[Bug middle-end/54838] [4.8 Regression] ICE: in merge_latch_edges, at cfgloop.c:678 with -ftracer

[jakub at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54838

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-12-14 14:58:41 UTC ---
I see the same ICE also during bootstrap if ada/targparm.adb is built with
-fstack-protector (I have -fstack-protector in CFLAGS/CXXFLAGS/XCFLAGS/TCFLAGS
during configure among other things):

/home/jakub/rpmbuild/BUILD/gcc-4.8.0-20121213/obj-x86_64-redhat-linux/./prev-gcc/xgcc
-B/home/jakub/rpmbuild/BUILD/gcc-4.8.0-20121213/obj-x86_64-redhat-linux/./prev-gcc/
-isystem /usr/x86_64-redhat-linux/include -isystem
/usr/x86_64-redhat-linux/sys-include -c -O2 -fstack-protector  -gnatpg -gnata
-gnatwns -W -Wall -nostdinc -I- -I. -Iada -I../../gcc/ada
-I../../gcc/ada/gcc-interface ../../gcc/ada/targparm.adb -o ada/targparm.o
+===========================GNAT BUG DETECTED==============================+
| 4.8.0 20121213 (Red Hat 4.8.0-0.1) (x86_64-redhat-linux) GCC error:      |
| in merge_latch_edges, at cfgloop.c:678                                   |
| Error detected around ../../gcc/ada/targparm.adb:649:8                   |
| Please submit a bug report; see http://gcc.gnu.org/bugs.html.            |
...