AsmParser: Add stubs for specialized MDNodes, NFC

Well, the exact error from the failed parse will change, but...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@228644 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/IR/Metadata.def

@@ -13,7 +13,9 @@
 
 #if !(defined HANDLE_METADATA || defined HANDLE_METADATA_LEAF ||               \
       defined HANDLE_METADATA_BRANCH || defined HANDLE_MDNODE_LEAF ||          \
-      defined HANDLE_MDNODE_BRANCH)
+      defined HANDLE_MDNODE_BRANCH ||                                          \
+      defined HANDLE_SPECIALIZED_MDNODE_LEAF ||                                \
+      defined HANDLE_SPECIALIZED_MDNODE_BRANCH)
 #error "Missing macro definition of HANDLE_METADATA*"
 #endif
 
@@ -42,44 +44,56 @@
 #define HANDLE_MDNODE_BRANCH(CLASS) HANDLE_METADATA_BRANCH(CLASS)
 #endif
 
+// Handler for specialized leaf nodes under MDNode.
+#ifndef HANDLE_SPECIALIZED_MDNODE_LEAF
+#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) HANDLE_MDNODE_LEAF(CLASS)
+#endif
+
+// Handler for specialized non-leaf nodes under MDNode.
+#ifndef HANDLE_SPECIALIZED_MDNODE_BRANCH
+#define HANDLE_SPECIALIZED_MDNODE_BRANCH(CLASS) HANDLE_MDNODE_BRANCH(CLASS)
+#endif
+
 HANDLE_METADATA_LEAF(MDString)
 HANDLE_METADATA_BRANCH(ValueAsMetadata)
 HANDLE_METADATA_LEAF(ConstantAsMetadata)
 HANDLE_METADATA_LEAF(LocalAsMetadata)
 HANDLE_MDNODE_BRANCH(MDNode)
 HANDLE_MDNODE_LEAF(MDTuple)
-HANDLE_MDNODE_LEAF(MDLocation)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDLocation)
-HANDLE_MDNODE_BRANCH(DebugNode)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(DebugNode)
-HANDLE_MDNODE_LEAF(GenericDebugNode)
+HANDLE_SPECIALIZED_MDNODE_LEAF(GenericDebugNode)
-HANDLE_MDNODE_LEAF(MDSubrange)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDSubrange)
-HANDLE_MDNODE_LEAF(MDEnumerator)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDEnumerator)
-HANDLE_MDNODE_BRANCH(MDScope)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(MDScope)
-HANDLE_MDNODE_BRANCH(MDType)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(MDType)
-HANDLE_MDNODE_LEAF(MDBasicType)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDBasicType)
-HANDLE_MDNODE_BRANCH(MDDerivedTypeBase)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(MDDerivedTypeBase)
-HANDLE_MDNODE_LEAF(MDDerivedType)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDDerivedType)
-HANDLE_MDNODE_BRANCH(MDCompositeTypeBase)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(MDCompositeTypeBase)
-HANDLE_MDNODE_LEAF(MDCompositeType)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDCompositeType)
-HANDLE_MDNODE_LEAF(MDSubroutineType)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDSubroutineType)
-HANDLE_MDNODE_LEAF(MDFile)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDFile)
-HANDLE_MDNODE_LEAF(MDCompileUnit)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDCompileUnit)
-HANDLE_MDNODE_LEAF(MDSubprogram)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDSubprogram)
-HANDLE_MDNODE_BRANCH(MDLexicalBlockBase)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(MDLexicalBlockBase)
-HANDLE_MDNODE_LEAF(MDLexicalBlock)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDLexicalBlock)
-HANDLE_MDNODE_LEAF(MDLexicalBlockFile)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDLexicalBlockFile)
-HANDLE_MDNODE_LEAF(MDNamespace)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDNamespace)
-HANDLE_MDNODE_BRANCH(MDTemplateParameter)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(MDTemplateParameter)
-HANDLE_MDNODE_LEAF(MDTemplateTypeParameter)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDTemplateTypeParameter)
-HANDLE_MDNODE_LEAF(MDTemplateValueParameter)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDTemplateValueParameter)
-HANDLE_MDNODE_BRANCH(MDVariable)
+HANDLE_SPECIALIZED_MDNODE_BRANCH(MDVariable)
-HANDLE_MDNODE_LEAF(MDGlobalVariable)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDGlobalVariable)
-HANDLE_MDNODE_LEAF(MDLocalVariable)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDLocalVariable)
-HANDLE_MDNODE_LEAF(MDExpression)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDExpression)
-HANDLE_MDNODE_LEAF(MDObjCProperty)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDObjCProperty)
-HANDLE_MDNODE_LEAF(MDImportedEntity)
+HANDLE_SPECIALIZED_MDNODE_LEAF(MDImportedEntity)
 
 #undef HANDLE_METADATA
 #undef HANDLE_METADATA_LEAF
 #undef HANDLE_METADATA_BRANCH
 #undef HANDLE_MDNODE_LEAF
 #undef HANDLE_MDNODE_BRANCH
+#undef HANDLE_SPECIALIZED_MDNODE_LEAF
+#undef HANDLE_SPECIALIZED_MDNODE_BRANCH

lib/AsmParser/LLParser.cpp

@@ -3083,13 +3083,11 @@ bool LLParser::ParseMDField(StringRef Name, FieldTy &Result) {
 
 bool LLParser::ParseSpecializedMDNode(MDNode *&N, bool IsDistinct) {
   assert(Lex.getKind() == lltok::MetadataVar && "Expected metadata type name");
-#define DISPATCH_TO_PARSER(CLASS)                                              \
+
+#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS)                                  \
   if (Lex.getStrVal() == #CLASS)                                               \
     return Parse##CLASS(N, IsDistinct);
-
+#include "llvm/IR/Metadata.def"
-  DISPATCH_TO_PARSER(MDLocation);
-  DISPATCH_TO_PARSER(GenericDebugNode);
-#undef DISPATCH_TO_PARSER
 
   return TokError("expected metadata type");
 }
@@ -3146,6 +3144,64 @@ bool LLParser::ParseGenericDebugNode(MDNode *&Result, bool IsDistinct) {
                            (Context, tag.Val, header.Val, operands.Val));
   return false;
 }
+
+bool LLParser::ParseMDSubrange(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDEnumerator(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDBasicType(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDDerivedType(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDCompositeType(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDSubroutineType(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDFile(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDCompileUnit(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDSubprogram(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDLexicalBlock(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDLexicalBlockFile(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDNamespace(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDTemplateTypeParameter(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDTemplateValueParameter(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDGlobalVariable(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDLocalVariable(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDExpression(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDObjCProperty(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
+bool LLParser::ParseMDImportedEntity(MDNode *&Result, bool IsDistinct) {
+  return TokError("unimplemented parser");
+}
 #undef PARSE_MD_FIELD
 #undef NOP_FIELD
 #undef REQUIRE_FIELD

lib/AsmParser/LLParser.h

@@ -401,8 +401,10 @@ namespace llvm {
     template <class ParserTy>
     bool ParseMDFieldsImpl(ParserTy parseField, LocTy &ClosingLoc);
     bool ParseSpecializedMDNode(MDNode *&N, bool IsDistinct = false);
-    bool ParseMDLocation(MDNode *&Result, bool IsDistinct);
+
-    bool ParseGenericDebugNode(MDNode *&Result, bool IsDistinct);
+#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS)                                  \
+  bool Parse##CLASS(MDNode *&Result, bool IsDistinct);
+#include "llvm/IR/Metadata.def"
 
     // Function Parsing.
     struct ArgInfo {