[OPENMP] Fix for checking of data-sharing attributes for canonical var decls only.

Currently checks for active data-sharing attributes for variables are performed for found var decls. Instead these checks must be performed for canonical decls of these variables to avoid possible troubles with with the differently qualified re-declarations of the same variable, for example:
namespace A { int x; }
namespace B { using A::x; }
Both A::x and B::x actually reference the same object A::x and this fact must be taken into account during data-sharing attributes analysis.

llvm-svn: 235096

1 files changed, 9 insertions, 1 deletions

diff --git a/clang/test/OpenMP/task_shared_messages.cpp b/clang/test/OpenMP/task_shared_messages.cpp
index 747923721b9..2dda25a78b0 100644
--- a/clang/test/OpenMP/task_shared_messages.cpp
+++ b/clang/test/OpenMP/task_shared_messages.cpp
@@ -48,6 +48,14 @@ public:
 S3 h;
 #pragma omp threadprivate(h) // expected-note {{defined as threadprivate or thread local}}
 
+namespace A {
+double x;
+#pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
+}
+namespace B {
+using A::x;
+}
+
 int main(int argc, char **argv) {
   const int d = 5;
   const int da[5] = {0};
@@ -83,7 +91,7 @@ int main(int argc, char **argv) {
   foo();
 #pragma omp task shared(e, g)
   foo();
-#pragma omp task shared(h)             // expected-error {{threadprivate or thread local variable cannot be shared}}
+#pragma omp task shared(h, B::x)             // expected-error 2 {{threadprivate or thread local variable cannot be shared}}
   foo();
 #pragma omp task private(i), shared(i) // expected-error {{private variable cannot be shared}} expected-note {{defined as private}}
   foo();