[Bug debug/51902] lexical_blocks inside inlined_subroutines generate duplicate debug_ranges

["mark at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51902

Mark Wielaard <mark at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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  Attachment #26380|0                           |1
        is obsolete|                            |

--- Comment #6 from Mark Wielaard <mark at gcc dot gnu.org> 2012-01-21 00:33:03 UTC ---
Created attachment 26399
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26399
debug_ranges.c - Get some statistics on .debug_ranges section.

Here is a slightly tweaked version of debug_ranges.c that also recognizes
nested lexical_blocks and will print which dies/ranges it finds that are equal,
but are at different range offsets.

die [ed] and [d3] use range [40] and [0], 6 equal addresses.
die [100] and [ed] use range [80] and [40], 6 equal addresses.
die [10c] and [100] use range [c0] and [80], 6 equal addresses.
die [11f] and [10c] use range [100] and [c0], 6 equal addresses.
cus: 1
  subprograms: 2
    inlined_subroutines: 1
      lexical_blocks: 4
equal_ranges: 0
shared_addrs: 0
dup_ranges: 4
dup_addrs: 24