diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-02-10 11:20:54 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-02-23 14:06:49 -0300 |
| commit | 8bad328203ee79fbc2e895e2a3f17f6a221d0814 (patch) | |
| tree | e0ba7c548bf66cbf98b6cba25a6cd34c3ede3572 /sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S | |
| parent | 86a82cd57ce102d09bb6753af01787008d134618 (diff) | |
| download | glibc-8bad328203ee79fbc2e895e2a3f17f6a221d0814.tar.gz glibc-8bad328203ee79fbc2e895e2a3f17f6a221d0814.tar.xz glibc-8bad328203ee79fbc2e895e2a3f17f6a221d0814.zip | |
i386: Remove bcopy optimizations
The symbols is not present in current POSIX specification and compiler already generates memmove call.
Diffstat (limited to 'sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S')
| -rw-r--r-- | sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S | 64 |
1 files changed, 19 insertions, 45 deletions
diff --git a/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S b/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S index 38fc56db71..8e3c67d8e1 100644 --- a/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S +++ b/sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S @@ -30,15 +30,9 @@ # define MEMCPY_CHK __memcpy_chk_ssse3_rep #endif -#ifdef USE_AS_BCOPY -# define SRC PARMS -# define DEST SRC+4 -# define LEN DEST+4 -#else -# define DEST PARMS -# define SRC DEST+4 -# define LEN SRC+4 -#endif +#define DEST PARMS +#define SRC DEST+4 +#define LEN SRC+4 #define CFI_PUSH(REG) \ cfi_adjust_cfa_offset (4); \ @@ -99,7 +93,7 @@ #endif .section .text.ssse3,"ax",@progbits -#if !defined USE_AS_BCOPY && defined SHARED +#ifdef SHARED ENTRY (MEMCPY_CHK) movl 12(%esp), %eax cmpl %eax, 16(%esp) @@ -1097,12 +1091,10 @@ L(fwd_write_4bytes): movl -4(%eax), %ecx movl %ecx, -4(%edx) L(fwd_write_0bytes): -#ifndef USE_AS_BCOPY -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl %edx, %eax -# else +#else movl DEST(%esp), %eax -# endif #endif RETURN @@ -1112,12 +1104,10 @@ L(fwd_write_5bytes): movl -4(%eax), %eax movl %ecx, -5(%edx) movl %eax, -4(%edx) -#ifndef USE_AS_BCOPY -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl %edx, %eax -# else +#else movl DEST(%esp), %eax -# endif #endif RETURN @@ -1157,12 +1147,10 @@ L(fwd_write_9bytes): L(fwd_write_1bytes): movzbl -1(%eax), %ecx movb %cl, -1(%edx) -#ifndef USE_AS_BCOPY -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl %edx, %eax -# else +#else movl DEST(%esp), %eax -# endif #endif RETURN @@ -1203,12 +1191,10 @@ L(fwd_write_6bytes): L(fwd_write_2bytes): movzwl -2(%eax), %ecx movw %cx, -2(%edx) -#ifndef USE_AS_BCOPY -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl %edx, %eax -# else +#else movl DEST(%esp), %eax -# endif #endif RETURN @@ -1251,12 +1237,10 @@ L(fwd_write_3bytes): movzbl -1(%eax), %eax movw %cx, -3(%edx) movb %al, -1(%edx) -#ifndef USE_AS_BCOPY -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl %edx, %eax -# else +#else movl DEST(%esp), %eax -# endif #endif RETURN_END @@ -1357,12 +1341,10 @@ L(copy_page_by_rep_left_1): L(copy_page_by_rep_exit): POP (%esi) POP (%edi) -#ifndef USE_AS_BCOPY movl DEST(%esp), %eax -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax -# endif #endif RETURN @@ -1401,12 +1383,10 @@ L(bk_write_4bytes): movl (%eax), %ecx movl %ecx, (%edx) L(bk_write_0bytes): -#ifndef USE_AS_BCOPY movl DEST(%esp), %eax -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax -# endif #endif RETURN @@ -1447,12 +1427,10 @@ L(bk_write_5bytes): L(bk_write_1bytes): movzbl (%eax), %ecx movb %cl, (%edx) -#ifndef USE_AS_BCOPY movl DEST(%esp), %eax -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax -# endif #endif RETURN @@ -1493,12 +1471,10 @@ L(bk_write_6bytes): L(bk_write_2bytes): movzwl (%eax), %ecx movw %cx, (%edx) -#ifndef USE_AS_BCOPY movl DEST(%esp), %eax -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax -# endif #endif RETURN @@ -1541,12 +1517,10 @@ L(bk_write_3bytes): movw %cx, 1(%edx) movzbl (%eax), %eax movb %al, (%edx) -#ifndef USE_AS_BCOPY movl DEST(%esp), %eax -# ifdef USE_AS_MEMPCPY +#ifdef USE_AS_MEMPCPY movl LEN(%esp), %ecx add %ecx, %eax -# endif #endif RETURN_END |