flang/test/Semantics/symbol19.f90

   1 ! RUN: %python %S/test_symbols.py %s %flang_fc1
   2
   3 ! Test that a procedure is only implicitly resolved as an intrinsic function
   4 ! (resp. subroutine) if this is a function (resp. subroutine)
   5
   6 !DEF: /expect_external (Subroutine) Subprogram
   7 subroutine expect_external
   8  !DEF: /acos EXTERNAL (Subroutine) ProcEntity
   9  !DEF: /expect_external/x (Implicit) ObjectEntity REAL(4)
  10  call acos(x)
  11  !DEF: /expect_external/i (Implicit) ObjectEntity INTEGER(4)
  12  !DEF: /system_clock EXTERNAL (Function, Implicit) ProcEntity REAL(4)
  13  !DEF: /expect_external/icount (Implicit) ObjectEntity INTEGER(4)
  14  i = system_clock(icount)
  15 end subroutine
  16
  17 !DEF: /expect_intrinsic (Subroutine) Subprogram
  18 subroutine expect_intrinsic
  19  !DEF: /expect_intrinsic/y (Implicit) ObjectEntity REAL(4)
  20  !DEF: /expect_intrinsic/acos ELEMENTAL, INTRINSIC, PURE (Function) ProcEntity
  21  !DEF: /expect_intrinsic/x (Implicit) ObjectEntity REAL(4)
  22  y = acos(x)
  23  !DEF: /expect_intrinsic/system_clock INTRINSIC (Subroutine) ProcEntity
  24  !DEF: /expect_intrinsic/icount (Implicit) ObjectEntity INTEGER(4)
  25  call system_clock(icount)
  26 end subroutine
  27
  28 ! Sanity check that the EXTERNAL attribute is not bypassed by
  29 ! implicit intrinsic resolution, even if it otherwise perfectly
  30 ! matches an intrinsic call.
  31
  32 !DEF: /expect_external_2 (Subroutine) Subprogram
  33 subroutine expect_external_2
  34  !DEF: /expect_external_2/matmul EXTERNAL (Function, Implicit) ProcEntity INTEGER(4)
  35  external :: matmul
  36  !DEF: /expect_external_2/cpu_time EXTERNAL (Subroutine) ProcEntity
  37  external :: cpu_time
  38  !DEF: /expect_external_2/x ObjectEntity REAL(4)
  39  !DEF: /expect_external_2/y ObjectEntity REAL(4)
  40  !DEF: /expect_external_2/z ObjectEntity REAL(4)
  41  !DEF: /expect_external_2/t ObjectEntity REAL(4)
  42  real x(2,2), y(2), z(2), t
  43  !REF: /expect_external_2/z
  44  !REF: /expect_external_2/matmul
  45  !REF: /expect_external_2/x
  46  !REF: /expect_external_2/y
  47  z = matmul(x, y)
  48  !REF: /expect_external_2/cpu_time
  49  !REF: /expect_external_2/t
  50  call cpu_time(t)
  51 end subroutine