Sure, but SIMD extensions and base ISA solve different problems. As for GPUs, while the ISA is not constant, it's STILL C-ish running over a dynamic hardware s

Sure, but SIMD extensions and base ISA solve different problems. As for GPUs, while the ISA is not constant, it's STILL C-ish running over a dynamic hardware scheduling layer. Edit: To clarify, I have nothing against a closed ISA, I just don't see how making that ISA non-C-ish is valuable.