| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame^] | 1 | //===-- cmpdi2.c - Implement __cmpdi2 -------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements __cmpdi2 for the compiler_rt library. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "int_lib.h" |
| 15 | |
| 16 | // Returns: if (a < b) returns 0 |
| 17 | // if (a == b) returns 1 |
| 18 | // if (a > b) returns 2 |
| 19 | |
| 20 | si_int |
| 21 | __cmpdi2(di_int a, di_int b) |
| 22 | { |
| 23 | dwords x; |
| 24 | x.all = a; |
| 25 | dwords y; |
| 26 | y.all = b; |
| 27 | if (x.high < y.high) |
| 28 | return 0; |
| 29 | if (x.high > y.high) |
| 30 | return 2; |
| 31 | if (x.low < y.low) |
| 32 | return 0; |
| 33 | if (x.low > y.low) |
| 34 | return 2; |
| 35 | return 1; |
| 36 | } |