96d229c9ab
This patch adds the following compiler frontend driver options: * -fdebug-unparse (f18 spelling: -funparse) * -fdebug-unparse-with-symbols (f18 spelling: -funparse-with-symbols) The new driver will only accept the new spelling. `f18` will accept both the original and the new spelling. A new base class for frontend actions is added: `PrescanAndSemaAction`. This is added to reduce code duplication that otherwise these new options would lead to. Implementation from * `ParseSyntaxOnlyAction::ExecutionAction` is moved to: * `PrescanAndSemaAction::BeginSourceFileAction` This implementation is now shared between: * PrescanAndSemaAction * ParseSyntaxOnlyAction * DebugUnparseAction * DebugUnparseWithSymbolsAction All tests that don't require other yet unimplemented options are updated. This way `flang-new -fc1` is used instead of `f18` when `FLANG_BUILD_NEW_DRIVER` is set to `On`. In order to facilitate this, `%flang_fc1` is added in the LIT configuration (lit.cfg.py). `asFortran` from f18.cpp is duplicated as `getBasicAsFortran` in FrontendOptions.cpp. At this stage it's hard to find a good place to share this method. I suggest that we revisit this once a switch from `f18` to `flang-new` is complete. Differential Revision: https://reviews.llvm.org/D96483
20 lines
351 B
Fortran
20 lines
351 B
Fortran
! RUN: %flang_fc1 -fdebug-unparse %s 2>&1 | FileCheck %s
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#define pmk
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#ifdef pmk // comment
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! CHECK: t1
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real t1
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#endif // comment
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#undef pmk ! comment
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#ifndef pmk ! comment
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! CHECK: t2
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real t2
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#endif // comment
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#if 0 /* C comment */ + 0
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! CHECK-NOT: misinterpreted
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# error misinterpreted #if
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#else // comment
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! CHECK: END PROGRAM
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end
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#endif ! comment
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