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。
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。
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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