llvm dev - Jun 2012 - [LLVMdev] How to generate a non-fatal error from the backend

There are times that I want to generate an ERROR, but not stop processing of the
code. An example of this would be when I find there is a value out of range for
a specific operand.

producing the error for all instances of this class of errors would be good.

Also, I would like to have the error message have some relationship to the
offending source.

Thanks,

Jack
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On Thu, Jun 21, 2012 at 6:12 PM, Carter, Jack <jcarter at mips.com>
wrote:
> There are times that I want to generate an ERROR, but not stop processing
of
> the code. An example of this would be when I find there is a value out of
> range for a specific operand.
>
> producing the error for all instances of this class of errors would be
good.
>
> Also, I would like to have the error message have some relationship to the
> offending source.
Can you give a bit more context?  The way LLVM handles errors varies a
lot depending on what you're doing.

-Eli

On Thu, Jun 21, 2012 at 9:12 PM, Carter, Jack <jcarter at mips.com> wrote:
>  There are times that I want to generate an ERROR, but not stop
> processing of the code. An example of this would be when I find there is a
> value out of range for a specific operand.
>
> producing the error for all instances of this class of errors would be
> good.
>
> Also, I would like to have the error message have some relationship to the
> offending source.
>
This is something I've been looking into lately.  Currently, you can use
LLVMContext::emitError to send an error message to a registered error
handler (see LLVMContext::setInlineAsmDiagnosticHandler).  The handler can
write the message to a log file, console, etc..

I want to extend this to support error/warning/info messages, and also
associate source information if available.

>
> Thanks,
>
> Jack
>
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>
>

-- 

Thanks,

Justin Holewinski
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