[flang-commits] [flang] [Flang][Parser] Handle compiler directives inside INTERFACE blocks (PR #198516)

[Eugene Epshteyn via flang-commits]

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@@ -0,0 +1,42 @@
+! RUN: %python %S/test_modfile.py %s %flang_fc1
+! Check that recognized compiler directives in interface blocks
+! survive module file serialization and parsing.
+
+module m
+  interface
+    subroutine sub(x)
+!dir$ ignore_tkr(t) x
+      real, intent(in) :: x
+    end subroutine
+  end interface
+end module
+
+!Expect: m.mod
+!module m
+! interface
+!  subroutine sub(x)
+!   real(4),intent(in)::x
+!   !dir$ ignore_tkr(t) x
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eugeneepshteyn wrote:

Well, `ignore_tkr` is inside subroutine declaration and this worked before this PR. Is there any directive that could be between the procedure declarations that currently could survive serialization to the module? If not, then we can't have such test now.

https://github.com/llvm/llvm-project/pull/198516