[Bug bootstrap/46050] New: gcc/c-parser.c fails to build with -O2 -finline-functions

[baryluk at smp dot if.uj.edu.pl]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46050

           Summary: gcc/c-parser.c fails to build with -O2
                    -finline-functions
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: baryluk@smp.if.uj.edu.pl


gcc-4.6-20101009 snapshot. I think it was working in previous snapshot (there
were other errors, but this no). With only -O2 build is ok. So inlineing is a
problem?



root@tytus:/scratch/obiekty# export FLAGS="-O2 -finline-functions"
root@tytus:/scratch/obiekty# export CFLAGS=$FLAGS
root@tytus:/scratch/obiekty# export CXXFLAGS=$FLAGS
root@tytus:/scratch/obiekty#  /scratch/gcc-4.6-20101009/configure \
    --enable-languages=c,c++,java \
    --enable-checking=yes \
    CFLAGS="$CFLAGS" CXXFLAGS="$CXXFLAGS"
root@tytus:/scratch/obiekty# make "BOOT_CFLAGS=$CFLAGS" bootstrap


...

/scratch/obiekty/./prev-gcc/xgcc -B/scratch/obiekty/./prev-gcc/
-B/usr/local/i686-pc-linux-gnu/bin/ -B/usr/local/i686-pc-linux-gnu/bin/
-B/usr/local/i686-pc-linux-gnu/lib/ -isystem
/usr/local/i686-pc-linux-gnu/include -isystem
/usr/local/i686-pc-linux-gnu/sys-include    -c  -DIN_GCC_FRONTEND -O2
-finline-functions -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 -fno-common  -DHAVE_CONFIG_H -I. -I.
-I/scratch/gcc-4.6-20101009/gcc -I/scratch/gcc-4.6-20101009/gcc/.
-I/scratch/gcc-4.6-20101009/gcc/../include
-I/scratch/gcc-4.6-20101009/gcc/../libcpp/include 
-I/scratch/gcc-4.6-20101009/gcc/../libdecnumber
-I/scratch/gcc-4.6-20101009/gcc/../libdecnumber/bid -I../libdecnumber 
-DCLOOG_PPL_BACKEND  -I/usr/include/libelf 
/scratch/gcc-4.6-20101009/gcc/c-parser.c -o c-parser.o
/scratch/gcc-4.6-20101009/gcc/c-parser.c: In function
‘c_parser_statement_after_labels’:
/scratch/gcc-4.6-20101009/gcc/c-parser.c:4672:19: error: ‘incr’ may be used
uninitialized in this function [-Werror=uninitialized]
/scratch/gcc-4.6-20101009/gcc/c-parser.c:4525:21: note: ‘incr’ was declared
here
cc1: all warnings being treated as errors

make[3]: *** [c-parser.o] Błąd 1
make[3]: Opuszczenie katalogu `/scratch/obiekty/gcc'
make[2]: *** [all-stage2-gcc] Błąd 2
make[2]: Opuszczenie katalogu `/scratch/obiekty'
make[1]: *** [stage2-bubble] Błąd 2
make[1]: Opuszczenie katalogu `/scratch/obiekty'
make: *** [bootstrap] Błąd 2
root@tytus:/scratch/obiekty#


Thanks.