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6fb8cbcb58
This patch includes optimized 64bit memcpy/memmove for Atom, Core 2 and Core i7. It improves memcpy by up to 3X on Atom, up to 4X on Core 2 and up to 1X on Core i7. It also improves memmove by up to 3X on Atom, up to 4X on Core 2 and up to 2X on Core i7.
25 lines
644 B
C
25 lines
644 B
C
#ifndef NOT_IN_libc
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#include "init-arch.h"
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#define MEMMOVE __memmove_sse2
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#ifdef SHARED
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# undef libc_hidden_builtin_def
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# define libc_hidden_builtin_def(name) \
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__hidden_ver1 (__memmove_sse2, __GI_memmove, __memmove_sse2);
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#endif
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#endif
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#include "string/memmove.c"
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#ifndef NOT_IN_libc
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extern __typeof (__memmove_sse2) __memmove_sse2 attribute_hidden;
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extern __typeof (__memmove_sse2) __memmove_ssse3 attribute_hidden;
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extern __typeof (__memmove_sse2) __memmove_ssse3_back attribute_hidden;
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libc_ifunc (memmove,
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HAS_SSSE3
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? (HAS_FAST_COPY_BACKWARD
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? __memmove_ssse3_back : __memmove_ssse3)
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: __memmove_sse2);
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#endif
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