( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";
-open OUT,"| \"$^X\" $xlate $flavour $output";
+open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
*STDOUT=*OUT;
if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
.type bn_mul_mont,\@function,6
.align 16
bn_mul_mont:
+ mov ${num}d,${num}d
+ mov %rsp,%rax
test \$3,${num}d
jnz .Lmul_enter
cmp \$8,${num}d
push %r14
push %r15
- mov ${num}d,${num}d
- lea 2($num),%r10
+ neg $num
mov %rsp,%r11
- neg %r10
- lea (%rsp,%r10,8),%rsp # tp=alloca(8*(num+2))
- and \$-1024,%rsp # minimize TLB usage
+ lea -16(%rsp,$num,8),%r10 # future alloca(8*(num+2))
+ neg $num # restore $num
+ and \$-1024,%r10 # minimize TLB usage
- mov %r11,8(%rsp,$num,8) # tp[num+1]=%rsp
-.Lmul_body:
# An OS-agnostic version of __chkstk.
#
# Some OSes (Windows) insist on stack being "wired" to
# be punishable by SEGV. But page walking can do good even on
# other OSes, because it guarantees that villain thread hits
# the guard page before it can make damage to innocent one...
- sub %rsp,%r11
+ sub %r10,%r11
and \$-4096,%r11
+ lea (%r10,%r11),%rsp
+ mov (%rsp),%r11
+ cmp %r10,%rsp
+ ja .Lmul_page_walk
+ jmp .Lmul_page_walk_done
+
+.align 16
.Lmul_page_walk:
- mov (%rsp,%r11),%r10
- sub \$4096,%r11
- .byte 0x66,0x2e # predict non-taken
- jnc .Lmul_page_walk
+ lea -4096(%rsp),%rsp
+ mov (%rsp),%r11
+ cmp %r10,%rsp
+ ja .Lmul_page_walk
+.Lmul_page_walk_done:
+ mov %rax,8(%rsp,$num,8) # tp[num+1]=%rsp
+.Lmul_body:
mov $bp,%r12 # reassign $bp
___
$bp="%r12";
mov 8(%rsp,$num,8),%rsi # restore %rsp
mov \$1,%rax
- mov (%rsi),%r15
- mov 8(%rsi),%r14
- mov 16(%rsi),%r13
- mov 24(%rsi),%r12
- mov 32(%rsi),%rbp
- mov 40(%rsi),%rbx
- lea 48(%rsi),%rsp
+ mov -48(%rsi),%r15
+ mov -40(%rsi),%r14
+ mov -32(%rsi),%r13
+ mov -24(%rsi),%r12
+ mov -16(%rsi),%rbp
+ mov -8(%rsi),%rbx
+ lea (%rsi),%rsp
.Lmul_epilogue:
ret
.size bn_mul_mont,.-bn_mul_mont
.type bn_mul4x_mont,\@function,6
.align 16
bn_mul4x_mont:
+ mov ${num}d,${num}d
+ mov %rsp,%rax
.Lmul4x_enter:
___
$code.=<<___ if ($addx);
push %r14
push %r15
- mov ${num}d,${num}d
- lea 4($num),%r10
+ neg $num
mov %rsp,%r11
- neg %r10
- lea (%rsp,%r10,8),%rsp # tp=alloca(8*(num+4))
- and \$-1024,%rsp # minimize TLB usage
+ lea -32(%rsp,$num,8),%r10 # future alloca(8*(num+4))
+ neg $num # restore
+ and \$-1024,%r10 # minimize TLB usage
- mov %r11,8(%rsp,$num,8) # tp[num+1]=%rsp
-.Lmul4x_body:
- sub %rsp,%r11
+ sub %r10,%r11
and \$-4096,%r11
+ lea (%r10,%r11),%rsp
+ mov (%rsp),%r11
+ cmp %r10,%rsp
+ ja .Lmul4x_page_walk
+ jmp .Lmul4x_page_walk_done
+
.Lmul4x_page_walk:
- mov (%rsp,%r11),%r10
- sub \$4096,%r11
- .byte 0x2e # predict non-taken
- jnc .Lmul4x_page_walk
+ lea -4096(%rsp),%rsp
+ mov (%rsp),%r11
+ cmp %r10,%rsp
+ ja .Lmul4x_page_walk
+.Lmul4x_page_walk_done:
+ mov %rax,8(%rsp,$num,8) # tp[num+1]=%rsp
+.Lmul4x_body:
mov $rp,16(%rsp,$num,8) # tp[num+2]=$rp
mov %rdx,%r12 # reassign $bp
___
$code.=<<___;
mov 8(%rsp,$num,8),%rsi # restore %rsp
mov \$1,%rax
- mov (%rsi),%r15
- mov 8(%rsi),%r14
- mov 16(%rsi),%r13
- mov 24(%rsi),%r12
- mov 32(%rsi),%rbp
- mov 40(%rsi),%rbx
- lea 48(%rsi),%rsp
+ mov -48(%rsi),%r15
+ mov -40(%rsi),%r14
+ mov -32(%rsi),%r13
+ mov -24(%rsi),%r12
+ mov -16(%rsi),%rbp
+ mov -8(%rsi),%rbx
+ lea (%rsi),%rsp
.Lmul4x_epilogue:
ret
.size bn_mul4x_mont,.-bn_mul4x_mont
.type bn_sqr8x_mont,\@function,6
.align 32
bn_sqr8x_mont:
-.Lsqr8x_enter:
mov %rsp,%rax
+.Lsqr8x_enter:
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
+.Lsqr8x_prologue:
mov ${num}d,%r10d
shl \$3,${num}d # convert $num to bytes
# do its job.
#
lea -64(%rsp,$num,2),%r11
+ mov %rsp,%rbp
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,2),%rsp # alloca(frame+2*$num)
+ sub %r11,%rbp # align with $aptr
+ lea -64(%rbp,$num,2),%rbp # future alloca(frame+2*$num)
jmp .Lsqr8x_sp_done
.align 32
.Lsqr8x_sp_alt:
lea 4096-64(,$num,2),%r10 # 4096-frame-2*$num
- lea -64(%rsp,$num,2),%rsp # alloca(frame+2*$num)
+ lea -64(%rbp,$num,2),%rbp # future alloca(frame+2*$num)
sub %r10,%r11
mov \$0,%r10
cmovc %r10,%r11
- sub %r11,%rsp
+ sub %r11,%rbp
.Lsqr8x_sp_done:
- and \$-64,%rsp
- mov %rax,%r11
- sub %rsp,%r11
+ and \$-64,%rbp
+ mov %rsp,%r11
+ sub %rbp,%r11
and \$-4096,%r11
+ lea (%rbp,%r11),%rsp
+ mov (%rsp),%r10
+ cmp %rbp,%rsp
+ ja .Lsqr8x_page_walk
+ jmp .Lsqr8x_page_walk_done
+
+.align 16
.Lsqr8x_page_walk:
- mov (%rsp,%r11),%r10
- sub \$4096,%r11
- .byte 0x2e # predict non-taken
- jnc .Lsqr8x_page_walk
+ lea -4096(%rsp),%rsp
+ mov (%rsp),%r10
+ cmp %rbp,%rsp
+ ja .Lsqr8x_page_walk
+.Lsqr8x_page_walk_done:
mov $num,%r10
neg $num
.type bn_mulx4x_mont,\@function,6
.align 32
bn_mulx4x_mont:
-.Lmulx4x_enter:
mov %rsp,%rax
+.Lmulx4x_enter:
push %rbx
push %rbp
push %r12
push %r13
push %r14
push %r15
+.Lmulx4x_prologue:
shl \$3,${num}d # convert $num to bytes
- .byte 0x67
xor %r10,%r10
sub $num,%r10 # -$num
mov ($n0),$n0 # *n0
- lea -72(%rsp,%r10),%rsp # alloca(frame+$num+8)
- and \$-128,%rsp
- mov %rax,%r11
- sub %rsp,%r11
+ lea -72(%rsp,%r10),%rbp # future alloca(frame+$num+8)
+ and \$-128,%rbp
+ mov %rsp,%r11
+ sub %rbp,%r11
and \$-4096,%r11
+ lea (%rbp,%r11),%rsp
+ mov (%rsp),%r10
+ cmp %rbp,%rsp
+ ja .Lmulx4x_page_walk
+ jmp .Lmulx4x_page_walk_done
+
+.align 16
.Lmulx4x_page_walk:
- mov (%rsp,%r11),%r10
- sub \$4096,%r11
- .byte 0x66,0x2e # predict non-taken
- jnc .Lmulx4x_page_walk
+ lea -4096(%rsp),%rsp
+ mov (%rsp),%r10
+ cmp %rbp,%rsp
+ ja .Lmulx4x_page_walk
+.Lmulx4x_page_walk_done:
lea ($bp,$num),%r10
##############################################################
mulx 2*8($aptr),%r15,%r13 # ...
adox -3*8($tptr),%r11
adcx %r15,%r12
- adox $zero,%r12
+ adox -2*8($tptr),%r12
adcx $zero,%r13
+ adox $zero,%r13
mov $bptr,8(%rsp) # off-load &b[i]
- .byte 0x67
mov $mi,%r15
imulq 24(%rsp),$mi # "t[0]"*n0
xor %ebp,%ebp # xor $zero,$zero # cf=0, of=0
mulx 3*8($aptr),%rax,%r14
mov $mi,%rdx
- adox -2*8($tptr),%r12
adcx %rax,%r13
adox -1*8($tptr),%r13
adcx $zero,%r14
mov 192($context),%r10 # pull $num
mov 8(%rax,%r10,8),%rax # pull saved stack pointer
- lea 48(%rax),%rax
- mov -8(%rax),%rbx
- mov -16(%rax),%rbp
- mov -24(%rax),%r12
- mov -32(%rax),%r13
- mov -40(%rax),%r14
- mov -48(%rax),%r15
- mov %rbx,144($context) # restore context->Rbx
- mov %rbp,160($context) # restore context->Rbp
- mov %r12,216($context) # restore context->R12
- mov %r13,224($context) # restore context->R13
- mov %r14,232($context) # restore context->R14
- mov %r15,240($context) # restore context->R15
-
- jmp .Lcommon_seh_tail
+ jmp .Lcommon_pop_regs
.size mul_handler,.-mul_handler
.type sqr_handler,\@abi-omnipotent
cmp %r10,%rbx # context->Rip<.Lsqr_body
jb .Lcommon_seh_tail
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # body label
+ cmp %r10,%rbx # context->Rip>=.Lsqr_epilogue
+ jb .Lcommon_pop_regs
+
mov 152($context),%rax # pull context->Rsp
- mov 4(%r11),%r10d # HandlerData[1]
+ mov 8(%r11),%r10d # HandlerData[2]
lea (%rsi,%r10),%r10 # epilogue label
cmp %r10,%rbx # context->Rip>=.Lsqr_epilogue
jae .Lcommon_seh_tail
mov 40(%rax),%rax # pull saved stack pointer
+.Lcommon_pop_regs:
mov -8(%rax),%rbx
mov -16(%rax),%rbp
mov -24(%rax),%r12
.LSEH_info_bn_sqr8x_mont:
.byte 9,0,0,0
.rva sqr_handler
- .rva .Lsqr8x_body,.Lsqr8x_epilogue # HandlerData[]
+ .rva .Lsqr8x_prologue,.Lsqr8x_body,.Lsqr8x_epilogue # HandlerData[]
+.align 8
___
$code.=<<___ if ($addx);
.LSEH_info_bn_mulx4x_mont:
.byte 9,0,0,0
.rva sqr_handler
- .rva .Lmulx4x_body,.Lmulx4x_epilogue # HandlerData[]
+ .rva .Lmulx4x_prologue,.Lmulx4x_body,.Lmulx4x_epilogue # HandlerData[]
+.align 8
___
}
projects / openssl.git / blobdiff