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1! RUN: bbc -emit-hlfir %s -o - | FileCheck %s2 3! Check that the lowering does not generate fir.box_addr for4! the optional box. It will cause segfault during execution.5 6! CHECK-LABEL: func.func @_QPtest(7! CHECK-SAME: %[[VAL_0:.*]]: !fir.box<!fir.array<?xi32>> {fir.bindc_name = "ext_buf", fir.contiguous, fir.optional}) {8! CHECK: %[[VAL_1:.*]]:2 = hlfir.declare %[[VAL_0]] dummy_scope %{{[0-9]+}} arg {{[0-9]+}} {fortran_attrs = #fir.var_attrs<contiguous, optional>, uniq_name = "_QFtestEext_buf"} : (!fir.box<!fir.array<?xi32>>, !fir.dscope) -> (!fir.box<!fir.array<?xi32>>, !fir.box<!fir.array<?xi32>>)9! CHECK: %[[VAL_2:.*]] = fir.is_present %[[VAL_1]]#1 : (!fir.box<!fir.array<?xi32>>) -> i110! CHECK: cf.cond_br %[[VAL_2]], ^bb1, ^bb211! CHECK: ^bb1:12! CHECK: %[[VAL_3:.*]] = arith.constant 0 : i3213! CHECK: %[[VAL_4:.*]] = arith.constant false14! CHECK: %[[VAL_5:.*]] = arith.constant false15! CHECK: fir.call @_FortranAStopStatement(%[[VAL_3]], %[[VAL_4]], %[[VAL_5]]) fastmath<contract> : (i32, i1, i1) -> ()16! CHECK: fir.unreachable17! CHECK: ^bb2:18! CHECK: cf.br ^bb319! CHECK: ^bb3:20! CHECK: return21! CHECK: }22subroutine test(ext_buf)23 integer, contiguous, optional :: ext_buf(:)24 if (present(ext_buf)) then25 stop26 endif27 return28end subroutine test29