示例#1
0
/// ReplaceInstWithValue - Replace all uses of an instruction (specified by BI)
/// with a value, then remove and delete the original instruction.
///
void llvm::ReplaceInstWithValue(BasicBlock::InstListType &BIL,
                                BasicBlock::iterator &BI, Value *V) {
  Instruction &I = *BI;
  // Replaces all of the uses of the instruction with uses of the value
  I.replaceAllUsesWith(V);

  // Make sure to propagate a name if there is one already.
  if (I.hasName() && !V->hasName())
    V->takeName(&I);

  // Delete the unnecessary instruction now...
  BI = BIL.erase(BI);
}
// ReplaceInstWithValue - Replace all uses of an instruction (specified by BI)
// with a value, then remove and delete the original instruction.
//
void llvm::ReplaceInstWithValue(BasicBlock::InstListType &BIL,
                                BasicBlock::iterator &BI, Value *V) {
  Instruction &I = *BI;
  // Replaces all of the uses of the instruction with uses of the value
  I.replaceAllUsesWith(V);

  std::string OldName = I.getName();
  
  // Delete the unnecessary instruction now...
  BI = BIL.erase(BI);

  // Make sure to propagate a name if there is one already...
  if (OldName.size() && !V->hasName())
    V->setName(OldName, &BIL.getParent()->getSymbolTable());
}