viperproject / viperproject/silver

Simplifier doesn't simplify Perm expressions

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Dominant language
Scala
Stars
100
Forks
53
Avg merge
8h 10m
Merged PRs (30d)
2

Description

I noticed the simplifier doesn't simplify Perm (PermAdd, PermMul, ...)expressions (other than PermMinus double negation), is there a reason for this?

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the simplifier and its handling of Perm expressions such as PermAdd and PermMul, then compare that behavior with the existing PermMinus double-negation case. Determine which Perm simplifications are intended and verify that the relevant expressions are simplified consistently.

Written by the indexing model from the issue text.

Assessment

Tech stack
scala
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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