llvm dev - Oct 2012 - [LLVMdev] Unable to build PBQP/Graph.h with libc++

This is a known issue with the current PBQP data structures. I'm working on
an overhaul of the PBQP allocator at the moment which should address this.

- Lang.

On Sat, Oct 20, 2012 at 2:08 PM, Benjamin Kramer <benny.kra at
gmail.com>wrote:
>
> On 20.10.2012, at 22:47, Jordan Rose <jordan_rose at apple.com>
wrote:
>
> > Hi, everyone. Today I was trying to build LLVM with libc++ and C++11
> enabled, and I ran into this:
> >
> >
>
http://stackoverflow.com/questions/10065384/instantiation-of-a-list-with-an-incomplete-type-in-a-typedef
> >
> > Basically, PBQP/Graph.h forward-declares classes, then tries to get
> iterators for std::lists of those classes. This is technically undefined
> behavior. I tried fudging with the order of declarations for a while, but
> gave up after realizing there's not an easy way out.
> >
> > Is anyone else building LLVMCodeGen with libc++ and C++11? Is anyone
> else seeing this?
>
> I was hitting this problem a while ago, but it's not reproducible when
> compiling llvm with clang trunk and libc++ trunk.
>
> - Ben
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
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I think I've fixed this issue with r166484. Let me know if you run into
further problems building PBQP with libc++ and C++11.

- Lang.

On Sat, Oct 20, 2012 at 2:59 PM, Lang Hames <lhames at gmail.com> wrote:
> This is a known issue with the current PBQP data structures. I'm
working
> on an overhaul of the PBQP allocator at the moment which should address
> this.
>
> - Lang.
>
>
> On Sat, Oct 20, 2012 at 2:08 PM, Benjamin Kramer <benny.kra at
gmail.com>wrote:
>
>>
>> On 20.10.2012, at 22:47, Jordan Rose <jordan_rose at apple.com>
wrote:
>>
>> > Hi, everyone. Today I was trying to build LLVM with libc++ and
C++11
>> enabled, and I ran into this:
>> >
>> >
>>
http://stackoverflow.com/questions/10065384/instantiation-of-a-list-with-an-incomplete-type-in-a-typedef
>> >
>> > Basically, PBQP/Graph.h forward-declares classes, then tries to
get
>> iterators for std::lists of those classes. This is technically
undefined
>> behavior. I tried fudging with the order of declarations for a while,
but
>> gave up after realizing there's not an easy way out.
>> >
>> > Is anyone else building LLVMCodeGen with libc++ and C++11? Is
anyone
>> else seeing this?
>>
>> I was hitting this problem a while ago, but it's not reproducible
when
>> compiling llvm with clang trunk and libc++ trunk.
>>
>> - Ben
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>
>
>
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Seems to be working. Thanks, Lang!


On Oct 23, 2012, at 10:15 , Lang Hames <lhames at gmail.com> wrote:
> I think I've fixed this issue with r166484. Let me know if you run into
further problems building PBQP with libc++ and C++11.
> 
> - Lang.
> 
> On Sat, Oct 20, 2012 at 2:59 PM, Lang Hames <lhames at gmail.com>
wrote:
> This is a known issue with the current PBQP data structures. I'm
working on an overhaul of the PBQP allocator at the moment which should address
this.
> - Lang.
> 
> 
> On Sat, Oct 20, 2012 at 2:08 PM, Benjamin Kramer <benny.kra at
gmail.com> wrote:
> 
> On 20.10.2012, at 22:47, Jordan Rose <jordan_rose at apple.com>
wrote:
> 
> > Hi, everyone. Today I was trying to build LLVM with libc++ and C++11
enabled, and I ran into this:
> >
> >
http://stackoverflow.com/questions/10065384/instantiation-of-a-list-with-an-incomplete-type-in-a-typedef
> >
> > Basically, PBQP/Graph.h forward-declares classes, then tries to get
iterators for std::lists of those classes. This is technically undefined
behavior. I tried fudging with the order of declarations for a while, but gave
up after realizing there's not an easy way out.
> >
> > Is anyone else building LLVMCodeGen with libc++ and C++11? Is anyone
else seeing this?
> 
> I was hitting this problem a while ago, but it's not reproducible when
compiling llvm with clang trunk and libc++ trunk.
> 
> - Ben
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> 
> 
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