diff options
Diffstat (limited to 'sysdeps/x86_64/strrchr.S')
| -rw-r--r-- | sysdeps/x86_64/strrchr.S | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/sysdeps/x86_64/strrchr.S b/sysdeps/x86_64/strrchr.S deleted file mode 100644 index e6a33bc599..0000000000 --- a/sysdeps/x86_64/strrchr.S +++ /dev/null @@ -1,228 +0,0 @@ -/* strrchr (str, ch) -- Return pointer to last occurrence of CH in STR. - Copyright (C) 2013-2017 Free Software Foundation, Inc. - 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> - - .text -ENTRY (strrchr) - movd %esi, %xmm1 - movq %rdi, %rax - andl $4095, %eax - punpcklbw %xmm1, %xmm1 - cmpq $4032, %rax - punpcklwd %xmm1, %xmm1 - pshufd $0, %xmm1, %xmm1 - ja L(cross_page) - movdqu (%rdi), %xmm0 - pxor %xmm2, %xmm2 - movdqa %xmm0, %xmm3 - pcmpeqb %xmm1, %xmm0 - pcmpeqb %xmm2, %xmm3 - pmovmskb %xmm0, %ecx - pmovmskb %xmm3, %edx - testq %rdx, %rdx - je L(next_48_bytes) - leaq -1(%rdx), %rax - xorq %rdx, %rax - andq %rcx, %rax - je L(exit) - bsrq %rax, %rax - addq %rdi, %rax - ret - - .p2align 4 -L(next_48_bytes): - movdqu 16(%rdi), %xmm4 - movdqa %xmm4, %xmm5 - movdqu 32(%rdi), %xmm3 - pcmpeqb %xmm1, %xmm4 - pcmpeqb %xmm2, %xmm5 - movdqu 48(%rdi), %xmm0 - pmovmskb %xmm5, %edx - movdqa %xmm3, %xmm5 - pcmpeqb %xmm1, %xmm3 - pcmpeqb %xmm2, %xmm5 - pcmpeqb %xmm0, %xmm2 - salq $16, %rdx - pmovmskb %xmm3, %r8d - pmovmskb %xmm5, %eax - pmovmskb %xmm2, %esi - salq $32, %r8 - salq $32, %rax - pcmpeqb %xmm1, %xmm0 - orq %rdx, %rax - movq %rsi, %rdx - pmovmskb %xmm4, %esi - salq $48, %rdx - salq $16, %rsi - orq %r8, %rsi - orq %rcx, %rsi - pmovmskb %xmm0, %ecx - salq $48, %rcx - orq %rcx, %rsi - orq %rdx, %rax - je L(loop_header2) - leaq -1(%rax), %rcx - xorq %rax, %rcx - andq %rcx, %rsi - je L(exit) - bsrq %rsi, %rsi - leaq (%rdi,%rsi), %rax - ret - - .p2align 4 -L(loop_header2): - testq %rsi, %rsi - movq %rdi, %rcx - je L(no_c_found) -L(loop_header): - addq $64, %rdi - pxor %xmm7, %xmm7 - andq $-64, %rdi - jmp L(loop_entry) - - .p2align 4 -L(loop64): - testq %rdx, %rdx - cmovne %rdx, %rsi - cmovne %rdi, %rcx - addq $64, %rdi -L(loop_entry): - movdqa 32(%rdi), %xmm3 - pxor %xmm6, %xmm6 - movdqa 48(%rdi), %xmm2 - movdqa %xmm3, %xmm0 - movdqa 16(%rdi), %xmm4 - pminub %xmm2, %xmm0 - movdqa (%rdi), %xmm5 - pminub %xmm4, %xmm0 - pminub %xmm5, %xmm0 - pcmpeqb %xmm7, %xmm0 - pmovmskb %xmm0, %eax - movdqa %xmm5, %xmm0 - pcmpeqb %xmm1, %xmm0 - pmovmskb %xmm0, %r9d - movdqa %xmm4, %xmm0 - pcmpeqb %xmm1, %xmm0 - pmovmskb %xmm0, %edx - movdqa %xmm3, %xmm0 - pcmpeqb %xmm1, %xmm0 - salq $16, %rdx - pmovmskb %xmm0, %r10d - movdqa %xmm2, %xmm0 - pcmpeqb %xmm1, %xmm0 - salq $32, %r10 - orq %r10, %rdx - pmovmskb %xmm0, %r8d - orq %r9, %rdx - salq $48, %r8 - orq %r8, %rdx - testl %eax, %eax - je L(loop64) - pcmpeqb %xmm6, %xmm4 - pcmpeqb %xmm6, %xmm3 - pcmpeqb %xmm6, %xmm5 - pmovmskb %xmm4, %eax - pmovmskb %xmm3, %r10d - pcmpeqb %xmm6, %xmm2 - pmovmskb %xmm5, %r9d - salq $32, %r10 - salq $16, %rax - pmovmskb %xmm2, %r8d - orq %r10, %rax - orq %r9, %rax - salq $48, %r8 - orq %r8, %rax - leaq -1(%rax), %r8 - xorq %rax, %r8 - andq %r8, %rdx - cmovne %rdi, %rcx - cmovne %rdx, %rsi - bsrq %rsi, %rsi - leaq (%rcx,%rsi), %rax - ret - - .p2align 4 -L(no_c_found): - movl $1, %esi - xorl %ecx, %ecx - jmp L(loop_header) - - .p2align 4 -L(exit): - xorl %eax, %eax - ret - - .p2align 4 -L(cross_page): - movq %rdi, %rax - pxor %xmm0, %xmm0 - andq $-64, %rax - movdqu (%rax), %xmm5 - movdqa %xmm5, %xmm6 - movdqu 16(%rax), %xmm4 - pcmpeqb %xmm1, %xmm5 - pcmpeqb %xmm0, %xmm6 - movdqu 32(%rax), %xmm3 - pmovmskb %xmm6, %esi - movdqa %xmm4, %xmm6 - movdqu 48(%rax), %xmm2 - pcmpeqb %xmm1, %xmm4 - pcmpeqb %xmm0, %xmm6 - pmovmskb %xmm6, %edx - movdqa %xmm3, %xmm6 - pcmpeqb %xmm1, %xmm3 - pcmpeqb %xmm0, %xmm6 - pcmpeqb %xmm2, %xmm0 - salq $16, %rdx - pmovmskb %xmm3, %r9d - pmovmskb %xmm6, %r8d - pmovmskb %xmm0, %ecx - salq $32, %r9 - salq $32, %r8 - pcmpeqb %xmm1, %xmm2 - orq %r8, %rdx - salq $48, %rcx - pmovmskb %xmm5, %r8d - orq %rsi, %rdx - pmovmskb %xmm4, %esi - orq %rcx, %rdx - pmovmskb %xmm2, %ecx - salq $16, %rsi - salq $48, %rcx - orq %r9, %rsi - orq %r8, %rsi - orq %rcx, %rsi - movl %edi, %ecx - subl %eax, %ecx - shrq %cl, %rdx - shrq %cl, %rsi - testq %rdx, %rdx - je L(loop_header2) - leaq -1(%rdx), %rax - xorq %rdx, %rax - andq %rax, %rsi - je L(exit) - bsrq %rsi, %rax - addq %rdi, %rax - ret -END (strrchr) - -weak_alias (strrchr, rindex) -libc_hidden_builtin_def (strrchr) |