[Bug ada/91324] New: tree check: expected type_decl, have ggc_freed in debug_flush_symbol_queue, at dbxout.c:1481

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91324

            Bug ID: 91324
           Summary: tree check: expected type_decl, have ggc_freed in
                    debug_flush_symbol_queue, at dbxout.c:1481
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ada
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
  Target Milestone: ---
              Host: hppa2.0w-hp-hpux11.11
            Target: hppa2.0w-hp-hpux11.11
             Build: hppa2.0w-hp-hpux11.11

In stage3:

/test/gnu/gcc/objdir/./prev-gcc/xgcc -B/test/gnu/gcc/objdir/./prev-gcc/
-B/opt/g
nu/gcc/gcc-10/hppa2.0w-hp-hpux11.11/bin/
-B/opt/gnu/gcc/gcc-10/hppa2.0w-hp-hpux1
1.11/bin/ -B/opt/gnu/gcc/gcc-10/hppa2.0w-hp-hpux11.11/lib/ -isystem
/opt/gnu/gcc
/gcc-10/hppa2.0w-hp-hpux11.11/include -isystem
/opt/gnu/gcc/gcc-10/hppa2.0w-hp-h
pux11.11/sys-include   -fchecking=1 -c -g -O2 -fchecking=1 -mdisable-indexing
-g
natpg -gnata -W -Wall -nostdinc -I- -I. -Iada/generated -Iada
-I../../gcc/gcc/ad
a -I../../gcc/gcc/ada/gcc-interface -Iada/libgnat -I../../gcc/gcc/ada/libgnat
..
/../gcc/gcc/ada/exp_fixd.adb -o ada/exp_fixd.o
+===========================GNAT BUG DETECTED==============================+
| 10.0.0 20190731 (experimental) [trunk revision 273939]
(hppa2.0w-hp-hpux11.11)
 GCC error:|
| tree check: expected type_decl, have ggc_freed in                        |
|     debug_flush_symbol_queue, at dbxout.c:1481                           |
| Error detected around ../../gcc/gcc/ada/exp_dist.adb:11185:11            |
| Please submit a bug report; see https://gcc.gnu.org/bugs/ .              |
| Use a subject line meaningful to you and us to track the bug.            |
| Include the entire contents of this bug box in the report.               |
| Include the exact command that you entered.                              |
| Also include sources listed below.                                       |
+==========================================================================+

Please include these source files with error report
Note that list may not be accurate in some cases,
so please double check that the problem can still
be reproduced with the set of files listed.
Consider also -gnatd.n switch (see debug.adb).

../../gcc/gcc/ada/libgnat/system.ads
../../gcc/gcc/ada/exp_dist.adb
../../gcc/gcc/ada/exp_dist.ads
../../gcc/gcc/ada/namet.ads
../../gcc/gcc/ada/alloc.ads
../../gcc/gcc/ada/hostparm.ads
../../gcc/gcc/ada/types.ads
../../gcc/gcc/ada/libgnat/unchconv.ads
../../gcc/gcc/ada/libgnat/unchdeal.ads
../../gcc/gcc/ada/table.ads
ada/snames.ads
../../gcc/gcc/ada/atree.ads
../../gcc/gcc/ada/sinfo.ads
../../gcc/gcc/ada/uintp.ads
../../gcc/gcc/ada/urealp.ads
../../gcc/gcc/ada/einfo.ads
../../gcc/gcc/ada/elists.ads
../../gcc/gcc/ada/exp_atag.ads
../../gcc/gcc/ada/exp_strm.ads
../../gcc/gcc/ada/exp_tss.ads
../../gcc/gcc/ada/exp_util.ads
../../gcc/gcc/ada/rtsfind.ads
../../gcc/gcc/ada/lib.ads
../../gcc/gcc/ada/nlists.ads
ada/nmake.ads
../../gcc/gcc/ada/opt.ads
../../gcc/gcc/ada/libgnat/s-string.ads
../../gcc/gcc/ada/libgnat/ada.ads
../../gcc/gcc/ada/libgnat/a-uncdea.ads
../../gcc/gcc/ada/libgnat/s-wchcon.ads
../../gcc/gcc/ada/sem.ads
../../gcc/gcc/ada/sem_aux.ads
../../gcc/gcc/ada/sem_cat.ads
../../gcc/gcc/ada/sem_ch3.ads
../../gcc/gcc/ada/sem_ch8.ads
../../gcc/gcc/ada/sem_ch12.ads
../../gcc/gcc/ada/inline.ads
../../gcc/gcc/ada/warnsw.ads
../../gcc/gcc/ada/sem_dist.ads
../../gcc/gcc/ada/sem_eval.ads
../../gcc/gcc/ada/sem_util.ads
../../gcc/gcc/ada/stand.ads
../../gcc/gcc/ada/stringt.ads
../../gcc/gcc/ada/tbuild.ads
../../gcc/gcc/ada/ttypes.ads
../../gcc/gcc/ada/get_targ.ads
../../gcc/gcc/ada/set_targ.ads
../../gcc/gcc/ada/libgnat/gnat.ads
../../gcc/gcc/ada/libgnat/g-htable.ads
../../gcc/gcc/ada/libgnat/s-htable.ads
../../gcc/gcc/ada/libgnat/s-exctab.ads
../../gcc/gcc/ada/libgnat/s-stalib.ads
../../gcc/gcc/ada/libgnat/a-unccon.ads
../../gcc/gcc/ada/libgnat/s-unstyp.ads
../../gcc/gcc/ada/libgnat/s-conca2.ads
../../gcc/gcc/ada/libgnat/s-assert.ads
../../gcc/gcc/ada/libgnat/s-secsta.ads
../../gcc/gcc/ada/libgnat/s-parame.ads
../../gcc/gcc/ada/libgnat/s-stoele.ads
../../gcc/gcc/ada/libgnat/s-htable.adb
../../gcc/gcc/ada/libgnat/s-strhas.ads


raised TYPES.UNRECOVERABLE_ERROR : comperr.adb:407
mkdir -p ada/
/test/gnu/gcc/objdir/./prev-gcc/xgcc -B/test/gnu/gcc/objdir/./prev-gcc/
-B/opt/gnu/gcc/gcc-10/hppa2.0w-hp-hpux11.11/bin/
-B/opt/gnu/gcc/gcc-10/hppa2.0w-hp-hpux11.11/bin/
-B/opt/gnu/gcc/gcc-10/hppa2.0w-hp-hpux11.11/lib/ -isystem
/opt/gnu/gcc/gcc-10/hppa2.0w-hp-hpux11.11/include -isystem
/opt/gnu/gcc/gcc-10/hppa2.0w-hp-hpux11.11/sys-include   -fchecking=1 -c -g -O2
-fchecking=1 -mdisable-indexing -gnatpg -gnata -W -Wall -nostdinc -I- -I.
-Iada/generated -Iada -I../../gcc/gcc/ada -I../../gcc/gcc/ada/gcc-interface
-Iada/libgnat -I../../gcc/gcc/ada/libgnat ../../gcc/gcc/ada/exp_imgv.adb -o
ada/exp_imgv.o
../../gcc/gcc/ada/gcc-interface/Make-lang.in:139: recipe for target
'ada/exp_dist.o' failed
make[3]: *** [ada/exp_dist.o] Error 1