Invention Grant
US08935684B2 Loop invariant method expression hoisting 有权
循环不变方法表达式起重

Loop invariant method expression hoisting
Abstract:
A system, method and computer-readable medium are disclosed for improving the performance of a compiler. A set of source code instructions are processed to generate a plurality of source code instruction subsets, each of which is respectively associated with a mathematical operator. The source code subsets are then reordered to “hoist,” or place, a source code instruction subset associated with a product operator before a source code instruction subset associated with a summation operator. The plurality of source code instruction subsets are iteratively reordered until no source code instruction subset associated with a summation operator precedes a source code instruction subset associated with a product operator. A compiler is then used to compile the resulting reordered plurality of source code instruction subsets into a set of optimized object code instructions.
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