124a542aa4
Change-Id: I22a600e7f172681cfd38ff73a64e3fd07b284959 Signed-off-by: Lu, Hongjiu <hongjiu.lu@intel.com> Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
370 lines
5.5 KiB
ArmAsm
370 lines
5.5 KiB
ArmAsm
#define STRLEN sse2_strlen_atom
|
|
|
|
#ifndef L
|
|
# define L(label) .L##label
|
|
#endif
|
|
|
|
#ifndef cfi_startproc
|
|
# define cfi_startproc .cfi_startproc
|
|
#endif
|
|
|
|
#ifndef cfi_endproc
|
|
# define cfi_endproc .cfi_endproc
|
|
#endif
|
|
|
|
#ifndef cfi_rel_offset
|
|
# define cfi_rel_offset(reg, off) .cfi_rel_offset reg, off
|
|
#endif
|
|
|
|
#ifndef cfi_restore
|
|
# define cfi_restore(reg) .cfi_restore reg
|
|
#endif
|
|
|
|
#ifndef cfi_adjust_cfa_offset
|
|
# define cfi_adjust_cfa_offset(off) .cfi_adjust_cfa_offset off
|
|
#endif
|
|
|
|
#ifndef cfi_remember_state
|
|
# define cfi_remember_state .cfi_remember_state
|
|
#endif
|
|
|
|
#ifndef cfi_restore_state
|
|
# define cfi_restore_state .cfi_restore_state
|
|
#endif
|
|
|
|
#ifndef ENTRY
|
|
# define ENTRY(name) \
|
|
.type name, @function; \
|
|
.globl name; \
|
|
.p2align 4; \
|
|
name: \
|
|
cfi_startproc
|
|
#endif
|
|
|
|
#ifndef END
|
|
# define END(name) \
|
|
cfi_endproc; \
|
|
.size name, .-name
|
|
#endif
|
|
|
|
#define CFI_PUSH(REG) \
|
|
cfi_adjust_cfa_offset (4); \
|
|
cfi_rel_offset (REG, 0)
|
|
|
|
#define CFI_POP(REG) \
|
|
cfi_adjust_cfa_offset (-4); \
|
|
cfi_restore (REG)
|
|
|
|
#define PUSH(REG) pushl REG; CFI_PUSH (REG)
|
|
#define POP(REG) popl REG; CFI_POP (REG)
|
|
#define PARMS 4
|
|
#define STR PARMS
|
|
#define ENTRANCE
|
|
#define RETURN ret
|
|
|
|
.text
|
|
ENTRY (STRLEN)
|
|
ENTRANCE
|
|
mov STR(%esp), %edx
|
|
xor %eax, %eax
|
|
cmpb $0, (%edx)
|
|
jz L(exit_tail0)
|
|
cmpb $0, 1(%edx)
|
|
jz L(exit_tail1)
|
|
cmpb $0, 2(%edx)
|
|
jz L(exit_tail2)
|
|
cmpb $0, 3(%edx)
|
|
jz L(exit_tail3)
|
|
cmpb $0, 4(%edx)
|
|
jz L(exit_tail4)
|
|
cmpb $0, 5(%edx)
|
|
jz L(exit_tail5)
|
|
cmpb $0, 6(%edx)
|
|
jz L(exit_tail6)
|
|
cmpb $0, 7(%edx)
|
|
jz L(exit_tail7)
|
|
cmpb $0, 8(%edx)
|
|
jz L(exit_tail8)
|
|
cmpb $0, 9(%edx)
|
|
jz L(exit_tail9)
|
|
cmpb $0, 10(%edx)
|
|
jz L(exit_tail10)
|
|
cmpb $0, 11(%edx)
|
|
jz L(exit_tail11)
|
|
cmpb $0, 12(%edx)
|
|
jz L(exit_tail12)
|
|
cmpb $0, 13(%edx)
|
|
jz L(exit_tail13)
|
|
cmpb $0, 14(%edx)
|
|
jz L(exit_tail14)
|
|
cmpb $0, 15(%edx)
|
|
jz L(exit_tail15)
|
|
pxor %xmm0, %xmm0
|
|
mov %edx, %eax
|
|
mov %edx, %ecx
|
|
and $-16, %eax
|
|
add $16, %ecx
|
|
add $16, %eax
|
|
|
|
pcmpeqb (%eax), %xmm0
|
|
pmovmskb %xmm0, %edx
|
|
pxor %xmm1, %xmm1
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm1
|
|
pmovmskb %xmm1, %edx
|
|
pxor %xmm2, %xmm2
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
|
|
pcmpeqb (%eax), %xmm2
|
|
pmovmskb %xmm2, %edx
|
|
pxor %xmm3, %xmm3
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm3
|
|
pmovmskb %xmm3, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm0
|
|
pmovmskb %xmm0, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm1
|
|
pmovmskb %xmm1, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm2
|
|
pmovmskb %xmm2, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm3
|
|
pmovmskb %xmm3, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm0
|
|
pmovmskb %xmm0, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm1
|
|
pmovmskb %xmm1, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm2
|
|
pmovmskb %xmm2, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm3
|
|
pmovmskb %xmm3, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm0
|
|
pmovmskb %xmm0, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm1
|
|
pmovmskb %xmm1, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm2
|
|
pmovmskb %xmm2, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
pcmpeqb (%eax), %xmm3
|
|
pmovmskb %xmm3, %edx
|
|
test %edx, %edx
|
|
lea 16(%eax), %eax
|
|
jnz L(exit)
|
|
|
|
and $-0x40, %eax
|
|
PUSH (%esi)
|
|
PUSH (%edi)
|
|
PUSH (%ebx)
|
|
PUSH (%ebp)
|
|
xor %ebp, %ebp
|
|
L(aligned_64):
|
|
pcmpeqb (%eax), %xmm0
|
|
pcmpeqb 16(%eax), %xmm1
|
|
pcmpeqb 32(%eax), %xmm2
|
|
pcmpeqb 48(%eax), %xmm3
|
|
pmovmskb %xmm0, %edx
|
|
pmovmskb %xmm1, %esi
|
|
pmovmskb %xmm2, %edi
|
|
pmovmskb %xmm3, %ebx
|
|
or %edx, %ebp
|
|
or %esi, %ebp
|
|
or %edi, %ebp
|
|
or %ebx, %ebp
|
|
lea 64(%eax), %eax
|
|
jz L(aligned_64)
|
|
L(48leave):
|
|
test %edx, %edx
|
|
jnz L(aligned_64_exit_16)
|
|
test %esi, %esi
|
|
jnz L(aligned_64_exit_32)
|
|
test %edi, %edi
|
|
jnz L(aligned_64_exit_48)
|
|
mov %ebx, %edx
|
|
lea (%eax), %eax
|
|
jmp L(aligned_64_exit)
|
|
L(aligned_64_exit_48):
|
|
lea -16(%eax), %eax
|
|
mov %edi, %edx
|
|
jmp L(aligned_64_exit)
|
|
L(aligned_64_exit_32):
|
|
lea -32(%eax), %eax
|
|
mov %esi, %edx
|
|
jmp L(aligned_64_exit)
|
|
L(aligned_64_exit_16):
|
|
lea -48(%eax), %eax
|
|
L(aligned_64_exit):
|
|
POP (%ebp)
|
|
POP (%ebx)
|
|
POP (%edi)
|
|
POP (%esi)
|
|
L(exit):
|
|
sub %ecx, %eax
|
|
test %dl, %dl
|
|
jz L(exit_high)
|
|
test $0x01, %dl
|
|
jnz L(exit_tail0)
|
|
|
|
test $0x02, %dl
|
|
jnz L(exit_tail1)
|
|
|
|
test $0x04, %dl
|
|
jnz L(exit_tail2)
|
|
|
|
test $0x08, %dl
|
|
jnz L(exit_tail3)
|
|
|
|
test $0x10, %dl
|
|
jnz L(exit_tail4)
|
|
|
|
test $0x20, %dl
|
|
jnz L(exit_tail5)
|
|
|
|
test $0x40, %dl
|
|
jnz L(exit_tail6)
|
|
add $7, %eax
|
|
L(exit_tail0):
|
|
RETURN
|
|
|
|
L(exit_high):
|
|
add $8, %eax
|
|
test $0x01, %dh
|
|
jnz L(exit_tail0)
|
|
|
|
test $0x02, %dh
|
|
jnz L(exit_tail1)
|
|
|
|
test $0x04, %dh
|
|
jnz L(exit_tail2)
|
|
|
|
test $0x08, %dh
|
|
jnz L(exit_tail3)
|
|
|
|
test $0x10, %dh
|
|
jnz L(exit_tail4)
|
|
|
|
test $0x20, %dh
|
|
jnz L(exit_tail5)
|
|
|
|
test $0x40, %dh
|
|
jnz L(exit_tail6)
|
|
add $7, %eax
|
|
RETURN
|
|
|
|
.p2align 4
|
|
L(exit_tail1):
|
|
add $1, %eax
|
|
RETURN
|
|
|
|
L(exit_tail2):
|
|
add $2, %eax
|
|
RETURN
|
|
|
|
L(exit_tail3):
|
|
add $3, %eax
|
|
RETURN
|
|
|
|
L(exit_tail4):
|
|
add $4, %eax
|
|
RETURN
|
|
|
|
L(exit_tail5):
|
|
add $5, %eax
|
|
RETURN
|
|
|
|
L(exit_tail6):
|
|
add $6, %eax
|
|
RETURN
|
|
|
|
L(exit_tail7):
|
|
add $7, %eax
|
|
RETURN
|
|
|
|
L(exit_tail8):
|
|
add $8, %eax
|
|
RETURN
|
|
|
|
L(exit_tail9):
|
|
add $9, %eax
|
|
RETURN
|
|
|
|
L(exit_tail10):
|
|
add $10, %eax
|
|
RETURN
|
|
|
|
L(exit_tail11):
|
|
add $11, %eax
|
|
RETURN
|
|
|
|
L(exit_tail12):
|
|
add $12, %eax
|
|
RETURN
|
|
|
|
L(exit_tail13):
|
|
add $13, %eax
|
|
RETURN
|
|
|
|
L(exit_tail14):
|
|
add $14, %eax
|
|
RETURN
|
|
|
|
L(exit_tail15):
|
|
add $15, %eax
|
|
ret
|
|
|
|
END (STRLEN)
|