gcc/testsuite/go.dg/concatstring.go

   1 // { dg-do compile }
   2 // { dg-options "-fgo-debug-optimization" }
   3
   4 package p
   5
   6 func F(b []byte, x string) string {
   7         return "hello " + string(b) + x // { dg-error "no copy string\\(\\\[\\\]byte\\)" }
   8 }