Implementation notes: armeabi, h6dragon, crypto_hash/edonr256

Computer: h6dragon
Architecture: armeabi
CPU ID: unknown CPU ID
SUPERCOP version: 20141014
Operation: crypto_hash
Primitive: edonr256
TimeImplementationCompilerBenchmark dateSUPERCOP version
18634swpbegcc -mcpu=strongarm1100 -Os -fomit-frame-pointer2014101620141014
18643swpbegcc -mcpu=strongarm -Os -fomit-frame-pointer2014101620141014
18669swpbegcc -mcpu=arm810 -Os -fomit-frame-pointer2014101620141014
18677swpbegcc -mcpu=strongarm110 -Os -fomit-frame-pointer2014101620141014
18681swpbegcc -mcpu=arm8 -Os -fomit-frame-pointer2014101620141014
19174swpbegcc -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
19318swpbegcc -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
19524swpbegcc -Os -fomit-frame-pointer2014101620141014
19549swpbegcc -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
19603swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
19853swpbegcc -funroll-loops -Os -fomit-frame-pointer2014101620141014
19878swpbegcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
19931optcgcc -mcpu=strongarm1100 -Os -fomit-frame-pointer2014101620141014
19935optcgcc -mcpu=strongarm110 -Os -fomit-frame-pointer2014101620141014
19939optcgcc -mcpu=strongarm -Os -fomit-frame-pointer2014101620141014
19957optcgcc -mcpu=arm810 -Os -fomit-frame-pointer2014101620141014
19961optcgcc -mcpu=arm8 -Os -fomit-frame-pointer2014101620141014
20086optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
20224swpbegcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
20228optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
20232optcgcc -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
20265swpbegcc -mcpu=cortex-a5 -Os -fomit-frame-pointer2014101620141014
20362optcgcc -Os -fomit-frame-pointer2014101620141014
20386optcgcc -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
20389swpbegcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
20398optcgcc -mcpu=cortex-a9 -Os -fomit-frame-pointer2014101620141014
20402swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
20450swpbeclang -O3 -fomit-frame-pointer2014101620141014
20450swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer 2014101620141014
20450swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
20450swpbeclang -O3 -fwrapv -mavx2 -fomit-frame-pointer2014101620141014
20450swpbeclang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
20451swpbeclang -O3 -fwrapv -mavx -fomit-frame-pointer2014101620141014
20462swpbeclang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
20477swpbeclang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
20477swpbeclang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer2014101620141014
20487swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer 2014101620141014
20501swpbegcc -mcpu=cortex-a9 -Os -fomit-frame-pointer2014101620141014
20509swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
20540optcgcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
20552optcgcc -funroll-loops -Os -fomit-frame-pointer2014101620141014
20669optcgcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
20709optcgcc -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
20777optcgcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
20914optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer 2014101620141014
20964optcclang -O3 -fwrapv -mavx2 -fomit-frame-pointer2014101620141014
20964optcclang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
20965optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer 2014101620141014
20965optcclang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
20966optcclang -O3 -fomit-frame-pointer2014101620141014
20966optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
20966optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
20966optcclang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
20966optcclang -O3 -fwrapv -mavx -fomit-frame-pointer2014101620141014
20966optcclang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer2014101620141014
20966optcgcc -mcpu=cortex-a5 -Os -fomit-frame-pointer2014101620141014
21742swpbegcc -mcpu=strongarm110 -O -fomit-frame-pointer2014101620141014
21744swpbegcc -mcpu=arm8 -O -fomit-frame-pointer2014101620141014
21751swpbegcc -mcpu=arm810 -O -fomit-frame-pointer2014101620141014
21766swpbegcc -mcpu=strongarm -O -fomit-frame-pointer2014101620141014
21768swpbegcc -mcpu=strongarm1100 -O -fomit-frame-pointer2014101620141014
21789swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
21840swpbegcc -mcpu=cortex-a9 -O -fomit-frame-pointer2014101620141014
21841swpbegcc -O -fomit-frame-pointer2014101620141014
21861swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
21870swpbegcc -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
21919optcgcc -O -fomit-frame-pointer2014101620141014
21919optcgcc -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
21921swpbegcc -mcpu=cortex-a5 -O -fomit-frame-pointer2014101620141014
21943optcgcc -mcpu=cortex-a9 -O -fomit-frame-pointer2014101620141014
22073optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
22205swpbegcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
22209swpbegcc -funroll-loops -O -fomit-frame-pointer2014101620141014
22307optcgcc -mcpu=arm810 -O -fomit-frame-pointer2014101620141014
22312optcgcc -mcpu=arm8 -O -fomit-frame-pointer2014101620141014
22314optcgcc -mcpu=strongarm -O -fomit-frame-pointer2014101620141014
22351optcgcc -mcpu=strongarm1100 -O -fomit-frame-pointer2014101620141014
22351optcgcc -mcpu=strongarm110 -O -fomit-frame-pointer2014101620141014
22408optcgcc -mcpu=cortex-a5 -O -fomit-frame-pointer2014101620141014
22408optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
22599optcgcc -funroll-loops -O -fomit-frame-pointer2014101620141014
22624optcgcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
26373swpbegcc -mcpu=cortex-a9 -O3 -fomit-frame-pointer2014101620141014
26547optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
26604swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
26759swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
26901optcgcc -mcpu=cortex-a9 -O3 -fomit-frame-pointer2014101620141014
27024swpbegcc -funroll-loops -O3 -fomit-frame-pointer2014101620141014
27097optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
27125optcgcc -O2 -fomit-frame-pointer2014101620141014
27146optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
27175optcgcc -O3 -fomit-frame-pointer2014101620141014
27195optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
27213optcgcc -mcpu=cortex-a9 -O2 -fomit-frame-pointer2014101620141014
27237swpbegcc -O2 -fomit-frame-pointer2014101620141014
27249swpbegcc -mcpu=cortex-a9 -O2 -fomit-frame-pointer2014101620141014
27298swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
27302swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
27317swpbegcc -funroll-loops -O2 -fomit-frame-pointer2014101620141014
27324optcgcc -funroll-loops -O3 -fomit-frame-pointer2014101620141014
27330swpbegcc -O3 -fomit-frame-pointer2014101620141014
27421optcgcc -funroll-loops -O2 -fomit-frame-pointer2014101620141014
27712optcgcc -mcpu=arm8 -O2 -fomit-frame-pointer2014101620141014
27749optcgcc -mcpu=arm8 -O3 -fomit-frame-pointer2014101620141014
27850swpbegcc -mcpu=strongarm110 -O3 -fomit-frame-pointer2014101620141014
27867swpbegcc -mcpu=arm810 -O3 -fomit-frame-pointer2014101620141014
27880swpbegcc -mcpu=arm8 -O3 -fomit-frame-pointer2014101620141014
27880swpbegcc -mcpu=strongarm1100 -O3 -fomit-frame-pointer2014101620141014
27890swpbegcc -mcpu=strongarm -O3 -fomit-frame-pointer2014101620141014
27926swpbegcc -mcpu=cortex-a5 -O3 -fomit-frame-pointer2014101620141014
27999swpbegcc -mcpu=strongarm110 -O2 -fomit-frame-pointer2014101620141014
28009swpbegcc -mcpu=arm8 -O2 -fomit-frame-pointer2014101620141014
28029swpbegcc -mcpu=arm810 -O2 -fomit-frame-pointer2014101620141014
28069swpbegcc -mcpu=strongarm1100 -O2 -fomit-frame-pointer2014101620141014
28072swpbegcc -mcpu=strongarm -O2 -fomit-frame-pointer2014101620141014
28074swpbegcc -mcpu=cortex-a5 -O2 -fomit-frame-pointer2014101620141014
28119optcgcc -mcpu=strongarm1100 -O2 -fomit-frame-pointer2014101620141014
28131optcgcc -mcpu=strongarm110 -O2 -fomit-frame-pointer2014101620141014
28149optcgcc -mcpu=arm810 -O2 -fomit-frame-pointer2014101620141014
28149optcgcc -mcpu=strongarm -O2 -fomit-frame-pointer2014101620141014
28177optcgcc -mcpu=arm810 -O3 -fomit-frame-pointer2014101620141014
28190optcgcc -mcpu=strongarm110 -O3 -fomit-frame-pointer2014101620141014
28193optcgcc -mcpu=cortex-a5 -O3 -fomit-frame-pointer2014101620141014
28196optcgcc -mcpu=strongarm -O3 -fomit-frame-pointer2014101620141014
28199optcgcc -mcpu=strongarm1100 -O3 -fomit-frame-pointer2014101620141014
28263optcgcc -mcpu=cortex-a5 -O2 -fomit-frame-pointer2014101620141014
72524swpbecc2014101620141014
72545swpbegcc -funroll-loops2014101620141014
72567swpbegcc2014101620141014
89797optcgcc2014101620141014
89817optcgcc -funroll-loops2014101620141014
89821optccc2014101620141014

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive
EdonR.c: clang: warning: argument unused during compilation: '-fpolly'
EdonR.c: clang: warning: argument unused during compilation: '-fvectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
hash.c: clang: warning: argument unused during compilation: '-fpolly'
hash.c: clang: warning: argument unused during compilation: '-fvectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 4, namely:
CompilerImplementations
clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive optc swpbe
clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive optc swpbe

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: clang -O3 -fwrapv -mavx2 -fomit-frame-pointer
EdonR.c: clang: warning: argument unused during compilation: '-mavx2'
hash.c: clang: warning: argument unused during compilation: '-mavx2'

Number of similar (compiler,implementation) pairs: 2, namely:
CompilerImplementations
clang -O3 -fwrapv -mavx2 -fomit-frame-pointer optc swpbe

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: clang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer
EdonR.c: clang: warning: argument unused during compilation: '-mavx2'
EdonR.c: clang: warning: argument unused during compilation: '-fpolly'
EdonR.c: clang: warning: argument unused during compilation: '-fvectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
hash.c: clang: warning: argument unused during compilation: '-mavx2'
hash.c: clang: warning: argument unused during compilation: '-fpolly'
hash.c: clang: warning: argument unused during compilation: '-fvectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 2, namely:
CompilerImplementations
clang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer optc swpbe

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: clang -O3 -fwrapv -mavx -fomit-frame-pointer
EdonR.c: clang: warning: argument unused during compilation: '-mavx'
hash.c: clang: warning: argument unused during compilation: '-mavx'

Number of similar (compiler,implementation) pairs: 2, namely:
CompilerImplementations
clang -O3 -fwrapv -mavx -fomit-frame-pointer optc swpbe

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: clang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer
EdonR.c: clang: warning: argument unused during compilation: '-mavx'
EdonR.c: clang: warning: argument unused during compilation: '-fpolly'
EdonR.c: clang: warning: argument unused during compilation: '-fvectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
hash.c: clang: warning: argument unused during compilation: '-mavx'
hash.c: clang: warning: argument unused during compilation: '-fpolly'
hash.c: clang: warning: argument unused during compilation: '-fvectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 2, namely:
CompilerImplementations
clang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer optc swpbe

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: clang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer
EdonR.c: clang: warning: argument unused during compilation: '-mavx'
EdonR.c: clang: warning: argument unused during compilation: '-maes'
EdonR.c: clang: warning: argument unused during compilation: '-mpclmul'
hash.c: clang: warning: argument unused during compilation: '-mavx'
hash.c: clang: warning: argument unused during compilation: '-maes'
hash.c: clang: warning: argument unused during compilation: '-mpclmul'

Number of similar (compiler,implementation) pairs: 2, namely:
CompilerImplementations
clang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer optc swpbe

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: clang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer
EdonR.c: clang: warning: argument unused during compilation: '-mavx'
EdonR.c: clang: warning: argument unused during compilation: '-maes'
EdonR.c: clang: warning: argument unused during compilation: '-mpclmul'
EdonR.c: clang: warning: argument unused during compilation: '-fpolly'
EdonR.c: clang: warning: argument unused during compilation: '-fvectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
EdonR.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
hash.c: clang: warning: argument unused during compilation: '-mavx'
hash.c: clang: warning: argument unused during compilation: '-maes'
hash.c: clang: warning: argument unused during compilation: '-mpclmul'
hash.c: clang: warning: argument unused during compilation: '-fpolly'
hash.c: clang: warning: argument unused during compilation: '-fvectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
hash.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 2, namely:
CompilerImplementations
clang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer optc swpbe

Compiler output

Implementation: crypto_hash/edonr256/optc
Compiler: gcc -mcpu=arm810 -O2 -fomit-frame-pointer
EdonR.c: EdonR.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
hash.c: hash.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
try.c: try.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
try.c: try-anything.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
try.c: try.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
try.c: try-anything.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
measure.c: measure.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
measure.c: measure-anything.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]

Number of similar (compiler,implementation) pairs: 40, namely:
CompilerImplementations
gcc -mcpu=arm810 -O2 -fomit-frame-pointer optc swpbe
gcc -mcpu=arm810 -O3 -fomit-frame-pointer optc swpbe
gcc -mcpu=arm810 -O -fomit-frame-pointer optc swpbe
gcc -mcpu=arm810 -Os -fomit-frame-pointer optc swpbe
gcc -mcpu=arm8 -O2 -fomit-frame-pointer optc swpbe
gcc -mcpu=arm8 -O3 -fomit-frame-pointer optc swpbe
gcc -mcpu=arm8 -O -fomit-frame-pointer optc swpbe
gcc -mcpu=arm8 -Os -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm1100 -O2 -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm1100 -O3 -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm1100 -O -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm1100 -Os -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm110 -O2 -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm110 -O3 -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm110 -O -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm110 -Os -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm -O2 -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm -O3 -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm -O -fomit-frame-pointer optc swpbe
gcc -mcpu=strongarm -Os -fomit-frame-pointer optc swpbe