* Rename const_regclass_begin/end to just regclass_begin/end

* Regclass iterators need an extra level of pointerness to work right
* Pull inverse mapping code out of target description files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5046 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/Target/MRegisterInfo.h b/include/llvm/Target/MRegisterInfo.h
index 577d59c93aad63df34b64f3826bfd0346f75f98c..b7613c4d0da3e92efbd43674179142af39f1f96c 100644 (file)
--- a/include/llvm/Target/MRegisterInfo.h
+++ b/include/llvm/Target/MRegisterInfo.h
@@ -10,7 +10,6 @@
 #define LLVM_TARGET_MREGISTERINFO_H
 
 #include "llvm/CodeGen/MachineBasicBlock.h"
-#include <map>
 #include <assert.h>
 
 class Type;
@@ -61,15 +60,6 @@ public:
 
   virtual unsigned getDataSize() const { return 0; }
 
-  void
-  buildReg2RegClassMap(std::map<unsigned,const TargetRegisterClass*>&
-                       Reg2RegClassMap) const
-  {
-    for (unsigned i=0; i < getNumRegs(); ++i) {
-      Reg2RegClassMap[getRegister(i)] = this;
-    }
-  }
-
   //const std::vector<unsigned> &getRegsInClass(void) { return Regs; }
   //void getAliases(void);
 };
@@ -156,23 +146,13 @@ public:
   virtual unsigned getStackPointer() const = 0;
 
   /// Register class iterators
-  typedef const TargetRegisterClass* const_iterator;
+  typedef const TargetRegisterClass** const_iterator;
 
-  virtual const_iterator const_regclass_begin() const = 0;
-  virtual const_iterator const_regclass_end() const = 0;
+  virtual const_iterator regclass_begin() const = 0;
+  virtual const_iterator regclass_end() const = 0;
 
   virtual unsigned getNumRegClasses() const = 0;
   virtual const TargetRegisterClass* getRegClassForType(const Type* Ty) const=0;
-
-  virtual void
-  buildReg2RegClassMap(std::map<unsigned,const TargetRegisterClass*>&
-                       Reg2RegClassMap) const {
-    for (MRegisterInfo::const_iterator I = const_regclass_begin(),
-           E = const_regclass_end(); I != E; ++I) {
-      I->buildReg2RegClassMap(Reg2RegClassMap);
-    }
-  }
-
 };
 
 #endif