| /* ===-- negvdi2.c - Implement __negvdi2 -----------------------------------=== |
| * |
| * The LLVM Compiler Infrastructure |
| * |
| * This file is dual licensed under the MIT and the University of Illinois Open |
| * Source Licenses. See LICENSE.TXT for details. |
| * |
| * ===----------------------------------------------------------------------=== |
| * |
| * This file implements __negvdi2 for the compiler_rt library. |
| * |
| * ===----------------------------------------------------------------------=== |
| */ |
| |
| #include "int_lib.h" |
| #include <stdlib.h> |
| |
| /* Returns: -a */ |
| |
| /* Effects: aborts if -a overflows */ |
| |
| COMPILER_RT_ABI di_int |
| __negvdi2(di_int a) |
| { |
| const di_int MIN = (di_int)1 << ((int)(sizeof(di_int) * CHAR_BIT)-1); |
| if (a == MIN) |
| compilerrt_abort(); |
| return -a; |
| } |