http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49676
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-07-11 16:57:29 UTC --- Author: jakub Date: Mon Jul 11 16:57:25 2011 New Revision: 176167 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176167 Log: 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. * gcc.dg/guality/csttest.c: New test. Added: trunk/gcc/testsuite/gcc.dg/guality/csttest.c Modified: trunk/gcc/ChangeLog trunk/gcc/dwarf2out.c trunk/gcc/testsuite/ChangeLog
