For more than three decades, modern CPUs have relied on speculative execution to keep pipelines full. When it emerged in the 1990s, speculation was hailed as a breakthrough — just as pipelining and ...
With a new Apple security flaw in the news, it's a good time to revisit the question of what speculative execution is and how it works. This topic received a great deal of discussion a few years ago ...
A new LLVM patch has added V_FMA_F32, a 3-operand fused multiply-add (FMA instruction) and introduced the VOPD3 instruction format for RDNA 5.