[flang-commits] [PATCH] D144411: [flang][runtime] Add API to help with the difficult array constructor cases

[Jean Perier via Phabricator via flang-commits]

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This runtime API can be used to lower any flavor of array constructors,
but is mainly intended to be used with:

- array constructors for which the extent or length parameters cannot be computed without lowering some ac-value or ac-implied-do-control that cannot be pre-evaluated.

- array constructors of a derived type with allocatable component where copy is not trivial or PDTS.

Example of use cases:

- `[((i+j,i=1, ifoo()), j=1,n)]` where ifoo() is not pure.
- `[return_allocatable_array(), return_allocatable_array()]`


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D144411

Files:
  flang/include/flang/Runtime/array-constructor.h
  flang/lib/Lower/ConvertArrayConstructor.cpp
  flang/runtime/CMakeLists.txt
  flang/runtime/array-constructor.cpp
  flang/unittests/Runtime/ArrayConstructor.cpp
  flang/unittests/Runtime/CMakeLists.txt

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