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165 | @pytest.mark.repricing
@pytest.mark.stub_parametrize("token_name", "bloated_eoa_")
@pytest.mark.parametrize("write_new_value", [False, True])
@pytest.mark.parametrize("existing_slots", [True, False])
@pytest.mark.parametrize("cache_strategy", [CacheStrategy.NO_CACHE])
def test_sstore_bloated(
benchmark_test: BenchmarkTestFiller,
pre: Alloc,
fork: Fork,
gas_benchmark_value: int,
tx_gas_limit: int,
token_name: str,
write_new_value: bool,
existing_slots: bool,
cache_strategy: CacheStrategy,
) -> None:
"""
Benchmark SSTORE opcodes targeting an EOA with storage bloated.
"""
sstore_metadata: dict[str, Any] = {}
# If CACHE_TX, there would be one cold SLOAD before SSTORE
sstore_metadata["key_warm"] = cache_strategy == CacheStrategy.CACHE_TX
# SSTORE metadata matrix:
#
# existing_slots | write_new_value | original | current | new
# ---------------+-----------------+----------+---------+-----
# True | True | 1 | 1 | 2
# True | False | 1 | 1 | 1
# False | True | 0 | 0 | 1
# False | False | 0 | 0 | 0
initial_value = int(existing_slots)
# When existing_slots is False, the initial value is always 0
# Otherwise, the initial value starts at 1 instead.
sstore_metadata["original_value"] = initial_value
sstore_metadata["current_value"] = initial_value
# If not writing a new value, the new value is the same as the current one
# If writing a new value, the new value is current value + 1
sstore_metadata["new_value"] = (
initial_value if not write_new_value else initial_value + 1
)
setup = (
Op.CALLDATALOAD(32) # [end_slot]
+ Op.CALLDATALOAD(0) # [counter, end_slot]
)
# stack element: [counter, end_slot]
loop = Bytecode()
loop += Op.JUMPDEST # jump target
# If CACHE_TX, warm the slot with a cold SLOAD before the SSTORE loop
if cache_strategy == CacheStrategy.CACHE_TX:
loop += Op.POP(Op.SLOAD(Op.DUP1, key_warm=False))
sstore_op: Bytecode = Bytecode()
if write_new_value:
# s[counter] = counter + 1
sstore_op = (
Op.DUP1 # [counter, counter, end_slot]
+ Op.DUP1 # [counter, counter, counter, end_slot]
+ Op.PUSH1(1) # [1, counter, counter, counter, end_slot]
+ Op.ADD # [counter+1, counter, counter, end_slot]
+ Op.SWAP1 # [counter, counter+1, counter, end_slot]
+ Op.SSTORE(**sstore_metadata) # [counter, end_slot]
)
else:
# s[counter] = counter (existing slot) or 0 (non existing slot)
push_value = Op.DUP1 if existing_slots else Op.PUSH1(0)
sstore_op = (
push_value # [value, counter, end_slot]
+ Op.DUP2 # [counter, value, counter, end_slot]
+ Op.SSTORE(**sstore_metadata) # [counter, end_slot]
)
loop += sstore_op
# stack element: [counter, end_slot]
loop += (
Op.PUSH1(1) # [1, counter, end_slot]
+ Op.ADD # [counter+1, end_slot]
+ Op.DUP2 # [end_slot, counter+1, end_slot]
+ Op.DUP2 # [counter+1, end_slot, counter+1, end_slot]
+ Op.LT # [counter+1<end_slot, counter+1, end_slot]
+ Op.PUSH1(len(setup)) # [dest, condition, counter+1, end_slot]
+ Op.JUMPI # [counter+1, end_slot]
)
runtime_code = IteratingBytecode(
setup=setup,
iterating=loop,
cleanup=Op.STOP,
)
authority = pre.stub_eoa(token_name)
start_slot = 1 if existing_slots else START_SLOT
def calldata_gen(iteration_count: int, start_iteration: int) -> bytes:
return Hash(start_iteration) + Hash(start_iteration + iteration_count)
def tx_generator(sender: EOA) -> list[Transaction]:
return list(
runtime_code.transactions_by_gas_limit(
fork=fork,
gas_limit=gas_benchmark_value,
sender=sender,
to=authority,
start_iteration=start_slot,
calldata=calldata_gen,
recipient_type=RecipientType.DELEGATION_7702,
)
)
run_bloated_eoa_benchmark(
benchmark_test=benchmark_test,
pre=pre,
fork=fork,
gas_benchmark_value=gas_benchmark_value,
tx_gas_limit=tx_gas_limit,
authority=authority,
existing_slots=existing_slots,
runtime_code=runtime_code,
cache_strategy=cache_strategy,
tx_generator=tx_generator,
)
|