[llvm] [offload] add support for aligned allocations (PR #203353)

[Piotr Balcer via llvm-commits]

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+//===--------------- Offload API tests - olMemAllocAligned ----------------===//
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pbalcer wrote:

You should refactor these tests to use a common fixture parametrized by allocation type. Right now they are mostly copy/pasted.

https://github.com/llvm/llvm-project/pull/203353