[LangRef] Update ifunc syntax

Extracted from Itay Bookstein's D108872.

diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index 51558ddb7ff85641ab5729a18105fca1aae96f6e..ed62a1b01ecb6b8d121655b329298ff44f55cef9 100644 (file)
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -907,7 +907,7 @@ IFunc may have an optional :ref:`linkage type <linkage>` and an optional
 
 Syntax::
 
-    @<Name> = [Linkage] [Visibility] ifunc <IFuncTy>, <ResolverTy>* @<Resolver>
+    @<Name> = [Linkage] [PreemptionSpecifier] [Visibility] ifunc <IFuncTy>, <ResolverTy>* @<Resolver>
 
 
 .. _langref_comdats: