diff options
Diffstat (limited to 'crypto/bn/asm/x86_64-mont.pl')
| -rwxr-xr-x | crypto/bn/asm/x86_64-mont.pl | 39 |
1 files changed, 6 insertions, 33 deletions
diff --git a/crypto/bn/asm/x86_64-mont.pl b/crypto/bn/asm/x86_64-mont.pl index e82e451388..69232cbeb6 100755 --- a/crypto/bn/asm/x86_64-mont.pl +++ b/crypto/bn/asm/x86_64-mont.pl @@ -775,20 +775,20 @@ bn_sqr8x_mont: # 4096. this is done to allow memory disambiguation logic # do its job. # - lea -64(%rsp,$num,4),%r11 + lea -64(%rsp,$num,2),%r11 mov ($n0),$n0 # *n0 sub $aptr,%r11 and \$4095,%r11 cmp %r11,%r10 jb .Lsqr8x_sp_alt sub %r11,%rsp # align with $aptr - lea -64(%rsp,$num,4),%rsp # alloca(frame+4*$num) + lea -64(%rsp,$num,2),%rsp # alloca(frame+2*$num) jmp .Lsqr8x_sp_done .align 32 .Lsqr8x_sp_alt: - lea 4096-64(,$num,4),%r10 # 4096-frame-4*$num - lea -64(%rsp,$num,4),%rsp # alloca(frame+4*$num) + lea 4096-64(,$num,2),%r10 # 4096-frame-2*$num + lea -64(%rsp,$num,2),%rsp # alloca(frame+2*$num) sub %r10,%r11 mov \$0,%r10 cmovc %r10,%r11 @@ -798,37 +798,17 @@ bn_sqr8x_mont: mov $num,%r10 neg $num - lea 64(%rsp,$num,2),%r11 # copy of modulus mov $n0, 32(%rsp) mov %rax, 40(%rsp) # save original %rsp .Lsqr8x_body: - mov $num,$i - movq %r11, %xmm2 # save pointer to modulus copy - shr \$3+2,$i - mov OPENSSL_ia32cap_P+8(%rip),%eax - jmp .Lsqr8x_copy_n - -.align 32 -.Lsqr8x_copy_n: - movq 8*0($nptr),%xmm0 - movq 8*1($nptr),%xmm1 - movq 8*2($nptr),%xmm3 - movq 8*3($nptr),%xmm4 - lea 8*4($nptr),$nptr - movdqa %xmm0,16*0(%r11) - movdqa %xmm1,16*1(%r11) - movdqa %xmm3,16*2(%r11) - movdqa %xmm4,16*3(%r11) - lea 16*4(%r11),%r11 - dec $i - jnz .Lsqr8x_copy_n - + movq $nptr, %xmm2 # save pointer to modulus pxor %xmm0,%xmm0 movq $rptr,%xmm1 # save $rptr movq %r10, %xmm3 # -$num ___ $code.=<<___ if ($addx); + mov OPENSSL_ia32cap_P+8(%rip),%eax and \$0x80100,%eax cmp \$0x80100,%eax jne .Lsqr8x_nox @@ -837,7 +817,6 @@ $code.=<<___ if ($addx); pxor %xmm0,%xmm0 lea 48(%rsp),%rax - lea 64(%rsp,$num,2),%rdx shr \$3+2,$num mov 40(%rsp),%rsi # restore %rsp jmp .Lsqr8x_zero @@ -850,7 +829,6 @@ $code.=<<___; pxor %xmm0,%xmm0 lea 48(%rsp),%rax - lea 64(%rsp,$num,2),%rdx shr \$3+2,$num mov 40(%rsp),%rsi # restore %rsp jmp .Lsqr8x_zero @@ -862,11 +840,6 @@ $code.=<<___; movdqa %xmm0,16*2(%rax) movdqa %xmm0,16*3(%rax) lea 16*4(%rax),%rax - movdqa %xmm0,16*0(%rdx) # wipe n - movdqa %xmm0,16*1(%rdx) - movdqa %xmm0,16*2(%rdx) - movdqa %xmm0,16*3(%rdx) - lea 16*4(%rdx),%rdx dec $num jnz .Lsqr8x_zero |