[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/for_simd_linear_messages.cpp b/clang/test/OpenMP/for_simd_linear_messages.cpp
index 9a935c3fdf2..705c9f538c1 100644
--- a/clang/test/OpenMP/for_simd_linear_messages.cpp
+++ b/clang/test/OpenMP/for_simd_linear_messages.cpp
@@ -148,6 +148,14 @@ template<class I, class C> int foomain(I argc, C **argv) {
   return 0;
 }
 
+namespace A {
+double x;
+#pragma omp threadprivate(x) // expected-note {{defined as threadprivate or thread local}}
+}
+namespace C {
+using A::x;
+}
+
 int main(int argc, char **argv) {
   double darr[100];
   // expected-note@+1 {{in instantiation of function template specialization 'test_template<-4, double, int>' requested here}}
@@ -185,7 +193,7 @@ int main(int argc, char **argv) {
   // expected-error@+1 {{argument of a linear clause should be of integral or pointer type, not 'S5'}}
   #pragma omp for simd linear(e, g)
   for (int k = 0; k < argc; ++k) ++k;
-  #pragma omp for simd linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
+  #pragma omp for simd linear(h, C::x) // expected-error 2 {{threadprivate or thread local variable cannot be linear}}
   for (int k = 0; k < argc; ++k) ++k;
   #pragma omp parallel
   {