1 files changed, 33 insertions, 5 deletions
diff --git a/contrib/llvm/tools/clang/lib/Sema/SemaDeclAttr.cpp b/contrib/llvm/tools/clang/lib/Sema/SemaDeclAttr.cpp
index 17c6975ca5e9..bb5434a03a10 100644
--- a/contrib/llvm/tools/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/contrib/llvm/tools/clang/lib/Sema/SemaDeclAttr.cpp
@@ -1941,17 +1941,26 @@ static void handleNakedAttr(Sema &S, Decl *D, const AttributeList &Attr) {
 static void handleNoReturnAttr(Sema &S, Decl *D, const AttributeList &attr) {
   if (hasDeclarator(D)) return;
 
-  if (S.CheckNoReturnAttr(attr)) return;
+  if (S.CheckNoReturnAttr(attr))
+    return;
 
   if (!isa<ObjCMethodDecl>(D)) {
     S.Diag(attr.getLoc(), diag::warn_attribute_wrong_decl_type)
-      << attr.getName() << ExpectedFunctionOrMethod;
+        << attr.getName() << ExpectedFunctionOrMethod;
     return;
   }
 
-  D->addAttr(::new (S.Context)
-             NoReturnAttr(attr.getRange(), S.Context,
-                          attr.getAttributeSpellingListIndex()));
+  D->addAttr(::new (S.Context) NoReturnAttr(
+      attr.getRange(), S.Context, attr.getAttributeSpellingListIndex()));
+}
+
+static void handleNoCallerSavedRegsAttr(Sema &S, Decl *D,
+                                        const AttributeList &Attr) {
+  if (S.CheckNoCallerSavedRegsAttr(Attr))
+    return;
+
+  D->addAttr(::new (S.Context) AnyX86NoCallerSavedRegistersAttr(
+      Attr.getRange(), S.Context, Attr.getAttributeSpellingListIndex()));
 }
 
 bool Sema::CheckNoReturnAttr(const AttributeList &attr) {
@@ -1963,6 +1972,22 @@ bool Sema::CheckNoReturnAttr(const AttributeList &attr) {
   return false;
 }
 
+bool Sema::CheckNoCallerSavedRegsAttr(const AttributeList &Attr) {
+  // Check whether the attribute is valid on the current target.
+  if (!Attr.existsInTarget(Context.getTargetInfo())) {
+    Diag(Attr.getLoc(), diag::warn_unknown_attribute_ignored) << Attr.getName();
+    Attr.setInvalid();
+    return true;
+  }
+
+  if (!checkAttributeNumArgs(*this, Attr, 0)) {
+    Attr.setInvalid();
+    return true;
+  }
+
+  return false;
+}
+
 static void handleAnalyzerNoReturnAttr(Sema &S, Decl *D,
                                        const AttributeList &Attr) {
   
@@ -6428,6 +6453,9 @@ static void ProcessDeclAttribute(Sema &S, Scope *scope, Decl *D,
   case AttributeList::AT_TypeTagForDatatype:
     handleTypeTagForDatatypeAttr(S, D, Attr);
     break;
+  case AttributeList::AT_AnyX86NoCallerSavedRegisters:
+    handleNoCallerSavedRegsAttr(S, D, Attr);
+    break;
   case AttributeList::AT_RenderScriptKernel:
     handleSimpleAttribute<RenderScriptKernelAttr>(S, D, Attr);
     break;