c++ - LLVM libc++abi.dylib：纯虚函数调用和意外行为

Question

我正在编写一个应该调用其他函数的主函数，但是我收到了这个错误 libc++abi.dylib: Pure virtual function called!

我将函数调用注入主函数的方式是：

Type * returnType = Type::getInt32Ty(TheContext);
    std::vector<Type *> argTypes(0, Type::getInt32Ty(TheContext));

    FunctionType * functionType = FunctionType::get(returnType, argTypes, false);
    Function * function = Function::Create(functionType, Function::ExternalLinkage, "main", TheModule.get());
    function->getBasicBlockList().clear();
    BasicBlock * BB = BasicBlock::Create(TheContext, "entry", function);

    Builder.SetInsertPoint(BB);
    for (const auto & call : calls) {
        Builder.CreateCall(call.first, call.second, "call");
    }
    Builder.CreateRet(Builder.getInt32(0));
    verifyFunction(*function);

如果我运行这个for循环，我会提到错误但生成的IR似乎很好，除了出于某种原因它调用“calltmp？而不是“调用”你知道我该如何解决这个问题吗？

declare i32 @writeln(i32)

define i32 @a() {
entry:
  ret i32 3
}

ine i32 @__anon_call() {
entry:
  %calltmp = call i32 @a()
  %calltmp1 = call i32 @writeln(i32 %calltmp)
  ret i32 %calltmp1

entry2:                                           ; No predecessors!
  %calltmp3 = call i32 @a()
  %calltmp4 = call i32 @writeln(i32 %calltmp3)
  ret i32 %calltmp4
}

define i32 @main() {
entry:
  %call = call i32 @a()
  %call1 = call i32 @writeln(i32 %calltmp)
  %call2 = call i32 @a()
  %call3 = call i32 @writeln(i32 %calltmp3)
  ret i32 0
}

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