flang/test/Semantics/canondo11.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
   8 ! RUN: %flang_fc1 -fdebug-unparse-with-symbols -pedantic %s 2>%t.stderr | FileCheck %s
   9
  10 ! CHECK: end do
  11
  12 ! The following CHECK-NOT actively uses the fact that the leading zero of labels
  13 ! would be removed in the unparse but not the line linked to warnings. We do
  14 ! not want to see label do in the unparse only.
  15 ! CHECK-NOT: do [1-9]
  16
  17 ! RUN: FileCheck --check-prefix=ERR --input-file=%t.stderr %s
  18 ! ERR: A DO loop should terminate with an END DO or CONTINUE
  19
  20 subroutine foo3()
  21   real :: a(10, 10), b(10, 10) = 1.0
  22   do 01 k=1,4
  23     associate (x=>a(k+1, 2*k), y=>b(k, 2*k-1))
  24       x = 4*x*x + x*y -2*y
  25 01  end associate
  26 end subroutine