golang编译器是否使用常量折叠？

Question

just wondering if "go" compiler uses any sort of optimization such as constant folding.

https://en.wikipedia.org/wiki/Constant_folding

searched through google but couldn't find the answer i'm looking for.

Answer 1

Try to write a simple program: eg.

package main

import "fmt"

func main() {
    fmt.Println(12345*1000)
}

And now compile it to assembly

go tool compile -S examle.go

And now find 12345 in the result and you will have an answer.