llvm

343b2658 - [UR][Offload] Build offload adapter against upstream liboffload (#21244)

[UR][Offload] Build offload adapter against upstream liboffload (#21244) The current build flow clones and builds liboffload from the upstream repository, which is inconvenient for active liboffload development. Liboffload is developed directly upstream, not in this repo. This patch allows to path to installed upstream libofflad, so you can use working copy during development.