https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62208
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-08-26
CC| |rsandifo at gcc dot gnu.org
Summary|ICE with LTO on valid code |ICE with -fwhole-program on
|at -O3 on x86_64-linux-gnu |valid code at -O3 on
|in trunc_int_for_mode, at |x86_64-linux-gnu in
|explow.c:56 |trunc_int_for_mode, at
| |explow.c:56
Ever confirmed|0 |1
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
As it's a single file, does it reproduce with -fwhole-program instead of -flto?
Still can't reproduce in my dev tree (but as usual this may have too many
patches...). Confirmed on match-and-simplify branch with -fwhole-program.
Needs -march=x86-64 as well.
55 /* You want to truncate to a _what_? */
56 gcc_assert (SCALAR_INT_MODE_P (mode));
(gdb) p mode
$1 = V4SImode
#4 0x0000000000c1683e in simplify_const_unary_operation (code=NOT,
mode=V4SImode, op=0x7ffff66ca470, op_mode=V4SImode)
at /space/rguenther/src/svn/match-and-simplify/gcc/simplify-rtx.c:1735
1735 return immed_wide_int_const (result, mode);
Likely caused by the wide-int merge. Richard?
