| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 1 | //===-- ctzti2_test.c - Test __ctzti2 -------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| Howard Hinnant | 9ad441f | 2010-11-16 22:13:33 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file tests __ctzti2 for the compiler_rt library. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #if __x86_64 |
| 15 | |
| 16 | #include "int_lib.h" |
| 17 | #include <stdio.h> |
| 18 | |
| 19 | // Returns: the number of trailing 0-bits |
| 20 | |
| 21 | // Precondition: a != 0 |
| 22 | |
| 23 | si_int __ctzti2(ti_int a); |
| 24 | |
| 25 | int test__ctzti2(ti_int a, si_int expected) |
| 26 | { |
| 27 | si_int x = __ctzti2(a); |
| 28 | if (x != expected) |
| 29 | { |
| 30 | twords at; |
| 31 | at.all = a; |
| 32 | printf("error in __ctzti2(0x%llX%.16llX) = %d, expected %d\n", |
| Daniel Dunbar | cff5248 | 2009-10-27 17:49:07 +0000 | [diff] [blame] | 33 | at.s.high, at.s.low, x, expected); |
| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 34 | } |
| 35 | return x != expected; |
| 36 | } |
| 37 | |
| 38 | char assumption_1[sizeof(ti_int) == 2*sizeof(di_int)] = {0}; |
| 39 | |
| 40 | #endif |
| 41 | |
| 42 | int main() |
| 43 | { |
| 44 | #if __x86_64 |
| 45 | if (test__ctzti2(0x00000001, 0)) |
| 46 | return 1; |
| 47 | if (test__ctzti2(0x00000002, 1)) |
| 48 | return 1; |
| 49 | if (test__ctzti2(0x00000003, 0)) |
| 50 | return 1; |
| 51 | if (test__ctzti2(0x00000004, 2)) |
| 52 | return 1; |
| 53 | if (test__ctzti2(0x00000005, 0)) |
| 54 | return 1; |
| 55 | if (test__ctzti2(0x0000000A, 1)) |
| 56 | return 1; |
| 57 | if (test__ctzti2(0x10000000, 28)) |
| 58 | return 1; |
| 59 | if (test__ctzti2(0x20000000, 29)) |
| 60 | return 1; |
| 61 | if (test__ctzti2(0x60000000, 29)) |
| 62 | return 1; |
| 63 | if (test__ctzti2(0x80000000uLL, 31)) |
| 64 | return 1; |
| 65 | if (test__ctzti2(0x0000050000000000uLL, 40)) |
| 66 | return 1; |
| 67 | if (test__ctzti2(0x0200080000000000uLL, 43)) |
| 68 | return 1; |
| 69 | if (test__ctzti2(0x7200000000000000uLL, 57)) |
| 70 | return 1; |
| 71 | if (test__ctzti2(0x8000000000000000uLL, 63)) |
| 72 | return 1; |
| 73 | if (test__ctzti2(make_ti(0x00000000A0000000LL, 0x0000000000000000LL), 93)) |
| 74 | return 1; |
| 75 | if (test__ctzti2(make_ti(0xF000000000000000LL, 0x0000000000000000LL), 124)) |
| 76 | return 1; |
| 77 | if (test__ctzti2(make_ti(0x8000000000000000LL, 0x0000000000000000LL), 127)) |
| 78 | return 1; |
| Joerg Sonnenberger | 7482815 | 2011-05-29 21:43:29 +0000 | [diff] [blame] | 79 | #else |
| 80 | printf("skipped\n"); |
| Daniel Dunbar | b3a6901 | 2009-06-26 16:47:03 +0000 | [diff] [blame] | 81 | #endif |
| 82 | |
| 83 | return 0; |
| 84 | } |