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Subject: [Bug target/54661] New: mcore_output_movedouble:=?UTF-8?Q?=20operation=20on=20=E2=80=98memexp=E2=80=99=20may=20be=20undefined?=
Date: Fri, 21 Sep 2012 18:01:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D54661

             Bug #: 54661
           Summary: mcore_output_movedouble: operation on =E2=80=98memexp=
=E2=80=99 may be
                    undefined
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: amylaar@gcc.gnu.org
                CC: nickc@redhat.com
            Blocks: 44756
            Target: mcore-elf


g++ -c   -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE  -fno-exceptions -fno-=
rtti=20
-W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attrib=
ute
-pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werr=
or
-fno-common  -DHAVE_CONFIG_H -I. -I. -I../../../gcc/gcc -I../../../gcc/gcc/.
-I../../../gcc/gcc/../include -I../../../gcc/gcc/../libcpp/include=20
-I../../../gcc/gcc/../libdecnumber -I../../../gcc/gcc/../libdecnumber/dpd
-I../libdecnumber    \
        ../../../gcc/gcc/config/mcore/mcore.c -o mcore.o
In file included from ../../../gcc/gcc/config/mcore/mcore.c:25:0:
../../../gcc/gcc/config/mcore/mcore.c: In function =E2=80=98const char*
mcore_output_movedouble(rtx_def**, machine_mode)=E2=80=99:
../../../gcc/gcc/rtl.h:767:59: error: operation on =E2=80=98memexp=E2=80=99=
 may be undefined
[-Werror=3Dsequence-point]
 #define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rt_rtx)
                                                           ^
../../../gcc/gcc/config/mcore/mcore.c:1345:26: note: in expansion of macro
'XEXP'
    rtx memexp =3D memexp =3D XEXP (src, 0);
                          ^
cc1plus: all warnings being treated as errors
make[2]: *** [mcore.o] Error 1
rm gcov.pod gcc.pod cpp.pod fsf-funding.pod gccgo.pod gfortran.pod gfdl.pod
make[2]: Leaving directory `/home/amylaar/fsf/multi/mcore-elf/gcc'
make[1]: *** [all-gcc] Error 2
make[1]: Leaving directory `/home/amylaar/fsf/multi/mcore-elf'