gcc/testsuite/gfortran.dg/intrinsic_std_6.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-std=f95 -Wintrinsics-std -fdump-tree-original" }
   3
   4 !
   5 ! See intrinsic_std_1.f90 for more compile-time checks
   6 !
   7
   8 ! PR fortran/33141
   9 ! Check for the expected behaviour when an intrinsic function/subroutine is
  10 ! called that is not available in the defined standard or that is a GNU
  11 ! extension:
  12 ! There should be a warning emitted on the call, and the reference should be
  13 ! treated like an external call.
  14 ! For declaring a non-standard intrinsic INTRINSIC, a hard error should be
  15 ! generated, of course.
  16
  17 SUBROUTINE no_implicit
  18   IMPLICIT NONE
  19   REAL :: asinh ! { dg-warning "Fortran 2008" }
  20
  21   ! abort is a GNU extension
  22   CALL abort () ! { dg-warning "extension" }
  23
  24   ! ASINH is an intrinsic of F2008
  25   ! The warning should be issued in the declaration above where it is declared
  26   ! EXTERNAL.
  27   WRITE (*,*) ASINH (1.) ! { dg-warning "Fortran 2008" }
  28 END SUBROUTINE no_implicit
  29
  30 SUBROUTINE implicit_type
  31   ! acosh has implicit type
  32
  33   WRITE (*,*) ACOSH (1.) ! { dg-warning "Fortran 2008" }
  34   WRITE (*,*) ACOSH (1.) ! { dg-bogus "Fortran 2008" }
  35 END SUBROUTINE implicit_type
  36
  37 ! Scan that really external functions are called.
  38 ! { dg-final { scan-tree-dump " abort " "original" } }
  39 ! { dg-final { scan-tree-dump " asinh " "original" } }
  40 ! { dg-final { scan-tree-dump " acosh " "original" } }
  41 ! { dg-final { cleanup-tree-dump "original" } }