[all-commits] [llvm/llvm-project] b21c24: [Flang][OpenMP][Offload] Modify MapInfoFinalizatio...

[agozillon via All-commits]

  Branch: refs/heads/users/agozillo/attach-map-pr-set-3
  Home:   https://github.com/llvm/llvm-project
  Commit: b21c249487d379f5324f227e86ad7ed48a0b2bca
      https://github.com/llvm/llvm-project/commit/b21c249487d379f5324f227e86ad7ed48a0b2bca
  Author: agozillon <Andrew.Gozillon at amd.com>
  Date:   2026-02-04 (Wed, 04 Feb 2026)

  Changed paths:
    M flang/lib/Lower/OpenMP/Utils.cpp
    M flang/lib/Optimizer/OpenMP/MapInfoFinalization.cpp
    M flang/test/Lower/OpenMP/DelayedPrivatization/target-private-allocatable.f90
    M flang/test/Lower/OpenMP/DelayedPrivatization/target-private-multiple-variables.f90
    M flang/test/Lower/OpenMP/allocatable-map.f90
    M flang/test/Lower/OpenMP/array-bounds.f90
    M flang/test/Lower/OpenMP/attach-and-ref-modifier.f90
    M flang/test/Lower/OpenMP/declare-mapper.f90
    M flang/test/Lower/OpenMP/derived-type-allocatable-map.f90
    M flang/test/Lower/OpenMP/derived-type-map.f90
    M flang/test/Lower/OpenMP/map-character.f90
    M flang/test/Lower/OpenMP/map-component-ref.f90
    M flang/test/Lower/OpenMP/map-descriptor-deferral.f90
    M flang/test/Lower/OpenMP/optional-argument-map-2.f90
    M flang/test/Lower/OpenMP/target.f90
    M flang/test/Lower/OpenMP/use-device-ptr-to-use-device-addr.f90
    M flang/test/Lower/volatile-openmp.f90
    M flang/test/Transforms/omp-map-info-finalization-implicit-field.fir
    M flang/test/Transforms/omp-map-info-finalization.fir

  Log Message:
  -----------
  [Flang][OpenMP][Offload] Modify MapInfoFinalization to handle attach mapping and 6.1's ref_* and attach map keywords

This PR is one of four required to implement the attach mapping semantics in Flang, alongside the
ref_ptr/ref_ptee/ref_ptr_ptee map modifiers and the attach(always/never/auto) modifiers.

This PR is the MapInfoFinalization changes required to support these features, it mainly deals with
applying the correct attach map type and manipulating the descriptor types maps for base address
and descriptor so that when we specify ref_ptr/ref_ptee we emit one of the two maps and when we
emit ref_ptr_ptee we emit our usual default maps. In all cases we add the "glue" of an new
attach map except in cases where a user has provided attach never. In cases where we are
provided an always, we apply the always map type to our attach maps.

It's important to note the runtime has a toggle for the auto map behaviour, which will flip the
attach behaviour to the newer semantics or the older semantics for backwards compatability (outside
the purview of this PR but good to mention).



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