libbb/sha1: x86_64 version: tidying up, no code changes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
parent
4387077f8e
commit
7abb2bb96e
@ -60,7 +60,7 @@ sha1_process_block64:
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xorl %edx, %edi # ^d
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andl %ebx, %edi # &b
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xorl %edx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rbp,%rsi),%ebp # e += RCONST + W[n]
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leal 0x5A827999(%rbp,%rsi), %ebp # e += RCONST + W[n]
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addl %edi, %ebp # e += (((c ^ d) & b) ^ d)
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movl %eax, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -72,7 +72,7 @@ sha1_process_block64:
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xorl %ecx, %edi # ^d
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andl %eax, %edi # &b
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xorl %ecx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rdx,%rsi),%edx # e += RCONST + W[n]
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leal 0x5A827999(%rdx,%rsi), %edx # e += RCONST + W[n]
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addl %edi, %edx # e += (((c ^ d) & b) ^ d)
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movl %ebp, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -84,7 +84,7 @@ sha1_process_block64:
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xorl %ebx, %edi # ^d
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andl %ebp, %edi # &b
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xorl %ebx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rcx,%rsi),%ecx # e += RCONST + W[n]
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leal 0x5A827999(%rcx,%rsi), %ecx # e += RCONST + W[n]
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addl %edi, %ecx # e += (((c ^ d) & b) ^ d)
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movl %edx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -96,7 +96,7 @@ sha1_process_block64:
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xorl %eax, %edi # ^d
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andl %edx, %edi # &b
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xorl %eax, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rbx,%rsi),%ebx # e += RCONST + W[n]
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leal 0x5A827999(%rbx,%rsi), %ebx # e += RCONST + W[n]
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addl %edi, %ebx # e += (((c ^ d) & b) ^ d)
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movl %ecx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -108,7 +108,7 @@ sha1_process_block64:
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xorl %ebp, %edi # ^d
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andl %ecx, %edi # &b
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xorl %ebp, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rax,%rsi),%eax # e += RCONST + W[n]
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leal 0x5A827999(%rax,%rsi), %eax # e += RCONST + W[n]
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addl %edi, %eax # e += (((c ^ d) & b) ^ d)
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movl %ebx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -120,7 +120,7 @@ sha1_process_block64:
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xorl %edx, %edi # ^d
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andl %ebx, %edi # &b
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xorl %edx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rbp,%rsi),%ebp # e += RCONST + W[n]
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leal 0x5A827999(%rbp,%rsi), %ebp # e += RCONST + W[n]
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addl %edi, %ebp # e += (((c ^ d) & b) ^ d)
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movl %eax, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -132,7 +132,7 @@ sha1_process_block64:
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xorl %ecx, %edi # ^d
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andl %eax, %edi # &b
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xorl %ecx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rdx,%rsi),%edx # e += RCONST + W[n]
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leal 0x5A827999(%rdx,%rsi), %edx # e += RCONST + W[n]
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addl %edi, %edx # e += (((c ^ d) & b) ^ d)
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movl %ebp, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -144,7 +144,7 @@ sha1_process_block64:
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xorl %ebx, %edi # ^d
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andl %ebp, %edi # &b
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xorl %ebx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rcx,%rsi),%ecx # e += RCONST + W[n]
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leal 0x5A827999(%rcx,%rsi), %ecx # e += RCONST + W[n]
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addl %edi, %ecx # e += (((c ^ d) & b) ^ d)
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movl %edx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -156,7 +156,7 @@ sha1_process_block64:
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xorl %eax, %edi # ^d
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andl %edx, %edi # &b
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xorl %eax, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rbx,%r8),%ebx # e += RCONST + W[n]
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leal 0x5A827999(%rbx,%r8), %ebx # e += RCONST + W[n]
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addl %edi, %ebx # e += (((c ^ d) & b) ^ d)
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movl %ecx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -168,7 +168,7 @@ sha1_process_block64:
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xorl %ebp, %edi # ^d
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andl %ecx, %edi # &b
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xorl %ebp, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rax,%r9),%eax # e += RCONST + W[n]
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leal 0x5A827999(%rax,%r9), %eax # e += RCONST + W[n]
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addl %edi, %eax # e += (((c ^ d) & b) ^ d)
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movl %ebx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -180,7 +180,7 @@ sha1_process_block64:
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xorl %edx, %edi # ^d
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andl %ebx, %edi # &b
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xorl %edx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rbp,%r10),%ebp # e += RCONST + W[n]
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leal 0x5A827999(%rbp,%r10), %ebp # e += RCONST + W[n]
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addl %edi, %ebp # e += (((c ^ d) & b) ^ d)
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movl %eax, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -192,7 +192,7 @@ sha1_process_block64:
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xorl %ecx, %edi # ^d
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andl %eax, %edi # &b
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xorl %ecx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rdx,%r11),%edx # e += RCONST + W[n]
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leal 0x5A827999(%rdx,%r11), %edx # e += RCONST + W[n]
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addl %edi, %edx # e += (((c ^ d) & b) ^ d)
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movl %ebp, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -204,7 +204,7 @@ sha1_process_block64:
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xorl %ebx, %edi # ^d
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andl %ebp, %edi # &b
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xorl %ebx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rcx,%r12),%ecx # e += RCONST + W[n]
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leal 0x5A827999(%rcx,%r12), %ecx # e += RCONST + W[n]
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addl %edi, %ecx # e += (((c ^ d) & b) ^ d)
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movl %edx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -216,7 +216,7 @@ sha1_process_block64:
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xorl %eax, %edi # ^d
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andl %edx, %edi # &b
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xorl %eax, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rbx,%r13),%ebx # e += RCONST + W[n]
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leal 0x5A827999(%rbx,%r13), %ebx # e += RCONST + W[n]
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addl %edi, %ebx # e += (((c ^ d) & b) ^ d)
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movl %ecx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -228,7 +228,7 @@ sha1_process_block64:
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xorl %ebp, %edi # ^d
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andl %ecx, %edi # &b
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xorl %ebp, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rax,%r14),%eax # e += RCONST + W[n]
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leal 0x5A827999(%rax,%r14), %eax # e += RCONST + W[n]
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addl %edi, %eax # e += (((c ^ d) & b) ^ d)
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movl %ebx, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -240,7 +240,7 @@ sha1_process_block64:
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xorl %edx, %edi # ^d
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andl %ebx, %edi # &b
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xorl %edx, %edi # (((c ^ d) & b) ^ d)
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leal 0x5A827999(%rbp,%r15),%ebp # e += RCONST + W[n]
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leal 0x5A827999(%rbp,%r15), %ebp # e += RCONST + W[n]
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addl %edi, %ebp # e += (((c ^ d) & b) ^ d)
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movl %eax, %esi #
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roll $5, %esi # rotl32(a,5)
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@ -74,22 +74,24 @@ test "$1" -ge 8 && echo "%r${1}d"
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RD1A() {
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local a=$1;local b=$2;local c=$3;local d=$4;local e=$5
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local n=$(($6))
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echo "# $n"
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test $n = 0 && echo "
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local n0=$(((n+0) & 15))
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echo "
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# $n
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";test $n0 = 0 && echo "
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# W[0], already in %esi
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";test $n != 0 && test $n -lt 8 && echo "
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movl `W32 $n`, %esi # W[n]
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";test $n -ge 8 && echo "
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# W[n], in %r$n
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";test $n0 != 0 && test $n0 -lt 8 && echo "
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movl `W32 $n0`, %esi # W[n]
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";test $n0 -ge 8 && echo "
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# W[n], in %r$n0
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";echo "
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movl %e$c, %edi # c
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xorl %e$d, %edi # ^d
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andl %e$b, %edi # &b
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xorl %e$d, %edi # (((c ^ d) & b) ^ d)
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";test $n -lt 8 && echo "
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leal $RCONST(%r$e,%rsi),%e$e # e += RCONST + W[n]
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";test $n -ge 8 && echo "
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leal $RCONST(%r$e,%r$n),%e$e # e += RCONST + W[n]
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";test $n0 -lt 8 && echo "
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leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n]
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";test $n0 -ge 8 && echo "
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leal $RCONST(%r$e,%r$n0), %e$e # e += RCONST + W[n]
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";echo "
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addl %edi, %e$e # e += (((c ^ d) & b) ^ d)
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movl %e$a, %esi #
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@ -119,7 +121,7 @@ echo "
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xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15]
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xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15]
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roll `W32 $n0` #
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"; echo "
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";echo "
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movl %e$c, %edi # c
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xorl %e$d, %edi # ^d
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andl %e$b, %edi # &b
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@ -165,7 +167,7 @@ echo "
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xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15]
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xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15]
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roll `W32 $n0` #
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"; echo "
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";echo "
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movl %e$c, %edi # c
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xorl %e$d, %edi # ^d
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xorl %e$b, %edi # ^b
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@ -216,7 +218,7 @@ echo "
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xorl `W32 $n8`, `W32 $n0` # ^W[(n+8) & 15]
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xorl `W32 $n2`, `W32 $n0` # ^W[(n+2) & 15]
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roll `W32 $n0` #
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"; echo "
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";echo "
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addl %edi, %e$e # += ((b | c) & d) | (b & c)
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";test $n0 -lt 8 && echo "
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leal $RCONST(%r$e,%rsi), %e$e # e += RCONST + W[n & 15]
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@ -246,6 +248,11 @@ RD2 ax bx cx dx bp 60; RD2 bp ax bx cx dx 61; RD2 dx bp ax bx cx 62; RD2 cx dx b
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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
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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
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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
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# Note: new W[n&15] values generated in last 3 iterations
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# (W[13,14,15]) are unused after each of these iterations.
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# Since we use r8..r15 for W[8..15], this does not matter.
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# If we switch to e.g. using r8..r15 for W[0..7], then saving of W[13,14,15]
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# (the "movl %esi, `W32 $n0`" insn) is a dead store and can be removed.
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} | grep -v '^$'
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echo "
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