gccgo successfully compiles the following program:
package main
import "fmt"
func main() {
var a = complex()()
var i interface{} = a
fmt.Printf("i: %T %#v\n", i, i)
fmt.Printf("a: %T %#v\n", a, a)
fmt.Printf("i: %T %#v\n", i, i)
}The program panics when executed:
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0]
goroutine 16 [running]:
reflect.rawString.pN13_reflect.rtype
../../../libgo/go/reflect/type.go:467
reflect.canonicalize
../../../libgo/go/reflect/type.go:1943
reflect.toType
../../../libgo/go/reflect/type.go:1964
reflect.TypeOf
../../../libgo/go/reflect/type.go:1032
fmt.printArg.pN6_fmt.pp
../../../libgo/go/fmt/print.go:745
fmt.doPrintf.pN6_fmt.pp
../../../libgo/go/fmt/print.go:1183
fmt.Fprintf
../../../libgo/go/fmt/print.go:188
fmt.Printf
../../../libgo/go/fmt/print.go:197
main.main
/tmp/111.go:7
created by main
../../../libgo/runtime/go-main.c:48
gcc version 6.0.0 2015070 (experimental) (GCC)
gccgo successfully compiles the following program:
The program panics when executed:
gcc version 6.0.0 2015070 (experimental) (GCC)