diff options
Diffstat (limited to 'libbb/hash_md5_sha_x86-64.S.sh')
| -rwxr-xr-x | libbb/hash_md5_sha_x86-64.S.sh | 440 |
1 files changed, 296 insertions, 144 deletions
diff --git a/libbb/hash_md5_sha_x86-64.S.sh b/libbb/hash_md5_sha_x86-64.S.sh index 901896e..87c2d08 100755 --- a/libbb/hash_md5_sha_x86-64.S.sh +++ b/libbb/hash_md5_sha_x86-64.S.sh @@ -6,33 +6,103 @@ # also contains the diff of the generated file. exec >hash_md5_sha_x86-64.S -# There is a way to use XMM registers (which always exist for x86-64!) for W[] -# For example, if we load W as follows: -# %xmm0: w[0x0] w[0x1] w[0x2] w[0x3] -# %xmm4: w[0x4] w[0x5] w[0x6] w[0x7] -# %xmm8: w[0x8] w[0x9] w[0xa] w[0xb] -# %xmm12: w[0xc] w[0xd] w[0xe] w[0xf] -# then the xor'ing operation to generate next W[0..3] is: -# movaps %xmm0, %xmmT2 -# palignr $0x8, %xmm4, %xmmT2 # form (w[0x2],w[0x3],w[0x4],w[0x5]) -# # Right-shifts xmm4:xmmT2 by 8 bytes. Writes shifted result to xmmT2. SSSE3 insn. -# movaps %xmm0, %xmmT13 -# palignr $0x4,%xmm0,%xmmT13 # form (w[0xd],w[0xe],w[0xf],w[0x0]) -# xmm0 = xmm0 ^ t2 ^ xmm8 ^ t13 -# xmm0 = rol32(xmm0,1) # no such insn, have to use pslld+psrld+or -# and then results can be extracted for use: -# movd %xmm0, %esi # new W[0] -# pextrd $1, %xmm0, %esi # new W[1] -# # SSE4.1 insn. Can use EXTRACTPS (also SSE4.1) -# pextrd $2, %xmm0, %esi # new W[2] -# pextrd $3, %xmm0, %esi # new W[3] -# ... but this requires SSE4.1 and SSSE3, which are not universally available on x86-64. +# Based on http://arctic.org/~dean/crypto/sha1.html. +# ("This SHA1 implementation is public domain.") +# +# x86-64 has at least SSE2 vector insns always available. +# We can use them without any CPUID checks (and without a need +# for a fallback code if needed insns are not available). +# This code uses them to calculate W[] ahead of time. +# +# Unfortunately, results are passed from vector unit to +# integer ALUs on the stack. MOVD/Q insns to move them directly +# from vector to integer registers are slower than store-to-load +# forwarding in LSU (on Skylake at least). +# +# The win against a purely integer code is small on Skylake, +# only about 7-8%. We offload about 1/3 of our operations to the vector unit. +# It can do 4 ops at once in one 128-bit register, +# but we have to use x2 of them because of W[0] complication, +# SSE2 has no "rotate each word by N bits" insns, +# moving data to/from vector unit is clunky, and Skylake +# has four integer ALUs unified with three vector ALUs, +# which makes pure integer code rather fast, and makes +# vector ops compete with integer ones. +# +# Zen3, with its separate vector ALUs, wins more, about 12%. + +xmmT1="%xmm4" +xmmT2="%xmm5" +xmmRCONST="%xmm6" +T=`printf '\t'` + +# SSE instructions are longer than 4 bytes on average. +# Intel CPUs (up to Tiger Lake at least) can't decode +# more than 16 bytes of code in one cycle. +# By interleaving SSE code and integer code +# we mostly achieve a situation where 16-byte decode fetch window +# contains 4 (or more) insns. +# +# However. On Skylake, there was no observed difference, +# but on Zen3, non-interleaved code is ~3% faster +# (822 Mb/s versus 795 Mb/s hashing speed). +# Off for now: +interleave=false + +INTERLEAVE() { + $interleave || \ + { + # Generate non-interleaved code + # (it should work correctly too) + echo "$1" + echo "$2" + return + } + ( + echo "$1" | grep -v '^$' >"$0.temp1" + echo "$2" | grep -v '^$' >"$0.temp2" + exec 3<"$0.temp1" + exec 4<"$0.temp2" + IFS='' + while :; do + line1='' + line2='' + while :; do + read -r line1 <&3 + if test "${line1:0:1}" != "#" && test "${line1:0:2}" != "$T#"; then + break + fi + echo "$line1" + done + while :; do + read -r line2 <&4 + if test "${line2:0:4}" = "${T}lea"; then + # We use 7-8 byte long forms of LEA. + # Do not interleave them with SSE insns + # which are also long. + echo "$line2" + read -r line2 <&4 + echo "$line2" + continue + fi + if test "${line2:0:1}" != "#" && test "${line2:0:2}" != "$T#"; then + break + fi + echo "$line2" + done + test "$line1$line2" || break + echo "$line1" + echo "$line2" + done + rm "$0.temp1" "$0.temp2" + ) +} echo \ -'### Generated by hash_md5_sha_x86-64.S.sh ### +"### Generated by hash_md5_sha_x86-64.S.sh ### #if CONFIG_SHA1_SMALL == 0 && defined(__GNUC__) && defined(__x86_64__) - .section .text.sha1_process_block64,"ax",@progbits + .section .text.sha1_process_block64,\"ax\",@progbits .globl sha1_process_block64 .hidden sha1_process_block64 .type sha1_process_block64, @function @@ -51,16 +121,10 @@ sha1_process_block64: # eax..edx: a..d # ebp: e # esi,edi: temps -# -32+4*n(%rsp),r8...r15: W[0..7,8..15] -# (TODO: actually W[0..7] are used a bit more often, put _them_ into r8..r15?) - movl $3, %eax -1: - movq (%rdi,%rax,8), %rsi - bswapq %rsi - rolq $32, %rsi - movq %rsi, -32(%rsp,%rax,8) - decl %eax - jns 1b +# xmm0..xmm3: W[] +# xmm4,xmm5: temps +# xmm6: current round constant +# -64(%rsp): area for passing RCONST + W[] from vector to integer units movl 80(%rdi), %eax # a = ctx->hash[0] movl 84(%rdi), %ebx # b = ctx->hash[1] @@ -68,32 +132,120 @@ sha1_process_block64: movl 92(%rdi), %edx # d = ctx->hash[3] movl 96(%rdi), %ebp # e = ctx->hash[4] + movaps rconst0x5A827999(%rip), $xmmRCONST + + # For round 1, steps 0 and 8..15, we pass W[0,8..15] in esi,r8..r15 + # instead of spilling them to stack. + # (We lose parallelized addition of RCONST, but LEA + # can do two additions at once, so...) + movq 4*0(%rdi), %rsi + movq 4*2(%rdi), %r10 + bswapq %rsi + bswapq %r10 + rolq \$32, %rsi # rsi = W[1]:W[0] + rolq \$32, %r10 + movq %rsi, %xmm0 + movq %r10, $xmmT1 + punpcklqdq $xmmT1, %xmm0 # xmm0 = r10:rsi = (W[0],W[1],W[2],W[3]) + movaps %xmm0, $xmmT1 + paddd $xmmRCONST, $xmmT1 + movups $xmmT1, -64+4*0(%rsp) + + movq 4*4(%rdi), %r8 + movq 4*6(%rdi), %r10 + bswapq %r8 + bswapq %r10 + rolq \$32, %r8 + rolq \$32, %r10 + movq %r8, %xmm1 + movq %r10, $xmmT1 + punpcklqdq $xmmT1, %xmm1 # xmm1 = r10:r8 = (W[4],W[5],W[6],W[7]) + movaps %xmm1, $xmmT1 + paddd $xmmRCONST, $xmmT1 + movups $xmmT1, -64+4*4(%rsp) + movq 4*8(%rdi), %r8 movq 4*10(%rdi), %r10 bswapq %r8 bswapq %r10 + movl %r8d, %r9d # r9d = W[9] + rolq \$32, %r8 # r8 = W[9]:W[8] + movl %r10d, %r11d # r11d = W[11] + rolq \$32, %r10 # r10 = W[11]:W[10] + movq %r8, %xmm2 + movq %r10, $xmmT1 + punpcklqdq $xmmT1, %xmm2 # xmm2 = r10:r8 = (W[8],W[9],W[10],W[11]) + movq 4*12(%rdi), %r12 movq 4*14(%rdi), %r14 bswapq %r12 bswapq %r14 - movl %r8d, %r9d - shrq $32, %r8 - movl %r10d, %r11d - shrq $32, %r10 - movl %r12d, %r13d - shrq $32, %r12 - movl %r14d, %r15d - shrq $32, %r14 -' -W32() { -test "$1" || exit 1 -test "$1" -lt 0 && exit 1 -test "$1" -gt 15 && exit 1 -test "$1" -lt 8 && echo "-32+4*$1(%rsp)" -test "$1" -ge 8 && echo "%r${1}d" + movl %r12d, %r13d # r13d = W[13] + rolq \$32, %r12 # r12 = W[13]:W[12] + movl %r14d, %r15d # r15d = W[15] + rolq \$32, %r14 # r14 = W[15]:W[14] + movq %r12, %xmm3 + movq %r14, $xmmT1 + punpcklqdq $xmmT1, %xmm3 # xmm3 = r14:r12 = (W[12],W[13],W[14],W[15]) +" + +PREP() { +local xmmW0=$1 +local xmmW4=$2 +local xmmW8=$3 +local xmmW12=$4 +# the above must be %xmm0..3 in some permutation +local dstmem=$5 +#W[0] = rol(W[13] ^ W[8] ^ W[2] ^ W[0], 1); +#W[1] = rol(W[14] ^ W[9] ^ W[3] ^ W[1], 1); +#W[2] = rol(W[15] ^ W[10] ^ W[4] ^ W[2], 1); +#W[3] = rol( 0 ^ W[11] ^ W[5] ^ W[3], 1); +#W[3] ^= rol(W[0], 1); +echo "# PREP $@ + movaps $xmmW12, $xmmT1 + psrldq \$4, $xmmT1 # rshift by 4 bytes: T1 = ([13],[14],[15],0) + + pshufd \$0x4e, $xmmW0, $xmmT2 # 01001110=2,3,0,1 shuffle, ([2],[3],x,x) + punpcklqdq $xmmW4, $xmmT2 # T2 = W4[0..63]:T2[0..63] = ([2],[3],[4],[5]) + + xorps $xmmW8, $xmmW0 # ([8],[9],[10],[11]) ^ ([0],[1],[2],[3]) + xorps $xmmT1, $xmmT2 # ([13],[14],[15],0) ^ ([2],[3],[4],[5]) + xorps $xmmT2, $xmmW0 # ^ + # W0 = unrotated (W[0]..W[3]), still needs W[3] fixup + movaps $xmmW0, $xmmT2 + + xorps $xmmT1, $xmmT1 # rol(W0,1): + pcmpgtd $xmmW0, $xmmT1 # ffffffff for elements <0 (ones with msb bit 1) + paddd $xmmW0, $xmmW0 # shift left by 1 + psubd $xmmT1, $xmmW0 # add 1 to those who had msb bit 1 + # W0 = rotated (W[0]..W[3]), still needs W[3] fixup + + pslldq \$12, $xmmT2 # lshift by 12 bytes: T2 = (0,0,0,unrotW[0]) + movaps $xmmT2, $xmmT1 + pslld \$2, $xmmT2 + psrld \$30, $xmmT1 +# xorps $xmmT1, $xmmT2 # rol((0,0,0,unrotW[0]),2) + xorps $xmmT1, $xmmW0 # same result, but does not depend on/does not modify T2 + + xorps $xmmT2, $xmmW0 # W0 = rol(W[0]..W[3],1) ^ (0,0,0,rol(unrotW[0],2)) +" +# movq $xmmW0, %r8 # high latency (~6 cycles) +# movaps $xmmW0, $xmmT1 +# psrldq \$8, $xmmT1 # rshift by 8 bytes: move upper 64 bits to lower +# movq $xmmT1, %r10 # high latency +# movq %r8, %r9 +# movq %r10, %r11 +# shrq \$32, %r9 +# shrq \$32, %r11 +# ^^^ slower than passing the results on stack (!!!) +echo " + movaps $xmmW0, $xmmT2 + paddd $xmmRCONST, $xmmT2 + movups $xmmT2, $dstmem +" } -# It's possible to interleave insns in rounds to mostly eliminate +# It's possible to interleave integer insns in rounds to mostly eliminate # dependency chains, but this likely to only help old Pentium-based # CPUs (ones without OOO, which can only simultaneously execute a pair # of _adjacent_ insns). @@ -107,21 +259,16 @@ local n0=$(((n+0) & 15)) echo " # $n ";test $n0 = 0 && echo " - # W[0], already in %esi + leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n] ";test $n0 != 0 && test $n0 -lt 8 && echo " - movl `W32 $n0`, %esi # W[n] + addl -64+4*$n0(%rsp), %e$e # e += RCONST + W[n] ";test $n0 -ge 8 && echo " - # W[n], in %r$n0 + leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n] ";echo " movl %e$c, %edi # c xorl %e$d, %edi # ^d andl %e$b, %edi # &b xorl %e$d, %edi # (((c ^ d) & b) ^ d) -";test $n0 -lt 8 && echo " - leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n] -";test $n0 -ge 8 && echo " - leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n] -";echo " addl %edi, %e$e # e += (((c ^ d) & b) ^ d) movl %e$a, %esi # roll \$5, %esi # rotl32(a,5) @@ -138,28 +285,11 @@ local n2=$(((n+2) & 15)) local n0=$(((n+0) & 15)) echo " # $n -";test $n0 -lt 8 && echo " - movl `W32 $n13`, %esi # W[(n+13) & 15] - xorl `W32 $n8`, %esi # ^W[(n+8) & 15] - xorl `W32 $n2`, %esi # ^W[(n+2) & 15] - xorl `W32 $n0`, %esi # ^W[n & 15] - roll %esi # - movl %esi, `W32 $n0` # store to W[n & 15] -";test $n0 -ge 8 && echo " - xorl `W32 $n13`, `W32 $n0` # W[n & 15] ^= W[(n+13) & 15] - xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15] - xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15] - roll `W32 $n0` # -";echo " movl %e$c, %edi # c xorl %e$d, %edi # ^d andl %e$b, %edi # &b xorl %e$d, %edi # (((c ^ d) & b) ^ d) -";test $n0 -lt 8 && echo " - leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n & 15] -";test $n0 -ge 8 && echo " - leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n & 15] -";echo " + addl -64+4*$n0(%rsp), %e$e # e += RCONST + W[n & 15] addl %edi, %e$e # e += (((c ^ d) & b) ^ d) movl %e$a, %esi # roll \$5, %esi # rotl32(a,5) @@ -167,13 +297,6 @@ echo " rorl \$2, %e$b # b = rotl32(b,30) " } -{ -RCONST=0x5A827999 -RD1A ax bx cx dx bp 0; RD1A bp ax bx cx dx 1; RD1A dx bp ax bx cx 2; RD1A cx dx bp ax bx 3; RD1A bx cx dx bp ax 4 -RD1A ax bx cx dx bp 5; RD1A bp ax bx cx dx 6; RD1A dx bp ax bx cx 7; RD1A cx dx bp ax bx 8; RD1A bx cx dx bp ax 9 -RD1A ax bx cx dx bp 10; RD1A bp ax bx cx dx 11; RD1A dx bp ax bx cx 12; RD1A cx dx bp ax bx 13; RD1A bx cx dx bp ax 14 -RD1A ax bx cx dx bp 15; RD1B bp ax bx cx dx 16; RD1B dx bp ax bx cx 17; RD1B cx dx bp ax bx 18; RD1B bx cx dx bp ax 19 -} | grep -v '^$' RD2() { local a=$1;local b=$2;local c=$3;local d=$4;local e=$5 @@ -184,27 +307,10 @@ local n2=$(((n+2) & 15)) local n0=$(((n+0) & 15)) echo " # $n -";test $n0 -lt 8 && echo " - movl `W32 $n13`, %esi # W[(n+13) & 15] - xorl `W32 $n8`, %esi # ^W[(n+8) & 15] - xorl `W32 $n2`, %esi # ^W[(n+2) & 15] - xorl `W32 $n0`, %esi # ^W[n & 15] - roll %esi # - movl %esi, `W32 $n0` # store to W[n & 15] -";test $n0 -ge 8 && echo " - xorl `W32 $n13`, `W32 $n0` # W[n & 15] ^= W[(n+13) & 15] - xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15] - xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15] - roll `W32 $n0` # -";echo " movl %e$c, %edi # c xorl %e$d, %edi # ^d xorl %e$b, %edi # ^b -";test $n0 -lt 8 && echo " - leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n & 15] -";test $n0 -ge 8 && echo " - leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n & 15] -";echo " + addl -64+4*$n0(%rsp), %e$e # e += RCONST + W[n & 15] addl %edi, %e$e # e += (c ^ d ^ b) movl %e$a, %esi # roll \$5, %esi # rotl32(a,5) @@ -212,13 +318,6 @@ echo " rorl \$2, %e$b # b = rotl32(b,30) " } -{ -RCONST=0x6ED9EBA1 -RD2 ax bx cx dx bp 20; RD2 bp ax bx cx dx 21; RD2 dx bp ax bx cx 22; RD2 cx dx bp ax bx 23; RD2 bx cx dx bp ax 24 -RD2 ax bx cx dx bp 25; RD2 bp ax bx cx dx 26; RD2 dx bp ax bx cx 27; RD2 cx dx bp ax bx 28; RD2 bx cx dx bp ax 29 -RD2 ax bx cx dx bp 30; RD2 bp ax bx cx dx 31; RD2 dx bp ax bx cx 32; RD2 cx dx bp ax bx 33; RD2 bx cx dx bp ax 34 -RD2 ax bx cx dx bp 35; RD2 bp ax bx cx dx 36; RD2 dx bp ax bx cx 37; RD2 cx dx bp ax bx 38; RD2 bx cx dx bp ax 39 -} | grep -v '^$' RD3() { local a=$1;local b=$2;local c=$3;local d=$4;local e=$5 @@ -235,53 +334,82 @@ echo " andl %e$c, %esi # si: b & c andl %e$d, %edi # di: (b | c) & d orl %esi, %edi # ((b | c) & d) | (b & c) -";test $n0 -lt 8 && echo " - movl `W32 $n13`, %esi # W[(n+13) & 15] - xorl `W32 $n8`, %esi # ^W[(n+8) & 15] - xorl `W32 $n2`, %esi # ^W[(n+2) & 15] - xorl `W32 $n0`, %esi # ^W[n & 15] - roll %esi # - movl %esi, `W32 $n0` # store to W[n & 15] -";test $n0 -ge 8 && echo " - xorl `W32 $n13`, `W32 $n0` # W[n & 15] ^= W[(n+13) & 15] - xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15] - xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15] - roll `W32 $n0` # -";echo " addl %edi, %e$e # += ((b | c) & d) | (b & c) -";test $n0 -lt 8 && echo " - leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n & 15] -";test $n0 -ge 8 && echo " - leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n & 15] -";echo " + addl -64+4*$n0(%rsp), %e$e # e += RCONST + W[n & 15] movl %e$a, %esi # roll \$5, %esi # rotl32(a,5) addl %esi, %e$e # e += rotl32(a,5) rorl \$2, %e$b # b = rotl32(b,30) " } + { -#RCONST=0x8F1BBCDC "out of range for signed 32bit displacement" -RCONST=-0x70E44324 -RD3 ax bx cx dx bp 40; RD3 bp ax bx cx dx 41; RD3 dx bp ax bx cx 42; RD3 cx dx bp ax bx 43; RD3 bx cx dx bp ax 44 -RD3 ax bx cx dx bp 45; RD3 bp ax bx cx dx 46; RD3 dx bp ax bx cx 47; RD3 cx dx bp ax bx 48; RD3 bx cx dx bp ax 49 -RD3 ax bx cx dx bp 50; RD3 bp ax bx cx dx 51; RD3 dx bp ax bx cx 52; RD3 cx dx bp ax bx 53; RD3 bx cx dx bp ax 54 -RD3 ax bx cx dx bp 55; RD3 bp ax bx cx dx 56; RD3 dx bp ax bx cx 57; RD3 cx dx bp ax bx 58; RD3 bx cx dx bp ax 59 -} | grep -v '^$' +# Round 1 +RCONST=0x5A827999 +RD1A ax bx cx dx bp 0; RD1A bp ax bx cx dx 1; RD1A dx bp ax bx cx 2; RD1A cx dx bp ax bx 3; +RD1A bx cx dx bp ax 4; RD1A ax bx cx dx bp 5; RD1A bp ax bx cx dx 6; RD1A dx bp ax bx cx 7; +a=`PREP %xmm0 %xmm1 %xmm2 %xmm3 "-64+16*0(%rsp)"` +b=`RD1A cx dx bp ax bx 8; RD1A bx cx dx bp ax 9; RD1A ax bx cx dx bp 10; RD1A bp ax bx cx dx 11;` +INTERLEAVE "$a" "$b" +a=`echo " movaps rconst0x6ED9EBA1(%rip), $xmmRCONST" + PREP %xmm1 %xmm2 %xmm3 %xmm0 "-64+16*1(%rsp)"` +b=`RD1A dx bp ax bx cx 12; RD1A cx dx bp ax bx 13; RD1A bx cx dx bp ax 14; RD1A ax bx cx dx bp 15;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm2 %xmm3 %xmm0 %xmm1 "-64+16*2(%rsp)"` +b=`RD1B bp ax bx cx dx 16; RD1B dx bp ax bx cx 17; RD1B cx dx bp ax bx 18; RD1B bx cx dx bp ax 19;` +INTERLEAVE "$a" "$b" + +# Round 2 +RCONST=0x6ED9EBA1 +a=`PREP %xmm3 %xmm0 %xmm1 %xmm2 "-64+16*3(%rsp)"` +b=`RD2 ax bx cx dx bp 20; RD2 bp ax bx cx dx 21; RD2 dx bp ax bx cx 22; RD2 cx dx bp ax bx 23;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm0 %xmm1 %xmm2 %xmm3 "-64+16*0(%rsp)"` +b=`RD2 bx cx dx bp ax 24; RD2 ax bx cx dx bp 25; RD2 bp ax bx cx dx 26; RD2 dx bp ax bx cx 27;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm1 %xmm2 %xmm3 %xmm0 "-64+16*1(%rsp)"` +b=`RD2 cx dx bp ax bx 28; RD2 bx cx dx bp ax 29; RD2 ax bx cx dx bp 30; RD2 bp ax bx cx dx 31;` +INTERLEAVE "$a" "$b" +a=`echo " movaps rconst0x8F1BBCDC(%rip), $xmmRCONST" + PREP %xmm2 %xmm3 %xmm0 %xmm1 "-64+16*2(%rsp)"` +b=`RD2 dx bp ax bx cx 32; RD2 cx dx bp ax bx 33; RD2 bx cx dx bp ax 34; RD2 ax bx cx dx bp 35;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm3 %xmm0 %xmm1 %xmm2 "-64+16*3(%rsp)"` +b=`RD2 bp ax bx cx dx 36; RD2 dx bp ax bx cx 37; RD2 cx dx bp ax bx 38; RD2 bx cx dx bp ax 39;` +INTERLEAVE "$a" "$b" + +# Round 3 +RCONST=0x8F1BBCDC +a=`PREP %xmm0 %xmm1 %xmm2 %xmm3 "-64+16*0(%rsp)"` +b=`RD3 ax bx cx dx bp 40; RD3 bp ax bx cx dx 41; RD3 dx bp ax bx cx 42; RD3 cx dx bp ax bx 43;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm1 %xmm2 %xmm3 %xmm0 "-64+16*1(%rsp)"` +b=`RD3 bx cx dx bp ax 44; RD3 ax bx cx dx bp 45; RD3 bp ax bx cx dx 46; RD3 dx bp ax bx cx 47;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm2 %xmm3 %xmm0 %xmm1 "-64+16*2(%rsp)"` +b=`RD3 cx dx bp ax bx 48; RD3 bx cx dx bp ax 49; RD3 ax bx cx dx bp 50; RD3 bp ax bx cx dx 51;` +INTERLEAVE "$a" "$b" +a=`echo " movaps rconst0xCA62C1D6(%rip), $xmmRCONST" + PREP %xmm3 %xmm0 %xmm1 %xmm2 "-64+16*3(%rsp)"` +b=`RD3 dx bp ax bx cx 52; RD3 cx dx bp ax bx 53; RD3 bx cx dx bp ax 54; RD3 ax bx cx dx bp 55;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm0 %xmm1 %xmm2 %xmm3 "-64+16*0(%rsp)"` +b=`RD3 bp ax bx cx dx 56; RD3 dx bp ax bx cx 57; RD3 cx dx bp ax bx 58; RD3 bx cx dx bp ax 59;` +INTERLEAVE "$a" "$b" # Round 4 has the same logic as round 2, only n and RCONST are different -{ -#RCONST=0xCA62C1D6 "out of range for signed 32bit displacement" -RCONST=-0x359D3E2A -RD2 ax bx cx dx bp 60; RD2 bp ax bx cx dx 61; RD2 dx bp ax bx cx 62; RD2 cx dx bp ax bx 63; RD2 bx cx dx bp ax 64 -RD2 ax bx cx dx bp 65; RD2 bp ax bx cx dx 66; RD2 dx bp ax bx cx 67; RD2 cx dx bp ax bx 68; RD2 bx cx dx bp ax 69 -RD2 ax bx cx dx bp 70; RD2 bp ax bx cx dx 71; RD2 dx bp ax bx cx 72; RD2 cx dx bp ax bx 73; RD2 bx cx dx bp ax 74 -RD2 ax bx cx dx bp 75; RD2 bp ax bx cx dx 76; RD2 dx bp ax bx cx 77; RD2 cx dx bp ax bx 78; RD2 bx cx dx bp ax 79 -# Note: new W[n&15] values generated in last 3 iterations -# (W[13,14,15]) are unused after each of these iterations. -# Since we use r8..r15 for W[8..15], this does not matter. -# If we switch to e.g. using r8..r15 for W[0..7], then saving of W[13,14,15] -# (the "movl %esi, `W32 $n0`" insn) is a dead store and can be removed. +RCONST=0xCA62C1D6 +a=`PREP %xmm1 %xmm2 %xmm3 %xmm0 "-64+16*1(%rsp)"` +b=`RD2 ax bx cx dx bp 60; RD2 bp ax bx cx dx 61; RD2 dx bp ax bx cx 62; RD2 cx dx bp ax bx 63;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm2 %xmm3 %xmm0 %xmm1 "-64+16*2(%rsp)"` +b=`RD2 bx cx dx bp ax 64; RD2 ax bx cx dx bp 65; RD2 bp ax bx cx dx 66; RD2 dx bp ax bx cx 67;` +INTERLEAVE "$a" "$b" +a=`PREP %xmm3 %xmm0 %xmm1 %xmm2 "-64+16*3(%rsp)"` +b=`RD2 cx dx bp ax bx 68; RD2 bx cx dx bp ax 69; RD2 ax bx cx dx bp 70; RD2 bp ax bx cx dx 71;` +INTERLEAVE "$a" "$b" +RD2 dx bp ax bx cx 72; RD2 cx dx bp ax bx 73; RD2 bx cx dx bp ax 74; RD2 ax bx cx dx bp 75; +RD2 bp ax bx cx dx 76; RD2 dx bp ax bx cx 77; RD2 cx dx bp ax bx 78; RD2 bx cx dx bp ax 79; } | grep -v '^$' echo " @@ -300,4 +428,28 @@ echo " ret .size sha1_process_block64, .-sha1_process_block64 + + .section .rodata.cst16.sha1const, \"aM\", @progbits, 16 + .align 16 +rconst0x5A827999: + .long 0x5A827999 + .long 0x5A827999 + .long 0x5A827999 + .long 0x5A827999 +rconst0x6ED9EBA1: + .long 0x6ED9EBA1 + .long 0x6ED9EBA1 + .long 0x6ED9EBA1 + .long 0x6ED9EBA1 +rconst0x8F1BBCDC: + .long 0x8F1BBCDC + .long 0x8F1BBCDC + .long 0x8F1BBCDC + .long 0x8F1BBCDC +rconst0xCA62C1D6: + .long 0xCA62C1D6 + .long 0xCA62C1D6 + .long 0xCA62C1D6 + .long 0xCA62C1D6 + #endif" |