[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_private_messages.cpp b/clang/test/OpenMP/task_private_messages.cpp
index 0352694d579..bf2a24a4a0c 100644
--- a/clang/test/OpenMP/task_private_messages.cpp
+++ b/clang/test/OpenMP/task_private_messages.cpp
@@ -45,6 +45,14 @@ public:
 int threadvar;
 #pragma omp threadprivate(threadvar) // 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;       // expected-note {{constant variable is predetermined as shared}}
   const int da[5] = {0}; // expected-note {{constant variable is predetermined as shared}}
@@ -67,7 +75,7 @@ int main(int argc, char **argv) {
 #pragma omp task private(da)           // expected-error {{shared variable cannot be private}}
 #pragma omp task private(S2::S2s)
 #pragma omp task private(e, g)         // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}}
-#pragma omp task private(threadvar)    // expected-error {{threadprivate or thread local variable cannot be private}}
+#pragma omp task private(threadvar, B::x)    // expected-error 2 {{threadprivate or thread local variable cannot be private}}
 #pragma omp task shared(i), private(i) // expected-error {{shared variable cannot be private}} expected-note {{defined as shared}}
   foo();
 #pragma omp task firstprivate(i) private(i) // expected-error {{firstprivate variable cannot be private}} expected-note {{defined as firstprivate}}