Hi Sumit,
Presumably you are looking into Executor::executeInstruction method.If you take
a look at, for example the code that handle LLVM'sInstruction::Add right after
"case Instruction::Add:"
ref<Expr> left = eval(ki, 0, state).value;
ref<Expr> right = eval(ki, 1, state).value;
ref<Expr> result = AddExpr::create(left, right);
bindLocal(ki, state, result);
You can check whether left is a constant or not using
llvm::isa<ConstantExpr>(left.get())
In case the above returns false, then left is some expressioninvolving symbolic
variables, which you can examine by executing
left->dump();
Similarly with right. I hope this answers your question.
Best,
Andrew
On Friday, 18 March 2016, 1:18, Sumit Kumar <[email protected]> wrote:
Hi,
I want to know if there is a way to know if a variable is symbolic or not in
KLEE when KLEE is executing an instruction involving the variable.
--
Thanks and Regards,
Sumit
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