[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, 10 insertions, 2 deletions

diff --git a/clang/test/OpenMP/simd_linear_messages.cpp b/clang/test/OpenMP/simd_linear_messages.cpp
index b8b78310799..94780fdaa4e 100644
--- a/clang/test/OpenMP/simd_linear_messages.cpp
+++ b/clang/test/OpenMP/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}}
@@ -177,7 +185,7 @@ int main(int argc, char **argv) {
   for (int k = 0; k < argc; ++k) ++k;
   // expected-error@+2 {{linear variable with incomplete type 'S1'}}
   // expected-error@+1 {{const-qualified variable cannot be linear}}
-  #pragma omp simd linear (a, b) 
+  #pragma omp simd linear(a, b)
   for (int k = 0; k < argc; ++k) ++k;
   #pragma omp simd linear (argv[1]) // expected-error {{expected variable name}}
   for (int k = 0; k < argc; ++k) ++k;
@@ -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 simd linear(e, g)
   for (int k = 0; k < argc; ++k) ++k;
-  #pragma omp simd linear(h) // expected-error {{threadprivate or thread local variable cannot be linear}}
+  #pragma omp 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
   {