diff options
Diffstat (limited to 'sysdeps/x86_64/wcslen.S')
| -rw-r--r-- | sysdeps/x86_64/wcslen.S | 216 |
1 files changed, 2 insertions, 214 deletions
diff --git a/sysdeps/x86_64/wcslen.S b/sysdeps/x86_64/wcslen.S index d641141d75..588a0fbe01 100644 --- a/sysdeps/x86_64/wcslen.S +++ b/sysdeps/x86_64/wcslen.S @@ -16,218 +16,6 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#include <sysdep.h> - - .text -ENTRY (__wcslen) - cmpl $0, (%rdi) - jz L(exit_tail0) - cmpl $0, 4(%rdi) - jz L(exit_tail1) - cmpl $0, 8(%rdi) - jz L(exit_tail2) - cmpl $0, 12(%rdi) - jz L(exit_tail3) - cmpl $0, 16(%rdi) - jz L(exit_tail4) - cmpl $0, 20(%rdi) - jz L(exit_tail5) - cmpl $0, 24(%rdi) - jz L(exit_tail6) - cmpl $0, 28(%rdi) - jz L(exit_tail7) - - pxor %xmm0, %xmm0 - - lea 32(%rdi), %rax - addq $16, %rdi - and $-16, %rax - - pcmpeqd (%rax), %xmm0 - pmovmskb %xmm0, %edx - pxor %xmm1, %xmm1 - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm1 - pmovmskb %xmm1, %edx - pxor %xmm2, %xmm2 - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm2 - pmovmskb %xmm2, %edx - pxor %xmm3, %xmm3 - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm3 - pmovmskb %xmm3, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm0 - pmovmskb %xmm0, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm1 - pmovmskb %xmm1, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm2 - pmovmskb %xmm2, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm3 - pmovmskb %xmm3, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm0 - pmovmskb %xmm0, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm1 - pmovmskb %xmm1, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm2 - pmovmskb %xmm2, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - pcmpeqd (%rax), %xmm3 - pmovmskb %xmm3, %edx - addq $16, %rax - test %edx, %edx - jnz L(exit) - - and $-0x40, %rax - - .p2align 4 -L(aligned_64_loop): - movaps (%rax), %xmm0 - movaps 16(%rax), %xmm1 - movaps 32(%rax), %xmm2 - movaps 48(%rax), %xmm6 - - pminub %xmm1, %xmm0 - pminub %xmm6, %xmm2 - pminub %xmm0, %xmm2 - pcmpeqd %xmm3, %xmm2 - pmovmskb %xmm2, %edx - addq $64, %rax - test %edx, %edx - jz L(aligned_64_loop) - - pcmpeqd -64(%rax), %xmm3 - pmovmskb %xmm3, %edx - addq $48, %rdi - test %edx, %edx - jnz L(exit) - - pcmpeqd %xmm1, %xmm3 - pmovmskb %xmm3, %edx - addq $-16, %rdi - test %edx, %edx - jnz L(exit) - - pcmpeqd -32(%rax), %xmm3 - pmovmskb %xmm3, %edx - addq $-16, %rdi - test %edx, %edx - jnz L(exit) - - pcmpeqd %xmm6, %xmm3 - pmovmskb %xmm3, %edx - addq $-16, %rdi - test %edx, %edx - jz L(aligned_64_loop) - - .p2align 4 -L(exit): - sub %rdi, %rax - shr $2, %rax - test %dl, %dl - jz L(exit_high) - - andl $15, %edx - jz L(exit_1) - ret - - /* No align here. Naturally aligned % 16 == 1. */ -L(exit_high): - andl $(15 << 8), %edx - jz L(exit_3) - add $2, %rax - ret - - .p2align 3 -L(exit_1): - add $1, %rax - ret - - .p2align 3 -L(exit_3): - add $3, %rax - ret - - .p2align 3 -L(exit_tail0): - xorl %eax, %eax - ret - - .p2align 3 -L(exit_tail1): - movl $1, %eax - ret - - .p2align 3 -L(exit_tail2): - movl $2, %eax - ret - - .p2align 3 -L(exit_tail3): - movl $3, %eax - ret - - .p2align 3 -L(exit_tail4): - movl $4, %eax - ret - - .p2align 3 -L(exit_tail5): - movl $5, %eax - ret - - .p2align 3 -L(exit_tail6): - movl $6, %eax - ret - - .p2align 3 -L(exit_tail7): - movl $7, %eax - ret - -END (__wcslen) - +#define WCSLEN __wcslen +#include "multiarch/wcslen-sse2.S" weak_alias(__wcslen, wcslen) |