https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114077
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- #5 0x000000000110cb3f in simplify_const_unary_operation (code=ZERO_EXTEND, mode=E_DImode, op=0x7ffff76e0440, op_mode=E_SImode) at ../../gcc/simplify-rtx.cc:2131 2131 result = wide_int::from (op0, width, UNSIGNED); (gdb) p op0 $1 = {<std::__pair_base<rtx_def*, machine_mode>> = {<No data fields>}, first = 0x7ffff76e0440, second = E_SImode} (gdb) p width | $2 = 64 (gdb) p op0.first | $3 = (rtx_def *) 0x7ffff76e0440 (gdb) p debug_rtx(op0.first) (const_int -2400000008 [0xffffffff70f2e7f8]) $4 = void