[flang-commits] [flang] [flang][openacc] Ignore bare acc routine in module subprogram part instead of erroring out (PR #205450)

[Valentin Clement バレンタイン クレメン via flang-commits]

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@@ -88,6 +88,26 @@ static constexpr auto globalOpenACCCompilerDirective{
     construct<ProgramUnit>(indirect(skipStuffBeforeStatement >>
         "!$ACC "_sptok >> Parser<OpenACCRoutineConstruct>{} / endOfLine))};
 
+struct WarnUnnamedOpenACCRoutineDirective {
+  using resultType = Success;
+  std::optional<Success> Parse(ParseState &state) const {
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clementval wrote:

I can piggy back on that. In the reference compiler, the test added here doesn't raise an error but I think it is fine to keep the behavior we have now since the semantic of this directive in the wild is unknown, the user should do smth about it. 

https://github.com/llvm/llvm-project/pull/205450