The PackSimd.Splat intrinsic definitions is failing lookup because code wasn't setup to handle a scalar arg1 ```csharp Console.WriteLine($"These should be the same {PackedSimd.Splat(1)} == {Vector128.Create<int>(1)} (and not kill the runtime)"); ``` [demonstration](https://lab.razor.fyi/#fZBBSgNBEEWRcaG9Ek_QkE2yaYgrISLICBKJEJxgwJVtT2Us0l2tXTVCCNmLJ_AKXsNDeAPvIQ4KMiGp3f_1fvEp9ZUpNU6xSjYYx4efWc1IlS4WLBAG6r8yefQenGAkNhdAkNBtIYYh1GLvPbSYc7QVRRZ0vHlj8ljCGVm_YGxjI6SnljV5SGBLpGqTbyaW5-1D1zUJBjBDkoTE64XWATO1HAZKOW-Z9e_j1FJprTWLFXT6OWKpryxSt9fYS9XBmZZUQyN_Jo_E0YOZJhQYIUH3BpzE1D86NnkCK3CCJKfdfq83UB3wvC06tm4OZYGhNMWjt_KXohJnTWylVuoySzXd7u-9vby-f8DB7t3ONw)