Hi,
Following compilation fails with -O3 -mfpu=neon,(but successful on -O2,
-mfpu=neon) for Cortex-A5. Could you please help me out to resolve this error ?
ubuntu@tegra:~/$ gcc-4.5 -v -c -o utility.o -DLINUX -DUNIX -DHAS_LONGLONG
-DLITTLE_ENDIAN_ARCH -DSPEC_CPU2000 -O3 -mcpu=cortex-a5 -marm -mfpu=neon
-mfloat-abi=softfp utility.c
Using built-in specs.
COLLECT_GCC=gcc-4.5
COLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabi/4.5.1/lto-wrapper
Target: arm-linux-gnueabi
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.5.1-7ubuntu2' --with-bugurl=file:///usr/share/doc/gcc-4.5/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr
--program-suffix=-4.5 --enable-shared --enable-multiarch
--enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib
--without-included-gettext --enable-threads=posix
--with-gxx-include-dir=/usr/include/c++/4.5 --libdir=/usr/lib --enable-nls
--with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc
--disable-sjlj-exceptions --with-arch=armv7-a --with-float=softfp
--with-fpu=vfpv3-d16 --with-mode=thumb --disable-werror
--enable-checking=release --build=arm-linux-gnueabi --host=arm-linux-gnueabi
--target=arm-linux-gnueabi
Thread model: posix
gcc version 4.5.1 (Ubuntu/Linaro 4.5.1-7ubuntu2)
COLLECT_GCC_OPTIONS='-v' '-c' '-o' 'utility.o' '-DLINUX' '-DUNIX'
'-DHAS_LONGLONG' '-DLITTLE_ENDIAN_ARCH' '-DSPEC_CPU2000' '-O3'
'-mcpu=cortex-a5' '-marm' '-mfpu=neon' '-mfloat-abi=softfp'
/usr/lib/gcc/arm-linux-gnueabi/4.5.1/cc1 -quiet -v -DLINUX -DUNIX
-DHAS_LONGLONG -DLITTLE_ENDIAN_ARCH -DSPEC_CPU2000 utility.c
-D_FORTIFY_SOURCE=2 -quiet -dumpbase utility.c -mcpu=cortex-a5 -marm -mfpu=neon
-mfloat-abi=softfp -auxbase-strip utility.o -O3 -version -fstack-protector -o
/tmp/ccaZnpsw.s
GNU C (Ubuntu/Linaro 4.5.1-7ubuntu2) version 4.5.1 (arm-linux-gnueabi)
compiled by GNU C version 4.5.1, GMP version 4.3.2, MPFR version
3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64482
ignoring nonexistent directory "/usr/local/include/arm-linux-gnueabi"
ignoring nonexistent directory
"/usr/lib/gcc/arm-linux-gnueabi/4.5.1/../../../../arm-linux-gnueabi/include"
ignoring nonexistent directory "/usr/include/arm-linux-gnueabi"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/include
/usr/lib/gcc/arm-linux-gnueabi/4.5.1/include
/usr/lib/gcc/arm-linux-gnueabi/4.5.1/include-fixed
/usr/include
End of search list.
GNU C (Ubuntu/Linaro 4.5.1-7ubuntu2) version 4.5.1 (arm-linux-gnueabi)
compiled by GNU C version 4.5.1, GMP version 4.3.2, MPFR version
3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64482
Compiler executable checksum: 52c4962735600b49ca41dc70631edd04
COLLECT_GCC_OPTIONS='-v' '-c' '-o' 'utility.o' '-DLINUX' '-DUNIX'
'-DHAS_LONGLONG' '-DLITTLE_ENDIAN_ARCH' '-DSPEC_CPU2000' '-O3'
'-mcpu=cortex-a5' '-marm' '-mfpu=neon' '-mfloat-abi=softfp'
as -mcpu=cortex-a5 -mfloat-abi=softfp -mfpu=neon -meabi=5 -o utility.o
/tmp/ccaZnpsw.s
/tmp/ccaZnpsw.s: Assembler messages:
/tmp/ccaZnpsw.s:460: Error: VFP/Neon double precision register expected --
`vmovl.s16 q5,s20'
/tmp/ccaZnpsw.s:531: Error: VFP/Neon double precision register expected --
`vmovl.s16 q9,s14'
/tmp/ccaZnpsw.s:537: Error: VFP/Neon double precision register expected --
`vmovl.s16 q7,s28'
/tmp/ccaZnpsw.s:542: Error: VFP/Neon double precision register expected --
`vmovl.s16 q13,s12'
/tmp/ccaZnpsw.s:543: Error: VFP/Neon double precision register expected --
`vmovl.s16 q14,s10'
/tmp/ccaZnpsw.s:544: Error: VFP/Neon double precision register expected --
`vmovl.s16 q3,s8'
/tmp/ccaZnpsw.s:546: Error: VFP/Neon double precision register expected --
`vmovl.s16 q2,s6'
/tmp/ccaZnpsw.s:549: Error: VFP/Neon double precision register expected --
`vmovl.s16 q1,s4'
/tmp/ccaZnpsw.s:550: Error: VFP/Neon double precision register expected --
`vmovl.s16 q0,s0'
/tmp/ccaZnpsw.s:551: Error: VFP/Neon double precision register expected --
`vmovl.s16 q4,s16'
Regards,
Shankar
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