[llvm-dev] Get arguments of a function (bitcast)
Mohammad Norouzi via llvm-dev
llvm-dev at lists.llvm.org
Tue Jan 12 07:43:13 PST 2016
Hi All,
I need to get the list of arguments of a function which is bitcasted.
Here is the C code excerpt:
main()
{
.....
/* Get input samples */
input_dsp(input, N, 1);
.....
}
and here is llvm ir for the code section:
%call = call i32 (i32*, i32, i32, ...)* bitcast (i32 (...)* @input_dsp to
i32 (i32*, i32, i32, ...)*)(i32* getelementptr inbounds ([256 x i32]*
@input, i32 0, i32 0), i32 256, i32 1)
When I use the ordinary method for getting arguments,
for (Function::ArgumentListType::iterator it =
f->getArgumentList().begin(); it != f->getArgumentList().end(); it++) {...}
i get a segmentation fault which i think i valid. But how can i get
arguments of *input_dsp* which are *input*, *N* and *1* in this case.
Best,
Mo
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