Bug in division of bytes on amd64

[gopherbot]

by [email protected]:

package main

func main() {
        // 5
    println(5 / (5 / 3))

        // 5
    println(byte(5) / (byte(5) / byte(3)))

        // 5
    var a, b byte = 5, 3
    println(a / (a / b))
    
    // integer divide by zero in golang.org sandbox
    // 0 on windows/amd64
    x := [3]byte{2, 3, 5}
    println(x[2] / (x[2] / x[1]))

    // integer divide by zero in golang.org sandbox
    // crash on windows/amd64
    y := x[1:3]
    println(y[1] / (y[1] / y[0]))
}

[gopherbot]

Comment 1 by [email protected]:

same with int8, uint8, int16, uint16

[rsc]

Comment 2:

Nice bug.

Owner changed to @rsc.

Status changed to Accepted.

[rsc]

Comment 3:

*** Submitted as
http://code.google.com/p/go/source/detail?r=fc60ef40030f ***
gc: fix div bug
R=ken2
CC=golang-dev

Status changed to Fixed.