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
12 lines
302 B
Fortran
12 lines
302 B
Fortran
! RUN: %flang -E %s 2>&1 | FileCheck %s
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! CHECK: if (.TRUE .) then
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! CHECK: print *, 'pp036.F no: ', .TRUE .
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* #define FALSE TRUE ... .FALSE. -> .TRUE.
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#define FALSE TRUE
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if (.FALSE.) then
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print *, 'pp036.F yes'
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else
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print *, 'pp036.F no: ', .FALSE.
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end if
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end
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