feat(avm): basic AVM-ACVM interoperability

avm-transpiler/src/instructions.rs

@@ -8,7 +8,6 @@ pub const ALL_DIRECT: u8 = 0b00000000;
 pub const ZEROTH_OPERAND_INDIRECT: u8 = 0b00000001;
 pub const FIRST_OPERAND_INDIRECT: u8 = 0b00000010;
 pub const SECOND_OPERAND_INDIRECT: u8 = 0b00000100;
-pub const ZEROTH_FIRST_OPERANDS_INDIRECT: u8 = ZEROTH_OPERAND_INDIRECT | FIRST_OPERAND_INDIRECT;
 
 /// A simple representation of an AVM instruction for the purpose
 /// of generating an AVM bytecode from Brillig.

avm-transpiler/src/transpile.rs

@@ -84,9 +84,6 @@ pub fn brillig_to_avm(brillig: &Brillig) -> Vec<u8> {
                     BinaryIntOp::Xor => AvmOpcode::XOR,
                     BinaryIntOp::Shl => AvmOpcode::SHL,
                     BinaryIntOp::Shr => AvmOpcode::SHR,
-                    _ => panic!(
-                        "Transpiler doesn't know how to process {:?}", brillig_instr
-                    ),
                 };
                 avm_instrs.push(AvmInstruction {
                     opcode: avm_opcode,

avm-transpiler/src/transpile_contract.rs

@@ -1,6 +1,5 @@
 use base64::Engine;
 use log::info;
-use regex::Regex;
 use serde::{Deserialize, Serialize};
 
 use acvm::acir::circuit::Program;

noir-projects/noir-contracts/contracts/avm_test_contract/src/main.nr

@@ -26,9 +26,11 @@ contract AvmTest {
     // Libs
     use dep::aztec::prelude::Map;
     use dep::aztec::state_vars::PublicMutable;
+    use dep::aztec::history::nullifier_inclusion::prove_nullifier_inclusion;
     use dep::aztec::protocol_types::{
         address::{AztecAddress, EthAddress}, constants::L1_TO_L2_MESSAGE_LENGTH,
-        contract_instance::ContractInstance
+        contract_instance::ContractInstance,
+        hash::silo_nullifier,
     };
     use dep::aztec::oracle::get_contract_instance::{get_contract_instance_avm, get_contract_instance_internal_avm};
     use dep::aztec::protocol_types::abis::function_selector::FunctionSelector;
@@ -174,6 +176,60 @@ contract AvmTest {
         dep::std::hash::pedersen_hash_with_separator(data, 20)
     }
 
+    /************************************************************************
+     * ACVM interoperability
+     ************************************************************************/
+    #[aztec(public)]
+    fn constant_field_acvm() -> pub Field {
+        123456
+    }
+
+    #[aztec(public-vm)]
+    fn constant_field_avm() -> pub Field {
+        123456
+    }
+
+    #[aztec(public)]
+    fn new_nullifier_acvm(nullifier: Field) -> pub Field {
+        context.push_new_nullifier(nullifier, 0);
+    }
+
+    #[aztec(public)]
+    fn assert_unsiloed_nullifier_acvm(nullifier: Field) {
+        // ACVM requires siloed nullifier.
+        let siloed_nullifier = silo_nullifier(context.this_address(), nullifier);
+        prove_nullifier_inclusion(siloed_nullifier, context);
+    }
+
+    #[aztec(public-vm)]
+    fn call_acvm_from_avm() -> pub Field {
+        let data_to_return: [Field; RETURN_VALUES_LENGTH] = context.call_public_function(
+            context.this_address(),
+            FunctionSelector::from_signature("constant_field_acvm()"),
+            []
+        );
+        data_to_return[0]
+    }
+
+    #[aztec(public)]
+    fn call_avm_from_acvm() -> pub Field {
+        let data_to_return: [Field; RETURN_VALUES_LENGTH] = context.call_public_function(
+            context.this_address(),
+            FunctionSelector::from_signature("constant_field_avm()"),
+            []
+        );
+        data_to_return[0]
+    }
+
+    #[aztec(public-vm)]
+    fn avm_to_acvm_call(selector: FunctionSelector, args: Field) {
+        context.call_public_function(
+            context.this_address(),
+            selector,
+            [args]
+        );
+    }
+
     /************************************************************************
      * Contract instance
      ************************************************************************/

yarn-project/end-to-end/src/e2e_avm_simulator.test.ts

@@ -1,4 +1,4 @@
-import { AztecAddress, Fr, TxStatus, type Wallet } from '@aztec/aztec.js';
+import { AztecAddress, Fr, FunctionSelector, TxStatus, type Wallet } from '@aztec/aztec.js';
 import { AvmInitializerTestContract, AvmTestContract } from '@aztec/noir-contracts.js';
 
 import { jest } from '@jest/globals';
@@ -64,6 +64,40 @@ describe('e2e_avm_simulator', () => {
         expect(tx.status).toEqual(TxStatus.MINED);
       });
     });
+
+    describe('ACVM interoperability', () => {
+      it('Can execute ACVM function among AVM functions', async () => {
+        expect(await avmContract.methods.constant_field_acvm().simulate()).toEqual([123456n, 0n, 0n, 0n]);
+      });
+
+      it('Can call AVM function from ACVM', async () => {
+        expect(await avmContract.methods.call_avm_from_acvm().simulate()).toEqual([123456n, 0n, 0n, 0n]);
+      });
+
+      it('Can call ACVM function from AVM', async () => {
+        expect(await avmContract.methods.call_acvm_from_avm().simulate()).toEqual([123456n, 0n, 0n, 0n]);
+      });
+
+      // Cannot work because ACVM does not support pending nullifiers.
+      // it('AVM->ACVM nullifiers work (pending)', async () => {
+      //   await avmContract.methods.avm_to_acvm_nullifier().send().wait();
+      // });
+
+      it('AVM sees settled nullifiers by ACVM', async () => {
+        const nullifier = new Fr(123456);
+        await avmContract.methods.new_nullifier(nullifier).send().wait();
+        await avmContract.methods.assert_unsiloed_nullifier_acvm(nullifier).send().wait();
+      });
+
+      it('AVM nested call to ACVM sees settled nullifiers', async () => {
+        const nullifier = new Fr(123456);
+        await avmContract.methods.new_nullifier(nullifier).send().wait();
+        await avmContract.methods
+          .avm_to_acvm_call(FunctionSelector.fromSignature('assert_unsiloed_nullifier_acvm(Field)'), nullifier)
+          .send()
+          .wait();
+      });
+    });
   });
 
   describe('AvmInitializerTestContract', () => {

yarn-project/sequencer-client/src/sequencer/abstract_phase_manager.ts

@@ -230,8 +230,8 @@ export abstract class AbstractPhaseManager {
       while (executionStack.length) {
         const current = executionStack.pop()!;
         const isExecutionRequest = !isPublicExecutionResult(current);
-
         const sideEffectCounter = lastSideEffectCounter(tx) + 1;
+
         const result = isExecutionRequest
           ? await this.publicExecutor.simulate(current, this.globalVariables, sideEffectCounter)
           : current;

yarn-project/simulator/src/avm/avm_execution_environment.ts

@@ -48,15 +48,15 @@ export class AvmExecutionEnvironment {
   }
 
   public deriveEnvironmentForNestedCall(
-    address: AztecAddress,
+    targetAddress: AztecAddress,
     calldata: Fr[],
     temporaryFunctionSelector: FunctionSelector = FunctionSelector.empty(),
   ): AvmExecutionEnvironment {
     return new AvmExecutionEnvironment(
-      address,
-      /*storageAddress=*/ address,
+      targetAddress,
+      /*storageAddress=*/ targetAddress,
       this.origin,
-      this.sender,
+      this.address,
       this.portal,
       this.feePerL1Gas,
       this.feePerL2Gas,

yarn-project/simulator/src/avm/avm_simulator.test.ts

@@ -10,6 +10,7 @@ import { AvmTestContractArtifact } from '@aztec/noir-contracts.js';
 import { jest } from '@jest/globals';
 import { strict as assert } from 'assert';
 
+import { isAvmBytecode } from '../public/transitional_adaptors.js';
 import { AvmMachineState } from './avm_machine_state.js';
 import { TypeTag } from './avm_memory_types.js';
 import { AvmSimulator } from './avm_simulator.js';
@@ -23,7 +24,6 @@ import {
 } from './fixtures/index.js';
 import { Add, CalldataCopy, Return } from './opcodes/index.js';
 import { encodeToBytecode } from './serialization/bytecode_serialization.js';
-import { isAvmBytecode } from './temporary_executor_migration.js';
 
 describe('AVM simulator: injected bytecode', () => {
   let calldata: Fr[];

yarn-project/simulator/src/avm/journal/journal.ts

@@ -44,18 +44,19 @@ export class AvmPersistableStateManager {
   /** Reference to node storage */
   public readonly hostStorage: HostStorage;
 
+  // TODO: make members private once this is not used in transitional_adaptors.ts.
   /** World State */
   /** Public storage, including cached writes */
-  private publicStorage: PublicStorage;
+  public publicStorage: PublicStorage;
   /** Nullifier set, including cached/recently-emitted nullifiers */
-  private nullifiers: Nullifiers;
+  public nullifiers: Nullifiers;
 
   /** World State Access Trace */
-  private trace: WorldStateAccessTrace;
+  public trace: WorldStateAccessTrace;
 
   /** Accrued Substate **/
-  private newL1Messages: L2ToL1Message[] = [];
-  private newLogs: UnencryptedL2Log[] = [];
+  public newL1Messages: L2ToL1Message[] = [];
+  public newLogs: UnencryptedL2Log[] = [];
 
   constructor(hostStorage: HostStorage, parent?: AvmPersistableStateManager) {
     this.hostStorage = hostStorage;

yarn-project/simulator/src/avm/opcodes/external_calls.ts

@@ -1,10 +1,16 @@
 import { FunctionSelector } from '@aztec/circuits.js';
 import { padArrayEnd } from '@aztec/foundation/collection';
 
+import { executePublicFunction } from '../../public/executor.js';
+import {
+  adjustAvmContextFromPublicExecutionResult,
+  convertPublicExecutionResult,
+  createPublicExecutionContext,
+} from '../../public/transitional_adaptors.js';
 import type { AvmContext } from '../avm_context.js';
 import { gasLeftToGas, sumGas } from '../avm_gas.js';
 import { Field, Uint8 } from '../avm_memory_types.js';
-import { AvmSimulator } from '../avm_simulator.js';
+import { type AvmContractCallResults } from '../avm_message_call_result.js';
 import { Opcode, OperandType } from '../serialization/instruction_serialization.js';
 import { Addressing } from './addressing_mode.js';
 import { Instruction } from './instruction.js';
@@ -61,15 +67,27 @@ abstract class ExternalCall extends Instruction {
     const totalGas = sumGas(this.gasCost(memoryOperations), allocatedGas);
     context.machineState.consumeGas(totalGas);
 
+    // TRANSITIONAL: This should be removed once the AVM is fully operational and the public executor is gone.
     const nestedContext = context.createNestedContractCallContext(
       callAddress.toFr(),
       calldata,
       allocatedGas,
       this.type,
       FunctionSelector.fromField(functionSelector),
     );
+    const pxContext = createPublicExecutionContext(nestedContext, calldata);
+    const pxResults = await executePublicFunction(pxContext, /*nested=*/ true);
+    const nestedCallResults: AvmContractCallResults = convertPublicExecutionResult(pxResults);
+    adjustAvmContextFromPublicExecutionResult(nestedContext, pxResults);
+    const nestedPersistableState = nestedContext.persistableState;
+    // const nestedContext = context.createNestedContractCallContext(
+    //   callAddress.toFr(),
+    //   calldata,
+    //   FunctionSelector.fromField(functionSelector),
+    // );
+    // const nestedCallResults: AvmContractCallResults = await new AvmSimulator(nestedContext).execute();
+    // const nestedPersistableState = nestedContext.persistableState;
 
-    const nestedCallResults = await new AvmSimulator(nestedContext).execute();
     const success = !nestedCallResults.reverted;
 
     // We only take as much data as was specified in the return size and pad with zeroes if the return data is smaller
@@ -90,9 +108,9 @@ abstract class ExternalCall extends Instruction {
 
     // TODO: Should we merge the changes from a nested call in the case of a STATIC call?
     if (success) {
-      context.persistableState.acceptNestedCallState(nestedContext.persistableState);
+      context.persistableState.acceptNestedCallState(nestedPersistableState);
     } else {
-      context.persistableState.rejectNestedCallState(nestedContext.persistableState);
+      context.persistableState.rejectNestedCallState(nestedPersistableState);
     }
 
     memory.assert(memoryOperations);