[all-commits] [llvm/llvm-project] 52a46d: [flang] Allow -fdefault-integer-8 with defined I/O...

[Peter Klausler via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 52a46dc57f29e87a5a298ce325562fa2e3d057c9
      https://github.com/llvm/llvm-project/commit/52a46dc57f29e87a5a298ce325562fa2e3d057c9
  Author: Peter Klausler <pklausler at nvidia.com>
  Date:   2025-07-16 (Wed, 16 Jul 2025)

  Changed paths:
    M flang-rt/include/flang-rt/runtime/non-tbp-dio.h
    M flang-rt/include/flang-rt/runtime/type-info.h
    M flang-rt/lib/runtime/derived.cpp
    M flang-rt/lib/runtime/descriptor-io.cpp
    M flang-rt/lib/runtime/non-tbp-dio.cpp
    M flang-rt/lib/runtime/type-info.cpp
    M flang/include/flang/Semantics/runtime-type-info.h
    M flang/lib/Lower/IO.cpp
    M flang/lib/Semantics/runtime-type-info.cpp
    M flang/module/__fortran_type_info.f90
    M flang/test/Lower/io-derived-type.f90
    M flang/test/Lower/namelist.f90
    M flang/test/Lower/volatile-openmp.f90
    M flang/test/Semantics/typeinfo01.f90
    M flang/test/Semantics/typeinfo02.f90
    M flang/test/Semantics/typeinfo09.f90
    M flang/test/Semantics/typeinfo13.f90

  Log Message:
  -----------
  [flang] Allow -fdefault-integer-8 with defined I/O (#148927)

Defined I/O subroutines have UNIT= and IOSTAT= dummy arguments that are
required to have type INTEGER with its default kind. When that default
kind is modified via -fdefault-integer-8, calls to defined I/O
subroutines from the runtime don't work.

Add a flag to the two data structures shared between the compiler and
the runtime support library to indicate that a defined I/O subroutine
was compiled under -fdefault-integer-8. This has been done in a
compatible manner, so that existing binaries are compatible with the new
library and new binaries are compatible with the old library, unless of
course -fdefault-integer-8 is used.

Fixes https://github.com/llvm/llvm-project/issues/148638.



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