chore: perform dead instruction elimination through std::as_witness
#5123
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TomAFrench
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May 28, 2024
TomAFrench
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May 28, 2024
vezenovm
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May 28, 2024
AztecBot
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…ir#5109) feat: Sync from aztec-packages (noir-lang/noir#5125) chore: remove warnings field from `DebugArtifact` (noir-lang/noir#5118) feat: make ACVM generic across fields (noir-lang/noir#5114) fix: Auto dereference trait methods in the elaborator (noir-lang/noir#5124) chore: perform dead instruction elimination through `std::as_witness` (noir-lang/noir#5123)
TomAFrench
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Automated pull of development from the [noir](https://github.com/noir-lang/noir) programming language, a dependency of Aztec. BEGIN_COMMIT_OVERRIDE chore: deduplicate `ReturnConstant` warning (noir-lang/noir#5109) feat: Sync from aztec-packages (noir-lang/noir#5125) chore: remove warnings field from `DebugArtifact` (noir-lang/noir#5118) feat: make ACVM generic across fields (noir-lang/noir#5114) fix: Auto dereference trait methods in the elaborator (noir-lang/noir#5124) chore: perform dead instruction elimination through `std::as_witness` (noir-lang/noir#5123) END_COMMIT_OVERRIDE --------- Co-authored-by: TomAFrench <[email protected]>
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Description
Problem*
Resolves
Summary*
This PR adds handling for
std::as_witnessin dead instruction elimination. i.e. if we're asking for an SSA value to be assigned to a witness when that value would not otherwise be represented in the ACIR then we can remove it.This issue can be seen in #5122 where making two calls to the same function with the same inputs and asserting that the outputs are the same results in constraints whereas this can be determined at runtime.
Additional Context
Documentation*
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PR Checklist*
cargo fmton default settings.