[Bug middle-end/17342] New: Incorrect sharing of tree nodes

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

Building glibc I get:

/opt/gcc/3.5-devel/bin/gcc wgenops.c -c -std=gnu99 -O2 -Wall -Winline
-Wstrict-prototypes -Wwrite-strings -g   -fexceptions   -I../include -I.
-I/builds/glibc/3.5/libio -I.. -I../libio  -I/builds/glibc/3.5
-I../sysdeps/x86_64/elf -I../linuxthreads/sysdeps/unix/sysv/linux/x86_64
-I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread
-I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv
-I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/x86_64
-I../libidn/sysdeps/unix -I../sysdeps/unix/sysv/linux/x86_64
-I../sysdeps/unix/sysv/linux/wordsize-64 -I../sysdeps/unix/sysv/linux
-I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix/x86_64
-I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/x86_64/fpu -I../sysdeps/x86_64
-I../sysdeps/wordsize-64 -I../sysdeps/ieee754/ldbl-96
-I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754
-I../sysdeps/generic/elf -I../sysdeps/generic  -D_LIBC_REENTRANT -include
../include/libc-symbols.h       -D_IO_MTSAFE_IO -o
/builds/glibc/3.5/libio/wgenops.o -MD -MP -MF
/builds/glibc/3.5/libio/wgenops.o.dt -MT /builds/glibc/3.5/libio/wgenops.o -v
-save-temps
Reading specs from /opt/gcc/3.5-devel/lib/gcc/x86_64-suse-linux-gnu/3.5.0/specs
Configured with: /cvs/gcc/configure --prefix=/opt/gcc/3.5-devel --disable-nls
--enable-threads=posix --enable-clocale=gnu --enable-__cxa_atexit
--enable-shared --enable-languages=c,c++,treelang,java,f95,objc
--with-system-zlib x86_64-suse-linux-gnu
Thread model: posix
gcc version 3.5.0 20040906 (experimental)
 /opt/gcc/3.5-devel/libexec/gcc/x86_64-suse-linux-gnu/3.5.0/cc1 -E -quiet -v
-I../include -I. -I/builds/glibc/3.5/libio -I.. -I../libio -I/builds/glibc/3.5
-I../sysdeps/x86_64/elf -I../linuxthreads/sysdeps/unix/sysv/linux/x86_64
-I../linuxthreads/sysdeps/unix/sysv/linux -I../linuxthreads/sysdeps/pthread
-I../sysdeps/pthread -I../linuxthreads/sysdeps/unix/sysv
-I../linuxthreads/sysdeps/unix -I../linuxthreads/sysdeps/x86_64
-I../libidn/sysdeps/unix -I../sysdeps/unix/sysv/linux/x86_64
-I../sysdeps/unix/sysv/linux/wordsize-64 -I../sysdeps/unix/sysv/linux
-I../sysdeps/gnu -I../sysdeps/unix/common -I../sysdeps/unix/mman
-I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix/x86_64
-I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/x86_64/fpu -I../sysdeps/x86_64
-I../sysdeps/wordsize-64 -I../sysdeps/ieee754/ldbl-96
-I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754
-I../sysdeps/generic/elf -I../sysdeps/generic -MD
/builds/glibc/3.5/libio/wgenops.d -MF /builds/glibc/3.5/libio/wgenops.o.dt -MP
-MT /builds/glibc/3.5/libio/wgenops.o -MQ /builds/glibc/3.5/libio/wgenops.o
-D_LIBC_REENTRANT -D_IO_MTSAFE_IO -include ../include/libc-symbols.h wgenops.c
-mtune=k8 -std=gnu99 -Wall -Winline -Wstrict-prototypes -Wwrite-strings
-fexceptions -fworking-directory -O2 -fpch-preprocess -o wgenops.i
ignoring nonexistent directory
"/opt/gcc/3.5-devel/lib/gcc/x86_64-suse-linux-gnu/3.5.0/../../../../x86_64-suse-linux-gnu/include"
ignoring duplicate directory "../libio"
#include "..." search starts here:
#include <...> search starts here:
 ../include
 .
 /builds/glibc/3.5/libio
 ..
 /builds/glibc/3.5
 ../sysdeps/x86_64/elf
 ../linuxthreads/sysdeps/unix/sysv/linux/x86_64
 ../linuxthreads/sysdeps/unix/sysv/linux
 ../linuxthreads/sysdeps/pthread
 ../sysdeps/pthread
 ../linuxthreads/sysdeps/unix/sysv
 ../linuxthreads/sysdeps/unix
 ../linuxthreads/sysdeps/x86_64
 ../libidn/sysdeps/unix
 ../sysdeps/unix/sysv/linux/x86_64
 ../sysdeps/unix/sysv/linux/wordsize-64
 ../sysdeps/unix/sysv/linux
 ../sysdeps/gnu
 ../sysdeps/unix/common
 ../sysdeps/unix/mman
 ../sysdeps/unix/inet
 ../sysdeps/unix/sysv
 ../sysdeps/unix/x86_64
 ../sysdeps/unix
 ../sysdeps/posix
 ../sysdeps/x86_64/fpu
 ../sysdeps/x86_64
 ../sysdeps/wordsize-64
 ../sysdeps/ieee754/ldbl-96
 ../sysdeps/ieee754/dbl-64
 ../sysdeps/ieee754/flt-32
 ../sysdeps/ieee754
 ../sysdeps/generic/elf
 ../sysdeps/generic
 /usr/local/include
 /opt/gcc/3.5-devel/include
 /opt/gcc/3.5-devel/lib/gcc/x86_64-suse-linux-gnu/3.5.0/include
 /usr/include
End of search list.
 /opt/gcc/3.5-devel/libexec/gcc/x86_64-suse-linux-gnu/3.5.0/cc1 -fpreprocessed
wgenops.i -quiet -dumpbase wgenops.c -mtune=k8 -auxbase-strip
/builds/glibc/3.5/libio/wgenops.o -g -O2 -Wall -Winline -Wstrict-prototypes
-Wwrite-strings -std=gnu99 -version -fexceptions -o wgenops.s
GNU C version 3.5.0 20040906 (experimental) (x86_64-suse-linux-gnu)
        compiled by GNU C version 3.5.0 20040906 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
wgenops.c: In function `_IO_wdefault_xsputn':
wgenops.c:320: error: Incorrect sharing of tree nodes
T.700<D9863>_76 = (<unnamed type>) i<D9366>_91;

(<unnamed type>) i<D9366>_91;

wgenops.c:320: internal compiler error: verify_stmts failed.
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

-- 
           Summary: Incorrect sharing of tree nodes
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: aj at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: x86_64-linux-gnu
  GCC host triplet: x86_64-linux-gnu
GCC target triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17342