[Bug bootstrap/48669] New: sel_sched_region_2's "need_stall" vs. -Werror=uninitialized

["bkoz at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48669

           Summary: sel_sched_region_2's "need_stall" vs.
                    -Werror=uninitialized
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: bkoz@gcc.gnu.org


More bootstrap breakage on x86_64/linux with --enable-checking=release

Updating f120c9d..29fd790..

/mnt/share/bld/gcc.git-trunk/./prev-gcc/xgcc
-B/mnt/share/bld/gcc.git-trunk/./prev-gcc/
-B/mnt/share/bin/H-x86_64-gcc-trunk/x86_64-unknown-linux-gnu/bin/
-B/mnt/share/bin/H-x86_64-gcc-trunk/x86_64-unknown-linux-gnu/bin/
-B/mnt/share/bin/H-x86_64-gcc-trunk/x86_64-unknown-linux-gnu/lib/ -isystem
/mnt/share/bin/H-x86_64-gcc-trunk/x86_64-unknown-linux-gnu/include -isystem
/mnt/share/bin/H-x86_64-gcc-trunk/x86_64-unknown-linux-gnu/sys-include    -c  
-g -O2 -gtoggle -DIN_GCC   -W -Wall -Wwrite-strings -Wcast-qual
-Wstrict-prototypes -Wmissing-prototypes -Wmissing-format-attribute -pedantic
-Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror
-Wold-style-definition -Wc++-compat   -DHAVE_CONFIG_H -I. -I.
-I/mnt/share/src/gcc.git-trunk/gcc -I/mnt/share/src/gcc.git-trunk/gcc/.
-I/mnt/share/src/gcc.git-trunk/gcc/../include
-I/mnt/share/src/gcc.git-trunk/gcc/../libcpp/include 
-I/mnt/share/src/gcc.git-trunk/gcc/../libdecnumber
-I/mnt/share/src/gcc.git-trunk/gcc/../libdecnumber/bid -I../libdecnumber   
/mnt/share/src/gcc.git-trunk/gcc/sreal.c -o sreal.o
/mnt/share/src/gcc.git-trunk/gcc/sel-sched.c: In function âsel_sched_region_2â:
/mnt/share/src/gcc.git-trunk/gcc/sel-sched.c:3723:7: error: âneed_stallâ may be
used uninitialized in this function [-Werror=uninitialized]
/mnt/share/src/gcc.git-trunk/gcc/sel-sched.c:5520:11: note: âneed_stallâ was
declared here
cc1: all warnings being treated as errors

make[3]: *** [sel-sched.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm cpp.pod gcov.pod gcc.pod fsf-funding.pod gfdl.pod
make[3]: Leaving directory `/mnt/share/bld/gcc.git-trunk/gcc'
make[2]: *** [all-stage2-gcc] Error 2
make[2]: Leaving directory `/mnt/share/bld/gcc.git-trunk'
make[1]: *** [stage2-bubble] Error 2
make[1]: Leaving directory `/mnt/share/bld/gcc.git-trunk'
make: *** [bootstrap-lean] Error 2


HJ's tester showing no issue:
http://gcc.gnu.org/ml/gcc-testresults/2011-04/msg01675.html

So assuming this is another --enable-checking miss

-benjamin