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cmd/compile: better append of unmodified slices #37694
What version of Go are you using (
It’s definitely possible for them to be improved. The question—which I can’t answer offhand—is whether it is possible to make a small, local improvement that would cover this case, or whether it would require an overhaul. (There are good independent reasons for an overhaul, but what is needed—eliminating one of the compiler’s intermediate representations—is a huge undertaking.)