diff --git a/llvm/test/tools/llvm-rc/Inputs/tag-user.rc b/llvm/test/tools/llvm-rc/Inputs/tag-user.rc
--- a/llvm/test/tools/llvm-rc/Inputs/tag-user.rc
+++ b/llvm/test/tools/llvm-rc/Inputs/tag-user.rc
@@ -1,8 +1,8 @@
 500 500 {
-  1, 2, 3, 4, 5, "data", L"wide data", 0xABCD, 0xABCDEF01L
+  1, 2 3, ,4, 5, "da", "ta" L"wide data", 0xABCD, 0xABCDEF01L
 }
 501 RCDATA {
-  1, 2, 3, 4, 5, "data", L"wide data", 0xABCD, 0xABCDEF01L
+  1, 2, 3, 4, 5, "da" "ta" L"wide", L" data", 0xABCD 0xABCDEF01L,
 }
 
 NAME1 NAME2 {}
diff --git a/llvm/tools/llvm-rc/ResourceScriptParser.cpp b/llvm/tools/llvm-rc/ResourceScriptParser.cpp
--- a/llvm/tools/llvm-rc/ResourceScriptParser.cpp
+++ b/llvm/tools/llvm-rc/ResourceScriptParser.cpp
@@ -509,15 +509,13 @@
   RETURN_IF_ERROR(consumeType(Kind::BlockBegin));
   std::vector<IntOrString> Data;
 
-  // Consume comma before each consecutive token except the first one.
-  bool ConsumeComma = false;
   while (!consumeOptionalType(Kind::BlockEnd)) {
-    if (ConsumeComma)
-      RETURN_IF_ERROR(consumeType(Kind::Comma));
-    ConsumeComma = true;
-
     ASSIGN_OR_RETURN(Item, readIntOrString());
     Data.push_back(*Item);
+
+    // There can be zero or more commas after each token (but not before
+    // the first one).
+    while (consumeOptionalType(Kind::Comma));
   }
 
   return std::make_unique<UserDefinedResource>(Type, std::move(Data),