Allow null to be an element of NamedMDNode. e.g. !llvm.stuff = !{!0, !1, null}

llvm-svn: 92783

1 files changed, 6 insertions, 0 deletions

diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index ca001c1f09d..99ddeb682b8 100644
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -512,6 +512,12 @@ bool LLParser::ParseNamedMetadata() {
 
   SmallVector<MDNode *, 8> Elts;
   do {
+    // Null is a special case since it is typeless.
+    if (EatIfPresent(lltok::kw_null)) {
+      Elts.push_back(0);
+      continue;
+    }
+
     if (ParseToken(lltok::exclaim, "Expected '!' here"))
       return true;