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Method for vectorizing and executing on an SIMD machine outer loops in the presence of recurrent inner loops
Method for vectorizing and executing on an SIMD machine outer loops in the presence of recurrent inner loops
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机译:在存在重复内部循环的情况下在SIMD机器外部循环上向量化和执行的方法
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摘要
A method is disclosed for increasing the number of procedural language scalar instructions which may be executed on a vector SIMD machine. The method, operative in the compiling of the source-to-object code, utilizes a mapping representation of the source code statements onto a dependence graph and noting that the innermost sensitive level n and loop- independent edges of the program mapped onto the graph can be vectorized if every level n dependence can be reordered to operate as an innermost loop and if there are no cycles after the reordering. This indicates that the code can be vectorized at level n.
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