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! { dg-do compile }

! Tests the fix for PR27554, where the actual argument reference

! to abs would not be recognised as being to an intrinsic

! procedure and would produce junk in the assembler.

!

! Contributed by Francois-Xavier Coudert <fxcoudert@gcc.gnu.org> 

!

      subroutine foo (proc, z)

        external proc

        real proc, z

        if ((proc(z) .ne. abs (z)) .and.

     &      (proc(z) .ne. alog10 (abs(z)))) call abort ()

        return

      end

        external cos

        interface

          function sin (a)

            real a, sin

          end function sin

        end interface

        intrinsic alog10

        real x

        x = 100.

! The reference here would prevent the actual arg from being seen

! as an intrinsic procedure in the call to foo.

        x = -abs(x)

        call foo(abs, x)

! The intrinsic function can be locally over-ridden by an interface

        call foo(sin, x)

! or an external declaration.

        call foo(cos, x)

! Just make sure with another intrinsic but this time not referenced.

        call foo(alog10, -x)

      end

      function sin (a)

        real a, sin

        sin = -a

        return

      end

      function cos (a)

        real a, cos

        cos = -a

        return

      end