[Mlir-commits] [mlir] [mlir][IR] Generalize `DenseElementsAttr` to custom element types (PR #183920)

[Matthias Springer]

matthias-springer wrote:

This PR was approved + merged earlier, but then reverted due to build bot breakage. 

The issue with `flang-arm64-windows-msvc` seems to be fold expressions (fixed in second commit, verified with multiple build bot runs).

Failing with fold expressions (f9150cdd10cd4dd81dd80be137d84fbb6b130acf): [run 1](https://lab.llvm.org/buildbot/#/builders/207/builds/14085), [run 2](https://lab.llvm.org/buildbot/#/builders/207/builds/14086)
Passing without fold expressions (86df0eeabb1dbc8186095fb7718900b08dd37926): [run 1](https://lab.llvm.org/buildbot/#/builders/207/builds/14091), [run 2](https://lab.llvm.org/buildbot/#/builders/207/builds/14093), [run 3](https://lab.llvm.org/buildbot/#/builders/207/builds/14107), [run 4](https://lab.llvm.org/buildbot/#/builders/207/builds/14108)

https://github.com/llvm/llvm-project/pull/183920