alt Hacker NewsAnd personally, I'm not even sure it crosses that bar.
RISC-V somehow manages to be more fragmented than x86 (which is impressive), and just can't compete on instruction density.
I think a large part of the issue with RISC-V is that it predates (public knowledge of) ARMv8 by a year or two, so it couldn't use it as inspiration. If you compare RISC-V to 32-bit ARM, the comparisons are much more favourable.
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monocasa • yesterday at 2:49 AM
Everything I've seen is that rv64gc is very competitive with aarch64 wrt code density.
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> think a large part of the issue with RISC-V is that it predates (public knowledge of) ARMv8 by a year or two
Does it? https://people.eecs.berkeley.edu/~krste/papers/EECS-2016-1.p... has a section on ARMv8 (section 2.5)
It says they became aware of it a year after they started the RISC-V project, but that’s five years before that paper was published.