1999-03-29 13:25:15 +00:00
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/* Copy SRC to DEST returning the address of the terminating '\0' in DEST.
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For SPARC v7.
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Update.
2004-05-27 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/fpu/bits/mathinline.h (__expm1_code): Define using
__builtin_expm1l for GCC 3.5+.
(__expl): Define using __builtin_expl for GCC 3.4+.
(exp, expf, expl): Don't define for GCC 3.4+.
(tan, tanf, tanl): Don't define for GCC 3.5+.
(__atan2l): Define using __builtin_atan2l for GCC 3.4+.
(atan2, atan2f, atan2l): Don't define for GCC 3.4+ or !__FAST_MATH__.
(fmod, fmodf, fmodl): Don't define for GCC 3.5+ or !__FAST_MATH__.
(fabsf, fabsl): Only provide if __USE_MISC or __USE_ISOC99.
(sin, sinf, sinl, cos, cosf, cosl, log, logf, logl): Don't define
for GCC 3.4+.
(log10, log10f, log10l, asin, asinf, asinl, acos, acosf, acosl):
Don't define for GCC 3.5+.
(atan, atanf, atanl): Don't define for GCC 3.4+ or !__FAST_MATH__.
(log1p, log1pf, log1pl, logb, logbf, logbl, log2, log2f, log2l): Don't
define for GCC 3.5+.
(drem, dremf, dreml): Don't define for GCC 3.5+ or !__FAST_MATH__.
* sysdeps/sparc/fpu/bits/mathinline.h (sqrt, sqrtf, sqrtl): Don't
define for GCC 3.2+.
2004-05-27 Jakub Jelinek <jakub@redhat.com>
* string/bits/string2.h (__bzero): Define even for GCC 3.0+.
* sysdeps/alpha/stpcpy.S (stpcpy): Add libc_hidden_builtin_def.
* sysdeps/alpha/alphaev67/stpcpy.S (stpcpy): Likewise.
* sysdeps/powerpc/powerpc32/stpcpy.S (stpcpy): Likewise.
* sysdeps/powerpc/powerpc64/stpcpy.S (stpcpy): Likewise.
* sysdeps/sparc/sparc32/stpcpy.S (stpcpy): Likewise.
* sysdeps/sparc/sparc64/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/i586/stpcpy.S (stpcpy): Likewise.
* sysdeps/generic/stpcpy.c (stpcpy): Likewise.
* sysdeps/x86_64/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/i586/memcpy.S (memcpy): Remove
libc_hidden_builtin_def if MEMPCPY_P.
* sysdeps/x86_64/memcpy.S (memcpy): Likewise.
* sysdeps/i386/i686/mempcpy.S (mempcpy): Add libc_hidden_builtin_def.
* sysdeps/i386/i586/mempcpy.S (mempcpy): Likewise.
* sysdeps/generic/mempcpy.c (mempcpy): Likewise.
* sysdeps/x86_64/mempcpy.S (mempcpy): Likewise.
2004-05-28 06:56:51 +00:00
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Copyright (C) 1996, 1999, 2002, 2004 Free Software Foundation, Inc.
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1999-03-29 13:25:15 +00:00
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jj@ultra.linux.cz>.
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The GNU C Library is free software; you can redistribute it and/or
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2001-07-06 04:58:11 +00:00
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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1999-03-29 13:25:15 +00:00
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
2001-07-06 04:58:11 +00:00
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Lesser General Public License for more details.
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1999-03-29 13:25:15 +00:00
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2001-07-06 04:58:11 +00:00
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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1999-03-29 13:25:15 +00:00
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#include <sysdep.h>
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/* Normally, this uses ((xword - 0x01010101) & 0x80808080) test
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to find out if any byte in xword could be zero. This is fast, but
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also gives false alarm for any byte in range 0x81-0xff. It does
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not matter for correctness, as if this test tells us there could
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be some zero byte, we check it byte by byte, but if bytes with
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high bits set are common in the strings, then this will give poor
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performance. You can #define EIGHTBIT_NOT_RARE and the algorithm
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will use one tick slower, but more precise test
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((xword - 0x01010101) & (~xword) & 0x80808080),
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which does not give any false alarms (but if some bits are set,
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one cannot assume from it which bytes are zero and which are not).
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It is yet to be measured, what is the correct default for glibc
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in these days for an average user.
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*/
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.text
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.align 4
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10: ldub [%o1], %o5
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stb %o5, [%o0]
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cmp %o5, 0
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add %o0, 1, %o0
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be 1f
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add %o1, 1, %o1
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andcc %o1, 3, %g0
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be 4f
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or %o4, %lo(0x80808080), %o3
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ldub [%o1], %o5
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stb %o5, [%o0]
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cmp %o5, 0
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add %o0, 1, %o0
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be 1f
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add %o1, 1, %o1
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andcc %o1, 3, %g0
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be 5f
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sethi %hi(0x01010101), %o4
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ldub [%o1], %o5
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stb %o5, [%o0]
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cmp %o5, 0
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add %o0, 1, %o0
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be 1f
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add %o1, 1, %o1
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b 6f
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or %o4, %lo(0x01010101), %o2
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1: retl
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add %o0, -1, %o0
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ENTRY(__stpcpy)
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andcc %o1, 3, %g0
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bne 10b
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sethi %hi(0x80808080), %o4
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or %o4, %lo(0x80808080), %o3
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4: sethi %hi(0x01010101), %o4
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5: or %o4, %lo(0x01010101), %o2
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6: andcc %o0, 3, %g0
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bne 16f
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sub %g0, 4, %g1
|
2002-08-04 01:22:11 +00:00
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1999-03-29 13:25:15 +00:00
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11: add %g1, 4, %g1
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ld [%o1 + %g1], %o5
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sub %o5, %o2, %o4
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#ifdef EIGHTBIT_NOT_RARE
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andn %o4, %o5, %o4
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#endif
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andcc %o4, %o3, %g0
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be,a 11b
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st %o5, [%o0 + %g1]
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/* Check every byte. */
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srl %o5, 24, %g5
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andcc %g5, 0xff, %g0
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be 14f
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srl %o5, 16, %g5
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andcc %g5, 0xff, %g0
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be 13f
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srl %o5, 8, %g5
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andcc %g5, 0xff, %g0
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be 12f
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andcc %o5, 0xff, %g0
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bne 11b
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st %o5, [%o0 + %g1]
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add %o0, %g1, %o0
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retl
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add %o0, 3, %o0
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12: srl %o5, 16, %o5
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sth %o5, [%o0 + %g1]
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add %g1, 2, %g1
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stb %g0, [%o0 + %g1]
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retl
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add %o0, %g1, %o0
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13: srl %o5, 16, %o5
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sth %o5, [%o0 + %g1]
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add %g1, 1, %g1
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retl
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add %o0, %g1, %o0
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14: stb %g0, [%o0 + %g1]
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retl
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add %o0, %g1, %o0
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15: srl %o5, 24, %o4
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srl %o5, 16, %g1
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stb %o4, [%o0]
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srl %o5, 8, %g4
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stb %g1, [%o0 + 1]
|
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|
stb %g4, [%o0 + 2]
|
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stb %o5, [%o0 + 3]
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add %o0, 4, %o0
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16: ld [%o1], %o5
|
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sub %o5, %o2, %o4
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andcc %o4, %o3, %g0
|
|
|
|
|
be 15b
|
|
|
|
|
add %o1, 4, %o1
|
|
|
|
|
|
|
|
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|
/* Check every byte. */
|
|
|
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|
srl %o5, 24, %g5
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andcc %g5, 0xff, %g4
|
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|
be 19f
|
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|
stb %g4, [%o0]
|
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|
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srl %o5, 16, %g5
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andcc %g5, 0xff, %g4
|
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|
be 18f
|
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stb %g4, [%o0 + 1]
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srl %o5, 8, %g5
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andcc %g5, 0xff, %g4
|
|
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|
be 17f
|
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stb %g4, [%o0 + 2]
|
|
|
|
|
andcc %o5, 0xff, %g4
|
|
|
|
|
stb %g4, [%o0 + 3]
|
|
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|
|
bne 16b
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|
|
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|
add %o0, 4, %o0
|
|
|
|
|
retl
|
|
|
|
|
sub %o0, 1, %o0
|
|
|
|
|
17: retl
|
|
|
|
|
add %o0, 2, %o0
|
|
|
|
|
18: retl
|
|
|
|
|
add %o0, 1, %o0
|
|
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|
|
19: retl
|
|
|
|
|
nop
|
|
|
|
|
END(__stpcpy)
|
|
|
|
|
|
|
|
|
|
weak_alias(__stpcpy, stpcpy)
|
2002-08-04 01:22:11 +00:00
|
|
|
libc_hidden_def (__stpcpy)
|
Update.
2004-05-27 Jakub Jelinek <jakub@redhat.com>
* sysdeps/i386/fpu/bits/mathinline.h (__expm1_code): Define using
__builtin_expm1l for GCC 3.5+.
(__expl): Define using __builtin_expl for GCC 3.4+.
(exp, expf, expl): Don't define for GCC 3.4+.
(tan, tanf, tanl): Don't define for GCC 3.5+.
(__atan2l): Define using __builtin_atan2l for GCC 3.4+.
(atan2, atan2f, atan2l): Don't define for GCC 3.4+ or !__FAST_MATH__.
(fmod, fmodf, fmodl): Don't define for GCC 3.5+ or !__FAST_MATH__.
(fabsf, fabsl): Only provide if __USE_MISC or __USE_ISOC99.
(sin, sinf, sinl, cos, cosf, cosl, log, logf, logl): Don't define
for GCC 3.4+.
(log10, log10f, log10l, asin, asinf, asinl, acos, acosf, acosl):
Don't define for GCC 3.5+.
(atan, atanf, atanl): Don't define for GCC 3.4+ or !__FAST_MATH__.
(log1p, log1pf, log1pl, logb, logbf, logbl, log2, log2f, log2l): Don't
define for GCC 3.5+.
(drem, dremf, dreml): Don't define for GCC 3.5+ or !__FAST_MATH__.
* sysdeps/sparc/fpu/bits/mathinline.h (sqrt, sqrtf, sqrtl): Don't
define for GCC 3.2+.
2004-05-27 Jakub Jelinek <jakub@redhat.com>
* string/bits/string2.h (__bzero): Define even for GCC 3.0+.
* sysdeps/alpha/stpcpy.S (stpcpy): Add libc_hidden_builtin_def.
* sysdeps/alpha/alphaev67/stpcpy.S (stpcpy): Likewise.
* sysdeps/powerpc/powerpc32/stpcpy.S (stpcpy): Likewise.
* sysdeps/powerpc/powerpc64/stpcpy.S (stpcpy): Likewise.
* sysdeps/sparc/sparc32/stpcpy.S (stpcpy): Likewise.
* sysdeps/sparc/sparc64/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/i586/stpcpy.S (stpcpy): Likewise.
* sysdeps/generic/stpcpy.c (stpcpy): Likewise.
* sysdeps/x86_64/stpcpy.S (stpcpy): Likewise.
* sysdeps/i386/i586/memcpy.S (memcpy): Remove
libc_hidden_builtin_def if MEMPCPY_P.
* sysdeps/x86_64/memcpy.S (memcpy): Likewise.
* sysdeps/i386/i686/mempcpy.S (mempcpy): Add libc_hidden_builtin_def.
* sysdeps/i386/i586/mempcpy.S (mempcpy): Likewise.
* sysdeps/generic/mempcpy.c (mempcpy): Likewise.
* sysdeps/x86_64/mempcpy.S (mempcpy): Likewise.
2004-05-28 06:56:51 +00:00
|
|
|
libc_hidden_builtin_def (stpcpy)
|
