#include <metal_stdlib>

using namespace metal;

#define TINT_ISOLATE_UB(VOLATILE_NAME) \
  volatile bool VOLATILE_NAME = true; \
  if (VOLATILE_NAME)

void some_loop_body() {
}

void f() {
  TINT_ISOLATE_UB(tint_volatile_true) for(int i = 0; (i < 5); i = as_type<int>((as_type<uint>(i) + as_type<uint>(1)))) {
    some_loop_body();
  }
}