// -playground
// RUN: %target-playground-build-run-swift(-swift-version 5 -Xfrontend -playground) | %FileCheck %s
// RUN: %target-playground-build-run-swift(-swift-version 6 -Xfrontend -playground) | %FileCheck %s
//
// -pc-macro -playground
// RUN: %target-playground-build-run-swift(-swift-version 5 -Xfrontend -pc-macro -Xfrontend -playground) | %FileCheck %s
// RUN: %target-playground-build-run-swift(-swift-version 6 -Xfrontend -pc-macro -Xfrontend -playground) | %FileCheck %s
//
// REQUIRES: executable_test

import PlaygroundSupport

do {
  1
}
// CHECK: {{.*}} __builtin_log[='1']