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fix: rationalise witness for constant values #984

Merged
merged 12 commits into from
Mar 22, 2023
Merged

fix: rationalise witness for constant values #984

merged 12 commits into from
Mar 22, 2023

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guipublic
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Related issue(s)

Resolves #770

Description

Summary of changes

Update the internalVarCache when we generate a witness for an internalVar. The Pr also ensures that we create only one witness per constant value.

Test additions / changes

Unit tests added to internalVarCache

Checklist

  • I have tested the changes locally.
  • I have formatted the changes with Prettier and/or cargo fmt with default settings.
  • I have linked this PR to the issue(s) that it resolves.
  • I have reviewed the changes on GitHub, line by line.
  • I have ensured all changes are covered in the description.

Documentation needs

  • This PR requires documentation updates when merged.

TomAFrench
TomAFrench reviewed Mar 18, 2023
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Some clippy stuff

crates/noirc_evaluator/src/ssa/context.rs Outdated Show resolved Hide resolved
crates/noirc_evaluator/src/ssa/acir_gen/internal_var_cache.rs Outdated Show resolved Hide resolved
crates/noirc_evaluator/src/ssa/acir_gen/internal_var_cache.rs Outdated Show resolved Hide resolved
@TomAFrench TomAFrench changed the title fix(770): rationalise witness for constant values fix: rationalise witness for constant values Mar 20, 2023
kevaundray
kevaundray reviewed Mar 20, 2023
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LGTM overall -- just two comments left to resolve

@TomAFrench
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TomAFrench commented Mar 20, 2023 •
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Not going to block a PR over a small logic refactor so feel free to resolve. However in general, breaking our logic into discrete steps massively improves readability compared to pushing everything into a single nested for-loop.

@kevaundray
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Not going to block a PR over a small logic refactor so feel free to resolve. However in general, breaking our logic into discrete steps massively improves readability compared to pushing everything into a single nested for-loop.

I think you have a good point re readability of the codebase -- At the offsite, I think we should reserve some time to go over some of these points. It may be that we need a document that specifies certain things we should avoid. Loosely speaking, I tend to grunt at rightwards shifting code.

TomAFrench
TomAFrench approved these changes Mar 22, 2023
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LGTM

@TomAFrench TomAFrench added this pull request to the merge queue Mar 22, 2023
@TomAFrench TomAFrench merged commit ab32365 into master Mar 22, 2023
@TomAFrench TomAFrench deleted the gd/const_witness branch March 22, 2023 19:15
@kevaundray kevaundray mentioned this pull request Mar 22, 2023
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@TomAFrench TomAFrench TomAFrench approved these changes

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Successfully merging this pull request may close these issues.

Remove incorrect cloning of InternalVar in acir_gen
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@guipublic @TomAFrench @kevaundray