| 1 | /* ===-- ucmpdi2.c - Implement __ucmpdi2 -----------------------------------=== |
| 2 | * |
| 3 | * The LLVM Compiler Infrastructure |
| 4 | * |
| 5 | * This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | * Source Licenses. See LICENSE.TXT for details. |
| 7 | * |
| 8 | * ===----------------------------------------------------------------------=== |
| 9 | * |
| 10 | * This file implements __ucmpdi2 for the compiler_rt library. |
| 11 | * |
| 12 | * ===----------------------------------------------------------------------=== |
| 13 | */ |
| 14 | |
| 15 | #include "int_lib.h" |
| 16 | |
| 17 | /* Returns: if (a < b) returns 0 |
| 18 | * if (a == b) returns 1 |
| 19 | * if (a > b) returns 2 |
| 20 | */ |
| 21 | |
| 22 | COMPILER_RT_ABI si_int |
| 23 | __ucmpdi2(du_int a, du_int b) |
| 24 | { |
| 25 | udwords x; |
| 26 | x.all = a; |
| 27 | udwords y; |
| 28 | y.all = b; |
| 29 | if (x.s.high < y.s.high) |
| 30 | return 0; |
| 31 | if (x.s.high > y.s.high) |
| 32 | return 2; |
| 33 | if (x.s.low < y.s.low) |
| 34 | return 0; |
| 35 | if (x.s.low > y.s.low) |
| 36 | return 2; |
| 37 | return 1; |
| 38 | } |
| 39 | |
| 40 | #ifdef __ARM_EABI__ |
| 41 | /* Returns: if (a < b) returns -1 |
| 42 | * if (a == b) returns 0 |
| 43 | * if (a > b) returns 1 |
| 44 | */ |
| 45 | COMPILER_RT_ABI si_int |
| 46 | __aeabi_ulcmp(di_int a, di_int b) |
| 47 | { |
| 48 | return __ucmpdi2(a, b) - 1; |
| 49 | } |
| 50 | #endif |
| 51 | |
| 52 | |