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C++ VariableExprAST::getName方法代码示例

本文整理汇总了C++中VariableExprAST::getName方法的典型用法代码示例。如果您正苦于以下问题:C++ VariableExprAST::getName方法的具体用法?C++ VariableExprAST::getName怎么用?C++ VariableExprAST::getName使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在VariableExprAST的用法示例。


在下文中一共展示了VariableExprAST::getName方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: ErrorV

Value *BinaryExprAST::Codegen() {
  KSDbgInfo.emitLocation(this);

  // Special case '=' because we don't want to emit the LHS as an expression.
  if (Op == '=') {
    // Assignment requires the LHS to be an identifier.
    // This assume we're building without RTTI because LLVM builds that way by
    // default.  If you build LLVM with RTTI this can be changed to a
    // dynamic_cast for automatic error checking.
    VariableExprAST *LHSE = static_cast<VariableExprAST *>(LHS);
    if (!LHSE)
      return ErrorV("destination of '=' must be a variable");
    // Codegen the RHS.
    Value *Val = RHS->Codegen();
    if (Val == 0)
      return 0;

    // Look up the name.
    Value *Variable = NamedValues[LHSE->getName()];
    if (Variable == 0)
      return ErrorV("Unknown variable name");

    Builder.CreateStore(Val, Variable);
    return Val;
  }

  Value *L = LHS->Codegen();
  Value *R = RHS->Codegen();
  if (L == 0 || R == 0)
    return 0;

  switch (Op) {
  case '+':
    return Builder.CreateFAdd(L, R, "addtmp");
  case '-':
    return Builder.CreateFSub(L, R, "subtmp");
  case '*':
    return Builder.CreateFMul(L, R, "multmp");
  case '<':
    L = Builder.CreateFCmpULT(L, R, "cmptmp");
    // Convert bool 0/1 to double 0.0 or 1.0
    return Builder.CreateUIToFP(L, Type::getDoubleTy(getGlobalContext()),
                                "booltmp");
  default:
    break;
  }

  // If it wasn't a builtin binary operator, it must be a user defined one. Emit
  // a call to it.
  Function *F = TheModule->getFunction(std::string("binary") + Op);
  assert(F && "binary operator not found!");

  Value *Ops[] = { L, R };
  return Builder.CreateCall(F, Ops, "binop");
}
开发者ID:0x00evil,项目名称:llvm,代码行数:55,代码来源:toy.cpp

示例2: ErrorV

Value *BinaryExprAST::Codegen() {
  // Special case '=' because we don't want to emit the LHS as an expression.
  if (Op == '=') {
    // Assignment requires the LHS to be an identifier.
    VariableExprAST *LHSE = static_cast<VariableExprAST*>(LHS);
    if (!LHSE)
      return ErrorV("destination of '=' must be a variable");
    // Codegen the RHS.
    Value *Val = RHS->Codegen();
    if (Val == 0) return 0;

    // Look up the name.
    Value *Variable = NamedValues[LHSE->getName()];
    if (Variable == 0) return ErrorV("Unknown variable name");

    Builder.CreateStore(Val, Variable);
    return Val;
  }

  Value *L = LHS->Codegen();
  Value *R = RHS->Codegen();
  if (L == 0 || R == 0) return 0;

  switch (Op) {
  case '+': return Builder.CreateFAdd(L, R, "addtmp");
  case '-': return Builder.CreateFSub(L, R, "subtmp");
  case '*': return Builder.CreateFMul(L, R, "multmp");
  case '/': return Builder.CreateFDiv(L, R, "divtmp");
  case '<':
    L = Builder.CreateFCmpULT(L, R, "cmptmp");
    // Convert bool 0/1 to double 0.0 or 1.0
    return Builder.CreateUIToFP(L, Type::getDoubleTy(getGlobalContext()),
                                "booltmp");
  default: break;
  }

  // If it wasn't a builtin binary operator, it must be a user defined one. Emit
  // a call to it.
  Function *F = TheHelper->getFunction(MakeLegalFunctionName(std::string("binary")+Op));
  assert(F && "binary operator not found!");

  Value *Ops[] = { L, R };
  return Builder.CreateCall(F, Ops, "binop");
}
开发者ID:0x00evil,项目名称:llvm,代码行数:44,代码来源:toy.cpp

示例3: ErrorV

Value *BinaryExprAST::Codegen() {
  KSDbgInfo.emitLocation(this);

  if (Op == '=') {
    VariableExprAST *LHSE = dynamic_cast<VariableExprAST *>(LHS);
    if (!LHSE)
      return ErrorV("destination of '=' must be a variable");

    Value *Val = RHS->Codegen();
    if (!Val) return 0;

    Value *Variable = NamedValues[LHSE->getName()];
    if (!Variable) return 0;

    Builder.CreateStore(Val, Variable);
    return Val;
  }

  Value *L = LHS->Codegen();
  Value *R = RHS->Codegen();
  if (L == 0 || R == 0) return 0;

  switch (Op) {
  case '+': return Builder.CreateFAdd(L, R, "addtmp");
  case '-': return Builder.CreateFSub(L, R, "subtmp");
  case '*': return Builder.CreateFMul(L, R, "multmp");
  case '<':
    L = Builder.CreateFCmpULT(L, R, "cmptmp");
    return Builder.CreateUIToFP(L, Type::getDoubleTy(getGlobalContext()), "booltmp");

  default: break;
  }

  // user defined operators
  Function *F = TheModule->getFunction(std::string("binary")+Op);
  assert(F && "binary operator not found!");

  Value *Ops[2] = { L, R };
  return Builder.CreateCall(F, Ops, "binop");
}
开发者ID:tctony,项目名称:llvm-tutorial,代码行数:40,代码来源:toy.cpp


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