projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc JJ |
1 | //===-- ffsti2_test.c - Test __ffsti2 -------------------------------------===// |
| 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 tests __ffsti2 for the compiler_rt library. | |
| 11 | // | |
| 12 | //===----------------------------------------------------------------------===// | |
| 13 | ||
| 14 | #include "int_lib.h" | |
| 15 | #include <stdio.h> | |
| 16 | ||
| 17 | #ifdef CRT_HAS_128BIT | |
| 18 | ||
| 19 | // Returns: the index of the least significant 1-bit in a, or | |
| 20 | // the value zero if a is zero. The least significant bit is index one. | |
| 21 | ||
| 92a42be0 | 22 | COMPILER_RT_ABI si_int __ffsti2(ti_int a); |
| 1a4d82fc JJ |
23 | |
| 24 | int test__ffsti2(ti_int a, si_int expected) | |
| 25 | { | |
| 26 | si_int x = __ffsti2(a); | |
| 27 | if (x != expected) | |
| 28 | { | |
| 29 | twords at; | |
| 30 | at.all = a; | |
| 31 | printf("error in __ffsti2(0x%llX%.16llX) = %d, expected %d\n", | |
| 32 | at.s.high, at.s.low, x, expected); | |
| 33 | } | |
| 34 | return x != expected; | |
| 35 | } | |
| 36 | ||
| 37 | char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; | |
| 38 | ||
| 39 | #endif | |
| 40 | ||
| 41 | int main() | |
| 42 | { | |
| 43 | #ifdef CRT_HAS_128BIT | |
| 44 | if (test__ffsti2(0x00000000, 0)) | |
| 45 | return 1; | |
| 46 | if (test__ffsti2(0x00000001, 1)) | |
| 47 | return 1; | |
| 48 | if (test__ffsti2(0x00000002, 2)) | |
| 49 | return 1; | |
| 50 | if (test__ffsti2(0x00000003, 1)) | |
| 51 | return 1; | |
| 52 | if (test__ffsti2(0x00000004, 3)) | |
| 53 | return 1; | |
| 54 | if (test__ffsti2(0x00000005, 1)) | |
| 55 | return 1; | |
| 56 | if (test__ffsti2(0x0000000A, 2)) | |
| 57 | return 1; | |
| 58 | if (test__ffsti2(0x10000000, 29)) | |
| 59 | return 1; | |
| 60 | if (test__ffsti2(0x20000000, 30)) | |
| 61 | return 1; | |
| 62 | if (test__ffsti2(0x60000000, 30)) | |
| 63 | return 1; | |
| 64 | if (test__ffsti2(0x80000000uLL, 32)) | |
| 65 | return 1; | |
| 66 | if (test__ffsti2(0x0000050000000000uLL, 41)) | |
| 67 | return 1; | |
| 68 | if (test__ffsti2(0x0200080000000000uLL, 44)) | |
| 69 | return 1; | |
| 70 | if (test__ffsti2(0x7200000000000000uLL, 58)) | |
| 71 | return 1; | |
| 72 | if (test__ffsti2(0x8000000000000000uLL, 64)) | |
| 73 | return 1; | |
| 74 | if (test__ffsti2(make_ti(0x8000000800000000uLL, 0), 100)) | |
| 75 | return 1; | |
| 76 | if (test__ffsti2(make_ti(0x8000000000000000uLL, 0), 128)) | |
| 77 | return 1; | |
| 78 | ||
| 79 | #else | |
| 80 | printf("skipped\n"); | |
| 81 | #endif | |
| 82 | return 0; | |
| 83 | } |