[LLVMdev] GetElementPtr

[Ryan Taylor]

So basically, is it possible to initialize the SelectionDAG and extract the
lowering of getelementptr from it within a pass?

On Thu, Dec 8, 2011 at 11:00 AM, Ryan Taylor <ryta1203 at gmail.com> wrote:

> Do you think I could use the SelectionDAGBuilder in a pass to accomplish
> this for me? if there is already code that does this I don't really think I
> should have to do this again, unless it's not possible to access that code
> from the stage where I want to use it?
>
>
> On Thu, Dec 8, 2011 at 12:56 AM, Pedro Ferreira <pedro.ferreira at imgtec.com
> > wrote:
>
>>  I was unaware of its removal. I am still using 2.8. I grep'd the source
>> tree for that pass and found it on the header I mentioned; it led me to
>> believe the pass was still there.
>>
>> The transformation itself isn't complicated; doing it manually should be
>> simple.
>>
>>
>> On 07/12/11 21:50, Ryan Taylor wrote:
>>
>> There is a GEPSplitterPass in the Scalar.h but not in the
>> LLVM_SRC/lib/Transforms/Scalar folder, there is no GEPSplitterPass.cpp
>> file. Is it possible to get this from 2.8 and compile it and use it for 2.9?
>>
>>  On Wed, Dec 7, 2011 at 12:31 PM, Ryan Taylor <ryta1203 at gmail.com> wrote:
>>
>>> Looking at the release notes for 2.9, it appears that GEPSplitterPass
>>> has been removed from 2.9. Is this the case, can I access it anyways or no?
>>>
>>> Due to all the changes between versions of LLVM, it's not timely to
>>> switch to any other version of LLVM, since the code modifications would be
>>> too many. Any other ideas?
>>>
>>>
>>> On Wed, Dec 7, 2011 at 12:14 PM, Ryan Taylor <ryta1203 at gmail.com> wrote:
>>>
>>>> Yes, exactly along these lines, how do I use this pass? It's not
>>>> documented in the Transforms section of llvm.org
>>>>
>>>>
>>>>  On Wed, Dec 7, 2011 at 6:06 AM, Pedro Ferreira <
>>>> pedro.ferreira at imgtec.com> wrote:
>>>>
>>>>>  You mean, something along the lines of the GEPSplitterPass?
>>>>>
>>>>> // GEPSplitter - Split complex GEPs into simple ones
>>>>>
>>>>> in
>>>>>
>>>>> ./include/llvm/Transforms/Scalar.h
>>>>>
>>>>>
>>>>> On 06/12/11 20:53, Ryan Taylor wrote:
>>>>>
>>>>>  Does a transform exist to breakdown the GEP?
>>>>>
>>>>>
>>>>>  _______________________________________________
>>>>> LLVM Developers mailing listLLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.eduhttp://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>
>>
>
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