On 07/11/2011 09:33 AM, Jakub Jelinek wrote: > PR debug/49676 > * dwarf2out.c (int_shift_loc_descriptor): New function. > (int_loc_descriptor): If shorter, emit i as > (i >> shift), shift, DW_OP_shl for suitable shift value. > Similarly, try to optimize large negative values using > DW_OP_neg of a positive value if shorter. > (size_of_int_shift_loc_descriptor): New function. > (size_of_int_loc_descriptor): Adjust to match int_loc_descriptor > changes. > (mem_loc_descriptor) <case CONST_INT>: Emit zero-extended constants > that fit into DWARF2_ADDR_SIZE bytes as int_loc_descriptor + > DW_OP_GNU_convert instead of DW_OP_GNU_const_type if the former > is shorter. > (resolve_addr_in_expr): Optimize DW_OP_plus_uconst with a large > addend as added DW_OP_plus if it is shorter.
Ok. r~
