Hello,
I need create a CallInst to this function
define i32 @function(i32 %n, i8 %m){ ... }
I now how get argument's type but I do not know how to create arguments that
meet these types.
For example, if the argument is long, accurate pass CallInst an integer
argument, however, if a Char, Char must pass an argument.
How to get the type of the argument of the function definition and create
the same type to pass the Callinst???
--
*Rafael Parizi*
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On 10/6/11 11:48 AM, Rafael Baldiati Parizi wrote:> Hello, > I need create a CallInst to this function > > define i32 @function(i32 %n, i8 %m){ ... } > > I now how get argument's type but I do not know how to create > arguments that meet these types. > For example, if the argument is long, accurate pass CallInst an > integer argument, however, if a Char, Char must pass an argument. > How to get the type of the argument of the function definition and > create the same type to pass the Callinst???If you want to pass a value to a function that doesn't match the type, you will need to insert a cast instruction to cast the value to the correct type. Which cast instruction you insert will depend on the value's type and the type you want it to be. SAFECode has a utility function castTo() that takes a Value * and a desired Type * and inserts a cast instruction if Value * is not of the desired type. It's designed to minimize the number of cast instructions it inserts so that the resulting LLVM IR is more readable for debugging: http://llvm.org/viewvc/llvm-project/safecode/trunk/include/safecode/Utility.h?view=markup -- John T.> > > -- > */Rafael Parizi/* > > > > > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20111006/539b5c90/attachment.html>
virtual std::vector<Value *> getESetArgumentosFunc(Function *F){
std::vector<Value *> varg_list;
varg_list.clear();
for(Function::arg_iterator arg_iti = F->getArgumentList().begin(), arg_ite
F->getArgumentList().end(); arg_iti != arg_ite; ++arg_iti){
Value *para = ConstantInt::get(IntegerType::get(getGlobalContext(),32), 0);
*Value *val2 = cast<* arg_iti->getType()*>(para);
<--------------------------*
para->setName("test");
varg_list.push_back(para);
}
return varg_list;
}
How can I make this cast??
2011/10/6 John Criswell <criswell at illinois.edu>
> On 10/6/11 11:48 AM, Rafael Baldiati Parizi wrote:
>
> Hello,
> I need create a CallInst to this function
>
> define i32 @function(i32 %n, i8 %m){ ... }
>
> I now how get argument's type but I do not know how to create
arguments
> that meet these types.
> For example, if the argument is long, accurate pass CallInst an integer
> argument, however, if a Char, Char must pass an argument.
> How to get the type of the argument of the function definition and create
> the same type to pass the Callinst???
>
>
> If you want to pass a value to a function that doesn't match the type,
you
> will need to insert a cast instruction to cast the value to the correct
> type. Which cast instruction you insert will depend on the value's
type and
> the type you want it to be.
>
> SAFECode has a utility function castTo() that takes a Value * and a desired
> Type * and inserts a cast instruction if Value * is not of the desired
> type. It's designed to minimize the number of cast instructions it
inserts
> so that the resulting LLVM IR is more readable for debugging:
>
>
>
http://llvm.org/viewvc/llvm-project/safecode/trunk/include/safecode/Utility.h?view=markup
>
> -- John T.
>
>
>
> --
> *Rafael Parizi*
>
>
>
>
>
> _______________________________________________
> LLVM Developers mailing listLLVMdev at cs.uiuc.edu
http://llvm.cs.uiuc.eduhttp://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
>
>
--
*Rafael Parizi*
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