[Bug debug/50006] [4.7 Regression] ICE in in connect_traces, at dwarf2cfi.c:2677

[danglin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50006

--- Comment #10 from John David Anglin <danglin at gcc dot gnu.org> 2011-08-13 21:35:34 UTC ---
Unfortunately, the proposed patch isn't sufficient.  We hit another
similar ICE a little later in the build:

../../xgcc -B../../ -c -g -O2 -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmis
sing-prototypes -mdisable-indexing -gnatpg -gnata -I- -I../rts -I.
-I/test/gnu/g
cc/gcc/gcc/ada /test/gnu/gcc/gcc/gcc/ada/prj-proc.adb -o prj-proc.o
+===========================GNAT BUG DETECTED==============================+
| 4.7.0 20110813 (experimental) [trunk revision 177733] (hppa2.0w-hp-hpux11.11) 
GCC error:|
| in connect_traces, at dwarf2cfi.c:2677                                   |
| Error detected around /test/gnu/gcc/gcc/gcc/ada/prj-proc.adb:1252:8      |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
| 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 gcc or gnatmake command that you entered.              |
| Also include sources listed below in gnatchop format                     |
| (concatenated together with no headers between files).                   |
+==========================================================================+

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).

../rts/system.ads
/test/gnu/gcc/gcc/gcc/ada/prj-proc.adb
/test/gnu/gcc/gcc/gcc/ada/prj-proc.ads
/test/gnu/gcc/gcc/gcc/ada/prj.ads
/test/gnu/gcc/gcc/gcc/ada/casing.ads
/test/gnu/gcc/gcc/gcc/ada/types.ads
../rts/unchconv.ads
../rts/unchdeal.ads
/test/gnu/gcc/gcc/gcc/ada/namet.ads
/test/gnu/gcc/gcc/gcc/ada/alloc.ads
/test/gnu/gcc/gcc/gcc/ada/table.ads
/test/gnu/gcc/gcc/gcc/ada/hostparm.ads
/test/gnu/gcc/gcc/gcc/ada/osint.ads
../rts/s-os_lib.ads
../rts/s-string.ads
../rts/ada.ads
../rts/a-uncdea.ads
../rts/s-stoele.ads
/test/gnu/gcc/gcc/gcc/ada/scans.ads
/test/gnu/gcc/gcc/gcc/ada/uintp.ads
/test/gnu/gcc/gcc/gcc/ada/urealp.ads
../rts/gnat.ads
../rts/g-dynhta.ads
../rts/g-dyntab.ads
../rts/g-os_lib.ads
/test/gnu/gcc/gcc/gcc/ada/prj-tree.ads
/test/gnu/gcc/gcc/gcc/ada/prj-attr.ads
../rts/g-string.ads
/test/gnu/gcc/gcc/gcc/ada/prj-env.ads
/test/gnu/gcc/gcc/gcc/ada/prj-ext.ads
/test/gnu/gcc/gcc/gcc/ada/err_vars.ads
/test/gnu/gcc/gcc/gcc/ada/opt.ads
../rts/s-wchcon.ads
/test/gnu/gcc/gcc/gcc/ada/output.ads
/test/gnu/gcc/gcc/gcc/ada/prj-err.ads
/test/gnu/gcc/gcc/gcc/ada/scng.ads
/test/gnu/gcc/gcc/gcc/ada/styleg.ads
/test/gnu/gcc/gcc/gcc/ada/errutil.ads
/test/gnu/gcc/gcc/gcc/ada/prj-nmsc.ads
/test/gnu/gcc/gcc/gcc/ada/prj-part.ads
./snames.ads
../rts/a-string.ads
../rts/a-strfix.ads
../rts/a-strmap.ads
../rts/a-charac.ads
../rts/a-chlat1.ads
../rts/g-casuti.ads
../rts/s-casuti.ads
../rts/g-htable.ads
../rts/s-htable.ads
../rts/s-exctab.ads
../rts/s-stalib.ads
../rts/a-unccon.ads
../rts/s-unstyp.ads
../rts/s-stoele.adb
../rts/a-fihema.ads
../rts/a-finali.ads
../rts/s-finroo.ads
../rts/a-stream.ads
../rts/s-stopoo.ads
../rts/a-tags.ads
../rts/s-soflin.ads
../rts/a-except.ads
../rts/s-parame.ads
../rts/s-traent.ads
../rts/s-stache.ads
../rts/s-secsta.ads
../rts/s-pooglo.ads
../rts/s-assert.ads
../rts/s-imenne.ads
../rts/s-imgboo.ads
../rts/s-htable.adb
../rts/s-strhas.ads


raised TYPES.UNRECOVERABLE_ERROR : comperr.adb:423
make[3]: *** [prj-proc.o] Error 1
make[3]: Leaving directory `/test/gnu/gcc/objdir/gcc/ada/tools'
make[2]: *** [gnattools-native] Error 2
make[2]: Leaving directory `/test/gnu/gcc/objdir/gnattools'
make[1]: *** [all-gnattools] Error 2
make[1]: *** Waiting for unfinished jobs....