gcc/testsuite/gfortran.dg/gomp/appendix-a/a.31.3.f90

! { dg-do compile }
PROGRAM A31_3_WRONG
  MAX = HUGE(0)
  M=0
  !$OMP PARALLEL DO REDUCTION(MAX: M) ! MAX is no longer the intrinsic so this is non-conforming
  ! { dg-error "OMP DECLARE REDUCTION max not found" "" { target *-*-* } .-1 } */
  DO I = 1, 100
     CALL SUB(M,I)
  END DO
END PROGRAM A31_3_WRONG
SUBROUTINE SUB(M,I)
  M = MAX(M,I)
END SUBROUTINE SUB