License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#if IS_IN (libc)
-# define __wcscmp __wcscmp_sse2
-#endif
+#define USE_AS_WCSCMP
+#define STRCMP_ISA _sse2
+#include "strcmp-naming.h"
-#include "../wcscmp.S"
+#include <sysdep.h>
+
+/* Note: wcscmp uses signed comparison, not unsighed as in strcmp function. */
+
+ .text
+ENTRY (STRCMP)
+/*
+ * This implementation uses SSE to compare up to 16 bytes at a time.
+*/
+ mov %esi, %eax
+ mov %edi, %edx
+ pxor %xmm0, %xmm0 /* clear %xmm0 for null char checks */
+ mov %al, %ch
+ mov %dl, %cl
+ and $63, %eax /* rsi alignment in cache line */
+ and $63, %edx /* rdi alignment in cache line */
+ and $15, %cl
+ jz L(continue_00)
+ cmp $16, %edx
+ jb L(continue_0)
+ cmp $32, %edx
+ jb L(continue_16)
+ cmp $48, %edx
+ jb L(continue_32)
+
+L(continue_48):
+ and $15, %ch
+ jz L(continue_48_00)
+ cmp $16, %eax
+ jb L(continue_0_48)
+ cmp $32, %eax
+ jb L(continue_16_48)
+ cmp $48, %eax
+ jb L(continue_32_48)
+
+ .p2align 4
+L(continue_48_48):
+ mov (%rsi), %ecx
+ cmp %ecx, (%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 4(%rsi), %ecx
+ cmp %ecx, 4(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 8(%rsi), %ecx
+ cmp %ecx, 8(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 12(%rsi), %ecx
+ cmp %ecx, 12(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ movdqu 16(%rdi), %xmm1
+ movdqu 16(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqu 32(%rdi), %xmm1
+ movdqu 32(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ movdqu 48(%rdi), %xmm1
+ movdqu 48(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_48)
+
+ add $64, %rsi
+ add $64, %rdi
+ jmp L(continue_48_48)
+
+L(continue_0):
+ and $15, %ch
+ jz L(continue_0_00)
+ cmp $16, %eax
+ jb L(continue_0_0)
+ cmp $32, %eax
+ jb L(continue_0_16)
+ cmp $48, %eax
+ jb L(continue_0_32)
+
+ .p2align 4
+L(continue_0_48):
+ mov (%rsi), %ecx
+ cmp %ecx, (%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 4(%rsi), %ecx
+ cmp %ecx, 4(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 8(%rsi), %ecx
+ cmp %ecx, 8(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 12(%rsi), %ecx
+ cmp %ecx, 12(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ movdqu 16(%rdi), %xmm1
+ movdqu 16(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqu 32(%rdi), %xmm1
+ movdqu 32(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ mov 48(%rsi), %ecx
+ cmp %ecx, 48(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 52(%rsi), %ecx
+ cmp %ecx, 52(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 56(%rsi), %ecx
+ cmp %ecx, 56(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 60(%rsi), %ecx
+ cmp %ecx, 60(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ add $64, %rsi
+ add $64, %rdi
+ jmp L(continue_0_48)
+
+ .p2align 4
+L(continue_00):
+ and $15, %ch
+ jz L(continue_00_00)
+ cmp $16, %eax
+ jb L(continue_00_0)
+ cmp $32, %eax
+ jb L(continue_00_16)
+ cmp $48, %eax
+ jb L(continue_00_32)
+
+ .p2align 4
+L(continue_00_48):
+ pcmpeqd (%rdi), %xmm0
+ mov (%rdi), %eax
+ pmovmskb %xmm0, %ecx
+ test %ecx, %ecx
+ jnz L(less4_double_words1)
+
+ cmp (%rsi), %eax
+ jne L(nequal)
+
+ mov 4(%rdi), %eax
+ cmp 4(%rsi), %eax
+ jne L(nequal)
+
+ mov 8(%rdi), %eax
+ cmp 8(%rsi), %eax
+ jne L(nequal)
+
+ mov 12(%rdi), %eax
+ cmp 12(%rsi), %eax
+ jne L(nequal)
+
+ movdqu 16(%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd 16(%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqu 32(%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd 32(%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ movdqu 48(%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd 48(%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_48)
+
+ add $64, %rsi
+ add $64, %rdi
+ jmp L(continue_00_48)
+
+ .p2align 4
+L(continue_32):
+ and $15, %ch
+ jz L(continue_32_00)
+ cmp $16, %eax
+ jb L(continue_0_32)
+ cmp $32, %eax
+ jb L(continue_16_32)
+ cmp $48, %eax
+ jb L(continue_32_32)
+
+ .p2align 4
+L(continue_32_48):
+ mov (%rsi), %ecx
+ cmp %ecx, (%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 4(%rsi), %ecx
+ cmp %ecx, 4(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 8(%rsi), %ecx
+ cmp %ecx, 8(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 12(%rsi), %ecx
+ cmp %ecx, 12(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 16(%rsi), %ecx
+ cmp %ecx, 16(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 20(%rsi), %ecx
+ cmp %ecx, 20(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 24(%rsi), %ecx
+ cmp %ecx, 24(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 28(%rsi), %ecx
+ cmp %ecx, 28(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ movdqu 32(%rdi), %xmm1
+ movdqu 32(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ movdqu 48(%rdi), %xmm1
+ movdqu 48(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_48)
+
+ add $64, %rsi
+ add $64, %rdi
+ jmp L(continue_32_48)
+
+ .p2align 4
+L(continue_16):
+ and $15, %ch
+ jz L(continue_16_00)
+ cmp $16, %eax
+ jb L(continue_0_16)
+ cmp $32, %eax
+ jb L(continue_16_16)
+ cmp $48, %eax
+ jb L(continue_16_32)
+
+ .p2align 4
+L(continue_16_48):
+ mov (%rsi), %ecx
+ cmp %ecx, (%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 4(%rsi), %ecx
+ cmp %ecx, 4(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 8(%rsi), %ecx
+ cmp %ecx, 8(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 12(%rsi), %ecx
+ cmp %ecx, 12(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ movdqu 16(%rdi), %xmm1
+ movdqu 16(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ mov 32(%rsi), %ecx
+ cmp %ecx, 32(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 36(%rsi), %ecx
+ cmp %ecx, 36(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 40(%rsi), %ecx
+ cmp %ecx, 40(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 44(%rsi), %ecx
+ cmp %ecx, 44(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ movdqu 48(%rdi), %xmm1
+ movdqu 48(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_48)
+
+ add $64, %rsi
+ add $64, %rdi
+ jmp L(continue_16_48)
+
+ .p2align 4
+L(continue_00_00):
+ movdqa (%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqa 16(%rdi), %xmm3
+ pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
+ pcmpeqd 16(%rsi), %xmm3 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm3 /* packed sub of comparison results*/
+ pmovmskb %xmm3, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqa 32(%rdi), %xmm5
+ pcmpeqd %xmm5, %xmm0 /* Any null double_word? */
+ pcmpeqd 32(%rsi), %xmm5 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm5 /* packed sub of comparison results*/
+ pmovmskb %xmm5, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ movdqa 48(%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd 48(%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_48)
+
+ add $64, %rsi
+ add $64, %rdi
+ jmp L(continue_00_00)
+
+ .p2align 4
+L(continue_00_32):
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd (%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ add $16, %rsi
+ add $16, %rdi
+ jmp L(continue_00_48)
+
+ .p2align 4
+L(continue_00_16):
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd (%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqu 16(%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd 16(%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ add $32, %rsi
+ add $32, %rdi
+ jmp L(continue_00_48)
+
+ .p2align 4
+L(continue_00_0):
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd (%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqu 16(%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd 16(%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqu 32(%rsi), %xmm2
+ pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
+ pcmpeqd 32(%rdi), %xmm2 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm2 /* packed sub of comparison results*/
+ pmovmskb %xmm2, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ add $48, %rsi
+ add $48, %rdi
+ jmp L(continue_00_48)
+
+ .p2align 4
+L(continue_48_00):
+ pcmpeqd (%rsi), %xmm0
+ mov (%rdi), %eax
+ pmovmskb %xmm0, %ecx
+ test %ecx, %ecx
+ jnz L(less4_double_words1)
+
+ cmp (%rsi), %eax
+ jne L(nequal)
+
+ mov 4(%rdi), %eax
+ cmp 4(%rsi), %eax
+ jne L(nequal)
+
+ mov 8(%rdi), %eax
+ cmp 8(%rsi), %eax
+ jne L(nequal)
+
+ mov 12(%rdi), %eax
+ cmp 12(%rsi), %eax
+ jne L(nequal)
+
+ movdqu 16(%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd 16(%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqu 32(%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd 32(%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ movdqu 48(%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd 48(%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_48)
+
+ add $64, %rsi
+ add $64, %rdi
+ jmp L(continue_48_00)
+
+ .p2align 4
+L(continue_32_00):
+ movdqu (%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ add $16, %rsi
+ add $16, %rdi
+ jmp L(continue_48_00)
+
+ .p2align 4
+L(continue_16_00):
+ movdqu (%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqu 16(%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd 16(%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ add $32, %rsi
+ add $32, %rdi
+ jmp L(continue_48_00)
+
+ .p2align 4
+L(continue_0_00):
+ movdqu (%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqu 16(%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd 16(%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqu 32(%rdi), %xmm1
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd 32(%rsi), %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ add $48, %rsi
+ add $48, %rdi
+ jmp L(continue_48_00)
+
+ .p2align 4
+L(continue_32_32):
+ movdqu (%rdi), %xmm1
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ add $16, %rsi
+ add $16, %rdi
+ jmp L(continue_48_48)
+
+ .p2align 4
+L(continue_16_16):
+ movdqu (%rdi), %xmm1
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqu 16(%rdi), %xmm3
+ movdqu 16(%rsi), %xmm4
+ pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm4, %xmm3 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm3 /* packed sub of comparison results*/
+ pmovmskb %xmm3, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ add $32, %rsi
+ add $32, %rdi
+ jmp L(continue_48_48)
+
+ .p2align 4
+L(continue_0_0):
+ movdqu (%rdi), %xmm1
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqu 16(%rdi), %xmm3
+ movdqu 16(%rsi), %xmm4
+ pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm4, %xmm3 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm3 /* packed sub of comparison results*/
+ pmovmskb %xmm3, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ movdqu 32(%rdi), %xmm1
+ movdqu 32(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_32)
+
+ add $48, %rsi
+ add $48, %rdi
+ jmp L(continue_48_48)
+
+ .p2align 4
+L(continue_0_16):
+ movdqu (%rdi), %xmm1
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ movdqu 16(%rdi), %xmm1
+ movdqu 16(%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words_16)
+
+ add $32, %rsi
+ add $32, %rdi
+ jmp L(continue_32_48)
+
+ .p2align 4
+L(continue_0_32):
+ movdqu (%rdi), %xmm1
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ add $16, %rsi
+ add $16, %rdi
+ jmp L(continue_16_48)
+
+ .p2align 4
+L(continue_16_32):
+ movdqu (%rdi), %xmm1
+ movdqu (%rsi), %xmm2
+ pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
+ pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
+ psubb %xmm0, %xmm1 /* packed sub of comparison results*/
+ pmovmskb %xmm1, %edx
+ sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
+ jnz L(less4_double_words)
+
+ add $16, %rsi
+ add $16, %rdi
+ jmp L(continue_32_48)
+
+ .p2align 4
+L(less4_double_words1):
+ cmp (%rsi), %eax
+ jne L(nequal)
+ test %eax, %eax
+ jz L(equal)
+
+ mov 4(%rsi), %ecx
+ cmp %ecx, 4(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 8(%rsi), %ecx
+ cmp %ecx, 8(%rdi)
+ jne L(nequal)
+ test %ecx, %ecx
+ jz L(equal)
+
+ mov 12(%rsi), %ecx
+ cmp %ecx, 12(%rdi)
+ jne L(nequal)
+ xor %eax, %eax
+ ret
+
+ .p2align 4
+L(less4_double_words):
+ xor %eax, %eax
+ test %dl, %dl
+ jz L(next_two_double_words)
+ and $15, %dl
+ jz L(second_double_word)
+ mov (%rdi), %eax
+ cmp (%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(second_double_word):
+ mov 4(%rdi), %eax
+ cmp 4(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(next_two_double_words):
+ and $15, %dh
+ jz L(fourth_double_word)
+ mov 8(%rdi), %eax
+ cmp 8(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(fourth_double_word):
+ mov 12(%rdi), %eax
+ cmp 12(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(less4_double_words_16):
+ xor %eax, %eax
+ test %dl, %dl
+ jz L(next_two_double_words_16)
+ and $15, %dl
+ jz L(second_double_word_16)
+ mov 16(%rdi), %eax
+ cmp 16(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(second_double_word_16):
+ mov 20(%rdi), %eax
+ cmp 20(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(next_two_double_words_16):
+ and $15, %dh
+ jz L(fourth_double_word_16)
+ mov 24(%rdi), %eax
+ cmp 24(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(fourth_double_word_16):
+ mov 28(%rdi), %eax
+ cmp 28(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(less4_double_words_32):
+ xor %eax, %eax
+ test %dl, %dl
+ jz L(next_two_double_words_32)
+ and $15, %dl
+ jz L(second_double_word_32)
+ mov 32(%rdi), %eax
+ cmp 32(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(second_double_word_32):
+ mov 36(%rdi), %eax
+ cmp 36(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(next_two_double_words_32):
+ and $15, %dh
+ jz L(fourth_double_word_32)
+ mov 40(%rdi), %eax
+ cmp 40(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(fourth_double_word_32):
+ mov 44(%rdi), %eax
+ cmp 44(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(less4_double_words_48):
+ xor %eax, %eax
+ test %dl, %dl
+ jz L(next_two_double_words_48)
+ and $15, %dl
+ jz L(second_double_word_48)
+ mov 48(%rdi), %eax
+ cmp 48(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(second_double_word_48):
+ mov 52(%rdi), %eax
+ cmp 52(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(next_two_double_words_48):
+ and $15, %dh
+ jz L(fourth_double_word_48)
+ mov 56(%rdi), %eax
+ cmp 56(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(fourth_double_word_48):
+ mov 60(%rdi), %eax
+ cmp 60(%rsi), %eax
+ jne L(nequal)
+ ret
+
+ .p2align 4
+L(nequal):
+ mov $1, %eax
+ jg L(nequal_bigger)
+ neg %eax
+
+L(nequal_bigger):
+ ret
+
+ .p2align 4
+L(equal):
+ xor %rax, %rax
+ ret
+
+END (STRCMP)
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
-#include <sysdep.h>
+/* Symbol = __wcscmp. */
-/* Note: wcscmp uses signed comparison, not unsighed as in strcmp function. */
-
- .text
-ENTRY (__wcscmp)
-/*
- * This implementation uses SSE to compare up to 16 bytes at a time.
-*/
- mov %esi, %eax
- mov %edi, %edx
- pxor %xmm0, %xmm0 /* clear %xmm0 for null char checks */
- mov %al, %ch
- mov %dl, %cl
- and $63, %eax /* rsi alignment in cache line */
- and $63, %edx /* rdi alignment in cache line */
- and $15, %cl
- jz L(continue_00)
- cmp $16, %edx
- jb L(continue_0)
- cmp $32, %edx
- jb L(continue_16)
- cmp $48, %edx
- jb L(continue_32)
-
-L(continue_48):
- and $15, %ch
- jz L(continue_48_00)
- cmp $16, %eax
- jb L(continue_0_48)
- cmp $32, %eax
- jb L(continue_16_48)
- cmp $48, %eax
- jb L(continue_32_48)
-
- .p2align 4
-L(continue_48_48):
- mov (%rsi), %ecx
- cmp %ecx, (%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 4(%rsi), %ecx
- cmp %ecx, 4(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 8(%rsi), %ecx
- cmp %ecx, 8(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 12(%rsi), %ecx
- cmp %ecx, 12(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- movdqu 16(%rdi), %xmm1
- movdqu 16(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqu 32(%rdi), %xmm1
- movdqu 32(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- movdqu 48(%rdi), %xmm1
- movdqu 48(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_48)
-
- add $64, %rsi
- add $64, %rdi
- jmp L(continue_48_48)
-
-L(continue_0):
- and $15, %ch
- jz L(continue_0_00)
- cmp $16, %eax
- jb L(continue_0_0)
- cmp $32, %eax
- jb L(continue_0_16)
- cmp $48, %eax
- jb L(continue_0_32)
-
- .p2align 4
-L(continue_0_48):
- mov (%rsi), %ecx
- cmp %ecx, (%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 4(%rsi), %ecx
- cmp %ecx, 4(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 8(%rsi), %ecx
- cmp %ecx, 8(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 12(%rsi), %ecx
- cmp %ecx, 12(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- movdqu 16(%rdi), %xmm1
- movdqu 16(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqu 32(%rdi), %xmm1
- movdqu 32(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- mov 48(%rsi), %ecx
- cmp %ecx, 48(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 52(%rsi), %ecx
- cmp %ecx, 52(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 56(%rsi), %ecx
- cmp %ecx, 56(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 60(%rsi), %ecx
- cmp %ecx, 60(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- add $64, %rsi
- add $64, %rdi
- jmp L(continue_0_48)
-
- .p2align 4
-L(continue_00):
- and $15, %ch
- jz L(continue_00_00)
- cmp $16, %eax
- jb L(continue_00_0)
- cmp $32, %eax
- jb L(continue_00_16)
- cmp $48, %eax
- jb L(continue_00_32)
-
- .p2align 4
-L(continue_00_48):
- pcmpeqd (%rdi), %xmm0
- mov (%rdi), %eax
- pmovmskb %xmm0, %ecx
- test %ecx, %ecx
- jnz L(less4_double_words1)
-
- cmp (%rsi), %eax
- jne L(nequal)
-
- mov 4(%rdi), %eax
- cmp 4(%rsi), %eax
- jne L(nequal)
-
- mov 8(%rdi), %eax
- cmp 8(%rsi), %eax
- jne L(nequal)
-
- mov 12(%rdi), %eax
- cmp 12(%rsi), %eax
- jne L(nequal)
-
- movdqu 16(%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd 16(%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqu 32(%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd 32(%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- movdqu 48(%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd 48(%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_48)
-
- add $64, %rsi
- add $64, %rdi
- jmp L(continue_00_48)
-
- .p2align 4
-L(continue_32):
- and $15, %ch
- jz L(continue_32_00)
- cmp $16, %eax
- jb L(continue_0_32)
- cmp $32, %eax
- jb L(continue_16_32)
- cmp $48, %eax
- jb L(continue_32_32)
-
- .p2align 4
-L(continue_32_48):
- mov (%rsi), %ecx
- cmp %ecx, (%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 4(%rsi), %ecx
- cmp %ecx, 4(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 8(%rsi), %ecx
- cmp %ecx, 8(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 12(%rsi), %ecx
- cmp %ecx, 12(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 16(%rsi), %ecx
- cmp %ecx, 16(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 20(%rsi), %ecx
- cmp %ecx, 20(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 24(%rsi), %ecx
- cmp %ecx, 24(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 28(%rsi), %ecx
- cmp %ecx, 28(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- movdqu 32(%rdi), %xmm1
- movdqu 32(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- movdqu 48(%rdi), %xmm1
- movdqu 48(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_48)
-
- add $64, %rsi
- add $64, %rdi
- jmp L(continue_32_48)
-
- .p2align 4
-L(continue_16):
- and $15, %ch
- jz L(continue_16_00)
- cmp $16, %eax
- jb L(continue_0_16)
- cmp $32, %eax
- jb L(continue_16_16)
- cmp $48, %eax
- jb L(continue_16_32)
-
- .p2align 4
-L(continue_16_48):
- mov (%rsi), %ecx
- cmp %ecx, (%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 4(%rsi), %ecx
- cmp %ecx, 4(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 8(%rsi), %ecx
- cmp %ecx, 8(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 12(%rsi), %ecx
- cmp %ecx, 12(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- movdqu 16(%rdi), %xmm1
- movdqu 16(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- mov 32(%rsi), %ecx
- cmp %ecx, 32(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 36(%rsi), %ecx
- cmp %ecx, 36(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 40(%rsi), %ecx
- cmp %ecx, 40(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 44(%rsi), %ecx
- cmp %ecx, 44(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- movdqu 48(%rdi), %xmm1
- movdqu 48(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_48)
-
- add $64, %rsi
- add $64, %rdi
- jmp L(continue_16_48)
-
- .p2align 4
-L(continue_00_00):
- movdqa (%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqa 16(%rdi), %xmm3
- pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
- pcmpeqd 16(%rsi), %xmm3 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm3 /* packed sub of comparison results*/
- pmovmskb %xmm3, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqa 32(%rdi), %xmm5
- pcmpeqd %xmm5, %xmm0 /* Any null double_word? */
- pcmpeqd 32(%rsi), %xmm5 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm5 /* packed sub of comparison results*/
- pmovmskb %xmm5, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- movdqa 48(%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd 48(%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_48)
-
- add $64, %rsi
- add $64, %rdi
- jmp L(continue_00_00)
-
- .p2align 4
-L(continue_00_32):
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd (%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- add $16, %rsi
- add $16, %rdi
- jmp L(continue_00_48)
-
- .p2align 4
-L(continue_00_16):
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd (%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqu 16(%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd 16(%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- add $32, %rsi
- add $32, %rdi
- jmp L(continue_00_48)
-
- .p2align 4
-L(continue_00_0):
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd (%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqu 16(%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd 16(%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqu 32(%rsi), %xmm2
- pcmpeqd %xmm2, %xmm0 /* Any null double_word? */
- pcmpeqd 32(%rdi), %xmm2 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm2 /* packed sub of comparison results*/
- pmovmskb %xmm2, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- add $48, %rsi
- add $48, %rdi
- jmp L(continue_00_48)
-
- .p2align 4
-L(continue_48_00):
- pcmpeqd (%rsi), %xmm0
- mov (%rdi), %eax
- pmovmskb %xmm0, %ecx
- test %ecx, %ecx
- jnz L(less4_double_words1)
-
- cmp (%rsi), %eax
- jne L(nequal)
-
- mov 4(%rdi), %eax
- cmp 4(%rsi), %eax
- jne L(nequal)
-
- mov 8(%rdi), %eax
- cmp 8(%rsi), %eax
- jne L(nequal)
-
- mov 12(%rdi), %eax
- cmp 12(%rsi), %eax
- jne L(nequal)
-
- movdqu 16(%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd 16(%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqu 32(%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd 32(%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- movdqu 48(%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd 48(%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_48)
-
- add $64, %rsi
- add $64, %rdi
- jmp L(continue_48_00)
-
- .p2align 4
-L(continue_32_00):
- movdqu (%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- add $16, %rsi
- add $16, %rdi
- jmp L(continue_48_00)
-
- .p2align 4
-L(continue_16_00):
- movdqu (%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqu 16(%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd 16(%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- add $32, %rsi
- add $32, %rdi
- jmp L(continue_48_00)
-
- .p2align 4
-L(continue_0_00):
- movdqu (%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd (%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqu 16(%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd 16(%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqu 32(%rdi), %xmm1
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd 32(%rsi), %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- add $48, %rsi
- add $48, %rdi
- jmp L(continue_48_00)
-
- .p2align 4
-L(continue_32_32):
- movdqu (%rdi), %xmm1
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- add $16, %rsi
- add $16, %rdi
- jmp L(continue_48_48)
-
- .p2align 4
-L(continue_16_16):
- movdqu (%rdi), %xmm1
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqu 16(%rdi), %xmm3
- movdqu 16(%rsi), %xmm4
- pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm4, %xmm3 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm3 /* packed sub of comparison results*/
- pmovmskb %xmm3, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- add $32, %rsi
- add $32, %rdi
- jmp L(continue_48_48)
-
- .p2align 4
-L(continue_0_0):
- movdqu (%rdi), %xmm1
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqu 16(%rdi), %xmm3
- movdqu 16(%rsi), %xmm4
- pcmpeqd %xmm3, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm4, %xmm3 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm3 /* packed sub of comparison results*/
- pmovmskb %xmm3, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- movdqu 32(%rdi), %xmm1
- movdqu 32(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_32)
-
- add $48, %rsi
- add $48, %rdi
- jmp L(continue_48_48)
-
- .p2align 4
-L(continue_0_16):
- movdqu (%rdi), %xmm1
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- movdqu 16(%rdi), %xmm1
- movdqu 16(%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words_16)
-
- add $32, %rsi
- add $32, %rdi
- jmp L(continue_32_48)
-
- .p2align 4
-L(continue_0_32):
- movdqu (%rdi), %xmm1
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- add $16, %rsi
- add $16, %rdi
- jmp L(continue_16_48)
-
- .p2align 4
-L(continue_16_32):
- movdqu (%rdi), %xmm1
- movdqu (%rsi), %xmm2
- pcmpeqd %xmm1, %xmm0 /* Any null double_word? */
- pcmpeqd %xmm2, %xmm1 /* compare first 4 double_words for equality */
- psubb %xmm0, %xmm1 /* packed sub of comparison results*/
- pmovmskb %xmm1, %edx
- sub $0xffff, %edx /* if first 4 double_words are same, edx == 0xffff */
- jnz L(less4_double_words)
-
- add $16, %rsi
- add $16, %rdi
- jmp L(continue_32_48)
-
- .p2align 4
-L(less4_double_words1):
- cmp (%rsi), %eax
- jne L(nequal)
- test %eax, %eax
- jz L(equal)
-
- mov 4(%rsi), %ecx
- cmp %ecx, 4(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 8(%rsi), %ecx
- cmp %ecx, 8(%rdi)
- jne L(nequal)
- test %ecx, %ecx
- jz L(equal)
-
- mov 12(%rsi), %ecx
- cmp %ecx, 12(%rdi)
- jne L(nequal)
- xor %eax, %eax
- ret
-
- .p2align 4
-L(less4_double_words):
- xor %eax, %eax
- test %dl, %dl
- jz L(next_two_double_words)
- and $15, %dl
- jz L(second_double_word)
- mov (%rdi), %eax
- cmp (%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(second_double_word):
- mov 4(%rdi), %eax
- cmp 4(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(next_two_double_words):
- and $15, %dh
- jz L(fourth_double_word)
- mov 8(%rdi), %eax
- cmp 8(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(fourth_double_word):
- mov 12(%rdi), %eax
- cmp 12(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(less4_double_words_16):
- xor %eax, %eax
- test %dl, %dl
- jz L(next_two_double_words_16)
- and $15, %dl
- jz L(second_double_word_16)
- mov 16(%rdi), %eax
- cmp 16(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(second_double_word_16):
- mov 20(%rdi), %eax
- cmp 20(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(next_two_double_words_16):
- and $15, %dh
- jz L(fourth_double_word_16)
- mov 24(%rdi), %eax
- cmp 24(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(fourth_double_word_16):
- mov 28(%rdi), %eax
- cmp 28(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(less4_double_words_32):
- xor %eax, %eax
- test %dl, %dl
- jz L(next_two_double_words_32)
- and $15, %dl
- jz L(second_double_word_32)
- mov 32(%rdi), %eax
- cmp 32(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(second_double_word_32):
- mov 36(%rdi), %eax
- cmp 36(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(next_two_double_words_32):
- and $15, %dh
- jz L(fourth_double_word_32)
- mov 40(%rdi), %eax
- cmp 40(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(fourth_double_word_32):
- mov 44(%rdi), %eax
- cmp 44(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(less4_double_words_48):
- xor %eax, %eax
- test %dl, %dl
- jz L(next_two_double_words_48)
- and $15, %dl
- jz L(second_double_word_48)
- mov 48(%rdi), %eax
- cmp 48(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(second_double_word_48):
- mov 52(%rdi), %eax
- cmp 52(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(next_two_double_words_48):
- and $15, %dh
- jz L(fourth_double_word_48)
- mov 56(%rdi), %eax
- cmp 56(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(fourth_double_word_48):
- mov 60(%rdi), %eax
- cmp 60(%rsi), %eax
- jne L(nequal)
- ret
-
- .p2align 4
-L(nequal):
- mov $1, %eax
- jg L(nequal_bigger)
- neg %eax
-
-L(nequal_bigger):
- ret
-
- .p2align 4
-L(equal):
- xor %rax, %rax
- ret
-
-END (__wcscmp)
-#ifndef __wcscmp
+#include "multiarch/wcscmp-sse2.S"
libc_hidden_def (__wcscmp)
weak_alias (__wcscmp, wcscmp)
-#endif
projects / thirdparty / glibc.git / commitdiff
