flang/test/Semantics/canondo12.f90

   1 ! Error test -- DO loop uses obsolete loop termination statement (warning)
   2 ! See R1131 and C1133
   3
   4 ! By default, this is not an error and label do are rewritten to non-label do.
   5 ! A warning is generated with -pedantic
   6
   7 ! RUN: %flang_fc1 -fdebug-unparse-with-symbols -pedantic %s 2>%t.stderr | FileCheck %s
   8
   9 ! CHECK: end do
  10
  11 ! The following CHECK-NOT actively uses the fact that the leading zero of labels
  12 ! would be removed in the unparse but not the line linked to warnings. We do
  13 ! not want to see label do in the unparse only.
  14 ! CHECK-NOT: do [1-9]
  15
  16 ! RUN: FileCheck --check-prefix=ERR --input-file=%t.stderr %s
  17 ! ERR: A DO loop should terminate with an END DO or CONTINUE
  18
  19 subroutine foo4()
  20   real :: a(10, 10), b(10, 10) = 1.0
  21   do 01 k=1,4
  22     block
  23       real b
  24       b = a(k, k)
  25       a(k, k) = k*b
  26 01  end block
  27 end subroutine