Implementation notes: armeabi, h6dragon, crypto_aead/artemia256v1

Computer: h6dragon
Architecture: armeabi
CPU ID: unknown CPU ID
SUPERCOP version: 20141014
Operation: crypto_aead
Primitive: artemia256v1

Time	Implementation	Compiler	Benchmark date	SUPERCOP version
4969943	`ref`	`gcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer`	20141022	20141014
4991123	`ref`	`gcc -funroll-loops -fno-schedule-insns -O2 -fomit-frame-pointer`	20141022	20141014
5064813	`ref`	`gcc -funroll-loops -O2 -fomit-frame-pointer`	20141022	20141014
5065679	`ref`	`gcc -mcpu=strongarm1100 -O3 -fomit-frame-pointer`	20141022	20141014
5065758	`ref`	`gcc -mcpu=arm8 -O3 -fomit-frame-pointer`	20141022	20141014
5065971	`ref`	`gcc -mcpu=strongarm110 -O3 -fomit-frame-pointer`	20141022	20141014
5066114	`ref`	`gcc -mcpu=strongarm -O3 -fomit-frame-pointer`	20141022	20141014
5066648	`ref`	`gcc -mcpu=arm810 -O3 -fomit-frame-pointer`	20141022	20141014
5097923	`ref`	`gcc -funroll-loops -O3 -fomit-frame-pointer`	20141022	20141014
5128064	`ref`	`gcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O3 -fomit-frame-pointer`	20141022	20141014
5139102	`ref`	`gcc -mcpu=cortex-a5 -O3 -fomit-frame-pointer`	20141022	20141014
5211416	`ref`	`gcc -funroll-loops -fno-schedule-insns -O3 -fomit-frame-pointer`	20141022	20141014
5244854	`ref`	`gcc -mcpu=cortex-a9 -O3 -fomit-frame-pointer`	20141022	20141014
5251557	`ref`	`gcc -funroll-loops -O -fomit-frame-pointer`	20141022	20141014
5251907	`ref`	`gcc -funroll-loops -fno-schedule-insns -O -fomit-frame-pointer`	20141022	20141014
5294453	`ref`	`gcc -O3 -fomit-frame-pointer`	20141022	20141014
5422853	`ref`	`gcc -fno-schedule-insns -O3 -fomit-frame-pointer`	20141022	20141014
7119709	`ref`	`gcc -mcpu=strongarm -O -fomit-frame-pointer`	20141022	20141014
7120331	`ref`	`gcc -mcpu=strongarm1100 -O -fomit-frame-pointer`	20141022	20141014
7120476	`ref`	`gcc -mcpu=strongarm110 -O -fomit-frame-pointer`	20141022	20141014
7158426	`ref`	`gcc -mcpu=strongarm110 -O2 -fomit-frame-pointer`	20141022	20141014
7171203	`ref`	`gcc -mcpu=arm810 -O2 -fomit-frame-pointer`	20141022	20141014
7173792	`ref`	`gcc -mcpu=strongarm1100 -O2 -fomit-frame-pointer`	20141022	20141014
7173977	`ref`	`gcc -mcpu=arm8 -O2 -fomit-frame-pointer`	20141022	20141014
7182104	`ref`	`gcc -mcpu=arm8 -O -fomit-frame-pointer`	20141022	20141014
7188666	`ref`	`gcc -mcpu=strongarm -O2 -fomit-frame-pointer`	20141022	20141014
7217780	`ref`	`gcc -mcpu=arm810 -O -fomit-frame-pointer`	20141022	20141014
7350737	`ref`	`gcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer`	20141022	20141014
7354166	`ref`	`gcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O -fomit-frame-pointer`	20141022	20141014
7374642	`ref`	`gcc -mcpu=cortex-a5 -O -fomit-frame-pointer`	20141022	20141014
7427683	`ref`	`gcc -mcpu=arm8 -Os -fomit-frame-pointer`	20141022	20141014
7428451	`ref`	`gcc -mcpu=strongarm1100 -Os -fomit-frame-pointer`	20141022	20141014
7428464	`ref`	`gcc -mcpu=arm810 -Os -fomit-frame-pointer`	20141022	20141014
7432063	`ref`	`gcc -mcpu=strongarm110 -Os -fomit-frame-pointer`	20141022	20141014
7463760	`ref`	`gcc -O -fomit-frame-pointer`	20141022	20141014
7463842	`ref`	`gcc -mcpu=cortex-a9 -O -fomit-frame-pointer`	20141022	20141014
7464126	`ref`	`gcc -fno-schedule-insns -O -fomit-frame-pointer`	20141022	20141014
7482177	`ref`	`gcc -mcpu=strongarm -Os -fomit-frame-pointer`	20141022	20141014
7485040	`ref`	`clang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer`	20141022	20141014
7493692	`ref`	`clang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer`	20141022	20141014
7495065	`ref`	`clang -O3 -fwrapv -mavx2 -fomit-frame-pointer`	20141022	20141014
7495085	`ref`	`clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer`	20141022	20141014
7495792	`ref`	`clang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer`	20141022	20141014
7495847	`ref`	`clang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer`	20141022	20141014
7497317	`ref`	`clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive`	20141022	20141014
7497542	`ref`	`clang -O3 -fwrapv -mavx -fomit-frame-pointer`	20141022	20141014
7500943	`ref`	`clang -O3 -fomit-frame-pointer`	20141022	20141014
7508141	`ref`	`clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer`	20141022	20141014
7509853	`ref`	`clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive`	20141022	20141014
7744870	`ref`	`gcc -mcpu=cortex-a5 -O2 -fomit-frame-pointer`	20141022	20141014
7810621	`ref`	`gcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer`	20141022	20141014
7811133	`ref`	`gcc -O2 -fomit-frame-pointer`	20141022	20141014
7850242	`ref`	`gcc -mcpu=cortex-a9 -O2 -fomit-frame-pointer`	20141022	20141014
7852276	`ref`	`gcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -O2 -fomit-frame-pointer`	20141022	20141014
7941104	`ref`	`gcc -funroll-loops -fno-schedule-insns -Os -fomit-frame-pointer`	20141022	20141014
7949520	`ref`	`gcc -funroll-loops -Os -fomit-frame-pointer`	20141022	20141014
7967082	`ref`	`gcc -fno-schedule-insns -O2 -fomit-frame-pointer`	20141022	20141014
8010058	`ref`	`gcc -fno-schedule-insns -Os -fomit-frame-pointer`	20141022	20141014
8010743	`ref`	`gcc -Os -fomit-frame-pointer`	20141022	20141014
8048126	`ref`	`gcc -mcpu=cortex-a9 -Os -fomit-frame-pointer`	20141022	20141014
8068586	`ref`	`gcc -mcpu=cortex-a5 -Os -fomit-frame-pointer`	20141022	20141014
8068796	`ref`	`gcc -mcpu=cortex-a8 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer`	20141022	20141014
8097594	`ref`	`gcc -mcpu=cortex-a9 -mfloat-abi=hard -mfpu=neon -Os -fomit-frame-pointer`	20141022	20141014
36448137	`ref`	`gcc -funroll-loops`	20141022	20141014
36484350	`ref`	`cc`	20141022	20141014
36491670	`ref`	`gcc`	20141022	20141014

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive

encrypt.c: clang: warning: argument unused during compilation: '-fpolly'
encrypt.c: clang: warning: argument unused during compilation: '-fvectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_padding.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_padding.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 2, namely:

Compiler	Implementations
clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=neon -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive	ref
clang -O3 -fwrapv -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -fomit-frame-pointer -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive	ref

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: clang -O3 -fwrapv -mavx2 -fomit-frame-pointer

encrypt.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_decryption.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_encryption.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_padding.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_permutation.c: clang: warning: argument unused during compilation: '-mavx2'

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -O3 -fwrapv -mavx2 -fomit-frame-pointer	ref

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: clang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer

encrypt.c: clang: warning: argument unused during compilation: '-mavx2'
encrypt.c: clang: warning: argument unused during compilation: '-fpolly'
encrypt.c: clang: warning: argument unused during compilation: '-fvectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_decryption.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_encryption.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_padding.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_padding.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_padding.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_permutation.c: clang: warning: argument unused during compilation: '-mavx2'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -O3 -fwrapv -mavx2 -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer	ref

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: clang -O3 -fwrapv -mavx -fomit-frame-pointer

encrypt.c: clang: warning: argument unused during compilation: '-mavx'
jhae_decryption.c: clang: warning: argument unused during compilation: '-mavx'
jhae_encryption.c: clang: warning: argument unused during compilation: '-mavx'
jhae_padding.c: clang: warning: argument unused during compilation: '-mavx'
jhae_permutation.c: clang: warning: argument unused during compilation: '-mavx'

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -O3 -fwrapv -mavx -fomit-frame-pointer	ref

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: clang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer

encrypt.c: clang: warning: argument unused during compilation: '-mavx'
encrypt.c: clang: warning: argument unused during compilation: '-fpolly'
encrypt.c: clang: warning: argument unused during compilation: '-fvectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_decryption.c: clang: warning: argument unused during compilation: '-mavx'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_encryption.c: clang: warning: argument unused during compilation: '-mavx'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_padding.c: clang: warning: argument unused during compilation: '-mavx'
jhae_padding.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_padding.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_permutation.c: clang: warning: argument unused during compilation: '-mavx'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -O3 -fwrapv -mavx -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer	ref

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: clang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -O3 -fwrapv -mavx -maes -mpclmul -fomit-frame-pointer	ref

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: clang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer

encrypt.c: clang: warning: argument unused during compilation: '-mavx'
encrypt.c: clang: warning: argument unused during compilation: '-maes'
encrypt.c: clang: warning: argument unused during compilation: '-mpclmul'
encrypt.c: clang: warning: argument unused during compilation: '-fpolly'
encrypt.c: clang: warning: argument unused during compilation: '-fvectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
encrypt.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_decryption.c: clang: warning: argument unused during compilation: '-mavx'
jhae_decryption.c: clang: warning: argument unused during compilation: '-maes'
jhae_decryption.c: clang: warning: argument unused during compilation: '-mpclmul'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_decryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_encryption.c: clang: warning: argument unused during compilation: '-mavx'
jhae_encryption.c: clang: warning: argument unused during compilation: '-maes'
jhae_encryption.c: clang: warning: argument unused during compilation: '-mpclmul'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_encryption.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_padding.c: clang: warning: argument unused during compilation: '-mavx'
jhae_padding.c: clang: warning: argument unused during compilation: '-maes'
jhae_padding.c: clang: warning: argument unused during compilation: '-mpclmul'
jhae_padding.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_padding.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_padding.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'
jhae_permutation.c: clang: warning: argument unused during compilation: '-mavx'
jhae_permutation.c: clang: warning: argument unused during compilation: '-maes'
jhae_permutation.c: clang: warning: argument unused during compilation: '-mpclmul'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fpolly'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fvectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize'
jhae_permutation.c: clang: warning: argument unused during compilation: '-fslp-vectorize-aggressive'

Number of similar (compiler,implementation) pairs: 1, namely:

Compiler	Implementations
clang -O3 -fwrapv -mavx -maes -mpclmul -fpolly -funroll-loops -fvectorize -fslp-vectorize -fslp-vectorize-aggressive -fomit-frame-pointer	ref

Compiler output

Implementation: crypto_aead/artemia256v1/ref
Compiler: gcc -mcpu=arm810 -O2 -fomit-frame-pointer

encrypt.c: encrypt.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
jhae_decryption.c: jhae_decryption.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
jhae_encryption.c: jhae_encryption.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
jhae_padding.c: jhae_padding.c:1:0: warning: target CPU does not support THUMB instructions [enabled by default]
jhae_permutation.c: jhae_permutation.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: 20, namely:

Compiler	Implementations
gcc -mcpu=arm810 -O2 -fomit-frame-pointer	ref
gcc -mcpu=arm810 -O3 -fomit-frame-pointer	ref
gcc -mcpu=arm810 -O -fomit-frame-pointer	ref
gcc -mcpu=arm810 -Os -fomit-frame-pointer	ref
gcc -mcpu=arm8 -O2 -fomit-frame-pointer	ref
gcc -mcpu=arm8 -O3 -fomit-frame-pointer	ref
gcc -mcpu=arm8 -O -fomit-frame-pointer	ref
gcc -mcpu=arm8 -Os -fomit-frame-pointer	ref
gcc -mcpu=strongarm1100 -O2 -fomit-frame-pointer	ref
gcc -mcpu=strongarm1100 -O3 -fomit-frame-pointer	ref
gcc -mcpu=strongarm1100 -O -fomit-frame-pointer	ref
gcc -mcpu=strongarm1100 -Os -fomit-frame-pointer	ref
gcc -mcpu=strongarm110 -O2 -fomit-frame-pointer	ref
gcc -mcpu=strongarm110 -O3 -fomit-frame-pointer	ref
gcc -mcpu=strongarm110 -O -fomit-frame-pointer	ref
gcc -mcpu=strongarm110 -Os -fomit-frame-pointer	ref
gcc -mcpu=strongarm -O2 -fomit-frame-pointer	ref
gcc -mcpu=strongarm -O3 -fomit-frame-pointer	ref
gcc -mcpu=strongarm -O -fomit-frame-pointer	ref
gcc -mcpu=strongarm -Os -fomit-frame-pointer	ref