Given this input as an example:
cat enderr.f90
program test
character(len=10) :: str
str = '123'
read( str, *, end=10 ) i,x
10 continue
print*,i, x
end program test
gfortran -fdump-tree-original gives the following with two garbage characters
right after the __st_parameter_dtquire as shown below:
MAIN__ ()
{
real4 x;
char str[1:10];
int4 i;
_gfortran_copy_string (10, &str, 3, "123");
{
struct __st_parameter_dtquireZ dt_parm.0;
dt_parm.0.common.filename = "enderr.f90";
dt_parm.0.common.line = 4;
dt_parm.0.internal_unit = &str;
dt_parm.0.internal_unit_len = 10;
dt_parm.0.internal_unit_desc = 0B;
dt_parm.0.common.unit = 0;
dt_parm.0.common.flags = 16520;
_gfortran_st_read (&dt_parm.0);
_gfortran_transfer_integer (&dt_parm.0, &i, 4);
_gfortran_transfer_real (&dt_parm.0, &x, 4);
_gfortran_st_read_done (&dt_parm.0);
switch (dt_parm.0.common.flags & 3)
{
case 2:;
goto __label_000010;
}
}
--- snip ---
--
Summary: Garbage in output of -fdump-tree-original
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: jvdelisle at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25587
