flang/test/Semantics/block-data01.f90

   1 ! RUN: %python %S/test_errors.py %s %flang_fc1
   2 ! Test BLOCK DATA subprogram (14.3)
   3 block data foo
   4   !ERROR: IMPORT is not allowed in a BLOCK DATA subprogram
   5   import
   6   real :: pi = asin(-1.0) ! ok
   7   !ERROR: An initialized variable in BLOCK DATA must be in a COMMON block
   8   integer :: notInCommon = 1
   9   integer :: uninitialized ! ok
  10   !PORTABILITY: Procedure pointer 'q' should not have an ELEMENTAL intrinsic as its interface
  11   !ERROR: 'q' may not appear in a BLOCK DATA subprogram
  12   procedure(sin), pointer :: q => cos
  13   !ERROR: 'p' may not be a procedure as it is in a COMMON block
  14   procedure(sin), pointer :: p => cos
  15   common /block/ p, pi
  16   !ERROR: An initialized variable in BLOCK DATA must be in a COMMON block
  17   integer :: inDataButNotCommon
  18   data inDataButNotCommon /1/
  19   integer :: inCommonA, inCommonB
  20   !ERROR: 'incommona' in COMMON block /a/ must not be storage associated with 'incommonb' in COMMON block /b/ by EQUIVALENCE
  21   common /a/ inCommonA, /b/ inCommonB
  22   equivalence(inCommonA, inCommonB)
  23   integer :: inCommonD, initialized ! ok
  24   common /d/ inCommonD
  25   equivalence(inCommonD, initialized)
  26   data initialized /2/
  27   integer :: inCommonE, jarr(2)
  28   equivalence(inCommonE, jarr(2))
  29   !ERROR: 'incommone' cannot backward-extend COMMON block /e/ via EQUIVALENCE with 'jarr'
  30   common /e/ inCommonE
  31   equivalence(inCommonF1, inCommonF2)
  32   integer :: inCommonF1, inCommonF2
  33   !ERROR: 'incommonf1' is storage associated with 'incommonf2' by EQUIVALENCE elsewhere in COMMON block /f/
  34   common /f/ inCommonF1, inCommonF2
  35   !Regression test for llvm-project/issues/65922 - no error expected
  36   common /g/ inCommonG1, inCommonG2
  37   real inCommonG1(-9:10), inCommonG2(10), otherG(11)
  38   equivalence (inCommonG1(1), otherG), (otherG(11), inCommonG2)
  39 end block data