I clicked through to the AES example, and found that it "makes use of Go Assembly to leverage Intel's hardware support for AES, calling the AES-NI CPU instructions." So does that only work on Intel CPUs?
I'm confused about why Go has its own assembly syntax if you're going to be writing platform-specific code anyway. Or can you write Go assembly that works well on both x86 and ARM, say?
EDIT to put the question a different way: what are some use cases where you'd use Go assembly? In C, you'd typically drop down to platform-specific assembly for two reasons: 1) to muck about with the stack, for example in a threading library, or 2) to use platform-specific instructions, like NEON or SSE. (In that second case you can often get away with intrinsics rather than assembly, though.) Does Go assembly have the same uses, or different ones?