llvm dev - Aug 2019 - LLVM-8.0 | Requesting Help : Function->getName() returns empty string

Hello All,

I am creating a Module and getting Function pointer as below in some
function.

Function *fn = module->getFunction(fnName);
printf("func Name: %s.\n", fn->getName().str().c_str());
.
.
return (intptr_t) fn;

This prints : "func Name: main." I convert the ptr to int and return
it.

Later I am receiving this as a Func Handler in other function

executeFunction(int funcHandle . .) {
.
.
    Function *fn = (Function *) funcHandle;
    printf("func Name: %s\n",fn->getName().str().c_str());

    gv = executionEngine->runFunction(fn, *args);
.
}

Here it prints an empty string and also the executionEngine->runFunction()
gives error : Assertion failed! Expression: GV->hasName() &&
"Global must
have name."

I am using LLVM-8.0. Please let me know if I am missing out something OR if
the procedure is wrong

Best regards,

Manoj
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Yes, I did.  I printed out the one I am returning and the one I am
receiving. Both are same. This use to work on LLVM-3.3. Now I am trying to
port it to 8.0.

Please let me know, I can provide you with more code prior to this, If that
would help.

Regards,
Manoj

On Fri, Aug 23, 2019 at 12:42 PM Tim Northover <t.p.northover at
gmail.com>
wrote:
> Hi Manoj,
>
> > Here it prints an empty string and also the
> executionEngine->runFunction() gives error : Assertion failed!
Expression:
> GV->hasName() && "Global must have name."
>
> Have you checked that it's definitely the same pointer? Obviously the
> code you posted isn't real but it does show funcHandle being passed as
> an int rather than an intptr, which could easily truncate the value.
>
> Cheers.
>
> Tim.
>
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Hi Manoj,
> Here it prints an empty string and also the
executionEngine->runFunction() gives error : Assertion failed! Expression:
GV->hasName() && "Global must have name."
Have you checked that it's definitely the same pointer? Obviously the
code you posted isn't real but it does show funcHandle being passed as
an int rather than an intptr, which could easily truncate the value.

Cheers.

Tim.