[MSExtensions] Add support for __forceinline.

__forceinline is a combination of the inline keyword and __attribute__((always_inline))

llvm-svn: 158653

1 files changed, 10 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaDeclAttr.cpp b/clang/lib/Sema/SemaDeclAttr.cpp
index 516f6976522..b8df752b38d 100644
--- a/clang/lib/Sema/SemaDeclAttr.cpp
+++ b/clang/lib/Sema/SemaDeclAttr.cpp
@@ -3888,6 +3888,13 @@ static void handlePortabilityAttr(Sema &S, Decl *D, const AttributeList &Attr) {
     S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName();
 }
 
+static void handleForceInlineAttr(Sema &S, Decl *D, const AttributeList &Attr) {
+  if (S.LangOpts.MicrosoftExt)
+    D->addAttr(::new (S.Context) ForceInlineAttr(Attr.getRange(), S.Context));
+  else
+    S.Diag(Attr.getLoc(), diag::warn_attribute_ignored) << Attr.getName();
+}
+
 //===----------------------------------------------------------------------===//
 // Top Level Sema Entry Points
 //===----------------------------------------------------------------------===//
@@ -4082,6 +4089,9 @@ static void ProcessInheritableDeclAttr(Sema &S, Scope *scope, Decl *D,
   case AttributeList::AT_ptr64:
     handlePortabilityAttr(S, D, Attr);
     break;
+  case AttributeList::AT_forceinline:
+    handleForceInlineAttr(S, D, Attr);
+    break;
 
   // Thread safety attributes:
   case AttributeList::AT_guarded_var: