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BE-500, BE-501: HashQL: Unify mixed parameter resolution in data dependency analysis#8607

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indietyp wants to merge 3 commits intobm/be-494-hashql-scc-loop-breaker-inliningfrom
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BE-500, BE-501: HashQL: Unify mixed parameter resolution in data dependency analysis#8607
indietyp wants to merge 3 commits intobm/be-494-hashql-scc-loop-breaker-inliningfrom
bm/be-500-hashql-forward-substitution-unified-param-resolution

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@indietyp indietyp commented Apr 5, 2026

🌟 What is the purpose of this PR?

This PR consolidates the parameter resolution logic in the data dependency analysis by unifying the handling of graph edges and constant bindings. Previously, these two sources of parameter values were handled by separate functions, but now they are processed together in a single unified approach that can handle mixed scenarios where parameters come from both sources.

🔍 What does this change?

  • Removes the resolve_params_const function and merges its functionality into resolve_params
  • Updates resolve_params to handle both graph edges and constant bindings simultaneously using try_reduce for consensus checking
  • Adds support for the iterator_try_reduce and maybe_uninit_uninit_array_transpose library features
  • Removes the unused assert_matches feature from multiple library modules
  • Adds a new test case load_param_mixed that validates parameter resolution when predecessors provide a mix of constants and projections
  • Improves documentation to clarify that parameter resolution now handles both graph edges and constant bindings

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?

  • New test case load_param_mixed validates the unified parameter resolution logic
  • Existing data dependency analysis tests continue to cover the refactored functionality

❓ How to test this?

  1. Checkout the branch
  2. Run the data dependency analysis tests
  3. Confirm that the new load_param_mixed test passes and validates mixed parameter resolution

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indietyp commented Apr 5, 2026

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codspeed-hq Bot commented Apr 5, 2026

Merging this PR will not alter performance

✅ 24 untouched benchmarks
⏩ 56 skipped benchmarks1


Comparing bm/be-500-hashql-forward-substitution-unified-param-resolution (2eb8898) with bm/be-494-hashql-scc-loop-breaker-inlining (3319cae)

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Footnotes

  1. 56 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports.

@vercel vercel Bot temporarily deployed to Preview – petrinaut April 5, 2026 19:43 Inactive
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codecov Bot commented Apr 5, 2026

Codecov Report

❌ Patch coverage is 96.25000% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 68.31%. Comparing base (3319cae) to head (2eb8898).

Files with missing lines Patch % Lines
...l/mir/src/pass/analysis/data_dependency/resolve.rs 93.33% 1 Missing and 3 partials ⚠️
...hashql/mir/src/pass/transform/inst_simplify/mod.rs 0.00% 2 Missing ⚠️
Additional details and impacted files
@@                              Coverage Diff                               @@
##           bm/be-494-hashql-scc-loop-breaker-inlining    #8607      +/-   ##
==============================================================================
+ Coverage                                       68.27%   68.31%   +0.04%     
==============================================================================
  Files                                             987      987              
  Lines                                           93731    93839     +108     
  Branches                                         4793     4790       -3     
==============================================================================
+ Hits                                            63996    64108     +112     
+ Misses                                          29073    29072       -1     
+ Partials                                          662      659       -3     
Flag Coverage Δ
apps.hash-ai-worker-ts 1.41% <ø> (ø)
apps.hash-api 0.00% <ø> (ø)
local.hash-backend-utils 0.00% <ø> (ø)
local.hash-graph-sdk 9.63% <ø> (ø)
local.hash-isomorphic-utils 0.00% <ø> (ø)
rust.hash-graph-api 2.52% <ø> (ø)
rust.hashql-compiletest 28.26% <ø> (ø)
rust.hashql-eval 79.71% <ø> (ø)
rust.hashql-mir 91.73% <96.25%> (+0.04%) ⬆️

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@vercel vercel Bot temporarily deployed to Preview – petrinaut April 6, 2026 19:28 Inactive
@indietyp indietyp changed the title BE-500: HashQL: Unify mixed parameter resolution in data dependency analysis BE-500, BE-501: HashQL: Unify mixed parameter resolution in data dependency analysis Apr 6, 2026
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github-actions Bot commented Apr 6, 2026

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 $$28.5 \mathrm{ms} \pm 196 \mathrm{μs}\left({\color{gray}-4.192 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: low, policies: 1 $$4.31 \mathrm{ms} \pm 45.4 \mathrm{μs}\left({\color{red}12.2 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: medium, policies: 1001 $$15.5 \mathrm{ms} \pm 154 \mathrm{μs}\left({\color{red}15.7 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: high, policies: 3314 $$46.3 \mathrm{ms} \pm 372 \mathrm{μs}\left({\color{gray}1.79 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: low, policies: 1 $$15.9 \mathrm{ms} \pm 141 \mathrm{μs}\left({\color{red}7.49 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: medium, policies: 1526 $$25.5 \mathrm{ms} \pm 177 \mathrm{μs}\left({\color{gray}-4.810 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: high, policies: 2078 $$29.3 \mathrm{ms} \pm 207 \mathrm{μs}\left({\color{gray}-2.220 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: low, policies: 1 $$3.81 \mathrm{ms} \pm 22.5 \mathrm{μs}\left({\color{gray}-3.105 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: medium, policies: 1033 $$14.2 \mathrm{ms} \pm 116 \mathrm{μs}\left({\color{gray}-0.823 \mathrm{\%}}\right) $$ Flame Graph

policy_resolution_medium

Function Value Mean Flame graphs
resolve_policies_for_actor user: empty, selectivity: high, policies: 102 $$4.13 \mathrm{ms} \pm 31.7 \mathrm{μs}\left({\color{red}9.79 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: low, policies: 1 $$3.33 \mathrm{ms} \pm 27.1 \mathrm{μs}\left({\color{red}13.6 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: medium, policies: 51 $$3.85 \mathrm{ms} \pm 37.3 \mathrm{μs}\left({\color{red}16.5 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: high, policies: 269 $$5.95 \mathrm{ms} \pm 63.4 \mathrm{μs}\left({\color{red}15.5 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: low, policies: 1 $$4.04 \mathrm{ms} \pm 42.1 \mathrm{μs}\left({\color{gray}1.27 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: medium, policies: 107 $$4.80 \mathrm{ms} \pm 53.6 \mathrm{μs}\left({\color{red}11.7 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: high, policies: 133 $$5.35 \mathrm{ms} \pm 69.3 \mathrm{μs}\left({\color{red}19.6 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: low, policies: 1 $$3.82 \mathrm{ms} \pm 36.9 \mathrm{μs}\left({\color{red}11.7 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: medium, policies: 63 $$5.03 \mathrm{ms} \pm 61.1 \mathrm{μs}\left({\color{red}21.8 \mathrm{\%}}\right) $$ Flame Graph

policy_resolution_none

Function Value Mean Flame graphs
resolve_policies_for_actor user: empty, selectivity: high, policies: 2 $$2.95 \mathrm{ms} \pm 23.1 \mathrm{μs}\left({\color{gray}1.88 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: low, policies: 1 $$3.00 \mathrm{ms} \pm 30.1 \mathrm{μs}\left({\color{red}5.40 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: medium, policies: 1 $$3.16 \mathrm{ms} \pm 60.3 \mathrm{μs}\left({\color{red}5.85 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: high, policies: 8 $$3.36 \mathrm{ms} \pm 37.2 \mathrm{μs}\left({\color{red}6.92 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: low, policies: 1 $$3.30 \mathrm{ms} \pm 41.5 \mathrm{μs}\left({\color{red}9.09 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: medium, policies: 3 $$3.46 \mathrm{ms} \pm 32.9 \mathrm{μs}\left({\color{red}6.83 \mathrm{\%}}\right) $$ Flame Graph

policy_resolution_small

Function Value Mean Flame graphs
resolve_policies_for_actor user: empty, selectivity: high, policies: 52 $$3.49 \mathrm{ms} \pm 40.0 \mathrm{μs}\left({\color{red}9.62 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: low, policies: 1 $$3.29 \mathrm{ms} \pm 32.2 \mathrm{μs}\left({\color{red}8.97 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: empty, selectivity: medium, policies: 25 $$3.26 \mathrm{ms} \pm 28.5 \mathrm{μs}\left({\color{red}5.65 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: high, policies: 94 $$4.31 \mathrm{ms} \pm 53.4 \mathrm{μs}\left({\color{red}21.0 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: low, policies: 1 $$3.71 \mathrm{ms} \pm 43.9 \mathrm{μs}\left({\color{red}13.3 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: seeded, selectivity: medium, policies: 26 $$3.93 \mathrm{ms} \pm 45.9 \mathrm{μs}\left({\color{red}16.1 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: high, policies: 66 $$3.86 \mathrm{ms} \pm 40.2 \mathrm{μs}\left({\color{gray}2.85 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: low, policies: 1 $$3.21 \mathrm{ms} \pm 21.5 \mathrm{μs}\left({\color{gray}0.724 \mathrm{\%}}\right) $$ Flame Graph
resolve_policies_for_actor user: system, selectivity: medium, policies: 29 $$3.59 \mathrm{ms} \pm 25.9 \mathrm{μs}\left({\color{gray}2.10 \mathrm{\%}}\right) $$ Flame Graph

read_scaling_complete

Function Value Mean Flame graphs
entity_by_id;one_depth 1 entities $$50.0 \mathrm{ms} \pm 458 \mathrm{μs}\left({\color{red}7.98 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;one_depth 10 entities $$89.6 \mathrm{ms} \pm 609 \mathrm{μs}\left({\color{red}6.31 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;one_depth 25 entities $$56.7 \mathrm{ms} \pm 482 \mathrm{μs}\left({\color{red}6.98 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;one_depth 5 entities $$55.0 \mathrm{ms} \pm 369 \mathrm{μs}\left({\color{gray}3.49 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;one_depth 50 entities $$65.0 \mathrm{ms} \pm 459 \mathrm{μs}\left({\color{lightgreen}-12.502 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;two_depth 1 entities $$47.8 \mathrm{ms} \pm 287 \mathrm{μs}\left({\color{lightgreen}-20.685 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;two_depth 10 entities $$446 \mathrm{ms} \pm 1.05 \mathrm{ms}\left({\color{gray}1.69 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;two_depth 25 entities $$107 \mathrm{ms} \pm 579 \mathrm{μs}\left({\color{red}10.7 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;two_depth 5 entities $$93.4 \mathrm{ms} \pm 540 \mathrm{μs}\left({\color{gray}-2.372 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;two_depth 50 entities $$301 \mathrm{ms} \pm 913 \mathrm{μs}\left({\color{gray}1.74 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;zero_depth 1 entities $$20.2 \mathrm{ms} \pm 145 \mathrm{μs}\left({\color{gray}-3.775 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;zero_depth 10 entities $$23.0 \mathrm{ms} \pm 256 \mathrm{μs}\left({\color{gray}3.04 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;zero_depth 25 entities $$20.0 \mathrm{ms} \pm 117 \mathrm{μs}\left({\color{lightgreen}-11.598 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;zero_depth 5 entities $$23.8 \mathrm{ms} \pm 235 \mathrm{μs}\left({\color{red}11.7 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id;zero_depth 50 entities $$25.2 \mathrm{ms} \pm 165 \mathrm{μs}\left({\color{lightgreen}-5.690 \mathrm{\%}}\right) $$ Flame Graph

read_scaling_linkless

Function Value Mean Flame graphs
entity_by_id 1 entities $$20.5 \mathrm{ms} \pm 143 \mathrm{μs}\left({\color{gray}1.49 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id 10 entities $$19.9 \mathrm{ms} \pm 130 \mathrm{μs}\left({\color{gray}1.27 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id 100 entities $$20.2 \mathrm{ms} \pm 182 \mathrm{μs}\left({\color{gray}1.62 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id 1000 entities $$19.9 \mathrm{ms} \pm 141 \mathrm{μs}\left({\color{gray}0.088 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id 10000 entities $$26.6 \mathrm{ms} \pm 287 \mathrm{μs}\left({\color{gray}2.66 \mathrm{\%}}\right) $$ 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 $$35.5 \mathrm{ms} \pm 327 \mathrm{μs}\left({\color{gray}3.08 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/book/v/1 $$34.9 \mathrm{ms} \pm 277 \mathrm{μs}\left({\color{gray}-1.470 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/building/v/1 $$35.6 \mathrm{ms} \pm 374 \mathrm{μs}\left({\color{lightgreen}-6.543 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/organization/v/1 $$35.1 \mathrm{ms} \pm 305 \mathrm{μs}\left({\color{gray}-4.797 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/page/v/2 $$35.5 \mathrm{ms} \pm 321 \mathrm{μs}\left({\color{gray}1.09 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/person/v/1 $$36.0 \mathrm{ms} \pm 268 \mathrm{μs}\left({\color{gray}1.14 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/playlist/v/1 $$34.5 \mathrm{ms} \pm 316 \mathrm{μs}\left({\color{lightgreen}-7.698 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/song/v/1 $$34.5 \mathrm{ms} \pm 295 \mathrm{μs}\left({\color{gray}0.348 \mathrm{\%}}\right) $$ Flame Graph
entity_by_id entity type ID: https://blockprotocol.org/@alice/types/entity-type/uk-address/v/1 $$35.6 \mathrm{ms} \pm 297 \mathrm{μs}\left({\color{gray}-2.051 \mathrm{\%}}\right) $$ Flame Graph

representative_read_entity_type

Function Value Mean Flame graphs
get_entity_type_by_id Account ID: bf5a9ef5-dc3b-43cf-a291-6210c0321eba $$8.57 \mathrm{ms} \pm 50.2 \mathrm{μs}\left({\color{lightgreen}-15.874 \mathrm{\%}}\right) $$ Flame Graph

representative_read_multiple_entities

Function Value Mean Flame graphs
entity_by_property traversal_paths=0 0 $$100 \mathrm{ms} \pm 566 \mathrm{μs}\left({\color{lightgreen}-5.540 \mathrm{\%}}\right) $$
entity_by_property traversal_paths=255 1,resolve_depths=inherit:1;values:255;properties:255;links:127;link_dests:126;type:true $$151 \mathrm{ms} \pm 563 \mathrm{μs}\left({\color{lightgreen}-12.281 \mathrm{\%}}\right) $$
entity_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:0;properties:0;links:0;link_dests:0;type:false $$110 \mathrm{ms} \pm 549 \mathrm{μs}\left({\color{gray}-1.060 \mathrm{\%}}\right) $$
entity_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:0;properties:0;links:1;link_dests:0;type:true $$122 \mathrm{ms} \pm 564 \mathrm{μs}\left({\color{gray}1.62 \mathrm{\%}}\right) $$
entity_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:0;properties:2;links:1;link_dests:0;type:true $$128 \mathrm{ms} \pm 474 \mathrm{μs}\left({\color{gray}0.057 \mathrm{\%}}\right) $$
entity_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:2;properties:2;links:1;link_dests:0;type:true $$133 \mathrm{ms} \pm 471 \mathrm{μs}\left({\color{gray}-3.902 \mathrm{\%}}\right) $$
link_by_source_by_property traversal_paths=0 0 $$106 \mathrm{ms} \pm 455 \mathrm{μs}\left({\color{lightgreen}-5.481 \mathrm{\%}}\right) $$
link_by_source_by_property traversal_paths=255 1,resolve_depths=inherit:1;values:255;properties:255;links:127;link_dests:126;type:true $$132 \mathrm{ms} \pm 599 \mathrm{μs}\left({\color{gray}-0.340 \mathrm{\%}}\right) $$
link_by_source_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:0;properties:0;links:0;link_dests:0;type:false $$113 \mathrm{ms} \pm 484 \mathrm{μs}\left({\color{gray}-4.684 \mathrm{\%}}\right) $$
link_by_source_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:0;properties:0;links:1;link_dests:0;type:true $$121 \mathrm{ms} \pm 940 \mathrm{μs}\left({\color{gray}-3.671 \mathrm{\%}}\right) $$
link_by_source_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:0;properties:2;links:1;link_dests:0;type:true $$121 \mathrm{ms} \pm 575 \mathrm{μs}\left({\color{lightgreen}-5.127 \mathrm{\%}}\right) $$
link_by_source_by_property traversal_paths=2 1,resolve_depths=inherit:0;values:2;properties:2;links:1;link_dests:0;type:true $$121 \mathrm{ms} \pm 500 \mathrm{μs}\left({\color{gray}-0.686 \mathrm{\%}}\right) $$

scenarios

Function Value Mean Flame graphs
full_test query-limited $$140 \mathrm{ms} \pm 747 \mathrm{μs}\left({\color{gray}4.28 \mathrm{\%}}\right) $$ Flame Graph
full_test query-unlimited $$149 \mathrm{ms} \pm 603 \mathrm{μs}\left({\color{gray}2.32 \mathrm{\%}}\right) $$ Flame Graph
linked_queries query-limited $$109 \mathrm{ms} \pm 619 \mathrm{μs}\left({\color{gray}4.28 \mathrm{\%}}\right) $$ Flame Graph
linked_queries query-unlimited $$601 \mathrm{ms} \pm 3.22 \mathrm{ms}\left({\color{gray}3.75 \mathrm{\%}}\right) $$ Flame Graph

@indietyp indietyp force-pushed the bm/be-500-hashql-forward-substitution-unified-param-resolution branch from 57a6dd4 to 7b45e45 Compare April 29, 2026 15:09
@indietyp indietyp force-pushed the bm/be-494-hashql-scc-loop-breaker-inlining branch from 3481dcb to 95ef685 Compare April 29, 2026 15:09
@indietyp indietyp force-pushed the bm/be-494-hashql-scc-loop-breaker-inlining branch from 95ef685 to 933ed9e Compare April 29, 2026 15:23
@indietyp indietyp force-pushed the bm/be-500-hashql-forward-substitution-unified-param-resolution branch from 7b45e45 to 04b51c5 Compare April 29, 2026 15:23
@indietyp indietyp force-pushed the bm/be-500-hashql-forward-substitution-unified-param-resolution branch from 04b51c5 to fb80624 Compare April 29, 2026 15:32
@indietyp indietyp force-pushed the bm/be-500-hashql-forward-substitution-unified-param-resolution branch from fb80624 to d2ad307 Compare April 29, 2026 15:40
@indietyp indietyp force-pushed the bm/be-494-hashql-scc-loop-breaker-inlining branch from 1bebdcc to 1cba715 Compare April 29, 2026 15:40
@indietyp indietyp force-pushed the bm/be-500-hashql-forward-substitution-unified-param-resolution branch from d2ad307 to 93fba40 Compare April 29, 2026 15:42
@indietyp indietyp force-pushed the bm/be-494-hashql-scc-loop-breaker-inlining branch from 1cba715 to 1da0f0a Compare April 29, 2026 15:42
@indietyp indietyp marked this pull request as ready for review April 29, 2026 15:42
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cursor Bot commented Apr 29, 2026

PR Summary

Medium Risk
Touches core data-dependency resolution logic (φ-node/loop Param handling), so regressions could affect subsequent MIR optimizations; changes are well-covered by added cycle/projection/mixed-predecessor tests.

Overview
Unifies block-parameter (Param) resolution in data-dependency analysis by merging graph-edge and constant-binding predecessors into a single consensus check, including projection-aware comparison (resolve each predecessor through the full projection suffix) and improved cycle handling (skip cyclic predecessors; propagate Backtrack correctly).

Adds several targeted regression tests and snapshots covering mixed constant/place predecessors, projected-field consensus, and loop cycles with constant init edges/visited-set cleanup. Also extends InstSimplify to fold non-boolean 0 & x/x & 0 to 0, and enables the nightly iterator_try_reduce feature used by the new consensus logic.

Reviewed by Cursor Bugbot for commit 7f4b3d6. Bugbot is set up for automated code reviews on this repo. Configure here.

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@indietyp indietyp force-pushed the bm/be-500-hashql-forward-substitution-unified-param-resolution branch from ffe8840 to f3d71ce Compare April 30, 2026 08:53
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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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Comment thread libs/@local/hashql/mir/src/pass/analysis/data_dependency/resolve.rs
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