[LLVMdev] Bug In Module::getConstantPointerRef ?

[Chris Lattner]

On Mon, 2 Feb 2004, Reid Spencer wrote:

> >  _Link_type __x = _M_root();  // Current node.
>
> The _M_root() call is de-referencing the _M_header field.
>
> This could, ostensibly, be a bug in std::_Rb_tree template but it could
> also be a usage problem.
>
> Note that the GVRefMap (in Module.cpp) has no constructor and just uses
> the default. Presumably the default constructor of the std::map (member
> Map) is also called but that constructor doesn't do much (i.e. provide a
> value for _M_header).
>
> One other note: this used to work a couple weeks ago. I just did a cvs
> update and rebuilt LLVM.  My code hasn't changed.

Nothing has really changed in this part of the compiler for a long time,
and I don't think we are abusing std::map's here.  Is it possible that
part of your tree is out of sync with the rest of it or something?  Maybe
make clean would help?

-Chris

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