--- /dev/null
+package pkg
+
+const a = 0
+
+const (
+ b = iota
+ c
+)
+
+const (
+ y = 42
+
+ d = iota
+)
+
+func fn(x int) {
+ println(x | 0) // want `x \| 0 always equals x`
+ println(x & 0) // want `x & 0 always equals 0`
+ println(x ^ 0) // want `x \^ 0 always equals x`
+ println((x << 5) | 0) // want `\(x << 5\) \| 0 always equals \(x << 5\)`
+ println(x | 1)
+ println(x << 0)
+
+ println(x | a)
+ println(x | b) // want `x \| b always equals x; b is defined as iota`
+ println(x & b) // want `x & b always equals 0; b is defined as iota`
+ println(x | c)
+
+ // d is iota, but its value is 1
+ println(x | d)
+}