sha256_mem.hpp

Go to the documentation of this file.

// AUTOGENERATED FILE
#pragma once
 
#include <string_view>
 
#include "barretenberg/common/bb_bench.hpp"
#include "barretenberg/relations/relation_parameters.hpp"
#include "barretenberg/relations/relation_types.hpp"
#include "barretenberg/vm2/generated/columns.hpp"
 
namespace bb::avm2 {
 
template <typename FF_> class sha256_memImpl {
  public:
    using FF = FF_;
 
    static constexpr std::array<size_t, 50> SUBRELATION_PARTIAL_LENGTHS = { 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
                                                                            3, 5, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
                                                                            3, 3, 3, 3, 3, 3, 3, 2, 3, 5, 3, 3, 3,
                                                                            3, 4, 4, 3, 3, 3, 5, 3, 3, 3, 2 };
 
    template <typename AllEntities> inline static bool skip(const AllEntities& in)
    {
        using C = ColumnAndShifts;
 
        return (in.get(C::sha256_sel)).is_zero();
    }
 
    template <typename ContainerOverSubrelations, typename AllEntities>
    void static accumulate(ContainerOverSubrelations& evals,
                           const AllEntities& in,
                           [[maybe_unused]] const RelationParameters<FF>&,
                           [[maybe_unused]] const FF& scaling_factor);
};
 
template <typename FF> class sha256_mem : public Relation<sha256_memImpl<FF>> {
  public:
    static constexpr const std::string_view NAME = "sha256_mem";
 
    // Subrelation indices constants, to be used in tests.
    static constexpr size_t SR_SEL_ON_START_OR_END = 3;
    static constexpr size_t SR_TRACE_CONTINUITY = 4;
    static constexpr size_t SR_START_AFTER_LATCH = 5;
    static constexpr size_t SR_CONTINUITY_EXEC_CLK = 6;
    static constexpr size_t SR_CONTINUITY_SPACE_ID = 7;
    static constexpr size_t SR_CONTINUITY_OUTPUT_ADDR = 8;
    static constexpr size_t SR_CONTINUITY_INPUT_ADDR = 9;
    static constexpr size_t SR_START_OR_END_MEM = 16;
    static constexpr size_t SR_BATCH_ZERO_CHECK_READ = 35;
    static constexpr size_t SR_BATCH_ENFORCE_ZERO_WRITE = 36;
    static constexpr size_t SR_INPUT_ROUND_CTR_START_COND = 37;
    static constexpr size_t SR_INPUT_ROUND_CTR_DECR_COND = 38;
    static constexpr size_t SR_SEL_IS_INPUT_ROUND_ZERO_CHECK = 40;
    static constexpr size_t SR_INPUT_TAG_DIFF_CHECK = 45;
    static constexpr size_t SR_TAG_ERROR_INIT = 47;
    static constexpr size_t SR_TAG_ERROR_PROPAGATION = 48;
 
    static std::string get_subrelation_label(size_t index)
    {
        switch (index) {
        case SR_SEL_ON_START_OR_END:
            return "SEL_ON_START_OR_END";
        case SR_TRACE_CONTINUITY:
            return "TRACE_CONTINUITY";
        case SR_START_AFTER_LATCH:
            return "START_AFTER_LATCH";
        case SR_CONTINUITY_EXEC_CLK:
            return "CONTINUITY_EXEC_CLK";
        case SR_CONTINUITY_SPACE_ID:
            return "CONTINUITY_SPACE_ID";
        case SR_CONTINUITY_OUTPUT_ADDR:
            return "CONTINUITY_OUTPUT_ADDR";
        case SR_CONTINUITY_INPUT_ADDR:
            return "CONTINUITY_INPUT_ADDR";
        case SR_START_OR_END_MEM:
            return "START_OR_END_MEM";
        case SR_BATCH_ZERO_CHECK_READ:
            return "BATCH_ZERO_CHECK_READ";
        case SR_BATCH_ENFORCE_ZERO_WRITE:
            return "BATCH_ENFORCE_ZERO_WRITE";
        case SR_INPUT_ROUND_CTR_START_COND:
            return "INPUT_ROUND_CTR_START_COND";
        case SR_INPUT_ROUND_CTR_DECR_COND:
            return "INPUT_ROUND_CTR_DECR_COND";
        case SR_SEL_IS_INPUT_ROUND_ZERO_CHECK:
            return "SEL_IS_INPUT_ROUND_ZERO_CHECK";
        case SR_INPUT_TAG_DIFF_CHECK:
            return "INPUT_TAG_DIFF_CHECK";
        case SR_TAG_ERROR_INIT:
            return "TAG_ERROR_INIT";
        case SR_TAG_ERROR_PROPAGATION:
            return "TAG_ERROR_PROPAGATION";
        }
        return std::to_string(index);
    }
};
 
} // namespace bb::avm2