diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.h b/clang/lib/CodeGen/CGOpenMPRuntime.h
--- a/clang/lib/CodeGen/CGOpenMPRuntime.h
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.h
@@ -306,15 +306,10 @@
 
 protected:
   CodeGenModule &CGM;
-  StringRef FirstSeparator, Separator;
 
   /// An OpenMP-IR-Builder instance.
   llvm::OpenMPIRBuilder OMPBuilder;
 
-  /// Constructor allowing to redefine the name separator for the variables.
-  explicit CGOpenMPRuntime(CodeGenModule &CGM, StringRef FirstSeparator,
-                           StringRef Separator);
-
   /// Helper to emit outlined function for 'target' directive.
   /// \param D Directive to emit.
   /// \param ParentName Name of the function that encloses the target region.
@@ -691,8 +686,7 @@
                           Address DependenciesArray);
 
 public:
-  explicit CGOpenMPRuntime(CodeGenModule &CGM)
-      : CGOpenMPRuntime(CGM, ".", ".") {}
+  explicit CGOpenMPRuntime(CodeGenModule &CGM);
   virtual ~CGOpenMPRuntime() {}
   virtual void clear();
 
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
--- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -1057,14 +1057,11 @@
   return Field;
 }
 
-CGOpenMPRuntime::CGOpenMPRuntime(CodeGenModule &CGM, StringRef FirstSeparator,
-                                 StringRef Separator)
-    : CGM(CGM), FirstSeparator(FirstSeparator), Separator(Separator),
-      OMPBuilder(CGM.getModule()), OffloadEntriesInfoManager() {
+CGOpenMPRuntime::CGOpenMPRuntime(CodeGenModule &CGM)
+    : CGM(CGM), OMPBuilder(CGM.getModule()), OffloadEntriesInfoManager() {
   KmpCriticalNameTy = llvm::ArrayType::get(CGM.Int32Ty, /*NumElements*/ 8);
   llvm::OpenMPIRBuilderConfig Config(CGM.getLangOpts().OpenMPIsDevice, false,
                                      hasRequiresUnifiedSharedMemory());
-
   // Initialize Types used in OpenMPIRBuilder from OMPKinds.def
   OMPBuilder.initialize();
   OMPBuilder.setConfig(Config);
@@ -1088,14 +1085,7 @@
 }
 
 std::string CGOpenMPRuntime::getName(ArrayRef<StringRef> Parts) const {
-  SmallString<128> Buffer;
-  llvm::raw_svector_ostream OS(Buffer);
-  StringRef Sep = FirstSeparator;
-  for (StringRef Part : Parts) {
-    OS << Sep << Part;
-    Sep = Separator;
-  }
-  return std::string(OS.str());
+  return OMPBuilder.createPlatformSpecificName(Parts);
 }
 
 static llvm::Function *
diff --git a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
--- a/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntimeGPU.cpp
@@ -889,7 +889,7 @@
 }
 
 CGOpenMPRuntimeGPU::CGOpenMPRuntimeGPU(CodeGenModule &CGM)
-    : CGOpenMPRuntime(CGM, "_", "$") {
+    : CGOpenMPRuntime(CGM) {
   llvm::OpenMPIRBuilderConfig Config(CGM.getLangOpts().OpenMPIsDevice, true,
                                      hasRequiresUnifiedSharedMemory());
   OMPBuilder.setConfig(Config);
diff --git a/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h b/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
--- a/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
+++ b/llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h
@@ -92,34 +92,61 @@
   /// directive is present or not.
   Optional<bool> HasRequiresUnifiedSharedMemory;
 
+  /// First separator used between the initial two parts of a name.
+  Optional<StringRef> FirstSeparator;
+  /// Separator used between all of the rest consecutive parts of s name
+  Optional<StringRef> Separator;
+
   OpenMPIRBuilderConfig() {}
   OpenMPIRBuilderConfig(bool IsEmbedded, bool IsTargetCodegen,
                         bool HasRequiresUnifiedSharedMemory)
       : IsEmbedded(IsEmbedded), IsTargetCodegen(IsTargetCodegen),
         HasRequiresUnifiedSharedMemory(HasRequiresUnifiedSharedMemory) {}
 
-  // Convenience getter functions that assert if the value is not present.
-  bool isEmbedded() {
+  // Getters functions that assert if the required values are not present.
+  bool isEmbedded() const {
     assert(IsEmbedded.has_value() && "IsEmbedded is not set");
     return IsEmbedded.value();
   }
 
-  bool isTargetCodegen() {
+  bool isTargetCodegen() const {
     assert(IsTargetCodegen.has_value() && "IsTargetCodegen is not set");
     return IsTargetCodegen.value();
   }
 
-  bool hasRequiresUnifiedSharedMemory() {
+  bool hasRequiresUnifiedSharedMemory() const {
     assert(HasRequiresUnifiedSharedMemory.has_value() &&
            "HasUnifiedSharedMemory is not set");
     return HasRequiresUnifiedSharedMemory.value();
   }
 
+  // Returns the FirstSeparator if set, otherwise use the default
+  // separator depending on isTargetCodegen
+  StringRef firstSeparator() const {
+    if (FirstSeparator.has_value())
+      return FirstSeparator.value();
+    if (isTargetCodegen())
+      return "_";
+    return ".";
+  }
+
+  // Returns the Separator if set, otherwise use the default
+  // separator depending on isTargetCodegen
+  StringRef separator() const {
+    if (Separator.has_value())
+      return Separator.value();
+    if (isTargetCodegen())
+      return "$";
+    return ".";
+  }
+
   void setIsEmbedded(bool Value) { IsEmbedded = Value; }
   void setIsTargetCodegen(bool Value) { IsTargetCodegen = Value; }
   void setHasRequiresUnifiedSharedMemory(bool Value) {
     HasRequiresUnifiedSharedMemory = Value;
   }
+  void setFirstSeparator(StringRef FS) { FirstSeparator = FS; }
+  void setSeparator(StringRef S) { Separator = S; }
 };
 
 /// An interface to create LLVM-IR for OpenMP directives.
@@ -150,6 +177,16 @@
   /// Type used throughout for insertion points.
   using InsertPointTy = IRBuilder<>::InsertPoint;
 
+  /// Get the create a name using the platform specific separators.
+  /// \param Parts parts of the final name that needs separation
+  /// The created name has a first separator between the first and second part
+  /// and a second separator between all other parts.
+  /// E.g. with FirstSeparator "$" and Separator "." and
+  /// parts: "p1", "p2", "p3", "p4"
+  /// The resulting name is "p1$p2.p3.p4"
+  /// The separators are retrieved from the OpenMPIRBuilderConfig.
+  std::string createPlatformSpecificName(ArrayRef<StringRef> Parts) const;
+
   /// Callback type for variable finalization (think destructors).
   ///
   /// \param CodeGenIP is the insertion point at which the finalization code
diff --git a/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp b/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
--- a/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
+++ b/llvm/lib/Frontend/OpenMP/OMPIRBuilder.cpp
@@ -3963,6 +3963,12 @@
   return OS.str().str();
 }
 
+std::string
+OpenMPIRBuilder::createPlatformSpecificName(ArrayRef<StringRef> Parts) const {
+  return OpenMPIRBuilder::getNameWithSeparators(Parts, Config.firstSeparator(),
+                                                Config.separator());
+}
+
 GlobalVariable *
 OpenMPIRBuilder::getOrCreateInternalVariable(Type *Ty, const StringRef &Name,
                                              unsigned AddressSpace) {