Implementation notes: armeabi, h6dragon, crypto_hash/edonr512

Computer: h6dragon
Architecture: armeabi
CPU ID: unknown CPU ID
SUPERCOP version: 20141014
Operation: crypto_hash
Primitive: edonr512
TimeImplementationCompilerBenchmark dateSUPERCOP version
26607swpbegcc -mcpu=cortex-a9 -Os -fomit-frame-pointer2014101620141014
26683swpbegcc -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
26745swpbegcc -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
27501swpbegcc -mcpu=cortex-a5 -Os -fomit-frame-pointer2014101620141014
27507swpbegcc -funroll-loops -Os -fomit-frame-pointer2014101620141014
27519swpbegcc -mcpu=cortex-a5 -O -fomit-frame-pointer2014101620141014
27531swpbegcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
27573swpbegcc -O -fomit-frame-pointer2014101620141014
27573swpbegcc -mcpu=cortex-a9 -O -fomit-frame-pointer2014101620141014
27589swpbegcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
27592swpbegcc -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
27594swpbegcc -funroll-loops -O -fomit-frame-pointer2014101620141014
27632swpbegcc -Os -fomit-frame-pointer2014101620141014
27677swpbegcc -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
28041swpbegcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
28079swpbegcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
28166swpbeclang -O3 -fwrapv -mavx2 -fomit-frame-pointer2014101620141014
28172swpbeclang -O3 -fomit-frame-pointer2014101620141014
28177swpbeclang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
28193swpbeclang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
28193swpbeclang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
28195swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer 2014101620141014
28195swpbeclang -O3 -fwrapv -mavx -fomit-frame-pointer2014101620141014
28199swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer 2014101620141014
28200swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
28200swpbeclang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer2014101620141014
28212swpbeclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
28665optcclang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
28683optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
28691optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer 2014101620141014
28695optcclang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer2014101620141014
28704optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer 2014101620141014
28707optcclang -O3 -fwrapv -mavx2 -fomit-frame-pointer2014101620141014
28709optcclang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
28716optcclang -O3 -fomit-frame-pointer2014101620141014
28718optcclang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer2014101620141014
28719optcclang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive2014101620141014
28726optcclang -O3 -fwrapv -mavx -fomit-frame-pointer2014101620141014
29422optcgcc -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
29558optcgcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer2014101620141014
29568optcgcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
30181optcgcc -fno-schedule-insns -O3 -fomit-frame-pointer2014101620141014
31240optcgcc -funroll-loops -Os -fomit-frame-pointer2014101620141014
31275optcgcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
31405optcgcc -mcpu=cortex-a9 -O -fomit-frame-pointer2014101620141014
31416optcgcc -O -fomit-frame-pointer2014101620141014
31419optcgcc -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
31422optcgcc -mcpu=cortex-a5 -O -fomit-frame-pointer2014101620141014
31736optcgcc -mcpu=cortex-a9 -Os -fomit-frame-pointer2014101620141014
31750optcgcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer2014101620141014
31759optcgcc -funroll-loops -O -fomit-frame-pointer2014101620141014
31966optcgcc -fno-schedule-insns -Os -fomit-frame-pointer2014101620141014
31976optcgcc -Os -fomit-frame-pointer2014101620141014
32099swpbegcc -mcpu=strongarm -O -fomit-frame-pointer2014101620141014
32100swpbegcc -mcpu=strongarm1100 -O -fomit-frame-pointer2014101620141014
32105swpbegcc -mcpu=arm810 -O -fomit-frame-pointer2014101620141014
32147swpbegcc -mcpu=strongarm110 -O -fomit-frame-pointer2014101620141014
32156swpbegcc -mcpu=arm8 -O -fomit-frame-pointer2014101620141014
32174swpbegcc -mcpu=strongarm -Os -fomit-frame-pointer2014101620141014
32183swpbegcc -mcpu=arm8 -Os -fomit-frame-pointer2014101620141014
32188swpbegcc -mcpu=strongarm1100 -Os -fomit-frame-pointer2014101620141014
32193swpbegcc -mcpu=arm810 -Os -fomit-frame-pointer2014101620141014
32206swpbegcc -mcpu=strongarm110 -Os -fomit-frame-pointer2014101620141014
32418optcgcc -mcpu=cortex-a5 -Os -fomit-frame-pointer2014101620141014
35227swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
35312optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
35384optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
35465swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
35738optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
35849optcgcc -mcpu=strongarm110 -Os -fomit-frame-pointer2014101620141014
35855optcgcc -mcpu=arm8 -Os -fomit-frame-pointer2014101620141014
35858optcgcc -mcpu=arm810 -Os -fomit-frame-pointer2014101620141014
35860optcgcc -mcpu=strongarm1100 -Os -fomit-frame-pointer2014101620141014
35864optcgcc -mcpu=strongarm -Os -fomit-frame-pointer2014101620141014
35875swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer2014101620141014
35930swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
36169swpbegcc -funroll-loops -O2 -fomit-frame-pointer2014101620141014
36438swpbegcc -funroll-loops -O3 -fomit-frame-pointer2014101620141014
36922optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer2014101620141014
36986swpbegcc -mcpu=cortex-a9 -O2 -fomit-frame-pointer2014101620141014
37373swpbegcc -mcpu=cortex-a9 -O3 -fomit-frame-pointer2014101620141014
37734swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
37798optcgcc -mcpu=arm810 -O -fomit-frame-pointer2014101620141014
37810optcgcc -mcpu=arm8 -O -fomit-frame-pointer2014101620141014
37828optcgcc -mcpu=strongarm1100 -O -fomit-frame-pointer2014101620141014
37836optcgcc -mcpu=strongarm -O -fomit-frame-pointer2014101620141014
37837optcgcc -mcpu=strongarm110 -O -fomit-frame-pointer2014101620141014
37924swpbegcc -O2 -fomit-frame-pointer2014101620141014
38373swpbegcc -O3 -fomit-frame-pointer2014101620141014
38527optcgcc -mcpu=cortex-a9 -O2 -fomit-frame-pointer2014101620141014
39310optcgcc -funroll-loops -O2 -fomit-frame-pointer2014101620141014
39458optcgcc -funroll-loops -O3 -fomit-frame-pointer2014101620141014
39613optcgcc -mcpu=cortex-a9 -O3 -fomit-frame-pointer2014101620141014
40032swpbegcc -mcpu=arm8 -O2 -fomit-frame-pointer2014101620141014
40129swpbegcc -mcpu=arm8 -O3 -fomit-frame-pointer2014101620141014
40270swpbegcc -mcpu=strongarm -O2 -fomit-frame-pointer2014101620141014
40274swpbegcc -mcpu=strongarm1100 -O2 -fomit-frame-pointer2014101620141014
40279swpbegcc -mcpu=arm810 -O2 -fomit-frame-pointer2014101620141014
40306swpbegcc -mcpu=strongarm110 -O2 -fomit-frame-pointer2014101620141014
40380swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
40475swpbegcc -mcpu=arm810 -O3 -fomit-frame-pointer2014101620141014
40486swpbegcc -mcpu=strongarm110 -O3 -fomit-frame-pointer2014101620141014
40495swpbegcc -mcpu=strongarm -O3 -fomit-frame-pointer2014101620141014
40496swpbegcc -mcpu=strongarm1100 -O3 -fomit-frame-pointer2014101620141014
40620optcgcc -O2 -fomit-frame-pointer2014101620141014
40636optcgcc -O3 -fomit-frame-pointer2014101620141014
40950swpbegcc -mcpu=cortex-a5 -O3 -fomit-frame-pointer2014101620141014
41261swpbegcc -mcpu=cortex-a5 -O2 -fomit-frame-pointer2014101620141014
41712optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
41782optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer2014101620141014
42656optcgcc -mcpu=cortex-a5 -O2 -fomit-frame-pointer2014101620141014
43025optcgcc -mcpu=cortex-a5 -O3 -fomit-frame-pointer2014101620141014
58580optcgcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
58640optcgcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
59222optcgcc -mcpu=strongarm -O2 -fomit-frame-pointer2014101620141014
59292optcgcc -mcpu=arm8 -O2 -fomit-frame-pointer2014101620141014
59293optcgcc -mcpu=strongarm110 -O2 -fomit-frame-pointer2014101620141014
59295optcgcc -mcpu=strongarm1100 -O2 -fomit-frame-pointer2014101620141014
59323optcgcc -mcpu=arm810 -O2 -fomit-frame-pointer2014101620141014
59539optcgcc -mcpu=arm810 -O3 -fomit-frame-pointer2014101620141014
59657optcgcc -mcpu=arm8 -O3 -fomit-frame-pointer2014101620141014
59717optcgcc -mcpu=strongarm -O3 -fomit-frame-pointer2014101620141014
59722optcgcc -mcpu=strongarm110 -O3 -fomit-frame-pointer2014101620141014
59730optcgcc -mcpu=strongarm1100 -O3 -fomit-frame-pointer2014101620141014
60933swpbegcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
60991swpbegcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer2014101620141014
68809swpbecc2014101620141014
68843swpbegcc2014101620141014
68878swpbegcc -funroll-loops2014101620141014
116976optcgcc2014101620141014
116985optccc2014101620141014
116985optcgcc -funroll-loops2014101620141014

Compiler output

Implementation: crypto_hash/edonr512/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/edonr512/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/edonr512/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/edonr512/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/edonr512/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/edonr512/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/edonr512/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/edonr512/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