diff options
Diffstat (limited to 'libbb/hash_md5_sha_x86-64.S')
| -rw-r--r-- | libbb/hash_md5_sha_x86-64.S | 129 |
1 files changed, 63 insertions, 66 deletions
diff --git a/libbb/hash_md5_sha_x86-64.S b/libbb/hash_md5_sha_x86-64.S index 287cfe5..51fde08 100644 --- a/libbb/hash_md5_sha_x86-64.S +++ b/libbb/hash_md5_sha_x86-64.S @@ -27,68 +27,60 @@ sha1_process_block64: # xmm7: all round constants # -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] - movl 88(%rdi), %ecx # c = ctx->hash[2] - movl 92(%rdi), %edx # d = ctx->hash[3] - movl 96(%rdi), %ebp # e = ctx->hash[4] - movaps sha1const(%rip), %xmm7 + movaps bswap32_mask(%rip), %xmm4 pshufd $0x00, %xmm7, %xmm6 - # Load W[] to xmm registers, byteswapping on the fly. + # Load W[] to xmm0..3, byteswapping on the fly. # - # For iterations 0..15, we pass W[] in rsi,r8..r14 + # For iterations 0..15, we pass RCONST+W[] in rsi,r8..r14 # for use in RD1As instead of spilling them to stack. - # We lose parallelized addition of RCONST, but LEA - # can do two additions at once, so it is probably a wash. # (We use rsi instead of rN because this makes two - # LEAs in two first RD1As shorter by one byte). - movq 4*0(%rdi), %rsi - movq 4*2(%rdi), %r8 - bswapq %rsi - bswapq %r8 - rolq $32, %rsi # rsi = W[1]:W[0] - rolq $32, %r8 # r8 = W[3]:W[2] - movq %rsi, %xmm0 - movq %r8, %xmm4 - punpcklqdq %xmm4, %xmm0 # xmm0 = r8:rsi = (W[0],W[1],W[2],W[3]) -# movaps %xmm0, %xmm4 # add RCONST, spill to stack -# paddd %xmm6, %xmm4 -# movups %xmm4, -64+16*0(%rsp) + # ADDs in two first RD1As shorter by one byte). + movups 16*0(%rdi), %xmm0 + pshufb %xmm4, %xmm0 + movaps %xmm0, %xmm5 + paddd %xmm6, %xmm5 + movq %xmm5, %rsi +# pextrq $1, %xmm5, %r8 #SSE4.1 insn +# movhpd %xmm5, %r8 #can only move to mem, not to reg + shufps $0x0e, %xmm5, %xmm5 + movq %xmm5, %r8 + + movups 16*1(%rdi), %xmm1 + pshufb %xmm4, %xmm1 + movaps %xmm1, %xmm5 + paddd %xmm6, %xmm5 + movq %xmm5, %r9 + shufps $0x0e, %xmm5, %xmm5 + movq %xmm5, %r10 - movq 4*4(%rdi), %r9 - movq 4*6(%rdi), %r10 - bswapq %r9 - bswapq %r10 - rolq $32, %r9 # r9 = W[5]:W[4] - rolq $32, %r10 # r10 = W[7]:W[6] - movq %r9, %xmm1 - movq %r10, %xmm4 - punpcklqdq %xmm4, %xmm1 # xmm1 = r10:r9 = (W[4],W[5],W[6],W[7]) + movups 16*2(%rdi), %xmm2 + pshufb %xmm4, %xmm2 + movaps %xmm2, %xmm5 + paddd %xmm6, %xmm5 + movq %xmm5, %r11 + shufps $0x0e, %xmm5, %xmm5 + movq %xmm5, %r12 - movq 4*8(%rdi), %r11 - movq 4*10(%rdi), %r12 - bswapq %r11 - bswapq %r12 - rolq $32, %r11 # r11 = W[9]:W[8] - rolq $32, %r12 # r12 = W[11]:W[10] - movq %r11, %xmm2 - movq %r12, %xmm4 - punpcklqdq %xmm4, %xmm2 # xmm2 = r12:r11 = (W[8],W[9],W[10],W[11]) + movups 16*3(%rdi), %xmm3 + pshufb %xmm4, %xmm3 + movaps %xmm3, %xmm5 + paddd %xmm6, %xmm5 + movq %xmm5, %r13 + shufps $0x0e, %xmm5, %xmm5 + movq %xmm5, %r14 - movq 4*12(%rdi), %r13 - movq 4*14(%rdi), %r14 - bswapq %r13 - bswapq %r14 - rolq $32, %r13 # r13 = W[13]:W[12] - rolq $32, %r14 # r14 = W[15]:W[14] - movq %r13, %xmm3 - movq %r14, %xmm4 - punpcklqdq %xmm4, %xmm3 # xmm3 = r14:r13 = (W[12],W[13],W[14],W[15]) + # MOVQs to GPRs (above) have somewhat high latency. + # Load hash[] while they are completing: + movl 80(%rdi), %eax # a = ctx->hash[0] + movl 84(%rdi), %ebx # b = ctx->hash[1] + movl 88(%rdi), %ecx # c = ctx->hash[2] + movl 92(%rdi), %edx # d = ctx->hash[3] + movl 96(%rdi), %ebp # e = ctx->hash[4] # 0 - leal 0x5A827999(%rbp,%rsi), %ebp # e += RCONST + W[n] + addl %esi, %ebp # e += RCONST + W[n] shrq $32, %rsi movl %ecx, %edi # c xorl %edx, %edi # ^d @@ -100,7 +92,7 @@ sha1_process_block64: addl %edi, %ebp # e += rotl32(a,5) rorl $2, %ebx # b = rotl32(b,30) # 1 - leal 0x5A827999(%rdx,%rsi), %edx # e += RCONST + W[n] + addl %esi, %edx # e += RCONST + W[n] movl %ebx, %edi # c xorl %ecx, %edi # ^d andl %eax, %edi # &b @@ -111,7 +103,7 @@ sha1_process_block64: addl %edi, %edx # e += rotl32(a,5) rorl $2, %eax # b = rotl32(b,30) # 2 - leal 0x5A827999(%rcx,%r8), %ecx # e += RCONST + W[n] + addl %r8d, %ecx # e += RCONST + W[n] shrq $32, %r8 movl %eax, %edi # c xorl %ebx, %edi # ^d @@ -123,7 +115,7 @@ sha1_process_block64: addl %edi, %ecx # e += rotl32(a,5) rorl $2, %ebp # b = rotl32(b,30) # 3 - leal 0x5A827999(%rbx,%r8), %ebx # e += RCONST + W[n] + addl %r8d, %ebx # e += RCONST + W[n] movl %ebp, %edi # c xorl %eax, %edi # ^d andl %edx, %edi # &b @@ -134,7 +126,7 @@ sha1_process_block64: addl %edi, %ebx # e += rotl32(a,5) rorl $2, %edx # b = rotl32(b,30) # 4 - leal 0x5A827999(%rax,%r9), %eax # e += RCONST + W[n] + addl %r9d, %eax # e += RCONST + W[n] shrq $32, %r9 movl %edx, %edi # c xorl %ebp, %edi # ^d @@ -146,7 +138,7 @@ sha1_process_block64: addl %edi, %eax # e += rotl32(a,5) rorl $2, %ecx # b = rotl32(b,30) # 5 - leal 0x5A827999(%rbp,%r9), %ebp # e += RCONST + W[n] + addl %r9d, %ebp # e += RCONST + W[n] movl %ecx, %edi # c xorl %edx, %edi # ^d andl %ebx, %edi # &b @@ -157,7 +149,7 @@ sha1_process_block64: addl %edi, %ebp # e += rotl32(a,5) rorl $2, %ebx # b = rotl32(b,30) # 6 - leal 0x5A827999(%rdx,%r10), %edx # e += RCONST + W[n] + addl %r10d, %edx # e += RCONST + W[n] shrq $32, %r10 movl %ebx, %edi # c xorl %ecx, %edi # ^d @@ -169,7 +161,7 @@ sha1_process_block64: addl %edi, %edx # e += rotl32(a,5) rorl $2, %eax # b = rotl32(b,30) # 7 - leal 0x5A827999(%rcx,%r10), %ecx # e += RCONST + W[n] + addl %r10d, %ecx # e += RCONST + W[n] movl %eax, %edi # c xorl %ebx, %edi # ^d andl %ebp, %edi # &b @@ -210,7 +202,7 @@ sha1_process_block64: paddd %xmm6, %xmm5 movups %xmm5, -64+16*0(%rsp) # 8 - leal 0x5A827999(%rbx,%r11), %ebx # e += RCONST + W[n] + addl %r11d, %ebx # e += RCONST + W[n] shrq $32, %r11 movl %ebp, %edi # c xorl %eax, %edi # ^d @@ -222,7 +214,7 @@ sha1_process_block64: addl %edi, %ebx # e += rotl32(a,5) rorl $2, %edx # b = rotl32(b,30) # 9 - leal 0x5A827999(%rax,%r11), %eax # e += RCONST + W[n] + addl %r11d, %eax # e += RCONST + W[n] movl %edx, %edi # c xorl %ebp, %edi # ^d andl %ecx, %edi # &b @@ -233,7 +225,7 @@ sha1_process_block64: addl %edi, %eax # e += rotl32(a,5) rorl $2, %ecx # b = rotl32(b,30) # 10 - leal 0x5A827999(%rbp,%r12), %ebp # e += RCONST + W[n] + addl %r12d, %ebp # e += RCONST + W[n] shrq $32, %r12 movl %ecx, %edi # c xorl %edx, %edi # ^d @@ -245,7 +237,7 @@ sha1_process_block64: addl %edi, %ebp # e += rotl32(a,5) rorl $2, %ebx # b = rotl32(b,30) # 11 - leal 0x5A827999(%rdx,%r12), %edx # e += RCONST + W[n] + addl %r12d, %edx # e += RCONST + W[n] movl %ebx, %edi # c xorl %ecx, %edi # ^d andl %eax, %edi # &b @@ -287,7 +279,7 @@ sha1_process_block64: paddd %xmm6, %xmm5 movups %xmm5, -64+16*1(%rsp) # 12 - leal 0x5A827999(%rcx,%r13), %ecx # e += RCONST + W[n] + addl %r13d, %ecx # e += RCONST + W[n] shrq $32, %r13 movl %eax, %edi # c xorl %ebx, %edi # ^d @@ -299,7 +291,7 @@ sha1_process_block64: addl %edi, %ecx # e += rotl32(a,5) rorl $2, %ebp # b = rotl32(b,30) # 13 - leal 0x5A827999(%rbx,%r13), %ebx # e += RCONST + W[n] + addl %r13d, %ebx # e += RCONST + W[n] movl %ebp, %edi # c xorl %eax, %edi # ^d andl %edx, %edi # &b @@ -310,7 +302,7 @@ sha1_process_block64: addl %edi, %ebx # e += rotl32(a,5) rorl $2, %edx # b = rotl32(b,30) # 14 - leal 0x5A827999(%rax,%r14), %eax # e += RCONST + W[n] + addl %r14d, %eax # e += RCONST + W[n] shrq $32, %r14 movl %edx, %edi # c xorl %ebp, %edi # ^d @@ -322,7 +314,7 @@ sha1_process_block64: addl %edi, %eax # e += rotl32(a,5) rorl $2, %ecx # b = rotl32(b,30) # 15 - leal 0x5A827999(%rbp,%r14), %ebp # e += RCONST + W[n] + addl %r14d, %ebp # e += RCONST + W[n] movl %ecx, %edi # c xorl %edx, %edi # ^d andl %ebx, %edi # &b @@ -1475,6 +1467,11 @@ sha1_process_block64: ret .size sha1_process_block64, .-sha1_process_block64 + .section .rodata.cst16.bswap32_mask, "aM", @progbits, 16 + .balign 16 +bswap32_mask: + .octa 0x0c0d0e0f08090a0b0405060700010203 + .section .rodata.cst16.sha1const, "aM", @progbits, 16 .balign 16 sha1const: |