[OPENMP50]Allow functions in declare variant directive to have different

C linkage.

After some discussion with OpenMP developers, it was decided that the
functions with the different C linkage can be used in declare variant
directive.

llvm-svn: 374057

1 files changed, 12 insertions, 0 deletions

diff --git a/clang/test/OpenMP/declare_variant_implementation_vendor_codegen.cpp b/clang/test/OpenMP/declare_variant_implementation_vendor_codegen.cpp
index b0940751b76..1c200cca909 100644
--- a/clang/test/OpenMP/declare_variant_implementation_vendor_codegen.cpp
+++ b/clang/test/OpenMP/declare_variant_implementation_vendor_codegen.cpp
@@ -22,6 +22,8 @@
 // CHECK-DAG: ret i32 7
 // CHECK-DAG: ret i32 82
 // CHECK-DAG: ret i32 83
+// CHECK-DAG: ret i32 85
+// CHECK-DAG: ret i32 86
 // CHECK-NOT: ret i32 {{1|4|81|84}}
 
 #ifndef HEADER
@@ -110,4 +112,14 @@ static int prio1_() { return 1; }
 
 int int_fn() { return prio1_(); }
 
+int fn_linkage_variant() { return 85; }
+extern "C" {
+#pragma omp declare variant(fn_linkage_variant) match(implementation = {vendor(llvm)})
+int fn_linkage() { return 1; }
+}
+
+extern "C" int fn_linkage_variant1() { return 86; }
+#pragma omp declare variant(fn_linkage_variant1) match(implementation = {vendor(llvm)})
+int fn_linkage1() { return 1; }
+
 #endif // HEADER