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by CalChris
1846 days ago
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Although it says Software Assisted Branch Prediction, it's really talking about the indirect jumps used for method dispatch rather than conditional branches used for logic. The only static indirect jump hints I'm aware of, and Intel uses this, is next instruction. Unless it's in the BTB, the default speculated indirect jump target is the next instruction. This means the programmer should make the most common target follow the indirect jump instruction itself. See Assembly/Compiler Coding Rule 50 in the Intel® 64 and IA-32 Architectures Optimization Reference Manual |
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