Slava Zakharin 5f268d04f9 [flang] Code generation for fir.pack/unpack_array. (#132080) ...

The code generation relies on `ShallowCopyDirect` runtime
to copy data between the original and the temporary arrays
(both directions). The allocations are done by the compiler
generated code. The heap allocations could have been passed
to `ShallowCopy` runtime, but I decided to expose the allocations
so that the temporary descriptor passed to `ShallowCopyDirect`
has `nocapture` - maybe this will be better for LLVM optimizations.

2025-03-31 11:42:17 -07:00

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