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Arthur T Knackerbracket has found the following story:
GO binaries are weird, or at least, that is where this all started out. While delving into some Linux malware named Rex, I came to the realization that I might need to understand more than I wanted to. Just the prior week I had been reversing Linux Lady which was also written in GO, however it was not a stripped binary so it was pretty easy. Clearly the binary was rather large, many extra methods I didn't care about - though I really just didn't understand why. To be honest - I still haven't fully dug into the Golang code and have yet to really write much code in Go, so take this information at face value as some of it might be incorrect; this is just my experience while reversing some ELF Go binaries! If you don't want to read the whole page, or scroll to the bottom to get a link to the full repo, just go here.
-- submitted from IRC
(Score: 2) by RamiK on Tuesday December 20 2016, @07:02PM
Worse, it even jumps around a mov. cmov was introduced into x86 back in 1993-ish.
cmov is often slower [yarchive.net].
However, the bigger problem appears to be the several thousand functions of bloat...
Some work was done for 1.7 [golang.org] but during 1.8 efforts were refocused on expanding the SSA backend since it involved linker refractoring that should make stuff like dead-code elimination during the linking stage easier.
The thing to remember is that Go's GC and the stdlib's unicode, TLS and HTTP2 support can always be improved upon so shaving off a few bytes off the binaries is just not that appealing as a standalone priority.
compiling...