test_shifts_beyond_word_size()

Documentation for tests/benchmark/compute/instruction/test_bitwise.py::test_shifts_beyond_word_size@26332146.

Generate fixtures for these test cases for Amsterdam with:

fill -v tests/benchmark/compute/instruction/test_bitwise.py::test_shifts_beyond_word_size --gas-benchmark-values 1

Benchmark shifts by at least the 256-bit word size.

Source code in tests/benchmark/compute/instruction/test_bitwise.py

@pytest.mark.parametrize(
    "opcode,initial_value",
    [
        pytest.param(Op.SHL, 2**256 - 1),
        pytest.param(Op.SHR, 2**256 - 1),
        pytest.param(Op.SAR, 2**255 - 1),
        pytest.param(Op.SAR, 2**256 - 1),
    ],
)
@pytest.mark.parametrize(
    "shift",
    [
        pytest.param(256, id="word size"),
        pytest.param(2**255, id="unrepresentable as a bit index"),
    ],
)
def test_shifts_beyond_word_size(
    benchmark_test: BenchmarkTestFiller,
    opcode: Op,
    shift: int,
    initial_value: int,
) -> None:
    """
    Benchmark shifts by at least the 256-bit word size.
    """
    benchmark_test(
        target_opcode=opcode,
        code_generator=JumpLoopGenerator(
            setup=Op.PUSH32[initial_value],
            attack_block=Op.PUSH32[shift] + opcode,
        ),
    )

Parametrized Test Cases

This test generates 8 parametrized test cases across 3 forks.