TableGen: Remove the ResolveFirst mechanism

Summary:
It is no longer used.

Change-Id: I1e47267d1975d43ad43acd6347f54e958e3b6c86

Reviewers: arsenm, craig.topper, tra, MartinO

Subscribers: wdng, llvm-commits

Differential Revision: https://reviews.llvm.org/D43757

llvm-svn: 326789

diff --git a/llvm/include/llvm/TableGen/Record.h b/llvm/include/llvm/TableGen/Record.h
index 8fed06b..ec8d2fc 100644 (file)
--- a/llvm/include/llvm/TableGen/Record.h
+++ b/llvm/include/llvm/TableGen/Record.h
@@ -1288,18 +1288,6 @@ class Record {
 
   bool IsAnonymous;
 
-  // Class-instance values can be used by other defs.  For example, Struct<i>
-  // is used here as a template argument to another class:
-  //
-  //   multiclass MultiClass<int i> {
-  //     def Def : Class<Struct<i>>;
-  //
-  // These need to get fully resolved before instantiating any other
-  // definitions that use them (e.g. Def).  However, inside a multiclass they
-  // can't be immediately resolved so we mark them ResolveFirst to fully
-  // resolve them later as soon as the multiclass is instantiated.
-  bool ResolveFirst = false;
-
   void init();
   void checkName();
 
@@ -1323,7 +1311,7 @@ public:
     Name(O.Name), Locs(O.Locs), TemplateArgs(O.TemplateArgs),
     Values(O.Values), SuperClasses(O.SuperClasses),
     TrackedRecords(O.TrackedRecords), ID(LastID++),
-    IsAnonymous(O.IsAnonymous), ResolveFirst(O.ResolveFirst) { }
+    IsAnonymous(O.IsAnonymous) { }
 
   static unsigned getNewUID() { return LastID++; }
 
@@ -1461,14 +1449,6 @@ public:
     return IsAnonymous;
   }
 
-  bool isResolveFirst() const {
-    return ResolveFirst;
-  }
-
-  void setResolveFirst(bool b) {
-    ResolveFirst = b;
-  }
-
   void print(raw_ostream &OS) const;
   void dump() const;
 

diff --git a/llvm/lib/TableGen/TGParser.cpp b/llvm/lib/TableGen/TGParser.cpp
index 654b4fd..31b2c00 100644 (file)
--- a/llvm/lib/TableGen/TGParser.cpp
+++ b/llvm/lib/TableGen/TGParser.cpp
@@ -2722,12 +2722,6 @@ bool TGParser::ParseDefm(MultiClass *CurMultiClass) {
       if (ResolveMulticlassDef(*MC, CurRec, DefProto.get(), DefmLoc))
         return Error(SubClassLoc, "could not instantiate def");
 
-      // Defs that can be used by other definitions should be fully resolved
-      // before any use.
-      if (DefProto->isResolveFirst() && !CurMultiClass) {
-        CurRec->resolveReferences();
-        CurRec->setResolveFirst(false);
-      }
       NewRecDefs.push_back(CurRec);
     }