发明授权
US06571385B1 Early exit transformations for software pipelining 有权
软件流水线的早期退出转换

Early exit transformations for software pipelining
摘要:
The invention is directed to the transformation of software loops having early exit conditions, thereby allowing the loops to be more effectively converted to a single basic block for software pipelining. The invention assigns a predicate register for each early exit condition of the software loop. The predicate registers are set when the corresponding early exit condition is satisfied. In this manner, when the loop terminates the predicate registers can be examined to indicate which early exit conditions were satisfied. The invention produces loops having a lower recurrence II and resource II than conventional techniques.
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