feat: Brillig IR refactor

[sirasistant]

Split brillig IR in low level instructions and higher level codegen files that compose the instructions and restrict visibilities. This should not have any business logic change. This also fixes debug_show by only printing the low level instructions, previously we were printing both the high level codegen and the low level instructions and it was a mess to read.

[AztecBot]

Benchmark results

No metrics with a significant change found.

Detailed results

All benchmarks are run on txs on the Benchmarking contract on the repository. Each tx consists of a batch call to create_note and increment_balance, which guarantees that each tx has a private call, a nested private call, a public call, and a nested public call, as well as an emitted private note, an unencrypted log, and public storage read and write.

This benchmark source data is available in JSON format on S3 here.

Values are compared against data from master at commit 2e634796 and shown if the difference exceeds 1%.

L2 block published to L1

Each column represents the number of txs on an L2 block published to L1.

Metric	8 txs	32 txs	64 txs
l1_rollup_calldata_size_in_bytes	5,668	18,820	36,356
l1_rollup_calldata_gas	66,388	239,044	468,968
l1_rollup_execution_gas	667,069	953,954	1,336,325
l2_block_processing_time_in_ms	1,296 (-1%)	4,788 (-1%)	8,970
note_successful_decrypting_time_in_ms	149 (-29%)	502 (+3%)	972 (+3%)
note_trial_decrypting_time_in_ms	27.1 (+53%)	115 (+10%)	102 (+39%)
l2_block_building_time_in_ms	18,726 (+2%)	69,909	138,810
l2_block_rollup_simulation_time_in_ms	8,295 (+1%)	28,944 (-1%)	56,911
l2_block_public_tx_process_time_in_ms	10,410 (+2%)	40,904	81,799

L2 chain processing

Each column represents the number of blocks on the L2 chain where each block has 16 txs.

Metric	5 blocks	10 blocks
node_history_sync_time_in_ms	13,887 (-9%)	26,346 (+4%)
note_history_successful_decrypting_time_in_ms	1,235 (-11%)	2,492 (+5%)
note_history_trial_decrypting_time_in_ms	68.8 (-54%)	158 (+32%)
node_database_size_in_bytes	19,083,344	35,598,416 (-1%)
pxe_database_size_in_bytes	29,859	59,414

Circuits stats

Stats on running time and I/O sizes collected for every circuit run across all benchmarks.

Circuit	circuit_simulation_time_in_ms	circuit_input_size_in_bytes	circuit_output_size_in_bytes
private-kernel-init	286 (-3%)	44,370	27,700
private-kernel-ordering	219 (-4%)	52,324	14,326
base-parity	1,955 (+5%)	128	311
base-rollup	726	177,083	925
root-parity	1,369 (-14%)	1,244	311
root-rollup	69.7	4,487	789
private-kernel-inner	646 (-3%)	73,229	27,700
public-kernel-app-logic	453 (-2%)	35,262	28,215
public-kernel-tail	178 (-1%)	40,926	28,215
merge-rollup	8.44 (+2%)	2,696	925

Tree insertion stats

The duration to insert a fixed batch of leaves into each tree type.

Metric	1 leaves	16 leaves	64 leaves	128 leaves	512 leaves	1024 leaves	2048 leaves	4096 leaves	32 leaves
batch_insert_into_append_only_tree_16_depth_ms	9.97 (-2%)	15.9 (-2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_count	16.8	31.6	N/A	N/A	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_16_depth_hash_ms	0.581 (-2%)	0.493 (-2%)	N/A	N/A	N/A	N/A	N/A	N/A	N/A
batch_insert_into_append_only_tree_32_depth_ms	N/A	N/A	46.0 (-1%)	71.6 (-4%)	230 (-1%)	444 (-4%)	867	1,716	N/A
batch_insert_into_append_only_tree_32_depth_hash_count	N/A	N/A	96.0	159	543	1,055	2,079	4,127	N/A
batch_insert_into_append_only_tree_32_depth_hash_ms	N/A	N/A	0.472 (-1%)	0.442 (-4%)	0.419 (-1%)	0.415 (-4%)	0.413	0.410	N/A
batch_insert_into_indexed_tree_20_depth_ms	N/A	N/A	53.6 (-1%)	106 (-2%)	335	659 (-3%)	1,311	2,607	N/A
batch_insert_into_indexed_tree_20_depth_hash_count	N/A	N/A	104	207	691	1,363	2,707	5,395	N/A
batch_insert_into_indexed_tree_20_depth_hash_ms	N/A	N/A	0.477 (-1%)	0.478 (-2%)	0.456	0.454 (-3%)	0.454	0.452	N/A
batch_insert_into_indexed_tree_40_depth_ms	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	61.1 (-2%)
batch_insert_into_indexed_tree_40_depth_hash_count	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	109
batch_insert_into_indexed_tree_40_depth_hash_ms	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	0.536 (-1%)

Miscellaneous

Transaction sizes based on how many contract classes are registered in the tx.

Metric	0 registered classes
tx_size_in_bytes	22,014

Transaction processing duration by data writes.

Metric	0 new note hashes	1 new note hashes
tx_pxe_processing_time_ms	3,292 (-2%)	1,764 (-3%)

Metric	0 public data writes	1 public data writes
tx_sequencer_processing_time_ms	13.0 (-2%)	1,267 (-1%)

[kevaundray]

LGTM -- a nit regarding a legend was discussed on slack, but not blocking