[all-commits] [llvm/llvm-project] b1f669: [flang][OpenMP] Support allocate clauses on scope ...

[Sairudra More via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b1f66905515904d048c9c53e92b1c0d2423aca19
      https://github.com/llvm/llvm-project/commit/b1f66905515904d048c9c53e92b1c0d2423aca19
  Author: Sairudra More <sairudra60 at gmail.com>
  Date:   2026-09-28 (Mon, 28 Sep 2026)

  Changed paths:
    M flang/docs/OpenMPSupport.md
    M flang/lib/Lower/OpenMP/OpenMP.cpp
    A flang/test/Integration/OpenMP/allocate-clause-equivalence.f90
    A flang/test/Integration/OpenMP/scope-allocate-clause.f90
    M flang/test/Lower/OpenMP/Todo/allocate-clause-unsupported.f90
    A flang/test/Lower/OpenMP/Todo/scope-allocate-clause-unsupported.f90
    M flang/test/Lower/OpenMP/scope.f90
    M flang/test/Lower/OpenMP/target-scope.f90
    M mlir/lib/Dialect/OpenMP/IR/OpenMPDialect.cpp
    M mlir/lib/Target/LLVMIR/Dialect/OpenMP/OpenMPToLLVMIRTranslation.cpp
    M mlir/test/Dialect/OpenMP/invalid.mlir
    M mlir/test/Dialect/OpenMP/ops.mlir
    M mlir/test/Target/LLVMIR/openmp-allocate-clause.mlir
    A mlir/test/Target/LLVMIR/openmp-scope-allocate-clause.mlir
    M mlir/test/Target/LLVMIR/openmp-todo.mlir

  Log Message:
  -----------
  [flang][OpenMP] Support allocate clauses on scope constructs (#221229)

Flang already lowers OpenMP 5.2 `allocate` clauses on `scope` constructs
to `omp.scope`, but LLVM IR translation previously rejected them.

This change maps allocation operands to their corresponding private or
firstprivate slots and reuses the existing allocator-backed
private-storage and OpenMPIRBuilder allocation/free paths.

Support is currently limited to host-side fixed-size intrinsic scalar
private and firstprivate variables, including SAVE variables and
individually listed COMMON-block members. Arrays, descriptors, pointers,
allocatables, derived types, named COMMON-block list items, and
target/device allocation remain unsupported.



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