diff options
Diffstat (limited to 'sysdeps/x86_64/wcschr.S')
| -rw-r--r-- | sysdeps/x86_64/wcschr.S | 135 |
1 files changed, 2 insertions, 133 deletions
diff --git a/sysdeps/x86_64/wcschr.S b/sysdeps/x86_64/wcschr.S index 2131220382..80b12c4286 100644 --- a/sysdeps/x86_64/wcschr.S +++ b/sysdeps/x86_64/wcschr.S @@ -16,140 +16,9 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#include <sysdep.h> - - .text -ENTRY (__wcschr) - - movd %rsi, %xmm1 - pxor %xmm2, %xmm2 - mov %rdi, %rcx - punpckldq %xmm1, %xmm1 - punpckldq %xmm1, %xmm1 - - and $63, %rcx - cmp $48, %rcx - ja L(cross_cache) - - movdqu (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rdx - pmovmskb %xmm0, %rax - or %rax, %rdx - jnz L(matches) - - and $-16, %rdi - - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rdx - pmovmskb %xmm0, %rax - or %rax, %rdx - jnz L(matches) - - jmp L(loop) - -L(cross_cache): - and $15, %rcx - and $-16, %rdi - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rdx - pmovmskb %xmm0, %rax - - sar %cl, %rdx - sar %cl, %rax - test %rax, %rax - je L(unaligned_no_match) - - bsf %rax, %rax - test %rdx, %rdx - je L(unaligned_match) - bsf %rdx, %rdx - cmp %rdx, %rax - ja L(return_null) - -L(unaligned_match): - add %rdi, %rax - add %rcx, %rax - ret - - .p2align 4 -L(unaligned_no_match): - test %rdx, %rdx - jne L(return_null) - pxor %xmm2, %xmm2 - - add $16, %rdi - - .p2align 4 -/* Loop start on aligned string. */ -L(loop): - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rdx - pmovmskb %xmm0, %rax - or %rax, %rdx - jnz L(matches) - - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rdx - pmovmskb %xmm0, %rax - or %rax, %rdx - jnz L(matches) - - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rdx - pmovmskb %xmm0, %rax - or %rax, %rdx - jnz L(matches) - - movdqa (%rdi), %xmm0 - pcmpeqd %xmm0, %xmm2 - add $16, %rdi - pcmpeqd %xmm1, %xmm0 - pmovmskb %xmm2, %rdx - pmovmskb %xmm0, %rax - or %rax, %rdx - jnz L(matches) - jmp L(loop) - - .p2align 4 -L(matches): - pmovmskb %xmm2, %rdx - test %rax, %rax - jz L(return_null) - bsf %rax, %rax - test %rdx, %rdx - je L(match) - bsf %rdx, %rcx - cmp %rcx, %rax - ja L(return_null) -L(match): - sub $16, %rdi - add %rdi, %rax - ret - - .p2align 4 -L(return_null): - xor %rax, %rax - ret - -END (__wcschr) +#define WCSCHR __wcschr +#include "multiarch/wcschr-sse2.S" libc_hidden_def(__wcschr) weak_alias (__wcschr, wcschr) libc_hidden_weak (wcschr) |