29_279_1039, _1)
+//             let abi_decode_src_32_1042 := abi_decode_offset_27_281_1041
+//             if gt(add(add(_933, abi_decode_array_allo__561), _1), _487)
+//             {
+//                 revert(_2, _2)
+//             }
+//             for {
+//                 let abi_decode_i_33_1044 := _2
+//             }
+//             lt(abi_decode_i_33_1044, abi_decode_length_30_1038)
+//             {
+//                 abi_decode_i_33_1044 := add(abi_decode_i_33_1044, 1)
+//             }
+//             {
+//                 mstore(abi_decode_dst_31_1040, calldataload(abi_decode_src_32_1042))
+//                 abi_decode_dst_31_1040 := add(abi_decode_dst_31_1040, _1)
+//                 abi_decode_src_32_1042 := add(abi_decode_src_32_1042, _1)
+//             }
+//             abi_decode_value2 := abi_decode_array_29_279_1039
+//         }
+//         {
+//             let abi_decode_offset_65 := calldataload(add(_488, 96))
+//             let _936 := 0xffffffffffffffff
+//             if gt(abi_decode_offset_65, _936)
+//             {
+//                 revert(_2, _2)
+//             }
+//             let _938 := add(_488, abi_decode_offset_65)
+//             let abi_decode__489_1048 := 0x1f
+//             if iszero(slt(add(_938, abi_decode__489_1048), _487))
+//             {
+//                 revert(_2, _2)
+//             }
+//             let abi_decode_length_6_1050 := calldataload(_938)
+//             if gt(abi_decode_length_6_1050, _936)
+//             {
+//                 revert(_2, _2)
+//             }
+//             let abi_decode_array_5_254_1051 := allocateMemory(add(mul(abi_decode_length_6_1050, _1), _1))
+//             let abi_decode_dst_7_1052 := abi_decode_array_5_254_1051
+//             mstore(abi_decode_array_5_254_1051, abi_decode_length_6_1050)
+//             let abi_decode_offset_3_256_1053 := add(_938, _1)
+//             abi_decode_dst_7_1052 := add(abi_decode_array_5_254_1051, _1)
+//             let abi_decode_src_8_1054 := abi_decode_offset_3_256_1053
+//             if gt(add(add(_938, mul(abi_decode_length_6_1050, _924)), _1), _487)
+//             {
+//                 revert(_2, _2)
+//             }
+//             for {
+//                 let abi_decode_i_9_1058 := _2
+//             }
+//             lt(abi_decode_i_9_1058, abi_decode_length_6_1050)
+//             {
+//                 abi_decode_i_9_1058 := add(abi_decode_i_9_1058, 1)
+//             }
+//             {
+//                 if iszero(slt(add(abi_decode_src_8_1054, abi_decode__489_1048), _487))
+//                 {
+//                     revert(_2, _2)
+//                 }
+//                 let abi_decode_abi_decode_length_14 := 0x2
+//                 if _2
+//                 {
+//                     revert(_2, _2)
+//                 }
+//                 let allocateMe_memPtr_315 := mload(abi_encode_pos_590)
+//                 let allocateMe_newFreePtr := add(allocateMe_memPtr_315, abi_encode_pos_590)
+//                 if or(gt(allocateMe_newFreePtr, _936), lt(allocateMe_newFreePtr, allocateMe_memPtr_315))
+//                 {
+//                     revert(_2, _2)
+//                 }
+//                 mstore(abi_encode_pos_590, allocateMe_newFreePtr)
+//                 let abi_decode_abi_decode_dst_15 := allocateMe_memPtr_315
+//                 let abi_decode_abi_decode_src_16 := abi_decode_src_8_1054
+//                 if gt(add(abi_decode_src_8_1054, abi_encode_pos_590), _487)
+//                 {
+//                     revert(_2, _2)
+//                 }
+//                 for {
+//                     let abi_decode_abi_decode_i_17 := _2
+//                 }
+//                 lt(abi_decode_abi_decode_i_17, abi_decode_abi_decode_length_14)
+//                 {
+//                     abi_decode_abi_decode_i_17 := add(abi_decode_abi_decode_i_17, 1)
+//                 }
+//                 {
+//                     mstore(abi_decode_abi_decode_dst_15, calldataload(abi_decode_abi_decode_src_16))
+//                     abi_decode_abi_decode_dst_15 := add(abi_decode_abi_decode_dst_15, _1)
+//                     abi_decode_abi_decode_src_16 := add(abi_decode_abi_decode_src_16, _1)
+//                 }
+//                 mstore(abi_decode_dst_7_1052, allocateMe_memPtr_315)
+//                 abi_decode_dst_7_1052 := add(abi_decode_dst_7_1052, _1)
+//                 abi_decode_src_8_1054 := add(abi_decode_src_8_1054, _924)
+//             }
+//             abi_decode_value3 := abi_decode_array_5_254_1051
+//         }
+//         sstore(abi_decode_value0_60, abi_decode_value1_61)
+//         sstore(abi_decode_value2, abi_decode_value3)
+//         sstore(_2, abi_encode_pos)
+//     }
+//     function allocateMemory(size) -> memPtr
+//     {
+//         let _199 := 64
+//         let memPtr_315 := mload(_199)
+//         memPtr := memPtr_315
+//         let newFreePtr := add(memPtr_315, size)
+//         if or(gt(newFreePtr, 0xffffffffffffffff), lt(newFreePtr, memPtr_315))
+//         {
+//             let _204 := 0
+//             revert(_204, _204)
+//         }
+//         mstore(_199, newFreePtr)
+//     }
+// }