[PATCH] D130513: [Flang] Add -fconvert option to swap endianness for unformatted files

[Jonathon Penix via Phabricator via cfe-commits]

jpenix-quic created this revision.
jpenix-quic added reviewers: schweitz, klausler, peixin, awarzynski.
jpenix-quic added a project: Flang.
Herald added subscribers: mehdi_amini, jdoerfert, mgorny.
Herald added a reviewer: sscalpone.
Herald added a project: All.
jpenix-quic requested review of this revision.
Herald added subscribers: cfe-commits, sstefan1, MaskRay.
Herald added a reviewer: jdoerfert.
Herald added a project: clang.

This follows gfortran's approach of generating a runtime call to set
the conversion state for the entire program and takes effect only if
the fconvert option is used on the main program (as the runtime call
is inserted into _QQmain).

Resolves issue: https://github.com/llvm/llvm-project/issues/55961


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D130513

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Flang.cpp
  flang/include/flang/Frontend/FrontendOptions.h
  flang/include/flang/Lower/Bridge.h
  flang/include/flang/Optimizer/Builder/Runtime/Convert.h
  flang/include/flang/Runtime/convert.h
  flang/include/flang/Runtime/main.h
  flang/lib/Frontend/CompilerInvocation.cpp
  flang/lib/Frontend/FrontendActions.cpp
  flang/lib/Lower/Bridge.cpp
  flang/lib/Optimizer/Builder/CMakeLists.txt
  flang/lib/Optimizer/Builder/Runtime/Convert.cpp
  flang/runtime/environment.cpp
  flang/runtime/environment.h
  flang/runtime/main.cpp
  flang/test/Driver/convert.f90
  flang/test/Driver/driver-help-hidden.f90
  flang/test/Driver/driver-help.f90
  flang/test/Driver/frontend-forwarding.f90
  flang/tools/bbc/bbc.cpp
  flang/unittests/Runtime/ExternalIOTest.cpp

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