Re: How to use Clang LTO + PGO with Nim

[cblake]

Yeah. I'm not sure what it is, exactly, about Nim-generated C code, but PGO 
tends to benefit it more than "my typical C". So, it makes sense the compiler 
itself could get a 1.25x speed-up. Might be more|less on gcc. I've probably 
mentioned this about 10x over the past 5 years, but here's one from about a 
year ago: [https://forum.nim-lang.org/t/4517](https://forum.nim-lang.org/t/4517)