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TARGET dummy arrays can be accessed indirectly, so it is unsafe to repack them. INTENT(OUT) dummy arrays that require finalization on entry to their subroutine must be copied-in by `fir.pack_arrays`. In addition, based on my testing results, I think it will be useful to document that `LOC` and `IS_CONTIGUOUS` will have different values for the repacked arrays. I still need to decide where to document this, so just added a note in the design doc for the time being.
11 lines
321 B
Fortran
11 lines
321 B
Fortran
! RUN: bbc -emit-hlfir -frepack-arrays %s -o - | FileCheck --check-prefixes=CHECK %s
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! Check that there is no repacking for ASYNCHRONOUS dummy argument.
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! CHECK-LABEL: func.func @_QPtest(
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! CHECK-NOT: fir.pack_array
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! CHECK-NOT: fir.unpack_array
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subroutine test(x)
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integer, asynchronous :: x(:)
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end subroutine test
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