B.2.15 Scalar Optimization (SO)

• Block loop for strip mining with block size "#1". This loop is the block loop of a strip-mined loop with the given block size.

• Cleanup loop for loop unrolling. Following loop unrolling, the present loop is the cleanup loop, and was generated for executing the remainder of the iterations not covered by the main loop that has been unrolled.

• Cleanup loop for strip mining with block size "#1". This loop is the cleanup loop of a strip-mined loop with the given block size.

• Execution flow from this statement has been unconditionally resolved. The execution path of this conditional statement has already been determined.

• Loop is empty or is zero-trip. An empty or zero trip DO loop has been identified.

• Loop unrolled "#1" times to improve scalar performance. Following loop unrolling, the present loop is the main loop where the primary number of iterations are executed.

• Statement deleted because of scalar optimization. Data flow analysis has determined that the execution of this statement is unnecessary. The statement may reference an unused definition in the original program or forward-substitution may have made the definition redundant.

• Strip loop for strip mining with block size "#1". This loop is the strip loop of a strip-mined loop with the given block size.

• Unreachable statement. Flow analysis has determined that no execution path leads to this statement. Check the logic of the program unit.

• Unused definition. Data flow analysis has determined that the execution of this statement is unnecessary.