[Bug debug/48853] [4.7 Regression] Wrong DWARF codegen when Pmode != ptr_mode

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48853

--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-05 15:48:22 UTC ---
Author: jakub
Date: Thu May  5 15:48:18 2011
New Revision: 173436

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173436
Log:
    PR debug/48853
    * dwarf2out.c (mem_loc_descriptor) <case SUBREG>: Pass mem_mode
    instead of mode as 3rd argument to recursive call.
    (mem_loc_descriptor) <case REG>: If POINTERS_EXTEND_UNSIGNED, don't
    emit DW_OP_GNU_regval_type if mode is Pmode and mem_mode is not
    VOIDmode.
    (mem_loc_descriptor) <case SYMBOL_REF>: If POINTERS_EXTEND_UNSIGNED,
    don't give up if mode is Pmode and mem_mode is not VOIDmode.
    (mem_loc_descriptor) <case CONST_INT>: If POINTERS_EXTEND_UNSIGNED,
    use int_loc_descriptor if mode is Pmode and mem_mode is not VOIDmode.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c