llvm-project

94d4cb5f - [CIR] Implement basic attributes for this/arguments (#182910)

[CIR] Implement basic attributes for this/arguments (#182910) Similar to what I did for return types in #181052, this patch adds support for 4 of the function attributes on arguments (noundef, nonnull, dereferenceable, align). The logic for these is all pretty similar (though SLIGHTLY different enough from eachother unfortunately), so they are being submitted together. This handles 'this' and normal arguments.