0 votes 0 votes closed Why r2 is used again at the end as we are not supposed to assign a value to a variable more than once in SSA. rajatshukla2910 asked Oct 20, 2018 • closed Oct 20, 2018 by rajatshukla2910 rajatshukla2910 212 views comment Share Follow See 1 comment See all 1 1 comment reply Shaik Masthan commented Oct 20, 2018 reply Follow Share the answer provided by them is not for that question, it is mis-matched the link between question and answer. duplicate of https://gateoverflow.in/228305/compiler-single-static-assignment if you get it, close your question 0 votes 0 votes Please log in or register to add a comment.