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3338ef93b0
Rename the current -E option to "-E -Xflang -fno-reformat". Add a new Parsing::EmitPreprocessedSource() routine to convert the cooked character stream output of the prescanner back to something more closely resembling output from a traditional preprocessor; call this new routine when -E appears. The new -E output is suitable for use as fixed form Fortran source to compilation by (one hopes) any Fortran compiler. If the original top-level source file had been free form source, the output will be suitable for use as free form source as well; otherwise there may be diagnostics about missing spaces if they were indeed absent in the original fixed form source. Unless the -P option appears, #line directives are interspersed with the output (but be advised, f18 will ignore these if presented with them in a later compilation). An effort has been made to preserve original alphabetic character case and source indentation. Add -P and -fno-reformat to the new drivers. Tweak test options to avoid confusion with prior -E output; use -fno-reformat where needed, but prefer to keep -E, sometimes in concert with -P, on most, updating expected results accordingly. Differential Revision: https://reviews.llvm.org/D106727
35 lines
1.1 KiB
Fortran
35 lines
1.1 KiB
Fortran
! Ensure arguments -D and -U work as expected.
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!--------------------------
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! FLANG DRIVER (flang-new)
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!--------------------------
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! RUN: %flang -E -P %s 2>&1 | FileCheck %s --check-prefix=UNDEFINED
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! RUN: %flang -E -P -DX=A %s 2>&1 | FileCheck %s --check-prefix=DEFINED
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! RUN: %flang -E -P -DX=A -UX %s 2>&1 | FileCheck %s --check-prefix=UNDEFINED
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!-----------------------------------------
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! FRONTEND FLANG DRIVER (flang-new -fc1)
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!-----------------------------------------
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! RUN: %flang_fc1 -E -P %s 2>&1 | FileCheck %s --check-prefix=UNDEFINED
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! RUN: %flang_fc1 -E -P -DX=A %s 2>&1 | FileCheck %s --check-prefix=DEFINED
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! RUN: %flang_fc1 -E -P -DX -UX %s 2>&1 | FileCheck %s --check-prefix=UNDEFINED
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!--------------------------------------------
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! EXPECTED OUTPUT FOR AN UNDEFINED MACRO
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!--------------------------------------------
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! UNDEFINED:program B
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! UNDEFINED-NOT:program X
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!--------------------------------------------
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! EXPECTED OUTPUT FOR MACRO 'X' DEFINED AS A
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!--------------------------------------------
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! DEFINED:program A
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! DEFINED-NOT:program B
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#ifdef X
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program X
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#else
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program B
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#endif
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end
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