diff options
author | Andrzej Warzynski <andrzej.warzynski@arm.com> | 2021-03-30 10:35:42 +0000 |
---|---|---|
committer | Andrzej Warzynski <andrzej.warzynski@arm.com> | 2021-04-08 09:44:19 +0000 |
commit | e81b3401177a67481605447ea5250d8345cb4341 (patch) | |
tree | 8fd92df50ee929a1f143f426e71c461e3f33db65 /flang/lib/FrontendTool | |
parent | 8675ef100f8cbf59f2e90f4836fb92db83b6062e (diff) | |
download | llvm-e81b3401177a67481605447ea5250d8345cb4341.zip llvm-e81b3401177a67481605447ea5250d8345cb4341.tar.gz llvm-e81b3401177a67481605447ea5250d8345cb4341.tar.bz2 |
[flang][driver] Add debug options not requiring semantic checks
This patch adds two debugging options in the new Flang driver
(flang-new):
*fdebug-unparse-no-sema
*fdebug-dump-parse-tree-no-sema
Each of these options combines two options from the "throwaway" driver
(left: f18, right: flang-new):
* `-fdebug-uparse -fdebug-no-semantics` --> `-fdebug-unparse-no-sema`
* `-fdebug-dump-parse-tree -fdebug-no-semantics` -->
`-fdebug-dump-parse-tree-no-sema`
There are no plans to implement `-fdebug-no-semantics` in the new
driver. Such option would be too powerful. Also, it would only make
sense when combined with specific frontend actions (`-fdebug-unparse`
and `-fdebug-dump-parse-tree`). Instead, this patch adds 2 specialised
options listed above. Each of these is implemented through a dedicated
FrontendAction (also added).
The new frontend actions are implemented in terms of a new abstract base
action: `PrescanAndSemaAction`. This new base class was required so that
we can have finer control over what steps within the frontend are
executed:
* `PrescanAction`: run the _prescanner_
* `PrescanAndSemaAction`: run the _prescanner_ and the _parser_ (new
in this patch)
* `PrescanAndSemaAction`: run the _prescanner_, _parser_ and run the
_semantic checks_
This patch introduces `PrescanAndParseAction::BeginSourceFileAction`.
Apart from the semantic checks removed at the end, it is similar to
`PrescanAndSemaAction::BeginSourceFileAction`.
Differential Revision: https://reviews.llvm.org/D99645
Diffstat (limited to 'flang/lib/FrontendTool')
-rw-r--r-- | flang/lib/FrontendTool/ExecuteCompilerInvocation.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/flang/lib/FrontendTool/ExecuteCompilerInvocation.cpp b/flang/lib/FrontendTool/ExecuteCompilerInvocation.cpp index 2a08e38..462de52 100644 --- a/flang/lib/FrontendTool/ExecuteCompilerInvocation.cpp +++ b/flang/lib/FrontendTool/ExecuteCompilerInvocation.cpp @@ -40,6 +40,9 @@ static std::unique_ptr<FrontendAction> CreateFrontendBaseAction( case DebugUnparse: return std::make_unique<DebugUnparseAction>(); break; + case DebugUnparseNoSema: + return std::make_unique<DebugUnparseNoSemaAction>(); + break; case DebugUnparseWithSymbols: return std::make_unique<DebugUnparseWithSymbolsAction>(); break; @@ -49,6 +52,9 @@ static std::unique_ptr<FrontendAction> CreateFrontendBaseAction( case DebugDumpParseTree: return std::make_unique<DebugDumpParseTreeAction>(); break; + case DebugDumpParseTreeNoSema: + return std::make_unique<DebugDumpParseTreeNoSemaAction>(); + break; case DebugDumpProvenance: return std::make_unique<DebugDumpProvenanceAction>(); break; |