[all-commits] [llvm/llvm-project] 77b80b: [mlir][flang] Improve handling of fortran module v...

[Abid Qadeer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 77b80bd8186b392ed9bc87cd526a64093dd03522
      https://github.com/llvm/llvm-project/commit/77b80bd8186b392ed9bc87cd526a64093dd03522
  Author: Abid Qadeer <haqadeer at amd.com>
  Date:   2024-05-14 (Tue, 14 May 2024)

  Changed paths:
    M mlir/lib/Target/LLVMIR/ModuleTranslation.cpp
    M mlir/test/Target/LLVMIR/llvmir-debug.mlir

  Log Message:
  -----------
  [mlir][flang] Improve handling of fortran module variables. (#91604)

Currently, only those global variables which are at compile unit scope
are added to the 'globals' list of the DICompileUnit. This does not work
for languages which support modules (e.g. Fortran) where hierarchy
can be
variable -> module -> compile unit.

To fix this, if a variable scope points to a module, we walk one level
up and see if module is in the compile unit scope.

This was initially part of #91582 which adds debug information for
Fortran module variables. @kiranchandramohan pointed out that MLIR
changes should go in separate PRs.



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