ef8821e5db
It seems there have only been a small amount to the compiler-rt source code in the mean time. I'd rather have the code in sync as much as possible by the time we release 9.0. Changes: - The libcompiler_rt library is now dual licensed under both the University of Illinois "BSD-Like" license and the MIT license. - Our local modifications for using .hidden instead of .private_extern have been upstreamed, meaning our changes to lib/assembly.h can now be reverted. - A possible endless recursion in __modsi3() has been fixed. - Support for ARM EABI has been added, but it has no effect on FreeBSD (yet). - The functions __udivmodsi4 and __divmodsi4 have been added. Requested by: many, including bf@ and Pedro Giffuni
39 lines
875 B
C
39 lines
875 B
C
/* ===-- addvsi3.c - Implement __addvsi3 -----------------------------------===
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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 __addvsi3 for the compiler_rt library.
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*
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* ===----------------------------------------------------------------------===
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*/
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#include "abi.h"
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#include "int_lib.h"
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#include <stdlib.h>
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/* Returns: a + b */
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/* Effects: aborts if a + b overflows */
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COMPILER_RT_ABI si_int
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__addvsi3(si_int a, si_int b)
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{
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si_int s = a + b;
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if (b >= 0)
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{
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if (s < a)
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compilerrt_abort();
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}
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else
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{
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if (s >= a)
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compilerrt_abort();
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}
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return s;
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}
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