mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 03:27:39 +00:00
7c83f4abc8
- wcsstr() is now linearly complex - strstr16() is now linearly complex - strstr() is now vectorized on aarch64 (10x) - strstr() now uses KMP on pathological cases - memmem() is now vectorized on aarch64 (10x) - memmem() now uses KMP on pathological cases - Disable shared_ptr::owner_before until fixed - Make iswlower(), iswupper() consistent with glibc - Remove figure space from iswspace() implementation - Include line and paragraph separator in iswcntrl() - Use Musl wcwidth(), iswalpha(), iswpunct(), towlower(), towupper()
38 lines
2.2 KiB
C
38 lines
2.2 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2023 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#ifdef _MSC_VER
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#include <intrin.h>
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#else
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#include <xmmintrin.h>
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#endif
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/**
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* Yields hyperthread.
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*/
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void pthread_pause_np(void) {
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#if defined(__GNUC__) && defined(__aarch64__)
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__asm__("yield");
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#elif defined(__x86_64__) || defined(__i386__)
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_mm_pause();
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#elif defined(__GNUC__) && (defined(__PPC__) || defined(__PPC64__))
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__asm__("or 27,27,27");
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#else
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// do nothing
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#endif
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}
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