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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /sysdeps/tile/tilepro/rawmemchr.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-zack/build-layout-experiment.tar.gz
glibc-zack/build-layout-experiment.tar.xz
glibc-zack/build-layout-experiment.zip
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'sysdeps/tile/tilepro/rawmemchr.c')
-rw-r--r--sysdeps/tile/tilepro/rawmemchr.c45
1 files changed, 0 insertions, 45 deletions
diff --git a/sysdeps/tile/tilepro/rawmemchr.c b/sysdeps/tile/tilepro/rawmemchr.c
deleted file mode 100644
index a5e714407d..0000000000
--- a/sysdeps/tile/tilepro/rawmemchr.c
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Copyright (C) 2011-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-   Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
-
-   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, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <string.h>
-#include <stdint.h>
-
-void *
-__rawmemchr (const void *s, int c)
-{
-  /* Get an aligned pointer. */
-  const uintptr_t s_int = (uintptr_t) s;
-  const uint32_t *p = (const uint32_t *) (s_int & -4);
-
-  /* Create four copies of the byte for which we are looking. */
-  const uint32_t goal = 0x01010101 * (uint8_t) c;
-
-  /* Read the first word, but munge it so that bytes before the array
-     will not match goal.  Note that this shift count expression works
-     because we know shift counts are taken mod 32.  */
-  const uint32_t before_mask = (1 << (s_int << 3)) - 1;
-  uint32_t v = (*p | before_mask) ^ (goal & before_mask);
-
-  uint32_t bits;
-  while ((bits = __insn_seqb (v, goal)) == 0)
-    v = *++p;
-
-  return ((char *) p) + (__insn_ctz (bits) >> 3);
-}
-libc_hidden_def (__rawmemchr)
-weak_alias (__rawmemchr, rawmemchr)