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feat!: Add big int opcodes (without implementation) (AztecProtocol#4050)
Adds the biginteger opcode skeleton noir-lang/noir#4040 The PR adds ACIR opcodes for bigint operations. It does not provide any implantation of the opcodes, neither in BB, in the solver or in Brillig. --------- Co-authored-by: kevaundray <kevtheappdev@gmail.com>
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33 changes: 33 additions & 0 deletions
33
barretenberg/cpp/src/barretenberg/dsl/acir_format/bigint_constraint.cpp
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|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| #include "bigint_constraint.hpp" | ||
| #include "barretenberg/dsl/types.hpp" | ||
| #include "barretenberg/numeric/uint256/uint256.hpp" | ||
| #include "barretenberg/stdlib/primitives/bigfield/bigfield.hpp" | ||
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| namespace acir_format { | ||
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| template <typename Builder> void create_bigint_operations_constraint(Builder& builder, const BigIntOperation& input) | ||
| { | ||
| // TODO | ||
| (void)builder; | ||
| info(input); | ||
| } | ||
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| template void create_bigint_operations_constraint<UltraCircuitBuilder>(UltraCircuitBuilder& builder, | ||
| const BigIntOperation& input); | ||
| template void create_bigint_operations_constraint<GoblinUltraCircuitBuilder>(GoblinUltraCircuitBuilder& builder, | ||
| const BigIntOperation& input); | ||
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| template <typename Builder> | ||
| void create_bigint_from_le_bytes_constraint(Builder& builder, const BigIntFromLeBytes& input) | ||
| { | ||
| // TODO | ||
| (void)builder; | ||
| info(input); | ||
| } | ||
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| template void create_bigint_from_le_bytes_constraint<UltraCircuitBuilder>(UltraCircuitBuilder& builder, | ||
| const BigIntFromLeBytes& input); | ||
| template void create_bigint_from_le_bytes_constraint<GoblinUltraCircuitBuilder>(GoblinUltraCircuitBuilder& builder, | ||
| const BigIntFromLeBytes& input); | ||
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| } // namespace acir_format |
35 changes: 35 additions & 0 deletions
35
barretenberg/cpp/src/barretenberg/dsl/acir_format/bigint_constraint.hpp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| #pragma once | ||
| #include "barretenberg/dsl/types.hpp" | ||
| #include "barretenberg/serialize/msgpack.hpp" | ||
| #include <cstdint> | ||
| #include <vector> | ||
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| namespace acir_format { | ||
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| struct BigIntFromLeBytes { | ||
| std::vector<uint32_t> inputs; | ||
| std::vector<uint32_t> modulus; | ||
| uint32_t result; | ||
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| // For serialization, update with any new fields | ||
| MSGPACK_FIELDS(inputs, result); | ||
| friend bool operator==(BigIntFromLeBytes const& lhs, BigIntFromLeBytes const& rhs) = default; | ||
| }; | ||
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| enum BigIntOperationType { Add, Neg, Mul, Div }; | ||
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| struct BigIntOperation { | ||
| uint32_t lhs; | ||
| uint32_t rhs; | ||
| uint32_t result; | ||
| BigIntOperationType opcode; | ||
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| // For serialization, update with any new fields | ||
| MSGPACK_FIELDS(lhs, rhs, opcode, result); | ||
| friend bool operator==(BigIntOperation const& lhs, BigIntOperation const& rhs) = default; | ||
| }; | ||
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| template <typename Builder> void create_bigint_operations_constraint(Builder& builder, const BigIntOperation& input); | ||
| template <typename Builder> | ||
| void create_bigint_from_le_bytes_constraint(Builder& builder, const BigIntFromLeBytes& input); | ||
| } // namespace acir_format |
88 changes: 88 additions & 0 deletions
88
barretenberg/cpp/src/barretenberg/dsl/acir_format/bigint_constraint.test.cpp
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| Original file line number | Diff line number | Diff line change |
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| #include "bigint_constraint.hpp" | ||
| #include "acir_format.hpp" | ||
| #include "barretenberg/plonk/proof_system/types/proof.hpp" | ||
| #include "barretenberg/plonk/proof_system/verification_key/verification_key.hpp" | ||
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| #include <gtest/gtest.h> | ||
| #include <vector> | ||
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| namespace acir_format::tests { | ||
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| class BigIntTests : public ::testing::Test { | ||
| protected: | ||
| static void SetUpTestSuite() { bb::srs::init_crs_factory("../srs_db/ignition"); } | ||
| }; | ||
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| TEST_F(BigIntTests, TestBigIntConstraintDummy) | ||
| { | ||
| // Dummy Test: to be updated when big ints opcodes are implemented | ||
| BigIntOperation add_constraint{ | ||
| .lhs = 1, | ||
| .rhs = 2, | ||
| .result = 3, | ||
| .opcode = BigIntOperationType::Add, | ||
| }; | ||
| BigIntOperation neg_constraint{ | ||
| .lhs = 1, | ||
| .rhs = 2, | ||
| .result = 3, | ||
| .opcode = BigIntOperationType::Neg, | ||
| }; | ||
| BigIntOperation mul_constraint{ | ||
| .lhs = 1, | ||
| .rhs = 2, | ||
| .result = 3, | ||
| .opcode = BigIntOperationType::Mul, | ||
| }; | ||
| BigIntOperation div_constraint{ | ||
| .lhs = 1, | ||
| .rhs = 2, | ||
| .result = 3, | ||
| .opcode = BigIntOperationType::Div, | ||
| }; | ||
| BigIntFromLeBytes from_le_bytes_constraint{ | ||
| .inputs = { 0 }, | ||
| .modulus = { 23 }, | ||
| .result = 1, | ||
| }; | ||
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| AcirFormat constraint_system{ | ||
| .varnum = 4, | ||
| .public_inputs = {}, | ||
| .logic_constraints = {}, | ||
| .range_constraints = {}, | ||
| .sha256_constraints = {}, | ||
| .schnorr_constraints = {}, | ||
| .ecdsa_k1_constraints = {}, | ||
| .ecdsa_r1_constraints = {}, | ||
| .blake2s_constraints = {}, | ||
| .blake3_constraints = {}, | ||
| .keccak_constraints = {}, | ||
| .keccak_var_constraints = {}, | ||
| .keccak_permutations = {}, | ||
| .pedersen_constraints = {}, | ||
| .pedersen_hash_constraints = {}, | ||
| .fixed_base_scalar_mul_constraints = {}, | ||
| .ec_add_constraints = {}, | ||
| .ec_double_constraints = {}, | ||
| .recursion_constraints = {}, | ||
| .bigint_from_le_bytes_constraints = { from_le_bytes_constraint }, | ||
| .bigint_operations = { add_constraint, neg_constraint, mul_constraint, div_constraint }, | ||
| .constraints = {}, | ||
| .block_constraints = {}, | ||
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| }; | ||
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| WitnessVector witness{ 0, 0, 1 }; | ||
| auto builder = create_circuit(constraint_system, /*size_hint*/ 0, witness); | ||
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| auto composer = Composer(); | ||
| auto prover = composer.create_ultra_with_keccak_prover(builder); | ||
| auto proof = prover.construct_proof(); | ||
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| auto verifier = composer.create_ultra_with_keccak_verifier(builder); | ||
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| EXPECT_EQ(verifier.verify_proof(proof), true); | ||
| } | ||
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| } // namespace acir_format::tests |
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