[all-commits] [llvm/llvm-project] 5942f0: [flang] Preserve compiler directives in -E output ...

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 5942f0269e62021620e871bfe2e671f4f0f2d932
      https://github.com/llvm/llvm-project/commit/5942f0269e62021620e871bfe2e671f4f0f2d932
  Author: Peter Klausler <pklausler at nvidia.com>
  Date:   2025-04-04 (Fri, 04 Apr 2025)

  Changed paths:
    M flang/lib/Parser/parsing.cpp
    M flang/lib/Parser/prescan.cpp
    M flang/lib/Parser/token-sequence.cpp
    M flang/test/Parser/OpenMP/compiler-directive-continuation.f90
    M flang/test/Parser/OpenMP/sentinels.f
    M flang/test/Parser/continuation-in-conditional-compilation.f
    M flang/test/Preprocessing/bug126459.F90
    M flang/test/Preprocessing/line-in-contin.F90
    M flang/test/Preprocessing/pp132.f90
    M flang/test/Preprocessing/preprocessed-dirs.F90

  Log Message:
  -----------
  [flang] Preserve compiler directives in -E output (#133959)

No longer require -fopenmp or -fopenacc with -E, unless specific version
number options are also required for predefined macros. This means that
most source can be preprocessed with -E and then later compiled with
-fopenmp, -fopenacc, or neither.

This means that OpenMP conditional compilation lines (!$) are also
passed through to -E output. The tricky part of this patch was dealing
with the fact that those conditional lines can also contain regular
Fortran line continuation, and that now has to be deferred when !$ lines
are interspersed.



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