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by glram 2233 days ago
This is quite a disappointment indeed. Turns out that compilers only use like 10% of the instructions in x86. While there are some efforts to fix this (at least for SIMD) with better heuristics, I fear that the best way to solve this might be to go with simpler ISAs and drive up the clock speed.
1 comments

Absolutely. I feel that all the ~7.7k opcodes for x86_64 aren't helping things at all.

I had high hopes for RISC-V but I already heard the usual BS about "extensions that vendors may choose to implement or not" and I kind of lost hope. :(