gcc/testsuite/gfortran.dg/trim_optimize_2.f90

   1 ! { dg-do run }
   2 ! { dg-options "-O -fdump-tree-original" }
   3 ! Optimize unnecessary TRIMs in contained namespaces too.
   4 module faz
   5   implicit none
   6 contains
   7   subroutine bar
   8     character(len=3) :: a
   9     character(len=4) :: b,c
  10     b = 'abcd'
  11     a = trim(b)
  12     c = trim(trim(a))
  13     if (a /= 'abc') call abort
  14     if (c /= 'abc') call abort
  15   end subroutine bar
  16 end module faz
  17
  18 program main
  19   use faz
  20   implicit none
  21   call foo
  22   call bar
  23 contains
  24   subroutine foo
  25     character(len=3) :: a
  26     character(len=4) :: b,c
  27     b = 'abcd'
  28     a = trim(b)
  29     c = trim(trim(a))
  30     if (a /= 'abc') call abort
  31     if (c /= 'abc') call abort
  32   end subroutine foo
  33 end program main
  34
  35 ! { dg-final { scan-tree-dump-times "memmove" 6 "original" } }
  36 ! { dg-final { scan-tree-dump-times "string_trim" 0 "original" } }