B.2.18 Vector Enhanced (VE)

• IF statement was inserted when a wraparound variable was removed. A loop was unrolled to remove a wraparound variable. This IF statement was inserted so that the unrolled portion of the loop would not be executed because the original loop had fewer iterations than the number of unrolls.

• Loop has been fused with others to reduce overhead. Compatible adjoining loops have been fused together to reduce the total execution overhead.

• Loop replaced by call to optimized routine "#1". This loop was replaced by a call to an appropriate optimized routine.

• Loop unrolled to remove wraparound index variable. The loop starting at the indicated statement was unrolled one or more times to remove a wraparound index variable. For each iteration that was unrolled, the loop body was copied once before the loop statement, and an IF statement was inserted around the copied loop body and the original loop to ensure that the body is executed the proper number of times.

• Statement copied during loop unrolling to remove a wraparound variable. The loop containing this statement was unrolled one or more times to remove a wraparound scalar variable. This statement was one of those within the loop that was copied when the loop was unrolled.

• Statement inserted to save the initial value of an induction variable. This statement was inserted to save the initial value of an induction variable. The induction variable was converted to a form that depends only on the loop index and loop-invariant expressions. The variable assigned in this statement was created to hold the value that the induction variable had upon entering the loop nest.