[LLVMdev] inserting a fucntion call at the end of basic bloc

Duncan Sands baldrick at free.fr
Tue Apr 26 05:08:02 PDT 2011

Hi Nabila,

>         Now when i tried this pass an error says:
>         Wrong type for attribute noalias
>         tail call void @consume(i32 noalias 3, i32* @y) nounwind
>     noalias is only for arguments of pointer type.  You probably meant it to
>     be on the second argument rather than the first.  I suggest you correct
>     your code that adds the attribute.
>     Ciao, Duncan.
> no my fucntion is
> void consume(int nb_into_bloc, int *nb_total)
> the second is a pointer
> here is how I pass the parameters
>   Instruction* ii = i->getTerminator();
>   const int n = cast <int> (i->size());
>   ConstantInt* inValue = ConstantInt::get(Type::getInt32Ty(Context), n);
>   std::vector<Value*> int32_16_params;
>   int32_16_params.push_back(inValue);
>   int32_16_params.push_back(gvar_int32_y);
>   CallInst* int32_16 = CallInst::Create(func_consume, int32_16_params.begin(),
> int32_16_params.end(), "", ii);

where did the "noalias" attribute and "tail call" (rather than "call") come
from?  Are you setting these yourself or running some optimization pass after
your pass?

Ciao, Duncan.

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