[LLVMdev] Find template types of std::map

Sebastian Dreßler dressler at zib.de
Wed Oct 17 07:45:22 PDT 2012

Eli Friedman-2 wrote
> On Tue, Oct 16, 2012 at 4:17 AM, Sebastian Dreßler <

> dressler@

> > wrote:
>> Hi,
>> for a current project I'm required to get the types of the template
>> arguments key and value for std::map<K,V>. I've noticed that the
>> STL
>> implementation used by Clang defines the type of the map as
>>     %"class.std::map" = type { %"class.std::_Rb_tree" }
> Trying to dig template arguments out of LLVM IR types is a bad idea.
> Try a C++ demangler on a related function name, or the debug
> information.

Thanks for the hint, I'll try that. However, when I successfully determined
the name of the template parameters, I'll have to find the LLVM IR std::pair
definition nevertheless. So, is there any function providing all names of
named structs from a module? When I dump the module, I'm able to see all
those structs, but I didn't find a function for e.g. iterating them.


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