[Bug bootstrap/17663] New: Ada: dwarf2out.c ICE in stage2

[laurent at guerby dot net]

stage1/xgcc -Bstage1/
-B/home/guerby/work/gcc/install/install-20040924T203642/i686-pc-linux-gnu/bin/
-c -O2 -g -fomit-frame-pointer      -gnatpg -gnata -I- -I. -Iada
-I/home/guerby/work/gcc/version-head/gcc/ada
/home/guerby/work/gcc/version-head/gcc/ada/cstand.adb -o ada/cstand.o
+===========================GNAT BUG DETECTED==============================+
| 4.0.0 20040924 (experimental) (i686-pc-linux-gnu) GCC error:             |
| in output_die, at dwarf2out.c:6921                                       |
| Error detected at cstand.adb:1827:1                                      |

Last successful bootstrap was (-fno-ivopts):
LAST_UPDATED: Wed Sep 22 19:00:54 UTC 2004

First failed bootstrap with this ICE I got:
LAST_UPDATED: Thu Sep 23 21:03:59 UTC 2004

I tried backing out the 20040923 Ada change, but it didn't
change anything so this is not the source of the problem.

It also happens on x86_64. 

Backtrace:

Breakpoint 1, fancy_abort (file=0x87f2590
"/home/guerby/work/gcc/version-head/gcc/dwarf2out.c", line=6921,
function=0x87f545b "output_die")
    at /home/guerby/work/gcc/version-head/gcc/diagnostic.c:591
591       internal_error ("in %s, at %s:%d", function, trim_filename (file), line);
(gdb) bt
#0  fancy_abort (file=0x87f2590
"/home/guerby/work/gcc/version-head/gcc/dwarf2out.c", line=6921,
function=0x87f545b "output_die")
    at /home/guerby/work/gcc/version-head/gcc/diagnostic.c:591
During symbol reading, Incomplete CFI data; unspecified registers at 0x08408637.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08408637.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08408637.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08408637.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08408637.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08408637.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08408637.
#1  0x08417234 in output_die (die=0x40df023c) at
/home/guerby/work/gcc/version-head/gcc/dwarf2out.c:6921
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417242.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417242.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417242.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417242.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417242.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417242.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417242.
#2  0x0841737f in output_die (die=0x40024104) at
/home/guerby/work/gcc/version-head/gcc/dwarf2out.c:6960
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417334.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417334.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417334.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417334.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417334.
During symbol reading, Incomplete CFI data; unspecified registers at 0x08417334.
#3  0x084174e3 in output_comp_unit (die=0x40024104, output_if_empty=0) at
/home/guerby/work/gcc/version-head/gcc/dwarf2out.c:7026
#4  0x084254c6 in dwarf2out_finish (filename=0xbffff2d7 "ada/cstand.o") at
/home/guerby/work/gcc/version-head/gcc/dwarf2out.c:13657
#5  0x0867dc2a in compile_file () at
/home/guerby/work/gcc/version-head/gcc/toplev.c:1025
#6  0x0867f55e in do_compile () at
/home/guerby/work/gcc/version-head/gcc/toplev.c:2079
#7  0x0867f5c5 in toplev_main (argc=19, argv=0xbfffefd4) at
/home/guerby/work/gcc/version-head/gcc/toplev.c:2111
#8  0x082cf5ca in main (argc=19, argv=0xbfffefd4) at
/home/guerby/work/gcc/version-head/gcc/main.c:35

-- 
           Summary: Ada: dwarf2out.c ICE in stage2
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: laurent at guerby dot net
                CC: gcc-bugs at gcc dot gnu dot org,laurent at guerby dot
                    net
  GCC host triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17663