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authorBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
committerBen Cheng <bccheng@google.com>2014-03-25 22:37:19 -0700
commit1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch)
treec607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gfortran.dg/trim_optimize_4.f90
parent283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff)
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Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gfortran.dg/trim_optimize_4.f90')
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+! { dg-do run }
+! PR 47065 - make sure that trim optimization does not lead to
+! wrong-code with aliasing.
+! Test case provided by Tobias Burnus.
+program main
+ character(len=12) :: str
+ str = '1234567890'
+ call sub(trim(str), str)
+ ! Should print '12345 '
+ if (str /= '12345 ') call abort
+ call two(trim(str))
+ if (str /= '123 ') call abort
+contains
+ subroutine sub(a,b)
+ character(len=*), intent(in) :: a
+ character(len=*), intent(out) :: b
+ b = ''
+ b = a(1:5)
+ end subroutine sub
+ subroutine two(a)
+ character(len=*), intent(in) :: a
+ str = ''
+ str(1:3) = a(1:3)
+ end subroutine two
+end program main