/* Multiple versions of strspn Copyright (C) 2009,2010,2012 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include #ifdef HAVE_SSE4_SUPPORT #include #include /* Define multiple versions only for the definition in libc. */ #ifndef NOT_IN_libc # ifdef SHARED .text ENTRY(strspn) .type strspn, @gnu_indirect_function pushl %ebx cfi_adjust_cfa_offset (4) cfi_rel_offset (ebx, 0) LOAD_PIC_REG(bx) cmpl $0, KIND_OFFSET+__cpu_features@GOTOFF(%ebx) jne 1f call __init_cpu_features 1: leal __strspn_ia32@GOTOFF(%ebx), %eax testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features@GOTOFF(%ebx) jz 2f leal __strspn_sse42@GOTOFF(%ebx), %eax 2: popl %ebx cfi_adjust_cfa_offset (-4); cfi_restore (ebx) ret END(strspn) # else .text ENTRY(strspn) .type strspn, @gnu_indirect_function cmpl $0, KIND_OFFSET+__cpu_features jne 1f call __init_cpu_features 1: leal __strspn_ia32, %eax testl $bit_SSE4_2, CPUID_OFFSET+index_SSE4_2+__cpu_features jz 2f leal __strspn_sse42, %eax 2: ret END(strspn) # endif # undef ENTRY # define ENTRY(name) \ .type __strspn_ia32, @function; \ .globl __strspn_ia32; \ .p2align 4; \ __strspn_ia32: cfi_startproc; \ CALL_MCOUNT # undef END # define END(name) \ cfi_endproc; .size __strspn_ia32, .-__strspn_ia32 # undef libc_hidden_builtin_def /* IFUNC doesn't work with the hidden functions in shared library since they will be called without setting up EBX needed for PLT which is used by IFUNC. */ # define libc_hidden_builtin_def(name) \ .globl __GI_strspn; __GI_strspn = __strspn_ia32 #endif #endif /* HAVE_SSE4_SUPPORT */ #include "../../strspn.S"