[Bug tree-optimization/50955] IVopts incorrectly rewrite the address of a global memory access into a local form.

["duyuehai at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50955

--- Comment #1 from Yuehai Du <duyuehai at gmail dot com> 2011-11-02 05:19:24 UTC ---

gcc version r180694

Configured with: /home/croseadu/android/_src/src/gcc-src/configure
--host=i486-linux-gnu --build=i486-linux-gnu
--target=arm-none-linux-gnueabi
--prefix=/home/croseadu/android/_src/install/arm-none-linux-gnueabi
--enable-threads --disable-libmudflap --disable-libssp
--disable-libstdcxx-pch --with-gnu-as --with-gnu-ld
--enable-languages=c,c++ --enable-shared --enable-symvers=gnu
--enable-__cxa_atexit
--with-specs='%{funwind-tables|fno-unwind-tables|mabi=*|ffreestanding|nostdlib:;:-funwind-tables}'
--disable-nls --enable-lto
--with-sysroot=/home/croseadu/android/_src/install/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc
--with-build-sysroot=/home/croseadu/android/_src/install/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc
--with-gmp=/home/croseadu/android/_src/objs/arm-none-linux-gnueabi/obj/host-libs-/usr
--with-mpfr=/home/croseadu/android/_src/objs/arm-none-linux-gnueabi/obj/host-libs-/usr
--with-ppl=/home/croseadu/android/_src/objs/arm-none-linux-gnueabi/obj/host-libs-/usr
--with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic
-lm'
--with-cloog=/home/croseadu/android/_src/objs/arm-none-linux-gnueabi/obj/host-libs-/usr
--enable-cloog-backend=isl
--with-mpc=/home/croseadu/android/_src/objs/arm-none-linux-gnueabi/obj/host-libs-/usr
--enable-poison-system-directories --disable-libquadmath --enable-lto
--enable-libgomp
--with-build-time-tools=/home/croseadu/android/_src/install/arm-none-linux-gnueabi/arm-none-linux-gnueabi/bin
--with-cpu=cortex-a8 --with-float=soft

compile flags:
-O3 -mfpu=neon -mfloat-abi=softfp -mvectorize-with-neon-double