[llvm-dev] Assertion isUniqued() failure

[mats petersson via llvm-dev]

I'm not sure of this particular error, but I have been working on
implementing debug info in my code, and my principle for debugging the
debug info is comprised of:
1. Minimise the code until the problem goes away, then undo the last change.
2. Generate LLVM-IR and inspect manually.
3. Dump the metadata and try to trace it back to the original construct
(and then a lot of thinking to understand why it's not working)

I'm sorry if I'm telling you things you already know...

--
Mats

On 12 January 2016 at 14:06, David Jones via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> I'm upgrading my application to use LLVM 3.7.1 instead of 3.5.1.
>
> On one of my regression tests I am getting an assertion:
>
>  /home2/djones/llvm-3.7.1.src/lib/IR/Metadata.cpp:490: void
> llvm::MDNode::resolve(): Assertion `isUniqued() && "Expected this to be
> uniqued"' failed.
>
> This occurs when finalizing debug info prior to code generation:
>
> #4  0x00007ffff4520455 in llvm::MDNode::resolve() () from
> /tools/llvm/3.7.1dbg/lib/libLLVM-3.7.1.so
> #5  0x00007ffff4520f16 in llvm::MDNode::resolveCycles() () from
> /tools/llvm/3.7.1dbg/lib/libLLVM-3.7.1.so
> #6  0x00007ffff4434654 in llvm::DIBuilder::finalize() () from
> /tools/llvm/3.7.1dbg/lib/libLLVM-3.7.1.so
>
> I am using DIBuilder to generate all debug metadata. What application
> behavior would cause this assertion?
>
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20160112/0534c52e/attachment.html>