| Issue |
154331
|
| Summary |
Building LLVM and MLIR with LLVM_REQUIRED_CXX_STANDARD c++23
|
| Labels |
mlir
|
| Assignees |
|
| Reporter |
kykrueger
|
Building llvm with c++23 seems to not yet be supported.
I'm keen on building it anyways to use 'import std;' in [NebulaStream](https://github.com/nebulastream/nebulastream) which uses LLVM with MLIR as a dependency.
I'm making patches to get the build working based on the llvmorg-20.1.8 release, and many of them seem to still be relevant when building against the release candidates for 21 and 22.
When switching the LLVM_REQUIRED_CXX_STANDARD variable to 23 on the 20.1.8 release many errors are encountered.
Most of the issues relate to the constexpr changes of unique_ptr in c++23.
I'd like to make a PR to share the changes I am making to get this working and see if any of them could be useful for the next 20.x.x release or other major releases.
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