how to get the instruction from the operand

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Hello,

for example, I have the llvm bitcode:

%1 = getelementptr inbounds %People %localPeople, i32 0, i32 1

store i32* %1 i32** %temp

if I have the pointer to the temp, which is ‘Value *temp’, how do I get
‘Value *localPeople’ ? Is there any way to back traverse the instruction ?

thanks !