diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S | 63 |
1 files changed, 1 insertions, 62 deletions
diff --git a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S index 785fee1..abc12d9 100644 --- a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S +++ b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S @@ -1,4 +1,4 @@ -/* memset/bzero with unaligned store and rep stosb +/* memset with unaligned store and rep stosb Copyright (C) 2016-2022 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -26,10 +26,6 @@ #include <sysdep.h> -#ifndef BZERO_SYMBOL -# define BZERO_SYMBOL(p,s) MEMSET_SYMBOL (p, s) -#endif - #ifndef MEMSET_CHK_SYMBOL # define MEMSET_CHK_SYMBOL(p,s) MEMSET_SYMBOL(p, s) #endif @@ -134,31 +130,6 @@ ENTRY (WMEMSET_SYMBOL (__wmemset, unaligned)) END (WMEMSET_SYMBOL (__wmemset, unaligned)) #endif -ENTRY (BZERO_SYMBOL(__bzero, unaligned)) -#if VEC_SIZE > 16 - BZERO_ZERO_VEC0 () -#endif - mov %RDI_LP, %RAX_LP - mov %RSI_LP, %RDX_LP -#ifndef USE_LESS_VEC_MASK_STORE - xorl %esi, %esi -#endif - cmp $VEC_SIZE, %RDX_LP - jb L(less_vec_no_vdup) -#ifdef USE_LESS_VEC_MASK_STORE - xorl %esi, %esi -#endif -#if VEC_SIZE <= 16 - BZERO_ZERO_VEC0 () -#endif - cmp $(VEC_SIZE * 2), %RDX_LP - ja L(more_2x_vec) - /* From VEC and to 2 * VEC. No branch when size == VEC_SIZE. */ - VMOVU %VEC(0), (%rdi) - VMOVU %VEC(0), (VEC_SIZE * -1)(%rdi, %rdx) - VZEROUPPER_RETURN -END (BZERO_SYMBOL(__bzero, unaligned)) - #if defined SHARED && IS_IN (libc) ENTRY_CHK (MEMSET_CHK_SYMBOL (__memset_chk, unaligned)) cmp %RDX_LP, %RCX_LP @@ -216,31 +187,6 @@ END (__memset_erms) END (MEMSET_SYMBOL (__memset, erms)) # endif -ENTRY_P2ALIGN (BZERO_SYMBOL(__bzero, unaligned_erms), 6) -# if VEC_SIZE > 16 - BZERO_ZERO_VEC0 () -# endif - mov %RDI_LP, %RAX_LP - mov %RSI_LP, %RDX_LP -# ifndef USE_LESS_VEC_MASK_STORE - xorl %esi, %esi -# endif - cmp $VEC_SIZE, %RDX_LP - jb L(less_vec_no_vdup) -# ifdef USE_LESS_VEC_MASK_STORE - xorl %esi, %esi -# endif -# if VEC_SIZE <= 16 - BZERO_ZERO_VEC0 () -# endif - cmp $(VEC_SIZE * 2), %RDX_LP - ja L(stosb_more_2x_vec) - /* From VEC and to 2 * VEC. No branch when size == VEC_SIZE. */ - VMOVU %VEC(0), (%rdi) - VMOVU %VEC(0), (VEC_SIZE * -1)(%rdi, %rdx) - VZEROUPPER_RETURN -END (BZERO_SYMBOL(__bzero, unaligned_erms)) - # if defined SHARED && IS_IN (libc) ENTRY_CHK (MEMSET_CHK_SYMBOL (__memset_chk, unaligned_erms)) cmp %RDX_LP, %RCX_LP @@ -282,7 +228,6 @@ L(last_2x_vec): #ifdef USE_LESS_VEC_MASK_STORE .p2align 4,, 10 L(less_vec): -L(less_vec_no_vdup): L(less_vec_from_wmemset): /* Less than 1 VEC. */ # if VEC_SIZE != 16 && VEC_SIZE != 32 && VEC_SIZE != 64 @@ -430,9 +375,6 @@ L(less_vec): xmm). This is only does anything for AVX2. */ MEMSET_VDUP_TO_VEC0_LOW () L(less_vec_from_wmemset): -#if VEC_SIZE > 16 -L(less_vec_no_vdup): -#endif #endif L(cross_page): #if VEC_SIZE > 32 @@ -446,9 +388,6 @@ L(cross_page): #ifndef USE_XMM_LESS_VEC MOVQ %XMM0, %SET_REG64 #endif -#if VEC_SIZE <= 16 -L(less_vec_no_vdup): -#endif cmpl $8, %edx jge L(between_8_15) cmpl $4, %edx |