https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66920
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-07-20
Component|middle-end |debug
Ever confirmed|0 |1
Known to fail| |6.0
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Confirmed with current mainline [trunk revision 225993]:
-
~/gcc-build/gcc/cc1plus -m32 -O1 -gdwarf-4 -mno-sse pr66920.C
#2 0x0000000000a5b1e0 in expand_debug_locations () at
/home/uros/gcc-svn/trunk/gcc/cfgexpand.c:4992
#3 0x0000000000a5c028 in (anonymous namespace)::pass_expand::execute
(this=0x25c4080, fun=0x2aaaae9519d8) at
/home/uros/gcc-svn/trunk/gcc/cfgexpand.c:6026
#4 0x0000000000f3c7c4 in execute_one_pass (pass=0x25c4080) at
/home/uros/gcc-svn/trunk/gcc/passes.c:2319
(gdb) f 2
#2 0x0000000000a5b1e0 in expand_debug_locations () at
/home/uros/gcc-svn/trunk/gcc/cfgexpand.c:4992
4992 gcc_assert (mode == GET_MODE (val)
(gdb) list
4987 val = gen_rtx_UNKNOWN_VAR_LOC ();
4988 else
4989 {
4990 mode = GET_MODE (INSN_VAR_LOCATION (insn));
4991
4992 gcc_assert (mode == GET_MODE (val)
4993 || (GET_MODE (val) == VOIDmode
4994 && (CONST_SCALAR_INT_P (val)
4995 || GET_CODE (val) == CONST_FIXED
4996 || GET_CODE (val) == LABEL_REF)));
(gdb) p debug_rtx (val)
(concatn:V4SI [
(const_int 0 [0])
(const_int 0 [0])
(const_int 0 [0])
(const_int 0 [0])
])
$3 = void
(gdb) p debug_rtx (insn)
(debug_insn 28 27 29 2 (var_location:BLK v2di (simple_return:CC)) pr66920.C:16
-1
(nil))
$4 = void
