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
14 lines
361 B
Fortran
14 lines
361 B
Fortran
! RUN: %flang -E %s 2>&1 | FileCheck %s
|
|
! CHECK: if (KWM2 .eq. 777) then
|
|
! KWM rescan with #undef, proving rescan after expansion
|
|
integer, parameter :: KWM2 = 777, KWM = 667
|
|
#define KWM2 666
|
|
#define KWM KWM2
|
|
#undef KWM2
|
|
if (KWM .eq. 777) then
|
|
print *, 'pp118.F90 yes'
|
|
else
|
|
print *, 'pp118.F90 no: ', KWM
|
|
end if
|
|
end
|