What version of Go are you using (go version)?

$ go version

gollvm

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

$ go env

What did you do?

error case:

package main

import (
    "fmt"
    "syscall"
)

func main() {
    b := foo2()
    fmt.Println(b)
}

//go:noinline
func foo2() uint32 {
    var evt uint32
    //evt = (-syscall.EPOLLET) | syscall.EPOLLOUT
    evt = (-syscall.EPOLLET)
    fmt.Println(evt)
    return evt
}

What did you expect to see?

2147483648
2147483648

What did you see instead?

error: integer constant overflow

Error description

Found in netpoll building, the user assume this value is negative and get its opposite value. But it's positive in gollvm.
In golang/go, EPOLLET is set to -0x80000000. Is it better to be consistent between the two compilers? Therefore, there is no programming gap when programmers use different compilers. (https://github.com/golang/go/blob/master/src/syscall/zerrors_linux_amd64.go)