Yes, I am using opt and llc from the same version (3.5). I know that there were issues with debug-ir in 3.4. I have explored the source tree myself for 3.5 and I know that the pass -debug-ir does kick in with opt. But I have no clue of what happens with the debug information in (and after) the llc pass. /Muneeb On 15 Oct 2014, at 17:14, David Blaikie <dblaikie at gmail.com> wrote:> > > On Wed, Oct 15, 2014 at 7:08 AM, Muneeb Khan <muneeb.khan at it.uu.se> wrote: > Hi, > I am using the -debug-ir pass in LLVM-3.5 opt tool to map binary information back to the IR instead of the source files. > I use the opt tool to generate a .ll file. But when I run the llc tool on it to generate an assembly (or object) file, it gives me the following warning > > warning: ignoring debug info with an invalid version (0) in > > Are you using opt and llc from the same LLVM version? (mixing and matching could produce this problem) > > Or possibly debug-ir was never updated to produce the dubug info version - Adrian? > > > How can I use the debug-ir functionality to achieve a mapping from the binary to the IR? > Thanks! > > Muneeb Khan > PhD student > Department of Information Technology, > Uppsala University, > Sweden > Tel: +46 18 - 471 1049 > > > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > >Muneeb Khan PhD student Department of Information Technology, Uppsala University, Sweden Tel: +46 18 - 471 1049 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20141015/16a7ee84/attachment.html>
I have no experience with debug-ir, but is it possible that the debug-ir pass
never sets the debug info version? There should be a named metadata node
!llvm.module.flags = !{..., !123}
!123 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
in the .ll output. If it is missing, just have a look at the clang sources for
an example how to add a module flag.
-- adrian
> On Oct 15, 2014, at 8:20 AM, Muneeb Khan <muneeb.khan at it.uu.se>
wrote:
>
> Yes, I am using opt and llc from the same version (3.5).
> I know that there were issues with debug-ir in 3.4. I have explored the
source tree myself for 3.5 and I know that the pass -debug-ir does kick in with
opt.
> But I have no clue of what happens with the debug information in (and
after) the llc pass.
>
> /Muneeb
>
> On 15 Oct 2014, at 17:14, David Blaikie <dblaikie at gmail.com
<mailto:dblaikie at gmail.com>> wrote:
>
>>
>>
>> On Wed, Oct 15, 2014 at 7:08 AM, Muneeb Khan <muneeb.khan at
it.uu.se <mailto:muneeb.khan at it.uu.se>> wrote:
>> Hi,
>> I am using the -debug-ir pass in LLVM-3.5 opt tool to map binary
information back to the IR instead of the source files.
>> I use the opt tool to generate a .ll file. But when I run the llc tool
on it to generate an assembly (or object) file, it gives me the following
warning
>>
>> warning: ignoring debug info with an invalid version (0) in
>>
>> Are you using opt and llc from the same LLVM version? (mixing and
matching could produce this problem)
>>
>> Or possibly debug-ir was never updated to produce the dubug info
version - Adrian?
>>
>>
>> How can I use the debug-ir functionality to achieve a mapping from the
binary to the IR?
>> Thanks!
>>
>> Muneeb Khan
>> PhD student
>> Department of Information Technology,
>> Uppsala University,
>> Sweden
>> Tel: +46 18 - 471 1049 <tel:%2B46%2018%20-%20471%201049>
>>
>>
>>
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> LLVMdev at cs.uiuc.edu <mailto:LLVMdev at cs.uiuc.edu>
http://llvm.cs.uiuc.edu <http://llvm.cs.uiuc.edu/>
>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
<http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev>
>>
>>
>
>
> Muneeb Khan
> PhD student
> Department of Information Technology,
> Uppsala University,
> Sweden
> Tel: +46 18 - 471 1049
>
>
>
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On Wed, Oct 15, 2014 at 9:04 AM, Adrian Prantl <aprantl at apple.com> wrote:> I have no experience with debug-ir, but is it possible that the debug-ir > pass never sets the debug info version? There should be a named metadata > node > !llvm.module.flags = !{..., !123} > !123 = metadata !{i32 1, metadata !"Debug Info Version", i32 2} > in the .ll output. If it is missing, just have a look at the clang sources > for an example how to add a module flag. >Perhaps this should be built into DIBuilder, but I'm not sure. Yeah, looking at how it's implemented, this isn't ideal - we've got the string "Debug Info Version" written in Clang and in LLVM, not using a shared constant or common utility functions owned in the same place. This should probably be part of DIBuilder in some way or another so that clients don't have to duplicate this string, etc. - David> > -- adrian > > > On Oct 15, 2014, at 8:20 AM, Muneeb Khan <muneeb.khan at it.uu.se> wrote: > > Yes, I am using opt and llc from the same version (3.5). > I know that there were issues with debug-ir in 3.4. I have explored the > source tree myself for 3.5 and I know that the pass -debug-ir does kick in > with opt. > But I have no clue of what happens with the debug information in (and > after) the llc pass. > > /Muneeb > > On 15 Oct 2014, at 17:14, David Blaikie <dblaikie at gmail.com> wrote: > > > > On Wed, Oct 15, 2014 at 7:08 AM, Muneeb Khan <muneeb.khan at it.uu.se> wrote: > >> Hi, >> I am using the -debug-ir pass in LLVM-3.5 opt tool to map binary >> information back to the IR instead of the source files. >> I use the opt tool to generate a .ll file. But when I run the llc tool >> on it to generate an assembly (or object) file, it gives me the following >> warning >> >> warning: ignoring debug info with an invalid version (0) in >> > > Are you using opt and llc from the same LLVM version? (mixing and matching > could produce this problem) > > Or possibly debug-ir was never updated to produce the dubug info version - > Adrian? > > >> >> How can I use the debug-ir functionality to achieve a mapping from the >> binary to the IR? >> Thanks! >> >> Muneeb Khan >> PhD student >> Department of Information Technology, >> Uppsala University, >> Sweden >> Tel: +46 18 - 471 1049 >> >> >> >> >> _______________________________________________ >> LLVM Developers mailing list >> LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >> >> > > > Muneeb Khan > PhD student > Department of Information Technology, > Uppsala University, > Sweden > Tel: +46 18 - 471 1049 > > > > >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20141015/3914fca7/attachment.html>