r335911 - [OPENMP] Fix incomplete type check for array reductions

[Joel E. Denny via cfe-commits]

Author: jdenny
Date: Thu Jun 28 12:54:49 2018
New Revision: 335911

URL: http://llvm.org/viewvc/llvm-project?rev=335911&view=rev
Log:
[OPENMP] Fix incomplete type check for array reductions

A reduction for an incomplete array type used to produce an assert
fail during codegen.  Now it produces a diagnostic.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D48735

Added:
    cfe/trunk/test/OpenMP/parallel_reduction_messages.c
Modified:
    cfe/trunk/lib/Sema/SemaOpenMP.cpp

Modified: cfe/trunk/lib/Sema/SemaOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaOpenMP.cpp?rev=335911&r1=335910&r2=335911&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaOpenMP.cpp (original)
+++ cfe/trunk/lib/Sema/SemaOpenMP.cpp Thu Jun 28 12:54:49 2018
@@ -10335,7 +10335,7 @@ static bool actOnOMPReductionKindClause(
     // OpenMP [2.9.3.3, Restrictions, C/C++, p.3]
     //  A variable that appears in a private clause must not have an incomplete
     //  type or a reference type.
-    if (S.RequireCompleteType(ELoc, Type,
+    if (S.RequireCompleteType(ELoc, D->getType(),
                               diag::err_omp_reduction_incomplete_type))
       continue;
     // OpenMP [2.14.3.6, reduction clause, Restrictions]

Added: cfe/trunk/test/OpenMP/parallel_reduction_messages.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/OpenMP/parallel_reduction_messages.c?rev=335911&view=auto
==============================================================================
--- cfe/trunk/test/OpenMP/parallel_reduction_messages.c (added)
+++ cfe/trunk/test/OpenMP/parallel_reduction_messages.c Thu Jun 28 12:54:49 2018
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -verify -fopenmp -ferror-limit 150 -o - %s
+
+int incomplete[];
+
+void test() {
+#pragma omp parallel reduction(+ : incomplete) // expected-error {{a reduction list item with incomplete type 'int []'}}
+  ;
+}
+
+// complete to suppress an additional warning, but it's too late for pragmas
+int incomplete[3];