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bsaes-armv7.pl: even closer shave.

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This commit is contained in:
Andy Polyakov 2012-09-04 14:39:05 +00:00
parent a903e6919c
commit 4f16215b9d
1 changed files with 16 additions and 16 deletions
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32
crypto/aes/asm/bsaes-armv7.pl
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@ -18,11 +18,11 @@
# only low-level primitives and unsupported entry points, just enough
# to collect performance results, which for Cortex-A8 core are:
#
# encrypt 20.0 cycles per byte processed with 128-bit key
# decrypt 24.5 cycles per byte processed with 128-bit key
# encrypt 19.7 cycles per byte processed with 128-bit key
# decrypt 24.1 cycles per byte processed with 128-bit key
# key conv. 440 cycles per 128-bit key/0.17 of 8x block
#
# Snapdragon S4 encrypts byte in 18.3 cycles and decrypts in 23.3.
# Snapdragon S4 encrypts byte in 17.9 cycles and decrypts in 22.9.
#
# When comparing to x86_64 results keep in mind that NEON unit is
# [mostly] single-issue and thus can't [fully] benefit from
@ -262,22 +262,22 @@ $code.=<<___;
vorr @t[3], @t[3], @s[0]
veor @s[0], @s[0], @t[1]
vand @t[0], @t[0], @t[1]
veor @t[1], @x[3], @x[2]
vand @s[3], @s[3], @s[0]
veor @s[0], @x[3], @x[2]
vand @s[1], @s[1], @s[0]
vand @s[1], @s[1], @t[1]
veor @t[1], @x[4], @x[5]
veor @s[0], @x[1], @x[0]
veor @t[3], @t[3], @s[1]
veor @t[2], @t[2], @s[1]
veor @s[1], @x[4], @x[5]
veor @s[0], @x[1], @x[0]
vorr @t[1], @s[1], @s[0]
vand @s[1], @s[1], @s[0]
veor @t[0], @t[0], @s[1]
vand @s[1], @t[1], @s[0]
vorr @t[1], @t[1], @s[0]
veor @t[3], @t[3], @s[3]
veor @t[0], @t[0], @s[1]
veor @t[2], @t[2], @s[2]
veor @t[1], @t[1], @s[3]
veor @t[0], @t[0], @s[2]
veor @t[1], @t[1], @s[2]
vand @s[0], @x[7], @x[3]
veor @t[1], @t[1], @s[2]
vand @s[1], @x[6], @x[2]
vand @s[2], @x[5], @x[1]
vorr @s[3], @x[4], @x[0]
@ -381,13 +381,13 @@ $code.=<<___;
veor @x[5], @x[5], @t[5]
vext.8 @t[7], @x[7], @x[7], #12
veor @x[6], @x[6], @t[6]
veor @x[7], @x[7], @t[7]
veor @t[1], @t[1], @x[0]
veor @x[7], @x[7], @t[7]
vext.8 @x[0], @x[0], @x[0], #8 @ (x0 ^ (x0 <<< 32)) <<< 64)
veor @t[2], @t[2], @x[1]
veor @t[0], @t[0], @x[7]
veor @t[1], @t[1], @x[7]
veor @t[2], @t[2], @x[1]
vext.8 @x[1], @x[1], @x[1], #8
veor @t[5], @t[5], @x[4]
veor @x[0], @x[0], @t[0]
@ -400,9 +400,9 @@ $code.=<<___;
vext.8 @x[4], @x[3], @x[3], #8
veor @t[3], @t[3], @x[2]
vext.8 @x[5], @x[7], @x[7], #8
veor @t[3], @t[3], @x[7]
vext.8 @x[3], @x[6], @x[6], #8
veor @t[4], @t[4], @x[7]
vext.8 @x[3], @x[6], @x[6], #8
veor @t[3], @t[3], @x[7]
vext.8 @x[6], @x[2], @x[2], #8
veor @x[7], @t[1], @t[5]
veor @x[2], @t[0], @t[4]
@ -479,9 +479,9 @@ $code.=<<___;
vext.8 @t[3], @t[3], @t[3], #12
veor @y[5], @y[5], @t[4]
veor @y[7], @y[7], @t[7]
veor @t[7], @t[7], @t[5] @ clobber t[7] even more
veor @y[3], @y[3], @t[5]
veor @y[4], @y[4], @t[4]
veor @t[7], @t[7], @t[5] @ clobber t[7] even more
veor @y[5], @y[5], @t[7]
vext.8 @t[4], @t[4], @t[4], #12