Extraction of constant operands from the instruction

Hello,

However, whenever there is a constant operand like a numerical value, it
does not displays any value at all, i checked using the hasName() method,
for the constant operands the hasName() returns 0.

Correct. Constant doesn't have name at all. You should check, whether
operand is a constant, cast the Value to Constant (for example, via
dyn_cast facility) and then use the Constant' methods to obtain the
exact value.

How can i extract the name of the instruction i.e. %tmp6

getName() will return it.