[PATCH] D74144: [OPENMP50]Add basic support for array-shaping operation.

Johannes Doerfert via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Fri Mar 6 09:19:07 PST 2020


jdoerfert added inline comments.


================
Comment at: clang/lib/Parse/ParseExpr.cpp:2891
                                           ArgExprs);
     }
+  } else if (!getLangOpts().ObjC && getLangOpts().OpenMP >= 50 &&
----------------
Out of curiosity, why do we prevent Objective C here? I doubt anyone runs it in OpenMP mode but it would be kinda cool.


================
Comment at: clang/lib/Sema/SemaExpr.cpp:4744
+  // Delay analysis of the types/expressions if instantiation/specialixzation is
+  // required.
+  if (!BaseTy->isAnyPointerType() &&
----------------
Typo above.


================
Comment at: clang/lib/Sema/SemaExpr.cpp:4750
+    return OMPArrayShapingExpr::Create(Context, Context.DependentTy, Base,
+                                       LParenLoc, RParenLoc, Dims, Brackets);
+  if (!BaseTy->isAnyPointerType())
----------------
Does this trigger as well if BaseTy is a pointer type but dependent? I mean, why do we need the first check (`!BaseTy->isAnyPointerType() &&`)?


================
Comment at: clang/test/OpenMP/parallel_reduction_messages.c:8
+#pragma omp parallel reduction(+ : incomplete, ([10])p) // expected-error {{a reduction list item with incomplete type 'int []'}} omp45-error {{expected expression}} omp50-error {{expected variable name, array element or array section}}
   ;
 }
----------------
Why is there a 50 error here?


================
Comment at: clang/test/OpenMP/task_ast_print.cpp:153
+#pragma omp task untied mergeable depend(out:argv[:a][1], (arr)[0:],([argc][10])argv) if(task: argc > 0) priority(f)
+  // CHECK-NEXT: #pragma omp task untied mergeable depend(out : argv[:a][1],(arr)[0:],([argc][10])argv) if(task: argc > 0) priority(f)
   a = 2;
----------------
We do not complain that argc is non-constant. Is that on purpose?


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D74144/new/

https://reviews.llvm.org/D74144





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