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Diffstat (limited to 'newlib/libc/machine/spu/strcspn.c')
-rw-r--r-- | newlib/libc/machine/spu/strcspn.c | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/newlib/libc/machine/spu/strcspn.c b/newlib/libc/machine/spu/strcspn.c deleted file mode 100644 index 5f75a290a..000000000 --- a/newlib/libc/machine/spu/strcspn.c +++ /dev/null @@ -1,96 +0,0 @@ -/* - (C) Copyright 2001,2006, - International Business Machines Corporation, - Sony Computer Entertainment, Incorporated, - Toshiba Corporation, - - All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions are met: - - * Redistributions of source code must retain the above copyright notice, - this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in the - documentation and/or other materials provided with the distribution. - * Neither the names of the copyright holders nor the names of their - contributors may be used to endorse or promote products derived from this - software without specific prior written permission. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE - LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - POSSIBILITY OF SUCH DAMAGE. -*/ -#include <spu_intrinsics.h> -#include <stddef.h> -#include "vec_literal.h" - -/* Computes the length of the maximum initial segement - * of the string pointed to by s1 which consists entirely - * of characters not contained in the string pointed to by s2. - */ -size_t strcspn(const char *s1, const char *s2) -{ - size_t len, cnt; - unsigned int offset; - vec_uchar16 shuffle, match, initial_splat, splat; - vec_uchar16 data1, data2, dataA, dataB, *ptr1, *ptr2; - - ptr1 = (vec_uchar16 *)s1; - - offset = (unsigned int)(s1) & 15; - shuffle = (vec_uchar16)spu_add((vec_uint4)spu_splats((unsigned char) offset), - VEC_LITERAL(vec_uint4, 0x0010203, 0x04050607, 0x08090A0B, 0x0C0D0E0F)); - - len = 0; - - dataA = *ptr1++; - dataB = *ptr1++; - - initial_splat = spu_splats((unsigned char)((unsigned int)(s2) & 0xF)); - - /* For each quadword of the string s1. - */ - do { - data1 = spu_shuffle(dataA, dataB, shuffle); - - - ptr2 = (vec_uchar16 *)s2; - data2 = *ptr2; - data2 = spu_shuffle(data2, data2, initial_splat); - ptr2 = (vec_uchar16 *)((unsigned int)(ptr2) + 1); - splat = initial_splat; - - match = spu_cmpeq(data1, 0); - - /* For each character of s2, compare agains a quadword of s1, - * accumulating match success in the variable match. - */ - while (spu_extract((vec_uint4)data2, 0)) { - match = spu_or(match, spu_cmpeq(data1, data2)); - - splat = spu_and((vec_uchar16)(spu_add((vec_uint4)splat, VEC_SPLAT_U32(0x01010101))), 0xF); - - data2 = *ptr2; - data2 = spu_shuffle(data2, data2, splat); - ptr2 = (vec_uchar16 *)((unsigned int)(ptr2) + 1); - } - - cnt = spu_extract(spu_cntlz(spu_gather(match)), 0); - len = (len - 16) + cnt; - - dataA = dataB; - dataB = *ptr1++; - } while (cnt == 32); - - return (len); -} |