forked from OSchip/llvm-project
27 lines
720 B
C
27 lines
720 B
C
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//===-- paritysi2.c - Implement __paritysi2 -------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements __paritysi2 for the compiler_rt library.
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//
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//===----------------------------------------------------------------------===//
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#include "int_lib.h"
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// Returns: 1 if number of bits is odd else returns 0
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si_int
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__paritysi2(si_int a)
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{
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su_int x = (su_int)a;
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x ^= x >> 16;
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x ^= x >> 8;
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x ^= x >> 4;
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return (0x6996 >> (x & 0xF)) & 1;
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}
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