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Burst error BC0102: Unexpected internal compiler error

Discussion in 'Burst' started by tertle, Sep 24, 2021.

  1. tertle


    Jan 25, 2011
    Accidentally ran into an internal burst compile error while refactoring some code.


    Simple repo code

    Code (CSharp):
    1. public struct TestData
    2. {
    3.     public int3 Min;
    4.     public int Size;
    5. }
    7. [BurstCompile]
    8. private struct Repo : IJob
    9. {
    10.     public NativeReference<TestData> Root;
    12.     public void Execute()
    13.     {
    14.         this.FailMethod((TestData*)this.Root.GetUnsafePtr());
    15.     }
    17.     private void FailMethod(in TestData* node)
    18.     {
    19.         var aabb = new Unity.Mathematics.MinMaxAABB { Min = node->Min, Max = node->Size };
    20.     }
    21. }
    The issue is just the

    Code (CSharp):
    1. in TestData* node
    Removing the 'in' and burst compiles fine.

    This is a pretty irrelevant bug as the 'in' doesn't do anything on a pointer as far as I'm aware, I was just refactoring a method and accidentally left it on.

    Only reporting it just because as far as I'm aware this is technically valid code and the repo was very simple.
    Last edited: Sep 24, 2021
    MNNoxMortem and sheredom like this.
  2. sheredom


    Unity Technologies

    Jul 15, 2019
    Good find! I can repro it, so I'll fix it. Thanks!