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Method and apparatus for prediction for fork and join instructions in speculative execution
Method and apparatus for prediction for fork and join instructions in speculative execution
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机译:在推测执行中预测fork和join指令的方法和装置
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摘要
A method and apparatus for enabling the speculative forking of a speculative thread is disclosed. In one embodiment, a speculative fork instruction is conditioned by the results of a fork predictor. The fork predictor may issue predictions as to whether or not a speculative thread would execute desirably. The fork predictor may be implemented as a modified branch predictor circuit, and may have execution history updates entered by a determination of whether or not the execution of a speculative thread was or would have been desirable.
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