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fix(ssa refactor): Do not remove enable_side_effects instructions in die pass #1673

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merged 1 commit into from
Jun 14, 2023

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jfecher
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@jfecher jfecher commented Jun 13, 2023

Description

Problem*

The Dead Instruction Elimination (DIE) pass was removing the enable_side_effects instructions previously as they had no result values, and thus all results were unused. This is problematic because these instructions are side-effectful so we want them to stay around.

Summary*

This PR sets out to

Example

Before:


After:


Documentation

  • This PR requires documentation updates when merged.

    • I will submit a noir-lang/docs PR.
    • I will request for and support Dev Rel's help in documenting this PR.

Additional Context

PR Checklist*

  • I have tested the changes locally.
  • I have formatted the changes with Prettier and/or cargo fmt on default settings.

@jfecher jfecher requested a review from joss-aztec June 13, 2023 17:01
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LGTM

@joss-aztec joss-aztec enabled auto-merge June 13, 2023 17:22
@joss-aztec joss-aztec added this pull request to the merge queue Jun 14, 2023
Merged via the queue into master with commit cbee4c0 Jun 14, 2023
@joss-aztec joss-aztec deleted the jf/fix-die branch June 14, 2023 11:28
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2 participants