A compiler framework for Predicated Execution is designed and implemented.

设计并实现了支持谓词执行的编译框架。

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Predicated execution also brings new challenges to traditional compilers. They can only get conservative optimizations without precise predicate relation analysis.

谓词的引入给传统编译优化技术带来了新的问题，如果不能准确分析谓词关系，编译优化只能获得保守的结果。

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Several basic blocks could be merged into a hyperblock in predicated execution so that instructions could be scheduled on a larger scope and more instruction level parallelism could be extracted.

谓词执行技术能够将多个基本块合并为一个超块，扩大指令调度范围，开发更多的指令级并行。

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