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/* ===-- 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 dual licensed under the MIT and the University of Illinois Open |
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* Source Licenses. 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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*/ |
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#include "int_lib.h" |
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/* Returns: -a */ |
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/* Effects: aborts if -a overflows */ |
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COMPILER_RT_ABI 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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compilerrt_abort(); |
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return -a; |
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} |