Automatic Instruction Scheduler Retargeting by Reverse-Engineering

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Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
In order to generate high-quality code for modern processors, a compiler must aggressively schedule instructions, maximizing resource utilization for execution efficiency. For a compiler to produce such code, it must avoid structural hazards by being aware of the processor's available resources and of how these resources are utilized by each instruction. Unfortunately, the most prevalent approach to constructing such a scheduler, manually discovering and specifying this information, is both tedious and error-prone. This paper presents a new approach which, when given a processor or processor model, automatically determines this information.
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