Building a More Secure World with the RISC-V ISA

Re:Building a More Secure World with the RISC-V ISA by rayiner on Sunday January 07, 2018 @11:31AM (#16091375)

This shouldn’t be downvoted. The reason to have a branch predictor is so you can speculatively execute down the predicted path when you hit a branch. Although I think the Spectre attack requires not only speculation, but the ability to perform loads out of program order.

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Re:Building a More Secure World with the RISC-V ISA by fulafel on Sunday January 07, 2018 @03:48PM (#16092610)

It's a reason, but not the only reason. In-order superscalar processors rely heavily on branch prediction too.

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