https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64246
Bug ID: 64246
Summary: [5 Regression] ICE building libada for Windows due to
NULL loop header
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: matt at gwalski dot com
CC: rguenther at suse dot de
Host: x86_64-linux-gnu
Target: i686-w64-mingw32
Build: x86_64-linux-gnu
Attempting to build trunk SVN version 218496 supporting C,C++, and Ada fails
with the following:
/home/matt/buildgcc/./gcc/xgcc -B/home/matt/buildgcc/./gcc/
-L/usr/local/i686-w64-mingw32/lib -L/usr/local/mingw/lib -isystem
/usr/local/i686-w64-mingw32/include -isystem /usr/local/mingw/include
-B/usr/local/i686-w64-mingw32/bin/ -B/usr/local/i686-w64-mingw32/lib/ -isystem
/usr/local/i686-w64-mingw32/include -isystem
/usr/local/i686-w64-mingw32/sys-include -c -g -O2 -W -Wall -gnatpg
-nostdinc g-awk.adb -o g-awk.o
+===========================GNAT BUG DETECTED==============================+
| 5.0.0 20141208 (experimental) (i686-w64-mingw32) GCC error: |
| in fix_loop_structure, at loop-init.c:263 |
| Error detected around g-awk.adb:727:8 |
| 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 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).
system.ads
g-awk.adb
g-awk.ads
gnat.ads
ada.ads
a-finali.ads
s-finroo.ads
g-regpat.ads
s-regpat.ads
a-except.ads
s-parame.ads
s-stalib.ads
a-unccon.ads
s-traent.ads
a-textio.ads
a-ioexce.ads
a-stream.ads
s-ficobl.ads
interfac.ads
i-cstrea.ads
s-crtl.ads
s-wchcon.ads
a-string.ads
a-strunb.ads
a-strmap.ads
a-charac.ads
a-chlat1.ads
s-atocou.ads
a-strfix.ads
a-uncdea.ads
g-dirope.ads
g-dyntab.ads
g-os_lib.ads
s-os_lib.ads
s-string.ads
s-exctab.ads
a-tags.ads
s-stoele.ads
s-soflin.ads
s-stache.ads
s-finmas.ads
s-stopoo.ads
s-pooglo.ads
s-unstyp.ads
s-stratt.ads
s-secsta.ads
s-stposu.ads
s-ststop.ads
s-imgint.ads
s-valint.ads
s-valrea.ads
g-dyntab.adb
g-hesorg.ads
s-memory.ads
g-hesorg.adb
s-stoele.adb
raised TYPES.UNRECOVERABLE_ERROR : comperr.adb:423
make[4]: *** [g-awk.o] Error 1
It's hitting an assert added in r214957/r215012.
I've been able to bootstrap a x86_64-linux-gnu Ada compiler fine with a
revision that fails for i686-w64-mingw32.
I believe I'm also seeing the error building a native i686-w64-mingw32
(bootstrap or no bootstrap) Ada compiler.
Configuration options:
configure --build=x86_64-linux-gnu --enable-shared --enable-static
--disable-multilib --enable-threads=posix --enable-fully-dynamic-string
--enable-sjlj-exceptions --enable-libgomp --enable-languages=c,c++,ada,lto
--target=i686-w64-mingw32 --host=x86_64-linux-gnu
