[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/parallel_for_private_messages.cpp b/clang/test/OpenMP/parallel_for_private_messages.cpp
index 31b84588de0..8d0ba629b83 100644
--- a/clang/test/OpenMP/parallel_for_private_messages.cpp
+++ b/clang/test/OpenMP/parallel_for_private_messages.cpp
@@ -108,6 +108,14 @@ 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 B {
+using A::x;
+}
+
 int main(int argc, char **argv) {
   S4 e(4);
   S5 g(5);
@@ -146,7 +154,7 @@ int main(int argc, char **argv) {
 #pragma omp parallel for private(e, g) // expected-error {{calling a private constructor of class 'S4'}} expected-error {{calling a private constructor of class 'S5'}}
   for (int k = 0; k < argc; ++k)
     ++k;
-#pragma omp parallel for private(h) // expected-error {{threadprivate or thread local variable cannot be private}}
+#pragma omp parallel for private(h, B::x) // expected-error 2 {{threadprivate or thread local variable cannot be private}}
   for (int k = 0; k < argc; ++k)
     ++k;
 #pragma omp parallel for nowait // expected-error {{unexpected OpenMP clause 'nowait' in directive '#pragma omp parallel for'}}