http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55021
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> 2012-10-22
14:05:36 UTC ---
Confirmed. Note that due to a Frontend issue (wrong decls for check_i8?)
without LTO no inlining takes place. As soon as we inline we have
_gfortran_set_options (7, &options.0[0]);
_10 = 0xffffffff00000000565d7b7b;
_7 = _10;
_8 = -3784425932234851461;
if (_7 != _8)
goto <bb 3>;
from
D.1880 = -3784425932234851461;
check_i8 (&D.1880, &C.1881);
With the simplified
subroutine check_i8 (a, b)
integer(kind=8), intent(in) :: a, b
if (a /= b) call abort()
end subroutine check_i8
program test
implicit none
integer(kind=8) :: i8
i8 = 3_8
call check_i8(i8**43_8,3_8**43_8)
end program test
I can get non-LTO to inline check_i8 with -fwhole-prgram.
I think your bisection is wrong and
2012-10-18 Richard Guenther <rguent...@suse.de>
* lto-streamer.h (enum LTO_tags): Add LTO_integer_cst.
* lto-streamer-in.c (lto_input_tree): Use it.
* lto-streamer-out.c (lto_output_tree): Likewise, for
!TREE_OVERFLOW integer constants only.
* tree-streamer-in.c (unpack_ts_int_cst_value_fields): New function.
(unpack_value_fields): Call it.
(streamer_read_integer_cst): Simplify.
* tree-streamer-out.c (pack_ts_int_cst_value_fields): New function.
(streamer_pack_tree_bitfields): Call it.
(streamer_write_integer_cst): Adjust.
must be the issue. Very likely we have an INTEGER_CST with TREE_OVERFLOW
flag set.
