[Bug fortran/49901] New: gfortran.dg/debug/[pr35154-dwarf2.f/pr37738.f] failures on darwin

["howarth at nitro dot med.uc.edu" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49901

           Summary: gfortran.dg/debug/[pr35154-dwarf2.f/pr37738.f]
                    failures on darwin
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: howarth@nitro.med.uc.edu


The new failures...

FAIL: gfortran.dg/debug/pr35154-dwarf2.f -gdwarf-2 -g3 (internal compiler
error)
FAIL: gfortran.dg/debug/pr35154-dwarf2.f -gdwarf-2 -g3 (test for excess errors)
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
DIE[^\\n]*DW_TAG_common_block
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler (DW_AT_name:
"__BLNK__"|"__BLNK__[^\\n]*"[^\\n]*DW_AT_name)
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
DIE[^\\n]*DW_TAG_variable
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
"i[^\\n]*"[^\\n]*DW_AT_name
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
"j[^\\n]*"[^\\n]*DW_AT_name
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
DIE[^\\n]*DW_TAG_common_block
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler (DW_AT_name:
"label"|"label[^\\n]*"[^\\n]*DW_AT_name)
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
DIE[^\\n]*DW_TAG_variable
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
"l[^\\n]*"[^\\n]*DW_AT_name
UNRESOLVED: gfortran.dg/debug/pr35154-dwarf2.f scan-assembler
"m[^\\n]*"[^\\n]*DW_AT_name
FAIL: gfortran.dg/debug/pr37738.f -gdwarf-2 -g3 (internal compiler error)
FAIL: gfortran.dg/debug/pr37738.f -gdwarf-2 -g3 (test for excess errors)
UNRESOLVED: gfortran.dg/debug/pr37738.f scan-assembler-times
DIE[^\\n]*DW_TAG_common_block 3

appear in the regress server logs for powerpc-apple-darwin after revision
176629 but before or on revision 176671. I suspect this could be failout
from...

Author: jakub
Date: Fri Jul 22 20:06:09 2011
New Revision: 176653

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176653
Log:
    * dwarf2.h (DW_AT_GNU_macros): New.
    (enum dwarf_macro_record_type): New enum.  Add DW_MACRO_GNU_*.

    * dwarf2out.c (struct macinfo_struct): Change code to unsigned char.
    (DEBUG_MACRO_SECTION, DEBUG_MACRO_SECTION_LABEL): Define.
    (dwarf_attr_name): Handle DW_AT_GNU_macros.
    (dwarf2out_define): If the vector is empty and
    lineno is 0, emit a dummy entry first.
    (dwarf2out_undef): Likewise.  Remove redundant semicolon.
    (htab_macinfo_hash, htab_macinfo_eq, output_macinfo_op,
    optimize_macinfo_range): New functions.
    (output_macinfo): Use them.  If !dwarf_strict and .debug_str is
    mergeable, optimize longer strings using
    DW_MACRO_GNU_{define,undef}_indirect and if HAVE_COMDAT_GROUP,
    optimize longer sequences of define/undef ops from headers
    using DW_MACRO_GNU_transparent_include.  For !dwarf_strict
    emit a section headers.
    (dwarf2out_init): For !dwarf_strict set debug_macinfo_section
    and macinfo_section_label to DEBUG_MACRO_SECTION
    resp. DEBUG_MACRO_SECTION_LABEL.
    (dwarf2out_finish): For !dwarf_strict emit DW_AT_GNU_macros
    instead of DW_AT_macro_info.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/dwarf2out.c
    trunk/include/ChangeLog
    trunk/include/dwarf2.h

The failure is also observed on x86_64-apple-darwin11.