[all-commits] [llvm/llvm-project] 75db34: [flang][codegen] Add a conversion for `!fir.coordi...

[Andrzej Warzyński via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 75db341d5a12783f8048ef9968896871c580e6b7
      https://github.com/llvm/llvm-project/commit/75db341d5a12783f8048ef9968896871c580e6b7
  Author: Andrzej Warzynski <andrzej.warzynski at arm.com>
  Date:   2021-12-10 (Fri, 10 Dec 2021)

  Changed paths:
    M flang/lib/Optimizer/CodeGen/CodeGen.cpp
    M flang/lib/Optimizer/CodeGen/TypeConverter.h
    A flang/test/Fir/Todo/cordinate_of_1.fir
    A flang/test/Fir/Todo/cordinate_of_2.fir
    A flang/test/Fir/Todo/cordinate_of_3.fir
    A flang/test/Fir/Todo/cordinate_of_4.fir
    M flang/test/Fir/convert-to-llvm.fir

  Log Message:
  -----------
  [flang][codegen] Add a conversion for `!fir.coordinate_of` - part 1

This patch extends the `FIRToLLVMLowering` pass in Flang by adding a
hook to transform `!fir.coordinate_of` into a sequence of LLVM MLIR
instructions.

The following cases are currently supported:
  1.  the input object is a `!fir.complex` (wrapped in e.g. `!fir.ref` or
      `!fir.box`)
  2.  the input object is wrapped in a `!fir.box` (including e.g.
      `!fir.array`).
Note that `!fir.complex` inside a `!fir.box` falls under case 1. above
(i.e. it's a special case regardless of the wrapping type).

This is part of the upstreaming effort from the `!fir-dev` branch in [1].

Differential Revision: https://reviews.llvm.org/D114159

Co-authored-by: Jean Perier <jperier at nvidia.com>
Co-authored-by: Eric Schweitz <eschweitz at nvidia.com>
Co-authored-by: V Donaldson <vdonaldson at nvidia.com>