llvm / llvm/llvm-project

[DAG] getIdentityElement/isIdentityElement - add ISD::PSEUDO_FMIN/MAX handling

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llvm:SelectionDAG
Dominant language
LLVM
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Description

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Contributor guide

Open the contributing guide

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 DAG implementation of getIdentityElement and isIdentityElement and the definitions of ISD::PSEUDO_FMIN and ISD::PSEUDO_FMAX. Determine how these pseudo-operations should be handled and identify the relevant compiler tests; done means both methods handle the two operations with passing coverage.

Written by the indexing model from the issue text.

Assessment

Domain
compilers
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Active
Clarity
Needs clarification
Newbie friendliness
35/100

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