1! RUN: %flang_fc1 -E %s 2>&1 | FileCheck %s 2! CHECK: subroutine test(ARG1, FA, FB, ARG2) 3! CHECK: end 4 5subroutine test( & 6ARG1, & 7! test 8#ifndef SWAP 9#define ARG1 FA 10#define ARG2 FB 11#else 12#define ARG1 FB 13#define ARG2 FA 14#endif 15ARG1, ARG2, & 16! test 17#undef ARG1 18#undef ARG2 19&ARG2) 20! comment 21end 22