Prevent cpu-specific/cpu-dispatch from giong on a lambda.

It is non-sensical to use cpu-specific/cpu-dispatch multiversioning
on a lambda, so prevent it when trying to add the attribute.

llvm-svn: 341833

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index 65c636b94ea..db5df4db802 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -1842,6 +1842,14 @@ static void handleRestrictAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
 
 static void handleCPUSpecificAttr(Sema &S, Decl *D, const ParsedAttr &AL) {
   FunctionDecl *FD = cast<FunctionDecl>(D);
+
+  if (const auto *MD = dyn_cast<CXXMethodDecl>(D)) {
+    if (MD->getParent()->isLambda()) {
+      S.Diag(AL.getLoc(), diag::err_attribute_dll_lambda) << AL;
+      return;
+    }
+  }
+
   if (!checkAttributeAtLeastNumArgs(S, AL, 1))
     return;