Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/lib/IR/SymbolTableListTraitsImpl.h

@@ -1,113 +0,0 @@
-//===-- llvm/SymbolTableListTraitsImpl.h - Implementation ------*- C++ -*--===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the stickier parts of the SymbolTableListTraits class,
-// and is explicitly instantiated where needed to avoid defining all this code
-// in a widely used header.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_LIB_IR_SYMBOLTABLELISTTRAITSIMPL_H
-#define LLVM_LIB_IR_SYMBOLTABLELISTTRAITSIMPL_H
-
-#include "llvm/IR/SymbolTableListTraits.h"
-#include "llvm/IR/ValueSymbolTable.h"
-
-namespace llvm {
-
-/// setSymTabObject - This is called when (f.e.) the parent of a basic block
-/// changes.  This requires us to remove all the instruction symtab entries from
-/// the current function and reinsert them into the new function.
-template <typename ValueSubClass>
-template <typename TPtr>
-void SymbolTableListTraits<ValueSubClass>::setSymTabObject(TPtr *Dest,
-                                                           TPtr Src) {
-  // Get the old symtab and value list before doing the assignment.
-  ValueSymbolTable *OldST = getSymTab(getListOwner());
-
-  // Do it.
-  *Dest = Src;
-  
-  // Get the new SymTab object.
-  ValueSymbolTable *NewST = getSymTab(getListOwner());
-  
-  // If there is nothing to do, quick exit.
-  if (OldST == NewST) return;
-  
-  // Move all the elements from the old symtab to the new one.
-  ListTy &ItemList = getList(getListOwner());
-  if (ItemList.empty()) return;
-  
-  if (OldST) {
-    // Remove all entries from the previous symtab.
-    for (auto I = ItemList.begin(); I != ItemList.end(); ++I)
-      if (I->hasName())
-        OldST->removeValueName(I->getValueName());
-  }
-
-  if (NewST) {
-    // Add all of the items to the new symtab.
-    for (auto I = ItemList.begin(); I != ItemList.end(); ++I)
-      if (I->hasName())
-        NewST->reinsertValue(&*I);
-  }
-  
-}
-
-template <typename ValueSubClass>
-void SymbolTableListTraits<ValueSubClass>::addNodeToList(ValueSubClass *V) {
-  assert(!V->getParent() && "Value already in a container!!");
-  ItemParentClass *Owner = getListOwner();
-  V->setParent(Owner);
-  if (V->hasName())
-    if (ValueSymbolTable *ST = getSymTab(Owner))
-      ST->reinsertValue(V);
-}
-
-template <typename ValueSubClass>
-void SymbolTableListTraits<ValueSubClass>::removeNodeFromList(
-    ValueSubClass *V) {
-  V->setParent(nullptr);
-  if (V->hasName())
-    if (ValueSymbolTable *ST = getSymTab(getListOwner()))
-      ST->removeValueName(V->getValueName());
-}
-
-template <typename ValueSubClass>
-void SymbolTableListTraits<ValueSubClass>::transferNodesFromList(
-    SymbolTableListTraits &L2, iterator first, iterator last) {
-  // We only have to do work here if transferring instructions between BBs
-  ItemParentClass *NewIP = getListOwner(), *OldIP = L2.getListOwner();
-  assert(NewIP != OldIP && "Expected different list owners");
-
-  // We only have to update symbol table entries if we are transferring the
-  // instructions to a different symtab object...
-  ValueSymbolTable *NewST = getSymTab(NewIP);
-  ValueSymbolTable *OldST = getSymTab(OldIP);
-  if (NewST != OldST) {
-    for (; first != last; ++first) {
-      ValueSubClass &V = *first;
-      bool HasName = V.hasName();
-      if (OldST && HasName)
-        OldST->removeValueName(V.getValueName());
-      V.setParent(NewIP);
-      if (NewST && HasName)
-        NewST->reinsertValue(&V);
-    }
-  } else {
-    // Just transferring between blocks in the same function, simply update the
-    // parent fields in the instructions...
-    for (; first != last; ++first)
-      first->setParent(NewIP);
-  }
-}
-
-} // End llvm namespace
-
-#endif