forked from OSchip/llvm-project
29 lines
741 B
C
29 lines
741 B
C
//===-- negvsi2.c - Implement __negvsi2 -----------------------------------===//
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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 __negvsi2 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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#include <stdlib.h>
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// Returns: -a
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// Effects: aborts if -a overflows
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si_int
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__negvsi2(si_int a)
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{
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const si_int MIN = (si_int)1 << ((int)(sizeof(si_int) * CHAR_BIT)-1);
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if (a == MIN)
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abort();
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return -a;
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}
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