Two algorithms that combine the operations of scheduling and recovery-point insertion for high-level synthesis of recoverable microarchitectures are presented. The first uses a prioritized cost function in which functional unit (FU) cost is minimized first and register cost second. The second algorithm minimizes a weighted sum of FU and register costs. Both algorithms are optimal according to their respective cost functions and require less than 10 min of central processing unit (CPU) time on

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... dely used high-level synthesis benchmarks. The best previous result reported several hours of CPU time for some of the same benchmarks on a computer of similar computational power.