diff options
Diffstat (limited to 'sysdeps/x86_64/wcscmp.S')
-rw-r--r-- | sysdeps/x86_64/wcscmp.S | 950 |
1 files changed, 0 insertions, 950 deletions
diff --git a/sysdeps/x86_64/wcscmp.S b/sysdeps/x86_64/wcscmp.S deleted file mode 100644 index 3ef3341cd0..0000000000 --- a/sysdeps/x86_64/wcscmp.S +++ /dev/null @@ -1,950 +0,0 @@ -/* Optimized wcscmp for x86-64 with SSE2. - Copyright (C) 2011-2017 Free Software Foundation, Inc. - Contributed by Intel Corporation. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - -/* 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) -libc_hidden_def (__wcscmp) -weak_alias (__wcscmp, wcscmp) |