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Re: [PATCH 2/*] Remove pre-gcc 3.4 string inline optimizations.
- From: OndÅej BÃlka <neleai at seznam dot cz>
- To: libc-alpha at sourceware dot org
- Date: Sun, 24 May 2015 17:27:06 +0200
- Subject: Re: [PATCH 2/*] Remove pre-gcc 3.4 string inline optimizations.
- Authentication-results: sourceware.org; auth=none
- References: <20150524150715 dot GA31589 at domone>
As described before this removes optimization for gcc older than 3.4.
Change is mechanical of checking which defines evaluate to false.
Also ok to commit?
* string/bits/string2.h [!_GNUC_PREREQ (3,4)] Remove.
diff --git a/string/bits/string2.h b/string/bits/string2.h
index 7645176..a595c74 100644
--- a/string/bits/string2.h
+++ b/string/bits/string2.h
@@ -92,111 +92,6 @@ __STRING2_COPY_TYPE (8);
#define __string2_1bptr_p(__x) \
((size_t)(const void *)((__x) + 1) - (size_t)(const void *)(__x) == 1)
-/* Set N bytes of S to C. */
-#if !defined _HAVE_STRING_ARCH_memset
-# if !__GNUC_PREREQ (3, 0)
-# if _STRING_ARCH_unaligned
-# define memset(s, c, n) \
- (__extension__ (__builtin_constant_p (n) && (n) <= 16 \
- ? ((n) == 1 \
- ? __memset_1 (s, c) \
- : __memset_gc (s, c, n)) \
- : (__builtin_constant_p (c) && (c) == '\0' \
- ? ({ void *__s = (s); __bzero (__s, n); __s; }) \
- : memset (s, c, n))))
-
-# define __memset_1(s, c) ({ void *__s = (s); \
- *((__uint8_t *) __s) = (__uint8_t) c; __s; })
-
-# define __memset_gc(s, c, n) \
- ({ void *__s = (s); \
- union { \
- unsigned int __ui; \
- unsigned short int __usi; \
- unsigned char __uc; \
- } *__u = __s; \
- __uint8_t __c = (__uint8_t) (c); \
- \
- /* This `switch' statement will be removed at compile-time. */ \
- switch ((unsigned int) (n)) \
- { \
- case 15: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 11: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 7: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 3: \
- __u->__usi = (unsigned short int) __c * 0x0101; \
- __u = __extension__ ((void *) __u + 2); \
- __u->__uc = (unsigned char) __c; \
- break; \
- \
- case 14: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 10: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 6: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 2: \
- __u->__usi = (unsigned short int) __c * 0x0101; \
- break; \
- \
- case 13: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 9: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 5: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 1: \
- __u->__uc = (unsigned char) __c; \
- break; \
- \
- case 16: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 12: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 8: \
- __u->__ui = __c * 0x01010101; \
- __u = __extension__ ((void *) __u + 4); \
- case 4: \
- __u->__ui = __c * 0x01010101; \
- case 0: \
- break; \
- } \
- \
- __s; })
-# else
-# define memset(s, c, n) \
- (__extension__ (__builtin_constant_p (c) && (c) == '\0' \
- ? ({ void *__s = (s); __bzero (__s, n); __s; }) \
- : memset (s, c, n)))
-# endif
-# endif
-
-/* GCC < 3.0 optimizes memset(s, 0, n) but not bzero(s, n).
- The optimization is broken before EGCS 1.1.
- GCC 3.0+ has __builtin_bzero as well, but at least till GCC 3.4
- if it decides to call the library function, it calls memset
- and not bzero. */
-# if __GNUC_PREREQ (2, 91)
-# define __bzero(s, n) __builtin_memset (s, '\0', n)
-# endif
-
-#endif
-
-
/* Copy N bytes from SRC to DEST, returning pointer to byte following the
last copied. */
#ifdef __USE_GNU
@@ -204,186 +99,11 @@ __STRING2_COPY_TYPE (8);
# ifndef _HAVE_STRING_ARCH_mempcpy
# if __GNUC_PREREQ (3, 4)
# define __mempcpy(dest, src, n) __builtin_mempcpy (dest, src, n)
-# elif __GNUC_PREREQ (3, 0)
-# define __mempcpy(dest, src, n) \
- (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n) \
- && __string2_1bptr_p (src) && n <= 8 \
- ? __builtin_memcpy (dest, src, n) + (n) \
- : __mempcpy (dest, src, n)))
-# else
-# define __mempcpy(dest, src, n) \
- (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n) \
- && __string2_1bptr_p (src) && n <= 8 \
- ? __mempcpy_small (dest, __mempcpy_args (src), n) \
- : __mempcpy (dest, src, n)))
# endif
/* In glibc we use this function frequently but for namespace reasons
we have to use the name `__mempcpy'. */
# define mempcpy(dest, src, n) __mempcpy (dest, src, n)
# endif
-
-# if !__GNUC_PREREQ (3, 0) || defined _FORCE_INLINES
-# if _STRING_ARCH_unaligned
-# ifndef _FORCE_INLINES
-# define __mempcpy_args(src) \
- ((const char *) (src))[0], ((const char *) (src))[2], \
- ((const char *) (src))[4], ((const char *) (src))[6], \
- __extension__ __STRING2_SMALL_GET16 (src, 0), \
- __extension__ __STRING2_SMALL_GET16 (src, 4), \
- __extension__ __STRING2_SMALL_GET32 (src, 0), \
- __extension__ __STRING2_SMALL_GET32 (src, 4)
-# endif
-__STRING_INLINE void *__mempcpy_small (void *, char, char, char, char,
- __uint16_t, __uint16_t, __uint32_t,
- __uint32_t, size_t);
-__STRING_INLINE void *
-__mempcpy_small (void *__dest1,
- char __src0_1, char __src2_1, char __src4_1, char __src6_1,
- __uint16_t __src0_2, __uint16_t __src4_2,
- __uint32_t __src0_4, __uint32_t __src4_4,
- size_t __srclen)
-{
- union {
- __uint32_t __ui;
- __uint16_t __usi;
- unsigned char __uc;
- unsigned char __c;
- } *__u = __dest1;
- switch ((unsigned int) __srclen)
- {
- case 1:
- __u->__c = __src0_1;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 2:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- break;
- case 3:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__c = __src2_1;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 4:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- break;
- case 5:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__c = __src4_1;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 6:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- break;
- case 7:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__c = __src6_1;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 8:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__ui = __src4_4;
- __u = __extension__ ((void *) __u + 4);
- break;
- }
- return (void *) __u;
-}
-# else
-# ifndef _FORCE_INLINES
-# define __mempcpy_args(src) \
- ((const char *) (src))[0], \
- __extension__ ((__STRING2_COPY_ARR2) \
- { { ((const char *) (src))[0], ((const char *) (src))[1] } }), \
- __extension__ ((__STRING2_COPY_ARR3) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2] } }), \
- __extension__ ((__STRING2_COPY_ARR4) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3] } }), \
- __extension__ ((__STRING2_COPY_ARR5) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4] } }), \
- __extension__ ((__STRING2_COPY_ARR6) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], ((const char *) (src))[5] } }), \
- __extension__ ((__STRING2_COPY_ARR7) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], ((const char *) (src))[5], \
- ((const char *) (src))[6] } }), \
- __extension__ ((__STRING2_COPY_ARR8) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], ((const char *) (src))[5], \
- ((const char *) (src))[6], ((const char *) (src))[7] } })
-# endif
-__STRING_INLINE void *__mempcpy_small (void *, char, __STRING2_COPY_ARR2,
- __STRING2_COPY_ARR3,
- __STRING2_COPY_ARR4,
- __STRING2_COPY_ARR5,
- __STRING2_COPY_ARR6,
- __STRING2_COPY_ARR7,
- __STRING2_COPY_ARR8, size_t);
-__STRING_INLINE void *
-__mempcpy_small (void *__dest, char __src1,
- __STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
- __STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
- __STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
- __STRING2_COPY_ARR8 __src8, size_t __srclen)
-{
- union {
- char __c;
- __STRING2_COPY_ARR2 __sca2;
- __STRING2_COPY_ARR3 __sca3;
- __STRING2_COPY_ARR4 __sca4;
- __STRING2_COPY_ARR5 __sca5;
- __STRING2_COPY_ARR6 __sca6;
- __STRING2_COPY_ARR7 __sca7;
- __STRING2_COPY_ARR8 __sca8;
- } *__u = __dest;
- switch ((unsigned int) __srclen)
- {
- case 1:
- __u->__c = __src1;
- break;
- case 2:
- __extension__ __u->__sca2 = __src2;
- break;
- case 3:
- __extension__ __u->__sca3 = __src3;
- break;
- case 4:
- __extension__ __u->__sca4 = __src4;
- break;
- case 5:
- __extension__ __u->__sca5 = __src5;
- break;
- case 6:
- __extension__ __u->__sca6 = __src6;
- break;
- case 7:
- __extension__ __u->__sca7 = __src7;
- break;
- case 8:
- __extension__ __u->__sca8 = __src8;
- break;
- }
- return __extension__ ((void *) __u + __srclen);
-}
-# endif
-# endif
# endif
#endif
@@ -397,359 +117,20 @@ extern void *__rawmemchr (const void *__s, int __c);
&& (c) == '\0' \
? (char *) __rawmemchr (s, c) \
: __builtin_strchr (s, c)))
-# else
-# define strchr(s, c) \
- (__extension__ (__builtin_constant_p (c) && (c) == '\0' \
- ? (char *) __rawmemchr (s, c) \
- : strchr (s, c)))
-# endif
-#endif
-
-
-/* Copy SRC to DEST. */
-#if (!defined _HAVE_STRING_ARCH_strcpy && !__GNUC_PREREQ (3, 0)) \
- || defined _FORCE_INLINES
-# if !defined _HAVE_STRING_ARCH_strcpy && !__GNUC_PREREQ (3, 0)
-# define strcpy(dest, src) \
- (__extension__ (__builtin_constant_p (src) \
- ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8 \
- ? __strcpy_small (dest, __strcpy_args (src), \
- strlen (src) + 1) \
- : (char *) memcpy (dest, src, strlen (src) + 1)) \
- : strcpy (dest, src)))
-# endif
-
-# if _STRING_ARCH_unaligned
-# ifndef _FORCE_INLINES
-# define __strcpy_args(src) \
- __extension__ __STRING2_SMALL_GET16 (src, 0), \
- __extension__ __STRING2_SMALL_GET16 (src, 4), \
- __extension__ __STRING2_SMALL_GET32 (src, 0), \
- __extension__ __STRING2_SMALL_GET32 (src, 4)
-# endif
-__STRING_INLINE char *__strcpy_small (char *, __uint16_t, __uint16_t,
- __uint32_t, __uint32_t, size_t);
-__STRING_INLINE char *
-__strcpy_small (char *__dest,
- __uint16_t __src0_2, __uint16_t __src4_2,
- __uint32_t __src0_4, __uint32_t __src4_4,
- size_t __srclen)
-{
- union {
- __uint32_t __ui;
- __uint16_t __usi;
- unsigned char __uc;
- } *__u = (void *) __dest;
- switch ((unsigned int) __srclen)
- {
- case 1:
- __u->__uc = '\0';
- break;
- case 2:
- __u->__usi = __src0_2;
- break;
- case 3:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = '\0';
- break;
- case 4:
- __u->__ui = __src0_4;
- break;
- case 5:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__uc = '\0';
- break;
- case 6:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- break;
- case 7:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = '\0';
- break;
- case 8:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__ui = __src4_4;
- break;
- }
- return __dest;
-}
-# else
-# ifndef _FORCE_INLINES
-# define __strcpy_args(src) \
- __extension__ ((__STRING2_COPY_ARR2) \
- { { ((const char *) (src))[0], '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR3) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR4) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR5) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR6) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR7) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], ((const char *) (src))[5], \
- '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR8) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], ((const char *) (src))[5], \
- ((const char *) (src))[6], '\0' } })
-# endif
-__STRING_INLINE char *__strcpy_small (char *, __STRING2_COPY_ARR2,
- __STRING2_COPY_ARR3,
- __STRING2_COPY_ARR4,
- __STRING2_COPY_ARR5,
- __STRING2_COPY_ARR6,
- __STRING2_COPY_ARR7,
- __STRING2_COPY_ARR8, size_t);
-__STRING_INLINE char *
-__strcpy_small (char *__dest,
- __STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
- __STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
- __STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
- __STRING2_COPY_ARR8 __src8, size_t __srclen)
-{
- union {
- char __c;
- __STRING2_COPY_ARR2 __sca2;
- __STRING2_COPY_ARR3 __sca3;
- __STRING2_COPY_ARR4 __sca4;
- __STRING2_COPY_ARR5 __sca5;
- __STRING2_COPY_ARR6 __sca6;
- __STRING2_COPY_ARR7 __sca7;
- __STRING2_COPY_ARR8 __sca8;
- } *__u = (void *) __dest;
- switch ((unsigned int) __srclen)
- {
- case 1:
- __u->__c = '\0';
- break;
- case 2:
- __extension__ __u->__sca2 = __src2;
- break;
- case 3:
- __extension__ __u->__sca3 = __src3;
- break;
- case 4:
- __extension__ __u->__sca4 = __src4;
- break;
- case 5:
- __extension__ __u->__sca5 = __src5;
- break;
- case 6:
- __extension__ __u->__sca6 = __src6;
- break;
- case 7:
- __extension__ __u->__sca7 = __src7;
- break;
- case 8:
- __extension__ __u->__sca8 = __src8;
- break;
- }
- return __dest;
-}
# endif
#endif
-
/* Copy SRC to DEST, returning pointer to final NUL byte. */
#ifdef __USE_GNU
# if !defined _HAVE_STRING_ARCH_stpcpy || defined _FORCE_INLINES
# ifndef _HAVE_STRING_ARCH_stpcpy
# if __GNUC_PREREQ (3, 4)
# define __stpcpy(dest, src) __builtin_stpcpy (dest, src)
-# elif __GNUC_PREREQ (3, 0)
-# define __stpcpy(dest, src) \
- (__extension__ (__builtin_constant_p (src) \
- ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8 \
- ? __builtin_strcpy (dest, src) + strlen (src) \
- : ((char *) (__mempcpy) (dest, src, strlen (src) + 1) \
- - 1)) \
- : __stpcpy (dest, src)))
-# else
-# define __stpcpy(dest, src) \
- (__extension__ (__builtin_constant_p (src) \
- ? (__string2_1bptr_p (src) && strlen (src) + 1 <= 8 \
- ? __stpcpy_small (dest, __stpcpy_args (src), \
- strlen (src) + 1) \
- : ((char *) (__mempcpy) (dest, src, strlen (src) + 1) \
- - 1)) \
- : __stpcpy (dest, src)))
# endif
/* In glibc we use this function frequently but for namespace reasons
we have to use the name `__stpcpy'. */
# define stpcpy(dest, src) __stpcpy (dest, src)
# endif
-
-# if !__GNUC_PREREQ (3, 0) || defined _FORCE_INLINES
-# if _STRING_ARCH_unaligned
-# ifndef _FORCE_INLINES
-# define __stpcpy_args(src) \
- __extension__ __STRING2_SMALL_GET16 (src, 0), \
- __extension__ __STRING2_SMALL_GET16 (src, 4), \
- __extension__ __STRING2_SMALL_GET32 (src, 0), \
- __extension__ __STRING2_SMALL_GET32 (src, 4)
-# endif
-__STRING_INLINE char *__stpcpy_small (char *, __uint16_t, __uint16_t,
- __uint32_t, __uint32_t, size_t);
-__STRING_INLINE char *
-__stpcpy_small (char *__dest,
- __uint16_t __src0_2, __uint16_t __src4_2,
- __uint32_t __src0_4, __uint32_t __src4_4,
- size_t __srclen)
-{
- union {
- unsigned int __ui;
- unsigned short int __usi;
- unsigned char __uc;
- char __c;
- } *__u = (void *) __dest;
- switch ((unsigned int) __srclen)
- {
- case 1:
- __u->__uc = '\0';
- break;
- case 2:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 3:
- __u->__usi = __src0_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = '\0';
- break;
- case 4:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 3);
- break;
- case 5:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__uc = '\0';
- break;
- case 6:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 1);
- break;
- case 7:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__usi = __src4_2;
- __u = __extension__ ((void *) __u + 2);
- __u->__uc = '\0';
- break;
- case 8:
- __u->__ui = __src0_4;
- __u = __extension__ ((void *) __u + 4);
- __u->__ui = __src4_4;
- __u = __extension__ ((void *) __u + 3);
- break;
- }
- return &__u->__c;
-}
-# else
-# ifndef _FORCE_INLINES
-# define __stpcpy_args(src) \
- __extension__ ((__STRING2_COPY_ARR2) \
- { { ((const char *) (src))[0], '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR3) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR4) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR5) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR6) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR7) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], ((const char *) (src))[5], \
- '\0' } }), \
- __extension__ ((__STRING2_COPY_ARR8) \
- { { ((const char *) (src))[0], ((const char *) (src))[1], \
- ((const char *) (src))[2], ((const char *) (src))[3], \
- ((const char *) (src))[4], ((const char *) (src))[5], \
- ((const char *) (src))[6], '\0' } })
-# endif
-__STRING_INLINE char *__stpcpy_small (char *, __STRING2_COPY_ARR2,
- __STRING2_COPY_ARR3,
- __STRING2_COPY_ARR4,
- __STRING2_COPY_ARR5,
- __STRING2_COPY_ARR6,
- __STRING2_COPY_ARR7,
- __STRING2_COPY_ARR8, size_t);
-__STRING_INLINE char *
-__stpcpy_small (char *__dest,
- __STRING2_COPY_ARR2 __src2, __STRING2_COPY_ARR3 __src3,
- __STRING2_COPY_ARR4 __src4, __STRING2_COPY_ARR5 __src5,
- __STRING2_COPY_ARR6 __src6, __STRING2_COPY_ARR7 __src7,
- __STRING2_COPY_ARR8 __src8, size_t __srclen)
-{
- union {
- char __c;
- __STRING2_COPY_ARR2 __sca2;
- __STRING2_COPY_ARR3 __sca3;
- __STRING2_COPY_ARR4 __sca4;
- __STRING2_COPY_ARR5 __sca5;
- __STRING2_COPY_ARR6 __sca6;
- __STRING2_COPY_ARR7 __sca7;
- __STRING2_COPY_ARR8 __sca8;
- } *__u = (void *) __dest;
- switch ((unsigned int) __srclen)
- {
- case 1:
- __u->__c = '\0';
- break;
- case 2:
- __extension__ __u->__sca2 = __src2;
- break;
- case 3:
- __extension__ __u->__sca3 = __src3;
- break;
- case 4:
- __extension__ __u->__sca4 = __src4;
- break;
- case 5:
- __extension__ __u->__sca5 = __src5;
- break;
- case 6:
- __extension__ __u->__sca6 = __src6;
- break;
- case 7:
- __extension__ __u->__sca7 = __src7;
- break;
- case 8:
- __extension__ __u->__sca8 = __src8;
- break;
- }
- return __dest + __srclen - 1;
-}
-# endif
-# endif
# endif
#endif
@@ -758,13 +139,6 @@ __stpcpy_small (char *__dest,
#ifndef _HAVE_STRING_ARCH_strncpy
# if __GNUC_PREREQ (3, 2)
# define strncpy(dest, src, n) __builtin_strncpy (dest, src, n)
-# else
-# define strncpy(dest, src, n) \
- (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n) \
- ? (strlen (src) + 1 >= ((size_t) (n)) \
- ? (char *) memcpy (dest, src, n) \
- : strncpy (dest, src, n)) \
- : strncpy (dest, src, n)))
# endif
#endif
@@ -782,13 +156,6 @@ __stpcpy_small (char *__dest,
: strncat (dest, src, n); }))
# elif __GNUC_PREREQ (3, 2)
# define strncat(dest, src, n) __builtin_strncat (dest, src, n)
-# else
-# define strncat(dest, src, n) \
- (__extension__ (__builtin_constant_p (src) && __builtin_constant_p (n) \
- ? (strlen (src) < ((size_t) (n)) \
- ? strcat (dest, src) \
- : strncat (dest, src, n)) \
- : strncat (dest, src, n)))
# endif
#endif
@@ -815,27 +182,6 @@ __stpcpy_small (char *__dest,
? __builtin_strcmp (s1, s2) \
: __strcmp_gc (s1, s2, __s2_len)) \
: __builtin_strcmp (s1, s2)))); })
-# else
-# define strcmp(s1, s2) \
- __extension__ \
- ({ size_t __s1_len, __s2_len; \
- (__builtin_constant_p (s1) && __builtin_constant_p (s2) \
- && (__s1_len = strlen (s1), __s2_len = strlen (s2), \
- (!__string2_1bptr_p (s1) || __s1_len >= 4) \
- && (!__string2_1bptr_p (s2) || __s2_len >= 4)) \
- ? memcmp ((const char *) (s1), (const char *) (s2), \
- (__s1_len < __s2_len ? __s1_len : __s2_len) + 1) \
- : (__builtin_constant_p (s1) && __string2_1bptr_p (s1) \
- && (__s1_len = strlen (s1), __s1_len < 4) \
- ? (__builtin_constant_p (s2) && __string2_1bptr_p (s2) \
- ? __strcmp_cc (s1, s2, __s1_len) \
- : __strcmp_cg (s1, s2, __s1_len)) \
- : (__builtin_constant_p (s2) && __string2_1bptr_p (s2) \
- && (__s2_len = strlen (s2), __s2_len < 4) \
- ? (__builtin_constant_p (s1) && __string2_1bptr_p (s1) \
- ? __strcmp_cc (s1, s2, __s2_len) \
- : __strcmp_gc (s1, s2, __s2_len)) \
- : strcmp (s1, s2)))); })
# endif
# define __strcmp_cc(s1, s2, l) \
@@ -924,21 +270,6 @@ __stpcpy_small (char *__dest,
? __strcspn_c3 (s, __r0, __r1, __r2) \
: __builtin_strcspn (s, reject)))))) \
: __builtin_strcspn (s, reject)); })
-# else
-# define strcspn(s, reject) \
- __extension__ \
- ({ char __r0, __r1, __r2; \
- (__builtin_constant_p (reject) && __string2_1bptr_p (reject) \
- ? ((__r0 = ((const char *) (reject))[0], __r0 == '\0') \
- ? strlen (s) \
- : ((__r1 = ((const char *) (reject))[1], __r1 == '\0') \
- ? __strcspn_c1 (s, __r0) \
- : ((__r2 = ((const char *) (reject))[2], __r2 == '\0') \
- ? __strcspn_c2 (s, __r0, __r1) \
- : (((const char *) (reject))[3] == '\0' \
- ? __strcspn_c3 (s, __r0, __r1, __r2) \
- : strcspn (s, reject))))) \
- : strcspn (s, reject)); })
# endif
# endif
@@ -1000,21 +331,6 @@ __strcspn_c3 (const char *__s, int __reject1, int __reject2,
? __strspn_c3 (s, __a0, __a1, __a2) \
: __builtin_strspn (s, accept)))))) \
: __builtin_strspn (s, accept)); })
-# else
-# define strspn(s, accept) \
- __extension__ \
- ({ char __a0, __a1, __a2; \
- (__builtin_constant_p (accept) && __string2_1bptr_p (accept) \
- ? ((__a0 = ((const char *) (accept))[0], __a0 == '\0') \
- ? ((void) (s), (size_t) 0) \
- : ((__a1 = ((const char *) (accept))[1], __a1 == '\0') \
- ? __strspn_c1 (s, __a0) \
- : ((__a2 = ((const char *) (accept))[2], __a2 == '\0') \
- ? __strspn_c2 (s, __a0, __a1) \
- : (((const char *) (accept))[3] == '\0' \
- ? __strspn_c3 (s, __a0, __a1, __a2) \
- : strspn (s, accept))))) \
- : strspn (s, accept)); })
# endif
# endif
@@ -1076,21 +392,6 @@ __strspn_c3 (const char *__s, int __accept1, int __accept2, int __accept3)
? __strpbrk_c3 (s, __a0, __a1, __a2) \
: __builtin_strpbrk (s, accept)))))) \
: __builtin_strpbrk (s, accept)); })
-# else
-# define strpbrk(s, accept) \
- __extension__ \
- ({ char __a0, __a1, __a2; \
- (__builtin_constant_p (accept) && __string2_1bptr_p (accept) \
- ? ((__a0 = ((const char *) (accept))[0], __a0 == '\0') \
- ? ((void) (s), (char *) NULL) \
- : ((__a1 = ((const char *) (accept))[1], __a1 == '\0') \
- ? strchr (s, __a0) \
- : ((__a2 = ((const char *) (accept))[2], __a2 == '\0') \
- ? __strpbrk_c2 (s, __a0, __a1) \
- : (((const char *) (accept))[3] == '\0' \
- ? __strpbrk_c3 (s, __a0, __a1, __a2) \
- : strpbrk (s, accept))))) \
- : strpbrk (s, accept)); })
# endif
# endif
@@ -1118,22 +419,6 @@ __strpbrk_c3 (const char *__s, int __accept1, int __accept2, int __accept3)
}
#endif
-
-/* Find the first occurrence of NEEDLE in HAYSTACK. Newer gcc versions
- do this itself. */
-#if !defined _HAVE_STRING_ARCH_strstr && !__GNUC_PREREQ (2, 97)
-# define strstr(haystack, needle) \
- (__extension__ (__builtin_constant_p (needle) && __string2_1bptr_p (needle) \
- ? (((const char *) (needle))[0] == '\0' \
- ? (char *) (size_t) (haystack) \
- : (((const char *) (needle))[1] == '\0' \
- ? strchr (haystack, \
- ((const char *) (needle))[0]) \
- : strstr (haystack, needle))) \
- : strstr (haystack, needle)))
-#endif
-
-
#if !defined _HAVE_STRING_ARCH_strtok_r || defined _FORCE_INLINES
# ifndef _HAVE_STRING_ARCH_strtok_r
# define __strtok_r(s, sep, nextp) \