Index: clang/include/clang/Basic/Attr.td
===================================================================
--- clang/include/clang/Basic/Attr.td
+++ clang/include/clang/Basic/Attr.td
@@ -368,8 +368,8 @@
 def TargetX86 : TargetArch<["x86"]>;
 def TargetAnyX86 : TargetArch<["x86", "x86_64"]>;
 def TargetWebAssembly : TargetArch<["wasm32", "wasm64"]>;
-def TargetWindows : TargetArch<["x86", "x86_64", "arm", "thumb", "aarch64"]> {
-  let OSes = ["Win32"];
+def TargetHasDLLImportExport : TargetSpec {
+  let CustomCode = [{ Target.getTriple().hasDLLImportExport() }];
 }
 def TargetItaniumCXXABI : TargetSpec {
   let CustomCode = [{ Target.getCXXABI().isItaniumFamily() }];
@@ -3144,24 +3144,24 @@
   let SimpleHandler = 1;
 }
 
-def DLLExport : InheritableAttr, TargetSpecificAttr<TargetWindows> {
+def DLLExport : InheritableAttr, TargetSpecificAttr<TargetHasDLLImportExport> {
   let Spellings = [Declspec<"dllexport">, GCC<"dllexport">];
   let Subjects = SubjectList<[Function, Var, CXXRecord, ObjCInterface]>;
   let Documentation = [DLLExportDocs];
 }
 
-def DLLExportStaticLocal : InheritableAttr, TargetSpecificAttr<TargetWindows> {
+def DLLExportStaticLocal : InheritableAttr, TargetSpecificAttr<TargetHasDLLImportExport> {
   // This attribute is used internally only when -fno-dllexport-inlines is
-  // passed. This attribute is added to inline function of class having
-  // dllexport attribute. And if the function has static local variables, this
-  // attribute is used to whether the variables are exported or not. Also if
-  // function has local static variables, the function is dllexported too.
+  // passed. This attribute is added to inline functions of a class having the
+  // dllexport attribute. If the function has static local variables, this
+  // attribute is used to determine whether the variables are exported or not. If
+  // the function has local static variables, the function is dllexported too.
   let Spellings = [];
   let Subjects = SubjectList<[Function]>;
   let Documentation = [Undocumented];
 }
 
-def DLLImport : InheritableAttr, TargetSpecificAttr<TargetWindows> {
+def DLLImport : InheritableAttr, TargetSpecificAttr<TargetHasDLLImportExport> {
   let Spellings = [Declspec<"dllimport">, GCC<"dllimport">];
   let Subjects = SubjectList<[Function, Var, CXXRecord, ObjCInterface]>;
   let Documentation = [DLLImportDocs];
@@ -3177,11 +3177,11 @@
   }];
 }
 
-def DLLImportStaticLocal : InheritableAttr, TargetSpecificAttr<TargetWindows> {
+def DLLImportStaticLocal : InheritableAttr, TargetSpecificAttr<TargetHasDLLImportExport> {
   // This attribute is used internally only when -fno-dllexport-inlines is
-  // passed. This attribute is added to inline function of class having
-  // dllimport attribute. And if the function has static local variables, this
-  // attribute is used to whether the variables are imported or not.
+  // passed. This attribute is added to inline functions of a class having the
+  // dllimport attribute. If the function has static local variables, this
+  // attribute is used to determine whether the variables are imported or not.
   let Spellings = [];
   let Subjects = SubjectList<[Function]>;
   let Documentation = [Undocumented];
Index: clang/test/CodeGen/ps4-dllimport-dllexport.c
===================================================================
--- /dev/null
+++ clang/test/CodeGen/ps4-dllimport-dllexport.c
@@ -0,0 +1,27 @@
+// RUN: %clang_cc1 \
+// RUN:     -triple x86_64-scei-ps4 \
+// RUN:     -fdeclspec \
+// RUN:     -Werror \
+// RUN:     -emit-llvm %s -o - | \
+// RUN:   FileCheck %s
+
+__declspec(dllexport) int export_int;
+
+__declspec(dllimport) int import_int;
+
+__declspec(dllexport) void export_declared_function();
+
+__declspec(dllexport) void export_implemented_function() {
+}
+
+__declspec(dllimport) void import_function(int);
+
+void call_imported_function() {
+  export_declared_function();
+  return import_function(import_int);
+}
+
+// CHECK-DAG: @import_int = external dllimport
+// CHECK-DAG: @export_int = dllexport global i32 0
+// CHECK-DAG: define dllexport void @export_implemented_function()
+// CHECK-DAG: declare dllimport void @import_function(i32)
Index: llvm/include/llvm/ADT/Triple.h
===================================================================
--- llvm/include/llvm/ADT/Triple.h
+++ llvm/include/llvm/ADT/Triple.h
@@ -782,6 +782,9 @@
     return isOSBinFormatXCOFF() || isWasm();
   }
 
+  /// Tests if the environment supports dllimport/export annotations.
+  bool hasDLLImportExport() const { return isOSWindows() || isPS4CPU(); }
+
   /// @}
   /// @name Mutators
   /// @{