Which one of the following is FALSE?

GATE · 2014 · CS · Set 1 · Computer Science & IT

1. A.

   A basic block is a sequence of instructions where control enters the sequence at the beginning and exits at the end

2. B.

   Available expression analysis can be used for common subexpression elimination

3. C.

   Live variable analysis can be used for dead code elimination

4. D.

   x = 4 * 5 ⇒ x = 20 is an example of common subexpression elimination

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