Change Details

Add support for the following layout options: * -ffree-form * -ffixed-form - -ffixed-line-length-n The default fixed line length in FrontendOptions is 72, based off the current default in Fortran::parser::Options. The line length cannot be set to a negative integer, or a positive integer less than 7 excluding 0, consistent with the behaviour of gfortran. This patch does not add `-ffree-line-length-n` as Fortran::parser::Options does not have a variable for free form columns. Whilst `fixedFormColumns` variable is used in f18 for `-ffree-line-length-n`, f18 only allows `-ffree-line-length-none`/`-ffree-line-length-0` and not a user-specified value. `fixedFormcolumns` cannot be used in the new driver as it is ignored in the frontend when dealing with free form files. Options `-ffree-form` and `-ffixed-form` do not have help text as the options are defined with a `BooleanFFlag` type. This introduces `-fno-free-form` and `-fno-fixed-form` which is not used by the new driver and only exists for gfortran. Help text is therefore duplicated between `-f` and `-fno` which does not belong in `flang-new --help`. Summary of changes: - Create AddFortranDialectOptions method in Flang.cpp - Create FortranForm enum in FrontendOptions.h - Add fortranForm_ and fixedFormColumns_ to Fortran::frontend::FrontendOptions

Add support for the following layout options: * -ffree-form * -ffixed-form - -ffixed-line-length-n Additionally remove options `-fno-fixed-form` and `-fno-free-form` as they were initially added to Options.td to forward to gfortran but gfortran does not support these flags and so they are unnecessary. The default fixed line length in FrontendOptions is 72, based off the current default in Fortran::parser::Options. The line length cannot be set to a negative integer, or a positive integer less than 7 excluding 0, consistent with the behaviour of gfortran. This patch does not add `-ffree-line-length-n` as Fortran::parser::Options does not have a variable for free form columns. Whilst `fixedFormColumns` variable is used in f18 for `-ffree-line-length-n`, f18 only allows `-ffree-line-length-none`/`-ffree-line-length-0` and not a user-specified value. `fixedFormcolumns` cannot be used in the new driver as it is ignored in the frontend when dealing with free form files. Summary of changes: - Create AddFortranDialectOptions method in Flang.cpp - Create FortranForm enum in FrontendOptions.h - Add fortranForm_ and fixedFormColumns_ to Fortran::frontend::FrontendOptions - Update fixed-form-test.f so that it guarantees that it fails when forced as a free form file to better facilitate testing.

Add support for the following layout options: * -ffree-form * -ffixed-form - -ffixed-line-length-n Additionally remove options `-fno-fixed-form` and `-fno-free-form` as they were initially added to Options.td to forward to gfortran but gfortran does not support these flags and so they are unnecessary. The default fixed line length in FrontendOptions is 72, based off the current default in Fortran::parser::Options. The line length cannot be set to a negative integer, or a positive integer less than 7 excluding 0, consistent with the behaviour of gfortran. This patch does not add `-ffree-line-length-n` as Fortran::parser::Options does not have a variable for free form columns. Whilst `fixedFormColumns` variable is used in f18 for `-ffree-line-length-n`, f18 only allows `-ffree-line-length-none`/`-ffree-line-length-0` and not a user-specified value. `fixedFormcolumns` cannot be used in the new driver as it is ignored in the frontend when dealing with free form files. Options `-ffree-form` and `-ffixed-form` do not have help text as the options are defined with a `BooleanFFlag` type. This introduces `-fno-free-form` and `-fno-fixed-form` which is not used by the new driver and only exists for gfortran. Help text is therefore duplicated between `-f` and `-fno` which does not belong in `flang-new --help`. Summary of changes: - Create AddFortranDialectOptions method in Flang.cpp - Create FortranForm enum in FrontendOptions.h - Add fortranForm_ and fixedFormColumns_ to Fortran::frontend::FrontendOptions - Update fixed-form-test.f so that it guarantees that it fails when forced as a free form file to better facilitate testing.