[hellogcc] Re: [hellogcc] Re: Re: Re: [投稿] LLVM Introduction - How to use JIT 2/3
- From: Liu <proljc@xxxxxxxxx>
- To: hellogcc@xxxxxxxxxxxxx
- Date: Sat, 22 Oct 2011 23:21:56 +0800
On Sat, Oct 22, 2011 at 11:11 PM, ???f任 <chenwj@xxxxxxxxxxxxxx> wrote:
>> 恩，确实是可以这么写。
>> 对应高级语言，module是对应C++的class的吧，其实是class的子集，是这样么？一个class有多个func，生成一个含有多个func的module。这个我也没有搞的十分明白。
>
> Module 在 LLVM 中是???F成一?? C++ class，你可以看 include/llvm/Module.h
> 和 lib/VMCore/Module.cpp。
>
> 我不懂你?f的 class 的子集是什?N意思。但是你可以看到底下我????出?淼拇??a，
> ?? Module ??????比?^有清晰的概念。
>
> --------------------- include/llvm/Module.h ---------------------------
> class Module {
> public:
> typedef iplist<GlobalVariable> GlobalListType;
> typedef iplist<Function> FunctionListType;
> typedef iplist<GlobalAlias> AliasListType;
>
> Constant *getOrInsertFunction(StringRef Name, const FunctionType *T,
> AttrListPtr AttributeList);
>
> Constant *getOrInsertFunction(StringRef Name, const FunctionType *T);
>
> private:
> FunctionListType FunctionList; ///< The Functions in the module
> -----------------------------------------------------------------------
>
对，就是这样，类似C++的class。
C++还有隐式构造函数等等，llvm里面都是显式的。对C++的处理确实很难。
> --------------------- lib/VMCore/Module.cpp ---------------------------
> Constant *Module::getOrInsertFunction(StringRef Name,
> const FunctionType *Ty,
> AttrListPtr AttributeList) {
> // See if we have a definition for the specified function already.
> GlobalValue *F = getNamedValue(Name);
> if (F == 0) {
> // Nope, add it
> Function *New = Function::Create(Ty, GlobalVariable::ExternalLinkage,
> Name);
> if (!New->isIntrinsic()) // Intrinsics get attrs set on construction
> New->setAttributes(AttributeList);
> FunctionList.push_back(New);
> return New; // Return the new prototype.
> }
>
> ...
>
> }
>
> Constant *Module::getOrInsertFunction(StringRef Name,
> const FunctionType *Ty) {
> AttrListPtr AttributeList = AttrListPtr::get((AttributeWithIndex *)0, 0);
> return getOrInsertFunction(Name, Ty, AttributeList);
> }
> -----------------------------------------------------------------------
>
> --
> Wei-Ren Chen (???f任)
> Computer Systems Lab, Institute of Information Science,
> Academia Sinica, Taiwan (R.O.C.)
> Tel:886-2-2788-3799 #1667
>
>
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