[Bug c++/57271] ARM: gcc generates insufficient alignment for memory passed as extra argument for function return large composite type

[java4ada at yahoo dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57271

--- Comment #2 from java4ada at yahoo dot com ---
I don't know if ABI dictates it but from observation the stack is aligned to
8-byte for the largest primitive type "double" (or long long). 

I configure it on Ubuntu 12.04 64-bit with the following:

 ~/m/gcc/gcc-4.8/configure \
    --prefix=/tmp/gcc/prefix --target=arm-linux-androideabi
--host=x86_64-linux-gnu --build=x86_64-linux-gnu \
    --with-gnu-as --with-gnu-ld --enable-languages=c,c++ \
    --with-gmp=/tmp/gcc/temp-install \
    --with-mpfr=/tmp/gcc/temp-install \
    --with-mpc=/tmp/gcc/temp-install \
    --with-cloog=/tmp/gcc/temp-install \
    --with-isl=/tmp/gcc/temp-install \
    --with-ppl=/tmp/gcc/temp-install \
    --disable-ppl-version-check --disable-cloog-version-check
--disable-isl-version-check \
    --enable-cloog-backend=isl \
    --with-host-libstdcxx="-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm"
\
    --disable-libssp \
    --enable-threads \
    --disable-libmudflap --disable-libstdc__-v3 --disable-sjlj-exceptions
--disable-shared \
    --disable-tls --disable-libitm --disable-nls --disable-bootstrap
--disable-libquadmath --disable-libsanitizer \
    --with-float=soft --with-fpu=vfp --with-arch=armv5te \
    --enable-target-optspace --enable-initfini-array \
    --with-sysroot=/tmp/gcc/prefix/sysroot \
    --enable-plugins --enable-libgomp \
    --enable-gold=default