Add the returns_twice attribute to LLVM.

llvm-svn: 141001
diff --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp
index fdadd1b..029f942 100644
--- a/llvm/lib/AsmParser/LLLexer.cpp
+++ b/llvm/lib/AsmParser/LLLexer.cpp
@@ -558,6 +558,7 @@
   KEYWORD(readnone);
   KEYWORD(readonly);
   KEYWORD(uwtable);
+  KEYWORD(returns_twice);
 
   KEYWORD(inlinehint);
   KEYWORD(noinline);
diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index 4d233ca..cafaab0 100644
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -911,6 +911,7 @@
     case lltok::kw_noreturn:        Attrs |= Attribute::NoReturn; break;
     case lltok::kw_nounwind:        Attrs |= Attribute::NoUnwind; break;
     case lltok::kw_uwtable:         Attrs |= Attribute::UWTable; break;
+    case lltok::kw_returns_twice:   Attrs |= Attribute::ReturnsTwice; break;
     case lltok::kw_noinline:        Attrs |= Attribute::NoInline; break;
     case lltok::kw_readnone:        Attrs |= Attribute::ReadNone; break;
     case lltok::kw_readonly:        Attrs |= Attribute::ReadOnly; break;
@@ -922,7 +923,6 @@
     case lltok::kw_noredzone:       Attrs |= Attribute::NoRedZone; break;
     case lltok::kw_noimplicitfloat: Attrs |= Attribute::NoImplicitFloat; break;
     case lltok::kw_naked:           Attrs |= Attribute::Naked; break;
-    case lltok::kw_hotpatch:        Attrs |= Attribute::Hotpatch; break;
     case lltok::kw_nonlazybind:     Attrs |= Attribute::NonLazyBind; break;
 
     case lltok::kw_alignstack: {
diff --git a/llvm/lib/AsmParser/LLToken.h b/llvm/lib/AsmParser/LLToken.h
index d22ecf3..acdd4b8 100644
--- a/llvm/lib/AsmParser/LLToken.h
+++ b/llvm/lib/AsmParser/LLToken.h
@@ -90,6 +90,7 @@
     kw_readnone,
     kw_readonly,
     kw_uwtable,
+    kw_returns_twice,
 
     kw_inlinehint,
     kw_noinline,