[LLVMdev] using -debug-ir to map identify IR mapping

[David Blaikie]

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
>
>
>
>
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