[LLVMdev] More Back-End Porting Troubles

[Cameron McInally]

On Wed, Aug 15, 2012 at 12:11 PM, Fabian Scheler <fabian.scheler at gmail.com>
wrote:

> Hi LLVM-Folks,
>
 ...

> Currently, I am not even able to find out which instruction is messed
> up here  (dumping the node via the dump-Method yields "<<Unknown
> Machine Node #65434>>"). Can I use "machine nodes" and "normal nodes"
> when lowering a specific instruction within the TargetLowering?


Usually, when I see this type of error in the X86 target, I use the
following function to narrow down the search:

>    /// getTargetNodeName - This method returns the name of a target
specific
>    /// DAG node.
>    virtual const char *getTargetNodeName(unsigned Opcode) const;

If I'm not mistaken, the normal dump method returns names for ISD Opcodes
and not for target specific opcodes, in my case X86ISD Opcodes.
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