BE-231: HashQL: Add InstSimplify pass for MIR instruction simplification and constant folding #8206

indietyp · 2025-12-21T18:33:33Z

🌟 What is the purpose of this PR?

This PR adds a new MIR transformation pass called InstSimplify that performs algebraic simplifications and constant folding on MIR instructions. The pass optimizes code by replacing complex expressions with simpler equivalents when operands are constants or satisfy algebraic identities.

🔍 What does this change?

Adds a new InstSimplify pass that performs three categories of simplifications:
- Constant folding (e.g., const 2 + const 3 → const 5)
- Algebraic identities (e.g., x && true → x, x == true → x)
- Identical operand patterns (e.g., x & x → x, x == x → true)
Implements block parameter propagation to enable constant propagation across block boundaries
Adds comprehensive test suite with unit tests and integration tests
Integrates the pass into the MIR compilation pipeline
Adds support for TryCloneIn for IdVec to enable efficient cloning

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

are internal and do not require a docs change

🕸️ Does this require a change to the Turbo Graph?

The changes in this PR:

do not affect the execution graph

🛡 What tests cover this?

Unit tests for each simplification pattern
Integration tests for the pass as a whole
Tests for block parameter propagation and constant forwarding

cursor · 2025-12-21T18:33:39Z

PR Summary

Adds a new MIR transform and integrates it end-to-end.

New pass: InstSimplify (constant folding, boolean/bitwise identities, identical-operand simplifications, block param propagation); exported via transform::InstSimplify
Pipeline integration: compiletest runs CFG -> SROA -> InstSimplify -> DSE; new suite mir/pass/transform/inst-simplify and registry entries
Benchmarks: new inst_simplify group; pipeline benches updated to include the pass
Tests: extensive UI/spec tests for simplification patterns and block-param propagation; updated DSE snapshots (e.g., 10 == 20 → 0)
Infra tweaks: IdVec gains TryCloneIn; BasicBlocks::Predecessors iterator now Clone; Place::type_id now takes LocalSlice and is must_use; TerminatorKind::is_effectful added; dbe truncation now invalidates CFG

^{Written by Cursor Bugbot for commit 7b8639a. This will update automatically on new commits. Configure here.}

indietyp · 2025-12-21T18:33:52Z

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
Learn more

This stack of pull requests is managed by Graphite. Learn more about stacking.

codecov · 2025-12-21T18:38:50Z

Codecov Report

❌ Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.01%. Comparing base (90ffaed) to head (7b8639a).

Files with missing lines	Patch %	Lines
libs/@local/hashql/core/src/id/vec.rs	0.00%	6 Missing ⚠️

Additional details and impacted files

@@                              Coverage Diff                              @@
##           bm/be-254-experiment-around-with-codspeed    #8206      +/-   ##
=============================================================================
- Coverage                                      59.02%   59.01%   -0.01%     
=============================================================================
  Files                                           1187     1187              
  Lines                                         112497   112499       +2     
  Branches                                        4939     4939              
=============================================================================
- Hits                                           66396    66392       -4     
- Misses                                         45343    45349       +6     
  Partials                                         758      758

Flag	Coverage Δ
apps.hash-ai-worker-ts	`1.40% <ø> (ø)`
apps.hash-api	`0.00% <ø> (ø)`
local.hash-graph-sdk	`10.88% <ø> (ø)`
local.hash-isomorphic-utils	`0.00% <ø> (ø)`
rust.hash-graph-api	`2.89% <ø> (ø)`
rust.hashql-ast	`87.25% <ø> (ø)`
rust.hashql-core	`82.30% <0.00%> (-0.03%)`	⬇️
rust.hashql-eval	`68.54% <ø> (ø)`
rust.hashql-hir	`89.10% <ø> (ø)`
rust.hashql-syntax-jexpr	`94.05% <ø> (ø)`

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

codspeed-hq · 2025-12-21T18:39:52Z

CodSpeed Performance Report

Merging #8206 will degrade performance by 10.77%

_{Comparing bm/be-231-hashql-peephole-optimization (7b8639a) with bm/be-254-experiment-around-with-codspeed (3326b24)¹}

Summary

❌ 2 (👁 2) regressions
✅ 11 untouched
🆕 4 new

Benchmarks breakdown

	Benchmark	`BASE`	`HEAD`	Efficiency
👁	`complex`	60.2 µs	67.4 µs	-10.65%
🆕	`linear`	N/A	9.6 µs	N/A
🆕	`foldable`	N/A	9 µs	N/A
👁	`diamond`	44.1 µs	49.4 µs	-10.77%
🆕	`diamond`	N/A	11.6 µs	N/A
🆕	`complex`	N/A	17.4 µs	N/A

No successful run was found on bm/be-254-experiment-around-with-codspeed (90ffaed) during the generation of this report, so c704484 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

github-actions · 2025-12-21T22:41:45Z

Benchmark results

@rust/hash-graph-benches – Integrations

policy_resolution_large

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 2002	$$26.8 \mathrm{ms} \pm 145 \mathrm{μs}\left({\color{lightgreen}-8.895 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$3.25 \mathrm{ms} \pm 16.9 \mathrm{μs}\left({\color{gray}-0.478 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 1001	$$12.1 \mathrm{ms} \pm 77.2 \mathrm{μs}\left({\color{gray}-4.262 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: high, policies: 3314	$$42.0 \mathrm{ms} \pm 269 \mathrm{μs}\left({\color{gray}-2.210 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: low, policies: 1	$$13.9 \mathrm{ms} \pm 80.5 \mathrm{μs}\left({\color{gray}-3.739 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: medium, policies: 1526	$$23.1 \mathrm{ms} \pm 140 \mathrm{μs}\left({\color{gray}-2.009 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 2078	$$26.3 \mathrm{ms} \pm 182 \mathrm{μs}\left({\color{lightgreen}-38.608 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$3.66 \mathrm{ms} \pm 15.5 \mathrm{μs}\left({\color{lightgreen}-81.933 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 1033	$$11.2 \mathrm{ms} \pm 71.0 \mathrm{μs}\left({\color{lightgreen}-63.206 \mathrm{\%}}\right) $$	Flame Graph

policy_resolution_medium

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 102	$$3.63 \mathrm{ms} \pm 17.0 \mathrm{μs}\left({\color{gray}-1.000 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$2.87 \mathrm{ms} \pm 12.5 \mathrm{μs}\left({\color{gray}1.24 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 51	$$3.17 \mathrm{ms} \pm 16.3 \mathrm{μs}\left({\color{gray}-1.631 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: high, policies: 269	$$5.00 \mathrm{ms} \pm 22.5 \mathrm{μs}\left({\color{gray}-0.095 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: low, policies: 1	$$3.42 \mathrm{ms} \pm 17.5 \mathrm{μs}\left({\color{gray}0.915 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: medium, policies: 107	$$3.93 \mathrm{ms} \pm 20.7 \mathrm{μs}\left({\color{gray}0.010 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 133	$$4.23 \mathrm{ms} \pm 15.6 \mathrm{μs}\left({\color{gray}-0.599 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$3.31 \mathrm{ms} \pm 16.4 \mathrm{μs}\left({\color{gray}1.76 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 63	$$3.86 \mathrm{ms} \pm 20.4 \mathrm{μs}\left({\color{gray}-0.334 \mathrm{\%}}\right) $$	Flame Graph

policy_resolution_none

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 2	$$2.56 \mathrm{ms} \pm 10.5 \mathrm{μs}\left({\color{red}7.71 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$2.49 \mathrm{ms} \pm 12.6 \mathrm{μs}\left({\color{red}6.53 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 1	$$2.60 \mathrm{ms} \pm 12.3 \mathrm{μs}\left({\color{red}7.92 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 8	$$2.76 \mathrm{ms} \pm 12.0 \mathrm{μs}\left({\color{gray}4.96 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$2.67 \mathrm{ms} \pm 12.2 \mathrm{μs}\left({\color{red}5.14 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 3	$$2.88 \mathrm{ms} \pm 15.0 \mathrm{μs}\left({\color{red}6.92 \mathrm{\%}}\right) $$	Flame Graph

policy_resolution_small

Function	Value	Mean	Flame graphs
resolve_policies_for_actor	user: empty, selectivity: high, policies: 52	$$2.92 \mathrm{ms} \pm 14.0 \mathrm{μs}\left({\color{red}5.82 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: low, policies: 1	$$2.60 \mathrm{ms} \pm 9.39 \mathrm{μs}\left({\color{red}6.77 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: empty, selectivity: medium, policies: 25	$$2.77 \mathrm{ms} \pm 13.0 \mathrm{μs}\left({\color{red}6.18 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: high, policies: 94	$$3.27 \mathrm{ms} \pm 18.5 \mathrm{μs}\left({\color{gray}4.19 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: low, policies: 1	$$2.85 \mathrm{ms} \pm 12.7 \mathrm{μs}\left({\color{red}5.87 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: seeded, selectivity: medium, policies: 26	$$3.04 \mathrm{ms} \pm 14.8 \mathrm{μs}\left({\color{gray}4.46 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: high, policies: 66	$$3.17 \mathrm{ms} \pm 13.0 \mathrm{μs}\left({\color{red}6.37 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: low, policies: 1	$$2.81 \mathrm{ms} \pm 12.6 \mathrm{μs}\left({\color{red}5.91 \mathrm{\%}}\right) $$	Flame Graph
resolve_policies_for_actor	user: system, selectivity: medium, policies: 29	$$3.05 \mathrm{ms} \pm 12.6 \mathrm{μs}\left({\color{red}5.45 \mathrm{\%}}\right) $$	Flame Graph

read_scaling_complete

Function	Value	Mean	Flame graphs
entity_by_id;one_depth	1 entities	$$38.5 \mathrm{ms} \pm 150 \mathrm{μs}\left({\color{gray}-1.121 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	10 entities	$$76.0 \mathrm{ms} \pm 379 \mathrm{μs}\left({\color{gray}-0.607 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	25 entities	$$44.3 \mathrm{ms} \pm 180 \mathrm{μs}\left({\color{gray}1.64 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	5 entities	$$46.1 \mathrm{ms} \pm 263 \mathrm{μs}\left({\color{gray}1.01 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;one_depth	50 entities	$$54.4 \mathrm{ms} \pm 238 \mathrm{μs}\left({\color{gray}0.857 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	1 entities	$$40.5 \mathrm{ms} \pm 154 \mathrm{μs}\left({\color{gray}-0.831 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	10 entities	$$419 \mathrm{ms} \pm 767 \mathrm{μs}\left({\color{gray}0.547 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	25 entities	$$95.8 \mathrm{ms} \pm 360 \mathrm{μs}\left({\color{red}8.26 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	5 entities	$$85.6 \mathrm{ms} \pm 333 \mathrm{μs}\left({\color{gray}0.734 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;two_depth	50 entities	$$284 \mathrm{ms} \pm 658 \mathrm{μs}\left({\color{lightgreen}-7.448 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	1 entities	$$14.9 \mathrm{ms} \pm 74.6 \mathrm{μs}\left({\color{gray}1.19 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	10 entities	$$15.0 \mathrm{ms} \pm 64.9 \mathrm{μs}\left({\color{gray}1.28 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	25 entities	$$15.4 \mathrm{ms} \pm 65.1 \mathrm{μs}\left({\color{gray}2.05 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	5 entities	$$14.9 \mathrm{ms} \pm 71.1 \mathrm{μs}\left({\color{gray}0.968 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id;zero_depth	50 entities	$$17.9 \mathrm{ms} \pm 86.6 \mathrm{μs}\left({\color{gray}3.81 \mathrm{\%}}\right) $$	Flame Graph

read_scaling_linkless

Function	Value	Mean	Flame graphs
entity_by_id	1 entities	$$14.8 \mathrm{ms} \pm 55.7 \mathrm{μs}\left({\color{gray}0.678 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10 entities	$$14.7 \mathrm{ms} \pm 72.3 \mathrm{μs}\left({\color{gray}0.863 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	100 entities	$$14.7 \mathrm{ms} \pm 56.3 \mathrm{μs}\left({\color{gray}0.096 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	1000 entities	$$15.2 \mathrm{ms} \pm 74.7 \mathrm{μs}\left({\color{gray}-0.362 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10000 entities	$$22.0 \mathrm{ms} \pm 134 \mathrm{μs}\left({\color{gray}-1.581 \mathrm{\%}}\right) $$	Flame Graph

representative_read_entity

Function	Value	Mean	Flame graphs
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/block/v/1`	$$29.4 \mathrm{ms} \pm 260 \mathrm{μs}\left({\color{gray}-3.979 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/book/v/1`	$$29.9 \mathrm{ms} \pm 291 \mathrm{μs}\left({\color{gray}0.282 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/building/v/1`	$$29.9 \mathrm{ms} \pm 276 \mathrm{μs}\left({\color{gray}4.08 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/organization/v/1`	$$29.4 \mathrm{ms} \pm 301 \mathrm{μs}\left({\color{gray}-1.010 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/page/v/2`	$$28.5 \mathrm{ms} \pm 292 \mathrm{μs}\left({\color{gray}-4.842 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/person/v/1`	$$29.8 \mathrm{ms} \pm 261 \mathrm{μs}\left({\color{gray}-0.746 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/playlist/v/1`	$$28.4 \mathrm{ms} \pm 255 \mathrm{μs}\left({\color{gray}0.461 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/song/v/1`	$$29.8 \mathrm{ms} \pm 269 \mathrm{μs}\left({\color{gray}2.42 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: `https://blockprotocol.org/@alice/types/entity-type/uk-address/v/1`	$$29.4 \mathrm{ms} \pm 256 \mathrm{μs}\left({\color{gray}0.375 \mathrm{\%}}\right) $$	Flame Graph

representative_read_entity_type

Function	Value	Mean	Flame graphs
get_entity_type_by_id	Account ID: `bf5a9ef5-dc3b-43cf-a291-6210c0321eba`	$$8.01 \mathrm{ms} \pm 28.6 \mathrm{μs}\left({\color{gray}-0.625 \mathrm{\%}}\right) $$	Flame Graph

representative_read_multiple_entities

Function	Value	Mean	Flame graphs
entity_by_property	traversal_paths=0	0	$$45.5 \mathrm{ms} \pm 244 \mathrm{μs}\left({\color{gray}-3.813 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=255	1,resolve_depths=inherit:1;values:255;properties:255;links:127;link_dests:126;type:true	$$93.7 \mathrm{ms} \pm 417 \mathrm{μs}\left({\color{gray}-1.138 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:0;link_dests:0;type:false	$$51.1 \mathrm{ms} \pm 244 \mathrm{μs}\left({\color{gray}-3.760 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:1;link_dests:0;type:true	$$59.0 \mathrm{ms} \pm 233 \mathrm{μs}\left({\color{gray}-3.498 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:2;links:1;link_dests:0;type:true	$$68.8 \mathrm{ms} \pm 297 \mathrm{μs}\left({\color{gray}0.949 \mathrm{\%}}\right) $$
entity_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:2;properties:2;links:1;link_dests:0;type:true	$$75.5 \mathrm{ms} \pm 347 \mathrm{μs}\left({\color{gray}-0.516 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=0	0	$$49.5 \mathrm{ms} \pm 246 \mathrm{μs}\left({\color{gray}-1.842 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=255	1,resolve_depths=inherit:1;values:255;properties:255;links:127;link_dests:126;type:true	$$76.3 \mathrm{ms} \pm 324 \mathrm{μs}\left({\color{gray}-2.707 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:0;link_dests:0;type:false	$$56.3 \mathrm{ms} \pm 304 \mathrm{μs}\left({\color{gray}-0.008 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:0;links:1;link_dests:0;type:true	$$63.1 \mathrm{ms} \pm 331 \mathrm{μs}\left({\color{gray}-3.601 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:0;properties:2;links:1;link_dests:0;type:true	$$65.3 \mathrm{ms} \pm 296 \mathrm{μs}\left({\color{gray}-2.184 \mathrm{\%}}\right) $$
link_by_source_by_property	traversal_paths=2	1,resolve_depths=inherit:0;values:2;properties:2;links:1;link_dests:0;type:true	$$65.5 \mathrm{ms} \pm 287 \mathrm{μs}\left({\color{gray}-2.853 \mathrm{\%}}\right) $$

scenarios

Function	Value	Mean	Flame graphs
full_test	query-limited	$$129 \mathrm{ms} \pm 487 \mathrm{μs}\left({\color{lightgreen}-7.302 \mathrm{\%}}\right) $$	Flame Graph
full_test	query-unlimited	$$129 \mathrm{ms} \pm 518 \mathrm{μs}\left({\color{lightgreen}-7.184 \mathrm{\%}}\right) $$	Flame Graph
linked_queries	query-limited	$$40.0 \mathrm{ms} \pm 208 \mathrm{μs}\left({\color{lightgreen}-60.768 \mathrm{\%}}\right) $$	Flame Graph
linked_queries	query-unlimited	$$580 \mathrm{ms} \pm 1.09 \mathrm{ms}\left({\color{gray}-2.167 \mathrm{\%}}\right) $$	Flame Graph

indietyp added 11 commits December 18, 2025 16:17

feat: create file

fc3d4a0

fix: doctests

c5aaab3

chore: reorder

9fbd508

feat: checkpoint

9955806

fix: run in reverse postorder

bcafc81

feat: place simplify

b652311

feat: propagate across edges

80ff05e

chore: docs

9471562

chore: docs

8d0e053

chore: docs

d56afa1

feat: tests

f90bff2

vercel bot temporarily deployed to Preview – petrinaut December 21, 2025 18:33 Inactive

graphite-app bot assigned indietyp Dec 21, 2025

github-actions bot added area/libs Relates to first-party libraries/crates/packages (area) type/eng > backend Owned by the @backend team area/tests New or updated tests labels Dec 21, 2025

indietyp mentioned this pull request Dec 21, 2025

BE-254: Add CodSpeed benchmarking for HashQL MIR transformation passes #8204

Open

3 tasks

vercel bot deployed to Preview – hash December 21, 2025 18:41 View deployment

fix: format

37eeb65

vercel bot temporarily deployed to Preview – petrinaut December 21, 2025 18:43 Inactive

graphite-app bot requested review from a team December 21, 2025 19:03

chore: benchmarks

592ec3f

vercel bot temporarily deployed to Preview – petrinaut December 21, 2025 19:16 Inactive

chore: snapshots

7b8639a

vercel bot temporarily deployed to Preview – petrinaut December 21, 2025 21:32 Inactive

indietyp mentioned this pull request Dec 21, 2025

BE-255: HashQL: Implement Copy Propagation (CP) pass for MIR #8207

Open

3 tasks

indietyp mentioned this pull request Dec 22, 2025

BE-258: HashQL: Add Changed enum to track MIR transformation pass modifications #8210

Open

3 tasks

indietyp force-pushed the bm/be-254-experiment-around-with-codspeed branch from e1cb237 to 3326b24 Compare December 23, 2025 21:16

indietyp force-pushed the bm/be-231-hashql-peephole-optimization branch from 894a7e2 to 08246f0 Compare December 23, 2025 21:16

indietyp mentioned this pull request Dec 23, 2025

BE-227: HashQL: Implement call graph analysis for MIR #8214

Open

3 tasks

vercel bot deployed to Preview – petrinaut December 23, 2025 21:22 View deployment

vercel bot deployed to Preview – hash December 23, 2025 21:30 View deployment

This was referenced Dec 25, 2025

BE-259: HashQL: Add benchmarks for type system operations #8216

Open

BE-260: HashQL: Switch to bump allocator with scoping support #8218

Open

BE-262: HashQL: Do not intern empty slices #8223

Open

indietyp force-pushed the bm/be-254-experiment-around-with-codspeed branch from 3326b24 to 90ffaed Compare December 28, 2025 11:17

indietyp force-pushed the bm/be-231-hashql-peephole-optimization branch from 08246f0 to 7b8639a Compare December 28, 2025 11:17

vercel bot deployed to Preview – petrinaut December 28, 2025 11:23 View deployment

vercel bot deployed to Preview – hash December 28, 2025 11:31 View deployment

indietyp changed the title ~~BE-231: Add InstSimplify pass for MIR instruction simplification and constant folding~~ BE-231: HashQL: Add InstSimplify pass for MIR instruction simplification and constant folding Dec 28, 2025

indietyp mentioned this pull request Jan 8, 2026

BE-254: HashQL: Implement MIR interpreter with runtime value representation #8245

Open

3 tasks

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

BE-231: HashQL: Add InstSimplify pass for MIR instruction simplification and constant folding #8206

BE-231: HashQL: Add InstSimplify pass for MIR instruction simplification and constant folding #8206

Uh oh!

indietyp commented Dec 21, 2025

Uh oh!

cursor bot commented Dec 21, 2025 •

edited

Loading

Uh oh!

indietyp commented Dec 21, 2025 •

edited

Loading

Uh oh!

codecov bot commented Dec 21, 2025 •

edited

Loading

Uh oh!

codspeed-hq bot commented Dec 21, 2025 •

edited

Loading

Uh oh!

github-actions bot commented Dec 21, 2025

@rust/hash-graph-benches – Integrations

policy_resolution_large

policy_resolution_medium

policy_resolution_none

policy_resolution_small

read_scaling_complete

read_scaling_linkless

representative_read_entity

representative_read_entity_type

representative_read_multiple_entities

scenarios

Uh oh!

Reviewers

Assignees

Labels

Milestone

Development

Uh oh!

2 participants

BE-231: HashQL: Add InstSimplify pass for MIR instruction simplification and constant folding #8206

Are you sure you want to change the base?

BE-231: HashQL: Add InstSimplify pass for MIR instruction simplification and constant folding #8206

Uh oh!

Conversation

indietyp commented Dec 21, 2025

🌟 What is the purpose of this PR?

🔍 What does this change?

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

📜 Does this require a change to the docs?

🕸️ Does this require a change to the Turbo Graph?

🛡 What tests cover this?

Uh oh!

cursor bot commented Dec 21, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

PR Summary

Uh oh!

indietyp commented Dec 21, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

codecov bot commented Dec 21, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Codecov Report

Uh oh!

codspeed-hq bot commented Dec 21, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

CodSpeed Performance Report

Merging #8206 will degrade performance by 10.77%

Summary

Benchmarks breakdown

Footnotes

Uh oh!

github-actions bot commented Dec 21, 2025

Benchmark results

@rust/hash-graph-benches – Integrations

policy_resolution_large

policy_resolution_medium

policy_resolution_none

policy_resolution_small

read_scaling_complete

read_scaling_linkless

representative_read_entity

representative_read_entity_type

representative_read_multiple_entities

scenarios

Uh oh!

Reviewers

Assignees

Labels

Milestone

Development

Uh oh!

2 participants

cursor bot commented Dec 21, 2025 •

edited

Loading

indietyp commented Dec 21, 2025 •

edited

Loading

codecov bot commented Dec 21, 2025 •

edited

Loading

codspeed-hq bot commented Dec 21, 2025 •

edited

Loading