[llvm] r239021 - [TableGen] Merge single prefix bit in RecordVal into PointerIntPair with Name to reduce memory usage.

[Craig Topper]

Author: ctopper
Date: Thu Jun  4 02:40:12 2015
New Revision: 239021

URL: http://llvm.org/viewvc/llvm-project?rev=239021&view=rev
Log:
[TableGen] Merge single prefix bit in RecordVal into PointerIntPair with Name to reduce memory usage.

Modified:
    llvm/trunk/include/llvm/TableGen/Record.h
    llvm/trunk/lib/TableGen/Record.cpp

Modified: llvm/trunk/include/llvm/TableGen/Record.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/TableGen/Record.h?rev=239021&r1=239020&r2=239021&view=diff
==============================================================================
--- llvm/trunk/include/llvm/TableGen/Record.h (original)
+++ llvm/trunk/include/llvm/TableGen/Record.h Thu Jun  4 02:40:12 2015
@@ -1113,22 +1113,21 @@ public:
 //===----------------------------------------------------------------------===//
 
 class RecordVal {
-  Init *Name;
+  PointerIntPair<Init *, 1, bool> NameAndPrefix;
   RecTy *Ty;
-  unsigned Prefix;
   Init *Value;
 
 public:
-  RecordVal(Init *N, RecTy *T, unsigned P);
-  RecordVal(const std::string &N, RecTy *T, unsigned P);
+  RecordVal(Init *N, RecTy *T, bool P);
+  RecordVal(const std::string &N, RecTy *T, bool P);
 
   const std::string &getName() const;
-  const Init *getNameInit() const { return Name; }
+  const Init *getNameInit() const { return NameAndPrefix.getPointer(); }
   std::string getNameInitAsString() const {
     return getNameInit()->getAsUnquotedString();
   }
 
-  unsigned getPrefix() const { return Prefix; }
+  bool getPrefix() const { return NameAndPrefix.getInt(); }
   RecTy *getType() const { return Ty; }
   Init *getValue() const { return Value; }
 

Modified: llvm/trunk/lib/TableGen/Record.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/TableGen/Record.cpp?rev=239021&r1=239020&r2=239021&view=diff
==============================================================================
--- llvm/trunk/lib/TableGen/Record.cpp (original)
+++ llvm/trunk/lib/TableGen/Record.cpp Thu Jun  4 02:40:12 2015
@@ -1532,20 +1532,20 @@ std::string DagInit::getAsString() const
 //    Other implementations
 //===----------------------------------------------------------------------===//
 
-RecordVal::RecordVal(Init *N, RecTy *T, unsigned P)
-  : Name(N), Ty(T), Prefix(P) {
+RecordVal::RecordVal(Init *N, RecTy *T, bool P)
+  : NameAndPrefix(N, P), Ty(T) {
   Value = UnsetInit::get()->convertInitializerTo(Ty);
   assert(Value && "Cannot create unset value for current type!");
 }
 
-RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
-  : Name(StringInit::get(N)), Ty(T), Prefix(P) {
+RecordVal::RecordVal(const std::string &N, RecTy *T, bool P)
+  : NameAndPrefix(StringInit::get(N), P), Ty(T) {
   Value = UnsetInit::get()->convertInitializerTo(Ty);
   assert(Value && "Cannot create unset value for current type!");
 }
 
 const std::string &RecordVal::getName() const {
-  return cast<StringInit>(Name)->getValue();
+  return cast<StringInit>(getNameInit())->getValue();
 }
 
 void RecordVal::dump() const { errs() << *this; }