[LLVMdev] LLVM 2.0 and integer signedness

Alberto González a.gonzalezsanchez at student.tudelft.nl
Tue Jun 26 09:05:00 PDT 2007


The problem is that what i'm instrumenting is loads and stores, plus  
function call arguments and return values, which have no signedness  
information.

El 26/06/2007, a las 17:03, Anton Korobeynikov escribió:

> Hello, Alberto.
>
>> I'm using llvm for instrumenting code, and I need to know if  
>> there's a way to
>> difference between signed and unsigned Values of integer type  
>> during an
>> optimization pass.
> Types are signless in LLVM 2, operations are not. So, you should
> probably inspect insts itself, not their operands.
>
> -- 
> With best regards, Anton Korobeynikov.
>
> Faculty of Mathematics & Mechanics, Saint Petersburg State University.
>
>
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