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6f8ef1d6e8
This patch adds a new abstract class for frontend actions: `PrescanAndSemaDebugAction`. It's almost identical to `PrescanAndSemaAction`, but in the presence of semantic errors it does not skip the corresponding `ExecuteAction` specialisation. Instead, it runs it as if there were no semantic errors. This class is for developer actions only (i.e. front-end driver options). The new behaviour does not affect the return code from `flang-new -fc1` when the input file is semantically incorrect. The return code is inferred from the number of driver diagnostics generated in `CompilerInstance::ExecuteAction` and this patch does not change that. More specifically, the semantic errors are still reported and hence the driver is able to correctly report that the compilation has failed (with a non-zero return code). This new base class is meant for debug actions only and `DebugDumpAllAction` is updated to demonstrate the new behaviour. With this change, `flang-new -fc1 -fdebug-dump-all` dumps the parse tree and symbols for all input files, regardless of whether any semantic errors were found. This patch addresses https://bugs.llvm.org/show_bug.cgi?id=52097. Differential Revision: https://reviews.llvm.org/D111308
22 lines
476 B
Fortran
22 lines
476 B
Fortran
! Verify that -fdebug-dump-all dumps both symbols and the parse tree, even when semantic errors are present
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!----------
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! RUN lines
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!----------
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! RUN: not %flang_fc1 -fdebug-dump-all %s 2>&1 | FileCheck %s
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!----------------
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! EXPECTED OUTPUT
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!----------------
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! CHECK: error: Semantic errors in
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! CHECK: Flang: parse tree dump
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! CHECK: Flang: symbols dump
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!-------
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! INPUT
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!-------
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program bad
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real,pointer :: x
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x = null() ! Error - must be pointer assignment
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end
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